diff options
Diffstat (limited to 'mit-pthreads/machdep/syscall-template-ip22-irix-5.2.S')
| -rw-r--r-- | mit-pthreads/machdep/syscall-template-ip22-irix-5.2.S | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/mit-pthreads/machdep/syscall-template-ip22-irix-5.2.S b/mit-pthreads/machdep/syscall-template-ip22-irix-5.2.S new file mode 100644 index 00000000000..722b001671b --- /dev/null +++ b/mit-pthreads/machdep/syscall-template-ip22-irix-5.2.S @@ -0,0 +1,51 @@ +#include <sys.s> +#include <sys/regdef.h> +/* #include <sys/asm.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; + +#define XSYSCALL(x) YSYSCALL(x) + +XSYSCALL(SYSCALL_NAME) |