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https://github.com/c64scene-ar/llvm-6502.git
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4ca606f22f
This change implements basic support for DWARF alternate sections proposal: http://www.dwarfstd.org/ShowIssue.php?issue=120604.1&type=open LLVM tools now understand new forms: DW_FORM_GNU_ref_alt and DW_FORM_GNU_strp_alt, which are used as references to .debug_info and .debug_str sections respectively, stored in a separate file, and possibly shared between different executables / shared objects. llvm-dwarfdump and llvm-symbolizer don't yet know how to access this alternate debug file (usually pointed by .gnu_debugaltlink section), but they can at lease properly parse and dump regular files, which refer to it. This change should fix crashes of llvm-dwarfdump and llvm-symbolizer on files produced by running "dwz" tool. Such files are already installed on some modern Linux distributions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237721 91177308-0d34-0410-b5e6-96231b3b80d8
30 lines
552 B
C++
30 lines
552 B
C++
class DummyClass {
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int a_;
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public:
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DummyClass(int a) : a_(a) {}
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int add(int b) {
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return a_ + b;
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}
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};
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int f(int a, int b) {
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DummyClass c(a);
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return c.add(b);
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}
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int main() {
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return f(2, 3);
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}
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// Built with Clang 3.2:
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// $ mkdir -p /tmp/dbginfo
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// $ cp dwarfdump-test.cc /tmp/dbginfo
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// $ cd /tmp/dbginfo
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// $ clang++ -g dwarfdump-test.cc -o <output>
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// The result is also used as an input to .dwz tool:
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// $ cp <output> output1.dwz
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// $ cp <output> output2.dwz
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// $ dwz -m output.dwz -r output1.dwz output2.dwz
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// $ rm output2.dwz
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