Commit 6e21d863 authored by Valentin Reis's avatar Valentin Reis
Browse files

refactor

parent 061ce89c
Pipeline #5243 failed with stage
in 10 seconds
#! @shell@ -e
if [ -n "$NIX_CC_WRAPPER_START_HOOK" ]; then
source "$NIX_CC_WRAPPER_START_HOOK"
fi
if [ -z "$NIX_CC_WRAPPER_FLAGS_SET" ]; then
source @out@/nix-support/add-flags.sh
fi
source @out@/nix-support/utils.sh
if [ -e @cc_dir@/nix-support/compiler_setup.sh ]; then
source @cc_dir@/nix-support/compiler_setup.sh
fi
# Figure out if linker flags should be passed. GCC prints annoying
# warnings when they are not needed.
dontLink=0
getVersion=0
nonFlagArgs=0
for i in "$@"; do
if [ "$i" = -c ]; then
dontLink=1
elif [ "$i" = -S ]; then
dontLink=1
elif [ "$i" = -E ]; then
dontLink=1
elif [ "$i" = -E ]; then
dontLink=1
elif [ "$i" = -M ]; then
dontLink=1
elif [ "$i" = -MM ]; then
dontLink=1
elif [ "$i" = -x ]; then
# At least for the cases c-header or c++-header we should set dontLink.
# I expect no one use -x other than making precompiled headers.
dontLink=1
elif [ "${i:0:1}" != - ]; then
nonFlagArgs=1
elif [ "$i" = -m32 ]; then
if [ -e @out@/nix-support/dynamic-linker-m32 ]; then
NIX_LDFLAGS="$NIX_LDFLAGS -dynamic-linker $(cat @out@/nix-support/dynamic-linker-m32)"
fi
fi
done
# If we pass a flag like -Wl, then gcc will call the linker unless it
# can figure out that it has to do something else (e.g., because of a
# "-c" flag). So if no non-flag arguments are given, don't pass any
# linker flags. This catches cases like "gcc" (should just print
# "gcc: no input files") and "gcc -v" (should print the version).
if [ "$nonFlagArgs" = 0 ]; then
dontLink=1
fi
# Optionally filter out paths not refering to the store.
params=("$@")
if [ "$NIX_ENFORCE_PURITY" = 1 -a -n "$NIX_STORE" ]; then
rest=()
n=0
while [ $n -lt ${#params[*]} ]; do
p=${params[n]}
p2=${params[$((n+1))]}
if [ "${p:0:3}" = -L/ ] && badPath "${p:2}"; then
skip $p
elif [ "$p" = -L ] && badPath "$p2"; then
n=$((n + 1)); skip $p2
elif [ "${p:0:3}" = -I/ ] && badPath "${p:2}"; then
skip $p
elif [ "$p" = -I ] && badPath "$p2"; then
n=$((n + 1)); skip $p2
elif [ "$p" = -isystem ] && badPath "$p2"; then
n=$((n + 1)); skip $p2
else
rest=("${rest[@]}" "$p")
fi
n=$((n + 1))
done
params=("${rest[@]}")
fi
if [[ "@prog@" = *++ ]]; then
if echo "$@" | grep -qv -- -nostdlib; then
NIX_CFLAGS_COMPILE="$NIX_CFLAGS_COMPILE ${NIX_CXXSTDLIB_COMPILE-@default_cxx_stdlib_compile@}"
NIX_CFLAGS_LINK="$NIX_CFLAGS_LINK $NIX_CXXSTDLIB_LINK"
fi
fi
# Add the flags for the C compiler proper.
extraAfter=($NIX_CFLAGS_COMPILE)
extraBefore=()
# When enforcing purity, pretend gcc can't find the current date and
# time
if [ "$NIX_ENFORCE_PURITY" = 1 ]; then
extraAfter+=('-D__DATE__="Jan 01 1970"'
'-D__TIME__="00:00:01"'
-Wno-builtin-macro-redefined)
fi
if [ "$dontLink" != 1 ]; then
# Add the flags that should only be passed to the compiler when
# linking.
extraAfter+=($NIX_CFLAGS_LINK)
