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PATCH: Enable dead-code stripping for __OBJC sections on Darwin
- From: Ziemowit Laski <zlaski at apple dot com>
- To: "gcc-patches at gcc dot gnu dot org Patches" <gcc-patches at gcc dot gnu dot org>
- Cc: Dale Johannesen <dalej at apple dot com>
- Date: Fri, 13 Aug 2004 12:53:36 -0700
- Subject: PATCH: Enable dead-code stripping for __OBJC sections on Darwin
Now that the mainline compiler depends on a dead-code stripping aware
Darwin assembler and linker,
I'll bring over the no-dead-code stripping markings for ObjC-related
sections.
OK?
--Zem
[gcc/ChangeLog]
2004-08-13 Ziemowit Laski <zlaski@apple.com>
* config/darwin.h (EXTRA_SECTION_FUNCTIONS): Mark the
__sel_fixup,
__cstring_object and __image_info sections with the
no_dead_strip
attribute.
Index: gcc/config/darwin.h
===================================================================
RCS file: /cvs/gcc/gcc/gcc/config/darwin.h,v
retrieving revision 1.89
diff -u -3 -p -r1.89 darwin.h
--- gcc/config/darwin.h 12 Aug 2004 13:57:01 -0000 1.89
+++ gcc/config/darwin.h 13 Aug 2004 19:46:49 -0000
@@ -659,7 +659,7 @@ SECTION_FUNCTION (objc_selector_refs_sec
".objc_message_refs", 1) \
SECTION_FUNCTION (objc_selector_fixup_section, \
in_objc_selector_fixup, \
- ".section __OBJC, __sel_fixup", 1) \
+ ".section __OBJC, __sel_fixup, regular,
no_dead_strip", 1) \
SECTION_FUNCTION (objc_symbols_section, \
in_objc_symbols, \
".objc_symbols", 1) \
@@ -674,11 +674,11 @@ SECTION_FUNCTION (objc_string_object_sec
".objc_string_object", 1) \
SECTION_FUNCTION (objc_constant_string_object_section, \
in_objc_constant_string_object, \
- ".section __OBJC, __cstring_object", 1) \
+ ".section __OBJC, __cstring_object, regular,
no_dead_strip", 1) \
/* Fix-and-Continue image marker. */ \
SECTION_FUNCTION (objc_image_info_section, \
in_objc_image_info, \
- ".section __OBJC, __image_info", 1) \
+ ".section __OBJC, __image_info, regular,
no_dead_strip", 1) \
SECTION_FUNCTION (objc_class_names_section, \
in_objc_class_names, \
".objc_class_names", 1) \
--------------------------------------------------------------
Ziemowit Laski 1 Infinite Loop, MS 301-2K
Mac OS X Compiler Group Cupertino, CA USA 95014-2083
Apple Computer, Inc. +1.408.974.6229 Fax .5477