[cfe-dev] choosing the gcc toolchain

[Reed Kotler]

On the big endian machine; which is the one we have as the build slave 
to the official llvm build bot, there is only one failure with your 
patch and it's some mips specific test in the driver.

  make check-all
llvm[0]: Running test suite
make[1]: Entering directory `/home/rkotler/caviumllvmwclangbe/build/test'
Making LLVM 'lit.site.cfg' file...
Making LLVM unittest 'lit.site.cfg' file...
make -C /home/rkotler/caviumllvmwclangbe/build/test/../tools/clang/test 
lit.site.cfg Unit/lit.site.cfg
make[2]: Entering directory 
`/home/rkotler/caviumllvmwclangbe/build/tools/clang/test'
Making Clang 'lit.site.cfg' file...
Making Clang 'Unit/lit.site.cfg' file...
make[2]: Leaving directory 
`/home/rkotler/caviumllvmwclangbe/build/tools/clang/test'
( ulimit -t 600 ; ulimit -d 512000 ; ulimit -m 512000 ; ulimit -s 8192 ; \
	  /usr/bin/python /home/rkotler/workspace/llvm/utils/lit/lit.py -s -v . 
/home/rkotler/caviumllvmwclangbe/build/test/../tools/clang/test )
lit.py: lit.cfg:196: note: using clang: 
'/home/rkotler/caviumllvmwclangbe/build/Release+Asserts/bin/clang'
FAIL: Clang :: Driver/mips-reduced-toolchain.cpp (2882 of 16898)
******************** TEST 'Clang :: Driver/mips-reduced-toolchain.cpp' 
FAILED ********************
Script:
--
/home/rkotler/caviumllvmwclangbe/build/Release+Asserts/bin/clang 
-no-canonical-prefixes 
/home/rkotler/workspace/llvm/tools/clang/test/Driver/mips-reduced-toolchain.cpp 
-### -o 
/home/rkotler/caviumllvmwclangbe/build/tools/clang/test/Driver/Output/mips-reduced-toolchain.cpp.tmp.o 
2>&1      --target=mips-linux-gnu 
--sysroot=/home/rkotler/workspace/llvm/tools/clang/test/Driver/Inputs/debian_reduced_mips_tree 
    | FileCheck --check-prefix=CHECK-DEBIAN-MIPS 
/home/rkotler/workspace/llvm/tools/clang/test/Driver/mips-reduced-toolchain.cpp
/home/rkotler/caviumllvmwclangbe/build/Release+Asserts/bin/clang 
-no-canonical-prefixes 
/home/rkotler/workspace/llvm/tools/clang/test/Driver/mips-reduced-toolchain.cpp 
-### -o 
/home/rkotler/caviumllvmwclangbe/build/tools/clang/test/Driver/Output/mips-reduced-toolchain.cpp.tmp.o 
2>&1      --target=mipsel-linux-gnu 
--sysroot=/home/rkotler/workspace/llvm/tools/clang/test/Driver/Inputs/debian_reduced_mips_tree 
    | FileCheck --check-prefix=CHECK-DEBIAN-MIPSEL 
/home/rkotler/workspace/llvm/tools/clang/test/Driver/mips-reduced-toolchain.cpp
--
Exit Code: 1

Command Output (stderr):
--
/home/rkotler/workspace/llvm/tools/clang/test/Driver/mips-reduced-toolchain.cpp:9:23: 
error: expected string not found in input
// CHECK-DEBIAN-MIPS: 
"{{.*}}/usr/lib/gcc/mips-linux-gnu/4.7{{/|\\\\}}crtbegin.o"
                       ^
<stdin>:6:113: note: scanning from here
  "/usr/bin/ld" 
"--sysroot=/home/rkotler/workspace/llvm/tools/clang/test/Driver/Inputs/debian_reduced_mips_tree" 
"--sysroot=/home/rkotler/workspace/llvm/tools/clang/test/Driver/Inputs/debian_reduced_mips_tree" 
"--build-id" "--eh-frame-hdr" "-m" "elf32btsmip" "-dynamic-linker" 
"/lib/ld.so.1" "-o" 
"/home/rkotler/caviumllvmwclangbe/build/tools/clang/test/Driver/Output/mips-reduced-toolchain.cpp.tmp.o" 
"crt1.o" "crti.o" "crtbegin.o" "/tmp/mips-reduced-toolchain-6e24a4.o" 
"-lgcc" "--as-needed" "-lgcc_s" "--no-as-needed" "-lc" "-lgcc" 
"--as-needed" "-lgcc_s" "--no-as-needed" "crtend.o" "crtn.o"
 
