Implement a "generate-core-file" command in gdb, save target state.
* gcore.c: New file. Implement new command 'generate-core-file'.
Save a corefile image of the current state of the inferior.
* linux-proc.c: Add linux-specific code for saving corefiles.
* target.h (struct target_ops): Add new target vectors for saving
corefiles; to_find_memory_regions and to_make_corefile_notes.
(target_find_memory_regions): New macro.
(target_make_corefile_notes): New macro.
* target.c (update_current_target): Inherit new target methods.
(dummy_find_memory_regions): New place-holder method.
(dummy_make_corefile_notes): New place-holder method.
(init_dummy_target): Initialize new dummy target vectors.
* exec.c (exec_set_find_memory_regions): New function.
Allow the exec_ops vector for memory regions to be taken over.
(exec_make_note_section): New function, target vector method.
* defs.h (exec_set_find_memory_regions): Export prototype.
* procfs.c (proc_find_memory_regions): New function, corefile method.
(procfs_make_note_section): New function, corefile method.
(init_procfs_ops): Set new target vector pointers.
(find_memory_regions_callback): New function.
(procfs_do_thread_registers): New function.
(procfs_corefile_thread_callback): New function.
* sol-thread.c (sol_find_memory_regions): New function.
(sol_make_note_section): New function.
(init_sol_thread_ops): Initialize new target vectors.
* inftarg.c (inftarg_set_find_memory_regions): New function.
Allow to_find_memory_regions vector to be taken over.
(inftarg_set_make_corefile_notes): New function.
Allow to_make_corefile_notes vector to be taken over.
* thread-db.c (thread_db_new_objfile): Don't activate thread-db
interface layer if not target_has_execution (may be a corefile).
* config/i386/linux.mh: Add gcore.o to NATDEPFILES.
* config/sparc/sun4sol2.mh: Ditto.
* config/alpha/alpha-linux.mh: Ditto.
* config/arm/linux.mh: Ditto.
* config/i386/x86-64linux.mh: Ditto.
* config/ia64/linux.mh: Ditto.
* config/m68k/linux.mh: Ditto.
* config/mips/linux.mh: Ditto.
* config/powerpc/linux.mh: Ditto.
* config/sparc/linux.mh: Ditto.
+2002-01-03 Michael Snyder <msnyder@redhat.com>
+
+ Implement a "generate-core-file" command in gdb, save target state.
+ * gcore.c: New file. Implement new command 'generate-core-file'.
+ Save a corefile image of the current state of the inferior.
+ * linux-proc.c: Add linux-specific code for saving corefiles.
+ * target.h (struct target_ops): Add new target vectors for saving
+ corefiles; to_find_memory_regions and to_make_corefile_notes.
+ (target_find_memory_regions): New macro.
+ (target_make_corefile_notes): New macro.
+ * target.c (update_current_target): Inherit new target methods.
+ (dummy_find_memory_regions): New place-holder method.
+ (dummy_make_corefile_notes): New place-holder method.
+ (init_dummy_target): Initialize new dummy target vectors.
+ * exec.c (exec_set_find_memory_regions): New function.
+ Allow the exec_ops vector for memory regions to be taken over.
+ (exec_make_note_section): New function, target vector method.
+ * defs.h (exec_set_find_memory_regions): Export prototype.
+ * procfs.c (proc_find_memory_regions): New function, corefile method.
+ (procfs_make_note_section): New function, corefile method.
+ (init_procfs_ops): Set new target vector pointers.
+ (find_memory_regions_callback): New function.
+ (procfs_do_thread_registers): New function.
+ (procfs_corefile_thread_callback): New function.
+ * sol-thread.c (sol_find_memory_regions): New function.
+ (sol_make_note_section): New function.
+ (init_sol_thread_ops): Initialize new target vectors.
+ * inftarg.c (inftarg_set_find_memory_regions): New function.
+ Allow to_find_memory_regions vector to be taken over.
+ (inftarg_set_make_corefile_notes): New function.
+ Allow to_make_corefile_notes vector to be taken over.
+ * thread-db.c (thread_db_new_objfile): Don't activate thread-db
+ interface layer if not target_has_execution (may be a corefile).
+ * config/i386/linux.mh: Add gcore.o to NATDEPFILES.
+ * config/sparc/sun4sol2.mh: Ditto.
+ * config/alpha/alpha-linux.mh: Ditto.
+ * config/arm/linux.mh: Ditto.
+ * config/i386/x86-64linux.mh: Ditto.
+ * config/ia64/linux.mh: Ditto.
+ * config/m68k/linux.mh: Ditto.
+ * config/mips/linux.mh: Ditto.
+ * config/powerpc/linux.mh: Ditto.
+ * config/sparc/linux.mh: Ditto.
