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authorJakub Jelinek <jakub@redhat.com>2007-07-12 18:26:36 +0000
committerJakub Jelinek <jakub@redhat.com>2007-07-12 18:26:36 +0000
commit0ecb606cb6cf65de1d9fc8a919bceb4be476c602 (patch)
tree2ea1f8305970753e4a657acb2ccc15ca3eec8e2c /elf/link.h
parent7d58530341304d403a6626d7f7a1913165fe2f32 (diff)
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2.5-18.1
Diffstat (limited to 'elf/link.h')
-rw-r--r--elf/link.h83
1 files changed, 76 insertions, 7 deletions
diff --git a/elf/link.h b/elf/link.h
index 6d5ad9d..076531d 100644
--- a/elf/link.h
+++ b/elf/link.h
@@ -1,6 +1,6 @@
/* Data structure for communication from the run-time dynamic linker for
loaded ELF shared objects.
- Copyright (C) 1995-1999, 2000, 2001, 2004 Free Software Foundation, Inc.
+ Copyright (C) 1995-2001, 2004, 2005, 2006 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
@@ -33,6 +33,7 @@
#define _ElfW_1(e,w,t) e##w##t
#include <bits/elfclass.h> /* Defines __ELF_NATIVE_CLASS. */
+#include <bits/link.h>
/* Rendezvous structure used by the run-time dynamic linker to communicate
details of shared object loading to the debugger. If the executable's
@@ -94,6 +95,46 @@ struct link_map
#ifdef __USE_GNU
+/* Version numbers for la_version handshake interface. */
+#define LAV_CURRENT 1
+
+/* Activity types signaled through la_activity. */
+enum
+ {
+ LA_ACT_CONSISTENT, /* Link map consistent again. */
+ LA_ACT_ADD, /* New object will be added. */
+ LA_ACT_DELETE /* Objects will be removed. */
+ };
+
+/* Values representing origin of name for dynamic loading. */
+enum
+ {
+ LA_SER_ORIG = 0x01, /* Original name. */
+ LA_SER_LIBPATH = 0x02, /* Directory from LD_LIBRARY_PATH. */
+ LA_SER_RUNPATH = 0x04, /* Directory from RPATH/RUNPATH. */
+ LA_SER_CONFIG = 0x08, /* Found through ldconfig. */
+ LA_SER_DEFAULT = 0x40, /* Default directory. */
+ LA_SER_SECURE = 0x80 /* Unused. */
+ };
+
+/* Values for la_objopen return value. */
+enum
+ {
+ LA_FLG_BINDTO = 0x01, /* Audit symbols bound to this object. */
+ LA_FLG_BINDFROM = 0x02 /* Audit symbols bound from this object. */
+ };
+
+/* Values for la_symbind flags parameter. */
+enum
+ {
+ LA_SYMB_NOPLTENTER = 0x01, /* la_pltenter will not be called. */
+ LA_SYMB_NOPLTEXIT = 0x02, /* la_pltexit will not be called. */
+ LA_SYMB_STRUCTCALL = 0x04, /* Return value is a structure. */
+ LA_SYMB_DLSYM = 0x08, /* Binding due to dlsym call. */
+ LA_SYMB_ALTVALUE = 0x10 /* Value has been changed by a previous
+ la_symbind call. */
+ };
+
struct dl_phdr_info
{
ElfW(Addr) dlpi_addr;
@@ -101,22 +142,50 @@ struct dl_phdr_info
const ElfW(Phdr) *dlpi_phdr;
ElfW(Half) dlpi_phnum;
- /* Note: the next two members were introduced after the first
+ /* Note: Following members were introduced after the first
version of this structure was available. Check the SIZE
- argument passed to the dl_iterate_phdr() callback to determine
- whether or not they are provided. */
+ argument passed to the dl_iterate_phdr callback to determine
+ whether or not each later member is available. */
/* Incremented when a new object may have been added. */
unsigned long long int dlpi_adds;
/* Incremented when an object may have been removed. */
unsigned long long int dlpi_subs;
+
+ /* If there is a PT_TLS segment, its module ID as used in
+ TLS relocations, else zero. */
+ size_t dlpi_tls_modid;
+
+ /* The address of the calling thread's instance of this module's
+ PT_TLS segment, if it has one and it has been allocated
+ in the calling thread, otherwise a null pointer. */
+ void *dlpi_tls_data;
};
__BEGIN_DECLS
-extern int dl_iterate_phdr (int (*callback) (struct dl_phdr_info *info,
- size_t size, void *data),
- void *data);
+extern int dl_iterate_phdr (int (*__callback) (struct dl_phdr_info *,
+ size_t, void *),
+ void *__data);
+
+
+/* Prototypes for the ld.so auditing interfaces. These are not
+ defined anywhere in ld.so but instead have to be provided by the
+ auditing DSO. */
+extern unsigned int la_version (unsigned int __version);
+extern void la_activity (uintptr_t *__cookie, unsigned int __flag);
+extern char *la_objsearch (const char *__name, uintptr_t *__cookie,
+ unsigned int __flag);
+extern unsigned int la_objopen (struct link_map *__map, Lmid_t __lmid,
+ uintptr_t *__cookie);
+extern void la_preinit (uintptr_t *__cookie);
+extern uintptr_t la_symbind32 (Elf32_Sym *__sym, unsigned int __ndx,
+ uintptr_t *__refcook, uintptr_t *__defcook,
+ unsigned int *__flags, const char *__symname);
+extern uintptr_t la_symbind64 (Elf64_Sym *__sym, unsigned int __ndx,
+ uintptr_t *__refcook, uintptr_t *__defcook,
+ unsigned int *__flags, const char *__symname);
+extern unsigned int la_objclose (uintptr_t *__cookie);
__END_DECLS