llvm-toolchain/debian/patches/wasm/wasm-sysroot-usr.diff
2022-10-07 17:09:28 +02:00

73 lines
2.8 KiB
Diff

Index: llvm-toolchain-14-14.0.6/clang/lib/Driver/ToolChains/WebAssembly.cpp
===================================================================
--- llvm-toolchain-14-14.0.6.orig/clang/lib/Driver/ToolChains/WebAssembly.cpp
+++ llvm-toolchain-14-14.0.6/clang/lib/Driver/ToolChains/WebAssembly.cpp
@@ -16,6 +16,7 @@
#include "clang/Driver/Options.h"
#include "llvm/Support/FileSystem.h"
#include "llvm/Support/Path.h"
+#include "llvm/Support/VirtualFileSystem.h"
#include "llvm/Option/ArgList.h"
using namespace clang::driver;
@@ -172,7 +173,7 @@ WebAssembly::WebAssembly(const Driver &D
getProgramPaths().push_back(getDriver().getInstalledDir());
- auto SysRoot = getDriver().SysRoot;
+ std::string SysRoot = computeSysRoot();
if (getTriple().getOS() == llvm::Triple::UnknownOS) {
// Theoretically an "unknown" OS should mean no standard libraries, however
// it could also mean that a custom set of libraries is in use, so just add
@@ -396,6 +397,7 @@ void WebAssembly::AddClangSystemIncludeA
return;
const Driver &D = getDriver();
+ std::string SysRoot = computeSysRoot();
if (!DriverArgs.hasArg(options::OPT_nobuiltininc)) {
SmallString<128> P(D.ResourceDir);
@@ -421,10 +423,10 @@ void WebAssembly::AddClangSystemIncludeA
if (getTriple().getOS() != llvm::Triple::UnknownOS) {
const std::string MultiarchTriple =
- getMultiarchTriple(D, getTriple(), D.SysRoot);
- addSystemInclude(DriverArgs, CC1Args, D.SysRoot + "/include/" + MultiarchTriple);
+ getMultiarchTriple(D, getTriple(), SysRoot);
+ addSystemInclude(DriverArgs, CC1Args, SysRoot + "/include/" + MultiarchTriple);
}
- addSystemInclude(DriverArgs, CC1Args, D.SysRoot + "/include");
+ addSystemInclude(DriverArgs, CC1Args, SysRoot + "/include");
}
void WebAssembly::AddClangCXXStdlibIncludeArgs(const ArgList &DriverArgs,
@@ -467,3 +469,15 @@ SanitizerMask WebAssembly::getSupportedS
Tool *WebAssembly::buildLinker() const {
return new tools::wasm::Linker(*this);
}
+
+std::string WebAssembly::computeSysRoot() const {
+ if (!getDriver().SysRoot.empty())
+ return getDriver().SysRoot;
+
+ std::string Path = "/usr";
+ if (getVFS().exists(Path))
+ return Path;
+
+ return std::string();
+}
+
Index: llvm-toolchain-14-14.0.6/clang/lib/Driver/ToolChains/WebAssembly.h
===================================================================
--- llvm-toolchain-14-14.0.6.orig/clang/lib/Driver/ToolChains/WebAssembly.h
+++ llvm-toolchain-14-14.0.6/clang/lib/Driver/ToolChains/WebAssembly.h
@@ -80,6 +80,8 @@ private:
std::string getMultiarchTriple(const Driver &D,
const llvm::Triple &TargetTriple,
StringRef SysRoot) const override;
+
+ std::string computeSysRoot() const override;
};
} // end namespace toolchains