diff options
Diffstat (limited to 'sysdeps/unix/sysv/aix/dlldr.h')
| -rw-r--r-- | sysdeps/unix/sysv/aix/dlldr.h | 112 |
1 files changed, 112 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/aix/dlldr.h b/sysdeps/unix/sysv/aix/dlldr.h new file mode 100644 index 0000000000..d729244c52 --- /dev/null +++ b/sysdeps/unix/sysv/aix/dlldr.h @@ -0,0 +1,112 @@ +/* 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; + |