diff options
| author |   Youling Tang <tangyouling@loongson.cn> | 2023-05-01 17:19:53 +0800 |
|---|---|---|
| committer |   Huacai Chen <chenhuacai@loongson.cn> | 2023-05-01 17:19:53 +0800 |
| commit | 22f367a689ceceb08d9ce6a65c43c9640f5cb935 (patch) | |
| tree | 7147bf854ddf5513492435dfdb2fa041da76e829 /arch | |
| parent | LoongArch: ftrace: Add direct call support (diff) | |
| download | wireguard-linux-22f367a689ceceb08d9ce6a65c43c9640f5cb935.tar.xz wireguard-linux-22f367a689ceceb08d9ce6a65c43c9640f5cb935.zip | |
LoongArch: ftrace: Add direct call trampoline samples support
The ftrace samples need per-architecture trampoline implementations to
save and restore argument registers around the calls to my_direct_func*
and to restore polluted registers (e.g: ra).
Signed-off-by: Qing Zhang <zhangqing@loongson.cn>
Signed-off-by: Youling Tang <tangyouling@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/loongarch/Kconfig | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/loongarch/Kconfig b/arch/loongarch/Kconfig index 3a79bde6bf5b..ac3d3d9b5716 100644 --- a/arch/loongarch/Kconfig +++ b/arch/loongarch/Kconfig @@ -120,6 +120,8 @@ config LOONGARCH select HAVE_PERF_USER_STACK_DUMP select HAVE_REGS_AND_STACK_ACCESS_API select HAVE_RSEQ + select HAVE_SAMPLE_FTRACE_DIRECT + select HAVE_SAMPLE_FTRACE_DIRECT_MULTI select HAVE_SETUP_PER_CPU_AREA if NUMA select HAVE_STACKPROTECTOR select HAVE_SYSCALL_TRACEPOINTS |