/* Handle SunOS shared libraries for GDB, the GNU Debugger.
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/* Handle SunOS shared libraries for GDB, the GNU Debugger.
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Copyright (C) 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000,
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Copyright (C) 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000,
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2001, 2004, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
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2001, 2004, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
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This file is part of GDB.
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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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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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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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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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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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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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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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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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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include "defs.h"
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#include "defs.h"
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#include <sys/types.h>
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#include <sys/types.h>
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#include <signal.h>
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#include <signal.h>
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#include "gdb_string.h"
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#include "gdb_string.h"
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#include <sys/param.h>
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#include <sys/param.h>
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#include <fcntl.h>
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#include <fcntl.h>
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/* SunOS shared libs need the nlist structure. */
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/* SunOS shared libs need the nlist structure. */
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#include <a.out.h>
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#include <a.out.h>
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#include <link.h>
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#include <link.h>
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#include "symtab.h"
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#include "symtab.h"
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#include "bfd.h"
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#include "bfd.h"
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#include "symfile.h"
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#include "symfile.h"
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#include "objfiles.h"
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#include "objfiles.h"
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#include "gdbcore.h"
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#include "gdbcore.h"
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#include "inferior.h"
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#include "inferior.h"
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#include "gdbthread.h"
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#include "gdbthread.h"
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#include "solist.h"
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#include "solist.h"
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#include "bcache.h"
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#include "bcache.h"
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#include "regcache.h"
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#include "regcache.h"
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/* The shared library implementation found on BSD a.out systems is
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/* The shared library implementation found on BSD a.out systems is
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very similar to the SunOS implementation. However, the data
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very similar to the SunOS implementation. However, the data
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structures defined in <link.h> are named very differently. Make up
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structures defined in <link.h> are named very differently. Make up
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for those differences here. */
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for those differences here. */
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#ifdef HAVE_STRUCT_SO_MAP_WITH_SOM_MEMBERS
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#ifdef HAVE_STRUCT_SO_MAP_WITH_SOM_MEMBERS
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/* FIXME: Temporary until the equivalent defines have been removed
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/* FIXME: Temporary until the equivalent defines have been removed
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from all nm-*bsd*.h files. */
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from all nm-*bsd*.h files. */
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#ifndef link_dynamic
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#ifndef link_dynamic
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/* Map `struct link_map' and its members. */
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/* Map `struct link_map' and its members. */
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#define link_map so_map
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#define link_map so_map
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#define lm_addr som_addr
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#define lm_addr som_addr
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#define lm_name som_path
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#define lm_name som_path
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#define lm_next som_next
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#define lm_next som_next
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/* Map `struct link_dynamic_2' and its members. */
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/* Map `struct link_dynamic_2' and its members. */
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#define link_dynamic_2 section_dispatch_table
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#define link_dynamic_2 section_dispatch_table
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#define ld_loaded sdt_loaded
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#define ld_loaded sdt_loaded
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/* Map `struct rtc_symb' and its members. */
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/* Map `struct rtc_symb' and its members. */
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#define rtc_symb rt_symbol
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#define rtc_symb rt_symbol
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#define rtc_sp rt_sp
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#define rtc_sp rt_sp
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#define rtc_next rt_next
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#define rtc_next rt_next
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/* Map `struct ld_debug' and its members. */
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/* Map `struct ld_debug' and its members. */
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#define ld_debug so_debug
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#define ld_debug so_debug
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#define ldd_in_debugger dd_in_debugger
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#define ldd_in_debugger dd_in_debugger
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#define ldd_bp_addr dd_bpt_addr
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#define ldd_bp_addr dd_bpt_addr
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#define ldd_bp_inst dd_bpt_shadow
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#define ldd_bp_inst dd_bpt_shadow
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#define ldd_cp dd_cc
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#define ldd_cp dd_cc
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/* Map `struct link_dynamic' and its members. */
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/* Map `struct link_dynamic' and its members. */
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#define link_dynamic _dynamic
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#define link_dynamic _dynamic
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#define ld_version d_version
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#define ld_version d_version
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#define ldd d_debug
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#define ldd d_debug
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#define ld_un d_un
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#define ld_un d_un
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#define ld_2 d_sdt
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#define ld_2 d_sdt
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#endif
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#endif
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#endif
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#endif
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/* Link map info to include in an allocated so_list entry */
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/* Link map info to include in an allocated so_list entry */
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struct lm_info
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struct lm_info
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{
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{
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/* Pointer to copy of link map from inferior. The type is char *
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/* Pointer to copy of link map from inferior. The type is char *
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rather than void *, so that we may use byte offsets to find the
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rather than void *, so that we may use byte offsets to find the
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various fields without the need for a cast. */
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various fields without the need for a cast. */
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char *lm;
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char *lm;
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};
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};
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/* Symbols which are used to locate the base of the link map structures. */
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/* Symbols which are used to locate the base of the link map structures. */
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static char *debug_base_symbols[] =
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static char *debug_base_symbols[] =
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{
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{
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"_DYNAMIC",
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"_DYNAMIC",
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"_DYNAMIC__MGC",
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"_DYNAMIC__MGC",
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NULL
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NULL
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};
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};
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static char *main_name_list[] =
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static char *main_name_list[] =
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{
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{
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"main_$main",
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"main_$main",
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NULL
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NULL
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};
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};
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/* Macro to extract an address from a solib structure. When GDB is
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/* Macro to extract an address from a solib structure. When GDB is
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configured for some 32-bit targets (e.g. Solaris 2.7 sparc), BFD is
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configured for some 32-bit targets (e.g. Solaris 2.7 sparc), BFD is
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configured to handle 64-bit targets, so CORE_ADDR is 64 bits. We
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configured to handle 64-bit targets, so CORE_ADDR is 64 bits. We
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have to extract only the significant bits of addresses to get the
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have to extract only the significant bits of addresses to get the
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right address when accessing the core file BFD.
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right address when accessing the core file BFD.