# Add the flags that should be passed to the linker (and prevent
# `ld-wrapper' from adding NIX_LDFLAGS again).
for i in $NIX_LDFLAGS_BEFORE; do
extraBefore=(${extraBefore[@]} "-Wl,$i")
done
for i in $NIX_LDFLAGS; do
if [ "${i:0:3}" = -L/ ]; then
extraAfter+=("$i")
else
extraAfter+=("-Wl,$i")
fi
done
export NIX_LDFLAGS_SET=1
fi
# As a very special hack, if the arguments are just `-v', then don't
# add anything. This is to prevent `gcc -v' (which normally prints
# out the version number and returns exit code 0) from printing out
# `No input files specified' and returning exit code 1.
if [ "$*" = -v ]; then
extraAfter=()
extraBefore=()
fi
# Optionally print debug info.
if [ -n "$NIX_DEBUG" ]; then
echo "original flags to @prog@:" >&2
for i in "${params[@]}"; do
echo " $i" >&2
done
echo "extraBefore flags to @prog@:" >&2
for i in ${extraBefore[@]}; do
echo " $i" >&2
done
echo "extraAfter flags to @prog@:" >&2
for i in ${extraAfter[@]}; do
echo " $i" >&2
done
fi
if [ -n "$NIX_CC_WRAPPER_EXEC_HOOK" ]; then
source "$NIX_CC_WRAPPER_EXEC_HOOK"
fi
exec @prog@ ${extraBefore[@]} "${params[@]}" "${extraAfter[@]}"
# The Nixpkgs CC 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. So we use a wrapper
# script that sets up the right environment variables so that the
# compiler and the linker just "work".
{ name ? "", stdenv, nativeTools, nativeLibc, nativePrefix ? ""
, cc ? null, libc ? null, binutils ? null, coreutils ? null, shell ? stdenv.shell
, zlib ? null, extraPackages ? [], extraBuildCommands ? ""
, dyld ? null # TODO: should this be a setup-hook on dyld?
, isGNU ? false, isClang ? cc.isClang or false
}:
with stdenv.lib;
assert nativeTools -> nativePrefix != "";
assert !nativeTools -> cc != null && binutils != null && coreutils != null;
assert !nativeLibc -> libc != null;
# For ghdl (the vhdl language provider to gcc) we need zlib in the wrapper.
assert cc.langVhdl or false -> zlib != null;
let
ccVersion = (builtins.parseDrvName cc.name).version;
ccName = (builtins.parseDrvName cc.name).name;
in
stdenv.mkDerivation {
name =
(if name != "" then name else ccName + "-wrapper") +
(if cc != null && ccVersion != "" then "-" + ccVersion else "");
preferLocalBuild = true;
inherit cc shell;
cc_dir = cc;
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;
passthru = { inherit nativeTools nativeLibc nativePrefix isGNU isClang; };
buildCommand =
''
mkdir -p $out/bin $out/nix-support
wrap() {
local dst="$1"
local wrapper="$2"
export prog="$3"
substituteAll "$wrapper" "$out/bin/$dst"
chmod +x "$out/bin/$dst"
}
''
+ optionalString (!nativeLibc) (if (!stdenv.isDarwin) then ''
dynamicLinker="$libc/lib/$dynamicLinker"
echo $dynamicLinker > $out/nix-support/dynamic-linker
if [ -e $libc/lib/32/ld-linux.so.2 ]; then
echo $libc/lib/32/ld-linux.so.2 > $out/nix-support/dynamic-linker-m32
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).
echo "-dynamic-linker" $dynamicLinker > $out/nix-support/libc-ldflags-before
'' else ''
echo $dynamicLinker > $out/nix-support/dynamic-linker
echo "export LD_DYLD_PATH=\"$dynamicLinker\"" >> $out/nix-support/setup-hook
'')
+ optionalString (!nativeLibc) ''
# The "-B$libc/lib/" flag is a quick hack to force gcc to link
# against the crt1.o from our own glibc, rather than the one in
# /usr/lib. (This is only an issue when using an `impure'
# compiler/linker, i.e., one that searches /usr/lib and so on.)
#
# Unfortunately, setting -B appears to override the default search
# path. Thus, the gcc-specific "../includes-fixed" directory is
# now longer searched and glibc's <limits.h> header fails to
# compile, because it uses "#include_next <limits.h>" to find the
# limits.h file in ../includes-fixed. To remedy the problem,
# another -idirafter is necessary to add that directory again.
echo "-B$libc/lib/ -idirafter $libc/include -idirafter $cc/lib/gcc/*/*/include-fixed" > $out/nix-support/libc-cflags
echo "-L$libc/lib" > $out/nix-support/libc-ldflags
echo $libc > $out/nix-support/orig-libc
''
+ (if nativeTools then ''
ccPath="${if stdenv.isDarwin then cc else nativePrefix}/bin"
ldPath="${nativePrefix}/bin"
'' else ''
