/* Low level interface for debugging HPUX/DCE threads for GDB, the GNU debugger.
- Copyright 1996 Free Software Foundation, Inc.
+ Copyright 1996, 1999 Free Software Foundation, Inc.
-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. */
/* This module implements a sort of half target that sits between the
machine-independent parts of GDB and the ptrace interface (infptrace.c) to
structures that live in the user's heap. For the most part, the kernel has
no knowlege of these threads.
- */
+ */
#include "defs.h"
#include "target.h"
#include "inferior.h"
#include <fcntl.h>
-#include <unistd.h>
#include <sys/stat.h>
#include "gdbcore.h"
-extern struct target_ops hpux_thread_ops; /* Forward declaration */
-
extern int child_suppress_run;
-extern struct target_ops child_ops; /* target vector for inftarg.c */
+extern struct target_ops child_ops; /* target vector for inftarg.c */
+
+extern void _initialize_hpux_thread PARAMS ((void));
struct string_map
-{
- int num;
- char *str;
-};
+ {
+ int num;
+ char *str;
+ };
static int hpux_thread_active = 0;
static CORE_ADDR P_cma__g_known_threads;
static CORE_ADDR P_cma__g_current_thread;
-static struct cleanup * save_inferior_pid PARAMS ((void));
+static struct cleanup *save_inferior_pid PARAMS ((void));
+
static void restore_inferior_pid PARAMS ((int pid));
+
static void hpux_thread_resume PARAMS ((int pid, int step,
enum target_signal signo));
+
+static void init_hpux_thread_ops PARAMS ((void));
+
+static struct target_ops hpux_thread_ops;
\f
/*
-LOCAL FUNCTION
+ LOCAL FUNCTION
- save_inferior_pid - Save inferior_pid on the cleanup list
- restore_inferior_pid - Restore inferior_pid from the cleanup list
+ save_inferior_pid - Save inferior_pid on the cleanup list
+ restore_inferior_pid - Restore inferior_pid from the cleanup list
-SYNOPSIS
+ SYNOPSIS
- struct cleanup *save_inferior_pid ()
- void restore_inferior_pid (int pid)
+ struct cleanup *save_inferior_pid ()
+ void restore_inferior_pid (int pid)
-DESCRIPTION
+ DESCRIPTION
- These two functions act in unison to restore inferior_pid in
- case of an error.
+ These two functions act in unison to restore inferior_pid in
+ case of an error.
-NOTES
+ NOTES
- inferior_pid is a global variable that needs to be changed by many of
- these routines before calling functions in procfs.c. In order to
- guarantee that inferior_pid gets restored (in case of errors), you
- need to call save_inferior_pid before changing it. At the end of the
- function, you should invoke do_cleanups to restore it.
+ inferior_pid is a global variable that needs to be changed by many of
+ these routines before calling functions in procfs.c. In order to
+ guarantee that inferior_pid gets restored (in case of errors), you
+ need to call save_inferior_pid before changing it. At the end of the
+ function, you should invoke do_cleanups to restore it.