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Assume that the address is unsigned. */
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Assume that the address is unsigned. */
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#define SOLIB_EXTRACT_ADDRESS(MEMBER) \
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#define SOLIB_EXTRACT_ADDRESS(MEMBER) \
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extract_unsigned_integer (&(MEMBER), sizeof (MEMBER), \
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extract_unsigned_integer (&(MEMBER), sizeof (MEMBER), \
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gdbarch_byte_order (target_gdbarch))
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gdbarch_byte_order (target_gdbarch))
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/* local data declarations */
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/* local data declarations */
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static struct link_dynamic dynamic_copy;
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static struct link_dynamic dynamic_copy;
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static struct link_dynamic_2 ld_2_copy;
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static struct link_dynamic_2 ld_2_copy;
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static struct ld_debug debug_copy;
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static struct ld_debug debug_copy;
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static CORE_ADDR debug_addr;
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static CORE_ADDR debug_addr;
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static CORE_ADDR flag_addr;
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static CORE_ADDR flag_addr;
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#ifndef offsetof
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#ifndef offsetof
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#define offsetof(TYPE, MEMBER) ((unsigned long) &((TYPE *)0)->MEMBER)
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#define offsetof(TYPE, MEMBER) ((unsigned long) &((TYPE *)0)->MEMBER)
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#endif
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#endif
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#define fieldsize(TYPE, MEMBER) (sizeof (((TYPE *)0)->MEMBER))
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#define fieldsize(TYPE, MEMBER) (sizeof (((TYPE *)0)->MEMBER))
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/* link map access functions */
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/* link map access functions */
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static CORE_ADDR
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static CORE_ADDR
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LM_ADDR (struct so_list *so)
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LM_ADDR (struct so_list *so)
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{
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{
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enum bfd_endian byte_order = gdbarch_byte_order (target_gdbarch);
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enum bfd_endian byte_order = gdbarch_byte_order (target_gdbarch);
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int lm_addr_offset = offsetof (struct link_map, lm_addr);
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int lm_addr_offset = offsetof (struct link_map, lm_addr);
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int lm_addr_size = fieldsize (struct link_map, lm_addr);
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int lm_addr_size = fieldsize (struct link_map, lm_addr);
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return (CORE_ADDR) extract_signed_integer (so->lm_info->lm + lm_addr_offset,
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return (CORE_ADDR) extract_signed_integer (so->lm_info->lm + lm_addr_offset,
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lm_addr_size, byte_order);
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lm_addr_size, byte_order);
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}
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}
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static CORE_ADDR
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static CORE_ADDR
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LM_NEXT (struct so_list *so)
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LM_NEXT (struct so_list *so)
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{
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{
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enum bfd_endian byte_order = gdbarch_byte_order (target_gdbarch);
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enum bfd_endian byte_order = gdbarch_byte_order (target_gdbarch);
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int lm_next_offset = offsetof (struct link_map, lm_next);
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int lm_next_offset = offsetof (struct link_map, lm_next);
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int lm_next_size = fieldsize (struct link_map, lm_next);
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int lm_next_size = fieldsize (struct link_map, lm_next);
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/* Assume that the address is unsigned. */
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/* Assume that the address is unsigned. */
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return extract_unsigned_integer (so->lm_info->lm + lm_next_offset,
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return extract_unsigned_integer (so->lm_info->lm + lm_next_offset,
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lm_next_size, byte_order);
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lm_next_size, byte_order);
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}
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}
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static CORE_ADDR
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static CORE_ADDR
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LM_NAME (struct so_list *so)
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LM_NAME (struct so_list *so)
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{
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{
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enum bfd_endian byte_order = gdbarch_byte_order (target_gdbarch);
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enum bfd_endian byte_order = gdbarch_byte_order (target_gdbarch);
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int lm_name_offset = offsetof (struct link_map, lm_name);
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int lm_name_offset = offsetof (struct link_map, lm_name);
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int lm_name_size = fieldsize (struct link_map, lm_name);
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int lm_name_size = fieldsize (struct link_map, lm_name);
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/* Assume that the address is unsigned. */
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/* Assume that the address is unsigned. */
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return extract_unsigned_integer (so->lm_info->lm + lm_name_offset,
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return extract_unsigned_integer (so->lm_info->lm + lm_name_offset,
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lm_name_size, byte_order);
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lm_name_size, byte_order);
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}
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}
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static CORE_ADDR debug_base; /* Base of dynamic linker structures */
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static CORE_ADDR debug_base; /* Base of dynamic linker structures */
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/* Local function prototypes */
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/* Local function prototypes */
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static int match_main (char *);
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static int match_main (char *);
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/* Allocate the runtime common object file. */
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/* Allocate the runtime common object file. */
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static void
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static void
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allocate_rt_common_objfile (void)
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allocate_rt_common_objfile (void)
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{
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{
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struct objfile *objfile;
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struct objfile *objfile;
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struct objfile *last_one;
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struct objfile *last_one;
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objfile = (struct objfile *) xmalloc (sizeof (struct objfile));
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objfile = (struct objfile *) xmalloc (sizeof (struct objfile));
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memset (objfile, 0, sizeof (struct objfile));
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memset (objfile, 0, sizeof (struct objfile));
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objfile->psymbol_cache = bcache_xmalloc ();
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objfile->psymbol_cache = bcache_xmalloc ();
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objfile->macro_cache = bcache_xmalloc ();
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objfile->macro_cache = bcache_xmalloc ();
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objfile->filename_cache = bcache_xmalloc ();
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objfile->filename_cache = bcache_xmalloc ();
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obstack_init (&objfile->objfile_obstack);
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obstack_init (&objfile->objfile_obstack);
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objfile->name = xstrdup ("rt_common");
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objfile->name = xstrdup ("rt_common");
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/* Add this file onto the tail of the linked list of other such files. */
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/* Add this file onto the tail of the linked list of other such files. */
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objfile->next = NULL;
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objfile->next = NULL;
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if (object_files == NULL)
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if (object_files == NULL)
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object_files = objfile;
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object_files = objfile;
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else
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else
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{
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{
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for (last_one = object_files;
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for (last_one = object_files;
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last_one->next;
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last_one->next;
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last_one = last_one->next);
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last_one = last_one->next);
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last_one->next = objfile;
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last_one->next = objfile;
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}
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}
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rt_common_objfile = objfile;
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rt_common_objfile = objfile;
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}
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}
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/* Read all dynamically loaded common symbol definitions from the inferior
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/* Read all dynamically loaded common symbol definitions from the inferior
