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2 commits

Author SHA1 Message Date
H.J. Lu
320fdefef1 ld: Add a before_plugin_all_symbols_read hook
Add a before_plugin_all_symbols_read hook to load symbol references from
DT_NEEDED entries, included from --copy-dt-needed-entries, before reading
plugin symbols to properly resolve plugin symbol references.

bfd/

	PR ld/28849
	* elf-bfd.h (elf_link_hash_table): Add handling_dt_needed.
	* elflink.c (_bfd_elf_merge_symbol): Don't set non_ir_ref_dynamic
	before plugin 'all symbols read' hook is called.

ld/

	PR ld/28849
	* ldelf.c (ldelf_handle_dt_needed): New function.
	(ldelf_before_plugin_all_symbols_read): Likewise.
	(ldelf_after_open): Call ldelf_handle_dt_needed.
	* ldelf.h (ldelf_before_plugin_all_symbols_read): New.
	* ldemul.c (ldemul_before_plugin_all_symbols_read): Likewise.
	* ldemul.h (ldemul_before_plugin_all_symbols_read): Likewise.
	(ld_emulation_xfer_struct): Add before_plugin_all_symbols_read.
	* ldlang.c (lang_process): Call
	ldemul_before_plugin_all_symbols_read before calling
	plugin_call_all_symbols_read.
	* emultempl/elf.em
	(gld${EMULATION_NAME}_before_plugin_all_symbols_read): New.
	(LDEMUL_BEFORE_PLUGIN_ALL_SYMBOLS_READ): New.
	* emultempl/emulation.em (ld_${EMULATION_NAME}_emulation):
	Initialize the before_plugin_all_symbols_read field.
	* testsuite/ld-plugin/lto.exp: Run PR ld/28849 tests.
	* testsuite/ld-plugin/pr28849.d: New file.
	* testsuite/ld-plugin/pr28849a.c: Likewise.
	* testsuite/ld-plugin/pr28849b.c: Likewise.
2022-03-09 18:23:43 -08:00
H.J. Lu
a92613915e ld: Add emultempl/emulation.em
Add emultempl/emulation.em to define ld_${EMULATION_NAME}_emulation so
that new emulation hooks can be added easily.

