Commit Graph

14 Commits

Author SHA1 Message Date
Alan Modra
827041555a Update year range in copyright notice of binutils files 2019-01-01 22:06:53 +10:30
Eric Botcazou
317ff0084b Speed up direct linking with DLLs on Windows (1/2).
This patch deals with the auto-import feature.  There are 2 versions
of this feature: the original one, which was piggybacked on the OS
loader with an optional help from the runtime (--enable-auto-import
--enable-runtime-pseudo-reloc-v1) and is still the one mostly
documented in the sources and manual; the enhanced one by Kai Tietz,
which is entirely piggybacked on the runtime (--enable-auto-import
--enable-runtime-pseudo-reloc-v2) and is the default for Mingw and
Cygwin nowadays.

The implementation is inefficient because of pe[p]_find_data_imports:
for every undefined symbol, the function walks the entire set of
relocations for all the input files and does a direct name comparison
for each of them.

This is easily fixable by using a hash-based map for v1 and a simple
hash table for v2.  This patch leaves v1 alone and only changes v2.
It also factors out pe[p]_find_data_imports into a common function,
removes old cruft left and right, and attempts to better separate
the implementations of v1 and v2 in the code.

ld/
	* emultempl/pe.em (U_SIZE): Delete.
	(pe_data_import_dll): Likewise.
	(make_import_fixup): Return void, take 4th parameter and pass it down
	in call to pe_create_import_fixup.
	(pe_find_data_imports): Move to...
	(gld_${EMULATION_NAME}_after_open): Run the stdcall fixup pass after
	the auto-import pass and add a guard before running the latter.
	* emultempl/pep.em (U_SIZE): Delete.
	(pep_data_import_dll): Likewise.
	(make_import_fixup): Return void, take 4th parameter and pass it down
	in call to pe_create_import_fixup.
	(pep_find_data_imports): Move to...
	(gld_${EMULATION_NAME}_after_open): Run the stdcall fixup pass after
	the auto-import pass and add a guard before running the latter.
	* pe-dll.c (runtime_pseudp_reloc_v2_init): Change type to bfd_boolean.
	(pe_walk_relocs_of_symbol): Rename into...
	(pe_walk_relocs): ...this.  Add 2 more parameters,4th parameter to the
	callback prototype and pass 4th parameter in calls to the callback.
	If the import hash table is present, invoke the callback on the reloc
	if the symbol name is in the table.
	(pe_find_data_imports): ...here.  Take 2 parameters.  Build an import
	hash table for the pseudo-relocation support version 2.  When it is
	built, walk the relocations only once at the end; when it is not, do
	not build a fixup when the symbol isn't part of an import table.
	Issue the associated warning only after a first fixup is built.
	(tmp_seq2): Delete.
	(make_singleton_name_imp): Likewise.
	(make_import_fixup_mark): Return const char * and a stable string.
	(make_import_fixup_entry): Do not deal with the pseudo-relocation
	support version 2.
	(make_runtime_pseudo_reloc): Factor out code and fix formatting.
	(pe_create_import_fixup): Add 5th parameter.  Clearly separate the
	pseudo-relocation support version 2 from the rest.  Fix formatting.
	* pe-dll.h (pe_walk_relocs_of_symbol): Delete.
	(pe_find_data_imports): Declare.
	(pe_create_import_fixup): Add 5th parameter.
	* pep-dll.c (pe_data_import_dll): Delete.
	(pe_find_data_imports): Define.
	(pe_walk_relocs_of_symbol): Delete.
	* pep-dll.h (pep_walk_relocs_of_symbol): Delete.
	(pep_find_data_imports): Declare.
	(pep_create_import_fixup): Add 5th parameter.
