[PATCH] D39354: [WebAssembly] Add crt1.o when calling lld
Sam Clegg via Phabricator via cfe-commits
cfe-commits at lists.llvm.org
Thu Oct 26 18:35:47 PDT 2017
sbc100 updated this revision to Diff 120529.
sbc100 added a comment.
- rebase
https://reviews.llvm.org/D39354
Files:
lib/Driver/ToolChain.cpp
lib/Driver/ToolChains/WebAssembly.cpp
test/Driver/wasm-toolchain.c
Index: test/Driver/wasm-toolchain.c
===================================================================
--- test/Driver/wasm-toolchain.c
+++ test/Driver/wasm-toolchain.c
@@ -27,10 +27,10 @@
// RUN: %clang -### -no-canonical-prefixes -target wasm32-unknown-unknown --sysroot=/foo %s 2>&1 | FileCheck -check-prefix=LINK %s
// LINK: clang{{.*}}" "-cc1" {{.*}} "-o" "[[temp:[^"]*]]"
-// LINK: lld{{.*}}" "-flavor" "wasm" "-L/foo/lib" "[[temp]]" "-allow-undefined-file" "wasm.syms" "-lc" "{{.*[/\\]}}libclang_rt.builtins-wasm32.a" "-o" "a.out"
+// LINK: lld{{.*}}" "-flavor" "wasm" "-L/foo/lib" "crt1.o" "[[temp]]" "-allow-undefined-file" "wasm.syms" "-lc" "{{.*[/\\]}}libclang_rt.builtins-wasm32.a" "-o" "a.out"
// A basic C link command-line with optimization.
// RUN: %clang -### -O2 -no-canonical-prefixes -target wasm32-unknown-unknown --sysroot=/foo %s 2>&1 | FileCheck -check-prefix=LINK_OPT %s
// LINK_OPT: clang{{.*}}" "-cc1" {{.*}} "-o" "[[temp:[^"]*]]"
-// LINK_OPT: lld{{.*}}" "-flavor" "wasm" "-L/foo/lib" "[[temp]]" "-allow-undefined-file" "wasm.syms" "-lc" "{{.*[/\\]}}libclang_rt.builtins-wasm32.a" "-o" "a.out"
+// LINK_OPT: lld{{.*}}" "-flavor" "wasm" "-L/foo/lib" "crt1.o" "[[temp]]" "-allow-undefined-file" "wasm.syms" "-lc" "{{.*[/\\]}}libclang_rt.builtins-wasm32.a" "-o" "a.out"
Index: lib/Driver/ToolChains/WebAssembly.cpp
===================================================================
--- lib/Driver/ToolChains/WebAssembly.cpp
+++ lib/Driver/ToolChains/WebAssembly.cpp
@@ -49,6 +49,9 @@
Args.AddAllArgs(CmdArgs, options::OPT_L);
ToolChain.AddFilePathLibArgs(Args, CmdArgs);
+ if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles))
+ CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crt1.o")));
+
AddLinkerInputs(ToolChain, Inputs, Args, CmdArgs, JA);
if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs)) {
Index: lib/Driver/ToolChain.cpp
===================================================================
--- lib/Driver/ToolChain.cpp
+++ lib/Driver/ToolChain.cpp
@@ -309,14 +309,12 @@
std::string ToolChain::getCompilerRTPath() const {
SmallString<128> Path(getDriver().ResourceDir);
- StringRef OSLibName;
- if (Triple.isOSFreeBSD())
- OSLibName = "freebsd";
- else if (Triple.isOSBinFormatWasm())
- OSLibName = "wasm";
- else
- OSLibName = getOS();
- llvm::sys::path::append(Path, "lib", OSLibName);
+ if (Triple.isOSUnknown()) {
+ llvm::sys::path::append(Path, "lib");
+ } else {
+ StringRef OSLibName = Triple.isOSFreeBSD() ? "freebsd" : getOS();
+ llvm::sys::path::append(Path, "lib", OSLibName);
+ }
return Path.str();
}
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