1999-04-16 01:35:26 +00:00
|
|
|
/* Read a symbol table in MIPS' format (Third-Eye).
|
2001-03-06 08:22:02 +00:00
|
|
|
Copyright 1986, 1987, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996,
|
2004-02-14 Elena Zannoni <ezannoni@redhat.com>
* symfile.c (init_entry_point_info, entry_point_address): Move
from here...
* objfiles.c (init_entry_point_info, entry_point_address):..to
here.
* symfile.h (init_entry_point_info, entry_point_address): Remove
prototypes.
* objfiles.h (init_entry_point_info, entry_point_address):Add
prototypes.
* cris-tdep.c: Remove include of symfile.h. Add include of
objfiles.h.
* infcall.c: Ditto.
* mcore-tdep.c: Ditto.
* mn10300-tdep.c: Ditto.
* sh64-tdep.c: Ditto.
* v850-tdep.c: Ditto.
* arm-tdep.c: Remove include of symfile.h.
* blockframe.c: Ditto.
* coffread.c: Ditto.
* dbxread.c: Ditto.
* dwarf2read.c: Ditto.
* dwarfread.c: Ditto.
* frv-tdep.c: Ditto.
* ia64-tdep.c: Ditto.
* mdebugread.c: Ditto.
* mipsread.c: Ditto.
* rs6000-tdep.c: Ditto.
* s390-tdep.c: Ditto.
* sh-tdep.c: Ditto.
* xstormy16-tdep.c: Ditto.
* gdbarch.sh: Remove include of symfile.h.
* gdbarch.c: Regenerate.
* solib-irix.c (enable_break): Use entry_point_address().
Add comment about include file.
* xcoffread.c: Add comment about include file.
* Makefile.in (arm-tdep.o, blockframe.o, coffread.o, cris-tdep.o)
(dbxread.o, dwarf2read.o, dwarfread.o, frv-tdep.o, gdbarch.o)
(ia64-tdep.o, infcall.o, mcore-tdep.o, mdebugread.o, mipsread.o)
(mn10300-tdep.o, rs6000-nat.o, s390-tdep.o, sh64-tdep.o)
(sh-tdep.o, v850-tdep.o, xstormy16-tdep.o): Update dependencies.
2004-02-14 15:46:33 +00:00
|
|
|
1998, 1999, 2000, 2001, 2003, 2004
|
1999-04-16 01:35:26 +00:00
|
|
|
Free Software Foundation, Inc.
|
|
|
|
Contributed by Alessandro Forin (af@cs.cmu.edu) at CMU. Major work
|
|
|
|
by Per Bothner, John Gilmore and Ian Lance Taylor at Cygnus Support.
|
|
|
|
|
1999-07-07 20:19:36 +00:00
|
|
|
This file is part of GDB.
|
1999-04-16 01:35:26 +00:00
|
|
|
|
1999-07-07 20:19:36 +00:00
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
|
|
it under the terms of the GNU General Public License as published by
|
|
|
|
the Free Software Foundation; either version 2 of the License, or
|
|
|
|
(at your option) any later version.
|
1999-04-16 01:35:26 +00:00
|
|
|
|
1999-07-07 20:19:36 +00:00
|
|
|
This program is distributed in the hope that it will be useful,
|
|
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
|
|
GNU General Public License for more details.
|
1999-04-16 01:35:26 +00:00
|
|
|
|
1999-07-07 20:19:36 +00:00
|
|
|
You should have received a copy of the GNU General Public License
|
|
|
|
along with this program; if not, write to the Free Software
|
|
|
|
Foundation, Inc., 59 Temple Place - Suite 330,
|
|
|
|
Boston, MA 02111-1307, USA. */
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
|
|
/* Read symbols from an ECOFF file. Most of the work is done in
|
|
|
|
mdebugread.c. */
|
|
|
|
|
|
|
|
#include "defs.h"
|
|
|
|
#include "gdb_string.h"
|
|
|
|
#include "bfd.h"
|
|
|
|
#include "symtab.h"
|
|
|
|
#include "objfiles.h"
|
|
|
|
#include "buildsym.h"
|
|
|
|
#include "stabsread.h"
|
|
|
|
|
|
|
|
#include "coff/sym.h"
|
|
|
|
#include "coff/internal.h"
|
|
|
|
#include "coff/ecoff.h"
|
|
|
|
#include "libcoff.h" /* Private BFD COFF information. */
|
|
|
|
#include "libecoff.h" /* Private BFD ECOFF information. */
|
|
|
|
#include "elf/common.h"
|
|
|
|
#include "elf/mips.h"
|
|
|
|
|
2000-05-28 01:12:42 +00:00
|
|
|
extern void _initialize_mipsread (void);
|
1999-05-25 18:09:09 +00:00
|
|
|
|
2000-05-28 01:12:42 +00:00
|
|
|
static void mipscoff_new_init (struct objfile *);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
2000-05-28 01:12:42 +00:00
|
|
|
static void mipscoff_symfile_init (struct objfile *);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
2000-05-28 01:12:42 +00:00
|
|
|
static void mipscoff_symfile_read (struct objfile *, int);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
