arm-m armv7a riscv32 :use cfi in irq asm function, make a debug frame
test code hello_main
int main(int argc, FAR char *argv[])
{
uint32_t *p = 0xdeedbeff;
*p = 0xffffff;
printf("%p\n %x\n", p, *p);
return 0;
}
qemu mps3-an547 hello_main :
Triggering an exception, and gdb backtrace is:
before:
(gdb) bt
/#0 0x0001168a in systick_getstatus (lower_=0x100010c <g_systick_lower>, status=0x1000a30 <g_intstackalloc+1600>)
at /home/ajh/work/vela_system/nuttx/arch/arm/src/armv8-m/arm_systick.c:142
/#1 0x000122f4 in current_usec () at /home/ajh/work/vela_system/nuttx/drivers/timers/arch_timer.c:105
/#2 0x0001234c in udelay_accurate (microseconds=250000) at /home/ajh/work/vela_system/nuttx/drivers/timers/arch_timer.c:115
/#3 0x000124bc in up_udelay (microseconds=250000) at /home/ajh/work/vela_system/nuttx/drivers/timers/arch_timer.c:463
/#4 0x0001249e in up_mdelay (milliseconds=250) at /home/ajh/work/vela_system/nuttx/drivers/timers/arch_timer.c:446
/#5 0x0000920c in reset_board () at /home/ajh/work/vela_system/nuttx/sched/misc/assert.c:830
/#6 0x0000937c in _assert (filename=0x393f8 "/arch/arm/src/armv8-m/arm_busfault.c", linenum=113, msg=0x393f0 "panic", regs=0x1008500)
at /home/ajh/work/vela_system/nuttx/sched/misc/assert.c:940
/#7 0x00000e2c in arm_busfault (irq=3, context=0x1008500, arg=0x0 <up_ndelay>) at /home/ajh/work/vela_system/nuttx/arch/arm/src/armv8-m/arm_busfault.c:113
/#8 0x000012d2 in arm_hardfault (irq=3, context=0x1008500, arg=0x0 <up_ndelay>)
at /home/ajh/work/vela_system/nuttx/arch/arm/src/armv8-m/arm_hardfault.c:142
/#9 0x00008b20 in irq_dispatch (irq=3, context=0x1008500) at /home/ajh/work/vela_system/nuttx/sched/irq/irq_dispatch.c:145
/#10 0x0000041a in arm_doirq (irq=3, regs=0x1008500) at /home/ajh/work/vela_system/nuttx/arch/arm/src/armv8-m/arm_doirq.c:103
/#11 0x0000034e in exception_common () at /home/ajh/work/vela_system/nuttx/arch/arm/src/armv8-m/arm_exception.S:224
after:
(gdb) bt
/#0 systick_is_running () at /home/ajh/work/vela_system/nuttx/arch/arm/src/armv8-m/arm_systick.c:106
/#1 0x000125c0 in systick_getstatus (lower_=0x1000114 <g_systick_lower>, status=0x1007a20)
at /home/ajh/work/vela_system/nuttx/arch/arm/src/armv8-m/arm_systick.c:141
/#2 0x0001323c in current_usec () at /home/ajh/work/vela_system/nuttx/drivers/timers/arch_timer.c:105
/#3 0x00013294 in udelay_accurate (microseconds=250000) at /home/ajh/work/vela_system/nuttx/drivers/timers/arch_timer.c:115
/#4 0x00013404 in up_udelay (microseconds=250000) at /home/ajh/work/vela_system/nuttx/drivers/timers/arch_timer.c:463
/#5 0x000133e6 in up_mdelay (milliseconds=250) at /home/ajh/work/vela_system/nuttx/drivers/timers/arch_timer.c:446
/#6 0x00008c5c in reset_board () at /home/ajh/work/vela_system/nuttx/sched/misc/assert.c:816
/#7 0x00008e88 in _assert (filename=0x39408 "/arch/arm/src/armv8-m/arm_busfault.c", linenum=113, msg=0x39400 "panic", regs=0x1007cf0)
at /home/ajh/work/vela_system/nuttx/sched/misc/assert.c:915
/#8 0x00000ce4 in arm_busfault (irq=3, context=0x1007cf0, arg=0x0 <up_ndelay>)
at /home/ajh/work/vela_system/nuttx/arch/arm/src/armv8-m/arm_busfault.c:113
/#9 0x0000118a in arm_hardfault (irq=3, context=0x1007cf0, arg=0x0 <up_ndelay>)
at /home/ajh/work/vela_system/nuttx/arch/arm/src/armv8-m/arm_hardfault.c:142
/#10 0x000086cc in irq_dispatch (irq=3, context=0x1007cf0) at /home/ajh/work/vela_system/nuttx/sched/irq/irq_dispatch.c:145
/#11 0x0000041e in arm_doirq (irq=3, regs=0x1007cf0) at /home/ajh/work/vela_system/nuttx/arch/arm/src/armv8-m/arm_doirq.c:99
/#12 0x00000360 in exception_common () at /home/ajh/work/vela_system/nuttx/arch/arm/src/armv8-m/arm_exception.S:230
/#13 0x00027a8c in hello_main (argc=1, argv=0x1006e20) at /home/ajh/work/vela_system/apps/examples/hello/hello_main.c:39
/#14 0x00014968 in nxtask_startup (entrypt=0x27a7d <hello_main>, argc=1, argv=0x1006e20)
at /home/ajh/work/vela_system/nuttx/libs/libc/sched/task_startup.c:72
/#15 0x0000f450 in nxtask_start () at /home/ajh/work/vela_system/nuttx/sched/task/task_start.c:116
/#16 0x00000000 in ?? ()
(gdb)
qemu armv7a nsh, hello_main:
before:
(gdb) bt
/#0 udelay_coarse (microseconds=156000) at /home/ajh/work/vela_system/nuttx/drivers/timers/arch_alarm.c:67
/#1 up_ndelay (nanoseconds=nanoseconds@entry=250000000) at /home/ajh/work/vela_system/nuttx/drivers/timers/arch_alarm.c:431
/#2 0x0060c630 in up_udelay (microseconds=microseconds@entry=250000) at /home/ajh/work/vela_system/nuttx/drivers/timers/arch_alarm.c:416
/#3 0x0060c644 in up_mdelay (milliseconds=milliseconds@entry=250) at /home/ajh/work/vela_system/nuttx/drivers/timers/arch_alarm.c:401
/#4 0x006056bc in reset_board () at /home/ajh/work/vela_system/nuttx/sched/misc/assert.c:816
/#5 _assert (filename=filename@entry=0x63047f "/arch/arm/src/armv7-a/arm_dataabort.c", linenum=linenum@entry=157, msg=msg@entry=0x62f56d "panic",
regs=<optimized out>, regs@entry=0x4020af10) at /home/ajh/work/vela_system/nuttx/sched/misc/assert.c:915
/#6 0x0060bd74 in arm_dataabort (regs=0x4020af10, dfar=<optimized out>, dfsr=<optimized out>)
at /home/ajh/work/vela_system/nuttx/arch/arm/src/armv7-a/arm_dataabort.c:157
/#7 0x0060bc04 in arm_vectordata () at /home/ajh/work/vela_system/nuttx/arch/arm/src/armv7-a/arm_vectors.S:438
