mirrors/gcc
0
0
Fork 0
mirror of https://gcc.gnu.org/git/gcc.git synced 2024-11-28 22:34:03 +08:00
Code Issues Actions Packages Projects Releases Wiki Activity

Objective-C, Darwin : Use special string sections for V2 NeXT runtime.

Browse Source 
Newer versions of the runtime expect to find strings for class, method
and method types in set-aside sections rather than the general c_strings
one.

gcc/ChangeLog:

	* config/darwin-sections.def (objc2_class_names_section,
	objc2_method_names_section, objc2_method_types_section): New
	* config/darwin.c (output_objc_section_asm_op): Output new
	sections.  (darwin_objc2_section): Select new sections where
	used.

gcc/objc/ChangeLog:

	* objc-next-runtime-abi-02.c
	(next_runtime_abi_02_init_metadata_attributes): Attach metadata
	for the special string sections to class, method and method type
	string sections.
This commit is contained in:
Iain Sandoe 2020-09-26 10:15:28 +01:00
parent 900c0ca226
commit a788c4555c
3 changed files with 23 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
gcc/config/darwin-sections.def
View File

@ -198,3 +198,14 @@ DEF_SECTION (objc2_image_info_section, 0,
".section __DATA, __objc_imageinfo, regular, no_dead_strip", 1)
DEF_SECTION (objc2_constant_string_object_section, 0,
".section __DATA, __objc_stringobj, regular, no_dead_strip", 1)
/* Additions for compatibility with later runtime conventions especially for
sections containing strings. */
DEF_SECTION (objc2_class_names_section, 0,
".section __TEXT, __objc_classname, cstring_literals", 1)
DEF_SECTION (objc2_method_names_section, 0,
".section __TEXT, __objc_methname, cstring_literals", 1)
DEF_SECTION (objc2_method_types_section, 0,
".section __TEXT, __objc_methtype, cstring_literals", 1)

8
gcc/config/darwin.c
View File

@ -174,10 +174,12 @@ output_objc_section_asm_op (const void *directive)
/* ABI=2 */
static const enum darwin_section_enum tomarkv2[] =
{
objc2_method_names_section,
objc2_message_refs_section,
objc2_classdefs_section,
objc2_metadata_section,
objc2_classrefs_section,
objc2_class_names_section,
objc2_classlist_section,
objc2_categorylist_section,
objc2_selector_refs_section,
@ -1447,6 +1449,12 @@ darwin_objc2_section (tree decl ATTRIBUTE_UNUSED, tree meta, section * base)
first. */
if (!strncmp (p, "V2_BASE", 7))
return base;
else if (!strncmp (p, "V2_CNAM", 7))
return darwin_sections[objc2_class_names_section];
else if (!strncmp (p, "V2_MNAM", 7))
return darwin_sections[objc2_method_names_section];
else if (!strncmp (p, "V2_MTYP", 7))
return darwin_sections[objc2_method_types_section];
else if (!strncmp (p, "V2_STRG", 7))
return darwin_sections[cstring_section];

7
gcc/objc/objc-next-runtime-abi-02.c
View File

@ -323,9 +323,10 @@ next_runtime_abi_02_init_metadata_attributes (void)
meta_sel_refs = get_identifier ("V2_SRFS");
meta_class_name =
meta_meth_name =
meta_meth_type =
meta_class_name = get_identifier ("V2_CNAM");
meta_meth_name = get_identifier ("V2_MNAM");
meta_meth_type = get_identifier ("V2_MTYP");
meta_prop_name_attr = get_identifier ("V2_STRG");
meta_mref = get_identifier ("V2_MREF");