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| author | Guo Ren <guoren@linux.alibaba.com> | 2020-05-13 10:15:25 +0300 |
|---|---|---|
| committer | Guo Ren <guoren@linux.alibaba.com> | 2020-05-13 12:55:06 +0300 |
| commit | 18c07d23da5a48525b2955aa269b8bb108c19300 (patch) | |
| tree | 450a798836c2658ff1a2b7fce73bbc5bd59df9af /arch/csky/Kconfig | |
| parent | 229a0ddee1108a3f82a873e6cbbe35c92c540444 (diff) | |
| download | linux-18c07d23da5a48525b2955aa269b8bb108c19300.tar.xz | |
csky: Fixup calltrace panic
The implementation of show_stack will panic with wrong fp:
addr = *fp++;
because the fp isn't checked properly.
The current implementations of show_stack, wchan and stack_trace
haven't been designed properly, so just deprecate them.
This patch is a reference to riscv's way, all codes are modified from
arm's. The patch is passed with:
- cat /proc/<pid>/stack
- cat /proc/<pid>/wchan
- echo c > /proc/sysrq-trigger
Signed-off-by: Guo Ren <guoren@linux.alibaba.com>
Diffstat (limited to 'arch/csky/Kconfig')
| -rw-r--r-- | arch/csky/Kconfig | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/csky/Kconfig b/arch/csky/Kconfig index 94545d50d40f..bd31ab12f77d 100644 --- a/arch/csky/Kconfig +++ b/arch/csky/Kconfig @@ -8,6 +8,7 @@ config CSKY select ARCH_HAS_SYNC_DMA_FOR_DEVICE select ARCH_USE_BUILTIN_BSWAP select ARCH_USE_QUEUED_RWLOCKS if NR_CPUS>2 + select ARCH_WANT_FRAME_POINTERS if !CPU_CK610 select COMMON_CLK select CLKSRC_MMIO select CSKY_MPINTC if CPU_CK860 @@ -38,6 +39,7 @@ config CSKY select HAVE_ARCH_TRACEHOOK select HAVE_ARCH_AUDITSYSCALL select HAVE_COPY_THREAD_TLS + select HAVE_DEBUG_BUGVERBOSE select HAVE_DYNAMIC_FTRACE select HAVE_DYNAMIC_FTRACE_WITH_REGS select HAVE_FUNCTION_TRACER |