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!135 添加backtrace for riscv在不打开frame-pointer的提前下 

Merge pull request !135 from JerryH/backtrace
This commit is contained in:
openharmony_ci 2021-06-09 11:46:03 +08:00 committed by Gitee
parent 0ba33abcd1 97a5b6d8dc
commit 9781662cea
3 changed files with 184 additions and 61 deletions
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226
components/backtrace/los_backtrace.c
View File

@ -112,15 +112,15 @@ STATIC INLINE UINT32 OsStackAddrGet(UINTPTR *stackStart, UINTPTR *stackEnd, UINT
{
if (SP != 0) {
*stackStart = SP;
if ((SP >= CODE_START_ADDR) && (SP < CSTACK_END_ADDR)) {
if ((SP >= CSTACK_START_ADDR) && (SP < CSTACK_END_ADDR)) {
*stackEnd = CSTACK_END_ADDR;
} else {
UINT32 taskID = LOS_CurTaskIDGet();
LosTaskCB *taskCB = OS_TCB_FROM_TID(taskID);
*stackEnd = (UINTPTR)taskCB->topOfStack + taskCB->stackSize;
if ((SP < (UINTPTR)taskCB->topOfStack) || (SP >= *stackEnd)) {
PRINT_ERR("msp stack [0x%x, 0x%x], cur task stack [0x%x, 0x%x], cur sp(0x%x) is overflow!\n",
CODE_START_ADDR, CSTACK_END_ADDR, (UINTPTR)taskCB->topOfStack, *stackEnd, SP);
PRINT_ERR("msp statck [0x%x, 0x%x], cur task stack [0x%x, 0x%x], cur sp(0x%x) is overflow!\n",
CSTACK_START_ADDR, CSTACK_END_ADDR, (UINTPTR)taskCB->topOfStack, *stackEnd, SP);
return LOS_NOK;
}
}
@ -128,9 +128,9 @@ STATIC INLINE UINT32 OsStackAddrGet(UINTPTR *stackStart, UINTPTR *stackEnd, UINT
if (HalSpGet() != HalPspGet()) {
*stackStart = HalMspGet();
*stackEnd = CSTACK_END_ADDR;
if ((*stackStart < CODE_START_ADDR) || (*stackStart >= CSTACK_END_ADDR)) {
if ((*stackStart < CSTACK_START_ADDR) || (*stackStart >= CSTACK_END_ADDR)) {
PRINT_ERR("msp stack [0x%x, 0x%x], cur sp(0x%x) is overflow!\n",
CODE_START_ADDR, CSTACK_END_ADDR, *stackStart);
CSTACK_START_ADDR, CSTACK_END_ADDR, *stackStart);
return LOS_NOK;
}
PRINTK("msp, start = %x, end = %x\n", *stackStart, *stackEnd);
@ -179,7 +179,172 @@ STATIC INLINE UINTPTR OsAddrIsValid(UINTPTR sp)
return pc;
}
#elif (LOSCFG_BACKTRACE_TYPE == 2)
STATIC INLINE BOOL OsBackTraceFpCheck(UINT32 value);
#define OS_BACKTRACE_START 1
#define OS_RA_OFFSET 4
#define OS_FP_OFFSET 8
#define OS_FP_ALIGN(value) (((UINT32)(value) & (UINT32)(LOSCFG_STACK_POINT_ALIGN_SIZE - 1)) == 0)
#define OS_FP_CHECK(value) (((UINT32)(value) != FP_INIT_VALUE) && OS_FP_ALIGN(value))
STATIC INLINE UINTPTR OsFpGet(VOID)
{
UINTPTR fp = 0;
__asm volatile("mv %0, s0" : "=r"(fp));
dsb();
return fp;
}
VOID LOS_RecordLR(UINTPTR *LR, UINT32 LRSize, UINT32 jumpCount, UINTPTR SP)
{
UNUSED(SP);
UINT32 backFp = OsFpGet();
UINT32 tmpFp;
UINT32 backRa;
UINT32 count = 0;
UINT32 index = 0;
if (LR == NULL) {
return;
}
while (OS_FP_CHECK(backFp)) {
tmpFp = backFp;
backRa = *((UINT32 *)(UINTPTR)(tmpFp - OS_RA_OFFSET));
backFp = *((UINT32 *)(UINTPTR)(tmpFp - OS_FP_OFFSET));
if (index++ < jumpCount) {
continue;
}
LR[count] = backRa;
count++;
if ((count == LRSize) || (backFp == tmpFp) ||
(!OsStackDataIsCodeAddr(backRa))) {
break;
}
}
if (count < LRSize) {
LR[count] = 0;
}
}
#elif (LOSCFG_BACKTRACE_TYPE == 3)
#define OS_BACKTRACE_START 1
#define OS_JALX_INS_MASK 0x7F
#define OS_JAL_INS_LOW 0x6F
#define OS_JAL_16_INS_MASK 0x2001
#define OS_JALR_INS_LOW 0x67
#define OS_JALR_16_INS_MASK 0x9002
#define OS_JR_16_INS_MASK 0x8002
#define OS_J_16_INS_MASK 0xA001
STATIC INLINE BOOL OsInsIsJump(UINTPTR addr)
{
UINT16 ins1 = *((UINT16 *)addr);
UINT16 ins2 = *((UINT16 *)(addr + 2));
/* Jal ins */
if (((ins1 & OS_JALX_INS_MASK) == OS_JAL_INS_LOW) ||
((ins1 & OS_JAL_16_INS_MASK) == OS_JAL_16_INS_MASK) ||
((ins2 & OS_JAL_16_INS_MASK) == OS_JAL_16_INS_MASK)) {
return TRUE;
}
/* Jalr ins */
