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Rather than just reset the board, report assertion failures to aid debugging. To enable this, use CONFIG_ASSERT_HELP. BUG=chrome-os-partner:10149 TEST=manual Enable the option for snow, add a failing ASSERT() to the rw command and see the a nice message is printed now. ASSERTION FAILURE 'address' in command_read_word() at common/memory_commands.c:00000037 Change-Id: Ice59434c5daf610832dd0e1fcfa5630dc847bb67 Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-on: https://gerrit.chromium.org/gerrit/25411
63 lines
1.9 KiB
Plaintext
63 lines
1.9 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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- CONFIG_PANIC_HELP
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Report extra information about a panic, such as the fault address,
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here shown as bfar. This shows the reason for the fault and may help
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to determine the cause.
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=== EXCEPTION: 03 ====== xPSR: 01000000 ===========
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r0 :0000000b r1 :00000047 r2 :60000000 r3 :200013dd
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r4 :00000000 r5 :080053f4 r6 :200013d0 r7 :00000002
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r8 :00000000 r9 :200013de r10:00000000 r11:00000000
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r12:00000000 sp :200009a0 lr :08002b85 pc :08003a8a
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Precise data bus error, Forced hard fault, Vector catch, bfar = 60000000
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mmfs = 00008200, shcsr = 00000000, hfsr = 40000000, dfsr = 00000008
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- CONFIG_ASSERT_HELP
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Report assertion failures in a vebose manner to aid debugging. When
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enabled an ASSERT() which fails will produce message in the form:
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ASSERTION FAILURE '<expr>' in function() at file:line
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