/* Machine independent support for SVR4 /proc (process file system) for GDB.
- Copyright 1991, 1992, 1993, 1994, 1995, 1996 Free Software Foundation, Inc.
- Written by Fred Fish at Cygnus Support.
+ Copyright 1991, 1992-98, 1999 Free Software Foundation, Inc.
+ Written by Fred Fish at Cygnus Support. Changes for sysv4.2mp procfs
+ compatibility by Geoffrey Noer at Cygnus Solutions.
-This file is part of GDB.
+ This file is part of GDB.
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
-(at your option) any later version.
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
-You should have received a copy of the GNU General Public License
-along with this program; if not, write to the Free Software
-Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
-/* N O T E S
+/* N O T E S
-For information on the details of using /proc consult section proc(4)
-in the UNIX System V Release 4 System Administrator's Reference Manual.
+ For information on the details of using /proc consult section proc(4)
+ in the UNIX System V Release 4 System Administrator's Reference Manual.
-The general register and floating point register sets are manipulated by
-separate ioctl's. This file makes the assumption that if FP0_REGNUM is
-defined, then support for the floating point register set is desired,
-regardless of whether or not the actual target has floating point hardware.
+ The general register and floating point register sets are manipulated
+ separately. This file makes the assumption that if FP0_REGNUM is
+ defined, then support for the floating point register set is desired,
+ regardless of whether or not the actual target has floating point hardware.
*/
#include "gdb_string.h"
#include <stropts.h>
#include <poll.h>
-#include <unistd.h>
#include "gdb_stat.h"
#include "inferior.h"
#include "gdbcore.h"
#include "gdbthread.h"
+#if !defined(SYS_lwp_create) && defined(SYS_lwpcreate)
+#define SYS_lwp_create SYS_lwpcreate
+#endif
+
+#if !defined(SYS_lwp_exit) && defined(SYS_lwpexit)
+#define SYS_lwp_exit SYS_lwpexit
+#endif
+
+#if !defined(SYS_lwp_wait) && defined(SYS_lwpwait)
+#define SYS_lwp_wait SYS_lwpwait
+#endif
+
+#if !defined(SYS_lwp_self) && defined(SYS_lwpself)
+#define SYS_lwp_self SYS_lwpself
+#endif
+
+#if !defined(SYS_lwp_info) && defined(SYS_lwpinfo)
+#define SYS_lwp_info SYS_lwpinfo
+#endif
+
+#if !defined(SYS_lwp_private) && defined(SYS_lwpprivate)
+#define SYS_lwp_private SYS_lwpprivate
+#endif
+
+#if !defined(SYS_lwp_kill) && defined(SYS_lwpkill)
+#define SYS_lwp_kill SYS_lwpkill
+#endif
+
+#if !defined(SYS_lwp_suspend) && defined(SYS_lwpsuspend)
+#define SYS_lwp_suspend SYS_lwpsuspend
+#endif
+
+#if !defined(SYS_lwp_continue) && defined(SYS_lwpcontinue)
+#define SYS_lwp_continue SYS_lwpcontinue
+#endif
+
+/* the name of the proc status struct depends on the implementation */
+/* Wrap Light Weight Process member in THE_PR_LWP macro for clearer code */
+#ifndef HAVE_PSTATUS_T
+typedef prstatus_t gdb_prstatus_t;
+#define THE_PR_LWP(a) a
+#else /* HAVE_PSTATUS_T */
+typedef pstatus_t gdb_prstatus_t;
+#define THE_PR_LWP(a) a.pr_lwp
+#if !defined(HAVE_PRRUN_T) && defined(HAVE_MULTIPLE_PROC_FDS)
+ /* Fallback definitions - for using configure information directly */
+#ifndef UNIXWARE
+#define UNIXWARE 1
+#endif
+#if !defined(PROCFS_USE_READ_WRITE) && !defined(HAVE_PROCFS_PIOCSET)
+#define PROCFS_USE_READ_WRITE 1
+#endif
+#endif /* !HAVE_PRRUN_T && HAVE_MULTIPLE_PROC_FDS */
+#endif /* HAVE_PSTATUS_T */
+
#define MAX_SYSCALLS 256 /* Maximum number of syscalls for table */
-#ifndef PROC_NAME_FMT
-#define PROC_NAME_FMT "/proc/%05d"
+/* proc name formats may vary depending on the proc implementation */
+#ifdef HAVE_MULTIPLE_PROC_FDS
+#ifndef CTL_PROC_NAME_FMT
+#define CTL_PROC_NAME_FMT "/proc/%d/ctl"
+#define AS_PROC_NAME_FMT "/proc/%d/as"
+#define MAP_PROC_NAME_FMT "/proc/%d/map"
+#define STATUS_PROC_NAME_FMT "/proc/%d/status"
+#endif
+#else /* HAVE_MULTIPLE_PROC_FDS */
+#ifndef CTL_PROC_NAME_FMT
+#define CTL_PROC_NAME_FMT "/proc/%05d"
+#define AS_PROC_NAME_FMT "/proc/%05d"
+#define MAP_PROC_NAME_FMT "/proc/%05d"
+#define STATUS_PROC_NAME_FMT "/proc/%05d"
+#endif
+#endif /* HAVE_MULTIPLE_PROC_FDS */
+
+
+/* These #ifdefs are for sol2.x in particular. sol2.x has
+ both a "gregset_t" and a "prgregset_t", which have
+ similar uses but different layouts. sol2.x gdb tries to
+ use prgregset_t (and prfpregset_t) everywhere. */
+
+#ifdef GDB_GREGSET_TYPE
+typedef GDB_GREGSET_TYPE gdb_gregset_t;
+#else
+typedef gregset_t gdb_gregset_t;
+#endif
+
+#ifdef GDB_FPREGSET_TYPE
+typedef GDB_FPREGSET_TYPE gdb_fpregset_t;
+#else
+typedef fpregset_t gdb_fpregset_t;
#endif
-extern struct target_ops procfs_ops; /* Forward declaration */
+
+#define MAX_PROC_NAME_SIZE sizeof("/proc/1234567890/status")
+
+struct target_ops procfs_ops;
int procfs_suppress_run = 0; /* Non-zero if procfs should pretend not to
be a runnable target. Used by targets
that can sit atop procfs, such as solaris
thread support. */
-#if 1 /* FIXME: Gross and ugly hack to resolve coredep.c global */
+#if 1 /* FIXME: Gross and ugly hack to resolve coredep.c global */
CORE_ADDR kernel_u_addr;
#endif
#define si_uid _data._proc._pdata._kill.uid
#endif /* BROKEN_SIGINFO_H */
+/* Define structures for passing commands to /proc/pid/ctl file. Note that
+ while we create these for the PROCFS_USE_READ_WRITE world, we use them
+ and ignore the extra cmd int in other proc schemes.
+ */
+/* generic ctl msg */
+struct proc_ctl
+ {
+ int cmd;
+ long data;
+ };
+
+/* set general registers */
+struct greg_ctl
+ {
+ int cmd;
+ gdb_gregset_t gregset;
+ };
+
+/* set fp registers */
+struct fpreg_ctl
+ {
+ int cmd;
+ gdb_fpregset_t fpregset;
+ };
+
+/* set signals to be traced */
+struct sig_ctl
+ {
+ int cmd;
+ sigset_t sigset;
+ };
+
+/* set faults to be traced */
+struct flt_ctl
+ {
+ int cmd;
+ fltset_t fltset;
+ };
+
+/* set system calls to be traced */
+struct sys_ctl
+ {
+ int cmd;
+ sysset_t sysset;
+ };
+
+/* set current signal to be traced */
+struct sigi_ctl
+ {
+ int cmd;
+ siginfo_t siginfo;
+ };
+
/* All access to the inferior, either one started by gdb or one that has
- been attached to, is controlled by an instance of a procinfo structure,
- defined below. Since gdb currently only handles one inferior at a time,
- the procinfo structure for the inferior is statically allocated and
- only one exists at any given time. There is a separate procinfo
- structure for use by the "info proc" command, so that we can print
- useful information about any random process without interfering with
- the inferior's procinfo information. */
-
-struct procinfo {
- struct procinfo *next;
- int pid; /* Process ID of inferior */
- int fd; /* File descriptor for /proc entry */
- char *pathname; /* Pathname to /proc entry */
- int had_event; /* poll/select says something happened */
- int was_stopped; /* Nonzero if was stopped prior to attach */
- int nopass_next_sigstop; /* Don't pass a sigstop on next resume */
- prrun_t prrun; /* Control state when it is run */
- prstatus_t prstatus; /* Current process status info */
- gregset_t gregset; /* General register set */
- fpregset_t fpregset; /* Floating point register set */
- fltset_t fltset; /* Current traced hardware fault set */
- sigset_t trace; /* Current traced signal set */
- sysset_t exitset; /* Current traced system call exit set */
- sysset_t entryset; /* Current traced system call entry set */
- fltset_t saved_fltset; /* Saved traced hardware fault set */
- sigset_t saved_trace; /* Saved traced signal set */
- sigset_t saved_sighold; /* Saved held signal set */
- sysset_t saved_exitset; /* Saved traced system call exit set */
- sysset_t saved_entryset; /* Saved traced system call entry set */
- int num_syscall_handlers; /* Number of syscall handlers currently installed */
- struct procfs_syscall_handler *syscall_handlers; /* Pointer to list of syscall trap handlers */
- int new_child; /* Non-zero if it's a new thread */
-};
+ been attached to, is controlled by an instance of a procinfo structure,
+ defined below. Since gdb currently only handles one inferior at a time,
+ the procinfo structure for the inferior is statically allocated and
+ only one exists at any given time. There is a separate procinfo
+ structure for use by the "info proc" command, so that we can print
+ useful information about any random process without interfering with
+ the inferior's procinfo information. */
+
+struct procinfo
+ {
+ struct procinfo *next;
+ int pid; /* Process ID of inferior */
+ int ctl_fd; /* File descriptor for /proc ctl file */
+ int status_fd; /* File descriptor for /proc status file */
+ int as_fd; /* File descriptor for /proc as file */
+ int map_fd; /* File descriptor for /proc map file */
+ char *pathname; /* Pathname to /proc entry */
+ int had_event; /* poll/select says something happened */
+ int was_stopped; /* Nonzero if was stopped prior to attach */
+ int nopass_next_sigstop; /* Don't pass a sigstop on next resume */
+#ifdef HAVE_PRRUN_T
+ prrun_t prrun; /* Control state when it is run */
+#endif
+ gdb_prstatus_t prstatus; /* Current process status info */
+ struct greg_ctl gregset; /* General register set */
+ struct fpreg_ctl fpregset; /* Floating point register set */
+ struct flt_ctl fltset; /* Current traced hardware fault set */
+ struct sig_ctl trace; /* Current traced signal set */
+ struct sys_ctl exitset; /* Current traced system call exit set */
+ struct sys_ctl entryset; /* Current traced system call entry set */
+ struct sig_ctl saved_sighold; /* Saved held signal set */
+ struct flt_ctl saved_fltset; /* Saved traced hardware fault set */
+ struct sig_ctl saved_trace; /* Saved traced signal set */
+ struct sys_ctl saved_exitset; /* Saved traced system call exit set */
+ struct sys_ctl saved_entryset; /* Saved traced system call entry set */
+ int num_syscall_handlers; /* Number of syscall trap handlers
+ currently installed */
+ /* Pointer to list of syscall trap handlers */
+ struct procfs_syscall_handler *syscall_handlers;
+ int saved_rtnval; /* return value and status for wait(), */
+ int saved_statval; /* as supplied by a syscall handler. */
+ int new_child; /* Non-zero if it's a new thread */
+ };
/* List of inferior process information */
static struct procinfo *procinfo_list = NULL;
-
-static struct pollfd *poll_list; /* pollfds used for waiting on /proc */
+static struct pollfd *poll_list; /* pollfds used for waiting on /proc */
static int num_poll_list = 0; /* Number of entries in poll_list */
-static int last_resume_pid = -1; /* Last pid used with procfs_resume */
-
/* Much of the information used in the /proc interface, particularly for
- printing status information, is kept as tables of structures of the
- following form. These tables can be used to map numeric values to
- their symbolic names and to a string that describes their specific use. */
-
-struct trans {
- int value; /* The numeric value */
- char *name; /* The equivalent symbolic value */
- char *desc; /* Short description of value */
-};
+ printing status information, is kept as tables of structures of the
+ following form. These tables can be used to map numeric values to
+ their symbolic names and to a string that describes their specific use. */
+
+struct trans
+ {
+ int value; /* The numeric value */
+ char *name; /* The equivalent symbolic value */
+ char *desc; /* Short description of value */
+ };
/* Translate bits in the pr_flags member of the prstatus structure, into the
- names and desc information. */
+ names and desc information. */
static struct trans pr_flag_table[] =
{
#if defined (PR_STOPPED)
- { PR_STOPPED, "PR_STOPPED", "Process is stopped" },
+ {PR_STOPPED, "PR_STOPPED", "Process is stopped"},
#endif
#if defined (PR_ISTOP)
- { PR_ISTOP, "PR_ISTOP", "Stopped on an event of interest" },
+ {PR_ISTOP, "PR_ISTOP", "Stopped on an event of interest"},
#endif
#if defined (PR_DSTOP)
- { PR_DSTOP, "PR_DSTOP", "A stop directive is in effect" },
+ {PR_DSTOP, "PR_DSTOP", "A stop directive is in effect"},
#endif
#if defined (PR_ASLEEP)
- { PR_ASLEEP, "PR_ASLEEP", "Sleeping in an interruptible system call" },
+ {PR_ASLEEP, "PR_ASLEEP", "Sleeping in an interruptible system call"},
#endif
#if defined (PR_FORK)
- { PR_FORK, "PR_FORK", "Inherit-on-fork is in effect" },
+ {PR_FORK, "PR_FORK", "Inherit-on-fork is in effect"},
#endif
#if defined (PR_RLC)
- { PR_RLC, "PR_RLC", "Run-on-last-close is in effect" },
+ {PR_RLC, "PR_RLC", "Run-on-last-close is in effect"},
#endif
#if defined (PR_PTRACE)
- { PR_PTRACE, "PR_PTRACE", "Process is being controlled by ptrace" },
+ {PR_PTRACE, "PR_PTRACE", "Process is being controlled by ptrace"},
#endif
#if defined (PR_PCINVAL)
- { PR_PCINVAL, "PR_PCINVAL", "PC refers to an invalid virtual address" },
+ {PR_PCINVAL, "PR_PCINVAL", "PC refers to an invalid virtual address"},
#endif
#if defined (PR_ISSYS)
- { PR_ISSYS, "PR_ISSYS", "Is a system process" },
+ {PR_ISSYS, "PR_ISSYS", "Is a system process"},
#endif
#if defined (PR_STEP)
- { PR_STEP, "PR_STEP", "Process has single step pending" },
+ {PR_STEP, "PR_STEP", "Process has single step pending"},
#endif
#if defined (PR_KLC)
- { PR_KLC, "PR_KLC", "Kill-on-last-close is in effect" },
+ {PR_KLC, "PR_KLC", "Kill-on-last-close is in effect"},
#endif
#if defined (PR_ASYNC)
- { PR_ASYNC, "PR_ASYNC", "Asynchronous stop is in effect" },
+ {PR_ASYNC, "PR_ASYNC", "Asynchronous stop is in effect"},
#endif
#if defined (PR_PCOMPAT)
- { PR_PCOMPAT, "PR_PCOMPAT", "Ptrace compatibility mode in effect" },
+ {PR_PCOMPAT, "PR_PCOMPAT", "Ptrace compatibility mode in effect"},
+#endif
+#if defined (PR_MSACCT)
+ {PR_MSACCT, "PR_MSACCT", "Microstate accounting enabled"},
+#endif
+#if defined (PR_BPTADJ)
+ {PR_BPTADJ, "PR_BPTADJ", "Breakpoint PC adjustment in effect"},
+#endif
+#if defined (PR_ASLWP)
+ {PR_ASLWP, "PR_ASLWP", "Asynchronus signal LWP"},
#endif
- { 0, NULL, NULL }
+ {0, NULL, NULL}
};
/* Translate values in the pr_why field of the prstatus struct. */
static struct trans pr_why_table[] =
{
#if defined (PR_REQUESTED)
- { PR_REQUESTED, "PR_REQUESTED", "Directed to stop via PIOCSTOP/PIOCWSTOP" },
+ {PR_REQUESTED, "PR_REQUESTED", "Directed to stop via PIOCSTOP/PIOCWSTOP"},
#endif
#if defined (PR_SIGNALLED)
- { PR_SIGNALLED, "PR_SIGNALLED", "Receipt of a traced signal" },
-#endif
-#if defined (PR_FAULTED)
- { PR_FAULTED, "PR_FAULTED", "Incurred a traced hardware fault" },
+ {PR_SIGNALLED, "PR_SIGNALLED", "Receipt of a traced signal"},
#endif
#if defined (PR_SYSENTRY)
- { PR_SYSENTRY, "PR_SYSENTRY", "Entry to a traced system call" },
+ {PR_SYSENTRY, "PR_SYSENTRY", "Entry to a traced system call"},
#endif
#if defined (PR_SYSEXIT)
- { PR_SYSEXIT, "PR_SYSEXIT", "Exit from a traced system call" },
+ {PR_SYSEXIT, "PR_SYSEXIT", "Exit from a traced system call"},
#endif
#if defined (PR_JOBCONTROL)
- { PR_JOBCONTROL, "PR_JOBCONTROL", "Default job control stop signal action" },
+ {PR_JOBCONTROL, "PR_JOBCONTROL", "Default job control stop signal action"},
+#endif
+#if defined (PR_FAULTED)
+ {PR_FAULTED, "PR_FAULTED", "Incurred a traced hardware fault"},
#endif
#if defined (PR_SUSPENDED)
- { PR_SUSPENDED, "PR_SUSPENDED", "Process suspended" },
+ {PR_SUSPENDED, "PR_SUSPENDED", "Process suspended"},
+#endif
+#if defined (PR_CHECKPOINT)
+ {PR_CHECKPOINT, "PR_CHECKPOINT", "(???)"},
#endif
- { 0, NULL, NULL }
+ {0, NULL, NULL}
};
/* Hardware fault translation table. */
static struct trans faults_table[] =
{
#if defined (FLTILL)
- { FLTILL, "FLTILL", "Illegal instruction" },
+ {FLTILL, "FLTILL", "Illegal instruction"},
#endif
#if defined (FLTPRIV)
- { FLTPRIV, "FLTPRIV", "Privileged instruction" },
+ {FLTPRIV, "FLTPRIV", "Privileged instruction"},
#endif
#if defined (FLTBPT)
- { FLTBPT, "FLTBPT", "Breakpoint trap" },
+ {FLTBPT, "FLTBPT", "Breakpoint trap"},
#endif
#if defined (FLTTRACE)
- { FLTTRACE, "FLTTRACE", "Trace trap" },
+ {FLTTRACE, "FLTTRACE", "Trace trap"},
#endif
#if defined (FLTACCESS)
- { FLTACCESS, "FLTACCESS", "Memory access fault" },
+ {FLTACCESS, "FLTACCESS", "Memory access fault"},
#endif
#if defined (FLTBOUNDS)
- { FLTBOUNDS, "FLTBOUNDS", "Memory bounds violation" },
+ {FLTBOUNDS, "FLTBOUNDS", "Memory bounds violation"},
#endif
#if defined (FLTIOVF)
- { FLTIOVF, "FLTIOVF", "Integer overflow" },
+ {FLTIOVF, "FLTIOVF", "Integer overflow"},
#endif
#if defined (FLTIZDIV)
- { FLTIZDIV, "FLTIZDIV", "Integer zero divide" },
+ {FLTIZDIV, "FLTIZDIV", "Integer zero divide"},
#endif
#if defined (FLTFPE)
- { FLTFPE, "FLTFPE", "Floating-point exception" },
+ {FLTFPE, "FLTFPE", "Floating-point exception"},
#endif
#if defined (FLTSTACK)
- { FLTSTACK, "FLTSTACK", "Unrecoverable stack fault" },
+ {FLTSTACK, "FLTSTACK", "Unrecoverable stack fault"},
#endif
#if defined (FLTPAGE)
- { FLTPAGE, "FLTPAGE", "Recoverable page fault" },
+ {FLTPAGE, "FLTPAGE", "Recoverable page fault"},
#endif
- { 0, NULL, NULL }
+ {0, NULL, NULL}
};
/* Translation table for signal generation information. See UNIX System
V Release 4 Programmer's Reference Manual, siginfo(5). */
-static struct sigcode {
- int signo;
- int code;
- char *codename;
- char *desc;
-} siginfo_table[] = {
+static struct sigcode
+ {
+ int signo;
+ int code;
+ char *codename;
+ char *desc;
+ }
+siginfo_table[] =
+{
#if defined (SIGILL) && defined (ILL_ILLOPC)
- { SIGILL, ILL_ILLOPC, "ILL_ILLOPC", "Illegal opcode" },
+ {
+ SIGILL, ILL_ILLOPC, "ILL_ILLOPC", "Illegal opcode"
+ }
+ ,
#endif
#if defined (SIGILL) && defined (ILL_ILLOPN)
- { SIGILL, ILL_ILLOPN, "ILL_ILLOPN", "Illegal operand", },
+ {
+ SIGILL, ILL_ILLOPN, "ILL_ILLOPN", "Illegal operand",
+ }
+ ,
#endif
#if defined (SIGILL) && defined (ILL_ILLADR)
- { SIGILL, ILL_ILLADR, "ILL_ILLADR", "Illegal addressing mode" },
+ {
+ SIGILL, ILL_ILLADR, "ILL_ILLADR", "Illegal addressing mode"
+ }
+ ,
#endif
#if defined (SIGILL) && defined (ILL_ILLTRP)
- { SIGILL, ILL_ILLTRP, "ILL_ILLTRP", "Illegal trap" },
+ {
+ SIGILL, ILL_ILLTRP, "ILL_ILLTRP", "Illegal trap"
+ }
+ ,
#endif
#if defined (SIGILL) && defined (ILL_PRVOPC)
- { SIGILL, ILL_PRVOPC, "ILL_PRVOPC", "Privileged opcode" },
+ {
+ SIGILL, ILL_PRVOPC, "ILL_PRVOPC", "Privileged opcode"
+ }
+ ,
#endif
#if defined (SIGILL) && defined (ILL_PRVREG)
- { SIGILL, ILL_PRVREG, "ILL_PRVREG", "Privileged register" },
+ {
+ SIGILL, ILL_PRVREG, "ILL_PRVREG", "Privileged register"
+ }
+ ,
#endif
#if defined (SIGILL) && defined (ILL_COPROC)
- { SIGILL, ILL_COPROC, "ILL_COPROC", "Coprocessor error" },
+ {
+ SIGILL, ILL_COPROC, "ILL_COPROC", "Coprocessor error"
+ }
+ ,
#endif
#if defined (SIGILL) && defined (ILL_BADSTK)
- { SIGILL, ILL_BADSTK, "ILL_BADSTK", "Internal stack error" },
+ {
+ SIGILL, ILL_BADSTK, "ILL_BADSTK", "Internal stack error"
+ }
+ ,
#endif
#if defined (SIGFPE) && defined (FPE_INTDIV)
- { SIGFPE, FPE_INTDIV, "FPE_INTDIV", "Integer divide by zero" },
+ {
+ SIGFPE, FPE_INTDIV, "FPE_INTDIV", "Integer divide by zero"
+ }
+ ,
#endif
#if defined (SIGFPE) && defined (FPE_INTOVF)
- { SIGFPE, FPE_INTOVF, "FPE_INTOVF", "Integer overflow" },
+ {
+ SIGFPE, FPE_INTOVF, "FPE_INTOVF", "Integer overflow"
+ }
+ ,
#endif
#if defined (SIGFPE) && defined (FPE_FLTDIV)
- { SIGFPE, FPE_FLTDIV, "FPE_FLTDIV", "Floating point divide by zero" },
+ {
+ SIGFPE, FPE_FLTDIV, "FPE_FLTDIV", "Floating point divide by zero"
+ }
+ ,
#endif
#if defined (SIGFPE) && defined (FPE_FLTOVF)
- { SIGFPE, FPE_FLTOVF, "FPE_FLTOVF", "Floating point overflow" },
+ {
+ SIGFPE, FPE_FLTOVF, "FPE_FLTOVF", "Floating point overflow"
+ }
+ ,
#endif
#if defined (SIGFPE) && defined (FPE_FLTUND)
- { SIGFPE, FPE_FLTUND, "FPE_FLTUND", "Floating point underflow" },
+ {
+ SIGFPE, FPE_FLTUND, "FPE_FLTUND", "Floating point underflow"
+ }
+ ,
#endif
#if defined (SIGFPE) && defined (FPE_FLTRES)
- { SIGFPE, FPE_FLTRES, "FPE_FLTRES", "Floating point inexact result" },
+ {
+ SIGFPE, FPE_FLTRES, "FPE_FLTRES", "Floating point inexact result"
+ }
+ ,
#endif
#if defined (SIGFPE) && defined (FPE_FLTINV)
- { SIGFPE, FPE_FLTINV, "FPE_FLTINV", "Invalid floating point operation" },
+ {
+ SIGFPE, FPE_FLTINV, "FPE_FLTINV", "Invalid floating point operation"
+ }
+ ,
#endif
#if defined (SIGFPE) && defined (FPE_FLTSUB)
- { SIGFPE, FPE_FLTSUB, "FPE_FLTSUB", "Subscript out of range" },
+ {
+ SIGFPE, FPE_FLTSUB, "FPE_FLTSUB", "Subscript out of range"
+ }
+ ,
#endif
#if defined (SIGSEGV) && defined (SEGV_MAPERR)
- { SIGSEGV, SEGV_MAPERR, "SEGV_MAPERR", "Address not mapped to object" },
+ {
+ SIGSEGV, SEGV_MAPERR, "SEGV_MAPERR", "Address not mapped to object"
+ }
+ ,
#endif
#if defined (SIGSEGV) && defined (SEGV_ACCERR)
- { SIGSEGV, SEGV_ACCERR, "SEGV_ACCERR", "Invalid permissions for object" },
+ {
+ SIGSEGV, SEGV_ACCERR, "SEGV_ACCERR", "Invalid permissions for object"
+ }
+ ,
#endif
#if defined (SIGBUS) && defined (BUS_ADRALN)
- { SIGBUS, BUS_ADRALN, "BUS_ADRALN", "Invalid address alignment" },
+ {
+ SIGBUS, BUS_ADRALN, "BUS_ADRALN", "Invalid address alignment"
+ }
+ ,
#endif
#if defined (SIGBUS) && defined (BUS_ADRERR)
- { SIGBUS, BUS_ADRERR, "BUS_ADRERR", "Non-existent physical address" },
