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authorWu Zhangjin <wuzhangjin@gmail.com>2011-01-22 02:01:53 +0800
committerRalf Baechle <ralf@linux-mips.org>2011-03-14 21:07:24 +0100
commitb9f07eb2f25a64098e2ba223c1a2fe2a8f249e01 (patch)
tree1b52def8282e9faa067acb9fc360cbc10ff03fc1 /arch/mips/mm
parent7f21a60968221eabad5c53fe760db3d094994011 (diff)
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/mm')
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