public/nixpkgs
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

bintools-wrapper: Init

Browse Source 
Factor a bintools (i.e. binutils / cctools) wrapper out of cc-wrapper. While
only LD is wrapped, the setup hook defines environment variables on behalf of
other utilites.
This commit is contained in:
John Ericson
2017-12-13 16:08:18 -05:00
parent 4f869bccc1
commit 8e557ed2c5
13 changed files with 506 additions and 165 deletions
Download Patch File Download Diff File Expand all files Collapse all files
pkgs/build-support/cc-wrapper/default.nix
+49 -112
View File
@@ -28,6 +28,17 @@ let
stdenv = stdenvNoCC;
inherit (stdenv) hostPlatform targetPlatform;
bintools = import ../bintools-wrapper {
bintools = binutils;
inherit # name
stdenvNoCC nativeTools noLibc nativeLibc nativePrefix
libc
coreutils shell gnugrep
extraPackages extraBuildCommands
buildPackages
useMacosReexportHack;
};
# Prefix for binaries. Customarily ends with a dash separator.
#
# TODO(@Ericson2314) Make unconditional, or optional but always true by
@@ -42,7 +53,6 @@ let
libc_dev = if libc == null then null else getDev libc;
libc_lib = if libc == null then null else getLib libc;
cc_solib = getLib cc;
binutils_bin = if nativeTools then "" else getBin binutils;
# The wrapper scripts use 'cat' and 'grep', so we may need coreutils.
coreutils_bin = if nativeTools then "" else getBin coreutils;
@@ -58,21 +68,6 @@ let
# unstable implementation detail, however.
infixSalt = dashlessTarget;
# The dynamic linker has different names on different platforms. This is a
# shell glob that ought to match it.
dynamicLinker =
/**/ if libc == null then null
else if targetPlatform.system == "i686-linux" then "${libc_lib}/lib/ld-linux.so.2"
else if targetPlatform.system == "x86_64-linux" then "${libc_lib}/lib/ld-linux-x86-64.so.2"
# ARM with a wildcard, which can be "" or "-armhf".
else if (with targetPlatform; isArm && isLinux) then "${libc_lib}/lib/ld-linux*.so.3"
else if targetPlatform.system == "aarch64-linux" then "${libc_lib}/lib/ld-linux-aarch64.so.1"
else if targetPlatform.system == "powerpc-linux" then "${libc_lib}/lib/ld.so.1"
else if targetPlatform.system == "mips64el-linux" then "${libc_lib}/lib/ld.so.1"
else if targetPlatform.isDarwin then "/usr/lib/dyld"
else if stdenv.lib.hasSuffix "pc-gnu" targetPlatform.config then "ld.so.1"
else null;
expand-response-params =
if buildPackages.stdenv.cc or null != null && buildPackages.stdenv.cc != "/dev/null"
then import ../expand-response-params { inherit (buildPackages) stdenv; }
@@ -80,6 +75,14 @@ let
in
# Ensure bintools matches
assert libc_bin == bintools.libc_bin;
assert libc_dev == bintools.libc_dev;
assert libc_lib == bintools.libc_lib;
assert nativeTools == bintools.nativeTools;
assert nativeLibc == bintools.nativeLibc;
assert nativePrefix == bintools.nativePrefix;
stdenv.mkDerivation {
name = targetPrefix
+ (if name != "" then name else "${ccName}-wrapper")
@@ -87,8 +90,8 @@ stdenv.mkDerivation {
preferLocalBuild = true;
inherit cc libc_bin libc_dev libc_lib binutils_bin coreutils_bin;
shell = getBin shell + shell.shellPath or "";
inherit cc libc_bin libc_dev libc_lib bintools coreutils_bin;
shell = getBin shell + stdenv.lib.optionalString (stdenv ? shellPath) stdenv.shellPath;
gnugrep_bin = if nativeTools then "" else gnugrep;
inherit targetPrefix infixSalt;
