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authorFrederic Weisbecker <fweisbec@gmail.com>2010-04-03 06:22:05 -0400
committerFrederic Weisbecker <fweisbec@gmail.com>2010-04-03 06:22:05 -0400
commit26d80aa782e708c380a47601779d42d30bf016d6 (patch)
tree0d4c1357fa600123d1173d536537a88c8316e031 /kernel
parentb0f86f5a169c758a82b0e23eef6795356f6d5a25 (diff)
perf: Always build the stub perf_arch_fetch_caller_regs version
Now that software events use perf_arch_fetch_caller_regs() too, we need the stub version to be always built in for archs that don't implement it. Fixes the following build error in PARISC: kernel/built-in.o: In function `perf_event_task_sched_out': (.text.perf_event_task_sched_out+0x54): undefined reference to `perf_arch_fetch_caller_regs' Reported-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/perf_event.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/kernel/perf_event.c b/kernel/perf_event.c
index 96aae13c7960..681af806d76b 100644
--- a/kernel/perf_event.c
+++ b/kernel/perf_event.c
@@ -2784,12 +2784,11 @@ __weak struct perf_callchain_entry *perf_callchain(struct pt_regs *regs)
2784 return NULL; 2784 return NULL;
2785} 2785}
2786 2786
2787#ifdef CONFIG_EVENT_TRACING
2788__weak 2787__weak
2789void perf_arch_fetch_caller_regs(struct pt_regs *regs, unsigned long ip, int skip) 2788void perf_arch_fetch_caller_regs(struct pt_regs *regs, unsigned long ip, int skip)
2790{ 2789{
2791} 2790}
2792#endif 2791
2793 2792
2794/* 2793/*
2795 * Output 2794 * Output