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cortexm_common: don't compare with r13/sp in assembly, fix #3664

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This commit is contained in:
Daniel Krebs 2015-08-19 20:52:29 +02:00
parent c83ba9e8f2
commit cb4aec676b
1 changed files with 3 additions and 2 deletions
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5
cpu/cortexm_common/vectors_cortexm.c
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@ -134,7 +134,8 @@ void hard_fault_default(void)
"mrs r0, psp \n" /* r0 = psp */
" out: \n" /* } */
"mov r1, #0 \n" /* corrupted = false */
"cmp r0, sp \n" /* If msp is active stack- */
"mov r2, sp \n" /* Cmp with SP is deprecated */
"cmp r0, r2 \n" /* If msp is active stack- */
"bne hardfault \n" /* pointer, check if valid so */
"cmp r0, %[eram] \n" /* so calling c-func works . */
"bge fix_msp \n" /* if(r0 == msp) { */
@ -150,7 +151,7 @@ void hard_fault_default(void)
: [sram] "r" (&_sram),
[eram] "r" (&_eram),
[estack] "r" (&_estack)
: "r0","r1"
: "r0","r1","r2"
);
}