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Add glibc-2.2.2 support

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Export glibc private data in libver-glibc-x.y.z.h
Split ver.h into ver.h and libver.h
Rework Makefile.
This commit is contained in:
agibert 2003-01-17 17:00:58 +00:00
parent ee099f1d31
commit 9d4490420c
3 changed files with 16 additions and 201 deletions
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7
lib/Makefile
View File

@ -1,7 +1,10 @@
GLIBC_RELEASE = $(shell ls /lib/libc-?.?.?.so | sed -e "s/^\/lib\/libc-.\..\.//" -e "s/\.so//")
all: libver.a libver.so
libver.o: libver.c ver.h Makefile
gcc -c -g -o libver.o -I . libver.c
libver.o: libver.c libver.h ver.h Makefile
gcc -c -g -D__GLIBC_RELEASE__=$(GLIBC_RELEASE) -o libver.o -I . libver.c
libver.a: libver.o
ar -r libver.a libver.o

12
lib/libver.c
View File

@ -6,9 +6,9 @@
#include <libelf.h>
#endif
#include <dlfcn.h>
#include <ver.h>
#include <libver.h>
VER_INFO_EXPORT (libver, "$Revision: 1.2 $", "$Name: $", __FILE__, "$Author: agibert $")
VER_INFO_EXPORT (libver, "$Revision: 1.3 $", "$Name: $", __FILE__, "$Author: agibert $")
void VER_Error_Print (void);
void * VER_Symbol_Next_Find (const char *, VERT_Object *, VERT_Index *);
@ -340,10 +340,6 @@ VERT_Status VER_Object_Print (FILE * Stream, VERT_Print_Mode Mode)
- autant d'objets qui ont chargés dynamiquement par le linker (.so)
*/
/* On commence par récupèrer l'objet principal */
Handle = dlopen (NULL, RTLD_LAZY);
#ifdef __linux
/*
Sous LINUX, le linker définit une variable globale bien pratique qui référence
@ -359,6 +355,10 @@ VERT_Status VER_Object_Print (FILE * Stream, VERT_Print_Mode Mode)
NB : cette fonction n'existe pas sous LINUX.
*/
/* On commence par récupèrer l'objet principal */
Handle = dlopen (NULL, RTLD_LAZY);
Object = (VERT_Object *)malloc (sizeof (VERT_Object));
dlinfo (Handle, RTLD_DI_LINKMAP, &Object);
#endif

