/* Handle HP ELF shared libraries for GDB, the GNU Debugger.
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/* Handle HP ELF shared libraries for GDB, the GNU Debugger.
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Copyright 1999 Free Software Foundation, Inc.
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Copyright 1999 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 2 of the License, or
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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(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, write to the Free Software
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330,
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Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA.
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Boston, MA 02111-1307, USA.
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HP in their infinite stupidity choose not to use standard ELF dynamic
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HP in their infinite stupidity choose not to use standard ELF dynamic
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linker interfaces. They also choose not to make their ELF dymamic
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linker interfaces. They also choose not to make their ELF dymamic
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linker interfaces compatible with the SOM dynamic linker. The
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linker interfaces compatible with the SOM dynamic linker. The
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net result is we can not use either of the existing somsolib.c or
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net result is we can not use either of the existing somsolib.c or
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solib.c. What a crock.
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solib.c. What a crock.
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Even more disgusting. This file depends on functions provided only
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Even more disgusting. This file depends on functions provided only
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in certain PA64 libraries. Thus this file is supposed to only be
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in certain PA64 libraries. Thus this file is supposed to only be
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used native. When will HP ever learn that they need to provide the
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used native. When will HP ever learn that they need to provide the
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same functionality in all their libraries! */
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same functionality in all their libraries! */
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#include <dlfcn.h>
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#include <dlfcn.h>
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#include <elf.h>
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#include <elf.h>
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#include <elf_hp.h>
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#include <elf_hp.h>
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#include "defs.h"
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#include "defs.h"
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#include "frame.h"
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#include "frame.h"
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#include "bfd.h"
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#include "bfd.h"
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#include "libhppa.h"
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#include "libhppa.h"
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#include "gdbcore.h"
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#include "gdbcore.h"
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#include "symtab.h"
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#include "symtab.h"
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#include "breakpoint.h"
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#include "breakpoint.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 "inferior.h"
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#include "inferior.h"
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#include "gdb-stabs.h"
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#include "gdb-stabs.h"
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#include "gdb_stat.h"
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#include "gdb_stat.h"
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#include "gdbcmd.h"
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#include "gdbcmd.h"
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#include "assert.h"
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#include "assert.h"
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#include "language.h"
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#include "language.h"
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#include <fcntl.h>
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#include <fcntl.h>
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#ifndef O_BINARY
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#ifndef O_BINARY
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#define O_BINARY 0
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#define O_BINARY 0
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#endif
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#endif
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/* Defined in exec.c; used to prevent dangling pointer bug. */
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/* Defined in exec.c; used to prevent dangling pointer bug. */
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extern struct target_ops exec_ops;
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extern struct target_ops exec_ops;
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static CORE_ADDR
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static CORE_ADDR
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bfd_lookup_symbol PARAMS ((bfd *, char *));
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bfd_lookup_symbol PARAMS ((bfd *, char *));
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/* This lives in hppa-tdep.c. */
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/* This lives in hppa-tdep.c. */
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extern struct unwind_table_entry *find_unwind_entry PARAMS ((CORE_ADDR pc));
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extern struct unwind_table_entry *find_unwind_entry PARAMS ((CORE_ADDR pc));
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/* These ought to be defined in some public interface, but aren't. They
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/* These ought to be defined in some public interface, but aren't. They
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identify dynamic linker events. */
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identify dynamic linker events. */
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#define DLD_CB_LOAD 1
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#define DLD_CB_LOAD 1
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#define DLD_CB_UNLOAD 0
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#define DLD_CB_UNLOAD 0
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/* A structure to keep track of all the known shared objects. */
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/* A structure to keep track of all the known shared objects. */
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struct so_list
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struct so_list
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{
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{
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bfd *abfd;
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bfd *abfd;
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char *name;
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char *name;
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struct so_list *next;
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struct so_list *next;
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struct objfile *objfile;
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struct objfile *objfile;
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CORE_ADDR pa64_solib_desc_addr;
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CORE_ADDR pa64_solib_desc_addr;
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struct load_module_desc pa64_solib_desc;
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struct load_module_desc pa64_solib_desc;
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struct section_table *sections;
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struct section_table *sections;
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struct section_table *sections_end;
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struct section_table *sections_end;
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boolean loaded;
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boolean loaded;
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};
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};
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static struct so_list *so_list_head;
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static struct so_list *so_list_head;
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/* This is the cumulative size in bytes of the symbol tables of all
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/* This is the cumulative size in bytes of the symbol tables of all
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shared objects on the so_list_head list. (When we say size, here
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shared objects on the so_list_head list. (When we say size, here
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we mean of the information before it is brought into memory and
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we mean of the information before it is brought into memory and
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potentially expanded by GDB.) When adding a new shlib, this value
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potentially expanded by GDB.) When adding a new shlib, this value
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is compared against the threshold size, held by auto_solib_add
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is compared against the threshold size, held by auto_solib_add
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(in megabytes). If adding symbols for the new shlib would cause
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(in megabytes). If adding symbols for the new shlib would cause
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the total size to exceed the threshold, then the new shlib's symbols
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the total size to exceed the threshold, then the new shlib's symbols
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are not loaded. */
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are not loaded. */
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static LONGEST pa64_solib_total_st_size;
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static LONGEST pa64_solib_total_st_size;
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/* When the threshold is reached for any shlib, we refuse to add
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/* When the threshold is reached for any shlib, we refuse to add
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symbols for subsequent shlibs, even if those shlibs' symbols would
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symbols for subsequent shlibs, even if those shlibs' symbols would
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be small enough to fit under the threshold. (Although this may
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be small enough to fit under the threshold. (Although this may
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result in one, early large shlib preventing the loading of later,
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result in one, early large shlib preventing the loading of later,
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smalller shlibs' symbols, it allows us to issue one informational
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smalller shlibs' symbols, it allows us to issue one informational
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message. The alternative, to issue a message for each shlib whose
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message. The alternative, to issue a message for each shlib whose
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symbols aren't loaded, could be a big annoyance where the threshold
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symbols aren't loaded, could be a big annoyance where the threshold
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is exceeded due to a very large number of shlibs.) */
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is exceeded due to a very large number of shlibs.) */
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static int pa64_solib_st_size_threshold_exceeded;
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static int pa64_solib_st_size_threshold_exceeded;
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/* When adding fields, be sure to clear them in _initialize_pa64_solib. */
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/* When adding fields, be sure to clear them in _initialize_pa64_solib. */
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typedef struct
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typedef struct
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{
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{
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CORE_ADDR dld_flags_addr;
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CORE_ADDR dld_flags_addr;
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long long dld_flags;
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long long dld_flags;
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sec_ptr dyninfo_sect;
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sec_ptr dyninfo_sect;
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boolean have_read_dld_descriptor;
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boolean have_read_dld_descriptor;
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boolean is_valid;
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boolean is_valid;
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CORE_ADDR load_map;
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CORE_ADDR load_map;
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CORE_ADDR load_map_addr;
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CORE_ADDR load_map_addr;
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struct load_module_desc dld_desc;
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struct load_module_desc dld_desc;
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}
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}
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dld_cache_t;
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dld_cache_t;
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static dld_cache_t dld_cache;
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static dld_cache_t dld_cache;
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static void pa64_sharedlibrary_info_command PARAMS ((char *, int));
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static void pa64_sharedlibrary_info_command PARAMS ((char *, int));
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static void pa64_solib_sharedlibrary_command PARAMS ((char *, int));
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static void pa64_solib_sharedlibrary_command PARAMS ((char *, int));
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static void * pa64_target_read_memory PARAMS ((void *, CORE_ADDR, size_t, int));
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static void * pa64_target_read_memory PARAMS ((void *, CORE_ADDR, size_t, int));
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static boolean read_dld_descriptor PARAMS ((struct target_ops *));
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static boolean read_dld_descriptor PARAMS ((struct target_ops *));
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static boolean read_dynamic_info PARAMS ((asection *, dld_cache_t *));
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static boolean read_dynamic_info PARAMS ((asection *, dld_cache_t *));
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static void add_to_solist PARAMS ((boolean, char *, struct load_module_desc *,
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static void add_to_solist PARAMS ((boolean, char *, struct load_module_desc *,
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CORE_ADDR, struct target_ops *));
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CORE_ADDR, struct target_ops *));
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/* When examining the shared library for debugging information we have to
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/* When examining the shared library for debugging information we have to
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look for HP debug symbols, stabs and dwarf2 debug symbols. */
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look for HP debug symbols, stabs and dwarf2 debug symbols. */
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static char *pa64_debug_section_names[] = {
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static char *pa64_debug_section_names[] = {
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".debug_header", ".debug_gntt", ".debug_lntt", ".debug_slt", ".debug_vt",
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".debug_header", ".debug_gntt", ".debug_lntt", ".debug_slt", ".debug_vt",
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".stabs", ".stabstr", ".debug_info", ".debug_abbrev", ".debug_aranges",
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".stabs", ".stabstr", ".debug_info", ".debug_abbrev", ".debug_aranges",
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".debug_macinfo", ".debug_line", ".debug_loc", ".debug_pubnames",
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".debug_macinfo", ".debug_line", ".debug_loc", ".debug_pubnames",
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".debug_str", NULL
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".debug_str", NULL
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};
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};
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/* Return a ballbark figure for the amount of memory GDB will need to
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/* Return a ballbark figure for the amount of memory GDB will need to
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allocate to read in the debug symbols from FILENAME. */
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allocate to read in the debug symbols from FILENAME. */
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static LONGEST
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static LONGEST
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pa64_solib_sizeof_symbol_table (filename)
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pa64_solib_sizeof_symbol_table (filename)
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char *filename;
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char *filename;
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{
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{
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bfd *abfd;
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bfd *abfd;
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int i;
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int i;
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int desc;
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int desc;
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char *absolute_name;
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char *absolute_name;
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LONGEST st_size = (LONGEST) 0;
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LONGEST st_size = (LONGEST) 0;
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asection *sect;
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asection *sect;
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/* We believe that filename was handed to us by the dynamic linker, and
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/* We believe that filename was handed to us by the dynamic linker, and
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is therefore always an absolute path. */
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is therefore always an absolute path. */
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desc = openp (getenv ("PATH"), 1, filename, O_RDONLY | O_BINARY,
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desc = openp (getenv ("PATH"), 1, filename, O_RDONLY | O_BINARY,
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0, &absolute_name);
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0, &absolute_name);
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if (desc < 0)
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if (desc < 0)
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{
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{
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perror_with_name (filename);
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perror_with_name (filename);
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}
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}
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filename = absolute_name;
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filename = absolute_name;
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abfd = bfd_fdopenr (filename, gnutarget, desc);
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abfd = bfd_fdopenr (filename, gnutarget, desc);
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if (!abfd)
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if (!abfd)
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{
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{
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close (desc);
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close (desc);
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make_cleanup (free, filename);
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make_cleanup (free, filename);
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error ("\"%s\": can't open to read symbols: %s.", filename,
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error ("\"%s\": can't open to read symbols: %s.", filename,
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bfd_errmsg (bfd_get_error ()));
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bfd_errmsg (bfd_get_error ()));
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}
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}
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if (!bfd_check_format (abfd, bfd_object))
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if (!bfd_check_format (abfd, bfd_object))
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{
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{
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bfd_close (abfd);
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bfd_close (abfd);
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make_cleanup (free, filename);
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make_cleanup (free, filename);
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error ("\"%s\": can't read symbols: %s.", filename,
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error ("\"%s\": can't read symbols: %s.", filename,
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bfd_errmsg (bfd_get_error ()));
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bfd_errmsg (bfd_get_error ()));
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}
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}
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/* Sum the sizes of the various sections that compose debug info. */
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/* Sum the sizes of the various sections that compose debug info. */
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for (i = 0; pa64_debug_section_names[i] != NULL; i++)
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for (i = 0; pa64_debug_section_names[i] != NULL; i++)
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{
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{
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asection *sect;
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asection *sect;
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sect = bfd_get_section_by_name (abfd, pa64_debug_section_names[i]);
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sect = bfd_get_section_by_name (abfd, pa64_debug_section_names[i]);
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if (sect)
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if (sect)
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st_size += (LONGEST)bfd_section_size (abfd, sect);
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st_size += (LONGEST)bfd_section_size (abfd, sect);
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}
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}
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bfd_close (abfd);
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bfd_close (abfd);
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free (filename);
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free (filename);
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/* Unfortunately, just summing the sizes of various debug info
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/* Unfortunately, just summing the sizes of various debug info
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sections isn't a very accurate measurement of how much heap
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sections isn't a very accurate measurement of how much heap
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space the debugger will need to hold them. It also doesn't
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space the debugger will need to hold them. It also doesn't
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account for space needed by linker (aka "minimal") symbols.
