binutils-gdb/gdb/coff-solib.c

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/* Handle COFF SVR3 shared libraries for GDB, the GNU Debugger.
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Copyright 1993, 1994, 1998, 1999, 2000 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
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.
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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 "frame.h"
#include "bfd.h"
#include "gdbcore.h"
#include "symtab.h"
#include "symfile.h"
#include "objfiles.h"
/*
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GLOBAL FUNCTION
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coff_solib_add -- add a shared library files to the symtab list. We
examine the `.lib' section of the exec file and determine the names of
the shared libraries.
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This function is responsible for discovering those names and
addresses, and saving sufficient information about them to allow
their symbols to be read at a later time.
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SYNOPSIS
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void coff_solib_add (char *arg_string, int from_tty,
Approved by kev@cygnus.com ChangeLog entry: 2001-11-01 Fred Fish <fnf@redhat.com> * coff-solib.c (coff_solib_add): Add new readsyms arg. * irix5-nat.c (solib_add): Ditto. * osfsolib.c (solib_add): Ditto. * pa64solib.c (pa64_solib_add): Ditto. * pa64solib.c (add_to_solist): Ditto. * pa64solib.c (read_dld_descriptor): Ditto. * solib.c (solib_add): Ditto. * somsolib.c (som_solib_add): Ditto. * win32-nat.c (child_solib_add): Ditto. * xcoffsolib.c (solib_add): Ditto. * coff-solib.h (coff_solib_add): Add new readsyms arg to prototype. * pa64solib.c (add_to_solist): Ditto. * pa64solib.c (read_dld_descriptor): Ditto. * pa64solib.h (pa64_solib_add): Ditto. * solib.h (solib_add): Ditto. * somsolib.h (som_solib_add): Ditto. * config/i386/tm-cygwin.h (child_solib_add): Ditto. * coff-solib.c (coff_solib_add): If readsyms is zero don't read symbols but do any other needed work for shared libs. * irix5-nat.c: Ditto. * osfsolib.c (solib_add): Ditto. * solib.c (solib_add): Ditto. * win32-nat.c (child_solib_add): Ditto. * xcoffsolib.c (solib_add): Ditto. * irix5-nat.c (sharedlibrary_command): Pass 1 as readsyms to solib_add to force reading of shared library symbols. * osfsolib.c (sharedlibrary_command;): Ditto. * pa64solib.c (pa64_solib_sharedlibrary_command): Ditto. * solib.c (sharedlibrary_command): Ditto. * somsolib.c (som_solib_sharedlibrary_command): Ditto. * xcoffsolib.c (sharedlibrary_command): Ditto. * coff-solib.c (coff_solib_create_inferior_hook): Call solib_add unconditionally with auto_solib_add. * irix5-nat.c (solib_create_inferior_hook): Ditto. * osfsolib.c (solib_create_inferior_hook): Ditto. * solib.c (solib_create_inferior_hook): Ditto. * solib-osf.c (osf_solib_create_inferior_hook): Ditto. * solib-svr4.c (enable_break): Ditto. * solib-sunos.c (sunos_solib_create_inferior_hook): Ditto. * corelow.c (solib_add_stub): Add auto_solib_add to args passed via SOLIB_ADD. * sol-thread.c (sol_thread_attach): Ditto. * config/rs6000/nm-rs6000.h (SOLIB_ADD): Ditto. * infcmd.c (attach_command): Remove auto_solib_add decl. Call SOLIB_ADD directly with auto_solib_add. * infrun.c (handle_inferior_event): Ditto. * coff-solib.h (SOLIB_ADD): Add readsyms arg. * pa64solib.h (SOLIB_ADD): Ditto. * solib.h (SOLIB_ADD): Ditto. * somsolib.h (SOLIB_ADD): Ditto. * config/i386/tm-cygwin.h (SOLIB_ADD): Ditto. * fork-child.c (clone_and_follow_inferior): Remove unused auto_solib_add decl. * pa64solib.c (pa64_solib_add): Call add_to_solist with readsyms. (read_dld_descriptor): Ditto. (pa64_solib_add): Call read_dld_descriptor with readsyms. (pa64_solib_in_dynamic_linker): Ditto. * corelow.c (symfile.h): Need this for auto_solib_add declaration. * sol-thread.c (symfile.h): Ditto. Approved by eliz@is.elta.co.il doc/ChangeLog entry: 2001-11-01 Fred Fish <fnf@redhat.com> * gdbint.texinfo (SOLIB_ADD): Document additional new "readsyms" arg.
