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7 Commits

Author SHA1 Message Date
Alan Modra 4d9aa15515 * powerpc.cc (is_branch_reloc): Forward declare. 
(Target_powerpc::do_can_check_for_function_pointers): New predicate.
	(Target_powerpc::Scan::local_reloc_may_be_function_pointer): Return
	false for 64-bit, true for 32-bit non-branch relocs.
	(Target_powerpc::Scan::global_reloc_may_be_function_pointer): Likewise.
	* testsuite/Makefile.am (icf_test): Use linker map file instead of
	nm output.
	(icf_safe_test): Generate linker map file as well as nm output.
	(icf_safe_so_test): Likewise.
	* testsuite/Makefile.in: Regenerate.
	* testsuite/icf_test.sh: Parse linker map file to determine
	section folding.
	* testsuite/icf_safe_test.sh: Likewise.  Expect folding for PowerPC.
	* testsuite/icf_safe_so_test.sh: Likewise.
	(X86_32_or_ARM_specific_safe_fold): Merge into..
	(arch_specific_safe_fold): ..this.
	(X86_64_specific_safe_fold): Delete unused function.
 2013-03-12 22:46:19 +00:00
Walter Lee 5c0b3823c6 Add support for tilegx in gold. 
* configure.ac (ENABLE_GOLD): support tilegx*
	* configure: rebuild
elfcpp:
	* tilegx.h: New file.
	* elfcpp.h: add EM_TILEGX.
gold:
	* tilegx.cc: New file.
	* Makefile.am (TARGETSOURCES): Add tilegx.cc
	(ALL_TARGETOBJS): Add tilegx.$(OBJEXT)
	* configure.tgt: Add entries for tilegx*.
	* configure.ac: Likewise.
	* Makefile.in: Rebuild.
	* configure: Likewise.
	* testsuite/icf_safe_test.sh (arch_specific_safe_fold): Handle
	tilegx.
 2012-09-15 17:11:28 +00:00
Sriraman Tallam 7e12ba9e7a * testsuite/icf_safe_so_test.sh: Add #!/bin/sh to start. 
Change == to -eq.
	* testsuite/icf_string_merge_test.sh: Add #!/bin/sh to start.
	* testsuite/icf_safe_test.sh: Add #!/bin/sh to start.
	Change == to -eq.
	* testsuite/icf_sht_rel_addend_test.sh: Add #!/bin/sh to start.
	* testsuite/icf_preemptible_functions_test.sh: Add #!/bin/sh to start.
 2011-03-21 20:55:33 +00:00
Doug Kwan bca7fb637f 2010-09-17 Doug Kwan <dougkwan@google.com> 
* arm.cc (Target_arm::Relocate::relocate): Ignore symbol type and
	defintion if relocation uses GOT entries of the symbol.
	* testsuite/icf_safe_test.sh: Fix test.
	* testsuite/icf_safe_so_test.sh: Fix test.
 2010-09-17 23:51:42 +00:00
Sriraman Tallam 0897ed3bdb * i386.cc (Target_i386::can_check_for_function_pointers): New function. 
(Scan::possible_function_pointer_reloc): New function.
	(Scan::local_reloc_may_be_function_pointer): Change to call
	possible_function_pointer_reloc.
	(Scan::global_reloc_may_be_function_pointer): Ditto.
	* icf.h (Icf::check_section_for_function_pointers): Change to reject
	relocations in ".data.rel.ro._ZTV" section.
	* testsuite/icf_safe_so_test.sh: Change to pass i386.
	* testsuite/icf_safe_so_test.cc: Ditto.
	* testsuite/icf_safe_test.cc: Ditto.
	* testsuite/icf_safe_test.sh: Ditto.
 2010-03-04 01:33:22 +00:00
Sriraman Tallam 21bb3914d6 2010-02-12 Sriraman Tallam <tmsriram@google.com> 
* arm.cc (Scan::local_reloc_may_be_function_pointer): New function.
	(Scan::global_reloc_may_be_function_pointer): New function.
	* sparc.cc (Scan::local_reloc_may_be_function_pointer): New function.
	(Scan::global_reloc_may_be_function_pointer): New function.
	* powerpc.cc (Scan::local_reloc_may_be_function_pointer): New function.
	(Scan::global_reloc_may_be_function_pointer): New function.
	* i386.cc (Scan::local_reloc_may_be_function_pointer): New function.
	(Scan::global_reloc_may_be_function_pointer): New function.
	* x86_64.cc (Scan::local_reloc_may_be_function_pointer): New function.
	(Scan::global_reloc_may_be_function_pointer): New function.
	(Scan::possible_function_pointer_reloc): New function.
	(Target_x86_64::can_check_for_function_pointers): New function.
	* gc.h (gc_process_relocs): Scan relocation types to determine if
	function pointers were taken for targets that support it.
	* icf.cc (Icf::find_identical_sections): Include functions for
	folding in safe ICF whose pointer is not taken.
	* icf.h (Secn_fptr_taken_set): New typedef.
	(fptr_section_id_): New member.
	(section_has_function_pointers): New function.
	(set_section_has_function_pointers): New function.
	(check_section_for_function_pointers): New function.
	* options.h: Fix comment for safe ICF option.
	* target.h (can_check_for_function_pointers): New function.
	* testsuite/Makefile.am: Add icf_safe_so_test test case.
	Modify icf_safe_test for X86-64.
	* testsuite/Makefile.in: Regenerate.
	* testsuite/icf_safe_so_test.cc: New file.
	* testsuite/icf_safe_so_test.sh: New file.
	* testsuite/icf_safe_test.cc (kept_func_3): New function.
	(main): Change to take pointer to function kept_func_3.
	* testsuite/icf_safe_test.sh (arch_specific_safe_fold): Check if safe
	folding is done correctly for X86-64.
 2010-02-13 02:04:21 +00:00
Sriraman Tallam 032ce4e9e3 * gc.h (gc_process_relocs): Check if icf is enabled using new 
function.
	* gold.cc (queue_initial_tasks): Likewise.
	(queue_middle_tasks): Likewise.
	* object.cc (do_layout): Likewise.
	* symtab.cc (is_section_folded): Likewise.
	* main.cc (main): Likewise.
	* reloc.cc (Read_relocs::run): Likewise.
	(Sized_relobj::do_scan_relocs): Likewise.
	* icf.cc (is_function_ctor_or_dtor): New function.
	(Icf::find_identical_sections): Check if function is ctor or dtor when
	safe icf is chosen.
	* options.h (General_options::icf): Change option to be an enum.
	(Icf_status): New enum.
	(icf_enabled): New method.
	(icf_safe_folding): New method.
	(set_icf_status): New method.
	(icf_status_): New variable.
	* (options.cc) (General_options::finalize): Set icf_status_.
	* testsuite/Makefile.am: Add commands to build icf_safe_test. Modify
	icf_test and icf_keep_unique_test to use the --icf enum flag.
	* testsuite/icf_safe_test.sh: New file.
	* testsuite/icf_safe_test.cc: New file.
 2009-10-13 21:17:43 +00:00