/* Read dbx symbol tables and convert to internal format, for GDB.
Copyright 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995,
- 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003.
+ 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004.
Free Software Foundation, Inc.
This file is part of GDB.
#include "defs.h"
#include "gdb_string.h"
-#if defined(USG) || defined(__CYGNUSCLIB__)
+#if defined(__CYGNUSCLIB__)
#include <sys/types.h>
#include <fcntl.h>
#endif
#include "target.h"
#include "gdbcore.h" /* for bfd stuff */
#include "libaout.h" /* FIXME Secret internal BFD stuff for a.out */
-#include "symfile.h"
#include "objfiles.h"
#include "buildsym.h"
#include "stabsread.h"
#include "gdb-stabs.h"
#include "demangle.h"
-#include "language.h" /* Needed for local_hex_string */
#include "complaints.h"
#include "cp-abi.h"
#include "gdb_assert.h"
/* Allocate struct to keep track of the symfile */
objfile->sym_stab_info = (struct dbx_symfile_info *)
- xmmalloc (objfile->md, sizeof (struct dbx_symfile_info));
+ xmalloc (sizeof (struct dbx_symfile_info));
memset (objfile->sym_stab_info, 0, sizeof (struct dbx_symfile_info));
DBX_TEXT_SECTION (objfile) = bfd_get_section_by_name (sym_bfd, ".text");
DBX_SYMCOUNT (objfile) = bfd_get_symcount (sym_bfd);
DBX_SYMTAB_OFFSET (objfile) = SYMBOL_TABLE_OFFSET;
- /* Read the string table and stash it away in the psymbol_obstack. It is
- only needed as long as we need to expand psymbols into full symbols,
- so when we blow away the psymbol the string table goes away as well.
+ /* Read the string table and stash it away in the objfile_obstack.
+ When we blow away the objfile the string table goes away as well.
Note that gdb used to use the results of attempting to malloc the
string table, based on the size it read, as a form of sanity check
for botched byte swapping, on the theory that a byte swapped string
table size would be so totally bogus that the malloc would fail. Now
- that we put in on the psymbol_obstack, we can't do this since gdb gets
+ that we put in on the objfile_obstack, we can't do this since gdb gets
a fatal error (out of virtual memory) if the size is bogus. We can
however at least check to see if the size is less than the size of
the size field itself, or larger than the size of the entire file.
DBX_STRINGTAB_SIZE (objfile));
DBX_STRINGTAB (objfile) =
- (char *) obstack_alloc (&objfile->psymbol_obstack,
+ (char *) obstack_alloc (&objfile->objfile_obstack,
DBX_STRINGTAB_SIZE (objfile));
OBJSTAT (objfile, sz_strtab += DBX_STRINGTAB_SIZE (objfile));
}
xfree (hfiles);
}
- xmfree (objfile->md, objfile->sym_stab_info);
+ xfree (objfile->sym_stab_info);
}
free_header_files ();
}
{
bincls_allocated = number;
next_bincl = bincl_list = (struct header_file_location *)
- xmmalloc (objfile->md, bincls_allocated * sizeof (struct header_file_location));
+ xmalloc (bincls_allocated * sizeof (struct header_file_location));
}
/* Add a bincl to the list. */
int offset = next_bincl - bincl_list;
bincls_allocated *= 2;
bincl_list = (struct header_file_location *)
- xmrealloc (pst->objfile->md, (char *) bincl_list,
- bincls_allocated * sizeof (struct header_file_location));
+ xrealloc ((char *) bincl_list,
+ bincls_allocated * sizeof (struct header_file_location));
next_bincl = bincl_list + offset;
}
next_bincl->pst = pst;
static void
free_bincl_list (struct objfile *objfile)
{
- xmfree (objfile->md, bincl_list);
+ xfree (bincl_list);
bincls_allocated = 0;
}
|| (namestring[(nsl = strlen (namestring)) - 1] == 'o'
&& namestring[nsl - 2] == '.'))