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account for space needed by linker (aka "minimal") symbols.
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Anecdotal evidence suggests that just summing the sizes of
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Anecdotal evidence suggests that just summing the sizes of
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debug-info-related sections understates the heap space needed
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debug-info-related sections understates the heap space needed
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to represent it internally by about an order of magnitude.
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to represent it internally by about an order of magnitude.
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Since it's not exactly brain surgery we're doing here, rather
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Since it's not exactly brain surgery we're doing here, rather
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than attempt to more accurately measure the size of a shlib's
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than attempt to more accurately measure the size of a shlib's
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symbol table in GDB's heap, we'll just apply a 10x fudge-
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symbol table in GDB's heap, we'll just apply a 10x fudge-
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factor to the debug info sections' size-sum. No, this doesn't
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factor to the debug info sections' size-sum. No, this doesn't
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account for minimal symbols in non-debuggable shlibs. But it
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account for minimal symbols in non-debuggable shlibs. But it
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all roughly washes out in the end. */
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all roughly washes out in the end. */
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return st_size * (LONGEST) 10;
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return st_size * (LONGEST) 10;
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}
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}
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/* Add a shared library to the objfile list and load its symbols into
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/* Add a shared library to the objfile list and load its symbols into
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GDB's symbol table. */
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GDB's symbol table. */
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static void
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static void
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pa64_solib_add_solib_objfile (so, name, from_tty, text_addr)
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pa64_solib_add_solib_objfile (so, name, from_tty, text_addr)
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struct so_list *so;
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struct so_list *so;
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char *name;
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char *name;
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int from_tty;
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int from_tty;
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CORE_ADDR text_addr;
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CORE_ADDR text_addr;
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{
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{
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bfd *tmp_bfd;
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bfd *tmp_bfd;
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asection *sec;
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asection *sec;
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obj_private_data_t *obj_private;
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obj_private_data_t *obj_private;
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struct section_addr_info section_addrs;
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struct section_addr_info section_addrs;
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memset (§ion_addrs, 0, sizeof (section_addrs));
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memset (§ion_addrs, 0, sizeof (section_addrs));
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/* We need the BFD so that we can look at its sections. We open up the
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/* We need the BFD so that we can look at its sections. We open up the
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file temporarily, then close it when we are done. */
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file temporarily, then close it when we are done. */
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tmp_bfd = bfd_openr (name, gnutarget);
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tmp_bfd = bfd_openr (name, gnutarget);
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if (tmp_bfd == NULL)
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if (tmp_bfd == NULL)
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{
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{
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perror_with_name (name);
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perror_with_name (name);
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return;
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return;
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}
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}
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if (!bfd_check_format (tmp_bfd, bfd_object))
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if (!bfd_check_format (tmp_bfd, bfd_object))
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{
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{
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bfd_close (tmp_bfd);
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bfd_close (tmp_bfd);
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error ("\"%s\" is not an object file: %s", name,
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error ("\"%s\" is not an object file: %s", name,
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bfd_errmsg (bfd_get_error ()));
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bfd_errmsg (bfd_get_error ()));
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}
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}
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/* Undo some braindamage from symfile.c.
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/* Undo some braindamage from symfile.c.
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|
|
First, symfile.c will subtract the VMA of the first .text section
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First, symfile.c will subtract the VMA of the first .text section
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in the shared library that it finds. Undo that. */
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in the shared library that it finds. Undo that. */
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sec = bfd_get_section_by_name (tmp_bfd, ".text");
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sec = bfd_get_section_by_name (tmp_bfd, ".text");
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text_addr += bfd_section_vma (tmp_bfd, sec);
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text_addr += bfd_section_vma (tmp_bfd, sec);
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|
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/* Now find the true lowest section in the shared library. */
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/* Now find the true lowest section in the shared library. */
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sec = NULL;
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sec = NULL;
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bfd_map_over_sections (tmp_bfd, find_lowest_section, (PTR) &sec);
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bfd_map_over_sections (tmp_bfd, find_lowest_section, (PTR) &sec);
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|
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if (sec)
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if (sec)
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{
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{
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/* Subtract out the VMA of the lowest section. */
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/* Subtract out the VMA of the lowest section. */
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text_addr -= bfd_section_vma (tmp_bfd, sec);
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text_addr -= bfd_section_vma (tmp_bfd, sec);
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|
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/* ??? Add back in the filepos of that lowest section. */
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/* ??? Add back in the filepos of that lowest section. */
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text_addr += sec->filepos;
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text_addr += sec->filepos;
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}
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}
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|
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/* We are done with the temporary bfd. Get rid of it and make sure
|
/* We are done with the temporary bfd. Get rid of it and make sure
|
nobody else can us it. */
|
nobody else can us it. */
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bfd_close (tmp_bfd);
|
bfd_close (tmp_bfd);
|
tmp_bfd = NULL;
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tmp_bfd = NULL;
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|
|
/* Now let the generic code load up symbols for this library. */
|
/* Now let the generic code load up symbols for this library. */
|
section_addrs.text_addr = text_addr;
|
section_addrs.text_addr = text_addr;
|
so->objfile = symbol_file_add (name, from_tty, §ion_addrs, 0, OBJF_SHARED);
|
so->objfile = symbol_file_add (name, from_tty, §ion_addrs, 0, OBJF_SHARED);
|
so->abfd = so->objfile->obfd;
|
so->abfd = so->objfile->obfd;
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|
|
/* Mark this as a shared library and save private data. */
|
/* Mark this as a shared library and save private data. */
|
so->objfile->flags |= OBJF_SHARED;
|
so->objfile->flags |= OBJF_SHARED;
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|
|
if (so->objfile->obj_private == NULL)
|
if (so->objfile->obj_private == NULL)
|
{
|
{
|
obj_private = (obj_private_data_t *)
|
obj_private = (obj_private_data_t *)
|
obstack_alloc (&so->objfile->psymbol_obstack,
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obstack_alloc (&so->objfile->psymbol_obstack,
|
sizeof (obj_private_data_t));
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sizeof (obj_private_data_t));
|
obj_private->unwind_info = NULL;
|
obj_private->unwind_info = NULL;
|
obj_private->so_info = NULL;
|
obj_private->so_info = NULL;
|
so->objfile->obj_private = (PTR) obj_private;
|
so->objfile->obj_private = (PTR) obj_private;
|
}
|
}
|
|
|
obj_private = (obj_private_data_t *) so->objfile->obj_private;
|
obj_private = (obj_private_data_t *) so->objfile->obj_private;
|
obj_private->so_info = so;
|
obj_private->so_info = so;
|
obj_private->dp = so->pa64_solib_desc.linkage_ptr;
|
obj_private->dp = so->pa64_solib_desc.linkage_ptr;
|
}
|
}
|
|
|
/* Load debugging information for a shared library. TARGET may be
|
/* Load debugging information for a shared library. TARGET may be
|
NULL if we are not attaching to a process or reading a core file. */
|
NULL if we are not attaching to a process or reading a core file. */
|
|
|
static void
|
static void
|
pa64_solib_load_symbols (so, name, from_tty, text_addr, target)
|
pa64_solib_load_symbols (so, name, from_tty, text_addr, target)
|
struct so_list *so;
|
struct so_list *so;
|
char *name;
|
char *name;
|
int from_tty;
|
int from_tty;
|
CORE_ADDR text_addr;
|
CORE_ADDR text_addr;
|
struct target_ops *target;
|
struct target_ops *target;
|
{
|
{
|
struct section_table *p;
|
struct section_table *p;
|
asection *sec;
|
asection *sec;
|
int status;
|
int status;
|
char buf[4];
|
char buf[4];
|
CORE_ADDR presumed_data_start;
|
CORE_ADDR presumed_data_start;
|
|
|
if (text_addr == 0)
|
if (text_addr == 0)
|
text_addr = so->pa64_solib_desc.text_base;
|
text_addr = so->pa64_solib_desc.text_base;
|
|
|
pa64_solib_add_solib_objfile (so, name, from_tty, text_addr);
|
pa64_solib_add_solib_objfile (so, name, from_tty, text_addr);
|
|
|
/* Now we need to build a section table for this library since
|
/* Now we need to build a section table for this library since
|
we might be debugging a core file from a dynamically linked
|
we might be debugging a core file from a dynamically linked
|
executable in which the libraries were not privately mapped. */
|
executable in which the libraries were not privately mapped. */
|
if (build_section_table (so->abfd,
|
if (build_section_table (so->abfd,
|
&so->sections,
|
&so->sections,
|
&so->sections_end))
|
&so->sections_end))
|
{
|
{
|
error ("Unable to build section table for shared library\n.");
|
error ("Unable to build section table for shared library\n.");
|
return;
|
return;
|
}
|
}
|
|
|
ANOFFSET (so->objfile->section_offsets, SECT_OFF_TEXT)
|
ANOFFSET (so->objfile->section_offsets, SECT_OFF_TEXT)
|
= so->pa64_solib_desc.text_base;
|
= so->pa64_solib_desc.text_base;
|
ANOFFSET (so->objfile->section_offsets, SECT_OFF_DATA)
|
ANOFFSET (so->objfile->section_offsets, SECT_OFF_DATA)
|
= so->pa64_solib_desc.data_base;
|
= so->pa64_solib_desc.data_base;
|
|
|
/* Relocate all the sections based on where they got loaded. */
|
/* Relocate all the sections based on where they got loaded. */
|
for (p = so->sections; p < so->sections_end; p++)
|
for (p = so->sections; p < so->sections_end; p++)
|
{
|
{
|
if (p->the_bfd_section->flags & SEC_CODE)
|
if (p->the_bfd_section->flags & SEC_CODE)
|
{
|
{
|
p->addr += ANOFFSET (so->objfile->section_offsets, SECT_OFF_TEXT);
|
p->addr += ANOFFSET (so->objfile->section_offsets, SECT_OFF_TEXT);
|
p->endaddr += ANOFFSET (so->objfile->section_offsets, SECT_OFF_TEXT);
|
p->endaddr += ANOFFSET (so->objfile->section_offsets, SECT_OFF_TEXT);
|
}
|
}
|
else if (p->the_bfd_section->flags & SEC_DATA)
|
else if (p->the_bfd_section->flags & SEC_DATA)
|
{
|
{
|
p->addr += ANOFFSET (so->objfile->section_offsets, SECT_OFF_DATA);
|
p->addr += ANOFFSET (so->objfile->section_offsets, SECT_OFF_DATA);
|
p->endaddr += ANOFFSET (so->objfile->section_offsets, SECT_OFF_DATA);
|
p->endaddr += ANOFFSET (so->objfile->section_offsets, SECT_OFF_DATA);
|
}
|
}
|
}
|
}
|
|
|
/* Now see if we need to map in the text and data for this shared
|
/* Now see if we need to map in the text and data for this shared
|
library (for example debugging a core file which does not use
|
library (for example debugging a core file which does not use
|
private shared libraries.).