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struct target_ops *target, int readsyms)
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DESCRIPTION
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*/
void
Approved by kev@cygnus.com ChangeLog entry: 2001-11-01 Fred Fish <fnf@redhat.com> * coff-solib.c (coff_solib_add): Add new readsyms arg. * irix5-nat.c (solib_add): Ditto. * osfsolib.c (solib_add): Ditto. * pa64solib.c (pa64_solib_add): Ditto. * pa64solib.c (add_to_solist): Ditto. * pa64solib.c (read_dld_descriptor): Ditto. * solib.c (solib_add): Ditto. * somsolib.c (som_solib_add): Ditto. * win32-nat.c (child_solib_add): Ditto. * xcoffsolib.c (solib_add): Ditto. * coff-solib.h (coff_solib_add): Add new readsyms arg to prototype. * pa64solib.c (add_to_solist): Ditto. * pa64solib.c (read_dld_descriptor): Ditto. * pa64solib.h (pa64_solib_add): Ditto. * solib.h (solib_add): Ditto. * somsolib.h (som_solib_add): Ditto. * config/i386/tm-cygwin.h (child_solib_add): Ditto. * coff-solib.c (coff_solib_add): If readsyms is zero don't read symbols but do any other needed work for shared libs. * irix5-nat.c: Ditto. * osfsolib.c (solib_add): Ditto. * solib.c (solib_add): Ditto. * win32-nat.c (child_solib_add): Ditto. * xcoffsolib.c (solib_add): Ditto. * irix5-nat.c (sharedlibrary_command): Pass 1 as readsyms to solib_add to force reading of shared library symbols. * osfsolib.c (sharedlibrary_command;): Ditto. * pa64solib.c (pa64_solib_sharedlibrary_command): Ditto. * solib.c (sharedlibrary_command): Ditto. * somsolib.c (som_solib_sharedlibrary_command): Ditto. * xcoffsolib.c (sharedlibrary_command): Ditto. * coff-solib.c (coff_solib_create_inferior_hook): Call solib_add unconditionally with auto_solib_add. * irix5-nat.c (solib_create_inferior_hook): Ditto. * osfsolib.c (solib_create_inferior_hook): Ditto. * solib.c (solib_create_inferior_hook): Ditto. * solib-osf.c (osf_solib_create_inferior_hook): Ditto. * solib-svr4.c (enable_break): Ditto. * solib-sunos.c (sunos_solib_create_inferior_hook): Ditto. * corelow.c (solib_add_stub): Add auto_solib_add to args passed via SOLIB_ADD. * sol-thread.c (sol_thread_attach): Ditto. * config/rs6000/nm-rs6000.h (SOLIB_ADD): Ditto. * infcmd.c (attach_command): Remove auto_solib_add decl. Call SOLIB_ADD directly with auto_solib_add. * infrun.c (handle_inferior_event): Ditto. * coff-solib.h (SOLIB_ADD): Add readsyms arg. * pa64solib.h (SOLIB_ADD): Ditto. * solib.h (SOLIB_ADD): Ditto. * somsolib.h (SOLIB_ADD): Ditto. * config/i386/tm-cygwin.h (SOLIB_ADD): Ditto. * fork-child.c (clone_and_follow_inferior): Remove unused auto_solib_add decl. * pa64solib.c (pa64_solib_add): Call add_to_solist with readsyms. (read_dld_descriptor): Ditto. (pa64_solib_add): Call read_dld_descriptor with readsyms. (pa64_solib_in_dynamic_linker): Ditto. * corelow.c (symfile.h): Need this for auto_solib_add declaration. * sol-thread.c (symfile.h): Ditto. Approved by eliz@is.elta.co.il doc/ChangeLog entry: 2001-11-01 Fred Fish <fnf@redhat.com> * gdbint.texinfo (SOLIB_ADD): Document additional new "readsyms" arg.
