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|
#ifndef _BITS_SYSCALLS_H
#define _BITS_SYSCALLS_H
#ifndef _SYSCALL_H
# error "Never use <bits/syscalls.h> directly; include <sys/syscall.h> instead."
#endif
#include <sgidefs.h>
#ifndef __ASSEMBLER__
#include <errno.h>
/*
* Import from:
* glibc-ports/sysdeps/unix/sysv/linux/mips/mips32/sysdep.h
* glibc-ports/sysdeps/unix/sysv/linux/mips/mips64/n32/sysdep.h
* glibc-ports/sysdeps/unix/sysv/linux/mips/mips64/n64/sysdep.h
*/
/* Define a macro which expands into the inline wrapper code for a system
call. */
#define INLINE_SYSCALL(name, nr, args...) \
({ INTERNAL_SYSCALL_DECL(err); \
long result_var = INTERNAL_SYSCALL(name, err, nr, args); \
if ( INTERNAL_SYSCALL_ERROR_P (result_var, err) ) \
{ \
__set_errno (INTERNAL_SYSCALL_ERRNO (result_var, err)); \
result_var = -1L; \
} \
result_var; })
#define INLINE_SYSCALL_NOERR_NCS(name, nr, args...) \
({ \
INTERNAL_SYSCALL_DECL(err); \
long res = INTERNAL_SYSCALL_NCS(name, err, nr, args); \
if (unlikely(INTERNAL_SYSCALL_ERROR_P(res, err))) { \
res = -res; \
} \
res; \
})
#define INTERNAL_SYSCALL_DECL(err) long err attribute_unused
#define INTERNAL_SYSCALL_ERROR_P(val, err) ((long) (err))
#define INTERNAL_SYSCALL_ERRNO(val, err) (val)
#define INTERNAL_SYSCALL(name, err, nr, args...) \
internal_syscall##nr (, "li\t$2, %2\t\t\t# " #name "\n\t", \
"i" (SYS_ify (name)), err, args)
#define INTERNAL_SYSCALL_NCS(number, err, nr, args...) \
internal_syscall##nr (= number, , "r" (__v0), err, args)
#if _MIPS_SIM == _ABIO32 || _MIPS_SIM == _ABI64
# define ARG_TYPE long
#else
# define ARG_TYPE long long
#endif
#define internal_syscall0(ncs_init, cs_init, input, err, dummy...) \
({ \
long _sys_result; \
\
{ \
register ARG_TYPE __v0 __asm__("$2") ncs_init; \
register ARG_TYPE __a3 __asm__("$7"); \
__asm__ __volatile__ ( \
".set\tnoreorder\n\t" \
cs_init \
"syscall\n\t" \
".set reorder" \
: "=r" (__v0), "=r" (__a3) \
: input \
: __SYSCALL_CLOBBERS); \
err = __a3; \
_sys_result = __v0; \
} \
_sys_result; \
})
#define internal_syscall1(ncs_init, cs_init, input, err, arg1) \
({ \
long _sys_result; \
\
{ \
register ARG_TYPE __v0 __asm__("$2") ncs_init; \
register ARG_TYPE __a0 __asm__("$4") = (ARG_TYPE) arg1; \
register ARG_TYPE __a3 __asm__("$7"); \
__asm__ __volatile__ ( \
".set\tnoreorder\n\t" \
cs_init \
"syscall\n\t" \
".set reorder" \
: "=r" (__v0), "=r" (__a3) \
: input, "r" (__a0) \
: __SYSCALL_CLOBBERS); \
err = __a3; \
_sys_result = __v0; \
} \
_sys_result; \
})
#define internal_syscall2(ncs_init, cs_init, input, err, arg1, arg2) \
({ \
long _sys_result; \
\
{ \
register ARG_TYPE __v0 __asm__("$2") ncs_init; \
register ARG_TYPE __a0 __asm__("$4") = (ARG_TYPE) arg1; \
register ARG_TYPE __a1 __asm__("$5") = (ARG_TYPE) arg2; \
register ARG_TYPE __a3 __asm__("$7"); \
__asm__ __volatile__ ( \
".set\tnoreorder\n\t" \
cs_init \
"syscall\n\t" \
".set\treorder" \
: "=r" (__v0), "=r" (__a3) \
: input, "r" (__a0), "r" (__a1) \
: __SYSCALL_CLOBBERS); \
err = __a3; \
_sys_result = __v0; \
} \
_sys_result; \
})
