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authorJack Rosenthal <jrosenth@chromium.org>2021-11-04 12:11:58 -0600
committerCommit Bot <commit-bot@chromium.org>2021-11-05 04:22:34 +0000
commit252457d4b21f46889eebad61d4c0a65331919cec (patch)
tree01856c4d31d710b20e85a74c8d7b5836e35c3b98 /util/ec_panicinfo.c
parent08f5a1e6fc2c9467230444ac9b582dcf4d9f0068 (diff)
downloadchrome-ec-stabilize-14388.62.B-ish.tar.gz
In the interest of making long-term branch maintenance incur as little technical debt on us as possible, we should not maintain any files on the branch we are not actually using. This has the added effect of making it extremely clear when merging CLs from the main branch when changes have the possibility to affect us. The follow-on CL adds a convenience script to actually pull updates from the main branch and generate a CL for the update. BUG=b:204206272 BRANCH=ish TEST=make BOARD=arcada_ish && make BOARD=drallion_ish Signed-off-by: Jack Rosenthal <jrosenth@chromium.org> Change-Id: I17e4694c38219b5a0823e0a3e55a28d1348f4b18 Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/3262038 Reviewed-by: Jett Rink <jettrink@chromium.org> Reviewed-by: Tom Hughes <tomhughes@chromium.org>
Diffstat (limited to 'util/ec_panicinfo.c')
-rw-r--r--util/ec_panicinfo.c192
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;
-}