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Include <libunwind-ia64.h> instead of <libunwind.h> (this program is slightly

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ia64-specific).
(sighandler): Rename rp to ip.
(doit): Declare argument as volatile pointer.

(Logical change 1.18)
This commit is contained in:
mostang.com!davidm 2002-04-25 06:47:29 +00:00
parent 934d3b52b0
commit e324c4c115
1 changed files with 13 additions and 11 deletions
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24
tests/sig.c
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@ -20,7 +20,7 @@ GNU General Public License for more details. */
#include <signal.h> #include <signal.h>
#include <stdio.h> #include <stdio.h>
#include <unwind.h> #include <libunwind-ia64.h>
#define panic(args...) \ #define panic(args...) \
{ fprintf (stderr, args); exit (-1); } { fprintf (stderr, args); exit (-1); }
@ -29,14 +29,13 @@ static void
sighandler (int signal) sighandler (int signal)
{ {
unw_cursor_t cursor, cursor2; unw_cursor_t cursor, cursor2;
unw_word_t rp; unw_word_t ip;
unw_context_t uc; unw_context_t uc;
printf ("caught signal %d\n", signal); printf ("caught signal %d\n", signal);
unw_getcontext(&uc); unw_getcontext (&uc);
if (unw_init_local (&cursor, &uc) < 0)
if (unw_init (&cursor, &uc) < 0)
panic ("unw_init() failed!\n"); panic ("unw_init() failed!\n");
/* get cursor for caller of sighandler: */ /* get cursor for caller of sighandler: */
@ -48,15 +47,18 @@ sighandler (int signal)
if (unw_step (&cursor2) < 0) if (unw_step (&cursor2) < 0)
panic ("failed to find signal frame!\n"); panic ("failed to find signal frame!\n");
if (unw_get_reg (&cursor2, UNW_REG_RP, &rp) < 0) if (unw_step (&cursor2) < 0)
panic ("unw_step() failed!\n");
if (unw_get_reg (&cursor2, UNW_REG_IP, &ip) < 0)
panic ("failed to get IP!\n"); panic ("failed to get IP!\n");
/* skip faulting instruction (doesn't handle MLX template) */ /* skip faulting instruction (doesn't handle MLX template) */
++rp; ++ip;
if (rp & 0x3 == 0x3) if (ip & 0x3 == 0x3)
rp += 13; ip += 13;
if (unw_set_reg (&cursor2, UNW_REG_RP, rp) < 0) if (unw_set_reg (&cursor2, UNW_REG_IP, ip) < 0)
panic ("failed to set IP!\n"); panic ("failed to set IP!\n");
unw_resume (&cursor); /* update context & return to caller of sighandler() */ unw_resume (&cursor); /* update context & return to caller of sighandler() */
@ -65,7 +67,7 @@ sighandler (int signal)
} }
static void static void
doit (char *p) doit (volatile char *p)
{ {
int ch; int ch;