From: Ian Lance Taylor <ian@airs.com>
Date: Fri, 2 Feb 1996 17:46:05 +0000 (+0000)
Subject: 	* write.c (write_relocs): Use S_IS_DEFINED and S_IS_COMMON rather
X-Git-Tag: gdb-4_18~9428
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=e24cf2b556c64426980bc2ffcbce0da05284da4e;p=platform%2Fupstream%2Fbinutils.git

	* write.c (write_relocs): Use S_IS_DEFINED and S_IS_COMMON rather
	than comparing S_GET_SEGMENT to undefined_section.
	(write_object_file): Skip symbols which were equated to an
	undefined or common symbol.
	* symbols.c (resolve_symbol_value): Use S_IS_DEFINED and
	S_IS_COMMON rather than comparing S_GET_SEGMENT to
	undefined_section.
	(S_GET_VALUE): Likewise.  Avoid recursion problems if S_IS_DEFINED
	or S_IS_COMMON call S_GET_VALUE.
	* config/obj-aout.h (S_IS_COMMON): Define if not BFD_ASSEMBLER.
	* config/obj-aout.c (obj_emit_relocations): If a reloc is equated
	to an undefined or common symbol, convert the reloc to be against
	the target symbol.
	(obj_crawl_symbol_chain): Skip symbols which were equated to an
	undefined or common symbol.
	* config/obj-bout.h (S_IS_COMMON): Define if not BFD_ASSEMBLER.
	* config/obj-bout.c (obj_emit_relocations): If a reloc is equated
	to an undefined or common symbol, convert the reloc to be against
	the target symbol.
	(obj_crawl_symbol_chain): Skip symbols which were equated to an
	undefined or common symbol.
	* config/obj-coff.c (do_relocs_for): Use S_IS_DEFINED and
	S_IS_COMMON rather than comparing S_GET_SEGMENT to
	undefined_section.
	(yank_symbols): Skip symbols which were equated to an undefined or
	common symbol.
---

diff --git a/gas/ChangeLog b/gas/ChangeLog
index 26b6990..6f20f6f 100644
--- a/gas/ChangeLog
+++ b/gas/ChangeLog
@@ -1,3 +1,32 @@
+Fri Feb  2 12:32:15 1996  Ian Lance Taylor  <ian@cygnus.com>
+
+	* write.c (write_relocs): Use S_IS_DEFINED and S_IS_COMMON rather
+	than comparing S_GET_SEGMENT to undefined_section.
+	(write_object_file): Skip symbols which were equated to an
+	undefined or common symbol.
+	* symbols.c (resolve_symbol_value): Use S_IS_DEFINED and
+	S_IS_COMMON rather than comparing S_GET_SEGMENT to
+	undefined_section.
+	(S_GET_VALUE): Likewise.  Avoid recursion problems if S_IS_DEFINED
+	or S_IS_COMMON call S_GET_VALUE.
+	* config/obj-aout.h (S_IS_COMMON): Define if not BFD_ASSEMBLER.
+	* config/obj-aout.c (obj_emit_relocations): If a reloc is equated
+	to an undefined or common symbol, convert the reloc to be against
+	the target symbol.
+	(obj_crawl_symbol_chain): Skip symbols which were equated to an
+	undefined or common symbol.
+	* config/obj-bout.h (S_IS_COMMON): Define if not BFD_ASSEMBLER.
+	* config/obj-bout.c (obj_emit_relocations): If a reloc is equated
+	to an undefined or common symbol, convert the reloc to be against
+	the target symbol.
+	(obj_crawl_symbol_chain): Skip symbols which were equated to an
+	undefined or common symbol.
+	* config/obj-coff.c (do_relocs_for): Use S_IS_DEFINED and
+	S_IS_COMMON rather than comparing S_GET_SEGMENT to
+	undefined_section.
+	(yank_symbols): Skip symbols which were equated to an undefined or
+	common symbol.
+
 Thu Feb  1 15:34:32 1996  Ian Lance Taylor  <ian@cygnus.com>
 
 	* config/obj-aout.h (S_IS_LOCAL): Check for \002 as well as \001.
diff --git a/gas/config/obj-bout.c b/gas/config/obj-bout.c
index ba7cadc..0136c17 100644
--- a/gas/config/obj-bout.c
+++ b/gas/config/obj-bout.c
@@ -96,6 +96,14 @@ obj_emit_relocations (where, fixP, segment_address_in_file)
       if (fixP->fx_done == 0
 	  || fixP->fx_r_type != NO_RELOC)
 	{
+	  symbolS *sym;
+
+	  sym = fixP->fx_addsy;
+	  while (sym->sy_value.X_op == O_symbol
+		 && (! S_IS_DEFINED (sym) || S_IS_COMMON (sym)))
+	    sym = sym->sy_value.X_add_symbol;
+	  fixP->fx_addsy = sym;
+
 	  tc_bout_fix_to_chars (*where, fixP, segment_address_in_file);
 	  *where += sizeof (struct relocation_info);
 	}			/* if there's a symbol */
@@ -246,6 +254,15 @@ obj_crawl_symbol_chain (headers)
 
       resolve_symbol_value (symbolP);
 
+      /* Skip symbols which were equated to undefined or common
+	 symbols.  */
+      if (symbolP->sy_value.X_op == O_symbol
+	  && (! S_IS_DEFINED (symbolP) || S_IS_COMMON (symbolP)))
+	{
+	  *symbolPP = symbol_next (symbolP);
+	  continue;
+	}
+
       /* OK, here is how we decide which symbols go out into the
 	 brave new symtab.  Symbols that do are:
 		
diff --git a/gas/config/obj-bout.h b/gas/config/obj-bout.h
index 81621b9..947a140 100644
--- a/gas/config/obj-bout.h
+++ b/gas/config/obj-bout.h
@@ -181,6 +181,10 @@ struct relocation_info
 
 /* True if symbol has been defined, ie is in N_{TEXT,DATA,BSS,ABS} or N_EXT */
 #define S_IS_DEFINED(s)		((S_GET_TYPE(s) != N_UNDF) || (S_GET_DESC(s) != 0))
+
+#define S_IS_COMMON(s) \
+  (S_GET_TYPE (s) == N_UNDF && S_GET_VALUE (s) != 0)
+
 #define S_IS_REGISTER(s)	((s)->sy_symbol.n_type == N_REGISTER)
 
 /* True if a debug special symbol entry */