	* ld.texinfo (--enable-auto-import): Adjust to new implementation.
2018-04-04 12:07:50 +02:00
Alan Modra
219d1afa89 Update year range in copyright notice of binutils files 2018-01-03 17:49:56 +10:30
Alan Modra
2571583aed Update year range in copyright notice of all files. 2017-01-02 14:08:56 +10:30
Alan Modra
6f2750feaf Copyright update for binutils 2016-01-01 23:00:01 +10:30
Alan Modra
b90efa5b79 ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
Alan Modra
4b95cf5c0c Update copyright years 2014-03-05 22:16:15 +10:30
Kai Tietz
522f09cd4c 2010-04-05 Kai Tietz <kai.tietz@onevision.com>
* emultempl/pep.em (U): Macro modified.
	(U_SIZE): New helper macro.
	(GET_INIT_SYMBOL_NAME): Likewise.
	(enum options): Add OPTION_NO_LEADING_UNDERSCORE
	and OPTION_LEADING_UNDERSCORE enumerator-values.
	(gld${EMULATION_NAME}_add_options): Add --(no-)leading-underscore
	option.
	(definfo): Add new member is_c_symbol.
	(D): Add to macro underscore mode parameter.
	(init): Add definition for is_c_symbol.
	(gld_${EMULATION_NAME}_list_options): Display new options.
	(set_pep_name): Adjust underscoring dependent fixed
	symbol handling.
	(gld_${EMULATION_NAME}_set_symbols): Likewise.
	(saw_option): Likewise.
	(gld_${EMULATION_NAME}_unrecognized_file): Likewise.
	(set_entry_point): Initial initial_symbol_char dependent to
	target's default and new option flag pep_leading_underscore.
	* emultempl/pe.em (U): Macro modified.
	(U_SIZE): New helper macro.
	(GET_INIT_SYMBOL_NAME): Likewise.
	(OPTION_LEADING_UNDERSCORE): Add new option define.
	(OPTION_NO_LEADING_UNDERSCORE): Likewise.
	(gld${EMULATION_NAME}_add_options): Add --(no-)leading-underscore
	option.
	(definfo): Add new member is_c_symbol.
	(D): Add to macro underscore mode parameter.
	(init): Add definition for is_c_symbol.
	(gld_${EMULATION_NAME}_list_options): Display new options.
	(set_pep_name): Adjust underscoring dependent fixed
	symbol handling.
	(gld_${EMULATION_NAME}_set_symbols): Likewise.
	(saw_option): Likewise.
	(gld_${EMULATION_NAME}_unrecognized_file): Likewise.
	(set_entry_point): Initial initial_symbol_char dependent to
	target's default and new option flag pep_leading_underscore.
	* pe-dll.c (pe_leading_underscore): New flag variable.
	(pe_detail_list): Remove const to allow modify of
	member underscore.
	(pe_dll_id_target): Initialize pe_details' underscore variable
	dependent to target's default and flag pe_leading_underscore.
	* pe-dll.h (pe_leading_underscore): Add extern declaration of
	option flag.
	* pep-dll.c (pe_leading_underscore): Add alias define for
	pep_leading_underscore.
	* pep-dll.h (pep_leading_underscore) Add extern declaration of
	option flag.
	* ld.texinfo: Add documentation for --(no-)leading-underscore
	option.
2010-04-05 09:04:09 +00:00
Nick Clifton
2927aacaee * emultempl/pe.em (OPTION_EXCLUDE_ALL_SYMBOLS): New macro.
(gld${EMULATION_NAME}_add_options): Add new --exclude-all-symbols option
        to exclude all symbols from automatic export.
        (gld_${EMULATION_NAME}_list_options): Describe it.
        (gld${EMULATION_NAME}_handle_option): Handle it.
        * emultempl/pep.em: Likewise to all the above.
        * pe-dll.c (pe_dll_exclude_all_symbols): New variable.
        (process_def_file_and_drectve): Use it.
        * pe-dll.h (pe_dll_exclude_all_symbols): Declare.
        * pep-dll.c (pep_dll_exclude_all_symbols): Define pep_ alias.
        * pep-dll.h (pe_dll_exclude_all_symbols): Declare.
