target/xtensa: add linux-user support

Import list of syscalls from the kernel source. Conditionalize code/data
that is only used with softmmu. Implement exception handlers. Implement
signal hander (only the core registers for now, no coprocessors or TIE).

Cc: Riku Voipio <riku.voipio@iki.fi>
Cc: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>

1 files changed, 328 insertions, 0 deletions

diff --git a/linux-user/xtensa/termbits.h b/linux-user/xtensa/termbits.h
new file mode 100644
index 0000000000..eed8286de7
--- /dev/null
+++ b/linux-user/xtensa/termbits.h
@@ -0,0 +1,328 @@
+/*
+ * include/asm-xtensa/termbits.h
+ *
+ * Copied from SH.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2001 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_TERMBITS_H
+#define _XTENSA_TERMBITS_H
+
+#include <linux/posix_types.h>
+
+typedef unsigned char   cc_t;
+typedef unsigned int    speed_t;
+typedef unsigned int    tcflag_t;
+
+#define TARGET_NCCS 19
+struct target_termios {
+    tcflag_t c_iflag;       /* input mode flags */
+    tcflag_t c_oflag;       /* output mode flags */
+    tcflag_t c_cflag;       /* control mode flags */
+    tcflag_t c_lflag;       /* local mode flags */
+    cc_t c_line;            /* line discipline */
+    cc_t c_cc[TARGET_NCCS]; /* control characters */
+};
+
+struct target_termios2 {
+    tcflag_t c_iflag;       /* input mode flags */
+    tcflag_t c_oflag;       /* output mode flags */
+    tcflag_t c_cflag;       /* control mode flags */
+    tcflag_t c_lflag;       /* local mode flags */
+    cc_t c_line;            /* line discipline */
+    cc_t c_cc[TARGET_NCCS]; /* control characters */
+    speed_t c_ispeed;       /* input speed */
+    speed_t c_ospeed;       /* output speed */
+};
+
+struct target_ktermios {
+    tcflag_t c_iflag;       /* input mode flags */
+    tcflag_t c_oflag;       /* output mode flags */
+    tcflag_t c_cflag;       /* control mode flags */
+    tcflag_t c_lflag;       /* local mode flags */
+    cc_t c_line;            /* line discipline */
+    cc_t c_cc[TARGET_NCCS]; /* control characters */
+    speed_t c_ispeed;       /* input speed */
+    speed_t c_ospeed;       /* output speed */
+};
+
+/* c_cc characters */
+
+#define TARGET_VINTR 0
+#define TARGET_VQUIT 1
+#define TARGET_VERASE 2
+#define TARGET_VKILL 3
+#define TARGET_VEOF 4
+#define TARGET_VTIME 5
+#define TARGET_VMIN 6
+#define TARGET_VSWTC 7
+#define TARGET_VSTART 8
+#define TARGET_VSTOP 9
+#define TARGET_VSUSP 10
+#define TARGET_VEOL 11
+#define TARGET_VREPRINT 12
+#define TARGET_VDISCARD 13
+#define TARGET_VWERASE 14
+#define TARGET_VLNEXT 15
+#define TARGET_VEOL2 16
+
+/* c_iflag bits */
+
+#define TARGET_IGNBRK   0000001
+#define TARGET_BRKINT   0000002
+#define TARGET_IGNPAR   0000004
+#define TARGET_PARMRK   0000010
+#define TARGET_INPCK    0000020
+#define TARGET_ISTRIP   0000040
+#define TARGET_INLCR    0000100
+#define TARGET_IGNCR    0000200
+#define TARGET_ICRNL    0000400
+#define TARGET_IUCLC    0001000
+#define TARGET_IXON 0002000
+#define TARGET_IXANY    0004000
+#define TARGET_IXOFF    0010000
+#define TARGET_IMAXBEL  0020000