*/
if (cached_active_thread != 0)
return cached_active_thread;
- read_memory ((CORE_ADDR)P_cma__g_current_thread,
- (char *)&tcb_ptr,
+ read_memory ((CORE_ADDR) P_cma__g_current_thread,
+ (char *) &tcb_ptr,
sizeof tcb_ptr);
- read_memory (tcb_ptr, (char *)&tcb, sizeof tcb);
+ read_memory (tcb_ptr, (char *) &tcb, sizeof tcb);
return (cma_thread_get_unique (&tcb.prolog.client_thread) << 16) | main_pid;
}
-static cma__t_int_tcb * find_tcb PARAMS ((int thread));
+static cma__t_int_tcb *find_tcb PARAMS ((int thread));
static cma__t_int_tcb *
find_tcb (thread)
if (thread == cached_thread)
return &cached_tcb;
- read_memory ((CORE_ADDR)P_cma__g_known_threads,
- (char *)&queue_header,
+ read_memory ((CORE_ADDR) P_cma__g_known_threads,
+ (char *) &queue_header,
sizeof queue_header);
for (queue_ptr = queue_header.queue.flink;
- queue_ptr != (cma__t_queue *)P_cma__g_known_threads;
+ queue_ptr != (cma__t_queue *) P_cma__g_known_threads;
queue_ptr = cached_tcb.threads.flink)
{
cma__t_int_tcb *tcb_ptr;
tcb_ptr = cma__base (queue_ptr, threads, cma__t_int_tcb);
- read_memory ((CORE_ADDR)tcb_ptr, (char *)&cached_tcb, sizeof cached_tcb);
+ read_memory ((CORE_ADDR) tcb_ptr, (char *) &cached_tcb, sizeof cached_tcb);
if (cached_tcb.header.type == cma__c_obj_tcb)
if (cma_thread_get_unique (&cached_tcb.prolog.client_thread) == thread >> 16)
static char regmap[NUM_REGS] =
{
- -2, -1, -1, 0, 4, 8, 12, 16, 20, 24, /* flags, r1 -> r9 */
- 28, 32, 36, 40, 44, 48, 52, 56, 60, -1, /* r10 -> r19 */
- -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* r20 -> r29 */
+ -2, -1, -1, 0, 4, 8, 12, 16, 20, 24, /* flags, r1 -> r9 */
+ 28, 32, 36, 40, 44, 48, 52, 56, 60, -1, /* r10 -> r19 */
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* r20 -> r29 */
/* r30, r31, sar, pcoqh, pcsqh, pcoqt, pcsqt, eiem, iir, isr */
-2, -1, -1, -2, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, /* mpsfu_high, mpsfu_low, mpsfu_ovflo, pad */
- 144, -1, -1, -1, -1, -1, -1, -1, /* fpsr, fpe1 -> fpe7 */
- -1, -1, -1, -1, -1, -1, -1, -1, /* fr4 -> fr7 */
- -1, -1, -1, -1, -1, -1, -1, -1, /* fr8 -> fr11 */
- 136, -1, 128, -1, 120, -1, 112, -1, /* fr12 -> fr15 */
- 104, -1, 96, -1, 88, -1, 80, -1, /* fr16 -> fr19 */
- 72, -1, 64, -1, -1, -1, -1, -1, /* fr20 -> fr23 */
- -1, -1, -1, -1, -1, -1, -1, -1, /* fr24 -> fr27 */
- -1, -1, -1, -1, -1, -1, -1, -1, /* fr28 -> fr31 */
+ 144, -1, -1, -1, -1, -1, -1, -1, /* fpsr, fpe1 -> fpe7 */
+ -1, -1, -1, -1, -1, -1, -1, -1, /* fr4 -> fr7 */
+ -1, -1, -1, -1, -1, -1, -1, -1, /* fr8 -> fr11 */
+ 136, -1, 128, -1, 120, -1, 112, -1, /* fr12 -> fr15 */
+ 104, -1, 96, -1, 88, -1, 80, -1, /* fr16 -> fr19 */
+ 72, -1, 64, -1, -1, -1, -1, -1, /* fr20 -> fr23 */
+ -1, -1, -1, -1, -1, -1, -1, -1, /* fr24 -> fr27 */
+ -1, -1, -1, -1, -1, -1, -1, -1, /* fr28 -> fr31 */
};
static void
unsigned char buf[MAX_REGISTER_RAW_SIZE];
CORE_ADDR sp;
- sp = (CORE_ADDR)tcb_ptr->static_ctx.sp - 160;
+ sp = (CORE_ADDR) tcb_ptr->static_ctx.sp - 160;
if (regno == FLAGS_REGNUM)