#define internal_syscall3(ncs_init, cs_init, input, err, arg1, arg2, arg3)\
({ \
long _sys_result; \
\
{ \
register ARG_TYPE __v0 __asm__("$2") ncs_init; \
register ARG_TYPE __a0 __asm__("$4") = (ARG_TYPE) arg1; \
register ARG_TYPE __a1 __asm__("$5") = (ARG_TYPE) arg2; \
register ARG_TYPE __a2 __asm__("$6") = (ARG_TYPE) arg3; \
register ARG_TYPE __a3 __asm__("$7"); \
__asm__ __volatile__ ( \
".set\tnoreorder\n\t" \
cs_init \
"syscall\n\t" \
".set\treorder" \
: "=r" (__v0), "=r" (__a3) \
: input, "r" (__a0), "r" (__a1), "r" (__a2) \
: __SYSCALL_CLOBBERS); \
err = __a3; \
_sys_result = __v0; \
} \
_sys_result; \
})
#define internal_syscall4(ncs_init, cs_init, input, err, arg1, arg2, arg3, arg4)\
({ \
long _sys_result; \
\
{ \
register ARG_TYPE __v0 __asm__("$2") ncs_init; \
register ARG_TYPE __a0 __asm__("$4") = (ARG_TYPE) arg1; \
register ARG_TYPE __a1 __asm__("$5") = (ARG_TYPE) arg2; \
register ARG_TYPE __a2 __asm__("$6") = (ARG_TYPE) arg3; \
register ARG_TYPE __a3 __asm__("$7") = (ARG_TYPE) arg4; \
__asm__ __volatile__ ( \
".set\tnoreorder\n\t" \
cs_init \
"syscall\n\t" \
".set\treorder" \
: "=r" (__v0), "+r" (__a3) \
: input, "r" (__a0), "r" (__a1), "r" (__a2) \
: __SYSCALL_CLOBBERS); \
err = __a3; \
_sys_result = __v0; \
} \
_sys_result; \
})
#if _MIPS_SIM == _ABIO32
#include <alloca.h>
/* We need to use a frame pointer for the functions in which we
adjust $sp around the syscall, or debug information and unwind
information will be $sp relative and thus wrong during the syscall. As
of GCC 3.4.3, this is sufficient. */
#define FORCE_FRAME_POINTER alloca (4)
#define internal_syscall5(ncs_init, cs_init, input, err, arg1, arg2, arg3, arg4, arg5)\
({ \
long _sys_result; \
\
FORCE_FRAME_POINTER; \
{ \
register long __v0 __asm__("$2") ncs_init; \
register long __a0 __asm__("$4") = (long) arg1; \
register long __a1 __asm__("$5") = (long) arg2; \
register long __a2 __asm__("$6") = (long) arg3; \
register long __a3 __asm__("$7") = (long) arg4; \
__asm__ __volatile__ ( \
".set\tnoreorder\n\t" \
"subu\t$29, 32\n\t" \
"sw\t%6, 16($29)\n\t" \
cs_init \
"syscall\n\t" \
"addiu\t$29, 32\n\t" \
".set\treorder" \
: "=r" (__v0), "+r" (__a3) \
: input, "r" (__a0), "r" (__a1), "r" (__a2), \
"r" ((long)arg5) \
: __SYSCALL_CLOBBERS); \
err = __a3; \
_sys_result = __v0; \
} \
_sys_result; \
})
#define internal_syscall6(ncs_init, cs_init, input, err, arg1, arg2, arg3, arg4, arg5, arg6)\
({ \
long _sys_result; \
\
FORCE_FRAME_POINTER; \
{ \
register long __v0 __asm__("$2") ncs_init; \
register long __a0 __asm__("$4") = (long) arg1; \
register long __a1 __asm__("$5") = (long) arg2; \
register long __a2 __asm__("$6") = (long) arg3; \
register long __a3 __asm__("$7") = (long) arg4; \
__asm__ __volatile__ ( \
".set\tnoreorder\n\t" \
"subu\t$29, 32\n\t" \
"sw\t%6, 16($29)\n\t" \
"sw\t%7, 20($29)\n\t" \
cs_init \
"syscall\n\t" \
"addiu\t$29, 32\n\t" \
".set\treorder" \
: "=r" (__v0), "+r" (__a3) \
: input, "r" (__a0), "r" (__a1), "r" (__a2), \
"r" ((long)arg5), "r" ((long)arg6) \
: __SYSCALL_CLOBBERS); \
