diff options
| -rw-r--r-- | gnu/local.mk | 1 | ||||
| -rw-r--r-- | gnu/packages/llvm.scm | 2 | ||||
| -rw-r--r-- | gnu/packages/patches/clang-11.0-libc-search-path.patch | 101 | ||||
| -rw-r--r-- | gnu/packages/patches/clang-12.0-libc-search-path.patch | 84 |
4 files changed, 134 insertions, 54 deletions
diff --git a/gnu/local.mk b/gnu/local.mk index 1f036beee5..bb3063c4ac 100644 --- a/gnu/local.mk +++ b/gnu/local.mk @@ -936,6 +936,7 @@ dist_patch_DATA = \ %D%/packages/patches/clang-9.0-libc-search-path.patch \ %D%/packages/patches/clang-10.0-libc-search-path.patch \ %D%/packages/patches/clang-11.0-libc-search-path.patch \ + %D%/packages/patches/clang-12.0-libc-search-path.patch \ %D%/packages/patches/clang-runtime-asan-build-fixes.patch \ %D%/packages/patches/clang-runtime-esan-build-fixes.patch \ %D%/packages/patches/clang-runtime-9-libsanitizer-mode-field.patch \ diff --git a/gnu/packages/llvm.scm b/gnu/packages/llvm.scm index 3e0450cb04..a79998e5ac 100644 --- a/gnu/packages/llvm.scm +++ b/gnu/packages/llvm.scm @@ -547,7 +547,7 @@ of programming tools as well as libraries with equivalent functionality.") (define-public clang-12 (clang-from-llvm llvm-12 clang-runtime-12 "0px4gl27az6cdz6adds89qzdwb1cqpjsfvrldbz9qvpmphrj34bf" - #:patches '("clang-11.0-libc-search-path.patch") + #:patches '("clang-12.0-libc-search-path.patch") #:tools-extra (origin (method url-fetch) diff --git a/gnu/packages/patches/clang-11.0-libc-search-path.patch b/gnu/packages/patches/clang-11.0-libc-search-path.patch index c014de179d..d0581d3a29 100644 --- a/gnu/packages/patches/clang-11.0-libc-search-path.patch +++ b/gnu/packages/patches/clang-11.0-libc-search-path.patch @@ -4,48 +4,47 @@ 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. +to make sure Clang also works on foreign distros. -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 +diff --git a/lib/Driver/Distro.cpp b/lib/Driver/Distro.cpp +index 4d58ad1a..6f638eca 100644 +--- a/lib/Driver/Distro.cpp ++++ b/lib/Driver/Distro.cpp +@@ -21,6 +21,10 @@ using namespace clang; - // See comments above on the multilib variant for details of why this is - // included even from outside the sysroot. + static Distro::DistroType DetectDistro(llvm::vfs::FileSystem &VFS, + const llvm::Triple &TargetOrHost) { ++ // The compiler should always behave the same, even when used via Guix on a ++ // foreign distro. ++ return Distro::UnknownDistro; ++ + // If we don't target Linux, no need to check the distro. This saves a few + // OS calls. + if (!TargetOrHost.isOSLinux()) +diff --git a/lib/Driver/ToolChains/Cuda.cpp b/lib/Driver/ToolChains/Cuda.cpp +index 110a0bca..42b9f7b7 100644 +--- a/lib/Driver/ToolChains/Cuda.cpp ++++ b/lib/Driver/ToolChains/Cuda.cpp +@@ -67,6 +67,9 @@ CudaInstallationDetector::CudaInstallationDetector( + const Driver &D, const llvm::Triple &HostTriple, + const llvm::opt::ArgList &Args) + : D(D) { ++ // Don't look for CUDA in /usr. ++ return; ++ + struct Candidate { + std::string Path; + bool StrictChecking; diff --git a/lib/Driver/ToolChains/Linux.cpp b/lib/Driver/ToolChains/Linux.cpp +index 18035047..ace8f443 100644 --- 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. ++ // 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); @@ -54,36 +53,32 @@ diff --git a/lib/Driver/ToolChains/Linux.cpp b/lib/Driver/ToolChains/Linux.cpp if (IsAndroid || Distro.IsOpenSUSE()) ExtraOpts.push_back("--enable-new-dtags"); -+#endif // Guix ++#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. -@@ -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); +@@ -297,6 +301,7 @@ Linux::Linux(const Driver &D, const llvm::Triple &Triple, const ArgList &Args) -+// 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); + Generic_GCC::AddMultilibPaths(D, SysRoot, OSLibDir, MultiarchTriple, Paths); -@@ -349,8 +356,9 @@ Linux::Linux(const Driver &D, const llvm::Triple &Triple, const ArgList &Args) ++#if 0 + // Similar to the logic for GCC above, if we currently running Clang inside + // of the requested system root, add its parent library paths to + // those searched. +@@ -348,9 +353,14 @@ Linux::Linux(const Driver &D, const llvm::Triple &Triple, const ArgList &Args) + // directory ('Dir' below) or the ResourceDir. if (StringRef(D.Dir).startswith(SysRoot)) addPathIfExists(D, D.Dir + "/../lib", Paths); - -- addPathIfExists(D, SysRoot + "/lib", Paths); -- addPathIfExists(D, SysRoot + "/usr/lib", Paths); ++#endif ++ + // 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); + +- addPathIfExists(D, SysRoot + "/lib", Paths); +- addPathIfExists(D, SysRoot + "/usr/lib", Paths); ++ // Add GCC's lib/ directory so libstdc++.so can be found. ++ addPathIfExists(D, GCCInstallation.getParentLibPath(), Paths); } ToolChain::CXXStdlibType Linux::GetDefaultCXXStdlibType() const { diff --git a/gnu/packages/patches/clang-12.0-libc-search-path.patch b/gnu/packages/patches/clang-12.0-libc-search-path.patch new file mode 100644 index 0000000000..38de275048 --- /dev/null +++ b/gnu/packages/patches/clang-12.0-libc-search-path.patch @@ -0,0 +1,84 @@ +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 foreign distros. + +diff --git a/lib/Driver/Distro.cpp b/lib/Driver/Distro.cpp +index ee4fe841..f0313bbe 100644 +--- a/lib/Driver/Distro.cpp ++++ b/lib/Driver/Distro.cpp +@@ -93,6 +93,10 @@ static Distro::DistroType DetectLsbRelease(llvm::vfs::FileSystem &VFS) { + } + + static Distro::DistroType DetectDistro(llvm::vfs::FileSystem &VFS) { ++ // The compiler should always behave the same, even when used via Guix on a ++ // foreign distro. ++ return Distro::UnknownDistro; ++ + Distro::DistroType Version = Distro::UnknownDistro; + + // Newer freedesktop.org's compilant systemd-based systems +diff --git a/lib/Driver/ToolChains/Cuda.cpp b/lib/Driver/ToolChains/Cuda.cpp +index d14776c5..88bc3ccd 100644 +--- a/lib/Driver/ToolChains/Cuda.cpp ++++ b/lib/Driver/ToolChains/Cuda.cpp +@@ -119,6 +119,9 @@ CudaInstallationDetector::CudaInstallationDetector( + const Driver &D, const llvm::Triple &HostTriple, + const llvm::opt::ArgList &Args) + : D(D) { ++ // Don't look for CUDA in /usr. ++ return; ++ + struct Candidate { + std::string Path; + bool StrictChecking; +diff --git a/lib/Driver/ToolChains/Linux.cpp b/lib/Driver/ToolChains/Linux.cpp +index 9663a739..107f96d6 100644 +--- a/lib/Driver/ToolChains/Linux.cpp ++++ b/lib/Driver/ToolChains/Linux.cpp +@@ -223,6 +223,9 @@ 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()) { +@@ -288,6 +291,7 @@ Linux::Linux(const Driver &D, const llvm::Triple &Triple, const ArgList &Args) + + if (IsAndroid || Distro.IsOpenSUSE()) + 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. +@@ -301,6 +305,7 @@ Linux::Linux(const Driver &D, const llvm::Triple &Triple, const ArgList &Args) + + Generic_GCC::AddMultilibPaths(D, SysRoot, OSLibDir, MultiarchTriple, Paths); + ++#if 0 + // Similar to the logic for GCC above, if we currently running Clang inside + // of the requested system root, add its parent library paths to + // those searched. +@@ -352,9 +357,14 @@ Linux::Linux(const Driver &D, const llvm::Triple &Triple, const ArgList &Args) + // directory ('Dir' below) or the ResourceDir. + if (StringRef(D.Dir).startswith(SysRoot)) + addPathIfExists(D, D.Dir + "/../lib", Paths); ++#endif ++ ++ // 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); + +- addPathIfExists(D, SysRoot + "/lib", Paths); +- addPathIfExists(D, SysRoot + "/usr/lib", Paths); ++ // Add GCC's lib/ directory so libstdc++.so can be found. ++ addPathIfExists(D, GCCInstallation.getParentLibPath(), Paths); + } + + ToolChain::CXXStdlibType Linux::GetDefaultCXXStdlibType() const { |