From mboxrd@z Thu Jan 1 00:00:00 1970 From: Peter Korsgaard Date: Mon, 24 Apr 2017 21:31:25 +0200 Subject: [Buildroot] [git commit] package/libunwind: disable for x86 with uClibc toolchain In-Reply-To: <20170417130858.BC09A826C1@busybox.osuosl.org> (Thomas Petazzoni's message of "Mon, 17 Apr 2017 15:08:22 +0200") References: <20170417130858.BC09A826C1@busybox.osuosl.org> Message-ID: <8737cxvbzm.fsf@dell.be.48ers.dk> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: buildroot@busybox.net >>>>> "Thomas" == Thomas Petazzoni writes: > commit: https://git.buildroot.net/buildroot/commit/?id=c5b56b0a20b2be24878d8bae66fbe665e8fea698 > branch: https://git.buildroot.net/buildroot/commit/?id=refs/heads/master > libunwind use sigreturn() while building for x86 [1] but this function > is not available with uClibc-ng. > This throw a warning during libunwind build: > In file included from x86/Los-linux.c:4:0: > x86/Gos-linux.c: In function ??_ULx86_local_resume??: > x86/Gos-linux.c:298:7: warning: implicit declaration of function ??sigreturn?? [-Wimplicit-function-declaration] > sigreturn (sc); > ^ > But any program trying to link against libunwind-generic.so fail to build: > [...]usr/lib/libunwind-generic.so: undefined reference to `sigreturn' > collect2: error: ld returned 1 exit status > Disable libunwind for x86 target when uClibc-ng is used. > Fixes: > http://autobuild.buildroot.net/results/54a/54afac8148cff5f3c17e83f80917fd9006948fe0//build-end.log > [1] http://git.savannah.gnu.org/gitweb/?p=libunwind.git;a=blob;f=src/x86/Gos-linux.c;h=17aebc2974af50eb0bf8292689b2ed22a4c97866;hb=HEAD#l299 > Signed-off-by: Romain Naour > Tested-by: "Yann E. MORIN" > Acked-by: "Yann E. MORIN" > Signed-off-by: Thomas Petazzoni Committed to 2017.02.x, thanks. -- Bye, Peter Korsgaard