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and put them into the minimal symbol table for the runtime common
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and put them into the minimal symbol table for the runtime common
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objfile. */
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objfile. */
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static void
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static void
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solib_add_common_symbols (CORE_ADDR rtc_symp)
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solib_add_common_symbols (CORE_ADDR rtc_symp)
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{
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{
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struct rtc_symb inferior_rtc_symb;
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struct rtc_symb inferior_rtc_symb;
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struct nlist inferior_rtc_nlist;
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struct nlist inferior_rtc_nlist;
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int len;
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int len;
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char *name;
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char *name;
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/* Remove any runtime common symbols from previous runs. */
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/* Remove any runtime common symbols from previous runs. */
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if (rt_common_objfile != NULL && rt_common_objfile->minimal_symbol_count)
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if (rt_common_objfile != NULL && rt_common_objfile->minimal_symbol_count)
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{
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{
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obstack_free (&rt_common_objfile->objfile_obstack, 0);
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obstack_free (&rt_common_objfile->objfile_obstack, 0);
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obstack_init (&rt_common_objfile->objfile_obstack);
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obstack_init (&rt_common_objfile->objfile_obstack);
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rt_common_objfile->minimal_symbol_count = 0;
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rt_common_objfile->minimal_symbol_count = 0;
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rt_common_objfile->msymbols = NULL;
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rt_common_objfile->msymbols = NULL;
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terminate_minimal_symbol_table (rt_common_objfile);
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terminate_minimal_symbol_table (rt_common_objfile);
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}
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}
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init_minimal_symbol_collection ();
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init_minimal_symbol_collection ();
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make_cleanup_discard_minimal_symbols ();
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make_cleanup_discard_minimal_symbols ();
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while (rtc_symp)
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while (rtc_symp)
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{
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{
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read_memory (rtc_symp,
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read_memory (rtc_symp,
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(char *) &inferior_rtc_symb,
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(char *) &inferior_rtc_symb,
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sizeof (inferior_rtc_symb));
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sizeof (inferior_rtc_symb));
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read_memory (SOLIB_EXTRACT_ADDRESS (inferior_rtc_symb.rtc_sp),
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read_memory (SOLIB_EXTRACT_ADDRESS (inferior_rtc_symb.rtc_sp),
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(char *) &inferior_rtc_nlist,
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(char *) &inferior_rtc_nlist,
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sizeof (inferior_rtc_nlist));
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sizeof (inferior_rtc_nlist));
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if (inferior_rtc_nlist.n_type == N_COMM)
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if (inferior_rtc_nlist.n_type == N_COMM)
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{
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{
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/* FIXME: The length of the symbol name is not available, but in the
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/* FIXME: The length of the symbol name is not available, but in the
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current implementation the common symbol is allocated immediately
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current implementation the common symbol is allocated immediately
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behind the name of the symbol. */
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behind the name of the symbol. */
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len = inferior_rtc_nlist.n_value - inferior_rtc_nlist.n_un.n_strx;
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len = inferior_rtc_nlist.n_value - inferior_rtc_nlist.n_un.n_strx;
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name = xmalloc (len);
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name = xmalloc (len);
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read_memory (SOLIB_EXTRACT_ADDRESS (inferior_rtc_nlist.n_un.n_name),
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read_memory (SOLIB_EXTRACT_ADDRESS (inferior_rtc_nlist.n_un.n_name),
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name, len);
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name, len);
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/* Allocate the runtime common objfile if necessary. */
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/* Allocate the runtime common objfile if necessary. */
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if (rt_common_objfile == NULL)
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if (rt_common_objfile == NULL)
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allocate_rt_common_objfile ();
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allocate_rt_common_objfile ();
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prim_record_minimal_symbol (name, inferior_rtc_nlist.n_value,
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prim_record_minimal_symbol (name, inferior_rtc_nlist.n_value,
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mst_bss, rt_common_objfile);
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mst_bss, rt_common_objfile);
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xfree (name);
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xfree (name);
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}
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}
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rtc_symp = SOLIB_EXTRACT_ADDRESS (inferior_rtc_symb.rtc_next);
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rtc_symp = SOLIB_EXTRACT_ADDRESS (inferior_rtc_symb.rtc_next);
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}
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}
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/* Install any minimal symbols that have been collected as the current
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/* Install any minimal symbols that have been collected as the current
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minimal symbols for the runtime common objfile. */
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minimal symbols for the runtime common objfile. */
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|
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install_minimal_symbols (rt_common_objfile);
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install_minimal_symbols (rt_common_objfile);
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}
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}
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/*
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/*
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LOCAL FUNCTION
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LOCAL FUNCTION
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|
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locate_base -- locate the base address of dynamic linker structs
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locate_base -- locate the base address of dynamic linker structs
|
|
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SYNOPSIS
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SYNOPSIS
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|
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CORE_ADDR locate_base (void)
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CORE_ADDR locate_base (void)
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|
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DESCRIPTION
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DESCRIPTION
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|
|
For both the SunOS and SVR4 shared library implementations, if the
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For both the SunOS and SVR4 shared library implementations, if the
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inferior executable has been linked dynamically, there is a single
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inferior executable has been linked dynamically, there is a single
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address somewhere in the inferior's data space which is the key to
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address somewhere in the inferior's data space which is the key to
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locating all of the dynamic linker's runtime structures. This
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locating all of the dynamic linker's runtime structures. This
|
address is the value of the debug base symbol. The job of this
|
address is the value of the debug base symbol. The job of this
|
function is to find and return that address, or to return 0 if there
|
function is to find and return that address, or to return 0 if there
|
is no such address (the executable is statically linked for example).
|
is no such address (the executable is statically linked for example).
|
|
|
For SunOS, the job is almost trivial, since the dynamic linker and
|
For SunOS, the job is almost trivial, since the dynamic linker and
|
all of it's structures are statically linked to the executable at
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all of it's structures are statically linked to the executable at
|
link time. Thus the symbol for the address we are looking for has
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link time. Thus the symbol for the address we are looking for has
|
already been added to the minimal symbol table for the executable's
|
already been added to the minimal symbol table for the executable's
|
objfile at the time the symbol file's symbols were read, and all we
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objfile at the time the symbol file's symbols were read, and all we
|
have to do is look it up there. Note that we explicitly do NOT want
|
have to do is look it up there. Note that we explicitly do NOT want
|
to find the copies in the shared library.
|
to find the copies in the shared library.
|
|
|
The SVR4 version is a bit more complicated because the address
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The SVR4 version is a bit more complicated because the address
|
is contained somewhere in the dynamic info section. We have to go
|
is contained somewhere in the dynamic info section. We have to go
|
to a lot more work to discover the address of the debug base symbol.
|
to a lot more work to discover the address of the debug base symbol.
|
Because of this complexity, we cache the value we find and return that
|
Because of this complexity, we cache the value we find and return that
|
value on subsequent invocations. Note there is no copy in the
|
value on subsequent invocations. Note there is no copy in the
|
executable symbol tables.
|
executable symbol tables.
