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author | H. Peter Anvin <hpa@zytor.com> | 2003-11-24 22:07:26 +0000 |
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committer | H. Peter Anvin <hpa@zytor.com> | 2003-11-24 22:07:26 +0000 |
commit | 79b071e5acba1a3bc6e6e4c8e354e0b1630676fb (patch) | |
tree | bb770b0b24a25eeb12a5ac88c9c65269f34e6438 | |
parent | 8fede992df66061c37671ed1e7b44e5321837c65 (diff) | |
download | klibc-79b071e5acba1a3bc6e6e4c8e354e0b1630676fb.tar.gz |
Add pipe.c missing from previous checkinklibc-0.86
-rw-r--r-- | klibc/arch/ia64/pipe.c | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/klibc/arch/ia64/pipe.c b/klibc/arch/ia64/pipe.c new file mode 100644 index 0000000000000..5f5dd05727edd --- /dev/null +++ b/klibc/arch/ia64/pipe.c @@ -0,0 +1,42 @@ +/* + * pipe.c + */ + +#include "syscommon.h" +#include <klibc/archsys.h> + +#define ASM_CLOBBERS ,"out2", "out3", "out4", "out5", "out6", "out7", \ + /* Non-stacked integer registers, minus r8, r9, r10, r15. */ \ + "r2", "r3", "r11", "r12", "r13", "r14", "r16", "r17", "r18", \ + "r19", "r20", "r21", "r22", "r23", "r24", "r25", "r26", "r27", \ + "r28", "r29", "r30", "r31", \ + /* Predicate registers. */ \ + "p6", "p7", "p8", "p9", "p10", "p11", "p12", "p13", "p14", "p15", \ + /* Non-rotating fp registers. */ \ + "f6", "f7", "f8", "f9", "f10", "f11", "f12", "f13", "f14", "f15", \ + /* Branch registers. */ \ + "b6", "b7" + +int pipe(int *filedes) +{ + register long _r8 asm("r8"); + register long _r9 asm("r9"); + register long _r10 asm("r10"); + register long _r15 asm("r15") = __NR_pipe; + register long _out0 asm ("out0") = (long)filedes; + long _retval; + __asm __volatile (__IA64_BREAK + : "=r" (_r8), "=r" (_r10), "=r" (_r15), + "=r" (_out0) + : "2" (_r15), "3" (_out0) + : "memory" ASM_CLOBBERS); + if (_r10 == -1) { + errno = _r8; + _retval = -1; + } else { + filedes[0] = _r8; + filedes[1] = _r9; + _retval = 0; + } + return _retval; +} |