97 lines
2.8 KiB
C
97 lines
2.8 KiB
C
/*
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* arch/i386/include/klibc/archsys.h
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*
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* Architecture-specific syscall definitions
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*/
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#ifndef _KLIBC_ARCHSYS_H
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#define _KLIBC_ARCHSYS_H
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/*
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* If we're compiling i386 in PIC mode, we need to treat %ebx
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* specially. Most of these are copied from the equivalent file in
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* newlib and were written by Werner Almesberger.
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*/
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#if defined(__PIC__)
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/* _syscall0() is the same as non-PIC */
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#undef _syscall1
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#define _syscall1(type,name,type1,arg1) \
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type name(type1 arg1) \
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{ \
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long __res; \
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__asm__ __volatile__ ("push %%ebx; movl %2,%%ebx; int $0x80; pop %%ebx" \
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: "=a" (__res) \
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: "0" (__NR_##name),"r" ((long)(arg1))); \
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__syscall_return(type,__res); \
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}
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#undef _syscall2
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#define _syscall2(type,name,type1,arg1,type2,arg2) \
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type name(type1 arg1,type2 arg2) \
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{ \
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long __res; \
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__asm__ __volatile__ ("push %%ebx; movl %2,%%ebx; int $0x80; pop %%ebx" \
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: "=a" (__res) \
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: "0" (__NR_##name),"r" ((long)(arg1)),"c" ((long)(arg2))); \
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__syscall_return(type,__res); \
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}
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#undef _syscall3
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#define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \
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type name(type1 arg1,type2 arg2,type3 arg3) \
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{ \
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long __res; \
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__asm__ __volatile__ ("push %%ebx; movl %2,%%ebx; int $0x80; pop %%ebx" \
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: "=a" (__res) \
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: "0" (__NR_##name),"r" ((long)(arg1)),"c" ((long)(arg2)), \
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"d" ((long)(arg3))); \
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__syscall_return(type,__res); \
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}
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#undef _syscall4
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#define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \
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type name (type1 arg1, type2 arg2, type3 arg3, type4 arg4) \
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{ \
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long __res; \
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__asm__ __volatile__ ("push %%ebx; movl %2,%%ebx; int $0x80; pop %%ebx" \
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: "=a" (__res) \
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: "0" (__NR_##name),"r" ((long)(arg1)),"c" ((long)(arg2)), \
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"d" ((long)(arg3)),"S" ((long)(arg4))); \
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__syscall_return(type,__res); \
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}
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#undef _syscall5
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#define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \
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type5,arg5) \
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type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5) \
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{ \
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long __res; \
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__asm__ __volatile__ ("push %%ebx; movl %2,%%ebx; int $0x80; pop %%ebx" \
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: "=a" (__res) \
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: "0" (__NR_##name),"m" ((long)(arg1)),"c" ((long)(arg2)), \
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"d" ((long)(arg3)),"S" ((long)(arg4)),"D" ((long)(arg5))); \
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__syscall_return(type,__res); \
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}
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#undef _syscall6
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#define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \
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type5,arg5,type6,arg6) \
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type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5,type6 arg6) \
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{ \
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long __res; \
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__asm__ __volatile__ ("push %%ebx; pushl %%ebp; movl %2,%%ebx; " \
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"movl %%eax,%%ebp; movl %1,%%eax; int $0x80; " \
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"pop %%ebp ; pop %%ebx" \
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: "=a" (__res) \
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: "i" (__NR_##name),"m" ((long)(arg1)),"c" ((long)(arg2)), \
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"d" ((long)(arg3)),"S" ((long)(arg4)),"D" ((long)(arg5)), \
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"a" ((long)(arg6))); \
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__syscall_return(type,__res); \
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}
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#endif /* __PIC__ */
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#endif /* _KLIBC_ARCHSYS_H */
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