echo $cc > $out/nix-support/orig-cc
# GCC shows $cc/lib in `gcc -print-search-dirs', but not
# $cc/lib64 (even though it does actually search there...)..
# This confuses libtool. So add it to the compiler tool search
# path explicitly.
if [ -e "$cc/lib64" -a ! -L "$cc/lib64" ]; then
ccLDFlags+=" -L$cc/lib64"
ccCFlags+=" -B$cc/lib64"
fi
ccLDFlags+=" -L$cc/lib"
${optionalString cc.langVhdl or false ''
ccLDFlags+=" -L${zlib}/lib"
''}
# Find the gcc libraries path (may work only without multilib).
${optionalString cc.langAda or false ''
basePath=`echo $cc/lib/*/*/*`
ccCFlags+=" -B$basePath -I$basePath/adainclude"
gnatCFlags="-aI$basePath/adainclude -aO$basePath/adalib"
echo "$gnatCFlags" > $out/nix-support/gnat-cflags
''}
if [ -e $ccPath/clang ]; then
# Need files like crtbegin.o from gcc
# It's unclear if these will ever be provided by an LLVM project
ccCFlags="$ccCFlags -B$basePath"
ccCFlags="$ccCFlags -isystem$cc/lib/clang/$ccVersion/include"
fi
echo "$ccLDFlags" > $out/nix-support/cc-ldflags
echo "$ccCFlags" > $out/nix-support/cc-cflags
ccPath="$cc/bin"
ldPath="$binutils/bin"
# 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).
echo $cc $binutils $libc > $out/nix-support/propagated-user-env-packages
echo ${toString extraPackages} > $out/nix-support/propagated-native-build-inputs
''
+ optionalString (stdenv.isSunOS && nativePrefix != "") ''
# Solaris needs an additional ld wrapper.
ldPath="${nativePrefix}/bin"
ld="$out/bin/ld-solaris"
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/as ]; then
ln -s $ldPath/as $out/bin/as
fi
wrap ld ${./ld-wrapper.sh} ''${ld:-$ldPath/ld}
if [ -e $binutils/bin/ld.gold ]; then
wrap ld.gold ${./ld-wrapper.sh} $binutils/bin/ld.gold
fi
if [ -e $binutils/bin/ld.bfd ]; then
wrap ld.bfd ${./ld-wrapper.sh} $binutils/bin/ld.bfd
fi
export real_cc=cc
export real_cxx=c++
export default_cxx_stdlib_compile="${
if stdenv.isLinux && !(cc.isGNU or false)
then "-isystem $(echo -n ${cc.gcc}/include/c++/*) -isystem $(echo -n ${cc.gcc}/include/c++/*)/$(${cc.gcc}/bin/gcc -dumpmachine)"
else ""
}"
if [ -e $ccPath/gcc ]; then
wrap gcc ${./cc-wrapper.sh} $ccPath/gcc
ln -s gcc $out/bin/cc
export real_cc=gcc
export real_cxx=g++
elif [ -a $ccPath/icc ]; then
wrap icc ${./cc-wrapper.sh} $ccPath/icc
ln -s icc $out/bin/cc
export real_cc=icc
elif [ -e $ccPath/clang ]; then
wrap clang ${./cc-wrapper.sh} $ccPath/clang
ln -s clang $out/bin/cc
fi
if [ -e $ccPath/g++ ]; then
wrap g++ ${./cc-wrapper.sh} $ccPath/g++
ln -s g++ $out/bin/c++
elif [ -e $ccPath/icpc ]; then
wrap icpc ${./cc-wrapper.sh} $ccPath/icpc
ln -s icpc $out/bin/c++
elif [ -e $ccPath/clang++ ]; then
wrap clang++ ${./cc-wrapper.sh} $ccPath/clang++
ln -s clang++ $out/bin/c++
fi
if [ -e $ccPath/cpp ]; then
wrap cpp ${./cc-wrapper.sh} $ccPath/cpp
fi
''
+ optionalString cc.langFortran or false ''
if [ -e $ccPath/gfortran ]; then
wrap gfortran ${./cc-wrapper.sh} $ccPath/gfortran
ln -sv gfortran $out/bin/g77
ln -sv gfortran $out/bin/f77
elif [ -e $ccPath/ifort ]; then
wrap ifort ${./cc-wrapper.sh} $ccPath/ifort
