I am trying to get the interrupt handling going on the AM3517 Cortex A8. I have laid out the ARM_Vectors using the scatter file at the addresses specified by the manual. But, when the code crashed on GDB instead of going into one of these handlers
it shows me something like this 0x00014010 in ?? ()
I am attaching the disassembly for the section in question. Can someone help me out here ??
Disassembly of section ER_RAM_RO:
4020ffc0 <ARM_Vectors>:
4020ffc0: baadf00d blt 3ed8bffc <SRAM_OFFSET1+0x3eb8bffc>
4020ffc4 <RESET_VECTOR>:
PAD_VECTOR:
.word 0xbaadf00d
@ RESET
RESET_VECTOR:
b UNDEF_VECTOR
4020ffc4: eaffffff b 4020ffc8 <UNDEF_VECTOR>
4020ffc8 <UNDEF_VECTOR>:
@ UNDEF INSTR
UNDEF_VECTOR:
ldr pc, UNDEF_SubHandler_Trampoline
4020ffc8: e59ff010 ldr pc, [pc, #16] ; 4020ffe0 <UNDEF_SubHandler_Trampoline>
4020ffcc <SWI_VECTOR>:
4020ffcc: baadf00d blt 3ed8c008 <SRAM_OFFSET1+0x3eb8c008>
4020ffd0 <PREFETCH_VECTOR>:
SWI_VECTOR:
.word 0xbaadf00d
@ PREFETCH ABORT
PREFETCH_VECTOR:
ldr pc, ABORTP_SubHandler_Trampoline
4020ffd0: e59ff00c ldr pc, [pc, #12] ; 4020ffe4 <ABORTP_SubHandler_Trampoline>
4020ffd4 <DATA_VECTOR>:
@ DATA ABORT
DATA_VECTOR:
ldr pc, ABORTD_SubHandler_Trampoline
4020ffd4: e59ff00c ldr pc, [pc, #12] ; 4020ffe8 <ABORTD_SubHandler_Trampoline>
4020ffd8 <USED_VECTOR>:
4020ffd8: baadf00d blt 3ed8c014 <SRAM_OFFSET1+0x3eb8c014>
4020ffdc <IRQ_VECTOR>:
USED_VECTOR:
.word 0xbaadf00d
@ IRQ
IRQ_VECTOR:
ldr pc, IRQ_SubHandler_Trampoline
4020ffdc: e59ff008 ldr pc, [pc, #8] ; 4020ffec <IRQ_SubHandler_Trampoline>
4020ffe0 <UNDEF_SubHandler_Trampoline>:
4020ffe0: 803007cc eorshi r0, r0, ip, asr #15
4020ffe4 <ABORTP_SubHandler_Trampoline>:
4020ffe4: 80300810 eorshi r0, r0, r0, lsl r8
4020ffe8 <ABORTD_SubHandler_Trampoline>:
4020ffe8: 80300854 eorshi r0, r0, r4, asr r8
4020ffec <IRQ_SubHandler_Trampoline>:
4020ffec: 80300790 mlashi r0, r0, r7, r0
Thanks