if (((ins1 & OS_JALX_INS_MASK) == OS_JALR_INS_LOW) ||
((ins1 & OS_JALR_16_INS_MASK) == OS_JALR_16_INS_MASK) ||
((ins2 & OS_JALR_16_INS_MASK) == OS_JALR_16_INS_MASK)) {
return TRUE;
}
/* Jr ins */
if (((ins1 & OS_JR_16_INS_MASK) == OS_JR_16_INS_MASK) ||
((ins2 & OS_JR_16_INS_MASK) == OS_JR_16_INS_MASK)) {
return TRUE;
}
/* J ins */
if (((ins1 & OS_J_16_INS_MASK) == OS_J_16_INS_MASK) ||
((ins2 & OS_J_16_INS_MASK) == OS_J_16_INS_MASK)) {
return TRUE;
}
return FALSE;
}
STATIC INLINE UINTPTR OsSpGet(VOID)
{
UINTPTR sp = 0;
__asm volatile("mv %0, sp" : "=r"(sp));
dsb();
return sp;
}
STATIC INLINE UINT32 OsStackAddrGet(UINTPTR *stackStart, UINTPTR *stackEnd, UINTPTR SP)
{
if (SP != 0) {
*stackStart = SP;
if ((SP >= CSTACK_START_ADDR) && (SP < CSTACK_END_ADDR)) {
*stackEnd = CSTACK_END_ADDR;
} else {
UINT32 taskID = LOS_CurTaskIDGet();
LosTaskCB *taskCB = OS_TCB_FROM_TID(taskID);
*stackEnd = (UINTPTR)taskCB->topOfStack + taskCB->stackSize;
if ((SP < (UINTPTR)taskCB->topOfStack) || (SP >= *stackEnd)) {
PRINT_ERR("msp statck [0x%x, 0x%x], cur task stack [0x%x, 0x%x], cur sp(0x%x) is overflow!\n",
CSTACK_START_ADDR, CSTACK_END_ADDR, (UINTPTR)taskCB->topOfStack, *stackEnd, SP);
return LOS_NOK;
}
}
} else {
if (!LOS_TaskIsRunning()) {
*stackStart = OsSpGet();
*stackEnd = CSTACK_END_ADDR;
if ((*stackStart < CSTACK_START_ADDR) || (*stackStart >= CSTACK_END_ADDR)) {
PRINT_ERR("msp stack [0x%x, 0x%x], cur sp(0x%x) is overflow!\n",
CSTACK_START_ADDR, CSTACK_END_ADDR, *stackStart);
return LOS_NOK;
}
} else {
*stackStart = OsSpGet();
UINT32 taskID = LOS_CurTaskIDGet();
LosTaskCB *taskCB = OS_TCB_FROM_TID(taskID);
*stackEnd = (UINTPTR)taskCB->topOfStack + taskCB->stackSize;
if ((*stackStart < (UINTPTR)taskCB->topOfStack) || (*stackStart >= *stackEnd)) {
PRINT_ERR("psp stack [0x%x, 0x%x], cur sp(0x%x) is overflow, cur task id is %d!\n",
taskCB->topOfStack, *stackEnd, *stackStart, taskID);
return LOS_NOK;
}
}
}
return LOS_OK;
}
STATIC INLINE UINTPTR OsAddrIsValid(UINTPTR sp)
{
UINTPTR pc;
BOOL ret;
pc = *((UINTPTR *)sp);
ret = OsStackDataIsCodeAddr(pc);
if (ret == FALSE) {
return 0;
}
ret = OsInsIsJump(pc - sizeof(UINTPTR));
if (ret == FALSE) {
return 0;
}
return pc;
}
#else
#error Unknown backtrace type.
#endif
#if (LOSCFG_BACKTRACE_TYPE == 1) || (LOSCFG_BACKTRACE_TYPE == 3)
VOID LOS_RecordLR(UINTPTR *LR, UINT32 LRSize, UINT32 jumpCount, UINTPTR SP)
{
if (LR == NULL) {
@ -218,57 +383,6 @@ VOID LOS_RecordLR(UINTPTR *LR, UINT32 LRSize, UINT32 jumpCount, UINTPTR SP)
LR[count] = 0;
}
}
#elif (LOSCFG_BACKTRACE_TYPE == 2)
STATIC INLINE BOOL OsBackTraceFpCheck(UINT32 value);
#define OS_BACKTRACE_START 1
#define OS_RA_OFFSET 4
#define OS_FP_OFFSET 8
#define OS_FP_ALIGN(value) (((UINT32)(value) & (UINT32)(LOSCFG_STACK_POINT_ALIGN_SIZE - 1)) == 0)
#define OS_FP_CHECK(value) (((UINT32)(value) != FP_INIT_VALUE) && OS_FP_ALIGN(value))
STATIC INLINE UINTPTR OsFpGet(VOID)
{
UINTPTR fp = 0;
__asm volatile("mv %0, s0" : "=r"(fp));
dsb();
return fp;
}
VOID LOS_RecordLR(UINTPTR *LR, UINT32 LRSize, UINT32 jumpCount, UINTPTR SP)
{
UNUSED(SP);
UINT32 backFp = OsFpGet();
UINT32 tmpFp;
UINT32 backRa;
UINT32 count = 0;
UINT32 index = 0;
if (LR == NULL) {
return;
}
while (OS_FP_CHECK(backFp)) {
tmpFp = backFp;
backRa = *((UINT32 *)(UINTPTR)(tmpFp - OS_RA_OFFSET));
backFp = *((UINT32 *)(UINTPTR)(tmpFp - OS_FP_OFFSET));
if (index++ < jumpCount) {
continue;
}
LR[count] = backRa;
count++;
if ((count == LRSize) || (backFp == tmpFp) ||
(!OsStackDataIsCodeAddr(backRa))) {
break;
}
}
if (count < LRSize) {
LR[count] = 0;
}
}
#else
#error Unknown backtrace type.
#endif
VOID LOS_BackTrace(VOID)