|
|
|
*/
|
*/
|
|
|
static CORE_ADDR
|
static CORE_ADDR
|
locate_base (void)
|
locate_base (void)
|
{
|
{
|
struct minimal_symbol *msymbol;
|
struct minimal_symbol *msymbol;
|
CORE_ADDR address = 0;
|
CORE_ADDR address = 0;
|
char **symbolp;
|
char **symbolp;
|
|
|
/* For SunOS, we want to limit the search for the debug base symbol to the
|
/* For SunOS, we want to limit the search for the debug base symbol to the
|
executable being debugged, since there is a duplicate named symbol in the
|
executable being debugged, since there is a duplicate named symbol in the
|
shared library. We don't want the shared library versions. */
|
shared library. We don't want the shared library versions. */
|
|
|
for (symbolp = debug_base_symbols; *symbolp != NULL; symbolp++)
|
for (symbolp = debug_base_symbols; *symbolp != NULL; symbolp++)
|
{
|
{
|
msymbol = lookup_minimal_symbol (*symbolp, NULL, symfile_objfile);
|
msymbol = lookup_minimal_symbol (*symbolp, NULL, symfile_objfile);
|
if ((msymbol != NULL) && (SYMBOL_VALUE_ADDRESS (msymbol) != 0))
|
if ((msymbol != NULL) && (SYMBOL_VALUE_ADDRESS (msymbol) != 0))
|
{
|
{
|
address = SYMBOL_VALUE_ADDRESS (msymbol);
|
address = SYMBOL_VALUE_ADDRESS (msymbol);
|
return (address);
|
return (address);
|
}
|
}
|
}
|
}
|
return (0);
|
return (0);
|
}
|
}
|
|
|
/*
|
/*
|
|
|
LOCAL FUNCTION
|
LOCAL FUNCTION
|
|
|
first_link_map_member -- locate first member in dynamic linker's map
|
first_link_map_member -- locate first member in dynamic linker's map
|
|
|
SYNOPSIS
|
SYNOPSIS
|
|
|
static CORE_ADDR first_link_map_member (void)
|
static CORE_ADDR first_link_map_member (void)
|
|
|
DESCRIPTION
|
DESCRIPTION
|
|
|
Find the first element in the inferior's dynamic link map, and
|
Find the first element in the inferior's dynamic link map, and
|
return its address in the inferior. This function doesn't copy the
|
return its address in the inferior. This function doesn't copy the
|
link map entry itself into our address space; current_sos actually
|
link map entry itself into our address space; current_sos actually
|
does the reading. */
|
does the reading. */
|
|
|
static CORE_ADDR
|
static CORE_ADDR
|
first_link_map_member (void)
|
first_link_map_member (void)
|
{
|
{
|
CORE_ADDR lm = 0;
|
CORE_ADDR lm = 0;
|
|
|
read_memory (debug_base, (char *) &dynamic_copy, sizeof (dynamic_copy));
|
read_memory (debug_base, (char *) &dynamic_copy, sizeof (dynamic_copy));
|
if (dynamic_copy.ld_version >= 2)
|
if (dynamic_copy.ld_version >= 2)
|
{
|
{
|
/* It is a version that we can deal with, so read in the secondary
|
/* It is a version that we can deal with, so read in the secondary
|
structure and find the address of the link map list from it. */
|
structure and find the address of the link map list from it. */
|
read_memory (SOLIB_EXTRACT_ADDRESS (dynamic_copy.ld_un.ld_2),
|
read_memory (SOLIB_EXTRACT_ADDRESS (dynamic_copy.ld_un.ld_2),
|
(char *) &ld_2_copy, sizeof (struct link_dynamic_2));
|
(char *) &ld_2_copy, sizeof (struct link_dynamic_2));
|
lm = SOLIB_EXTRACT_ADDRESS (ld_2_copy.ld_loaded);
|
lm = SOLIB_EXTRACT_ADDRESS (ld_2_copy.ld_loaded);
|
}
|
}
|
return (lm);
|
return (lm);
|
}
|
}
|
|
|
static int
|
static int
|
open_symbol_file_object (void *from_ttyp)
|
open_symbol_file_object (void *from_ttyp)
|
{
|
{
|
return 1;
|
return 1;
|
}
|
}
|
|
|
|
|
/* LOCAL FUNCTION
|
/* LOCAL FUNCTION
|
|
|
current_sos -- build a list of currently loaded shared objects
|
current_sos -- build a list of currently loaded shared objects
|
|
|
SYNOPSIS
|
SYNOPSIS
|
|
|
struct so_list *current_sos ()
|
struct so_list *current_sos ()
|
|
|
DESCRIPTION
|
DESCRIPTION
|
|
|
Build a list of `struct so_list' objects describing the shared
|
Build a list of `struct so_list' objects describing the shared
|
objects currently loaded in the inferior. This list does not
|
objects currently loaded in the inferior. This list does not
|
include an entry for the main executable file.
|
include an entry for the main executable file.
|
|
|
Note that we only gather information directly available from the
|
Note that we only gather information directly available from the
|
inferior --- we don't examine any of the shared library files
|
inferior --- we don't examine any of the shared library files
|
themselves. The declaration of `struct so_list' says which fields
|
themselves. The declaration of `struct so_list' says which fields
|
we provide values for. */
|
we provide values for. */
|
|
|
static struct so_list *
|
static struct so_list *
|
sunos_current_sos (void)
|
sunos_current_sos (void)
|
{
|
{
|
CORE_ADDR lm;
|
CORE_ADDR lm;
|
struct so_list *head = 0;
|
struct so_list *head = 0;
|
struct so_list **link_ptr = &head;
|
struct so_list **link_ptr = &head;
|
int errcode;
|
int errcode;
|
char *buffer;
|
char *buffer;
|
|
|
/* Make sure we've looked up the inferior's dynamic linker's base
|
/* Make sure we've looked up the inferior's dynamic linker's base
|
structure. */
|
structure. */
|
if (! debug_base)
|
if (! debug_base)
|
{
|
{
|
debug_base = locate_base ();
|
debug_base = locate_base ();
|
|
|
/* If we can't find the dynamic linker's base structure, this
|
/* If we can't find the dynamic linker's base structure, this
|
must not be a dynamically linked executable. Hmm. */
|
must not be a dynamically linked executable. Hmm. */
|
if (! debug_base)
|
if (! debug_base)
|
return 0;
|
return 0;
|
}
|
}
|
|
|
/* Walk the inferior's link map list, and build our list of
|
/* Walk the inferior's link map list, and build our list of
|
`struct so_list' nodes. */
|
`struct so_list' nodes. */
|
lm = first_link_map_member ();
|
lm = first_link_map_member ();
|
while (lm)
|
while (lm)
|
{
|
{
