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Teach sparc solaris to next over shared library functions.

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* solib.[hc] (find_pc_section_from_so_list): new function and
  prototype.
* sparc-tdep.c (in_solib_trampoline): new function.
* symfile.[hc] (find_pc_section): new function and prototypes.
* target.[hc] (find_pc_section_from_targets): new function and
  prototypes.
* config/sparc/tm-sun4sol2.h (IN_SOLIB_TRAMPOLINE): redefine to
  in_solib_trampoline.
This commit is contained in:
K. Richard Pixley
1993-03-31 00:29:22 +00:00
parent deae7611a3
commit 2093fe6840
5 changed files with 94 additions and 85 deletions
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48
gdb/sparc-tdep.c
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@@ -1,5 +1,5 @@
/* Target-dependent code for the SPARC for GDB, the GNU debugger.
Copyright 1986, 1987, 1989, 1991, 1992 Free Software Foundation, Inc.
Copyright 1986, 1987, 1989, 1991, 1992, 1993 Free Software Foundation, Inc.
This file is part of GDB.
@@ -23,11 +23,10 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
#include "obstack.h"
#include "target.h"
#include "ieee-float.h"
#include "symfile.h" /* for find_pc_section */
#ifdef USE_PROC_FS
#include <sys/procfs.h>
#else
#include <sys/ptrace.h>
#endif
#include "gdbcore.h"
@@ -191,15 +190,21 @@ frame_saved_pc (frame)
* difficulty.
*/
FRAME
setup_arbitrary_frame (frame, stack)
FRAME_ADDR frame, stack;
setup_arbitrary_frame (argc, argv)
int argc;
FRAME_ADDR *argv;
{
FRAME fid = create_new_frame (frame, 0);
FRAME fid;
if (argc != 2)
error ("Sparc frame specifications require two arguments: fp and sp");
fid = create_new_frame (argv[0], 0);
if (!fid)
fatal ("internal: create_new_frame returned invalid frame id");
fid->bottom = stack;
fid->bottom = argv[1];
fid->pc = FRAME_SAVED_PC (fid);
return fid;
}
@@ -228,7 +233,7 @@ setup_arbitrary_frame (frame, stack)
* original contents of g1. A * indicates that the actual value of
* the instruction is modified below.
*/
static int save_insn_opcodes[] = {
static unsigned int save_insn_opcodes[] = {
0x03000000, 0x82007ee0, 0x9de38001, 0x03000000,
0x82007ee0, 0x91d02001, 0x01000000 };
@@ -279,7 +284,8 @@ do_save_insn (size)
t %g0,1
sethi %hi(0),%g0 */
static int restore_insn_opcodes[] = { 0x81e80000, 0x91d02001, 0x01000000 };
static unsigned int restore_insn_opcodes[] = {
0x81e80000, 0x91d02001, 0x01000000 };
static void
do_restore_insn ()
@@ -831,3 +837,27 @@ get_longjmp_target(pc)
return 1;
}
#endif /* GET_LONGJMP_TARGET */
/* So far used only for sparc solaris. In sparc solaris, we recognize
a trampoline by it's section name. That is, if the pc is in a
section named ".plt" then we are in a trampline.
Section and offset tracking belongs in objfiles. FIXME. */
int
in_solib_trampoline(pc, name)
CORE_ADDR pc;
char *name;
{
struct section_table *s;
int retval = 0;
s = find_pc_section(pc);
retval = (s != NULL
&& s->sec_ptr != NULL
&& s->sec_ptr->name != NULL
&& STREQ (s->sec_ptr->name, ".plt"));
return(retval);
}