Ben Wing wrote: > > I do see the crt0 is the very first thing linked, and > > /lib 540$ nm crt0.o > 00000000 b .bss > 00000000 d .data > 00000000 t .text > 00000000 D ___cygwin_crt0_bp > 00000000 t ___gnu_compiled_c > U _cygwin_crt0 > U _main > 00000000 T _mainCRTStartup > 00000000 t gcc2_compiled. > > so this *may* be harmless, but I think it needs to be fixed, perhaps just with a > flag that sets the entry point. > > BUT .... then again, maybe not. There's also a crt1.0, like this: > > /lib 542$ nm crt1.o > 00000000 b .bss > 00000000 d .data > 00000000 t .text > U _ExitProcess@4 > U _SetUnhandledExceptionFilter@4 > 00000230 T _WinMainCRTStartup > U __CRT_fmode > U __CRT_glob > U ___GetMainArgs > 00000000 t ___gnu_compiled_c > 000001b0 t ___mingw_CRTStartup > 00000000 D __argc > 00000004 D __argv > U __cexit > U __fileno > U __fpreset > 000000d0 t __gnu_exception_handler@4 > U __imp___environ_dll > U __imp___fmode_dll > U __imp___iob > 00000030 t __mingw32_init_fmode > 00000000 t __mingw32_init_mainargs > U __setmode > U _main > 00000210 T _mainCRTStartup > U _signal > 00000000 t gcc2_compiled. > > Notice that this also has mainCRTStartup in it, as well as WinMainCRTStartup. > My strong suspicion is that crt1.o is the correct CRT to be using for a > windowed-subsystem XEmacs; crt0.o, with no references to WinMain, has to be for > a console-subsystem XEmacs. So, by using the wrong CRT initialization, we could > easily be fucking ourselves in all sorts of ways. Hmmm...I think that crt0.o is for cygwin builds, crt1.o is for builds which use "cygwin-gcc -mno-cygwin" with a crt.dll runtime target, and crt2.o is for builds which use "cygwin-gcc -mno-cygwin" with an msvcrt.dll runtime target. > > So once again, what changed to produce this? If I'm right, cygwin's gcc recently changed so that the msvcrt runtime was the default target for -mno-cygwin builds; but that would just mean that crt1.o was replaced by crt2.o. Since cygwin builds (-mwindows notwithstanding) use crt0.o, this change would have no effect on cygwin builds. Hmm... I've copied this message to the cygwin list, in case the gurus there have any comment, or can confirm/deny my statement abouve about crtX.o. --Chuck -- Want to unsubscribe from this list? Check out: http://cygwin.com/ml/#unsubscribe-simple
