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| author | Shawn Nematbakhsh <shawnn@chromium.org> | 2015-02-13 15:29:33 -0800 |
|---|---|---|
| committer | ChromeOS Commit Bot <chromeos-commit-bot@chromium.org> | 2015-02-18 04:53:51 +0000 |
| commit | d00847782480e492401ba3bc5a8a8e6f026b08ba (patch) | |
| tree | 01c42b77ba518cf57e7512affcb833f0df61056f /include/panic.h | |
| parent | 9cb03971f6852fa03df3290e44a8451e01774755 (diff) | |
| download | chrome-ec-d00847782480e492401ba3bc5a8a8e6f026b08ba.tar.gz | |
cortex-m*: Save panicinfo on non-exception panics
Make non-exception "software" panics such as stack overflow and assert
failure save a panic log. Log the panic type in r4, and misc. panic data
in r5 so that panic reasons can be distinguished.
BUG=chrome-os-partner:36744
TEST=Manual on samus_pd. Run 'crash divzero' then 'panicinfo' after
reboot. Verify that panic info is printed with "r4 :dead6660". Trigger
stack overflow, verify that panic info is printed with "r4 :dead6661".
BRANCH=Samus
Signed-off-by: Shawn Nematbakhsh <shawnn@chromium.org>
Change-Id: I5f7a8eb0a5c2ac5799d29bb241deb24fabf38f68
Reviewed-on: https://chromium-review.googlesource.com/249912
Tested-by: Alec Berg <alecaberg@chromium.org>
Reviewed-by: Alec Berg <alecaberg@chromium.org>
Diffstat (limited to 'include/panic.h')
| -rw-r--r-- | include/panic.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/include/panic.h b/include/panic.h index 74376554b6..1097029002 100644 --- a/include/panic.h +++ b/include/panic.h @@ -9,6 +9,8 @@ #ifndef __CROS_EC_PANIC_H #define __CROS_EC_PANIC_H +#include "software_panic.h" + #include <stdarg.h> /* ARM Cortex-Mx registers saved on panic */ @@ -120,6 +122,20 @@ void panic(const char *msg); */ void panic_reboot(void); +#ifdef CONFIG_SOFTWARE_PANIC +/** + * Store a panic log and halt the system for a software-related reason, such as + * stack overflow or assertion failure. + */ +void software_panic(uint32_t panic_reason, uint32_t panic_info); + +/** + * Log a watchdog panic in the panic log. Called on the subsequent reboot after + * the watchdog fires. + */ +void panic_log_watchdog(void); +#endif + /** * Enable/disable bus fault handler * |