//

// Just jump to package syscall's implementation for all these functions.
// The runtime may know about them.

TEXT ·Syscall(SB),NOSPLIT,$0-56
	JMP	syscall·Syscall(SB)

TEXT ·Syscall6(SB),NOSPLIT,$0-80
	JMP	syscall·Syscall6(SB)

TEXT ·SyscallNoError(SB),NOSPLIT,$0-48
	JAL	runtime·entersyscall(SB)
	MOVV	a1+8(FP), R4
	MOVV	a2+16(FP), R5
	MOVV	a3+24(FP), R6
	MOVV	R0, R7
	MOVV	R0, R8
	MOVV	R0, R9

#include "textflag.h"
#include "funcdata.h"

//
// System calls for 386, Linux
//

// See ../runtime/sys_linux_386.s for the reason why we always use int 0x80
// instead of the glibc-specific "CALL 0x10(GS)".
#define INVOKE_SYSCALL	INT	$0x80

// func rawVforkSyscall(trap, a1, a2, a3 uintptr) (r1, err uintptr)
TEXT ·rawVforkSyscall(SB),NOSPLIT|NOFRAME,$0-24
	MOVL	trap+0(FP), AX	// syscall entry
	MOVL	a1+4(FP), BX

    assertThat(Buffer().writeUtf8("new\r\nlines").isProbablyUtf8()).isTrue()
    assertThat(Buffer().writeUtf8("white\t space").isProbablyUtf8()).isTrue()
    assertThat(Buffer().writeByte(0x80).isProbablyUtf8()).isTrue()
    assertThat(Buffer().writeByte(0x00).isProbablyUtf8()).isFalse()
    assertThat(Buffer().writeByte(0xc0).isProbablyUtf8()).isFalse()
  }

			return
		} else if length > 0xffffff {
			lenLen = 5
			lenByte = 0x80 | 4
		} else if length > 0xffff {
			lenLen = 4
			lenByte = 0x80 | 3
		} else if length > 0xff {
			lenLen = 3
			lenByte = 0x80 | 2
		} else if length > 0x7f {
			lenLen = 2
			lenByte = 0x80 | 1
		} else {
			lenLen = 1
			lenByte = uint8(length)
			length = 0
		}

	TIOCM_CAR                        = 0x40
	TIOCM_CD                         = 0x40
	TIOCM_CTS                        = 0x20
	TIOCM_DSR                        = 0x100
	TIOCM_RI                         = 0x80
	TIOCM_RNG                        = 0x80
	TIOCM_SR                         = 0x10
	TIOCM_ST                         = 0x8
	TIOCNOTTY                        = 0x5422
	TIOCNXCL                         = 0x540d

	S_IFCHR  = 0x2000
	S_IFDIR  = 0x4000
	S_IFBLK  = 0x6000
	S_IFREG  = 0x8000
	S_IFLNK  = 0xa000
	S_IFSOCK = 0xc000
	S_ISUID  = 0x800
	S_ISGID  = 0x400
	S_ISVTX  = 0x200
	S_IRUSR  = 0x100
	S_IWUSR  = 0x80
	S_IXUSR  = 0x40
	S_IRWXG  = 0x38
	S_IRWXO  = 0x7
)

type Stat_t struct {
	Dev       uint64
	Ino       uint64
	Mode      uint32
	Nlink     uint32
	Uid       uint32
	Gid       uint32

	TIOCM_CAR                        = 0x40
	TIOCM_CD                         = 0x40
	TIOCM_CTS                        = 0x20
	TIOCM_DSR                        = 0x100
	TIOCM_RI                         = 0x80
	TIOCM_RNG                        = 0x80
	TIOCM_SR                         = 0x10
	TIOCM_ST                         = 0x8
	TIOCNOTTY                        = 0x5422
	TIOCNXCL                         = 0x540d

// representation, to dst and returns the extended buffer.
func appendIndexed(dst []byte, i uint64) []byte {
	first := len(dst)
	dst = appendVarInt(dst, 7, i)
	dst[first] |= 0x80
	return dst
}

// appendNewName appends f, as encoded in one of "Literal Header field
// - New Name" representation variants, to dst and returns the
// extended buffer.
//

                    escapeByte(0xC0 | (ch >> 6) & 0x1F, builder);
                    escapeByte(0x80 | ch & 0x3F, builder);
                } else {
                    escapeByte(0xE0 | (ch >> 12) & 0x1F, builder);
                    escapeByte(0x80 | (ch >> 6) & 0x3F, builder);
                    escapeByte(0x80 | ch & 0x3F, builder);
                }
            }
        }
        return builder.toString();

	TIOCM_CAR                        = 0x40
	TIOCM_CD                         = 0x40
	TIOCM_CTS                        = 0x20
	TIOCM_DSR                        = 0x100
	TIOCM_RI                         = 0x80
	TIOCM_RNG                        = 0x80
	TIOCM_SR                         = 0x10
	TIOCM_ST                         = 0x8
	TIOCNOTTY                        = 0x5422
	TIOCNXCL                         = 0x540d