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libver/lib/ver.h

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Première version
2000-07-28 17:39:02 +02:00
#ifndef _LIBVER
#define _LIBVER
#ifdef __cplusplus
extern "C" {
#endif
Add glibc 2.2.5 linux support.
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#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;
};
Première version
2000-07-28 17:39:02 +02:00
#else
Add glibc 2.2.5 linux support.
2003-01-17 08:52:42 +01:00
# include <sys/link.h>
Première version
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#endif
typedef int VERT_Info;
#define VERD_VERSION 1
#define VERD_TAG 2
#define VERD_SRCFILE 3
#define VERD_AUTHOR 4
typedef int VERT_Print_Mode;
#define VERD_VERBOSE 1
#define VERD_MINIMAL 2
typedef int VERT_Status;
#define VER_ERROR(s) (s < 0) /* Tous les codes retour n<>gatifs correspondent <20> des erreurs */
#define VERS_OK 1
#define VERS_KO 0
#define VERS_ERRMEM -1 /* Probl<62>me d'allocation m<>moire */
#define VERS_ERRAPI -2 /* Utilisation incorrecte des API */
typedef struct {
char * name;
char * version;
char * tag;
char * srcfile;
char * author;
} VERT_Info_Container;
typedef VERT_Info_Container * VERT_Fcn (void);
Add glibc 2.2.5 linux support.
2003-01-17 08:52:42 +01:00
typedef struct _link_map VERT_Object;
Première version
2000-07-28 17:39:02 +02:00
typedef unsigned int VERT_Index;
#define VER_FCN_NAME "VER_Info_Export"
#define INIT(x) VERT_Info_Container * Container; VER_Info_Init (&Container, x);
#define VERSION(x) if (Container) VER_Info_Set(Container,VERD_VERSION, x);
#define TAG(x) if (Container) VER_Info_Set(Container,VERD_TAG, x);
#define SRCFILE(x) if (Container) VER_Info_Set(Container,VERD_SRCFILE, x);
#define AUTHOR(x) if (Container) VER_Info_Set(Container,VERD_AUTHOR, x);
#define VER_INFO_EXPORT(obj,ver,tag,file,author) \
VERT_Info_Container * VER_Info_Export_##obj (void); \
VERT_Info_Container * VER_Info_Export_##obj (void) \
{ \
INIT(#obj) \
VERSION(ver) \
TAG(tag) \
SRCFILE(file) \
AUTHOR(author) \
return (Container); \
}
char VER_Error_Msg [256];
/*------------------------------------------------------------------------------*/
/* Affichage des informations export<72>es par l'objet courant */
/*------------------------------------------------------------------------------*/
/* (I) Stream : pointeur sur le flux de sortie */
/* (I) Mode : mode d'affichage */
/*------------------------------------------------------------------------------*/
VERT_Status VER_Object_Print (FILE * Stream, VERT_Print_Mode Mode);
/*------------------------------------------------------------------------------*/
/* R<>cup<75>ration d'un conteneur d'informations */
/*------------------------------------------------------------------------------*/
/* (O) Container : adresse d'un pointeur sur le conteneur d'informations */
/* (I) Object : objet dans lequel on effectue la recherche */
/* (I) Index : pointeur d'index <20> partir duquel on effectue la recherche */
/*------------------------------------------------------------------------------*/
VERT_Status VER_Info_Next_Get (VERT_Info_Container ** Container, VERT_Object * Object, VERT_Index * Index);
/*------------------------------------------------------------------------------*/
/* Affichage des informations d'un conteneur */
/*------------------------------------------------------------------------------*/
/* (I) Stream : pointeur sur le flux de sortie */
/* (I) Container : pointeur sur le conteneur d'informations */
/* (I) Mode : mode d'affichage */
/*------------------------------------------------------------------------------*/
VERT_Status VER_Info_Print (FILE * Stream, VERT_Info_Container * Container, VERT_Print_Mode Mode);
/*------------------------------------------------------------------------------*/
/* Cr<43>ation d'un conteneur d'informations */
/*------------------------------------------------------------------------------*/
/* (O) Contanier : adresse d'un pointeur sur le container <20> cr<63>er */
/* (I) Object_Name : nom de l'objet */
/*------------------------------------------------------------------------------*/
VERT_Status VER_Info_Init (VERT_Info_Container ** Container, const char * Object_Name);
/*------------------------------------------------------------------------------*/
/* Mise <20> jour d'une information */
/*------------------------------------------------------------------------------*/
/* (I) Container : pointeur sur le conteneur d'informations */
/* (I) Info_Type : type d'information <20> mettre <20> jour */
/* (I) Value : valeur de l'information */
/*------------------------------------------------------------------------------*/
VERT_Status VER_Info_Set (VERT_Info_Container * Container, VERT_Info Info_Type, const char * Value);
/*------------------------------------------------------------------------------*/
/* Effacement d'une information */
/*------------------------------------------------------------------------------*/
/* (I) Container : pointeur sur le conteneur d'informations */
/* (I) Info_Type : type d'information <20> effacer */
/*------------------------------------------------------------------------------*/
VERT_Status VER_Info_Clean (VERT_Info_Container * Container, VERT_Info Info_Type);
/*------------------------------------------------------------------------------*/
/* Destruction d'un container d'informations */
/*------------------------------------------------------------------------------*/
/* (I) Container : pointeur sur le conteneur d'informations */
/*------------------------------------------------------------------------------*/
VERT_Status VER_Info_End (VERT_Info_Container * Container);
/*------------------------------------------------------------------------------*/
#ifdef __cplusplus
}
#endif
#endif
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