Backtrace stopped: previous frame identical to this frame (corrupt stack?)
(gdb)
after:
(gdb) bt
/#0 udelay_coarse (microseconds=192000) at /home/ajh/work/vela_system/nuttx/drivers/timers/arch_alarm.c:67
/#1 up_ndelay (nanoseconds=nanoseconds@entry=250000000) at /home/ajh/work/vela_system/nuttx/drivers/timers/arch_alarm.c:431
/#2 0x0060c650 in up_udelay (microseconds=microseconds@entry=250000) at /home/ajh/work/vela_system/nuttx/drivers/timers/arch_alarm.c:416
/#3 0x0060c664 in up_mdelay (milliseconds=milliseconds@entry=250) at /home/ajh/work/vela_system/nuttx/drivers/timers/arch_alarm.c:401
/#4 0x006056bc in reset_board () at /home/ajh/work/vela_system/nuttx/sched/misc/assert.c:816
/#5 _assert (filename=filename@entry=0x63047f "/arch/arm/src/armv7-a/arm_dataabort.c", linenum=linenum@entry=157, msg=msg@entry=0x62f56d "panic",
regs=<optimized out>, regs@entry=0x4020af10) at /home/ajh/work/vela_system/nuttx/sched/misc/assert.c:915
/#6 0x0060bd94 in arm_dataabort (regs=0x4020af10, dfar=<optimized out>, dfsr=<optimized out>)
at /home/ajh/work/vela_system/nuttx/arch/arm/src/armv7-a/arm_dataabort.c:157
/#7 0x0060bc08 in arm_vectordata () at /home/ajh/work/vela_system/nuttx/arch/arm/src/armv7-a/arm_vectors.S:453
/#8 0x00620cd4 in hello_main (argc=4999, argv=0x0) at /home/ajh/work/vela_system/apps/examples/hello/hello_main.c:41
/#9 0x0060d320 in nxtask_startup (entrypt=0x620cc4 <hello_main>, argc=1, argv=0x4020a088)
at /home/ajh/work/vela_system/nuttx/libs/libc/sched/task_startup.c:72
/#10 0x00609b50 in nxtask_start () at /home/ajh/work/vela_system/nuttx/sched/task/task_start.c:116
/#11 0x00000000 in ?? ()
qemu risc-v nsh
before:
(gdb) bt
/#0 udelay_coarse (microseconds=228000, microseconds@entry=891896832) at timers/arch_alarm.c:67
/#1 up_ndelay (nanoseconds=nanoseconds@entry=250000000) at timers/arch_alarm.c:431
/#2 0x8000397e in up_udelay (microseconds=microseconds@entry=250000) at timers/arch_alarm.c:416
/#3 0x80003988 in up_mdelay (milliseconds=milliseconds@entry=250) at timers/arch_alarm.c:401
/#4 0x80011f1c in reset_board () at misc/assert.c:813
/#5 0x80011f7a in _assert (filename=filename@entry=0x0, linenum=linenum@entry=0, msg=msg@entry=0x8002114c "panic", regs=<optimized out>,
regs@entry=0x80030704) at misc/assert.c:915
/#6 0x80006ad6 in riscv_exception (mcause=<optimized out>, regs=0x80030704, args=<optimized out>) at common/riscv_exception.c:129
/#7 0x80000d9e in riscv_doirq (irq=7, regs=<optimized out>) at common/riscv_doirq.c:99
/#8 0x80000164 in exception_common () at common/riscv_exception_common.S:210
Backtrace stopped: frame did not save the PC
(gdb)
after
(gdb) bt
/#0 0x80003922 in udelay_coarse (microseconds=90000, microseconds@entry=891896832) at timers/arch_alarm.c:67
/#1 up_ndelay (nanoseconds=nanoseconds@entry=250000000) at timers/arch_alarm.c:431
/#2 0x8000397e in up_udelay (microseconds=microseconds@entry=250000) at timers/arch_alarm.c:416
/#3 0x80003988 in up_mdelay (milliseconds=milliseconds@entry=250) at timers/arch_alarm.c:401
/#4 0x80011f2a in reset_board () at misc/assert.c:816
/#5 0x80011f7a in _assert (filename=filename@entry=0x0, linenum=linenum@entry=0, msg=msg@entry=0x8002114c "panic", regs=<optimized out>,
regs@entry=0x80030704) at misc/assert.c:915
/#6 0x80006ad6 in riscv_exception (mcause=<optimized out>, regs=0x80030704, args=<optimized out>) at common/riscv_exception.c:129
/#7 0x80000d9e in riscv_doirq (irq=7, regs=<optimized out>) at common/riscv_doirq.c:99
/#8 0x80000166 in exception_common () at common/riscv_exception_common.S:215
/#9 0x8001792a in hello_main (argc=<optimized out>, argv=<optimized out>) at hello_main.c:41
/#10 0x80004b52 in nxtask_startup (entrypt=0x80030704, argc=1, argv=0x800300e8) at sched/task_startup.c:72
/#11 0x80001e72 in nxtask_start () at task/task_start.c:116
/#12 0x00000000 in ?? ()
Backtrace stopped: frame did not save the PC
(gdb)
Signed-off-by: anjiahao <anjiahao@xiaomi.com>
This commit is contained in:
anjiahao
Xiang Xiao
parent
e96fb6b118
commit
84a3639774
5 changed files with 71 additions and 9 deletions
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@ -85,7 +85,8 @@
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.syntax unified
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.type exception_common, function
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exception_common:
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.cfi_sections .debug_frame
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.cfi_startproc
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/* Complete the context save */
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/* Get the current stack pointer. The EXC_RETURN value tells us whether
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@ -162,7 +163,11 @@ exception_common:
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isb sy
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3:
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#endif
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mov fp, r1
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.cfi_def_cfa fp, 0 /* Register in fp, so we just set fp as frame */
