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- /* This file is based on the asm/unistd.h kernel header file.
- * Including asm/unistd.h is hereby officially forbidden.
- * Don't do it. It is bad for you. */
- #include <features.h>
- /* FIXME: perhaps sh needs separate PIC syscalls? */
- #define __syscall_return(type, res) \
- do { \
- if ((unsigned long)(res) >= (unsigned long)(-125)) { \
- /* Avoid using "res" which is declared to be in register r0; \
- errno might expand to a function call and clobber it. */ \
- int __err = -(res); \
- errno = __err; \
- res = -1; \
- } \
- return (type) (res); \
- } while (0)
- /* XXX - _foo needs to be __foo, while __NR_bar could be _NR_bar. */
- #define _syscall0(type,name) \
- type name(void) \
- { \
- register long __sc0 __asm__ ("r3") = __NR_##name; \
- __asm__ __volatile__ ("trapa #0x10" \
- : "=z" (__sc0) \
- : "0" (__sc0) \
- : "memory" ); \
- __syscall_return(type,__sc0); \
- }
- #define _syscall1(type,name,type1,arg1) \
- type name(type1 arg1) \
- { \
- register long __sc0 __asm__ ("r3") = __NR_##name; \
- register long __sc4 __asm__ ("r4") = (long) arg1; \
- __asm__ __volatile__ ("trapa #0x11" \
- : "=z" (__sc0) \
- : "0" (__sc0), "r" (__sc4) \
- : "memory"); \
- __syscall_return(type,__sc0); \
- }
- #define _syscall2(type,name,type1,arg1,type2,arg2) \
- type name(type1 arg1,type2 arg2) \
- { \
- register long __sc0 __asm__ ("r3") = __NR_##name; \
- register long __sc4 __asm__ ("r4") = (long) arg1; \
- register long __sc5 __asm__ ("r5") = (long) arg2; \
- __asm__ __volatile__ ("trapa #0x12" \
- : "=z" (__sc0) \
- : "0" (__sc0), "r" (__sc4), "r" (__sc5) \
- : "memory"); \
- __syscall_return(type,__sc0); \
- }
- #define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \
- type name(type1 arg1,type2 arg2,type3 arg3) \
- { \
- register long __sc0 __asm__ ("r3") = __NR_##name; \
- register long __sc4 __asm__ ("r4") = (long) arg1; \
- register long __sc5 __asm__ ("r5") = (long) arg2; \
- register long __sc6 __asm__ ("r6") = (long) arg3; \
- __asm__ __volatile__ ("trapa #0x13" \
- : "=z" (__sc0) \
- : "0" (__sc0), "r" (__sc4), "r" (__sc5), "r" (__sc6) \
- : "memory"); \
- __syscall_return(type,__sc0); \
- }
- #define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \
- type name (type1 arg1, type2 arg2, type3 arg3, type4 arg4) \
- { \
- register long __sc0 __asm__ ("r3") = __NR_##name; \
- register long __sc4 __asm__ ("r4") = (long) arg1; \
- register long __sc5 __asm__ ("r5") = (long) arg2; \
- register long __sc6 __asm__ ("r6") = (long) arg3; \
- register long __sc7 __asm__ ("r7") = (long) arg4; \
- __asm__ __volatile__ ("trapa #0x14" \
- : "=z" (__sc0) \
- : "0" (__sc0), "r" (__sc4), "r" (__sc5), "r" (__sc6), \
- "r" (__sc7) \
- : "memory" ); \
- __syscall_return(type,__sc0); \
- }
- #define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4,type5,arg5) \
- type name (type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5) \
- { \
- register long __sc3 __asm__ ("r3") = __NR_##name; \
- register long __sc4 __asm__ ("r4") = (long) arg1; \
- register long __sc5 __asm__ ("r5") = (long) arg2; \
- register long __sc6 __asm__ ("r6") = (long) arg3; \
- register long __sc7 __asm__ ("r7") = (long) arg4; \
- register long __sc0 __asm__ ("r0") = (long) arg5; \
- __asm__ __volatile__ ("trapa #0x15" \
- : "=z" (__sc0) \
- : "0" (__sc0), "r" (__sc4), "r" (__sc5), "r" (__sc6), "r" (__sc7), \
- "r" (__sc3) \
- : "memory" ); \
- __syscall_return(type,__sc0); \
- }
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