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* alphanbsd-tdep.c (alphanbsd_sigtramp_offset): Don't make

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assumptions about the host's byte order.
This commit is contained in:
Jason Thorpe 2002-05-22 04:30:46 +00:00
parent afbe61cf19
commit cfef91e424
2 changed files with 16 additions and 11 deletions
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5
gdb/ChangeLog
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@ -1,3 +1,8 @@
2002-05-22 Jason Thorpe <thorpej@wasabisystems.com>
* alphanbsd-tdep.c (alphanbsd_sigtramp_offset): Don't make
assumptions about the host's byte order.
2002-05-22 Jason Thorpe <thorpej@wasabisystems.com>
* Makefile.in (alphanbsd-tdep.o, shnbsd-tdep.o): Add solib-svr4.h

22
gdb/alphanbsd-tdep.c
View file

@ -135,29 +135,29 @@ static struct core_fns alphanbsd_elfcore_fns =
sequence and can then check whether we really are executing in the
signal trampoline. If not, -1 is returned, otherwise the offset from the
start of the return sequence is returned. */
static const unsigned int sigtramp_retcode[] =
static const unsigned char sigtramp_retcode[] =
{
0xa61e0000, /* ldq a0, 0(sp) */
0x23de0010, /* lda sp, 16(sp) */
0x201f0127, /* lda v0, 295(zero) */
0x00000083, /* call_pal callsys */
0x00, 0x00, 0x1e, 0xa6, /* ldq a0, 0(sp) */
0x10, 0x00, 0xde, 0x23, /* lda sp, 16(sp) */
0x27, 0x01, 0x1f, 0x20, /* lda v0, 295(zero) */
0x83, 0x00, 0x00, 0x00, /* call_pal callsys */
};
#define RETCODE_NWORDS \
(sizeof (sigtramp_retcode) / sizeof (sigtramp_retcode[0]))
#define RETCODE_NWORDS 4
#define RETCODE_SIZE (RETCODE_NWORDS * 4)
LONGEST
alphanbsd_sigtramp_offset (CORE_ADDR pc)
{
unsigned int ret[4], w;
unsigned char ret[RETCODE_SIZE], w[4];
LONGEST off;
int i;
if (read_memory_nobpt (pc, (char *) &w, 4) != 0)
if (read_memory_nobpt (pc, (char *) w, 4) != 0)
return -1;
for (i = 0; i < RETCODE_NWORDS; i++)
{
if (w == sigtramp_retcode[i])
if (memcmp (w, sigtramp_retcode + (i * 4), 4) == 0)
break;
}
if (i == RETCODE_NWORDS)
@ -169,7 +169,7 @@ alphanbsd_sigtramp_offset (CORE_ADDR pc)
if (read_memory_nobpt (pc, (char *) ret, sizeof (ret)) != 0)
return -1;
if (memcmp (ret, sigtramp_retcode, sizeof (sigtramp_retcode)) == 0)
if (memcmp (ret, sigtramp_retcode, RETCODE_SIZE) == 0)
return off;
return -1;