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arm: Simplify default exception handling

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Do not clear the VFP context pointer twice.
This commit is contained in:
Sebastian Huber
2024-08-28 04:19:39 +02:00
parent 5d86677dfe
commit 7915631552
1 changed files with 2 additions and 7 deletions
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9
cpukit/score/cpu/arm/armv4-exception-default.S
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@@ -98,7 +98,7 @@ _ARMV4_Exception_fiq_default:
save_more_context:
/* Save more context */
/* Save more context, clear VFP context pointer */
mov r2, lr
mrs r3, spsr
mrs r7, cpsr
@@ -115,11 +115,6 @@ save_more_context:
/* Argument for high level handler */
mov r0, sp
/* Clear VFP context pointer */
add r3, sp, #ARM_EXCEPTION_FRAME_VFP_CONTEXT_OFFSET
mov r1, #0
str r1, [r3]
#ifdef ARM_MULTILIB_VFP
/* Ensure that the FPU is enabled */
vmrs r1, FPEXC
@@ -130,7 +125,7 @@ save_more_context:
sub sp, #(ARM_VFP_CONTEXT_SIZE + 8)
add r4, sp, #8
bic r4, r4, #7
str r4, [r3]
str r4, [r0, #ARM_EXCEPTION_FRAME_VFP_CONTEXT_OFFSET]
vmrs r2, FPSCR
stmia r4!, {r1-r2}
vstmia r4!, {d0-d15}