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-rw-r--r--sysdeps/unix/sysv/linux/loongarch/syscall_cancel.S50
1 files changed, 50 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/loongarch/syscall_cancel.S b/sysdeps/unix/sysv/linux/loongarch/syscall_cancel.S
new file mode 100644
index 0000000000..edea9632ff
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/loongarch/syscall_cancel.S
@@ -0,0 +1,50 @@
+/* Cancellable syscall wrapper.  Linux/loongarch version.
+   Copyright (C) 2023 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <sysdep.h>
+#include <descr-const.h>
+
+ENTRY (__syscall_cancel_arch)
+
+	.global __syscall_cancel_arch_start
+__syscall_cancel_arch_start:
+
+	/* if (*cancelhandling & CANCELED_BITMASK)
+	     __syscall_do_cancel()  */
+	ld.w	t0, a0, 0
+	andi	t0, t0, TCB_CANCELED_BITMASK
+	bnez	t0, 1f
+
+	/* Issue a 6 argument syscall.  */
+	move	t1, a1
+	move	a0, a2
+	move	a1, a3
+	move	a2, a4
+	move	a3, a5
+	move	a4, a6
+	move	a5, a7
+	move	a7, t1
+	syscall 0
+
+	.global __syscall_cancel_arch_end
+__syscall_cancel_arch_end:
+	jr	ra
+1:
+	b	__syscall_do_cancel
+
+END (__syscall_cancel_arch)