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aspmx1.migadu.com; dkim=fail ("headers rsa verify failed") header.d=lepiller.eu header.s=dkim header.b=C+Acf6O8; dmarc=fail reason="SPF not aligned (relaxed)" header.from=lepiller.eu (policy=none); spf=pass (aspmx1.migadu.com: domain of "guix-patches-bounces+larch=yhetil.org@gnu.org" designates 209.51.188.17 as permitted sender) smtp.mailfrom="guix-patches-bounces+larch=yhetil.org@gnu.org" X-Migadu-Spam-Score: 7.04 Authentication-Results: aspmx1.migadu.com; dkim=fail ("headers rsa verify failed") header.d=lepiller.eu header.s=dkim header.b=C+Acf6O8; dmarc=fail reason="SPF not aligned (relaxed)" header.from=lepiller.eu (policy=none); spf=pass (aspmx1.migadu.com: domain of "guix-patches-bounces+larch=yhetil.org@gnu.org" designates 209.51.188.17 as permitted sender) smtp.mailfrom="guix-patches-bounces+larch=yhetil.org@gnu.org" X-Migadu-Queue-Id: C82812E826 X-Spam-Score: 7.04 X-Migadu-Scanner: scn0.migadu.com X-TUID: gmbK4hcGozLL * gnu/packages/llvm.scm (cross-clang): New variable. --- gnu/packages/llvm.scm | 144 +++++++++++++++++++++++++++++++++++++++++- 1 file changed, 143 insertions(+), 1 deletion(-) diff --git a/gnu/packages/llvm.scm b/gnu/packages/llvm.scm index d6e9846699..c277e2ac35 100644 --- a/gnu/packages/llvm.scm +++ b/gnu/packages/llvm.scm @@ -54,6 +54,7 @@ (define-module (gnu packages llvm) #:use-module (guix build-system trivial) #:use-module (gnu packages) #:use-module (gnu packages base) + #:use-module (gnu packages cross-base) #:use-module (gnu packages gcc) #:use-module (gnu packages bootstrap) ;glibc-dynamic-linker #:use-module (gnu packages check) ;python-lit @@ -75,7 +76,9 @@ (define-module (gnu packages llvm) #:use-module (ice-9 match) #:export (make-lld-wrapper system->llvm-target - cross-llvm)) + cross-llvm + cross-clang + clang-for-target)) (define* (system->llvm-target #:optional (system (or (and=> (%current-target-system) @@ -1023,6 +1026,145 @@ (define-public clang-runtime clang-runtime-13) (define-public clang clang-13) (define-public clang-toolchain clang-toolchain-13) +(define* (cross-clang target + #:key + (libc (cross-libc target)) + (xgcc (cross-gcc target + #:xbinutils (cross-binutils target) + #:libc (cross-libc target))) + (clang clang)) + "Return a cross-clang compiler for target." + (define cross-clang-aux + (mlambda (target libc xgcc clang) + (package + (inherit clang) + (name (string-append "clang-cross-" target)) + (version (package-version clang)) + ;; Support the same variables as clang, even in cross-compilation context. + ;; Clang does not make a difference between native and cross-compilation. + (search-paths + (list + (search-path-specification + (variable "CROSS_LIBRARY_PATH") + (files '("lib"))) + (search-path-specification + (variable "CROSS_C_INCLUDE_PATH") + (files '("include"))) + (search-path-specification + (variable "CROSS_CPLUS_INCLUDE_PATH") + (files '("include/c++" "include"))))) + (native-search-paths '()) + (arguments + (substitute-keyword-arguments (package-arguments clang) + ((#:configure-flags _) + `(list "-DCLANG_INCLUDE_TESTS=True" + (string-append "-DGCC_INSTALL_PREFIX=" + (assoc-ref %build-inputs "cross-gcc-lib")) + (string-append "-DC_INCLUDE_DIRS=" + (assoc-ref %build-inputs "target-libc") + "/include"))) + ((#:phases phases) + `(modify-phases ,phases + (add-after 'unpack 'add-missing-libdir + (lambda _ + ;; cross-gcc installs its libraries in /lib instead of + ;; lib. + (substitute* "lib/Driver/ToolChain.cpp" + (("\"-L\"\\) \\+ LibPath\\)\\);") + ,(string-append "\"-L\") + LibPath)); + CmdArgs.push_back(Args.MakeArgString(StringRef(\"-L\") + " + "StringRef(GCC_INSTALL_PREFIX) + StringRef(\"/" + target "/lib\"))); + CmdArgs.push_back(Args.MakeArgString(StringRef(\"-rpath=\") + " + "StringRef(GCC_INSTALL_PREFIX) + StringRef(\"/" + target "/lib\")));"))))) + (add-after 'unpack 'support-cross-include-path + (lambda _ + (substitute* "lib/Driver/ToolChains/Clang.cpp" + (("C_INCLUDE_PATH") "CROSS_C_INCLUDE_PATH") + (("CPLUS_INCLUDE_PATH") "CROSS_CPLUS_INCLUDE_PATH")))) + (add-after 'unpack 'support-cross-library-path + (lambda _ + ;; LIBRARY_PATH is only supported for native builds, but we still + ;; need it (or CROSS_LIBRARY_PATH to be precise) when + ;; cross-compiling + (substitute* "lib/Driver/ToolChains/CommonArgs.cpp" + (("LIBRARY_PATH\"") + "LIBRARY_PATH\"); + } else { + addDirectoryList(Args, CmdArgs, \"-L\", \"CROSS_LIBRARY_PATH\"")))) + (replace 'set-glibc-file-names + (lambda* (#:key inputs #:allow-other-keys) + (let ((libc (assoc-ref inputs "target-libc")) + (compiler-rt (assoc-ref inputs "clang-runtime")) + (gcc (assoc-ref inputs "cross-gcc"))) + (setenv "LIBRARY_PATH" + (string-append + (assoc-ref inputs "libc") "/lib:" (getenv "LIBRARY_PATH"))) + ,@(cond + ((version>=? version "6.0") + `(;; Link to libclang_rt files from clang-runtime. + (substitute* "lib/Driver/ToolChain.cpp" + (("getDriver\\(\\)\\.ResourceDir") + (string-append "\"" compiler-rt "\""))) + + ;; Make "LibDir" refer to /lib so that it + ;; uses the right dynamic linker file name. + (substitute* "lib/Driver/ToolChains/Linux.cpp" + (("(^[[:blank:]]+LibDir = ).*" _ declaration) + (string-append declaration "\"" libc "/lib\";\n")) + + ;; Make clang look for libstdc++ in the right + ;; location. + (("LibStdCXXIncludePathCandidates\\[\\] = \\{") + (string-append + "LibStdCXXIncludePathCandidates[] = { \"" gcc + "/include/c++\",")) + + ;; Make sure libc's libdir is on the search path, to + ;; allow crt1.o & co. to be found. + (("@GLIBC_LIBDIR@") + (string-append libc "/lib"))))) + (else + `((substitute* "lib/Driver/Tools.cpp" + ;; Patch the 'getLinuxDynamicLinker' function so that + ;; it uses the right dynamic linker file name. + (("/lib64/ld-linux-x86-64.so.2") + (string-append libc ,(glibc-dynamic-linker)))) + + ;; Link to libclang_rt files from clang-runtime. + ;; This substitution needed slight adjustment in 3.8. + ,@(if (version>=? version "3.8") + '((substitute* "lib/Driver/Tools.cpp" + (("TC\\.getDriver\\(\\)\\.ResourceDir") + (string-append "\"" compiler-rt "\"")))) + '((substitute* "lib/Driver/ToolChain.cpp" + (("getDriver\\(\\)\\.ResourceDir") + (string-append "\"" compiler-rt "\""))))) + + ;; Make sure libc's libdir is on the search path, to + ;; allow crt1.o & co. to be found. + (substitute* "lib/Driver/ToolChains.cpp" + (("@GLIBC_LIBDIR@") + (string-append libc "/lib"))))))))))))) + (inputs + `(("target-libc" ,libc) + ("cross-gcc-lib" ,xgcc "lib") + ("cross-gcc" ,xgcc) + ,@(package-inputs clang))) + (propagated-inputs + (modify-inputs (package-propagated-inputs clang) + (replace "llvm" + (cross-llvm + (car (assoc-ref (package-propagated-inputs clang) "llvm")) + target))))))) + (cross-clang-aux target libc xgcc clang)) + +(define* (clang-for-target #:optional (clang clang)) + (if (%current-target-system) + (cross-clang (%current-target-system) #:clang clang) + clang)) + (define-public llvm-for-rocm (package ;; Actually based on LLVM 13 as of v4.3, but llvm-12 works just fine. -- 2.34.0