esp32: ReformatReformat panic.c (remove tabs, etc)
This commit is contained in:
Angus Gratton
parent
20fd57f147
commit
b98405f9d9
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@ -34,46 +34,58 @@
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#include "esp_attr.h"
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/*
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Panic handlers; these get called when an unhandled exception occurs or the assembly-level
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task switching / interrupt code runs into an unrecoverable error. The default task stack
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overflow handler also is in here.
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Panic handlers; these get called when an unhandled exception occurs or the assembly-level
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task switching / interrupt code runs into an unrecoverable error. The default task stack
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overflow handler also is in here.
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*/
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/*
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Note: The linker script will put everything in this file in IRAM/DRAM, so it also works with flash cache disabled.
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Note: The linker script will put everything in this file in IRAM/DRAM, so it also works with flash cache disabled.
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*/
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#if !CONFIG_ESP32_PANIC_SILENT_REBOOT
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//printf may be broken, so we fix our own printing fns...
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inline static void panicPutChar(char c) {
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while (((READ_PERI_REG(UART_STATUS_REG(0))>>UART_TXFIFO_CNT_S)&UART_TXFIFO_CNT)>=126) ;
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WRITE_PERI_REG(UART_FIFO_REG(0), c);
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inline static void panicPutChar(char c)
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{
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while (((READ_PERI_REG(UART_STATUS_REG(0)) >> UART_TXFIFO_CNT_S)&UART_TXFIFO_CNT) >= 126) ;
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WRITE_PERI_REG(UART_FIFO_REG(0), c);
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}
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inline static void panicPutStr(const char *c) {
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int x=0;
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while (c[x]!=0) {
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panicPutChar(c[x]);
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x++;
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}
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inline static void panicPutStr(const char *c)
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{
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int x = 0;
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while (c[x] != 0) {
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panicPutChar(c[x]);
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x++;
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}
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}
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inline static void panicPutHex(int a) {
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int x;
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int c;
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for (x=0; x<8; x++) {
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c=(a>>28)&0xf;
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if (c<10) panicPutChar('0'+c); else panicPutChar('a'+c-10);
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a<<=4;
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}
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inline static void panicPutHex(int a)
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{
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int x;
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int c;
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for (x = 0; x < 8; x++) {
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c = (a >> 28) & 0xf;
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if (c < 10) {
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panicPutChar('0' + c);
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} else {
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panicPutChar('a' + c - 10);
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}
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a <<= 4;
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}
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}
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inline static void panicPutDec(int a) {
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int n1, n2;
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n1=a%10;
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n2=a/10;
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if (n2==0) panicPutChar(' '); else panicPutChar(n2+'0');
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panicPutChar(n1+'0');
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inline static void panicPutDec(int a)
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{
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int n1, n2;
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n1 = a % 10;
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n2 = a / 10;
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if (n2 == 0) {
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panicPutChar(' ');
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} else {
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panicPutChar(n2 + '0');
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}
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panicPutChar(n1 + '0');
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}
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#else
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//No printing wanted. Stub out these functions.
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@ -84,25 +96,26 @@ inline static void panicPutDec(int a) { }
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#endif
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void __attribute__((weak)) vApplicationStackOverflowHook( TaskHandle_t xTask, signed char *pcTaskName ) {
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panicPutStr("***ERROR*** A stack overflow in task ");
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panicPutStr((char*)pcTaskName);
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panicPutStr(" has been detected.\r\n");
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configASSERT(0);
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void __attribute__((weak)) vApplicationStackOverflowHook( TaskHandle_t xTask, signed char *pcTaskName )
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{
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panicPutStr("***ERROR*** A stack overflow in task ");
