mirror of
https://git.proxmox.com/git/llvm-toolchain
synced 2025-06-14 04:22:54 +00:00
Merge remote-tracking branch 'origin/6.0' into snapshot
This commit is contained in:
Sylvestre Ledru
commit
1bd9b4aa72
95
debian/README
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95
debian/README
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@ -0,0 +1,95 @@
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Organization of the repository
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==============================
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The debian package for each LLVM point release is maintained as a git branch.
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For example, the 4.0 release lives at in the "4.0" branch.
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The current snapshot release is maintained in the "snapshot" branch.
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The easiest way to get all branches is probably to have one
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clone per version:
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for f in 4.0 5.0 6.0 snapshot; do
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git clone git@salsa.debian.org:pkg-llvm-team/llvm-toolchain.git -b $f $f
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done
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Steps for manually building a snapshot release
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==============================================
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1) Retrieve the latest snapshot and create original tarballs.
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Run the orig-tar.sh script,
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$ sh snapshot/debian/orig-tar.sh
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which will retrieve the latest version for each LLVM subproject (llvm,
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clang, lldb, etc.) from the main development (upstream SVN). and repack it
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as a set of tarballs.
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2) Unpack the original tarballs and apply quilt debian patches.
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From the branches/ directory run the unpack.sh script,
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$ sh unpack.sh
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which will unpack the source tree inside a new directory such as
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branches/llvm-toolchain-snapshot_3.9~svn268942. Depending on the current
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snapshot version number and svn release, the directory name will be
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different.
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Quilt patches will then be applied.
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3) Build the binary packages using,
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$ fakeroot debian/rules binary
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When debugging, successive builds can be recompiled faster by using tools such
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as ccache (PATH=/usr/lib/ccache:$PATH fakeroot debian/rules binary).
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Retrieving a specific branch or release candidate with orig-tar.sh
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==================================================================
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When using orig-tar.sh, if you need to retrieve a specific branch, you can pass
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the branch name as the first argument. For example, to get the 4.0 release
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branch at
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http://llvm.org/svn/llvm-project/{llvm,...}/branches/release_40
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you should use,
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$ sh 4.0/debian/orig-tar.sh release_40
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To retrieve a specific release candidate, you can pass the branch name as the
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first argument, and the tag rc number as the second argument. For example, to
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get the 4.0.1 release candidate rc3 at
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http://llvm.org/svn/llvm-project/{llvm,...}/tags/RELEASE_401/rc3
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you should use,
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$ sh 4.0/debian/orig-tar.sh RELEASE_401 rc3 4.0.1
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Additional maintainer scripts
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=============================
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The script qualify-clang.sh that is found at the git debian/ directory
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should be used to quickly test a newly built package. It runs a short
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set of sanity-check tests and regression tests.
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The script releases/snapshot/debian/prepare-new-release.sh is used when
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preparing a new point release. It automatically replaces version numbers
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in various files of the package.
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Change in major upstream version
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================================
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TODO update with the git commands
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$ svn copy snapshot VERSION
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$ svn commit -m "VERSION branched" VERSION
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$ cd VERSION
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$ sed -i -e '0,/llvm-toolchain-snapshot/s/llvm-toolchain-snapshot/llvm-toolchain-VERSION/' debian/changelog debian/control
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$ svn commit -m "snapshot => VERSION"
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$ cd ../snapshot
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$ emacs debian/prepare-new-release.sh
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# Change the version
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$ bash debian/prepare-new-release.sh
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$ svn commit -m "new snapshot release"
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Now, try build build it.
