PGO in gcc-8

[Alexei1981]

Hey.Is PGO Disabled in the GCC-8 (7.6) compiler?
I tried to profile one program with the flag -fprofile-generate and -lgcov,but the file .gcda did not appear.Why?

[its-pointless]

This is needed in your code. Otherwise it exits before writing the file.
__gcov_flush();

[its-pointless]

I suppose a better answer would be appropriate. Because of the way android linker works it doesn't pull in enough from libgcov.a to work. The android ndk itself has there libgcov src in it.
Also you can mv libgcc.a from $PREFIX/lib and gcc will use its own libgcc.a and it will also work. (This is largely untested though)