Eliminate separate passes for _dl_copy_fixups() and _dl_fixup(), and

do both operations in a single pass.

ldso/include/dl-elf.h

@@ -58,7 +58,6 @@ static inline void _dl_unmap_cache(void) { }
 
 
 /* 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,

ldso/include/ld_elf.h

@@ -58,7 +58,6 @@ static inline void _dl_unmap_cache(void) { }
 
 
 /* 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,

ldso/ldso/dl-elf.c

@@ -735,47 +735,6 @@ struct elf_resolve *_dl_load_elf_shared_library(int secure,
 	return tpnt;
 }
 
-/* Ugly, ugly.  Some versions of the SVr4 linker fail to generate COPY
-   relocations for global variables that are present both in the image and
-   the shared library.  Go through and do it manually.  If the images
-   are guaranteed to be generated by a trustworthy linker, then this
-   step can be skipped. */
-
-int _dl_copy_fixups(struct dyn_elf *rpnt)
-{
-	int goof = 0;
-	struct elf_resolve *tpnt;
-
-	if (rpnt->next)
-		goof += _dl_copy_fixups(rpnt->next);
-	else
-		return 0;
-
-	tpnt = rpnt->dyn;
-
-	if (tpnt->init_flag & COPY_RELOCS_DONE)
-		return goof;
-	tpnt->init_flag |= COPY_RELOCS_DONE;
-
-#if defined (__SUPPORT_LD_DEBUG__)
-	if(_dl_debug) _dl_dprintf(_dl_debug_file,"\nrelocation copy fixups: %s", tpnt->libname);	
-#endif    
-
-#ifdef ELF_USES_RELOCA
-	goof += _dl_parse_copy_information(rpnt, 
-		tpnt->dynamic_info[DT_RELA], tpnt->dynamic_info[DT_RELASZ], 0);
-
-#else
-	goof += _dl_parse_copy_information(rpnt, tpnt->dynamic_info[DT_REL], 
-		tpnt->dynamic_info[DT_RELSZ], 0);
-
-#endif
-#if defined (__SUPPORT_LD_DEBUG__)
-	if(_dl_debug) _dl_dprintf(_dl_debug_file,"\nrelocation copy fixups: %s; finished\n\n", tpnt->libname);	
-#endif    
-	return goof;
-}
-
 /* Minimal printf which handles only %s, %d, and %x */
 void _dl_dprintf(int fd, const char *fmt, ...)
 {
@@ -905,12 +864,15 @@ void *_dl_malloc(int size)
 	return retval;
 }
 
-int _dl_fixup(struct elf_resolve *tpnt, int flag)
+int _dl_fixup(struct dyn_elf *rpnt, int flag)
 {
 	int goof = 0;
+	struct elf_resolve *tpnt;
+
+	if (rpnt->next)
+		goof += _dl_fixup(rpnt->next, flag);
+	tpnt = rpnt->dyn;
 
-	if (tpnt->next)
-		goof += _dl_fixup(tpnt->next, flag);
 #if defined (__SUPPORT_LD_DEBUG__)
 	if(_dl_debug) _dl_dprintf(_dl_debug_file,"\nrelocation processing: %s", tpnt->libname);	
 #endif    
@@ -961,6 +923,19 @@ int _dl_fixup(struct elf_resolve *tpnt, int flag)
 					tpnt->dynamic_info[DT_PLTRELSZ], 0);
 		}
 	}
+	if (tpnt->init_flag & COPY_RELOCS_DONE)
+		return goof;
+	tpnt->init_flag |= COPY_RELOCS_DONE;
+#ifdef ELF_USES_RELOCA
+	goof += _dl_parse_copy_information(rpnt, 
+		tpnt->dynamic_info[DT_RELA], tpnt->dynamic_info[DT_RELASZ], 0);
+
+#else
+	goof += _dl_parse_copy_information(rpnt, tpnt->dynamic_info[DT_REL], 
+		tpnt->dynamic_info[DT_RELSZ], 0);
+
+#endif
+
 #if defined (__SUPPORT_LD_DEBUG__)
 	if(_dl_debug) {
 		_dl_dprintf(_dl_debug_file,"\nrelocation processing: %s", tpnt->libname);     
@@ -970,4 +945,3 @@ int _dl_fixup(struct elf_resolve *tpnt, int flag)
 	return goof;
 }
 