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panicPutStr((char *)pcTaskName);
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panicPutStr(" has been detected.\r\n");
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configASSERT(0);
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}
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static const char *edesc[]={
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"IllegalInstruction", "Syscall", "InstructionFetchError", "LoadStoreError",
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"Level1Interrupt", "Alloca", "IntegerDivideByZero", "PCValue",
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"Privileged", "LoadStoreAlignment", "res", "res",
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"InstrPDAddrError", "LoadStorePIFDataError", "InstrPIFAddrError", "LoadStorePIFAddrError",
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"InstTLBMiss", "InstTLBMultiHit", "InstFetchPrivilege", "res",
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"InstrFetchProhibited", "res", "res", "res",
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"LoadStoreTLBMiss", "LoadStoreTLBMultihit", "LoadStorePrivilege", "res",
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"LoadProhibited", "StoreProhibited", "res", "res",
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"Cp0Dis", "Cp1Dis", "Cp2Dis", "Cp3Dis",
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"Cp4Dis", "Cp5Dis", "Cp6Dis", "Cp7Dis"
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};
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static const char *edesc[] = {
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"IllegalInstruction", "Syscall", "InstructionFetchError", "LoadStoreError",
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"Level1Interrupt", "Alloca", "IntegerDivideByZero", "PCValue",
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"Privileged", "LoadStoreAlignment", "res", "res",
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"InstrPDAddrError", "LoadStorePIFDataError", "InstrPIFAddrError", "LoadStorePIFAddrError",
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"InstTLBMiss", "InstTLBMultiHit", "InstFetchPrivilege", "res",
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"InstrFetchProhibited", "res", "res", "res",
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"LoadStoreTLBMiss", "LoadStoreTLBMultihit", "LoadStorePrivilege", "res",
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"LoadProhibited", "StoreProhibited", "res", "res",
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"Cp0Dis", "Cp1Dis", "Cp2Dis", "Cp3Dis",
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"Cp4Dis", "Cp5Dis", "Cp6Dis", "Cp7Dis"
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};
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void commonErrorHandler(XtExcFrame *frame);
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@ -115,191 +128,219 @@ static void haltOtherCore()
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}
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//Returns true when a debugger is attached using JTAG.
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static int inOCDMode() {
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static int inOCDMode()
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{
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#if CONFIG_ESP32_DEBUG_OCDAWARE
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int dcr;
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int reg=0x10200C; //DSRSET register
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asm("rer %0,%1":"=r"(dcr):"r"(reg));
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return (dcr&0x1);
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int dcr;
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int reg = 0x10200C; //DSRSET register
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asm("rer %0,%1":"=r"(dcr):"r"(reg));
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return (dcr & 0x1);
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#else
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return 0; //Always return no debugger is attached.
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return 0; //Always return no debugger is attached.
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#endif
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}
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void panicHandler(XtExcFrame *frame) {
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int *regs=(int*)frame;
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//Please keep in sync with PANIC_RSN_* defines
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const char *reasons[]={
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"Unknown reason",
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"Unhandled debug exception",
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"Double exception",
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"Unhandled kernel exception",
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"Coprocessor exception",
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"Interrupt wdt timeout on CPU0",
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"Interrupt wdt timeout on CPU1",
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};
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const char *reason=reasons[0];
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//The panic reason is stored in the EXCCAUSE register.
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if (regs[20]<=PANIC_RSN_MAX) reason=reasons[regs[20]];
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haltOtherCore();
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panicPutStr("Guru Meditation Error: Core ");
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panicPutDec(xPortGetCoreID());
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panicPutStr(" panic'ed (");
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panicPutStr(reason);
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panicPutStr(")\r\n");
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void panicHandler(XtExcFrame *frame)
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{
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int *regs = (int *)frame;
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//Please keep in sync with PANIC_RSN_* defines
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const char *reasons[] = {
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"Unknown reason",
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"Unhandled debug exception",
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"Double exception",
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"Unhandled kernel exception",
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"Coprocessor exception",
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"Interrupt wdt timeout on CPU0",
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"Interrupt wdt timeout on CPU1",
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};
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const char *reason = reasons[0];
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//The panic reason is stored in the EXCCAUSE register.
