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-rw-r--r--nixpkgs/pkgs/development/compilers/llvm/git/compiler-rt/default.nix43
1 files changed, 29 insertions, 14 deletions
diff --git a/nixpkgs/pkgs/development/compilers/llvm/git/compiler-rt/default.nix b/nixpkgs/pkgs/development/compilers/llvm/git/compiler-rt/default.nix
index b20796ab02ab..7add8fab0f91 100644
--- a/nixpkgs/pkgs/development/compilers/llvm/git/compiler-rt/default.nix
+++ b/nixpkgs/pkgs/development/compilers/llvm/git/compiler-rt/default.nix
@@ -9,6 +9,7 @@ let
   useLLVM = stdenv.hostPlatform.useLLVM or false;
   bareMetal = stdenv.hostPlatform.parsed.kernel.name == "none";
   haveLibc = stdenv.cc.libc != null;
+  isDarwinStatic = stdenv.hostPlatform.isDarwin && stdenv.hostPlatform.isStatic;
   inherit (stdenv.hostPlatform) isMusl;
 
   baseName = "compiler-rt";
@@ -31,9 +32,16 @@ stdenv.mkDerivation {
     ++ lib.optional stdenv.isDarwin xcbuild.xcrun;
   buildInputs = lib.optional stdenv.hostPlatform.isDarwin libcxxabi;
 
-  env.NIX_CFLAGS_COMPILE = toString [
+  env.NIX_CFLAGS_COMPILE = toString ([
     "-DSCUDO_DEFAULT_OPTIONS=DeleteSizeMismatch=0:DeallocationTypeMismatch=0"
-  ];
+  ] ++ lib.optionals (!haveLibc) [
+    # The compiler got stricter about this, and there is a usellvm patch below
+    # which patches out the assert include causing an implicit definition of
+    # assert. It would be nicer to understand why compiler-rt thinks it should
+    # be able to #include <assert.h> in the first place; perhaps it's in the
+    # wrong, or perhaps there is a way to provide an assert.h.
+    "-Wno-error=implicit-function-declaration"
+  ]);
 
   cmakeFlags = [
     "-DCOMPILER_RT_DEFAULT_TARGET_ONLY=ON"
@@ -41,19 +49,22 @@ stdenv.mkDerivation {
     "-DCMAKE_ASM_COMPILER_TARGET=${stdenv.hostPlatform.config}"
   ] ++ lib.optionals (haveLibc && stdenv.hostPlatform.libc == "glibc") [
     "-DSANITIZER_COMMON_CFLAGS=-I${libxcrypt}/include"
-  ] ++ lib.optionals (useLLVM || bareMetal || isMusl) [
+  ] ++ lib.optionals (useLLVM || bareMetal || isMusl || isDarwinStatic) [
     "-DCOMPILER_RT_BUILD_SANITIZERS=OFF"
     "-DCOMPILER_RT_BUILD_XRAY=OFF"
     "-DCOMPILER_RT_BUILD_LIBFUZZER=OFF"
     "-DCOMPILER_RT_BUILD_MEMPROF=OFF"
     "-DCOMPILER_RT_BUILD_ORC=OFF" # may be possible to build with musl if necessary
   ] ++ lib.optionals (useLLVM || bareMetal) [
-    "-DCOMPILER_RT_BUILD_PROFILE=OFF"
+     "-DCOMPILER_RT_BUILD_PROFILE=OFF"
+  ] ++ lib.optionals ((useLLVM && !haveLibc) || bareMetal || isDarwinStatic ) [
+    "-DCMAKE_CXX_COMPILER_WORKS=ON"
   ] ++ lib.optionals ((useLLVM && !haveLibc) || bareMetal) [
     "-DCMAKE_C_COMPILER_WORKS=ON"
-    "-DCMAKE_CXX_COMPILER_WORKS=ON"
     "-DCOMPILER_RT_BAREMETAL_BUILD=ON"
     "-DCMAKE_SIZEOF_VOID_P=${toString (stdenv.hostPlatform.parsed.cpu.bits / 8)}"
+  ] ++ lib.optionals (useLLVM && !haveLibc) [
+    "-DCMAKE_C_FLAGS=-nodefaultlibs"
   ] ++ lib.optionals (useLLVM) [
     "-DCOMPILER_RT_BUILD_BUILTINS=ON"
     #https://stackoverflow.com/questions/53633705/cmake-the-c-compiler-is-not-able-to-compile-a-simple-test-program
@@ -61,18 +72,16 @@ stdenv.mkDerivation {
   ] ++ lib.optionals (bareMetal) [
     "-DCOMPILER_RT_OS_DIR=baremetal"
   ] ++ lib.optionals (stdenv.hostPlatform.isDarwin) [
+    "-DCMAKE_LIPO=${lib.getBin stdenv.cc.bintools.bintools}/bin/${stdenv.cc.targetPrefix}lipo"
     "-DDARWIN_macosx_OVERRIDE_SDK_VERSION=ON"
     "-DDARWIN_osx_ARCHS=${stdenv.hostPlatform.darwinArch}"
     "-DDARWIN_osx_BUILTIN_ARCHS=${stdenv.hostPlatform.darwinArch}"
+
     # `COMPILER_RT_DEFAULT_TARGET_ONLY` does not apply to Darwin:
     # https://github.com/llvm/llvm-project/blob/27ef42bec80b6c010b7b3729ed0528619521a690/compiler-rt/cmake/base-config-ix.cmake#L153
     "-DCOMPILER_RT_ENABLE_IOS=OFF"
   ];
 