+ {
+ SIGBUS, BUS_ADRERR, "BUS_ADRERR", "Non-existent physical address"
+ }
+ ,
#endif
#if defined (SIGBUS) && defined (BUS_OBJERR)
- { SIGBUS, BUS_OBJERR, "BUS_OBJERR", "Object specific hardware error" },
+ {
+ SIGBUS, BUS_OBJERR, "BUS_OBJERR", "Object specific hardware error"
+ }
+ ,
#endif
#if defined (SIGTRAP) && defined (TRAP_BRKPT)
- { SIGTRAP, TRAP_BRKPT, "TRAP_BRKPT", "Process breakpoint" },
+ {
+ SIGTRAP, TRAP_BRKPT, "TRAP_BRKPT", "Process breakpoint"
+ }
+ ,
#endif
#if defined (SIGTRAP) && defined (TRAP_TRACE)
- { SIGTRAP, TRAP_TRACE, "TRAP_TRACE", "Process trace trap" },
+ {
+ SIGTRAP, TRAP_TRACE, "TRAP_TRACE", "Process trace trap"
+ }
+ ,
#endif
#if defined (SIGCLD) && defined (CLD_EXITED)
- { SIGCLD, CLD_EXITED, "CLD_EXITED", "Child has exited" },
+ {
+ SIGCLD, CLD_EXITED, "CLD_EXITED", "Child has exited"
+ }
+ ,
#endif
#if defined (SIGCLD) && defined (CLD_KILLED)
- { SIGCLD, CLD_KILLED, "CLD_KILLED", "Child was killed" },
+ {
+ SIGCLD, CLD_KILLED, "CLD_KILLED", "Child was killed"
+ }
+ ,
#endif
#if defined (SIGCLD) && defined (CLD_DUMPED)
- { SIGCLD, CLD_DUMPED, "CLD_DUMPED", "Child has terminated abnormally" },
+ {
+ SIGCLD, CLD_DUMPED, "CLD_DUMPED", "Child has terminated abnormally"
+ }
+ ,
#endif
#if defined (SIGCLD) && defined (CLD_TRAPPED)
- { SIGCLD, CLD_TRAPPED, "CLD_TRAPPED", "Traced child has trapped" },
+ {
+ SIGCLD, CLD_TRAPPED, "CLD_TRAPPED", "Traced child has trapped"
+ }
+ ,
#endif
#if defined (SIGCLD) && defined (CLD_STOPPED)
- { SIGCLD, CLD_STOPPED, "CLD_STOPPED", "Child has stopped" },
+ {
+ SIGCLD, CLD_STOPPED, "CLD_STOPPED", "Child has stopped"
+ }
+ ,
#endif
#if defined (SIGCLD) && defined (CLD_CONTINUED)
- { SIGCLD, CLD_CONTINUED, "CLD_CONTINUED", "Stopped child had continued" },
+ {
+ SIGCLD, CLD_CONTINUED, "CLD_CONTINUED", "Stopped child had continued"
+ }
+ ,
#endif
#if defined (SIGPOLL) && defined (POLL_IN)
- { SIGPOLL, POLL_IN, "POLL_IN", "Input input available" },
+ {
+ SIGPOLL, POLL_IN, "POLL_IN", "Input input available"
+ }
+ ,
#endif
#if defined (SIGPOLL) && defined (POLL_OUT)
- { SIGPOLL, POLL_OUT, "POLL_OUT", "Output buffers available" },
+ {
+ SIGPOLL, POLL_OUT, "POLL_OUT", "Output buffers available"
+ }
+ ,
#endif
#if defined (SIGPOLL) && defined (POLL_MSG)
- { SIGPOLL, POLL_MSG, "POLL_MSG", "Input message available" },
+ {
+ SIGPOLL, POLL_MSG, "POLL_MSG", "Input message available"
+ }
+ ,
#endif
#if defined (SIGPOLL) && defined (POLL_ERR)
- { SIGPOLL, POLL_ERR, "POLL_ERR", "I/O error" },
+ {
+ SIGPOLL, POLL_ERR, "POLL_ERR", "I/O error"
+ }
+ ,
#endif
#if defined (SIGPOLL) && defined (POLL_PRI)
- { SIGPOLL, POLL_PRI, "POLL_PRI", "High priority input available" },
+ {
+ SIGPOLL, POLL_PRI, "POLL_PRI", "High priority input available"
+ }
+ ,
#endif
#if defined (SIGPOLL) && defined (POLL_HUP)
- { SIGPOLL, POLL_HUP, "POLL_HUP", "Device disconnected" },
+ {
+ SIGPOLL, POLL_HUP, "POLL_HUP", "Device disconnected"
+ }
+ ,
#endif
- { 0, 0, NULL, NULL }
+ {
+ 0, 0, NULL, NULL
+ }
};
static char *syscall_table[MAX_SYSCALLS];
/* Prototypes for local functions */
+static void procfs_stop PARAMS ((void));
+
+static int procfs_thread_alive PARAMS ((int));
+
+static int procfs_can_run PARAMS ((void));
+
+static void procfs_mourn_inferior PARAMS ((void));
+
+static void procfs_fetch_registers PARAMS ((int));
+
+static int procfs_wait PARAMS ((int, struct target_waitstatus *));
+
+static void procfs_open PARAMS ((char *, int));
+
+static void procfs_files_info PARAMS ((struct target_ops *));
+
+static void procfs_prepare_to_store PARAMS ((void));
+
+static void procfs_detach PARAMS ((char *, int));
+
+static void procfs_attach PARAMS ((char *, int));
+
+static void proc_set_exec_trap PARAMS ((void));
+
+static void procfs_init_inferior PARAMS ((int));
+
+static struct procinfo *create_procinfo PARAMS ((int));
+
+static void procfs_store_registers PARAMS ((int));
+
+static int procfs_xfer_memory PARAMS ((CORE_ADDR, char *, int, int, struct target_ops *));
+
+static void procfs_kill_inferior PARAMS ((void));
+
+static char *sigcodedesc PARAMS ((siginfo_t *));
+
+static char *sigcodename PARAMS ((siginfo_t *));
+
+static struct procinfo *wait_fd PARAMS ((void));
+
+static void remove_fd PARAMS ((struct procinfo *));
+
+static void add_fd PARAMS ((struct procinfo *));
+
static void set_proc_siginfo PARAMS ((struct procinfo *, int));
static void init_syscall_table PARAMS ((void));
static int proc_address_to_fd PARAMS ((struct procinfo *, CORE_ADDR, int));
-static int open_proc_file PARAMS ((int, struct procinfo *, int));
+static int open_proc_file PARAMS ((int, struct procinfo *, int, int));
static void close_proc_file PARAMS ((struct procinfo *));
+static void close_proc_file_cleanup PARAMS ((void *));
+
+static struct cleanup *make_cleanup_close_proc_file PARAMS ((struct procinfo *));
+
static void unconditionally_kill_inferior PARAMS ((struct procinfo *));
-static NORETURN void proc_init_failed PARAMS ((struct procinfo *, char *)) ATTR_NORETURN;
+static NORETURN void proc_init_failed
+PARAMS ((struct procinfo *, char *, int)) ATTR_NORETURN;
+
+ static void info_proc PARAMS ((char *, int));
+
+ static void info_proc_flags PARAMS ((struct procinfo *, int));
-static void info_proc PARAMS ((char *, int));
+ static void info_proc_stop PARAMS ((struct procinfo *, int));
-static void info_proc_flags PARAMS ((struct procinfo *, int));
+ static void info_proc_siginfo PARAMS ((struct procinfo *, int));
-static void info_proc_stop PARAMS ((struct procinfo *, int));
+ static void info_proc_syscalls PARAMS ((struct procinfo *, int));
-static void info_proc_siginfo PARAMS ((struct procinfo *, int));
+ static void info_proc_mappings PARAMS ((struct procinfo *, int));
-static void info_proc_syscalls PARAMS ((struct procinfo *, int));
+ static void info_proc_signals PARAMS ((struct procinfo *, int));
-static void info_proc_mappings PARAMS ((struct procinfo *, int));
+ static void info_proc_faults PARAMS ((struct procinfo *, int));
-static void info_proc_signals PARAMS ((struct procinfo *, int));
+ static char *mappingflags PARAMS ((long));
-static void info_proc_faults PARAMS ((struct procinfo *, int));
+ static char *lookupname PARAMS ((struct trans *, unsigned int, char *));
-static char *mappingflags PARAMS ((long));
+ static char *lookupdesc PARAMS ((struct trans *, unsigned int));
-static char *lookupname PARAMS ((struct trans *, unsigned int, char *));
+ static int do_attach PARAMS ((int pid));
-static char *lookupdesc PARAMS ((struct trans *, unsigned int));
+ static void do_detach PARAMS ((int siggnal));
-static int do_attach PARAMS ((int pid));
+ static void procfs_create_inferior PARAMS ((char *, char *, char **));
-static void do_detach PARAMS ((int siggnal));
+ static void procfs_notice_signals PARAMS ((int pid));
-static void procfs_create_inferior PARAMS ((char *, char *, char **));
+ static void notice_signals PARAMS ((struct procinfo *, struct sig_ctl *));
-static void procfs_notice_signals PARAMS ((int pid));
+ static struct procinfo *find_procinfo PARAMS ((pid_t pid, int okfail));
-static struct procinfo *find_procinfo PARAMS ((pid_t pid, int okfail));
+ static int procfs_write_pcwstop PARAMS ((struct procinfo *));
+ static int procfs_read_status PARAMS ((struct procinfo *));
+ static void procfs_write_pckill PARAMS ((struct procinfo *));
-typedef int syscall_func_t PARAMS ((struct procinfo *pi, int syscall_num,
- int why, int *rtnval, int *statval));
+ typedef int syscall_func_t PARAMS ((struct procinfo * pi, int syscall_num,
+ int why, int *rtnval, int *statval));
-static void procfs_set_syscall_trap PARAMS ((struct procinfo *pi,
- int syscall_num, int flags,
- syscall_func_t *func));
+ static void procfs_set_syscall_trap PARAMS ((struct procinfo * pi,
+ int syscall_num, int flags,
+ syscall_func_t * func));
-static void procfs_clear_syscall_trap PARAMS ((struct procinfo *pi,
+ static void procfs_clear_syscall_trap PARAMS ((struct procinfo * pi,
int syscall_num, int errok));
-#define PROCFS_SYSCALL_ENTRY 0x1 /* Trap on entry to sys call */
+#define PROCFS_SYSCALL_ENTRY 0x1 /* Trap on entry to sys call */
#define PROCFS_SYSCALL_EXIT 0x2 /* Trap on exit from sys call */
-static syscall_func_t procfs_exit_handler;
+ static syscall_func_t procfs_exit_handler;
-static syscall_func_t procfs_exec_handler;
+ static syscall_func_t procfs_exec_handler;
#ifdef SYS_sproc
-static syscall_func_t procfs_sproc_handler;
-static syscall_func_t procfs_fork_handler;
+ static syscall_func_t procfs_sproc_handler;
+ static syscall_func_t procfs_fork_handler;
#endif
#ifdef SYS_lwp_create
-static syscall_func_t procfs_lwp_creation_handler;
+ static syscall_func_t procfs_lwp_creation_handler;
#endif
-static void modify_inherit_on_fork_flag PARAMS ((int fd, int flag));
-static void modify_run_on_last_close_flag PARAMS ((int fd, int flag));
+ static void modify_inherit_on_fork_flag PARAMS ((int fd, int flag));
+ static void modify_run_on_last_close_flag PARAMS ((int fd, int flag));
/* */
-struct procfs_syscall_handler
-{
- int syscall_num; /* The number of the system call being handled */
- /* The function to be called */
- syscall_func_t *func;
-};
+ struct procfs_syscall_handler
+ {
+ int syscall_num; /* The number of the system call being handled */
+ /* The function to be called */
+ syscall_func_t *func;
+ };
-static void procfs_resume PARAMS ((int pid, int step,
- enum target_signal signo));
+ static void procfs_resume PARAMS ((int pid, int step,
+ enum target_signal signo));
+
+ static void init_procfs_ops PARAMS ((void));
/* External function prototypes that can't be easily included in any
header file because the args are typedefs in system include files. */
-extern void supply_gregset PARAMS ((gregset_t *));
+ extern void supply_gregset PARAMS ((gdb_gregset_t *));
-extern void fill_gregset PARAMS ((gregset_t *, int));
+ extern void fill_gregset PARAMS ((gdb_gregset_t *, int));
-extern void supply_fpregset PARAMS ((fpregset_t *));
+#ifdef FP0_REGNUM
+ extern void supply_fpregset PARAMS ((gdb_fpregset_t *));
-extern void fill_fpregset PARAMS ((fpregset_t *, int));
+ extern void fill_fpregset PARAMS ((gdb_fpregset_t *, int));
+#endif
/*
-LOCAL FUNCTION
+ LOCAL FUNCTION
- find_procinfo -- convert a process id to a struct procinfo
+ find_procinfo -- convert a process id to a struct procinfo
-SYNOPSIS
+ SYNOPSIS
- static struct procinfo * find_procinfo (pid_t pid, int okfail);
+ static struct procinfo * find_procinfo (pid_t pid, int okfail);
-DESCRIPTION
-
- Given a process id, look it up in the procinfo chain. Returns
- a struct procinfo *. If can't find pid, then call error(),
- unless okfail is set, in which case, return NULL;
+ DESCRIPTION
+
+ Given a process id, look it up in the procinfo chain. Returns
+ a struct procinfo *. If can't find pid, then call error(),
+ unless okfail is set, in which case, return NULL;
*/
-static struct procinfo *
-find_procinfo (pid, okfail)
+ static struct procinfo *
+ find_procinfo (pid, okfail)
pid_t pid;
int okfail;
{
/*
-LOCAL MACRO
+ LOCAL MACRO
- current_procinfo -- convert inferior_pid to a struct procinfo
+ current_procinfo -- convert inferior_pid to a struct procinfo
-SYNOPSIS
+ SYNOPSIS
- static struct procinfo * current_procinfo;
+ static struct procinfo * current_procinfo;
-DESCRIPTION
-
- Looks up inferior_pid in the procinfo chain. Always returns a
- struct procinfo *. If process can't be found, we error() out.
+ DESCRIPTION
+
+ Looks up inferior_pid in the procinfo chain. Always returns a
+ struct procinfo *. If process can't be found, we error() out.
*/
#define current_procinfo find_procinfo (inferior_pid, 0)
/*
-LOCAL FUNCTION
+ LOCAL FUNCTION
+
+ add_fd -- Add the fd to the poll/select list
- add_fd -- Add the fd to the poll/select list
+ SYNOPSIS
-SYNOPSIS
+ static void add_fd (struct procinfo *);
- static void add_fd (struct procinfo *);
+ DESCRIPTION
-DESCRIPTION
-
- Add the fd of the supplied procinfo to the list of fds used for
- poll/select operations.
+ Add the fd of the supplied procinfo to the list of fds used for
+ poll/select operations.
*/
static void
poll_list = (struct pollfd *) xrealloc (poll_list,
(num_poll_list + 1)
* sizeof (struct pollfd));
- poll_list[num_poll_list].fd = pi->fd;
+ poll_list[num_poll_list].fd = pi->ctl_fd;
+#ifdef UNIXWARE
+ poll_list[num_poll_list].events = POLLWRNORM;
+#else
poll_list[num_poll_list].events = POLLPRI;
+#endif
num_poll_list++;
}
+/*
+
+ LOCAL FUNCTION
+
+ remove_fd -- Remove the fd from the poll/select list
+
+ SYNOPSIS
+
+ static void remove_fd (struct procinfo *);
+
+ DESCRIPTION
+
+ Remove the fd of the supplied procinfo from the list of fds used
+ for poll/select operations.
+ */
+
static void
remove_fd (pi)
struct procinfo *pi;
for (i = 0; i < num_poll_list; i++)
{
- if (poll_list[i].fd == pi->fd)
+ if (poll_list[i].fd == pi->ctl_fd)
{
if (i != num_poll_list - 1)
memcpy (poll_list + i, poll_list + i + 1,
else
poll_list = (struct pollfd *) xrealloc (poll_list,
num_poll_list
- * sizeof (struct pollfd));
+ * sizeof (struct pollfd));
return;
}
}
}
+/*
+
+ LOCAL FUNCTION
+
+ procfs_read_status - get procfs fd status
+
+ SYNOPSIS
+
+ static int procfs_read_status (pi) struct procinfo *pi;
+
+ DESCRIPTION
+
+ Given a pointer to a procinfo struct, get the status of
+ the status_fd in the appropriate way. Returns 0 on failure,
+ 1 on success.
+ */
+
+static int
+procfs_read_status (pi)
+ struct procinfo *pi;
+{
+#ifdef PROCFS_USE_READ_WRITE
+ if ((lseek (pi->status_fd, 0, SEEK_SET) < 0) ||
+ (read (pi->status_fd, (char *) &pi->prstatus,
+ sizeof (gdb_prstatus_t)) != sizeof (gdb_prstatus_t)))
+#else
+ if (ioctl (pi->status_fd, PIOCSTATUS, &pi->prstatus) < 0)
+#endif
+ return 0;
+ else
+ return 1;
+}
+
+/*
+
+ LOCAL FUNCTION
+
+ procfs_write_pcwstop - send a PCWSTOP to procfs fd
+
+ SYNOPSIS
+
+ static int procfs_write_pcwstop (pi) struct procinfo *pi;
+
+ DESCRIPTION
+
+ Given a pointer to a procinfo struct, send a PCWSTOP to
+ the ctl_fd in the appropriate way. Returns 0 on failure,
+ 1 on success.
+ */
+
+static int
+procfs_write_pcwstop (pi)
+ struct procinfo *pi;
+{
+#ifdef PROCFS_USE_READ_WRITE
+ long cmd = PCWSTOP;
+ if (write (pi->ctl_fd, (char *) &cmd, sizeof (long)) < 0)
+#else
+ if (ioctl (pi->ctl_fd, PIOCWSTOP, &pi->prstatus) < 0)
+#endif
+ return 0;
+ else
+ return 1;
+}
+
+/*
+
+ LOCAL FUNCTION
+
+ procfs_write_pckill - send a kill to procfs fd
+
+ SYNOPSIS
+
+ static void procfs_write_pckill (pi) struct procinfo *pi;
+
+ DESCRIPTION
+
+ Given a pointer to a procinfo struct, send a kill to
+ the ctl_fd in the appropriate way. Returns 0 on failure,
+ 1 on success.
+ */
+
+static void
+procfs_write_pckill (pi)
+ struct procinfo *pi;
+{
+#ifdef PROCFS_USE_READ_WRITE
+ struct proc_ctl pctl;
+ pctl.cmd = PCKILL;
+ pctl.data = SIGKILL;
+ write (pi->ctl_fd, &pctl, sizeof (struct proc_ctl));
+#else
+ int signo = SIGKILL;
+ ioctl (pi->ctl_fd, PIOCKILL, &signo);
+#endif
+}
+
static struct procinfo *
wait_fd ()
{
- struct procinfo *pi;
+ struct procinfo *pi, *next_pi;
+#ifndef LOSING_POLL
int num_fds;
int i;
+#endif
- set_sigint_trap (); /* Causes SIGINT to be passed on to the
- attached process. */
+ set_sigint_trap (); /* Causes SIGINT to be passed on to the
+ attached process. */
set_sigio_trap ();
+wait_again:
#ifndef LOSING_POLL
- num_fds = poll (poll_list, num_poll_list, -1);
-#else
+ while (1)
+ {
+ num_fds = poll (poll_list, num_poll_list, -1);
+ if (num_fds > 0)
+ break;
+ if (num_fds < 0 && errno == EINTR)
+ continue;
+ print_sys_errmsg ("poll failed", errno);
+ error ("Poll failed, returned %d", num_fds);
+ }
+#else /* LOSING_POLL */
pi = current_procinfo;
- while (ioctl (pi->fd, PIOCWSTOP, &pi->prstatus) < 0)
+ while (!procfs_write_pcwstop (pi))
{
if (errno == ENOENT)
{
else if (errno != EINTR)
{
print_sys_errmsg (pi->pathname, errno);
- error ("PIOCWSTOP failed");
+ error ("procfs_write_pcwstop failed");
}
}
pi->had_event = 1;
-#endif
-
+#endif /* LOSING_POLL */
+
clear_sigint_trap ();
clear_sigio_trap ();
#ifndef LOSING_POLL
- if (num_fds <= 0)
- {
- print_sys_errmsg ("poll failed\n", errno);
- error ("Poll failed, returned %d", num_fds);
- }
-
for (i = 0; i < num_poll_list && num_fds > 0; i++)
{
- if ((poll_list[i].revents & (POLLPRI|POLLERR|POLLHUP|POLLNVAL)) == 0)
+ if (0 == (poll_list[i].revents &
+ (POLLWRNORM | POLLPRI | POLLERR | POLLHUP | POLLNVAL)))
continue;
- for (pi = procinfo_list; pi; pi = pi->next)
+ for (pi = procinfo_list; pi; pi = next_pi)
{
- if (poll_list[i].fd == pi->fd)
+ next_pi = pi->next;
+ if (poll_list[i].fd == pi->ctl_fd)
{
- if (ioctl (pi->fd, PIOCSTATUS, &pi->prstatus) < 0)
- {
- print_sys_errmsg (pi->pathname, errno);
- error ("PIOCSTATUS failed");
- }
num_fds--;
+ if ((poll_list[i].revents & POLLHUP) != 0 ||
+ !procfs_read_status (pi))
+ { /* The LWP has apparently terminated. */
+ if (num_poll_list <= 1)
+ {
+ pi->prstatus.pr_flags = 0;
+ pi->had_event = 1;
+ break;
+ }
+ if (info_verbose)
+ printf_filtered ("LWP %d exited.\n",
+ (pi->pid >> 16) & 0xffff);
+ close_proc_file (pi);
+ i--; /* don't skip deleted entry */
+ if (num_fds != 0)
+ break; /* already another event to process */
+ else
+ goto wait_again; /* wait for another event */
+ }
pi->had_event = 1;
break;
}
/*
-LOCAL FUNCTION
+ LOCAL FUNCTION
+
+ lookupdesc -- translate a value to a summary desc string
- lookupdesc -- translate a value to a summary desc string
+ SYNOPSIS
-SYNOPSIS
+ static char *lookupdesc (struct trans *transp, unsigned int val);
- static char *lookupdesc (struct trans *transp, unsigned int val);
+ DESCRIPTION
-DESCRIPTION
-
- Given a pointer to a translation table and a value to be translated,
- lookup the desc string and return it.
+ Given a pointer to a translation table and a value to be translated,
+ lookup the desc string and return it.
*/
static char *
unsigned int val;
{
char *desc;
-
- for (desc = NULL; transp -> name != NULL; transp++)
+
+ for (desc = NULL; transp->name != NULL; transp++)
{
- if (transp -> value == val)
+ if (transp->value == val)
{
- desc = transp -> desc;
+ desc = transp->desc;
break;
}
}
/*
-LOCAL FUNCTION
+ LOCAL FUNCTION
+
+ lookupname -- translate a value to symbolic name
- lookupname -- translate a value to symbolic name
+ SYNOPSIS
-SYNOPSIS
+ static char *lookupname (struct trans *transp, unsigned int val,
+ char *prefix);
- static char *lookupname (struct trans *transp, unsigned int val,
- char *prefix);
+ DESCRIPTION
-DESCRIPTION
-
- Given a pointer to a translation table, a value to be translated,
- and a default prefix to return if the value can't be translated,
- match the value with one of the translation table entries and
- return a pointer to the symbolic name.
+ Given a pointer to a translation table, a value to be translated,
+ and a default prefix to return if the value can't be translated,
+ match the value with one of the translation table entries and
+ return a pointer to the symbolic name.
- If no match is found it just returns the value as a printable string,
- with the given prefix. The previous such value, if any, is freed
- at this time.
+ If no match is found it just returns the value as a printable string,
+ with the given prefix. The previous such value, if any, is freed
+ at this time.
*/
static char *
{
static char *locbuf;
char *name;
-
- for (name = NULL; transp -> name != NULL; transp++)
+
+ for (name = NULL; transp->name != NULL; transp++)
{
- if (transp -> value == val)
+ if (transp->value == val)
{
- name = transp -> name;
+ name = transp->name;
break;
}
}
struct sigcode *scp;
char *name = NULL;
static char locbuf[32];
-
- for (scp = siginfo_table; scp -> codename != NULL; scp++)
+
+ for (scp = siginfo_table; scp->codename != NULL; scp++)
{
- if ((scp -> signo == sip -> si_signo) &&
- (scp -> code == sip -> si_code))
+ if ((scp->signo == sip->si_signo) &&
+ (scp->code == sip->si_code))
{
- name = scp -> codename;
+ name = scp->codename;
break;
}
}
if (name == NULL)
{
- sprintf (locbuf, "sigcode %u", sip -> si_signo);
+ sprintf (locbuf, "sigcode %u", sip->si_signo);
name = locbuf;
}
return (name);
{
struct sigcode *scp;
char *desc = NULL;
-
- for (scp = siginfo_table; scp -> codename != NULL; scp++)
+
+ for (scp = siginfo_table; scp->codename != NULL; scp++)
{
- if ((scp -> signo == sip -> si_signo) &&
- (scp -> code == sip -> si_code))
+ if ((scp->signo == sip->si_signo) &&
+ (scp->code == sip->si_code))
{
- desc = scp -> desc;
+ desc = scp->desc;
break;
}
}
/*
-LOCAL FUNCTION
+ LOCAL FUNCTION
- syscallname - translate a system call number into a system call name
+ syscallname - translate a system call number into a system call name
-SYNOPSIS
+ SYNOPSIS
- char *syscallname (int syscallnum)
+ char *syscallname (int syscallnum)
-DESCRIPTION
+ DESCRIPTION
- Given a system call number, translate it into the printable name
- of a system call, or into "syscall <num>" if it is an unknown
- number.
+ Given a system call number, translate it into the printable name
+ of a system call, or into "syscall <num>" if it is an unknown
+ number.