|
struct so_list *new
|
struct so_list *new
|
= (struct so_list *) xmalloc (sizeof (struct so_list));
|
= (struct so_list *) xmalloc (sizeof (struct so_list));
|
struct cleanup *old_chain = make_cleanup (xfree, new);
|
struct cleanup *old_chain = make_cleanup (xfree, new);
|
|
|
memset (new, 0, sizeof (*new));
|
memset (new, 0, sizeof (*new));
|
|
|
new->lm_info = xmalloc (sizeof (struct lm_info));
|
new->lm_info = xmalloc (sizeof (struct lm_info));
|
make_cleanup (xfree, new->lm_info);
|
make_cleanup (xfree, new->lm_info);
|
|
|
new->lm_info->lm = xmalloc (sizeof (struct link_map));
|
new->lm_info->lm = xmalloc (sizeof (struct link_map));
|
make_cleanup (xfree, new->lm_info->lm);
|
make_cleanup (xfree, new->lm_info->lm);
|
memset (new->lm_info->lm, 0, sizeof (struct link_map));
|
memset (new->lm_info->lm, 0, sizeof (struct link_map));
|
|
|
read_memory (lm, new->lm_info->lm, sizeof (struct link_map));
|
read_memory (lm, new->lm_info->lm, sizeof (struct link_map));
|
|
|
lm = LM_NEXT (new);
|
lm = LM_NEXT (new);
|
|
|
/* Extract this shared object's name. */
|
/* Extract this shared object's name. */
|
target_read_string (LM_NAME (new), &buffer,
|
target_read_string (LM_NAME (new), &buffer,
|
SO_NAME_MAX_PATH_SIZE - 1, &errcode);
|
SO_NAME_MAX_PATH_SIZE - 1, &errcode);
|
if (errcode != 0)
|
if (errcode != 0)
|
warning (_("Can't read pathname for load map: %s."),
|
warning (_("Can't read pathname for load map: %s."),
|
safe_strerror (errcode));
|
safe_strerror (errcode));
|
else
|
else
|
{
|
{
|
strncpy (new->so_name, buffer, SO_NAME_MAX_PATH_SIZE - 1);
|
strncpy (new->so_name, buffer, SO_NAME_MAX_PATH_SIZE - 1);
|
new->so_name[SO_NAME_MAX_PATH_SIZE - 1] = '\0';
|
new->so_name[SO_NAME_MAX_PATH_SIZE - 1] = '\0';
|
xfree (buffer);
|
xfree (buffer);
|
strcpy (new->so_original_name, new->so_name);
|
strcpy (new->so_original_name, new->so_name);
|
}
|
}
|
|
|
/* If this entry has no name, or its name matches the name
|
/* If this entry has no name, or its name matches the name
|
for the main executable, don't include it in the list. */
|
for the main executable, don't include it in the list. */
|
if (! new->so_name[0]
|
if (! new->so_name[0]
|
|| match_main (new->so_name))
|
|| match_main (new->so_name))
|
free_so (new);
|
free_so (new);
|
else
|
else
|
{
|
{
|
new->next = 0;
|
new->next = 0;
|
*link_ptr = new;
|
*link_ptr = new;
|
link_ptr = &new->next;
|
link_ptr = &new->next;
|
}
|
}
|
|
|
discard_cleanups (old_chain);
|
discard_cleanups (old_chain);
|
}
|
}
|
|
|
return head;
|
return head;
|
}
|
}
|
|
|
|
|
/* On some systems, the only way to recognize the link map entry for
|
/* On some systems, the only way to recognize the link map entry for
|
the main executable file is by looking at its name. Return
|
the main executable file is by looking at its name. Return
|
non-zero iff SONAME matches one of the known main executable names. */
|
non-zero iff SONAME matches one of the known main executable names. */
|
|
|
static int
|
static int
|
match_main (char *soname)
|
match_main (char *soname)
|
{
|
{
|
char **mainp;
|
char **mainp;
|
|
|
for (mainp = main_name_list; *mainp != NULL; mainp++)
|
for (mainp = main_name_list; *mainp != NULL; mainp++)
|
{
|
{
|
if (strcmp (soname, *mainp) == 0)
|
if (strcmp (soname, *mainp) == 0)
|
return (1);
|
return (1);
|
}
|
}
|
|
|
return (0);
|
return (0);
|
}
|
}
|
|
|
|
|
static int
|
static int
|
sunos_in_dynsym_resolve_code (CORE_ADDR pc)
|
sunos_in_dynsym_resolve_code (CORE_ADDR pc)
|
{
|
{
|
return 0;
|
return 0;
|
}
|
}
|
|
|
/*
|
/*
|
|
|
LOCAL FUNCTION
|
LOCAL FUNCTION
|
|
|
disable_break -- remove the "mapping changed" breakpoint
|
disable_break -- remove the "mapping changed" breakpoint
|
|
|
SYNOPSIS
|
SYNOPSIS
|
|
|
static int disable_break ()
|
static int disable_break ()
|
|
|
DESCRIPTION
|
DESCRIPTION
|
|
|
Removes the breakpoint that gets hit when the dynamic linker
|
Removes the breakpoint that gets hit when the dynamic linker
|
completes a mapping change.
|
completes a mapping change.
|
|
|
*/
|
*/
|
|
|
static int
|
static int
|
disable_break (void)
|
disable_break (void)
|
{
|
{
|
CORE_ADDR breakpoint_addr; /* Address where end bkpt is set */
|
CORE_ADDR breakpoint_addr; /* Address where end bkpt is set */
|
|
|
int in_debugger = 0;
|
int in_debugger = 0;
|
|
|
/* Read the debugger structure from the inferior to retrieve the
|
/* Read the debugger structure from the inferior to retrieve the
|
address of the breakpoint and the original contents of the
|
address of the breakpoint and the original contents of the
|
breakpoint address. Remove the breakpoint by writing the original
|
breakpoint address. Remove the breakpoint by writing the original
|
contents back. */
|
contents back. */
|
|
|
read_memory (debug_addr, (char *) &debug_copy, sizeof (debug_copy));
|
read_memory (debug_addr, (char *) &debug_copy, sizeof (debug_copy));
|
|
|
/* Set `in_debugger' to zero now. */
|
/* Set `in_debugger' to zero now. */
|
|
|
write_memory (flag_addr, (char *) &in_debugger, sizeof (in_debugger));
|
write_memory (flag_addr, (char *) &in_debugger, sizeof (in_debugger));
|
|
|
breakpoint_addr = SOLIB_EXTRACT_ADDRESS (debug_copy.ldd_bp_addr);
|
breakpoint_addr = SOLIB_EXTRACT_ADDRESS (debug_copy.ldd_bp_addr);
|
write_memory (breakpoint_addr, (char *) &debug_copy.ldd_bp_inst,
|
write_memory (breakpoint_addr, (char *) &debug_copy.ldd_bp_inst,
|
sizeof (debug_copy.ldd_bp_inst));
|
sizeof (debug_copy.ldd_bp_inst));
|
|
|
/* For the SVR4 version, we always know the breakpoint address. For the
|
/* For the SVR4 version, we always know the breakpoint address. For the
|
SunOS version we don't know it until the above code is executed.
