mirror of
https://git.proxmox.com/git/llvm-toolchain
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Merge branch '15-wasm' into '15'
Better support for the WebAssembly (wasm32/wasm64) targets See merge request pkg-llvm-team/llvm-toolchain!96
This commit is contained in:
Sylvestre Ledru
commit
72a2374787
12
debian/changelog
vendored
12
debian/changelog
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@ -1,3 +1,15 @@
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llvm-toolchain-15 (1:15.0.2-2~exp2) UNRELEASED; urgency=medium
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* Add better support for the WebAssembly (wasm32/wasm64) targets:
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- Ship compiler-rt for the wasm32 and wasm64 targets. (Closes: #1010932)
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- Add patch wasm-compiler-rt-default.diff to default to compiler-rt for
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these targets. libgcc does not currently exist for WebAssembly in neither
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Debian nor upstream, and therefore compiler-rt is the only option.
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- Add patch wasm-sysroot-usr.diff to support a system-installed (i.e. shipped
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in /usr) wasi-libc. (Closes: #1020746)
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-- Faidon Liambotis <paravoid@debian.org> Fri, 07 Oct 2022 16:44:57 +0300
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llvm-toolchain-15 (1:15.0.2-2~exp1) experimental; urgency=medium
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* Ship bolt
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2
debian/patches/series
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2
debian/patches/series
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@ -138,6 +138,8 @@ llvm-runtimes-builtins-build-check.diff
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compilerrt-builtins-arch-fix-armhf.diff
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compilerrt-build-scudo-standalone-option.diff
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wasm-ld-path.diff
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wasm-compiler-rt-default.diff
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wasm-sysroot-usr.diff
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issue-54242.diff
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revert-update-doc.diff
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unwind-force-pthread-dl.diff
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31
debian/patches/wasm-compiler-rt-default.diff
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Normal file
31
debian/patches/wasm-compiler-rt-default.diff
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Normal file
@ -0,0 +1,31 @@
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--- a/clang/lib/Driver/ToolChains/WebAssembly.cpp
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+++ b/clang/lib/Driver/ToolChains/WebAssembly.cpp
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@@ -369,6 +369,18 @@ ToolChain::RuntimeLibType WebAssembly::G
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return ToolChain::RLT_CompilerRT;
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}
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+ToolChain::RuntimeLibType WebAssembly::GetRuntimeLibType(
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+ const ArgList &Args) const {
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+ if (Arg *A = Args.getLastArg(options::OPT_rtlib_EQ)) {
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+ StringRef Value = A->getValue();
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+ if (Value != "compiler-rt")
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+ getDriver().Diag(clang::diag::err_drv_unsupported_rtlib_for_platform)
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+ << Value << "WebAssembly";
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+ }
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+
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+ return ToolChain::RLT_CompilerRT;
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+}
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+
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ToolChain::CXXStdlibType
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WebAssembly::GetCXXStdlibType(const ArgList &Args) const {
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if (Arg *A = Args.getLastArg(options::OPT_stdlib_EQ)) {
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--- a/clang/lib/Driver/ToolChains/WebAssembly.h
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+++ b/clang/lib/Driver/ToolChains/WebAssembly.h
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@@ -61,6 +61,7 @@ private:
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llvm::opt::ArgStringList &CC1Args,
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Action::OffloadKind DeviceOffloadKind) const override;
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RuntimeLibType GetDefaultRuntimeLibType() const override;
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+ RuntimeLibType GetRuntimeLibType(const llvm::opt::ArgList &Args) const override;
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CXXStdlibType GetCXXStdlibType(const llvm::opt::ArgList &Args) const override;
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void
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AddClangSystemIncludeArgs(const llvm::opt::ArgList &DriverArgs,
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62
debian/patches/wasm-sysroot-usr.diff
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Normal file
62
debian/patches/wasm-sysroot-usr.diff
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Normal file
@ -0,0 +1,62 @@
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--- a/clang/lib/Driver/ToolChains/WebAssembly.cpp
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+++ b/clang/lib/Driver/ToolChains/WebAssembly.cpp
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@@ -174,7 +174,7 @@ WebAssembly::WebAssembly(const Driver &D
