]> git.proxmox.com Git - mirror_ubuntu-kernels.git/commit
perf record: Add HEADER_BRANCH_STACK tag
authorStephane Eranian <eranian@google.com>
Thu, 8 Mar 2012 22:47:46 +0000 (23:47 +0100)
committerIngo Molnar <mingo@elte.hu>
Fri, 9 Mar 2012 07:26:08 +0000 (08:26 +0100)
commit330aa675b4f92a422cb6d3acbbfd16a628017520
treeb1feef795c8de616b31e8a0683c7c0e7498d2d33
parenta5aabdacde9caff54886ae454e0fad2f26929753
perf record: Add HEADER_BRANCH_STACK tag

This patch adds a new feature bit, namely,
HEADER_BRANCH_STACK.  When present, it indicates
that sample records may contain branch stack.

This could be useful to a viewer to switch to
branch mode without having to parse all the
samples or without a specific cmdline option.

This will be used in a subsequent patch to
enhance perf report with branch stacks.

Signed-off-by: Stephane Eranian <eranian@google.com>
Cc: peterz@infradead.org
Cc: acme@redhat.com
Cc: asharma@fb.com
Cc: ravitillo@lbl.gov
Cc: vweaver1@eecs.utk.edu
Cc: khandual@linux.vnet.ibm.com
Cc: dsahern@gmail.com
Link: http://lkml.kernel.org/r/1331246868-19905-3-git-send-email-eranian@google.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
tools/perf/builtin-record.c
tools/perf/util/header.c
tools/perf/util/header.h