/* Flags must be 0 to avoid bogus value for SS_INSYSCALL */
unsigned char buf[MAX_REGISTER_RAW_SIZE];
CORE_ADDR sp;
- sp = (CORE_ADDR)tcb_ptr->static_ctx.sp - 160;
+ sp = (CORE_ADDR) tcb_ptr->static_ctx.sp - 160;
if (regno == FLAGS_REGNUM)
- child_ops.to_store_registers (regno); /* Let lower layer handle this... */
+ child_ops.to_store_registers (regno); /* Let lower layer handle this... */
else if (regno == SP_REGNUM)
{
- write_memory ((CORE_ADDR)&tcb_ptr->static_ctx.sp,
+ write_memory ((CORE_ADDR) & tcb_ptr->static_ctx.sp,
registers + REGISTER_BYTE (regno),
REGISTER_RAW_SIZE (regno));
tcb_ptr->static_ctx.sp = (cma__t_hppa_regs *)
char *myaddr;
int len;
int dowrite;
- struct target_ops *target; /* ignored */
+ struct target_ops *target; /* ignored */
{
int retval;
struct cleanup *old_chain;
those variables don't show up until the library gets mapped and the symbol
table is read in. */
+/* This new_objfile event is now managed by a chained function pointer.
+ * It is the callee's responsability to call the next client on the chain.
+ */
+
+/* Saved pointer to previous owner of the new_objfile event. */
+static void (*target_new_objfile_chain) PARAMS ((struct objfile *));
+
void
hpux_thread_new_objfile (objfile)
struct objfile *objfile;
if (!objfile)
{
hpux_thread_active = 0;
-
- return;
+ goto quit;
}
ms = lookup_minimal_symbol ("cma__g_known_threads", NULL, objfile);
if (!ms)
- return;
+ goto quit;
P_cma__g_known_threads = SYMBOL_VALUE_ADDRESS (ms);
ms = lookup_minimal_symbol ("cma__g_current_thread", NULL, objfile);
if (!ms)
- return;
+ goto quit;
P_cma__g_current_thread = SYMBOL_VALUE_ADDRESS (ms);
hpux_thread_active = 1;
+quit:
+ /* Call predecessor on chain, if any. */
+ if (target_new_objfile_chain)
+ target_new_objfile_chain (objfile);
}
/* Clean up after the inferior dies. */
return buf;
}
\f
-struct target_ops hpux_thread_ops = {
- "hpux-threads", /* to_shortname */
- "HPUX threads and pthread.", /* to_longname */
- "HPUX threads and pthread support.", /* to_doc */
- hpux_thread_open, /* to_open */
- 0, /* to_close */
- hpux_thread_attach, /* to_attach */
- NULL, /* to_post_attach */
- NULL, /* to_require_attach */
- hpux_thread_detach, /* to_detach */
- NULL, /* to_require_detach */
- hpux_thread_resume, /* to_resume */
- hpux_thread_wait, /* to_wait */
- NULL, /* to_post_wait */
- hpux_thread_fetch_registers, /* to_fetch_registers */
- hpux_thread_store_registers, /* to_store_registers */
- hpux_thread_prepare_to_store, /* to_prepare_to_store */
- hpux_thread_xfer_memory, /* to_xfer_memory */
- hpux_thread_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 */
- hpux_thread_kill_inferior, /* to_kill */
- 0, /* to_load */
- 0, /* to_lookup_symbol */
- hpux_thread_create_inferior, /* to_create_inferior */
- NULL, /* to_post_startup_inferior */
- NULL, /* to_acknowledge_created_inferior */
- NULL, /* to_clone_and_follow_inferior */
- NULL, /* to_post_follow_inferior_by_clone */
- NULL, /* to_insert_fork_catchpoint */
- NULL, /* to_remove_fork_catchpoint */
- NULL, /* to_insert_vfork_catchpoint */
