/* Machine independent support for SVR4 /proc (process file system) for GDB.
- Copyright (C) 1999-2003, 2006-2012 Free Software Foundation, Inc.
+ Copyright (C) 1999-2014 Free Software Foundation, Inc.
Written by Michael Snyder at Cygnus Solutions.
Based on work by Fred Fish, Stu Grossman, Geoff Noer, and others.
#include <signal.h>
#include <ctype.h>
#include "gdb_bfd.h"
-#include "gdb_string.h"
+#include <string.h>
#include "gdb_assert.h"
#include "inflow.h"
#include "auxv.h"
Irix
Solaris
OSF
- Unixware
AIX5
/proc works by imitating a file system: you open a simulated file
#ifdef NEW_PROC_API
#include <sys/types.h>
-#include "gdb_dirent.h" /* opendir/readdir, for listing the LWP's */
+#include <dirent.h> /* opendir/readdir, for listing the LWP's */
#endif
#include <fcntl.h> /* for O_RDONLY */
#include <unistd.h> /* for "X_OK" */
-#include "gdb_stat.h" /* for struct stat */
+#include <sys/stat.h> /* for struct stat */
/* Note: procfs-utils.h must be included after the above system header
files, because it redefines various system calls using macros.
/* This module defines the GDB target vector and its methods. */
static void procfs_attach (struct target_ops *, char *, int);
-static void procfs_detach (struct target_ops *, char *, int);
+static void procfs_detach (struct target_ops *, const char *, int);
static void procfs_resume (struct target_ops *,
ptid_t, int, enum gdb_signal);
static void procfs_stop (ptid_t);
static int procfs_xfer_memory (CORE_ADDR, gdb_byte *, int, int,
struct mem_attrib *attrib,
struct target_ops *);
-static LONGEST procfs_xfer_partial (struct target_ops *ops,
- enum target_object object,
- const char *annex,
- gdb_byte *readbuf,
- const gdb_byte *writebuf,
- ULONGEST offset, LONGEST len);
+static target_xfer_partial_ftype procfs_xfer_partial;
static int procfs_thread_alive (struct target_ops *ops, ptid_t);
/* This function is getting ALMOST long enough to break up into
several. Here is some rationale:
- NEW_PROC_API (Solaris 2.6, Solaris 2.7, Unixware):
+ NEW_PROC_API (Solaris 2.6, Solaris 2.7):
There are several file descriptors that may need to be open
for any given process or LWP. The ones we're intereted in are:
- control (ctl) write-only change the state
(char *) &pi->prstatus,
sizeof (gdb_prstatus_t))
== sizeof (gdb_prstatus_t));
-#if 0 /*def UNIXWARE*/
- if (pi->status_valid &&
- (pi->prstatus.pr_lwp.pr_flags & PR_ISTOP) &&
- pi->prstatus.pr_lwp.pr_why == PR_REQUESTED)
- /* Unixware peculiarity -- read the damn thing again! */
- pi->status_valid = (read (pi->status_fd,
- (char *) &pi->prstatus,
- sizeof (gdb_prstatus_t))
- == sizeof (gdb_prstatus_t));
-#endif /* UNIXWARE */
}
}
#else /* ioctl method */
return 0; /* FIXME: not a good failure value (but what is?) */
#ifdef NEW_PROC_API
-# ifdef UNIXWARE
- /* UnixWare 7.1 puts process status flags, e.g. PR_ASYNC, in
- pstatus_t and LWP status flags, e.g. PR_STOPPED, in lwpstatus_t.