|
private shared libraries.).
|
|
|
Carefully peek at the first text address in the library. If the
|
Carefully peek at the first text address in the library. If the
|
read succeeds, then the libraries were privately mapped and were
|
read succeeds, then the libraries were privately mapped and were
|
included in the core dump file.
|
included in the core dump file.
|
|
|
If the peek failed, then the libraries were not privately mapped
|
If the peek failed, then the libraries were not privately mapped
|
and are not in the core file, we'll have to read them in ourselves. */
|
and are not in the core file, we'll have to read them in ourselves. */
|
status = target_read_memory (text_addr, buf, 4);
|
status = target_read_memory (text_addr, buf, 4);
|
if (status != 0)
|
if (status != 0)
|
{
|
{
|
int new, old;
|
int new, old;
|
|
|
new = so->sections_end - so->sections;
|
new = so->sections_end - so->sections;
|
|
|
old = target_resize_to_sections (target, new);
|
old = target_resize_to_sections (target, new);
|
|
|
/* Copy over the old data before it gets clobbered. */
|
/* Copy over the old data before it gets clobbered. */
|
memcpy ((char *) (target->to_sections + old),
|
memcpy ((char *) (target->to_sections + old),
|
so->sections,
|
so->sections,
|
((sizeof (struct section_table)) * new));
|
((sizeof (struct section_table)) * new));
|
}
|
}
|
}
|
}
|
|
|
|
|
/* Add symbols from shared libraries into the symtab list, unless the
|
/* Add symbols from shared libraries into the symtab list, unless the
|
size threshold (specified by auto_solib_add, in megabytes) would
|
size threshold (specified by auto_solib_add, in megabytes) would
|
be exceeded. */
|
be exceeded. */
|
|
|
void
|
void
|
pa64_solib_add (arg_string, from_tty, target)
|
pa64_solib_add (arg_string, from_tty, target)
|
char *arg_string;
|
char *arg_string;
|
int from_tty;
|
int from_tty;
|
struct target_ops *target;
|
struct target_ops *target;
|
{
|
{
|
struct minimal_symbol *msymbol;
|
struct minimal_symbol *msymbol;
|
CORE_ADDR addr;
|
CORE_ADDR addr;
|
asection *shlib_info;
|
asection *shlib_info;
|
int status;
|
int status;
|
unsigned int dld_flags;
|
unsigned int dld_flags;
|
char buf[4], *re_err;
|
char buf[4], *re_err;
|
int threshold_warning_given = 0;
|
int threshold_warning_given = 0;
|
int dll_index;
|
int dll_index;
|
struct load_module_desc dll_desc;
|
struct load_module_desc dll_desc;
|
char *dll_path;
|
char *dll_path;
|
|
|
/* First validate our arguments. */
|
/* First validate our arguments. */
|
if ((re_err = re_comp (arg_string ? arg_string : ".")) != NULL)
|
if ((re_err = re_comp (arg_string ? arg_string : ".")) != NULL)
|
{
|
{
|
error ("Invalid regexp: %s", re_err);
|
error ("Invalid regexp: %s", re_err);
|
}
|
}
|
|
|
/* If we're debugging a core file, or have attached to a running
|
/* If we're debugging a core file, or have attached to a running
|
process, then pa64_solib_create_inferior_hook will not have been
|
process, then pa64_solib_create_inferior_hook will not have been
|
called.
|
called.
|
|
|
We need to first determine if we're dealing with a dynamically
|
We need to first determine if we're dealing with a dynamically
|
linked executable. If not, then return without an error or warning.
|
linked executable. If not, then return without an error or warning.
|
|
|
We also need to examine __dld_flags to determine if the shared library
|
We also need to examine __dld_flags to determine if the shared library
|
list is valid and to determine if the libraries have been privately
|
list is valid and to determine if the libraries have been privately
|
mapped. */
|
mapped. */
|
if (symfile_objfile == NULL)
|
if (symfile_objfile == NULL)
|
return;
|
return;
|
|
|
/* First see if the objfile was dynamically linked. */
|
/* First see if the objfile was dynamically linked. */
|
shlib_info = bfd_get_section_by_name (symfile_objfile->obfd, ".dynamic");
|
shlib_info = bfd_get_section_by_name (symfile_objfile->obfd, ".dynamic");
|
if (!shlib_info)
|
if (!shlib_info)
|
return;
|
return;
|
|
|
/* It's got a .dynamic section, make sure it's not empty. */
|
/* It's got a .dynamic section, make sure it's not empty. */
|
if (bfd_section_size (symfile_objfile->obfd, shlib_info) == 0)
|
if (bfd_section_size (symfile_objfile->obfd, shlib_info) == 0)
|
return;
|
return;
|
|
|
/* Read in the load map pointer if we have not done so already. */
|
/* Read in the load map pointer if we have not done so already. */
|
if (! dld_cache.have_read_dld_descriptor)
|
if (! dld_cache.have_read_dld_descriptor)
|
if (! read_dld_descriptor (target))
|
if (! read_dld_descriptor (target))
|
return;
|
return;
|
|
|
/* If the libraries were not mapped private, warn the user. */
|
/* If the libraries were not mapped private, warn the user. */
|
if ((dld_cache.dld_flags & DT_HP_DEBUG_PRIVATE) == 0)
|
if ((dld_cache.dld_flags & DT_HP_DEBUG_PRIVATE) == 0)
|
warning ("The shared libraries were not privately mapped; setting a\nbreakpoint in a shared library will not work until you rerun the program.\n");
|
warning ("The shared libraries were not privately mapped; setting a\nbreakpoint in a shared library will not work until you rerun the program.\n");
|
|
|
/* For each shaerd library, add it to the shared library list. */
|
/* For each shaerd library, add it to the shared library list. */
|
for (dll_index = 1; ; dll_index++)
|
for (dll_index = 1; ; dll_index++)
|
{
|
{
|
/* Read in the load module descriptor. */
|
/* Read in the load module descriptor. */
|
if (dlgetmodinfo (dll_index, &dll_desc, sizeof (dll_desc),
|
if (dlgetmodinfo (dll_index, &dll_desc, sizeof (dll_desc),
|
pa64_target_read_memory, 0, dld_cache.load_map)
|
pa64_target_read_memory, 0, dld_cache.load_map)
|
== 0)
|
== 0)
|
return;
|
return;
|
|
|
/* Get the name of the shared library. */
|
/* Get the name of the shared library. */
|
dll_path = (char *)dlgetname (&dll_desc, sizeof (dll_desc),
|
dll_path = (char *)dlgetname (&dll_desc, sizeof (dll_desc),
|
pa64_target_read_memory,
|
pa64_target_read_memory,
|
0, dld_cache.load_map);
|
0, dld_cache.load_map);
|
|
|
if (!dll_path)
|
if (!dll_path)
|
error ("pa64_solib_add, unable to read shared library path.");
|
error ("pa64_solib_add, unable to read shared library path.");
|
|
|
add_to_solist (from_tty, dll_path, &dll_desc, 0, target);
|
add_to_solist (from_tty, dll_path, &dll_desc, 0, target);
|
}
|
}
|
}
|
}
|
|
|
|
|
/* This hook gets called just before the first instruction in the
|
/* This hook gets called just before the first instruction in the
|
inferior process is executed.
|
inferior process is executed.
|
|
|
This is our opportunity to set magic flags in the inferior so
|
This is our opportunity to set magic flags in the inferior so
|
that GDB can be notified when a shared library is mapped in and
|
that GDB can be notified when a shared library is mapped in and
|
to tell the dynamic linker that a private copy of the library is
|
to tell the dynamic linker that a private copy of the library is
|
needed (so GDB can set breakpoints in the library).
|
needed (so GDB can set breakpoints in the library).
|
|
|
We need to set two flag bits in this routine.
|
We need to set two flag bits in this routine.
|
|
|
DT_HP_DEBUG_PRIVATE to indicate that shared libraries should be
|
DT_HP_DEBUG_PRIVATE to indicate that shared libraries should be
|
mapped private.
|
mapped private.
