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| author | Leo Yan <leo.yan@linaro.org> | 2019-08-06 18:00:14 +0800 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2019-08-07 13:53:09 +0100 |
| commit | 42d038c4fb00f1ec1a4c4616784da4561385b628 (patch) | |
| tree | c8c5335e01986c073ae56ca1df94eeed5c13fe1e /arch/arm64/Kconfig | |
| parent | 45880f7b7b19e043ce0aaa4cb7d05369425c82fa (diff) | |
| download | lwn-42d038c4fb00f1ec1a4c4616784da4561385b628.tar.gz lwn-42d038c4fb00f1ec1a4c4616784da4561385b628.zip | |
arm64: Add support for function error injection
Inspired by the commit 7cd01b08d35f ("powerpc: Add support for function
error injection"), this patch supports function error injection for
Arm64.
This patch mainly support two functions: one is regs_set_return_value()
which is used to overwrite the return value; the another function is
override_function_with_return() which is to override the probed
function returning and jump to its caller.
Reviewed-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Leo Yan <leo.yan@linaro.org>
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'arch/arm64/Kconfig')
| -rw-r--r-- | arch/arm64/Kconfig | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 3adcec05b1f6..b15803afb2a0 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -148,6 +148,7 @@ config ARM64 select HAVE_FAST_GUP select HAVE_FTRACE_MCOUNT_RECORD select HAVE_FUNCTION_TRACER + select HAVE_FUNCTION_ERROR_INJECTION select HAVE_FUNCTION_GRAPH_TRACER select HAVE_GCC_PLUGINS select HAVE_HW_BREAKPOINT if PERF_EVENTS |