Phase one of my evil plan to clean up ld.so...

1 files changed, 91 insertions, 0 deletions

diff --git a/ldso/include/dl-elf.h b/ldso/include/dl-elf.h
new file mode 100644
index 000000000..95de118f5
--- /dev/null
+++ b/ldso/include/dl-elf.h
@@ -0,0 +1,91 @@
+#ifndef LINUXELF_H
+#define LINUXELF_H
+
+#include <ld_sysdep.h> /* before elf.h to get ELF_USES_RELOCA right */
+#include <elf.h>
+#include <link.h>
+
+#ifdef DEBUG
+#  define LDSO_CONF  "../util/ld.so.conf"
+#  define LDSO_CACHE "../util/ld.so.cache"
+#  define LDSO_PRELOAD "../util/ld.so.preload"
+#else
+#  define LDSO_CONF  UCLIBC_TARGET_PREFIX "etc/ld.so.conf"
+#  define LDSO_CACHE UCLIBC_TARGET_PREFIX "etc/ld.so.cache"
+#  define LDSO_PRELOAD UCLIBC_TARGET_PREFIX "etc/ld.so.preload"
+#endif
+
+
+#define LIB_ANY	     -1
+#define LIB_DLL       0
+#define LIB_ELF       1
+#define LIB_ELF_LIBC5 2
+#define LIB_ELF_LIBC6 3
+#define LIB_ELF64     0x80
+
+/* Forward declarations for stuff defined in ld_hash.h */
+struct dyn_elf;
+struct elf_resolve;
+
+
+/* Definitions and prototypes for cache stuff */
+#ifdef USE_CACHE
+extern int _dl_map_cache(void);
+extern int _dl_unmap_cache(void);
+
+#define LDSO_CACHE_MAGIC "ld.so-"
+#define LDSO_CACHE_MAGIC_LEN (sizeof LDSO_CACHE_MAGIC -1)
+#define LDSO_CACHE_VER "1.7.0"
+#define LDSO_CACHE_VER_LEN (sizeof LDSO_CACHE_VER -1)
+
+typedef struct {
+	char magic   [LDSO_CACHE_MAGIC_LEN];
+	char version [LDSO_CACHE_VER_LEN];
+	int nlibs;
+} header_t;
+
+typedef struct {
+	int flags;
+	int sooffset;
+	int liboffset;
+} libentry_t;
+
+#else
+static inline void _dl_map_cache(void) { }
+static inline void _dl_unmap_cache(void) { }
+#endif	
+
+
+/* Function prototypes for non-static stuff in readelflib1.c */
+int _dl_copy_fixups(struct dyn_elf * tpnt);
+extern int _dl_parse_copy_information(struct dyn_elf *rpnt,
+	unsigned long rel_addr, unsigned long rel_size, int type);
+extern void _dl_parse_lazy_relocation_information(struct elf_resolve *tpnt,
+	unsigned long rel_addr, unsigned long rel_size, int type);
+extern int _dl_parse_relocation_information(struct elf_resolve *tpnt,
+	unsigned long rel_addr, unsigned long rel_size, int type);
+extern struct elf_resolve * _dl_load_shared_library(int secure, 
+	struct dyn_elf **rpnt, struct elf_resolve *tpnt, char *full_libname);
+extern struct elf_resolve * _dl_load_elf_shared_library(int secure, 
+	struct dyn_elf **rpnt, char *libname);
+extern int _dl_linux_resolve(void);
+
+
+/*
+ * Datatype of a relocation on this platform
+ */
+#ifdef ELF_USES_RELOCA
+# define ELF_RELOC	ElfW(Rela)
+#else
+# define ELF_RELOC	ElfW(Rel)
+#endif
+
+
+/* Convert between the Linux flags for page protections and the
+   ones specified in the ELF standard. */
+#define LXFLAGS(X) ( (((X) & PF_R) ? PROT_READ : 0) | \
+		    (((X) & PF_W) ? PROT_WRITE : 0) | \
+		    (((X) & PF_X) ? PROT_EXEC : 0))
+
+
+#endif	/* LINUXELF_H */