[LLVMdev] Building llvm and cfrontend under cygwin

[Oleg Smolsky]

Hi Chris,

> Also note, LLVM 1.4 will be released in the next few days, so if
waiting is 
> an option, you might choose to do so.
Alright, I've got llvm and llvm-gcc from RELEASE_14 cvs and tried
building it under cygwin.

1) The first problem is with llvm in SysUtils.c:
int executeProgram(const char *filename, char *const argv[], char *const
envp[])
{
	................
	execveTy execvePtr = (execveTy) dlsym(RTLD_NEXT, "execve");
	.....
}

RTLD_NEXT is not defined in cygwin headers.

2) cfontend built ok
3) full llvm failed to build:

make[3]: Entering directory
`/cygdrive/d/3rd-party/llvm/runtime/GCCLibraries/crtend'
llvm[3]: Compiling Exception.cpp for Debug build (bytecode)
llvm[3]: Linking comp_genericeh.bc component...
llvm[3]: Compiling crtend.c for Debug build (bytecode)
llvm[3]: Compiling listend.ll for Debug build
llvm[3]: Linking comp_main.bc component...
assertion "(Result->isFirstClassType() || Result == Type::VoidTy ||
isa<OpaqueType>(Result)) && "LLVM functions cannot return aggregates""
failed: file "Type.cpp", line 373
make[3]: ***
[/cygdrive/d/3rd-party/llvm/runtime/GCCLibraries/crtend/Debug/comp_main.
bc] Error 1
make[3]: Leaving directory
`/cygdrive/d/3rd-party/llvm/runtime/GCCLibraries/crtend'
make[2]: *** [crtend/.makeall] Error 2
make[2]: Leaving directory
`/cygdrive/d/3rd-party/llvm/runtime/GCCLibraries'
make[1]: *** [GCCLibraries/.makeall] Error 2
make[1]: Leaving directory `/cygdrive/d/3rd-party/llvm/runtime'
make: *** [all] Error 1

Here is the output of "make VERBOSE=1" executed after "make clean" in
`/cygdrive/d/3rd-party/llvm/runtime/GCCLibraries/crtend':

