https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78040
Bug ID: 78040
Summary: Missed mangled names of class methods in the
translation unit dump
Product: gcc
Version: 6.2.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: andrei.moscow at mail dot ru
Target Milestone: ---
The mangled names of class methods are missed in the translation unit (TU) dump
for a C++ header when using latest GCC 6.2.
All is OK (mangled names are present in the TU dump) when using GCC 4.9.4 or
GCC 5.4.
This feature is very important for maintaining backward binary compatibility of
Linux libraries. Please help.
How to reproduce:
1. Take a header file:
class TestClass
{
public:
int testMethod(int testParam);
};
int testFunc();
2. Compile it by GCC 5.4 with -fdump-translation-unit additional option:
./GCC-5.4/bin/g++ -fdump-translation-unit test.h
3. Check mangled names (GCC 5.4):
cat test.h.001t.tu |grep "testMethod\|testFunc\|TestClass"
@5 identifier_node strg: testFunc lngt: 8
@11 identifier_node strg: TestClass lngt: 9
@33 identifier_node strg: testMethod lngt: 10
@34 identifier_node strg: _ZN9TestClass10testMethodEi
4. Compile it by GCC 6.2 with -fdump-translation-unit additional option:
./GCC-6.2/bin/g++ -fdump-translation-unit test.h
5. Check mangled names (GCC 6.2):
cat test.h.001t.tu |grep "testMethod\|testFunc\|TestClass"
@5 identifier_node strg: testFunc lngt: 8
@11 identifier_node strg: TestClass lngt: 9
@33 identifier_node strg: testMethod lngt: 10
The mangled name "ZN9TestClass10testMethodEi" is missed when using GCC 6.2.
Thank you.