+
2002-01-07 Michael Snyder <msnyder@redhat.com>
* arm-linux-nat.c: Remove references to regcache.c internal data
XM_FILE= xm-alphalinux.h
NAT_FILE= nm-linux.h
NATDEPFILES= infptrace.o inftarg.o corelow.o alpha-nat.o linux-proc.o \
- fork-child.o proc-service.o thread-db.o lin-lwp.o
+ fork-child.o proc-service.o thread-db.o lin-lwp.o gcore.o
LOADLIBES = -ldl -rdynamic
NAT_FILE= nm-linux.h
NATDEPFILES= infptrace.o inftarg.o fork-child.o corelow.o \
- core-regset.o arm-linux-nat.o linux-proc.o \
+ core-regset.o arm-linux-nat.o linux-proc.o gcore.o \
proc-service.o thread-db.o lin-lwp.o
LOADLIBES= -ldl -rdynamic
NAT_FILE= nm-linux.h
NATDEPFILES= infptrace.o inftarg.o fork-child.o corelow.o linux-proc.o \
core-aout.o i386-nat.o i386-linux-nat.o i387-nat.o \
- proc-service.o thread-db.o lin-lwp.o linux-proc.o
+ proc-service.o thread-db.o lin-lwp.o linux-proc.o gcore.o
# The dynamically loaded libthread_db needs access to symbols in the
# gdb executable.
NAT_FILE= nm-x86-64.h
NATDEPFILES= infptrace.o inftarg.o fork-child.o corelow.o \
core-aout.o i386-nat.o x86-64-nat.o x86-64-linux-nat.o \
- i387-nat.o proc-service.o thread-db.o lin-lwp.o linux-proc.o
+ i387-nat.o proc-service.o thread-db.o lin-lwp.o \
+ linux-proc.o gcore.o
LOADLIBES = -ldl -rdynamic
XDEPFILES=
NAT_FILE= nm-linux.h
-NATDEPFILES= infptrace.o inftarg.o fork-child.o corelow.o \
+NATDEPFILES= infptrace.o inftarg.o fork-child.o corelow.o gcore.o \
core-aout.o core-regset.o ia64-linux-nat.o linux-proc.o \
proc-service.o thread-db.o lin-lwp.o
NAT_FILE= nm-linux.h
NATDEPFILES= infptrace.o inftarg.o fork-child.o \
- corelow.o core-aout.o m68klinux-nat.o linux-proc.o \
+ corelow.o core-aout.o m68klinux-nat.o linux-proc.o gcore.o \
proc-service.o thread-db.o lin-lwp.o
# The dynamically loaded libthread_db needs access to symbols in the
XM_FILE= xm-linux.h
NAT_FILE= nm-linux.h
NATDEPFILES= infptrace.o inftarg.o fork-child.o mips-linux-nat.o \
- thread-db.o lin-lwp.o proc-service.o linux-proc.o
+ thread-db.o lin-lwp.o proc-service.o linux-proc.o gcore.o
LOADLIBES = -ldl -rdynamic
NAT_FILE= nm-linux.h
NATDEPFILES= infptrace.o inftarg.o fork-child.o corelow.o linux-proc.o \
-core-regset.o ppc-linux-nat.o proc-service.o thread-db.o lin-lwp.o
+ core-regset.o ppc-linux-nat.o proc-service.o thread-db.o lin-lwp.o \
+ gcore.o
LOADLIBES = -ldl -rdynamic
NAT_FILE= nm-linux.h
NATDEPFILES= fork-child.o infptrace.o inftarg.o corelow.o sparc-nat.o \
- proc-service.o thread-db.o lin-lwp.o sparc-linux-nat.o linux-proc.o
+ proc-service.o thread-db.o lin-lwp.o sparc-linux-nat.o \
+ linux-proc.o gcore.o
# The dynamically loaded libthread_db needs access to symbols in the
# gdb executable.
NAT_FILE= nm-sun4sol2.h
NATDEPFILES= corelow.o core-sol2.o solib.o solib-svr4.o solib-legacy.o \
- fork-child.o procfs.o proc-api.o proc-events.o proc-flags.o proc-why.o
+ fork-child.o procfs.o gcore.o \
+ proc-api.o proc-events.o proc-flags.o proc-why.o
# /usr/include/v9 is needed only by core-sol2.c when including
# v9/sys/privregs.h, or rather the headers it in turn includes.
/* *INDENT-OFF* */ /* ATTR_FORMAT confuses indent, avoid running it for now */
/* Basic, host-specific, and target-specific definitions for GDB.
Copyright 1986, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996,
- 1997, 1998, 1999, 2000, 2001
+ 1997, 1998, 1999, 2000, 2001, 2002
Free Software Foundation, Inc.
This file is part of GDB.
bfd_signed_vma data_off,
bfd_signed_vma bss_off);
+/* Take over the 'find_mapped_memory' vector from exec.c. */
+extern void exec_set_find_memory_regions (int (*) (int (*) (CORE_ADDR,
+ unsigned long,
+ int, int, int,
+ void *),
+ void *));
+
/* From findvar.c */
extern int read_relative_register_raw_bytes (int, char *);
/* Work with executable files, for GDB.
Copyright 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997,
- 1998, 1999, 2000, 2001
+ 1998, 1999, 2000, 2001, 2002
Free Software Foundation, Inc.
This file is part of GDB.
return 0;
}
+/* Find mapped memory. */
+
+extern void
+exec_set_find_memory_regions (int (*func) (int (*) (CORE_ADDR,
+ unsigned long,
+ int, int, int,
+ void *),
+ void *))
+{
+ exec_ops.to_find_memory_regions = func;
+}
+
+static char *exec_make_note_section (bfd *, int *);
+
/* Fill in the exec file target vector. Very few entries need to be
defined. */
-void
+static void
init_exec_ops (void)
{
exec_ops.to_shortname = "exec";
exec_ops.to_clone_and_follow_inferior = find_default_clone_and_follow_inferior;
exec_ops.to_stratum = file_stratum;
exec_ops.to_has_memory = 1;
+ exec_ops.to_make_corefile_notes = exec_make_note_section;
exec_ops.to_magic = OPS_MAGIC;
}
add_target (&exec_ops);
}
+
+static char *
+exec_make_note_section (bfd *obfd, int *note_size)
+{
+ struct cleanup *old_chain;
+ char fname[16] = {'\0'};
+ char psargs[80] = {'\0'};
+ char *note_data = NULL;
+
+ if (get_exec_file (0))
+ {
+ strncpy (fname, strrchr (get_exec_file (0), '/') + 1, sizeof (fname));
+ strncpy (psargs, get_exec_file (0),
+ sizeof (psargs));
+ if (get_inferior_args ())
+ {
+ strncat (psargs, " ",
+ sizeof (psargs) - strlen (psargs));
+ strncat (psargs, get_inferior_args (),
+ sizeof (psargs) - strlen (psargs));
+ }
+
+ note_data = (char *) elfcore_write_prpsinfo (obfd,
+ note_data,
+ note_size,
+ fname,
+ psargs);
+ make_cleanup (xfree, note_data);
+ }
+ return note_data;
+}
--- /dev/null
+/* Generate a core file for the inferior process.
+ Copyright 2001, 2002 Free Software Foundation, Inc.
