From c5b56b0a20b2be24878d8bae66fbe665e8fea698 Mon Sep 17 00:00:00 2001 From: Romain Naour Date: Sun, 16 Apr 2017 21:49:06 +0200 Subject: [PATCH] package/libunwind: disable for x86 with uClibc toolchain MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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 --- package/libunwind/Config.in | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/package/libunwind/Config.in b/package/libunwind/Config.in index 5527a2bc21..9007ce51c2 100644 --- a/package/libunwind/Config.in +++ b/package/libunwind/Config.in @@ -15,7 +15,7 @@ config BR2_PACKAGE_LIBUNWIND_ARCH_SUPPORTS BR2_mips64el || BR2_powerpc || BR2_sh || BR2_i386 || BR2_x86_64) default y if BR2_TOOLCHAIN_USES_UCLIBC && \ (((BR2_arm || BR2_armeb) && BR2_ARM_CPU_HAS_ARM) || \ - BR2_i386 || BR2_mips || BR2_mipsel || \ + BR2_mips || BR2_mipsel || \ BR2_mips64 || BR2_mips64el || BR2_x86_64) default y if BR2_TOOLCHAIN_USES_MUSL && \ (((BR2_arm || BR2_armeb) && BR2_ARM_CPU_HAS_ARM) || \