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coff_solib_add (char *arg_string, int from_tty, struct target_ops *target, int readsyms)
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{
asection *libsect;
Approved by kev@cygnus.com ChangeLog entry: 2001-11-01 Fred Fish <fnf@redhat.com> * coff-solib.c (coff_solib_add): Add new readsyms arg. * irix5-nat.c (solib_add): Ditto. * osfsolib.c (solib_add): Ditto. * pa64solib.c (pa64_solib_add): Ditto. * pa64solib.c (add_to_solist): Ditto. * pa64solib.c (read_dld_descriptor): Ditto. * solib.c (solib_add): Ditto. * somsolib.c (som_solib_add): Ditto. * win32-nat.c (child_solib_add): Ditto. * xcoffsolib.c (solib_add): Ditto. * coff-solib.h (coff_solib_add): Add new readsyms arg to prototype. * pa64solib.c (add_to_solist): Ditto. * pa64solib.c (read_dld_descriptor): Ditto. * pa64solib.h (pa64_solib_add): Ditto. * solib.h (solib_add): Ditto. * somsolib.h (som_solib_add): Ditto. * config/i386/tm-cygwin.h (child_solib_add): Ditto. * coff-solib.c (coff_solib_add): If readsyms is zero don't read symbols but do any other needed work for shared libs. * irix5-nat.c: Ditto. * osfsolib.c (solib_add): Ditto. * solib.c (solib_add): Ditto. * win32-nat.c (child_solib_add): Ditto. * xcoffsolib.c (solib_add): Ditto. * irix5-nat.c (sharedlibrary_command): Pass 1 as readsyms to solib_add to force reading of shared library symbols. * osfsolib.c (sharedlibrary_command;): Ditto. * pa64solib.c (pa64_solib_sharedlibrary_command): Ditto. * solib.c (sharedlibrary_command): Ditto. * somsolib.c (som_solib_sharedlibrary_command): Ditto. * xcoffsolib.c (sharedlibrary_command): Ditto. * coff-solib.c (coff_solib_create_inferior_hook): Call solib_add unconditionally with auto_solib_add. * irix5-nat.c (solib_create_inferior_hook): Ditto. * osfsolib.c (solib_create_inferior_hook): Ditto. * solib.c (solib_create_inferior_hook): Ditto. * solib-osf.c (osf_solib_create_inferior_hook): Ditto. * solib-svr4.c (enable_break): Ditto. * solib-sunos.c (sunos_solib_create_inferior_hook): Ditto. * corelow.c (solib_add_stub): Add auto_solib_add to args passed via SOLIB_ADD. * sol-thread.c (sol_thread_attach): Ditto. * config/rs6000/nm-rs6000.h (SOLIB_ADD): Ditto. * infcmd.c (attach_command): Remove auto_solib_add decl. Call SOLIB_ADD directly with auto_solib_add. * infrun.c (handle_inferior_event): Ditto. * coff-solib.h (SOLIB_ADD): Add readsyms arg. * pa64solib.h (SOLIB_ADD): Ditto. * solib.h (SOLIB_ADD): Ditto. * somsolib.h (SOLIB_ADD): Ditto. * config/i386/tm-cygwin.h (SOLIB_ADD): Ditto. * fork-child.c (clone_and_follow_inferior): Remove unused auto_solib_add decl. * pa64solib.c (pa64_solib_add): Call add_to_solist with readsyms. (read_dld_descriptor): Ditto. (pa64_solib_add): Call read_dld_descriptor with readsyms. (pa64_solib_in_dynamic_linker): Ditto. * corelow.c (symfile.h): Need this for auto_solib_add declaration. * sol-thread.c (symfile.h): Ditto. Approved by eliz@is.elta.co.il doc/ChangeLog entry: 2001-11-01 Fred Fish <fnf@redhat.com> * gdbint.texinfo (SOLIB_ADD): Document additional new "readsyms" arg.
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if (!readsyms)
return;
libsect = bfd_get_section_by_name (exec_bfd, ".lib");
if (libsect)
{
int libsize;
unsigned char *lib;
struct libent
{
bfd_byte len[4];
bfd_byte nameoffset[4];
};
libsize = bfd_section_size (exec_bfd, libsect);
lib = (unsigned char *) alloca (libsize);
bfd_get_section_contents (exec_bfd, libsect, lib, 0, libsize);
while (libsize > 0)
{
struct libent *ent;
struct objfile *objfile;
int len, nameoffset;
char *filename;
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ent = (struct libent *) lib;
len = bfd_get_32 (exec_bfd, ent->len);
nameoffset = bfd_get_32 (exec_bfd, ent->nameoffset);
if (len <= 0)
break;
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filename = (char *) ent + nameoffset * 4;
objfile = symbol_file_add (filename, from_tty,
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NULL, /* no offsets */
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0, /* not mainline */
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OBJF_SHARED); /* flags */
libsize -= len * 4;
lib += len * 4;
}
/* Getting new symbols may change our opinion about what is
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frameless. */
reinit_frame_cache ();
}
}
/*
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GLOBAL FUNCTION
coff_solib_create_inferior_hook -- shared library startup support
SYNOPSIS
void coff_solib_create_inferior_hook()
DESCRIPTION
When gdb starts up the inferior, the kernel maps in the shared
libraries. We get here with the target stopped at it's first
instruction, and the libraries already mapped. At this point, this
function gets called via expansion of the macro
SOLIB_CREATE_INFERIOR_HOOK.
