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Partially merge gcc-wrapper and clang-wrapper

Having a separate clang-wrapper is really unfortunate because it
means that we'll forever forget to apply changes to both (e.g.
commit 289895fe2c). This commit
gets rid of the redundant copies of ld-wrapper.sh and utils.sh.
This commit is contained in:
Eelco Dolstra 2014-07-02 20:10:40 +02:00
parent fd1a5d8531
commit a4f9b9c8b5
5 changed files with 6 additions and 194 deletions

View file

@ -21,4 +21,4 @@ if test -e @out@/nix-support/libc-ldflags-before; then
export NIX_LDFLAGS_BEFORE="$(cat @out@/nix-support/libc-ldflags-before) $NIX_LDFLAGS_BEFORE"
fi
export NIX_CLANG_WRAPPER_FLAGS_SET=1
export NIX_GCC_WRAPPER_FLAGS_SET=1

View file

@ -1,10 +1,10 @@
#! @shell@ -e
if test -n "$NIX_CLANG_WRAPPER_START_HOOK"; then
source "$NIX_CLANG_WRAPPER_START_HOOK"
if test -n "$NIX_GCC_WRAPPER_START_HOOK"; then
source "$NIX_GCC_WRAPPER_START_HOOK"
fi
if test -z "$NIX_CLANG_WRAPPER_FLAGS_SET"; then
if test -z "$NIX_GCC_WRAPPER_FLAGS_SET"; then
source @out@/nix-support/add-flags.sh
fi

View file

@ -29,8 +29,8 @@ stdenv.mkDerivation {
builder = ./builder.sh;
setupHook = ./setup-hook.sh;
clangWrapper = ./clang-wrapper.sh;
ldWrapper = ./ld-wrapper.sh;
utils = ./utils.sh;
ldWrapper = ../gcc-wrapper/ld-wrapper.sh;
utils = ../gcc-wrapper/utils.sh;
addFlags = ./add-flags;
inherit nativeTools nativeLibc nativePrefix clang clangVersion libcxx;

