Build of pe/pec fails with GCC 4.7.3

[dmik]

There is one incompatibility with GCC 4.7.3 in Odin: the PE and PEC tools.

They use custom startup code (to reserve as low virtual address in private memory space as possible — this is vital for some WIn32 .EXE files which have the very low virtual entry point which we must be able to provide as there is 1-to-1 address mapping).

However, GCC 4.7.3 puts a reference to __ehInit (C++ exception handling) in each object file it generates. And since we don't link to the normal CRT startup code in case of PE/PEC, this symbol remains undefined. This seems like a bug of GCC, more details are here: ​https://github.com/psmedley/gcc/issues/8.

[psmedley]

pe and pec built fine for me with gcc 4.7.3 (my own build not the rpm one)

[dmik]

Can you check if pe.o (and other .o files) has a __ehInit reference?

[ydario]

using -fno-asynchronous-unwind-tables produces a object file without unwinding table (so without eh_frame and _ehInit).

[dmik]

The issue has been fixed within ​https://github.com/psmedley/gcc/issues/8. The new build of gcc 4.9.2 that includes this fix works well w/o the need to specify -fno-asynchronous-unwind-tables by hand as is now assumed by default on OS/2.