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Diffstat (limited to 'src/thread/loongarch64/syscall_cp.s')
-rw-r--r--src/thread/loongarch64/syscall_cp.s29
1 files changed, 29 insertions, 0 deletions
diff --git a/src/thread/loongarch64/syscall_cp.s b/src/thread/loongarch64/syscall_cp.s
new file mode 100644
index 00000000..c057a97b
--- /dev/null
+++ b/src/thread/loongarch64/syscall_cp.s
@@ -0,0 +1,29 @@
+.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:
+__cp_begin:
+	ld.w $a0, $a0, 0
+	bnez $a0, __cp_cancel
+	move $t8, $a1    # reserve system call number
+	move $a0, $a2
+	move $a1, $a3
+	move $a2, $a4
+	move $a3, $a5
+	move $a4, $a6
+	move $a5, $a7
+	move $a7, $t8
+	syscall 0
+__cp_end:
+	jr $ra
+__cp_cancel:
+	la.local $t8, __cancel
+	jr $t8