a73b93157f
It encourages users from writing to the FSF without giving an address. Linux also prefers to drop that and their checkpatch.pl (that we imported) looks out for that. This is the result of util/scripts/no-fsf-addresses.sh with no further editing. Change-Id: Ie96faea295fe001911d77dbc51e9a6789558fbd6 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Reviewed-on: http://review.coreboot.org/11888 Tested-by: build bot (Jenkins) Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com> Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
103 lines
3.7 KiB
C
103 lines
3.7 KiB
C
/*
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* This file is part of the libpayload project.
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*
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* Copyright (C) 2014 Imagination Technologies
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <arch/exception.h>
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#include <exception.h>
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#include <libpayload.h>
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#include <stdint.h>
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u32 exception_stack[0x400] __attribute__((aligned(8)));
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struct exception_state_t exception_state;
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static const char *names[EXC_COUNT] = {
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[EXC_CACHE_ERROR] = "Cache error exception",
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[EXC_TLB_REFILL_AND_ALL] = "TLB refill or general exception",
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[EXC_INTERRUPT] = "Interrupt",
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[EXC_EJTAG_DEBUG] = "EJTAG debug exception"
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};
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static void dump_exception_state(void)
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{
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printf("%s exception!\n", names[exception_state_ptr->vector]);
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printf("\nRegisters:\n");
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printf("ZERO:\t0x%08x\n", exception_state_ptr->regs.zero);
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printf("AT:\t0x%08x\n", exception_state_ptr->regs.at);
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printf("V0:\t0x%08x\n", exception_state_ptr->regs.v0);
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printf("V1:\t0x%08x\n", exception_state_ptr->regs.v1);
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printf("A0:\t0x%08x\n", exception_state_ptr->regs.a0);
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printf("A1:\t0x%08x\n", exception_state_ptr->regs.a1);
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printf("A2:\t0x%08x\n", exception_state_ptr->regs.a2);
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printf("A3:\t0x%08x\n", exception_state_ptr->regs.a3);
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printf("T0:\t0x%08x\n", exception_state_ptr->regs.t0);
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printf("T1:\t0x%08x\n", exception_state_ptr->regs.t1);
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printf("T2:\t0x%08x\n", exception_state_ptr->regs.t2);
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printf("T3:\t0x%08x\n", exception_state_ptr->regs.t3);
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printf("T4:\t0x%08x\n", exception_state_ptr->regs.t4);
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printf("T5:\t0x%08x\n", exception_state_ptr->regs.t5);
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printf("T6:\t0x%08x\n", exception_state_ptr->regs.t6);
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printf("T7:\t0x%08x\n", exception_state_ptr->regs.t7);
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printf("S0:\t0x%08x\n", exception_state_ptr->regs.s0);
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printf("S1:\t0x%08x\n", exception_state_ptr->regs.s1);
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printf("S2:\t0x%08x\n", exception_state_ptr->regs.s2);
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printf("S3:\t0x%08x\n", exception_state_ptr->regs.s3);
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printf("S4:\t0x%08x\n", exception_state_ptr->regs.s4);
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printf("S5:\t0x%08x\n", exception_state_ptr->regs.s5);
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printf("S6:\t0x%08x\n", exception_state_ptr->regs.s6);
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printf("S7:\t0x%08x\n", exception_state_ptr->regs.s7);
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printf("T8:\t0x%08x\n", exception_state_ptr->regs.t8);
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printf("T9:\t0x%08x\n", exception_state_ptr->regs.t9);
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printf("K0:\t0x%08x\n", exception_state_ptr->regs.k0);
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printf("K1:\t0x%08x\n", exception_state_ptr->regs.k1);
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printf("GP:\t0x%08x\n", exception_state_ptr->regs.gp);
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printf("SP:\t0x%08x\n", exception_state_ptr->regs.sp);
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printf("FP:\t0x%08x\n", exception_state_ptr->regs.fp);
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printf("RA:\t0x%08x\n", exception_state_ptr->regs.ra);
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}
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static void dump_stack(uintptr_t addr, size_t bytes)
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{
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int i, j;
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const int words_per_line = 8;
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int words_to_print;
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uint32_t *ptr = (uint32_t *)
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(addr & ~(words_per_line * sizeof(*ptr) - 1));
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printf("Dumping stack:\n");
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words_to_print = bytes/sizeof(*ptr);
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for (i = words_to_print; i >= 0; i -= words_per_line) {
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printf("%p: ", ptr + i);
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for (j = i; j < i + words_per_line; j++)
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printf("%08x ", *(ptr + j));
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printf("\n");
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}
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}
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void exception_dispatch(void)
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{
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u32 vec = exception_state_ptr->vector;
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die_if(vec >= EXC_COUNT || !names[vec], "Bad exception vector %u", vec);
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dump_exception_state();
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dump_stack(exception_state_ptr->regs.sp, 512);
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halt();
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}
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void exception_init(void)
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{
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exception_stack_end = exception_stack + ARRAY_SIZE(exception_stack);
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exception_state_ptr = &exception_state;
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exception_init_asm();
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}
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