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authorHelge Deller <deller@gmx.de>2009-02-09 00:43:36 +0100
committerKyle McMartin <kyle@mcmartin.ca>2009-03-31 02:51:34 +0000
commitd75f054a2cf0614ff63d534ff21ca8eaab41e713 (patch)
treee1fbea035711abf72099ebd01918f5ba3c3cf9ae /arch/parisc/kernel/parisc_ksyms.c
parent803094f480aa5b7dd5187a17e6e60ff24721c212 (diff)
parisc: add ftrace (function and graph tracer) functionality
This patch adds the ftrace debugging functionality to the parisc kernel. It will currently only work with 64bit kernels, because the gcc options -pg and -ffunction-sections can't be enabled at the same time and -ffunction-sections is still needed to be able to link 32bit kernels. Signed-off-by: Helge Deller <deller@gmx.de> Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
Diffstat (limited to 'arch/parisc/kernel/parisc_ksyms.c')
-rw-r--r--arch/parisc/kernel/parisc_ksyms.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/parisc/kernel/parisc_ksyms.c b/arch/parisc/kernel/parisc_ksyms.c
index 0eecfbbc59c..df653663d3d 100644
--- a/arch/parisc/kernel/parisc_ksyms.c
+++ b/arch/parisc/kernel/parisc_ksyms.c
@@ -153,5 +153,10 @@ EXPORT_SYMBOL(node_data);
EXPORT_SYMBOL(pfnnid_map);
#endif
+#ifdef CONFIG_FUNCTION_TRACER
+extern void _mcount(void);
+EXPORT_SYMBOL(_mcount);
+#endif
+
/* from pacache.S -- needed for copy_page */
EXPORT_SYMBOL(copy_user_page_asm);