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if (regs[20] <= PANIC_RSN_MAX) {
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reason = reasons[regs[20]];
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}
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haltOtherCore();
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panicPutStr("Guru Meditation Error: Core ");
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panicPutDec(xPortGetCoreID());
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panicPutStr(" panic'ed (");
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panicPutStr(reason);
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panicPutStr(")\r\n");
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if (inOCDMode()) {
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asm("break.n 1");
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}
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commonErrorHandler(frame);
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if (inOCDMode()) {
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asm("break.n 1");
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}
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commonErrorHandler(frame);
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}
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static void setFirstBreakpoint(uint32_t pc) {
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asm(
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"wsr.ibreaka0 %0\n" \
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"rsr.ibreakenable a3\n" \
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"movi a4,1\n" \
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"or a4, a4, a3\n" \
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"wsr.ibreakenable a4\n" \
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::"r"(pc):"a3","a4");
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static void setFirstBreakpoint(uint32_t pc)
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{
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asm(
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"wsr.ibreaka0 %0\n" \
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"rsr.ibreakenable a3\n" \
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"movi a4,1\n" \
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"or a4, a4, a3\n" \
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"wsr.ibreakenable a4\n" \
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::"r"(pc):"a3", "a4");
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}
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void xt_unhandled_exception(XtExcFrame *frame) {
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int *regs=(int*)frame;
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int x;
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void xt_unhandled_exception(XtExcFrame *frame)
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{
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int *regs = (int *)frame;
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int x;
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haltOtherCore();
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panicPutStr("Guru Meditation Error of type ");
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x=regs[20];
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if (x<40) panicPutStr(edesc[x]); else panicPutStr("Unknown");
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panicPutStr(" occurred on core ");
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panicPutDec(xPortGetCoreID());
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if (inOCDMode()) {
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panicPutStr(" at pc=");
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panicPutHex(regs[1]);
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panicPutStr(". Setting bp and returning..\r\n");
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//Stick a hardware breakpoint on the address the handler returns to. This way, the OCD debugger
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//will kick in exactly at the context the error happened.
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setFirstBreakpoint(regs[1]);
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return;
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}
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panicPutStr(". Exception was unhandled.\r\n");
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commonErrorHandler(frame);
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haltOtherCore();
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panicPutStr("Guru Meditation Error of type ");
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x = regs[20];
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if (x < 40) {
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panicPutStr(edesc[x]);
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} else {
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panicPutStr("Unknown");
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}
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panicPutStr(" occurred on core ");
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panicPutDec(xPortGetCoreID());
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if (inOCDMode()) {
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panicPutStr(" at pc=");
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panicPutHex(regs[1]);
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panicPutStr(". Setting bp and returning..\r\n");
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//Stick a hardware breakpoint on the address the handler returns to. This way, the OCD debugger
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//will kick in exactly at the context the error happened.
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setFirstBreakpoint(regs[1]);
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return;
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}
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panicPutStr(". Exception was unhandled.\r\n");
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commonErrorHandler(frame);
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}
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/*
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If watchdogs are enabled, the panic handler runs the risk of getting aborted pre-emptively because
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an overzealous watchdog decides to reset it. On the other hand, if we disable all watchdogs, we run
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the risk of somehow halting in the panic handler and not resetting. That is why this routine kills
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all watchdogs except the timer group 0 watchdog, and it reconfigures that to reset the chip after
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one second.
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If watchdogs are enabled, the panic handler runs the risk of getting aborted pre-emptively because
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an overzealous watchdog decides to reset it. On the other hand, if we disable all watchdogs, we run
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the risk of somehow halting in the panic handler and not resetting. That is why this routine kills
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all watchdogs except the timer group 0 watchdog, and it reconfigures that to reset the chip after
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one second.
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*/
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static void reconfigureAllWdts() {
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TIMERG0.wdt_wprotect=TIMG_WDT_WKEY_VALUE;
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TIMERG0.wdt_feed=1;
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TIMERG0.wdt_config0.sys_reset_length=7; //3.2uS
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TIMERG0.wdt_config0.cpu_reset_length=7; //3.2uS
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TIMERG0.wdt_config0.stg0=TIMG_WDT_STG_SEL_RESET_SYSTEM; //1st stage timeout: reset system
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TIMERG0.wdt_config1.clk_prescale=80*500; //Prescaler: wdt counts in ticks of 0.5mS
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TIMERG0.wdt_config2=2000; //1 second before reset
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TIMERG0.wdt_config0.en=1;
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TIMERG0.wdt_wprotect=0;
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//Disable wdt 1
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TIMERG1.wdt_wprotect=TIMG_WDT_WKEY_VALUE;
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TIMERG1.wdt_config0.en=0;
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TIMERG1.wdt_wprotect=0;
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static void reconfigureAllWdts()
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{
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TIMERG0.wdt_wprotect = TIMG_WDT_WKEY_VALUE;
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TIMERG0.wdt_feed = 1;
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TIMERG0.wdt_config0.sys_reset_length = 7; //3.2uS
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TIMERG0.wdt_config0.cpu_reset_length = 7; //3.2uS
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TIMERG0.wdt_config0.stg0 = TIMG_WDT_STG_SEL_RESET_SYSTEM; //1st stage timeout: reset system
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TIMERG0.wdt_config1.clk_prescale = 80 * 500; //Prescaler: wdt counts in ticks of 0.5mS
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TIMERG0.wdt_config2 = 2000; //1 second before reset
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TIMERG0.wdt_config0.en = 1;
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TIMERG0.wdt_wprotect = 0;
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//Disable wdt 1
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TIMERG1.wdt_wprotect = TIMG_WDT_WKEY_VALUE;
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TIMERG1.wdt_config0.en = 0;
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TIMERG1.wdt_wprotect = 0;
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}
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#if CONFIG_ESP32_PANIC_GDBSTUB || CONFIG_ESP32_PANIC_PRINT_HALT
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/*
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This disables all the watchdogs for when we call the gdbstub.