|
|
|
DT_HP_DEBUG_CALLBACK to indicate that we want the dynamic linker to
|
DT_HP_DEBUG_CALLBACK to indicate that we want the dynamic linker to
|
call the breakpoint routine for significant events. */
|
call the breakpoint routine for significant events. */
|
|
|
void
|
void
|
pa64_solib_create_inferior_hook ()
|
pa64_solib_create_inferior_hook ()
|
{
|
{
|
struct minimal_symbol *msymbol;
|
struct minimal_symbol *msymbol;
|
unsigned int dld_flags, status;
|
unsigned int dld_flags, status;
|
asection *shlib_info, *interp_sect;
|
asection *shlib_info, *interp_sect;
|
char buf[4];
|
char buf[4];
|
struct objfile *objfile;
|
struct objfile *objfile;
|
CORE_ADDR anaddr;
|
CORE_ADDR anaddr;
|
|
|
/* First, remove all the solib event breakpoints. Their addresses
|
/* First, remove all the solib event breakpoints. Their addresses
|
may have changed since the last time we ran the program. */
|
may have changed since the last time we ran the program. */
|
remove_solib_event_breakpoints ();
|
remove_solib_event_breakpoints ();
|
|
|
if (symfile_objfile == NULL)
|
if (symfile_objfile == NULL)
|
return;
|
return;
|
|
|
/* First see if the objfile was dynamically linked. */
|
/* First see if the objfile was dynamically linked. */
|
shlib_info = bfd_get_section_by_name (symfile_objfile->obfd, ".dynamic");
|
shlib_info = bfd_get_section_by_name (symfile_objfile->obfd, ".dynamic");
|
if (!shlib_info)
|
if (!shlib_info)
|
return;
|
return;
|
|
|
/* It's got a .dynamic section, make sure it's not empty. */
|
/* It's got a .dynamic section, make sure it's not empty. */
|
if (bfd_section_size (symfile_objfile->obfd, shlib_info) == 0)
|
if (bfd_section_size (symfile_objfile->obfd, shlib_info) == 0)
|
return;
|
return;
|
|
|
/* Read in the .dynamic section. */
|
/* Read in the .dynamic section. */
|
if (! read_dynamic_info (shlib_info, &dld_cache))
|
if (! read_dynamic_info (shlib_info, &dld_cache))
|
error ("Unable to read the .dynamic section.");
|
error ("Unable to read the .dynamic section.");
|
|
|
/* Turn on the flags we care about. */
|
/* Turn on the flags we care about. */
|
dld_cache.dld_flags |= DT_HP_DEBUG_PRIVATE;
|
dld_cache.dld_flags |= DT_HP_DEBUG_PRIVATE;
|
dld_cache.dld_flags |= DT_HP_DEBUG_CALLBACK;
|
dld_cache.dld_flags |= DT_HP_DEBUG_CALLBACK;
|
status = target_write_memory (dld_cache.dld_flags_addr,
|
status = target_write_memory (dld_cache.dld_flags_addr,
|
(char *) &dld_cache.dld_flags,
|
(char *) &dld_cache.dld_flags,
|
sizeof (dld_cache.dld_flags));
|
sizeof (dld_cache.dld_flags));
|
if (status != 0)
|
if (status != 0)
|
error ("Unable to modify dynamic linker flags.");
|
error ("Unable to modify dynamic linker flags.");
|
|
|
/* Now we have to create a shared library breakpoint in the dynamic
|
/* Now we have to create a shared library breakpoint in the dynamic
|
linker. This can be somewhat tricky since the symbol is inside
|
linker. This can be somewhat tricky since the symbol is inside
|
the dynamic linker (for which we do not have symbols or a base
|
the dynamic linker (for which we do not have symbols or a base
|
load address! Luckily I wrote this code for solib.c years ago. */
|
load address! Luckily I wrote this code for solib.c years ago. */
|
interp_sect = bfd_get_section_by_name (exec_bfd, ".interp");
|
interp_sect = bfd_get_section_by_name (exec_bfd, ".interp");
|
if (interp_sect)
|
if (interp_sect)
|
{
|
{
|
unsigned int interp_sect_size;
|
unsigned int interp_sect_size;
|
char *buf;
|
char *buf;
|
CORE_ADDR load_addr;
|
CORE_ADDR load_addr;
|
bfd *tmp_bfd;
|
bfd *tmp_bfd;
|
CORE_ADDR sym_addr = 0;
|
CORE_ADDR sym_addr = 0;
|
|
|
/* Read the contents of the .interp section into a local buffer;
|
/* Read the contents of the .interp section into a local buffer;
|
the contents specify the dynamic linker this program uses. */
|
the contents specify the dynamic linker this program uses. */
|
interp_sect_size = bfd_section_size (exec_bfd, interp_sect);
|
interp_sect_size = bfd_section_size (exec_bfd, interp_sect);
|
buf = alloca (interp_sect_size);
|
buf = alloca (interp_sect_size);
|
bfd_get_section_contents (exec_bfd, interp_sect,
|
bfd_get_section_contents (exec_bfd, interp_sect,
|
buf, 0, interp_sect_size);
|
buf, 0, interp_sect_size);
|
|
|
/* Now we need to figure out where the dynamic linker was
|
/* Now we need to figure out where the dynamic linker was
|
loaded so that we can load its symbols and place a breakpoint
|
loaded so that we can load its symbols and place a breakpoint
|
in the dynamic linker itself.
|
in the dynamic linker itself.
|
|
|
This address is stored on the stack. However, I've been unable
|
This address is stored on the stack. However, I've been unable
|
to find any magic formula to find it for Solaris (appears to
|
to find any magic formula to find it for Solaris (appears to
|
be trivial on GNU/Linux). Therefore, we have to try an alternate
|
be trivial on GNU/Linux). Therefore, we have to try an alternate
|
mechanism to find the dynamic linker's base address. */
|
mechanism to find the dynamic linker's base address. */
|
tmp_bfd = bfd_openr (buf, gnutarget);
|
tmp_bfd = bfd_openr (buf, gnutarget);
|
if (tmp_bfd == NULL)
|
if (tmp_bfd == NULL)
|
goto get_out;
|
goto get_out;
|
|
|
/* Make sure the dynamic linker's really a useful object. */
|
/* Make sure the dynamic linker's really a useful object. */
|
if (!bfd_check_format (tmp_bfd, bfd_object))
|
if (!bfd_check_format (tmp_bfd, bfd_object))
|
{
|
{
|
warning ("Unable to grok dynamic linker %s as an object file", buf);
|
warning ("Unable to grok dynamic linker %s as an object file", buf);
|
bfd_close (tmp_bfd);
|
bfd_close (tmp_bfd);
|
goto get_out;
|
goto get_out;
|
}
|
}
|
|
|
/* We find the dynamic linker's base address by examining the
|
/* We find the dynamic linker's base address by examining the
|
current pc (which point at the entry point for the dynamic
|
current pc (which point at the entry point for the dynamic
|
linker) and subtracting the offset of the entry point.
|
linker) and subtracting the offset of the entry point.
|
|
|
Also note the breakpoint is the second instruction in the
|
Also note the breakpoint is the second instruction in the
|
routine. */
|
routine. */
|
load_addr = read_pc () - tmp_bfd->start_address;
|
load_addr = read_pc () - tmp_bfd->start_address;
|
sym_addr = bfd_lookup_symbol (tmp_bfd, "__dld_break");
|
sym_addr = bfd_lookup_symbol (tmp_bfd, "__dld_break");
|
sym_addr = load_addr + sym_addr + 4;
|
sym_addr = load_addr + sym_addr + 4;
|
|
|
/* Create the shared library breakpoint. */
|
/* Create the shared library breakpoint. */
|
{
|
{
|
struct breakpoint *b
|
struct breakpoint *b
|
= create_solib_event_breakpoint (sym_addr);
|
= create_solib_event_breakpoint (sym_addr);
|
|
|
/* The breakpoint is actually hard-coded into the dynamic linker,
|
/* The breakpoint is actually hard-coded into the dynamic linker,
|
so we don't need to actually insert a breakpoint instruction
|
so we don't need to actually insert a breakpoint instruction
|
there. In fact, the dynamic linker's code is immutable, even to
|
there. In fact, the dynamic linker's code is immutable, even to
|
ttrace, so we shouldn't even try to do that. For cases like
|
ttrace, so we shouldn't even try to do that. For cases like
|
this, we have "permanent" breakpoints. */
|
this, we have "permanent" breakpoints. */
|
make_breakpoint_permanent (b);
|
make_breakpoint_permanent (b);
|
}
|
}
|
|
|
/* We're done with the temporary bfd. */
|
/* We're done with the temporary bfd. */
|
bfd_close (tmp_bfd);
|
bfd_close (tmp_bfd);
|
}
|
}
|
|
|
get_out:
|
get_out:
|
/* Wipe out all knowledge of old shared libraries since their
|
/* Wipe out all knowledge of old shared libraries since their
|
mapping can change from one exec to another! */
|
mapping can change from one exec to another! */
|
while (so_list_head)
|
while (so_list_head)
|
{
|
{
|
struct so_list *temp;
|
struct so_list *temp;
|
|
|
temp = so_list_head;
|
temp = so_list_head;
|
free (so_list_head);
|
free (so_list_head);
|
so_list_head = temp->next;
|
so_list_head = temp->next;
|
}
|
}
|
clear_symtab_users ();
|
clear_symtab_users ();
|
}
|
}
|
|
|
/* This operation removes the "hook" between GDB and the dynamic linker,
|
/* This operation removes the "hook" between GDB and the dynamic linker,
|
which causes the dld to notify GDB of shared library events.
|
which causes the dld to notify GDB of shared library events.
|
|
|
After this operation completes, the dld will no longer notify GDB of
|
After this operation completes, the dld will no longer notify GDB of
|
shared library events. To resume notifications, GDB must call
|
shared library events. To resume notifications, GDB must call
|
pa64_solib_create_inferior_hook.
|
pa64_solib_create_inferior_hook.
|
|
|
This operation does not remove any knowledge of shared libraries which
|
This operation does not remove any knowledge of shared libraries which
|
GDB may already have been notified of. */
|
GDB may already have been notified of. */
|
|
|
void
|
void
|
pa64_solib_remove_inferior_hook (pid)
|
pa64_solib_remove_inferior_hook (pid)
|
int pid;
|
int pid;
|
{
|
{
|
/* Turn off the DT_HP_DEBUG_CALLBACK bit in the dynamic linker flags. */
|
/* Turn off the DT_HP_DEBUG_CALLBACK bit in the dynamic linker flags. */
|
dld_cache.dld_flags &= ~DT_HP_DEBUG_CALLBACK;
|
dld_cache.dld_flags &= ~DT_HP_DEBUG_CALLBACK;
|
target_write_memory (dld_cache.dld_flags_addr,
|
target_write_memory (dld_cache.dld_flags_addr,
|
(char *)&dld_cache.dld_flags,
|
(char *)&dld_cache.dld_flags,
|
sizeof (dld_cache.dld_flags));
|
sizeof (dld_cache.dld_flags));
|
}
|
}
|
|
|
/* This function creates a breakpoint on the dynamic linker hook, which
|
/* This function creates a breakpoint on the dynamic linker hook, which
|
is called when e.g., a shl_load or shl_unload call is made. This
|
is called when e.g., a shl_load or shl_unload call is made. This
|
breakpoint will only trigger when a shl_load call is made.
|
breakpoint will only trigger when a shl_load call is made.
|
|
|
If filename is NULL, then loads of any dll will be caught. Else,
|
If filename is NULL, then loads of any dll will be caught. Else,
|
only loads of the file whose pathname is the string contained by
|
only loads of the file whose pathname is the string contained by
|
filename will be caught.
|
filename will be caught.