*/
static char *
int syscallnum;
{
static char locbuf[32];
-
+
if (syscallnum >= 0 && syscallnum < MAX_SYSCALLS
&& syscall_table[syscallnum] != NULL)
return syscall_table[syscallnum];
/*
-LOCAL FUNCTION
+ LOCAL FUNCTION
- init_syscall_table - initialize syscall translation table
+ init_syscall_table - initialize syscall translation table
-SYNOPSIS
+ SYNOPSIS
- void init_syscall_table (void)
+ void init_syscall_table (void)
-DESCRIPTION
+ DESCRIPTION
- Dynamically initialize the translation table to convert system
- call numbers into printable system call names. Done once per
- gdb run, on initialization.
+ Dynamically initialize the translation table to convert system
+ call numbers into printable system call names. Done once per
+ gdb run, on initialization.
-NOTES
+ NOTES
- This is awfully ugly, but preprocessor tricks to make it prettier
- tend to be nonportable.
+ This is awfully ugly, but preprocessor tricks to make it prettier
+ tend to be nonportable.
*/
static void
#if defined (SYS_sys3b)
syscall_table[SYS_sys3b] = "sys3b";
#endif
+#if defined (SYS_sysi86)
+ syscall_table[SYS_sysi86] = "sysi86";
+#endif
#if defined (SYS_acct)
syscall_table[SYS_acct] = "acct";
#endif
#if defined (SYS_sproc)
syscall_table[SYS_sproc] = "sproc";
#endif
+#if defined (SYS_keyctl)
+ syscall_table[SYS_keyctl] = "keyctl";
+#endif
+#if defined (SYS_secsys)
+ syscall_table[SYS_secsys] = "secsys";
+#endif
+#if defined (SYS_filepriv)
+ syscall_table[SYS_filepriv] = "filepriv";
+#endif
+#if defined (SYS_procpriv)
+ syscall_table[SYS_procpriv] = "procpriv";
+#endif
+#if defined (SYS_devstat)
+ syscall_table[SYS_devstat] = "devstat";
+#endif
+#if defined (SYS_aclipc)
+ syscall_table[SYS_aclipc] = "aclipc";
+#endif
+#if defined (SYS_fdevstat)
+ syscall_table[SYS_fdevstat] = "fdevstat";
+#endif
+#if defined (SYS_flvlfile)
+ syscall_table[SYS_flvlfile] = "flvlfile";
+#endif
+#if defined (SYS_lvlfile)
+ syscall_table[SYS_lvlfile] = "lvlfile";
+#endif
+#if defined (SYS_lvlequal)
+ syscall_table[SYS_lvlequal] = "lvlequal";
+#endif
+#if defined (SYS_lvlproc)
+ syscall_table[SYS_lvlproc] = "lvlproc";
+#endif
+#if defined (SYS_lvlipc)
+ syscall_table[SYS_lvlipc] = "lvlipc";
+#endif
+#if defined (SYS_acl)
+ syscall_table[SYS_acl] = "acl";
+#endif
+#if defined (SYS_auditevt)
+ syscall_table[SYS_auditevt] = "auditevt";
+#endif
+#if defined (SYS_auditctl)
+ syscall_table[SYS_auditctl] = "auditctl";
+#endif
+#if defined (SYS_auditdmp)
+ syscall_table[SYS_auditdmp] = "auditdmp";
+#endif
+#if defined (SYS_auditlog)
+ syscall_table[SYS_auditlog] = "auditlog";
+#endif
+#if defined (SYS_auditbuf)
+ syscall_table[SYS_auditbuf] = "auditbuf";
+#endif
+#if defined (SYS_lvldom)
+ syscall_table[SYS_lvldom] = "lvldom";
+#endif
+#if defined (SYS_lvlvfs)
+ syscall_table[SYS_lvlvfs] = "lvlvfs";
+#endif
+#if defined (SYS_mkmld)
+ syscall_table[SYS_mkmld] = "mkmld";
+#endif
+#if defined (SYS_mldmode)
+ syscall_table[SYS_mldmode] = "mldmode";
+#endif
+#if defined (SYS_secadvise)
+ syscall_table[SYS_secadvise] = "secadvise";
+#endif
+#if defined (SYS_online)
+ syscall_table[SYS_online] = "online";
+#endif
+#if defined (SYS_setitimer)
+ syscall_table[SYS_setitimer] = "setitimer";
+#endif
+#if defined (SYS_getitimer)
+ syscall_table[SYS_getitimer] = "getitimer";
+#endif
+#if defined (SYS_gettimeofday)
+ syscall_table[SYS_gettimeofday] = "gettimeofday";
+#endif
+#if defined (SYS_settimeofday)
+ syscall_table[SYS_settimeofday] = "settimeofday";
+#endif
+#if defined (SYS_lwp_create)
+ syscall_table[SYS_lwp_create] = "_lwp_create";
+#endif
+#if defined (SYS_lwp_exit)
+ syscall_table[SYS_lwp_exit] = "_lwp_exit";
+#endif
+#if defined (SYS_lwp_wait)
+ syscall_table[SYS_lwp_wait] = "_lwp_wait";
+#endif
+#if defined (SYS_lwp_self)
+ syscall_table[SYS_lwp_self] = "_lwp_self";
+#endif
+#if defined (SYS_lwp_info)
+ syscall_table[SYS_lwp_info] = "_lwp_info";
+#endif
+#if defined (SYS_lwp_private)
+ syscall_table[SYS_lwp_private] = "_lwp_private";
+#endif
+#if defined (SYS_processor_bind)
+ syscall_table[SYS_processor_bind] = "processor_bind";
+#endif
+#if defined (SYS_processor_exbind)
+ syscall_table[SYS_processor_exbind] = "processor_exbind";
+#endif
+#if defined (SYS_prepblock)
+ syscall_table[SYS_prepblock] = "prepblock";
+#endif
+#if defined (SYS_block)
+ syscall_table[SYS_block] = "block";
+#endif
+#if defined (SYS_rdblock)
+ syscall_table[SYS_rdblock] = "rdblock";
+#endif
+#if defined (SYS_unblock)
+ syscall_table[SYS_unblock] = "unblock";
+#endif
+#if defined (SYS_cancelblock)
+ syscall_table[SYS_cancelblock] = "cancelblock";
+#endif
+#if defined (SYS_pread)
+ syscall_table[SYS_pread] = "pread";
+#endif
+#if defined (SYS_pwrite)
+ syscall_table[SYS_pwrite] = "pwrite";
+#endif
+#if defined (SYS_truncate)
+ syscall_table[SYS_truncate] = "truncate";
+#endif
+#if defined (SYS_ftruncate)
+ syscall_table[SYS_ftruncate] = "ftruncate";
+#endif
+#if defined (SYS_lwp_kill)
+ syscall_table[SYS_lwp_kill] = "_lwp_kill";
+#endif
+#if defined (SYS_sigwait)
+ syscall_table[SYS_sigwait] = "sigwait";
+#endif
+#if defined (SYS_fork1)
+ syscall_table[SYS_fork1] = "fork1";
+#endif
+#if defined (SYS_forkall)
+ syscall_table[SYS_forkall] = "forkall";
+#endif
+#if defined (SYS_modload)
+ syscall_table[SYS_modload] = "modload";
+#endif
+#if defined (SYS_moduload)
+ syscall_table[SYS_moduload] = "moduload";
+#endif
+#if defined (SYS_modpath)
+ syscall_table[SYS_modpath] = "modpath";
+#endif
+#if defined (SYS_modstat)
+ syscall_table[SYS_modstat] = "modstat";
+#endif
+#if defined (SYS_modadm)
+ syscall_table[SYS_modadm] = "modadm";
+#endif
+#if defined (SYS_getksym)
+ syscall_table[SYS_getksym] = "getksym";
+#endif
+#if defined (SYS_lwp_suspend)
+ syscall_table[SYS_lwp_suspend] = "_lwp_suspend";
+#endif
+#if defined (SYS_lwp_continue)
+ syscall_table[SYS_lwp_continue] = "_lwp_continue";
+#endif
+#if defined (SYS_priocntllst)
+ syscall_table[SYS_priocntllst] = "priocntllst";
+#endif
+#if defined (SYS_sleep)
+ syscall_table[SYS_sleep] = "sleep";
+#endif
+#if defined (SYS_lwp_sema_wait)
+ syscall_table[SYS_lwp_sema_wait] = "_lwp_sema_wait";
+#endif
+#if defined (SYS_lwp_sema_post)
+ syscall_table[SYS_lwp_sema_post] = "_lwp_sema_post";
+#endif
+#if defined (SYS_lwp_sema_trywait)
+ syscall_table[SYS_lwp_sema_trywait] = "lwp_sema_trywait";
+#endif
+#if defined(SYS_fstatvfs64)
+ syscall_table[SYS_fstatvfs64] = "fstatvfs64";
+#endif
+#if defined(SYS_statvfs64)
+ syscall_table[SYS_statvfs64] = "statvfs64";
+#endif
+#if defined(SYS_ftruncate64)
+ syscall_table[SYS_ftruncate64] = "ftruncate64";
+#endif
+#if defined(SYS_truncate64)
+ syscall_table[SYS_truncate64] = "truncate64";
+#endif
+#if defined(SYS_getrlimit64)
+ syscall_table[SYS_getrlimit64] = "getrlimit64";
+#endif
+#if defined(SYS_setrlimit64)
+ syscall_table[SYS_setrlimit64] = "setrlimit64";
+#endif
+#if defined(SYS_lseek64)
+ syscall_table[SYS_lseek64] = "lseek64";
+#endif
+#if defined(SYS_mmap64)
+ syscall_table[SYS_mmap64] = "mmap64";
+#endif
+#if defined(SYS_pread64)
+ syscall_table[SYS_pread64] = "pread64";
+#endif
+#if defined(SYS_creat64)
+ syscall_table[SYS_creat64] = "creat64";
+#endif
+#if defined(SYS_dshmsys)
+ syscall_table[SYS_dshmsys] = "dshmsys";
+#endif
+#if defined(SYS_invlpg)
+ syscall_table[SYS_invlpg] = "invlpg";
+#endif
+#if defined(SYS_cg_ids)
+ syscall_table[SYS_cg_ids] = "cg_ids";
+#endif
+#if defined(SYS_cg_processors)
+ syscall_table[SYS_cg_processors] = "cg_processors";
+#endif
+#if defined(SYS_cg_info)
+ syscall_table[SYS_cg_info] = "cg_info";
+#endif
+#if defined(SYS_cg_bind)
+ syscall_table[SYS_cg_bind] = "cg_bind";
+#endif
+#if defined(SYS_cg_current)
+ syscall_table[SYS_cg_current] = "cg_current";
+#endif
+#if defined(SYS_cg_memloc)
+ syscall_table[SYS_cg_memloc] = "cg_memloc";
+#endif
}
/*
-LOCAL FUNCTION
+ LOCAL FUNCTION
- procfs_kill_inferior - kill any currently inferior
+ procfs_kill_inferior - kill any current inferior
-SYNOPSIS
+ SYNOPSIS
- void procfs_kill_inferior (void)
+ void procfs_kill_inferior (void)
-DESCRIPTION
+ DESCRIPTION
- Kill any current inferior.
+ Kill any current inferior.
-NOTES
+ NOTES
- Kills even attached inferiors. Presumably the user has already
- been prompted that the inferior is an attached one rather than
- one started by gdb. (FIXME?)
+ Kills even attached inferiors. Presumably the user has already
+ been prompted that the inferior is an attached one rather than
+ one started by gdb. (FIXME?)
-*/
+ */
static void
procfs_kill_inferior ()
/*
-LOCAL FUNCTION
+ LOCAL FUNCTION
- unconditionally_kill_inferior - terminate the inferior
+ unconditionally_kill_inferior - terminate the inferior
-SYNOPSIS
+ SYNOPSIS
- static void unconditionally_kill_inferior (struct procinfo *)
+ static void unconditionally_kill_inferior (struct procinfo *)
-DESCRIPTION
+ DESCRIPTION
- Kill the specified inferior.
+ Kill the specified inferior.
-NOTE
+ NOTE
- A possibly useful enhancement would be to first try sending
- the inferior a terminate signal, politely asking it to commit
- suicide, before we murder it (we could call that
- politely_kill_inferior()).
+ A possibly useful enhancement would be to first try sending
+ the inferior a terminate signal, politely asking it to commit
+ suicide, before we murder it (we could call that
+ politely_kill_inferior()).
-*/
+ */
static void
unconditionally_kill_inferior (pi)
struct procinfo *pi;
{
- int signo;
int ppid;
-
- ppid = pi->prstatus.pr_ppid;
- signo = SIGKILL;
+ ppid = pi->prstatus.pr_ppid;
#ifdef PROCFS_NEED_CLEAR_CURSIG_FOR_KILL
/* Alpha OSF/1-3.x procfs needs a clear of the current signal
before the PIOCKILL, otherwise it might generate a corrupted core
file for the inferior. */
- ioctl (pi->fd, PIOCSSIG, NULL);
+ ioctl (pi->ctl_fd, PIOCSSIG, NULL);
#endif
#ifdef PROCFS_NEED_PIOCSSIG_FOR_KILL
/* Alpha OSF/1-2.x procfs needs a PIOCSSIG call with a SIGKILL signal
struct siginfo newsiginfo;
memset ((char *) &newsiginfo, 0, sizeof (newsiginfo));
- newsiginfo.si_signo = signo;
+ newsiginfo.si_signo = SIGKILL;
newsiginfo.si_code = 0;
newsiginfo.si_errno = 0;
newsiginfo.si_pid = getpid ();
newsiginfo.si_uid = getuid ();
- ioctl (pi->fd, PIOCSSIG, &newsiginfo);
+ ioctl (pi->ctl_fd, PIOCSSIG, &newsiginfo);
}
-#else
- ioctl (pi->fd, PIOCKILL, &signo);
-#endif
+#else /* PROCFS_NEED_PIOCSSIG_FOR_KILL */
+ procfs_write_pckill (pi);
+#endif /* PROCFS_NEED_PIOCSSIG_FOR_KILL */
close_proc_file (pi);
/* Only wait() for our direct children. Our grandchildren zombies are killed
by the death of their parents. */
- if (ppid == getpid())
+ if (ppid == getpid ())
wait ((int *) 0);
}
/*
-LOCAL FUNCTION
+ LOCAL FUNCTION
- procfs_xfer_memory -- copy data to or from inferior memory space
+ procfs_xfer_memory -- copy data to or from inferior memory space
-SYNOPSIS
+ SYNOPSIS
- int procfs_xfer_memory (CORE_ADDR memaddr, char *myaddr, int len,
- int dowrite, struct target_ops target)
+ int procfs_xfer_memory (CORE_ADDR memaddr, char *myaddr, int len,
+ int dowrite, struct target_ops target)
-DESCRIPTION
+ DESCRIPTION
- Copy LEN bytes to/from inferior's memory starting at MEMADDR
- from/to debugger memory starting at MYADDR. Copy from inferior
- if DOWRITE is zero or to inferior if DOWRITE is nonzero.
-
- Returns the length copied, which is either the LEN argument or
- zero. This xfer function does not do partial moves, since procfs_ops
- doesn't allow memory operations to cross below us in the target stack
- anyway.
+ Copy LEN bytes to/from inferior's memory starting at MEMADDR
+ from/to debugger memory starting at MYADDR. Copy from inferior
+ if DOWRITE is zero or to inferior if DOWRITE is nonzero.
-NOTES
+ Returns the length copied, which is either the LEN argument or
+ zero. This xfer function does not do partial moves, since procfs_ops
+ doesn't allow memory operations to cross below us in the target stack
+ anyway.
- The /proc interface makes this an almost trivial task.
+ NOTES
+
+ The /proc interface makes this an almost trivial task.
*/
static int
char *myaddr;
int len;
int dowrite;
- struct target_ops *target; /* ignored */
+ struct target_ops *target; /* ignored */
{
int nbytes = 0;
struct procinfo *pi;
pi = current_procinfo;
- if (lseek(pi->fd, (off_t) memaddr, 0) == (off_t) memaddr)
+ if (lseek (pi->as_fd, (off_t) memaddr, SEEK_SET) == (off_t) memaddr)
{
if (dowrite)
{
- nbytes = write (pi->fd, myaddr, len);
+ nbytes = write (pi->as_fd, myaddr, len);
}
else
{
- nbytes = read (pi->fd, myaddr, len);
+ nbytes = read (pi->as_fd, myaddr, len);
}
if (nbytes < 0)
{
/*
-LOCAL FUNCTION
+ LOCAL FUNCTION
- procfs_store_registers -- copy register values back to inferior
+ procfs_store_registers -- copy register values back to inferior
-SYNOPSIS
+ SYNOPSIS
- void procfs_store_registers (int regno)
+ void procfs_store_registers (int regno)
-DESCRIPTION
+ DESCRIPTION
- Store our current register values back into the inferior. If
- REGNO is -1 then store all the register, otherwise store just
- the value specified by REGNO.
+ Store our current register values back into the inferior. If
+ REGNO is -1 then store all the register, otherwise store just
+ the value specified by REGNO.
-NOTES
+ NOTES
- If we are storing only a single register, we first have to get all
- the current values from the process, overwrite the desired register
- in the gregset with the one we want from gdb's registers, and then
- send the whole set back to the process. For writing all the
- registers, all we have to do is generate the gregset and send it to
- the process.
+ If we are storing only a single register, we first have to get all
+ the current values from the process, overwrite the desired register
+ in the gregset with the one we want from gdb's registers, and then
+ send the whole set back to the process. For writing all the
+ registers, all we have to do is generate the gregset and send it to
+ the process.
- Also note that the process has to be stopped on an event of interest
- for this to work, which basically means that it has to have been
- run under the control of one of the other /proc ioctl calls and not
- ptrace. Since we don't use ptrace anyway, we don't worry about this
- fine point, but it is worth noting for future reference.
+ Also note that the process has to be stopped on an event of interest
+ for this to work, which basically means that it has to have been
+ run under the control of one of the other /proc ioctl calls and not
+ ptrace. Since we don't use ptrace anyway, we don't worry about this
+ fine point, but it is worth noting for future reference.
- Gdb is confused about what this function is supposed to return.
- Some versions return a value, others return nothing. Some are
- declared to return a value and actually return nothing. Gdb ignores
- anything returned. (FIXME)
+ Gdb is confused about what this function is supposed to return.
+ Some versions return a value, others return nothing. Some are
+ declared to return a value and actually return nothing. Gdb ignores
+ anything returned. (FIXME)
*/
int regno;
{
struct procinfo *pi;
+#ifdef PROCFS_USE_READ_WRITE
+ struct greg_ctl greg;
+ struct fpreg_ctl fpreg;
+#endif
pi = current_procinfo;
+#ifdef PROCFS_USE_READ_WRITE
if (regno != -1)
{
- ioctl (pi->fd, PIOCGREG, &pi->gregset);
+ procfs_read_status (pi);
+ memcpy ((char *) &greg.gregset,
+ (char *) &pi->prstatus.pr_lwp.pr_context.uc_mcontext.gregs,
+ sizeof (gdb_gregset_t));
}
- fill_gregset (&pi->gregset, regno);
- ioctl (pi->fd, PIOCSREG, &pi->gregset);
+ fill_gregset (&greg.gregset, regno);
+ greg.cmd = PCSREG;
+ write (pi->ctl_fd, &greg, sizeof (greg));
+#else /* PROCFS_USE_READ_WRITE */
+ if (regno != -1)
+ {
+ ioctl (pi->ctl_fd, PIOCGREG, &pi->gregset.gregset);
+ }
+ fill_gregset (&pi->gregset.gregset, regno);
+ ioctl (pi->ctl_fd, PIOCSREG, &pi->gregset.gregset);
+#endif /* PROCFS_USE_READ_WRITE */
#if defined (FP0_REGNUM)
target has floating point hardware. Since we ignore the returned value,
we'll never know whether it worked or not anyway. */
+#ifdef PROCFS_USE_READ_WRITE
if (regno != -1)
{
- ioctl (pi->fd, PIOCGFPREG, &pi->fpregset);
+ procfs_read_status (pi);
+ memcpy ((char *) &fpreg.fpregset,
+ (char *) &pi->prstatus.pr_lwp.pr_context.uc_mcontext.fpregs,
+ sizeof (gdb_fpregset_t));
}
- fill_fpregset (&pi->fpregset, regno);
- ioctl (pi->fd, PIOCSFPREG, &pi->fpregset);
+ fill_fpregset (&fpreg.fpregset, regno);
+ fpreg.cmd = PCSFPREG;
+ write (pi->ctl_fd, &fpreg, sizeof (fpreg));
+#else /* PROCFS_USE_READ_WRITE */
+ if (regno != -1)
+ {
+ ioctl (pi->ctl_fd, PIOCGFPREG, &pi->fpregset.fpregset);
+ }
+ fill_fpregset (&pi->fpregset.fpregset, regno);
+ ioctl (pi->ctl_fd, PIOCSFPREG, &pi->fpregset.fpregset);
+#endif /* PROCFS_USE_READ_WRITE */
-#endif /* FP0_REGNUM */
+#endif /* FP0_REGNUM */
}
/*
-LOCAL FUNCTION
+ LOCAL FUNCTION
- create_procinfo - initialize access to a /proc entry
+ init_procinfo - setup a procinfo struct and connect it to a process
-SYNOPSIS
+ SYNOPSIS
- struct procinfo * create_procinfo (int pid)
+ struct procinfo * init_procinfo (int pid)
-DESCRIPTION
+ DESCRIPTION
- Allocate a procinfo structure, open the /proc file and then set up the
- set of signals and faults that are to be traced. Returns a pointer to
- the new procinfo structure.
+ Allocate a procinfo structure, open the /proc file and then set up the
+ set of signals and faults that are to be traced. Returns a pointer to
+ the new procinfo structure.
-NOTES
+ NOTES
- If proc_init_failed ever gets called, control returns to the command
- processing loop via the standard error handling code.
+ If proc_init_failed ever gets called, control returns to the command
+ processing loop via the standard error handling code.
*/
static struct procinfo *
-create_procinfo (pid)
+init_procinfo (pid, kill)
int pid;
+ int kill;
{
- struct procinfo *pi;
-
- pi = find_procinfo (pid, 1);
- if (pi != NULL)
- return pi; /* All done! It already exists */
-
- pi = (struct procinfo *) xmalloc (sizeof (struct procinfo));
+ struct procinfo *pi = (struct procinfo *)
+ xmalloc (sizeof (struct procinfo));
+#ifdef UNIXWARE
+ struct sig_ctl sctl;
+#endif /* UNIXWARE */
- if (!open_proc_file (pid, pi, O_RDWR))
- proc_init_failed (pi, "can't open process file");
+ memset ((char *) pi, 0, sizeof (*pi));
+ if (!open_proc_file (pid, pi, O_RDWR, 1))
+ proc_init_failed (pi, "can't open process file", kill);
/* open_proc_file may modify pid. */
- pid = pi -> pid;
+ pid = pi->pid;
/* Add new process to process info list */
add_fd (pi); /* Add to list for poll/select */
- pi->num_syscall_handlers = 0;
- pi->syscall_handlers = NULL;
+ /* Remember some things about the inferior that we will, or might, change
+ so that we can restore them when we detach. */
+#ifdef UNIXWARE
+ memcpy ((char *) &pi->saved_trace.sigset,
+ (char *) &pi->prstatus.pr_sigtrace, sizeof (sigset_t));
+ memcpy ((char *) &pi->saved_fltset.fltset,
+ (char *) &pi->prstatus.pr_flttrace, sizeof (fltset_t));
+ memcpy ((char *) &pi->saved_entryset.sysset,
+ (char *) &pi->prstatus.pr_sysentry, sizeof (sysset_t));
+ memcpy ((char *) &pi->saved_exitset.sysset,
+ (char *) &pi->prstatus.pr_sysexit, sizeof (sysset_t));
+
+ /* Set up trace and fault sets, as gdb expects them. */
+
+ prfillset (&sctl.sigset);
+ notice_signals (pi, &sctl);
+#else /* ! UNIXWARE */
+ ioctl (pi->ctl_fd, PIOCGTRACE, &pi->saved_trace.sigset);
+ ioctl (pi->ctl_fd, PIOCGHOLD, &pi->saved_sighold.sigset);
+ ioctl (pi->ctl_fd, PIOCGFAULT, &pi->saved_fltset.fltset);
+ ioctl (pi->ctl_fd, PIOCGENTRY, &pi->saved_entryset.sysset);
+ ioctl (pi->ctl_fd, PIOCGEXIT, &pi->saved_exitset.sysset);
+
+ /* Set up trace and fault sets, as gdb expects them. */
+
memset ((char *) &pi->prrun, 0, sizeof (pi->prrun));
prfillset (&pi->prrun.pr_trace);
procfs_notice_signals (pid);
- prfillset (&pi->prrun.pr_fault);
- prdelset (&pi->prrun.pr_fault, FLTPAGE);
+#endif /* UNIXWARE */
-#ifdef PROCFS_DONT_TRACE_FAULTS
- premptyset (&pi->prrun.pr_fault);
+ if (!procfs_read_status (pi))
+ proc_init_failed (pi, "procfs_read_status failed", kill);
+
+ return pi;
+}
+
+/*
+
+ LOCAL FUNCTION
+
+ create_procinfo - initialize access to a /proc entry
+
+ SYNOPSIS
+
+ struct procinfo * create_procinfo (int pid)
+
+ DESCRIPTION
+
+ Allocate a procinfo structure, open the /proc file and then set up the
+ set of signals and faults that are to be traced. Returns a pointer to
+ the new procinfo structure.
+
+ NOTES
+
+ If proc_init_failed ever gets called, control returns to the command
+ processing loop via the standard error handling code.
