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8c55761613
For particularly nasty errors the stack or stack pointer may be corrupt, or in a place that we do not want overwritten. Provide and option to place the stack in a fresh place, assuming you can reach exception_panic(). Note that exception_panic() does not write anything to stack itself. BUG=chrome-os-partner:10146 TEST=manual: build for all boards On snow, cause a panic and see that it is reported correctly. Change-Id: I21d8b9bb12455758309d54ef20de66640d8a2df6 Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-on: https://gerrit.chromium.org/gerrit/24504
42 lines
1.1 KiB
Plaintext
42 lines
1.1 KiB
Plaintext
- EC Lib
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This wraps Blizzard driverlib and implements the EC chip interface defined
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by Google. See below diagram for architecture.
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+--------------------+
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| Host BIOS/OS |
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+--------------------+
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---- host interface ----
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+--------------------+
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| Google EC features |
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+--------------------+
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---- chip interface ---- The interface is defined in
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src/platform/ec/chip_interface/*.
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+--------------------+ But the real implementation is in EC Lib.
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| EC Lib |
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+--------------------+
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| Blizzard low level |
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| driver, the |
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| driverlib. |
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+--------------------+
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Build Options
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=============
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- CONFIG_WATCHDOG_HELP
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Try to detect a watchdog that is about to fire, and print a trace.
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This is needed on STM32, where the independent watchdog has no early
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warning feature and the windowed watchdog has a very short period.
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- CONFIG_PANIC_NEW_STACK
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When reporting a panic, change to a completely new stack. This might
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help get a useful trace out a situation where the stack or stack
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pointer has been corrupted.
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