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update CLib startup code

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git-svn-id: svn://kolibrios.org@615 a494cfbc-eb01-0410-851d-a64ba20cac60
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Sergey Semyonov (Serge) 2007-08-28 10:36:38 +00:00
parent 3be3768ce0
commit 34c712de5d
8 changed files with 652 additions and 0 deletions
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77
programs/develop/open watcom/trunk/clib/crt/atexit.c Normal file
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/****************************************************************************
*
* Open Watcom Project
*
* Portions Copyright (c) 1983-2002 Sybase, Inc. All Rights Reserved.
*
* ========================================================================
*
* This file contains Original Code and/or Modifications of Original
* Code as defined in and that are subject to the Sybase Open Watcom
* Public License version 1.0 (the 'License'). You may not use this file
* except in compliance with the License. BY USING THIS FILE YOU AGREE TO
* ALL TERMS AND CONDITIONS OF THE LICENSE. A copy of the License is
* provided with the Original Code and Modifications, and is also
* available at www.sybase.com/developer/opensource.
*
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND SYBASE AND ALL CONTRIBUTORS HEREBY DISCLAIM
* ALL SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR
* NON-INFRINGEMENT. Please see the License for the specific language
* governing rights and limitations under the License.
*
* ========================================================================
*
* Description: Module for adding functions to the atexit() list, as well
* invoking the functions on library shutdown.
*
****************************************************************************/
#include "variety.h"
#include <stdio.h>
#include <stdlib.h>
#include "rtdata.h"
#include "extfunc.h"
#include "rtinit.h"
#define EXIT_LIMIT 32
static void (* _HUGEDATA _ExitList[EXIT_LIMIT])( void );
static int _ExitCount;
int atexit( void (*func)( void ) )
{
if( _ExitCount < EXIT_LIMIT ) {
_ExitList[ _ExitCount++ ] = func;
return( 0 ); /* indicate added successfully */
}
return( -1 ); /* indicate no room */
}
typedef void exit_fn( void );
#if defined(_M_IX86)
#pragma aux (__outside_CLIB) exit_fn;
#endif
static void _Full_at_exit_rtn( void )
{
int count;
exit_fn *func;
count = _ExitCount;
if( count == ( EXIT_LIMIT + 1 ) ) {
return; /* already done once */
}
_ExitCount = EXIT_LIMIT + 1; /* prevent others being registered */
/* call functions in reverse order of their registration */
while( count != 0 ) {
--count;
func = _ExitList[ count ];
(*func)(); /* invoke user exit routine */
}
}
AYI( _Full_at_exit_rtn, INIT_PRIORITY_PROGRAM + 32 );

71
programs/develop/open watcom/trunk/clib/crt/cmdname.c Normal file
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/****************************************************************************
*
* Open Watcom Project
*
* Portions Copyright (c) 1983-2002 Sybase, Inc. All Rights Reserved.
*
* ========================================================================
*
* This file contains Original Code and/or Modifications of Original
* Code as defined in and that are subject to the Sybase Open Watcom
* Public License version 1.0 (the 'License'). You may not use this file
* except in compliance with the License. BY USING THIS FILE YOU AGREE TO
* ALL TERMS AND CONDITIONS OF THE LICENSE. A copy of the License is
* provided with the Original Code and Modifications, and is also
* available at www.sybase.com/developer/opensource.
*
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND SYBASE AND ALL CONTRIBUTORS HEREBY DISCLAIM
* ALL SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR
* NON-INFRINGEMENT. Please see the License for the specific language
* governing rights and limitations under the License.
*
* ========================================================================
*
* Description: Implementation of _cmdname().
*
****************************************************************************/
#ifdef __WATCOMC__
#include "variety.h"
#else
#define _WCRTLINK
#endif
#include <string.h>
#include <unistd.h>
#include <errno.h>
#include <limits.h>
extern char **_argv; /* argument vector */
/* NOTE: This file isn't used for QNX. It's got its own version. */
#ifdef __LINUX__
_WCRTLINK char *_cmdname( char *name )
{
int save_errno = errno;
int result = readlink( "/proc/self/exe", name, PATH_MAX );
errno = save_errno;
/* fall back to argv[0] if readlink doesn't work */
if( result == -1 || result == PATH_MAX )
return( strcpy( name, _argv[0] ) );
/* readlink does not add a NUL so we need to do it ourselves */
name[result] = '\0';
return( name );
}
#else
_WCRTLINK char *_cmdname( char *name )
{
return( strcpy( name, _argv[0] ) );
}
#endif

