From: Ulrich Drepper <drepper@redhat.com>
Date: Wed, 4 Apr 2001 01:34:38 +0000 (+0000)
Subject: AIX __loadx defines.
X-Git-Tag: upstream/2.30~10627^2~2006
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=852702b5c160a6152f4a56941980aefa9977d3d1;p=external%2Fglibc.git

AIX __loadx defines.
---

diff --git a/sysdeps/unix/sysv/aix/dlldr.h b/sysdeps/unix/sysv/aix/dlldr.h
new file mode 100644
index 0000000..d729244
--- /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;
+