+
+ */
+
+static struct procinfo *
+create_procinfo (pid)
+ int pid;
+{
+ struct procinfo *pi;
+#ifdef PROCFS_USE_READ_WRITE
+ struct flt_ctl fctl;
#endif
- if (ioctl (pi->fd, PIOCSTATUS, &pi->prstatus) < 0)
- proc_init_failed (pi, "PIOCSTATUS failed");
+ pi = find_procinfo (pid, 1);
+ if (pi != NULL)
+ return pi; /* All done! It already exists */
+
+ pi = init_procinfo (pid, 1);
+#ifndef UNIXWARE
/* A bug in Solaris (2.5 at least) causes PIOCWSTOP to hang on LWPs that are
already stopped, even if they all have PR_ASYNC set. */
-
if (!(pi->prstatus.pr_flags & PR_STOPPED))
- if (ioctl (pi->fd, PIOCWSTOP, &pi->prstatus) < 0)
- proc_init_failed (pi, "PIOCWSTOP failed");
+#endif
+ if (!procfs_write_pcwstop (pi))
+ proc_init_failed (pi, "procfs_write_pcwstop failed", 1);
- if (ioctl (pi->fd, PIOCSFAULT, &pi->prrun.pr_fault) < 0)
- proc_init_failed (pi, "PIOCSFAULT failed");
+#ifdef PROCFS_USE_READ_WRITE
+ fctl.cmd = PCSFAULT;
+ prfillset (&fctl.fltset);
+ prdelset (&fctl.fltset, FLTPAGE);
+
+ if (write (pi->ctl_fd, (char *) &fctl, sizeof (struct flt_ctl)) < 0)
+ proc_init_failed (pi, "PCSFAULT failed", 1);
+#else
+ prfillset (&pi->prrun.pr_fault);
+ prdelset (&pi->prrun.pr_fault, FLTPAGE);
+#ifdef PROCFS_DONT_TRACE_FAULTS
+ premptyset (&pi->prrun.pr_fault);
+#endif
+ if (ioctl (pi->ctl_fd, PIOCSFAULT, &pi->prrun.pr_fault) < 0)
+ proc_init_failed (pi, "PIOCSFAULT failed", 1);
+#endif
return pi;
}
/*
-LOCAL FUNCTION
+ LOCAL FUNCTION
- procfs_exit_handler - handle entry into the _exit syscall
+ procfs_exit_handler - handle entry into the _exit syscall
-SYNOPSIS
+ SYNOPSIS
- int procfs_exit_handler (pi, syscall_num, why, rtnvalp, statvalp)
+ int procfs_exit_handler (pi, syscall_num, why, rtnvalp, statvalp)
-DESCRIPTION
+ DESCRIPTION
- This routine is called when an inferior process enters the _exit()
- system call. It continues the process, and then collects the exit
- status and pid which are returned in *statvalp and *rtnvalp. After
- that it returns non-zero to indicate that procfs_wait should wake up.
+ This routine is called when an inferior process enters the _exit()
+ system call. It continues the process, and then collects the exit
+ status and pid which are returned in *statvalp and *rtnvalp. After
+ that it returns non-zero to indicate that procfs_wait should wake up.
-NOTES
- There is probably a better way to do this.
+ NOTES
+ There is probably a better way to do this.
*/
int *rtnvalp;
int *statvalp;
{
+ struct procinfo *temp_pi, *next_pi;
+#if defined (UNIXWARE) || defined (PROCFS_USE_READ_WRITE)
+ struct proc_ctl pctl;
+#endif
+
+#ifdef UNIXWARE
+ pctl.cmd = PCRUN;
+ pctl.data = PRCFAULT;
+#else
pi->prrun.pr_flags = PRCFAULT;
+#endif
- if (ioctl (pi->fd, PIOCRUN, &pi->prrun) != 0)
+#ifdef PROCFS_USE_READ_WRITE
+ if (write (pi->ctl_fd, (char *) &pctl, sizeof (struct proc_ctl)) < 0)
+#else
+ if (ioctl (pi->ctl_fd, PIOCRUN, &pi->prrun) != 0)
+#endif
perror_with_name (pi->pathname);
- *rtnvalp = wait (statvalp);
- if (*rtnvalp >= 0)
- *rtnvalp = pi->pid;
+ if (attach_flag)
+ {
+ /* Claim it exited (don't call wait). */
+ if (info_verbose)
+ printf_filtered ("(attached process has exited)\n");
+ *statvalp = 0;
+ *rtnvalp = inferior_pid;
+ }
+ else
+ {
+ *rtnvalp = wait (statvalp);
+ if (*rtnvalp >= 0)
+ *rtnvalp = pi->pid;
+ }
+ /* Close ALL open proc file handles,
+ except the one that called SYS_exit. */
+ for (temp_pi = procinfo_list; temp_pi; temp_pi = next_pi)
+ {
+ next_pi = temp_pi->next;
+ if (temp_pi == pi)
+ continue; /* Handled below */
+ close_proc_file (temp_pi);
+ }
return 1;
}
/*
-LOCAL FUNCTION
+ LOCAL FUNCTION
- procfs_exec_handler - handle exit from the exec family of syscalls
+ procfs_exec_handler - handle exit from the exec family of syscalls
-SYNOPSIS
+ SYNOPSIS
- int procfs_exec_handler (pi, syscall_num, why, rtnvalp, statvalp)
+ int procfs_exec_handler (pi, syscall_num, why, rtnvalp, statvalp)
-DESCRIPTION
+ DESCRIPTION
- This routine is called when an inferior process is about to finish any
- of the exec() family of system calls. It pretends that we got a
- SIGTRAP (for compatibility with ptrace behavior), and returns non-zero
- to tell procfs_wait to wake up.
+ This routine is called when an inferior process is about to finish any
+ of the exec() family of system calls. It pretends that we got a
+ SIGTRAP (for compatibility with ptrace behavior), and returns non-zero
+ to tell procfs_wait to wake up.
-NOTES
- This need for compatibility with ptrace is questionable. In the
- future, it shouldn't be necessary.
+ NOTES
+ This need for compatibility with ptrace is questionable. In the
+ future, it shouldn't be necessary.
*/
return 1;
}
-#ifdef SYS_sproc /* IRIX lwp creation system call */
+#if defined(SYS_sproc) && !defined(UNIXWARE)
+/* IRIX lwp creation system call */
/*
-LOCAL FUNCTION
+ LOCAL FUNCTION
- procfs_sproc_handler - handle exit from the sproc syscall
+ procfs_sproc_handler - handle exit from the sproc syscall
-SYNOPSIS
+ SYNOPSIS
- int procfs_sproc_handler (pi, syscall_num, why, rtnvalp, statvalp)
+ int procfs_sproc_handler (pi, syscall_num, why, rtnvalp, statvalp)
-DESCRIPTION
+ DESCRIPTION
- This routine is called when an inferior process is about to finish an
- sproc() system call. This is the system call that IRIX uses to create
- a lightweight process. When the target process gets this event, we can
- look at rval1 to find the new child processes ID, and create a new
- procinfo struct from that.
+ This routine is called when an inferior process is about to finish an
+ sproc() system call. This is the system call that IRIX uses to create
+ a lightweight process. When the target process gets this event, we can
+ look at rval1 to find the new child processes ID, and create a new
+ procinfo struct from that.
- After that, it pretends that we got a SIGTRAP, and returns non-zero
- to tell procfs_wait to wake up. Subsequently, wait_for_inferior gets
- woken up, sees the new process and continues it.
+ After that, it pretends that we got a SIGTRAP, and returns non-zero
+ to tell procfs_wait to wake up. Subsequently, wait_for_inferior gets
+ woken up, sees the new process and continues it.
-NOTES
- We actually never see the child exiting from sproc because we will
- shortly stop the child with PIOCSTOP, which is then registered as the
- event of interest.
+ NOTES
+ We actually never see the child exiting from sproc because we will
+ shortly stop the child with PIOCSTOP, which is then registered as the
+ event of interest.
*/
static int
pi->prrun.pr_flags &= PRSTEP;
pi->prrun.pr_flags |= PRCFAULT;
- if (ioctl (pi->fd, PIOCRUN, &pi->prrun) != 0)
+ if (ioctl (pi->ctl_fd, PIOCRUN, &pi->prrun) != 0)
perror_with_name (pi->pathname);
return 0;
/*
-LOCAL FUNCTION
+ LOCAL FUNCTION
- procfs_fork_handler - handle exit from the fork syscall
+ procfs_fork_handler - handle exit from the fork syscall
-SYNOPSIS
+ SYNOPSIS
- int procfs_fork_handler (pi, syscall_num, why, rtnvalp, statvalp)
+ int procfs_fork_handler (pi, syscall_num, why, rtnvalp, statvalp)
-DESCRIPTION
+ DESCRIPTION
- This routine is called when an inferior process is about to finish a
- fork() system call. We will open up the new process, and then close
- it, which releases it from the clutches of the debugger.
+ This routine is called when an inferior process is about to finish a
+ fork() system call. We will open up the new process, and then close
+ it, which releases it from the clutches of the debugger.
- After that, we continue the target process as though nothing had
- happened.
+ After that, we continue the target process as though nothing had
+ happened.
-NOTES
- This is necessary for IRIX because we have to set PR_FORK in order
- to catch the creation of lwps (via sproc()). When an actual fork
- occurs, it becomes necessary to reset the forks debugger flags and
- continue it because we can't hack multiple processes yet.
+ NOTES
+ This is necessary for IRIX because we have to set PR_FORK in order
+ to catch the creation of lwps (via sproc()). When an actual fork
+ occurs, it becomes necessary to reset the forks debugger flags and
+ continue it because we can't hack multiple processes yet.
*/
static int
if (pitemp)
close_proc_file (pitemp);
- if (ioctl (pi->fd, PIOCRUN, &pi->prrun) != 0)
+ if (ioctl (pi->ctl_fd, PIOCRUN, &pi->prrun) != 0)
perror_with_name (pi->pathname);
return 0;
}
-#endif /* SYS_sproc */
+#endif /* SYS_sproc && !UNIXWARE */
/*
-LOCAL FUNCTION
-
- procfs_init_inferior - initialize target vector and access to a
- /proc entry
+ LOCAL FUNCTION
-SYNOPSIS
+ procfs_set_inferior_syscall_traps - setup the syscall traps
- int procfs_init_inferior (int pid)
+ SYNOPSIS
-DESCRIPTION
+ void procfs_set_inferior_syscall_traps (struct procinfo *pip)
- When gdb starts an inferior, this function is called in the parent
- process immediately after the fork. It waits for the child to stop
- on the return from the exec system call (the child itself takes care
- of ensuring that this is set up), then sets up the set of signals
- and faults that are to be traced. Returns the pid, which may have had
- the thread-id added to it.
+ DESCRIPTION
-NOTES
-
- If proc_init_failed ever gets called, control returns to the command
- processing loop via the standard error handling code.
+ Called for each "procinfo" (process, thread, or LWP) in the
+ inferior, to register for notification of and handlers for
+ syscall traps in the inferior.
*/
-static int
-procfs_init_inferior (pid)
- int pid;
+static void
+procfs_set_inferior_syscall_traps (pip)
+ struct procinfo *pip;
{
- struct procinfo *pip;
-
- push_target (&procfs_ops);
-
- pip = create_procinfo (pid);
-
procfs_set_syscall_trap (pip, SYS_exit, PROCFS_SYSCALL_ENTRY,
procfs_exit_handler);
procfs_set_syscall_trap (pip, SYS_execve, PROCFS_SYSCALL_EXIT,
procfs_exec_handler);
#endif
-#endif /* PRFS_STOPEXEC */
+#endif /* PRFS_STOPEXEC */
/* Setup traps on exit from sproc() */
that we also have to trap on fork and vfork in order to disable all tracing
in the targets child processes. */
- modify_inherit_on_fork_flag (pip->fd, 1);
+ modify_inherit_on_fork_flag (pip->ctl_fd, 1);
#endif
#ifdef SYS_lwp_create
procfs_set_syscall_trap (pip, SYS_lwp_create, PROCFS_SYSCALL_EXIT,
procfs_lwp_creation_handler);
#endif
+}
+
+/*
+
+ LOCAL FUNCTION
+
+ procfs_init_inferior - initialize target vector and access to a
+ /proc entry
+
+ SYNOPSIS
+
+ void procfs_init_inferior (int pid)
+
+ DESCRIPTION
+
+ When gdb starts an inferior, this function is called in the parent
+ process immediately after the fork. It waits for the child to stop
+ on the return from the exec system call (the child itself takes care
+ of ensuring that this is set up), then sets up the set of signals
+ and faults that are to be traced. Returns the pid, which may have had
+ the thread-id added to it.
+
+ NOTES
+
+ If proc_init_failed ever gets called, control returns to the command
+ processing loop via the standard error handling code.
+
+ */
+
+static void
+procfs_init_inferior (pid)
+ int pid;
+{
+ struct procinfo *pip;
+
+ push_target (&procfs_ops);
+
+ pip = create_procinfo (pid);
+
+ procfs_set_inferior_syscall_traps (pip);
/* create_procinfo may change the pid, so we have to update inferior_pid
here before calling other gdb routines that need the right pid. */
- pid = pip -> pid;
+ pid = pip->pid;
inferior_pid = pid;
- add_thread (pip -> pid); /* Setup initial thread */
+ add_thread (pip->pid); /* Setup initial thread */
#ifdef START_INFERIOR_TRAPS_EXPECTED
startup_inferior (START_INFERIOR_TRAPS_EXPECTED);
/* One trap to exec the shell, one to exec the program being debugged. */
startup_inferior (2);
#endif
-
- return pid;
}
/*
-GLOBAL FUNCTION
+ GLOBAL FUNCTION
- procfs_notice_signals
+ procfs_notice_signals
-SYNOPSIS
+ SYNOPSIS
- static void procfs_notice_signals (int pid);
+ static void procfs_notice_signals (int pid);
-DESCRIPTION
+ DESCRIPTION
- When the user changes the state of gdb's signal handling via the
- "handle" command, this function gets called to see if any change
- in the /proc interface is required. It is also called internally
- by other /proc interface functions to initialize the state of
- the traced signal set.
+ When the user changes the state of gdb's signal handling via the
+ "handle" command, this function gets called to see if any change
+ in the /proc interface is required. It is also called internally
+ by other /proc interface functions to initialize the state of
+ the traced signal set.
- One thing it does is that signals for which the state is "nostop",
- "noprint", and "pass", have their trace bits reset in the pr_trace
- field, so that they are no longer traced. This allows them to be
- delivered directly to the inferior without the debugger ever being
- involved.
+ One thing it does is that signals for which the state is "nostop",
+ "noprint", and "pass", have their trace bits reset in the pr_trace
+ field, so that they are no longer traced. This allows them to be
+ delivered directly to the inferior without the debugger ever being
+ involved.
*/
static void
-procfs_notice_signals (pid)
- int pid;
+procfs_notice_signals (pid)
+ int pid;
+{
+ struct procinfo *pi;
+ struct sig_ctl sctl;
+
+ pi = find_procinfo (pid, 0);
+
+#ifndef HAVE_PRRUN_T
+ premptyset (&sctl.sigset);
+#else
+ sctl.sigset = pi->prrun.pr_trace;
+#endif
+
+ notice_signals (pi, &sctl);
+
+#ifdef HAVE_PRRUN_T
+ pi->prrun.pr_trace = sctl.sigset;
+#endif
+}
+
+static void
+notice_signals (pi, sctl)
+ struct procinfo *pi;
+ struct sig_ctl *sctl;
{
int signo;
- struct procinfo *pi;
-
- pi = find_procinfo (pid, 0);
for (signo = 0; signo < NSIG; signo++)
{
signal_print_state (target_signal_from_host (signo)) == 0 &&
signal_pass_state (target_signal_from_host (signo)) == 1)
{
- prdelset (&pi->prrun.pr_trace, signo);
+ prdelset (&sctl->sigset, signo);
}
else
{
- praddset (&pi->prrun.pr_trace, signo);
+ praddset (&sctl->sigset, signo);
}
}
- if (ioctl (pi->fd, PIOCSTRACE, &pi->prrun.pr_trace))
+#ifdef PROCFS_USE_READ_WRITE
+ sctl->cmd = PCSTRACE;
+ if (write (pi->ctl_fd, (char *) sctl, sizeof (struct sig_ctl)) < 0)
+#else
+ if (ioctl (pi->ctl_fd, PIOCSTRACE, &sctl->sigset))
+#endif
{
print_sys_errmsg ("PIOCSTRACE failed", errno);
}
/*
-LOCAL FUNCTION
+ LOCAL FUNCTION
- proc_set_exec_trap -- arrange for exec'd child to halt at startup
+ proc_set_exec_trap -- arrange for exec'd child to halt at startup
-SYNOPSIS
+ SYNOPSIS
- void proc_set_exec_trap (void)
+ void proc_set_exec_trap (void)
-DESCRIPTION
+ DESCRIPTION
- This function is called in the child process when starting up
- an inferior, prior to doing the exec of the actual inferior.
- It sets the child process's exitset to make exit from the exec
- system call an event of interest to stop on, and then simply
- returns. The child does the exec, the system call returns, and
- the child stops at the first instruction, ready for the gdb
- parent process to take control of it.
+ This function is called in the child process when starting up
+ an inferior, prior to doing the exec of the actual inferior.
+ It sets the child process's exitset to make exit from the exec
+ system call an event of interest to stop on, and then simply
+ returns. The child does the exec, the system call returns, and
+ the child stops at the first instruction, ready for the gdb
+ parent process to take control of it.
-NOTE
+ NOTE
- We need to use all local variables since the child may be sharing
- it's data space with the parent, if vfork was used rather than
- fork.
+ We need to use all local variables since the child may be sharing
+ it's data space with the parent, if vfork was used rather than
+ fork.
- Also note that we want to turn off the inherit-on-fork flag in
- the child process so that any grand-children start with all
- tracing flags cleared.
+ Also note that we want to turn off the inherit-on-fork flag in
+ the child process so that any grand-children start with all
+ tracing flags cleared.
*/
static void
proc_set_exec_trap ()
{
- sysset_t exitset;
- sysset_t entryset;
- auto char procname[32];
+ struct sys_ctl exitset;
+ struct sys_ctl entryset;
+ char procname[MAX_PROC_NAME_SIZE];
int fd;
-
- sprintf (procname, PROC_NAME_FMT, getpid ());
+
+ sprintf (procname, CTL_PROC_NAME_FMT, getpid ());
+#ifdef UNIXWARE
+ if ((fd = open (procname, O_WRONLY)) < 0)
+#else
if ((fd = open (procname, O_RDWR)) < 0)
+#endif
{
perror (procname);
gdb_flush (gdb_stderr);
_exit (127);
}
- premptyset (&exitset);
- premptyset (&entryset);
+ premptyset (&exitset.sysset);
+ premptyset (&entryset.sysset);
-#ifdef PIOCSSPCACT
+#ifdef PRFS_STOPEXEC
/* Under Alpha OSF/1 we have to use a PIOCSSPCACT ioctl to trace
exits from exec system calls because of the user level loader. */
{
_exit (127);
}
}
-#else
+#else /* PRFS_STOPEXEC */
/* GW: Rationale...
Not all systems with /proc have all the exec* syscalls with the same
names. On the SGI, for example, there is no SYS_exec, but there
*is* a SYS_execv. So, we try to account for that. */
#ifdef SYS_exec
- praddset (&exitset, SYS_exec);
+ praddset (&exitset.sysset, SYS_exec);
#endif
#ifdef SYS_execve
- praddset (&exitset, SYS_execve);
+ praddset (&exitset.sysset, SYS_execve);
#endif
#ifdef SYS_execv
- praddset (&exitset, SYS_execv);
+ praddset (&exitset.sysset, SYS_execv);
#endif
- if (ioctl (fd, PIOCSEXIT, &exitset) < 0)
+#ifdef PROCFS_USE_READ_WRITE
+ exitset.cmd = PCSEXIT;
+ if (write (fd, (char *) &exitset, sizeof (struct sys_ctl)) < 0)
+#else
+ if (ioctl (fd, PIOCSEXIT, &exitset.sysset) < 0)
+#endif
{
perror (procname);
gdb_flush (gdb_stderr);
_exit (127);
}
-#endif
+#endif /* PRFS_STOPEXEC */
- praddset (&entryset, SYS_exit);
+ praddset (&entryset.sysset, SYS_exit);
- if (ioctl (fd, PIOCSENTRY, &entryset) < 0)
+#ifdef PROCFS_USE_READ_WRITE
+ entryset.cmd = PCSENTRY;
+ if (write (fd, (char *) &entryset, sizeof (struct sys_ctl)) < 0)
+#else
+ if (ioctl (fd, PIOCSENTRY, &entryset.sysset) < 0)
+#endif
{
perror (procname);
gdb_flush (gdb_stderr);
modify_run_on_last_close_flag (fd, 1);
+#ifndef UNIXWARE /* since this is a solaris-ism, we don't want it */
+ /* NOTE: revisit when doing thread support for UW */
#ifdef PR_ASYNC
{
long pr_flags;
+#ifdef PROCFS_USE_READ_WRITE
+ struct proc_ctl pctl;
+#endif
/* Solaris needs this to make procfs treat all threads seperately. Without
this, all threads halt whenever something happens to any thread. Since
GDB wants to control all this itself, it needs to set PR_ASYNC. */
pr_flags = PR_ASYNC;
-
+#ifdef PROCFS_USE_READ_WRITE
+ pctl.cmd = PCSET;
+ pctl.data = PR_FORK | PR_ASYNC;
+ write (fd, (char *) &pctl, sizeof (struct proc_ctl));
+#else
ioctl (fd, PIOCSET, &pr_flags);
+#endif
}
-#endif /* PR_ASYNC */
+#endif /* PR_ASYNC */
+#endif /* !UNIXWARE */
}
/*
-GLOBAL FUNCTION
+ GLOBAL FUNCTION
- proc_iterate_over_mappings -- call function for every mapped space
+ proc_iterate_over_mappings -- call function for every mapped space
-SYNOPSIS
+ SYNOPSIS
- int proc_iterate_over_mappings (int (*func)())
+ int proc_iterate_over_mappings (int (*func)())
-DESCRIPTION
+ DESCRIPTION
- Given a pointer to a function, call that function for every
- mapped address space, passing it an open file descriptor for
- the file corresponding to that mapped address space (if any)
- and the base address of the mapped space. Quit when we hit
- the end of the mappings or the function returns nonzero.
+ Given a pointer to a function, call that function for every
+ mapped address space, passing it an open file descriptor for
+ the file corresponding to that mapped address space (if any)
+ and the base address of the mapped space. Quit when we hit
+ the end of the mappings or the function returns nonzero.
*/
+#ifdef UNIXWARE
+int
+proc_iterate_over_mappings (func)
+ int (*func) PARAMS ((int, CORE_ADDR));
+{
+ int nmap;
+ int fd;
+ int funcstat = 0;
+ prmap_t *prmaps;
+ prmap_t *prmap;
+ struct procinfo *pi;
+ struct stat sbuf;
+
+ pi = current_procinfo;
+
+ if (fstat (pi->map_fd, &sbuf) < 0)
+ return 0;
+
+ nmap = sbuf.st_size / sizeof (prmap_t);
+ prmaps = (prmap_t *) alloca (nmap * sizeof (prmap_t));
+ if ((lseek (pi->map_fd, 0, SEEK_SET) == 0) &&
+ (read (pi->map_fd, (char *) prmaps, nmap * sizeof (prmap_t)) ==
+ (nmap * sizeof (prmap_t))))
+ {
+ int i = 0;
+ for (prmap = prmaps; i < nmap && funcstat == 0; ++prmap, ++i)
+ {
+ char name[sizeof ("/proc/1234567890/object") +
+ sizeof (prmap->pr_mapname)];
+ sprintf (name, "/proc/%d/object/%s", pi->pid, prmap->pr_mapname);
+ if ((fd = open (name, O_RDONLY)) == -1)
+ {
+ funcstat = 1;
+ break;
+ }
+ funcstat = (*func) (fd, (CORE_ADDR) prmap->pr_vaddr);
+ close (fd);
+ }
+ }
+ return (funcstat);
+}
+#else /* UNIXWARE */
int
proc_iterate_over_mappings (func)
int (*func) PARAMS ((int, CORE_ADDR));
pi = current_procinfo;
- if (ioctl (pi->fd, PIOCNMAP, &nmap) == 0)
+ if (ioctl (pi->map_fd, PIOCNMAP, &nmap) == 0)
{
prmaps = (struct prmap *) alloca ((nmap + 1) * sizeof (*prmaps));
- if (ioctl (pi->fd, PIOCMAP, prmaps) == 0)
+ if (ioctl (pi->map_fd, PIOCMAP, prmaps) == 0)
{
- for (prmap = prmaps; prmap -> pr_size && funcstat == 0; ++prmap)
+ for (prmap = prmaps; prmap->pr_size && funcstat == 0; ++prmap)
{
- fd = proc_address_to_fd (pi, (CORE_ADDR) prmap -> pr_vaddr, 0);
- funcstat = (*func) (fd, (CORE_ADDR) prmap -> pr_vaddr);
+ fd = proc_address_to_fd (pi, (CORE_ADDR) prmap->pr_vaddr, 0);
+ funcstat = (*func) (fd, (CORE_ADDR) prmap->pr_vaddr);
close (fd);
}
}
}
return (funcstat);
}
+#endif /* UNIXWARE */
-#if 0 /* Currently unused */
+#if 0 /* Currently unused */
/*
-GLOBAL FUNCTION
+ GLOBAL FUNCTION
- proc_base_address -- find base address for segment containing address
+ proc_base_address -- find base address for segment containing address
-SYNOPSIS
+ SYNOPSIS
- CORE_ADDR proc_base_address (CORE_ADDR addr)
+ CORE_ADDR proc_base_address (CORE_ADDR addr)
-DESCRIPTION
+ DESCRIPTION
- Given an address of a location in the inferior, find and return
- the base address of the mapped segment containing that address.
+ Given an address of a location in the inferior, find and return
+ the base address of the mapped segment containing that address.
- This is used for example, by the shared library support code,
- where we have the pc value for some location in the shared library
- where we are stopped, and need to know the base address of the
- segment containing that address.
-*/
+ This is used for example, by the shared library support code,
+ where we have the pc value for some location in the shared library
+ where we are stopped, and need to know the base address of the
+ segment containing that address.
+ */
CORE_ADDR
proc_base_address (addr)
pi = current_procinfo;
- if (ioctl (pi->fd, PIOCNMAP, &nmap) == 0)
+ if (ioctl (pi->map_fd, PIOCNMAP, &nmap) == 0)
{
prmaps = (struct prmap *) alloca ((nmap + 1) * sizeof (*prmaps));
- if (ioctl (pi->fd, PIOCMAP, prmaps) == 0)
+ if (ioctl (pi->map_fd, PIOCMAP, prmaps) == 0)
{
- for (prmap = prmaps; prmap -> pr_size; ++prmap)
+ for (prmap = prmaps; prmap->pr_size; ++prmap)
{
- if ((prmap -> pr_vaddr <= (caddr_t) addr) &&
- (prmap -> pr_vaddr + prmap -> pr_size > (caddr_t) addr))
+ if ((prmap->pr_vaddr <= (caddr_t) addr) &&
+ (prmap->pr_vaddr + prmap->pr_size > (caddr_t) addr))
{
- baseaddr = (CORE_ADDR) prmap -> pr_vaddr;
+ baseaddr = (CORE_ADDR) prmap->pr_vaddr;
break;
}
}
return (baseaddr);
}
-#endif /* 0 */
+#endif /* 0 */
+#ifndef UNIXWARE
/*
-LOCAL FUNCTION
+ LOCAL FUNCTION
- proc_address_to_fd -- return open fd for file mapped to address
+ proc_address_to_fd -- return open fd for file mapped to address
-SYNOPSIS
+ SYNOPSIS
- int proc_address_to_fd (struct procinfo *pi, CORE_ADDR addr, complain)
+ int proc_address_to_fd (struct procinfo *pi, CORE_ADDR addr, complain)
-DESCRIPTION
+ DESCRIPTION
- Given an address in the current inferior's address space, use the
- /proc interface to find an open file descriptor for the file that
- this address was mapped in from. Return -1 if there is no current
- inferior. Print a warning message if there is an inferior but
- the address corresponds to no file (IE a bogus address).
