diff options
Diffstat (limited to 'mdk-stage1/dietlibc/libdl/_dl_int.h')
| -rw-r--r-- | mdk-stage1/dietlibc/libdl/_dl_int.h | 138 |
1 files changed, 129 insertions, 9 deletions
diff --git a/mdk-stage1/dietlibc/libdl/_dl_int.h b/mdk-stage1/dietlibc/libdl/_dl_int.h index 659e6ee0f..1bab10a92 100644 --- a/mdk-stage1/dietlibc/libdl/_dl_int.h +++ b/mdk-stage1/dietlibc/libdl/_dl_int.h @@ -1,31 +1,151 @@ #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 */ - void * mem_base; /* base address of maped *.so */ unsigned long mem_size; /* len of mem block */ - unsigned int lnk_count; /* reference count */ + 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 */ - Elf32_Sym * dyn_sym_tab; /* dynamic symbol table */ char * dyn_str_tab; /* dyn_name table */ + Elf_Sym * dyn_sym_tab; /* dynamic symbol table */ + _dl_rel_t* plt_rel; /* PLT relocation table */ - Elf32_Rel * plt_rel; /* PLT relocation table */ - - /* FINI */ + /* INIT / FINI */ void (*fini)(void); }; -#define HASH_BUCKET_LEN(p) ((p)) +/* 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_LEN(p) (*((p)+1)) #define HASH_CHAIN(p) ((p)+2+HASH_BUCKET_LEN(p)) -unsigned long elf_hash(const unsigned char *name); +/* _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 |