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This disables all the watchdogs for when we call the gdbstub.
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*/
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static void disableAllWdts() {
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TIMERG0.wdt_wprotect=TIMG_WDT_WKEY_VALUE;
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TIMERG0.wdt_config0.en=0;
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TIMERG0.wdt_wprotect=0;
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TIMERG1.wdt_wprotect=TIMG_WDT_WKEY_VALUE;
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TIMERG1.wdt_config0.en=0;
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TIMERG0.wdt_wprotect=0;
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static void disableAllWdts()
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{
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TIMERG0.wdt_wprotect = TIMG_WDT_WKEY_VALUE;
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TIMERG0.wdt_config0.en = 0;
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TIMERG0.wdt_wprotect = 0;
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TIMERG1.wdt_wprotect = TIMG_WDT_WKEY_VALUE;
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TIMERG1.wdt_config0.en = 0;
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TIMERG0.wdt_wprotect = 0;
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}
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#endif
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static inline bool stackPointerIsSane(uint32_t sp) {
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return !(sp < 0x3ffae010 || sp > 0x3ffffff0 || ((sp & 0xf) != 0));
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static inline bool stackPointerIsSane(uint32_t sp)
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{
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return !(sp < 0x3ffae010 || sp > 0x3ffffff0 || ((sp & 0xf) != 0));
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}
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static void putEntry(uint32_t pc, uint32_t sp) {
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if (pc & 0x80000000) pc = (pc & 0x3fffffff) | 0x40000000;
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panicPutStr(" 0x");
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panicPutHex(pc);
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panicPutStr(":0x");
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panicPutHex(sp);
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static void putEntry(uint32_t pc, uint32_t sp)
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{
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if (pc & 0x80000000) {
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pc = (pc & 0x3fffffff) | 0x40000000;
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}
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panicPutStr(" 0x");
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panicPutHex(pc);
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panicPutStr(":0x");
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panicPutHex(sp);
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}
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void doBacktrace(XtExcFrame *frame) {
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uint32_t i = 0, pc = frame->pc, sp = frame->a1;
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panicPutStr("\nBacktrace:");
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/* Do not check sanity on first entry, PC could be smashed. */
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putEntry(pc, sp);
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pc = frame->a0;
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while (i++ < 100) {
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uint32_t psp = sp;
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if (!stackPointerIsSane(sp) || i++ > 100) break;
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sp = *((uint32_t *) (sp - 0x10 + 4));
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putEntry(pc, sp);
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pc = *((uint32_t *) (psp - 0x10));
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if (pc < 0x40000000) break;
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}
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panicPutStr("\n\n");
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void doBacktrace(XtExcFrame *frame)
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{
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uint32_t i = 0, pc = frame->pc, sp = frame->a1;
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panicPutStr("\nBacktrace:");
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/* Do not check sanity on first entry, PC could be smashed. */
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putEntry(pc, sp);
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pc = frame->a0;
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while (i++ < 100) {
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uint32_t psp = sp;
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if (!stackPointerIsSane(sp) || i++ > 100) {
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break;
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}
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sp = *((uint32_t *) (sp - 0x10 + 4));
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putEntry(pc, sp);
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pc = *((uint32_t *) (psp - 0x10));
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if (pc < 0x40000000) {
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break;
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}
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}
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panicPutStr("\n\n");
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}
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/*
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We arrive here after a panic or unhandled exception, when no OCD is detected. Dump the registers to the
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serial port and either jump to the gdb stub, halt the CPU or reboot.
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We arrive here after a panic or unhandled exception, when no OCD is detected. Dump the registers to the
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serial port and either jump to the gdb stub, halt the CPU or reboot.