+ Given an address in the current inferior's address space, use the
+ /proc interface to find an open file descriptor for the file that
+ this address was mapped in from. Return -1 if there is no current
+ inferior. Print a warning message if there is an inferior but
+ the address corresponds to no file (IE a bogus address).
-*/
+ */
static int
proc_address_to_fd (pi, addr, complain)
{
int fd = -1;
- if ((fd = ioctl (pi->fd, PIOCOPENM, (caddr_t *) &addr)) < 0)
+ if ((fd = ioctl (pi->ctl_fd, PIOCOPENM, (caddr_t *) & addr)) < 0)
{
if (complain)
{
}
return (fd);
}
-
+#endif /* !UNIXWARE */
/* Attach to process PID, then initialize for debugging it
and wait for the trace-trap that results from attaching. */
pid = atoi (args);
- if (pid == getpid()) /* Trying to masturbate? */
+ if (pid == getpid ()) /* Trying to masturbate? */
error ("I refuse to debug myself!");
if (from_tty)
if (exec_file == 0)
exec_file = "";
printf_unfiltered ("Detaching from program: %s %s\n",
- exec_file, target_pid_to_str (inferior_pid));
+ exec_file, target_pid_to_str (inferior_pid));
gdb_flush (gdb_stdout);
}
if (args)
siggnal = atoi (args);
-
+
do_detach (siggnal);
inferior_pid = 0;
- unpush_target (&procfs_ops); /* Pop out of handling an inferior */
+ unpush_target (&procfs_ops); /* Pop out of handling an inferior */
}
/* Get ready to modify the registers array. On machines which store
struct target_ops *ignore;
{
printf_unfiltered ("\tUsing the running image of %s %s via /proc.\n",
- attach_flag? "attached": "child", target_pid_to_str (inferior_pid));
+ attach_flag ? "attached" : "child", target_pid_to_str (inferior_pid));
}
/* ARGSUSED */
/*
-LOCAL FUNCTION
+ LOCAL FUNCTION
- do_attach -- attach to an already existing process
+ do_attach -- attach to an already existing process
-SYNOPSIS
+ SYNOPSIS
- int do_attach (int pid)
+ int do_attach (int pid)
-DESCRIPTION
+ DESCRIPTION
- Attach to an already existing process with the specified process
- id. If the process is not already stopped, query whether to
- stop it or not.
+ Attach to an already existing process with the specified process
+ id. If the process is not already stopped, query whether to
+ stop it or not.
-NOTES
+ NOTES
- The option of stopping at attach time is specific to the /proc
- versions of gdb. Versions using ptrace force the attachee
- to stop. (I have changed this version to do so, too. All you
- have to do is "continue" to make it go on. -- gnu@cygnus.com)
+ The option of stopping at attach time is specific to the /proc
+ versions of gdb. Versions using ptrace force the attachee
+ to stop. (I have changed this version to do so, too. All you
+ have to do is "continue" to make it go on. -- gnu@cygnus.com)
-*/
+ */
static int
do_attach (pid)
int pid;
{
- int result;
struct procinfo *pi;
+#ifdef PROCFS_USE_READ_WRITE
+ struct flt_ctl fctl;
+#endif
+ int nlwp, *lwps;
- pi = (struct procinfo *) xmalloc (sizeof (struct procinfo));
-
- if (!open_proc_file (pid, pi, O_RDWR))
- {
- free (pi);
- perror_with_name (pi->pathname);
- /* NOTREACHED */
- }
-
- pid = pi -> pid;
-
- /* Add new process to process info list */
-
- pi->next = procinfo_list;
- procinfo_list = pi;
+ pi = init_procinfo (pid, 0);
- add_fd (pi); /* Add to list for poll/select */
+#ifdef PIOCLWPIDS
+ nlwp = pi->prstatus.pr_nlwp;
+ lwps = alloca ((2 * nlwp + 2) * sizeof (id_t));
- /* Get current status of process and if it is not already stopped,
- then stop it. Remember whether or not it was stopped when we first
- examined it. */
-
- if (ioctl (pi->fd, PIOCSTATUS, &pi->prstatus) < 0)
+ if (ioctl (pi->ctl_fd, PIOCLWPIDS, lwps))
{
print_sys_errmsg (pi->pathname, errno);
- close_proc_file (pi);
- error ("PIOCSTATUS failed");
- }
- if (pi->prstatus.pr_flags & (PR_STOPPED | PR_ISTOP))
- {
- pi->was_stopped = 1;
+ error ("PIOCLWPIDS failed");
}
- else
+#else /* PIOCLWPIDS */
+ nlwp = 1;
+ lwps = alloca ((2 * nlwp + 2) * sizeof *lwps);
+ lwps[0] = 0;
+#endif
+ for (; nlwp > 0; nlwp--, lwps++)
{
- pi->was_stopped = 0;
- if (1 || query ("Process is currently running, stop it? "))
- {
- /* Make it run again when we close it. */
-
- modify_run_on_last_close_flag (pi->fd, 1);
+ /* First one has already been created above. */
+ if ((pi = find_procinfo ((*lwps << 16) | pid, 1)) == 0)
+ pi = init_procinfo ((*lwps << 16) | pid, 0);
- if (ioctl (pi->fd, PIOCSTOP, &pi->prstatus) < 0)
- {
- print_sys_errmsg (pi->pathname, errno);
- close_proc_file (pi);
- error ("PIOCSTOP failed");
- }
- pi->nopass_next_sigstop = 1;
+ if (THE_PR_LWP (pi->prstatus).pr_flags & (PR_STOPPED | PR_ISTOP))
+ {
+ pi->was_stopped = 1;
}
else
{
- printf_unfiltered ("Ok, gdb will wait for %s to stop.\n", target_pid_to_str (pid));
+ pi->was_stopped = 0;
+ if (1 || query ("Process is currently running, stop it? "))
+ {
+#ifdef PROCFS_USE_READ_WRITE
+ long cmd;
+#endif
+ /* Make it run again when we close it. */
+ modify_run_on_last_close_flag (pi->ctl_fd, 1);
+#ifdef PROCFS_USE_READ_WRITE
+ cmd = PCSTOP;
+ if (write (pi->ctl_fd, (char *) &cmd, sizeof (long)) < 0)
+#else
+ if (ioctl (pi->ctl_fd, PIOCSTOP, &pi->prstatus) < 0)
+#endif
+ {
+ print_sys_errmsg (pi->pathname, errno);
+ close_proc_file (pi);
+ error ("PIOCSTOP failed");
+ }
+#ifdef UNIXWARE
+ if (!procfs_read_status (pi))
+ {
+ print_sys_errmsg (pi->pathname, errno);
+ close_proc_file (pi);
+ error ("procfs_read_status failed");
+ }
+#endif
+ pi->nopass_next_sigstop = 1;
+ }
+ else
+ {
+ printf_unfiltered ("Ok, gdb will wait for %s to stop.\n",
+ target_pid_to_str (pi->pid));
+ }
}
- }
- /* Remember some things about the inferior that we will, or might, change
- so that we can restore them when we detach. */
-
- ioctl (pi->fd, PIOCGTRACE, &pi->saved_trace);
- ioctl (pi->fd, PIOCGHOLD, &pi->saved_sighold);
- ioctl (pi->fd, PIOCGFAULT, &pi->saved_fltset);
- ioctl (pi->fd, PIOCGENTRY, &pi->saved_entryset);
- ioctl (pi->fd, PIOCGEXIT, &pi->saved_exitset);
-
- /* Set up trace and fault sets, as gdb expects them. */
-
- memset (&pi->prrun, 0, sizeof (pi->prrun));
- prfillset (&pi->prrun.pr_trace);
- procfs_notice_signals (pid);
- prfillset (&pi->prrun.pr_fault);
- prdelset (&pi->prrun.pr_fault, FLTPAGE);
+#ifdef PROCFS_USE_READ_WRITE
+ fctl.cmd = PCSFAULT;
+ prfillset (&fctl.fltset);
+ prdelset (&fctl.fltset, FLTPAGE);
+ if (write (pi->ctl_fd, (char *) &fctl, sizeof (struct flt_ctl)) < 0)
+ print_sys_errmsg ("PCSFAULT failed", errno);
+#else /* PROCFS_USE_READ_WRITE */
+ prfillset (&pi->prrun.pr_fault);
+ prdelset (&pi->prrun.pr_fault, FLTPAGE);
#ifdef PROCFS_DONT_TRACE_FAULTS
- premptyset (&pi->prrun.pr_fault);
+ premptyset (&pi->prrun.pr_fault);
#endif
-
- if (ioctl (pi->fd, PIOCSFAULT, &pi->prrun.pr_fault))
- {
- print_sys_errmsg ("PIOCSFAULT failed", errno);
- }
- if (ioctl (pi->fd, PIOCSTRACE, &pi->prrun.pr_trace))
- {
- print_sys_errmsg ("PIOCSTRACE failed", errno);
+ if (ioctl (pi->ctl_fd, PIOCSFAULT, &pi->prrun.pr_fault))
+ {
+ print_sys_errmsg ("PIOCSFAULT failed", errno);
+ }
+ if (ioctl (pi->ctl_fd, PIOCSTRACE, &pi->prrun.pr_trace))
+ {
+ print_sys_errmsg ("PIOCSTRACE failed", errno);
+ }
+ add_thread (pi->pid);
+ procfs_set_inferior_syscall_traps (pi);
+#endif /* PROCFS_USE_READ_WRITE */
}
attach_flag = 1;
- return (pid);
+ return (pi->pid);
}
/*
-LOCAL FUNCTION
+ LOCAL FUNCTION
- do_detach -- detach from an attached-to process
+ do_detach -- detach from an attached-to process
-SYNOPSIS
+ SYNOPSIS
- void do_detach (int signal)
+ void do_detach (int signal)
-DESCRIPTION
+ DESCRIPTION
- Detach from the current attachee.
+ Detach from the current attachee.
- If signal is non-zero, the attachee is started running again and sent
- the specified signal.
+ If signal is non-zero, the attachee is started running again and sent
+ the specified signal.
- If signal is zero and the attachee was not already stopped when we
- attached to it, then we make it runnable again when we detach.
+ If signal is zero and the attachee was not already stopped when we
+ attached to it, then we make it runnable again when we detach.
- Otherwise, we query whether or not to make the attachee runnable
- again, since we may simply want to leave it in the state it was in
- when we attached.
+ Otherwise, we query whether or not to make the attachee runnable
+ again, since we may simply want to leave it in the state it was in
+ when we attached.
- We report any problems, but do not consider them errors, since we
- MUST detach even if some things don't seem to go right. This may not
- be the ideal situation. (FIXME).
+ We report any problems, but do not consider them errors, since we
+ MUST detach even if some things don't seem to go right. This may not
+ be the ideal situation. (FIXME).
*/
static void
do_detach (signal)
int signal;
{
- int result;
struct procinfo *pi;
- pi = current_procinfo;
-
- if (signal)
- {
- set_proc_siginfo (pi, signal);
- }
- if (ioctl (pi->fd, PIOCSEXIT, &pi->saved_exitset) < 0)
- {
- print_sys_errmsg (pi->pathname, errno);
- printf_unfiltered ("PIOCSEXIT failed.\n");
- }
- if (ioctl (pi->fd, PIOCSENTRY, &pi->saved_entryset) < 0)
- {
- print_sys_errmsg (pi->pathname, errno);
- printf_unfiltered ("PIOCSENTRY failed.\n");
- }
- if (ioctl (pi->fd, PIOCSTRACE, &pi->saved_trace) < 0)
- {
- print_sys_errmsg (pi->pathname, errno);
- printf_unfiltered ("PIOCSTRACE failed.\n");
- }
- if (ioctl (pi->fd, PIOCSHOLD, &pi->saved_sighold) < 0)
- {
- print_sys_errmsg (pi->pathname, errno);
- printf_unfiltered ("PIOSCHOLD failed.\n");
- }
- if (ioctl (pi->fd, PIOCSFAULT, &pi->saved_fltset) < 0)
+ for (pi = procinfo_list; pi; pi = pi->next)
{
- print_sys_errmsg (pi->pathname, errno);
- printf_unfiltered ("PIOCSFAULT failed.\n");
- }
- if (ioctl (pi->fd, PIOCSTATUS, &pi->prstatus) < 0)
- {
- print_sys_errmsg (pi->pathname, errno);
- printf_unfiltered ("PIOCSTATUS failed.\n");
- }
- else
- {
- if (signal || (pi->prstatus.pr_flags & (PR_STOPPED | PR_ISTOP)))
+ if (signal)
{
- if (signal || !pi->was_stopped ||
- query ("Was stopped when attached, make it runnable again? "))
+ set_proc_siginfo (pi, signal);
+ }
+#ifdef PROCFS_USE_READ_WRITE
+ pi->saved_exitset.cmd = PCSEXIT;
+ if (write (pi->ctl_fd, (char *) &pi->saved_exitset,
+ sizeof (struct sys_ctl)) < 0)
+#else
+ if (ioctl (pi->ctl_fd, PIOCSEXIT, &pi->saved_exitset.sysset) < 0)
+#endif
+ {
+ print_sys_errmsg (pi->pathname, errno);
+ printf_unfiltered ("PIOCSEXIT failed.\n");
+ }
+#ifdef PROCFS_USE_READ_WRITE
+ pi->saved_entryset.cmd = PCSENTRY;
+ if (write (pi->ctl_fd, (char *) &pi->saved_entryset,
+ sizeof (struct sys_ctl)) < 0)
+#else
+ if (ioctl (pi->ctl_fd, PIOCSENTRY, &pi->saved_entryset.sysset) < 0)
+#endif
+ {
+ print_sys_errmsg (pi->pathname, errno);
+ printf_unfiltered ("PIOCSENTRY failed.\n");
+ }
+#ifdef PROCFS_USE_READ_WRITE
+ pi->saved_trace.cmd = PCSTRACE;
+ if (write (pi->ctl_fd, (char *) &pi->saved_trace,
+ sizeof (struct sig_ctl)) < 0)
+#else
+ if (ioctl (pi->ctl_fd, PIOCSTRACE, &pi->saved_trace.sigset) < 0)
+#endif
+ {
+ print_sys_errmsg (pi->pathname, errno);
+ printf_unfiltered ("PIOCSTRACE failed.\n");
+ }
+#ifndef UNIXWARE
+ if (ioctl (pi->ctl_fd, PIOCSHOLD, &pi->saved_sighold.sigset) < 0)
+ {
+ print_sys_errmsg (pi->pathname, errno);
+ printf_unfiltered ("PIOSCHOLD failed.\n");
+ }
+#endif
+#ifdef PROCFS_USE_READ_WRITE
+ pi->saved_fltset.cmd = PCSFAULT;
+ if (write (pi->ctl_fd, (char *) &pi->saved_fltset,
+ sizeof (struct flt_ctl)) < 0)
+#else
+ if (ioctl (pi->ctl_fd, PIOCSFAULT, &pi->saved_fltset.fltset) < 0)
+#endif
+ {
+ print_sys_errmsg (pi->pathname, errno);
+ printf_unfiltered ("PIOCSFAULT failed.\n");
+ }
+ if (!procfs_read_status (pi))
+ {
+ print_sys_errmsg (pi->pathname, errno);
+ printf_unfiltered ("procfs_read_status failed.\n");
+ }
+ else
+ {
+ if (signal
+ || (THE_PR_LWP (pi->prstatus).pr_flags & (PR_STOPPED | PR_ISTOP)))
{
- /* Clear any pending signal if we want to detach without
- a signal. */
- if (signal == 0)
- set_proc_siginfo (pi, signal);
+#ifdef PROCFS_USE_READ_WRITE
+ long cmd;
+#endif
- /* Clear any fault that might have stopped it. */
- if (ioctl (pi->fd, PIOCCFAULT, 0))
+ if (signal || !pi->was_stopped ||
+ query ("Was stopped when attached, make it runnable again? "))
{
- print_sys_errmsg (pi->pathname, errno);
- printf_unfiltered ("PIOCCFAULT failed.\n");
- }
+ /* Clear any pending signal if we want to detach without
+ a signal. */
+ if (signal == 0)
+ set_proc_siginfo (pi, signal);
+
+ /* Clear any fault that might have stopped it. */
+#ifdef PROCFS_USE_READ_WRITE
+ cmd = PCCFAULT;
+ if (write (pi->ctl_fd, (char *) &cmd, sizeof (long)) < 0)
+#else
+ if (ioctl (pi->ctl_fd, PIOCCFAULT, 0))
+#endif
+ {
+ print_sys_errmsg (pi->pathname, errno);
+ printf_unfiltered ("PIOCCFAULT failed.\n");
+ }
- /* Make it run again when we close it. */
+ /* Make it run again when we close it. */
- modify_run_on_last_close_flag (pi->fd, 1);
+ modify_run_on_last_close_flag (pi->ctl_fd, 1);
+ }
}
}
+ close_proc_file (pi);
}
- close_proc_file (pi);
attach_flag = 0;
}
/* emulate wait() as much as possible.
- Wait for child to do something. Return pid of child, or -1 in case
- of error; store status in *OURSTATUS.
-
- Not sure why we can't
- just use wait(), but it seems to have problems when applied to a
- process being controlled with the /proc interface.
-
- We have a race problem here with no obvious solution. We need to let
- the inferior run until it stops on an event of interest, which means
- that we need to use the PIOCWSTOP ioctl. However, we cannot use this
- ioctl if the process is already stopped on something that is not an
- event of interest, or the call will hang indefinitely. Thus we first
- use PIOCSTATUS to see if the process is not stopped. If not, then we
- use PIOCWSTOP. But during the window between the two, if the process
- stops for any reason that is not an event of interest (such as a job
- control signal) then gdb will hang. One possible workaround is to set
- an alarm to wake up every minute of so and check to see if the process
- is still running, and if so, then reissue the PIOCWSTOP. But this is
- a real kludge, so has not been implemented. FIXME: investigate
- alternatives.
-
- FIXME: Investigate why wait() seems to have problems with programs
- being control by /proc routines. */
-
+ Wait for child to do something. Return pid of child, or -1 in case
+ of error; store status in *OURSTATUS.
+
+ Not sure why we can't
+ just use wait(), but it seems to have problems when applied to a
+ process being controlled with the /proc interface.
+
+ We have a race problem here with no obvious solution. We need to let
+ the inferior run until it stops on an event of interest, which means
+ that we need to use the PIOCWSTOP ioctl. However, we cannot use this
+ ioctl if the process is already stopped on something that is not an
+ event of interest, or the call will hang indefinitely. Thus we first
+ use PIOCSTATUS to see if the process is not stopped. If not, then we
+ use PIOCWSTOP. But during the window between the two, if the process
+ stops for any reason that is not an event of interest (such as a job
+ control signal) then gdb will hang. One possible workaround is to set
+ an alarm to wake up every minute of so and check to see if the process
+ is still running, and if so, then reissue the PIOCWSTOP. But this is
+ a real kludge, so has not been implemented. FIXME: investigate
+ alternatives.
+
+ FIXME: Investigate why wait() seems to have problems with programs
+ being control by /proc routines. */
static int
procfs_wait (pid, ourstatus)
int pid;
int rtnval = -1;
struct procinfo *pi;
- if (pid != -1) /* Non-specific process? */
- pi = NULL;
- else
- for (pi = procinfo_list; pi; pi = pi->next)
- if (pi->had_event)
- break;
+scan_again:
- if (!pi)
+ /* handle all syscall events first, otherwise we might not
+ notice a thread was created until too late. */
+
+ for (pi = procinfo_list; pi; pi = pi->next)
{
- wait_again:
+ if (!pi->had_event)
+ continue;
- if (pi)
- pi->had_event = 0;
+ if (!(THE_PR_LWP (pi->prstatus).pr_flags & (PR_STOPPED | PR_ISTOP)))
+ continue;
+
+ why = THE_PR_LWP (pi->prstatus).pr_why;
+ what = THE_PR_LWP (pi->prstatus).pr_what;
+ if (why == PR_SYSENTRY || why == PR_SYSEXIT)
+ {
+ int i;
+ int found_handler = 0;
+
+ for (i = 0; i < pi->num_syscall_handlers; i++)
+ if (pi->syscall_handlers[i].syscall_num == what)
+ {
+ found_handler = 1;
+ pi->saved_rtnval = pi->pid;
+ pi->saved_statval = 0;
+ if (!pi->syscall_handlers[i].func
+ (pi, what, why, &pi->saved_rtnval, &pi->saved_statval))
+ pi->had_event = 0;
+ break;
+ }
- pi = wait_fd ();
+ if (!found_handler)
+ {
+ if (why == PR_SYSENTRY)
+ error ("PR_SYSENTRY, unhandled system call %d", what);
+ else
+ error ("PR_SYSEXIT, unhandled system call %d", what);
+ }
+ }
}
- if (pid != -1)
- for (pi = procinfo_list; pi; pi = pi->next)
- if (pi->pid == pid && pi->had_event)
- break;
+ /* find a relevant process with an event */
- if (!pi && !checkerr)
- goto wait_again;
+ for (pi = procinfo_list; pi; pi = pi->next)
+ if (pi->had_event && (pid == -1 || pi->pid == pid))
+ break;
+
+ if (!pi)
+ {
+ wait_fd ();
+ goto scan_again;
+ }
- if (!checkerr && !(pi->prstatus.pr_flags & (PR_STOPPED | PR_ISTOP)))
+ if (!checkerr
+ && !(THE_PR_LWP (pi->prstatus).pr_flags & (PR_STOPPED | PR_ISTOP)))
{
- if (ioctl (pi->fd, PIOCWSTOP, &pi->prstatus) < 0)
+ if (!procfs_write_pcwstop (pi))
{
checkerr++;
}
- }
+ }
if (checkerr)
{
if (errno == ENOENT)
{
+ /* XXX Fixme -- what to do if attached? Can't call wait... */
rtnval = wait (&statval);
- if (rtnval != inferior_pid)
+ if ((rtnval) != (PIDGET (inferior_pid)))
{
print_sys_errmsg (pi->pathname, errno);
- error ("PIOCWSTOP, wait failed, returned %d", rtnval);
+ error ("procfs_wait: wait failed, returned %d", rtnval);
/* NOTREACHED */
}
}
/* NOTREACHED */
}
}
- else if (pi->prstatus.pr_flags & (PR_STOPPED | PR_ISTOP))
+ else if (THE_PR_LWP (pi->prstatus).pr_flags & (PR_STOPPED | PR_ISTOP))
{
+#ifdef UNIXWARE
+ rtnval = pi->prstatus.pr_pid;
+#else
rtnval = pi->pid;
- why = pi->prstatus.pr_why;
- what = pi->prstatus.pr_what;
+#endif
+ why = THE_PR_LWP (pi->prstatus).pr_why;
+ what = THE_PR_LWP (pi->prstatus).pr_what;
switch (why)
{
break;
case PR_SYSENTRY:
case PR_SYSEXIT:
- {
- int i;
- int found_handler = 0;
-
- for (i = 0; i < pi->num_syscall_handlers; i++)
- if (pi->syscall_handlers[i].syscall_num == what)
- {
- found_handler = 1;
- if (!pi->syscall_handlers[i].func (pi, what, why,
- &rtnval, &statval))
- goto wait_again;
-
- break;
- }
-
- if (!found_handler)
- if (why == PR_SYSENTRY)
- error ("PR_SYSENTRY, unhandled system call %d", what);
- else
- error ("PR_SYSEXIT, unhandled system call %d", what);
- }
+ rtnval = pi->saved_rtnval;
+ statval = pi->saved_statval;
break;
case PR_REQUESTED:
statval = (SIGSTOP << 8) | 0177;
#endif
#ifndef FAULTED_USE_SIGINFO
/* Irix, contrary to the documentation, fills in 0 for si_signo.
