libunwind: backport patch to link against libgcc_s intead of libgcc
PATCH 1/1 libunwind: backport patch to link against libgcc_s intead of libgcc
Signed-off-by Jonathan Liu <[email protected]>
--- ...-libunwind-to-libgcc_s-rather-than-libgcc.patch | 42 ++++++++++++++++++++++ meta/recipes-support/libunwind/libunwind_1.1.bb | 1 + 2 files changed, 43 insertions(+) create mode 100644 meta/recipes-support/libunwind/libunwind-1.1/Link-libunwind-to-libgcc_s-rather-than-libgcc.patch
meta/recipes-support/libunwind/libunwind-1.1/Link-libunwind-to-libgcc_s-rather-than-libgcc.patch new file +42 -0
@@ -0,0 +1,42 @@ +From 508ca17a7be01d1cc960d9a07d0af4513948fb8d Mon Sep 17 00:00:00 2001 +From: Thierry Reding <[email protected]> +Date: Fri, 27 Jun 2014 08:40:33 +0200 +Subject: [PATCH] Link libunwind to libgcc_s rather than libgcc + +For some architectures, -lgcc and -lgcc_s are not equivalent. On ARM for +example, libgcc_s.so.1 contains some symbols needed by libunwind which +are not present in libgcc. + +This causes the following link error when building the X.Org X server +with libunwind support: + + CCLD Xorg + /usr/lib/libunwind.so: undefined reference to `__aeabi_unwind_cpp_pr0' + /usr/lib/libunwind.so: undefined reference to `__aeabi_unwind_cpp_pr1' + +Linking against libgcc_s explicitly solves this problem. + +Upstream-Status: Backport + +Signed-off-by: Thierry Reding <[email protected]> +Signed-off-by: Jonathan Liu <[email protected]> +--- + configure.ac | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +diff --git a/configure.ac b/configure.ac +index cffe19b..3beb5f2 100644 +--- a/configure.ac ++++ b/configure.ac +@@ -258,7 +258,7 @@ AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[#ifndef __INTEL_COMPILER + + if test x$GCC = xyes -a x$intel_compiler != xyes; then + CFLAGS="${CFLAGS} -fexceptions -Wall -Wsign-compare" +- LIBCRTS="-lgcc" ++ LIBCRTS="-lgcc_s" + fi + AC_MSG_RESULT([$intel_compiler]) + +-- +2.3.2 +
meta/recipes-support/libunwind/libunwind_1.1.bb +1 -0
@@ -4,6 +4,7 @@ SRC_URI += "\ file://Support-building-with-older-compilers.patch \ file://AArch64-port.patch \ file://Fix-test-case-link-failure-on-PowerPC-systems-with-Altivec.patch \ + file://Link-libunwind-to-libgcc_s-rather-than-libgcc.patch \ " SRC_URI[md5sum] = "fb4ea2f6fbbe45bf032cd36e586883ce"
Signature · 1 line
2.3.1