2000-05-28 01:12:42 +00:00
|
|
|
static void mipscoff_symfile_finish (struct objfile *);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
|
|
static void
|
2000-05-28 01:12:42 +00:00
|
|
|
read_alphacoff_dynamic_symtab (struct section_offsets *,
|
|
|
|
struct objfile *objfile);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
|
|
/* Initialize anything that needs initializing when a completely new
|
|
|
|
symbol file is specified (not just adding some symbols from another
|
|
|
|
file, e.g. a shared library). */
|
|
|
|
|
|
|
|
extern CORE_ADDR sigtramp_address;
|
|
|
|
|
|
|
|
static void
|
2000-07-30 01:48:28 +00:00
|
|
|
mipscoff_new_init (struct objfile *ignore)
|
1999-04-16 01:35:26 +00:00
|
|
|
{
|
|
|
|
sigtramp_address = 0;
|
|
|
|
stabsread_new_init ();
|
|
|
|
buildsym_new_init ();
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Initialize to read a symbol file (nothing to do). */
|
|
|
|
|
|
|
|
static void
|
2000-07-30 01:48:28 +00:00
|
|
|
mipscoff_symfile_init (struct objfile *objfile)
|
1999-04-16 01:35:26 +00:00
|
|
|
{
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Read a symbol file from a file. */
|
|
|
|
|
|
|
|
static void
|
2000-07-30 01:48:28 +00:00
|
|
|
mipscoff_symfile_read (struct objfile *objfile, int mainline)
|
1999-04-16 01:35:26 +00:00
|
|
|
{
|
|
|
|
bfd *abfd = objfile->obfd;
|
1999-07-07 20:19:36 +00:00
|
|
|
struct cleanup *back_to;
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
|
|
init_minimal_symbol_collection ();
|
2000-05-16 04:07:39 +00:00
|
|
|
back_to = make_cleanup_discard_minimal_symbols ();
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
|
|
/* Now that the executable file is positioned at symbol table,
|
|
|
|
process it and define symbols accordingly. */
|
|
|
|
|
|
|
|
if (!((*ecoff_backend (abfd)->debug_swap.read_debug_info)
|
|
|
|
(abfd, (asection *) NULL, &ecoff_data (abfd)->debug_info)))
|
|
|
|
error ("Error reading symbol table: %s", bfd_errmsg (bfd_get_error ()));
|
|
|
|
|
|
|
|
mdebug_build_psymtabs (objfile, &ecoff_backend (abfd)->debug_swap,
|
1999-09-09 00:02:17 +00:00
|
|
|
&ecoff_data (abfd)->debug_info);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
|
|
/* Add alpha coff dynamic symbols. */
|
|
|
|
|
1999-08-09 21:36:23 +00:00
|
|
|
read_alphacoff_dynamic_symtab (objfile->section_offsets, objfile);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
|
|
/* Install any minimal symbols that have been collected as the current
|
|
|
|
minimal symbols for this objfile. */
|
|
|
|
|
|
|
|
install_minimal_symbols (objfile);
|
|
|
|
|
|
|
|
/* If the entry_file bounds are still unknown after processing the
|
|
|
|
partial symbols, then try to set them from the minimal symbols
|
|
|
|
surrounding the entry_point. */
|
|
|
|
|
|
|
|
if (mainline
|
|
|
|
&& objfile->ei.entry_point != INVALID_ENTRY_POINT
|
2003-09-12 18:40:18 +00:00
|
|
|
&& objfile->ei.deprecated_entry_file_lowpc == INVALID_ENTRY_LOWPC)
|
1999-04-16 01:35:26 +00:00
|
|
|
{
|
|
|
|
struct minimal_symbol *m;
|
|
|
|
|
|
|
|
m = lookup_minimal_symbol_by_pc (objfile->ei.entry_point);
|
2003-02-25 David Carlton <carlton@math.stanford.edu>
* symtab.h (SYMBOL_NATURAL_NAME): New macro.
(SYMBOL_LINKAGE_NAME): Ditto.
(SYMBOL_PRINT_NAME): Use SYMBOL_NATURAL_NAME and
SYMBOL_LINKAGE_NAME.
(struct general_symbol_info): Expand comment.
(DEPRECATED_SYMBOL_NAME): Rename from SYMBOL_NAME.
(SYMBOL_MATCHES_NAME): Use DEPRECATED_SYMBOL_NAME.
(SYMBOL_MATCHES_REGEXP): Ditto.
* symtab.c (symbol_natural_name): New function.
* objfiles.h: Replace all uses of SYMBOL_NAME by
DEPRECATED_SYMBOL_NAME.
* xcoffread.c, valops.c, typeprint.c, tracepoint.c: Ditto.
* symtab.c, symmisc.c, symfile.c, stack.c, stabsread.c: Ditto.
* somsolib.c, sol-thread.c, rs6000-tdep.c, p-valprint.c: Ditto.
* printcmd.c, objfiles.c, objc-lang.c, mipsread.c: Ditto.
* minsyms.c, mdebugread.c, linespec.c, jv-lang.c: Ditto.
* i386-tdep.c, i386-linux-tdep.c, hpread.c, hppa-tdep.c: Ditto.
