mirror of
https://sourceware.org/git/binutils-gdb.git
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2003-06-19 Michael Snyder <msnyder@redhat.com>
* linux-nat.h: New file. * linux-nat.c: Include linux-nat.h. * lin-lwp.c: Include linux-nat.h. Move struct lwp_info def to linux-nat.h. * linux-proc.c: Include linux-nat.h. (linux_make_note_section): Iterate over lwps instead of threads. (linux_do_thread_registers): Use lwp instead of merged pid. * config/nm-linux.h: Move miscelaneous def'ns to linux-nat.h. * Makefile.in (lin-lwp.o, linux-proc.o, linux-nat.o): Add dependency on linux_nat_h.
This commit is contained in:
Michael Snyder
parent
adf5f719da
commit
0274a8cedb
@ -1,3 +1,16 @@
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2003-06-19 Michael Snyder <msnyder@redhat.com>
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* linux-nat.h: New file.
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* linux-nat.c: Include linux-nat.h.
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* lin-lwp.c: Include linux-nat.h.
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Move struct lwp_info def to linux-nat.h.
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* linux-proc.c: Include linux-nat.h.
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(linux_make_note_section): Iterate over lwps instead of threads.
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(linux_do_thread_registers): Use lwp instead of merged pid.
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* config/nm-linux.h: Move miscelaneous def'ns to linux-nat.h.
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* Makefile.in (lin-lwp.o, linux-proc.o, linux-nat.o):
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Add dependency on linux_nat_h.
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2003-06-19 Theodore A. Roth <troth@openavr.org>
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* avr-tdep.c (avr_extract_return_value): Delete debugging fprintf.
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@ -685,6 +685,7 @@ jv_lang_h = jv-lang.h
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kod_h = kod.h
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language_h = language.h
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linespec_h = linespec.h
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linux_nat_h = linux-nat.h
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m2_lang_h = m2-lang.h
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m68k_tdep_h = m68k-tdep.h
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macroexp_h = macroexp.h
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@ -1912,14 +1913,16 @@ language.o: language.c $(defs_h) $(gdb_string_h) $(symtab_h) $(gdbtypes_h) \
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$(value_h) $(gdbcmd_h) $(expression_h) $(language_h) $(target_h) \
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$(parser_defs_h) $(jv_lang_h) $(demangle_h)
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lin-lwp.o: lin-lwp.c $(defs_h) $(gdb_assert_h) $(gdb_string_h) $(gdb_wait_h) \
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$(gdbthread_h) $(inferior_h) $(target_h) $(regcache_h) $(gdbcmd_h)
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$(gdbthread_h) $(inferior_h) $(target_h) $(regcache_h) $(gdbcmd_h) \
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$(linux_nat_h)
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linespec.o: linespec.c $(defs_h) $(symtab_h) $(frame_h) $(command_h) \
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$(symfile_h) $(objfiles_h) $(source_h) $(demangle_h) $(value_h) \
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$(completer_h) $(cp_abi_h) $(parser_defs_h) $(block_h) $(objc_lang_h)
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linux-nat.o: linux-nat.c $(defs_h) $(inferior_h) $(target_h) $(gdb_wait_h)
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linux-nat.o: linux-nat.c $(defs_h) $(inferior_h) $(target_h) $(gdb_wait_h) \
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$(linux_nat_h)
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linux-proc.o: linux-proc.c $(defs_h) $(inferior_h) $(regcache_h) \
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$(gregset_h) $(gdbcore_h) $(gdbthread_h) $(elf_bfd_h) \
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$(cli_decode_h) $(gdb_string_h)
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$(cli_decode_h) $(gdb_string_h) $(linux_nat_h)
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lynx-nat.o: lynx-nat.c $(defs_h) $(frame_h) $(inferior_h) $(target_h) \
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$(gdbcore_h) $(regcache_h)
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m2-lang.o: m2-lang.c $(defs_h) $(symtab_h) $(gdbtypes_h) $(expression_h) \
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@ -70,13 +70,6 @@ extern void lin_thread_get_thread_signals (sigset_t *mask);
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/* Override child_pid_to_exec_file in 'inftarg.c'. */
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#define CHILD_PID_TO_EXEC_FILE
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struct mem_attrib;
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extern int linux_proc_xfer_memory (CORE_ADDR addr, char *myaddr, int len,
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int write, struct mem_attrib *attrib,
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struct target_ops *target);
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extern void linux_record_stopped_pid (int pid);
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#define CHILD_INSERT_FORK_CATCHPOINT
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#define CHILD_INSERT_VFORK_CATCHPOINT
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#define CHILD_INSERT_EXEC_CATCHPOINT
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@ -40,6 +40,8 @@
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static int debug_lin_lwp;
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extern char *strsignal (int sig);
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#include "linux-nat.h"
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/* On GNU/Linux there are no real LWP's. The closest thing to LWP's
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are processes sharing the same VM space. A multi-threaded process
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is basically a group of such processes. However, such a grouping
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@ -73,43 +75,6 @@ extern char *strsignal (int sig);
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threads will run out of processes, even if the threads exit,
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because the "zombies" stay around. */
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/* Structure describing a LWP. */
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struct lwp_info
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{
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/* The process id of the LWP. This is a combination of the LWP id
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and overall process id. */
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ptid_t ptid;
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/* Non-zero if this LWP is cloned. In this context "cloned" means
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that the LWP is reporting to its parent using a signal other than
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SIGCHLD. */
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int cloned;
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/* Non-zero if we sent this LWP a SIGSTOP (but the LWP didn't report
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it back yet). */
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int signalled;
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/* Non-zero if this LWP is stopped. */
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int stopped;
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/* Non-zero if this LWP will be/has been resumed. Note that an LWP
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can be marked both as stopped and resumed at the same time. This
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happens if we try to resume an LWP that has a wait status
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pending. We shouldn't let the LWP run until that wait status has