- The two sets of flags don't overlap. */
- return pi->prstatus.pr_flags | pi->prstatus.pr_lwp.pr_flags;
-# else
return pi->prstatus.pr_lwp.pr_flags;
-# endif
#else
return pi->prstatus.pr_flags;
#endif
if (pi->pid != 0)
pi = find_procinfo_or_die (pi->pid, 0);
-#ifdef NEW_PROC_API /* Newest method: UnixWare and newer Solarii. */
+#ifdef NEW_PROC_API /* Newest method: Newer Solarii. */
/* First normalize the PCUNSET/PCRESET command opcode
(which for no obvious reason has a different definition
from one operating system to the next...) */
if (!proc_get_status (pi))
return NULL;
-#ifdef UNIXWARE
- ret = &pi->prstatus.pr_lwp.pr_context.uc_sigmask;
-#else
ret = &pi->prstatus.pr_lwp.pr_lwphold;
-#endif /* UNIXWARE */
#else /* not NEW_PROC_API */
{
static gdb_sigset_t sigheld;
if (!proc_get_status (pi))
return NULL;
- /* OK, sorry about the ifdef's. There's three cases instead of two,
- because in this case Unixware and Solaris/RW differ. */
-
#ifdef NEW_PROC_API
-# ifdef UNIXWARE /* FIXME: Should be autoconfigured. */
- return &pi->prstatus.pr_lwp.pr_context.uc_mcontext.gregs;
-# else
return &pi->prstatus.pr_lwp.pr_reg;
-# endif
#else
return &pi->prstatus.pr_reg;
#endif
if (!proc_get_status (pi))
return NULL;
-# ifdef UNIXWARE /* FIXME: Should be autoconfigured. */
- return &pi->prstatus.pr_lwp.pr_context.uc_mcontext.fpregs;
-# else
return &pi->prstatus.pr_lwp.pr_fpreg;
-# endif
#else /* not NEW_PROC_API */
if (pi->fpregs_valid)
(a.k.a void pointer)! */
#if (defined (PCWATCH) || defined (PIOCSWATCH)) \
- && !(defined (PIOCOPENLWP) || defined (UNIXWARE))
+ && !(defined (PIOCOPENLWP))
static void *
procfs_address_to_host_pointer (CORE_ADDR addr)
{
return 0;
#else
/* Horrible hack! Detect Solaris 2.5, because this doesn't work on 2.5. */
-#if defined (PIOCOPENLWP) || defined (UNIXWARE) /* Solaris 2.5: bail out. */
+#if defined (PIOCOPENLWP) /* Solaris 2.5: bail out. */
return 0;
#else
struct {
procinfo *pi;
/* Find procinfo for the lwp. */
- if ((pi = find_procinfo (PIDGET (ptid), TIDGET (ptid))) == NULL)
+ if ((pi = find_procinfo (ptid_get_pid (ptid), ptid_get_lwp (ptid))) == NULL)
{
warning (_("procfs_find_LDT_entry: could not find procinfo for %d:%ld."),
- PIDGET (ptid), TIDGET (ptid));
+ ptid_get_pid (ptid), ptid_get_lwp (ptid));
return NULL;
}
/* get its general registers. */
if ((gregs = proc_get_gregs (pi)) == NULL)
{
warning (_("procfs_find_LDT_entry: could not read gregs for %d:%ld."),
- PIDGET (ptid), TIDGET (ptid));
+ ptid_get_pid (ptid), ptid_get_lwp (ptid));
return NULL;
}
/* Now extract the GS register's lower 16 bits. */
#else
#if defined (SYS_lwpcreate) || defined (SYS_lwp_create) /* FIXME: multiple */
-/* Solaris and Unixware version */
+/* Solaris version */
static int
proc_get_nthreads (procinfo *pi)
{
currently executing. */
#if defined (SYS_lwpcreate) || defined (SYS_lwp_create) /* FIXME: multiple */
-/* Solaris and Unixware version */
+/* Solaris version */
static int
proc_get_current_thread (procinfo *pi)
{
}
#else
#ifdef NEW_PROC_API
-/* Unixware and Solaris 6 (and later) version. */
+/* Solaris 6 (and later) version. */
static void
do_closedir_cleanup (void *dir)
{
proc_iterate_over_threads (pi, proc_delete_dead_threads, NULL);