* gnu-v2-abi.c, f-valprint.c, findvar.c, expprint.c: Ditto.
* dwarfread.c, dwarf2read.c, dbxread.c, c-valprint.c: Ditto.
* cp-valprint.c, coffread.c, buildsym.c, breakpoint.c: Ditto.
* blockframe.c, ax-gdb.c, arm-linux-tdep.c, ada-lang.c: Ditto.
* ada-exp.y: Ditto.
* ada-exp.y: Update copyright.
* sol-thread.c, mipsread.c, jv-lang.c, f-valprint.c: Ditto.
* cp-valprint.c: Ditto.
2003-02-25 David Carlton <carlton@math.stanford.edu>
* generic/gdbtk.h: Replace all instances of SYMBOL_NAME by
DEPRECATED_SYMBOL_NAME.
* generic/gdbtk-stack.c, generic/gdbtk-cmds.c: Ditto.
* generic/gdbtk-stack.c, generic/gdbtk-cmds.c: Update copyright.
2003-02-25 David Carlton <carlton@math.stanford.edu>
* mi-cmd-stack.c: Replace all instances of SYMBOL_NAME with
DEPRECATED_SYMBOL_NAME. Update copyright.
2003-02-25 21:36:23 +00:00
|
|
|
if (m && DEPRECATED_SYMBOL_NAME (m + 1))
|
1999-04-16 01:35:26 +00:00
|
|
|
{
|
2003-09-12 18:40:18 +00:00
|
|
|
objfile->ei.deprecated_entry_file_lowpc = SYMBOL_VALUE_ADDRESS (m);
|
|
|
|
objfile->ei.deprecated_entry_file_highpc = SYMBOL_VALUE_ADDRESS (m + 1);
|
1999-04-16 01:35:26 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
do_cleanups (back_to);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Perform any local cleanups required when we are done with a
|
|
|
|
particular objfile. */
|
|
|
|
|
|
|
|
static void
|
2000-07-30 01:48:28 +00:00
|
|
|
mipscoff_symfile_finish (struct objfile *objfile)
|
1999-04-16 01:35:26 +00:00
|
|
|
{
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Alpha OSF/1 encapsulates the dynamic symbols in ELF format in a
|
|
|
|
standard coff section. The ELF format for the symbols differs from
|
|
|
|
the format defined in elf/external.h. It seems that a normal ELF 32 bit
|
|
|
|
format is used, and the representation only changes because longs are
|
|
|
|
64 bit on the alpha. In addition, the handling of text/data section
|
|
|
|
indices for symbols is different from the ELF ABI.
|
|
|
|
As the BFD linker currently does not support dynamic linking on the alpha,
|
|
|
|
there seems to be no reason to pollute BFD with another mixture of object
|
|
|
|
file formats for now. */
|
|
|
|
|
|
|
|
/* Format of an alpha external ELF symbol. */
|
|
|
|
|
1999-07-07 20:19:36 +00:00
|
|
|
typedef struct
|
|
|
|
{
|
|
|
|
unsigned char st_name[4]; /* Symbol name, index in string tbl */
|
|
|
|
unsigned char st_pad[4]; /* Pad to long word boundary */
|
|
|
|
unsigned char st_value[8]; /* Value of the symbol */
|
|
|
|
unsigned char st_size[4]; /* Associated symbol size */
|
|
|
|
unsigned char st_info[1]; /* Type and binding attributes */
|
|
|
|
unsigned char st_other[1]; /* No defined meaning, 0 */
|
|
|
|
unsigned char st_shndx[2]; /* Associated section index */
|
|
|
|
}
|
|
|
|
Elfalpha_External_Sym;
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
|
|
/* Format of an alpha external ELF dynamic info structure. */
|
|
|
|
|
1999-07-07 20:19:36 +00:00
|
|
|
typedef struct
|
|
|
|
{
|
|
|
|
unsigned char d_tag[4]; /* Tag */
|
|
|
|
unsigned char d_pad[4]; /* Pad to long word boundary */
|
|
|
|
union
|
|
|
|
{
|
|
|
|
unsigned char d_ptr[8]; /* Pointer value */
|
|
|
|
unsigned char d_val[4]; /* Integer value */
|
|
|
|
}
|
|
|
|
d_un;
|
|
|
|
}
|
|
|
|
Elfalpha_External_Dyn;
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
|
|
/* Struct to obtain the section pointers for alpha dynamic symbol info. */
|
|
|
|
|
1999-07-07 20:19:36 +00:00
|
|
|
struct alphacoff_dynsecinfo
|
|
|
|
{
|
|
|
|
asection *sym_sect; /* Section pointer for .dynsym section */
|
|
|
|
asection *str_sect; /* Section pointer for .dynstr section */
|
|
|
|
asection *dyninfo_sect; /* Section pointer for .dynamic section */
|
|
|
|
asection *got_sect; /* Section pointer for .got section */
|
|
|
|
};
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
|
|
/* We are called once per section from read_alphacoff_dynamic_symtab.
|
|
|
|
We need to examine each section we are passed, check to see
|
|
|
|
if it is something we are interested in processing, and
|
|
|
|
if so, stash away some access information for the section. */
|
|
|
|
|
|
|
|
static void
|
2002-03-19 19:00:04 +00:00
|
|
|
alphacoff_locate_sections (bfd *ignore_abfd, asection *sectp, void *sip)
|
1999-04-16 01:35:26 +00:00
|
|
|
{
|
2003-09-14 Andrew Cagney <cagney@redhat.com>
* alpha-nat.c: Remove some occurances of "register".