+#define TARGET_IUTF8    0040000
+
+/* c_oflag bits */
+
+#define TARGET_OPOST    0000001
+#define TARGET_OLCUC    0000002
+#define TARGET_ONLCR    0000004
+#define TARGET_OCRNL    0000010
+#define TARGET_ONOCR    0000020
+#define TARGET_ONLRET   0000040
+#define TARGET_OFILL    0000100
+#define TARGET_OFDEL    0000200
+#define TARGET_NLDLY    0000400
+#define   TARGET_NL0    0000000
+#define   TARGET_NL1    0000400
+#define TARGET_CRDLY    0003000
+#define   TARGET_CR0    0000000
+#define   TARGET_CR1    0001000
+#define   TARGET_CR2    0002000
+#define   TARGET_CR3    0003000
+#define TARGET_TABDLY   0014000
+#define   TARGET_TAB0   0000000
+#define   TARGET_TAB1   0004000
+#define   TARGET_TAB2   0010000
+#define   TARGET_TAB3   0014000
+#define   TARGET_XTABS  0014000
+#define TARGET_BSDLY    0020000
+#define   TARGET_BS0    0000000
+#define   TARGET_BS1    0020000
+#define TARGET_VTDLY    0040000
+#define   TARGET_VT0    0000000
+#define   TARGET_VT1    0040000
+#define TARGET_FFDLY    0100000
+#define   TARGET_FF0    0000000
+#define   TARGET_FF1    0100000
+
+/* c_cflag bit meaning */
+
+#define TARGET_CBAUD    0010017
+#define  TARGET_B0  0000000     /* hang up */
+#define  TARGET_B50 0000001
+#define  TARGET_B75 0000002
+#define  TARGET_B110    0000003
+#define  TARGET_B134    0000004
+#define  TARGET_B150    0000005
+#define  TARGET_B200    0000006
+#define  TARGET_B300    0000007
+#define  TARGET_B600    0000010
+#define  TARGET_B1200   0000011
+#define  TARGET_B1800   0000012
+#define  TARGET_B2400   0000013
+#define  TARGET_B4800   0000014
+#define  TARGET_B9600   0000015
+#define  TARGET_B19200  0000016
+#define  TARGET_B38400  0000017
+#define TARGET_EXTA B19200
+#define TARGET_EXTB B38400
+#define TARGET_CSIZE    0000060
+#define   TARGET_CS5    0000000
+#define   TARGET_CS6    0000020
+#define   TARGET_CS7    0000040
+#define   TARGET_CS8    0000060
+#define TARGET_CSTOPB   0000100
+#define TARGET_CREAD    0000200
+#define TARGET_PARENB   0000400
+#define TARGET_PARODD   0001000
+#define TARGET_HUPCL    0002000
+#define TARGET_CLOCAL   0004000
+#define TARGET_CBAUDEX 0010000
+#define    TARGET_BOTHER 0010000
+#define    TARGET_B57600 0010001
+#define   TARGET_B115200 0010002
+#define   TARGET_B230400 0010003
+#define   TARGET_B460800 0010004
+#define   TARGET_B500000 0010005
+#define   TARGET_B576000 0010006
+#define   TARGET_B921600 0010007
+#define  TARGET_B1000000 0010010
+#define  TARGET_B1152000 0010011
+#define  TARGET_B1500000 0010012
+#define  TARGET_B2000000 0010013
+#define  TARGET_B2500000 0010014
+#define  TARGET_B3000000 0010015
+#define  TARGET_B3500000 0010016
+#define  TARGET_B4000000 0010017
+#define TARGET_CIBAUD     002003600000      /* input baud rate */
+#define TARGET_CMSPAR     010000000000      /* mark or space (stick) parity */
+#define TARGET_CRTSCTS    020000000000      /* flow control */
+
+#define TARGET_IBSHIFT  16      /* Shift from CBAUD to CIBAUD */
+
+/* c_lflag bits */
+
+#define TARGET_ISIG 0000001
+#define TARGET_ICANON   0000002
+#define TARGET_XCASE    0000004
+#define TARGET_ECHO 0000010