err = __a3; \
_sys_result = __v0; \
} \
_sys_result; \
})
#define internal_syscall7(ncs_init, cs_init, input, err, arg1, arg2, arg3, arg4, arg5, arg6, arg7)\
({ \
long _sys_result; \
\
FORCE_FRAME_POINTER; \
{ \
register long __v0 __asm__("$2") ncs_init; \
register long __a0 __asm__("$4") = (long) arg1; \
register long __a1 __asm__("$5") = (long) arg2; \
register long __a2 __asm__("$6") = (long) arg3; \
register long __a3 __asm__("$7") = (long) arg4; \
__asm__ __volatile__ ( \
".set\tnoreorder\n\t" \
"subu\t$29, 32\n\t" \
"sw\t%6, 16($29)\n\t" \
"sw\t%7, 20($29)\n\t" \
"sw\t%8, 24($29)\n\t" \
cs_init \
"syscall\n\t" \
"addiu\t$29, 32\n\t" \
".set\treorder" \
: "=r" (__v0), "+r" (__a3) \
: input, "r" (__a0), "r" (__a1), "r" (__a2), \
"r" ((long)arg5), "r" ((long)arg6), "r" ((long)arg7) \
: __SYSCALL_CLOBBERS); \
err = __a3; \
_sys_result = __v0; \
} \
_sys_result; \
})
#if __mips_isa_rev >= 6
# define __SYSCALL_CLOBBERS "$1", "$3", "$8", "$9", "$10", "$11", "$12", "$13", \
"$14", "$15", "$24", "$25", "memory"
#else
# define __SYSCALL_CLOBBERS "$1", "$3", "$8", "$9", "$10", "$11", "$12", "$13", \
"$14", "$15", "$24", "$25", "hi", "lo", "memory"
#endif
#else /* N32 || N64 */
#define internal_syscall5(ncs_init, cs_init, input, err, arg1, arg2, arg3, arg4, arg5) \
({ \
long _sys_result; \
\
{ \
register ARG_TYPE __v0 __asm__("$2") ncs_init; \
register ARG_TYPE __a0 __asm__("$4") = (ARG_TYPE) arg1; \
register ARG_TYPE __a1 __asm__("$5") = (ARG_TYPE) arg2; \
register ARG_TYPE __a2 __asm__("$6") = (ARG_TYPE) arg3; \
register ARG_TYPE __a3 __asm__("$7") = (ARG_TYPE) arg4; \
register ARG_TYPE __a4 __asm__("$8") = (ARG_TYPE) arg5; \
__asm__ __volatile__ ( \
".set\tnoreorder\n\t" \
cs_init \
"syscall\n\t" \
".set\treorder" \
: "=r" (__v0), "+r" (__a3) \
: input, "r" (__a0), "r" (__a1), "r" (__a2), "r" (__a4) \
: __SYSCALL_CLOBBERS); \
err = __a3; \
_sys_result = __v0; \
} \
_sys_result; \
})
#define internal_syscall6(ncs_init, cs_init, input, err, arg1, arg2, arg3, arg4, arg5, arg6) \
({ \
long _sys_result; \
\
{ \
register ARG_TYPE __v0 __asm__("$2") ncs_init; \
register ARG_TYPE __a0 __asm__("$4") = (ARG_TYPE) arg1; \
register ARG_TYPE __a1 __asm__("$5") = (ARG_TYPE) arg2; \
register ARG_TYPE __a2 __asm__("$6") = (ARG_TYPE) arg3; \
register ARG_TYPE __a3 __asm__("$7") = (ARG_TYPE) arg4; \
register ARG_TYPE __a4 __asm__("$8") = (ARG_TYPE) arg5; \
register ARG_TYPE __a5 __asm__("$9") = (ARG_TYPE) arg6; \
__asm__ __volatile__ ( \
".set\tnoreorder\n\t" \
cs_init \
"syscall\n\t" \
".set\treorder" \
: "=r" (__v0), "+r" (__a3) \
: input, "r" (__a0), "r" (__a1), "r" (__a2), "r" (__a4), \
"r" (__a5) \
: __SYSCALL_CLOBBERS); \
err = __a3; \
_sys_result = __v0; \
} \
_sys_result; \
})
#if __mips_isa_rev >= 6
# define __SYSCALL_CLOBBERS "$1", "$3", "$10", "$11", "$12", "$13", \
"$14", "$15", "$24", "$25", "memory"
#else
# define __SYSCALL_CLOBBERS "$1", "$3", "$10", "$11", "$12", "$13", \
"$14", "$15", "$24", "$25", "hi", "lo", "memory"
#endif
#endif
#endif /* __ASSEMBLER__ */
#endif /* _BITS_SYSCALLS_H */
|