* alpha-tdep.c, arm-tdep.c, blockframe.c, breakpoint.c: Ditto.
* buildsym.c, c-typeprint.c, c-valprint.c, coffread.c: Ditto.
* corefile.c, cp-support.c, cp-valprint.c, cris-tdep.c: Ditto.
* dbxread.c, dcache.c, dwarf2read.c, elfread.c: Ditto.
* environ.c, eval.c, event-top.c, f-typeprint.c: Ditto.
* f-valprint.c, findvar.c, frame.c, gdbtypes.c: Ditto.
* h8300-tdep.c, hppa-tdep.c, hppab-nat.c, hppah-nat.c: Ditto.
* hppam3-nat.c, hpread.c, ia64-aix-nat.c, ia64-linux-nat.c: Ditto.
* infcall.c, infcmd.c, inflow.c, infptrace.c, infrun.c: Ditto.
* infttrace.c, irix5-nat.c, jv-typeprint.c: Ditto.
* jv-valprint.c, m68k-tdep.c, m68klinux-nat.c, main.c: Ditto.
* mdebugread.c, minsyms.c, mips-linux-tdep.c: Ditto.
* mips-nat.c, mips-tdep.c, mipsread.c, mipsv4-nat.c: Ditto.
* ns32k-tdep.c, objfiles.c, p-typeprint.c: Ditto.
* p-valprint.c, ppc-linux-nat.c, printcmd.c: Ditto.
* remote-mips.c, remote-vx.c, rs6000-nat.c: Ditto.
* rs6000-tdep.c, scm-exp.c, sh-tdep.c, sh64-tdep.c: Ditto.
* solib.c, somread.c, source.c, sparc-tdep.c: Ditto.
* stabsread.c, stack.c, standalone.c, symfile.c: Ditto.
* symmisc.c, symtab.c, top.c, tracepoint.c: Ditto.
* typeprint.c, utils.c, valarith.c, valops.c: Ditto.
* values.c, vax-tdep.c, xcoffread.c: Ditto.
2003-09-14 16:32:14 +00:00
|
|
|
struct alphacoff_dynsecinfo *si;
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
|
|
si = (struct alphacoff_dynsecinfo *) sip;
|
|
|
|
|
2003-11-23 Andrew Cagney <cagney@redhat.com>
* symfile.c (symbol_file_command): Replace STREQ with strcmp.
* defs.h (DEPRECATED_STREQN): Rename STREQN.
(DEPRECATED_STREQ): Rename STREQ.
* ada-exp.y, ada-lang.c, ada-lex.l, coffread.c: Update.
* config/mips/tm-irix5.h, config/mips/tm-irix6.h: Update.
* config/mips/tm-mipsv4.h, config/sparc/tm-sun4sol2.h: Update.
* dbxread.c, dwarf2read.c, dwarfread.c, environ.c: Update.
* eval.c, exec.c, f-lang.c, hppa-tdep.c, hpread.c: Update.
* jv-exp.y, language.c, m2-exp.y, mcore-rom.c: Update.
* mdebugread.c, mipsread.c, objc-exp.y, objfiles.c: Update.
* p-exp.y, p-typeprint.c, p-valprint.c, rs6000-nat.c: Update.
* source.c, sparc-tdep.c, stack.c, target.c: Update.
2003-11-23 20:41:17 +00:00
|
|
|
if (DEPRECATED_STREQ (sectp->name, ".dynsym"))
|
1999-04-16 01:35:26 +00:00
|
|
|
{
|
|
|
|
si->sym_sect = sectp;
|
|
|
|
}
|
2003-11-23 Andrew Cagney <cagney@redhat.com>
* symfile.c (symbol_file_command): Replace STREQ with strcmp.
* defs.h (DEPRECATED_STREQN): Rename STREQN.
(DEPRECATED_STREQ): Rename STREQ.
* ada-exp.y, ada-lang.c, ada-lex.l, coffread.c: Update.
* config/mips/tm-irix5.h, config/mips/tm-irix6.h: Update.
* config/mips/tm-mipsv4.h, config/sparc/tm-sun4sol2.h: Update.
* dbxread.c, dwarf2read.c, dwarfread.c, environ.c: Update.
* eval.c, exec.c, f-lang.c, hppa-tdep.c, hpread.c: Update.
* jv-exp.y, language.c, m2-exp.y, mcore-rom.c: Update.
* mdebugread.c, mipsread.c, objc-exp.y, objfiles.c: Update.
* p-exp.y, p-typeprint.c, p-valprint.c, rs6000-nat.c: Update.
* source.c, sparc-tdep.c, stack.c, target.c: Update.
