diff options
Diffstat (limited to 'sysdeps/generic/backtrace.c')
| -rw-r--r-- | sysdeps/generic/backtrace.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/sysdeps/generic/backtrace.c b/sysdeps/generic/backtrace.c index 7ac1d5f..2d329e1 100644 --- a/sysdeps/generic/backtrace.c +++ b/sysdeps/generic/backtrace.c @@ -44,6 +44,11 @@ extern void *__libc_stack_end; # define CURRENT_STACK_FRAME ({ char __csf; &__csf; }) #endif +/* By default we assume that the stack grows downward. */ +#ifndef INNER_THAN +# define INNER_THAN < +#endif + struct layout { struct layout *next; @@ -67,7 +72,8 @@ __backtrace (array, size) current = (struct layout *) top_frame; while (cnt < size) { - if ((void *) current < top_stack || (void *) current > __libc_stack_end) + if ((void *) current INNER_THAN top_stack + || !((void *) current INNER_THAN __libc_stack_end)) /* This means the address is out of range. Note that for the toplevel we see a frame pointer with value NULL which clearly is out of range. */ |