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Unified Diff: fusl/src/thread/arm/syscall_cp.s

Issue 1573973002: Add a "fork" of musl as //fusl. (Closed) Base URL: https://github.com/domokit/mojo.git@master
Patch Set: Created 4 years, 11 months ago
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Index: fusl/src/thread/arm/syscall_cp.s
diff --git a/fusl/src/thread/arm/syscall_cp.s b/fusl/src/thread/arm/syscall_cp.s
new file mode 100644
index 0000000000000000000000000000000000000000..a5730c08b826334f550055f31703e1c69227af27
--- /dev/null
+++ b/fusl/src/thread/arm/syscall_cp.s
@@ -0,0 +1,29 @@
+.syntax unified
+.global __cp_begin
+.hidden __cp_begin
+.global __cp_end
+.hidden __cp_end
+.global __cp_cancel
+.hidden __cp_cancel
+.hidden __cancel
+.global __syscall_cp_asm
+.hidden __syscall_cp_asm
+.type __syscall_cp_asm,%function
+__syscall_cp_asm:
+ mov ip,sp
+ stmfd sp!,{r4,r5,r6,r7,lr}
+__cp_begin:
+ ldr r0,[r0]
+ cmp r0,#0
+ blne __cp_cancel
+ mov r7,r1
+ mov r0,r2
+ mov r1,r3
+ ldmfd ip,{r2,r3,r4,r5,r6}
+ svc 0
+__cp_end:
+ ldmfd sp!,{r4,r5,r6,r7,lr}
+ bx lr
+__cp_cancel:
+ ldmfd sp!,{r4,r5,r6,r7,lr}
+ b __cancel
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