106
programs/develop/open watcom/trunk/clib/crt/extfunc.h Normal file
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/****************************************************************************
*
* Open Watcom Project
*
* Portions Copyright (c) 1983-2002 Sybase, Inc. All Rights Reserved.
*
* ========================================================================
*
* This file contains Original Code and/or Modifications of Original
* Code as defined in and that are subject to the Sybase Open Watcom
* Public License version 1.0 (the 'License'). You may not use this file
* except in compliance with the License. BY USING THIS FILE YOU AGREE TO
* ALL TERMS AND CONDITIONS OF THE LICENSE. A copy of the License is
* provided with the Original Code and Modifications, and is also
* available at www.sybase.com/developer/opensource.
*
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND SYBASE AND ALL CONTRIBUTORS HEREBY DISCLAIM
* ALL SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR
* NON-INFRINGEMENT. Please see the License for the specific language
* governing rights and limitations under the License.
*
* ========================================================================
*
* Description: Special interface for calls to non-Watcom routines from
* inside clib (x86 specific).
*
****************************************************************************/
#ifndef EXTFUNC_H_INCLUDED
#define EXTFUNC_H_INCLUDED
#include "variety.h"
#if defined(_M_IX86)
#if !defined(__WINDOWS__)
#if defined(__BIG_DATA__)
#define __DS ds
#endif
#endif
#if !defined(__FLAT__)
#define __ES es
#endif
#if defined(__386__)
#if defined(__WINDOWS__) || !defined(__FLAT__)
#define __FS fs
#endif
#define __GS gs
#if defined(__SW_3S)
#define __AX eax
#define __BX ebx
#define __CX ecx
#define __DX edx
#endif
#endif
#ifndef __AX
#define __AX
#endif
#ifndef __BX
#define __BX
#endif
#ifndef __CX
#define __CX
#endif
#ifndef __DX
#define __DX
#endif
#ifndef __DS
#define __DS
#endif
#ifndef __ES
#define __ES
#endif
#ifndef __FS
#define __FS
#endif
#ifndef __GS
#define __GS
#endif
#pragma aux __outside_CLIB modify [__AX __BX __CX __DX __DS __ES __FS __GS];
/*
use as follows:
typedef void vfv( void );
#pragma aux (__outside_CLIB) __vfv;
*/
#undef __AX
#undef __BX
#undef __CX
#undef __DX
#undef __DS
#undef __ES
#undef __FS
#undef __GS
#endif
#endif

43
programs/develop/open watcom/trunk/clib/crt/ljmphdl.c Normal file
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/****************************************************************************
*
* Open Watcom Project
*
* Portions Copyright (c) 1983-2002 Sybase, Inc. All Rights Reserved.
*
* ========================================================================
*
* This file contains Original Code and/or Modifications of Original
* Code as defined in and that are subject to the Sybase Open Watcom
* Public License version 1.0 (the 'License'). You may not use this file
* except in compliance with the License. BY USING THIS FILE YOU AGREE TO
* ALL TERMS AND CONDITIONS OF THE LICENSE. A copy of the License is
* provided with the Original Code and Modifications, and is also
* available at www.sybase.com/developer/opensource.
*
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND SYBASE AND ALL CONTRIBUTORS HEREBY DISCLAIM
* ALL SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR
* NON-INFRINGEMENT. Please see the License for the specific language
* governing rights and limitations under the License.
*
* ========================================================================
*
* Description: Default longjmp handler.
*
****************************************************************************/
#include "variety.h"
#include "ljmphdl.h"
static void default_handler( void _WCFAR *p )
{
p = p;
}
#if defined(_M_IX86)
#pragma aux (__arg_convention) default_handler;
#endif
_WCRTLINKD pfun __longjmp_handler = &default_handler;

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programs/develop/open watcom/trunk/clib/crt/ljmphdl.h Normal file
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/****************************************************************************
*
* Open Watcom Project
*
* Portions Copyright (c) 1983-2002 Sybase, Inc. All Rights Reserved.
*
* ========================================================================
*
* This file contains Original Code and/or Modifications of Original
* Code as defined in and that are subject to the Sybase Open Watcom
* Public License version 1.0 (the 'License'). You may not use this file
* except in compliance with the License. BY USING THIS FILE YOU AGREE TO
* ALL TERMS AND CONDITIONS OF THE LICENSE. A copy of the License is
* provided with the Original Code and Modifications, and is also
* available at www.sybase.com/developer/opensource.
*
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND SYBASE AND ALL CONTRIBUTORS HEREBY DISCLAIM
* ALL SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR
* NON-INFRINGEMENT. Please see the License for the specific language
* governing rights and limitations under the License.
*
* ========================================================================
*
* Description: WHEN YOU FIGURE OUT WHAT THIS FILE DOES, PLEASE
* DESCRIBE IT HERE!
*
****************************************************************************/
#ifndef _LJMPHDL_H_INCLUDED
#define _LJMPHDL_H_INCLUDED
#include "variety.h"
typedef void (*pfun)( void _WCFAR * );
#if defined(__386__)
#pragma aux __arg_convention parm caller [eax dx];
#pragma aux (__arg_convention) pfun;
#elif defined(M_I86)
#pragma aux __arg_convention parm caller [ax dx];
#pragma aux (__arg_convention) pfun;
#endif
_WCRTLINKD extern pfun __longjmp_handler;
#endif