2003-11-23 20:41:17 +00:00
|
|
|
else if (DEPRECATED_STREQ (sectp->name, ".dynstr"))
|
1999-04-16 01:35:26 +00:00
|
|
|
{
|
|
|
|
si->str_sect = sectp;
|
|
|
|
}
|
2003-11-23 Andrew Cagney <cagney@redhat.com>
* symfile.c (symbol_file_command): Replace STREQ with strcmp.
* defs.h (DEPRECATED_STREQN): Rename STREQN.
(DEPRECATED_STREQ): Rename STREQ.
* ada-exp.y, ada-lang.c, ada-lex.l, coffread.c: Update.
* config/mips/tm-irix5.h, config/mips/tm-irix6.h: Update.
* config/mips/tm-mipsv4.h, config/sparc/tm-sun4sol2.h: Update.
* dbxread.c, dwarf2read.c, dwarfread.c, environ.c: Update.
* eval.c, exec.c, f-lang.c, hppa-tdep.c, hpread.c: Update.
* jv-exp.y, language.c, m2-exp.y, mcore-rom.c: Update.
* mdebugread.c, mipsread.c, objc-exp.y, objfiles.c: Update.
* p-exp.y, p-typeprint.c, p-valprint.c, rs6000-nat.c: Update.
* source.c, sparc-tdep.c, stack.c, target.c: Update.
2003-11-23 20:41:17 +00:00
|
|
|
else if (DEPRECATED_STREQ (sectp->name, ".dynamic"))
|
1999-04-16 01:35:26 +00:00
|
|
|
{
|
|
|
|
si->dyninfo_sect = sectp;
|
|
|
|
}
|
2003-11-23 Andrew Cagney <cagney@redhat.com>
* symfile.c (symbol_file_command): Replace STREQ with strcmp.
* defs.h (DEPRECATED_STREQN): Rename STREQN.
(DEPRECATED_STREQ): Rename STREQ.
* ada-exp.y, ada-lang.c, ada-lex.l, coffread.c: Update.
* config/mips/tm-irix5.h, config/mips/tm-irix6.h: Update.
* config/mips/tm-mipsv4.h, config/sparc/tm-sun4sol2.h: Update.
* dbxread.c, dwarf2read.c, dwarfread.c, environ.c: Update.
* eval.c, exec.c, f-lang.c, hppa-tdep.c, hpread.c: Update.
* jv-exp.y, language.c, m2-exp.y, mcore-rom.c: Update.
* mdebugread.c, mipsread.c, objc-exp.y, objfiles.c: Update.
* p-exp.y, p-typeprint.c, p-valprint.c, rs6000-nat.c: Update.
* source.c, sparc-tdep.c, stack.c, target.c: Update.
2003-11-23 20:41:17 +00:00
|
|
|
else if (DEPRECATED_STREQ (sectp->name, ".got"))
|
1999-04-16 01:35:26 +00:00
|
|
|
{
|
|
|
|
si->got_sect = sectp;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Scan an alpha dynamic symbol table for symbols of interest and
|
|
|
|
add them to the minimal symbol table. */
|
|
|
|
|
|
|
|
static void
|
2000-07-30 01:48:28 +00:00
|
|
|
read_alphacoff_dynamic_symtab (struct section_offsets *section_offsets,
|
|
|
|
struct objfile *objfile)
|
1999-04-16 01:35:26 +00:00
|
|
|
{
|
|
|
|
bfd *abfd = objfile->obfd;
|
|
|
|
struct alphacoff_dynsecinfo si;
|
|
|
|
char *sym_secptr;
|
|
|
|
char *str_secptr;
|
|
|
|
char *dyninfo_secptr;
|
|
|
|
char *got_secptr;
|
|
|
|
bfd_size_type sym_secsize;
|
|
|
|
bfd_size_type str_secsize;
|
|
|
|
bfd_size_type dyninfo_secsize;
|
|
|
|
bfd_size_type got_secsize;
|
|
|
|
int sym_count;
|
|
|
|
int i;
|
|
|
|
int stripped;
|
|
|
|
Elfalpha_External_Sym *x_symp;
|
|
|
|
char *dyninfo_p;
|
|
|
|
char *dyninfo_end;
|
|
|
|
int got_entry_size = 8;
|
|
|
|
int dt_mips_local_gotno = -1;
|
|
|
|
int dt_mips_gotsym = -1;
|
2001-02-10 11:12:06 +00:00
|
|
|
struct cleanup *cleanups;
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
|
|
|
|
|
|
/* We currently only know how to handle alpha dynamic symbols. */
|
|
|
|
if (bfd_get_arch (abfd) != bfd_arch_alpha)
|
|
|
|
return;
|
|
|
|
|
|
|
|
/* Locate the dynamic symbols sections and read them in. */
|
|
|
|
memset ((char *) &si, 0, sizeof (si));
|
2002-03-19 19:00:04 +00:00
|
|
|
bfd_map_over_sections (abfd, alphacoff_locate_sections, (void *) & si);
|
1999-04-16 01:35:26 +00:00
|
|
|
if (si.sym_sect == NULL
|
|
|
|
|| si.str_sect == NULL
|
