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authorShaohua Li <shaohua.li@intel.com>2009-01-09 11:29:46 +0800
committerIngo Molnar <mingo@elte.hu>2009-01-14 12:11:26 +0100
commitd3e75ff14bc1453c4762428395aac9953a023efc (patch)
treeb25ec02c30da77257ab02b232b932308260e83ba /arch/ia64/kernel/ia64_ksyms.c
parent418071eb6adbfd3980b2f57f7df8e03921e3f1d7 (diff)
downloadlinux-stericsson-d3e75ff14bc1453c4762428395aac9953a023efc.tar.gz
ftrace, ia64: IA64 static ftrace support
IA64 ftrace suppport. In IA64, below code will be added in each function if -pg is enabled. alloc r40=ar.pfs,12,8,0 mov r43=r0;; mov r42=b0 mov r41=r1 nop.i 0x0 br.call.sptk.many b0 = _mcount;; Signed-off-by: Shaohua Li <shaohua.li@intel.com> Signed-off-by: Steven Rostedt <srostedt@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/ia64/kernel/ia64_ksyms.c')
-rw-r--r--arch/ia64/kernel/ia64_ksyms.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/ia64/kernel/ia64_ksyms.c b/arch/ia64/kernel/ia64_ksyms.c
index 6da1f20d7372..2d311864e359 100644
--- a/arch/ia64/kernel/ia64_ksyms.c
+++ b/arch/ia64/kernel/ia64_ksyms.c
@@ -112,3 +112,9 @@ EXPORT_SYMBOL_GPL(esi_call_phys);
#endif
extern char ia64_ivt[];
EXPORT_SYMBOL(ia64_ivt);
+
+#include <asm/ftrace.h>
+#ifdef CONFIG_FUNCTION_TRACER
+/* mcount is defined in assembly */
+EXPORT_SYMBOL(_mcount);
+#endif