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getProgramPaths().push_back(getDriver().getInstalledDir());
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- auto SysRoot = getDriver().SysRoot;
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+ std::string SysRoot = computeSysRoot();
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if (getTriple().getOS() == llvm::Triple::UnknownOS) {
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// Theoretically an "unknown" OS should mean no standard libraries, however
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// it could also mean that a custom set of libraries is in use, so just add
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@@ -402,6 +402,7 @@ void WebAssembly::AddClangSystemIncludeA
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return;
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const Driver &D = getDriver();
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+ std::string SysRoot = computeSysRoot();
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if (!DriverArgs.hasArg(options::OPT_nobuiltininc)) {
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SmallString<128> P(D.ResourceDir);
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@@ -427,10 +428,10 @@ void WebAssembly::AddClangSystemIncludeA
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if (getTriple().getOS() != llvm::Triple::UnknownOS) {
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const std::string MultiarchTriple =
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- getMultiarchTriple(D, getTriple(), D.SysRoot);
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- addSystemInclude(DriverArgs, CC1Args, D.SysRoot + "/include/" + MultiarchTriple);
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+ getMultiarchTriple(D, getTriple(), SysRoot);
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+ addSystemInclude(DriverArgs, CC1Args, SysRoot + "/include/" + MultiarchTriple);
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}
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- addSystemInclude(DriverArgs, CC1Args, D.SysRoot + "/include");
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+ addSystemInclude(DriverArgs, CC1Args, SysRoot + "/include");
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}
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void WebAssembly::AddClangCXXStdlibIncludeArgs(const ArgList &DriverArgs,
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@@ -478,6 +479,17 @@ Tool *WebAssembly::buildLinker() const {
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return new tools::wasm::Linker(*this);
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}
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+std::string WebAssembly::computeSysRoot() const {
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+ if (!getDriver().SysRoot.empty())
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+ return getDriver().SysRoot;
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+
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+ std::string Path = "/usr";
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+ if (getVFS().exists(Path))
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+ return Path;
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+
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+ return std::string();
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+}
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+
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void WebAssembly::addLibCxxIncludePaths(
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const llvm::opt::ArgList &DriverArgs,
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llvm::opt::ArgStringList &CC1Args) const {
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--- a/clang/lib/Driver/ToolChains/WebAssembly.h
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+++ b/clang/lib/Driver/ToolChains/WebAssembly.h
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@@ -89,6 +89,8 @@ private:
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llvm::opt::ArgStringList &CC1Args) const;
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void addLibStdCXXIncludePaths(const llvm::opt::ArgList &DriverArgs,
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llvm::opt::ArgStringList &CC1Args) const;
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+
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+ std::string computeSysRoot() const override;
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};
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} // end namespace toolchains
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45
debian/rules
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45
debian/rules
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@ -27,7 +27,7 @@ DEBIAN_REVISION := $(shell dpkg-parsechangelog | sed -rne "s,^Version: 1:([0-9.
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ifneq (,$(filter parallel=%,$(subst $(COMMA), ,$(DEB_BUILD_OPTIONS))))
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NJOBS := -j $(subst parallel=,,$(filter parallel=%,$(subst $(COMMA), ,$(DEB_BUILD_OPTIONS))))
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else
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NJOBS := $(shell nproc)
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NJOBS := -j $(shell nproc)
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endif
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VENDOR=$(shell lsb_release -is)
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@ -713,7 +713,38 @@ else
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endif
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touch $@
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override_dh_auto_build: debian-full-build debian-libfuzzer-build debian-libclc-build
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debian-rtlib-wasm-build:
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echo "Using cmake: $(CMAKE_BIN)"
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for build in wasm32 wasm64; do \