-

ldso/ldso/ldso.c

@@ -145,7 +145,7 @@ static int (*_dl_elf_main) (int, char **, char **);
 struct r_debug *_dl_debug_addr = NULL;
 unsigned long *_dl_brkp;
 unsigned long *_dl_envp;
-int _dl_fixup(struct elf_resolve *tpnt, int lazy);
+int _dl_fixup(struct dyn_elf *rpnt, int flag);
 void _dl_debug_state(void);
 char *_dl_get_last_path_component(char *path);
 static void _dl_get_ready_to_run(struct elf_resolve *tpnt, struct elf_resolve *app_tpnt, 
@@ -1185,18 +1185,9 @@ static void _dl_get_ready_to_run(struct elf_resolve *tpnt, struct elf_resolve *a
 	 * Now we go through and look for REL and RELA records that indicate fixups
 	 * to the GOT tables.  We need to do this in reverse order so that COPY
 	 * directives work correctly */
-	goof = _dl_loaded_modules ? _dl_fixup(_dl_loaded_modules, _dl_be_lazy) : 0;
-
-
-	/* Some flavors of SVr4 do not generate the R_*_COPY directive,
-	   and we have to manually search for entries that require fixups. 
-	   Solaris gets this one right, from what I understand.  */
-
-#ifdef __SUPPORT_LD_DEBUG_EARLY__
-	_dl_dprintf(_dl_debug_file, "Beginning copy fixups\n");
-#endif
 	if (_dl_symbol_tables)
-		goof += _dl_copy_fixups(_dl_symbol_tables);
+		goof += _dl_fixup(_dl_symbol_tables, _dl_be_lazy);
+
 
 	/* OK, at this point things are pretty much ready to run.  Now we
 	   need to touch up a few items that are required, and then

ldso/ldso/readelflib1.c

@@ -735,47 +735,6 @@ struct elf_resolve *_dl_load_elf_shared_library(int secure,
 	return tpnt;
 }
 
-/* Ugly, ugly.  Some versions of the SVr4 linker fail to generate COPY
-   relocations for global variables that are present both in the image and
-   the shared library.  Go through and do it manually.  If the images
-   are guaranteed to be generated by a trustworthy linker, then this
-   step can be skipped. */
-
-int _dl_copy_fixups(struct dyn_elf *rpnt)
-{
-	int goof = 0;
-	struct elf_resolve *tpnt;
-
-	if (rpnt->next)
-		goof += _dl_copy_fixups(rpnt->next);
-	else
-		return 0;
-
-	tpnt = rpnt->dyn;
-
-	if (tpnt->init_flag & COPY_RELOCS_DONE)
-		return goof;
-	tpnt->init_flag |= COPY_RELOCS_DONE;
-
-#if defined (__SUPPORT_LD_DEBUG__)
-	if(_dl_debug) _dl_dprintf(_dl_debug_file,"\nrelocation copy fixups: %s", tpnt->libname);	
-#endif    
-
-#ifdef ELF_USES_RELOCA
-	goof += _dl_parse_copy_information(rpnt, 
-		tpnt->dynamic_info[DT_RELA], tpnt->dynamic_info[DT_RELASZ], 0);
-
-#else
-	goof += _dl_parse_copy_information(rpnt, tpnt->dynamic_info[DT_REL], 
-		tpnt->dynamic_info[DT_RELSZ], 0);
-
-#endif
-#if defined (__SUPPORT_LD_DEBUG__)
-	if(_dl_debug) _dl_dprintf(_dl_debug_file,"\nrelocation copy fixups: %s; finished\n\n", tpnt->libname);	
-#endif    
-	return goof;
-}
-
 /* Minimal printf which handles only %s, %d, and %x */
 void _dl_dprintf(int fd, const char *fmt, ...)
 {
@@ -905,12 +864,15 @@ void *_dl_malloc(int size)
 	return retval;
 }
 
-int _dl_fixup(struct elf_resolve *tpnt, int flag)
+int _dl_fixup(struct dyn_elf *rpnt, int flag)
 {
 	int goof = 0;
+	struct elf_resolve *tpnt;
+
+	if (rpnt->next)
+		goof += _dl_fixup(rpnt->next, flag);
+	tpnt = rpnt->dyn;
 
-	if (tpnt->next)
-		goof += _dl_fixup(tpnt->next, flag);
 #if defined (__SUPPORT_LD_DEBUG__)
 	if(_dl_debug) _dl_dprintf(_dl_debug_file,"\nrelocation processing: %s", tpnt->libname);	
 #endif    
@@ -961,6 +923,19 @@ int _dl_fixup(struct elf_resolve *tpnt, int flag)
 					tpnt->dynamic_info[DT_PLTRELSZ], 0);
 		}
 	}
+	if (tpnt->init_flag & COPY_RELOCS_DONE)
+		return goof;
+	tpnt->init_flag |= COPY_RELOCS_DONE;
+#ifdef ELF_USES_RELOCA
+	goof += _dl_parse_copy_information(rpnt, 
+		tpnt->dynamic_info[DT_RELA], tpnt->dynamic_info[DT_RELASZ], 0);
+
+#else
+	goof += _dl_parse_copy_information(rpnt, tpnt->dynamic_info[DT_REL], 
+		tpnt->dynamic_info[DT_RELSZ], 0);
+
+#endif
+
 #if defined (__SUPPORT_LD_DEBUG__)
 	if(_dl_debug) {
 		_dl_dprintf(_dl_debug_file,"\nrelocation processing: %s", tpnt->libname);     
@@ -970,4 +945,3 @@ int _dl_fixup(struct elf_resolve *tpnt, int flag)
 	return goof;
 }
 