|
|
|
|| si.dyninfo_sect == NULL
|
|
|
|
|| si.got_sect == NULL)
|
|
|
|
return;
|
|
|
|
|
|
|
|
sym_secsize = bfd_get_section_size_before_reloc (si.sym_sect);
|
|
|
|
str_secsize = bfd_get_section_size_before_reloc (si.str_sect);
|
|
|
|
dyninfo_secsize = bfd_get_section_size_before_reloc (si.dyninfo_sect);
|
|
|
|
got_secsize = bfd_get_section_size_before_reloc (si.got_sect);
|
2001-02-10 11:12:06 +00:00
|
|
|
sym_secptr = xmalloc (sym_secsize);
|
|
|
|
cleanups = make_cleanup (free, sym_secptr);
|
|
|
|
str_secptr = xmalloc (str_secsize);
|
|
|
|
make_cleanup (free, str_secptr);
|
|
|
|
dyninfo_secptr = xmalloc (dyninfo_secsize);
|
|
|
|
make_cleanup (free, dyninfo_secptr);
|
|
|
|
got_secptr = xmalloc (got_secsize);
|
|
|
|
make_cleanup (free, got_secptr);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
|
|
if (!bfd_get_section_contents (abfd, si.sym_sect, sym_secptr,
|
1999-07-07 20:19:36 +00:00
|
|
|
(file_ptr) 0, sym_secsize))
|
1999-04-16 01:35:26 +00:00
|
|
|
return;
|
|
|
|
if (!bfd_get_section_contents (abfd, si.str_sect, str_secptr,
|
1999-07-07 20:19:36 +00:00
|
|
|
(file_ptr) 0, str_secsize))
|
1999-04-16 01:35:26 +00:00
|
|
|
return;
|
|
|
|
if (!bfd_get_section_contents (abfd, si.dyninfo_sect, dyninfo_secptr,
|
1999-07-07 20:19:36 +00:00
|
|
|
(file_ptr) 0, dyninfo_secsize))
|
1999-04-16 01:35:26 +00:00
|
|
|
return;
|
|
|
|
if (!bfd_get_section_contents (abfd, si.got_sect, got_secptr,
|
1999-07-07 20:19:36 +00:00
|
|
|
(file_ptr) 0, got_secsize))
|
1999-04-16 01:35:26 +00:00
|
|
|
return;
|
|
|
|
|
|
|
|
/* Find the number of local GOT entries and the index for the
|
|
|
|
the first dynamic symbol in the GOT. */
|
|
|
|
for (dyninfo_p = dyninfo_secptr, dyninfo_end = dyninfo_p + dyninfo_secsize;
|
|
|
|
dyninfo_p < dyninfo_end;
|
|
|
|
dyninfo_p += sizeof (Elfalpha_External_Dyn))
|
|
|
|
{
|
1999-07-07 20:19:36 +00:00
|
|
|
Elfalpha_External_Dyn *x_dynp = (Elfalpha_External_Dyn *) dyninfo_p;
|
1999-04-16 01:35:26 +00:00
|
|
|
long dyn_tag;
|
|
|
|
|
|
|
|
dyn_tag = bfd_h_get_32 (abfd, (bfd_byte *) x_dynp->d_tag);
|
|
|
|
if (dyn_tag == DT_NULL)
|
|
|
|
break;
|
|
|
|
else if (dyn_tag == DT_MIPS_LOCAL_GOTNO)
|
|
|
|
{
|
|
|
|
if (dt_mips_local_gotno < 0)
|
|
|
|
dt_mips_local_gotno
|
|
|
|
= bfd_h_get_32 (abfd, (bfd_byte *) x_dynp->d_un.d_val);
|
|
|
|
}
|
|
|
|
else if (dyn_tag == DT_MIPS_GOTSYM)
|
|
|
|
{
|
|
|
|
if (dt_mips_gotsym < 0)
|
|
|
|
dt_mips_gotsym
|
|
|
|
= bfd_h_get_32 (abfd, (bfd_byte *) x_dynp->d_un.d_val);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if (dt_mips_local_gotno < 0 || dt_mips_gotsym < 0)
|
|
|
|
return;
|
|
|
|
|
|
|
|
/* Scan all dynamic symbols and enter them into the minimal symbol table
|
|
|
|
if appropriate. */
|
|
|
|
sym_count = sym_secsize / sizeof (Elfalpha_External_Sym);
|
|
|
|
stripped = (bfd_get_symcount (abfd) == 0);
|
|
|
|
|
|
|
|
/* Skip first symbol, which is a null dummy. */
|
|
|
|
for (i = 1, x_symp = (Elfalpha_External_Sym *) sym_secptr + 1;
|
|
|
|
i < sym_count;
|
|
|
|
i++, x_symp++)
|
|
|
|
{
|
|
|
|
unsigned long strx;
|
|
|
|
char *name;
|
|
|
|
bfd_vma sym_value;
|
|
|
|
unsigned char sym_info;
|
|
|
|
unsigned int sym_shndx;
|
|
|
|
int isglobal;
|
|
|
|
enum minimal_symbol_type ms_type;
|
|
|
|
|
|
|
|
strx = bfd_h_get_32 (abfd, (bfd_byte *) x_symp->st_name);
|
|
|
|
if (strx >= str_secsize)
|
|
|
|
continue;
|
|
|
|
name = str_secptr + strx;
|
|
|
|
if (*name == '\0' || *name == '.')
