70 lines
2.6 KiB
Diff
70 lines
2.6 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-GuixSD systems.
|
||
|
|
|
||
|
|
This patch makes slight adjustments over "clang-libc-search-path.patch" for
|
||
|
|
changes in clang 3.8.
|
||
|
|
|
||
|
|
--- cfe-3.8.0.src/lib/Driver/ToolChains.cpp
|
||
|
|
+++ cfe-3.8.0.src/lib/Driver/ToolChains.cpp
|
||
|
|
@@ -3661,6 +3661,9 @@
|
||
|
|
GCCInstallation.getTriple().str() + "/bin")
|
||
|
|
.str());
|
||
|
|
|
||
|
|
+ // Comment out the distro-specific tweaks so that they don't bite when
|
||
|
|
+ // using Guix on a foreign distro.
|
||
|
|
+#if 0
|
||
|
|
Distro Distro = DetectDistro(D, Arch);
|
||
|
|
|
||
|
|
if (IsOpenSUSE(Distro) || IsUbuntu(Distro)) {
|
||
|
|
@@ -3702,6 +3705,7 @@
|
||
|
|
|
||
|
|
if (IsOpenSUSE(Distro))
|
||
|
|
ExtraOpts.push_back("--enable-new-dtags");
|
||
|
|
+#endif
|
||
|
|
|
||
|
|
// 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.
|
||
|
|
@@ -3771,14 +3775,12 @@
|
||
|
|
addPathIfExists(D, D.Dir + "/../" + OSLibDir, Paths);
|
||
|
|
}
|
||
|
|
|
||
|
|
- addPathIfExists(D, SysRoot + "/lib/" + MultiarchTriple, Paths);
|
||
|
|
- addPathIfExists(D, SysRoot + "/lib/../" + OSLibDir, Paths);
|
||
|
|
- addPathIfExists(D, SysRoot + "/usr/lib/" + MultiarchTriple, Paths);
|
||
|
|
- addPathIfExists(D, SysRoot + "/usr/lib/../" + OSLibDir, Paths);
|
||
|
|
-
|
||
|
|
// 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,
|
||
|
|
@@ -3791,6 +3793,7 @@
|
||
|
|
BiarchSibling.gccSuffix(),
|
||
|
|
Paths);
|
||
|
|
}
|
||
|
|
+#endif
|
||
|
|
|
||
|
|
// See comments above on the multilib variant for details of why this is
|
||
|
|
// included even from outside the sysroot.
|
||
|
|
@@ -3815,8 +3818,9 @@
|
||
|
|
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);
|
||
|
|
}
|
||
|
|
|
||
|
|
bool Linux::HasNativeLLVMSupport() const { return true; }
|