libc: Add missing pipe2() declaration and implementation.
Change-Id: Iacb914bd6ac5adc60c5671e6fef680ede21f9b0c
diff --git a/libc/arch-sh/syscalls/pipe2.S b/libc/arch-sh/syscalls/pipe2.S
new file mode 100644
index 0000000..f6d9964
--- /dev/null
+++ b/libc/arch-sh/syscalls/pipe2.S
@@ -0,0 +1,32 @@
+/* autogenerated by gensyscalls.py */
+#include <sys/linux-syscalls.h>
+
+ .text
+ .type pipe2, @function
+ .globl pipe2
+ .align 4
+
+pipe2:
+
+ /* invoke trap */
+ mov.l 0f, r3 /* trap num */
+ trapa #(2 + 0x10)
+
+ /* check return value */
+ cmp/pz r0
+ bt __NR_pipe2_end
+
+ /* keep error number */
+ sts.l pr, @-r15
+ mov.l 1f, r1
+ jsr @r1
+ mov r0, r4
+ lds.l @r15+, pr
+
+__NR_pipe2_end:
+ rts
+ nop
+
+ .align 2
+0: .long __NR_pipe2
+1: .long __set_syscall_errno