90 lines
3.9 KiB
Diff
90 lines
3.9 KiB
Diff
Clang attempts to guess file names based on the OS and distro (yes!),
|
|
but unfortunately, that doesn't work for us.
|
|
|
|
This patch makes it easy to insert libc's $libdir so that Clang passes the
|
|
correct absolute file name of crt1.o etc. to 'ld'. It also disables all
|
|
the distro-specific stuff and removes the hard-coded FHS directory names
|
|
to make sure Clang also works on non-Guix systems.
|
|
|
|
diff --git a/lib/Driver/ToolChains/Gnu.cpp b/lib/Driver/ToolChains/Gnu.cpp
|
|
--- a/lib/Driver/ToolChains/Gnu.cpp
|
|
+++ b/lib/Driver/ToolChains/Gnu.cpp
|
|
@@ -2797,7 +2797,7 @@ void Generic_GCC::AddMultilibPaths(const Driver &D,
|
|
// the cross. Note that GCC does include some of these directories in some
|
|
// configurations but this seems somewhere between questionable and simply
|
|
// a bug.
|
|
- if (StringRef(LibPath).startswith(SysRoot)) {
|
|
+ if (0) {
|
|
addPathIfExists(D, LibPath + "/" + MultiarchTriple, Paths);
|
|
addPathIfExists(D, LibPath + "/../" + OSLibDir, Paths);
|
|
}
|
|
@@ -2811,6 +2811,10 @@ void Generic_GCC::AddMultiarchPaths(const Driver &D,
|
|
// Try walking via the GCC triple path in case of biarch or multiarch GCC
|
|
// installations with strange symlinks.
|
|
if (GCCInstallation.isValid()) {
|
|
+
|
|
+// The following code would end up adding things like
|
|
+// "/usr/lib/x86_64-unknown-linux-gnu/../../lib64" to the search path.
|
|
+#if 0
|
|
addPathIfExists(D,
|
|
SysRoot + "/usr/lib/" + GCCInstallation.getTriple().str() +
|
|
"/../../" + OSLibDir,
|
|
@@ -2823,6 +2827,7 @@ void Generic_GCC::AddMultiarchPaths(const Driver &D,
|
|
D, GCCInstallation.getInstallPath() + BiarchSibling.gccSuffix(),
|
|
Paths);
|
|
}
|
|
+#endif // Guix
|
|
|
|
// See comments above on the multilib variant for details of why this is
|
|
// included even from outside the sysroot.
|
|
diff --git a/lib/Driver/ToolChains/Linux.cpp b/lib/Driver/ToolChains/Linux.cpp
|
|
--- a/lib/Driver/ToolChains/Linux.cpp
|
|
+++ b/lib/Driver/ToolChains/Linux.cpp
|
|
@@ -219,6 +219,9 @@ Linux::Linux(const Driver &D, const llvm::Triple &Triple, const ArgList &Args)
|
|
|
|
Generic_GCC::PushPPaths(PPaths);
|
|
|
|
+// Comment out the distro-specific tweaks so that they don't bite when
|
|
+// using Guix on a foreign distro.
|
|
+#if 0
|
|
Distro Distro(D.getVFS(), Triple);
|
|
|
|
if (Distro.IsAlpineLinux() || Triple.isAndroid()) {
|
|
@@ -284,6 +287,7 @@ Linux::Linux(const Driver &D, const llvm::Triple &Triple, const ArgList &Args)
|
|
|
|
if (IsAndroid || Distro.IsOpenSUSE())
|
|
ExtraOpts.push_back("--enable-new-dtags");
|
|
+#endif // Guix
|
|
|
|
// The selection of paths to try here is designed to match the patterns which
|
|
// the GCC driver itself uses, as this is part of the GCC-compatible driver.
|
|
@@ -310,6 +314,8 @@ Linux::Linux(const Driver &D, const llvm::Triple &Triple, const ArgList &Args)
|
|
addPathIfExists(D, SysRoot + "/lib/" + MultiarchTriple, Paths);
|
|
addPathIfExists(D, SysRoot + "/lib/../" + OSLibDir, Paths);
|
|
|
|
+// This requires the commented distro tweaks above.
|
|
+#if 0
|
|
if (IsAndroid) {
|
|
// Android sysroots contain a library directory for each supported OS
|
|
// version as well as some unversioned libraries in the usual multiarch
|
|
@@ -338,6 +344,7 @@ Linux::Linux(const Driver &D, const llvm::Triple &Triple, const ArgList &Args)
|
|
addPathIfExists(D, SysRoot + "/" + OSLibDir + "/" + ABIName, Paths);
|
|
addPathIfExists(D, SysRoot + "/usr/" + OSLibDir + "/" + ABIName, Paths);
|
|
}
|
|
+#endif // Guix
|
|
|
|
Generic_GCC::AddMultiarchPaths(D, SysRoot, OSLibDir, Paths);
|
|
|
|
@@ -349,8 +356,9 @@ Linux::Linux(const Driver &D, const llvm::Triple &Triple, const ArgList &Args)
|
|
if (StringRef(D.Dir).startswith(SysRoot))
|
|
addPathIfExists(D, D.Dir + "/../lib", Paths);
|
|
|
|
- addPathIfExists(D, SysRoot + "/lib", Paths);
|
|
- addPathIfExists(D, SysRoot + "/usr/lib", Paths);
|
|
+ // Add libc's lib/ directory to the search path, so that crt1.o, crti.o,
|
|
+ // and friends can be found.
|
|
+ addPathIfExists(D, "@GLIBC_LIBDIR@", Paths);
|
|
}
|
|
|
|
ToolChain::CXXStdlibType Linux::GetDefaultCXXStdlibType() const {
|