        * NEWS: Mention the new feature.
        * ld.texinfo: Document the new command line switch.
2009-10-16 15:15:39 +00:00
Dave Korn
8818386922 bfd/ChangeLog
* coff-alpha.c (alpha_ecoff_backend_data):  Initialise fields which
	control long section name handling with ECOFF_NO_LONG_SECTION_NAMES.
	* coff-mips.c (mips_ecoff_backend_data):  Likewise.
	* coff-rs6000.c (bfd_xcoff_backend_data):  Initialise fields which
	control long section name handling with XCOFF_NO_LONG_SECTION_NAMES.
	(bfd_pmac_xcoff_backend_data):  Likewise.
	* coff64-rs6000.c (bfd_xcoff_backend_data):  Likewise.
	(bfd_xcoff_aix5_backend_data):  Likewise.
	(xcoff64_write_object_contents):  Delete unused long_section_names
	local variable.
	* coff-sh.c (bfd_coff_small_swap_table):  Initialise long section
	name members using COFF_DEFAULT_LONG_SECTION_NAMES and make entire
	struct non-const.
	* coffcode.h (documentation):  Update to describe long section names.
	(COFFLONGSECTIONCATHELPER):  New helper macro.
	(BLANKOR1TOODD):  Likewise.
	(COFF_ENABLE_LONG_SECTION_NAMES):  Likewise.
	(COFF_LONG_SECTION_NAMES_SETTER):  Likewise.
	(COFF_DEFAULT_LONG_SECTION_NAMES):  Likewise.
	(bfd_coff_set_long_section_names_allowed):  New function.
	(bfd_coff_set_long_section_names_disallowed):  Likewise.
	(struct bfd_coff_backend_data):  Add new backend hook function
	pointer _bfd_coff_set_long_section_names.
	(bfd_coff_set_long_section_names):  New backend hook.
	(coff_write_object_contents):  Only generate long section names if
	bfd_coff_long_section_names() indicates they are currently enabled.
	(bfd_coff_std_swap_table):  Make non-const, and initialise long
	section name fields using COFF_DEFAULT_LONG_SECTION_NAMES.
	(ticoff0_swap_table):  Likewise to both.
	(ticoff1_swap_table):  Again, likewise to both.
	* coffgen.c (make_a_section_from_file):  Allow long section names
	as inputs even if not currently allowed for outputs.
	* ecoff.c (_bfd_ecoff_no_long_sections):  New function.
	* efi-app-ia32.c (COFF_LONG_SECTION_NAMES):  Define to 0, not blank.
	* efi-app-ia64.c (COFF_LONG_SECTION_NAMES):  Likewise.
	* efi-app-x86_64.c (COFF_LONG_SECTION_NAMES):  Likewise.
	* efi-bsdrv-ia32.c (COFF_LONG_SECTION_NAMES):  Likewise.
	* efi-bsdrv-ia64.c (COFF_LONG_SECTION_NAMES):  Likewise.
	* efi-bsdrv-x86_64.c (COFF_LONG_SECTION_NAMES):  Likewise.
	* efi-rtdrv-ia32.c (COFF_LONG_SECTION_NAMES):  Likewise.
	* efi-rtdrv-ia64.c (COFF_LONG_SECTION_NAMES):  Likewise.
	* efi-rtdrv-x86_64.c (COFF_LONG_SECTION_NAMES):  Likewise.
	* pei-arm.c (COFF_LONG_SECTION_NAMES):  Likewise.
	* pei-i386.c (COFF_LONG_SECTION_NAMES):  Likewise.
	* pei-mcore.c (COFF_LONG_SECTION_NAMES):  Likewise.
	* pei-mips.c (COFF_LONG_SECTION_NAMES):  Likewise.
	* pei-ppc.c (COFF_LONG_SECTION_NAMES):  Likewise.
	* pei-sh.c (COFF_LONG_SECTION_NAMES):  Likewise.
	* pei-x86_64.c (COFF_LONG_SECTION_NAMES):  Likewise.
	* libcoff-in.h:  Update copyright year to cause updated copyright
	year in generated libcoff.h, and fix typo.
	* libcoff.h:  Regenerated.
	* libecoff.h (ECOFF_NO_LONG_SECTION_NAMES):  New macro.
	(_bfd_ecoff_no_long_sections):  Add prototype.
	* libxcoff.h (XCOFF_NO_LONG_SECTION_NAMES):  New macro.
	* pe-mips.c (COFF_LONG_SECTION_NAMES):  Define empty if not already
	defined by an including .c file.
	* ticoff.h (ticoff0_swap_table):  Make non-const, and initialise
	long section name fields using COFF_DEFAULT_LONG_SECTION_NAMES.
	(ticoff1_swap_table):  Likewise to both.