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been processed, but we should not report that wait status if GDB
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didn't try to let the LWP run. */
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int resumed;
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/* If non-zero, a pending wait status. */
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int status;
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/* Non-zero if we were stepping this LWP. */
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int step;
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/* Next LWP in list. */
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struct lwp_info *next;
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};
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/* List of known LWPs. */
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static struct lwp_info *lwp_list;
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@ -25,6 +25,8 @@
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#include "gdb_wait.h"
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#include <sys/ptrace.h>
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#include "linux-nat.h"
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/* If the system headers did not provide the constants, hard-code the normal
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values. */
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#ifndef PTRACE_EVENT_FORK
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70
gdb/linux-nat.h
Normal file
70
gdb/linux-nat.h
Normal file
@ -0,0 +1,70 @@
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/* Native debugging support for GNU/Linux (LWP layer).
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Copyright 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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/* Structure describing an LWP. */
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struct lwp_info
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{
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/* The process id of the LWP. This is a combination of the LWP id
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and overall process id. */
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ptid_t ptid;
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/* Non-zero if this LWP is cloned. In this context "cloned" means
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that the LWP is reporting to its parent using a signal other than
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SIGCHLD. */
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int cloned;
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/* Non-zero if we sent this LWP a SIGSTOP (but the LWP didn't report
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it back yet). */
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int signalled;
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/* Non-zero if this LWP is stopped. */
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int stopped;
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/* Non-zero if this LWP will be/has been resumed. Note that an LWP
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can be marked both as stopped and resumed at the same time. This
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happens if we try to resume an LWP that has a wait status
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pending. We shouldn't let the LWP run until that wait status has
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been processed, but we should not report that wait status if GDB
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didn't try to let the LWP run. */
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int resumed;
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/* If non-zero, a pending wait status. */
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int status;
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/* Non-zero if we were stepping this LWP. */
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int step;
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/* Next LWP in list. */
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struct lwp_info *next;
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};
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/* Read/write to target memory via Linux's "proc file system". */
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struct mem_attrib;
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extern int linux_proc_xfer_memory (CORE_ADDR addr, char *myaddr, int len,
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int write, struct mem_attrib *attrib,
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struct target_ops *target);
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extern void linux_record_stopped_pid (int pid);
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/* Iterator function for lin-lwp's lwp list. */
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struct lwp_info *iterate_over_lwps (int (*callback) (struct lwp_info *,
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void *),
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void *data);
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@ -35,6 +35,8 @@
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#include "cli/cli-decode.h" /* for add_info */
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#include "gdb_string.h"
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#include "linux-nat.h"
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#ifndef O_LARGEFILE
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#define O_LARGEFILE 0
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#endif
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@ -171,13 +173,13 @@ linux_do_thread_registers (bfd *obfd, ptid_t ptid,
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#ifdef FILL_FPXREGSET
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gdb_fpxregset_t fpxregs;
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#endif
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unsigned long merged_pid = ptid_get_tid (ptid) << 16 | ptid_get_pid (ptid);
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unsigned long lwp = ptid_get_lwp (ptid);
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fill_gregset (&gregs, -1);
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note_data = (char *) elfcore_write_prstatus (obfd,
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note_data,
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note_size,
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merged_pid,
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lwp,
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stop_signal, &gregs);
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fill_fpregset (&fpregs, -1);
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@ -210,7 +212,7 @@ struct linux_corefile_thread_data
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*/
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static int
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linux_corefile_thread_callback (struct thread_info *ti, void *data)
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linux_corefile_thread_callback (struct lwp_info *ti, void *data)
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{
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struct linux_corefile_thread_data *args = data;
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ptid_t saved_ptid = inferior_ptid;
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@ -268,7 +270,7 @@ linux_make_note_section (bfd *obfd, int *note_size)
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thread_args.note_data = note_data;
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thread_args.note_size = note_size;
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thread_args.num_notes = 0;
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iterate_over_threads (linux_corefile_thread_callback, &thread_args);
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iterate_over_lwps (linux_corefile_thread_callback, &thread_args);
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if (thread_args.num_notes == 0)
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{
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/* iterate_over_threads didn't come up with any threads;
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