	* emultempl/aix.em (LDEMUL_AFTER_OPEN): New.
	(LDEMUL_SET_OUTPUT_ARCH): Likewise.
	(LDEMUL_CHOOSE_TARGET): Likewise.
	(LDEMUL_BEFORE_ALLOCATION): Likewise.
	(LDEMUL_CREATE_OUTPUT_SECTION_STATEMENTS): Likewise.
	(LDEMUL_OPEN_DYNAMIC_ARCHIVE): Likewise.
	(LDEMUL_PARSE_ARGS): Likewise.
	(LDEMUL_ADD_OPTIONS): Likewise.
	(LDEMUL_HANDLE_OPTION): Likewise.
	(LDEMUL_UNRECOGNIZED_FILE): Likewise.
	(LDEMUL_PRINT_SYMBOL): Likewise.
	(ld_${EMULATION_NAME}_emulation): Removed.
	Source ${srcdir}/emultempl/emulation.em.
	* emultempl/beos.em (gld_${EMULATION_NAME}_before_parse):
	Renamed to ...
	(gld${EMULATION_NAME}_before_parse): This.
	(gld_${EMULATION_NAME}_set_symbols): Renamed to ...
	(gld${EMULATION_NAME}_set_symbols): This.
	(gld_${EMULATION_NAME}_after_open): Renamed to ...
	(gld${EMULATION_NAME}_after_open): This.
	(gld_${EMULATION_NAME}_before_allocation): Renamed to ...
	(gld${EMULATION_NAME}_before_allocation): This.
	(gld_${EMULATION_NAME}_get_script): Renamed to ...
	(gld${EMULATION_NAME}_get_script): This.
	(LDEMUL_AFTER_OPEN): New.
	(LDEMUL_BEFORE_ALLOCATION): Likewise.
	(LDEMUL_PLACE_ORPHAN): Likewise.
	(LDEMUL_SET_SYMBOLS): Likewise.
	(LDEMUL_ADD_OPTIONS): Likewise.
	(LDEMUL_HANDLE_OPTION): Likewise.
	(ld_${EMULATION_NAME}_emulation): Removed.
	Source ${srcdir}/emultempl/emulation.em.
	* emultempl/elf.em (LDEMUL_AFTER_PARSE): New.
	(LDEMUL_AFTER_OPEN): Likewise.
	(LDEMUL_BEFORE_PLACE_ORPHANS): Likewise.
	(LDEMUL_AFTER_ALLOCATION): Likewise.
	(LDEMUL_SET_OUTPUT_ARCH): Likewise.
	(LDEMUL_BEFORE_ALLOCATION): Likewise.
	(LDEMUL_OPEN_DYNAMIC_ARCHIVE): Likewise.
	(LDEMUL_PLACE_ORPHAN): Likewise.
	(LDEMUL_ADD_OPTIONS): Likewise.
	(LDEMUL_HANDLE_OPTION): Likewise.
	(LDEMUL_LIST_OPTIONS): Likewise.
	(LDEMUL_UNRECOGNIZED_FILE): Likewise.
	(ld_${EMULATION_NAME}_emulation): Removed.
	Source ${srcdir}/emultempl/emulation.em.
	* emultempl/emulation.em: New file.
	* emultempl/generic.em (ld_${EMULATION_NAME}_emulation): Removed.
	Source ${srcdir}/emultempl/emulation.em.
	* emultempl/msp430.em (LDEMUL_AFTER_OPEN): New.
	(LDEMUL_AFTER_ALLOCATION): Likewise.
	(LDEMUL_PLACE_ORPHAN): Likewise.
	(LDEMUL_FINISH): Likewise.
	(LDEMUL_ADD_OPTIONS): Likewise.
	(LDEMUL_HANDLE_OPTION): Likewise.
	(LDEMUL_LIST_OPTIONS): Likewise.
	(ld_${EMULATION_NAME}_emulation): Removed.
	Source ${srcdir}/emultempl/emulation.em.
	* emultempl/pe.em (gld_${EMULATION_NAME}_before_parse): Renamed
	to ...
	(gld${EMULATION_NAME}_before_parse): This.
	(gld_${EMULATION_NAME}_list_options): Renamed to ...
	(gld${EMULATION_NAME}_list_options): This.
	(gld_${EMULATION_NAME}_set_symbols): Renamed to ...
	(gld${EMULATION_NAME}_set_symbols): This.
	(gld_${EMULATION_NAME}_after_parse): Renamed to ...
	(gld${EMULATION_NAME}_after_parse): This.
	(gld_${EMULATION_NAME}_after_open): Renamed to ...
	(gld${EMULATION_NAME}_after_open): This.
	(gld_${EMULATION_NAME}_before_allocation): Renamed to ...
	(gld${EMULATION_NAME}_before_allocation): This.
	(gld_${EMULATION_NAME}_unrecognized_file): Renamed to ...
	(gld${EMULATION_NAME}_unrecognized_file): This.
	(gld_${EMULATION_NAME}_recognized_file): Renamed to ...
	(gld${EMULATION_NAME}_recognized_file): This.
	(gld_${EMULATION_NAME}_finish): Renamed to ...
	(gld${EMULATION_NAME}_finish): This.
	(gld_${EMULATION_NAME}_place_orphan): Renamed to ...
	(gld${EMULATION_NAME}_place_orphan): This.
	(gld_${EMULATION_NAME}_open_dynamic_archive): Renamed to ...
