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/* Copyright (C) 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.
*/
/*
int __loadx(flag, module, arg1, arg2, arg3)
The __loadx() is a call to ld_loadutil() kernel function, which
does the real work. Note ld_loadutil() is not exported an cannot be
called directly from user space.
void *ld_loadutil() call is a utility function used for loader extensions
supporting run-time linking and dl*() functions.
void * - will return the modules entry point if it succeds of NULL
on failure.
int flag - the flag field performas a dual role: the top 8 bits specify
the work for __loadx() to perform, the bottom 8 bits are
used to pass flags to the work routines, all other bits are
reserved.
*/
#define DL_LOAD 0x1000000 /* __loadx(flag,buf, buf_len, filename, libr_path) */
#define DL_POSTLOADQ 0x2000000 /* __loadx(flag,buf, buf_len, module_handle) */
#define DL_EXECQ 0x3000000 /* __loadx(flag,buf, buf_len) */
#define DL_EXITQ 0x4000000 /* __loadx(flag,buf, buf_len) */
#define DL_PREUNLOADQ 0x5000000 /* __loadx(flag,buf, buf_len, module_handle) */
#define DL_INIT 0x6000000 /* __loadx(flag,NULL) */
#define DL_GETSYM 0x7000000 /* __loadx(flag,symbol, index, modules_data_origin) */
#define DL_SETDEPEND 0x8000000 /* __loadx(flag,import_data_org, import_index, */
/* export_data_org, export_index) */
#define DL_DELDEPEND 0x9000000 /* __loadx(flag,import_data_org, import_index, */
/* export_data_org, export_index) */
#define DL_GLOBALSYM 0xA000000 /* __loadx(flag,symbol_name, ptr_to_rec_index, */
/* ptr_to_rec_data_org) */
#define DL_UNIX_SYSCALL 0xB000000 /* __loadx(flag,syscall_symbol_name) */
#define DL_FUNCTION_MASK 0xFF000000
#define DL_SRCHDEPENDS 0x00100000
#define DL_SRCHMODULE 0x00080000
#define DL_SRCHLOADLIST 0x00040000
#define DL_LOAD_LDX1 0x00040000
#define DL_LOAD_RTL 0x00020000
#define DL_HASHSTRING 0x00020000
#define DL_INFO_OK 0x00010000
#define DL_LOAD_DLINFO 0x00010000
#define DL_UNLOADED 0x00020000
typedef union _dl_info
{
struct {
uint _xflags; /* flag bits in the array */
uint _size; /* size of this structure */
uint _arraylen; /* number of following elements */
} _dl_stat;
struct {
caddr_t _textorg; /* start of loaded program image */
caddr_t _dataorg; /* start of data instance */
uint _datasize; /* size of data instance */
ushort _index; /* index of this le in la_dynlist */
ushort _mflags; /* info about module from load() */
} _dl_array;
} DL_INFO;
#define dlinfo_xflags _dl_stat._xflags
#define dlinfo_arraylen _dl_stat._arraylen
#define dlinfo_size _dl_stat._size
#define dlinfo_textorg _dl_array._textorg
#define dlinfo_datasize _dl_array._datasize
#define dlinfo_dataorg _dl_array._dataorg
#define dlinfo_index _dl_array._index
#define dlinfo_flags _dl_array._mflags
#define DL_HAS_RTINIT 0x1 /* indicates the module __rtinit symbols */
#define DL_IS_NEW 0x2 /* indicates that the module is newly loaded */
struct _xArgs
{
char *libpath;
DL_INFO *info;
uint infosize;
};
/* Shared Object DATA used for dl-open,dl-sym & dl-close support */
typedef struct
{
void *handle; /* handle for __loadx */
uint type; /* type of __loadx flag */
ushort index; /* dlinfo_index */
caddr_t dataorg; /* dlinfo_dataorg */
} DL_SODATA;
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