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using the new mmalloc package.
This commit is contained in:
Fred Fish
1992-03-15 01:09:14 +00:00
parent 0750528ab6
commit 318bf84ffe
28 changed files with 1996 additions and 931 deletions
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151
gdb/symfile.c
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@@ -18,7 +18,6 @@ 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., 675 Mass Ave, Cambridge, MA 02139, USA. */
#include <stdio.h>
#include "defs.h"
#include "symtab.h"
#include "gdbtypes.h"
@@ -29,7 +28,6 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
#include "symfile.h"
#include "gdbcmd.h"
#include "breakpoint.h"
#include "state.h"
#include <obstack.h>
#include <assert.h>
@@ -43,6 +41,7 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
CORE_ADDR entry_point; /* Where execution starts in symfile */
struct sym_fns *symtab_fns = NULL; /* List of all available sym_fns. */
int readnow_symbol_files; /* Read full symbols immediately */
/* External variables and functions referenced. */
@@ -59,9 +58,6 @@ load_command PARAMS ((char *, int));
static void
add_symbol_file_command PARAMS ((char *, int));
static struct objfile *
symbol_file_add_digested PARAMS ((sfd *, int));
static void
cashier_psymtab PARAMS ((struct partial_symtab *));
@@ -428,48 +424,10 @@ syms_from_objfile (objfile, addr, mainline, verbo)
/* We're done reading the symbol file; finish off complaints. */
clear_complaints(0, verbo);
/* Setup the breakpoint(s) for trapping longjmp(), as it may have been
defined by this new file. */
create_longjmp_breakpoint();
}
/* Reload a predigested symbol file from a dumped state file.
FIXME: For now, we load only the first dumped objfile that we
find, for two reasons. (1) Our custom malloc and mmap'd sbrk
implementation only supports one mmap'd objfile at a time, so we
can only create state files with one dumped objfile in them and
would have no way to deal with multiple dumped objfiles when reading
the state file back in even if we could create them. (2) We currently
have no way to select a specific objfile to load from a state file
containing a dump of more than one objfile, so we just select the
first one we encounter. */
static struct objfile *
symbol_file_add_digested (asfd, from_tty)
sfd *asfd;
int from_tty;
{
struct objfile *objfile;
bfd *sym_bfd;
/* First locate and map in the dumped symbol information */
objfile = objfile_from_statefile (asfd);
/* Push this file onto the head of the linked list of other such files. */
objfile -> next = object_files;
object_files = objfile;
#if 0 /* FIXME: Things to deal with... */
objfile -> obfd = abfd;
objfile -> mtime = bfd_get_mtime (abfd);
obstack_full_begin (&objfile -> psymbol_obstack, 0, 0, xmalloc, free);
obstack_full_begin (&objfile -> symbol_obstack, 0, 0, xmalloc, free);
obstack_full_begin (&objfile -> type_obstack, 0, 0, xmalloc, free);
#endif
/* Fixup all the breakpoints that may have been redefined by this
symbol file. */
breakpoint_re_set ();
}
/* Process a symbol file, as either the main file or as a dynamically
@@ -486,17 +444,17 @@ symbol_file_add_digested (asfd, from_tty)
Upon failure, jumps back to command level (never returns). */
struct objfile *
symbol_file_add (name, from_tty, addr, mainline, dumpable)
symbol_file_add (name, from_tty, addr, mainline, mapped)
char *name;
int from_tty;
CORE_ADDR addr;
int mainline;
int dumpable;
int mapped;
{
struct objfile *objfile;
bfd *sym_bfd;
objfile = symfile_open (name, dumpable);
objfile = symfile_open (name, mapped);
sym_bfd = objfile->obfd;
/* There is a distinction between having no symbol table
