122 lines
3.2 KiB
Bash
122 lines
3.2 KiB
Bash
#! @shell@
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set -eu -o pipefail +o posix
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shopt -s nullglob
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if (( "${NIX_DEBUG:-0}" >= 7 )); then
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set -x
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fi
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# N.B. Gnat is not used during bootstrapping, so we don't need to
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# worry about the old bash empty array `set -u` workarounds.
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path_backup="$PATH"
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# phase separation makes this look useless
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# shellcheck disable=SC2157
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if [ -n "@coreutils_bin@" ]; then
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PATH="@coreutils_bin@/bin"
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fi
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source @out@/nix-support/utils.sh
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if [ -z "${NIX_@infixSalt@_GNAT_WRAPPER_FLAGS_SET:-}" ]; then
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source @out@/nix-support/add-flags.sh
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fi
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# Figure out if linker flags should be passed. GCC prints annoying
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# warnings when they are not needed.
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dontLink=0
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nonFlagArgs=0
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for i in "$@"; do
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if [ "$i" = -c ]; then
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dontLink=1
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elif [ "$i" = -M ]; then
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dontLink=1
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elif [ "${i:0:1}" != - ]; then
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nonFlagArgs=1
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fi
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done
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# If we pass a flag like -Wl, then gcc will call the linker unless it
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# can figure out that it has to do something else (e.g., because of a
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# "-c" flag). So if no non-flag arguments are given, don't pass any
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# linker flags. This catches cases like "gcc" (should just print
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# "gcc: no input files") and "gcc -v" (should print the version).
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if [ "$nonFlagArgs" = 0 ]; then
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dontLink=1
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fi
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# Optionally filter out paths not refering to the store.
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params=("$@")
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if [[ "${NIX_ENFORCE_PURITY:-}" = 1 && -n "$NIX_STORE" ]]; then
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rest=()
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for p in "${params[@]}"; do
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if [ "${p:0:3}" = -L/ ] && badPath "${p:2}"; then
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skip "${p:2}"
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elif [ "${p:0:3}" = -I/ ] && badPath "${p:2}"; then
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skip "${p:2}"
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elif [ "${p:0:4}" = -aI/ ] && badPath "${p:3}"; then
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skip "${p:2}"
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elif [ "${p:0:4}" = -aO/ ] && badPath "${p:3}"; then
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skip "${p:2}"
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else
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rest+=("$p")
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fi
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done
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params=("${rest[@]}")
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fi
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# Clear march/mtune=native -- they bring impurity.
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if [ "$NIX_@infixSalt@_ENFORCE_NO_NATIVE" = 1 ]; then
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rest=()
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for p in "${params[@]}"; do
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if [[ "$p" = -m*=native ]]; then
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skip "$p"
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else
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rest+=("$p")
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fi
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done
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params=("${rest[@]}")
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fi
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# Add the flags for the GNAT compiler proper.
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extraAfter=($NIX_@infixSalt@_GNATFLAGS_COMPILE)
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extraBefore=()
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if [ "$(basename "$0")x" = "gnatmakex" ]; then
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extraBefore=("--GNATBIND=@out@/bin/gnatbind" "--GNATLINK=@out@/bin/gnatlink ")
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fi
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#if [ "$dontLink" != 1 ]; then
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# # Add the flags that should be passed to the linker (and prevent
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# # `ld-wrapper' from adding NIX_@infixSalt@_LDFLAGS again).
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# for i in $NIX_@infixSalt@_LDFLAGS_BEFORE; do
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# extraBefore+=("-largs" "$i")
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# done
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# for i in $NIX_@infixSalt@_LDFLAGS; do
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# if [ "${i:0:3}" = -L/ ]; then
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# extraAfter+=("$i")
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# else
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# extraAfter+=("-largs" "$i")
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# fi
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# done
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# export NIX_@infixSalt@_LDFLAGS_SET=1
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#fi
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# Optionally print debug info.
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if (( "${NIX_DEBUG:-0}" >= 1 )); then
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echo "extra flags before to @prog@:" >&2
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printf " %q\n" "${extraBefore[@]}" >&2
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echo "original flags to @prog@:" >&2
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printf " %q\n" "${params[@]}" >&2
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echo "extra flags after to @prog@:" >&2
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printf " %q\n" "${extraAfter[@]}" >&2
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fi
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PATH="$path_backup"
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exec @prog@ "${extraBefore[@]}" "${params[@]}" "${extraAfter[@]}"
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