libc/machine:Add prefixes to libc functions implemented by arch

kasan does not instrument the assembly function,
so it is checked in advance before calling.
If Kasan is not turned on, the speed and space will
be almost unchanged under compiler optimization.

Signed-off-by: anjiahao <anjiahao@xiaomi.com>

libs/libc/machine/arm/armv7-m/gnu/arch_memchr.S

@@ -140,10 +140,10 @@
 	.thumb_func
 	.align 4
 	.p2align 4,,15
-	.global memchr
-	.type memchr,%function
+	.global ARCH_LIBCFUN(memchr)
+	.type ARCH_LIBCFUN(memchr),%function
 
-memchr:
+ARCH_LIBCFUN(memchr):
 	.cfi_sections .debug_frame
 	.cfi_startproc
 	/* Use a simple loop if there are less than 8 bytes to search.  */
@@ -272,7 +272,7 @@ memchr:
 	bx	lr
 
 	.cfi_endproc
-	.size	memchr, . - memchr
+	.size	ARCH_LIBCFUN(memchr), . - ARCH_LIBCFUN(memchr)
 
 #elif __ARM_ARCH_ISA_THUMB >= 2 && defined (__ARM_FEATURE_DSP)
 
@@ -295,9 +295,9 @@ memchr:
 	.thumb_func
 	.align 2
 	.p2align 4,,15
-	.global memchr
-	.type memchr,%function
-memchr:
+	.global ARCH_LIBCFUN(memchr)
+	.type ARCH_LIBCFUN(memchr),%function
+ARCH_LIBCFUN(memchr):
 	@ r0 = start of memory to scan
 	@ r1 = character to look for
 	@ r2 = length

libs/libc/machine/arm/armv7-m/gnu/arch_memcpy.S

@@ -96,11 +96,11 @@
 	.text
 	.section .text.memcpy
 	.align	2
-	.global	memcpy
+	.global	ARCH_LIBCFUN(memcpy)
 	.thumb
 	.thumb_func
-	.type	memcpy, %function
-memcpy:
+	.type	ARCH_LIBCFUN(memcpy), %function
+ARCH_LIBCFUN(memcpy):
 	@ r0: dst
 	@ r1: src
 	@ r2: len
@@ -355,6 +355,6 @@ memcpy:
 #endif
 	bx	lr
 
-	.size	memcpy, .-memcpy
+	.size	ARCH_LIBCFUN(memcpy), .-ARCH_LIBCFUN(memcpy)
 
 #endif

libs/libc/machine/arm/armv7-m/gnu/arch_memmove.S

@@ -35,11 +35,9 @@
 
 	.thumb
 	.syntax unified
-	.text
-	.section .text.memmove
-	.global memmove
-	.type	memmove, %function
-memmove:
+	.global ARCH_LIBCFUN(memmove)
+	.type	ARCH_LIBCFUN(memmove), %function
+ARCH_LIBCFUN(memmove):
 	cmp	r0, r1
 	push	{r4}
 	bls	3f
@@ -69,6 +67,6 @@ memmove:
 	bne	4b
 	pop	{r4}
 	bx	lr
-	.size memmove, . - memmove
+	.size ARCH_LIBCFUN(memmove), . - ARCH_LIBCFUN(memmove)
 
 #endif

libs/libc/machine/arm/armv7-m/gnu/arch_memset.S

@@ -35,11 +35,9 @@
 
 	.thumb
 	.syntax unified
-	.text
-	.section .text.memset
-	.global memset
-	.type	memset, %function
-memset:
+	.global ARCH_LIBCFUN(memset)
+	.type	ARCH_LIBCFUN(memset), %function
+ARCH_LIBCFUN(memset):
 	stmfd	sp!, {r0, r4-r7, lr}
 	rsb	r3, r0, #0
 	ands	r3, r3, #3
@@ -106,6 +104,6 @@ memset:
 	movs	r2, r2, lsl #2
 	strbcs	r1, [r0]
 	ldmfd	sp!, {r0, r4-r7, pc}
-	.size memset, . - memset
+	.size ARCH_LIBCFUN(memset), . - ARCH_LIBCFUN(memset)
 
 #endif

libs/libc/machine/arm/armv7-m/gnu/arch_strcmp.S

@@ -81,7 +81,7 @@
 
 	.thumb
 	.syntax unified
-def_fn strcmp
+def_fn ARCH_LIBCFUN(strcmp)
 	.cfi_sections .debug_frame
 	.cfi_startproc
 	eor	tmp1, src1, src2
@@ -413,6 +413,6 @@ def_fn strcmp
 	.cfi_def_cfa_offset 0
 	bx	lr
 	.cfi_endproc
-	.size strcmp, . - strcmp
+	.size ARCH_LIBCFUN(strcmp), . - ARCH_LIBCFUN(strcmp)
 
 #endif

libs/libc/machine/arm/armv7-m/gnu/arch_strcpy.S

@@ -62,11 +62,11 @@
     .text
     .section .text.strcpy
     .align  2
-    .global strcpy
+    .global ARCH_LIBCFUN(strcpy)
     .thumb
-    .type   strcpy, %function
+    .type   ARCH_LIBCFUN(strcpy), %function
 
-strcpy:
+ARCH_LIBCFUN(strcpy):
     push    {result, tmp1, tmp2, tmp3, src_offset}
     eor     tmp1, dst, src
     tst     tmp1, #3 

libs/libc/machine/arm/armv7-m/gnu/arch_strlen.S

@@ -108,7 +108,7 @@
 #define tmp1		r4		/* Overlaps const_0  */
 #define tmp2		r5
 
-def_fn	strlen p2align=6
+def_fn	ARCH_LIBCFUN(strlen) p2align=6
 	pld	[srcin, #0]
 	strd	r4, r5, [sp, #-8]!
 	bic	src, srcin, #7
@@ -186,6 +186,6 @@ def_fn	strlen p2align=6
 	movne	data1a, const_m1
 	mov	const_0, #0
 	b	.Lstart_realigned
-	.size	strlen, . - strlen
+	.size	ARCH_LIBCFUN(strlen), . - ARCH_LIBCFUN(strlen)
 
 #endif