@@ -510,25 +468,39 @@ symbol_file_add (name, from_tty, addr, mainline, dumpable)
error ("%s has no symbol-table", name);
}
if ((have_full_symbols () || have_partial_symbols ())
&& mainline
&& from_tty
&& !query ("Load new symbol table from \"%s\"? ", name))
error ("Not confirmed.");
/* If the objfile uses a mapped symbol file, and we have a psymtab for
it, then skip reading any symbols at this time. */
if (from_tty || info_verbose)
if ((objfile -> psymtabs != NULL) && (objfile -> flags & OBJF_MAPPED))
{
printf_filtered ("Reading symbols from %s...", name);
wrap_here ("");
fflush (stdout);
if (from_tty || info_verbose)
{
printf_filtered ("Mapped symbols for %s.\n", name);
fflush (stdout);
}
}
syms_from_objfile (objfile, addr, mainline, from_tty);
if (from_tty || info_verbose)
else
{
printf_filtered ("done.\n");
fflush (stdout);
if ((have_full_symbols () || have_partial_symbols ())
&& mainline
&& from_tty
&& !query ("Load new symbol table from \"%s\"? ", name))
error ("Not confirmed.");
if (from_tty || info_verbose)
{
printf_filtered ("Reading symbols from %s...", name);
wrap_here ("");
fflush (stdout);
}
syms_from_objfile (objfile, addr, mainline, from_tty);
if (from_tty || info_verbose)
{
printf_filtered ("done.\n");
fflush (stdout);
}
}
return (objfile);
}
@@ -546,8 +518,7 @@ symbol_file_command (args, from_tty)
struct cleanup *cleanups;
struct objfile *objfile;
struct partial_symtab *psymtab;
sfd *sym_sfd;
int dumpable = 0;
int mapped = 0;
int readnow = 0;
dont_repeat ();
@@ -575,16 +546,16 @@ symbol_file_command (args, from_tty)
{
if ((argv = buildargv (args)) == NULL)
{
fatal ("virtual memory exhausted.", 0);
nomem (0);
}
cleanups = make_cleanup (freeargv, (char *) argv);
name = *argv;
while (*++argv != NULL)
{
if (!strcmp (*argv, "dumpable"))
if (!strcmp (*argv, "mapped"))
{
dumpable = 1;
mapped = 1;
}
else if (!strcmp (*argv, "readnow"))
{
@@ -594,25 +565,19 @@ symbol_file_command (args, from_tty)
if (name != NULL)
{
if ((sym_sfd = sfd_fopen (name, "r")) != NULL)
/* Getting new symbols may change our opinion about what is
frameless. */
reinit_frame_cache ();
objfile = symbol_file_add (name, from_tty, (CORE_ADDR)0, 1,
mapped);
readnow |= readnow_symbol_files;
if (readnow)
{
(void) symbol_file_add_digested (sym_sfd, from_tty);
}
else
{
/* Getting new symbols may change our opinion about what is
frameless. */
reinit_frame_cache ();
objfile = symbol_file_add (name, from_tty, (CORE_ADDR)0, 1,
dumpable);
if (readnow)
for (psymtab = objfile -> psymtabs;
psymtab != NULL;
psymtab = psymtab -> next)
{
for (psymtab = objfile -> psymtabs;
psymtab != NULL;
psymtab = psymtab -> next)
{
(void) psymtab_to_symtab (psymtab);
}
(void) psymtab_to_symtab (psymtab);
}
}
}
@@ -626,9 +591,9 @@ symbol_file_command (args, from_tty)
In case of trouble, error() is called. */
static struct objfile *
symfile_open (name, dumpable)
symfile_open (name, mapped)
char *name;
int dumpable;
int mapped;
{
bfd *sym_bfd;
int desc;
@@ -662,7 +627,7 @@ symfile_open (name, dumpable)
name, bfd_errmsg (bfd_error));
}
objfile = allocate_objfile (sym_bfd, name, dumpable);
objfile = allocate_objfile (sym_bfd, name, mapped);
return objfile;
}
@@ -778,6 +743,14 @@ reread_symbols ()
the_big_top:
for (objfile = object_files; objfile; objfile = objfile->next) {
if (objfile->obfd) {
#ifdef IBM6000
/* If this object is from a shared library, then you should
stat on the library name, not member name. */
if (objfile->obfd->my_archive)
res = stat (objfile->obfd->my_archive->filename, &new_statbuf);
else
#endif
res = stat (objfile->name, &new_statbuf);
if (res != 0) {
/* FIXME, should use print_sys_errmsg but it's not filtered. */