+
+ 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 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. */
+
+#include "defs.h"
+#include "command.h"
+#include "inferior.h"
+#include "gdbcore.h"
+#include "elf-bfd.h"
+#include <sys/procfs.h>
+#include "symfile.h"
+#include "objfiles.h"
+
+static char *default_gcore_target (void);
+static enum bfd_architecture default_gcore_arch (void);
+static unsigned long default_gcore_mach (void);
+static int gcore_memory_sections (bfd *);
+
+/* Function: gcore_command
+ Generate a core file from the inferior process. */
+
+static void
+gcore_command (char *args, int from_tty)
+{
+ struct cleanup *old_chain;
+ char *corefilename, corefilename_buffer[40];
+ asection *note_sec;
+ bfd *obfd;
+ void *note_data = NULL;
+ int note_size = 0;
+
+ /* No use generating a corefile without a target process. */
+ if (!(target_has_execution))
+ noprocess ();
+
+ if (args && *args)
+ corefilename = args;
+ else
+ {
+ /* Default corefile name is "core.PID". */
+ sprintf (corefilename_buffer, "core.%d", PIDGET (inferior_ptid));
+ corefilename = corefilename_buffer;
+ }
+
+ if (info_verbose)
+ fprintf_filtered (gdb_stdout,
+ "Opening corefile '%s' for output.\n", corefilename);
+
+ /* Open the output file. */
+ if (!(obfd = bfd_openw (corefilename, NULL /*default_gcore_target ()*/)))
+ {
+ error ("Failed to open '%s' for output.", corefilename);
+ }
+
+ /* Need a cleanup that will close the file (FIXME: delete it?). */
+ old_chain = make_cleanup_bfd_close (obfd);
+
+ bfd_set_format (obfd, bfd_core);
+ bfd_set_arch_mach (obfd, default_gcore_arch (), default_gcore_mach ());
+
+ /* An external target method must build the notes section. */
+ note_data = (char *) target_make_corefile_notes (obfd, ¬e_size);
+
+ /* Create the note section. */
+ if (note_data != NULL && note_size != 0)
+ {
+ if ((note_sec = bfd_make_section_anyway (obfd, "note0")) == NULL)
+ error ("Failed to create 'note' section for corefile: %s",
+ bfd_errmsg (bfd_get_error ()));
+
+ bfd_set_section_vma (obfd, note_sec, 0);
+ bfd_set_section_flags (obfd, note_sec,
+ SEC_HAS_CONTENTS | SEC_READONLY | SEC_ALLOC);
+ bfd_set_section_alignment (obfd, note_sec, 0);
+ bfd_set_section_size (obfd, note_sec, note_size);
+ }
+
+ /* Now create the memory/load sections. */
+ if (gcore_memory_sections (obfd) == 0)
+ error ("gcore: failed to get corefile memory sections from target.");
+
+ /* Write out the contents of the note section. */
+ if (note_data != NULL && note_size != 0)
+ {
+ if (!bfd_set_section_contents (obfd, note_sec, note_data, 0, note_size))
+ {
+ warning ("writing note section (%s)",
+ bfd_errmsg (bfd_get_error ()));
+ }
+ }
+
+ /* Succeeded. */
+ fprintf_filtered (gdb_stdout,
+ "Saved corefile %s\n", corefilename);
+
+ /* Clean-ups will close the output file and free malloc memory. */
+ do_cleanups (old_chain);
+ return;
+}
+
+static unsigned long
+default_gcore_mach (void)
+{
+#ifdef TARGET_ARCHITECTURE
+ const struct bfd_arch_info * bfdarch = TARGET_ARCHITECTURE;
+
+ if (bfdarch != NULL)
+ return bfdarch->mach;
+#endif
+ if (exec_bfd == NULL)
+ error ("Can't find default bfd machine type (need execfile).");
+
+ return bfd_get_mach (exec_bfd);
+}
+
+static enum bfd_architecture
+default_gcore_arch (void)
+{
+#ifdef TARGET_ARCHITECTURE
+ const struct bfd_arch_info * bfdarch = TARGET_ARCHITECTURE;
+
+ if (bfdarch != NULL)
+ return bfdarch->arch;
+#endif
+ if (exec_bfd == NULL)
+ error ("Can't find bfd architecture for corefile (need execfile).");
+
+ return bfd_get_arch (exec_bfd);
+}
+
+static char *
+default_gcore_target (void)
+{
+ /* FIXME -- this may only work for ELF targets. */
+ if (exec_bfd == NULL)
+ error ("Can't find default bfd target for corefile (need execfile).");
+
+ return bfd_get_target (exec_bfd);
+}
+
+/*
+ * Default method for stack segment (preemptable by target).
+ */
+
+static int (*override_derive_stack_segment) (bfd_vma *, bfd_vma *);
+
+extern void
+preempt_derive_stack_segment (int (*override_func) (bfd_vma *, bfd_vma *))
+{
+ override_derive_stack_segment = override_func;
+}
+
+/* Function: default_derive_stack_segment
+ Derive a reasonable stack segment by unwinding the target stack.
+
+ Returns 0 for failure, 1 for success. */
+
+static int
+default_derive_stack_segment (bfd_vma *bottom, bfd_vma *top)
+{
+ bfd_vma tmp_vma;
+ struct frame_info *fi, *tmp_fi;
+
+ if (bottom == NULL || top == NULL)
+ return 0; /* Paranoia. */
+
+ if (!target_has_stack || !target_has_registers)
+ return 0; /* Can't succeed without stack and registers. */
+
+ if ((fi = get_current_frame ()) == NULL)
+ return 0; /* Can't succeed without current frame. */
+
+ /* Save frame pointer of TOS frame. */
+ *top = fi->frame;
+ /* If current stack pointer is more "inner", use that instead. */
+ if (INNER_THAN (read_sp (), *top))
+ *top = read_sp ();
+
+ /* Find prev-most frame. */
+ while ((tmp_fi = get_prev_frame (fi)) != NULL)
+ fi = tmp_fi;
+
+ /* Save frame pointer of prev-most frame. */
+ *bottom = fi->frame;
+
+ /* Now canonicalize their order, so that 'bottom' is a lower address
+ (as opposed to a lower stack frame). */
+ if (*bottom > *top)
+ {
+ tmp_vma = *top;
+ *top = *bottom;
+ *bottom = tmp_vma;
+ }
+
+ return 1; /* success */
+}
+
+static int
+derive_stack_segment (bfd_vma *bottom, bfd_vma *top)
+{
+ if (override_derive_stack_segment)
+ return override_derive_stack_segment (bottom, top);
+ else
+ return default_derive_stack_segment (bottom, top);
+}
+
+/*
+ * Default method for heap segment (preemptable by target).
+ */
+
+static int (*override_derive_heap_segment) (bfd *, bfd_vma *, bfd_vma *);
+
+extern void
+preempt_derive_heap_segment (int (*override_func) (bfd *,
+ bfd_vma *, bfd_vma *))
+{
+ override_derive_heap_segment = override_func;
+}
+
+/* Function: default_derive_heap_segment
+ Derive a reasonable heap segment by looking at sbrk and
+ the static data sections.
