[uClibc-cvs] uClibc/ldso/ldso ldso.c, 1.78, 1.79 readelflib1.c, 1.54, 1.55

[Erik Andersen]

Update of /var/cvs/uClibc/ldso/ldso
In directory nail:/tmp/cvs-serv12637/ldso

Modified Files:
	ldso.c readelflib1.c 
Log Message:
Eliminate separate passes for _dl_copy_fixups() and _dl_fixup(), and
do both operations in a single pass.


Index: readelflib1.c
===================================================================
RCS file: /var/cvs/uClibc/ldso/ldso/readelflib1.c,v
retrieving revision 1.54
retrieving revision 1.55
diff -u -d -r1.54 -r1.55
--- readelflib1.c	17 Dec 2003 18:34:15 -0000	1.54
+++ readelflib1.c	29 Jan 2004 10:44:49 -0000	1.55
@@ -735,47 +735,6 @@
 	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 @@
 	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 @@
 					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 @@
 	return goof;
 }
 
-

Index: ldso.c
===================================================================
RCS file: /var/cvs/uClibc/ldso/ldso/ldso.c,v
retrieving revision 1.78
retrieving revision 1.79
diff -u -d -r1.78 -r1.79
--- ldso.c	2 Jan 2004 23:34:12 -0000	1.78
+++ ldso.c	29 Jan 2004 10:44:49 -0000	1.79
@@ -145,7 +145,7 @@
 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 @@
 	 * 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