|
|
|
|
continue;
|
|
|
|
|
|
|
|
sym_value = bfd_h_get_64 (abfd, (bfd_byte *) x_symp->st_value);
|
|
|
|
sym_info = bfd_h_get_8 (abfd, (bfd_byte *) x_symp->st_info);
|
|
|
|
sym_shndx = bfd_h_get_16 (abfd, (bfd_byte *) x_symp->st_shndx);
|
|
|
|
isglobal = (ELF_ST_BIND (sym_info) == STB_GLOBAL);
|
|
|
|
|
|
|
|
if (sym_shndx == SHN_UNDEF)
|
|
|
|
{
|
|
|
|
/* Handle undefined functions which are defined in a shared
|
|
|
|
library. */
|
|
|
|
if (ELF_ST_TYPE (sym_info) != STT_FUNC
|
|
|
|
|| ELF_ST_BIND (sym_info) != STB_GLOBAL)
|
|
|
|
continue;
|
|
|
|
|
|
|
|
ms_type = mst_solib_trampoline;
|
|
|
|
|
|
|
|
/* If sym_value is nonzero, it points to the shared library
|
|
|
|
trampoline entry, which is what we are looking for.
|
|
|
|
|
|
|
|
If sym_value is zero, then we have to get the GOT entry
|
|
|
|
for the symbol.
|
|
|
|
If the GOT entry is nonzero, it represents the quickstart
|
|
|
|
address of the function and we use that as the symbol value.
|
|
|
|
|
|
|
|
If the GOT entry is zero, the function address has to be resolved
|
|
|
|
by the runtime loader before the executable is started.
|
|
|
|
We are unable to find any meaningful address for these
|
|
|
|
functions in the executable file, so we skip them. */
|
|
|
|
if (sym_value == 0)
|
|
|
|
{
|
|
|
|
int got_entry_offset =
|
1999-07-07 20:19:36 +00:00
|
|
|
(i - dt_mips_gotsym + dt_mips_local_gotno) * got_entry_size;
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
|
|
if (got_entry_offset < 0 || got_entry_offset >= got_secsize)
|
|
|
|
continue;
|
|
|
|
sym_value =
|
|
|
|
bfd_h_get_64 (abfd,
|
|
|
|
(bfd_byte *) (got_secptr + got_entry_offset));
|
|
|
|
if (sym_value == 0)
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
/* Symbols defined in the executable itself. We only care about
|
|
|
|
them if this is a stripped executable, otherwise they have
|
|
|
|
been retrieved from the normal symbol table already. */
|
|
|
|
if (!stripped)
|
|
|
|
continue;
|
|
|
|
|
|
|
|
if (sym_shndx == SHN_MIPS_TEXT)
|
|
|
|
{
|
|
|
|
if (isglobal)
|
|
|
|
ms_type = mst_text;
|
|
|
|
else
|
|
|
|
ms_type = mst_file_text;
|
Elena Zannoni <ezannoni@kwikemart.cygnus.com>
* objfiles.h (SECT_OFF_DATA, SECT_OFF_TEXT, SECT_OFF_BSS,
SECT_OFF_RODATA): Define as functions of OBJFILE. Add
sect_index_text, sect_index_data, sect_index_rodata,
sect_index_bss to objfile structure.
* gdb-stabs.h (SECT_OFF_DATA, SECT_OFF_TEXT, SECT_OFF_BSS,
SECT_OFF_RODATA): Remove.
* objfiles.c (allocate_objfile): Initialize
sect_index_{text,data,bss,rodata} to -1, for error detection.
* symfile.c (default_symfile_offsets): Initialize
sect_index_{text,data,bss,rodata} from bfd information.
* xcoffread.c (xcoff_symfile_offsets): Ditto.
* somread.c (som_symfile_offsets): Initialize
sect_index_{text,data,bss,rodata}.
* coffread.c, dbxread.c, elfread.c, hp-psymtab-read.c,
hp-symtab-read.c, hpread.c, mdebugread.c, minsyms.c,
mipsread.c, objfiles.c, os9kread.c, pa64solib.c, partial-stab.h,
remote-os9k.c, remote-vx.c, remote.c, rs6000-nat.c, somsolib.c,
stabsread.c, symfile.c, xcoffread.c:
Update use of SECT_OFF_{TEXT,DATA,BSS,RODATA} to depend on the
current objfile.
* xcoffread.c: Add new field objfile to find_targ_sec_arg.
2000-05-04 16:52:34 +00:00
|
|
|
sym_value += ANOFFSET (section_offsets, SECT_OFF_TEXT (objfile));
|
1999-04-16 01:35:26 +00:00
|
|
|
}
|
|
|
|
else if (sym_shndx == SHN_MIPS_DATA)
|
|
|
|
{
|
|
|
|
if (isglobal)
|
|
|
|
ms_type = mst_data;
|
|
|
|
else
|
|
|
|
ms_type = mst_file_data;
|
Elena Zannoni <ezannoni@kwikemart.cygnus.com>
* objfiles.h (SECT_OFF_DATA, SECT_OFF_TEXT, SECT_OFF_BSS,
SECT_OFF_RODATA): Define as functions of OBJFILE. Add
sect_index_text, sect_index_data, sect_index_rodata,
sect_index_bss to objfile structure.