- /* Unixware
-
- Note: this brute-force method is the only way I know of to
- accomplish this task on Unixware. This method will also work on
- Solaris 2.6 and 2.7. There is a much simpler and more elegant
- way to do this on Solaris, but the margins of this manuscript are
- too small to write it here... ;-) */
+ /* Note: this brute-force method was originally devised for Unixware
+ (support removed since), and will also work on Solaris 2.6 and
+ 2.7. The original comment mentioned the existence of a much
+ simpler and more elegant way to do this on Solaris, but didn't
+ point out what that was. */
strcpy (pathname, pi->pathname);
strcat (pathname, "/lwp");
}
static void
-procfs_detach (struct target_ops *ops, char *args, int from_tty)
+procfs_detach (struct target_ops *ops, const char *args, int from_tty)
{
int sig = 0;
- int pid = PIDGET (inferior_ptid);
+ int pid = ptid_get_pid (inferior_ptid);
if (args)
sig = atoi (args);
int fail;
int lwpid;
- if ((pi = create_procinfo (PIDGET (ptid), 0)) == NULL)
+ if ((pi = create_procinfo (ptid_get_pid (ptid), 0)) == NULL)
perror (_("procfs: out of memory in 'attach'"));
if (!open_procinfo_files (pi, FD_CTL))
{
fprintf_filtered (gdb_stderr, "procfs:%d -- ", __LINE__);
sprintf (errmsg, "do_attach: couldn't open /proc file for process %d",
- PIDGET (ptid));
+ ptid_get_pid (ptid));
dead_procinfo (pi, errmsg, NOKILL);
}
create_procinfo (pi->pid, lwpid);
/* Add it to gdb's thread list. */
- ptid = MERGEPID (pi->pid, lwpid);
+ ptid = ptid_build (pi->pid, lwpid, 0);
add_thread (ptid);
return ptid;
procinfo *pi;
/* Find procinfo for the main process. */
- pi = find_procinfo_or_die (PIDGET (inferior_ptid), 0); /* FIXME: threads */
+ pi = find_procinfo_or_die (ptid_get_pid (inferior_ptid),
+ 0); /* FIXME: threads */
if (signo)
if (!proc_set_current_signal (pi, signo))
proc_warn (pi, "do_detach, set_current_signal", __LINE__);
{
gdb_gregset_t *gregs;
procinfo *pi;
- int pid = PIDGET (inferior_ptid);
- int tid = TIDGET (inferior_ptid);
+ int pid = ptid_get_pid (inferior_ptid);
+ int tid = ptid_get_lwp (inferior_ptid);
struct gdbarch *gdbarch = get_regcache_arch (regcache);
pi = find_procinfo_or_die (pid, tid);
{
gdb_gregset_t *gregs;
procinfo *pi;
- int pid = PIDGET (inferior_ptid);
- int tid = TIDGET (inferior_ptid);
+ int pid = ptid_get_pid (inferior_ptid);
+ int tid = ptid_get_lwp (inferior_ptid);
struct gdbarch *gdbarch = get_regcache_arch (regcache);
pi = find_procinfo_or_die (pid, tid);
retval = pid_to_ptid (-1);
/* Find procinfo for main process. */
- pi = find_procinfo_or_die (PIDGET (inferior_ptid), 0);
+ pi = find_procinfo_or_die (ptid_get_pid (inferior_ptid), 0);
if (pi)
{
/* We must assume that the status is stale now... */
/* /proc file not found; presumably child has terminated. */
wait_retval = wait (&wstat); /* "wait" for the child's exit. */
- if (wait_retval != PIDGET (inferior_ptid)) /* wrong child? */
+ /* Wrong child? */
+ if (wait_retval != ptid_get_pid (inferior_ptid))
error (_("procfs: couldn't stop "
"process %d: wait returned %d."),
- PIDGET (inferior_ptid), wait_retval);
+ ptid_get_pid (inferior_ptid), wait_retval);
/* FIXME: might I not just use waitpid?
