PR target/26427
PR target/33120
PR testsuite/35710
gcc:
* config/i386/darwin.h (ASM_OUTPUT_COMMON): Remove
(ASM_OUTPUT_LOCAL): Likewise.
* config/darwin-protos.h (darwin_asm_declare_object_name): New.
(darwin_output_aligned_bss): Likewise.
(darwin_asm_output_aligned_decl_local): Likewise.
(darwin_asm_output_aligned_decl_common): Likewise.
(darwin_use_anchors_for_symbol_p): Likewise.
* config/rs6000/darwin.h (ASM_OUTPUT_COMMON): Remove.
(TARGET_ASM_OUTPUT_ANCHOR): Define.
(TARGET_USE_ANCHORS_FOR_SYMBOL_P): Define.
(DARWIN_SECTION_ANCHORS): Set to 1.
* config/darwin.c (emit_aligned_common): New var.
(darwin_init_sections): Check that the Darwin private zero-size section
marker is in range.
(darwin_text_section): Check for zero-sized objects.
(darwin_mergeable_string_section): Likewise.
(darwin_mergeable_constant_section): Likewise.
(machopic_select_section): Adjust to check for zero-sized objects.
Assert that OBJC meta data are non-zero sized.
(darwin_asm_declare_object_name): New.
(darwin_asm_declare_constant_name): Adjust for zero-sized
object sections.
(BYTES_ZFILL): Define.
(darwin_emit_weak_or_comdat): New.
(darwin_emit_local_bss): New.
(darwin_emit_common): New.
(darwin_output_aligned_bss): New.
(darwin_asm_output_aligned_decl_common): New.
(darwin_asm_output_aligned_decl_local): New.
(darwin_file_end): Disable subsections_via_symbols when section
anchoring is active.
(darwin_asm_output_anchor): Re-enable.
(darwin_use_anchors_for_symbol_p): New.
(darwin_override_options): Check for versions that can emit
aligned common. Update usage of flags to current.
* config/darwin-sections.def: Update comments and flags for
non-anchor sections. zobj_const_section, zobj_data_section,
zobj_bss_section, zobj_const_data_section: New.
* config/darwin.h (ASM_DECLARE_OBJECT_NAME): Redefine.
(ASM_OUTPUT_ALIGN): Make whitespace output consistent.
(L2_MAX_OFILE_ALIGNMENT): Define.
(ASM_OUTPUT_ALIGNED_BSS): Define.
(ASM_OUTPUT_ALIGNED_DECL_LOCAL): Define.
(ASM_OUTPUT_ALIGNED_DECL_COMMON): Define.
(SECTION_NO_ANCHOR): Define.
(TARGET_ASM_OUTPUT_ANCHOR) Define with a default of NULL.
(DARWIN_SECTION_ANCHORS): Define with a default of 0.
boehm-gc:
* dyn_load.c (GC_register_dynamic_libraries/DARWIN): Add new writable
data section names.
(GC_dyld_name_for_hdr): Adjust layout.
(GC_dyld_image_add): Adjust layout, add new Darwin sections, adjust
debug to name the sections.
(GC_dyld_image_remove): Adjust layout, remove new Darwin sections,
adjust debug to name the sections.
(GC_register_dynamic_libraries): Adjust layout.
(GC_init_dyld): Likewise.
(GC_register_main_static_data): Likewise.
gcc/testsuite:
* gcc.target/powerpc/darwin-abi-12.c: Adjust for new allocators.
* gcc.dg/pr26427.c: Remove redundant warning for powerpc.
* gcc.dg/darwin-comm.c: Adjust for new allocators.
* gcc.dg/darwin-sections.c: New test.
* g++.dg/ext/instantiate2.C: Adjust for new allocators.
Co-Authored-By: Mike Stump <mrs@gcc.gnu.org>
From-SVN: r167242
46a99b06bc