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authorVasily Gorbik <gor@linux.ibm.com>2018-08-06 15:17:46 +0200
committerSteven Rostedt (VMware) <rostedt@goodmis.org>2018-08-16 04:38:38 +0200
commit2f4df0017baedd535254d987c6b10f855f1fb11f (patch)
treec035a8d2357ee4c54b584a3ba4153d4673fa057f /arch/s390/kernel
parenttracing: Avoid calling cc-option -mrecord-mcount for every Makefile (diff)
downloadlinux-2f4df0017baedd535254d987c6b10f855f1fb11f.tar.xz
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tracing: Add -mcount-nop option support
-mcount-nop gcc option generates the calls to the profiling functions as nops which allows to avoid patching mcount jump with NOP instructions initially. -mcount-nop gcc option will be activated if platform selects HAVE_NOP_MCOUNT and gcc actually supports it. In addition to that CC_USING_NOP_MCOUNT is defined and could be used by architectures to adapt ftrace patching behavior. Link: http://lkml.kernel.org/r/patch-3.thread-aa7b8d.git-e02ed2dc082b.your-ad-here.call-01533557518-ext-9465@work.hours Signed-off-by: Vasily Gorbik <gor@linux.ibm.com> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Diffstat (limited to 'arch/s390/kernel')
0 files changed, 0 insertions, 0 deletions