|
SunOS version we don't know it until the above code is executed.
|
Grumble if we are stopped anywhere besides the breakpoint address. */
|
Grumble if we are stopped anywhere besides the breakpoint address. */
|
|
|
if (stop_pc != breakpoint_addr)
|
if (stop_pc != breakpoint_addr)
|
{
|
{
|
warning (_("stopped at unknown breakpoint while handling shared libraries"));
|
warning (_("stopped at unknown breakpoint while handling shared libraries"));
|
}
|
}
|
|
|
return 1;
|
return 1;
|
}
|
}
|
|
|
|
|
/*
|
/*
|
|
|
LOCAL FUNCTION
|
LOCAL FUNCTION
|
|
|
enable_break -- arrange for dynamic linker to hit breakpoint
|
enable_break -- arrange for dynamic linker to hit breakpoint
|
|
|
SYNOPSIS
|
SYNOPSIS
|
|
|
int enable_break (void)
|
int enable_break (void)
|
|
|
DESCRIPTION
|
DESCRIPTION
|
|
|
Both the SunOS and the SVR4 dynamic linkers have, as part of their
|
Both the SunOS and the SVR4 dynamic linkers have, as part of their
|
debugger interface, support for arranging for the inferior to hit
|
debugger interface, support for arranging for the inferior to hit
|
a breakpoint after mapping in the shared libraries. This function
|
a breakpoint after mapping in the shared libraries. This function
|
enables that breakpoint.
|
enables that breakpoint.
|
|
|
For SunOS, there is a special flag location (in_debugger) which we
|
For SunOS, there is a special flag location (in_debugger) which we
|
set to 1. When the dynamic linker sees this flag set, it will set
|
set to 1. When the dynamic linker sees this flag set, it will set
|
a breakpoint at a location known only to itself, after saving the
|
a breakpoint at a location known only to itself, after saving the
|
original contents of that place and the breakpoint address itself,
|
original contents of that place and the breakpoint address itself,
|
in it's own internal structures. When we resume the inferior, it
|
in it's own internal structures. When we resume the inferior, it
|
will eventually take a SIGTRAP when it runs into the breakpoint.
|
will eventually take a SIGTRAP when it runs into the breakpoint.
|
We handle this (in a different place) by restoring the contents of
|
We handle this (in a different place) by restoring the contents of
|
the breakpointed location (which is only known after it stops),
|
the breakpointed location (which is only known after it stops),
|
chasing around to locate the shared libraries that have been
|
chasing around to locate the shared libraries that have been
|
loaded, then resuming.
|
loaded, then resuming.
|
|
|
For SVR4, the debugger interface structure contains a member (r_brk)
|
For SVR4, the debugger interface structure contains a member (r_brk)
|
which is statically initialized at the time the shared library is
|
which is statically initialized at the time the shared library is
|
built, to the offset of a function (_r_debug_state) which is guaran-
|
built, to the offset of a function (_r_debug_state) which is guaran-
|
teed to be called once before mapping in a library, and again when
|
teed to be called once before mapping in a library, and again when
|
the mapping is complete. At the time we are examining this member,
|
the mapping is complete. At the time we are examining this member,
|
it contains only the unrelocated offset of the function, so we have
|
it contains only the unrelocated offset of the function, so we have
|
to do our own relocation. Later, when the dynamic linker actually
|
to do our own relocation. Later, when the dynamic linker actually
|
runs, it relocates r_brk to be the actual address of _r_debug_state().
|
runs, it relocates r_brk to be the actual address of _r_debug_state().
|
|
|
The debugger interface structure also contains an enumeration which
|
The debugger interface structure also contains an enumeration which
|
is set to either RT_ADD or RT_DELETE prior to changing the mapping,
|
is set to either RT_ADD or RT_DELETE prior to changing the mapping,
|
depending upon whether or not the library is being mapped or unmapped,
|
depending upon whether or not the library is being mapped or unmapped,
|
and then set to RT_CONSISTENT after the library is mapped/unmapped.
|
and then set to RT_CONSISTENT after the library is mapped/unmapped.
|
*/
|
*/
|
|
|
static int
|
static int
|
enable_break (void)
|
enable_break (void)
|
{
|
{
|
int success = 0;
|
int success = 0;
|
int j;
|
int j;
|
int in_debugger;
|
int in_debugger;
|
|
|
/* Get link_dynamic structure */
|
/* Get link_dynamic structure */
|
|
|
j = target_read_memory (debug_base, (char *) &dynamic_copy,
|
j = target_read_memory (debug_base, (char *) &dynamic_copy,
|
sizeof (dynamic_copy));
|
sizeof (dynamic_copy));
|
if (j)
|
if (j)
|
{
|
{
|
/* unreadable */
|
/* unreadable */
|
return (0);
|
return (0);
|
}
|
}
|
|
|
/* Calc address of debugger interface structure */
|
/* Calc address of debugger interface structure */
|
|
|
debug_addr = SOLIB_EXTRACT_ADDRESS (dynamic_copy.ldd);
|
debug_addr = SOLIB_EXTRACT_ADDRESS (dynamic_copy.ldd);
|
|
|
/* Calc address of `in_debugger' member of debugger interface structure */
|
/* Calc address of `in_debugger' member of debugger interface structure */
|
|
|
flag_addr = debug_addr + (CORE_ADDR) ((char *) &debug_copy.ldd_in_debugger -
|
flag_addr = debug_addr + (CORE_ADDR) ((char *) &debug_copy.ldd_in_debugger -
|
(char *) &debug_copy);
|
(char *) &debug_copy);
|
|
|
/* Write a value of 1 to this member. */
|
/* Write a value of 1 to this member. */
|
|
|
in_debugger = 1;
|
in_debugger = 1;
|
write_memory (flag_addr, (char *) &in_debugger, sizeof (in_debugger));
|
write_memory (flag_addr, (char *) &in_debugger, sizeof (in_debugger));
|
success = 1;
|
success = 1;
|
|
|
return (success);
|
return (success);
|
}
|
}
|
|
|
/*
|
/*
|
|
|
LOCAL FUNCTION
|
LOCAL FUNCTION
|
|
|
special_symbol_handling -- additional shared library symbol handling
|
special_symbol_handling -- additional shared library symbol handling
|
|
|
SYNOPSIS
|
SYNOPSIS
|
|
|
void special_symbol_handling ()
|
void special_symbol_handling ()
|
|
|
DESCRIPTION
|
DESCRIPTION
|
|
|
Once the symbols from a shared object have been loaded in the usual
|
Once the symbols from a shared object have been loaded in the usual
|
way, we are called to do any system specific symbol handling that
|
way, we are called to do any system specific symbol handling that
|
is needed.