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.cfi_offset pc, REG_PC * 4
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.cfi_offset sp, REG_SP * 4
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.cfi_offset lr, REG_LR * 4
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bl arm_doirq /* R0=IRQ, R1=register save area on stack */
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/* On return from arm_doirq, R0 will hold a pointer to register context
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@ -215,7 +220,7 @@ exception_common:
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*/
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bx r14 /* And return */
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.cfi_endproc
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.size exception_common, .-exception_common
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/****************************************************************************
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@ -173,6 +173,8 @@
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.type arm_vectorirq, %function
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arm_vectorirq:
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.cfi_sections .debug_frame
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.cfi_startproc
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/* Save the LR and SPSR onto the SYS mode stack before switch. */
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@ -234,6 +236,11 @@ arm_vectorirq:
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#endif
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bic sp, sp, #7 /* Force 8-byte alignment */
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mov fp, r0
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.cfi_def_cfa fp, 0 /* Register in fp, so we just set fp as frame */
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.cfi_offset pc, REG_PC * 4
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.cfi_offset sp, REG_SP * 4
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.cfi_offset lr, REG_LR * 4
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bl arm_decodeirq /* Call the handler */
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mov sp, r4 /* Restore the possibly unaligned stack pointer */
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@ -267,6 +274,7 @@ arm_vectorirq:
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.Lirqstacktop:
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.word g_intstacktop
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#endif
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.cfi_endproc
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.size arm_vectorirq, . - arm_vectorirq
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.align 5
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@ -394,6 +402,8 @@ arm_vectorsvc:
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.type arm_vectordata, %function
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arm_vectordata:
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.cfi_sections .debug_frame
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.cfi_startproc
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/* Save the LR and SPSR onto the SYS mode stack before switch. */
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@ -437,6 +447,11 @@ arm_vectordata:
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mrc CP15_DFSR(r2) /* Get r2=DFSR */
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mov r4, sp /* Save the SP in a preserved register */
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bic sp, sp, #7 /* Force 8-byte alignment */
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mov fp, r0
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.cfi_def_cfa fp, 0 /* Register in fp, so we just set fp as frame */
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.cfi_offset pc, REG_PC * 4
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.cfi_offset sp, REG_SP * 4
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.cfi_offset lr, REG_LR * 4
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bl arm_dataabort /* Call the handler */
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mov sp, r4 /* Restore the possibly unaligned stack pointer */
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@ -465,6 +480,7 @@ arm_vectordata:
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/* Restore the CPSR, SYS mode registers and return. */
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rfeia r14
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.cfi_endproc
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.size arm_vectordata, . - arm_vectordata
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.align 5
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@ -485,6 +501,8 @@ arm_vectordata:
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.type arm_vectorprefetch, %function
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arm_vectorprefetch:
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.cfi_sections .debug_frame
