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Build libLLVM.so first to avoid OOM errors

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Linking libLLVM.so takes a lot of memory and often causes OOM errors
on builders with low memory:cpu ratios..  By building libLLVM.so first,
we can ensure that when libLLVM.so is being linked, there are no other
build threads running which reduces the chances of an OOM error.
This commit is contained in:
Tom Stellard 2019-09-30 20:49:55 +00:00
parent 9d70f3b6d9
commit acf22be74c
1 changed files with 10 additions and 3 deletions
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13
llvm.spec
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@ -14,7 +14,7 @@
%global min_ver 0 %global min_ver 0
%global patch_ver 0 %global patch_ver 0
#%%global rc_ver 3 #%%global rc_ver 3
%global baserelease 2 %global baserelease 3
%if %{with compat_build} %if %{with compat_build}
@ -164,7 +164,7 @@ pathfix.py -i %{__python3} -pn \
mkdir -p _build mkdir -p _build
cd _build cd _build
%ifarch s390 s390x %{arm} %ix86 %ifarch s390 %{arm} %ix86
# Decrease debuginfo verbosity to reduce memory consumption during final library linking # Decrease debuginfo verbosity to reduce memory consumption during final library linking
%global optflags %(echo %{optflags} | sed 's/-g /-g1 /') %global optflags %(echo %{optflags} | sed 's/-g /-g1 /')
%endif %endif
@ -180,7 +180,7 @@ cd _build
-DLLVM_PARALLEL_LINK_JOBS=1 \ -DLLVM_PARALLEL_LINK_JOBS=1 \
-DCMAKE_BUILD_TYPE=RelWithDebInfo \ -DCMAKE_BUILD_TYPE=RelWithDebInfo \
-DCMAKE_INSTALL_RPATH=";" \ -DCMAKE_INSTALL_RPATH=";" \
%ifarch s390 s390x %{arm} %ix86 %ifarch s390 %{arm} %ix86
-DCMAKE_C_FLAGS_RELWITHDEBINFO="%{optflags} -DNDEBUG" \ -DCMAKE_C_FLAGS_RELWITHDEBINFO="%{optflags} -DNDEBUG" \
-DCMAKE_CXX_FLAGS_RELWITHDEBINFO="%{optflags} -DNDEBUG" \ -DCMAKE_CXX_FLAGS_RELWITHDEBINFO="%{optflags} -DNDEBUG" \
%endif %endif
@ -239,6 +239,10 @@ cd _build
-DLLVM_INSTALL_SPHINX_HTML_DIR=%{_pkgdocdir}/html \ -DLLVM_INSTALL_SPHINX_HTML_DIR=%{_pkgdocdir}/html \
-DSPHINX_EXECUTABLE=%{_bindir}/sphinx-build-3 -DSPHINX_EXECUTABLE=%{_bindir}/sphinx-build-3
# Build libLLVM.so first. This ensures that when libLLVM.so is linking, there
# are no other compile jobs running. This will help reduce OOM errors on the
# builders without having to artificially limit the number of concurrent jobs.
%ninja_build LLVM
%ninja_build %ninja_build
%install %install
@ -476,6 +480,9 @@ fi
%endif %endif
%changelog %changelog
* Mon Sep 30 2019 Tom Stellard <tstellar@redhat.com> - 9.0.0-3
- Build libLLVM.so first to avoid OOM errors
* Fri Sep 27 2019 Tom Stellard <tstellar@redhat.com> - 9.0.0-2 * Fri Sep 27 2019 Tom Stellard <tstellar@redhat.com> - 9.0.0-2
- Remove unneeded BuildRequires: libstdc++-static - Remove unneeded BuildRequires: libstdc++-static