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2004-06-14 Jeff Johnston <jjohnstn@redhat.com>

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* libc/sys/linux/machine/i386/syscall.h: For now, set up
        __syscall_return macro for systems with vsyscall.
This commit is contained in:
Jeff Johnston 2004-06-14 20:57:07 +00:00
parent 50279bcda7
commit be9105991c
2 changed files with 18 additions and 54 deletions
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5
newlib/ChangeLog
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@ -1,3 +1,8 @@
2004-06-14 Jeff Johnston <jjohnstn@redhat.com>
* libc/sys/linux/machine/i386/syscall.h: For now, set up
__syscall_return macro for systems with vsyscall.
2004-06-11 Antony King <antony.king@st.com>
* libc/include/sys/_types.h: Include <sys/lock.h> and change

67
newlib/libc/sys/linux/machine/i386/syscall.h
View File

@ -24,8 +24,20 @@
* PIC uses %ebx, so we need to save it during system calls
*/
#ifdef __syscall_return
#ifndef __syscall_return
/* FIXME: remove this and switch over to use vsyscall. */
#define __syscall_return(type, res) \
do { \
if ((unsigned long)(res) >= (unsigned long)(-125)) { \
errno = -(res); \
res = -1; \
} \
return (type) (res); \
} while (0)
#endif
#undef __inline_syscall0
#define __inline_syscall0(name,ret) \
__asm__ volatile ("int $0x80" \
@ -136,59 +148,6 @@ __inline_syscall6(name,__res,arg1,arg2,arg3,arg4,arg5,arg6) \
__syscall_return(type,__res); \
}
#else /* !__syscall_return */
#undef _syscall0_base
#define _syscall0_base(type,name) \
type __libc_##name (void) \
{ \
return (type)syscall (__NR_##name); \
}
#undef _syscall1_base
#define _syscall1_base(type,name,type1,arg1) \
type __libc_##name (type1 arg1) \
{ \
return (type)syscall (__NR_##name, arg1); \
}
#undef _syscall2_base
#define _syscall2_base(type,name,type1,arg1,type2,arg2) \
type __libc_##name (type1 arg1, type2 arg2) \
{ \
return (type)syscall (__NR_##name, arg1, arg2); \
}
#undef _syscall3_base
#define _syscall3_base(type,name,type1,arg1,type2,arg2,type3,arg3) \
type __libc_##name (type1 arg1, type2 arg2, type3 arg3) \
{ \
return (type)syscall (__NR_##name, arg1, arg2, arg3); \
}
#undef _syscall4_base
#define _syscall4_base(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \
type __libc_##name (type1 arg1, type2 arg2, type3 arg3, type4 arg4) \
{ \
return (type)syscall (__NR_##name, arg1, arg2, arg3, arg4); \
}
#undef _syscall5_base
#define _syscall5_base(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4,type5,arg5) \
type __libc_##name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5) \
{ \
return (type)syscall (__NR_##name, arg1, arg2, arg3, arg4, arg5); \
}
#undef _syscall6_base
#define _syscall6_base(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4,type5,arg5,type6,arg6) \
type __libc_##name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5,type6 arg6) \
{ \
return (type)syscall (__NR_##name, arg1, arg2, arg3, arg4, arg5, arg6); \
}
#endif /* !__syscall_return */
#undef _syscall0
#define _syscall0(type,name) \
_syscall0_base(type,name) \