|
|
|
Undefined behaviour is guaranteed if this function is called before
|
Undefined behaviour is guaranteed if this function is called before
|
pa64_solib_create_inferior_hook. */
|
pa64_solib_create_inferior_hook. */
|
|
|
void
|
void
|
pa64_solib_create_catch_load_hook (pid, tempflag, filename, cond_string)
|
pa64_solib_create_catch_load_hook (pid, tempflag, filename, cond_string)
|
int pid;
|
int pid;
|
int tempflag;
|
int tempflag;
|
char *filename;
|
char *filename;
|
char *cond_string;
|
char *cond_string;
|
{
|
{
|
create_solib_load_event_breakpoint ("", tempflag, filename, cond_string);
|
create_solib_load_event_breakpoint ("", tempflag, filename, cond_string);
|
}
|
}
|
|
|
/* This function creates a breakpoint on the dynamic linker hook, which
|
/* This function creates a breakpoint on the dynamic linker hook, which
|
is called when e.g., a shl_load or shl_unload call is made. This
|
is called when e.g., a shl_load or shl_unload call is made. This
|
breakpoint will only trigger when a shl_unload call is made.
|
breakpoint will only trigger when a shl_unload call is made.
|
|
|
If filename is NULL, then unloads of any dll will be caught. Else,
|
If filename is NULL, then unloads of any dll will be caught. Else,
|
only unloads of the file whose pathname is the string contained by
|
only unloads of the file whose pathname is the string contained by
|
filename will be caught.
|
filename will be caught.
|
|
|
Undefined behaviour is guaranteed if this function is called before
|
Undefined behaviour is guaranteed if this function is called before
|
pa64_solib_create_inferior_hook. */
|
pa64_solib_create_inferior_hook. */
|
|
|
void
|
void
|
pa64_solib_create_catch_unload_hook (pid, tempflag, filename, cond_string)
|
pa64_solib_create_catch_unload_hook (pid, tempflag, filename, cond_string)
|
int pid;
|
int pid;
|
int tempflag;
|
int tempflag;
|
char *filename;
|
char *filename;
|
char *cond_string;
|
char *cond_string;
|
{
|
{
|
create_solib_unload_event_breakpoint ("", tempflag, filename, cond_string);
|
create_solib_unload_event_breakpoint ("", tempflag, filename, cond_string);
|
}
|
}
|
|
|
/* Return nonzero if the dynamic linker has reproted that a library
|
/* Return nonzero if the dynamic linker has reproted that a library
|
has been loaded. */
|
has been loaded. */
|
|
|
int
|
int
|
pa64_solib_have_load_event (pid)
|
pa64_solib_have_load_event (pid)
|
int pid;
|
int pid;
|
{
|
{
|
CORE_ADDR event_kind;
|
CORE_ADDR event_kind;
|
|
|
event_kind = read_register (ARG0_REGNUM);
|
event_kind = read_register (ARG0_REGNUM);
|
return (event_kind == DLD_CB_LOAD);
|
return (event_kind == DLD_CB_LOAD);
|
}
|
}
|
|
|
/* Return nonzero if the dynamic linker has reproted that a library
|
/* Return nonzero if the dynamic linker has reproted that a library
|
has been unloaded. */
|
has been unloaded. */
|
int
|
int
|
pa64_solib_have_unload_event (pid)
|
pa64_solib_have_unload_event (pid)
|
int pid;
|
int pid;
|
{
|
{
|
CORE_ADDR event_kind;
|
CORE_ADDR event_kind;
|
|
|
event_kind = read_register (ARG0_REGNUM);
|
event_kind = read_register (ARG0_REGNUM);
|
return (event_kind == DLD_CB_UNLOAD);
|
return (event_kind == DLD_CB_UNLOAD);
|
}
|
}
|
|
|
/* Return a pointer to a string indicating the pathname of the most
|
/* Return a pointer to a string indicating the pathname of the most
|
recently loaded library.
|
recently loaded library.
|
|
|
The caller is reposible for copying the string before the inferior is
|
The caller is reposible for copying the string before the inferior is
|
restarted. */
|
restarted. */
|
|
|
char *
|
char *
|
pa64_solib_loaded_library_pathname (pid)
|
pa64_solib_loaded_library_pathname (pid)
|
int pid;
|
int pid;
|
{
|
{
|
static char dll_path[MAXPATHLEN];
|
static char dll_path[MAXPATHLEN];
|
CORE_ADDR dll_path_addr = read_register (ARG3_REGNUM);
|
CORE_ADDR dll_path_addr = read_register (ARG3_REGNUM);
|
read_memory_string (dll_path_addr, dll_path, MAXPATHLEN);
|
read_memory_string (dll_path_addr, dll_path, MAXPATHLEN);
|
return dll_path;
|
return dll_path;
|
}
|
}
|
|
|
/* Return a pointer to a string indicating the pathname of the most
|
/* Return a pointer to a string indicating the pathname of the most
|
recently unloaded library.
|
recently unloaded library.
|
|
|
The caller is reposible for copying the string before the inferior is
|
The caller is reposible for copying the string before the inferior is
|
restarted. */
|
restarted. */
|
|
|
char *
|
char *
|
pa64_solib_unloaded_library_pathname (pid)
|
pa64_solib_unloaded_library_pathname (pid)
|
int pid;
|
int pid;
|
{
|
{
|
static char dll_path[MAXPATHLEN];
|
static char dll_path[MAXPATHLEN];
|
CORE_ADDR dll_path_addr = read_register (ARG3_REGNUM);
|
CORE_ADDR dll_path_addr = read_register (ARG3_REGNUM);
|
read_memory_string (dll_path_addr, dll_path, MAXPATHLEN);
|
read_memory_string (dll_path_addr, dll_path, MAXPATHLEN);
|
return dll_path;
|
return dll_path;
|
}
|
}
|
|
|
/* Return nonzero if PC is an address inside the dynamic linker. */
|
/* Return nonzero if PC is an address inside the dynamic linker. */
|
|
|
int
|
int
|
pa64_solib_in_dynamic_linker (pid, pc)
|
pa64_solib_in_dynamic_linker (pid, pc)
|
int pid;
|
int pid;
|
CORE_ADDR pc;
|
CORE_ADDR pc;
|
{
|
{
|
asection *shlib_info;
|
asection *shlib_info;
|
|
|
if (symfile_objfile == NULL)
|
if (symfile_objfile == NULL)
|
return 0;
|
return 0;
|
|
|
if (!dld_cache.have_read_dld_descriptor)
|
if (!dld_cache.have_read_dld_descriptor)
|
if (!read_dld_descriptor (¤t_target))
|
if (!read_dld_descriptor (¤t_target))
|
return 0;
|
return 0;
|
|
|
return (pc >= dld_cache.dld_desc.text_base
|
return (pc >= dld_cache.dld_desc.text_base
|
&& pc < dld_cache.dld_desc.text_base + dld_cache.dld_desc.text_size);
|
&& pc < dld_cache.dld_desc.text_base + dld_cache.dld_desc.text_size);
|
}
|
}
|
|
|
|
|
/* Return the GOT value for the shared library in which ADDR belongs. If
|
/* Return the GOT value for the shared library in which ADDR belongs. If
|
ADDR isn't in any known shared library, return zero. */
|
ADDR isn't in any known shared library, return zero. */
|
|
|
CORE_ADDR
|
CORE_ADDR
|
pa64_solib_get_got_by_pc (addr)
|
pa64_solib_get_got_by_pc (addr)
|
CORE_ADDR addr;
|
CORE_ADDR addr;
|
{
|
{
|
struct so_list *so_list = so_list_head;
|
struct so_list *so_list = so_list_head;
|
CORE_ADDR got_value = 0;
|
CORE_ADDR got_value = 0;
|
|
|
while (so_list)
|
while (so_list)
|
{
|
{
|
if (so_list->pa64_solib_desc.text_base <= addr
|
if (so_list->pa64_solib_desc.text_base <= addr
|
&& ((so_list->pa64_solib_desc.text_base
|
&& ((so_list->pa64_solib_desc.text_base
|
+ so_list->pa64_solib_desc.text_size)
|
+ so_list->pa64_solib_desc.text_size)
|
> addr))
|
> addr))
|
{
|
{
|
got_value = so_list->pa64_solib_desc.linkage_ptr;
|
got_value = so_list->pa64_solib_desc.linkage_ptr;
|
break;
|
break;
|
}
|
}
|
so_list = so_list->next;
|
so_list = so_list->next;
|
}
|
}
|
return got_value;
|
return got_value;
|
}
|
}
|
|
|
/* Return the address of the handle of the shared library in which ADDR
|
/* Return the address of the handle of the shared library in which ADDR
|
belongs. If ADDR isn't in any known shared library, return zero.
|
belongs. If ADDR isn't in any known shared library, return zero.