{
- if (objfile->ei.entry_point < nlist.n_value &&
- objfile->ei.entry_point >= last_o_file_start)
- {
- objfile->ei.deprecated_entry_file_lowpc = last_o_file_start;
- objfile->ei.deprecated_entry_file_highpc = nlist.n_value;
- }
if (past_first_source_file && pst
/* The gould NP1 uses low values for .o and -l symbols
which are not the address. */
static int prev_so_symnum = -10;
static int first_so_symnum;
char *p;
+ static char *dirname_nso;
int prev_textlow_not_set;
valu = nlist.n_value + ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile));
p = strrchr (namestring, '/');
if (p && *(p + 1) == '\000')
- continue; /* Simply ignore directory name SOs */
+ {
+ /* Save the directory name SOs locally, then save it into
+ the psymtab when it's created below. */
+ dirname_nso = namestring;
+ continue;
+ }
/* Some other compilers (C++ ones in particular) emit useless
SOs for non-existant .c files. We ignore all subsequent SOs that
immediately follow the first. */
if (!pst)
+ {
pst = start_psymtab (objfile,
namestring, valu,
first_so_symnum * symbol_size,
objfile->global_psymbols.next,
objfile->static_psymbols.next);
+ pst->dirname = dirname_nso;
+ dirname_nso = NULL;
+ }
continue;
}
default:
/* If we haven't found it yet, ignore it. It's probably some
new type we don't know about yet. */
- unknown_symtype_complaint (local_hex_string (nlist.n_type));
+ unknown_symtype_complaint (hex_string (nlist.n_type));
continue;
}
}
/* If there's stuff to be cleaned up, clean it up. */
- if (DBX_SYMCOUNT (objfile) > 0 /* We have some syms */
- /*FIXME, does this have a bug at start address 0? */
- && last_o_file_start
- && objfile->ei.entry_point < nlist.n_value
- && objfile->ei.entry_point >= last_o_file_start)
- {
- objfile->ei.deprecated_entry_file_lowpc = last_o_file_start;
- objfile->ei.deprecated_entry_file_highpc = nlist.n_value;
- }
-
if (pst)
{
/* Don't set pst->texthigh lower than it already is. */
filename, textlow, global_syms, static_syms);
result->read_symtab_private = (char *)
- obstack_alloc (&objfile->psymbol_obstack, sizeof (struct symloc));
+ obstack_alloc (&objfile->objfile_obstack, sizeof (struct symloc));
LDSYMOFF (result) = ldsymoff;
result->read_symtab = dbx_psymtab_to_symtab;
SYMBOL_SIZE (result) = symbol_size;
if (number_dependencies)
{
pst->dependencies = (struct partial_symtab **)
- obstack_alloc (&objfile->psymbol_obstack,
+ obstack_alloc (&objfile->objfile_obstack,
number_dependencies * sizeof (struct partial_symtab *));
memcpy (pst->dependencies, dependency_list,
number_dependencies * sizeof (struct partial_symtab *));
/* Copy the sesction_offsets array from the main psymtab. */
subpst->section_offsets = pst->section_offsets;
subpst->read_symtab_private =
- (char *) obstack_alloc (&objfile->psymbol_obstack,
+ (char *) obstack_alloc (&objfile->objfile_obstack,
sizeof (struct symloc));
LDSYMOFF (subpst) =
LDSYMLEN (subpst) =
/* We could save slight bits of space by only making one of these,
shared by the entire set of include files. FIXME-someday. */
subpst->dependencies = (struct partial_symtab **)
- obstack_alloc (&objfile->psymbol_obstack,
+ obstack_alloc (&objfile->objfile_obstack,
sizeof (struct partial_symtab *));
subpst->dependencies[0] = pst;
subpst->number_of_dependencies = 1;
struct section_offsets *section_offsets,
struct objfile *objfile)
{
-#ifdef SUN_FIXED_LBRAC_BUG
- /* If SUN_FIXED_LBRAC_BUG is defined, then it tells us whether we need
- to correct the address of N_LBRAC's. If it is not defined, then
- we never need to correct the addresses. */
-
- /* This records the last pc address we've seen. We depend on there being
- an SLINE or FUN or SO before the first LBRAC, since the variable does
- not get reset in between reads of different symbol files. */
- static CORE_ADDR last_pc_address;
-#endif
-
struct context_stack *new;
/* This remembers the address of the start of a function. It is used
because in Solaris 2, N_LBRAC, N_RBRAC, and N_SLINE entries are
N_SO, the linker did not relocate them (sigh). */
valu += last_source_start_addr;
-#ifdef SUN_FIXED_LBRAC_BUG
- if (!SUN_FIXED_LBRAC_BUG && valu < last_pc_address)
- {
- /* Patch current LBRAC pc value to match last handy pc value */
- complaint (&symfile_complaints, "bad block start address patched");
- valu = last_pc_address;
- }
-#endif
new = push_context (desc, valu);
break;
n_opt_found = 0;
-#ifdef SUN_FIXED_LBRAC_BUG
- last_pc_address = valu; /* Save for SunOS bug circumcision */
-#endif
-
-#ifdef PCC_SOL_BROKEN
- /* pcc bug, occasionally puts out SO for SOL. */
- if (context_stack_depth > 0)
- {
- start_subfile (name, NULL);
- break;
- }
-#endif
if (last_source_file)
{
/* Check if previous symbol was also an N_SO (with some
/* Relocate for dynamic loading and for ELF acc fn-relative syms. */
valu += function_start_offset;
-#ifdef SUN_FIXED_LBRAC_BUG
- last_pc_address = valu; /* Save for SunOS bug circumcision */
-#endif
/* If this is the first SLINE note in the function, record it at
the start of the function instead of at the listed location. */
if (within_function && sline_found_in_function == 0)
case N_NBBSS:
case N_NBSTS:
case N_NBLCS:
- unknown_symtype_complaint (local_hex_string (type));
+ unknown_symtype_complaint (hex_string (type));
/* FALLTHROUGH */
/* The following symbol types don't need the address field relocated,
}
#endif
-#ifdef SUN_FIXED_LBRAC_BUG
- /* The Sun acc compiler, under SunOS4, puts out
- functions with N_GSYM or N_STSYM. The problem is
- that the address of the symbol is no good (for N_GSYM
- it doesn't even attept an address; for N_STSYM it
- puts out an address but then it gets relocated
- relative to the data segment, not the text segment).
