nixpkgs/pkgs/build-support/wrapper-common/utils.bash

Ignoring revisions in .git-blame-ignore-revs. Click here to bypass and see the normal blame view.

167 lines
4.7 KiB
Bash
Raw Normal View History

# Accumulate suffixes for taking in the right input parameters with the `mangle*`
# functions below. See setup-hook for details.
accumulateRoles() {
declare -ga role_suffixes=()
if [ "${NIX_@wrapperName@_TARGET_BUILD_@suffixSalt@:-}" ]; then
role_suffixes+=('_FOR_BUILD')
fi
if [ "${NIX_@wrapperName@_TARGET_HOST_@suffixSalt@:-}" ]; then
role_suffixes+=('')
fi
if [ "${NIX_@wrapperName@_TARGET_TARGET_@suffixSalt@:-}" ]; then
role_suffixes+=('_FOR_TARGET')
fi
}
pkg-config-wrapper: mangle PKG_CONFIG_PATH{,_FOR_BUILD} correctly Previously, mangleVarList would be used which would concatenate the variables using a space as a separator. Paths are however separated by `:` in PKG_CONFIG_PATH leading to entries being broken. This is fixed by introducing mangleVarListGeneric which allows us to specify the desired separator. Reproducer for the issue prior to this change: $ nix-shell -A pkgsLLVM.wayland [nix-shell] $ pkg-config --libs expat Package expat was not found in the pkg-config search path. Perhaps you should add the directory containing `expat.pc' to the PKG_CONFIG_PATH environment variable No package 'expat' found $ printf 'Host: %s\nBuild: %s' $PKG_CONFIG_PATH $PKG_CONFIG_PATH_FOR_BUILD Host: /nix/store/5h308a4ab8w7prcp8iflh5pnl78mayi2-expat-2.2.10-x86_64-unknown-linux-gnu-dev/lib/pkgconfig:/nix/store/z3y9ska2h4l1map25m195iq577g7g3gz-libxml2-x86_64-unknown-linux-gnu-2.9.12-dev/lib/pkgconfig:/nix/store/lbz5m1s0r7zn0cxvl21czfspli6ribzb-zlib-1.2.11-x86_64-unknown-linux-gnu-dev/lib/pkgconfig:/nix/store/rfhvp8r8n3ygpzh8j0l34lk8hwwi3z0h-libffi-3.3-x86_64-unknown-linux-gnu-dev/lib/pkgconfig Build: /nix/store/dw11ywy7qwfz53qisz0dggbgix88jah2-wayland-1.19.0-bin/lib/pkgconfig strace reveals the issue: stat("/nix/store/dw11ywy7qwfz53qisz0dggbgix88jah2-wayland-1.19.0-bin/lib/pkgconfig /nix/store/5h308a4ab8w7prcp8iflh5pnl78mayi2-expat-2.2.10-x86_64-unknown-linux-gnu-dev/lib/pkgconfig/expat-uninstalled.pc", 0x7fff49829fa0) = -1 ENOENT (No such file or directory) In the pkg-config wrapper $PKG_CONFIG_PATH_FOR_BUILD and $PKG_CONFIG_PATH are concatenated with a space which leads to two paths being messed up. This issue likely only affects native cross compilation.
2021-05-17 15:12:39 +00:00
mangleVarListGeneric() {
local sep="$1"
shift
local var="$1"
shift
local -a role_suffixes=("$@")
local outputVar="${var}_@suffixSalt@"
declare -gx "$outputVar"+=''
# For each role we serve, we accumulate the input parameters into our own
# cc-wrapper-derivation-specific environment variables.
for suffix in "${role_suffixes[@]}"; do
local inputVar="${var}${suffix}"
if [ -v "$inputVar" ]; then
export "${outputVar}+=${!outputVar:+$sep}${!inputVar}"
fi
done
}
pkg-config-wrapper: mangle PKG_CONFIG_PATH{,_FOR_BUILD} correctly Previously, mangleVarList would be used which would concatenate the variables using a space as a separator. Paths are however separated by `:` in PKG_CONFIG_PATH leading to entries being broken. This is fixed by introducing mangleVarListGeneric which allows us to specify the desired separator. Reproducer for the issue prior to this change: $ nix-shell -A pkgsLLVM.wayland [nix-shell] $ pkg-config --libs expat Package expat was not found in the pkg-config search path. Perhaps you should add the directory containing `expat.pc' to the PKG_CONFIG_PATH environment variable No package 'expat' found $ printf 'Host: %s\nBuild: %s' $PKG_CONFIG_PATH $PKG_CONFIG_PATH_FOR_BUILD Host: /nix/store/5h308a4ab8w7prcp8iflh5pnl78mayi2-expat-2.2.10-x86_64-unknown-linux-gnu-dev/lib/pkgconfig:/nix/store/z3y9ska2h4l1map25m195iq577g7g3gz-libxml2-x86_64-unknown-linux-gnu-2.9.12-dev/lib/pkgconfig:/nix/store/lbz5m1s0r7zn0cxvl21czfspli6ribzb-zlib-1.2.11-x86_64-unknown-linux-gnu-dev/lib/pkgconfig:/nix/store/rfhvp8r8n3ygpzh8j0l34lk8hwwi3z0h-libffi-3.3-x86_64-unknown-linux-gnu-dev/lib/pkgconfig Build: /nix/store/dw11ywy7qwfz53qisz0dggbgix88jah2-wayland-1.19.0-bin/lib/pkgconfig strace reveals the issue: stat("/nix/store/dw11ywy7qwfz53qisz0dggbgix88jah2-wayland-1.19.0-bin/lib/pkgconfig /nix/store/5h308a4ab8w7prcp8iflh5pnl78mayi2-expat-2.2.10-x86_64-unknown-linux-gnu-dev/lib/pkgconfig/expat-uninstalled.pc", 0x7fff49829fa0) = -1 ENOENT (No such file or directory) In the pkg-config wrapper $PKG_CONFIG_PATH_FOR_BUILD and $PKG_CONFIG_PATH are concatenated with a space which leads to two paths being messed up. This issue likely only affects native cross compilation.
2021-05-17 15:12:39 +00:00
mangleVarList() {
mangleVarListGeneric " " "$@"
}
mangleVarBool() {
local var="$1"
shift
local -a role_suffixes=("$@")
local outputVar="${var}_@suffixSalt@"
declare -gxi "${outputVar}+=0"
for suffix in "${role_suffixes[@]}"; do
local inputVar="${var}${suffix}"
if [ -v "$inputVar" ]; then
# "1" in the end makes `let` return success error code when
# expression itself evaluates to zero.
# We don't use `|| true` because that would silence actual
# syntax errors from bad variable values.
let "${outputVar} |= ${!inputVar:-0}" "1"
fi
done
}
# Combine a singular value from all roles. If multiple roles are being served,
# and the value differs in these roles then the request is impossible to
# satisfy and we abort immediately.
mangleVarSingle() {
local var="$1"
shift
local -a role_suffixes=("$@")
local outputVar="${var}_@suffixSalt@"
for suffix in "${role_suffixes[@]}"; do
local inputVar="${var}${suffix}"
if [ -v "$inputVar" ]; then
if [ -v "$outputVar" ]; then
if [ "${!outputVar}" != "${!inputVar}" ]; then
{
echo "Multiple conflicting values defined for $outputVar"
echo "Existing value is ${!outputVar}"
echo "Attempting to set to ${!inputVar} via $inputVar"
} >&2
exit 1
fi
else
declare -gx ${outputVar}="${!inputVar}"
fi
fi
done
}
skip () {
if (( "${NIX_DEBUG:-0}" >= 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=$1
2014-10-10 12:25:23 +00:00
# Relative paths are okay (since they're presumably relative to
# the temporary build directory).
2014-10-10 12:25:23 +00:00
if [ "${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#"${NIX_STORE}"}" = "$p" -a \
"${p#"${NIX_BUILD_TOP}"}" = "$p" -a \
"${p#/tmp}" = "$p" -a \
"${p#"${TMP:-/tmp}"}" = "$p" -a \
"${p#"${TMPDIR:-/tmp}"}" = "$p" -a \
"${p#"${TEMP:-/tmp}"}" = "$p" -a \
"${p#"${TEMPDIR:-/tmp}"}" = "$p"
}
expandResponseParams() {
declare -ga params=("$@")
local arg
for arg in "$@"; do
if [[ "$arg" == @* ]]; then
# phase separation makes this look useless
# shellcheck disable=SC2157
if [ -x "@expandResponseParams@" ]; then
# params is used by caller
#shellcheck disable=SC2034
readarray -d '' params < <("@expandResponseParams@" "$@")
return 0
fi
fi
done
}
checkLinkType() {
local arg
type="dynamic"
for arg in "$@"; do
if [[ "$arg" = -static ]]; then
type="static"
elif [[ "$arg" = -static-pie ]]; then
type="static-pie"
fi
done
echo "$type"
}
# When building static-pie executables we cannot have rpath
# set. At least glibc requires rpath to be empty
filterRpathFlags() {
local linkType=$1 ret i
shift
if [[ "$linkType" == "static-pie" ]]; then
while [[ "$#" -gt 0 ]]; do
i="$1"; shift 1
if [[ "$i" == -rpath ]]; then
# also skip its argument
shift
else
ret+=("$i")
fi
done
else
ret=("$@")
fi
echo "${ret[@]}"
}