ln -sv ifort $out/bin/gfortran
ln -sv ifort $out/bin/g77
ln -sv ifort $out/bin/f77
fi
''
+ optionalString cc.langJava or false ''
wrap gcj ${./cc-wrapper.sh} $ccPath/gcj
''
+ optionalString cc.langGo or false ''
wrap gccgo ${./cc-wrapper.sh} $ccPath/gccgo
''
+ optionalString cc.langAda or false ''
wrap gnatgcc ${./cc-wrapper.sh} $ccPath/gnatgcc
wrap gnatmake ${./gnat-wrapper.sh} $ccPath/gnatmake
wrap gnatbind ${./gnat-wrapper.sh} $ccPath/gnatbind
wrap gnatlink ${./gnatlink-wrapper.sh} $ccPath/gnatlink
''
+ optionalString cc.langVhdl or false ''
ln -s $ccPath/ghdl $out/bin/ghdl
''
+ ''
substituteAll ${./setup-hook.sh} $out/nix-support/setup-hook.tmp
cat $out/nix-support/setup-hook.tmp >> $out/nix-support/setup-hook
rm $out/nix-support/setup-hook.tmp
substituteAll ${./add-flags} $out/nix-support/add-flags.sh
cp -p ${./utils.sh} $out/nix-support/utils.sh
''
+ extraBuildCommands;
# The dynamic linker has different names on different Linux platforms.
dynamicLinker =
if !nativeLibc then
(if stdenv.system == "i686-linux" then "ld-linux.so.2" else
if stdenv.system == "x86_64-linux" then "ld-linux-x86-64.so.2" else
if stdenv.system == "powerpc64-linux" then "ld64.so.1" else
# ARM with a wildcard, which can be "" or "-armhf".
if stdenv.isArm then "ld-linux*.so.3" else
if stdenv.system == "powerpc-linux" then "ld.so.1" else
if stdenv.system == "mips64el-linux" then "ld.so.1" else
if stdenv.system == "x86_64-darwin" then "/usr/lib/dyld" else
abort "Don't know the name of the dynamic linker for this platform.")
else "";
crossAttrs = {
shell = shell.crossDrv + shell.crossDrv.shellPath;
libc = stdenv.ccCross.libc;
coreutils = coreutils.crossDrv;
binutils = binutils.crossDrv;
cc = cc.crossDrv;
#
# This is not the best way to do this. I think the reference should be
# the style in the gcc-cross-wrapper, but to keep a stable stdenv now I
# do this sufficient if/else.
dynamicLinker =
(if stdenv.cross.arch == "arm" then "ld-linux.so.3" else
if stdenv.cross.arch == "mips" then "ld.so.1" else
if stdenv.lib.hasSuffix "pc-gnu" stdenv.cross.config then "ld.so.1" else
abort "don't know the name of the dynamic linker for this platform");
};
meta =
let cc_ = if cc != null then cc else {}; in
(if cc_ ? meta then removeAttrs cc.meta ["priority"] else {}) //
{ description =
stdenv.lib.attrByPath ["meta" "description"] "System C compiler" cc_
+ " (wrapper script)";
};
}
#! @shell@ -e
if [ -n "$NIX_GNAT_WRAPPER_START_HOOK" ]; then
source "$NIX_GNAT_WRAPPER_START_HOOK"
fi
if [ -z "$NIX_GNAT_WRAPPER_FLAGS_SET" ]; then
source @out@/nix-support/add-flags.sh
fi
source @out@/nix-support/utils.sh
# Figure out if linker flags should be passed. GCC prints annoying
# warnings when they are not needed.
dontLink=0
getVersion=0
nonFlagArgs=0
for i in "$@"; do
if [ "$i" = -c ]; then
dontLink=1
elif [ "$i" = -M ]; then
dontLink=1
elif [ "${i:0:1}" != - ]; then
nonFlagArgs=1
elif [ "$i" = -m32 ]; then
if [ -e @out@/nix-support/dynamic-linker-m32 ]; then
NIX_LDFLAGS="$NIX_LDFLAGS -dynamic-linker $(cat @out@/nix-support/dynamic-linker-m32)"
