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armv8-m:arch libc function need save ip register use pacbti 

Signed-off-by: anjiahao <anjiahao@xiaomi.com>
This commit is contained in:
anjiahao 2024-01-22 16:48:54 +08:00 committed by Xiang Xiao
parent df090a86f9
commit e085f0ee80
1 changed files with 4 additions and 0 deletions
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4
libs/libc/machine/arm/armv8-m/gnu/arch_memcpy.S
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@ -119,6 +119,7 @@ memcpy:
# else # else
pac ip, lr, sp pac ip, lr, sp
# endif /* __ARM_FEATURE_BTI_DEFAULT */ # endif /* __ARM_FEATURE_BTI_DEFAULT */
push {ip}
#endif /* __ARM_FEATURE_PAC_DEFAULT */ #endif /* __ARM_FEATURE_PAC_DEFAULT */
#ifdef __ARM_FEATURE_MVE #ifdef __ARM_FEATURE_MVE
mov r3, lr mov r3, lr
@ -130,6 +131,7 @@ memcpy:
letp lr, 1b letp lr, 1b
2: 2:
#if __ARM_FEATURE_PAC_DEFAULT #if __ARM_FEATURE_PAC_DEFAULT
pop {ip}
aut ip, lr, sp aut ip, lr, sp
#endif /* __ARM_FEATURE_PAC_DEFAULT */ #endif /* __ARM_FEATURE_PAC_DEFAULT */
bx r3 bx r3
@ -243,6 +245,7 @@ memcpy:
pop {r0} pop {r0}
#endif #endif
#if __ARM_FEATURE_PAC_DEFAULT #if __ARM_FEATURE_PAC_DEFAULT
pop {ip}
aut ip, lr, sp aut ip, lr, sp
#endif /* __ARM_FEATURE_PAC_DEFAULT */ #endif /* __ARM_FEATURE_PAC_DEFAULT */
bx lr bx lr
@ -387,6 +390,7 @@ memcpy:
pop {r0} pop {r0}
#endif #endif
#if __ARM_FEATURE_PAC_DEFAULT #if __ARM_FEATURE_PAC_DEFAULT
pop {ip}
aut ip, lr, sp aut ip, lr, sp
#endif /* __ARM_FEATURE_PAC_DEFAULT */ #endif /* __ARM_FEATURE_PAC_DEFAULT */
bx lr bx lr