Or try find_procinfo to see if I know about this child? */
retval = pid_to_ptid (wait_retval);
/* The 'pid' we will return to GDB is composed of
the process ID plus the lwp ID. */
- retval = MERGEPID (pi->pid, proc_get_current_thread (pi));
+ retval = ptid_build (pi->pid, proc_get_current_thread (pi), 0);
switch (why) {
case PR_SIGNALLED:
if (!find_procinfo (pi->pid, temp_tid))
create_procinfo (pi->pid, temp_tid);
- temp_ptid = MERGEPID (pi->pid, temp_tid);
+ temp_ptid = ptid_build (pi->pid, temp_tid, 0);
/* If not in GDB's thread list, add it. */
if (!in_thread_list (temp_ptid))
add_thread (temp_ptid);
create_procinfo (pi->pid, temp_tid);
/* If not in GDB's thread list, add it. */
- temp_ptid = MERGEPID (pi->pid, temp_tid);
+ temp_ptid = ptid_build (pi->pid, temp_tid, 0);
if (!in_thread_list (temp_ptid))
add_thread (temp_ptid);
}
/* Got this far without error: If retval isn't in the
threads database, add it. */
- if (PIDGET (retval) > 0 &&
+ if (ptid_get_pid (retval) > 0 &&
!ptid_equal (retval, inferior_ptid) &&
!in_thread_list (retval))
{
GDB's list and to our own. If we don't create a
procinfo, resume may be unhappy later. */
add_thread (retval);
- if (find_procinfo (PIDGET (retval), TIDGET (retval)) == NULL)
- create_procinfo (PIDGET (retval), TIDGET (retval));
+ if (find_procinfo (ptid_get_pid (retval),
+ ptid_get_lwp (retval)) == NULL)
+ create_procinfo (ptid_get_pid (retval),
+ ptid_get_lwp (retval));
}
}
else /* Flags do not indicate STOPPED. */
static LONGEST
procfs_xfer_partial (struct target_ops *ops, enum target_object object,
const char *annex, gdb_byte *readbuf,
- const gdb_byte *writebuf, ULONGEST offset, LONGEST len)
+ const gdb_byte *writebuf, ULONGEST offset, ULONGEST len)
{
switch (object)
{
int nbytes = 0;
/* Find procinfo for main process. */
- pi = find_procinfo_or_die (PIDGET (inferior_ptid), 0);
+ pi = find_procinfo_or_die (ptid_get_pid (inferior_ptid), 0);
if (pi->as_fd == 0 &&
open_procinfo_files (pi, FD_AS) == 0)
{
to proc_run_process (for use in the prrun struct by ioctl). */
/* Find procinfo for main process. */
- pi = find_procinfo_or_die (PIDGET (inferior_ptid), 0);
+ pi = find_procinfo_or_die (ptid_get_pid (inferior_ptid), 0);
/* First cut: ignore pid argument. */
errno = 0;
/* Void the process procinfo's caches. */
invalidate_cache (NULL, pi, NULL);
- if (PIDGET (ptid) != -1)
+ if (ptid_get_pid (ptid) != -1)
{
/* Resume a specific thread, presumably suppressing the
others. */
- thread = find_procinfo (PIDGET (ptid), TIDGET (ptid));
+ thread = find_procinfo (ptid_get_pid (ptid), ptid_get_lwp (ptid));
if (thread != NULL)
{
if (thread->tid != 0)
procfs_pass_signals (int numsigs, unsigned char *pass_signals)
{
gdb_sigset_t signals;