View file

@ -1,164 +0,0 @@
#! @shell@ -e
if test -n "$NIX_LD_WRAPPER_START_HOOK"; then
source "$NIX_LD_WRAPPER_START_HOOK"
fi
if test -z "$NIX_CLANG_WRAPPER_FLAGS_SET"; then
source @out@/nix-support/add-flags.sh
fi
source @out@/nix-support/utils.sh
# Optionally filter out paths not refering to the store.
params=("$@")
if test "$NIX_ENFORCE_PURITY" = "1" -a -n "$NIX_STORE" \
-a \( -z "$NIX_IGNORE_LD_THROUGH_CLANG" -o -z "$NIX_LDFLAGS_SET" \); then
rest=()
n=0
while test $n -lt ${#params[*]}; do
p=${params[n]}
p2=${params[$((n+1))]}
if test "${p:0:3}" = "-L/" && badPath "${p:2}"; then
skip $p
elif test "$p" = "-L" && badPath "$p2"; then
n=$((n + 1)); skip $p2
elif test "$p" = "-rpath" && badPath "$p2"; then
n=$((n + 1)); skip $p2
elif test "$p" = "-dynamic-linker" && badPath "$p2"; then
n=$((n + 1)); skip $p2
elif test "${p:0:1}" = "/" && badPath "$p"; then
# We cannot skip this; barf.
echo "impure path \`$p' used in link" >&2
exit 1
elif test "${p:0:9}" = "--sysroot"; then
# Our ld is not built with sysroot support (Can we fix that?)
:
else
rest=("${rest[@]}" "$p")
fi
n=$((n + 1))
done
params=("${rest[@]}")
fi
extra=()
extraBefore=()
if test -z "$NIX_LDFLAGS_SET"; then
extra+=($NIX_LDFLAGS $NIX_LDFLAGS_AFTER)
extraBefore+=($NIX_LDFLAGS_BEFORE)
fi
# Add all used dynamic libraries to the rpath.
if test "$NIX_DONT_SET_RPATH" != "1"; then
libPath=""
addToLibPath() {
local path="$1"
if test "${path:0:1}" != "/"; then return 0; fi
case "$path" in
*..*|*./*|*/.*|*//*)
local path2
if path2=$(readlink -f "$path"); then
path="$path2"
fi
;;
esac
case $libPath in
*\ $path\ *) return 0 ;;
esac
libPath="$libPath $path "
}
addToRPath() {
# If the path is not in the store, don't add it to the rpath.
# This typically happens for libraries in /tmp that are later
# copied to $out/lib. If not, we're screwed.
if test "${1:0:${#NIX_STORE}}" != "$NIX_STORE"; then return 0; fi
case $rpath in
*\ $1\ *) return 0 ;;
esac
rpath="$rpath $1 "
}
libs=""
addToLibs() {
libs="$libs $1"
}
rpath=""
# First, find all -L... switches.
allParams=("${params[@]}" ${extra[@]})
n=0
while test $n -lt ${#allParams[*]}; do
p=${allParams[n]}
p2=${allParams[$((n+1))]}
if test "${p:0:3}" = "-L/"; then
addToLibPath ${p:2}
elif test "$p" = "-L"; then
addToLibPath ${p2}
n=$((n + 1))
elif test "$p" = "-l"; then
addToLibs ${p2}
n=$((n + 1))
elif test "${p:0:2}" = "-l"; then
addToLibs ${p:2}
elif test "$p" = "-dynamic-linker"; then
# Ignore the dynamic linker argument, or it
# will get into the next 'elif'. We don't want
# the dynamic linker path rpath to go always first.
n=$((n + 1))
elif [[ "$p" =~ ^[^-].*\.so($|\.) ]]; then
# This is a direct reference to a shared library, so add
# its directory to the rpath.
path="$(dirname "$p")";
addToRPath "${path}"
fi
n=$((n + 1))
done
# Second, for each directory in the library search path (-L...),
# see if it contains a dynamic library used by a -l... flag. If
# so, add the directory to the rpath.
# It's important to add the rpath in the order of -L..., so
# the link time chosen objects will be those of runtime linking.
for i in $libPath; do
for j in $libs; do
if test -f "$i/lib$j.so"; then
addToRPath $i
break
fi
done
done
# Finally, add `-rpath' switches.
for i in $rpath; do
extra=(${extra[@]} -rpath $i)
done
fi
# Optionally print debug info.
if test "$NIX_DEBUG" = "1"; then
echo "original flags to @ld@:" >&2
for i in "${params[@]}"; do
echo " $i" >&2
done
echo "extra flags to @ld@:" >&2
for i in ${extra[@]}; do
echo " $i" >&2
done
fi
if test -n "$NIX_LD_WRAPPER_EXEC_HOOK"; then
source "$NIX_LD_WRAPPER_EXEC_HOOK"
fi
exec @ld@ ${extraBefore[@]} "${params[@]}" ${extra[@]}

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@ -1,24 +0,0 @@
skip () {
if test "$NIX_DEBUG" = "1"; then
echo "skipping impure path $1" >&2
fi
}
# Checks whether a path is impure. E.g., `/lib/foo.so' is impure, but
# `/nix/store/.../lib/foo.so' isn't.
badPath() {
local p=$1
# Relative paths are okay (since they're presumably relative to
# the temporary build directory).
if test "${p:0:1}" != "/"; then return 1; fi
# Otherwise, the path should refer to the store or some temporary
# directory (including the build directory).
test \
"$p" != "/dev/null" -a \
"${p:0:${#NIX_STORE}}" != "$NIX_STORE" -a \
"${p:0:4}" != "/tmp" -a \
"${p:0:${#NIX_BUILD_TOP}}" != "$NIX_BUILD_TOP"
}