+
+ Returns 0 for failure, 1 for success. */
+
+static int
+default_derive_heap_segment (bfd *abfd, bfd_vma *bottom, bfd_vma *top)
+{
+ bfd_vma top_of_data_memory = 0;
+ bfd_vma top_of_heap = 0;
+ bfd_size_type sec_size;
+ struct value *zero, *sbrk;
+ bfd_vma sec_vaddr;
+ asection *sec;
+
+ if (bottom == NULL || top == NULL)
+ return 0; /* Paranoia. */
+
+ if (!target_has_execution)
+ return 0; /* This function depends on being able
+ to call a function in the inferior. */
+
+ /* Assumption: link map is arranged as follows (low to high addresses):
+ text sections
+ data sections (including bss)
+ heap
+ */
+
+ for (sec = abfd->sections; sec; sec = sec->next)
+ {
+ if (bfd_get_section_flags (abfd, sec) & SEC_DATA ||
+ strcmp (".bss", bfd_get_section_name (abfd, sec)) == 0)
+ {
+ sec_vaddr = bfd_get_section_vma (abfd, sec);
+ sec_size = bfd_get_section_size_before_reloc (sec);
+ if (sec_vaddr + sec_size > top_of_data_memory)
+ top_of_data_memory = sec_vaddr + sec_size;
+ }
+ }
+ /* Now get the top-of-heap by calling sbrk in the inferior. */
+ if ((sbrk = find_function_in_inferior ("sbrk")) == NULL)
+ return 0;
+ if ((zero = value_from_longest (builtin_type_int, (LONGEST) 0)) == NULL)
+ return 0;
+ if ((sbrk = call_function_by_hand (sbrk, 1, &zero)) == NULL)
+ return 0;
+ top_of_heap = value_as_long (sbrk);
+
+ /* Return results. */
+ if (top_of_heap > top_of_data_memory)
+ {
+ *bottom = top_of_data_memory;
+ *top = top_of_heap;
+ return 1; /* success */
+ }
+ else
+ return 0; /* No additional heap space needs to be saved. */
+}
+
+static int
+derive_heap_segment (bfd *abfd, bfd_vma *bottom, bfd_vma *top)
+{
+ if (override_derive_heap_segment)
+ return override_derive_heap_segment (abfd, bottom, top);
+ else
+ return default_derive_heap_segment (abfd, bottom, top);
+}
+
+/* ARGSUSED */
+static void
+make_output_phdrs (bfd *obfd, asection *osec, void *ignored)
+{
+ int p_flags = 0;
+ int p_type;
+
+ /* FIXME: these constants may only be applicable for ELF. */
+ if (strncmp (osec->name, "load", 4) == 0)
+ p_type = PT_LOAD;
+ else
+ p_type = PT_NOTE;
+
+ p_flags |= PF_R; /* Segment is readable. */
+ if (!(bfd_get_section_flags (obfd, osec) & SEC_READONLY))
+ p_flags |= PF_W; /* Segment is writable. */
+ if (bfd_get_section_flags (obfd, osec) & SEC_CODE)
+ p_flags |= PF_X; /* Segment is executable. */
+
+ bfd_record_phdr (obfd, p_type, 1, p_flags, 0, 0,
+ 0, 0, 1, &osec);
+}
+
+static asection *
+make_mem_sec (bfd *obfd,
+ bfd_vma addr,
+ bfd_size_type size,
+ unsigned int flags,
+ unsigned int alignment)
+{
+ asection *osec;
+
+ if ((osec = bfd_make_section_anyway (obfd, "load")) == NULL)
+ {
+ warning ("Couldn't make gcore segment: %s",
+ bfd_errmsg (bfd_get_error ()));
+ return NULL;
+ }
+
+ if (info_verbose)
+ {
+ fprintf_filtered (gdb_stdout,
+ "Save segment, %ld bytes at 0x%s\n",
+ size, paddr_nz (addr));
+ }
+
+ bfd_set_section_size (obfd, osec, size);
+ bfd_set_section_vma (obfd, osec, addr);
+ osec->lma = 0; /* FIXME: there should be a macro for this! */
+ bfd_set_section_alignment (obfd, osec, alignment);
+ bfd_set_section_flags (obfd, osec,
+ flags | SEC_LOAD | SEC_ALLOC | SEC_HAS_CONTENTS);
+ return osec;
+}
+
+static int
+gcore_create_callback (CORE_ADDR vaddr,
+ unsigned long size,
+ int read, int write, int exec,
+ void *data)
+{
+ flagword flags = 0;
+
+ if (write == 0)
+ {
+ flags |= SEC_READONLY;
+ /* Set size == zero for readonly sections. */
+ size = 0;
+ }
+ if (exec)
+ {
+ flags |= SEC_CODE;
+ }
+ else
+ {
+ flags |= SEC_DATA;
+ }
+
+ return ((make_mem_sec ((bfd *) data, vaddr, size, flags, 0)) == NULL);
+}
+
+static int
+objfile_find_memory_regions (int (*func) (CORE_ADDR,
+ unsigned long,
+ int, int, int,
+ void *),
+ void *obfd)
+{
+ /* Use objfile data to create memory sections. */
+ struct objfile *objfile;
+ struct obj_section *objsec;
+ bfd_vma temp_bottom, temp_top;
+
+ /* Call callback function for each objfile section. */
+ ALL_OBJSECTIONS (objfile, objsec)
+ {
+ bfd *ibfd = objfile->obfd;
+ asection *isec = objsec->the_bfd_section;
+ flagword flags = bfd_get_section_flags (ibfd, isec);
+ int ret;
+
+ if ((flags & SEC_ALLOC) || (flags & SEC_LOAD))
+ {
+ int size = bfd_section_size (ibfd, isec);
+ int ret;
+
+ if ((ret = (*func) (objsec->addr,
+ bfd_section_size (ibfd, isec),
+ 1, /* All sections will be readable. */
+ (flags & SEC_READONLY) == 0, /* writable */
+ (flags & SEC_CODE) != 0, /* executable */
+ obfd)) != 0)
+ return ret;
+ }
+ }
+
+ /* Make a stack segment. */
+ if (derive_stack_segment (&temp_bottom, &temp_top))
+ (*func) (temp_bottom,
+ temp_top - temp_bottom,
+ 1, /* Stack section will be readable */
+ 1, /* Stack section will be writable */
+ 0, /* Stack section will not be executable */
+ obfd);
+
+ /* Make a heap segment. */
+ if (derive_heap_segment (exec_bfd, &temp_bottom, &temp_top))
+ (*func) (temp_bottom,
+ temp_top - temp_bottom,
+ 1, /* Heap section will be readable */
+ 1, /* Heap section will be writable */
+ 0, /* Heap section will not be executable */
+ obfd);
+ return 0;
+}
+
+static void
+gcore_copy_callback (bfd *obfd, asection *osec, void *ignored)
+{
+ bfd_size_type size = bfd_section_size (obfd, osec);
+ struct cleanup *old_chain = NULL;
+ void *memhunk;
+
+ if (size == 0)
+ return; /* Read-only sections are marked as zero-size.
