mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-10-25 22:12:57 +02:00
5c64f0995b
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. llvm-svn: 237721
30 lines
552 B
C++
30 lines
552 B
C++
class DummyClass {
|
|
int a_;
|
|
public:
|
|
DummyClass(int a) : a_(a) {}
|
|
int add(int b) {
|
|
return a_ + b;
|
|
}
|
|
};
|
|
|
|
int f(int a, int b) {
|
|
DummyClass c(a);
|
|
return c.add(b);
|
|
}
|
|
|
|
int main() {
|
|
return f(2, 3);
|
|
}
|
|
|
|
// Built with Clang 3.2:
|
|
// $ mkdir -p /tmp/dbginfo
|
|
// $ cp dwarfdump-test.cc /tmp/dbginfo
|
|
// $ cd /tmp/dbginfo
|
|
// $ clang++ -g dwarfdump-test.cc -o <output>
|
|
|
|
// The result is also used as an input to .dwz tool:
|
|
// $ cp <output> output1.dwz
|
|
// $ cp <output> output2.dwz
|
|
// $ dwz -m output.dwz -r output1.dwz output2.dwz
|
|
// $ rm output2.dwz
|