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authorYouling Tang <tangyouling@loongson.cn>2023-05-01 17:19:53 +0800
committerHuacai Chen <chenhuacai@loongson.cn>2023-05-01 17:19:53 +0800
commit22f367a689ceceb08d9ce6a65c43c9640f5cb935 (patch)
tree7147bf854ddf5513492435dfdb2fa041da76e829 /arch
parent9cdc3b6a299c6314485bcfb695546c11d35dac4c (diff)
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/Kconfig2
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