|
|
|
This function is used in hppa_fix_call_dummy in hppa-tdep.c. */
|
This function is used in hppa_fix_call_dummy in hppa-tdep.c. */
|
|
|
CORE_ADDR
|
CORE_ADDR
|
pa64_solib_get_solib_by_pc (addr)
|
pa64_solib_get_solib_by_pc (addr)
|
CORE_ADDR addr;
|
CORE_ADDR addr;
|
{
|
{
|
struct so_list *so_list = so_list_head;
|
struct so_list *so_list = so_list_head;
|
CORE_ADDR retval = 0;
|
CORE_ADDR retval = 0;
|
|
|
while (so_list)
|
while (so_list)
|
{
|
{
|
if (so_list->pa64_solib_desc.text_base <= addr
|
if (so_list->pa64_solib_desc.text_base <= addr
|
&& ((so_list->pa64_solib_desc.text_base
|
&& ((so_list->pa64_solib_desc.text_base
|
+ so_list->pa64_solib_desc.text_size)
|
+ so_list->pa64_solib_desc.text_size)
|
> addr))
|
> addr))
|
{
|
{
|
retval = so_list->pa64_solib_desc_addr;
|
retval = so_list->pa64_solib_desc_addr;
|
break;
|
break;
|
}
|
}
|
so_list = so_list->next;
|
so_list = so_list->next;
|
}
|
}
|
return retval;
|
return retval;
|
}
|
}
|
|
|
/* Dump information about all the currently loaded shared libraries. */
|
/* Dump information about all the currently loaded shared libraries. */
|
|
|
static void
|
static void
|
pa64_sharedlibrary_info_command (ignore, from_tty)
|
pa64_sharedlibrary_info_command (ignore, from_tty)
|
char *ignore;
|
char *ignore;
|
int from_tty;
|
int from_tty;
|
{
|
{
|
struct so_list *so_list = so_list_head;
|
struct so_list *so_list = so_list_head;
|
|
|
if (exec_bfd == NULL)
|
if (exec_bfd == NULL)
|
{
|
{
|
printf_unfiltered ("No executable file.\n");
|
printf_unfiltered ("No executable file.\n");
|
return;
|
return;
|
}
|
}
|
|
|
if (so_list == NULL)
|
if (so_list == NULL)
|
{
|
{
|
printf_unfiltered ("No shared libraries loaded at this time.\n");
|
printf_unfiltered ("No shared libraries loaded at this time.\n");
|
return;
|
return;
|
}
|
}
|
|
|
printf_unfiltered ("Shared Object Libraries\n");
|
printf_unfiltered ("Shared Object Libraries\n");
|
printf_unfiltered (" %-19s%-19s%-19s%-19s\n",
|
printf_unfiltered (" %-19s%-19s%-19s%-19s\n",
|
" text start", " text end",
|
" text start", " text end",
|
" data start", " data end");
|
" data start", " data end");
|
while (so_list)
|
while (so_list)
|
{
|
{
|
unsigned int flags;
|
unsigned int flags;
|
|
|
printf_unfiltered ("%s", so_list->name);
|
printf_unfiltered ("%s", so_list->name);
|
if (so_list->objfile == NULL)
|
if (so_list->objfile == NULL)
|
printf_unfiltered (" (symbols not loaded)");
|
printf_unfiltered (" (symbols not loaded)");
|
if (so_list->loaded == 0)
|
if (so_list->loaded == 0)
|
printf_unfiltered (" (shared library unloaded)");
|
printf_unfiltered (" (shared library unloaded)");
|
printf_unfiltered (" %-18s",
|
printf_unfiltered (" %-18s",
|
local_hex_string_custom (so_list->pa64_solib_desc.linkage_ptr,
|
local_hex_string_custom (so_list->pa64_solib_desc.linkage_ptr,
|
"016l"));
|
"016l"));
|
printf_unfiltered ("\n");
|
printf_unfiltered ("\n");
|
printf_unfiltered ("%-18s",
|
printf_unfiltered ("%-18s",
|
local_hex_string_custom (so_list->pa64_solib_desc.text_base,
|
local_hex_string_custom (so_list->pa64_solib_desc.text_base,
|
"016l"));
|
"016l"));
|
printf_unfiltered (" %-18s",
|
printf_unfiltered (" %-18s",
|
local_hex_string_custom ((so_list->pa64_solib_desc.text_base
|
local_hex_string_custom ((so_list->pa64_solib_desc.text_base
|
+ so_list->pa64_solib_desc.text_size),
|
+ so_list->pa64_solib_desc.text_size),
|
"016l"));
|
"016l"));
|
printf_unfiltered (" %-18s",
|
printf_unfiltered (" %-18s",
|
local_hex_string_custom (so_list->pa64_solib_desc.data_base,
|
local_hex_string_custom (so_list->pa64_solib_desc.data_base,
|
"016l"));
|
"016l"));
|
printf_unfiltered (" %-18s\n",
|
printf_unfiltered (" %-18s\n",
|
local_hex_string_custom ((so_list->pa64_solib_desc.data_base
|
local_hex_string_custom ((so_list->pa64_solib_desc.data_base
|
+ so_list->pa64_solib_desc.data_size),
|
+ so_list->pa64_solib_desc.data_size),
|
"016l"));
|
"016l"));
|
so_list = so_list->next;
|
so_list = so_list->next;
|
}
|
}
|
}
|
}
|
|
|
/* Load up one or more shared libraries as directed by the user. */
|
/* Load up one or more shared libraries as directed by the user. */
|
|
|
static void
|
static void
|
pa64_solib_sharedlibrary_command (args, from_tty)
|
pa64_solib_sharedlibrary_command (args, from_tty)
|
char *args;
|
char *args;
|
int from_tty;
|
int from_tty;
|
{
|
{
|
dont_repeat ();
|
dont_repeat ();
|
pa64_solib_add (args, from_tty, (struct target_ops *) 0);
|
pa64_solib_add (args, from_tty, (struct target_ops *) 0);
|
}
|
}
|
|
|
/* Return the name of the shared library containing ADDR or NULL if ADDR
|
/* Return the name of the shared library containing ADDR or NULL if ADDR
|
is not contained in any known shared library. */
|
is not contained in any known shared library. */
|
|
|
char *
|
char *
|
pa64_solib_address (addr)
|
pa64_solib_address (addr)
|
CORE_ADDR addr;
|
CORE_ADDR addr;
|
{
|
{
|
struct so_list *so = so_list_head;
|
struct so_list *so = so_list_head;
|
|
|
while (so)
|
while (so)
|
{
|
{
|
/* Is this address within this shlib's text range? If so,
|
/* Is this address within this shlib's text range? If so,
|
return the shlib's name. */
|
return the shlib's name. */
|
if (addr >= so->pa64_solib_desc.text_base
|
if (addr >= so->pa64_solib_desc.text_base
|
&& addr < (so->pa64_solib_desc.text_base
|
&& addr < (so->pa64_solib_desc.text_base
|
| so->pa64_solib_desc.text_size))
|
| so->pa64_solib_desc.text_size))
|
return so->name;
|
return so->name;
|
|
|
/* Nope, keep looking... */
|
/* Nope, keep looking... */
|
so = so->next;
|
so = so->next;
|
}
|
}
|
|
|
/* No, we couldn't prove that the address is within a shlib. */
|
/* No, we couldn't prove that the address is within a shlib. */
|
return NULL;
|
return NULL;
|
}
|
}
|
|
|
/* We are killing the inferior and restarting the program. */
|
/* We are killing the inferior and restarting the program. */
|
|
|
void
|
void
|
pa64_solib_restart ()
|
pa64_solib_restart ()
|
{
|
{
|
struct so_list *sl = so_list_head;
|
struct so_list *sl = so_list_head;
|
|
|
/* Before the shlib info vanishes, use it to disable any breakpoints
|
/* Before the shlib info vanishes, use it to disable any breakpoints
|
that may still be active in those shlibs. */
|
that may still be active in those shlibs. */
|
disable_breakpoints_in_shlibs (0);
|
disable_breakpoints_in_shlibs (0);
|
|
|
/* Discard all the shlib descriptors. */
|
/* Discard all the shlib descriptors. */
|
while (sl)
|
while (sl)
|
{
|
{
|
struct so_list *next_sl = sl->next;
|
struct so_list *next_sl = sl->next;
|
free (sl);
|
free (sl);
|
sl = next_sl;
|
sl = next_sl;
|
}
|
}
|
so_list_head = NULL;
|
so_list_head = NULL;
|
|
|
pa64_solib_total_st_size = (LONGEST) 0;
|
pa64_solib_total_st_size = (LONGEST) 0;
|
pa64_solib_st_size_threshold_exceeded = 0;
|
pa64_solib_st_size_threshold_exceeded = 0;
|
|
|
dld_cache.is_valid = 0;
|
dld_cache.is_valid = 0;
|
dld_cache.have_read_dld_descriptor = 0;
|
dld_cache.have_read_dld_descriptor = 0;
|
dld_cache.dld_flags_addr = 0;
|
dld_cache.dld_flags_addr = 0;
|
dld_cache.load_map = 0;
|
dld_cache.load_map = 0;
|
dld_cache.load_map_addr = 0;
|
dld_cache.load_map_addr = 0;
|
dld_cache.dld_desc.data_base = 0;
|
dld_cache.dld_desc.data_base = 0;
|
dld_cache.dld_flags = 0;
|
dld_cache.dld_flags = 0;
|
dld_cache.dyninfo_sect = 0;
|
dld_cache.dyninfo_sect = 0;
|
}
|
}
|
|
|
void
|
void
|
_initialize_pa64_solib ()
|
_initialize_pa64_solib ()
|
{
|
{
|
add_com ("sharedlibrary", class_files, pa64_solib_sharedlibrary_command,
|
add_com ("sharedlibrary", class_files, pa64_solib_sharedlibrary_command,
|
"Load shared object library symbols for files matching REGEXP.");
|
"Load shared object library symbols for files matching REGEXP.");
|
add_info ("sharedlibrary", pa64_sharedlibrary_info_command,
|
add_info ("sharedlibrary", pa64_sharedlibrary_info_command,
|
"Status of loaded shared object libraries.");
|
"Status of loaded shared object libraries.");
|
add_show_from_set
|
add_show_from_set
|
(add_set_cmd ("auto-solib-add", class_support, var_zinteger,
|
(add_set_cmd ("auto-solib-add", class_support, var_zinteger,
|
(char *) &auto_solib_add,
|
(char *) &auto_solib_add,
|
"Set autoloading size threshold (in megabytes) of shared library symbols.\n\
|
"Set autoloading size threshold (in megabytes) of shared library symbols.\n\
|
If nonzero, symbols from all shared object libraries will be loaded\n\
|
If nonzero, symbols from all shared object libraries will be loaded\n\
|
automatically when the inferior begins execution or when the dynamic linker\n\
|
automatically when the inferior begins execution or when the dynamic linker\n\
|
informs gdb that a new library has been loaded, until the symbol table\n\
|
informs gdb that a new library has been loaded, until the symbol table\n\
|
of the program and libraries exceeds this threshold.\n\
|
of the program and libraries exceeds this threshold.\n\
|
Otherwise, symbols must be loaded manually, using `sharedlibrary'.",
|
Otherwise, symbols must be loaded manually, using `sharedlibrary'.",
|
&setlist),
|
&setlist),
|
&showlist);
|
&showlist);
|
|
|
/* ??rehrauer: On HP-UX, the kernel parameter MAXDSIZ limits how much
|
/* ??rehrauer: On HP-UX, the kernel parameter MAXDSIZ limits how much
|
data space a process can use. We ought to be reading MAXDSIZ and
|
data space a process can use. We ought to be reading MAXDSIZ and
|
setting auto_solib_add to some large fraction of that value. If
|
setting auto_solib_add to some large fraction of that value. If
|
not that, we maybe ought to be setting it smaller than the default
|
not that, we maybe ought to be setting it smaller than the default
|
for MAXDSIZ (that being 64Mb, I believe). However, [1] this threshold
|
for MAXDSIZ (that being 64Mb, I believe). However, [1] this threshold
|
is only crudely approximated rather than actually measured, and [2]
|
is only crudely approximated rather than actually measured, and [2]
|
50 Mbytes is too small for debugging gdb itself. Thus, the arbitrary
|
50 Mbytes is too small for debugging gdb itself. Thus, the arbitrary
|
100 figure.
|
100 figure.
|
*/
|
*/
|
auto_solib_add = 100; /* Megabytes */
|
auto_solib_add = 100; /* Megabytes */
|
|
|
pa64_solib_restart ();
|
pa64_solib_restart ();
|
}
|
}
|
|
|
/* Get some HPUX-specific data from a shared lib. */
|
/* Get some HPUX-specific data from a shared lib. */
|
CORE_ADDR
|
CORE_ADDR
|
so_lib_thread_start_addr (so)
|
so_lib_thread_start_addr (so)
|
struct so_list *so;
|
struct so_list *so;
|
{
|
{
|
return so->pa64_solib_desc.tls_start_addr;
|
return so->pa64_solib_desc.tls_start_addr;
|
}
|
}
|
|
|
/* Read the dynamic linker's internal shared library descriptor.
|
/* Read the dynamic linker's internal shared library descriptor.
