diff options
Diffstat (limited to 'nuttx/arch/arm/src/armv7-m/up_stackcheck.c')
| -rw-r--r-- | nuttx/arch/arm/src/armv7-m/up_stackcheck.c | 40 |
1 files changed, 0 insertions, 40 deletions
diff --git a/nuttx/arch/arm/src/armv7-m/up_stackcheck.c b/nuttx/arch/arm/src/armv7-m/up_stackcheck.c deleted file mode 100644 index e8f02a863..000000000 --- a/nuttx/arch/arm/src/armv7-m/up_stackcheck.c +++ /dev/null @@ -1,40 +0,0 @@ - - -void __cyg_profile_func_enter(void *func, void *caller) __attribute__((naked, no_instrument_function)); -void __cyg_profile_func_exit(void *func, void *caller) __attribute__((naked, no_instrument_function)); -void __stack_overflow_trap(void) __attribute__((naked, no_instrument_function)); - -void -__stack_overflow_trap(void) -{ - /* if we get here, the stack has overflowed */ - asm ( "b ."); -} - -void -__cyg_profile_func_enter(void *func, void *caller) -{ - asm volatile ( - " mrs r2, ipsr \n" /* Check whether we are in interrupt mode */ - " cmp r2, #0 \n" /* since we don't switch r10 on interrupt entry, we */ - " bne 2f \n" /* can't detect overflow of the interrupt stack. */ - " \n" - " sub r2, sp, #68 \n" /* compute stack pointer as though we just stacked a full frame */ - " mrs r1, control \n" /* Test CONTROL.FPCA to see whether we also need room for the FP */ - " tst r1, #4 \n" /* context. */ - " beq 1f \n" - " sub r2, r2, #136 \n" /* subtract FP context frame size */ - "1: \n" - " cmp r2, r10 \n" /* compare stack with limit */ - " bgt 2f \n" /* stack is above limit and thus OK */ - " b __stack_overflow_trap\n" - "2: \n" - " bx lr \n" - ); -} - -void -__cyg_profile_func_exit(void *func, void *caller) -{ - asm volatile("bx lr"); -} |