https://sourceware.org/bugzilla/show_bug.cgi?id=25057
Bug ID: 25057
Summary: Fails to build binutils-2.31.1 using clang-8.0.0
Product: binutils
Version: unspecified
Status: NEW
Severity: normal
Priority: P2
Component: binutils
Assignee: unassigned at sourceware dot org
Reporter: wcohen at redhat dot com
Target Milestone: ---
When attempting to build binutils-2.31.1 rpm on fedora 30 using the clang
compiler some of the code fails to build. Steps to reproduce:
$ rpm -Uvh binutils-2.31.1.fc30.src.rpm
$ cd rpmbuild/SPECS
$ export CC=clang
$ export CXX=clang++
$ rpmbuild --define "%optflags -O2 -g -pipe -Wp,-D_FORTIFY_SOURCE=2
-Wp,-D_GLIBCXX_ASSERTIONS -fexceptions -fstack-protector-strong
-grecord-gcc-switches -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1
-specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -m64 -mtune=generic
-fasynchronous-unwind-tables -fcf-protection" --define "%dist .fc30llvm" -bi
binutils.spec
It compiles a fair amount of code, but the build fails because of the following
errors:
x86_64.cc:1591:10: error: case value evaluates to 3221225473, which cannot be
narrowed to type 'int' [-Wc++11-narrowing]
case elfcpp::GNU_PROPERTY_X86_ISA_1_NEEDED:
^
x86_64.cc:1592:10: error: case value evaluates to 3221225474, which cannot be
narrowed to type 'int' [-Wc++11-narrowing]
case elfcpp::GNU_PROPERTY_X86_FEATURE_1_AND:
^
The definitions of these values set sign bit (0xc0000001 and 0xc0000002) and it
looks like clang doesn't like that.
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