ld/ChangeLog

	* ld.texinfo:  Update to mention long section name options.
	* NEWS:  Mention new behaviour and command-line options.
	* pe-dll.c (pe_use_coff_long_section_names):  New global variable.
	(pe_output_file_set_long_section_names):  New function.
	(pe_dll_build_sections):  Call it on output BFDs.
	(pe_exe_build_sections):  Likewise.
	(pe_dll_fill_sections):  Likewise.
	(pe_exe_fill_sections):  Likewise.
	* pe-dll.h (pe_use_coff_long_section_names):  Declare extern.
	(pe_output_file_set_long_section_names):  Add prototype.
	* pep-dll.c (pe_use_coff_long_section_names):  Define pep_ alias.
	(pe_output_file_set_long_section_names):  Likewise.
	* pep-dll.h (pep_use_coff_long_section_names):  Declare extern.
	(pep_output_file_set_long_section_names):  Add prototype.
	* pe.em (OPTION_ENABLE_LONG_SECTION_NAMES):  New getopt value macro.
	(OPTION_DISABLE_LONG_SECTION_NAMES):  Likewise.
	(gld${EMULATION_NAME}_add_options):  Add new options to xtra_long[].
	(gld_${EMULATION_NAME}_list_options):  Describe them.
	(gld${EMULATION_NAME}_handle_option):  Set or clear global
	pe_use_coff_long_section_names flag when options recognised.
	(gld_${EMULATION_NAME}_after_open):  En/disable long section names
	for main output bfd by calling pe_output_file_set_long_section_names.
	* pep.em (enum options):  Extend enum with new getopt option values.
	(gld${EMULATION_NAME}_add_options):  Add new options to xtra_long[].
	(gld_${EMULATION_NAME}_list_options):  Describe them.
	(gld${EMULATION_NAME}_handle_option):  Set or clear global
	pe_use_coff_long_section_names flag when options recognised.
	(gld_${EMULATION_NAME}_after_open):  En/disable long section names
	for main output bfd by calling pep_output_file_set_long_section_names.

ld/testsuite/ChangeLog

	* ld-pe/longsecn-1.d:  New test file.
	* ld-pe/longsecn-2.d:  Likewise.
	* ld-pe/longsecn-3.d:  Likewise.
	* ld-pe/longsecn-4.d:  Likewise.
	* ld-pe/longsecn-5.d:  Likewise.
	* ld-pe/longsecn.d:  Likewise.
	* ld-pe/longsecn.exp:  New test control script.
	* ld-pe/longsecn.s:  New test source file.
2009-02-18 18:23:08 +00:00
Kai Tietz
ce11ba6c9d 2009-01-08 Kai Tietz <kai.tietz@onevision.com>
* pe.em (OPTION_USE_NUL_PREFIXED_IMPORT_TABLES): New.
	(gld..._add_options): Add new option
	--use-nul-prefixed-import-tables.
	(gld..._handle_option): Likewise.
	* pep.em: Same as for pe.em.
	* ld.texinfo: Add new option documentation for
	--use-nul-prefixed-import-tables.
	* pe-dll.c (pe_use_nul_prefixed_import_tables): New.
	(make_head): Make prefix leading zero prefix element for
	idata$4 and idata$5 dependent to new flag.
	(make_import_fixup_entry): Remove idata4/5 prefix.
	* pe-dll.h (pe_use_nul_prefixed_import_tables): New.
	* pep-dll.c (pe_use_nul_prefixed_import_tables): New.
	* pep-dll.h (pep_use_nul_prefixed_import_tables): New.
	* NEWS: Add new option.
2009-01-08 13:28:48 +00:00
Nick Clifton
f96b4a7b0f Update sources to GPLv3 2007-07-06 14:09:45 +00:00
Alan Modra
799133e8cd * pe-dll.c: Include pe-dll.h.
* pep-dll.c (pe_bfd_is_dll): Define.
2007-01-02 07:43:13 +00:00
Nick Clifton
99ad839030 Add x86_64-mingw64 target 2006-09-20 11:35:11 +00:00