+ We don't have to copy their contents. */
+ if (strncmp ("load", bfd_get_section_name (obfd, osec), 4) != 0)
+ return; /* Only interested in "load" sections. */
+
+ if ((memhunk = xmalloc (size)) == NULL)
+ error ("Not enough memory to create corefile.");
+ old_chain = make_cleanup (xfree, memhunk);
+
+ if (target_read_memory (bfd_section_vma (obfd, osec),
+ memhunk, size) != 0)
+ warning ("Memory read failed for corefile section, %ld bytes at 0x%s\n",
+ (long) size, paddr (bfd_section_vma (obfd, osec)));
+ if (!bfd_set_section_contents (obfd, osec, memhunk, 0, size))
+ warning ("Failed to write corefile contents (%s).",
+ bfd_errmsg (bfd_get_error ()));
+
+ do_cleanups (old_chain); /* frees the xmalloc buffer */
+}
+
+static int
+gcore_memory_sections (bfd *obfd)
+{
+ if (target_find_memory_regions (gcore_create_callback, obfd) != 0)
+ return 0; /* FIXME error return/msg? */
+
+ /* Record phdrs for section-to-segment mapping. */
+ bfd_map_over_sections (obfd, make_output_phdrs, NULL);
+
+ /* Copy memory region contents. */
+ bfd_map_over_sections (obfd, gcore_copy_callback, NULL);
+
+ return 1; /* success */
+}
+
+void
+_initialize_gcore (void)
+{
+ add_com ("generate-core-file", class_files, gcore_command,
+ "Save a core file with the current state of the debugged process.\n\
+Argument is optional filename. Default filename is 'core.<process_id>'.");
+
+ add_com_alias ("gcore", "generate-core-file", class_files, 1);
+ exec_set_find_memory_regions (objfile_find_memory_regions);
+}
/* Target-vector operations for controlling Unix child processes, for GDB.
- Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000
+ Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1998, 1999,
+ 2000, 2002
Free Software Foundation, Inc.
Contributed by Cygnus Support.
child_ops.to_magic = OPS_MAGIC;
}
+/* Take over the 'find_mapped_memory' vector from inftarg.c. */
+extern void
+inftarg_set_find_memory_regions (int (*func) (int (*) (CORE_ADDR,
+ unsigned long,
+ int, int, int,
+ void *),
+ void *))
+{
+ child_ops.to_find_memory_regions = func;
+}
+
+/* Take over the 'make_corefile_notes' vector from inftarg.c. */
+extern void
+inftarg_set_make_corefile_notes (char * (*func) (bfd *, int *))
+{
+ child_ops.to_make_corefile_notes = func;
+}
+
void
_initialize_inftarg (void)
{
-/* Generate a core file for the inferior process -- Linux version.
- Copyright 2001 Free Software Foundation, Inc.
+/* Linux-specific methods for using the /proc file system.
+ Copyright 2001, 2002 Free Software Foundation, Inc.
This file is part of GDB.
Boston, MA 02111-1307, USA. */
#include "defs.h"
+#include "inferior.h"
#include <sys/param.h> /* for MAXPATHLEN */
+#include <sys/procfs.h>
+#include "gregset.h" /* for gregset */
+#include "gdbcore.h" /* for get_exec_file */
+#include "gdbthread.h" /* for struct thread_info etc. */
+#include "elf-bfd.h"
+
+/* Function: child_pid_to_exec_file
+ *
+ * Accepts an integer pid
+ * Returns a string representing a file that can be opened
+ * to get the symbols for the child process.
+ */
char *
child_pid_to_exec_file (int pid)
/* FIXME use readlink to get the real name. */
return fname;
}
+
+/* Function: linux_find_memory_regions
+ *
+ * Fills the "to_find_memory_regions" target vector.
+ * Lists the memory regions in the inferior for a corefile.
+ */
+
+static int
+linux_find_memory_regions (int (*func) (CORE_ADDR,
+ unsigned long,
+ int, int, int,
+ void *),
+ void *obfd)
+{
+ long long pid = PIDGET (inferior_ptid);
+ char procfilename[MAXPATHLEN];
+ FILE *procfile;
+ long long addr, endaddr, size, offset, inode;
+ char perms[8], dev[8], filename[MAXPATHLEN];
+ int read, write, exec;
+ int ret;
+
+ /* Compose the filename for the /proc memory map, and open it. */
+ sprintf (procfilename, "/proc/%lld/maps", pid);
+ if ((procfile = fopen (procfilename, "r")) == NULL)
+ error ("Could not open %s\n", procfilename);
+
+ if (info_verbose)
+ fprintf_filtered (gdb_stdout,
+ "Reading memory regions from %s\n", procfilename);
+
+ /* Read the first memory segment descriptor from the maps file. */
+ ret = fscanf (procfile, "%llx-%llx %s %llx %s %llx",
+ &addr, &endaddr, perms, &offset, dev, &inode);
+ if (inode)
+ fscanf (procfile, " %s\n", filename);
+ else
+ {
+ filename[0] = '\0';
+ fscanf (procfile, "\n");
+ }
+
+ /* Now iterate until end-of-file. */
+ while (ret > 0 && ret != EOF)
+ {
+ size = endaddr - addr;
+
+ /* Get the segment's permissions. */
+ read = (strchr (perms, 'r') != 0);
+ write = (strchr (perms, 'w') != 0);
+ exec = (strchr (perms, 'x') != 0);
+
+ if (info_verbose)
+ {
+ fprintf_filtered (gdb_stdout,
+ "Save segment, %lld bytes at 0x%s (%c%c%c)",
+ size, paddr_nz (addr),
+ read ? 'r' : ' ',
+ write ? 'w' : ' ',
+ exec ? 'x' : ' ');
+ if (filename && filename[0])
+ fprintf_filtered (gdb_stdout,
+ " for %s", filename);
+ fprintf_filtered (gdb_stdout, "\n");
+ }
+
+ /* Invoke the callback function to create the corefile segment. */
+ func (addr, size, read, write, exec, obfd);
+
+ /* Read the next memory region. */
+ filename[0] = '\0';
+ ret = fscanf (procfile, "%llx-%llx %s %llx %s %llx",
+ &addr, &endaddr, perms, &offset, dev, &inode);
+ if (inode)
+ fscanf (procfile, " %s\n", filename);
+ else
+ {
+ filename[0] = '\0';
+ fscanf (procfile, "\n");
+ }
+ }
+
+ fclose (procfile);
+ return 0;
+}
+
+/* Function: linux_do_thread_registers
+ *
+ * Records the thread's register state for the corefile note section.
