src/include/link_elf.h - diff

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Diff for /src/include/link_elf.h between version 1.1 and 1.2

-version 1.1, 2002/06/07 03:00:01
+version 1.2, 2002/08/06 07:40:31
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  /*      $OpenBSD$       */
  /*
-  * Public domain.
+  * Copyright (c) 1996 Per Fogelstrom
+  *
+  * Redistribution and use in source and binary forms, with or without
+  * modification, are permitted provided that the following conditions
+  * are met:
+  * 1. Redistributions of source code must retain the above copyright
+  *    notice, this list of conditions and the following disclaimer.
+  * 2. Redistributions in binary form must reproduce the above copyright
+  *    notice, this list of conditions and the following disclaimer in the
+  *    documentation and/or other materials provided with the distribution.
+  * 3. All advertising materials mentioning features or use of this software
+  *    must display the following acknowledgement:
+  *      This product includes software developed under OpenBSD by
+  *      Per Fogelstrom.
+  * 4. The name of the author may not be used to endorse or promote products
+  *    derived from this software without specific prior written permission.
+  *
+  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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 _LINK_ELF_H
  #include <elf_abi.h>
  #ifndef DT_PROCNUM
  #define DT_PROCNUM 0
  #endif
- /*
+ /* Structure describing a loaded shared object.  The `l_next' and `l_prev'
-  * struct link_map is a part of the protocol between the debugger and
+    members form a chain of all the shared objects loaded at startup.
-  * ld.so.
-  */
- struct link_map {
-         caddr_t         l_addr;         /* Base address of library */
-         const char      *l_name;        /* Absolute path to library */
-         void            *l_ld;          /* pointer to _DYNAMIC */
-         struct link_map *l_next;
-         struct link_map *l_prev;
- };
+    These data structures exist in space used by the run-time dynamic linker;
+    modifying them may have disastrous results.  */
+ struct link_map
+   {
+     /* These first few members are part of the protocol with the debugger.
+        This is the same format used in SVR4.  */
+     Elf_Addr l_addr;            /* Base address shared object is loaded at.  */
+     Elf_Addr l_offs;            /* Offset */
+     char *l_name;               /* Absolute file name object was found in.  */
+     Elf_Dyn *l_ld;              /* Dynamic section of the shared object.  */
+     struct link_map *l_next, *l_prev; /* Chain of loaded objects.  */
+     /* All following members are internal to the dynamic linker.
+        They may change without notice.  */
+     const char *l_libname;      /* Name requested (before search).  */
+     /* Indexed pointers to dynamic section.  */
+     Elf_Dyn *l_info[DT_NUM + DT_PROCNUM];
+     const Elf_Phdr *l_phdr;     /* Pointer to program header table in core.  */
+     Elf_Word l_phnum;           /* Number of program header entries.  */
+     Elf_Addr l_entry;           /* Entry point location.  */
+     /* Symbol hash table.  */
+     Elf_Word l_nbuckets;
+     const Elf_Word *l_buckets, *l_chain;
+     unsigned int l_opencount;   /* Reference count for dlopen/dlclose.  */
+     enum                        /* Where this object came from.  */
+       {
+         lt_executable,          /* The main executable program.  */
+         lt_interpreter,         /* The interpreter: the dynamic linker.  */
+         lt_library,             /* Library needed by main executable.  */
+         lt_loaded,              /* Extra run-time loaded shared object.  */
+       } l_type:2;
+     unsigned int l_deps_loaded:1; /* Nonzero if DT_NEEDED items loaded.  */
+     unsigned int l_relocated:1; /* Nonzero if object's relocations done.  */
+     unsigned int l_init_called:1; /* Nonzero if DT_INIT function called.  */
+     unsigned int l_init_running:1; /* Nonzero while DT_INIT function runs.  */
+   };
+ #endif /* !_LINK_ELF_H */