	(gld${EMULATION_NAME}_open_dynamic_archive): This.
	(gld_${EMULATION_NAME}_find_potential_libraries): Renamed to ...
	(gld${EMULATION_NAME}_find_potential_libraries): This.
	(gld_${EMULATION_NAME}_get_script): Renamed to ...
	(gld${EMULATION_NAME}_get_script): This.
	(LDEMUL_AFTER_PARSE): New.
	(LDEMUL_AFTER_OPEN): Likewise.
	(LDEMUL_BEFORE_ALLOCATION): Likewise.
	(LDEMUL_FINISH=): Likewise.
	(LDEMUL_OPEN_DYNAMIC_ARCHIVE): Likewise.
	(LDEMUL_PLACE_ORPHAN): Likewise.
	(LDEMUL_SET_SYMBOLS): Likewise.
	(LDEMUL_ADD_OPTIONS): Likewise.
	(LDEMUL_HANDLE_OPTION): Likewise.
	(LDEMUL_UNRECOGNIZED_FILE): Likewise.
	(LDEMUL_LIST_OPTIONS): Likewise.
	(LDEMUL_RECOGNIZED_FILE): Likewise.
	(LDEMUL_FIND_POTENTIAL_LIBRARIES): Likewise.
	(ld_${EMULATION_NAME}_emulation): Removed.
	Source ${srcdir}/emultempl/emulation.em.
	* emultempl/pep.em (gld_${EMULATION_NAME}_before_parse): Renamed
	to ...
	(gld${EMULATION_NAME}_before_parse): This.
	(gld_${EMULATION_NAME}_list_options): Renamed to ...
	(gld${EMULATION_NAME}_list_options): This.
	(gld_${EMULATION_NAME}_set_symbols): Renamed to ...
	(gld${EMULATION_NAME}_set_symbols): This.
	(gld_${EMULATION_NAME}_after_parse): Renamed to ...
	(gld${EMULATION_NAME}_after_parse): This.
	(gld_${EMULATION_NAME}_after_open): Renamed to ...
	(gld${EMULATION_NAME}_after_open): This.
	(gld_${EMULATION_NAME}_before_allocation): Renamed to ...
	(gld${EMULATION_NAME}_before_allocation): This.
	(gld_${EMULATION_NAME}_unrecognized_file): Renamed to ...
	(gld${EMULATION_NAME}_unrecognized_file): This.
	(gld_${EMULATION_NAME}_recognized_file): Renamed to ...
	(gld${EMULATION_NAME}_recognized_file): This.
	(gld_${EMULATION_NAME}_finish): Renamed to ...
	(gld${EMULATION_NAME}_finish): This.
	(gld_${EMULATION_NAME}_place_orphan): Renamed to ...
	(gld${EMULATION_NAME}_place_orphan): This.
	(gld_${EMULATION_NAME}_open_dynamic_archive): Renamed to ...
	(gld${EMULATION_NAME}_open_dynamic_archive): This.
	(gld_${EMULATION_NAME}_find_potential_libraries): Renamed to ...
	(gld${EMULATION_NAME}_find_potential_libraries): This.
	(gld_${EMULATION_NAME}_get_script): Renamed to ...
	(gld${EMULATION_NAME}_get_script): This.
	(LDEMUL_AFTER_PARSE): New.
	(LDEMUL_AFTER_OPEN): Likewise.
	(LDEMUL_BEFORE_ALLOCATION): Likewise.
	(LDEMUL_FINISH=): Likewise.
	(LDEMUL_OPEN_DYNAMIC_ARCHIVE): Likewise.
	(LDEMUL_PLACE_ORPHAN): Likewise.
	(LDEMUL_SET_SYMBOLS): Likewise.
	(LDEMUL_ADD_OPTIONS): Likewise.
	(LDEMUL_HANDLE_OPTION): Likewise.
	(LDEMUL_UNRECOGNIZED_FILE): Likewise.
	(LDEMUL_LIST_OPTIONS): Likewise.
	(LDEMUL_RECOGNIZED_FILE): Likewise.
	(LDEMUL_FIND_POTENTIAL_LIBRARIES): Likewise.
	(ld_${EMULATION_NAME}_emulation): Removed.
	Source ${srcdir}/emultempl/emulation.em.
	* emultempl/ticoff.em (gld_${EMULATION_NAME}_list_options):
	Renamed to ...
	(gld${EMULATION_NAME}_list_options): This.
	(gld_${EMULATION_NAME}_before_parse): Renamed to ...
	(gld_${EMULATION_NAME}_get_script): Renamed to ...
	(gld${EMULATION_NAME}_get_script): This.
	(LDEMUL_ADD_OPTIONS): New.
	(LDEMUL_HANDLE_OPTION): Likewise.
	(LDEMUL_LIST_OPTIONS): Likewise.
	(ld_${EMULATION_NAME}_emulation): Removed.
	Source ${srcdir}/emultempl/emulation.em.
	* emultempl/vanilla.em (LDEMUL_BEFORE_PARSE): New.
	(LDEMUL_SET_OUTPUT_ARCH): Likewise.
	(LDEMUL_GET_SCRIPT): Likewise.
	(EMULATION_NAME): Likewise.
	(OUTPUT_FORMAT): Likewise.
	(ld_vanilla_emulation): Removed.
	Source ${srcdir}/emultempl/emulation.em.
2022-02-06 06:25:41 -08:00