diff options
Diffstat (limited to 'sysdeps/generic/segfault.c')
| -rw-r--r-- | sysdeps/generic/segfault.c | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/sysdeps/generic/segfault.c b/sysdeps/generic/segfault.c index 502b239602..848dae43dc 100644 --- a/sysdeps/generic/segfault.c +++ b/sysdeps/generic/segfault.c @@ -1,5 +1,5 @@ /* Catch segmentation faults and print backtrace. - Copyright (C) 1998 Free Software Foundation, Inc. + Copyright (C) 1998, 1999 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998. @@ -61,9 +61,15 @@ extern void *__libc_stack_end; # define INNER_THAN < #endif +/* By default assume the `next' pointer in struct layout points to the + next struct layout. */ +#ifndef ADVANCE_STACK_FRAME +# define ADVANCE_STACK_FRAME(next) ((struct layout *) (next)) +#endif + struct layout { - struct layout *next; + void *next; void *return_address; }; @@ -118,7 +124,7 @@ catch_segfault (int signal, SIGCONTEXT ctx) { ++cnt; - current = current->next; + current = ADVANCE_STACK_FRAME (current->next); } arr = alloca (cnt * sizeof (void *)); @@ -133,7 +139,7 @@ catch_segfault (int signal, SIGCONTEXT ctx) { arr[cnt++] = current->return_address; - current = current->next; + current = ADVANCE_STACK_FRAME (current->next); } /* If the last return address was NULL, assume that it doesn't count. */ @@ -179,7 +185,7 @@ install_handler (void) sa.sa_flags |= SA_ONSTACK; } } - + if (sigs == NULL) sigaction (SIGSEGV, &sa, NULL); else if (sigs[0] == '\0') |