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https://github.com/UpsilonNumworks/Upsilon.git
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54 lines
1.5 KiB
Plaintext
54 lines
1.5 KiB
Plaintext
# Add a routine to debug ARM exceptions
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define armex
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printf "SCB_CFSR 0x%x\n", *0xE000ED28
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printf "SCB_HFSR 0x%x\n", *0xE000ED2C
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printf "SCB_MMAR 0x%x\n", *0xE000ED34
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printf "SCB_BFAR 0x%x\n", *0xE000ED38
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printf "xPSR 0x%x\n", *(int *)($msp+28)
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printf "ReturnAddress 0x%x\n", *(int *)($msp+24)
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printf "LR (R14) 0x%x\n", *(int *)($msp+20)
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printf "R12 0x%x\n", *(int *)($msp+16)
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printf "R3 0x%x\n", *(int *)($msp+12)
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printf "R2 0x%x\n", *(int *)($msp+8)
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printf "R1 0x%x\n", *(int *)($msp+4)
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printf "R0 0x%x\n", *(int *)($msp)
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printf "Return instruction:\n"
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x/i *(int *)($msp+24)
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end
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define load_isr
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set $sp = *(InitialisationVector)
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# Warning: InitialisationVector is a uint32_t*, so InitialisationVector+1 points to the next 32-bit value
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set $pc = *(InitialisationVector+1)
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end
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define use_dfu_symbol_file
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# Discard previous symbol file
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symbol-file
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# Load new symbol file
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add-symbol-file build/debug/device/ion/src/device/shared/usb/dfu.elf 0x20038000
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end
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document armex
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ARMv7 Exception entry behavior.
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xPSR, ReturnAddress, LR (R14), R12, R3, R2, R1, and R0
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end
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# Let's connect to OpenOCD
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target remote localhost:3333
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# GDB pagniation is annoying
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set pagination off
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# Load our executable
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load
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# Tell OpenOCD to reset and halt
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# monitor itm ports on
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# monitor tpiu config internal swo.log.bin uart off 16000000
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# monitor reset halt
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# continue
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