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phoenix |
#ifndef LINUXELF_H
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#define LINUXELF_H
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#include <ld_sysdep.h> /* before elf.h to get ELF_USES_RELOCA right */
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#include <elf.h>
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#include <link.h>
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#ifdef DEBUG
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# define LDSO_CONF "../util/ld.so.conf"
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# define LDSO_CACHE "../util/ld.so.cache"
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# define LDSO_PRELOAD "../util/ld.so.preload"
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#else
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# define LDSO_CONF UCLIBC_RUNTIME_PREFIX "etc/ld.so.conf"
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# define LDSO_CACHE UCLIBC_RUNTIME_PREFIX "etc/ld.so.cache"
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# define LDSO_PRELOAD UCLIBC_RUNTIME_PREFIX "etc/ld.so.preload"
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#endif
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#define LIB_ANY -1
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#define LIB_DLL 0
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#define LIB_ELF 1
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#define LIB_ELF64 0x80
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#define LIB_ELF_LIBC5 2
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#define LIB_ELF_LIBC6 3
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#define LIB_ELF_LIBC0 4
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/* Forward declarations for stuff defined in ld_hash.h */
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struct dyn_elf;
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struct elf_resolve;
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/* Definitions and prototypes for cache stuff */
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#ifdef USE_CACHE
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extern int _dl_map_cache(void);
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extern int _dl_unmap_cache(void);
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#define LDSO_CACHE_MAGIC "ld.so-"
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#define LDSO_CACHE_MAGIC_LEN (sizeof LDSO_CACHE_MAGIC -1)
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#define LDSO_CACHE_VER "1.7.0"
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#define LDSO_CACHE_VER_LEN (sizeof LDSO_CACHE_VER -1)
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typedef struct {
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char magic [LDSO_CACHE_MAGIC_LEN];
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char version [LDSO_CACHE_VER_LEN];
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int nlibs;
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} header_t;
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typedef struct {
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int flags;
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int sooffset;
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int liboffset;
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} libentry_t;
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#else
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static inline void _dl_map_cache(void) { }
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static inline void _dl_unmap_cache(void) { }
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#endif
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/* Function prototypes for non-static stuff in readelflib1.c */
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int _dl_copy_fixups(struct dyn_elf * tpnt);
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extern int _dl_parse_copy_information(struct dyn_elf *rpnt,
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unsigned long rel_addr, unsigned long rel_size, int type);
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extern void _dl_parse_lazy_relocation_information(struct elf_resolve *tpnt,
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unsigned long rel_addr, unsigned long rel_size, int type);
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extern int _dl_parse_relocation_information(struct elf_resolve *tpnt,
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unsigned long rel_addr, unsigned long rel_size, int type);
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extern struct elf_resolve * _dl_load_shared_library(int secure,
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struct dyn_elf **rpnt, struct elf_resolve *tpnt, char *full_libname);
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extern struct elf_resolve * _dl_load_elf_shared_library(int secure,
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struct dyn_elf **rpnt, char *libname);
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extern struct elf_resolve *_dl_check_if_named_library_is_loaded(const char *full_libname);
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extern int _dl_linux_resolve(void);
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/*
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* Datatype of a relocation on this platform
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*/
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#ifdef ELF_USES_RELOCA
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# define ELF_RELOC ElfW(Rela)
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#else
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# define ELF_RELOC ElfW(Rel)
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#endif
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/* Convert between the Linux flags for page protections and the
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ones specified in the ELF standard. */
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#define LXFLAGS(X) ( (((X) & PF_R) ? PROT_READ : 0) | \
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(((X) & PF_W) ? PROT_WRITE : 0) | \
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(((X) & PF_X) ? PROT_EXEC : 0))
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#endif /* LINUXELF_H */
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