                                          ^
<stdin>:6:549: note: possible intended match here
  "/usr/bin/ld" 
"--sysroot=/home/rkotler/workspace/llvm/tools/clang/test/Driver/Inputs/debian_reduced_mips_tree" 
"--sysroot=/home/rkotler/workspace/llvm/tools/clang/test/Driver/Inputs/debian_reduced_mips_tree" 
"--build-id" "--eh-frame-hdr" "-m" "elf32btsmip" "-dynamic-linker" 
"/lib/ld.so.1" "-o" 
"/home/rkotler/caviumllvmwclangbe/build/tools/clang/test/Driver/Output/mips-reduced-toolchain.cpp.tmp.o" 
"crt1.o" "crti.o" "crtbegin.o" "/tmp/mips-reduced-toolchain-6e24a4.o" 
"-lgcc" "--as-needed" "-lgcc_s" "--no-as-needed" "-lc" "-lgcc" 
"--as-needed" "-lgcc_s" "--no-as-needed" "crtend.o" "crtn.o"
 
 
 
 
 
 
 
                                                    ^

--

********************
Testing Time: 1593.28s
********************
Failing Tests (1):
     Clang :: Driver/mips-reduced-toolchain.cpp

   Expected Passes    : 16759
   Expected Failures  : 95
   Unsupported Tests  : 43
   Unexpected Failures: 1
make[1]: *** [check-local-all] Error 1
make[1]: Leaving directory `/home/rkotler/caviumllvmwclangbe/build/test'
make: *** [check-all] Error 2

On 03/03/2014 02:00 PM, reed kotler wrote:
> So it seems to work.
>
> rkotler at mipsswbrd006-le:~/caviumnativellvm/build$
> ./Release+Asserts/bin/clang++ -v -target mipsel-unknown-linux-gnu
> clang version 3.5
> (gitosis-ePK3LoutQbwPXssp/fMQcEEOCMrvLtNR at public.gmane.org:clang.git
> f4481e0e412e3f817e65d5ce1c835381dc7a7773)
> (gitosis-ePK3LoutQbwPXssp/fMQcEEOCMrvLtNR at public.gmane.org:llvm.git
> 18fe44cb057e4b11533bd3f814b96fdca724baf0)
> Target: mipsel-unknown-linux-gnu
> Thread model: posix
> Found candidate GCC installation: /usr/lib/gcc/mipsel-linux-gnu/4.4
> Found candidate GCC installation: /usr/lib/gcc/mipsel-linux-gnu/4.4.6
> Found candidate GCC installation: /usr/lib/gcc/mipsel-linux-gnu/4.4.7
> Found candidate GCC installation: /usr/lib/gcc/mipsel-linux-gnu/4.6
> Found candidate GCC installation: /usr/lib/gcc/mipsel-linux-gnu/4.6.3
> Found candidate GCC installation: /usr/lib/gcc/mipsel-linux-gnu/4.7
> Found candidate GCC installation: /usr/lib/gcc/mipsel-linux-gnu/4.7.2
> Selected GCC installation: /usr/lib/gcc/mipsel-linux-gnu/4.7
> Candidate multilib: .;@m32
> Selected multilib: .;@m32
>
> rkotler at mipsswbrd006-le:~/caviumnativellvm/build$ find /usr/lib -name
> crtbegin.o
> /usr/lib/gcc/mipsel-linux-gnu/4.7/crtbegin.o
> /usr/lib/gcc/mipsel-linux-gnu/4.6/64/crtbegin.o
> /usr/lib/gcc/mipsel-linux-gnu/4.6/n32/crtbegin.o
> /usr/lib/gcc/mipsel-linux-gnu/4.6/crtbegin.o
> /usr/lib/gcc/mipsel-linux-gnu/4.4/crtbegin.o
> rkotler at mipsswbrd006-le:~/caviumnativellvm/build$
>
> 4.7.2 is linked to 4.7
>
> rkotler at mipsswbrd006-le:~/caviumnativellvm/build$ ls -l
> /usr/lib/gcc/mipsel-linux-gnu/4.7.2
> lrwxrwxrwx 1 root root 3 Oct  7 14:44
> /usr/lib/gcc/mipsel-linux-gnu/4.7.2 -> 4.7
> rkotler at mipsswbrd006-le:~/caviumnativellvm/build$
>
> rkotler at mipsswbrd006-le:~/caviumnativellvm/build$
> ./Release+Asserts/bin/clang++ -v -target mipsel-unknown-linux-gnu
>
> rkotler at mipsswbrd006-le:~/caviumnativellvm/build$
> On 03/03/2014 10:59 AM, Simon Atanasyan wrote:
>> On Mon, Mar 3, 2014 at 10:42 PM, Reed Kotler
>> <rkotler-8NJIiSa5LzA at public.gmane.org> wrote:
>>> I reran with mip32. Seems to not work at all now.
>> Could you run "find /usr/lib -name crtbegin.o" on that host?
>>