- procinfo *pi = find_procinfo_or_die (PIDGET (inferior_ptid), 0);
+ procinfo *pi = find_procinfo_or_die (ptid_get_pid (inferior_ptid), 0);
int signo;
prfillset (&signals);
if (!ptid_equal (inferior_ptid, null_ptid)) /* ? */
{
/* Find procinfo for main process. */
- procinfo *pi = find_procinfo (PIDGET (inferior_ptid), 0);
+ procinfo *pi = find_procinfo (ptid_get_pid (inferior_ptid), 0);
if (pi)
unconditionally_kill_inferior (pi);
if (!ptid_equal (inferior_ptid, null_ptid))
{
/* Find procinfo for main process. */
- pi = find_procinfo (PIDGET (inferior_ptid), 0);
+ pi = find_procinfo (ptid_get_pid (inferior_ptid), 0);
if (pi)
destroy_procinfo (pi);
}
this point, but it didn't have any lwp info yet. Notify the core
about it. This changes inferior_ptid as well. */
thread_change_ptid (pid_to_ptid (pid),
- MERGEPID (pid, lwpid));
+ ptid_build (pid, lwpid, 0));
- /* Typically two, one trap to exec the shell, one to exec the
- program being debugged. Defined by "inferior.h". */
startup_inferior (START_INFERIOR_TRAPS_EXPECTED);
#ifdef SYS_syssgi
if (current_inferior ()->attach_flag || !target_can_run (¤t_target))
return;
- proc_trace_syscalls_1 (find_procinfo_or_die (PIDGET (inferior_ptid), 0),
- SYS_syssgi, PR_SYSEXIT, FLAG_RESET, 0);
+ proc_trace_syscalls_1 (find_procinfo_or_die (ptid_get_pid (inferior_ptid),
+ 0), SYS_syssgi, PR_SYSEXIT, FLAG_RESET, 0);
#endif
}
static int
procfs_notice_thread (procinfo *pi, procinfo *thread, void *ptr)
{
- ptid_t gdb_threadid = MERGEPID (pi->pid, thread->tid);
+ ptid_t gdb_threadid = ptid_build (pi->pid, thread->tid, 0);
if (!in_thread_list (gdb_threadid) || is_exited (gdb_threadid))
add_thread (gdb_threadid);
procinfo *pi;
/* Find procinfo for main process. */
- pi = find_procinfo_or_die (PIDGET (inferior_ptid), 0);
+ pi = find_procinfo_or_die (ptid_get_pid (inferior_ptid), 0);
proc_update_threads (pi);
proc_iterate_over_threads (pi, procfs_notice_thread, NULL);
}
int proc, thread;
procinfo *pi;
- proc = PIDGET (ptid);
- thread = TIDGET (ptid);
+ proc = ptid_get_pid (ptid);
+ thread = ptid_get_lwp (ptid);
/* If I don't know it, it ain't alive! */
if ((pi = find_procinfo (proc, thread)) == NULL)
return 0;
{
static char buf[80];
- if (TIDGET (ptid) == 0)
- sprintf (buf, "process %d", PIDGET (ptid));
+ if (ptid_get_lwp (ptid) == 0)
+ sprintf (buf, "process %d", ptid_get_pid (ptid));
else
- sprintf (buf, "LWP %ld", TIDGET (ptid));
+ sprintf (buf, "LWP %ld", ptid_get_lwp (ptid));
return buf;
}
procfs_set_watchpoint (ptid_t ptid, CORE_ADDR addr, int len, int rwflag,
int after)
{
-#ifndef UNIXWARE
#ifndef AIX5
int pflags = 0;
procinfo *pi;
- pi = find_procinfo_or_die (PIDGET (ptid) == -1 ?
- PIDGET (inferior_ptid) : PIDGET (ptid), 0);
+ pi = find_procinfo_or_die (ptid_get_pid (ptid) == -1 ?