194
lib/ver.h
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@ -5,196 +5,6 @@
extern "C" {
#endif
#ifdef __linux
# define DT_THISPROCNUM 0
# include <link.h>
typedef __u_quad_t ino64_t;
/* Some internal data structures of the dynamic linker used in the
linker map. We only provide forward declarations. */
struct libname_list;
struct r_found_version;
struct r_search_path_elem;
/* Forward declaration. */
struct link_map;
/* Structure to describe a single list of scope elements. The lookup
functions get passed an array of pointers to such structures. */
struct r_scope_elem
{
/* Array of maps for the scope. */
struct link_map **r_list;
/* Number of entries in the scope. */
unsigned int r_nlist;
};
/* Structure to record search path and allocation mechanism. */
struct r_search_path_struct
{
struct r_search_path_elem **dirs;
int malloced;
};
struct link_map_machine
{
/* empty by default */
};
/* Structure describing a loaded shared object. The `l_next' and `l_prev'
members form a chain of all the shared objects loaded at startup.
These data structures exist in space used by the run-time dynamic linker;
modifying them may have disastrous results.
This data structure might change in future, if necessary. User-level
programs must avoid defining objects of this type. */
struct _link_map
{
/* These first few members are part of the protocol with the debugger.
This is the same format used in SVR4. */
ElfW(Addr) l_addr; /* Base address shared object is loaded at. */
char *l_name; /* Absolute file name object was found in. */
ElfW(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. */
struct libname_list *l_libname;
/* Indexed pointers to dynamic section.
[0,DT_NUM) are indexed by the processor-independent tags.
[DT_NUM,DT_NUM+DT_THISPROCNUM) are indexed by the tag minus DT_LOPROC.
[DT_NUM+DT_THISPROCNUM,DT_NUM+DT_THISPROCNUM+DT_EXTRANUM) are indexed
by DT_EXTRATAGIDX(tagvalue) and
[DT_NUM+DT_THISPROCNUM+DT_VERSIONTAGNUM,
DT_NUM+DT_THISPROCNUM+DT_VERSIONTAGNUM+DT_EXTRANUM)
are indexed by DT_EXTRATAGIDX(tagvalue) (see <elf.h>). */
ElfW(Dyn) *l_info[DT_NUM + DT_THISPROCNUM + DT_VERSIONTAGNUM
+ DT_EXTRANUM];
const ElfW(Phdr) *l_phdr; /* Pointer to program header table in core. */
ElfW(Addr) l_entry; /* Entry point location. */
ElfW(Half) l_phnum; /* Number of program header entries. */
ElfW(Half) l_ldnum; /* Number of dynamic segment entries. */
/* Array of DT_NEEDED dependencies and their dependencies, in
dependency order for symbol lookup (with and without
duplicates). There is no entry before the dependencies have
been loaded. */
struct r_scope_elem l_searchlist;
/* We need a special searchlist to process objects marked with
DT_SYMBOLIC. */
struct r_scope_elem l_symbolic_searchlist;
/* Dependent object that first caused this object to be loaded. */
struct link_map *l_loader;
/* Symbol hash table. */
Elf_Symndx l_nbuckets;
const Elf_Symndx *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_library, /* Library needed by main executable. */
lt_loaded /* Extra run-time loaded shared object. */
} l_type:2;
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_global:1; /* Nonzero if object in _dl_global_scope. */
unsigned int l_reserved:2; /* Reserved for internal use. */
unsigned int l_phdr_allocated:1; /* Nonzero if the data structure pointed
to by `l_phdr' is allocated. */
unsigned int l_soname_added:1; /* Nonzero if the SONAME is for sure in
the l_libname list. */
unsigned int l_faked:1; /* Nonzero if this is a faked descriptor
without associated file. */
/* Array with version names. */
unsigned int l_nversions;
struct r_found_version *l_versions;
/* Collected information about own RPATH directories. */
struct r_search_path_struct l_rpath_dirs;
/* Collected results of relocation while profiling. */
ElfW(Addr) *l_reloc_result;
/* Pointer to the version information if available. */
ElfW(Versym) *l_versyms;
/* String specifying the path where this object was found. */
const char *l_origin;
/* Start and finish of memory map for this object. l_map_start
need not be the same as l_addr. */
ElfW(Addr) l_map_start, l_map_end;
/* Default array for 'l_scope'. */
struct r_scope_elem *l_scope_mem[4];
/* Size of array allocated for 'l_scope'. */
size_t l_scope_max;
/* This is an array defining the lookup scope for this link map.
There are at most three different scope lists. */
struct r_scope_elem **l_scope;
/* A similar array, this time only with the local scope. This is
used occasionally. */
struct r_scope_elem *l_local_scope[2];
/* This information is kept to check for sure whether a shared
object is the same as one already loaded. */
dev_t l_dev;
ino64_t l_ino;
/* Collected information about own RUNPATH directories. */
struct r_search_path_struct l_runpath_dirs;
/* List of object in order of the init and fini calls. */
struct link_map **l_initfini;
/* List of the dependencies introduced through symbol binding. */
unsigned int l_reldepsmax;
unsigned int l_reldepsact;
struct link_map **l_reldeps;
/* Various flag words. */
ElfW(Word) l_feature_1;
ElfW(Word) l_flags_1;
/* Temporarily used in `dl_close'. */
unsigned int l_idx;
struct link_map_machine l_mach;
struct
{
const ElfW(Sym) *sym;
int type_class;
#ifdef DL_LOOKUP_RETURNS_MAP
struct link_map *value;
#else
ElfW(Addr) value;
#endif
const ElfW(Sym) *ret;
} l_lookup_cache;
};
#else
# include <sys/link.h>
#endif
typedef int VERT_Info;
#define VERD_VERSION 1
@ -249,7 +59,9 @@ VERT_Info_Container * VER_Info_Export_##obj (void) \
return (Container); \
}
char VER_Error_Msg [256];
/*------------------------------------------------------------------------------*/
/* Affichage des informations exportées par l'objet courant */