|
is needed.
|
|
|
For SunOS4, this consists of grunging around in the dynamic
|
For SunOS4, this consists of grunging around in the dynamic
|
linkers structures to find symbol definitions for "common" symbols
|
linkers structures to find symbol definitions for "common" symbols
|
and adding them to the minimal symbol table for the runtime common
|
and adding them to the minimal symbol table for the runtime common
|
objfile.
|
objfile.
|
|
|
*/
|
*/
|
|
|
static void
|
static void
|
sunos_special_symbol_handling (void)
|
sunos_special_symbol_handling (void)
|
{
|
{
|
int j;
|
int j;
|
|
|
if (debug_addr == 0)
|
if (debug_addr == 0)
|
{
|
{
|
/* Get link_dynamic structure */
|
/* Get link_dynamic structure */
|
|
|
j = target_read_memory (debug_base, (char *) &dynamic_copy,
|
j = target_read_memory (debug_base, (char *) &dynamic_copy,
|
sizeof (dynamic_copy));
|
sizeof (dynamic_copy));
|
if (j)
|
if (j)
|
{
|
{
|
/* unreadable */
|
/* unreadable */
|
return;
|
return;
|
}
|
}
|
|
|
/* Calc address of debugger interface structure */
|
/* Calc address of debugger interface structure */
|
/* FIXME, this needs work for cross-debugging of core files
|
/* FIXME, this needs work for cross-debugging of core files
|
(byteorder, size, alignment, etc). */
|
(byteorder, size, alignment, etc). */
|
|
|
debug_addr = SOLIB_EXTRACT_ADDRESS (dynamic_copy.ldd);
|
debug_addr = SOLIB_EXTRACT_ADDRESS (dynamic_copy.ldd);
|
}
|
}
|
|
|
/* Read the debugger structure from the inferior, just to make sure
|
/* Read the debugger structure from the inferior, just to make sure
|
we have a current copy. */
|
we have a current copy. */
|
|
|
j = target_read_memory (debug_addr, (char *) &debug_copy,
|
j = target_read_memory (debug_addr, (char *) &debug_copy,
|
sizeof (debug_copy));
|
sizeof (debug_copy));
|
if (j)
|
if (j)
|
return; /* unreadable */
|
return; /* unreadable */
|
|
|
/* Get common symbol definitions for the loaded object. */
|
/* Get common symbol definitions for the loaded object. */
|
|
|
if (debug_copy.ldd_cp)
|
if (debug_copy.ldd_cp)
|
{
|
{
|
solib_add_common_symbols (SOLIB_EXTRACT_ADDRESS (debug_copy.ldd_cp));
|
solib_add_common_symbols (SOLIB_EXTRACT_ADDRESS (debug_copy.ldd_cp));
|
}
|
}
|
}
|
}
|
|
|
/*
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/*
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GLOBAL FUNCTION
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GLOBAL FUNCTION
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sunos_solib_create_inferior_hook -- shared library startup support
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sunos_solib_create_inferior_hook -- shared library startup support
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SYNOPSIS
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SYNOPSIS
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void sunos_solib_create_inferior_hook ()
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void sunos_solib_create_inferior_hook ()
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DESCRIPTION
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DESCRIPTION
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When gdb starts up the inferior, it nurses it along (through the
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When gdb starts up the inferior, it nurses it along (through the
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shell) until it is ready to execute it's first instruction. At this
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shell) until it is ready to execute it's first instruction. At this
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point, this function gets called via expansion of the macro
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point, this function gets called via expansion of the macro
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SOLIB_CREATE_INFERIOR_HOOK.
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SOLIB_CREATE_INFERIOR_HOOK.
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For SunOS executables, this first instruction is typically the
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For SunOS executables, this first instruction is typically the
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one at "_start", or a similar text label, regardless of whether
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one at "_start", or a similar text label, regardless of whether
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the executable is statically or dynamically linked. The runtime
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the executable is statically or dynamically linked. The runtime
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startup code takes care of dynamically linking in any shared
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startup code takes care of dynamically linking in any shared
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libraries, once gdb allows the inferior to continue.
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libraries, once gdb allows the inferior to continue.
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For SVR4 executables, this first instruction is either the first
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For SVR4 executables, this first instruction is either the first
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instruction in the dynamic linker (for dynamically linked
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instruction in the dynamic linker (for dynamically linked
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executables) or the instruction at "start" for statically linked
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executables) or the instruction at "start" for statically linked
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executables. For dynamically linked executables, the system
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executables. For dynamically linked executables, the system
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first exec's /lib/libc.so.N, which contains the dynamic linker,
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first exec's /lib/libc.so.N, which contains the dynamic linker,
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and starts it running. The dynamic linker maps in any needed
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and starts it running. The dynamic linker maps in any needed
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shared libraries, maps in the actual user executable, and then
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shared libraries, maps in the actual user executable, and then
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jumps to "start" in the user executable.
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jumps to "start" in the user executable.
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For both SunOS shared libraries, and SVR4 shared libraries, we
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For both SunOS shared libraries, and SVR4 shared libraries, we
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can arrange to cooperate with the dynamic linker to discover the
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can arrange to cooperate with the dynamic linker to discover the
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names of shared libraries that are dynamically linked, and the
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names of shared libraries that are dynamically linked, and the
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base addresses to which they are linked.
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base addresses to which they are linked.
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This function is responsible for discovering those names and
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This function is responsible for discovering those names and
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addresses, and saving sufficient information about them to allow
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addresses, and saving sufficient information about them to allow
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their symbols to be read at a later time.
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their symbols to be read at a later time.
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FIXME
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FIXME
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Between enable_break() and disable_break(), this code does not
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Between enable_break() and disable_break(), this code does not
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properly handle hitting breakpoints which the user might have
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properly handle hitting breakpoints which the user might have
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set in the startup code or in the dynamic linker itself. Proper
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set in the startup code or in the dynamic linker itself. Proper
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handling will probably have to wait until the implementation is
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handling will probably have to wait until the implementation is
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changed to use the "breakpoint handler function" method.
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changed to use the "breakpoint handler function" method.
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Also, what if child has exit()ed? Must exit loop somehow.
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Also, what if child has exit()ed? Must exit loop somehow.
