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gnu: Add wasi-compiler-rt.

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* gnu/packages/web.scm (wasi-compiler-rt): New variable.

Change-Id: I047d1a70e0ba8fba41059cc1948408e0fd3c5077
Signed-off-by: Sharlatan Hellseher <sharlatanus@gmail.com>
This commit is contained in:
Roman Scherer
2026-01-01 17:19:44 +01:00
committed by Sharlatan Hellseher
parent 071ea27a6c
commit 6e6809ff61
1 changed files with 89 additions and 0 deletions
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89
gnu/packages/web.scm
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@@ -2067,6 +2067,95 @@ These tools are intended for use in (or for development of) toolchains or
other systems that want to manipulate WebAssembly files.")
(license license:asl2.0)))
(define-public wasi-compiler-rt
(package
(name "wasi-compiler-rt")
(version "21.1.8")
(source
(origin
(method git-fetch)
(uri (git-reference
(url "https://github.com/llvm/llvm-project")
(commit (string-append "llvmorg-" version))))
(file-name (string-append "llvm-project-" version "-checkout"))
(sha256
(base32 "0v99a90546lrd3cxgam32c0jcnwzi0ljk0ihdvd9xghzss1pq1x6"))
(patches (search-patches "clang-18.0-libc-search-path.patch"
"clang-17.0-link-dsymutil-latomic.patch"))))
(build-system cmake-build-system)
(arguments
(list
#:tests? #f ;requires WASM runtime to run tests
#:build-type "Release"
#:configure-flags
#~(list (string-append "-DCMAKE_INSTALL_PREFIX=" #$output)
"-DCMAKE_C_COMPILER_WORKS=ON"
"-DCMAKE_CXX_COMPILER_WORKS=ON"
"-DCOMPILER_RT_BAREMETAL_BUILD=ON"
;; Use the normalized target triple so clang finds the builtins
;; at lib/<target>/libclang_rt.builtins.a
"-DCOMPILER_RT_OS_DIR=wasm32-unknown-wasi"
"-DCOMPILER_RT_DEFAULT_TARGET_ONLY=ON"
"-DCOMPILER_RT_INCLUDE_TESTS=OFF"
"-DCOMPILER_RT_HAS_FPIC_FLAG=OFF"
(string-append "-DCMAKE_SYSROOT="
#$(this-package-input "wasi-libc")
"/share/wasi-sysroot")
(string-append "-DCMAKE_C_FLAGS=-fno-exceptions --target=wasm32-wasi "
"-isystem "
#$(this-package-input "wasi-libc")
"/share/wasi-sysroot/include/wasm32-wasi")
(string-append "-DCMAKE_C_COMPILER="
#$(this-package-native-input "clang")
"/bin/clang")
(string-append "-DCMAKE_CXX_COMPILER="
#$(this-package-native-input "clang")
"/bin/clang++")
(string-append "-DCMAKE_AR="
#$(this-package-native-input "llvm")
"/bin/llvm-ar")
(string-append "-DCMAKE_RANLIB="
#$(this-package-native-input "llvm")
"/bin/llvm-ranlib")
"-DCMAKE_SYSTEM_NAME=WASI"
"-DCMAKE_SYSTEM_PROCESSOR=wasm32"
"-DCMAKE_C_COMPILER_TARGET=wasm32-wasi"
"-DCMAKE_CXX_COMPILER_TARGET=wasm32-wasi"
"-DCMAKE_ASM_COMPILER_TARGET=wasm32-wasi")
#:phases
#~(modify-phases %standard-phases
(add-after 'unpack 'change-directory
(lambda _
;; Build only the builtins library from compiler-rt
(chdir "compiler-rt/lib/builtins")))
(add-after 'install 'create-target-symlinks
(lambda _
;; Create symlinks for wasip1 and wasip2 targets
(let* ((lib-dir (string-append #$output "/lib"))
(wasi-dir (string-append lib-dir "/wasm32-unknown-wasi")))
(symlink "wasm32-unknown-wasi"
(string-append lib-dir "/wasm32-unknown-wasip1"))
(symlink "wasm32-unknown-wasi"
(string-append lib-dir "/wasm32-unknown-wasip2"))
;; Clang looks for libclang_rt.builtins.a but we have
;; libclang_rt.builtins-wasm32.a, so create a symlink
(symlink "libclang_rt.builtins-wasm32.a"
(string-append wasi-dir "/libclang_rt.builtins.a"))))))))
(native-inputs
(list clang-21
llvm-21
lld-21))
(inputs
(list wasi-libc))
(home-page "https://compiler-rt.llvm.org")
(synopsis "LLVM compiler runtime builtins for WASI")
(description
"This package provides the LLVM compiler runtime builtins library for the
WebAssembly System Interface (WASI) target. It includes software
implementations of arithmetic operations that are not directly supported by
the WebAssembly instruction set.")
(license license:asl2.0))) ;with LLVM exceptions
(define-public wasi-libc
(package
(name "wasi-libc")