+ */
+
+static char *
+linux_do_thread_registers (bfd *obfd, ptid_t ptid,
+ char *note_data, int *note_size)
+{
+ gdb_gregset_t gregs;
+ gdb_fpregset_t fpregs;
+#ifdef HAVE_PTRACE_GETFPXREGS
+ gdb_fpxregset_t fpxregs;
+#endif
+ unsigned long merged_pid = ptid_get_tid (ptid) << 16 | ptid_get_pid (ptid);
+
+ fill_gregset (&gregs, -1);
+ note_data = (char *) elfcore_write_prstatus (obfd,
+ note_data,
+ note_size,
+ merged_pid,
+ stop_signal,
+ &gregs);
+
+ fill_fpregset (&fpregs, -1);
+ note_data = (char *) elfcore_write_prfpreg (obfd,
+ note_data,
+ note_size,
+ &fpregs,
+ sizeof (fpregs));
+#ifdef HAVE_PTRACE_GETFPXREGS
+ fill_fpxregset (&fpxregs, -1);
+ note_data = (char *) elfcore_write_prxfpreg (obfd,
+ note_data,
+ note_size,
+ &fpxregs,
+ sizeof (fpxregs));
+#endif
+ return note_data;
+}
+
+struct linux_corefile_thread_data {
+ bfd *obfd;
+ char *note_data;
+ int *note_size;
+};
+
+/* Function: linux_corefile_thread_callback
+ *
+ * Called by gdbthread.c once per thread.
+ * Records the thread's register state for the corefile note section.
+ */
+
+static int
+linux_corefile_thread_callback (struct thread_info *ti, void *data)
+{
+ struct linux_corefile_thread_data *args = data;
+ ptid_t saved_ptid = inferior_ptid;
+
+ inferior_ptid = ti->ptid;
+ registers_changed ();
+ target_fetch_registers (-1); /* FIXME should not be necessary;
+ fill_gregset should do it automatically. */
+ args->note_data = linux_do_thread_registers (args->obfd,
+ ti->ptid,
+ args->note_data,
+ args->note_size);
+ inferior_ptid = saved_ptid;
+ registers_changed ();
+ target_fetch_registers (-1); /* FIXME should not be necessary;
+ fill_gregset should do it automatically. */
+ return 0;
+}
+
+/* Function: linux_make_note_section
+ *
+ * Fills the "to_make_corefile_note" target vector.
+ * Builds the note section for a corefile, and returns it
+ * in a malloc buffer.
+ */
+
+static char *
+linux_make_note_section (bfd *obfd, int *note_size)
+{
+ struct linux_corefile_thread_data thread_args;
+ struct cleanup *old_chain;
+ char fname[16] = {'\0'};
+ char psargs[80] = {'\0'};
+ char *note_data = NULL;
+ ptid_t current_ptid = inferior_ptid;
+
+ if (get_exec_file (0))
+ {
+ strncpy (fname, strrchr (get_exec_file (0), '/') + 1, sizeof (fname));
+ strncpy (psargs, get_exec_file (0),
+ sizeof (psargs));
+ if (get_inferior_args ())
+ {
+ strncat (psargs, " ",
+ sizeof (psargs) - strlen (psargs));
+ strncat (psargs, get_inferior_args (),
+ sizeof (psargs) - strlen (psargs));
+ }
+ note_data = (char *) elfcore_write_prpsinfo (obfd,
+ note_data,
+ note_size,
+ fname,
+ psargs);
+ }
+
+ /* Dump information for threads. */
+ thread_args.obfd = obfd;
+ thread_args.note_data = note_data;
+ thread_args.note_size = note_size;
+ iterate_over_threads (linux_corefile_thread_callback, &thread_args);
+ if (thread_args.note_data == note_data)
+ {
+ /* iterate_over_threads didn't come up with any threads;
+ just use inferior_ptid. */
+ note_data = linux_do_thread_registers (obfd, inferior_ptid,
+ note_data, note_size);
+ }
+ else
+ {
+ note_data = thread_args.note_data;
+ }
+
+ make_cleanup (xfree, note_data);
+ return note_data;
+}
+
+void
+_initialize_linux_proc (void)
+{
+ extern void inftarg_set_find_memory_regions ();
+ extern void inftarg_set_make_corefile_notes ();
+
+ inftarg_set_find_memory_regions (linux_find_memory_regions);
+ inftarg_set_make_corefile_notes (linux_make_note_section);
+}
/* Machine independent support for SVR4 /proc (process file system) for GDB.
- Copyright 1999, 2000, 2001 Free Software Foundation, Inc.
+ Copyright 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
Written by Michael Snyder at Cygnus Solutions.
Based on work by Fred Fish, Stu Grossman, Geoff Noer, and others.
