Initial effort at adding profiling support.

1 files changed, 27 insertions, 0 deletions

diff --git a/libc/sysdeps/linux/common/bits/profil-counter.h b/libc/sysdeps/linux/common/bits/profil-counter.h
new file mode 100644
index 000000000..9cae5840d
--- /dev/null
+++ b/libc/sysdeps/linux/common/bits/profil-counter.h
@@ -0,0 +1,27 @@
+/* Machine-dependent SIGPROF signal handler.  "Generic" version w/ sigcontext
+   Copyright (C) 1996, 1997 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, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+/* 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, int code, struct sigcontext *scp)
+{
+  profil_count ((void *) scp->sc_pc);
+}