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| author | Donglin Peng <pengdonglin@sangfor.com.cn> | 2023-04-08 15:42:20 +0300 |
|---|---|---|
| committer | Steven Rostedt (Google) <rostedt@goodmis.org> | 2023-06-21 01:38:38 +0300 |
| commit | d938ba17683effd95b44400d30df16fe541f40fd (patch) | |
| tree | 9e97f4c3d84f75dc701e6cdbac69f39e6f426498 /arch/loongarch/kernel/mcount_dyn.S | |
| parent | 3646970322464c21e69dcb9a2e37d461c5834bf5 (diff) | |
| download | linux-d938ba17683effd95b44400d30df16fe541f40fd.tar.xz | |
x86/ftrace: Enable HAVE_FUNCTION_GRAPH_RETVAL
The previous patch ("function_graph: Support recording and printing
the return value of function") has laid the groundwork for the for
the funcgraph-retval, and this modification makes it available on
the x86 platform.
We introduce a new structure called fgraph_ret_regs for the x86
platform to hold return registers and the frame pointer. We then
fill its content in the return_to_handler and pass its address
to the function ftrace_return_to_handler to record the return
value.
Link: https://lkml.kernel.org/r/53a506f0f18ff4b7aeb0feb762f1c9a5e9b83ee9.1680954589.git.pengdonglin@sangfor.com.cn
Signed-off-by: Donglin Peng <pengdonglin@sangfor.com.cn>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Diffstat (limited to 'arch/loongarch/kernel/mcount_dyn.S')
0 files changed, 0 insertions, 0 deletions