ba85c82fbb
This is very useful for debugging. It differentiates between a stack overflow and other errors (because it's easy to see when a stack overflow occurs) and prints the old stack pointer and program counter if available.
21 строка
690 Б
ArmAsm
21 строка
690 Б
ArmAsm
.syntax unified
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.section .text.HardFault_Handler
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.global HardFault_Handler
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.type HardFault_Handler, %function
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HardFault_Handler:
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// Put the old stack pointer in the first argument, for easy debugging. This
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// is especially useful on Cortex-M0, which supports far fewer debug
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// facilities.
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mov r0, sp
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// Load the default stack pointer from address 0 so that we can call normal
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// functions again that expect a working stack. However, it will corrupt the
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// old stack so the function below must not attempt to recover from this
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// fault.
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movs r3, #0
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ldr r3, [r3]
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mov sp, r3
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// Continue handling this error in Go.
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bl handleHardFault
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