+ ptid_get_pid (inferior_ptid) : ptid_get_pid (ptid),
+ 0);
/* Translate from GDB's flags to /proc's. */
if (len > 0) /* len == 0 means delete watchpoint. */
proc_error (pi, "set_watchpoint", __LINE__);
}
#endif /* AIX5 */
-#endif /* UNIXWARE */
return 0;
}
{
procinfo *pi;
- pi = find_procinfo_or_die (PIDGET (inferior_ptid), 0);
+ pi = find_procinfo_or_die (ptid_get_pid (inferior_ptid), 0);
if (proc_flags (pi) & (PR_STOPPED | PR_ISTOP))
{
{
procinfo *pi;
- pi = find_procinfo_or_die (PIDGET (inferior_ptid), 0);
+ pi = find_procinfo_or_die (ptid_get_pid (inferior_ptid), 0);
return proc_watchpoint_address (pi, addr);
}
static int
proc_find_memory_regions (find_memory_region_ftype func, void *data)
{
- procinfo *pi = find_procinfo_or_die (PIDGET (inferior_ptid), 0);
+ procinfo *pi = find_procinfo_or_die (ptid_get_pid (inferior_ptid), 0);
return iterate_over_mappings (pi, func, data,
find_memory_regions_callback);
argv++;
}
if (pid == 0)
- pid = PIDGET (inferior_ptid);
+ pid = ptid_get_pid (inferior_ptid);
if (pid == 0)
error (_("No current process: you must name one."));
else
{
procinfo *pi;
- if (PIDGET (inferior_ptid) <= 0)
+ if (ptid_get_pid (inferior_ptid) <= 0)
error (_("you must be debugging a process to use this command."));
if (args == NULL || args[0] == 0)
error_no_arg (_("system call to trace"));
- pi = find_procinfo_or_die (PIDGET (inferior_ptid), 0);
+ pi = find_procinfo_or_die (ptid_get_pid (inferior_ptid), 0);
if (isdigit (args[0]))
{
const int syscallnum = atoi (args);
}
/* =================== GCORE .NOTE "MODULE" =================== */
-#if defined (UNIXWARE) || defined (PIOCOPENLWP) || defined (PCAGENT)
-/* gcore only implemented on solaris and unixware (so far) */
+#if defined (PIOCOPENLWP) || defined (PCAGENT)
+/* gcore only implemented on solaris (so far) */
static char *
procfs_do_thread_registers (bfd *obfd, ptid_t ptid,
unsigned long merged_pid;
struct cleanup *old_chain;
- merged_pid = TIDGET (ptid) << 16 | PIDGET (ptid);
+ merged_pid = ptid_get_lwp (ptid) << 16 | ptid_get_pid (ptid);
/* This part is the old method for fetching registers.
It should be replaced by the newer one using regsets
if (pi != NULL)
{
- ptid_t ptid = MERGEPID (pi->pid, thread->tid);
+ ptid_t ptid = ptid_build (pi->pid, thread->tid, 0);
args->note_data = procfs_do_thread_registers (args->obfd, ptid,
args->note_data,
gdb_fpregset_t fpregs;
char fname[16] = {'\0'};
char psargs[80] = {'\0'};
- procinfo *pi = find_procinfo_or_die (PIDGET (inferior_ptid), 0);
+ procinfo *pi = find_procinfo_or_die (ptid_get_pid (inferior_ptid), 0);
char *note_data = NULL;
char *inf_args;
struct procfs_corefile_thread_data thread_args;
stop_signal = find_stop_signal ();
-#ifdef UNIXWARE
+#ifdef NEW_PROC_API
fill_gregset (get_current_regcache (), &gregs, -1);
note_data = elfcore_write_pstatus (obfd, note_data, note_size,
- PIDGET (inferior_ptid),
+ ptid_get_pid (inferior_ptid),
stop_signal, &gregs);
#endif
thread_args.stop_signal = stop_signal;
proc_iterate_over_threads (pi, procfs_corefile_thread_callback,
&thread_args);
-
- /* There should be always at least one thread. */
- gdb_assert (thread_args.note_data != note_data);
note_data = thread_args.note_data;
auxv_len = target_read_alloc (¤t_target, TARGET_OBJECT_AUXV,
make_cleanup (xfree, note_data);
return note_data;
}
-#else /* !(Solaris or Unixware) */
+#else /* !Solaris */
static char *
procfs_make_note_section (bfd *obfd, int *note_size)
{
error (_("gcore not implemented for this host."));
return NULL; /* lint */
}
-#endif /* Solaris or Unixware */
+#endif /* Solaris */
/* =================== END GCORE .NOTE "MODULE" =================== */
projects / deliverable / binutils-gdb.git / blobdiff