|
|
|
This must happen after dld starts running, so we can't do it in
|
This must happen after dld starts running, so we can't do it in
|
read_dynamic_info. Record the fact that we have loaded the
|
read_dynamic_info. Record the fact that we have loaded the
|
descriptor. If the library is archive bound, then return zero, else
|
descriptor. If the library is archive bound, then return zero, else
|
return nonzero. */
|
return nonzero. */
|
|
|
static boolean
|
static boolean
|
read_dld_descriptor (target)
|
read_dld_descriptor (target)
|
struct target_ops *target;
|
struct target_ops *target;
|
{
|
{
|
char *dll_path;
|
char *dll_path;
|
asection *dyninfo_sect;
|
asection *dyninfo_sect;
|
|
|
/* If necessary call read_dynamic_info to extract the contents of the
|
/* If necessary call read_dynamic_info to extract the contents of the
|
.dynamic section from the shared library. */
|
.dynamic section from the shared library. */
|
if (!dld_cache.is_valid)
|
if (!dld_cache.is_valid)
|
{
|
{
|
if (symfile_objfile == NULL)
|
if (symfile_objfile == NULL)
|
error ("No object file symbols.");
|
error ("No object file symbols.");
|
|
|
dyninfo_sect = bfd_get_section_by_name (symfile_objfile->obfd,
|
dyninfo_sect = bfd_get_section_by_name (symfile_objfile->obfd,
|
".dynamic");
|
".dynamic");
|
if (!dyninfo_sect)
|
if (!dyninfo_sect)
|
{
|
{
|
return 0;
|
return 0;
|
}
|
}
|
|
|
if (!read_dynamic_info (dyninfo_sect, &dld_cache))
|
if (!read_dynamic_info (dyninfo_sect, &dld_cache))
|
error ("Unable to read in .dynamic section information.");
|
error ("Unable to read in .dynamic section information.");
|
}
|
}
|
|
|
/* Read the load map pointer. */
|
/* Read the load map pointer. */
|
if (target_read_memory (dld_cache.load_map_addr,
|
if (target_read_memory (dld_cache.load_map_addr,
|
(char*) &dld_cache.load_map,
|
(char*) &dld_cache.load_map,
|
sizeof(dld_cache.load_map))
|
sizeof(dld_cache.load_map))
|
!= 0)
|
!= 0)
|
{
|
{
|
error ("Error while reading in load map pointer.");
|
error ("Error while reading in load map pointer.");
|
}
|
}
|
|
|
/* Read in the dld load module descriptor */
|
/* Read in the dld load module descriptor */
|
if (dlgetmodinfo (-1,
|
if (dlgetmodinfo (-1,
|
&dld_cache.dld_desc,
|
&dld_cache.dld_desc,
|
sizeof(dld_cache.dld_desc),
|
sizeof(dld_cache.dld_desc),
|
pa64_target_read_memory,
|
pa64_target_read_memory,
|
0,
|
0,
|
dld_cache.load_map)
|
dld_cache.load_map)
|
== 0)
|
== 0)
|
{
|
{
|
error ("Error trying to get information about dynamic linker.");
|
error ("Error trying to get information about dynamic linker.");
|
}
|
}
|
|
|
/* Indicate that we have loaded the dld descriptor. */
|
/* Indicate that we have loaded the dld descriptor. */
|
dld_cache.have_read_dld_descriptor = 1;
|
dld_cache.have_read_dld_descriptor = 1;
|
|
|
/* Add dld.sl to the list of known shared libraries so that we can
|
/* Add dld.sl to the list of known shared libraries so that we can
|
do unwind, etc.
|
do unwind, etc.
|
|
|
?!? This may not be correct. Consider of dld.sl contains symbols
|
?!? This may not be correct. Consider of dld.sl contains symbols
|
which are also referenced/defined by the user program or some user
|
which are also referenced/defined by the user program or some user
|
shared library. We need to make absolutely sure that we do not
|
shared library. We need to make absolutely sure that we do not
|
pollute the namespace from GDB's point of view. */
|
pollute the namespace from GDB's point of view. */
|
dll_path = dlgetname (&dld_cache.dld_desc,
|
dll_path = dlgetname (&dld_cache.dld_desc,
|
sizeof(dld_cache.dld_desc),
|
sizeof(dld_cache.dld_desc),
|
pa64_target_read_memory,
|
pa64_target_read_memory,
|
0,
|
0,
|
dld_cache.load_map);
|
dld_cache.load_map);
|
add_to_solist(0, dll_path, &dld_cache.dld_desc, 0, target);
|
add_to_solist(0, dll_path, &dld_cache.dld_desc, 0, target);
|
|
|
return 1;
|
return 1;
|
}
|
}
|
|
|
/* Read the .dynamic section and extract the information of interest,
|
/* Read the .dynamic section and extract the information of interest,
|
which is stored in dld_cache. The routine elf_locate_base in solib.c
|
which is stored in dld_cache. The routine elf_locate_base in solib.c
|
was used as a model for this. */
|
was used as a model for this. */
|
|
|
static boolean
|
static boolean
|
read_dynamic_info (dyninfo_sect, dld_cache_p)
|
read_dynamic_info (dyninfo_sect, dld_cache_p)
|
asection *dyninfo_sect;
|
asection *dyninfo_sect;
|
dld_cache_t *dld_cache_p;
|
dld_cache_t *dld_cache_p;
|
{
|
{
|
char *buf;
|
char *buf;
|
char *bufend;
|
char *bufend;
|
CORE_ADDR dyninfo_addr;
|
CORE_ADDR dyninfo_addr;
|
int dyninfo_sect_size;
|
int dyninfo_sect_size;
|
CORE_ADDR entry_addr;
|
CORE_ADDR entry_addr;
|
|
|
/* Read in .dynamic section, silently ignore errors. */
|
/* Read in .dynamic section, silently ignore errors. */
|
dyninfo_addr = bfd_section_vma (symfile_objfile->obfd, dyninfo_sect);
|
dyninfo_addr = bfd_section_vma (symfile_objfile->obfd, dyninfo_sect);
|
dyninfo_sect_size = bfd_section_size (exec_bfd, dyninfo_sect);
|
dyninfo_sect_size = bfd_section_size (exec_bfd, dyninfo_sect);
|
buf = alloca (dyninfo_sect_size);
|
buf = alloca (dyninfo_sect_size);
|
if (target_read_memory (dyninfo_addr, buf, dyninfo_sect_size))
|
if (target_read_memory (dyninfo_addr, buf, dyninfo_sect_size))
|
return 0;
|
return 0;
|
|
|
/* Scan the .dynamic section and record the items of interest.
|
/* Scan the .dynamic section and record the items of interest.
|
In particular, DT_HP_DLD_FLAGS */
|
In particular, DT_HP_DLD_FLAGS */
|
for (bufend = buf + dyninfo_sect_size, entry_addr = dyninfo_addr;
|
for (bufend = buf + dyninfo_sect_size, entry_addr = dyninfo_addr;
|
buf < bufend;
|
buf < bufend;
|
buf += sizeof (Elf64_Dyn), entry_addr += sizeof (Elf64_Dyn))
|
buf += sizeof (Elf64_Dyn), entry_addr += sizeof (Elf64_Dyn))
|
{
|
{
|
Elf64_Dyn *x_dynp = (Elf64_Dyn*)buf;
|
Elf64_Dyn *x_dynp = (Elf64_Dyn*)buf;
|
Elf64_Sxword dyn_tag;
|
Elf64_Sxword dyn_tag;
|
CORE_ADDR dyn_ptr;
|
CORE_ADDR dyn_ptr;
|
char pbuf[TARGET_PTR_BIT / HOST_CHAR_BIT];
|
char pbuf[TARGET_PTR_BIT / HOST_CHAR_BIT];
|
|
|
dyn_tag = bfd_h_get_64 (symfile_objfile->obfd,
|
dyn_tag = bfd_h_get_64 (symfile_objfile->obfd,
|
(bfd_byte*) &x_dynp->d_tag);
|
(bfd_byte*) &x_dynp->d_tag);
|
|
|
/* We can't use a switch here because dyn_tag is 64 bits and HP's
|
/* We can't use a switch here because dyn_tag is 64 bits and HP's
|
lame comiler does not handle 64bit items in switch statements. */
|
lame comiler does not handle 64bit items in switch statements. */
|
if (dyn_tag == DT_NULL)
|
if (dyn_tag == DT_NULL)
|
break;
|
break;
|
else if (dyn_tag == DT_HP_DLD_FLAGS)
|
else if (dyn_tag == DT_HP_DLD_FLAGS)
|
{
|
{
|
/* Set dld_flags_addr and dld_flags in *dld_cache_p */
|
/* Set dld_flags_addr and dld_flags in *dld_cache_p */
|
dld_cache_p->dld_flags_addr = entry_addr + offsetof(Elf64_Dyn, d_un);
|
dld_cache_p->dld_flags_addr = entry_addr + offsetof(Elf64_Dyn, d_un);
|
if (target_read_memory (dld_cache_p->dld_flags_addr,
|
if (target_read_memory (dld_cache_p->dld_flags_addr,
|
(char*) &dld_cache_p->dld_flags,
|
(char*) &dld_cache_p->dld_flags,
|
sizeof(dld_cache_p->dld_flags))
|
sizeof(dld_cache_p->dld_flags))
|
!= 0)
|
!= 0)
|
{
|
{
|
error ("Error while reading in .dynamic section of the program.");
|
error ("Error while reading in .dynamic section of the program.");
|
}
|
}
|
}
|
}
|
else if (dyn_tag == DT_HP_LOAD_MAP)
|
else if (dyn_tag == DT_HP_LOAD_MAP)
|
{
|
{
|
/* Dld will place the address of the load map at load_map_addr
|
/* Dld will place the address of the load map at load_map_addr
|
after it starts running. */
|
after it starts running. */
|
if (target_read_memory (entry_addr + offsetof(Elf64_Dyn,
|
if (target_read_memory (entry_addr + offsetof(Elf64_Dyn,
|
d_un.d_ptr),
|
d_un.d_ptr),
|
(char*) &dld_cache_p->load_map_addr,
|
(char*) &dld_cache_p->load_map_addr,
|
sizeof(dld_cache_p->load_map_addr))
|
sizeof(dld_cache_p->load_map_addr))
|
!= 0)
|
!= 0)
|
{
|
{
|
error ("Error while reading in .dynamic section of the program.");
|
error ("Error while reading in .dynamic section of the program.");
|
}
|
}
|
}
|
}
|
else
|
else
|
{
|
{
|
/* tag is not of interest */
|
/* tag is not of interest */
|
}
|
}
|
}
|
}
|
|
|
/* Record other information and set is_valid to 1. */
|
/* Record other information and set is_valid to 1. */
|
dld_cache_p->dyninfo_sect = dyninfo_sect;
|
dld_cache_p->dyninfo_sect = dyninfo_sect;
|
|
|
/* Verify that we read in required info. These fields are re-set to zero
|
/* Verify that we read in required info. These fields are re-set to zero
|
in pa64_solib_restart. */
|
in pa64_solib_restart. */
|
|
|
if (dld_cache_p->dld_flags_addr != 0 && dld_cache_p->load_map_addr != 0)
|
if (dld_cache_p->dld_flags_addr != 0 && dld_cache_p->load_map_addr != 0)
|
dld_cache_p->is_valid = 1;
|
dld_cache_p->is_valid = 1;
|
else
|
else
|
return 0;
|
return 0;
|
|
|
return 1;
|
return 1;
|
}
|
}
|
|
|
/* Wrapper for target_read_memory to make dlgetmodinfo happy. */
|
/* Wrapper for target_read_memory to make dlgetmodinfo happy. */
|
|
|
static void *
|
static void *
|
pa64_target_read_memory (buffer, ptr, bufsiz, ident)
|
pa64_target_read_memory (buffer, ptr, bufsiz, ident)
|
void *buffer;
|
void *buffer;
|
CORE_ADDR ptr;
|
CORE_ADDR ptr;
|
size_t bufsiz;
|
size_t bufsiz;
|
int ident;
|
int ident;
|
{
|
{
|
if (target_read_memory (ptr, buffer, bufsiz) != 0)
|
if (target_read_memory (ptr, buffer, bufsiz) != 0)
|
return 0;
|
return 0;
|
return buffer;
|
return buffer;
|
}
|
}
|
|
|
/* Called from handle_dynlink_load_event and pa64_solib_add to add
|
/* Called from handle_dynlink_load_event and pa64_solib_add to add
|
a shared library to so_list_head list and possibly to read in the
|
a shared library to so_list_head list and possibly to read in the
|
debug information for the library.
