So I’ve built llvm-2.2 using Cygwin, and I think I’ve got all the right bits in the right places, but I’m getting a strange error when running through the hello.c examples from the Web site:
Ted@XPLanguages /cygdrive/c/Projects/Exploration/llvm
$ gcc hello.s -o hello.native
Ted@XPLanguages /cygdrive/c/Projects/Exploration/llvm
$ ls
hello.bc hello.c* hello.exe* hello.native* hello.s
Ted@XPLanguages /cygdrive/c/Projects/Exploration/llvm
$ ./hello.native
hello world
Ted@XPLanguages /cygdrive/c/Projects/Exploration/llvm
$ lli hello.bc
ERROR: Program used external function ‘__main’ which could not be resolved!
Aborted
Is there something Really Really Simple ™ that I’m missing here? AFAIK, __main is supposed to be inside hello.bc, so why can’t lli find it?
Ted Neward
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So I’ve built llvm-2.2 using Cygwin, and I think I’ve got all the right bits in the right places, but I’m getting a strange error when running through the hello.c examples from the Web site:
How did you create hello.s? What version of llvm-gcc are you using? 4.2? Have you tried compiling hello.s to hello.native with llvm-gcc instead of gcc?
-Chris
(*) hello.s was created as per what’s on the LLVM page:
Ted@XPLanguages /cygdrive/c/Projects/Exploration/llvm
$ llc hello.bc -o hello.s
(*) gcc is llvm-gcc, compiled from the llvm-gcc-4.2 source tree:
Ted@XPLanguages /cygdrive/c/Projects/Exploration/llvm
$ gcc --version
gcc (GCC) 4.2.1 (Based on Apple Inc. build 5546) (LLVM build)
Copyright (C) 2007 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
(*) Yes, I compiled hello.s → hello.native using llvm-gcc, since that’s what’s on the PATH ahead of the original Cygwin gcc. Hello.native also runs just fine.
Ted Neward
Java, .NET, XML Services
Consulting, Teaching, Speaking, Writing
http://www.tedneward.com