diff options
Diffstat (limited to 'cpu/mpc86xx/traps.c')
| -rw-r--r-- | cpu/mpc86xx/traps.c | 89 |
1 files changed, 32 insertions, 57 deletions
diff --git a/cpu/mpc86xx/traps.c b/cpu/mpc86xx/traps.c index 8113dfb..8ea14e5 100644 --- a/cpu/mpc86xx/traps.c +++ b/cpu/mpc86xx/traps.c @@ -57,21 +57,22 @@ print_backtrace(unsigned long *sp) printf("Call backtrace: "); while (sp) { - if ((uint)sp > END_OF_MEM) + if ((uint) sp > END_OF_MEM) break; i = sp[1]; if (cnt++ % 7 == 0) printf("\n"); printf("%08lX ", i); - if (cnt > 32) break; + if (cnt > 32) + break; sp = (unsigned long *)*sp; } printf("\n"); } void -show_regs(struct pt_regs * regs) +show_regs(struct pt_regs *regs) { int i; @@ -80,21 +81,19 @@ show_regs(struct pt_regs * regs) regs->nip, regs->xer, regs->link, regs, regs->trap, regs->dar); printf("MSR: %08lx EE: %01x PR: %01x FP:" " %01x ME: %01x IR/DR: %01x%01x\n", - regs->msr, regs->msr&MSR_EE ? 1 : 0, regs->msr&MSR_PR ? 1 : 0, - regs->msr & MSR_FP ? 1 : 0,regs->msr&MSR_ME ? 1 : 0, - regs->msr&MSR_IR ? 1 : 0, - regs->msr&MSR_DR ? 1 : 0); + regs->msr, regs->msr & MSR_EE ? 1 : 0, + regs->msr & MSR_PR ? 1 : 0, regs->msr & MSR_FP ? 1 : 0, + regs->msr & MSR_ME ? 1 : 0, regs->msr & MSR_IR ? 1 : 0, + regs->msr & MSR_DR ? 1 : 0); printf("\n"); - for (i = 0; i < 32; i++) { - if ((i % 8) == 0) - { + for (i = 0; i < 32; i++) { + if ((i % 8) == 0) { printf("GPR%02d: ", i); } printf("%08lX ", regs->gpr[i]); - if ((i % 8) == 7) - { + if ((i % 8) == 7) { printf("\n"); } } @@ -106,7 +105,7 @@ _exception(int signr, struct pt_regs *regs) { show_regs(regs); print_backtrace((unsigned long *)regs->gpr[1]); - panic("Exception in kernel pc %lx signal %d",regs->nip,signr); + panic("Exception in kernel pc %lx signal %d", regs->nip, signr); } void @@ -124,25 +123,25 @@ MachineCheckException(struct pt_regs *regs) } #if (CONFIG_COMMANDS & CFG_CMD_KGDB) - if (debugger_exception_handler && (*debugger_exception_handler)(regs)) + if (debugger_exception_handler && (*debugger_exception_handler) (regs)) return; #endif printf("Machine check in kernel mode.\n"); printf("Caused by (from msr): "); - printf("regs %p ",regs); - switch( regs->msr & 0x000F0000) { - case (0x80000000>>12): + printf("regs %p ", regs); + switch (regs->msr & 0x000F0000) { + case (0x80000000 >> 12): printf("Machine check signal - probably due to mm fault\n" - "with mmu off\n"); + "with mmu off\n"); break; - case (0x80000000>>13): + case (0x80000000 >> 13): printf("Transfer error ack signal\n"); break; - case (0x80000000>>14): + case (0x80000000 >> 14): printf("Data parity signal\n"); break; - case (0x80000000>>15): + case (0x80000000 >> 15): printf("Address parity signal\n"); break; default: @@ -157,7 +156,7 @@ void AlignmentException(struct pt_regs *regs) { #if (CONFIG_COMMANDS & CFG_CMD_KGDB) - if (debugger_exception_handler && (*debugger_exception_handler)(regs)) + if (debugger_exception_handler && (*debugger_exception_handler) (regs)) return; #endif show_regs(regs); @@ -172,17 +171,17 @@ ProgramCheckException(struct pt_regs *regs) int i, j; #if (CONFIG_COMMANDS & CFG_CMD_KGDB) - if (debugger_exception_handler && (*debugger_exception_handler)(regs)) + if (debugger_exception_handler && (*debugger_exception_handler) (regs)) return; #endif show_regs(regs); - p = (unsigned char *) ((unsigned long)p & 0xFFFFFFE0); + p = (unsigned char *)((unsigned long)p & 0xFFFFFFE0); p -= 32; - for (i = 0; i < 256; i+=16) { - printf("%08x: ", (unsigned int)p+i); + for (i = 0; i < 256; i += 16) { + printf("%08x: ", (unsigned int)p + i); for (j = 0; j < 16; j++) { - printf("%02x ", p[i+j]); + printf("%02x ", p[i + j]); } printf("\n"); } @@ -195,7 +194,7 @@ void SoftEmuException(struct pt_regs *regs) { #if (CONFIG_COMMANDS & CFG_CMD_KGDB) - if (debugger_exception_handler && (*debugger_exception_handler)(regs)) + if (debugger_exception_handler && (*debugger_exception_handler) (regs)) return; #endif show_regs(regs); @@ -203,12 +202,11 @@ SoftEmuException(struct pt_regs *regs) panic("Software Emulation Exception"); } - void UnknownException(struct pt_regs *regs) { #if (CONFIG_COMMANDS & CFG_CMD_KGDB) - if (debugger_exception_handler && (*debugger_exception_handler)(regs)) + if (debugger_exception_handler && (*debugger_exception_handler) (regs)) return; #endif printf("Bad trap at PC: %lx, SR: %lx, vector=%lx\n", @@ -216,36 +214,13 @@ UnknownException(struct pt_regs *regs) _exception(0, regs); } -/* Probe an address by reading. If not present, return -1, otherwise - * return 0. +/* + * Probe an address by reading. + * If not present, return -1, + * otherwise return 0. */ int addr_probe(uint *addr) { -#if 0 - int retval; - - __asm__ __volatile__( \ - "1: lwz %0,0(%1)\n" \ - " eieio\n" \ - " li %0,0\n" \ - "2:\n" \ - ".section .fixup,\"ax\"\n" \ - "3: li %0,-1\n" \ - " b 2b\n" \ - ".section __ex_table,\"a\"\n" \ - " .align 2\n" \ - " .long 1b,3b\n" \ - ".text" \ - : "=r" (retval) : "r"(addr)); - - return (retval); -#endif return 0; } - - - - - - |