+#define TARGET_ECHOE    0000020
+#define TARGET_ECHOK    0000040
+#define TARGET_ECHONL   0000100
+#define TARGET_NOFLSH   0000200
+#define TARGET_TOSTOP   0000400
+#define TARGET_ECHOCTL  0001000
+#define TARGET_ECHOPRT  0002000
+#define TARGET_ECHOKE   0004000
+#define TARGET_FLUSHO   0010000
+#define TARGET_PENDIN   0040000
+#define TARGET_IEXTEN   0100000
+
+/* tcflow() and TCXONC use these */
+
+#define TARGET_TCOOFF       0
+#define TARGET_TCOON        1
+#define TARGET_TCIOFF       2
+#define TARGET_TCION        3
+
+/* tcflush() and TCFLSH use these */
+
+#define TARGET_TCIFLUSH 0
+#define TARGET_TCOFLUSH 1
+#define TARGET_TCIOFLUSH    2
+
+/* tcsetattr uses these */
+
+#define TARGET_TCSANOW      0
+#define TARGET_TCSADRAIN    1
+#define TARGET_TCSAFLUSH    2
+
+/* from arch/xtensa/include/uapi/asm/ioctls.h */
+
+#define TARGET_FIOCLEX     _IO('f', 1)
+#define TARGET_FIONCLEX    _IO('f', 2)
+#define TARGET_FIOASYNC    _IOW('f', 125, int)
+#define TARGET_FIONBIO     _IOW('f', 126, int)
+#define TARGET_FIONREAD    _IOR('f', 127, int)
+#define TARGET_TIOCINQ     FIONREAD
+#define TARGET_FIOQSIZE    _IOR('f', 128, loff_t)
+
+#define TARGET_TCGETS      0x5401
+#define TARGET_TCSETS      0x5402
+#define TARGET_TCSETSW     0x5403
+#define TARGET_TCSETSF     0x5404
+
+#define TARGET_TCGETA      0x80127417  /* _IOR('t', 23, struct termio) */
+#define TARGET_TCSETA      0x40127418  /* _IOW('t', 24, struct termio) */
+#define TARGET_TCSETAW     0x40127419  /* _IOW('t', 25, struct termio) */
+#define TARGET_TCSETAF     0x4012741C  /* _IOW('t', 28, struct termio) */
+
+#define TARGET_TCSBRK      _IO('t', 29)
+#define TARGET_TCXONC      _IO('t', 30)
+#define TARGET_TCFLSH      _IO('t', 31)
+
+#define TARGET_TIOCSWINSZ  0x40087467  /* _IOW('t', 103, struct winsize) */
+#define TARGET_TIOCGWINSZ  0x80087468  /* _IOR('t', 104, struct winsize) */
+#define TARGET_TIOCSTART   _IO('t', 110)       /* start output, like ^Q */
+#define TARGET_TIOCSTOP    _IO('t', 111)       /* stop output, like ^S */
+#define TARGET_TIOCOUTQ        _IOR('t', 115, int)     /* output queue size */
+
+#define TARGET_TIOCSPGRP   _IOW('t', 118, int)
+#define TARGET_TIOCGPGRP   _IOR('t', 119, int)
+
+#define TARGET_TIOCEXCL    _IO('T', 12)
+#define TARGET_TIOCNXCL    _IO('T', 13)
+#define TARGET_TIOCSCTTY   _IO('T', 14)
+
+#define TARGET_TIOCSTI     _IOW('T', 18, char)
+#define TARGET_TIOCMGET    _IOR('T', 21, unsigned int)
+#define TARGET_TIOCMBIS    _IOW('T', 22, unsigned int)
+#define TARGET_TIOCMBIC    _IOW('T', 23, unsigned int)
+#define TARGET_TIOCMSET    _IOW('T', 24, unsigned int)
+# define TARGET_TIOCM_LE   0x001
+# define TARGET_TIOCM_DTR  0x002
+# define TARGET_TIOCM_RTS  0x004
+# define TARGET_TIOCM_ST   0x008
+# define TARGET_TIOCM_SR   0x010
+# define TARGET_TIOCM_CTS  0x020
+# define TARGET_TIOCM_CAR  0x040
+# define TARGET_TIOCM_RNG  0x080
+# define TARGET_TIOCM_DSR  0x100
+# define TARGET_TIOCM_CD   TIOCM_CAR
+# define TARGET_TIOCM_RI   TIOCM_RNG
+
+#define TARGET_TIOCGSOFTCAR    _IOR('T', 25, unsigned int)
+#define TARGET_TIOCSSOFTCAR    _IOW('T', 26, unsigned int)
