summaryrefslogtreecommitdiff
path: root/libc/sysdeps/linux/mips
diff options
context:
space:
mode:
Diffstat (limited to 'libc/sysdeps/linux/mips')
-rw-r--r--libc/sysdeps/linux/mips/Makefile4
-rw-r--r--libc/sysdeps/linux/mips/pipe.S39
2 files changed, 41 insertions, 2 deletions
diff --git a/libc/sysdeps/linux/mips/Makefile b/libc/sysdeps/linux/mips/Makefile
index e207ae2d0..85c605aa8 100644
--- a/libc/sysdeps/linux/mips/Makefile
+++ b/libc/sysdeps/linux/mips/Makefile
@@ -23,10 +23,10 @@ ASFLAGS=$(CFLAGS)
CRT0_SRC = crt0.S
CRT0_OBJ = crt0.o crt1.o
-SSRC=bsd-_setjmp.S bsd-setjmp.S setjmp.S clone.S fork.S syscall.S
+SSRC=bsd-_setjmp.S bsd-setjmp.S setjmp.S clone.S fork.S syscall.S pipe.S
SOBJS=$(patsubst %.S,%.o, $(SSRC))
-CSRC=__longjmp.c brk.c vfork.c setjmp_aux.c _mmap.c pipe.c __syscall_error.c cacheflush.c
+CSRC=__longjmp.c brk.c vfork.c setjmp_aux.c _mmap.c __syscall_error.c cacheflush.c
COBJS=$(patsubst %.c,%.o, $(CSRC))
OBJS=$(SOBJS) $(MOBJ) $(COBJS)
diff --git a/libc/sysdeps/linux/mips/pipe.S b/libc/sysdeps/linux/mips/pipe.S
new file mode 100644
index 000000000..039b24305
--- /dev/null
+++ b/libc/sysdeps/linux/mips/pipe.S
@@ -0,0 +1,39 @@
+/* pipe system call for Linux/MIPS */
+
+/*see uClibc's sh/pipe.c and glibc-2.2.4's mips/pipe.S */
+
+#include <features.h>
+#include <asm/asm.h>
+#include <asm/unistd.h>
+#include <asm/mipsregs.h>
+#include <asm/regdef.h>
+
+ .globl pipe
+ .ent pipe, 0
+pipe:
+#ifdef PROF
+ .set noat
+ move $1,ra
+ subu sp,sp,8 # _mcount pops 2 words from stack
+ jal _mcount
+ .set at
+#endif
+ addiu sp,sp,-24
+ sw a0,16(sp)
+ li v0,__NR_pipe
+ syscall
+ beqz a3, 1f
+ la t3, errno
+ sw v0, (t3)
+ li v0, -1
+ b 2f
+1:
+ lw a0, 16(sp)
+ sw v0, 0(a0)
+ sw v1, 4(a0)
+ li v0, 0
+2:
+ addiu sp,sp,24
+ j ra
+ .end pipe
+ .size pipe,.-pipe