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Backtrace minor cleanup

pull/1/head
Scott Lahteine 7 years ago
parent
53f0c7522a
commit
889fd5f71f
4 changed files with 51 additions and 60 deletions
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  1. 31
      Marlin/src/HAL/HAL_DUE/DebugMonitor_Due.cpp
  2. 33
      Marlin/src/backtrace/backtrace.cpp
  3. 39
      Marlin/src/backtrace/unwarm.cpp
  4. 8
      Marlin/src/backtrace/unwinder.h

31
Marlin/src/HAL/HAL_DUE/DebugMonitor_Due.cpp
View File

@ -75,9 +75,7 @@ static void TX(char c) {
// Send String through UART
static void TX(const char* s) {
while (*s) {
TX(*s++);
}
while (*s) TX(*s++);
}
static void TXDigit(uint32_t d) {
@ -89,9 +87,8 @@ static void TXDigit(uint32_t d) {
// Send Hex number thru UART
static void TXHex(uint32_t v) {
TX("0x");
for (int i=0; i<8; i++, v <<= 4) {
for (uint8_t i = 0; i < 8; i++, v <<= 4)
TXDigit((v >> 28) & 0xF);
}
}
// Send Decimal number thru UART
@ -125,15 +122,15 @@ static bool UnwReportOut(void* ctx, const UnwReport* bte) {
return true;
}
#if defined(UNW_DEBUG)
void UnwPrintf(const char* format, ...) {
char dest[256];
va_list argptr;
va_start(argptr, format);
vsprintf(dest, format, argptr);
va_end(argptr);
TX(&dest[0]);
}
#ifdef UNW_DEBUG
void UnwPrintf(const char* format, ...) {
char dest[256];
va_list argptr;
va_start(argptr, format);
vsprintf(dest, format, argptr);
va_end(argptr);
TX(&dest[0]);
}
#endif
/* Table of function pointers for passing to the unwinder */
@ -142,9 +139,9 @@ static const UnwindCallbacks UnwCallbacks = {
UnwReadW,
UnwReadH,
UnwReadB
#if defined(UNW_DEBUG)
,UnwPrintf
#endif
#if defined(UNW_DEBUG)
,UnwPrintf
#endif
};
/**

33
Marlin/src/backtrace/backtrace.cpp
View File

@ -30,26 +30,26 @@
// Dump a backtrace entry
static bool UnwReportOut(void* ctx, const UnwReport* bte) {
int* p = (int*)ctx;
int *p = (int*)ctx;
(*p)++;
SERIAL_CHAR('#'); SERIAL_PRINT(*p,DEC); SERIAL_ECHOPGM(" : ");
SERIAL_ECHOPGM(bte->name?bte->name:"unknown"); SERIAL_ECHOPGM("@0x"); SERIAL_PRINT(bte->function,HEX);
SERIAL_ECHOPGM(bte->name ? bte->name : "unknown"); SERIAL_ECHOPGM("@0x"); SERIAL_PRINT(bte->function, HEX);
SERIAL_CHAR('+'); SERIAL_PRINT(bte->address - bte->function,DEC);
SERIAL_ECHOPGM(" PC:"); SERIAL_PRINT(bte->address,HEX); SERIAL_CHAR('\n');
return true;
}
#if defined(UNW_DEBUG)
void UnwPrintf(const char* format, ...) {
char dest[256];
va_list argptr;
va_start(argptr, format);
vsprintf(dest, format, argptr);
va_end(argptr);
TX(&dest[0]);
}
#ifdef UNW_DEBUG
void UnwPrintf(const char* format, ...) {
char dest[256];
va_list argptr;
va_start(argptr, format);
vsprintf(dest, format, argptr);
va_end(argptr);
TX(&dest[0]);
}
#endif
/* Table of function pointers for passing to the unwinder */
@ -58,9 +58,9 @@ static const UnwindCallbacks UnwCallbacks = {
UnwReadW,
UnwReadH,
UnwReadB
#if defined(UNW_DEBUG)
,UnwPrintf
#endif
#ifdef UNW_DEBUG
, UnwPrintf
#endif
};
void backtrace(void) {
@ -92,11 +92,8 @@ void backtrace(void) {
UnwindStart(&btf, &UnwCallbacks, &ctr);
}
#else
#else // !__arm__ && !__thumb__
void backtrace(void) {}
#endif

