From 6e44f060ffb5fff8d3987024d8facfb7997a3b25 Mon Sep 17 00:00:00 2001 From: Mark Wielaard Date: Mon, 15 Dec 2008 18:20:04 +0100 Subject: Compile and use helper usymbols_lib.c library for usymbols.exp test. --- testsuite/systemtap.context/usymbols_lib.c | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) create mode 100644 testsuite/systemtap.context/usymbols_lib.c (limited to 'testsuite/systemtap.context/usymbols_lib.c') diff --git a/testsuite/systemtap.context/usymbols_lib.c b/testsuite/systemtap.context/usymbols_lib.c new file mode 100644 index 00000000..faccb39b --- /dev/null +++ b/testsuite/systemtap.context/usymbols_lib.c @@ -0,0 +1,29 @@ +/* usymbol test case - library helper + * Copyright (C) 2008, Red Hat Inc. + * + * This file is part of systemtap, and is free software. You can + * redistribute it and/or modify it under the terms of the GNU General + * Public License (GPL); either version 2, or (at your option) any + * later version. + * + * Uses signal to tranfer user space addresses into the kernel where a + * probe on sigaction will extract them and produce the symbols. To + * poke into the executable we get the sa_handler set through signal + * from this library. + */ + +#include +typedef void (*sighandler_t)(int); + +void +lib_handler (int signum) +{ + /* dummy handler, just used for the address... */ +} + +void +lib_main () +{ + // Use SIGFPE since we never expect that to be triggered. + signal(SIGFPE, lib_handler); +} -- cgit