-  preConfigure = lib.optionalString (useLLVM && !haveLibc) ''
-    cmakeFlagsArray+=(-DCMAKE_C_FLAGS="-nodefaultlibs -ffreestanding")
-  '';
-
   outputs = [ "out" "dev" ];
 
   patches = [
@@ -86,7 +95,7 @@ stdenv.mkDerivation {
     # See: https://github.com/NixOS/nixpkgs/pull/186575
     ../../common/compiler-rt/darwin-plistbuddy-workaround.patch
     # See: https://github.com/NixOS/nixpkgs/pull/194634#discussion_r999829893
-    ../../common/compiler-rt/armv7l-15.patch
+    # ../../common/compiler-rt/armv7l-15.patch
   ];
 
   # TSAN requires XPC on Darwin, which we have no public/free source files for. We can depend on the Apple frameworks
@@ -100,7 +109,7 @@ stdenv.mkDerivation {
   '' + lib.optionalString stdenv.isDarwin ''
     substituteInPlace cmake/config-ix.cmake \
       --replace 'set(COMPILER_RT_HAS_TSAN TRUE)' 'set(COMPILER_RT_HAS_TSAN FALSE)'
-  '' + lib.optionalString (useLLVM) ''
+  '' + lib.optionalString (useLLVM && !haveLibc) ''
     substituteInPlace lib/builtins/int_util.c \
       --replace "#include <stdlib.h>" ""
     substituteInPlace lib/builtins/clear_cache.c \
@@ -110,15 +119,21 @@ stdenv.mkDerivation {
   '';
 
   # Hack around weird upsream RPATH bug
-  postInstall = lib.optionalString (stdenv.hostPlatform.isDarwin || stdenv.hostPlatform.isWasm) ''
+  postInstall = lib.optionalString (stdenv.hostPlatform.isDarwin) ''
     ln -s "$out/lib"/*/* "$out/lib"
-  '' + lib.optionalString (useLLVM) ''
+  '' + lib.optionalString (useLLVM && stdenv.hostPlatform.isLinux) ''
     ln -s $out/lib/*/clang_rt.crtbegin-*.o $out/lib/crtbegin.o
     ln -s $out/lib/*/clang_rt.crtend-*.o $out/lib/crtend.o
+    # Note the history of crt{begin,end}S in previous versions of llvm in nixpkg:
+    # The presence of crtbegin_shared has been added and removed; it's possible
+    # people have added/removed it to get it working on their platforms.
+    # Try each in turn for now.
+    ln -s $out/lib/*/clang_rt.crtbegin-*.o $out/lib/crtbeginS.o
+    ln -s $out/lib/*/clang_rt.crtend-*.o $out/lib/crtendS.o
     ln -s $out/lib/*/clang_rt.crtbegin_shared-*.o $out/lib/crtbeginS.o
     ln -s $out/lib/*/clang_rt.crtend_shared-*.o $out/lib/crtendS.o
   '' + lib.optionalString doFakeLibgcc ''
-    ln -s $out/lib/freebsd/libclang_rt.builtins-*.a $out/lib/libgcc.a
+     ln -s $out/lib/freebsd/libclang_rt.builtins-*.a $out/lib/libgcc.a
   '';
 
   meta = llvm_meta // {