diff options
Diffstat (limited to 'util/ec_panicinfo.c')
-rw-r--r-- | util/ec_panicinfo.c | 192 |
1 files changed, 0 insertions, 192 deletions
diff --git a/util/ec_panicinfo.c b/util/ec_panicinfo.c deleted file mode 100644 index ad6867fdc9..0000000000 --- a/util/ec_panicinfo.c +++ /dev/null @@ -1,192 +0,0 @@ -/* Copyright 2016 The Chromium OS Authors. All rights reserved. - * Use of this source code is governed by a BSD-style license that can be - * found in the LICENSE file. - */ - -#include <stdint.h> -#include <stdio.h> -#include <string.h> -#include "compile_time_macros.h" - -#include "ec_panicinfo.h" - -static void print_panic_reg(int regnum, const uint32_t *regs, int index) -{ - static const char * const regname[] = { - "r0 ", "r1 ", "r2 ", "r3 ", "r4 ", - "r5 ", "r6 ", "r7 ", "r8 ", "r9 ", - "r10", "r11", "r12", "sp ", "lr ", - "pc "}; - - printf("%s:", regname[regnum]); - if (regs) - printf("%08x", regs[index]); - else - printf(" "); - printf((regnum & 3) == 3 ? "\n" : " "); -} - -static int parse_panic_info_cm(const struct panic_data *pdata) -{ - const uint32_t *lregs = pdata->cm.regs; - const uint32_t *sregs = NULL; - enum { - ORIG_UNKNOWN = 0, - ORIG_PROCESS, - ORIG_HANDLER - } origin = ORIG_UNKNOWN; - int i; - const char *panic_origins[3] = {"", "PROCESS", "HANDLER"}; - - printf("Saved panic data:%s\n", - (pdata->flags & PANIC_DATA_FLAG_OLD_HOSTCMD ? "" : " (NEW)")); - - if (pdata->struct_version == 2) - origin = ((lregs[11] & 0xf) == 1 || (lregs[11] & 0xf) == 9) ? - ORIG_HANDLER : ORIG_PROCESS; - - /* - * In pdata struct, 'regs', which is allocated before 'frame', has - * one less elements in version 1. Therefore, if the data is from - * version 1, shift 'sregs' by one element to align with 'frame' in - * version 1. - */ - if (pdata->flags & PANIC_DATA_FLAG_FRAME_VALID) - sregs = pdata->cm.frame - (pdata->struct_version == 1 ? 1 : 0); - - printf("=== %s EXCEPTION: %02x ====== xPSR: %08x ===\n", - panic_origins[origin], - lregs[1] & 0xff, sregs ? sregs[7] : -1); - for (i = 0; i < 4; ++i) - print_panic_reg(i, sregs, i); - for (i = 4; i < 10; ++i) - print_panic_reg(i, lregs, i - 1); - print_panic_reg(10, lregs, 9); - print_panic_reg(11, lregs, 10); - print_panic_reg(12, sregs, 4); - print_panic_reg(13, lregs, origin == ORIG_HANDLER ? 2 : 0); - print_panic_reg(14, sregs, 5); - print_panic_reg(15, sregs, 6); - - return 0; -} - -static int parse_panic_info_nds32(const struct panic_data *pdata) -{ - const uint32_t *regs = pdata->nds_n8.regs; - uint32_t itype = pdata->nds_n8.itype; - uint32_t ipc = pdata->nds_n8.ipc; - uint32_t ipsw = pdata->nds_n8.ipsw; - - printf("Saved panic data:%s\n", - (pdata->flags & PANIC_DATA_FLAG_OLD_HOSTCMD ? "" : " (NEW)")); - - printf("=== EXCEP: ITYPE=%x ===\n", itype); - printf("R0 %08x R1 %08x R2 %08x R3 %08x\n", - regs[0], regs[1], regs[2], regs[3]); - printf("R4 %08x R5 %08x R6 %08x R7 %08x\n", - regs[4], regs[5], regs[6], regs[7]); - printf("R8 %08x R9 %08x R10 %08x R15 %08x\n", - regs[8], regs[9], regs[10], regs[11]); - printf("FP %08x GP %08x LP %08x SP %08x\n", - regs[12], regs[13], regs[14], regs[15]); - printf("IPC %08x IPSW %05x\n", ipc, ipsw); - printf("SWID of ITYPE: %x\n", ((itype >> 16) & 0x7fff)); - - return 0; -} - -static int parse_panic_info_rv32i(const struct panic_data *pdata) -{ - uint32_t *regs, mcause, mepc; - - regs = (uint32_t *)pdata->riscv.regs; - mcause = pdata->riscv.mcause; - mepc = pdata->riscv.mepc; - - printf("=== EXCEPTION: MCAUSE=%x ===\n", mcause); - printf("S11 %08x S10 %08x S9 %08x S8 %08x\n", - regs[0], regs[1], regs[2], regs[3]); - printf("S7 %08x S6 %08x S5 %08x S4 %08x\n", - regs[4], regs[5], regs[6], regs[7]); - printf("S3 %08x S2 %08x S1 %08x S0 %08x\n", - regs[8], regs[9], regs[10], regs[11]); - printf("T6 %08x T5 %08x T4 %08x T3 %08x\n", - regs[12], regs[13], regs[14], regs[15]); - printf("T2 %08x T1 %08x T0 %08x A7 %08x\n", - regs[16], regs[17], regs[18], regs[19]); - printf("A6 %08x A5 %08x A4 %08x A3 %08x\n", - regs[20], regs[21], regs[22], regs[23]); - printf("A2 %08x A1 %08x A0 %08x TP %08x\n", - regs[24], regs[25], regs[26], regs[27]); - printf("GP %08x RA %08x SP %08x MEPC %08x\n", - regs[28], regs[29], regs[30], mepc); - - return 0; -} - -int parse_panic_info(const char *data, size_t size) -{ - /* Size of the panic information "header". */ - const size_t header_size = 4; - /* Size of the panic information "trailer" (struct_size and magic). */ - const size_t trailer_size = sizeof(struct panic_data) - - offsetof(struct panic_data, struct_size); - - struct panic_data pdata = { 0 }; - size_t copy_size; - - if (size < (header_size + trailer_size)) { - fprintf(stderr, "ERROR: Panic data too short (%zd).\n", size); - return -1; - } - - if (size > sizeof(pdata)) { - fprintf(stderr, "WARNING: Panic data too large (%zd > %zd). " - "Following data may be incorrect!\n", - size, sizeof(pdata)); - copy_size = sizeof(pdata); - } else { - copy_size = size; - } - /* Copy the data into pdata, as the struct size may have changed. */ - memcpy(&pdata, data, copy_size); - /* Then copy the trailer in position. */ - memcpy((char *)&pdata + (sizeof(struct panic_data) - trailer_size), - data + (size - trailer_size), trailer_size); - - /* - * We only understand panic data with version <= 2. Warn the user - * of higher versions. - */ - if (pdata.struct_version > 2) - fprintf(stderr, "WARNING: Unknown panic data version (%d). " - "Following data may be incorrect!\n", - pdata.struct_version); - - /* Validate magic number */ - if (pdata.magic != PANIC_DATA_MAGIC) - fprintf(stderr, "WARNING: Incorrect panic magic (%d). " - "Following data may be incorrect!\n", - pdata.magic); - - if (pdata.struct_size != size) - fprintf(stderr, - "WARNING: Panic struct size inconsistent (%u vs %zd). " - "Following data may be incorrect!\n", - pdata.struct_size, size); - - switch (pdata.arch) { - case PANIC_ARCH_CORTEX_M: - return parse_panic_info_cm(&pdata); - case PANIC_ARCH_NDS32_N8: - return parse_panic_info_nds32(&pdata); - case PANIC_ARCH_RISCV_RV32I: - return parse_panic_info_rv32i(&pdata); - default: - fprintf(stderr, "ERROR: Unknown architecture (%d).\n", - pdata.arch); - break; - } - return -1; -} |