-

ldso/libdl/dlib.c

@@ -36,9 +36,7 @@ extern struct elf_resolve * _dl_load_shared_library(int, struct dyn_elf **, stru
 	__attribute__ ((__weak__, __alias__ ("foobar")));
 extern struct elf_resolve * _dl_check_if_named_library_is_loaded(const char *full_libname)
 	__attribute__ ((__weak__, __alias__ ("foobar")));
-extern int _dl_fixup(struct elf_resolve *tpnt, int lazy)
-	 __attribute__ ((__weak__, __alias__ ("foobar")));
-extern int _dl_copy_fixups(struct dyn_elf * tpnt)
+extern int _dl_fixup(struct dyn_elf *rpnt, int lazy)
 	 __attribute__ ((__weak__, __alias__ ("foobar")));
 #ifdef __mips__
 extern void _dl_perform_mips_global_got_relocations(struct elf_resolve *tpnt)
@@ -87,7 +85,7 @@ static char *_dl_malloc_addr, *_dl_mmap_zero;
 #define _dl_trace_loaded_objects    0
 #include "../ldso/readelflib1.c"
 void *(*_dl_malloc_function) (size_t size);
-int _dl_fixup(struct elf_resolve *tpnt, int lazy);
+int _dl_fixup(struct dyn_elf *rpnt, int lazy);
 #endif
 
 static int do_dlclose(void *, int need_fini);
@@ -271,21 +269,11 @@ void *_dlopen(const char *libname, int flag)
 	 * Now we go through and look for REL and RELA records that indicate fixups
 	 * to the GOT tables.  We need to do this in reverse order so that COPY
 	 * directives work correctly */
-	if (_dl_fixup(dyn_chain->dyn, dyn_chain->flags))
+	if (_dl_fixup(dyn_chain, dyn_chain->flags))
 		goto oops;
 
-#ifdef __SUPPORT_LD_DEBUG__
-	if(_dl_debug) 
-	_dl_dprintf(_dl_debug_file, "Beginning dlopen copy fixups\n");
-#endif
-	if (_dl_symbol_tables) {
-		if (_dl_copy_fixups(dyn_chain))
-			goto oops;
-	}
-
-
 	/* TODO:  Should we set the protections of all pages back to R/O now ? */
-	
+
 
 	/* Notify the debugger we have added some objects. */
 	if (_dl_debug_addr) {

ldso/libdl/libdl.c

@@ -36,9 +36,7 @@ extern struct elf_resolve * _dl_load_shared_library(int, struct dyn_elf **, stru
 	__attribute__ ((__weak__, __alias__ ("foobar")));
 extern struct elf_resolve * _dl_check_if_named_library_is_loaded(const char *full_libname)
 	__attribute__ ((__weak__, __alias__ ("foobar")));
-extern int _dl_fixup(struct elf_resolve *tpnt, int lazy)
-	 __attribute__ ((__weak__, __alias__ ("foobar")));
-extern int _dl_copy_fixups(struct dyn_elf * tpnt)
+extern int _dl_fixup(struct dyn_elf *rpnt, int lazy)
 	 __attribute__ ((__weak__, __alias__ ("foobar")));
 #ifdef __mips__
 extern void _dl_perform_mips_global_got_relocations(struct elf_resolve *tpnt)
@@ -87,7 +85,7 @@ static char *_dl_malloc_addr, *_dl_mmap_zero;
 #define _dl_trace_loaded_objects    0
 #include "../ldso/readelflib1.c"
 void *(*_dl_malloc_function) (size_t size);
-int _dl_fixup(struct elf_resolve *tpnt, int lazy);
+int _dl_fixup(struct dyn_elf *rpnt, int lazy);
 #endif
 
 static int do_dlclose(void *, int need_fini);
@@ -271,21 +269,11 @@ void *_dlopen(const char *libname, int flag)
 	 * Now we go through and look for REL and RELA records that indicate fixups
 	 * to the GOT tables.  We need to do this in reverse order so that COPY
 	 * directives work correctly */
-	if (_dl_fixup(dyn_chain->dyn, dyn_chain->flags))
+	if (_dl_fixup(dyn_chain, dyn_chain->flags))
 		goto oops;
 
-#ifdef __SUPPORT_LD_DEBUG__
-	if(_dl_debug) 
-	_dl_dprintf(_dl_debug_file, "Beginning dlopen copy fixups\n");
-#endif
-	if (_dl_symbol_tables) {
-		if (_dl_copy_fixups(dyn_chain))
-			goto oops;
-	}
-
-
 	/* TODO:  Should we set the protections of all pages back to R/O now ? */
-	
+
 
 	/* Notify the debugger we have added some objects. */
 	if (_dl_debug_addr) {