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* 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.
66 lines
2.1 KiB
Bash
Executable File
66 lines
2.1 KiB
Bash
Executable File
# icf_safe_test.sh -- test --icf=safe
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# Copyright 2009 Free Software Foundation, Inc.
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# Written by Sriraman Tallam <tmsriram@google.com>.
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# This file is part of gold.
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
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# MA 02110-1301, USA.
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# The goal of this program is to verify if --icf=safe works as expected.
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# File icf_safe_test.cc is in this test. This program checks if only
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# ctors and dtors are folded, except for x86-64, which uses relocation
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# types to detect if function pointers are taken.
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check_nofold()
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{
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func_addr_1=`grep $2 $1 | awk '{print $1}'`
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func_addr_2=`grep $3 $1 | awk '{print $1}'`
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if [ $func_addr_1 = $func_addr_2 ]
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then
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echo "Safe Identical Code Folding folded" $2 "and" $3
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exit 1
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fi
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}
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check_fold()
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{
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func_addr_1=`grep $2 $1 | awk '{print $1}'`
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func_addr_2=`grep $3 $1 | awk '{print $1}'`
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if [ $func_addr_1 != $func_addr_2 ]
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then
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echo "Safe Identical Code Folding did not fold " $2 "and" $3
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exit 1
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fi
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}
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arch_specific_safe_fold()
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{
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grep_x86_64=`grep -q "Advanced Micro Devices X86-64" $2`
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if [ $? == 0 ];
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then
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check_fold $1 $3 $4
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else
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check_nofold $1 $3 $4
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fi
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}
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arch_specific_safe_fold icf_safe_test_1.stdout icf_safe_test_2.stdout \
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"kept_func_1" "kept_func_2"
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check_fold icf_safe_test_1.stdout "_ZN1AD1Ev" "_ZN1AC1Ev"
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check_nofold icf_safe_test_1.stdout "kept_func_3" "kept_func_1"
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check_nofold icf_safe_test_1.stdout "kept_func_3" "kept_func_2"
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