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programs/develop/open watcom/trunk/clib/crt/seterrno.c Normal file
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/****************************************************************************
*
* Open Watcom Project
*
* Portions Copyright (c) 1983-2002 Sybase, Inc. All Rights Reserved.
*
* ========================================================================
*
* This file contains Original Code and/or Modifications of Original
* Code as defined in and that are subject to the Sybase Open Watcom
* Public License version 1.0 (the 'License'). You may not use this file
* except in compliance with the License. BY USING THIS FILE YOU AGREE TO
* ALL TERMS AND CONDITIONS OF THE LICENSE. A copy of the License is
* provided with the Original Code and Modifications, and is also
* available at www.sybase.com/developer/opensource.
*
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND SYBASE AND ALL CONTRIBUTORS HEREBY DISCLAIM
* ALL SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR
* NON-INFRINGEMENT. Please see the License for the specific language
* governing rights and limitations under the License.
*
* ========================================================================
*
* Description: Implementation of __set_errno().
*
****************************************************************************/
#ifdef __WATCOMC__
#include "variety.h"
#include <stdlib.h>
#include <errno.h>
#include "rtdata.h"
#include "seterrno.h"
_WCRTLINK void __set_errno( unsigned int err )
{
_RWD_errno = err;
}
_WCRTLINK void __set_EDOM()
{
__set_errno( EDOM );
}
_WCRTLINK void __set_ERANGE()
{
__set_errno( ERANGE );
}
_WCRTLINK int __set_EINVAL()
{
__set_errno( EINVAL );
return( -1 );
}
#if !defined(__UNIX__) && !defined(__NETWARE__)
_WCRTLINK void __set_doserrno( unsigned int err )
{
_RWD_doserrno = err;
}
#endif
#else
#include <errno.h>
void __set_errno( unsigned int err )
{
errno = err;
}
#endif

52
programs/develop/open watcom/trunk/clib/crt/seterrno.h Normal file
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/****************************************************************************
*
* Open Watcom Project
*
* Portions Copyright (c) 1983-2002 Sybase, Inc. All Rights Reserved.
*
* ========================================================================
*
* This file contains Original Code and/or Modifications of Original
* Code as defined in and that are subject to the Sybase Open Watcom
* Public License version 1.0 (the 'License'). You may not use this file
* except in compliance with the License. BY USING THIS FILE YOU AGREE TO
* ALL TERMS AND CONDITIONS OF THE LICENSE. A copy of the License is
* provided with the Original Code and Modifications, and is also
* available at www.sybase.com/developer/opensource.
*
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND SYBASE AND ALL CONTRIBUTORS HEREBY DISCLAIM
* ALL SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR
* NON-INFRINGEMENT. Please see the License for the specific language
* governing rights and limitations under the License.
*
* ========================================================================
*
* Description: errno related CLIB internal declarations.
*
****************************************************************************/
#ifndef _SETERNO_H_INCLUDED
#define _SETERNO_H_INCLUDED
#include "variety.h"
// defined in _dos\c\dosret.c
_WCRTLINK extern int __set_errno_dos( unsigned int );
#if defined(__NT__)
_WCRTLINK extern int __set_errno_nt( void );
#endif
// defined in startup\c\seterrno.c
_WCRTLINK extern void __set_errno( unsigned int );
_WCRTLINK extern int __set_EINVAL( void );
_WCRTLINK extern void __set_EDOM( void );
_WCRTLINK extern void __set_ERANGE( void );
#if !defined(__UNIX__)
_WCRTLINK extern void __set_doserrno( unsigned int );
#endif
#endif