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mkdir -p build-compiler-rt-$$build; \
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$(CMAKE_BIN) -B build-compiler-rt-$$build -S compiler-rt/lib/builtins/ \
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-G Ninja \
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-DCMAKE_C_COMPILER_TARGET=$$build-unknown-unknown \
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-DCMAKE_CXX_COMPILER_TARGET=$$build-unknown-unknown \
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-DCMAKE_ASM_COMPILER_TARGET=$$build-unknown-unknown \
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-DCMAKE_C_COMPILER=$(STAGE_2_BIN_DIR)/clang \
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-DCMAKE_CXX_COMPILER=$(STAGE_2_BIN_DIR)/clang++ \
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-DCMAKE_C_FLAGS="$(opt_flags) $(STAGE_2_CFLAGS)" \
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-DCMAKE_CXX_FLAGS="$(opt_flags) $(STAGE_2_CXXFLAGS)" \
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-DCMAKE_SHARED_LINKER_FLAGS="$(STAGE_2_LDFLAGS) -L$(STAGE_2_LIB_DIR)" \
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-DCMAKE_MODULE_LINKER_FLAGS="$(STAGE_2_LDFLAGS) -L$(STAGE_2_LIB_DIR)" \
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-DCMAKE_EXE_LINKER_FLAGS="$(STAGE_2_LDFLAGS) -L$(STAGE_2_LIB_DIR)" \
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-DCMAKE_INSTALL_PREFIX=/usr/lib/llvm-$(LLVM_VERSION)/lib/clang/$(LLVM_VERSION_FULL) \
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-DCMAKE_INSTALL_DATADIR=lib \
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-DCMAKE_INSTALL_INCLUDEDIR=include \
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-DLLVM_CONFIG_PATH=$(STAGE_2_BIN_DIR)/llvm-config \
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-DCOMPILER_RT_STANDALONE_BUILD=ON \
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-DCOMPILER_RT_BAREMETAL_BUILD=ON \
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-DCOMPILER_RT_INCLUDE_TESTS=OFF \
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-DCOMPILER_RT_USE_LIBCXX=OFF \
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-DCOMPILER_RT_USE_BUILTINS_LIBRARY=ON \
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-DCOMPILER_RT_DEFAULT_TARGET_TRIPLE=$$build-unknown-unknown \
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-DCOMPILER_RT_OS_DIR=wasi; \
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ninja -C build-compiler-rt-$$build $(NJOBS) $(VERBOSE); \
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done
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touch $@
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override_dh_auto_build: debian-full-build debian-libfuzzer-build debian-libclc-build debian-rtlib-wasm-build
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override_dh_prep: build_doc
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dh_prep
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@ -860,6 +891,9 @@ ifeq ($(LLVM_SPIRV_INSTALLED),yes)
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DESTDIR=$(DEB_INST) ninja $(VERBOSE) -C libclc/build install
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endif
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DESTDIR=$(DEB_INST) ninja $(VERBOSE) -C build-compiler-rt-wasm32 install
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DESTDIR=$(DEB_INST) ninja $(VERBOSE) -C build-compiler-rt-wasm64 install
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# Rename binaries
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mkdir -p $(DEB_INST)/usr/bin/
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cd $(DEB_INST)/usr/bin/; \
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@ -1007,7 +1041,9 @@ ifeq ($(shell dpkg --compare-versions $(shell dpkg-query -W -f '$${Version}' bin
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: # for some reasons, the +x might be removed
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chmod -f +x $(CURDIR)/debian/*/usr/lib/llvm-$(LLVM_VERSION)/bin/* || true
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else
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dh_strip -a -v
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# GNU strip doesn't recognize WebAssembly binaries, and actually corrupts them.
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# llvm-strip (as of 15.0.2) fails with --strip-debug (but works with --strip-all)
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dh_strip -a -v -Xlibclang_rt.builtins-wasm32.a -Xlibclang_rt.builtins-wasm64.a
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endif
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override_dh_install:
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@ -1143,6 +1179,7 @@ override_dh_auto_clean:
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rm -f $(CURDIR)/clang/tools/clang-format/clang-format-diff-$(LLVM_VERSION)
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rm -f $(CURDIR)/clang/tools/clang-format/clang-format-$(LLVM_VERSION).py
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rm -rf libclc/build
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rm -rf build-compiler-rt-wasm32 build-compiler-rt-wasm64
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if test -f lld/docs/ld.lld-$(LLVM_VERSION).1; then \
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mv lld/docs/ld.lld-$(LLVM_VERSION).1 lld/docs/ld.lld.1; \
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fi
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@ -1158,4 +1195,4 @@ override_dh_auto_clean:
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: # remove extra stamps
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rm -f debian-*-build
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.PHONY: override_dh_strip preconfigure debian-full-build debian-libfuzzer-build debian-libclc-build
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.PHONY: override_dh_strip preconfigure debian-full-build debian-libfuzzer-build debian-libclc-build debian-rtlib-wasm-build
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