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Make sp 8 byte aligned in invokeNative on ARM (#697)

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Make sp 8 byte aligned in invokeNative assembly on ARM.

Signed-off-by: Huang Qi <huangqi3@xiaomi.com>
This commit is contained in:
Huang Qi 2021-08-18 10:21:38 +08:00 committed by GitHub
parent db695fada4
commit 6a7fd3e688
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GPG Key ID: 4AEE18F83AFDEB23
3 changed files with 6 additions and 0 deletions
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2
core/iwasm/common/arch/invokeNative_arm_vfp.s
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@ -22,6 +22,7 @@ _invokeNative:
*/ */
stmfd sp!, {r4, r5, r6, r7, lr} stmfd sp!, {r4, r5, r6, r7, lr}
sub sp, sp, #4 /* make sp 8 byte aligned */
mov ip, r0 /* ip = function ptr */ mov ip, r0 /* ip = function ptr */
mov r4, r1 /* r4 = argv */ mov r4, r1 /* r4 = argv */
mov r5, r2 /* r5 = nstacks */ mov r5, r2 /* r5 = nstacks */
@ -79,6 +80,7 @@ call_func:
mov sp, r6 /* restore sp */ mov sp, r6 /* restore sp */
return: return:
add sp, sp, #4 /* make sp 8 byte aligned */
ldmfd sp!, {r4, r5, r6, r7, lr} ldmfd sp!, {r4, r5, r6, r7, lr}
bx lr bx lr

2
core/iwasm/common/arch/invokeNative_thumb.s
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@ -23,6 +23,7 @@ _invokeNative:
push {r4, r5, r6, r7} push {r4, r5, r6, r7}
push {lr} push {lr}
sub sp, sp, #4 /* make sp 8 byte aligned */
mov ip, r0 /* ip = function ptr */ mov ip, r0 /* ip = function ptr */
mov r4, r1 /* r4 = argv */ mov r4, r1 /* r4 = argv */
mov r5, r2 /* r5 = argc */ mov r5, r2 /* r5 = argc */
@ -83,6 +84,7 @@ call_func:
add sp, sp, r6 /* restore sp */ add sp, sp, r6 /* restore sp */
return: return:
add sp, sp, #4 /* make sp 8 byte aligned */
pop {r3} pop {r3}
pop {r4, r5, r6, r7} pop {r4, r5, r6, r7}
mov lr, r3 mov lr, r3

2
core/iwasm/common/arch/invokeNative_thumb_vfp.s
View File

@ -23,6 +23,7 @@ _invokeNative:
push {r4, r5, r6, r7} push {r4, r5, r6, r7}
push {lr} push {lr}
sub sp, sp, #4 /* make sp 8 byte aligned */
mov ip, r0 /* ip = function ptr */ mov ip, r0 /* ip = function ptr */
mov r4, r1 /* r4 = argv */ mov r4, r1 /* r4 = argv */
mov r5, r2 /* r5 = nstacks */ mov r5, r2 /* r5 = nstacks */
@ -91,6 +92,7 @@ call_func:
mov sp, r7 /* restore sp */ mov sp, r7 /* restore sp */
return: return:
add sp, sp, #4 /* make sp 8 byte aligned */
pop {r3} pop {r3}
pop {r4, r5, r6, r7} pop {r4, r5, r6, r7}
mov lr, r3 mov lr, r3