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71ff89863f
but mark earlier ones as non-canonical (offset_to_iterator): Update search target and example (do_addr2line): Return extra lines in a vector* (format_file_lineno): Extract from do_addr2line (one_addr2line): Add vector* out-param * dwarf_reader.h (Offset_to_lineno_entry): New field recording when a lineno entry appeared last for its instruction (Dwarf_line_info): Add vector* out-param * object.cc (Relocate_info): Pass NULL for the vector* out-param * symtab.cc (Odr_violation_compare): Include the lineno in the comparison again. (linenos_from_loc): New. Combine the canonical line for an address with its other lines. (True_if_intersect): New. Helper functor to make std::set_intersection a query. (detect_odr_violations): Compare sets of lines instead of just one line for each function. This became less deterministic, but has fewer false positives. * symtab.h: Declarations. * testsuite/Makefile.am (odr_violation2.o): Compile with -O2 to mix an optimized and non-optimized object in the same binary (odr_violation2.so): Same. * testsuite/Makefile.in: Regenerate from Makefile.am. * testsuite/debug_msg.cc (main): Make OdrDerived classes. * testsuite/debug_msg.sh: Update line numbers and add assertions. * testsuite/odr_violation1.cc: Use OdrDerived, in a non-optimized context. * testsuite/odr_violation2.cc: Make sure Ordering::operator() isn't inlined, and use OdrDerived in an optimized context. * testsuite/odr_header1.h: Defines OdrDerived, where optimization will change the first-instruction-in-the-destructor's file and line number. * testsuite/odr_header2.h: Defines OdrBase.
97 lines
2.5 KiB
C++
97 lines
2.5 KiB
C++
// debug_msg.cc -- a test case for printing debug info for missing symbols.
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// Copyright 2006, 2007, 2008 Free Software Foundation, Inc.
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// Written by Ian Lance Taylor <iant@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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// This file is constructed to have undefined references. In
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// debug_msg.sh, we will try to link this file, and analyze the
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// error messages that are produced.
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extern int undef_int;
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extern float undef_float;
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extern void undef_fn1();
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extern void undef_fn2();
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int* badref1 = &undef_int;
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static float* badref2 = &undef_float;
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void (*fn_array[])() =
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{
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undef_fn1,
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undef_fn2
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};
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template<class Foo>
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int testfn(Foo x)
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{
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undef_fn1();
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undef_fn2();
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return undef_int;
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}
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class Base
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{
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virtual void virtfn() { undef_fn1(); }
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};
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class Derived : public Base
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{
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virtual void virtfn() { undef_fn2(); }
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};
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// This tests One Definition Rule (ODR) violations.
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void SortAscending(int array[], int size); // in odr_violation1.cc
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void SortDescending(int array[], int size); // in odr_violation2.cc
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// This tests One Definition Rule (ODR) non-violations.
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#include "odr_header2.h"
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OdrBase* CreateOdrDerived1(); // in odr_violation1.cc
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OdrBase* CreateOdrDerived2(); // in odr_violation2.cc
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extern "C" int OverriddenCFunction(int i); // in odr_violation*.cc
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inline int SometimesInlineFunction(int i) { // strong in odr_violation2.cc.
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return i;
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}
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int main()
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{
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testfn(5);
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testfn(4.0);
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Base b;
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Derived d;
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int kInput1[] = {1, 6, 9, 7, 3, 4, 2, 10, 5, 8};
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int kSize1 = sizeof(kInput1) / sizeof(int);
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SortAscending(kInput1, kSize1);
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int kInput2[] = {1, 6, 9, 7, 3, 4, 2, 10, 5, 8};
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int kSize2 = sizeof(kInput2) / sizeof(int);
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SortDescending(kInput2, kSize2);
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OverriddenCFunction(3);
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SometimesInlineFunction(3);
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delete CreateOdrDerived1();
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delete CreateOdrDerived2();
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return 0;
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}
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