/* GDB routines for manipulating the minimal symbol tables.
- Copyright (C) 1992-2013 Free Software Foundation, Inc.
+ Copyright (C) 1992-2014 Free Software Foundation, Inc.
Contributed by Cygnus Support, using pieces from other GDB modules.
This file is part of GDB.
#include "defs.h"
#include <ctype.h>
-#include "gdb_string.h"
+#include <string.h>
#include "symtab.h"
#include "bfd.h"
#include "filenames.h"
}
}
-/* See minsyms.h. */
-
-struct objfile *
-msymbol_objfile (struct minimal_symbol *sym)
-{
- struct objfile *objf;
- struct minimal_symbol *tsym;
-
- unsigned int hash
- = msymbol_hash (SYMBOL_LINKAGE_NAME (sym)) % MINIMAL_SYMBOL_HASH_SIZE;
-
- for (objf = object_files; objf; objf = objf->next)
- for (tsym = objf->msymbol_hash[hash]; tsym; tsym = tsym->hash_next)
- if (tsym == sym)
- return objf;
-
- /* We should always be able to find the objfile ... */
- internal_error (__FILE__, __LINE__, _("failed internal consistency check"));
-}
-
-
/* Look through all the current minimal symbol tables and find the
first minimal symbol that matches NAME. If OBJF is non-NULL, limit
the search to that objfile. If SFILE is non-NULL, the only file-scope
Obviously, there must be distinct mangled names for each of these,
but the demangled names are all the same: S::S or S::~S. */
-struct minimal_symbol *
-lookup_minimal_symbol (const char *name, const char *sfile,
- struct objfile *objf)
+static struct bound_minimal_symbol
+lookup_minimal_symbol_internal (const char *name, const char *sfile,
+ struct objfile *objf)
{
struct objfile *objfile;
- struct minimal_symbol *msymbol;
- struct minimal_symbol *found_symbol = NULL;
- struct minimal_symbol *found_file_symbol = NULL;
- struct minimal_symbol *trampoline_symbol = NULL;
+ struct bound_minimal_symbol found_symbol = { NULL, NULL };
+ struct bound_minimal_symbol found_file_symbol = { NULL, NULL };
+ struct bound_minimal_symbol trampoline_symbol = { NULL, NULL };
unsigned int hash = msymbol_hash (name) % MINIMAL_SYMBOL_HASH_SIZE;
unsigned int dem_hash = msymbol_hash_iw (name) % MINIMAL_SYMBOL_HASH_SIZE;
}
for (objfile = object_files;
- objfile != NULL && found_symbol == NULL;
+ objfile != NULL && found_symbol.minsym == NULL;
objfile = objfile->next)
{
+ struct minimal_symbol *msymbol;
+
if (objf == NULL || objf == objfile
|| objf == objfile->separate_debug_objfile_backlink)
{
and the second over the demangled hash table. */
int pass;
- for (pass = 1; pass <= 2 && found_symbol == NULL; pass++)
+ for (pass = 1; pass <= 2 && found_symbol.minsym == NULL; pass++)
{
/* Select hash list according to pass. */
if (pass == 1)
else
msymbol = objfile->msymbol_demangled_hash[dem_hash];
- while (msymbol != NULL && found_symbol == NULL)
+ while (msymbol != NULL && found_symbol.minsym == NULL)
{
int match;
case mst_file_bss:
if (sfile == NULL
|| filename_cmp (msymbol->filename, sfile) == 0)
- found_file_symbol = msymbol;
+ {
+ found_file_symbol.minsym = msymbol;
+ found_file_symbol.objfile = objfile;
+ }
break;
case mst_solib_trampoline:
keep looking for the *real* symbol. If the
actual symbol is not found, then we'll use the
trampoline entry. */
- if (trampoline_symbol == NULL)
- trampoline_symbol = msymbol;
+ if (trampoline_symbol.minsym == NULL)
+ {
+ trampoline_symbol.minsym = msymbol;
+ trampoline_symbol.objfile = objfile;
+ }
break;
case mst_unknown:
default:
- found_symbol = msymbol;
+ found_symbol.minsym = msymbol;
+ found_symbol.objfile = objfile;
break;
}
}
xfree ((void *) modified_name);
/* External symbols are best. */
- if (found_symbol)
+ if (found_symbol.minsym != NULL)
return found_symbol;
/* File-local symbols are next best. */
- if (found_file_symbol)
+ if (found_file_symbol.minsym != NULL)
return found_file_symbol;
/* Symbols for shared library trampolines are next best. */
- if (trampoline_symbol)
- return trampoline_symbol;
+ return trampoline_symbol;
+}
- return NULL;
+/* See minsyms.h. */
+
+struct minimal_symbol *
+lookup_minimal_symbol (const char *name, const char *sfile,
+ struct objfile *objf)
+{
+ struct bound_minimal_symbol bms = lookup_minimal_symbol_internal (name,
+ sfile,
+ objf);
+
+ return bms.minsym;
+}
+
+/* See minsyms.h. */
+
+struct bound_minimal_symbol
+lookup_bound_minimal_symbol (const char *name)
+{
+ return lookup_minimal_symbol_internal (name, NULL, NULL);
}
/* See minsyms.h. */
/* Some types of debug info, such as COFF,
don't fill the bfd_section member, so don't
throw away symbols on those platforms. */
- && SYMBOL_OBJ_SECTION (&msymbol[hi]) != NULL
+ && SYMBOL_OBJ_SECTION (objfile, &msymbol[hi]) != NULL
&& (!matching_obj_sections
- (SYMBOL_OBJ_SECTION (&msymbol[hi]), section)))
+ (SYMBOL_OBJ_SECTION (objfile, &msymbol[hi]),
+ section)))
{
hi--;
continue;
== MSYMBOL_SIZE (&msymbol[hi - 1]))
&& (SYMBOL_VALUE_ADDRESS (&msymbol[hi])
== SYMBOL_VALUE_ADDRESS (&msymbol[hi - 1]))
- && (SYMBOL_OBJ_SECTION (&msymbol[hi])
- == SYMBOL_OBJ_SECTION (&msymbol[hi - 1])))
+ && (SYMBOL_OBJ_SECTION (objfile, &msymbol[hi])
+ == SYMBOL_OBJ_SECTION (objfile, &msymbol[hi - 1])))
{
hi--;
continue;
/* Return leading symbol character for a BFD. If BFD is NULL,
return the leading symbol character from the main objfile. */
-static int get_symbol_leading_char (bfd *);
-
static int
get_symbol_leading_char (bfd *abfd)
{
if (msym_bunch_index == BUNCH_SIZE)
{
- new = XCALLOC (1, struct msym_bunch);
+ new = XCNEW (struct msym_bunch);
msym_bunch_index = 0;
new->next = msym_bunch;
msym_bunch = new;
SYMBOL_VALUE_ADDRESS (msymbol) = address;
SYMBOL_SECTION (msymbol) = section;
- SYMBOL_OBJ_SECTION (msymbol) = NULL;
MSYMBOL_TYPE (msymbol) = ms_type;
MSYMBOL_TARGET_FLAG_1 (msymbol) = 0;
{
fprintf_unfiltered (gdb_stdlog,
"Installing %d minimal symbols of objfile %s.\n",
- msym_count, objfile->name);
+ msym_count, objfile_name (objfile));
}
/* Allocate enough space in the obstack, into which we will gather the