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| author |   Steven Rostedt (VMware) <rostedt@goodmis.org> | 2020-04-22 12:25:42 -0400 |
|---|---|---|
| committer | Steven Rostedt (VMware) <rostedt@goodmis.org> | 2020-06-29 11:42:48 -0400 |
| commit | fe58acefd5a66d33a8fb94da53c3af4374b6d376 (patch) | |
| tree | e00f659bf2156c567425f165d847357dda3c1442 /include/trace | |
| parent | x86/ftrace: Only have the builtin ftrace_regs_caller call direct hooks (diff) | |
| download | linux-dev-fe58acefd5a66d33a8fb94da53c3af4374b6d376.tar.xz linux-dev-fe58acefd5a66d33a8fb94da53c3af4374b6d376.zip | |
x86/ftrace: Do not jump to direct code in created trampolines
When creating a trampoline based on the ftrace_regs_caller code, nop out the
jnz test that would jmup to the code that would return to a direct caller
(stored in the ORIG_RAX field) and not back to the function that called it.
Link: http://lkml.kernel.org/r/20200422162750.638839749@goodmis.org
Cc: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Diffstat (limited to 'include/trace')
0 files changed, 0 insertions, 0 deletions