- Solaris fills in si_signo. I'm not sure about others. */
+ Solaris fills in si_signo. I'm not sure about others. */
case FLTPRIV:
case FLTILL:
statval = (SIGILL << 8) | 0177;
case FLTBPT:
case FLTTRACE:
statval = (SIGTRAP << 8) | 0177;
- break;
+ break;
case FLTSTACK:
case FLTACCESS:
case FLTBOUNDS:
case FLTFPE:
statval = (SIGFPE << 8) | 0177;
break;
- case FLTPAGE: /* Recoverable page fault */
+ case FLTPAGE: /* Recoverable page fault */
#endif /* not FAULTED_USE_SIGINFO */
default:
/* Use the signal which the kernel assigns. This is better than
- trying to second-guess it from the fault. In fact, I suspect
- that FLTACCESS can be either SIGSEGV or SIGBUS. */
- statval = ((pi->prstatus.pr_info.si_signo) << 8) | 0177;
+ trying to second-guess it from the fault. In fact, I suspect
+ that FLTACCESS can be either SIGSEGV or SIGBUS. */
+ statval =
+ ((THE_PR_LWP (pi->prstatus).pr_info.si_signo) << 8) | 0177;
break;
}
break;
default:
error ("PIOCWSTOP, unknown why %d, what %d", why, what);
}
-/* Stop all the other threads when any of them stops. */
+ /* Stop all the other threads when any of them stops. */
{
- struct procinfo *procinfo;
+ struct procinfo *procinfo, *next_pi;
- for (procinfo = procinfo_list; procinfo; procinfo = procinfo->next)
+ for (procinfo = procinfo_list; procinfo; procinfo = next_pi)
{
+ next_pi = procinfo->next;
if (!procinfo->had_event)
{
+#ifdef PROCFS_USE_READ_WRITE
+ long cmd = PCSTOP;
+ if (write (pi->ctl_fd, (char *) &cmd, sizeof (long)) < 0)
+ {
+ print_sys_errmsg (procinfo->pathname, errno);
+ error ("PCSTOP failed");
+ }
+#else
/* A bug in Solaris (2.5) causes us to hang when trying to
stop a stopped process. So, we have to check first in
order to avoid the hang. */
- if (ioctl (procinfo->fd, PIOCSTATUS, &procinfo->prstatus) < 0)
+ if (!procfs_read_status (procinfo))
{
- print_sys_errmsg (procinfo->pathname, errno);
- error ("PIOCSTATUS failed");
+ /* The LWP has apparently terminated. */
+ if (info_verbose)
+ printf_filtered ("LWP %d doesn't respond.\n",
+ (procinfo->pid >> 16) & 0xffff);
+ close_proc_file (procinfo);
+ continue;
}
+
if (!(procinfo->prstatus.pr_flags & PR_STOPPED))
- if (ioctl (procinfo->fd, PIOCSTOP, &procinfo->prstatus) < 0)
+ if (ioctl (procinfo->ctl_fd, PIOCSTOP, &procinfo->prstatus)
+ < 0)
{
print_sys_errmsg (procinfo->pathname, errno);
- error ("PIOCSTOP failed");
+ warning ("PIOCSTOP failed");
}
+#endif
}
}
}
}
else
{
- error ("PIOCWSTOP, stopped for unknown/unhandled reason, flags %#x",
- pi->prstatus.pr_flags);
+ error ("PIOCWSTOP, stopped for unknown/unhandled reason, flags %#x",
+ THE_PR_LWP (pi->prstatus).pr_flags);
}
store_waitstatus (ourstatus, statval);
if (rtnval == -1) /* No more children to wait for */
{
- fprintf_unfiltered (gdb_stderr, "Child process unexpectedly missing.\n");
+ warning ("Child process unexpectedly missing");
/* Claim it exited with unknown signal. */
ourstatus->kind = TARGET_WAITKIND_SIGNALLED;
ourstatus->value.sig = TARGET_SIGNAL_UNKNOWN;
/*
-LOCAL FUNCTION
+ LOCAL FUNCTION
- set_proc_siginfo - set a process's current signal info
+ set_proc_siginfo - set a process's current signal info
-SYNOPSIS
+ SYNOPSIS
- void set_proc_siginfo (struct procinfo *pip, int signo);
+ void set_proc_siginfo (struct procinfo *pip, int signo);
-DESCRIPTION
+ DESCRIPTION
- Given a pointer to a process info struct in PIP and a signal number
- in SIGNO, set the process's current signal and its associated signal
- information. The signal will be delivered to the process immediately
- after execution is resumed, even if it is being held. In addition,
- this particular delivery will not cause another PR_SIGNALLED stop
- even if the signal is being traced.
+ Given a pointer to a process info struct in PIP and a signal number
+ in SIGNO, set the process's current signal and its associated signal
+ information. The signal will be delivered to the process immediately
+ after execution is resumed, even if it is being held. In addition,
+ this particular delivery will not cause another PR_SIGNALLED stop
+ even if the signal is being traced.
- If we are not delivering the same signal that the prstatus siginfo
- struct contains information about, then synthesize a siginfo struct
- to match the signal we are doing to deliver, make it of the type
- "generated by a user process", and send this synthesized copy. When
- used to set the inferior's signal state, this will be required if we
- are not currently stopped because of a traced signal, or if we decide
- to continue with a different signal.
+ If we are not delivering the same signal that the prstatus siginfo
+ struct contains information about, then synthesize a siginfo struct
+ to match the signal we are going to deliver, make it of the type
+ "generated by a user process", and send this synthesized copy. When
+ used to set the inferior's signal state, this will be required if we
+ are not currently stopped because of a traced signal, or if we decide
+ to continue with a different signal.
- Note that when continuing the inferior from a stop due to receipt
- of a traced signal, we either have set PRCSIG to clear the existing
- signal, or we have to call this function to do a PIOCSSIG with either
- the existing siginfo struct from pr_info, or one we have synthesized
- appropriately for the signal we want to deliver. Otherwise if the
- signal is still being traced, the inferior will immediately stop
- again.
+ Note that when continuing the inferior from a stop due to receipt
+ of a traced signal, we either have set PRCSIG to clear the existing
+ signal, or we have to call this function to do a PIOCSSIG with either
+ the existing siginfo struct from pr_info, or one we have synthesized
+ appropriately for the signal we want to deliver. Otherwise if the
+ signal is still being traced, the inferior will immediately stop
+ again.
- See siginfo(5) for more details.
-*/
+ See siginfo(5) for more details.
+ */
static void
set_proc_siginfo (pip, signo)
{
struct siginfo newsiginfo;
struct siginfo *sip;
+#if defined (UNIXWARE) || defined (PROCFS_USE_READ_WRITE)
+ struct sigi_ctl sictl;
+#endif
#ifdef PROCFS_DONT_PIOCSSIG_CURSIG
/* With Alpha OSF/1 procfs, the kernel gets really confused if it
receives a PIOCSSIG with a signal identical to the current signal,
it messes up the current signal. Work around the kernel bug. */
- if (signo == pip -> prstatus.pr_cursig)
+ if (signo == THE_PR_LWP (pip->prstatus).pr_cursig)
return;
#endif
- if (signo == pip -> prstatus.pr_info.si_signo)
+#ifdef UNIXWARE
+ if (signo == THE_PR_LWP (pip->prstatus).pr_info.si_signo)
+ {
+ memcpy ((char *) &sictl.siginfo, (char *) &pip->prstatus.pr_lwp.pr_info,
+ sizeof (siginfo_t));
+ }
+#else
+ if (signo == THE_PR_LWP (pip->prstatus).pr_info.si_signo)
{
- sip = &pip -> prstatus.pr_info;
+ sip = &pip->prstatus.pr_info;
}
+#endif
else
{
+#ifdef UNIXWARE
+ siginfo_t *sip = &sictl.siginfo;
+ memset ((char *) sip, 0, sizeof (siginfo_t));
+#else
memset ((char *) &newsiginfo, 0, sizeof (newsiginfo));
sip = &newsiginfo;
- sip -> si_signo = signo;
- sip -> si_code = 0;
- sip -> si_errno = 0;
- sip -> si_pid = getpid ();
- sip -> si_uid = getuid ();
+#endif
+ sip->si_signo = signo;
+ sip->si_code = 0;
+ sip->si_errno = 0;
+ sip->si_pid = getpid ();
+ sip->si_uid = getuid ();
}
- if (ioctl (pip -> fd, PIOCSSIG, sip) < 0)
+#ifdef PROCFS_USE_READ_WRITE
+ sictl.cmd = PCSSIG;
+ if (write (pip->ctl_fd, (char *) &sictl, sizeof (struct sigi_ctl)) < 0)
+#else
+ if (ioctl (pip->ctl_fd, PIOCSSIG, sip) < 0)
+#endif
{
- print_sys_errmsg (pip -> pathname, errno);
+ print_sys_errmsg (pip->pathname, errno);
warning ("PIOCSSIG failed");
}
}
enum target_signal signo;
{
int signal_to_pass;
- struct procinfo *pi, *procinfo;
+ struct procinfo *pi, *procinfo, *next_pi;
+#if defined (UNIXWARE) || defined (PROCFS_USE_READ_WRITE)
+ struct proc_ctl pctl;
+#endif
pi = find_procinfo (pid == -1 ? inferior_pid : pid, 0);
errno = 0;
+#ifdef UNIXWARE
+ pctl.cmd = PCRUN;
+ pctl.data = PRCFAULT;
+#else
pi->prrun.pr_flags = PRSTRACE | PRSFAULT | PRCFAULT;
+#endif
#if 0
/* It should not be necessary. If the user explicitly changes the value,
value_assign calls write_register_bytes, which writes it. */
-/* It may not be absolutely necessary to specify the PC value for
- restarting, but to be safe we use the value that gdb considers
- to be current. One case where this might be necessary is if the
- user explicitly changes the PC value that gdb considers to be
- current. FIXME: Investigate if this is necessary or not. */
+/* It may not be absolutely necessary to specify the PC value for
+ restarting, but to be safe we use the value that gdb considers
+ to be current. One case where this might be necessary is if the
+ user explicitly changes the PC value that gdb considers to be
+ current. FIXME: Investigate if this is necessary or not. */
#ifdef PRSVADDR_BROKEN
/* Can't do this under Solaris running on a Sparc, as there seems to be no
random garbage. We have to rely on the fact that PC and nPC have been
written previously via PIOCSREG during a register flush. */
- pi->prrun.pr_vaddr = (caddr_t) *(int *) ®isters[REGISTER_BYTE (PC_REGNUM)];
+ pi->prrun.pr_vaddr = (caddr_t) * (int *) ®isters[REGISTER_BYTE (PC_REGNUM)];
pi->prrun.pr_flags != PRSVADDR;
#endif
#endif
an inferior to continue running at the same time as gdb. (FIXME?) */
signal_to_pass = 0;
else if (signo == TARGET_SIGNAL_TSTP
- && pi->prstatus.pr_cursig == SIGTSTP
- && pi->prstatus.pr_action.sa_handler == SIG_DFL)
+ && THE_PR_LWP (pi->prstatus).pr_cursig == SIGTSTP
+ && THE_PR_LWP (pi->prstatus).pr_action.sa_handler == SIG_DFL
+ )
/* We are about to pass the inferior a SIGTSTP whose action is
SIG_DFL. The SIG_DFL action for a SIGTSTP is to stop
}
else
{
+#ifdef UNIXWARE
+ pctl.data |= PRCSIG;
+#else
pi->prrun.pr_flags |= PRCSIG;
+#endif
}
pi->nopass_next_sigstop = 0;
if (step)
{
+#ifdef UNIXWARE
+ pctl.data |= PRSTEP;
+#else
pi->prrun.pr_flags |= PRSTEP;
+#endif
}
-
+ pi->had_event = 0;
/* Don't try to start a process unless it's stopped on an
`event of interest'. Doing so will cause errors. */
- if ((pi->prstatus.pr_flags & PR_ISTOP)
- && ioctl (pi->fd, PIOCRUN, &pi->prrun) != 0)
+ if (!procfs_read_status (pi))
{
- perror_with_name (pi->pathname);
- /* NOTREACHED */
+ /* The LWP has apparently terminated. */
+ if (info_verbose)
+ printf_filtered ("LWP %d doesn't respond.\n",
+ (pi->pid >> 16) & 0xffff);
+ close_proc_file (pi);
+ }
+ else
+ {
+#ifdef PROCFS_USE_READ_WRITE
+ if (write (pi->ctl_fd, (char *) &pctl, sizeof (struct proc_ctl)) < 0)
+#else
+ if ((pi->prstatus.pr_flags & PR_ISTOP)
+ && ioctl (pi->ctl_fd, PIOCRUN, &pi->prrun) != 0)
+#endif
+ {
+ /* The LWP has apparently terminated. */
+ if (info_verbose)
+ printf_filtered ("LWP %d doesn't respond.\n",
+ (pi->pid >> 16) & 0xffff);
+ close_proc_file (pi);
+ }
}
- pi->had_event = 0;
-
- /* Continue all the other threads that haven't had an event of
- interest. */
+ /* Continue all the other threads that haven't had an event of interest.
+ Also continue them if they have NOPASS_NEXT_SIGSTOP set; this is only
+ set by do_attach, and means this is the first resume after an attach.
+ All threads were CSTOP'd by do_attach, and should be resumed now. */
if (pid == -1)
- for (procinfo = procinfo_list; procinfo; procinfo = procinfo->next)
+ for (procinfo = procinfo_list; procinfo; procinfo = next_pi)
{
- if (pi != procinfo && !procinfo->had_event)
- {
- procinfo->prrun.pr_flags &= PRSTEP;
- procinfo->prrun.pr_flags |= PRCFAULT | PRCSIG;
- ioctl (procinfo->fd, PIOCSTATUS, &procinfo->prstatus);
+ next_pi = procinfo->next;
+ if (pi != procinfo)
+ if (!procinfo->had_event ||
+ (procinfo->nopass_next_sigstop && signo == TARGET_SIGNAL_STOP))
+ {
+ procinfo->had_event = procinfo->nopass_next_sigstop = 0;
+#ifdef PROCFS_USE_READ_WRITE
+ pctl.data = PRCFAULT | PRCSIG;
+ if (write (procinfo->ctl_fd, (char *) &pctl,
+ sizeof (struct proc_ctl)) < 0)
+ {
+ if (!procfs_read_status (procinfo))
+ fprintf_unfiltered (gdb_stderr,
+ "procfs_read_status failed, errno=%d\n",
+ errno);
+ print_sys_errmsg (procinfo->pathname, errno);
+ error ("PCRUN failed");
+ }
+#else
+ procinfo->prrun.pr_flags &= PRSTEP;
+ procinfo->prrun.pr_flags |= PRCFAULT | PRCSIG;
+ if (!procfs_read_status (procinfo))
+ {
+ /* The LWP has apparently terminated. */
+ if (info_verbose)
+ printf_filtered ("LWP %d doesn't respond.\n",
+ (procinfo->pid >> 16) & 0xffff);
+ close_proc_file (procinfo);
+ continue;
+ }
- /* Don't try to start a process unless it's stopped on an
- `event of interest'. Doing so will cause errors. */
+ /* Don't try to start a process unless it's stopped on an
+ `event of interest'. Doing so will cause errors. */
- if ((procinfo->prstatus.pr_flags & PR_ISTOP)
- && ioctl (procinfo->fd, PIOCRUN, &procinfo->prrun) < 0)
- {
- if (ioctl (procinfo->fd, PIOCSTATUS, &procinfo->prstatus) < 0)
- {
- fprintf_unfiltered(gdb_stderr, "PIOCSTATUS failed, errno=%d\n", errno);
- }
- print_sys_errmsg (procinfo->pathname, errno);
- error ("PIOCRUN failed");
- }
- ioctl (procinfo->fd, PIOCSTATUS, &procinfo->prstatus);
- }
+ if ((procinfo->prstatus.pr_flags & PR_ISTOP)
+ && ioctl (procinfo->ctl_fd, PIOCRUN, &procinfo->prrun) < 0)
+ {
+ if (!procfs_read_status (procinfo))
+ fprintf_unfiltered (gdb_stderr,
+ "procfs_read_status failed, errno=%d\n",
+ errno);
+ print_sys_errmsg (procinfo->pathname, errno);
+ warning ("PIOCRUN failed");
+ }
+#endif
+ }
+ procfs_read_status (procinfo);
}
}
/*
-LOCAL FUNCTION
+ LOCAL FUNCTION
- procfs_fetch_registers -- fetch current registers from inferior
+ procfs_fetch_registers -- fetch current registers from inferior
-SYNOPSIS
+ SYNOPSIS
- void procfs_fetch_registers (int regno)
+ void procfs_fetch_registers (int regno)
-DESCRIPTION
+ DESCRIPTION
- Read the current values of the inferior's registers, both the
- general register set and floating point registers (if supported)
- and update gdb's idea of their current values.
+ Read the current values of the inferior's registers, both the
+ general register set and floating point registers (if supported)
+ and update gdb's idea of their current values.
-*/
+ */
static void
procfs_fetch_registers (regno)
pi = current_procinfo;
- if (ioctl (pi->fd, PIOCGREG, &pi->gregset) != -1)
+#ifdef UNIXWARE
+ if (procfs_read_status (pi))
+ {
+ supply_gregset (&pi->prstatus.pr_lwp.pr_context.uc_mcontext.gregs);
+#if defined (FP0_REGNUM)
+ supply_fpregset (&pi->prstatus.pr_lwp.pr_context.uc_mcontext.fpregs);
+#endif
+ }
+#else /* UNIXWARE */
+ if (ioctl (pi->ctl_fd, PIOCGREG, &pi->gregset.gregset) != -1)
{
- supply_gregset (&pi->gregset);
+ supply_gregset (&pi->gregset.gregset);
}
#if defined (FP0_REGNUM)
- if (ioctl (pi->fd, PIOCGFPREG, &pi->fpregset) != -1)
+ if (ioctl (pi->ctl_fd, PIOCGFPREG, &pi->fpregset.fpregset) != -1)
{
- supply_fpregset (&pi->fpregset);
+ supply_fpregset (&pi->fpregset.fpregset);
}
#endif
+#endif /* UNIXWARE */
}
/*
-LOCAL FUNCTION
+ LOCAL FUNCTION
- proc_init_failed - called whenever /proc access initialization
-fails
+ proc_init_failed - called when /proc access initialization fails
+ fails
-SYNOPSIS
+ SYNOPSIS
- static void proc_init_failed (struct procinfo *pi, char *why)
+ static void proc_init_failed (struct procinfo *pi,
+ char *why, int kill_p)
-DESCRIPTION
+ DESCRIPTION
- This function is called whenever initialization of access to a /proc
- entry fails. It prints a suitable error message, does some cleanup,
- and then invokes the standard error processing routine which dumps
- us back into the command loop.
+ This function is called whenever initialization of access to a /proc
+ entry fails. It prints a suitable error message, does some cleanup,
+ and then invokes the standard error processing routine which dumps
+ us back into the command loop. If KILL_P is true, sends SIGKILL.
*/
static void
-proc_init_failed (pi, why)
+proc_init_failed (pi, why, kill_p)
struct procinfo *pi;
char *why;
+ int kill_p;
{
print_sys_errmsg (pi->pathname, errno);
- kill (pi->pid, SIGKILL);
+ if (kill_p)
+ kill (pi->pid, SIGKILL);
close_proc_file (pi);
error (why);
/* NOTREACHED */
/*
-LOCAL FUNCTION
+ LOCAL FUNCTION
- close_proc_file - close any currently open /proc entry
+ close_proc_file - close any currently open /proc entry
-SYNOPSIS
+ SYNOPSIS
- static void close_proc_file (struct procinfo *pip)
+ static void close_proc_file (struct procinfo *pip)
-DESCRIPTION
+ DESCRIPTION
- Close any currently open /proc entry and mark the process information
- entry as invalid. In order to ensure that we don't try to reuse any
- stale information, the pid, fd, and pathnames are explicitly
- invalidated, which may be overkill.
+ Close any currently open /proc entry and mark the process information
+ entry as invalid. In order to ensure that we don't try to reuse any
+ stale information, the pid, fd, and pathnames are explicitly
+ invalidated, which may be overkill.
*/
{
struct procinfo *procinfo;
+ delete_thread (pip->pid); /* remove thread from GDB's thread list */
remove_fd (pip); /* Remove fd from poll/select list */
- close (pip -> fd);
+ close (pip->ctl_fd);
+#ifdef HAVE_MULTIPLE_PROC_FDS
+ close (pip->as_fd);
+ close (pip->status_fd);
+ close (pip->map_fd);
+#endif
- free (pip -> pathname);
+ free (pip->pathname);
/* Unlink pip from the procinfo chain. Note pip might not be on the list. */
if (procinfo_list == pip)
procinfo_list = pip->next;
else
- for (procinfo = procinfo_list; procinfo; procinfo = procinfo->next)
- if (procinfo->next == pip)
- procinfo->next = pip->next;
+ {
+ for (procinfo = procinfo_list; procinfo; procinfo = procinfo->next)
+ {
+ if (procinfo->next == pip)
+ {
+ procinfo->next = pip->next;
+ break;
+ }
+ }
+ free (pip);
+ }
+}
+
+static void
+close_proc_file_cleanup (pip)
+ void *pip;
+{
+ close_proc_file ((struct procinfo *) pip);
+}
- free (pip);
+static struct cleanup *
+make_cleanup_close_proc_file (pip)
+ struct procinfo *pip;
+{
+ return make_cleanup (close_proc_file_cleanup, pip);
}
/*
-LOCAL FUNCTION
+ LOCAL FUNCTION
- open_proc_file - open a /proc entry for a given process id
+ open_proc_file - open a /proc entry for a given process id
-SYNOPSIS
+ SYNOPSIS
- static int open_proc_file (int pid, struct procinfo *pip, int mode)
+ static int open_proc_file (int pid, struct procinfo *pip, int mode)
-DESCRIPTION
+ DESCRIPTION
- Given a process id and a mode, close the existing open /proc
- entry (if any) and open one for the new process id, in the
- specified mode. Once it is open, then mark the local process
- information structure as valid, which guarantees that the pid,
- fd, and pathname fields match an open /proc entry. Returns
- zero if the open fails, nonzero otherwise.
+ Given a process id and a mode, close the existing open /proc
+ entry (if any) and open one for the new process id, in the
+ specified mode. Once it is open, then mark the local process
+ information structure as valid, which guarantees that the pid,
+ fd, and pathname fields match an open /proc entry. Returns
+ zero if the open fails, nonzero otherwise.
- Note that the pathname is left intact, even when the open fails,
- so that callers can use it to construct meaningful error messages
- rather than just "file open failed".
+ Note that the pathname is left intact, even when the open fails,
+ so that callers can use it to construct meaningful error messages
+ rather than just "file open failed".
- Note that for Solaris, the process-id also includes an LWP-id, so we
- actually attempt to open that. If we are handed a pid with a 0 LWP-id,
- then we will ask the kernel what it is and add it to the pid. Hence,
- the pid can be changed by us.
+ Note that for Solaris, the process-id also includes an LWP-id, so we
+ actually attempt to open that. If we are handed a pid with a 0 LWP-id,
+ then we will ask the kernel what it is and add it to the pid. Hence,
+ the pid can be changed by us.
