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[WebAssembly] Modernize include path handling

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Move include path construction from
InitHeaderSearch::AddDefaultIncludePaths in the Driver which appears
to be the more modern/correct way of doing things.

Differential Revision: https://reviews.llvm.org/D63030

llvm-svn: 363241
This commit is contained in:
Sam Clegg 2019-06-13 09:42:43 +00:00
parent 51c2fa0e2a
commit 818dd8666a
3 changed files with 45 additions and 8 deletions
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43
clang/lib/Driver/ToolChains/WebAssembly.cpp
View File

@ -8,6 +8,7 @@
#include "WebAssembly.h"
#include "CommonArgs.h"
#include "clang/Config/config.h"
#include "clang/Driver/Compilation.h"
#include "clang/Driver/Driver.h"
#include "clang/Driver/DriverDiagnostic.h"
@ -170,14 +171,39 @@ WebAssembly::GetCXXStdlibType(const ArgList &Args) const {
void WebAssembly::AddClangSystemIncludeArgs(const ArgList &DriverArgs,
ArgStringList &CC1Args) const {
if (!DriverArgs.hasArg(options::OPT_nostdinc)) {
if (getTriple().getOS() != llvm::Triple::UnknownOS) {
const std::string MultiarchTriple =
getMultiarchTriple(getDriver(), getTriple(), getDriver().SysRoot);
addSystemInclude(DriverArgs, CC1Args, getDriver().SysRoot + "/include/" + MultiarchTriple);
}
addSystemInclude(DriverArgs, CC1Args, getDriver().SysRoot + "/include");
if (DriverArgs.hasArg(clang::driver::options::OPT_nostdinc))
return;
const Driver &D = getDriver();
if (!DriverArgs.hasArg(options::OPT_nobuiltininc)) {
SmallString<128> P(D.ResourceDir);
llvm::sys::path::append(P, "include");
addSystemInclude(DriverArgs, CC1Args, P);
}
if (DriverArgs.hasArg(options::OPT_nostdlibinc))
return;
// Check for configure-time C include directories.
StringRef CIncludeDirs(C_INCLUDE_DIRS);
if (CIncludeDirs != "") {
SmallVector<StringRef, 5> dirs;
CIncludeDirs.split(dirs, ":");
for (StringRef dir : dirs) {
StringRef Prefix =
llvm::sys::path::is_absolute(dir) ? StringRef(D.SysRoot) : "";
addExternCSystemInclude(DriverArgs, CC1Args, Prefix + dir);
}
return;
}
if (getTriple().getOS() != llvm::Triple::UnknownOS) {
const std::string MultiarchTriple =
getMultiarchTriple(D, getTriple(), D.SysRoot);
addSystemInclude(DriverArgs, CC1Args, D.SysRoot + "/include/" + MultiarchTriple);
}
addSystemInclude(DriverArgs, CC1Args, D.SysRoot + "/include");
}
void WebAssembly::AddClangCXXStdlibIncludeArgs(const ArgList &DriverArgs,
@ -188,7 +214,8 @@ void WebAssembly::AddClangCXXStdlibIncludeArgs(const ArgList &DriverArgs,
const std::string MultiarchTriple =
getMultiarchTriple(getDriver(), getTriple(), getDriver().SysRoot);
addSystemInclude(DriverArgs, CC1Args,
getDriver().SysRoot + "/include/" + MultiarchTriple + "/c++/v1");
getDriver().SysRoot + "/include/" + MultiarchTriple +
"/c++/v1");
}
addSystemInclude(DriverArgs, CC1Args,
getDriver().SysRoot + "/include/c++/v1");

8
clang/lib/Frontend/InitHeaderSearch.cpp
View File

@ -414,9 +414,11 @@ void InitHeaderSearch::AddDefaultIncludePaths(const LangOptions &Lang,
default:
break; // Everything else continues to use this routine's logic.
case llvm::Triple::Emscripten:
case llvm::Triple::Linux:
case llvm::Triple::Hurd:
case llvm::Triple::Solaris:
case llvm::Triple::WASI:
return;
case llvm::Triple::Win32:
@ -424,6 +426,12 @@ void InitHeaderSearch::AddDefaultIncludePaths(const LangOptions &Lang,
triple.isOSBinFormatMachO())
return;
break;
case llvm::Triple::UnknownOS:
if (triple.getArch() == llvm::Triple::wasm32 ||
triple.getArch() == llvm::Triple::wasm64)
return;
break;
}
// All header search logic is handled in the Driver for Darwin.

2
clang/test/Driver/wasm-toolchain.cpp
View File

@ -45,8 +45,10 @@
// RUN: %clangxx -### -no-canonical-prefixes -target wasm32-wasi --sysroot=/foo --stdlib=c++ %s 2>&1 \
// RUN: | FileCheck -check-prefix=COMPILE %s
// COMPILE: clang{{.*}}" "-cc1"
// COMPILE: "-resource-dir" "[[RESOURCE_DIR:[^"]*]]"
// COMPILE: "-isysroot" "/foo"
// COMPILE: "-internal-isystem" "/foo/include/wasm32-wasi/c++/v1"
// COMPILE: "-internal-isystem" "/foo/include/c++/v1"
// COMPILE: "-internal-isystem" "[[RESOURCE_DIR]]{{(/|\\\\)}}include"
// COMPILE: "-internal-isystem" "/foo/include/wasm32-wasi"
// COMPILE: "-internal-isystem" "/foo/include"