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*/
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*/
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static void
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static void
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sunos_solib_create_inferior_hook (int from_tty)
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sunos_solib_create_inferior_hook (int from_tty)
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{
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{
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struct thread_info *tp;
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struct thread_info *tp;
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struct inferior *inf;
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struct inferior *inf;
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if ((debug_base = locate_base ()) == 0)
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if ((debug_base = locate_base ()) == 0)
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{
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{
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/* Can't find the symbol or the executable is statically linked. */
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/* Can't find the symbol or the executable is statically linked. */
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return;
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return;
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}
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}
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if (!enable_break ())
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if (!enable_break ())
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{
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{
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warning (_("shared library handler failed to enable breakpoint"));
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warning (_("shared library handler failed to enable breakpoint"));
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return;
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return;
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}
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}
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/* SCO and SunOS need the loop below, other systems should be using the
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/* SCO and SunOS need the loop below, other systems should be using the
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special shared library breakpoints and the shared library breakpoint
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special shared library breakpoints and the shared library breakpoint
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service routine.
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service routine.
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Now run the target. It will eventually hit the breakpoint, at
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Now run the target. It will eventually hit the breakpoint, at
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which point all of the libraries will have been mapped in and we
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which point all of the libraries will have been mapped in and we
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can go groveling around in the dynamic linker structures to find
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can go groveling around in the dynamic linker structures to find
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out what we need to know about them. */
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out what we need to know about them. */
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inf = current_inferior ();
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inf = current_inferior ();
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tp = inferior_thread ();
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tp = inferior_thread ();
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clear_proceed_status ();
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clear_proceed_status ();
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inf->stop_soon = STOP_QUIETLY;
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inf->stop_soon = STOP_QUIETLY;
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tp->stop_signal = TARGET_SIGNAL_0;
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tp->stop_signal = TARGET_SIGNAL_0;
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do
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do
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{
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{
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target_resume (pid_to_ptid (-1), 0, tp->stop_signal);
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target_resume (pid_to_ptid (-1), 0, tp->stop_signal);
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wait_for_inferior (0);
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wait_for_inferior (0);
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}
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}
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while (tp->stop_signal != TARGET_SIGNAL_TRAP);
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while (tp->stop_signal != TARGET_SIGNAL_TRAP);
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inf->stop_soon = NO_STOP_QUIETLY;
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inf->stop_soon = NO_STOP_QUIETLY;
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/* We are now either at the "mapping complete" breakpoint (or somewhere
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/* We are now either at the "mapping complete" breakpoint (or somewhere
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else, a condition we aren't prepared to deal with anyway), so adjust
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else, a condition we aren't prepared to deal with anyway), so adjust
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the PC as necessary after a breakpoint, disable the breakpoint, and
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the PC as necessary after a breakpoint, disable the breakpoint, and
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add any shared libraries that were mapped in.
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add any shared libraries that were mapped in.
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Note that adjust_pc_after_break did not perform any PC adjustment,
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Note that adjust_pc_after_break did not perform any PC adjustment,
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as the breakpoint the inferior just hit was not inserted by GDB,
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as the breakpoint the inferior just hit was not inserted by GDB,
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but by the dynamic loader itself, and is therefore not found on
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but by the dynamic loader itself, and is therefore not found on
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the GDB software break point list. Thus we have to adjust the
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the GDB software break point list. Thus we have to adjust the
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PC here. */
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PC here. */
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if (gdbarch_decr_pc_after_break (target_gdbarch))
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if (gdbarch_decr_pc_after_break (target_gdbarch))
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{
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{
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stop_pc -= gdbarch_decr_pc_after_break (target_gdbarch);
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stop_pc -= gdbarch_decr_pc_after_break (target_gdbarch);
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regcache_write_pc (get_current_regcache (), stop_pc);
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regcache_write_pc (get_current_regcache (), stop_pc);
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}
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}
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if (!disable_break ())
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if (!disable_break ())
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{
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{
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warning (_("shared library handler failed to disable breakpoint"));
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warning (_("shared library handler failed to disable breakpoint"));
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}
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}
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solib_add ((char *) 0, 0, (struct target_ops *) 0, auto_solib_add);
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solib_add ((char *) 0, 0, (struct target_ops *) 0, auto_solib_add);
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}
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}
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static void
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static void
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sunos_clear_solib (void)
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sunos_clear_solib (void)
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{
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{
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debug_base = 0;
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debug_base = 0;
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}
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}
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static void
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static void
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sunos_free_so (struct so_list *so)
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sunos_free_so (struct so_list *so)
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{
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{
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xfree (so->lm_info->lm);
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xfree (so->lm_info->lm);
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xfree (so->lm_info);
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xfree (so->lm_info);
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}
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}
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static void
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static void
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sunos_relocate_section_addresses (struct so_list *so,
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sunos_relocate_section_addresses (struct so_list *so,
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struct target_section *sec)
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struct target_section *sec)
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{
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{
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sec->addr += LM_ADDR (so);
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sec->addr += LM_ADDR (so);
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sec->endaddr += LM_ADDR (so);
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sec->endaddr += LM_ADDR (so);
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}
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}
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static struct target_so_ops sunos_so_ops;
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static struct target_so_ops sunos_so_ops;
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void
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void
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_initialize_sunos_solib (void)
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_initialize_sunos_solib (void)
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{
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{
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sunos_so_ops.relocate_section_addresses = sunos_relocate_section_addresses;
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sunos_so_ops.relocate_section_addresses = sunos_relocate_section_addresses;
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sunos_so_ops.free_so = sunos_free_so;
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sunos_so_ops.free_so = sunos_free_so;
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sunos_so_ops.clear_solib = sunos_clear_solib;
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sunos_so_ops.clear_solib = sunos_clear_solib;
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sunos_so_ops.solib_create_inferior_hook = sunos_solib_create_inferior_hook;
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sunos_so_ops.solib_create_inferior_hook = sunos_solib_create_inferior_hook;
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sunos_so_ops.special_symbol_handling = sunos_special_symbol_handling;
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sunos_so_ops.special_symbol_handling = sunos_special_symbol_handling;
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sunos_so_ops.current_sos = sunos_current_sos;
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sunos_so_ops.current_sos = sunos_current_sos;
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sunos_so_ops.open_symbol_file_object = open_symbol_file_object;
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sunos_so_ops.open_symbol_file_object = open_symbol_file_object;
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sunos_so_ops.in_dynsym_resolve_code = sunos_in_dynsym_resolve_code;
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sunos_so_ops.in_dynsym_resolve_code = sunos_in_dynsym_resolve_code;
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sunos_so_ops.bfd_open = solib_bfd_open;
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sunos_so_ops.bfd_open = solib_bfd_open;
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/* FIXME: Don't do this here. *_gdbarch_init() should set so_ops. */
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/* FIXME: Don't do this here. *_gdbarch_init() should set so_ops. */
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current_target_so_ops = &sunos_so_ops;
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current_target_so_ops = &sunos_so_ops;
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}
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}
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