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Add a routine to debug ARM exceptions in GDB

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Romain Goyet
2018-05-14 21:21:04 +02:00
committed by EmilieNumworks
parent 31801ac20c
commit 7610d7b65d
1 changed files with 25 additions and 0 deletions
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25
build/device/gdb_script.gdb
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@@ -1,3 +1,28 @@
# Add a routine to debug ARM exceptions
define armex
printf "SCB_CFSR 0x%x\n", *0xE000ED28
printf "SCB_HFSR 0x%x\n", *0xE000ED2C
printf "SCB_HFSR 0x%x\n", *0xE000ED2C
printf "SCB_MMAR 0x%x\n", *0xE000ED34
printf "SCB_BFAR 0x%x\n", *0xE000ED38
printf "xPSR 0x%x\n", *(int *)($msp+28)
printf "ReturnAddress 0x%x\n", *(int *)($msp+24)
printf "LR (R14) 0x%x\n", *(int *)($msp+20)
printf "R12 0x%x\n", *(int *)($msp+16)
printf "R3 0x%x\n", *(int *)($msp+12)
printf "R2 0x%x\n", *(int *)($msp+8)
printf "R1 0x%x\n", *(int *)($msp+4)
printf "R0 0x%x\n", *(int *)($msp)
printf "Return instruction:\n"
x/i *(int *)($msp+24)
end
document armex
ARMv7 Exception entry behavior.
xPSR, ReturnAddress, LR (R14), R12, R3, R2, R1, and R0
end
# Let's connect to OpenOCD
target remote localhost:3333