|
debug information for the library.
|
|
|
If load_module_desc_p is NULL, then the load module descriptor must
|
If load_module_desc_p is NULL, then the load module descriptor must
|
be read from the inferior process at the address load_module_desc_addr. */
|
be read from the inferior process at the address load_module_desc_addr. */
|
|
|
static void
|
static void
|
add_to_solist (from_tty, dll_path, load_module_desc_p,
|
add_to_solist (from_tty, dll_path, load_module_desc_p,
|
load_module_desc_addr, target)
|
load_module_desc_addr, target)
|
boolean from_tty;
|
boolean from_tty;
|
char *dll_path;
|
char *dll_path;
|
struct load_module_desc *load_module_desc_p;
|
struct load_module_desc *load_module_desc_p;
|
CORE_ADDR load_module_desc_addr;
|
CORE_ADDR load_module_desc_addr;
|
struct target_ops *target;
|
struct target_ops *target;
|
{
|
{
|
struct so_list *new_so, *so_list_tail;
|
struct so_list *new_so, *so_list_tail;
|
int pa64_solib_st_size_threshhold_exceeded;
|
int pa64_solib_st_size_threshhold_exceeded;
|
LONGEST st_size;
|
LONGEST st_size;
|
|
|
if (symfile_objfile == NULL)
|
if (symfile_objfile == NULL)
|
return;
|
return;
|
|
|
so_list_tail = so_list_head;
|
so_list_tail = so_list_head;
|
/* Find the end of the list of shared objects. */
|
/* Find the end of the list of shared objects. */
|
while (so_list_tail && so_list_tail->next)
|
while (so_list_tail && so_list_tail->next)
|
{
|
{
|
if (strcmp (so_list_tail->name, dll_path) == 0)
|
if (strcmp (so_list_tail->name, dll_path) == 0)
|
return;
|
return;
|
so_list_tail = so_list_tail->next;
|
so_list_tail = so_list_tail->next;
|
}
|
}
|
|
|
if (so_list_tail && strcmp (so_list_tail->name, dll_path) == 0)
|
if (so_list_tail && strcmp (so_list_tail->name, dll_path) == 0)
|
return;
|
return;
|
|
|
/* Add the shared library to the so_list_head list */
|
/* Add the shared library to the so_list_head list */
|
new_so = (struct so_list *) xmalloc (sizeof (struct so_list));
|
new_so = (struct so_list *) xmalloc (sizeof (struct so_list));
|
memset ((char *)new_so, 0, sizeof (struct so_list));
|
memset ((char *)new_so, 0, sizeof (struct so_list));
|
if (so_list_head == NULL)
|
if (so_list_head == NULL)
|
{
|
{
|
so_list_head = new_so;
|
so_list_head = new_so;
|
so_list_tail = new_so;
|
so_list_tail = new_so;
|
}
|
}
|
else
|
else
|
{
|
{
|
so_list_tail->next = new_so;
|
so_list_tail->next = new_so;
|
so_list_tail = new_so;
|
so_list_tail = new_so;
|
}
|
}
|
|
|
/* Initialize the new_so */
|
/* Initialize the new_so */
|
if (load_module_desc_p)
|
if (load_module_desc_p)
|
{
|
{
|
new_so->pa64_solib_desc = *load_module_desc_p;
|
new_so->pa64_solib_desc = *load_module_desc_p;
|
}
|
}
|
else
|
else
|
{
|
{
|
if (target_read_memory (load_module_desc_addr,
|
if (target_read_memory (load_module_desc_addr,
|
(char*) &new_so->pa64_solib_desc,
|
(char*) &new_so->pa64_solib_desc,
|
sizeof(struct load_module_desc))
|
sizeof(struct load_module_desc))
|
!= 0)
|
!= 0)
|
{
|
{
|
error ("Error while reading in dynamic library %s", dll_path);
|
error ("Error while reading in dynamic library %s", dll_path);
|
}
|
}
|
}
|
}
|
|
|
new_so->pa64_solib_desc_addr = load_module_desc_addr;
|
new_so->pa64_solib_desc_addr = load_module_desc_addr;
|
new_so->loaded = 1;
|
new_so->loaded = 1;
|
new_so->name = obsavestring (dll_path, strlen(dll_path),
|
new_so->name = obsavestring (dll_path, strlen(dll_path),
|
&symfile_objfile->symbol_obstack);
|
&symfile_objfile->symbol_obstack);
|
|
|
/* If we are not going to load the library, tell the user if we
|
/* If we are not going to load the library, tell the user if we
|
haven't already and return. */
|
haven't already and return. */
|
|
|
st_size = pa64_solib_sizeof_symbol_table (dll_path);
|
st_size = pa64_solib_sizeof_symbol_table (dll_path);
|
pa64_solib_st_size_threshhold_exceeded =
|
pa64_solib_st_size_threshhold_exceeded =
|
!from_tty
|
!from_tty
|
&& ( (st_size + pa64_solib_total_st_size)
|
&& ( (st_size + pa64_solib_total_st_size)
|
> (auto_solib_add * (LONGEST)1000000));
|
> (auto_solib_add * (LONGEST)1000000));
|
if (pa64_solib_st_size_threshhold_exceeded)
|
if (pa64_solib_st_size_threshhold_exceeded)
|
{
|
{
|
pa64_solib_add_solib_objfile (new_so, dll_path, from_tty, 1);
|
pa64_solib_add_solib_objfile (new_so, dll_path, from_tty, 1);
|
return;
|
return;
|
}
|
}
|
|
|
/* Now read in debug info. */
|
/* Now read in debug info. */
|
pa64_solib_total_st_size += st_size;
|
pa64_solib_total_st_size += st_size;
|
|
|
/* This fills in new_so->objfile, among others. */
|
/* This fills in new_so->objfile, among others. */
|
pa64_solib_load_symbols (new_so,
|
pa64_solib_load_symbols (new_so,
|
dll_path,
|
dll_path,
|
from_tty,
|
from_tty,
|
0);
|
0);
|
return;
|
return;
|
}
|
}
|
|
|
|
|
/*
|
/*
|
LOCAL FUNCTION
|
LOCAL FUNCTION
|
|
|
bfd_lookup_symbol -- lookup the value for a specific symbol
|
bfd_lookup_symbol -- lookup the value for a specific symbol
|
|
|
SYNOPSIS
|
SYNOPSIS
|
|
|
CORE_ADDR bfd_lookup_symbol (bfd *abfd, char *symname)
|
CORE_ADDR bfd_lookup_symbol (bfd *abfd, char *symname)
|
|
|
DESCRIPTION
|
DESCRIPTION
|
|
|
An expensive way to lookup the value of a single symbol for
|
An expensive way to lookup the value of a single symbol for
|
bfd's that are only temporary anyway. This is used by the
|
bfd's that are only temporary anyway. This is used by the
|
shared library support to find the address of the debugger
|
shared library support to find the address of the debugger
|
interface structures in the shared library.
|
interface structures in the shared library.
|
|
|
Note that 0 is specifically allowed as an error return (no
|
Note that 0 is specifically allowed as an error return (no
|
such symbol).
|
such symbol).
|
*/
|
*/
|
|
|
static CORE_ADDR
|
static CORE_ADDR
|
bfd_lookup_symbol (abfd, symname)
|
bfd_lookup_symbol (abfd, symname)
|
bfd *abfd;
|
bfd *abfd;
|
char *symname;
|
char *symname;
|
{
|
{
|
unsigned int storage_needed;
|
unsigned int storage_needed;
|
asymbol *sym;
|
asymbol *sym;
|
asymbol **symbol_table;
|
asymbol **symbol_table;
|
unsigned int number_of_symbols;
|
unsigned int number_of_symbols;
|
unsigned int i;
|
unsigned int i;
|
struct cleanup *back_to;
|
struct cleanup *back_to;
|
CORE_ADDR symaddr = 0;
|
CORE_ADDR symaddr = 0;
|
|
|
storage_needed = bfd_get_symtab_upper_bound (abfd);
|
storage_needed = bfd_get_symtab_upper_bound (abfd);
|
|
|
if (storage_needed > 0)
|
if (storage_needed > 0)
|
{
|
{
|
symbol_table = (asymbol **) xmalloc (storage_needed);
|
symbol_table = (asymbol **) xmalloc (storage_needed);
|
back_to = make_cleanup (free, (PTR) symbol_table);
|
back_to = make_cleanup (free, (PTR) symbol_table);
|
number_of_symbols = bfd_canonicalize_symtab (abfd, symbol_table);
|
number_of_symbols = bfd_canonicalize_symtab (abfd, symbol_table);
|
|
|
for (i = 0; i < number_of_symbols; i++)
|
for (i = 0; i < number_of_symbols; i++)
|
{
|
{
|
sym = *symbol_table++;
|
sym = *symbol_table++;
|
if (STREQ (sym->name, symname))
|
if (STREQ (sym->name, symname))
|
{
|
{
|
/* Bfd symbols are section relative. */
|
/* Bfd symbols are section relative. */
|
symaddr = sym->value + sym->section->vma;
|
symaddr = sym->value + sym->section->vma;
|
break;
|
break;
|
}
|
}
|
}
|
}
|
do_cleanups (back_to);
|
do_cleanups (back_to);
|
}
|
}
|
return (symaddr);
|
return (symaddr);
|
}
|
}
|
|
|
|
|
