[patch 2/5] perf_counter: Synthesize VDSO mmap event

[Anton Blanchard]

perf record synthesizes mmap events for the running process. Right now
it just catches file mappings, but we can check for the vdso symbol
and add that too.

Signed-off-by: Anton Blanchard <anton@xxxxxxxxx>
---

Only tested on PowerPC, but I assume x86 has the same issue.

Index: linux.trees.git/tools/perf/builtin-record.c
===================================================================
--- linux.trees.git.orig/tools/perf/builtin-record.c	2009-07-13 12:33:49.000000000 +1000
+++ linux.trees.git/tools/perf/builtin-record.c	2009-07-13 13:25:00.000000000 +1000
@@ -313,6 +313,10 @@
 		if (*pbf == 'x') { /* vm_exec */
 			char *execname = strchr(bf, '/');
 
+			/* Catch VDSO */
+			if (execname == NULL)
+				execname = strstr(bf, "[vdso]");
+
 			if (execname == NULL)
 				continue;
 

-- 

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