2000-10-25 David Mosberger <davidm@hpl.hp.com>
* sysdeps/unix/sysv/linux/ia64/profil-counter.h: Multiply slot
number by four to use bins of width 4 to get accurate
instruction-level profiling.
+2000-10-25 David Mosberger <davidm@hpl.hp.com>
+
+ * sysdeps/unix/sysv/linux/ia64/profil-counter.h: Multiply slot
+ number by four to use bins of width 4 to get accurate
+ instruction-level profiling.
+
2000-10-25 Andreas Jaeger <aj@suse.de>
* sysdeps/generic/dl-cache.h (CACHEMAGIC_VERSION_NEW): Correct string.
static void
profil_counter (int signr, int code, struct sigcontext *scp)
{
- profil_count ((void *) scp->sc_ip);
+ unsigned long ip = scp->sc_ip & ~0X3ULL, slot = scp->sc_ip & 0x3ull;
+
+ /* Note: Linux/ia64 encodes the slot number in bits 0 and 1. We
+ want to multiply the slot number by four so we can use bins of
+ width 4 to get accurate instruction-level profiling. */
+ profil_count ((void *) (ip + 4*slot));
}