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-rw-r--r--ldso/ldso/hash.h113
1 files changed, 113 insertions, 0 deletions
diff --git a/ldso/ldso/hash.h b/ldso/ldso/hash.h
new file mode 100644
index 000000000..2eeda2d46
--- /dev/null
+++ b/ldso/ldso/hash.h
@@ -0,0 +1,113 @@
+#include "link.h"
+
+#ifndef RTLD_NEXT
+#define RTLD_NEXT ((void*)-1)
+#endif
+
+struct dyn_elf{
+ unsigned int flags;
+ struct elf_resolve * dyn;
+ struct dyn_elf * next_handle; /* Used by dlopen et al. */
+ struct dyn_elf * next;
+};
+
+struct elf_resolve{
+ /* These entries must be in this order to be compatible with the interface used
+ by gdb to obtain the list of symbols. */
+ char * loadaddr;
+ char * libname;
+ unsigned int dynamic_addr;
+ struct elf_resolve * next;
+ struct elf_resolve * prev;
+ /* Nothing after this address is used by gdb. */
+ enum {elf_lib, elf_executable,program_interpreter, loaded_file} libtype;
+ struct dyn_elf * symbol_scope;
+ unsigned short usage_count;
+ unsigned short int init_flag;
+ unsigned int nbucket;
+ unsigned int * elf_buckets;
+ /*
+ * These are only used with ELF style shared libraries
+ */
+ unsigned int nchain;
+ unsigned int * chains;
+ unsigned int dynamic_info[24];
+
+ unsigned int dynamic_size;
+ unsigned int n_phent;
+ struct elf_phdr * ppnt;
+};
+
+#if 0
+/*
+ * The DT_DEBUG entry in the .dynamic section is given the address of this structure.
+ * gdb can pick this up to obtain the correct list of loaded modules.
+ */
+
+struct r_debug{
+ int r_version;
+ struct elf_resolve * link_map;
+ unsigned long brk_fun;
+ enum {RT_CONSISTENT, RT_ADD, RT_DELETE};
+ unsigned long ldbase;
+};
+#endif
+
+#define COPY_RELOCS_DONE 1
+#define RELOCS_DONE 2
+#define JMP_RELOCS_DONE 4
+#define INIT_FUNCS_CALLED 8
+
+extern struct dyn_elf * _dl_symbol_tables;
+extern struct elf_resolve * _dl_loaded_modules;
+extern struct dyn_elf * _dl_handles;
+
+extern struct elf_resolve * _dl_check_hashed_files(char * libname);
+extern struct elf_resolve * _dl_add_elf_hash_table(char * libname,
+ char * loadaddr,
+ unsigned int * dynamic_info,
+ unsigned int dynamic_addr,
+ unsigned int dynamic_size);
+extern char * _dl_find_hash(char * name, struct dyn_elf * rpnt1,
+ unsigned int instr_addr,
+ struct elf_resolve * f_tpnt,
+ int copyrel);
+
+extern int _dl_linux_dynamic_link(void);
+
+#ifdef __mc68000__
+/* On m68k constant strings are referenced through the GOT. */
+/* XXX Requires load_addr to be defined. */
+#define SEND_STDERR(X) \
+ { const char *__s = (X); \
+ if (__s < (const char *) load_addr) __s += load_addr; \
+ _dl_write (2, __s, _dl_strlen (__s)); \
+ }
+#else
+#define SEND_STDERR(X) _dl_write(2, X, _dl_strlen(X));
+#endif
+extern int _dl_fdprintf(int, const char *, ...);
+extern char * _dl_library_path;
+extern char * _dl_not_lazy;
+extern char * _dl_strdup(const char *);
+extern inline int _dl_symbol(char * name);
+unsigned long _dl_elf_hash(const char * name);
+
+extern inline int _dl_symbol(char * name)
+{
+ if(name[0] != '_' || name[1] != 'd' || name[2] != 'l' || name[3] != '_')
+ return 0;
+ return 1;
+}
+
+#define DL_ERROR_NOFILE 1
+#define DL_ERROR_NOZERO 2
+#define DL_ERROR_NOTELF 3
+#define DL_ERROR_NOTMAGIC 4
+#define DL_ERROR_NOTDYN 5
+#define DL_ERROR_MMAP_FAILED 6
+#define DL_ERROR_NODYNAMIC 7
+#define DL_WRONG_RELOCS 8
+#define DL_BAD_HANDLE 9
+#define DL_NO_SYMBOL 10
+