diff options
Diffstat (limited to 'mit-pthreads/machdep/syscall-ip22-irix-5.2.S')
| -rw-r--r-- | mit-pthreads/machdep/syscall-ip22-irix-5.2.S | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/mit-pthreads/machdep/syscall-ip22-irix-5.2.S b/mit-pthreads/machdep/syscall-ip22-irix-5.2.S new file mode 100644 index 00000000000..ded0fc55e38 --- /dev/null +++ b/mit-pthreads/machdep/syscall-ip22-irix-5.2.S @@ -0,0 +1,106 @@ +#include <sys.s> +#include <sys/regdef.h> + +/* + Kernel syscall interface: + Input: + v0 syscall number + Output: + + This macro is similar to SYSCALL in sys/syscall.h, but not completely. + There's room for optimization, if we assume this will continue to + be assembled as one file. + + Compile with -DPIC for pic code. +*/ + +#ifdef PIC +#define PICOPT .option pic2 +#else +#define PICOPT +#endif + + +#define YSYSCALL(x) \ + PICOPT; \ + .globl machdep_sys_##x; \ + .ent machdep_sys_##x, 0; \ +machdep_sys_##x:; \ + .frame sp,0,ra; \ + .set noreorder; \ + li v0, SYS_##x; \ + syscall; \ + bne a3, zero, 1b; \ + nop; \ + j ra; \ + nop; \ + .end machdep_sys_##x + +/* ========================================================================== + * error code for all syscalls. The error value is returned as the negative + * of the errno value. + */ + +1: + subu v0,zero,v0; + j ra; + +/* ========================================================================== + * lstat + */ + PICOPT; + .globl machdep_sys_lstat; + .ent machdep_sys_lstat, 0; +machdep_sys_lstat:; + .frame sp,0,ra; + .set noreorder; + move a2, a1 + move a1, a0 + li a0, 2 + li v0, SYS_lxstat; + syscall; + bne a3, zero, 1b; + nop; + j ra; + nop; + .end machdep_sys_lstat + +/* ========================================================================== + * fstat + */ + PICOPT; + .globl machdep_sys_fstat; + .ent machdep_sys_fstat, 0; +machdep_sys_fstat:; + .frame sp,0,ra; + .set noreorder; + move a2, a1 + move a1, a0 + li a0, 2 + li v0, SYS_fxstat; + syscall; + bne a3, zero, 1b; + nop; + j ra; + nop; + .end machdep_sys_fstat + +/* ========================================================================== + * stat + */ + PICOPT; + .globl machdep_sys_stat; + .ent machdep_sys_stat, 0; +machdep_sys_stat:; + .frame sp,0,ra; + .set noreorder; + move a2, a1 + move a1, a0 + li a0, 2 + li v0, SYS_xstat; + syscall; + bne a3, zero, 1b; + nop; + j ra; + nop; + .end machdep_sys_stat |