+#define TARGET_TIOCLINUX   _IOW('T', 28, char)
+#define TARGET_TIOCCONS    _IO('T', 29)
+#define TARGET_TIOCGSERIAL 0x803C541E  /*_IOR('T', 30, struct serial_struct)*/
+#define TARGET_TIOCSSERIAL 0x403C541F  /*_IOW('T', 31, struct serial_struct)*/
+#define TARGET_TIOCPKT     _IOW('T', 32, int)
+# define TARGET_TIOCPKT_DATA        0
+# define TARGET_TIOCPKT_FLUSHREAD   1
+# define TARGET_TIOCPKT_FLUSHWRITE  2
+# define TARGET_TIOCPKT_STOP        4
+# define TARGET_TIOCPKT_START       8
+# define TARGET_TIOCPKT_NOSTOP     16
+# define TARGET_TIOCPKT_DOSTOP     32
+# define TARGET_TIOCPKT_IOCTL      64
+
+
+#define TARGET_TIOCNOTTY   _IO('T', 34)
+#define TARGET_TIOCSETD    _IOW('T', 35, int)
+#define TARGET_TIOCGETD    _IOR('T', 36, int)
+#define TARGET_TCSBRKP     _IOW('T', 37, int)   /* Needed for POSIX tcsendbreak()*/
+#define TARGET_TIOCSBRK    _IO('T', 39)         /* BSD compatibility */
+#define TARGET_TIOCCBRK    _IO('T', 40)         /* BSD compatibility */
+#define TARGET_TIOCGSID    _IOR('T', 41, pid_t) /* Return the session ID of FD*/
+#define TARGET_TCGETS2     _IOR('T', 42, struct termios2)
+#define TARGET_TCSETS2     _IOW('T', 43, struct termios2)
+#define TARGET_TCSETSW2    _IOW('T', 44, struct termios2)
+#define TARGET_TCSETSF2    _IOW('T', 45, struct termios2)
+#define TARGET_TIOCGRS485  _IOR('T', 46, struct serial_rs485)
+#define TARGET_TIOCSRS485  _IOWR('T', 47, struct serial_rs485)
+#define TARGET_TIOCGPTN    _IOR('T',0x30, unsigned int) /* Get Pty Number (of pty-mux device) */
+#define TARGET_TIOCSPTLCK  _IOW('T',0x31, int)  /* Lock/unlock Pty */
+#define TARGET_TIOCGDEV    _IOR('T',0x32, unsigned int) /* Get primary device node of /dev/console */
+#define TARGET_TIOCSIG     _IOW('T',0x36, int)  /* Generate signal on Pty slave */
+#define TARGET_TIOCVHANGUP _IO('T', 0x37)
+#define TARGET_TIOCGPKT    _IOR('T', 0x38, int) /* Get packet mode state */
+#define TARGET_TIOCGPTLCK  _IOR('T', 0x39, int) /* Get Pty lock state */
+#define TARGET_TIOCGEXCL   _IOR('T', 0x40, int) /* Get exclusive mode state */
+#define TARGET_TIOCGPTPEER _IO('T', 0x41) /* Safely open the slave */
+
+#define TARGET_TIOCSERCONFIG   _IO('T', 83)
+#define TARGET_TIOCSERGWILD    _IOR('T', 84,  int)
+#define TARGET_TIOCSERSWILD    _IOW('T', 85,  int)
+#define TARGET_TIOCGLCKTRMIOS  0x5456
+#define TARGET_TIOCSLCKTRMIOS  0x5457
+#define TARGET_TIOCSERGSTRUCT  0x5458           /* For debugging only */
+#define TARGET_TIOCSERGETLSR   _IOR('T', 89, unsigned int) /* Get line status reg. */
+/* ioctl (fd, TIOCSERGETLSR, &result) where result may be as below */
+# define TARGET_TIOCSER_TEMT    0x01            /* Transmitter physically empty */
+#define TARGET_TIOCSERGETMULTI 0x80a8545a /* Get multiport config  */
+/* _IOR('T', 90, struct serial_multiport_struct) */
+#define TARGET_TIOCSERSETMULTI 0x40a8545b /* Set multiport config */
+/* _IOW('T', 91, struct serial_multiport_struct) */
+
+#define TARGET_TIOCMIWAIT  _IO('T', 92) /* wait for a change on serial input line(s) */
+#define TARGET_TIOCGICOUNT 0x545D  /* read serial port inline interrupt counts */
+#endif  /* _XTENSA_TERMBITS_H */