From c70a4b1db0cf5e813ae24b0fa96a352399eb6edf Mon Sep 17 00:00:00 2001 From: Mike Frysinger Date: Sat, 15 Feb 2014 22:07:25 -0500 Subject: ia64: relocate out of ports/ subdir --- sysdeps/unix/sysv/linux/ia64/profil-counter.h | 31 +++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) create mode 100644 sysdeps/unix/sysv/linux/ia64/profil-counter.h (limited to 'sysdeps/unix/sysv/linux/ia64/profil-counter.h') diff --git a/sysdeps/unix/sysv/linux/ia64/profil-counter.h b/sysdeps/unix/sysv/linux/ia64/profil-counter.h new file mode 100644 index 0000000000..1bd5c218ca --- /dev/null +++ b/sysdeps/unix/sysv/linux/ia64/profil-counter.h @@ -0,0 +1,31 @@ +/* Machine-dependent SIGPROF signal handler. IA-64 version. + Copyright (C) 1996-2014 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + . */ + +/* In many Unix systems signal handlers are called like this + and the interrupted PC is easily findable in the `struct sigcontext'. */ + +static void +profil_counter (int signr, siginfo_t *si, struct sigcontext *scp) +{ + 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)); +} -- cgit 1.4.1