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#ifndef ___DL_INT_H__
#define ___DL_INT_H__
#if defined(__alpha__) || defined(__sparc64__) || defined(__x86_64__)
#define ELF_CLASS ELFCLASS64
#else
#define ELF_CLASS ELFCLASS32
#endif
#include <elf.h>
#include <dlfcn.h>
#include "_dl_rel.h"
#if ELF_CLASS == ELFCLASS32
#define Elf_Addr Elf32_Addr
#define Elf_Dyn Elf32_Dyn
#define Elf_Ehdr Elf32_Ehdr
#define Elf_Phdr Elf32_Phdr
#define Elf_Rel Elf32_Rel
#define Elf_Rela Elf32_Rela
#define Elf_Sym Elf32_Sym
#define ELF_R_SYM(x) ELF32_R_SYM((x))
#define ELF_R_TYPE(x) ELF32_R_TYPE((x))
#define ELF_ST_BIND(x) ELF32_ST_BIND((x))
#define ELF_ST_TYPE(x) ELF32_ST_TYPE((x))
#else
#define Elf_Addr Elf64_Addr
#define Elf_Dyn Elf64_Dyn
#define Elf_Ehdr Elf64_Ehdr
#define Elf_Phdr Elf64_Phdr
#define Elf_Rel Elf64_Rel
#define Elf_Rela Elf64_Rela
#define Elf_Sym Elf64_Sym
#define ELF_R_SYM(x) ELF64_R_SYM((x))
#define ELF_R_TYPE(x) ELF64_R_TYPE((x))
#define ELF_ST_BIND(x) ELF64_ST_BIND((x))
#define ELF_ST_TYPE(x) ELF64_ST_TYPE((x))
#endif
//#define DEBUG
#ifdef DEBUG
#ifndef __DIET_LD_SO__
#include <stdio.h>
#define pf(s) write(2,s,strlen(s))
#define ph(l) fdprintf(2,"%08lx",(l))
#endif
#endif
#define RTLD_USER 0x10000000
#define RTLD_NOSONAME 0x20000000
#define LDSO_FLAGS (RTLD_LAZY|RTLD_GLOBAL|RTLD_NOSONAME)
struct _dl_handle {
char * mem_base; /* base address of maped *.so / or zero if program | Elf_Addr l_addr */
char * l_name; /* Abloslute filename of this object */
Elf_Dyn* dynamic; /* _DYNAMIC */
struct _dl_handle *next;
struct _dl_handle *prev;
unsigned int flags; /* FLAGS */
char * name; /* name of shared object */
/* basic */
unsigned long mem_size; /* len of mem block */
unsigned long lnk_count; /* reference count (other libraries) */
/* lazy evaluator data */
unsigned long*pltgot; /* PLT/GOT */
/* symbol resolve helper */
unsigned long*hash_tab; /* hash table */
char * dyn_str_tab; /* dyn_name table */
Elf_Sym * dyn_sym_tab; /* dynamic symbol table */
_dl_rel_t* plt_rel; /* PLT relocation table */
/* INIT / FINI */
void (*fini)(void);
};
/* debug communication (GDB) (dyn-linker only) */
struct r_debug {
int r_version;
struct _dl_handle* r_map;
unsigned long r_brk;
enum {
RT_CONSISTENT, /* mapping complete */
RT_ADD, /* begin add object */
RT_DELETE, /* begin del object */
} r_state;
unsigned long r_ldbase;
};
#define HASH_BUCKET_LEN(p) (*((p)))
#define HASH_BUCKET(p) ((p)+2)
#define HASH_CHAIN_LEN(p) (*((p)+1))
#define HASH_CHAIN(p) ((p)+2+HASH_BUCKET_LEN(p))
/* _dl_alloc.c */
extern struct _dl_handle* _dl_root_handle;
extern struct _dl_handle* _dl_top_handle;
extern struct _dl_handle* _dl_free_list;
#ifndef __DIET_LD_SO__
void _dl_free_handle(struct _dl_handle* dh);
struct _dl_handle* _dl_get_handle();
struct _dl_handle* _dl_find_lib(const char* name);
/* _dl_open.c */
void *_dl_open(const char* filename, int flags);
/* _dl_load.c */
void *_dl_load(const char* filename, const char*pathname, int fd, int flags);
struct _dl_handle* _dl_dyn_scan(struct _dl_handle* dh, void* dyn_addr, int flags);
/* _dl_search.c */
void _dl_set_rpath(const char *path);
const char* _dl_get_rpath();
int _dl_search(char *buf, int len, const char *filename);
/* dlsym.c */
void *_dlsym(void*dh,char*symbol);
void *_dl_sym_search_str(struct _dl_handle*h,char*name);
void *_dl_sym(struct _dl_handle * h, int symbol);
/* _dl_queue.c */
int _dl_queue_lib(const char* name, int flags);
int _dl_open_dep();
/* _dl_relocate.c */
int _dl_relocate(struct _dl_handle* dh, _dl_rel_t *rel, int num);
/* dlerror.c */
extern unsigned int _dl_error;
extern const char* _dl_error_location;
extern const char* _dl_error_data;
#endif
#endif
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