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| author | Wu Zhangjin <wuzhangjin@gmail.com> | 2011-01-22 02:01:53 +0800 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2011-03-14 21:07:24 +0100 |
| commit | b9f07eb2f25a64098e2ba223c1a2fe2a8f249e01 (patch) | |
| tree | 1b52def8282e9faa067acb9fc360cbc10ff03fc1 /arch/mips/kernel/kprobes.c | |
| parent | 7f21a60968221eabad5c53fe760db3d094994011 (diff) | |
| download | blackbird-obmc-linux-b9f07eb2f25a64098e2ba223c1a2fe2a8f249e01.tar.gz blackbird-obmc-linux-b9f07eb2f25a64098e2ba223c1a2fe2a8f249e01.zip | |
MIPS, Tracing: Fix set_graph_function of function graph tracer
trace.func should be set to the recorded ip of the mcount calling site
in the __mcount_loc section to filter the function entries configured
through the tracing/set_graph_function interface, but before, this is
set to the self_ra(the return address of mcount), which has made
set_graph_function not work as expected.
This fixes it via calculating the right recorded ip in the __mcount_loc
section and assign it to trace.func.
Reported-by: Zhiping Zhong <xzhong86@163.com>
Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com>
Cc: Steven Rostedt <srostedt@redhat.com>
Cc: Sergei Shtylyov <sshtylyov@mvista.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2017/
Signed-off-by: Ralf Baechle <ralf@duck.linux-mips.net>
Diffstat (limited to 'arch/mips/kernel/kprobes.c')
0 files changed, 0 insertions, 0 deletions