void procfs_find_new_threads (void);
char *procfs_pid_to_str (ptid_t);
+static int proc_find_memory_regions (int (*) (CORE_ADDR,
+ unsigned long,
+ int, int, int,
+ void *),
+ void *);
+
+static char * procfs_make_note_section (bfd *, int *);
+
struct target_ops procfs_ops; /* the target vector */
static void
init_procfs_ops (void)
{
- procfs_ops.to_shortname = "procfs";
- procfs_ops.to_longname = "Unix /proc child process";
- procfs_ops.to_doc =
+ 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_can_run = procfs_can_run;
- procfs_ops.to_create_inferior = procfs_create_inferior;
- procfs_ops.to_kill = procfs_kill_inferior;
- procfs_ops.to_mourn_inferior = procfs_mourn_inferior;
- procfs_ops.to_attach = procfs_attach;
- procfs_ops.to_detach = procfs_detach;
- procfs_ops.to_wait = procfs_wait;
- procfs_ops.to_resume = procfs_resume;
- procfs_ops.to_prepare_to_store = procfs_prepare_to_store;
- procfs_ops.to_fetch_registers = procfs_fetch_registers;
- procfs_ops.to_store_registers = procfs_store_registers;
- procfs_ops.to_xfer_memory = procfs_xfer_memory;
- procfs_ops.to_insert_breakpoint = memory_insert_breakpoint;
- procfs_ops.to_remove_breakpoint = memory_remove_breakpoint;
- procfs_ops.to_notice_signals = procfs_notice_signals;
- procfs_ops.to_files_info = procfs_files_info;
- procfs_ops.to_stop = procfs_stop;
-
- procfs_ops.to_terminal_init = terminal_init_inferior;
- procfs_ops.to_terminal_inferior = terminal_inferior;
+ procfs_ops.to_open = procfs_open;
+ procfs_ops.to_can_run = procfs_can_run;
+ procfs_ops.to_create_inferior = procfs_create_inferior;
+ procfs_ops.to_kill = procfs_kill_inferior;
+ procfs_ops.to_mourn_inferior = procfs_mourn_inferior;
+ procfs_ops.to_attach = procfs_attach;
+ procfs_ops.to_detach = procfs_detach;
+ procfs_ops.to_wait = procfs_wait;
+ procfs_ops.to_resume = procfs_resume;
+ procfs_ops.to_prepare_to_store = procfs_prepare_to_store;
+ procfs_ops.to_fetch_registers = procfs_fetch_registers;
+ procfs_ops.to_store_registers = procfs_store_registers;
+ procfs_ops.to_xfer_memory = procfs_xfer_memory;
+ procfs_ops.to_insert_breakpoint = memory_insert_breakpoint;
+ procfs_ops.to_remove_breakpoint = memory_remove_breakpoint;
+ procfs_ops.to_notice_signals = procfs_notice_signals;
+ procfs_ops.to_files_info = procfs_files_info;
+ procfs_ops.to_stop = procfs_stop;
+
+ 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_find_new_threads = procfs_find_new_threads;
- procfs_ops.to_thread_alive = procfs_thread_alive;
- procfs_ops.to_pid_to_str = procfs_pid_to_str;
-
- procfs_ops.to_has_all_memory = 1;
- procfs_ops.to_has_memory = 1;
- procfs_ops.to_has_execution = 1;
- procfs_ops.to_has_stack = 1;
- procfs_ops.to_has_registers = 1;
- procfs_ops.to_stratum = process_stratum;
- procfs_ops.to_has_thread_control = tc_schedlock;
- procfs_ops.to_magic = OPS_MAGIC;
+ procfs_ops.to_terminal_ours = terminal_ours;
+ procfs_ops.to_terminal_info = child_terminal_info;
+
+ procfs_ops.to_find_new_threads = procfs_find_new_threads;
+ procfs_ops.to_thread_alive = procfs_thread_alive;
+ procfs_ops.to_pid_to_str = procfs_pid_to_str;
+
+ procfs_ops.to_has_all_memory = 1;
+ procfs_ops.to_has_memory = 1;
+ procfs_ops.to_has_execution = 1;
+ procfs_ops.to_has_stack = 1;
+ procfs_ops.to_has_registers = 1;
+ procfs_ops.to_stratum = process_stratum;
+ procfs_ops.to_has_thread_control = tc_schedlock;
+ procfs_ops.to_find_memory_regions = proc_find_memory_regions;
+ procfs_ops.to_make_corefile_notes = procfs_make_note_section;
+ procfs_ops.to_magic = OPS_MAGIC;
}
/* =================== END, TARGET_OPS "MODULE" =================== */
return iterate_over_mappings (pi, func, pi, solib_mappings_callback);
}
+/*
+ * Function: find_memory_regions_callback
+ *
+ * Implements the to_find_memory_regions method.
+ * Calls an external function for each memory region.
+ * External function will have the signiture:
+ *
+ * int callback (CORE_ADDR vaddr,
+ * unsigned long size,
+ * int read, int write, int execute,
+ * void *data);
+ *
+ * Returns the integer value returned by the callback.
+ */
+
+static int
+find_memory_regions_callback (struct prmap *map,
+ int (*func) (CORE_ADDR,
+ unsigned long,
+ int, int, int,
+ void *),
+ void *data)
+{
+ return (*func) (host_pointer_to_address ((void *) map->pr_vaddr),
+ map->pr_size,
+ (map->pr_mflags & MA_READ) != 0,
+ (map->pr_mflags & MA_WRITE) != 0,
+ (map->pr_mflags & MA_EXEC) != 0,
+ data);
+}
+
+/*
+ * Function: proc_find_memory_regions
+ *
+ * External interface. Calls a callback function once for each
+ * mapped memory region in the child process, passing as arguments
+ * CORE_ADDR virtual_address,
+ * unsigned long size,
+ * int read, TRUE if region is readable by the child
+ * int write, TRUE if region is writable by the child
+ * int execute TRUE if region is executable by the child.
+ *
+ * Stops iterating and returns the first non-zero value
+ * returned by the callback.