*/
static int
-open_proc_file (pid, pip, mode)
+open_proc_file (pid, pip, mode, control)
int pid;
struct procinfo *pip;
int mode;
+ int control;
{
int tmp, tmpfd;
- pip -> next = NULL;
- pip -> had_event = 0;
- pip -> pathname = xmalloc (32);
- pip -> pid = pid;
+ pip->next = NULL;
+ pip->had_event = 0;
+ pip->pathname = xmalloc (MAX_PROC_NAME_SIZE);
+ pip->pid = pid;
#ifndef PIOCOPENLWP
tmp = pid;
tmp = pid & 0xffff;
#endif
- sprintf (pip -> pathname, PROC_NAME_FMT, tmp);
- if ((tmpfd = open (pip -> pathname, mode)) < 0)
+#ifdef HAVE_MULTIPLE_PROC_FDS
+ sprintf (pip->pathname, STATUS_PROC_NAME_FMT, tmp);
+ if ((pip->status_fd = open (pip->pathname, O_RDONLY)) < 0)
+ {
+ return 0;
+ }
+
+ sprintf (pip->pathname, AS_PROC_NAME_FMT, tmp);
+ if ((pip->as_fd = open (pip->pathname, O_RDWR)) < 0)
+ {
+ close (pip->status_fd);
+ return 0;
+ }
+
+ sprintf (pip->pathname, MAP_PROC_NAME_FMT, tmp);
+ if ((pip->map_fd = open (pip->pathname, O_RDONLY)) < 0)
+ {
+ close (pip->status_fd);
+ close (pip->as_fd);
+ return 0;
+ }
+
+ if (control)
+ {
+ sprintf (pip->pathname, CTL_PROC_NAME_FMT, tmp);
+ if ((pip->ctl_fd = open (pip->pathname, O_WRONLY)) < 0)
+ {
+ close (pip->status_fd);
+ close (pip->as_fd);
+ close (pip->map_fd);
+ return 0;
+ }
+ }
+
+#else /* HAVE_MULTIPLE_PROC_FDS */
+ sprintf (pip->pathname, CTL_PROC_NAME_FMT, tmp);
+
+ if ((tmpfd = open (pip->pathname, mode)) < 0)
return 0;
#ifndef PIOCOPENLWP
- pip -> fd = tmpfd;
+ pip->ctl_fd = tmpfd;
+ pip->as_fd = tmpfd;
+ pip->map_fd = tmpfd;
+ pip->status_fd = tmpfd;
#else
tmp = (pid >> 16) & 0xffff; /* Extract thread id */
if (tmp == 0)
{ /* Don't know thread id yet */
- if (ioctl (tmpfd, PIOCSTATUS, &pip -> prstatus) < 0)
+ if (ioctl (tmpfd, PIOCSTATUS, &pip->prstatus) < 0)
{
- print_sys_errmsg (pip -> pathname, errno);
+ print_sys_errmsg (pip->pathname, errno);
close (tmpfd);
error ("open_proc_file: PIOCSTATUS failed");
}
- tmp = pip -> prstatus.pr_who; /* Get thread id from prstatus_t */
- pip -> pid = (tmp << 16) | pid; /* Update pip */
+ tmp = pip->prstatus.pr_who; /* Get thread id from prstatus_t */
+ pip->pid = (tmp << 16) | pid; /* Update pip */
}
- if ((pip -> fd = ioctl (tmpfd, PIOCOPENLWP, &tmp)) < 0)
+ if ((pip->ctl_fd = ioctl (tmpfd, PIOCOPENLWP, &tmp)) < 0)
{
close (tmpfd);
return 0;
#ifdef PIOCSET /* New method */
{
- long pr_flags;
- pr_flags = PR_ASYNC;
- ioctl (pip -> fd, PIOCSET, &pr_flags);
+ long pr_flags;
+ pr_flags = PR_ASYNC;
+ ioctl (pip->ctl_fd, PIOCSET, &pr_flags);
}
#endif
+ /* keep extra fds in sync */
+ pip->as_fd = pip->ctl_fd;
+ pip->map_fd = pip->ctl_fd;
+ pip->status_fd = pip->ctl_fd;
+
close (tmpfd); /* All done with main pid */
-#endif /* PIOCOPENLWP */
+#endif /* PIOCOPENLWP */
+
+#endif /* HAVE_MULTIPLE_PROC_FDS */
return 1;
}
long flags;
{
static char asciiflags[8];
-
+
strcpy (asciiflags, "-------");
#if defined (MA_PHYS)
- if (flags & MA_PHYS) asciiflags[0] = 'd';
-#endif
- if (flags & MA_STACK) asciiflags[1] = 's';
- if (flags & MA_BREAK) asciiflags[2] = 'b';
- if (flags & MA_SHARED) asciiflags[3] = 's';
- if (flags & MA_READ) asciiflags[4] = 'r';
- if (flags & MA_WRITE) asciiflags[5] = 'w';
- if (flags & MA_EXEC) asciiflags[6] = 'x';
+ if (flags & MA_PHYS)
+ asciiflags[0] = 'd';
+#endif
+ if (flags & MA_STACK)
+ asciiflags[1] = 's';
+ if (flags & MA_BREAK)
+ asciiflags[2] = 'b';
+ if (flags & MA_SHARED)
+ asciiflags[3] = 's';
+ if (flags & MA_READ)
+ asciiflags[4] = 'r';
+ if (flags & MA_WRITE)
+ asciiflags[5] = 'w';
+ if (flags & MA_EXEC)
+ asciiflags[6] = 'x';
return (asciiflags);
}
int summary;
{
struct trans *transp;
+#ifdef UNIXWARE
+ long flags = pip->prstatus.pr_flags | pip->prstatus.pr_lwp.pr_flags;
+#else
+ long flags = pip->prstatus.pr_flags;
+#endif
printf_filtered ("%-32s", "Process status flags:");
if (!summary)
{
printf_filtered ("\n\n");
}
- for (transp = pr_flag_table; transp -> name != NULL; transp++)
+ for (transp = pr_flag_table; transp->name != NULL; transp++)
{
- if (pip -> prstatus.pr_flags & transp -> value)
+ if (flags & transp->value)
{
if (summary)
{
- printf_filtered ("%s ", transp -> name);
+ printf_filtered ("%s ", transp->name);
}
else
{
- printf_filtered ("\t%-16s %s.\n", transp -> name, transp -> desc);
+ printf_filtered ("\t%-16s %s.\n", transp->name, transp->desc);
}
}
}
int why;
int what;
- why = pip -> prstatus.pr_why;
- what = pip -> prstatus.pr_what;
+ why = THE_PR_LWP (pip->prstatus).pr_why;
+ what = THE_PR_LWP (pip->prstatus).pr_what;
- if (pip -> prstatus.pr_flags & PR_STOPPED)
+ if (THE_PR_LWP (pip->prstatus).pr_flags & PR_STOPPED)
{
printf_filtered ("%-32s", "Reason for stopping:");
if (!summary)
{
printf_filtered ("\n\n");
}
- for (transp = pr_why_table; transp -> name != NULL; transp++)
+ for (transp = pr_why_table; transp->name != NULL; transp++)
{
- if (why == transp -> value)
+ if (why == transp->value)
{
if (summary)
{
- printf_filtered ("%s ", transp -> name);
+ printf_filtered ("%s ", transp->name);
}
else
{
printf_filtered ("\t%-16s %s.\n",
- transp -> name, transp -> desc);
+ transp->name, transp->desc);
}
break;
}
}
-
+
/* Use the pr_why field to determine what the pr_what field means, and
- print more information. */
-
+ print more information. */
+
switch (why)
{
- case PR_REQUESTED:
- /* pr_what is unused for this case */
- break;
- case PR_JOBCONTROL:
- case PR_SIGNALLED:
- if (summary)
- {
- printf_filtered ("%s ", signalname (what));
- }
- else
- {
- printf_filtered ("\t%-16s %s.\n", signalname (what),
- safe_strsignal (what));
- }
- break;
- case PR_SYSENTRY:
- if (summary)
- {
- printf_filtered ("%s ", syscallname (what));
- }
- else
- {
- printf_filtered ("\t%-16s %s.\n", syscallname (what),
- "Entered this system call");
- }
- break;
- case PR_SYSEXIT:
- if (summary)
- {
- printf_filtered ("%s ", syscallname (what));
- }
- else
- {
- printf_filtered ("\t%-16s %s.\n", syscallname (what),
- "Returned from this system call");
- }
- break;
- case PR_FAULTED:
- if (summary)
- {
- printf_filtered ("%s ",
- lookupname (faults_table, what, "fault"));
- }
- else
- {
- printf_filtered ("\t%-16s %s.\n",
- lookupname (faults_table, what, "fault"),
- lookupdesc (faults_table, what));
- }
- break;
- }
+ case PR_REQUESTED:
+ /* pr_what is unused for this case */
+ break;
+ case PR_JOBCONTROL:
+ case PR_SIGNALLED:
+ if (summary)
+ {
+ printf_filtered ("%s ", signalname (what));
+ }
+ else
+ {
+ printf_filtered ("\t%-16s %s.\n", signalname (what),
+ safe_strsignal (what));
+ }
+ break;
+ case PR_SYSENTRY:
+ if (summary)
+ {
+ printf_filtered ("%s ", syscallname (what));
+ }
+ else
+ {
+ printf_filtered ("\t%-16s %s.\n", syscallname (what),
+ "Entered this system call");
+ }
+ break;
+ case PR_SYSEXIT:
+ if (summary)
+ {
+ printf_filtered ("%s ", syscallname (what));
+ }
+ else
+ {
+ printf_filtered ("\t%-16s %s.\n", syscallname (what),
+ "Returned from this system call");
+ }
+ break;
+ case PR_FAULTED:
+ if (summary)
+ {
+ printf_filtered ("%s ",
+ lookupname (faults_table, what, "fault"));
+ }
+ else
+ {
+ printf_filtered ("\t%-16s %s.\n",
+ lookupname (faults_table, what, "fault"),
+ lookupdesc (faults_table, what));
+ }
+ break;
+ }
printf_filtered ("\n");
}
}
{
struct siginfo *sip;
- if ((pip -> prstatus.pr_flags & PR_STOPPED) &&
- (pip -> prstatus.pr_why == PR_SIGNALLED ||
- pip -> prstatus.pr_why == PR_FAULTED))
+ if ((THE_PR_LWP (pip->prstatus).pr_flags & PR_STOPPED) &&
+ (THE_PR_LWP (pip->prstatus).pr_why == PR_SIGNALLED ||
+ THE_PR_LWP (pip->prstatus).pr_why == PR_FAULTED))
{
printf_filtered ("%-32s", "Additional signal/fault info:");
- sip = &pip -> prstatus.pr_info;
+ sip = &(THE_PR_LWP (pip->prstatus).pr_info);
if (summary)
{
- printf_filtered ("%s ", signalname (sip -> si_signo));
- if (sip -> si_errno > 0)
+ printf_filtered ("%s ", signalname (sip->si_signo));
+ if (sip->si_errno > 0)
{
- printf_filtered ("%s ", errnoname (sip -> si_errno));
+ printf_filtered ("%s ", errnoname (sip->si_errno));
}
- if (sip -> si_code <= 0)
+ if (sip->si_code <= 0)
{
printf_filtered ("sent by %s, uid %d ",
- target_pid_to_str (sip -> si_pid),
- sip -> si_uid);
+ target_pid_to_str (sip->si_pid),
+ sip->si_uid);
}
else
{
printf_filtered ("%s ", sigcodename (sip));
- if ((sip -> si_signo == SIGILL) ||
- (sip -> si_signo == SIGFPE) ||
- (sip -> si_signo == SIGSEGV) ||
- (sip -> si_signo == SIGBUS))
+ if ((sip->si_signo == SIGILL) ||
+ (sip->si_signo == SIGFPE) ||
+ (sip->si_signo == SIGSEGV) ||
+ (sip->si_signo == SIGBUS))
{
printf_filtered ("addr=%#lx ",
- (unsigned long) sip -> si_addr);
+ (unsigned long) sip->si_addr);
}
- else if ((sip -> si_signo == SIGCHLD))
+ else if ((sip->si_signo == SIGCHLD))
{
printf_filtered ("child %s, status %u ",
- target_pid_to_str (sip -> si_pid),
- sip -> si_status);
+ target_pid_to_str (sip->si_pid),
+ sip->si_status);
}
- else if ((sip -> si_signo == SIGPOLL))
+ else if ((sip->si_signo == SIGPOLL))
{
- printf_filtered ("band %u ", sip -> si_band);
+ printf_filtered ("band %u ", sip->si_band);
}
}
}
else
{
printf_filtered ("\n\n");
- printf_filtered ("\t%-16s %s.\n", signalname (sip -> si_signo),
- safe_strsignal (sip -> si_signo));
- if (sip -> si_errno > 0)
+ printf_filtered ("\t%-16s %s.\n", signalname (sip->si_signo),
+ safe_strsignal (sip->si_signo));
+ if (sip->si_errno > 0)
{
printf_filtered ("\t%-16s %s.\n",
- errnoname (sip -> si_errno),
- safe_strerror (sip -> si_errno));
+ errnoname (sip->si_errno),
+ safe_strerror (sip->si_errno));
}
- if (sip -> si_code <= 0)
+ if (sip->si_code <= 0)
{
- printf_filtered ("\t%-16u %s\n", sip -> si_pid, /* XXX need target_pid_to_str() */
+ printf_filtered ("\t%-16u %s\n", sip->si_pid, /* XXX need target_pid_to_str() */
"PID of process sending signal");
- printf_filtered ("\t%-16u %s\n", sip -> si_uid,
+ printf_filtered ("\t%-16u %s\n", sip->si_uid,
"UID of process sending signal");
}
else
{
printf_filtered ("\t%-16s %s.\n", sigcodename (sip),
sigcodedesc (sip));
- if ((sip -> si_signo == SIGILL) ||
- (sip -> si_signo == SIGFPE))
+ if ((sip->si_signo == SIGILL) ||
+ (sip->si_signo == SIGFPE))
{
printf_filtered ("\t%#-16lx %s.\n",
- (unsigned long) sip -> si_addr,
+ (unsigned long) sip->si_addr,
"Address of faulting instruction");
}
- else if ((sip -> si_signo == SIGSEGV) ||
- (sip -> si_signo == SIGBUS))
+ else if ((sip->si_signo == SIGSEGV) ||
+ (sip->si_signo == SIGBUS))
{
printf_filtered ("\t%#-16lx %s.\n",
- (unsigned long) sip -> si_addr,
+ (unsigned long) sip->si_addr,
"Address of faulting memory reference");
}
- else if ((sip -> si_signo == SIGCHLD))
+ else if ((sip->si_signo == SIGCHLD))
{
- printf_filtered ("\t%-16u %s.\n", sip -> si_pid, /* XXX need target_pid_to_str() */
+ printf_filtered ("\t%-16u %s.\n", sip->si_pid, /* XXX need target_pid_to_str() */
"Child process ID");
- printf_filtered ("\t%-16u %s.\n", sip -> si_status,
+ printf_filtered ("\t%-16u %s.\n", sip->si_status,
"Child process exit value or signal");
}
- else if ((sip -> si_signo == SIGPOLL))
+ else if ((sip->si_signo == SIGPOLL))
{
- printf_filtered ("\t%-16u %s.\n", sip -> si_band,
+ printf_filtered ("\t%-16u %s.\n", sip->si_band,
"Band event for POLL_{IN,OUT,MSG}");
}
}
if (!summary)
{
-#if 0 /* FIXME: Needs to use gdb-wide configured info about system calls. */
- if (pip -> prstatus.pr_flags & PR_ASLEEP)
+#if 0 /* FIXME: Needs to use gdb-wide configured info about system calls. */
+ if (pip->prstatus.pr_flags & PR_ASLEEP)
{
- int syscallnum = pip -> prstatus.pr_reg[R_D0];
+ int syscallnum = pip->prstatus.pr_reg[R_D0];
if (summary)
{
printf_filtered ("%-32s", "Sleeping in system call:");
}
#endif
- if (ioctl (pip -> fd, PIOCGENTRY, &pip -> entryset) < 0)
+#ifndef UNIXWARE
+ if (ioctl (pip->ctl_fd, PIOCGENTRY, &pip->entryset) < 0)
{
- print_sys_errmsg (pip -> pathname, errno);
+ print_sys_errmsg (pip->pathname, errno);
error ("PIOCGENTRY failed");
}
-
- if (ioctl (pip -> fd, PIOCGEXIT, &pip -> exitset) < 0)
+
+ if (ioctl (pip->ctl_fd, PIOCGEXIT, &pip->exitset) < 0)
{
- print_sys_errmsg (pip -> pathname, errno);
+ print_sys_errmsg (pip->pathname, errno);
error ("PIOCGEXIT failed");
}
-
+#endif
+
printf_filtered ("System call tracing information:\n\n");
-
+
printf_filtered ("\t%-12s %-8s %-8s\n",
"System call",
"Entry",
else
printf_filtered ("\t%-12d ", syscallnum);
+#ifdef UNIXWARE
+ printf_filtered ("%-8s ",
+ prismember (&pip->prstatus.pr_sysentry, syscallnum)
+ ? "on" : "off");
printf_filtered ("%-8s ",
- prismember (&pip -> entryset, syscallnum)
+ prismember (&pip->prstatus.pr_sysexit, syscallnum)
+ ? "on" : "off");
+#else
+ printf_filtered ("%-8s ",
+ prismember (&pip->entryset, syscallnum)
? "on" : "off");
printf_filtered ("%-8s ",
- prismember (&pip -> exitset, syscallnum)
+ prismember (&pip->exitset, syscallnum)
? "on" : "off");
+#endif
printf_filtered ("\n");
}
printf_filtered ("\n");
if (!summary)
{
- if (ioctl (pip -> fd, PIOCGTRACE, &pip -> trace) < 0)
+#ifndef PROCFS_USE_READ_WRITE
+ if (ioctl (pip->ctl_fd, PIOCGTRACE, &pip->trace) < 0)
{
- print_sys_errmsg (pip -> pathname, errno);
+ print_sys_errmsg (pip->pathname, errno);
error ("PIOCGTRACE failed");
}
-
+#endif
+
printf_filtered ("Disposition of signals:\n\n");
printf_filtered ("\t%-15s %-8s %-8s %-8s %s\n\n",
"Signal", "Trace", "Hold", "Pending", "Description");
{
QUIT;
printf_filtered ("\t%-15s ", signalname (signo));
+#ifdef UNIXWARE
+ printf_filtered ("%-8s ",
+ prismember (&pip->prstatus.pr_sigtrace, signo)
+ ? "on" : "off");
printf_filtered ("%-8s ",
- prismember (&pip -> trace, signo)
+ prismember (&pip->prstatus.pr_lwp.pr_context.uc_sigmask, signo)
+ ? "on" : "off");
+#else
+ printf_filtered ("%-8s ",
+ prismember (&pip->trace, signo)
? "on" : "off");
printf_filtered ("%-8s ",
- prismember (&pip -> prstatus.pr_sighold, signo)
+ prismember (&pip->prstatus.pr_sighold, signo)
? "on" : "off");
+#endif
+#ifdef UNIXWARE
+ if (prismember (&pip->prstatus.pr_sigpend, signo) ||
+ prismember (&pip->prstatus.pr_lwp.pr_lwppend, signo))
+ printf_filtered ("%-8s ", "yes");
+ else
+ printf_filtered ("%-8s ", "no");
+#else /* UNIXWARE */
#ifdef PROCFS_SIGPEND_OFFSET
/* Alpha OSF/1 numbers the pending signals from 1. */
printf_filtered ("%-8s ",
- (signo ? prismember (&pip -> prstatus.pr_sigpend,
+ (signo ? prismember (&pip->prstatus.pr_sigpend,
signo - 1)
- : 0)
+ : 0)
? "yes" : "no");
#else
printf_filtered ("%-8s ",
- prismember (&pip -> prstatus.pr_sigpend, signo)
+ prismember (&pip->prstatus.pr_sigpend, signo)
? "yes" : "no");
#endif
+#endif /* UNIXWARE */
printf_filtered (" %s\n", safe_strsignal (signo));
}
printf_filtered ("\n");
if (!summary)
{
- if (ioctl (pip -> fd, PIOCGFAULT, &pip -> fltset) < 0)
+#ifndef UNIXWARE
+ if (ioctl (pip->ctl_fd, PIOCGFAULT, &pip->fltset.fltset) < 0)
{
- print_sys_errmsg (pip -> pathname, errno);
+ print_sys_errmsg (pip->pathname, errno);
error ("PIOCGFAULT failed");
}
-
+#endif
+
printf_filtered ("Current traced hardware fault set:\n\n");
printf_filtered ("\t%-12s %-8s\n", "Fault", "Trace");
- for (transp = faults_table; transp -> name != NULL; transp++)
+ for (transp = faults_table; transp->name != NULL; transp++)
{
QUIT;
- printf_filtered ("\t%-12s ", transp -> name);
- printf_filtered ("%-8s", prismember (&pip -> fltset, transp -> value)
+ printf_filtered ("\t%-12s ", transp->name);
+#ifdef UNIXWARE
+ printf_filtered ("%-8s", prismember (&pip->prstatus.pr_flttrace, transp->value)
+ ? "on" : "off");
+#else
+ printf_filtered ("%-8s", prismember (&pip->fltset.fltset, transp->value)
? "on" : "off");
+#endif
printf_filtered ("\n");
}
printf_filtered ("\n");
int nmap;
struct prmap *prmaps;
struct prmap *prmap;
+#ifdef PROCFS_USE_READ_WRITE
+ struct stat sbuf;
+#endif
if (!summary)
{
" Size",
" Offset",
"Flags");
- if (ioctl (pip -> fd, PIOCNMAP, &nmap) == 0)
+#ifdef PROCFS_USE_READ_WRITE
+ if (fstat (pip->map_fd, &sbuf) == 0)
+ {
+ nmap = sbuf.st_size / sizeof (prmap_t);
+ prmaps = (struct prmap *) alloca ((nmap + 1) * sizeof (*prmaps));
+ if ((lseek (pip->map_fd, 0, SEEK_SET) == 0) &&
+ (read (pip->map_fd, (char *) prmaps,
+ nmap * sizeof (*prmaps)) == (nmap * sizeof (*prmaps))))
+ {
+ int i = 0;
+ for (prmap = prmaps; i < nmap; ++prmap, ++i)
+#else
+ if (ioctl (pip->ctl_fd, PIOCNMAP, &nmap) == 0)
{
prmaps = (struct prmap *) alloca ((nmap + 1) * sizeof (*prmaps));
- if (ioctl (pip -> fd, PIOCMAP, prmaps) == 0)
+ if (ioctl (pip->ctl_fd, PIOCMAP, prmaps) == 0)
{
- for (prmap = prmaps; prmap -> pr_size; ++prmap)
+ for (prmap = prmaps; prmap->pr_size; ++prmap)
+#endif /* PROCFS_USE_READ_WRITE */
{
#ifdef BFD_HOST_64_BIT
printf_filtered (" %#18lx %#18lx %#10x %#10x %7s\n",
#else
printf_filtered ("\t%#10lx %#10lx %#10x %#10x %7s\n",
#endif
- (unsigned long)prmap -> pr_vaddr,
- (unsigned long)prmap -> pr_vaddr
- + prmap -> pr_size - 1,
- prmap -> pr_size,
- prmap -> pr_off,
- mappingflags (prmap -> pr_mflags));
+ (unsigned long) prmap->pr_vaddr,
+ (unsigned long) prmap->pr_vaddr
+ + prmap->pr_size - 1,
+ prmap->pr_size,
+ prmap->pr_off,
+ mappingflags (prmap->pr_mflags));
}
}
}
/*
-LOCAL FUNCTION
+ LOCAL FUNCTION
- info_proc -- implement the "info proc" command
+ info_proc -- implement the "info proc" command
-SYNOPSIS
+ SYNOPSIS
- void info_proc (char *args, int from_tty)
+ void info_proc (char *args, int from_tty)
-DESCRIPTION
+ DESCRIPTION
- Implement gdb's "info proc" command by using the /proc interface
- to print status information about any currently running process.
+ Implement gdb's "info proc" command by using the /proc interface
+ to print status information about any currently running process.
- Examples of the use of "info proc" are:
+ Examples of the use of "info proc" are:
- info proc (prints summary info for current inferior)
- info proc 123 (prints summary info for process with pid 123)
- info proc mappings (prints address mappings)
- info proc times (prints process/children times)
- info proc id (prints pid, ppid, gid, sid, etc)
- FIXME: i proc id not implemented.
- info proc status (prints general process state info)
- FIXME: i proc status not implemented.
- info proc signals (prints info about signal handling)
- info proc all (prints all info)
+ info proc (prints summary info for current inferior)
+ info proc 123 (prints summary info for process with pid 123)
+ info proc mappings (prints address mappings)
+ info proc times (prints process/children times)
+ info proc id (prints pid, ppid, gid, sid, etc)
+ FIXME: i proc id not implemented.
+ info proc status (prints general process state info)
+ FIXME: i proc status not implemented.
+ info proc signals (prints info about signal handling)
+ info proc all (prints all info)
*/
char *args;
int from_tty;
{
- int pid = inferior_pid;
+ int pid;
struct procinfo *pip;
struct cleanup *old_chain;
char **argv;
/* Default to using the current inferior if no pid specified. Note
that inferior_pid may be 0, hence we set okerr. */
- pip = find_procinfo (inferior_pid, 1);
+ pid = inferior_pid & 0x7fffffff; /* strip off sol-thread bit */
+ if (!(pip = find_procinfo (pid, 1))) /* inferior_pid no good? */
+ pip = procinfo_list; /* take first available */
+ pid = pid & 0xffff; /* extract "real" pid */
if (args != NULL)
{
{
nomem (0);
}
- make_cleanup (freeargv, (char *) argv);
+ make_cleanup_freeargv (argv);
while (*argv != NULL)
{
memset (pip, 0, sizeof (*pip));
pip->pid = pid;
- if (!open_proc_file (pid, pip, O_RDONLY))
+ if (!open_proc_file (pid, pip, O_RDONLY, 0))
{
- perror_with_name (pip -> pathname);
+ perror_with_name (pip->pathname);
/* NOTREACHED */
}
pid = pip->pid;
- make_cleanup (close_proc_file, pip);
+ make_cleanup_close_proc_file (pip);
}
else if (**argv != '\000')
{
error ("\
No process. Start debugging a program or specify an explicit process ID.");
}
- if (ioctl (pip -> fd, PIOCSTATUS, &(pip -> prstatus)) < 0)
+
+ if (!procfs_read_status (pip))
{
- print_sys_errmsg (pip -> pathname, errno);
- error ("PIOCSTATUS failed");
+ print_sys_errmsg (pip->pathname, errno);
+ error ("procfs_read_status failed");
}
+#ifndef PROCFS_USE_READ_WRITE
#ifdef PIOCLWPIDS
nlwp = pip->prstatus.pr_nlwp;
- lwps = alloca ((2 * nlwp + 2) * sizeof (id_t));
+ lwps = alloca ((2 * nlwp + 2) * sizeof (*lwps));
- if (ioctl (pip->fd, PIOCLWPIDS, lwps))
+ if (ioctl (pip->ctl_fd, PIOCLWPIDS, lwps))
{
- print_sys_errmsg (pip -> pathname, errno);
- error ("PIOCSTATUS failed");
+ print_sys_errmsg (pip->pathname, errno);
+ error ("PIOCLWPIDS failed");
}
#else /* PIOCLWPIDS */
nlwp = 1;
{
pip = (struct procinfo *) xmalloc (sizeof (struct procinfo));
memset (pip, 0, sizeof (*pip));
- if (!open_proc_file ((*lwps << 16) | pid, pip, O_RDONLY))
+ if (!open_proc_file ((*lwps << 16) | pid, pip, O_RDONLY, 0))
continue;
- make_cleanup (close_proc_file, pip);
+ make_cleanup_close_proc_file (pip);
- if (ioctl (pip -> fd, PIOCSTATUS, &(pip -> prstatus)) < 0)
+ if (!procfs_read_status (pip))
{
- print_sys_errmsg (pip -> pathname, errno);
- error ("PIOCSTATUS failed");
+ print_sys_errmsg (pip->pathname, errno);
+ error ("procfs_read_status failed");
}
}
+#endif /* PROCFS_USE_READ_WRITE */
+
/* Print verbose information of the requested type(s), or just a summary
- of the information for all types. */
+ of the information for all types. */
- printf_filtered ("\nInformation for %s.%d:\n\n", pip -> pathname, *lwps);
+ printf_filtered ("\nInformation for %s.%d:\n\n", pip->pathname, *lwps);
if (summary || all || flags)
{
info_proc_flags (pip, summary);
if (summary || all)
{
info_proc_stop (pip, summary);
+#ifdef UNIXWARE
+ supply_gregset (&pip->prstatus.pr_lwp.pr_context.uc_mcontext.gregs);
+#else
+ supply_gregset (&pip->prstatus.pr_reg);
+#endif
+ printf_filtered ("PC: ");
+ print_address (read_pc (), gdb_stdout);
+ printf_filtered ("\n");
}
if (summary || all || signals || faults)
{
printf_filtered ("\n");
/* All done, deal with closing any temporary process info structure,
- freeing temporary memory , etc. */
+ freeing temporary memory , etc. */
do_cleanups (old_chain);
+#ifndef PROCFS_USE_READ_WRITE
}
+#endif
}
/*
-LOCAL FUNCTION
+ LOCAL FUNCTION
- modify_inherit_on_fork_flag - Change the inherit-on-fork flag
+ modify_inherit_on_fork_flag - Change the inherit-on-fork flag
-SYNOPSIS
+ SYNOPSIS
- void modify_inherit_on_fork_flag (fd, flag)
+ void modify_inherit_on_fork_flag (fd, flag)
-DESCRIPTION
+ DESCRIPTION
- Call this routine to modify the inherit-on-fork flag. This routine is
- just a nice wrapper to hide the #ifdefs needed by various systems to
- control this flag.
+ Call this routine to modify the inherit-on-fork flag. This routine is
+ just a nice wrapper to hide the #ifdefs needed by various systems to
+ control this flag.
*/
int fd;
int flag;
{
+#if defined (PIOCSET) || defined (PCSET)
long pr_flags;
- int retval;
+#endif
+ int retval = 0;
+#ifdef PROCFS_USE_READ_WRITE
+ struct proc_ctl pctl;
+#endif
-#ifdef PIOCSET /* New method */
+#if defined (PIOCSET) || defined (PCSET) /* New method */
pr_flags = PR_FORK;
if (flag)
- retval = ioctl (fd, PIOCSET, &pr_flags);
+ {
+#ifdef PROCFS_USE_READ_WRITE
+ pctl.cmd = PCSET;
+ pctl.data = PR_FORK;
+ if (write (fd, (char *) &pctl, sizeof (struct proc_ctl)) < 0)
+ retval = -1;
+#else
+ retval = ioctl (fd, PIOCSET, &pr_flags);
+#endif
+ }
else
- retval = ioctl (fd, PIOCRESET, &pr_flags);
+ {
+#ifdef PROCFS_USE_READ_WRITE
+ pctl.cmd = PCRESET;
+ pctl.data = PR_FORK;
+ if (write (fd, (char *) &pctl, sizeof (struct proc_ctl)) < 0)
+ retval = -1;
+#else
+ retval = ioctl (fd, PIOCRESET, &pr_flags);
+#endif
+ }
#else
#ifdef PIOCSFORK /* Original method */
if (flag)
- retval = ioctl (fd, PIOCSFORK, NULL);
+ {
+ retval = ioctl (fd, PIOCSFORK, NULL);
+ }
else
- retval = ioctl (fd, PIOCRFORK, NULL);
+ {
+ retval = ioctl (fd, PIOCRFORK, NULL);
+ }
#else
- Neither PR_FORK nor PIOCSFORK exist!!!
+ Neither PR_FORK nor PIOCSFORK exist ! !!
