Lambda type names in debug info

[Mario Demontis via Gcc]

Hi all
Using gdb in the following c++ code:

template<typename T>
struct Wrap{
   T w;
};

int main() {
   auto l1 = [x = 5](int a){return x+a;};
   auto l2 = [x = 6](int a){return x+1;};
   auto l3 = [x = 7](){return 0.5;};
   Wrap<decltype(l1)> w1{l1};
   Wrap<decltype(l2)> w2{l2};
   Wrap<decltype(l3)> w3{l3};
   return 0;
}

(gdb) info types Wrap
All types matching regular expression "Wrap":

File C:\Sandbox\sampleproj\main.cpp:
8:      Wrap<main()::<lambda()> >;
8:      Wrap<main()::<lambda(int)> >;

It looks like the debugging information for Wrap<decltype(l1)> and
Wrap<decltype(l2)> are generated with the same name.

Also readelf --debug-dump=info confirms this insight.


This is preventing me to properly analyze the contents of Wrap objects in gdb.

Is there a way to work around this issue?

Kind regards

Mario