+ */
+
+static int
+proc_find_memory_regions (int (*func) (CORE_ADDR,
+ unsigned long,
+ int, int, int,
+ void *),
+ void *data)
+{
+ procinfo *pi = find_procinfo_or_die (PIDGET (inferior_ptid), 0);
+
+ return iterate_over_mappings (pi, func, data,
+ find_memory_regions_callback);
+}
+
/*
* Function: mappingflags
*
{
return pid_to_ptid (procinfo_list ? procinfo_list->pid : -1);
}
+
+/* =================== GCORE .NOTE "MODULE" =================== */
+
+static char *
+procfs_do_thread_registers (bfd *obfd, ptid_t ptid,
+ char *note_data, int *note_size)
+{
+ gdb_gregset_t gregs;
+ gdb_fpregset_t fpregs;
+ unsigned long merged_pid;
+
+ merged_pid = TIDGET (ptid) << 16 | PIDGET (ptid);
+
+ fill_gregset (&gregs, -1);
+ note_data = (char *) elfcore_write_prstatus (obfd,
+ note_data,
+ note_size,
+ merged_pid,
+ stop_signal,
+ &gregs);
+ fill_fpregset (&fpregs, -1);
+ note_data = (char *) elfcore_write_prfpreg (obfd,
+ note_data,
+ note_size,
+ &fpregs,
+ sizeof (fpregs));
+ return note_data;
+}
+
+struct procfs_corefile_thread_data {
+ bfd *obfd;
+ char *note_data;
+ int *note_size;
+};
+
+static int
+procfs_corefile_thread_callback (struct thread_info *ti, void *data)
+{
+ struct procfs_corefile_thread_data *args = data;
+ procinfo *pi = find_procinfo (PIDGET (ti->ptid), TIDGET (ti->ptid));
+
+ if (pi != NULL && TIDGET (ti->ptid) != 0)
+ {
+ ptid_t saved_ptid = inferior_ptid;
+ inferior_ptid = ti->ptid;
+ args->note_data = procfs_do_thread_registers (args->obfd, ti->ptid,
+ args->note_data,
+ args->note_size);
+ inferior_ptid = saved_ptid;
+ }
+ return 0;
+}
+
+static char *
+procfs_make_note_section (bfd *obfd, int *note_size)
+{
+ struct cleanup *old_chain;
+ gdb_gregset_t gregs;
+ gdb_fpregset_t fpregs;
+ char fname[16] = {'\0'};
+ char psargs[80] = {'\0'};
+ procinfo *pi = find_procinfo_or_die (PIDGET (inferior_ptid), 0);
+ char *note_data = NULL;
+ struct procfs_corefile_thread_data thread_args;
+
+ if (get_exec_file (0))
+ {
+ strncpy (fname, strrchr (get_exec_file (0), '/') + 1, sizeof (fname));
+ strncpy (psargs, get_exec_file (0),
+ sizeof (psargs));
+ if (get_inferior_args ())
+ {
+ strncat (psargs, " ",
+ sizeof (psargs) - strlen (psargs));
+ strncat (psargs, get_inferior_args (),
+ sizeof (psargs) - strlen (psargs));
+ }
+ }
+
+ note_data = (char *) elfcore_write_prpsinfo (obfd,
+ note_data,
+ note_size,
+ fname,
+ psargs);
+
+ thread_args.obfd = obfd;
+ thread_args.note_data = note_data;
+ thread_args.note_size = note_size;
+ iterate_over_threads (procfs_corefile_thread_callback, &thread_args);
+ if (thread_args.note_data == note_data)
+ {
+ /* iterate_over_threads didn't come up with any threads;
+ just use inferior_ptid. */
+ note_data = procfs_do_thread_registers (obfd, inferior_ptid,
+ note_data, note_size);
+ }
+ else
+ {
+ note_data = thread_args.note_data;
+ }
+
+ make_cleanup (xfree, note_data);
+ return note_data;
+}
+
+/* =================== END GCORE .NOTE "MODULE" =================== */
/* Low level interface for debugging Solaris threads for GDB, the GNU debugger.
- Copyright 1996, 1997, 1998, 1999, 2000, 2001
+ Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002
Free Software Foundation, Inc.
This file is part of GDB.
TD_SIGNO_MASK, TD_THR_ANY_USER_FLAGS);
}
+static int
+sol_find_memory_regions (int (*func) (CORE_ADDR,
+ unsigned long,
+ int, int, int,
+ void *),
+ void *data)
+{
+ return procfs_ops.to_find_memory_regions (func, data);
+}
+
+static char *
+sol_make_note_section (bfd *obfd, int *note_size)
+{
+ return procfs_ops.to_make_corefile_notes (obfd, note_size);
+}
+
static int
ignore (CORE_ADDR addr, char *contents)
{
sol_thread_ops.to_has_thread_control = tc_none;
sol_thread_ops.to_sections = 0;
sol_thread_ops.to_sections_end = 0;
+ sol_thread_ops.to_find_memory_regions = sol_find_memory_regions;
+ sol_thread_ops.to_make_corefile_notes = sol_make_note_section;
sol_thread_ops.to_magic = OPS_MAGIC;
}
/* Select target systems and architectures at runtime for GDB.
Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
- 2000, 2001 Free Software Foundation, Inc.
+ 2000, 2001, 2002
+ Free Software Foundation, Inc.
Contributed by Cygnus Support.
This file is part of GDB.
INHERIT (to_is_async_p, t);
INHERIT (to_async, t);
INHERIT (to_async_mask_value, t);
+ INHERIT (to_find_memory_regions, t);
+ INHERIT (to_make_corefile_notes, t);
INHERIT (to_magic, t);
#undef INHERIT
/* This space intentionally left blank. */
}
+/* Error-catcher for target_find_memory_regions */
+/* ARGSUSED */
+static int dummy_find_memory_regions (int (*ignore1) (), void *ignore2)
+{
+ error ("No target.");
+ return 0;
+}
+
+/* Error-catcher for target_make_corefile_notes */
+/* ARGSUSED */
+static char * dummy_make_corefile_notes (bfd *ignore1, int *ignore2)
+{
+ error ("No target.");
+ return NULL;
+}
+
/* Set up the handful of non-empty slots needed by the dummy target
vector. */
dummy_target.to_clone_and_follow_inferior = find_default_clone_and_follow_inferior;
dummy_target.to_pid_to_str = normal_pid_to_str;
dummy_target.to_stratum = dummy_stratum;
+ dummy_target.to_find_memory_regions = dummy_find_memory_regions;
+ dummy_target.to_make_corefile_notes = dummy_make_corefile_notes;
dummy_target.to_magic = OPS_MAGIC;
}
\f
/* Interface between GDB and target environments, including files and processes
Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
- 2000, 2001 Free Software Foundation, Inc.
+ 2000, 2001, 2002 Free Software Foundation, Inc.
Contributed by Cygnus Support. Written by John Gilmore.
This file is part of GDB.
void (*to_async) (void (*cb) (enum inferior_event_type, void *context),
void *context);
int to_async_mask_value;
+ int (*to_find_memory_regions) (int (*) (CORE_ADDR,
+ unsigned long,
+ int, int, int,
+ void *),
+ void *);
+ char * (*to_make_corefile_notes) (bfd *, int *);
int to_magic;
/* Need sub-structure for target machine related rather than comm related?
*/
#define target_pid_to_exec_file(pid) \
(current_target.to_pid_to_exec_file) (pid)
+/*
+ * Iterator function for target memory regions.
+ * Calls a callback function once for each memory region 'mapped'
+ * in the child process. Defined as a simple macro rather than
+ * as a function macro so that it can be tested for nullity.
+ */
+
+#define target_find_memory_regions(FUNC, DATA) \
+ (current_target.to_find_memory_regions) (FUNC, DATA)
+
+/*
+ * Compose corefile .note section.
+ */
+
+#define target_make_corefile_notes(BFD, SIZE_P) \
+ (current_target.to_make_corefile_notes) (BFD, SIZE_P)
+
/* Hook to call target-dependent code after reading in a new symbol table. */
#ifndef TARGET_SYMFILE_POSTREAD
projects / thirdparty / binutils-gdb.git / commitdiff