#endif
#endif
if (!retval)
- return;
+ return;
print_sys_errmsg ("modify_inherit_on_fork_flag", errno);
error ("PIOCSFORK or PR_FORK modification failed");
/*
-LOCAL FUNCTION
+ LOCAL FUNCTION
- modify_run_on_last_close_flag - Change the run-on-last-close flag
+ modify_run_on_last_close_flag - Change the run-on-last-close flag
-SYNOPSIS
+ SYNOPSIS
- void modify_run_on_last_close_flag (fd, flag)
+ void modify_run_on_last_close_flag (fd, flag)
-DESCRIPTION
+ DESCRIPTION
- Call this routine to modify the run-on-last-close flag. This routine
- is just a nice wrapper to hide the #ifdefs needed by various systems to
- control this flag.
+ Call this routine to modify the run-on-last-close flag. This routine
+ is just a nice wrapper to hide the #ifdefs needed by various systems to
+ control this flag.
*/
int fd;
int flag;
{
+#if defined (PIOCSET) || defined (PCSET)
long pr_flags;
- int retval;
+#endif
+ int retval = 0;
+#ifdef PROCFS_USE_READ_WRITE
+ struct proc_ctl pctl;
+#endif
-#ifdef PIOCSET /* New method */
+#if defined (PIOCSET) || defined (PCSET) /* New method */
pr_flags = PR_RLC;
if (flag)
- retval = ioctl (fd, PIOCSET, &pr_flags);
+ {
+#ifdef PROCFS_USE_READ_WRITE
+ pctl.cmd = PCSET;
+ pctl.data = PR_RLC;
+ if (write (fd, (char *) &pctl, sizeof (struct proc_ctl)) < 0)
+ retval = -1;
+#else
+ retval = ioctl (fd, PIOCSET, &pr_flags);
+#endif
+ }
else
- retval = ioctl (fd, PIOCRESET, &pr_flags);
+ {
+#ifdef PROCFS_USE_READ_WRITE
+ pctl.cmd = PCRESET;
+ pctl.data = PR_RLC;
+ if (write (fd, (char *) &pctl, sizeof (struct proc_ctl)) < 0)
+ retval = -1;
+#else
+ retval = ioctl (fd, PIOCRESET, &pr_flags);
+#endif
+ }
#else
#ifdef PIOCSRLC /* Original method */
else
retval = ioctl (fd, PIOCRRLC, NULL);
#else
- Neither PR_RLC nor PIOCSRLC exist!!!
+ Neither PR_RLC nor PIOCSRLC exist ! !!
#endif
#endif
if (!retval)
- return;
+ return;
print_sys_errmsg ("modify_run_on_last_close_flag", errno);
error ("PIOCSRLC or PR_RLC modification failed");
/*
-LOCAL FUNCTION
+ LOCAL FUNCTION
- procfs_clear_syscall_trap -- Deletes the trap for the specified system call.
+ procfs_clear_syscall_trap -- Deletes the trap for the specified system call.
-SYNOPSIS
+ SYNOPSIS
- void procfs_clear_syscall_trap (struct procinfo *, int syscall_num, int errok)
+ void procfs_clear_syscall_trap (struct procinfo *, int syscall_num, int errok)
-DESCRIPTION
+ DESCRIPTION
- This function function disables traps for the specified system call.
- errok is non-zero if errors should be ignored.
+ This function function disables traps for the specified system call.
+ errok is non-zero if errors should be ignored.
*/
static void
{
sysset_t sysset;
int goterr, i;
-
- goterr = ioctl (pi->fd, PIOCGENTRY, &sysset) < 0;
+
+#ifndef UNIXWARE
+ goterr = ioctl (pi->ctl_fd, PIOCGENTRY, &sysset) < 0;
if (goterr && !errok)
{
{
prdelset (&sysset, syscall_num);
- if ((ioctl (pi->fd, PIOCSENTRY, &sysset) < 0) && !errok)
+ if ((ioctl (pi->ctl_fd, PIOCSENTRY, &sysset) < 0) && !errok)
{
print_sys_errmsg (pi->pathname, errno);
error ("PIOCSENTRY failed");
}
}
- goterr = ioctl (pi->fd, PIOCGEXIT, &sysset) < 0;
+ goterr = ioctl (pi->ctl_fd, PIOCGEXIT, &sysset) < 0;
if (goterr && !errok)
{
{
praddset (&sysset, syscall_num);
- if ((ioctl (pi->fd, PIOCSEXIT, &sysset) < 0) && !errok)
+ if ((ioctl (pi->ctl_fd, PIOCSEXIT, &sysset) < 0) && !errok)
{
procfs_clear_syscall_trap (pi, syscall_num, 1);
print_sys_errmsg (pi->pathname, errno);
error ("PIOCSEXIT failed");
}
}
+#endif
if (!pi->syscall_handlers)
{
pi->syscall_handlers = xrealloc (pi->syscall_handlers,
(pi->num_syscall_handlers - 1)
- * sizeof (struct procfs_syscall_handler));
+ * sizeof (struct procfs_syscall_handler));
pi->num_syscall_handlers--;
return;
}
/*
-LOCAL FUNCTION
+ LOCAL FUNCTION
- procfs_set_syscall_trap -- arrange for a function to be called when the
- child executes the specified system call.
+ procfs_set_syscall_trap -- arrange for a function to be called when the
+ child executes the specified system call.
-SYNOPSIS
+ SYNOPSIS
- void procfs_set_syscall_trap (struct procinfo *, int syscall_num, int flags,
- syscall_func_t *function)
+ void procfs_set_syscall_trap (struct procinfo *, int syscall_num, int flags,
+ syscall_func_t *function)
-DESCRIPTION
+ DESCRIPTION
- This function sets up an entry and/or exit trap for the specified system
- call. When the child executes the specified system call, your function
- will be called with the call #, a flag that indicates entry or exit, and
- pointers to rtnval and statval (which are used by procfs_wait). The
- function should return non-zero if something interesting happened, zero
- otherwise.
+ This function sets up an entry and/or exit trap for the specified system
+ call. When the child executes the specified system call, your function
+ will be called with the call #, a flag that indicates entry or exit, and
+ pointers to rtnval and statval (which are used by procfs_wait). The
+ function should return non-zero if something interesting happened, zero
+ otherwise.
*/
static void
syscall_func_t *func;
{
sysset_t sysset;
-
+
+#ifndef UNIXWARE
if (flags & PROCFS_SYSCALL_ENTRY)
{
- if (ioctl (pi->fd, PIOCGENTRY, &sysset) < 0)
+ if (ioctl (pi->ctl_fd, PIOCGENTRY, &sysset) < 0)
{
print_sys_errmsg (pi->pathname, errno);
error ("PIOCGENTRY failed");
praddset (&sysset, syscall_num);
- if (ioctl (pi->fd, PIOCSENTRY, &sysset) < 0)
+ if (ioctl (pi->ctl_fd, PIOCSENTRY, &sysset) < 0)
{
print_sys_errmsg (pi->pathname, errno);
error ("PIOCSENTRY failed");
if (flags & PROCFS_SYSCALL_EXIT)
{
- if (ioctl (pi->fd, PIOCGEXIT, &sysset) < 0)
+ if (ioctl (pi->ctl_fd, PIOCGEXIT, &sysset) < 0)
{
procfs_clear_syscall_trap (pi, syscall_num, 1);
print_sys_errmsg (pi->pathname, errno);
praddset (&sysset, syscall_num);
- if (ioctl (pi->fd, PIOCSEXIT, &sysset) < 0)
+ if (ioctl (pi->ctl_fd, PIOCSEXIT, &sysset) < 0)
{
procfs_clear_syscall_trap (pi, syscall_num, 1);
print_sys_errmsg (pi->pathname, errno);
error ("PIOCSEXIT failed");
}
}
+#endif
if (!pi->syscall_handlers)
{
}
pi->syscall_handlers = xrealloc (pi->syscall_handlers, (i + 1)
- * sizeof (struct procfs_syscall_handler));
+ * sizeof (struct procfs_syscall_handler));
pi->syscall_handlers[i].syscall_num = syscall_num;
pi->syscall_handlers[i].func = func;
pi->num_syscall_handlers++;
/*
-LOCAL FUNCTION
+ LOCAL FUNCTION
- procfs_lwp_creation_handler - handle exit from the _lwp_create syscall
+ procfs_lwp_creation_handler - handle exit from the _lwp_create syscall
-SYNOPSIS
+ SYNOPSIS
- int procfs_lwp_creation_handler (pi, syscall_num, why, rtnvalp, statvalp)
+ int procfs_lwp_creation_handler (pi, syscall_num, why, rtnvalp, statvalp)
-DESCRIPTION
+ DESCRIPTION
- This routine is called both when an inferior process and it's new lwp
- are about to finish a _lwp_create() system call. This is the system
- call that Solaris uses to create a lightweight process. When the
- target process gets this event, we can look at sysarg[2] to find the
- new childs lwp ID, and create a procinfo struct from that. After that,
- we pretend that we got a SIGTRAP, and return non-zero to tell
- procfs_wait to wake up. Subsequently, wait_for_inferior gets woken up,
- sees the new process and continues it.
+ This routine is called both when an inferior process and it's new lwp
+ are about to finish a _lwp_create() system call. This is the system
+ call that Solaris uses to create a lightweight process. When the
+ target process gets this event, we can look at sysarg[2] to find the
+ new childs lwp ID, and create a procinfo struct from that. After that,
+ we pretend that we got a SIGTRAP, and return non-zero to tell
+ procfs_wait to wake up. Subsequently, wait_for_inferior gets woken up,
+ sees the new process and continues it.
- When we see the child exiting from lwp_create, we just contine it,
- since everything was handled when the parent trapped.
+ When we see the child exiting from lwp_create, we just contine it,
+ since everything was handled when the parent trapped.
-NOTES
- In effect, we are only paying attention to the parent's completion of
- the lwp_create syscall. If we only paid attention to the child
- instead, then we wouldn't detect the creation of a suspended thread.
+ NOTES
+ In effect, we are only paying attention to the parent's completion of
+ the lwp_create syscall. If we only paid attention to the child
+ instead, then we wouldn't detect the creation of a suspended thread.
*/
static int
{
int lwp_id;
struct procinfo *childpi;
+#ifdef UNIXWARE
+ struct proc_ctl pctl;
+#endif
/* We've just detected the completion of an lwp_create system call. Now we
need to setup a procinfo struct for this thread, and notify the thread
/* If lwp_create failed, then nothing interesting happened. Continue the
process and go back to sleep. */
- if (pi->prstatus.pr_reg[R_PSR] & PS_FLAG_CARRY)
+#ifdef UNIXWARE
+ /* Joel ... can you check this logic out please? JKJ */
+ if (pi->prstatus.pr_lwp.pr_context.uc_mcontext.gregs[R_EFL] & 1)
+ { /* _lwp_create failed */
+ pctl.cmd = PCRUN;
+ pctl.data = PRCFAULT;
+
+ if (write (pi->ctl_fd, (char *) &pctl, sizeof (struct proc_ctl)) < 0)
+ perror_with_name (pi->pathname);
+
+ return 0;
+ }
+#else /* UNIXWARE */
+ if (PROCFS_GET_CARRY (pi->prstatus.pr_reg))
{ /* _lwp_create failed */
pi->prrun.pr_flags &= PRSTEP;
pi->prrun.pr_flags |= PRCFAULT;
- if (ioctl (pi->fd, PIOCRUN, &pi->prrun) != 0)
+ if (ioctl (pi->ctl_fd, PIOCRUN, &pi->prrun) != 0)
perror_with_name (pi->pathname);
return 0;
}
+#endif
/* At this point, the new thread is stopped at it's first instruction, and
the parent is stopped at the exit from lwp_create. */
if (pi->new_child) /* Child? */
{ /* Yes, just continue it */
+#ifdef UNIXWARE
+ pctl.cmd = PCRUN;
+ pctl.data = PRCFAULT;
+
+ if (write (pi->ctl_fd, (char *) &pctl, sizeof (struct proc_ctl)) < 0)
+#else /* !UNIXWARE */
pi->prrun.pr_flags &= PRSTEP;
pi->prrun.pr_flags |= PRCFAULT;
if ((pi->prstatus.pr_flags & PR_ISTOP)
- && ioctl (pi->fd, PIOCRUN, &pi->prrun) != 0)
+ && ioctl (pi->ctl_fd, PIOCRUN, &pi->prrun) != 0)
+#endif /* !UNIXWARE */
perror_with_name (pi->pathname);
pi->new_child = 0; /* No longer new */
/* We're the proud parent of a new thread. Setup an exit trap for lwp_create
in the child and continue the parent. */
-
+
/* Third arg is pointer to new thread id. */
- lwp_id = read_memory_integer (pi->prstatus.pr_sysarg[2], sizeof (int));
+ lwp_id = read_memory_integer (
+ THE_PR_LWP (pi->prstatus).pr_sysarg[2], sizeof (int));
lwp_id = (lwp_id << 16) | PIDGET (pi->pid);
childpi = create_procinfo (lwp_id);
/* The new process has actually inherited the lwp_create syscall trap from
- it's parent, but we still have to call this to register a handler for
+ it's parent, but we still have to call this to register handlers for
that child. */
- procfs_set_syscall_trap (childpi, SYS_lwp_create, PROCFS_SYSCALL_EXIT,
- procfs_lwp_creation_handler);
+ procfs_set_inferior_syscall_traps (childpi);
+ add_thread (lwp_id);
+ printf_filtered ("[New %s]\n", target_pid_to_str (lwp_id));
- childpi->new_child = 1; /* Flag this as an unseen child process */
+ /* Continue the parent */
+#ifdef UNIXWARE
+ pctl.cmd = PCRUN;
+ pctl.data = PRCFAULT;
- *rtnvalp = lwp_id; /* the new arrival. */
- *statvalp = (SIGTRAP << 8) | 0177;
+ if (write (pi->ctl_fd, (char *) &pctl, sizeof (struct proc_ctl)) < 0)
+#else
+ pi->prrun.pr_flags &= PRSTEP;
+ pi->prrun.pr_flags |= PRCFAULT;
+ if (ioctl (pi->ctl_fd, PIOCRUN, &pi->prrun) != 0)
+#endif
+ perror_with_name (pi->pathname);
- return 1;
+ /* The new child may have been created in one of two states:
+ SUSPENDED or RUNNABLE. If runnable, we will simply signal it to run.
+ If suspended, we flag it to be continued later, when it has an event. */
+
+ if (THE_PR_LWP (childpi->prstatus).pr_why == PR_SUSPENDED)
+ childpi->new_child = 1; /* Flag this as an unseen child process */
+ else
+ {
+ /* Continue the child */
+#ifdef UNIXWARE
+ pctl.cmd = PCRUN;
+ pctl.data = PRCFAULT;
+
+ if (write (pi->ctl_fd, (char *) &pctl, sizeof (struct proc_ctl)) < 0)
+#else
+ childpi->prrun.pr_flags &= PRSTEP;
+ childpi->prrun.pr_flags |= PRCFAULT;
+
+ if (ioctl (childpi->ctl_fd, PIOCRUN, &childpi->prrun) != 0)
+#endif
+ perror_with_name (childpi->pathname);
+ }
+ return 0;
}
#endif /* SYS_lwp_create */
{
/* We will be looking down the PATH to find shell_file. If we
- just do this the normal way (via execlp, which operates by
- attempting an exec for each element of the PATH until it
- finds one which succeeds), then there will be an exec for
- each failed attempt, each of which will cause a PR_SYSEXIT
- stop, and we won't know how to distinguish the PR_SYSEXIT's
- for these failed execs with the ones for successful execs
- (whether the exec has succeeded is stored at that time in the
- carry bit or some such architecture-specific and
- non-ABI-specified place).
-
- So I can't think of anything better than to search the PATH
- now. This has several disadvantages: (1) There is a race
- condition; if we find a file now and it is deleted before we
- exec it, we lose, even if the deletion leaves a valid file
- further down in the PATH, (2) there is no way to know exactly
- what an executable (in the sense of "capable of being
- exec'd") file is. Using access() loses because it may lose
- if the caller is the superuser; failing to use it loses if
- there are ACLs or some such. */
+ just do this the normal way (via execlp, which operates by
+ attempting an exec for each element of the PATH until it
+ finds one which succeeds), then there will be an exec for
+ each failed attempt, each of which will cause a PR_SYSEXIT
+ stop, and we won't know how to distinguish the PR_SYSEXIT's
+ for these failed execs with the ones for successful execs
+ (whether the exec has succeeded is stored at that time in the
+ carry bit or some such architecture-specific and
+ non-ABI-specified place).
+
+ So I can't think of anything better than to search the PATH
+ now. This has several disadvantages: (1) There is a race
+ condition; if we find a file now and it is deleted before we
+ exec it, we lose, even if the deletion leaves a valid file
+ further down in the PATH, (2) there is no way to know exactly
+ what an executable (in the sense of "capable of being
+ exec'd") file is. Using access() loses because it may lose
+ if the caller is the superuser; failing to use it loses if
+ there are ACLs or some such. */
char *p;
char *p1;
/* FIXME-maybe: might want "set path" command so user can change what
- path is used from within GDB. */
+ path is used from within GDB. */
char *path = getenv ("PATH");
int len;
struct stat statbuf;
path = "/bin:/usr/bin";
tryname = alloca (strlen (path) + strlen (shell_file) + 2);
- for (p = path; p != NULL; p = p1 ? p1 + 1: NULL)
+ for (p = path; p != NULL; p = p1 ? p1 + 1 : NULL)
{
p1 = strchr (p, ':');
if (p1 != NULL)
}
fork_inferior (exec_file, allargs, env,
- proc_set_exec_trap, procfs_init_inferior, shell_file);
+ proc_set_exec_trap, procfs_init_inferior, NULL, shell_file);
/* We are at the first instruction we care about. */
/* Pedal to the metal... */
return !procfs_suppress_run;
}
#ifdef TARGET_HAS_HARDWARE_WATCHPOINTS
+#ifndef UNIXWARE
\f
/* Insert a watchpoint */
int
-procfs_set_watchpoint(pid, addr, len, rw)
- int pid;
- CORE_ADDR addr;
- int len;
- int rw;
+procfs_set_watchpoint (pid, addr, len, rw)
+ int pid;
+ CORE_ADDR addr;
+ int len;
+ int rw;
{
- struct procinfo *pi;
- prwatch_t wpt;
+ struct procinfo *pi;
+ prwatch_t wpt;
pi = find_procinfo (pid == -1 ? inferior_pid : pid, 0);
- wpt.pr_vaddr = (caddr_t)addr;
+ wpt.pr_vaddr = (caddr_t) addr;
wpt.pr_size = len;
wpt.pr_wflags = ((rw & 1) ? MA_READ : 0) | ((rw & 2) ? MA_WRITE : 0);
- if (ioctl (pi->fd, PIOCSWATCH, &wpt) < 0)
+ if (ioctl (pi->ctl_fd, PIOCSWATCH, &wpt) < 0)
{
if (errno == E2BIG)
return -1;
/* Currently it sometimes happens that the same watchpoint gets
- deleted twice - don't die in this case (FIXME please) */
+ deleted twice - don't die in this case (FIXME please) */
if (errno == ESRCH && len == 0)
return 0;
print_sys_errmsg (pi->pathname, errno);
}
int
-procfs_stopped_by_watchpoint(pid)
- int pid;
+procfs_stopped_by_watchpoint (pid)
+ int pid;
{
- struct procinfo *pi;
- short what;
- short why;
+ struct procinfo *pi;
+ short what;
+ short why;
pi = find_procinfo (pid == -1 ? inferior_pid : pid, 0);
if (pi->prstatus.pr_flags & (PR_STOPPED | PR_ISTOP))
{
why = pi->prstatus.pr_why;
what = pi->prstatus.pr_what;
- if (why == PR_FAULTED
+ if (why == PR_FAULTED
#if defined (FLTWATCH) && defined (FLTKWATCH)
&& (what == FLTWATCH || what == FLTKWATCH)
#else
#ifdef FLTWATCH
- && (what == FLTWATCH)
+ && (what == FLTWATCH)
#endif
#ifdef FLTKWATCH
&& (what == FLTKWATCH)
#endif
#endif
- )
+ )
return what;
}
return 0;
}
-#endif
+#endif /* !UNIXWARE */
+#endif /* TARGET_HAS_HARDWARE_WATCHPOINTS */
/* Why is this necessary? Shouldn't dead threads just be removed from the
thread database? */
procfs_thread_alive (pid)
int pid;
{
- return 1;
+ struct procinfo *pi, *next_pi;
+
+ for (pi = procinfo_list; pi; pi = next_pi)
+ {
+ next_pi = pi->next;
+ if (pi->pid == pid)
+ {
+ if (procfs_read_status (pi)) /* alive */
+ return 1;
+ else
+ /* defunct (exited) */
+ {
+ close_proc_file (pi);
+ return 0;
+ }
+ }
+ }
+ return 0;
+}
+
+int
+procfs_first_available ()
+{
+ struct procinfo *pi;
+
+ for (pi = procinfo_list; pi; pi = pi->next)
+ {
+ if (procfs_read_status (pi))
+ return pi->pid;
+ }
+ return -1;
+}
+
+int
+procfs_get_pid_fd (pid)
+ int pid;
+{
+ struct procinfo *pi = find_procinfo (pid, 1);
+
+ if (pi == NULL)
+ return -1;
+
+ return pi->ctl_fd;
}
/* Send a SIGINT to the process group. This acts just like the user typed a
}
#endif /* TIDGET */
\f
-struct target_ops procfs_ops = {
- "procfs", /* to_shortname */
- "Unix /proc child process", /* to_longname */
- "Unix /proc child process (started by the \"run\" command).", /* to_doc */
- procfs_open, /* to_open */
- 0, /* to_close */
- procfs_attach, /* to_attach */
- procfs_detach, /* to_detach */
- procfs_resume, /* to_resume */
- procfs_wait, /* to_wait */
- procfs_fetch_registers, /* to_fetch_registers */
- procfs_store_registers, /* to_store_registers */
- procfs_prepare_to_store, /* to_prepare_to_store */
- procfs_xfer_memory, /* to_xfer_memory */
- procfs_files_info, /* to_files_info */
- memory_insert_breakpoint, /* to_insert_breakpoint */
- memory_remove_breakpoint, /* to_remove_breakpoint */
- terminal_init_inferior, /* to_terminal_init */
- terminal_inferior, /* to_terminal_inferior */
- terminal_ours_for_output, /* to_terminal_ours_for_output */
- terminal_ours, /* to_terminal_ours */
- child_terminal_info, /* to_terminal_info */
- procfs_kill_inferior, /* to_kill */
- 0, /* to_load */
- 0, /* to_lookup_symbol */
- procfs_create_inferior, /* to_create_inferior */
- procfs_mourn_inferior, /* to_mourn_inferior */
- procfs_can_run, /* to_can_run */
- procfs_notice_signals, /* to_notice_signals */
- procfs_thread_alive, /* to_thread_alive */
- procfs_stop, /* to_stop */
- process_stratum, /* to_stratum */
- 0, /* to_next */
- 1, /* to_has_all_memory */
- 1, /* to_has_memory */
- 1, /* to_has_stack */
- 1, /* to_has_registers */
- 1, /* to_has_execution */
- 0, /* sections */
- 0, /* sections_end */
- OPS_MAGIC /* to_magic */
-};
+
+static void
+init_procfs_ops ()
+{
+ procfs_ops.to_shortname = "procfs";
+ procfs_ops.to_longname = "Unix /proc child process";
+ procfs_ops.to_doc = "Unix /proc child process (started by the \"run\" command).";
+ procfs_ops.to_open = procfs_open;
+ procfs_ops.to_attach = procfs_attach;
+ procfs_ops.to_detach = procfs_detach;
+ procfs_ops.to_resume = procfs_resume;
+ procfs_ops.to_wait = procfs_wait;
+ procfs_ops.to_fetch_registers = procfs_fetch_registers;
+ procfs_ops.to_store_registers = procfs_store_registers;
+ procfs_ops.to_prepare_to_store = procfs_prepare_to_store;
+ procfs_ops.to_xfer_memory = procfs_xfer_memory;
+ procfs_ops.to_files_info = procfs_files_info;
+ procfs_ops.to_insert_breakpoint = memory_insert_breakpoint;
+ procfs_ops.to_remove_breakpoint = memory_remove_breakpoint;
+ procfs_ops.to_terminal_init = terminal_init_inferior;
+ procfs_ops.to_terminal_inferior = terminal_inferior;
+ procfs_ops.to_terminal_ours_for_output = terminal_ours_for_output;
+ procfs_ops.to_terminal_ours = terminal_ours;
+ procfs_ops.to_terminal_info = child_terminal_info;
+ procfs_ops.to_kill = procfs_kill_inferior;
+ procfs_ops.to_create_inferior = procfs_create_inferior;
+ procfs_ops.to_mourn_inferior = procfs_mourn_inferior;
+ procfs_ops.to_can_run = procfs_can_run;
+ procfs_ops.to_notice_signals = procfs_notice_signals;
+ procfs_ops.to_thread_alive = procfs_thread_alive;
+#ifdef TIDGET
+ procfs_ops.to_pid_to_str = procfs_pid_to_str;
+#endif
+ procfs_ops.to_stop = procfs_stop;
+ procfs_ops.to_stratum = process_stratum;
+ procfs_ops.to_has_all_memory = 1;
+ procfs_ops.to_has_memory = 1;
+ procfs_ops.to_has_stack = 1;
+ procfs_ops.to_has_registers = 1;
+ procfs_ops.to_has_execution = 1;
+ procfs_ops.to_magic = OPS_MAGIC;
+}
void
_initialize_procfs ()
{
#ifdef HAVE_OPTIONAL_PROC_FS
- char procname[32];
+ char procname[MAX_PROC_NAME_SIZE];
int fd;
/* If we have an optional /proc filesystem (e.g. under OSF/1),
don't add procfs support if we cannot access the running
GDB via /proc. */
- sprintf (procname, PROC_NAME_FMT, getpid ());
+ sprintf (procname, STATUS_PROC_NAME_FMT, getpid ());
if ((fd = open (procname, O_RDONLY)) < 0)
return;
close (fd);
#endif
+ init_procfs_ops ();
add_target (&procfs_ops);
- add_info ("proc", info_proc,
-"Show process status information using /proc entry.\n\
+ add_info ("processes", info_proc,
+ "Show process status information using /proc entry.\n\
Specify process id or use current inferior by default.\n\
Specify keywords for detailed information; default is summary.\n\
Keywords are: `all', `faults', `flags', `id', `mappings', `signals',\n\
projects / deliverable / binutils-gdb.git / blobdiff