39
Marlin/src/backtrace/unwarm.cpp
View File

@ -25,7 +25,8 @@
#if defined(UNW_DEBUG)
/** Printf wrapper.
/**
* Printf wrapper.
* This is used such that alternative outputs for any output can be selected
* by modification of this wrapper function.
*/
@ -37,10 +38,10 @@ void UnwPrintf(const char *format, ...) {
}
#endif
/** Invalidate all general purpose registers.
/**
* Invalidate all general purpose registers.
*/
void UnwInvalidateRegisterFile(RegData *regFile) {
uint8_t t = 0;
do {
regFile[t].o = REG_VAL_INVALID;
@ -49,7 +50,8 @@ void UnwInvalidateRegisterFile(RegData *regFile) {
}
/** Initialise the data used for unwinding.
/**
* Initialise the data used for unwinding.
*/
void UnwInitState(UnwState * const state, /**< Pointer to structure to fill. */
const UnwindCallbacks *cb, /**< Callbacks. */
@ -77,12 +79,12 @@ void UnwInitState(UnwState * const state, /**< Pointer to structure to fill.
// Detect if function names are available
static int __attribute__ ((noinline)) has_function_names(void) {
uint32_t flag_word = ((uint32_t*)(((uint32_t)(&has_function_names)) & (-4))) [-1];
return ((flag_word & 0xff000000) == 0xff000000) ? 1 : 0;
}
/** Call the report function to indicate some return address.
/**
* Call the report function to indicate some return address.
* This returns the value of the report function, which if true
* indicates that unwinding may continue.
*/
@ -108,11 +110,9 @@ bool UnwReportRetAddr(UnwState * const state, uint32_t addr) {
while(state->cb->readW(pf-4,&v)) {
// Check if name descriptor is valid
if ((v & 0xffffff00) == 0xff000000 &&
(v & 0xff) > 1) {
if ((v & 0xFFFFFF00) == 0xFF000000 && (v & 0xFF) > 1) {
// Assume the name was found!
entry.name = ((const char*)pf) - 4 - (v & 0xff);
entry.name = ((const char*)pf) - 4 - (v & 0xFF);
entry.function = pf;
break;
}
@ -129,7 +129,8 @@ bool UnwReportRetAddr(UnwState * const state, uint32_t addr) {
}
/** Write some register to memory.
/**
* Write some register to memory.
* This will store some register and meta data onto the virtual stack.
* The address for the write
* \param state [in/out] The unwinding state.
@ -141,7 +142,8 @@ bool UnwMemWriteRegister(UnwState * const state, const uint32_t addr, const RegD
return UnwMemHashWrite(&state->memData, addr, reg->v, M_IsOriginValid(reg->o));
}
/** Read a register from memory.
/**
* Read a register from memory.
* This will read a register from memory, and setup the meta data.
* If the register has been previously written to memory using
* UnwMemWriteRegister, the local hash will be used to return the
@ -156,23 +158,18 @@ bool UnwMemWriteRegister(UnwState * const state, const uint32_t addr, const RegD
* false is the data could not be read.
*/
bool UnwMemReadRegister(UnwState * const state, const uint32_t addr, RegData * const reg) {
bool tracked;
/* Check if the value can be found in the hash */
if(UnwMemHashRead(&state->memData, addr, &reg->v, &tracked)) {
// Check if the value can be found in the hash
if (UnwMemHashRead(&state->memData, addr, &reg->v, &tracked)) {
reg->o = tracked ? REG_VAL_FROM_MEMORY : REG_VAL_INVALID;
return true;
}
/* Not in the hash, so read from real memory */
else if(state->cb->readW(addr, &reg->v)) {
else if (state->cb->readW(addr, &reg->v)) { // Not in the hash, so read from real memory
reg->o = REG_VAL_FROM_MEMORY;
return true;
}
/* Not in the hash, and failed to read from memory */
else {
return false;
}
else return false; // Not in the hash, and failed to read from memory
}
#endif

8
Marlin/src/backtrace/unwinder.h
View File

@ -146,10 +146,10 @@ typedef struct {
*/
bool (*readB)(const uint32_t address, uint8_t *val);
#if defined(UNW_DEBUG)
/** Print a formatted line for debug. */
void (*printf)(const char *format, ...);
#endif
#ifdef UNW_DEBUG
/** Print a formatted line for debug. */
void (*printf)(const char *format, ...);
#endif
} UnwindCallbacks;
/* A frame */

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