X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=src%2Fthread%2Farm%2Fatomics.s;h=da50508d8d45ceb659fdd2ea4883a0b60f979925;hb=85050ac5a2677a8ebf2722e93b5c037ec675c036;hp=5c5b0e3ed481ee6f78a97509bb7892acac27b1e6;hpb=e617b9eea9d45b170eabadf5ca96ca0536c538be;p=musl

diff --git a/src/thread/arm/atomics.s b/src/thread/arm/atomics.s
index 5c5b0e3e..da50508d 100644
--- a/src/thread/arm/atomics.s
+++ b/src/thread/arm/atomics.s
@@ -1,111 +1,106 @@
 .syntax unified
 .text
 
-.global __a_barrier
-.hidden __a_barrier
-.type __a_barrier,%function
-__a_barrier:
-	ldr ip,1f
-	ldr ip,[pc,ip]
-	add pc,pc,ip
-1:	.word __a_barrier_ptr-1b
 .global __a_barrier_dummy
 .hidden __a_barrier_dummy
+.type __a_barrier_dummy,%function
 __a_barrier_dummy:
 	bx lr
+
 .global __a_barrier_oldkuser
 .hidden __a_barrier_oldkuser
+.type __a_barrier_oldkuser,%function
 __a_barrier_oldkuser:
 	push {r0,r1,r2,r3,ip,lr}
 	mov r1,r0
 	mov r2,sp
 	ldr ip,=0xffff0fc0
-	mov lr,pc
-	mov pc,ip
+	bl 1f
 	pop {r0,r1,r2,r3,ip,lr}
 	bx lr
+1:	bx ip
+
 .global __a_barrier_v6
 .hidden __a_barrier_v6
+.type __a_barrier_v6,%function
 __a_barrier_v6:
+	.arch armv6t2
 	mcr p15,0,r0,c7,c10,5
 	bx lr
+
 .global __a_barrier_v7
 .hidden __a_barrier_v7
+.type __a_barrier_v7,%function
 __a_barrier_v7:
-	.word 0xf57ff05b        /* dmb ish */
+	.arch armv7-a
+	dmb ish
 	bx lr
 
-.global __a_cas
-.hidden __a_cas
-.type __a_cas,%function
-__a_cas:
-	ldr ip,1f
-	ldr ip,[pc,ip]
-	add pc,pc,ip
-1:	.word __a_cas_ptr-1b
 .global __a_cas_dummy
 .hidden __a_cas_dummy
+.type __a_cas_dummy,%function
 __a_cas_dummy:
 	mov r3,r0
 	ldr r0,[r2]
 	subs r0,r3,r0
 	streq r1,[r2]
 	bx lr
+
 .global __a_cas_v6
 .hidden __a_cas_v6
+.type __a_cas_v6,%function
 __a_cas_v6:
+	.arch armv6t2
 	mov r3,r0
 	mcr p15,0,r0,c7,c10,5
-1:	.word 0xe1920f9f        /* ldrex r0,[r2] */
+1:	ldrex r0,[r2]
 	subs r0,r3,r0
-	.word 0x01820f91        /* strexeq r0,r1,[r2] */
+	strexeq r0,r1,[r2]
 	teqeq r0,#1
 	beq 1b
 	mcr p15,0,r0,c7,c10,5
 	bx lr
+
 .global __a_cas_v7
 .hidden __a_cas_v7
+.type __a_cas_v7,%function
 __a_cas_v7:
+	.arch armv7-a
 	mov r3,r0
-	.word 0xf57ff05b        /* dmb ish */
-1:	.word 0xe1920f9f        /* ldrex r0,[r2] */
+	dmb ish
+1:	ldrex r0,[r2]
 	subs r0,r3,r0
-	.word 0x01820f91        /* strexeq r0,r1,[r2] */
+	strexeq r0,r1,[r2]
 	teqeq r0,#1
 	beq 1b
-	.word 0xf57ff05b        /* dmb ish */
+	dmb ish
 	bx lr
 
-.global __aeabi_read_tp
-.type __aeabi_read_tp,%function
-__aeabi_read_tp:
-
-.global __a_gettp
-.hidden __a_gettp
-.type __a_gettp,%function
-__a_gettp:
-	ldr r0,1f
-	ldr r0,[pc,r0]
-	add pc,pc,r0
-1:	.word __a_gettp_ptr-1b
-.global __a_gettp_dummy
-.hidden __a_gettp_dummy
-__a_gettp_dummy:
+.global __a_gettp_cp15
+.hidden __a_gettp_cp15
+.type __a_gettp_cp15,%function
+__a_gettp_cp15:
 	mrc p15,0,r0,c13,c0,3
 	bx lr
 
+/* Tag this file with minimum ISA level so as not to affect linking. */
+.object_arch armv4t
+.eabi_attribute 6,2
+
 .data
+.align 2
+
 .global __a_barrier_ptr
 .hidden __a_barrier_ptr
 __a_barrier_ptr:
-	.word 0
+	.word __a_barrier_dummy
 
 .global __a_cas_ptr
 .hidden __a_cas_ptr
 __a_cas_ptr:
-	.word 0
+	.word __a_cas_dummy
 
 .global __a_gettp_ptr
 .hidden __a_gettp_ptr
 __a_gettp_ptr:
-	.word 0
+	.word __a_gettp_cp15