On Wed, 1 Sep 2010, stephane eranian wrote:
> That's because on ARM, the _NR_perf_event_open syscall is already
> defined in some generic header file (I bet /usr/include/asm/unistd.h).
> That means I need to fix my perf_event.h to check for that before forcing
> a definition on its own.
It's pulled in my /usr/include/asm/unistd.h (I'm running Debian Unstable
which has recent enough headers).
What's weird is that on x86_64 the same include should pull in the
equivelent x86_64 header, which also has a duplicate definition, on my
x86_64 machines. Somehow it doesn't though; I wasted some time
trying to figure out how it avoids the conflict.
In any case, with a patch like the one at the end included, the current
git of libpfm4 runs fine on my ARM system.
Thanks
Vince
diff --git a/include/perfmon/perf_event.h b/include/perfmon/perf_event.h
index 00e2748..2100e69 100644
--- a/include/perfmon/perf_event.h
+++ b/include/perfmon/perf_event.h
@@ -446,6 +446,7 @@ enum perf_callchain_context {
#define __NR_perf_event_open 319
#endif
+#ifndef __NR_perf_event_open
#ifdef __arm__
#if defined(__ARM_EABI__) || defined(__thumb__)
#define __NR_perf_event_open 364
@@ -453,6 +454,7 @@ enum perf_callchain_context {
#define __NR_perf_event_open (0x900000+364)
#endif
#endif
+#endif
static inline int
perf_event_open(
------------------------------------------------------------------------------
This SF.net Dev2Dev email is sponsored by:
Show off your parallel programming skills.
Enter the Intel(R) Threading Challenge 2010.
http://p.sf.net/sfu/intel-thread-sfd
_______________________________________________
perfmon2-devel mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/perfmon2-devel
