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- Added dlclose(), dlerror(), dlopen() and dlsym() functions, which are

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available only under OS4. There is a variant of dlopen() in libunix.a
  which will perform a path name conversion.


git-svn-id: file:///Users/olsen/Code/migration-svn-zu-git/logical-line-staging/clib2/trunk@15206 87f5fb63-7c3d-0410-a384-fd976d0f7a62
This commit is contained in:
Olaf Barthel
2010-08-21 10:59:34 +00:00
parent 37a1fdee4f
commit 1bdfc0d143
8 changed files with 517 additions and 2 deletions
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111
library/stdlib_dlopen.c Normal file
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@ -0,0 +1,111 @@
/*
* $Id: stdlib_dlopen.c,v 1.1 2010-08-21 10:59:34 obarthel Exp $
*
* :ts=4
*
* Portable ISO 'C' (1994) runtime library for the Amiga computer
* Copyright (c) 2002-2010 by Olaf Barthel <olsen (at) sourcery.han.de>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Neither the name of Olaf Barthel nor the names of contributors
* may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _STDLIB_HEADERS_H
#include "stdlib_headers.h"
#endif /* _STDLIB_HEADERS_H */
/****************************************************************************/
/* The shared object API is available only on AmigaOS 4.0. */
#if defined(__amigaos4__)
/****************************************************************************/
#include <dlfcn.h>
/****************************************************************************/
#include <libraries/elf.h>
#include <proto/elf.h>
/****************************************************************************/
extern struct ElfIFace * __IElf;
extern Elf32_Handle __elf_handle;
/****************************************************************************/
void * dlopen(const char * path_name,int mode)
{
#if defined(UNIX_PATH_SEMANTICS)
struct name_translation_info path_name_nti;
#endif /* UNIX_PATH_SEMANTICS */
void * result = NULL;
#if defined(UNIX_PATH_SEMANTICS)
{
if(__unix_path_semantics)
{
if(path_name[0] == '\0')
{
SHOWMSG("no name given");
__set_errno(ENOENT);
goto out;
}
if(__translate_unix_to_amiga_path_name(&path_name,&path_name_nti) != 0)
goto out;
if(path_name_nti.is_root)
{
__set_errno(EACCES);
goto out;
}
}
}
#endif /* UNIX_PATH_SEMANTICS */
if(__elf_handle != NULL)
{
struct ElfIFace * IElf = __IElf;
uint32 flags;
if(mode & RTLD_LOCAL)
flags = ELF32_RTLD_LOCAL;
else if (mode & RTLD_GLOBAL)
flags = ELF32_RTLD_GLOBAL;
else
flags = 0;
result = DLOpen(__elf_handle,path_name,flags);
}
return(result);
}
/****************************************************************************/
#endif /* __amigaos4__ */