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authorHilton Chain <hako@ultrarare.space>2023-10-23 20:43:53 +0800
committerEfraim Flashner <efraim@flashner.co.il>2023-11-12 08:49:46 +0200
commit6ccc8e1e1693c50a506d51994eb02135aea00362 (patch)
treec3b00f4aa9e4adfcd958acb3913672ccfcc377d7 /gnu/packages/patches
parenta15312aa03a9566daee5552c713919ab2a3b36dc (diff)
downloadguix-6ccc8e1e1693c50a506d51994eb02135aea00362.tar
guix-6ccc8e1e1693c50a506d51994eb02135aea00362.tar.gz
gnu: Add llvm-17.
* gnu/packages/llvm.scm (llvm-17): New variable. * gnu/packages/patches/clang-17.0-libc-search-path.patch: New file. * gnu/local.mk (dist_patch_DATA): Register it. Change-Id: I8cdda0737b1137cf86887fb5b854e71977a88b6b
Diffstat (limited to 'gnu/packages/patches')
-rw-r--r--gnu/packages/patches/clang-17.0-libc-search-path.patch90
1 files changed, 90 insertions, 0 deletions
diff --git a/gnu/packages/patches/clang-17.0-libc-search-path.patch b/gnu/packages/patches/clang-17.0-libc-search-path.patch
new file mode 100644
index 0000000000..dd4d8cb998
--- /dev/null
+++ b/gnu/packages/patches/clang-17.0-libc-search-path.patch
@@ -0,0 +1,90 @@
+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/clang/lib/Driver/Distro.cpp b/clang/lib/Driver/Distro.cpp
+index 6e0087565941..c0a3ba7d7702 100644
+--- a/clang/lib/Driver/Distro.cpp
++++ b/clang/lib/Driver/Distro.cpp
+@@ -99,6 +99,10 @@ 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/clang/lib/Driver/ToolChains/Cuda.cpp b/clang/lib/Driver/ToolChains/Cuda.cpp
+index 3a577650eb08..ca3373edc127 100644
+--- a/clang/lib/Driver/ToolChains/Cuda.cpp
++++ b/clang/lib/Driver/ToolChains/Cuda.cpp
+@@ -128,6 +128,9 @@ 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/clang/lib/Driver/ToolChains/Linux.cpp b/clang/lib/Driver/ToolChains/Linux.cpp
+index 1ba222bf83b1..28766c5ab792 100644
+--- a/clang/lib/Driver/ToolChains/Linux.cpp
++++ b/clang/lib/Driver/ToolChains/Linux.cpp
+@@ -220,6 +220,10 @@ 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()) {
+@@ -280,6 +284,7 @@ Linux::Linux(const Driver &D, const llvm::Triple &Triple, const ArgList &Args)
+
+ #ifdef ENABLE_LINKER_BUILD_ID
+ ExtraOpts.push_back("--build-id");
++#endif
+ #endif
+
+ // The selection of paths to try here is designed to match the patterns which
+@@ -301,6 +306,7 @@ Linux::Linux(const Driver &D, const llvm::Triple &Triple, const ArgList &Args)
+ }
+ Generic_GCC::AddMultilibPaths(D, SysRoot, OSLibDir, MultiarchTriple, Paths);
+
++#if 0
+ addPathIfExists(D, concat(SysRoot, "/lib", MultiarchTriple), Paths);
+ addPathIfExists(D, concat(SysRoot, "/lib/..", OSLibDir), Paths);
+
+@@ -329,11 +335,21 @@ Linux::Linux(const Driver &D, const llvm::Triple &Triple, const ArgList &Args)
+ addPathIfExists(D, concat(SysRoot, "/", OSLibDir, ABIName), Paths);
+ addPathIfExists(D, concat(SysRoot, "/usr", OSLibDir, ABIName), Paths);
+ }
++#endif
+
+ Generic_GCC::AddMultiarchPaths(D, SysRoot, OSLibDir, Paths);
+
++#if 0
+ addPathIfExists(D, concat(SysRoot, "/lib"), Paths);
+ addPathIfExists(D, concat(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);
++
++ // Add GCC's lib/ directory so libstdc++.so can be found.
++ addPathIfExists(D, GCCInstallation.getParentLibPath(), Paths);
+ }
+
+ ToolChain::RuntimeLibType Linux::GetDefaultRuntimeLibType() const {