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| author | Steven J. Magnani <steve@digidescorp.com> | 2010-04-27 21:37:54 +0400 |
|---|---|---|
| committer | Michal Simek <monstr@monstr.eu> | 2010-08-04 12:22:35 +0400 |
| commit | ce3266c047389443d5f433d605c769e878cbe46e (patch) | |
| tree | e638a255d5d0f1b000a81b512dc605b92d0b8701 /arch/microblaze/include/asm/system.h | |
| parent | ba9c4f88d747836bf35c3eee36aa18d2e164f493 (diff) | |
| download | linux-ce3266c047389443d5f433d605c769e878cbe46e.tar.xz | |
microblaze: Add stack unwinder
Implement intelligent backtracing by searching for stack frame creation,
and emitting only return addresses. Use print_hex_dump() to display the
entire binary kernel stack.
Limitation: MMU kernels are not currently able to trace beyond a system trap
(interrupt, syscall, etc.). It is the intent of this patch to provide
infrastructure that can be extended to add this capability later.
Changes from V1:
* Removed checks in find_frame_creation() that prevented location of the frame
creation instruction in heavily optimized code
* Various formatting/commenting/file location tweaks per review comments
* Dropped Kconfig option to enable STACKTRACE as something logically separate
Signed-off-by: Steven J. Magnani <steve@digidescorp.com>
Diffstat (limited to 'arch/microblaze/include/asm/system.h')
| -rw-r--r-- | arch/microblaze/include/asm/system.h | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/arch/microblaze/include/asm/system.h b/arch/microblaze/include/asm/system.h index 48c4f0335e3f..4f8eaea21f88 100644 --- a/arch/microblaze/include/asm/system.h +++ b/arch/microblaze/include/asm/system.h @@ -45,7 +45,6 @@ extern struct task_struct *_switch_to(struct thread_info *prev, #define smp_rmb() rmb() #define smp_wmb() wmb() -void show_trace(struct task_struct *task, unsigned long *stack); void __bad_xchg(volatile void *ptr, int size); static inline unsigned long __xchg(unsigned long x, volatile void *ptr, |