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| author | Qing Zhang <zhangqing@loongson.cn> | 2022-08-06 16:10:04 +0800 |
|---|---|---|
| committer | Huacai Chen <chenhuacai@loongson.cn> | 2022-08-12 13:10:11 +0800 |
| commit | 93a4fa622eb061f75f87f0cf9609ab4e69c67d01 (patch) | |
| tree | d49f5b01e8a2299424b31d9344101dc5b5a561d7 /arch/loongarch/kernel/asm-offsets.c | |
| parent | 49aef111e2dae176a7708b532118f33f24289248 (diff) | |
LoongArch: Add STACKTRACE support
1. Use common arch_stack_walk() infrastructure to avoid duplicated code
and avoid taking care of the stack storage and filtering.
2. Add sched_ra (means sched return address) and sched_cfa (means sched
call frame address) to thread_info, and store them in switch_to().
3. Add __get_wchan() implementation.
Now we can print the process stack and wait channel by cat /proc/*/stack
and /proc/*/wchan.
Signed-off-by: Qing Zhang <zhangqing@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
Diffstat (limited to 'arch/loongarch/kernel/asm-offsets.c')
| -rw-r--r-- | arch/loongarch/kernel/asm-offsets.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/loongarch/kernel/asm-offsets.c b/arch/loongarch/kernel/asm-offsets.c index 20cd9e16a95a..eb350f3ffae5 100644 --- a/arch/loongarch/kernel/asm-offsets.c +++ b/arch/loongarch/kernel/asm-offsets.c @@ -103,6 +103,8 @@ void output_thread_defines(void) OFFSET(THREAD_REG29, task_struct, thread.reg29); OFFSET(THREAD_REG30, task_struct, thread.reg30); OFFSET(THREAD_REG31, task_struct, thread.reg31); + OFFSET(THREAD_SCHED_RA, task_struct, thread.sched_ra); + OFFSET(THREAD_SCHED_CFA, task_struct, thread.sched_cfa); OFFSET(THREAD_CSRCRMD, task_struct, thread.csr_crmd); OFFSET(THREAD_CSRPRMD, task_struct, |