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* solib-dsbt.c (bfd_lookup_symbol): Removed.
	(cmp_name): New.
	(enable_break2): Update caller.
	* solib-frv.c (bfd_lookup_symbol): Removed.
	(cmp_name): New.
	(enable_break2): Update caller.
	* solib-pa64.c (bfd_lookup_symbol): Removed.
	(cmp_name): New.
	* solib-svr4.c (bfd_lookup_symbol): Removed.
	(cmp_name_and_sec_flags): New.
	(enable_break): Update caller.
	* solib.c (gdb_bfd_lookup_symbol_from_symtab): New.
	(gdb_bfd_lookup_symbol_from_dyn_symtab): New.
	(gdb_bfd_lookup_symbol): New.
	* solib.h: Functions declarations.
This commit is contained in:
Yao Qi
2011-08-30 02:48:05 +00:00
parent 83d1a36ae4
commit cb457ae284
7 changed files with 162 additions and 266 deletions
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96
gdb/solib.c
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@ -1336,6 +1336,102 @@ solib_global_lookup (const struct objfile *objfile,
return NULL;
}
/* Lookup the value for a specific symbol from dynamic symbol table. Look
up symbol from ABFD. MATCH_SYM is a callback function to determine
whether to pick up a symbol. DATA is the input of this callback
function. Return NULL if symbol is not found. */
CORE_ADDR
gdb_bfd_lookup_symbol_from_symtab (bfd *abfd,
int (*match_sym) (asymbol *, void *),
void *data)
{
long storage_needed = bfd_get_symtab_upper_bound (abfd);
CORE_ADDR symaddr = 0;
if (storage_needed > 0)
{
unsigned int i;
asymbol **symbol_table = (asymbol **) xmalloc (storage_needed);
struct cleanup *back_to = make_cleanup (xfree, symbol_table);
unsigned int number_of_symbols =
bfd_canonicalize_symtab (abfd, symbol_table);
for (i = 0; i < number_of_symbols; i++)
{
asymbol *sym = *symbol_table++;
if (match_sym (sym, data))
{
/* BFD symbols are section relative. */
symaddr = sym->value + sym->section->vma;
break;
}
}
do_cleanups (back_to);
}
return symaddr;
}
/* Lookup the value for a specific symbol from symbol table. Look up symbol
from ABFD. MATCH_SYM is a callback function to determine whether to pick
up a symbol. DATA is the input of this callback function. Return NULL
if symbol is not found. */
static CORE_ADDR
bfd_lookup_symbol_from_dyn_symtab (bfd *abfd,
int (*match_sym) (asymbol *, void *),
void *data)
{
long storage_needed = bfd_get_dynamic_symtab_upper_bound (abfd);
CORE_ADDR symaddr = 0;
if (storage_needed > 0)
{
unsigned int i;
asymbol **symbol_table = (asymbol **) xmalloc (storage_needed);
struct cleanup *back_to = make_cleanup (xfree, symbol_table);
unsigned int number_of_symbols =
bfd_canonicalize_dynamic_symtab (abfd, symbol_table);
for (i = 0; i < number_of_symbols; i++)
{
asymbol *sym = *symbol_table++;
if (match_sym (sym, data))
{
/* BFD symbols are section relative. */
symaddr = sym->value + sym->section->vma;
break;
}
}
do_cleanups (back_to);
}
return symaddr;
}
/* Lookup the value for a specific symbol from symbol table and dynamic
symbol table. Look up symbol from ABFD. MATCH_SYM is a callback
function to determine whether to pick up a symbol. DATA is the
input of this callback function. Return NULL if symbol is not
found. */
CORE_ADDR
gdb_bfd_lookup_symbol (bfd *abfd,
int (*match_sym) (asymbol *, void *),
void *data)
{
CORE_ADDR symaddr = gdb_bfd_lookup_symbol_from_symtab (abfd, match_sym, data);
/* On FreeBSD, the dynamic linker is stripped by default. So we'll
have to check the dynamic string table too. */
if (symaddr == 0)
symaddr = bfd_lookup_symbol_from_dyn_symtab (abfd, match_sym, data);
return symaddr;
}
extern initialize_file_ftype _initialize_solib; /* -Wmissing-prototypes */