14
components/backtrace/los_backtrace.h
View File

@ -115,18 +115,26 @@ extern CHAR *CSTACK_SECTION_END;
#else
#error Unknown compiler.
#endif
#elif (LOSCFG_BACKTRACE_TYPE == 2)
#elif (LOSCFG_BACKTRACE_TYPE == 2) || (LOSCFG_BACKTRACE_TYPE == 3)
#if defined(__GNUC__)
/* The default code section start address */
#define CODE_SECTION_START __text_start
/* The default code section end address */
#define CODE_SECTION_END __text_end
/* The default C stack section start address */
#define CSTACK_SECTION_START __except_stack_top
/* The default C stack section end address */
#define CSTACK_SECTION_END __start_and_irq_stack_top
extern CHAR *CODE_SECTION_START;
extern CHAR *CODE_SECTION_END;
extern CHAR *CSTACK_SECTION_START;
extern CHAR *CSTACK_SECTION_END;
#define CODE_START_ADDR ((UINTPTR)&CODE_SECTION_START)
#define CODE_END_ADDR ((UINTPTR)&CODE_SECTION_END)
#define CODE_START_ADDR ((UINTPTR)&CODE_SECTION_START)
#define CODE_END_ADDR ((UINTPTR)&CODE_SECTION_END)
#define CSTACK_START_ADDR ((UINTPTR)&CSTACK_SECTION_START)
#define CSTACK_END_ADDR ((UINTPTR)&CSTACK_SECTION_END)
#else
#error Unknown compiler.
#endif

5
kernel/include/los_config.h
View File

@ -609,8 +609,9 @@ extern UINT8 *m_aucSysMem0;
* @ingroup los_config
* Configuration backtrace type
* 0: Close stack analysis module.
* 1: Call stack analysis for cortex-m series.
* 2: Call stack analysis for risc-v.
* 1: Call stack analysis for cortex-m series by scanning the stack.
* 2: Call stack analysis for risc-v by using frame pointer.
* 3: Call stack analysis for risc-v by scanning the stack.
* others: Not currently supported.
*/
#ifndef LOSCFG_BACKTRACE_TYPE