- NULL, /* to_remove_vfork_catchpoint */
- NULL, /* to_has_forked */
- NULL, /* to_has_vforked */
- NULL, /* to_can_follow_vfork_prior_to_exec */
- NULL, /* to_post_follow_fork */
- hpux_thread_mourn_inferior, /* to_mourn_inferior */
- NULL, /* to_insert_exec_catchpoint */
- NULL, /* to_remove_exec_catchpoint */
- NULL, /* to_has_execd */
- NULL, /* to_reported_exec_events_per_exec_call */
- NULL, /* to_has_syscall_event */
- NULL, /* to_has_exited */
- hpux_thread_can_run, /* to_can_run */
- hpux_thread_notice_signals, /* to_notice_signals */
- hpux_thread_alive, /* to_thread_alive */
- hpux_thread_stop, /* to_stop */
- NULL, /* to_enable_exception_callback */
- NULL, /* to_get_current_exception_event */
- NULL, /* to_pid_to_exec_file */
- NULL, /* to_core_file_to_sym_file */
- 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_hpux_thread_ops ()
+{
+ hpux_thread_ops.to_shortname = "hpux-threads";
+ hpux_thread_ops.to_longname = "HPUX threads and pthread.";
+ hpux_thread_ops.to_doc = "HPUX threads and pthread support.";
+ hpux_thread_ops.to_open = hpux_thread_open;
+ hpux_thread_ops.to_attach = hpux_thread_attach;
+ hpux_thread_ops.to_detach = hpux_thread_detach;
+ hpux_thread_ops.to_resume = hpux_thread_resume;
+ hpux_thread_ops.to_wait = hpux_thread_wait;
+ hpux_thread_ops.to_fetch_registers = hpux_thread_fetch_registers;
+ hpux_thread_ops.to_store_registers = hpux_thread_store_registers;
+ hpux_thread_ops.to_prepare_to_store = hpux_thread_prepare_to_store;
+ hpux_thread_ops.to_xfer_memory = hpux_thread_xfer_memory;
+ hpux_thread_ops.to_files_info = hpux_thread_files_info;
+ hpux_thread_ops.to_insert_breakpoint = memory_insert_breakpoint;
+ hpux_thread_ops.to_remove_breakpoint = memory_remove_breakpoint;
+ hpux_thread_ops.to_terminal_init = terminal_init_inferior;
+ hpux_thread_ops.to_terminal_inferior = terminal_inferior;
+ hpux_thread_ops.to_terminal_ours_for_output = terminal_ours_for_output;
+ hpux_thread_ops.to_terminal_ours = terminal_ours;
+ hpux_thread_ops.to_terminal_info = child_terminal_info;
+ hpux_thread_ops.to_kill = hpux_thread_kill_inferior;
+ hpux_thread_ops.to_create_inferior = hpux_thread_create_inferior;
+ hpux_thread_ops.to_mourn_inferior = hpux_thread_mourn_inferior;
+ hpux_thread_ops.to_can_run = hpux_thread_can_run;
+ hpux_thread_ops.to_notice_signals = hpux_thread_notice_signals;
+ hpux_thread_ops.to_thread_alive = hpux_thread_alive;
+ hpux_thread_ops.to_stop = hpux_thread_stop;
+ hpux_thread_ops.to_stratum = process_stratum;
+ hpux_thread_ops.to_has_all_memory = 1;
+ hpux_thread_ops.to_has_memory = 1;
+ hpux_thread_ops.to_has_stack = 1;
+ hpux_thread_ops.to_has_registers = 1;
+ hpux_thread_ops.to_has_execution = 1;
+ hpux_thread_ops.to_magic = OPS_MAGIC;
+}
void
_initialize_hpux_thread ()
{
+ init_hpux_thread_ops ();
add_target (&hpux_thread_ops);
child_suppress_run = 1;
+ /* Hook into new_objfile notification. */
+ target_new_objfile_chain = target_new_objfile_hook;
+ target_new_objfile_hook = hpux_thread_new_objfile;
}