177
programs/develop/open watcom/trunk/clib/crt/stjmp386.asm Normal file
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;*****************************************************************************
;*
;* Open Watcom Project
;*
;* Portions Copyright (c) 1983-2002 Sybase, Inc. All Rights Reserved.
;*
;* ========================================================================
;*
;* This file contains Original Code and/or Modifications of Original
;* Code as defined in and that are subject to the Sybase Open Watcom
;* Public License version 1.0 (the 'License'). You may not use this file
;* except in compliance with the License. BY USING THIS FILE YOU AGREE TO
;* ALL TERMS AND CONDITIONS OF THE LICENSE. A copy of the License is
;* provided with the Original Code and Modifications, and is also
;* available at www.sybase.com/developer/opensource.
;*
;* The Original Code and all software distributed under the License are
;* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
;* EXPRESS OR IMPLIED, AND SYBASE AND ALL CONTRIBUTORS HEREBY DISCLAIM
;* ALL SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF
;* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR
;* NON-INFRINGEMENT. Please see the License for the specific language
;* governing rights and limitations under the License.
;*
;* ========================================================================
;*
;* Description: C library setjmp/longjmp support for 386 processors
;*
;*****************************************************************************
.386p
include mdef.inc
include struct.inc
codeptr "C",__longjmp_handler
modstart setjmp
ifdef __386__
ifdef __OS2__
xref DosUnwindException
endif
endif
ifdef __NT__
xref _RtlUnwind@16
endif
xdefp "C",_setjmp
defpe _setjmp
mov [eax],ebx ; save registers
mov 4[eax],ecx
mov 8[eax],edx
mov 12[eax],esi
mov 16[eax],edi
mov 20[eax],ebp
pop 24[eax] ; get return address
mov 28[eax],esp
push 24[eax] ; push return address back on stack
mov 32[eax],es ; save segment registers
mov 34[eax],ds
mov 36[eax],cs
mov 38[eax],fs
mov 40[eax],gs
mov 42[eax],ss
ifdef __NT__
push fs:[0] ; touched this line to cause recompile
pop 44[eax]
endif
ifdef __386__
ifdef __OS2__
push fs:[0] ; get exception chain
pop 44[eax] ; ...
endif
endif
sub eax,eax ; return 0
ret ; return
_setjmp endp
;
; There is a pragma for longjmp, saying that it aborts, therefore
; the code generator does a jmp to here as opposed to a call.
xdefp "C",longjmp
defpe longjmp
ifdef __STACK__
pop eax ; get address of jmp_buf
pop edx ; get return code
endif
; Warning, warning!
; the profiler knows about the stack frame that longjmp generates.
; do not change these 3 instructions without also changing the findLongJmpStack
; pragma in profilog.c
;
push edx
push eax ; save jmp_buf & retval in safe place
mov ebp,esp
;
; end warning
;
ifdef __NT__
push eax ; save address of jmp_buf
mov eax,[eax+44]
cmp eax,fs:[0]
jne dounwind
jmp short done_unwind
dounwind:
push 0
push offset done_unwind
push eax ; unwind up to but not including SEH active
; at setjmp()
call _RtlUnwind@16 ; trashes most registers except for ebp
done_unwind:
mov esp,ebp
mov eax,0[ebp]
mov edx,4[ebp]
endif
ifdef __386__
ifdef __OS2__
push eax ; save address of jmp_buf
push 0
;; push offset unwind
mov eax, offset unwind
push eax
mov eax,8[esp]
push 44[eax]
call DosUnwindException
unwind: add esp,12
pop eax ; restore address of jmp_buf
endif
endif
push eax ; save parm regs
push edx
mov dx,42[eax] ; setup old ss:esp as a parm
mov eax,28[eax]
call __longjmp_handler ; call handler
pop edx ; restore parm regs
pop eax
mov ss,42[eax] ; load old ss:esp
mov esp,28[eax] ; ...
push 24[eax] ; push saved eip (our return address)
or edx,edx ; if return code is 0
_if e ; then
inc edx ; - set it to 1
_endif ; endif
push edx ; save return code
mov ebx,[eax] ; load up the saved registers
mov ecx,4[eax]
mov esi,12[eax]
mov edi,16[eax]
mov ebp,20[eax]
mov dx,32[eax]
verr dx ; verify segment
_if ne
sub edx,edx
_endif
mov es,dx
mov dx,38[eax]
verr dx ; verify segment
_if ne
sub edx,edx
_endif
mov fs,dx
mov dx,40[eax]
verr dx ; verify segment
_if ne
sub edx,edx
_endif
mov gs,dx
mov edx,8[eax]
mov ds,34[eax]
pop eax ; get return code
ret ; return to point following setjmp call
longjmp endp
_TEXT ends
end