perf kretprobes: Offset from reloc_sym if kernel supports it

[linux-2.6-microblaze.git] / tools / perf / util / probe-file.c

diff --git a/tools/perf/util/probe-file.c b/tools/perf/util/probe-file.c
index 8a219cd..1542cd0 100644 (file)
--- a/tools/perf/util/probe-file.c
+++ b/tools/perf/util/probe-file.c
@@ -879,6 +879,7 @@ int probe_cache__show_all_caches(struct strfilter *filter)
 
 enum ftrace_readme {
        FTRACE_README_PROBE_TYPE_X = 0,
+       FTRACE_README_KRETPROBE_OFFSET,
        FTRACE_README_END,
 };
 
@@ -889,6 +890,7 @@ static struct {
 #define DEFINE_TYPE(idx, pat)                  \
        [idx] = {.pattern = pat, .avail = false}
        DEFINE_TYPE(FTRACE_README_PROBE_TYPE_X, "*type: * x8/16/32/64,*"),
+       DEFINE_TYPE(FTRACE_README_KRETPROBE_OFFSET, "*place (kretprobe): *"),
 };
 
 static bool scan_ftrace_readme(enum ftrace_readme type)
@@ -939,3 +941,8 @@ bool probe_type_is_available(enum probe_type type)
 
        return true;
 }
+
+bool kretprobe_offset_is_supported(void)
+{
+       return scan_ftrace_readme(FTRACE_README_KRETPROBE_OFFSET);
+}