[uClibc-cvs] uClibc/libc/sysdeps/linux/sh64/sys ucontext.h, NONE, 1.1

Erik Andersen andersen at uclibc.org
Wed Aug 13 20:08:33 UTC 2003


Update of /var/cvs/uClibc/libc/sysdeps/linux/sh64/sys
In directory winder:/tmp/cvs-serv6191/libc/sysdeps/linux/sh64/sys

Added Files:
	ucontext.h 
Log Message:
Patch from Paul Mundt adding uClibc sh64 support:

Here's a patch that implements the beginnings of a rudimentary sh64 port. So
far, this only works static, as I haven't done any of the ldso work yet. I've
also not touched the libpthread stuff yet either, so that's also disabled for
now.

This port was based off of some work that Sean McGoogan at SuperH did for his
initial port, but the this patch doesn't carry over too much from there
(basically the libc/sysdeps/linux/sh64/Makefile (or rather, parts of it),
the setjmp/longjmp stuff (which I had to rewrite portions of it to work with
the new toolchains), etc.).

However, for static, everything appears to work correcly, at least in a hello
world type application.




--- NEW FILE: ucontext.h ---
/* Copyright (C) 1999, 2000, 2001 Free Software Foundation, Inc.
   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Library General Public License as
   published by the Free Software Foundation; either version 2 of the
   License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Library General Public License for more details.

   You should have received a copy of the GNU Library General Public
   License along with the GNU C Library; see the file COPYING.LIB.  If not,
   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
   Boston, MA 02111-1307, USA.  */

/* Where is System V/SH ABI?  */

#ifndef _SYS_UCONTEXT_H
#define _SYS_UCONTEXT_H	1

#include <features.h>
#include <signal.h>

/* We need the signal context definitions even if they are not used
   included in <signal.h>.  */
#include <bits/sigcontext.h>


typedef long long greg_t;

/* Number of general registers.  */
#define NGREG	64

/* Container for all general registers.  */
typedef greg_t gregset_t[NGREG];

#ifdef __USE_GNU
/* Number of each register is the `gregset_t' array.  */
enum
{
  R0 = 0,
#define R0	R0
  R1 = 1,
#define R1	R1
  R2 = 2,
#define R2	R2
  R3 = 3,
#define R3	R3
  R4 = 4,
#define R4	R4
  R5 = 5,
#define R5	R5
  R6 = 6,
#define R6	R6
  R7 = 7,
#define R7	R7
  R8 = 8,
#define R8	R8
  R9 = 9,
#define R9	R9
  R10 = 10,
#define R10	R10
  R11 = 11,
#define R11	R11
  R12 = 12,
#define R12	R12
  R13 = 13,
#define R13	R13
  R14 = 14,
#define R14	R14
  R15 = 15,
#define R15	R15
  R16 = 16,
#define R16	R16
  R17 = 17,
#define R17	R17
  R18 = 18,
#define R18	R18
  R19 = 19,
#define R19	R19
  R20 = 20,
#define R20	R20
  R21 = 21,
#define R21	R21
  R22 = 22,
#define R22	R22
  R23 = 23,
#define R23	R23
  R24 = 24,
#define R24	R24
  R25 = 25,
#define R25	R25
  R26 = 26,
#define R26	R26
  R27 = 27,
#define R27	R27
  R28 = 28,
#define R28	R28
  R29 = 29,
#define R29	R29
  R30 = 30,
#define R30	R30
  R31 = 31,
#define R31	R31
  R32 = 32,
#define R32	R32
  R33 = 33,
#define R33	R33
  R34 = 34,
#define R34	R34
  R35 = 35,
#define R35	R35
  R36 = 36,
#define R36	R36
  R37 = 37,
#define R37	R37
  R38 = 38,
#define R38	R38
  R39 = 39,
#define R39	R39
  R40 = 40,
#define R40	R40
  R41 = 41,
#define R41	R41
  R42 = 42,
#define R42	R42
  R43 = 43,
#define R43	R43
  R44 = 44,
#define R44	R44
  R45 = 45,
#define R45	R45
  R46 = 46,
#define R46	R46
  R47 = 47,
#define R47	R47
  R48 = 48,
#define R48	R48
  R49 = 49,
#define R49	R49
  R50 = 50,
#define R50	R50
  R51 = 51,
#define R51	R51
  R52 = 52,
#define R52	R52
  R53 = 53,
#define R53	R53
  R54 = 54,
#define R54	R54
  R55 = 55,
#define R55	R55
  R56 = 56,
#define R56	R56
  R57 = 57,
#define R57	R57
  R58 = 58,
#define R58	R58
  R59 = 59,
#define R59	R59
  R60 = 60,
#define R60	R60
  R61 = 61,
#define R61	R61
  R62 = 62,
#define R62	R62
  R63 = 63,
#define R63	R63
};
#endif

typedef int freg_t;

/* Number of FPU registers.  */
#define NFPREG	32

/* Structure to describe FPU registers.  */
typedef freg_t fpregset_t[NFPREG];

/* Context to describe whole processor state.  */
typedef struct
  {
    gregset_t gregs;
    fpregset_t fpregs;
    unsigned long long sc_tregs[8];
    unsigned long long sc_pc;
    unsigned long long sc_sr;
    unsigned long long sc_fpscr;
    
  } mcontext_t;

/* Userlevel context.  */
typedef struct ucontext
  {
    unsigned long int uc_flags;
    struct ucontext *uc_link;
    stack_t uc_stack;
    mcontext_t uc_mcontext;
    __sigset_t uc_sigmask;
  } ucontext_t;

#endif /* sys/ucontext.h */




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