5be0a9acd7
This is for consistency with terminology in stdenv (and the terms "hostDrv" and "buildDrv" are not very intuitive, even if they're consistent with GNU terminology).
84 lines
3.1 KiB
Nix
84 lines
3.1 KiB
Nix
# The Nix `clang' stdenv.mkDerivation is not directly usable, since it doesn't
|
|
# know where the C library and standard header files are. Therefore
|
|
# the compiler produced by that package cannot be installed directly
|
|
# in a user environment and used from the command line. This
|
|
# stdenv.mkDerivation provides a wrapper that sets up the right environment
|
|
# variables so that the compiler and the linker just "work".
|
|
|
|
{ name ? "", stdenv, nativeTools, nativeLibc, nativePrefix ? ""
|
|
, clang ? null, libc ? null, binutils ? null, coreutils ? null, shell ? ""
|
|
, zlib ? null
|
|
}:
|
|
|
|
assert nativeTools -> nativePrefix != "";
|
|
assert !nativeTools -> clang != null && binutils != null && coreutils != null;
|
|
assert !nativeLibc -> libc != null;
|
|
|
|
let
|
|
|
|
clangVersion = (builtins.parseDrvName clang.name).version;
|
|
clangName = (builtins.parseDrvName clang.name).name;
|
|
|
|
in
|
|
|
|
stdenv.mkDerivation {
|
|
name =
|
|
(if name != "" then name else clangName + "-wrapper") +
|
|
(if clang != null && clangVersion != "" then "-" + clangVersion else "");
|
|
|
|
builder = ./builder.sh;
|
|
setupHook = ./setup-hook.sh;
|
|
clangWrapper = ./clang-wrapper.sh;
|
|
ldWrapper = ./ld-wrapper.sh;
|
|
utils = ./utils.sh;
|
|
addFlags = ./add-flags;
|
|
|
|
inherit nativeTools nativeLibc nativePrefix clang clangVersion;
|
|
gcc = clang.gcc;
|
|
libc = if nativeLibc then null else libc;
|
|
binutils = if nativeTools then null else binutils;
|
|
# The wrapper scripts use 'cat', so we may need coreutils
|
|
coreutils = if nativeTools then null else coreutils;
|
|
|
|
langC = true;
|
|
langCC = true;
|
|
shell = if shell == "" then stdenv.shell else
|
|
if builtins.isAttrs shell then (shell + shell.shellPath)
|
|
else shell;
|
|
|
|
crossAttrs = {
|
|
shell = shell.crossDrv + shell.crossDrv.shellPath;
|
|
libc = libc.crossDrv;
|
|
coreutils = coreutils.crossDrv;
|
|
binutils = binutils.crossDrv;
|
|
clang = clang.crossDrv;
|
|
#
|
|
# This is not the best way to do this. I think the reference should be
|
|
# the style in the gcc-cross-wrapper, but to keep a stable stdenv now I
|
|
# do this sufficient if/else.
|
|
dynamicLinker =
|
|
(if stdenv.cross.arch == "arm" then "ld-linux.so.3" else
|
|
if stdenv.cross.arch == "mips" then "ld.so.1" else
|
|
if stdenv.lib.hasSuffix "pc-gnu" stdenv.cross.config then "ld.so.1" else
|
|
abort "don't know the name of the dynamic linker for this platform");
|
|
};
|
|
|
|
meta =
|
|
let clang_ = if clang != null then clang else {}; in
|
|
(if clang_ ? meta then removeAttrs clang.meta ["priority"] else {}) //
|
|
{ description =
|
|
stdenv.lib.attrByPath ["meta" "description"] "System C compiler" clang_
|
|
+ " (wrapper script)";
|
|
};
|
|
|
|
# The dynamic linker has different names on different Linux platforms.
|
|
dynamicLinker =
|
|
if !nativeLibc then
|
|
(if stdenv.system == "i686-linux" then "ld-linux.so.2" else
|
|
if stdenv.system == "x86_64-linux" then "ld-linux-x86-64.so.2" else
|
|
if stdenv.isArm then "ld-linux.so.3" else
|
|
if stdenv.system == "powerpc-linux" then "ld.so.1" else
|
|
if stdenv.system == "mips64el-linux" then "ld.so.1" else
|
|
abort "don't know the name of the dynamic linker for this platform")
|
|
else "";
|
|
}
|