Write test case for libstdc++ with C source

[Sebastian Huber]

On 04/27/2014 03:01 PM, Sebastian Huber wrote:
> Hallo,
>
> I would like to add a test case to the libstdc++ tests to test for 
> C/C++ compatibility of the atomic operations.  A straight forward 
> approach like in the attached patch doesn't work since the 
> "dg-additional-sources" is not supported:
>
> ERROR: 29_atomics/atomic/pr60932-c++.cc: unknown dg option: 
> dg-additional-sources 3 pr60932-c.c for " dg-additional-sources 3 
> "pr60932-c.c" "
> UNRESOLVED: 29_atomics/atomic/pr60932-c++.cc: unknown dg option: 
> dg-additional-sources 3 pr60932-c.c for " dg-additional-sources 3 
> "pr60932-c.c" "
>
> Since I am not an expert in the GCC test suite scripts, is it possible 
> to add such a test case at all with a moderate amount of work?
>

Since this patch

2014-05-20  Sebastian Huber <sebastian.huber@embedded-brains.de>

     * testsuite/lib/libstdc++.exp (load_gcc_lib): Register loaded libs.

I am one step further.  The dg-additional-sources is recognized in the 
attached test case, but it seems to have no effect:

Executing on host: /home/sh/git-build/b-gcc-devel-linux/./gcc/xg++ 
-shared-libgcc -B/home/sh/git-build/b-gcc-devel-linux/./gcc -nostdinc++ 
-L/home/sh/git-build/b-gcc-devel-linux/x86_64-unknown-linux-gnu/libstdc++-v3/src 
-L/home/sh/git-build/b-gcc-devel-linux/x86_64-unknown-linux-gnu/libstdc++-v3/src/.libs 
-L/home/sh/git-build/b-gcc-devel-linux/x86_64-unknown-linux-gnu/libstdc++-v3/libsupc++/.libs 
-B/scratch/install-gcc-devel/x86_64-unknown-linux-gnu/bin/ 
-B/scratch/install-gcc-devel/x86_64-unknown-linux-gnu/lib/ -isystem 
/scratch/install-gcc-devel/x86_64-unknown-linux-gnu/include -isystem 
/scratch/install-gcc-devel/x86_64-unknown-linux-gnu/sys-include 
-B/home/sh/git-build/b-gcc-devel-linux/x86_64-unknown-linux-gnu/./libstdc++-v3/src/.libs 
-fdiagnostics-color=never -D_GLIBCXX_ASSERT -fmessage-length=0 
-ffunction-sections -fdata-sections  -g -O2 -DLOCALEDIR="." -nostdinc++ 
-I/home/sh/git-build/b-gcc-devel-linux/x86_64-unknown-linux-gnu/libstdc++-v3/include/x86_64-unknown-linux-gnu 
-I/home/sh/git-build/b-gcc-devel-linux/x86_64-unknown-linux-gnu/libstdc++-v3/include 
-I/home/sh/archive/gcc-devel/libstdc++-v3/libsupc++ 
-I/home/sh/archive/gcc-devel/libstdc++-v3/include/backward 
-I/home/sh/archive/gcc-devel/libstdc++-v3/testsuite/util 
/home/sh/archive/gcc-devel/libstdc++-v3/testsuite/29_atomics/atomic/pr60932-c++.cc 
-std=c++11 ./libtestc++.a -Wl,--gc-sections  -lm   -o 
./pr60932-c++.exe    (timeout = 600)
spawn /home/sh/git-build/b-gcc-devel-linux/./gcc/xg++ -shared-libgcc 
-B/home/sh/git-build/b-gcc-devel-linux/./gcc -nostdinc++ 
-L/home/sh/git-build/b-gcc-devel-linux/x86_64-unknown-linux-gnu/libstdc++-v3/src 
-L/home/sh/git-build/b-gcc-devel-linux/x86_64-unknown-linux-gnu/libstdc++-v3/src/.libs 
-L/home/sh/git-build/b-gcc-devel-linux/x86_64-unknown-linux-gnu/libstdc++-v3/libsupc++/.libs 
-B/scratch/install-gcc-devel/x86_64-unknown-linux-gnu/bin/ 
-B/scratch/install-gcc-devel/x86_64-unknown-linux-gnu/lib/ -isystem 
/scratch/install-gcc-devel/x86_64-unknown-linux-gnu/include -isystem 
/scratch/install-gcc-devel/x86_64-unknown-linux-gnu/sys-include 
-B/home/sh/git-build/b-gcc-devel-linux/x86_64-unknown-linux-gnu/./libstdc++-v3/src/.libs 
-fdiagnostics-color=never -D_GLIBCXX_ASSERT -fmessage-length=0 
-ffunction-sections -fdata-sections -g -O2 -DLOCALEDIR="." -nostdinc++ 
-I/home/sh/git-build/b-gcc-devel-linux/x86_64-unknown-linux-gnu/libstdc++-v3/include/x86_64-unknown-linux-gnu 
-I/home/sh/git-build/b-gcc-devel-linux/x86_64-unknown-linux-gnu/libstdc++-v3/include 
-I/home/sh/archive/gcc-devel/libstdc++-v3/libsupc++ 
-I/home/sh/archive/gcc-devel/libstdc++-v3/include/backward 
-I/home/sh/archive/gcc-devel/libstdc++-v3/testsuite/util 
/home/sh/archive/gcc-devel/libstdc++-v3/testsuite/29_atomics/atomic/pr60932-c++.cc 
-std=c++11 ./libtestc++.a -Wl,--gc-sections -lm -o ./pr60932-c++.exe
/tmp/ccN0vuIk.o: In function `main':
/home/sh/archive/gcc-devel/libstdc++-v3/testsuite/29_atomics/atomic/pr60932-c++.cc:12: 
undefined reference to `i'
collect2: error: ld returned 1 exit status
compiler exited with status 1
output is:
/tmp/ccN0vuIk.o: In function `main':
/home/sh/archive/gcc-devel/libstdc++-v3/testsuite/29_atomics/atomic/pr60932-c++.cc:12: 
undefined reference to `i'
collect2: error: ld returned 1 exit status