/cygdrive/d/3rd-party/llvm/autoconf/mkinstalldirs
/cygdrive/d/3rd-party/llvm/runtime/GCCLibraries/crtend/Debug > /dev/null
/usr/bin/date >
/cygdrive/d/3rd-party/llvm/runtime/GCCLibraries/crtend/Debug/.dir
llvm[0]: Compiling Exception.cpp for Debug build (bytecode)
if
PATH=/cygdrive/d/3rd-party/llvm/Debug/bin:/cygdrive/d/3rd-party/llvm/Deb
ug/bin:/usr/local/bin:/usr/bin:/bin
/cygdrive/d/3rd-party/cfrontend/install/bin/g++
-I/cygdrive/d/3rd-party/llvm/runtime/GCCLibraries/crtend
-I/cygdrive/d/3rd-party/llvm/runtime/GCCLibraries/crtend
-I/cygdrive/d/3rd-party/llvm/include
-I/cygdrive/d/3rd-party/llvm/include
-I/cygdrive/d/3rd-party/llvm/include
-I/cygdrive/d/3rd-party/llvm/include -D_GNU_SOURCE -D__STDC_LIMIT_MACROS
-Wall -W -Wwrite-strings -Wno-unused -g -D_DEBUG  -c -Wa,-strip-debug
-MD -MT
/cygdrive/d/3rd-party/llvm/runtime/GCCLibraries/crtend/Debug/Exception.b
c -MP -MF
"/cygdrive/d/3rd-party/llvm/runtime/GCCLibraries/crtend/Debug/Exception.
BCCXXd" Exception.cpp -o
/cygdrive/d/3rd-party/llvm/runtime/GCCLibraries/crtend/Debug/Exception.b
c ; \
then /usr/bin/mv -f
"/cygdrive/d/3rd-party/llvm/runtime/GCCLibraries/crtend/Debug/Exception.
BCCXXd"
"/cygdrive/d/3rd-party/llvm/runtime/GCCLibraries/crtend/Debug/Exception.
d"; \
else /usr/bin/rm -f
"/cygdrive/d/3rd-party/llvm/runtime/GCCLibraries/crtend/Debug/Exception.
BCCXXd"; exit 1; fi
llvm[0]: Linking comp_genericeh.bc component...
/cygdrive/d/3rd-party/llvm/Debug/bin/gccld.exe -link-as-library \
-internalize-public-api-file=/cygdrive/d/3rd-party/llvm/runtime/GCCLibra
ries/crtend/comp_genericeh.lst \
/cygdrive/d/3rd-party/llvm/runtime/GCCLibraries/crtend/Debug/Exception.b
c -o
/cygdrive/d/3rd-party/llvm/runtime/GCCLibraries/crtend/Debug/comp_generi
ceh.bc 
llvm[0]: Compiling crtend.c for Debug build (bytecode)
if
PATH=/cygdrive/d/3rd-party/llvm/Debug/bin:/cygdrive/d/3rd-party/llvm/Deb
ug/bin:/usr/local/bin:/usr/bin:/bin
/cygdrive/d/3rd-party/cfrontend/install/bin/gcc
-I/cygdrive/d/3rd-party/llvm/runtime/GCCLibraries/crtend
-I/cygdrive/d/3rd-party/llvm/runtime/GCCLibraries/crtend
-I/cygdrive/d/3rd-party/llvm/include
-I/cygdrive/d/3rd-party/llvm/include
-I/cygdrive/d/3rd-party/llvm/include
-I/cygdrive/d/3rd-party/llvm/include -D_GNU_SOURCE -D__STDC_LIMIT_MACROS
-Wall -W -Wwrite-strings -Wno-unused -g -D_DEBUG  -c -Wa,-strip-debug
-MD -MT
/cygdrive/d/3rd-party/llvm/runtime/GCCLibraries/crtend/Debug/crtend.bc
-MP -MF
"/cygdrive/d/3rd-party/llvm/runtime/GCCLibraries/crtend/Debug/crtend.BCC
d" crtend.c -o
/cygdrive/d/3rd-party/llvm/runtime/GCCLibraries/crtend/Debug/crtend.bc ;
\
then /usr/bin/mv -f
"/cygdrive/d/3rd-party/llvm/runtime/GCCLibraries/crtend/Debug/crtend.BCC
d"
"/cygdrive/d/3rd-party/llvm/runtime/GCCLibraries/crtend/Debug/crtend.d";
\
else /usr/bin/rm -f
"/cygdrive/d/3rd-party/llvm/runtime/GCCLibraries/crtend/Debug/crtend.BCC
d"; exit 1; fi
llvm[0]: Compiling listend.ll for Debug build
/cygdrive/d/3rd-party/llvm/Debug/bin/llvm-as.exe listend.ll -f -o
/cygdrive/d/3rd-party/llvm/runtime/GCCLibraries/crtend/Debug/listend.bc
llvm[0]: Linking comp_main.bc component...
/cygdrive/d/3rd-party/llvm/Debug/bin/gccld.exe -link-as-library \
-internalize-public-api-file=/cygdrive/d/3rd-party/llvm/runtime/GCCLibra
ries/crtend/comp_main.lst \
/cygdrive/d/3rd-party/llvm/runtime/GCCLibraries/crtend/Debug/crtend.bc
/cygdrive/d/3rd-party/llvm/runtime/GCCLibraries/crtend/Debug/listend.bc
-o
/cygdrive/d/3rd-party/llvm/runtime/GCCLibraries/crtend/Debug/comp_main.b
c
assertion "(Result->isFirstClassType() || Result == Type::VoidTy ||
isa<OpaqueType>(Result)) && "LLVM functions cannot return aggregates""
failed: file "Type.cpp", line 373
make: ***
[/cygdrive/d/3rd-party/llvm/runtime/GCCLibraries/crtend/Debug/comp_main.
bc] Error 1

Thanks,
Oleg.