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.cfi_startproc
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/* Save the LR and SPSR onto the SYS mode stack before switch. */
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@ -522,6 +540,11 @@ arm_vectorprefetch:
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mrc CP15_IFSR(r2) /* Get r2=IFSR */
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mov r4, sp /* Save the SP in a preserved register */
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bic sp, sp, #7 /* Force 8-byte alignment */
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mov fp, r0
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.cfi_def_cfa fp, 0 /* Register in fp, so we just set fp as frame */
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.cfi_offset pc, REG_PC * 4
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.cfi_offset sp, REG_SP * 4
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.cfi_offset lr, REG_LR * 4
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bl arm_prefetchabort /* Call the handler */
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mov sp, r4 /* Restore the possibly unaligned stack pointer */
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@ -550,6 +573,7 @@ arm_vectorprefetch:
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/* Restore the CPSR, SYS mode registers and return. */
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rfeia r14
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.cfi_endproc
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.size arm_vectorprefetch, . - arm_vectorprefetch
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.align 5
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@ -568,7 +592,8 @@ arm_vectorprefetch:
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.type arm_vectorundefinsn, %function
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arm_vectorundefinsn:
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.cfi_sections .debug_frame
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.cfi_startproc
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/* Save the LR and SPSR onto the SYS mode stack before switch. */
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srsdb sp!, #PSR_MODE_SYS
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@ -602,6 +627,11 @@ arm_vectorundefinsn:
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mov r0, sp /* Get r0=xcp */
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mov r4, sp /* Save the SP in a preserved register */
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bic sp, sp, #7 /* Force 8-byte alignment */
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mov fp, r0
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.cfi_def_cfa fp, 0 /* Register in fp, so we just set fp as frame */
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.cfi_offset pc, REG_PC * 4
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.cfi_offset sp, REG_SP * 4
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.cfi_offset lr, REG_LR * 4
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bl arm_undefinedinsn /* Call the handler */
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mov sp, r4 /* Restore the possibly unaligned stack pointer */
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@ -630,6 +660,7 @@ arm_vectorundefinsn:
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/* Restore the CPSR, SYS mode registers and return. */
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rfeia r14
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.cfi_endproc
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.size arm_vectorundefinsn, . - arm_vectorundefinsn
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.align 5
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@ -650,6 +681,8 @@ arm_vectorundefinsn:
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.type arm_vectorfiq, %function
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arm_vectorfiq:
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.cfi_sections .debug_frame
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.cfi_startproc
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#if defined(CONFIG_ARCH_TRUSTZONE_SECURE) || defined(CONFIG_ARCH_HIPRI_INTERRUPT)
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/* Save the LR and SPSR onto the SYS mode stack before switch. */
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@ -692,6 +725,11 @@ arm_vectorfiq:
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#endif
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bic sp, sp, #7 /* Force 8-byte alignment */
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mov fp, r0
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.cfi_def_cfa fp, 0 /* Register in fp, so we just set fp as frame */
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.cfi_offset pc, REG_PC * 4
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.cfi_offset sp, REG_SP * 4
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.cfi_offset lr, REG_LR * 4
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bl arm_decodefiq /* Call the handler */