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*/
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void commonErrorHandler(XtExcFrame *frame) {
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int *regs=(int*)frame;
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int x, y;
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const char *sdesc[]={
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"PC ","PS ","A0 ","A1 ","A2 ","A3 ","A4 ","A5 ",
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"A6 ","A7 ","A8 ","A9 ","A10 ","A11 ","A12 ","A13 ",
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"A14 ","A15 ","SAR ","EXCCAUSE","EXCVADDR","LBEG ","LEND ","LCOUNT "};
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void commonErrorHandler(XtExcFrame *frame)
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{
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int *regs = (int *)frame;
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int x, y;
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const char *sdesc[] = {
|
||||
"PC ", "PS ", "A0 ", "A1 ", "A2 ", "A3 ", "A4 ", "A5 ",
|
||||
"A6 ", "A7 ", "A8 ", "A9 ", "A10 ", "A11 ", "A12 ", "A13 ",
|
||||
"A14 ", "A15 ", "SAR ", "EXCCAUSE", "EXCVADDR", "LBEG ", "LEND ", "LCOUNT "
|
||||
};
|
||||
|
||||
//Feed the watchdogs, so they will give us time to print out debug info
|
||||
reconfigureAllWdts();
|
||||
//Feed the watchdogs, so they will give us time to print out debug info
|
||||
reconfigureAllWdts();
|
||||
|
||||
panicPutStr("Register dump:\r\n");
|
||||
panicPutStr("Register dump:\r\n");
|
||||
|
||||
for (x=0; x<24; x+=4) {
|
||||
for (y=0; y<4; y++) {
|
||||
if (sdesc[x+y][0]!=0) {
|
||||
panicPutStr(sdesc[x+y]);
|
||||
panicPutStr(": 0x");
|
||||
panicPutHex(regs[x+y+1]);
|
||||
panicPutStr(" ");
|
||||
}
|
||||
}
|
||||
panicPutStr("\r\n");
|
||||
}
|
||||
/* With windowed ABI backtracing is easy, let's do it. */
|
||||
doBacktrace(frame);
|
||||
for (x = 0; x < 24; x += 4) {
|
||||
for (y = 0; y < 4; y++) {
|
||||
if (sdesc[x + y][0] != 0) {
|
||||
panicPutStr(sdesc[x + y]);
|
||||
panicPutStr(": 0x");
|
||||
panicPutHex(regs[x + y + 1]);
|
||||
panicPutStr(" ");
|
||||
}
|
||||
}
|
||||
panicPutStr("\r\n");
|
||||
}
|
||||
/* With windowed ABI backtracing is easy, let's do it. */
|
||||
doBacktrace(frame);
|
||||
#if CONFIG_ESP32_PANIC_GDBSTUB
|
||||
disableAllWdts();
|
||||
panicPutStr("Entering gdb stub now.\r\n");
|
||||
esp_gdbstub_panic_handler(frame);
|
||||
disableAllWdts();
|
||||
panicPutStr("Entering gdb stub now.\r\n");
|
||||
esp_gdbstub_panic_handler(frame);
|
||||
#elif CONFIG_ESP32_PANIC_PRINT_REBOOT || CONFIG_ESP32_PANIC_SILENT_REBOOT
|
||||
panicPutStr("Rebooting...\r\n");
|
||||
for (x=0; x<100; x++) ets_delay_us(1000);
|
||||
software_reset();
|
||||
panicPutStr("Rebooting...\r\n");
|
||||
for (x = 0; x < 100; x++) {
|
||||
ets_delay_us(1000);
|
||||
}
|
||||
software_reset();
|
||||
#else
|
||||
disableAllWdts();
|
||||
panicPutStr("CPU halted.\r\n");
|
||||
while(1);
|
||||
disableAllWdts();
|
||||
panicPutStr("CPU halted.\r\n");
|
||||
while (1);
|
||||
#endif
|
||||
}
|
||||
|
||||
|
||||
void esp_set_breakpoint_if_jtag(void *fn) {
|
||||
if (!inOCDMode()) return;
|
||||
setFirstBreakpoint((uint32_t)fn);
|
||||
void esp_set_breakpoint_if_jtag(void *fn)
|
||||
{
|
||||
if (!inOCDMode()) {
|
||||
return;
|
||||
}
|
||||
setFirstBreakpoint((uint32_t)fn);
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue