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/* 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
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