@@ -98,20 +101,18 @@ stdenv.mkDerivation {
passthru = {
# "cc" is the generic name for a C compiler, but there is no one for package
# providing the linker and related tools. The two we use now are GNU
# Binutils, and Apple's "cctools"; "binutils" as an attempt to find an
# Binutils, and Apple's "cctools"; "bintools" as an attempt to find an
# unused middle-ground name that evokes both.
bintools = binutils_bin;
inherit bintools;
inherit libc nativeTools nativeLibc nativePrefix isGNU isClang default_cxx_stdlib_compile;
emacsBufferSetup = pkgs: ''
; We should handle propagation here too
(mapc (lambda (arg)
(when (file-directory-p (concat arg "/include"))
(setenv "NIX_${infixSalt}_CFLAGS_COMPILE" (concat (getenv "NIX_${infixSalt}_CFLAGS_COMPILE") " -isystem " arg "/include")))
(when (file-directory-p (concat arg "/lib"))
(setenv "NIX_${infixSalt}_LDFLAGS" (concat (getenv "NIX_${infixSalt}_LDFLAGS") " -L" arg "/lib")))
(when (file-directory-p (concat arg "/lib64"))
(setenv "NIX_${infixSalt}_LDFLAGS" (concat (getenv "NIX_${infixSalt}_LDFLAGS") " -L" arg "/lib64")))) '(${concatStringsSep " " (map (pkg: "\"${pkg}\"") pkgs)}))
(mapc
(lambda (arg)
(when (file-directory-p (concat arg "/include"))
(setenv "NIX_${infixSalt}_CFLAGS_COMPILE" (concat (getenv "NIX_${infixSalt}_CFLAGS_COMPILE") " -isystem " arg "/include"))))
'(${concatStringsSep " " (map (pkg: "\"${pkg}\"") pkgs)}))
'';
};
@@ -141,45 +142,18 @@ stdenv.mkDerivation {
echo ${if targetPlatform.isDarwin then cc else nativePrefix} > $out/nix-support/orig-cc
ccPath="${if targetPlatform.isDarwin then cc else nativePrefix}/bin"
ldPath="${nativePrefix}/bin"
'' else ''
echo $cc > $out/nix-support/orig-cc
ccPath="${cc}/bin"
ldPath="${binutils_bin}/bin"
''
+ optionalString (targetPlatform.isSunOS && nativePrefix != "") ''
# Solaris needs an additional ld wrapper.
ldPath="${nativePrefix}/bin"
exec="$ldPath/${targetPrefix}ld"
wrap ld-solaris ${./ld-solaris-wrapper.sh}
'')
+ ''
# Create a symlink to as (the assembler). This is useful when a
# cc-wrapper is installed in a user environment, as it ensures that
# the right assembler is called.
if [ -e $ldPath/${targetPrefix}as ]; then
ln -s $ldPath/${targetPrefix}as $out/bin/${targetPrefix}as
fi
'' + (if !useMacosReexportHack then ''
wrap ${targetPrefix}ld ${./ld-wrapper.sh} ''${ld:-$ldPath/${targetPrefix}ld}
'' else ''
ldInner="${targetPrefix}ld-reexport-delegate"
wrap "$ldInner" ${./macos-sierra-reexport-hack.bash} ''${ld:-$ldPath/${targetPrefix}ld}
wrap "${targetPrefix}ld" ${./ld-wrapper.sh} "$out/bin/$ldInner"
unset ldInner
'') + ''
if [ -e ${binutils_bin}/bin/${targetPrefix}ld.gold ]; then
wrap ${targetPrefix}ld.gold ${./ld-wrapper.sh} ${binutils_bin}/bin/${targetPrefix}ld.gold
fi
if [ -e ${binutils_bin}/bin/ld.bfd ]; then
wrap ${targetPrefix}ld.bfd ${./ld-wrapper.sh} ${binutils_bin}/bin/${targetPrefix}ld.bfd
fi
# Create symlinks to everything in the bintools wrapper.
for bbin in $bintools/bin/*; do
mkdir -p "$out/bin"
ln -s "$bbin" "$out/bin/$(basename $bbin)"
done
# We export environment variables pointing to the wrapped nonstandard
# cmds, lest some lousy configure script use those to guess compiler
@@ -239,16 +213,28 @@ stdenv.mkDerivation {
ln -s $ccPath/${targetPrefix}ghdl $out/bin/${targetPrefix}ghdl
'';
propagatedBuildInputs = extraPackages;
propagatedBuildInputs = [ bintools ] ++ extraPackages;
setupHook = ./setup-hook.sh;
postFixup =
''