- Currently we can't fix this up later as we do for
- some types of symbol in scan_file_globals.
- Fortunately we do have a way of finding the address -
- we know that the value in last_pc_address is either
- the one we want (if we're dealing with the first
- function in an object file), or somewhere in the
- previous function. This means that we can use the
- minimal symbol table to get the address. */
-
- /* Starting with release 3.0, the Sun acc compiler,
- under SunOS4, puts out functions with N_FUN and a value
- of zero. This gets relocated to the start of the text
- segment of the module, which is no good either.
- Under SunOS4 we can deal with this as N_SLINE and N_SO
- entries contain valid absolute addresses.
- Release 3.0 acc also puts out N_OPT entries, which makes
- it possible to discern acc from cc or gcc. */
-
- if (type == N_GSYM || type == N_STSYM
- || (type == N_FUN
- && n_opt_found && !block_address_function_relative))
- {
- struct minimal_symbol *m;
- int l = colon_pos - name;
-
- m = lookup_minimal_symbol_by_pc (last_pc_address);
- if (m && strncmp (DEPRECATED_SYMBOL_NAME (m), name, l) == 0
- && DEPRECATED_SYMBOL_NAME (m)[l] == '\0')
- /* last_pc_address was in this function */
- valu = SYMBOL_VALUE (m);
- else if (m && DEPRECATED_SYMBOL_NAME (m + 1)
- && strncmp (DEPRECATED_SYMBOL_NAME (m + 1), name, l) == 0
- && DEPRECATED_SYMBOL_NAME (m + 1)[l] == '\0')
- /* last_pc_address was in last function */
- valu = SYMBOL_VALUE (m + 1);
- else
- /* Not found - use last_pc_address (for finish_block) */
- valu = last_pc_address;
- }
-
- last_pc_address = valu; /* Save for SunOS bug circumcision */
-#endif
-
if (block_address_function_relative)
/* For Solaris 2.0 compilers, the block addresses and
N_SLINE's are relative to the start of the
if (stabstrsize > bfd_get_size (sym_bfd))
error ("ridiculous string table size: %d bytes", stabstrsize);
DBX_STRINGTAB (objfile) = (char *)
- obstack_alloc (&objfile->psymbol_obstack, stabstrsize + 1);
+ obstack_alloc (&objfile->objfile_obstack, stabstrsize + 1);
OBJSTAT (objfile, sz_strtab += stabstrsize + 1);
/* Now read in the string table in one big gulp. */
}
\f
/* Scan and build partial symbols for an ELF symbol file.
- This ELF file has already been processed to get its minimal symbols,
- and any DWARF symbols that were in it.
+ This ELF file has already been processed to get its minimal symbols.
This routine is the equivalent of dbx_symfile_init and dbx_symfile_read
rolled into one.
if (stabstrsize > bfd_get_size (sym_bfd))
error ("ridiculous string table size: %d bytes", stabstrsize);
DBX_STRINGTAB (objfile) = (char *)
- obstack_alloc (&objfile->psymbol_obstack, stabstrsize + 1);
+ obstack_alloc (&objfile->objfile_obstack, stabstrsize + 1);
OBJSTAT (objfile, sz_strtab += stabstrsize + 1);
/* Now read in the string table in one big gulp. */
if (DBX_STRINGTAB_SIZE (objfile) > bfd_get_size (sym_bfd))
error ("ridiculous string table size: %d bytes", DBX_STRINGTAB_SIZE (objfile));
DBX_STRINGTAB (objfile) = (char *)
- obstack_alloc (&objfile->psymbol_obstack, DBX_STRINGTAB_SIZE (objfile) + 1);
+ obstack_alloc (&objfile->objfile_obstack, DBX_STRINGTAB_SIZE (objfile) + 1);
OBJSTAT (objfile, sz_strtab += DBX_STRINGTAB_SIZE (objfile) + 1);
/* Now read in the string table in one big gulp. */
projects / binutils-gdb.git / blobdiff