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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
/*
Some of the sneaky macros in the code were taken from
glibc-2.2.5/sysdeps/unix/sysv/linux/i386/sysdep.h
*/
#ifndef __ASSEMBLER__
#include <errno.h>
#define INTERNAL_SYSCALL_ERROR_P(val, err) \
((unsigned int) (val) >= 0xfffff001u)
/* We need some help from the assembler to generate optimal code. We
define some macros here which later will be used. */
#if defined __SUPPORT_LD_DEBUG__ && defined __DOMULTI__
#error LD debugging and DOMULTI are incompatible
#endif
#ifdef __DOMULTI__
__asm__ (".L__X'%ebx = 1\n\t"
".L__X'%ecx = 2\n\t"
".L__X'%edx = 2\n\t"
".L__X'%eax = 3\n\t"
".L__X'%esi = 3\n\t"
".L__X'%edi = 3\n\t"
".L__X'%ebp = 3\n\t"
".L__X'%esp = 3\n\t"
".ifndef _BITS_SYSCALLS_ASM\n\t"
".set _BITS_SYSCALLS_ASM,1\n\t"
".macro bpushl name reg\n\t"
".if 1 - \\name\n\t"
".if 2 - \\name\n\t"
"pushl %ebx\n\t"
".else\n\t"
"xchgl \\reg, %ebx\n\t"
".endif\n\t"
".endif\n\t"
".endm\n\t"
".macro bpopl name reg\n\t"
".if 1 - \\name\n\t"
".if 2 - \\name\n\t"
"popl %ebx\n\t"
".else\n\t"
"xchgl \\reg, %ebx\n\t"
".endif\n\t"
".endif\n\t"
".endm\n\t"
".macro bmovl name reg\n\t"
".if 1 - \\name\n\t"
".if 2 - \\name\n\t"
"movl \\reg, %ebx\n\t"
".endif\n\t"
".endif\n\t"
".endm\n\t"
".endif\n\t");
#else
__asm__ (".L__X'%ebx = 1\n\t"
".L__X'%ecx = 2\n\t"
".L__X'%edx = 2\n\t"
".L__X'%eax = 3\n\t"
".L__X'%esi = 3\n\t"
".L__X'%edi = 3\n\t"
".L__X'%ebp = 3\n\t"
".L__X'%esp = 3\n\t"
".macro bpushl name reg\n\t"
".if 1 - \\name\n\t"
".if 2 - \\name\n\t"
"pushl %ebx\n\t"
".else\n\t"
"xchgl \\reg, %ebx\n\t"
".endif\n\t"
".endif\n\t"
".endm\n\t"
".macro bpopl name reg\n\t"
".if 1 - \\name\n\t"
".if 2 - \\name\n\t"
"popl %ebx\n\t"
".else\n\t"
"xchgl \\reg, %ebx\n\t"
".endif\n\t"
".endif\n\t"
".endm\n\t"
".macro bmovl name reg\n\t"
".if 1 - \\name\n\t"
".if 2 - \\name\n\t"
"movl \\reg, %ebx\n\t"
".endif\n\t"
".endif\n\t"
".endm\n\t");
#endif
#define INTERNAL_SYSCALL(name, err, nr, args...) \
({ \
register unsigned int resultvar; \
__asm__ __volatile__ ( \
LOADARGS_##nr \
"movl %1, %%eax\n\t" \
"int $0x80\n\t" \
RESTOREARGS_##nr \
: "=a" (resultvar) \
: "i" (__NR_##name) ASMFMT_##nr(args) : "memory", "cc"); \
(int) resultvar; })
#define LOADARGS_0
#define LOADARGS_1 \
"bpushl .L__X'%k2, %k2\n\t" \
"bmovl .L__X'%k2, %k2\n\t"
#define LOADARGS_2 LOADARGS_1
#define LOADARGS_3 LOADARGS_1
#define LOADARGS_4 LOADARGS_1
#define LOADARGS_5 LOADARGS_1
#define LOADARGS_6 LOADARGS_1 "push %%ebp ; movl %7, %%ebp\n\t"
#define RESTOREARGS_0
#define RESTOREARGS_1 \
"bpopl .L__X'%k2, %k2\n\t"
#define RESTOREARGS_2 RESTOREARGS_1
#define RESTOREARGS_3 RESTOREARGS_1
#define RESTOREARGS_4 RESTOREARGS_1
#define RESTOREARGS_5 RESTOREARGS_1
#define RESTOREARGS_6 "pop %%ebp\n\t" RESTOREARGS_1
#define ASMFMT_0()
#define ASMFMT_1(arg1) \
, "acdSD" (arg1)
#define ASMFMT_2(arg1, arg2) \
, "adSD" (arg1), "c" (arg2)
#define ASMFMT_3(arg1, arg2, arg3) \
, "aSD" (arg1), "c" (arg2), "d" (arg3)
#define ASMFMT_4(arg1, arg2, arg3, arg4) \
, "aD" (arg1), "c" (arg2), "d" (arg3), "S" (arg4)
#define ASMFMT_5(arg1, arg2, arg3, arg4, arg5) \
, "a" (arg1), "c" (arg2), "d" (arg3), "S" (arg4), "D" (arg5)
#define ASMFMT_6(arg1, arg2, arg3, arg4, arg5, arg6) \
, "a" (arg1), "c" (arg2), "d" (arg3), "S" (arg4), "D" (arg5), "m" (arg6)
#endif /* __ASSEMBLER__ */
#endif /* _BITS_SYSCALLS_H */
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