| Commit message (Collapse) | Author | Age | Files | Lines | |
|---|---|---|---|---|---|
| * | microblaze: ftrace: Add dynamic function graph tracer | Michal Simek | 2009-12-14 | 1 | -0/+28 |
| | | | | | | | | | | | | | This patch add support for dynamic function graph tracer. There is one my expactation that I can do flush_icache after all code modification. On microblaze is this safer than do flush for every entry. For icache is used name flush but correct should be invalidation - this will be fix in upcomming new cache implementaion and WB support. Signed-off-by: Michal Simek <monstr@monstr.eu> | ||||
| * | microblaze: ftrace: add function graph support | Michal Simek | 2009-12-14 | 1 | -0/+58 |
| | | | | | | | For more information look at Documentation/trace folder. Signed-off-by: Michal Simek <monstr@monstr.eu> | ||||
| * | microblaze: ftrace: Add dynamic trace support | Michal Simek | 2009-12-14 | 1 | -0/+151 |
| With dynamic function tracer, by default, _mcount is defined as an "empty" function, it returns directly without any more action. When enabling it in user-space, it will jump to a real tracing function(ftrace_caller), and do the real job for us. Differ from the static function tracer, dynamic function tracer provides two functions ftrace_make_call()/ftrace_make_nop() to enable/disable the tracing of some indicated kernel functions(set_ftrace_filter). In the kernel version, there is only one "_mcount" string for every kernel function, so, we just need to match this one in mcount_regex of scripts/recordmcount.pl. For more information please look at code and Documentation/trace folder. Steven ACK that scripts/recordmcount.pl part. Acked-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Michal Simek <monstr@monstr.eu> | |||||
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index : op-kernel-dev | |
| Development kernel branch for OpenPOWER systems | Raptor Engineering, LLC |
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