1 files changed, 31 insertions, 0 deletions
diff --git a/ports/sysdeps/unix/sysv/linux/ia64/profil-counter.h b/ports/sysdeps/unix/sysv/linux/ia64/profil-counter.h
new file mode 100644
index 0000000000..f634ccc846
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/ia64/profil-counter.h
@@ -0,0 +1,31 @@
+/* Machine-dependent SIGPROF signal handler.  IA-64 version.
+   Copyright (C) 1996, 1997, 2000 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
+   <http://www.gnu.org/licenses/>.  */
+
+/* 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));
+}