Re: [Tinycc-devel] tcc build on OSX

[David Mertens]

Hello Assaf,

On Sun, May 1, 2016 at 6:03 PM, Assaf Gordon <address@hidden> wrote:

Hello,

I can try to test some things on Mac OS X (10.10.4 with clang-602.0.53). please let me know if there are specific tests to do.

That would be great!

 

from a cursory look, perhaps it is possible that 'tcc' still compiles linux/ELF format despite being on Mac?

That is correct. It does produce proper machine code, however. This means that tcc can be used when invoked with the -run command-line option, and it can be used a jit compiler. So, I think the output that you give below makes sense.

David

 

regards,
 - gordon


===
$ uname
Darwin x 14.4.0 Darwin Kernel Version 14.4.0: Thu May 28 11:35:04 PDT 2015; root:xnu-2782.30.5~1/RELEASE_X86_64 x86_64 i386 MacBookAir6,1 Darwin

$ git id
release_0_9_26-676-g6afe668

$ make distclean
$ ./configure
./configure
Binary  directory   /usr/local/bin
TinyCC directory    /usr/local/lib/tcc
Library directory   /usr/local/lib64
Include directory   /usr/local/include
Manual directory    /usr/local/share/man
Info directory      /usr/local/share/info
Doc directory       /usr/local/share/doc//usr/local/lib/tcc
Target root prefix
Source path      /Users/gordon/sources/tinycc
C compiler       gcc
cross compilers  no
Target CPU       x86-64
Host OS          Darwin
Target OS        Darwin
Big Endian       no
gprof enabled    no
use libgcc       no
Creating config.mak and config.h

$ make

$ ./tcc -v
tcc version 0.9.26 (x86-64 Linux)

$ cat 1.c
#include <stdio.h>

int main()
{
  printf("hello TCC world\n");
  return 0;
}

$ ./tcc -c -o 1.o 1.c
In file included from 1.c:1:
In file included from /usr/include/stdio.h:64:
/usr/include/sys/cdefs.h:81: warning: #warning "Unsupported compiler detected"

$ file 1.o
1.o: ELF 64-bit LSB relocatable, x86-64, version 1 (SYSV), not stripped

$ ./tcc -o 1 1.c
tcc: error: file 'crt1.o' not found
tcc: error: file 'crti.o' not found
In file included from 1.c:1:
In file included from /usr/include/stdio.h:64:
/usr/include/sys/cdefs.h:81: warning: #warning "Unsupported compiler detected"
tcc: error: file 'crtn.o' not found
tcc: error: undefined symbol 'printf'
===




For reference, here's the compilation and linking with apple's LLVM:
===
$ cc -v -c -o 1.o 1.c
Apple LLVM version 6.1.0 (clang-602.0.53) (based on LLVM 3.6.0svn)
Target: x86_64-apple-darwin14.4.0
Thread model: posix
 "/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang" -cc1 -triple x86_64-apple-macosx10.10.0 -emit-obj -mrelax-all -disable-free -disable-llvm-verifier -main-file-name 1.c -mrelocation-model pic -pic-level 2 -mdisable-fp-elim -masm-verbose -munwind-tables -target-cpu core2 -target-linker-version 242.2 -v -dwarf-column-info -coverage-file /Users/gordon/sources/tinycc/1.o -resource-dir /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../lib/clang/6.1.0 -fdebug-compilation-dir /Users/gordon/sources/tinycc -ferror-limit 19 -fmessage-length 150 -stack-protector 1 -mstackrealign -fblocks -fobjc-runtime=macosx-10.10.0 -fencode-extended-block-signature -fmax-type-align=16 -fdiagnostics-show-option -fcolor-diagnostics -o 1.o -x c 1.c
clang -cc1 version 6.1.0 based upon LLVM 3.6.0svn default target x86_64-apple-darwin14.4.0
#include "..." search starts here:
#include <...> search starts here:
 /usr/local/include
 /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../lib/clang/6.1.0/include
 /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include
 /usr/include
 /System/Library/Frameworks (framework directory)
 /Library/Frameworks (framework directory)
End of search list.

$ file 1.o
1.o: Mach-O 64-bit object x86_64

$ cc -v -o 1 1.o
Apple LLVM version 6.1.0 (clang-602.0.53) (based on LLVM 3.6.0svn)
Target: x86_64-apple-darwin14.4.0
Thread model: posix
 "/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld" -demangle -dynamic -arch x86_64 -macosx_version_min 10.10.0 -o 1 1.o -lSystem /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../lib/clang/6.1.0/lib/darwin/libclang_rt.osx.a

$ file 1
1: Mach-O 64-bit executable x86_64
===

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