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250
debian/qualify-clang.sh
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250
debian/qualify-clang.sh
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#!/bin/sh
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# Stop at the first error
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set -e
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VERSION=6.0
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if test ! -f /usr/bin/llvm-config-$VERSION; then
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echo "Install llvm-$VERSION & llvm-$VERSION-dev"
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exit 1
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fi
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llvm-config-$VERSION --link-shared --libs &> /dev/null
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echo '#include <stdlib.h>
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int main() {
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char *x = (char*)malloc(10 * sizeof(char*));
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free(x);
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return x[5];
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}
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' > foo.c
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clang-$VERSION -o foo -fsanitize=address -O1 -fno-omit-frame-pointer -g foo.c
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if ! ./foo 2>&1 | grep -q heap-use-after-free ; then
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echo "sanitize=address is failing"
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exit 42
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fi
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echo 'int main() {return 0;}' > foo.c
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clang-$VERSION foo.c
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echo '#include <stddef.h>' > x.c
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clang-$VERSION -c x.c
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echo "#include <fenv.h>" > x.cc
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NBLINES=$(clang++-$VERSION -P -E x.cc|wc -l)
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if test $NBLINES -lt 100; then
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echo "Error: more than 100 lines should be returned"
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exit 42
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fi
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echo '#include <emmintrin.h>' > x.cc
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clang++-$VERSION -c x.cc
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echo '
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#include <string.h>
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int
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main ()
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{
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(void) strcat;
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return 0;
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}' > x.c
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clang-$VERSION -c x.c
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echo '#include <errno.h>
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int main() {} ' > x.c
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clang-$VERSION x.c
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echo '#include <chrono>
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int main() { }' > x.cpp
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clang++-$VERSION -std=c++11 x.cpp
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echo '#include <stdio.h>
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int main() {
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if (1==1) {
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printf("true");
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}else{
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printf("false");
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return 42;
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}
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return 0;}' > foo.c
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clang-$VERSION --coverage foo.c -o foo
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./foo > /dev/null
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if test ! -f foo.gcno; then
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echo "Coverage failed";
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fi
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echo "#include <iterator>" > foo.cpp
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clang++-$VERSION -c foo.cpp
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echo '#include <stdio.h>
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int main() {
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if (1==1) {
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printf("true");
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}else{
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printf("false");
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return 42;
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}
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return 0;}' > foo.c
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rm foo
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if test ! -f /usr/lib/llvm-$VERSION/bin/../lib/LLVMgold.so; then
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echo "Install llvm-$VERSION-dev"
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exit 1
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fi
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clang-$VERSION -flto foo.c -o foo
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./foo > /dev/null
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clang-$VERSION -fuse-ld=gold foo.c -o foo
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./foo > /dev/null
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# test thinlto
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echo "int foo(void) { return 0; }"> foo.c
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echo "int foo(void); int main() {foo(); return 0;}">main.c
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clang-$VERSION -flto=thin -O2 foo.c main.c -o foo
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./foo > /dev/null
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if test ! -f /usr/bin/lld-$VERSION; then
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echo "Install lld-$VERSION"
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exit 1
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fi
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clang-$VERSION -fuse-ld=lld -O2 foo.c main.c -o foo
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./foo > /dev/null
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cat << EOF > test_fuzzer.cc
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#include <stdint.h>
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#include <stddef.h>
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extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
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if (size > 0 && data[0] == 'H')
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if (size > 1 && data[1] == 'I')
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if (size > 2 && data[2] == '!')