*/
void
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coff_solib_create_inferior_hook (void)
{
Approved by kev@cygnus.com ChangeLog entry: 2001-11-01 Fred Fish <fnf@redhat.com> * coff-solib.c (coff_solib_add): Add new readsyms arg. * irix5-nat.c (solib_add): Ditto. * osfsolib.c (solib_add): Ditto. * pa64solib.c (pa64_solib_add): Ditto. * pa64solib.c (add_to_solist): Ditto. * pa64solib.c (read_dld_descriptor): Ditto. * solib.c (solib_add): Ditto. * somsolib.c (som_solib_add): Ditto. * win32-nat.c (child_solib_add): Ditto. * xcoffsolib.c (solib_add): Ditto. * coff-solib.h (coff_solib_add): Add new readsyms arg to prototype. * pa64solib.c (add_to_solist): Ditto. * pa64solib.c (read_dld_descriptor): Ditto. * pa64solib.h (pa64_solib_add): Ditto. * solib.h (solib_add): Ditto. * somsolib.h (som_solib_add): Ditto. * config/i386/tm-cygwin.h (child_solib_add): Ditto. * coff-solib.c (coff_solib_add): If readsyms is zero don't read symbols but do any other needed work for shared libs. * irix5-nat.c: Ditto. * osfsolib.c (solib_add): Ditto. * solib.c (solib_add): Ditto. * win32-nat.c (child_solib_add): Ditto. * xcoffsolib.c (solib_add): Ditto. * irix5-nat.c (sharedlibrary_command): Pass 1 as readsyms to solib_add to force reading of shared library symbols. * osfsolib.c (sharedlibrary_command;): Ditto. * pa64solib.c (pa64_solib_sharedlibrary_command): Ditto. * solib.c (sharedlibrary_command): Ditto. * somsolib.c (som_solib_sharedlibrary_command): Ditto. * xcoffsolib.c (sharedlibrary_command): Ditto. * coff-solib.c (coff_solib_create_inferior_hook): Call solib_add unconditionally with auto_solib_add. * irix5-nat.c (solib_create_inferior_hook): Ditto. * osfsolib.c (solib_create_inferior_hook): Ditto. * solib.c (solib_create_inferior_hook): Ditto. * solib-osf.c (osf_solib_create_inferior_hook): Ditto. * solib-svr4.c (enable_break): Ditto. * solib-sunos.c (sunos_solib_create_inferior_hook): Ditto. * corelow.c (solib_add_stub): Add auto_solib_add to args passed via SOLIB_ADD. * sol-thread.c (sol_thread_attach): Ditto. * config/rs6000/nm-rs6000.h (SOLIB_ADD): Ditto. * infcmd.c (attach_command): Remove auto_solib_add decl. Call SOLIB_ADD directly with auto_solib_add. * infrun.c (handle_inferior_event): Ditto. * coff-solib.h (SOLIB_ADD): Add readsyms arg. * pa64solib.h (SOLIB_ADD): Ditto. * solib.h (SOLIB_ADD): Ditto. * somsolib.h (SOLIB_ADD): Ditto. * config/i386/tm-cygwin.h (SOLIB_ADD): Ditto. * fork-child.c (clone_and_follow_inferior): Remove unused auto_solib_add decl. * pa64solib.c (pa64_solib_add): Call add_to_solist with readsyms. (read_dld_descriptor): Ditto. (pa64_solib_add): Call read_dld_descriptor with readsyms. (pa64_solib_in_dynamic_linker): Ditto. * corelow.c (symfile.h): Need this for auto_solib_add declaration. * sol-thread.c (symfile.h): Ditto. Approved by eliz@is.elta.co.il doc/ChangeLog entry: 2001-11-01 Fred Fish <fnf@redhat.com> * gdbint.texinfo (SOLIB_ADD): Document additional new "readsyms" arg.
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coff_solib_add ((char *) 0, 0, (struct target_ops *) 0, auto_solib_add);
}