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mov sp, r4 /* Restore the possibly unaligned stack pointer */
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@ -731,6 +769,7 @@ arm_vectorfiq:
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#else
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subs pc, lr, #4
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#endif
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.cfi_endproc
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.size arm_vectorfiq, . - arm_vectorfiq
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/****************************************************************************
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@ -121,7 +121,8 @@
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.type exception_common, function
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#endif
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exception_common:
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.cfi_sections .debug_frame
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.cfi_startproc
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mrs r0, ipsr /* R0=exception number */
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mrs r12, control /* R12=control */
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@ -199,7 +200,11 @@ exception_common:
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mov sp, r2 /* Instantiate the aligned stack */
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3:
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#endif
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mov fp, r1
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.cfi_def_cfa r4, 0 /* Register in fp, so we just set fp as frame */
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.cfi_offset pc, REG_PC * 4
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.cfi_offset sp, REG_SP * 4
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.cfi_offset lr, REG_LR * 4
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bl arm_doirq /* R0=IRQ, R1=register save (msp) */
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/* On return from arm_doirq, R0 will hold a pointer to register context
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@ -235,6 +240,7 @@ exception_common:
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*/
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bx r14 /* And return */
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.cfi_endproc
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.size exception_common, .-exception_common
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@ -114,7 +114,8 @@
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.thumb_func
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.type exception_common, function
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exception_common:
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.cfi_sections .debug_frame
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.cfi_startproc
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mrs r12, control /* R12=control */
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/* Complete the context save */
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@ -209,7 +210,11 @@ exception_common:
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mov sp, r2 /* Instantiate the aligned stack */
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3:
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#endif
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||||
mov fp, r1
|
||||
.cfi_def_cfa fp, 0 /* Register in fp, so we just set fp as frame */
|
||||
.cfi_offset pc, REG_PC * 4
|
||||
.cfi_offset sp, REG_SP * 4
|
||||
.cfi_offset lr, REG_LR * 4
|
||||
bl arm_doirq /* R0=IRQ, R1=register save (msp) */
|
||||
|
||||
/* On return from arm_doirq, R0 will hold a pointer to register context
|
||||
|
|
@ -255,7 +260,7 @@ exception_common:
|
|||
*/
|
||||
|
||||
bx r14 /* And return */
|
||||
|
||||
.cfi_endproc
|
||||
.size exception_common, .-exception_common
|
||||
|
||||
/****************************************************************************
|
||||
|
|
|
|||
|
|
@ -106,6 +106,8 @@
|
|||
.align 8
|
||||
|
||||
exception_common:
|
||||
.cfi_sections .debug_frame
|
||||
.cfi_startproc
|
||||
|
||||
#ifdef CONFIG_ARCH_KERNEL_STACK
|
||||
/* Take the kernel stack into use */
|
||||
|
|
@ -200,6 +202,10 @@ handle_irq:
|
|||
|
||||
mv a0, s2 /* exception cause */
|
||||
mv a1, sp /* context = sp */
|
||||
mv fp, a1 /* Use fp to debug frame */
|
||||
.cfi_def_cfa fp, 0 /* Register in fp, so we just set fp as frame */
|
||||
.cfi_offset x2, 8 /* Toolchain not support macro, is REG_X2 * 4 */
|
||||
.cfi_offset ra, 0 /* Toolchain not support macro, is REG_EPC * 4 */
|
||||
|
||||
#if CONFIG_ARCH_INTERRUPTSTACK > 15
|
||||
|
||||
|
|
@ -274,6 +280,7 @@ return_from_exception:
|
|||
/* Return from exception */
|
||||
|
||||
ERET
|
||||
.cfi_endproc
|
||||
|
||||
/****************************************************************************
|
||||
* Function: riscv_jump_to_user
|
||||
|
|
|
|||
Loading…
Reference in a new issue