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__builtin_trap();
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return 0;
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}
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EOF
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if test ! -f /usr/lib/llvm-$VERSION/lib/libFuzzer.a; then
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echo "Install libfuzzer-$VERSION-dev";
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exit -1;
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fi
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clang++-$VERSION -fsanitize=address -fsanitize-coverage=edge test_fuzzer.cc /usr/lib/llvm-$VERSION/lib/libFuzzer.a
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if ! ./a.out 2>&1 | grep -q -E "(Test unit written|PreferSmall)"; then
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echo "fuzzer"
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exit 42
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fi
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clang-$VERSION -fsanitize=fuzzer test_fuzzer.cc
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if ! ./a.out 2>&1 | grep -q -E "(Test unit written|PreferSmall)"; then
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echo "fuzzer"
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exit 42
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fi
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echo 'int main() {
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int a=0;
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return a;
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}
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' > foo.c
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clang++-$VERSION -g -o bar foo.c
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echo "b main
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run
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bt
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quit" > lldb-cmd.txt
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if test ! -f /usr/bin/lldb-$VERSION; then
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echo "Install lldb-$VERSION";
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exit -1;
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fi
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lldb-$VERSION -s lldb-cmd.txt bar
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echo '
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#include <vector>
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int main (void)
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{ std::vector<int> a;
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a.push_back (0);
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}
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' > o.cpp
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clang++-$VERSION -g -o o o.cpp
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echo 'target create "./o"
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b main
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r
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n
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p a
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quit' > lldb-cmd.txt
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lldb-$VERSION -s lldb-cmd.txt ./o
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echo "int main() { return 1; }" > foo.c
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clang-$VERSION -fsanitize=efficiency-working-set -o foo foo.c
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./foo > /dev/null || true
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CLANG=clang-$VERSION
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#command -v "$CLANG" 1>/dev/null 2>/dev/null || { printf "Usage:\n%s CLANGEXE [ARGS]\n" "$0" 1>&2; exit 1; }
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#shift
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TEMPDIR=$(mktemp -d); trap "rm -rf \"$TEMPDIR\"" 0
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cat > "$TEMPDIR/test.c" <<EOF
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#include <stdlib.h>
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#include <stdio.h>
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int main ()
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{
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#if __has_feature(address_sanitizer)
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puts("address_sanitizer");
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#endif
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#if __has_feature(thread_sanitizer)
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puts("thread_sanitizer");
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#endif
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#if __has_feature(memory_sanitizer)
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puts("memory_sanitizer");
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#endif
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#if __has_feature(undefined_sanitizer)
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puts("undefined_sanitizer");
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#endif
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#if __has_feature(dataflow_sanitizer)
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puts("dataflow_sanitizer");
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#endif
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#if __has_feature(efficiency_sanitizer)
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puts("efficiency_sanitizer");
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#endif
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printf("Ok\n");
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return EXIT_SUCCESS;
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}
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EOF
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# only for AMD64 for now
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# many sanitizers only work on AMD64
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# x32 programs need to be enabled in the kernel bootparams for debian
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# (https://wiki.debian.org/X32Port)
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#
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# SYSTEM should iterate multiple targets (eg. x86_64-unknown-none-gnu for embedded)
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# MARCH should iterate the library architectures via flags
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# LIB should iterate the different libraries
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for SYSTEM in ""; do
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for MARCH in -m64 -m32 -mx32 "-m32 -march=i686"; do
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for LIB in --rtlib=compiler-rt -fsanitize=address -fsanitize=thread -fsanitize=memory -fsanitize=undefined -fsanitize=dataflow; do # -fsanitize=efficiency-working-set; do
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if test "$MARCH" == "-m32" -o "$MARCH" == "-mx32"; then
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if test $LIB == "-fsanitize=thread" -o $LIB == "-fsanitize=memory" -o $LIB == "-fsanitize=dataflow" -o $LIB == "-fsanitize=address" -o $LIB == "-fsanitize=undefined"; then
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echo "Skip $MARCH / $LIB";
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continue
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fi
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fi
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if test "$MARCH" == "-m32 -march=i686"; then
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if test $LIB == "-fsanitize=memory" -o $LIB == "-fsanitize=thread" -o $LIB == "-fsanitize=dataflow"; then
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echo "Skip $MARCH / $LIB";
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continue
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fi
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fi
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XARGS="$SYSTEM $MARCH $LIB"
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printf "\nTest: clang %s\n" "$XARGS"
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rm -f "$TEMPDIR/test"
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"$CLANG" $XARGS -o "$TEMPDIR/test" "$@" "$TEMPDIR/test.c"
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[ ! -e "$TEMPDIR/test" ] || { "$TEMPDIR/test" || printf 'Error\n'; }
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||||
done
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||||
done
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||||
done
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||||
echo "#include <objc/objc.h>" > foo.m
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||||
clang-$VERSION -c foo.m
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||||
|
||||
echo "Completed"
|
||||
|
||||
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