* gdb-stabs.h (SECT_OFF_DATA, SECT_OFF_TEXT, SECT_OFF_BSS,
SECT_OFF_RODATA): Remove.
* objfiles.c (allocate_objfile): Initialize
sect_index_{text,data,bss,rodata} to -1, for error detection.
* symfile.c (default_symfile_offsets): Initialize
sect_index_{text,data,bss,rodata} from bfd information.
* xcoffread.c (xcoff_symfile_offsets): Ditto.
* somread.c (som_symfile_offsets): Initialize
sect_index_{text,data,bss,rodata}.
* coffread.c, dbxread.c, elfread.c, hp-psymtab-read.c,
hp-symtab-read.c, hpread.c, mdebugread.c, minsyms.c,
mipsread.c, objfiles.c, os9kread.c, pa64solib.c, partial-stab.h,
remote-os9k.c, remote-vx.c, remote.c, rs6000-nat.c, somsolib.c,
stabsread.c, symfile.c, xcoffread.c:
Update use of SECT_OFF_{TEXT,DATA,BSS,RODATA} to depend on the
current objfile.
* xcoffread.c: Add new field objfile to find_targ_sec_arg.
2000-05-04 16:52:34 +00:00
|
|
|
sym_value += ANOFFSET (section_offsets, SECT_OFF_DATA (objfile));
|
1999-04-16 01:35:26 +00:00
|
|
|
}
|
|
|
|
else if (sym_shndx == SHN_MIPS_ACOMMON)
|
|
|
|
{
|
|
|
|
if (isglobal)
|
|
|
|
ms_type = mst_bss;
|
|
|
|
else
|
|
|
|
ms_type = mst_file_bss;
|
Elena Zannoni <ezannoni@kwikemart.cygnus.com>
* objfiles.h (SECT_OFF_DATA, SECT_OFF_TEXT, SECT_OFF_BSS,
SECT_OFF_RODATA): Define as functions of OBJFILE. Add
sect_index_text, sect_index_data, sect_index_rodata,
sect_index_bss to objfile structure.
* gdb-stabs.h (SECT_OFF_DATA, SECT_OFF_TEXT, SECT_OFF_BSS,
SECT_OFF_RODATA): Remove.
* objfiles.c (allocate_objfile): Initialize
sect_index_{text,data,bss,rodata} to -1, for error detection.
* symfile.c (default_symfile_offsets): Initialize
sect_index_{text,data,bss,rodata} from bfd information.
* xcoffread.c (xcoff_symfile_offsets): Ditto.
* somread.c (som_symfile_offsets): Initialize
sect_index_{text,data,bss,rodata}.
* coffread.c, dbxread.c, elfread.c, hp-psymtab-read.c,
hp-symtab-read.c, hpread.c, mdebugread.c, minsyms.c,
mipsread.c, objfiles.c, os9kread.c, pa64solib.c, partial-stab.h,
remote-os9k.c, remote-vx.c, remote.c, rs6000-nat.c, somsolib.c,
stabsread.c, symfile.c, xcoffread.c:
Update use of SECT_OFF_{TEXT,DATA,BSS,RODATA} to depend on the
current objfile.
* xcoffread.c: Add new field objfile to find_targ_sec_arg.
2000-05-04 16:52:34 +00:00
|
|
|
sym_value += ANOFFSET (section_offsets, SECT_OFF_BSS (objfile));
|
1999-04-16 01:35:26 +00:00
|
|
|
}
|
|
|
|
else if (sym_shndx == SHN_ABS)
|
|
|
|
{
|
|
|
|
ms_type = mst_abs;
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
prim_record_minimal_symbol (name, sym_value, ms_type, objfile);
|
|
|
|
}
|
2001-02-10 11:12:06 +00:00
|
|
|
|
|
|
|
do_cleanups (cleanups);
|
1999-04-16 01:35:26 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/* Initialization */
|
|
|
|
|
|
|
|
static struct sym_fns ecoff_sym_fns =
|
|
|
|
{
|
|
|
|
bfd_target_ecoff_flavour,
|
|
|
|
mipscoff_new_init, /* sym_new_init: init anything gbl to entire symtab */
|
|
|
|
mipscoff_symfile_init, /* sym_init: read initial info, setup for sym_read() */
|
|
|
|
mipscoff_symfile_read, /* sym_read: read a symbol file into symtab */
|
|
|
|
mipscoff_symfile_finish, /* sym_finish: finished with file, cleanup */
|
|
|
|
default_symfile_offsets, /* sym_offsets: dummy FIXME til implem sym reloc */
|
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NULL /* next: pointer to next struct sym_fns */
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};
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void
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2000-07-30 01:48:28 +00:00
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_initialize_mipsread (void)
|
1999-04-16 01:35:26 +00:00
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|
{
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|
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add_symtab_fns (&ecoff_sym_fns);
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|
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}
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