fi
fi
done
# If we pass a flag like -Wl, then gcc will call the linker unless it
# can figure out that it has to do something else (e.g., because of a
# "-c" flag). So if no non-flag arguments are given, don't pass any
# linker flags. This catches cases like "gcc" (should just print
# "gcc: no input files") and "gcc -v" (should print the version).
if [ "$nonFlagArgs" = 0 ]; then
dontLink=1
fi
# Optionally filter out paths not refering to the store.
params=("$@")
if [ "$NIX_ENFORCE_PURITY" = 1 -a -n "$NIX_STORE" ]; then
rest=()
n=0
while [ $n -lt ${#params[*]} ]; do
p=${params[n]}
p2=${params[$((n+1))]}
if [ "${p:0:3}" = -L/ ] && badPath "${p:2}"; then
skip $p
elif [ "${p:0:3}" = -I/ ] && badPath "${p:2}"; then
skip $p
elif [ "${p:0:4}" = -aI/ ] && badPath "${p:3}"; then
skip $p
elif [ "${p:0:4}" = -aO/ ] && badPath "${p:3}"; then
skip $p
else
rest=("${rest[@]}" "$p")
fi
n=$((n + 1))
done
params=("${rest[@]}")
fi
# Add the flags for the GNAT compiler proper.
extraAfter=($NIX_GNATFLAGS_COMPILE)
extraBefore=()
if [ "`basename $0`x" = "gnatmakex" ]; then
extraBefore=("--GNATBIND=@out@/bin/gnatbind --GNATLINK=@out@/bin/gnatlink ")
fi
# Add the flags that should be passed to the linker (and prevent
# `ld-wrapper' from adding NIX_LDFLAGS again).
#for i in $NIX_LDFLAGS_BEFORE; do
# extraBefore=(${extraBefore[@]} "-largs $i")
#done
# Optionally print debug info.
if [ -n "$NIX_DEBUG" ]; then
echo "original flags to @prog@:" >&2
for i in "${params[@]}"; do
echo " $i" >&2
done
echo "extraBefore flags to @prog@:" >&2
for i in ${extraBefore[@]}; do
echo " $i" >&2
done
echo "extraAfter flags to @prog@:" >&2
for i in ${extraAfter[@]}; do
echo " $i" >&2
done
fi
if [ -n "$NIX_GNAT_WRAPPER_EXEC_HOOK" ]; then
source "$NIX_GNAT_WRAPPER_EXEC_HOOK"
fi
exec @prog@ ${extraBefore[@]} "${params[@]}" ${extraAfter[@]}
#! @shell@ -e
# Add the flags for the GNAT compiler proper.
extraAfter="--GCC=@out@/bin/gcc"
extraBefore=()
# Add the flags that should be passed to the linker (and prevent
# `ld-wrapper' from adding NIX_LDFLAGS again).
#for i in $NIX_LDFLAGS_BEFORE; do
# extraBefore=(${extraBefore[@]} "-largs $i")
#done
# Optionally print debug info.
if [ -n "$NIX_DEBUG" ]; then
echo "original flags to @prog@:" >&2
for i in "$@"; do
echo " $i" >&2
done
echo "extraBefore flags to @prog@:" >&2
for i in ${extraBefore[@]}; do
echo " $i" >&2
done
echo "extraAfter flags to @prog@:" >&2
for i in ${extraAfter[@]}; do
echo " $i" >&2
done
fi
if [ -n "$NIX_GNAT_WRAPPER_EXEC_HOOK" ]; then
source "$NIX_GNAT_WRAPPER_EXEC_HOOK"
fi
exec @prog@ ${extraBefore[@]} "$@" ${extraAfter[@]}
#!/bin/bash
set -e
set -u
# I've also tried adding -z direct and -z lazyload, but it gave too many problems with C++ exceptions :'(
# Also made sure libgcc would not be lazy-loaded, as suggested here: https://www.illumos.org/issues/2534#note-3
# but still no success.
cmd="@prog@ -z ignore"
args=("$@");
# This loop makes sure all -L arguments are before -l arguments, or ld may complain it cannot find a library.
# GNU binutils does not have this problem:
# http://stackoverflow.com/questions/5817269/does-the-order-of-l-and-l-options-in-the-gnu-linker-matter
i=0;
while [[ $i -lt $# ]]; do
case "${args[$i]}" in