set -u
# Backwards compatability for packages expecting this file, e.g. with
# `$NIX_CC/nix-support/dynamic-linker`.
#
# TODO(@Ericson2314): Remove this after stable release and force
# everyone to refer to bintools-wrapper directly.
if [[ -f "$bintools/nix-support/dynamic-linker" ]]; then
ln -s "$bintools/nix-support/dynamic-linker" "$out/nix-support"
fi
if [[ -f "$bintools/nix-support/dynamic-linker-m32" ]]; then
ln -s "$bintools/nix-support/dynamic-linker-m32" "$out/nix-support"
fi
''
+ optionalString (libc != null) (''
+ optionalString (libc != null) ''
##
## General libc support
##
@@ -266,48 +252,9 @@ stdenv.mkDerivation {
# another -idirafter is necessary to add that directory again.
echo "-B${libc_lib}/lib/ -idirafter ${libc_dev}/include -idirafter ${cc}/lib/gcc/*/*/include-fixed" > $out/nix-support/libc-cflags
echo "-L${libc_lib}/lib" > $out/nix-support/libc-ldflags
echo "${libc_lib}" > $out/nix-support/orig-libc
echo "${libc_dev}" > $out/nix-support/orig-libc-dev
##
## Dynamic linker support
##
if [[ -z ''${dynamicLinker+x} ]]; then
echo "Don't know the name of the dynamic linker for platform '${targetPlatform.config}', so guessing instead." >&2
local dynamicLinker="${libc_lib}/lib/ld*.so.?"
fi
# Expand globs to fill array of options
dynamicLinker=($dynamicLinker)
case ''${#dynamicLinker[@]} in
0) echo "No dynamic linker found for platform '${targetPlatform.config}'." >&2;;
1) echo "Using dynamic linker: '$dynamicLinker'" >&2;;
*) echo "Multiple dynamic linkers found for platform '${targetPlatform.config}'." >&2;;
esac
if [ -n "''${dynamicLinker:-}" ]; then
echo $dynamicLinker > $out/nix-support/dynamic-linker
'' + (if targetPlatform.isDarwin then ''
printf "export LD_DYLD_PATH=%q\n" "$dynamicLinker" >> $out/nix-support/setup-hook
'' else ''
if [ -e ${libc_lib}/lib/32/ld-linux.so.2 ]; then
echo ${libc_lib}/lib/32/ld-linux.so.2 > $out/nix-support/dynamic-linker-m32
fi
local ldflagsBefore=(-dynamic-linker "$dynamicLinker")
'') + ''
fi
# The dynamic linker is passed in `ldflagsBefore' to allow
# explicit overrides of the dynamic linker by callers to gcc/ld
# (the *last* value counts, so ours should come first).
printWords "''${ldflagsBefore[@]}" > $out/nix-support/libc-ldflags-before
'')
''
+ optionalString (!nativeTools) ''
@@ -348,7 +295,6 @@ stdenv.mkDerivation {
# Propagate the wrapped cc so that if you install the wrapper,
# you get tools like gcov, the manpages, etc. as well (including
# for binutils and Glibc).
printWords ${cc} ${binutils_bin} ${if libc == null then "" else libc_bin} > $out/nix-support/propagated-user-env-packages
printWords ${cc.man or ""} > $man/nix-support/propagated-user-env-packages
''
@@ -358,14 +304,7 @@ stdenv.mkDerivation {
## Hardening support
##
# some linkers on some platforms don't support specific -z flags
export hardening_unsupported_flags=""
if [[ "$($ldPath/${targetPrefix}ld -z now 2>&1 || true)" =~ un(recognized|known)\ option ]]; then
hardening_unsupported_flags+=" bindnow"
fi
if [[ "$($ldPath/${targetPrefix}ld -z relro 2>&1 || true)" =~ un(recognized|known)\ option ]]; then
hardening_unsupported_flags+=" relro"
fi
''
+ optionalString hostPlatform.isCygwin ''
@@ -384,7 +323,7 @@ stdenv.mkDerivation {
''
+ extraBuildCommands;
inherit dynamicLinker expand-response-params;
inherit expand-response-params;
# for substitution in utils.sh
expandResponseParams = "${expand-response-params}/bin/expand-response-params";
@@ -395,7 +334,5 @@ stdenv.mkDerivation {
{ description =
stdenv.lib.attrByPath ["meta" "description"] "System C compiler" cc_
+ " (wrapper script)";
} // optionalAttrs useMacosReexportHack {
platforms = stdenv.lib.platforms.darwin;
};
}