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Commit a00dc319 authored by Stephane Eranian's avatar Stephane Eranian Committed by Arnaldo Carvalho de Melo
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perf record: Fix branch_stack type in perf_record_opts 



The attr.branch_sample_type field is defined as u64 by the API.  As
such, we need to ensure the variable holding the value of the branch
stack filters is also u64 otherwise we may lose bits in the future.

Note also that the bogus definition of the field in perf_record_opts
caused problems on big-endian PPC systems.  Thanks to Anshuman Khandual
for tracking the problem on PPC.

Reported-by: default avatarAnshuman Khandual <khandual@linux.vnet.ibm.com>
Signed-off-by: default avatarStephane Eranian <eranian@google.com>
Cc: Anshuman Khandual <khandual@linux.vnet.ibm.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20120525211344.GA7729@quad


Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent c410431c

tools/perf/perf.h

+1 −1
Original line number Diff line number Diff line
@@ -227,7 +227,7 @@ struct perf_record_opts { 
	unsigned int freq;

	unsigned int mmap_pages;

	unsigned int user_freq;

	int	     branch_stack;

	u64          branch_stack;

	u64	     default_interval;

	u64	     user_interval;

};