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libunwind-eh_elf
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benching: actually bench

This commit is contained in:
Théophile Bastian 2018-06-15 02:16:42 +02:00
parent 4024d5c269
commit 05f3d38971
1 changed files with 6 additions and 0 deletions
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6
src/x86_64/Gstep.c
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@ -27,6 +27,7 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
#include "unwind_i.h"
#include <signal.h>
#include <libunwind.h>
/* Recognise PLT entries such as:
3bdf0: ff 25 e2 49 13 00 jmpq *0x1349e2(%rip)
@ -58,6 +59,8 @@ unw_step (unw_cursor_t *cursor)
struct cursor *c = (struct cursor *) cursor;
int ret, i;
struct timespec _timer_start = chrono_start();
#if CONSERVATIVE_CHECKS
int val = c->validate;
c->validate = 1;
@ -119,6 +122,7 @@ unw_step (unw_cursor_t *cursor)
ret = unw_handle_signal_frame(cursor);
if (ret < 0)
{
chrono_end(_timer_start);
Debug (2, "returning 0\n");
return 0;
}
@ -203,6 +207,7 @@ unw_step (unw_cursor_t *cursor)
if (DWARF_IS_NULL_LOC (c->dwarf.loc[RBP]))
{
ret = 0;
chrono_end(_timer_start);
Debug (2, "NULL %%rbp loc, returning %d\n", ret);
return ret;
}
@ -225,6 +230,7 @@ unw_step (unw_cursor_t *cursor)
if (c->dwarf.ip == prev_ip && c->dwarf.cfa == prev_cfa)
return -UNW_EBADFRAME;
}
chrono_end(_timer_start);
Debug (2, "returning %d\n", ret);
return ret;
}