FAIL: 29_atomics/atomic/pr60932-c++.cc (test for excess errors)
Excess errors:
/home/sh/archive/gcc-devel/libstdc++-v3/testsuite/29_atomics/atomic/pr60932-c++.cc:12: 
undefined reference to `i'
collect2: error: ld returned 1 exit status

extra_tool_flags are:
  -x c -std=c11
compiling and executing as C, not C++
Executing on host: /home/sh/git-build/b-gcc-devel-linux/./gcc/xgcc 
-B/home/sh/git-build/b-gcc-devel-linux/./gcc/ 
-B/scratch/install-gcc-devel/x86_64-unknown-linux-gnu/bin/ 
-B/scratch/install-gcc-devel/x86_64-unknown-linux-gnu/lib/ -isystem 
/scratch/install-gcc-devel/x86_64-unknown-linux-gnu/include -isystem 
/scratch/install-gcc-devel/x86_64-unknown-linux-gnu/sys-include 
-B/home/sh/git-build/b-gcc-devel-linux/x86_64-unknown-linux-gnu/./libstdc++-v3/src/.libs 
-fdiagnostics-color=never -D_GLIBCXX_ASSERT -fmessage-length=0 
-ffunction-sections -fdata-sections  -g -O2 -DLOCALEDIR="." 
-I/home/sh/git-build/b-gcc-devel-linux/x86_64-unknown-linux-gnu/libstdc++-v3/include/x86_64-unknown-linux-gnu 
-I/home/sh/git-build/b-gcc-devel-linux/x86_64-unknown-linux-gnu/libstdc++-v3/include 
-I/home/sh/archive/gcc-devel/libstdc++-v3/libsupc++ 
-I/home/sh/archive/gcc-devel/libstdc++-v3/include/backward 
-I/home/sh/archive/gcc-devel/libstdc++-v3/testsuite/util 
-L/home/sh/git-build/b-gcc-devel-linux/x86_64-unknown-linux-gnu/./libstdc++-v3/libsupc++/.libs 
-L/home/sh/git-build/b-gcc-devel-linux/x86_64-unknown-linux-gnu/./libstdc++-v3/src/.libs 
/home/sh/archive/gcc-devel/libstdc++-v3/testsuite/29_atomics/atomic/pr60932-c.c 
-std=c11 -S  -o pr60932-c.s    (timeout = 600)
spawn /home/sh/git-build/b-gcc-devel-linux/./gcc/xgcc 
-B/home/sh/git-build/b-gcc-devel-linux/./gcc/ 
-B/scratch/install-gcc-devel/x86_64-unknown-linux-gnu/bin/ 
-B/scratch/install-gcc-devel/x86_64-unknown-linux-gnu/lib/ -isystem 
/scratch/install-gcc-devel/x86_64-unknown-linux-gnu/include -isystem 
/scratch/install-gcc-devel/x86_64-unknown-linux-gnu/sys-include 
-B/home/sh/git-build/b-gcc-devel-linux/x86_64-unknown-linux-gnu/./libstdc++-v3/src/.libs 
-fdiagnostics-color=never -D_GLIBCXX_ASSERT -fmessage-length=0 
-ffunction-sections -fdata-sections -g -O2 -DLOCALEDIR="." 
-I/home/sh/git-build/b-gcc-devel-linux/x86_64-unknown-linux-gnu/libstdc++-v3/include/x86_64-unknown-linux-gnu 
-I/home/sh/git-build/b-gcc-devel-linux/x86_64-unknown-linux-gnu/libstdc++-v3/include 
-I/home/sh/archive/gcc-devel/libstdc++-v3/libsupc++ 
-I/home/sh/archive/gcc-devel/libstdc++-v3/include/backward 
-I/home/sh/archive/gcc-devel/libstdc++-v3/testsuite/util 
-L/home/sh/git-build/b-gcc-devel-linux/x86_64-unknown-linux-gnu/./libstdc++-v3/libsupc++/.libs 
-L/home/sh/git-build/b-gcc-devel-linux/x86_64-unknown-linux-gnu/./libstdc++-v3/src/.libs 
/home/sh/archive/gcc-devel/libstdc++-v3/testsuite/29_atomics/atomic/pr60932-c.c 
-std=c11 -S -o pr60932-c.s
PASS: 29_atomics/atomic/pr60932-c.c (test for excess errors)


-- 
Sebastian Huber, embedded brains GmbH

Address : Dornierstr. 4, D-82178 Puchheim, Germany
Phone   : +49 89 189 47 41-16
Fax     : +49 89 189 47 41-09
E-Mail  : sebastian.huber@embedded-brains.de
PGP     : Public key available on request.

Diese Nachricht ist keine geschäftliche Mitteilung im Sinne des EHUG.

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