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author | Robin Gloster <mail@glob.in> | 2016-03-28 15:16:29 +0000 |
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committer | Robin Gloster <mail@glob.in> | 2016-03-28 15:16:29 +0000 |
commit | f60c9df0ba66767dfa64bf2fb95eb6776cafa2c3 (patch) | |
tree | 0f17999d3a5444f16f09e0c1d7f3075e0224e731 /pkgs/build-support/cc-wrapper | |
parent | 3f45f0948d6fe158bed063adb66850ded0ba4861 (diff) | |
parent | c61445357e2a92470bee43a71a10baef1a3196e4 (diff) | |
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Merge remote-tracking branch 'upstream/master' into hardened-stdenv
Diffstat (limited to 'pkgs/build-support/cc-wrapper')
-rw-r--r-- | pkgs/build-support/cc-wrapper/cc-wrapper.sh | 58 | ||||
-rw-r--r-- | pkgs/build-support/cc-wrapper/gnat-wrapper.sh | 16 | ||||
-rw-r--r-- | pkgs/build-support/cc-wrapper/ld-wrapper.sh | 17 | ||||
-rw-r--r-- | pkgs/build-support/cc-wrapper/setup-hook.sh | 12 |
4 files changed, 76 insertions, 27 deletions
diff --git a/pkgs/build-support/cc-wrapper/cc-wrapper.sh b/pkgs/build-support/cc-wrapper/cc-wrapper.sh index e07eb8b41dca..1406dfd543da 100644 --- a/pkgs/build-support/cc-wrapper/cc-wrapper.sh +++ b/pkgs/build-support/cc-wrapper/cc-wrapper.sh @@ -15,29 +15,37 @@ fi source @out@/nix-support/utils.sh -# Figure out if linker flags should be passed. GCC prints annoying -# warnings when they are not needed. +# Parse command line options and set several variables. +# For instance, figure out if linker flags should be passed. +# GCC prints annoying warnings when they are not needed. dontLink=0 getVersion=0 nonFlagArgs=0 +[[ "@prog@" = *++ ]] && isCpp=1 || isCpp=0 -for i in "$@"; do - if [ "$i" = -c ]; then +params=("$@") +n=0 +while [ $n -lt ${#params[*]} ]; do + p=${params[n]} + p2=${params[$((n+1))]} + if [ "$p" = -c ]; then dontLink=1 - elif [ "$i" = -S ]; then + elif [ "$p" = -S ]; then dontLink=1 - elif [ "$i" = -E ]; then + elif [ "$p" = -E ]; then dontLink=1 - elif [ "$i" = -E ]; then + elif [ "$p" = -E ]; then dontLink=1 - elif [ "$i" = -M ]; then + elif [ "$p" = -M ]; then dontLink=1 - elif [ "$i" = -MM ]; then + elif [ "$p" = -MM ]; then dontLink=1 - elif [ "$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. + elif [[ "$p" = -x && "$p2" = *-header ]]; then dontLink=1 + elif [[ "$p" = -x && "$p2" = c++* && "$isCpp" = 0 ]]; then + isCpp=1 + elif [ "$p" = -nostdlib ]; then + isCpp=-1 elif [ "${i:0:1}" != - ]; then nonFlagArgs=1 elif [ "$i" = -m32 ]; then @@ -45,6 +53,7 @@ for i in "$@"; do NIX_LDFLAGS="$NIX_LDFLAGS -dynamic-linker $(cat @out@/nix-support/dynamic-linker-m32)" fi fi + n=$((n + 1)) done # If we pass a flag like -Wl, then gcc will call the linker unless it @@ -57,7 +66,6 @@ if [ "$nonFlagArgs" = 0 ]; then fi # Optionally filter out paths not refering to the store. -params=("$@") if [ "$NIX_ENFORCE_PURITY" = 1 -a -n "$NIX_STORE" ]; then rest=() n=0 @@ -75,18 +83,30 @@ if [ "$NIX_ENFORCE_PURITY" = 1 -a -n "$NIX_STORE" ]; then elif [ "$p" = -isystem ] && badPath "$p2"; then n=$((n + 1)); skip $p2 else - rest=("${rest[@]}" "$p") + rest+=("$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 $NIX_CXXSTDLIB_LINK" - fi + +# Clear march/mtune=native -- they bring impurity. +if [ "$NIX_ENFORCE_NO_NATIVE" = 1 ]; then + rest=() + for i in "${params[@]}"; do + if [[ "$i" = -m*=native ]]; then + skip $i + else + rest+=("$i") + fi + done + params=("${rest[@]}") +fi + +if [[ "$isCpp" = 1 ]]; then + NIX_CFLAGS_COMPILE="$NIX_CFLAGS_COMPILE ${NIX_CXXSTDLIB_COMPILE-@default_cxx_stdlib_compile@}" + NIX_CFLAGS_LINK="$NIX_CFLAGS_LINK $NIX_CXXSTDLIB_LINK" fi LD=@ldPath@/ld diff --git a/pkgs/build-support/cc-wrapper/gnat-wrapper.sh b/pkgs/build-support/cc-wrapper/gnat-wrapper.sh index ae46b40ac631..012f826a111e 100644 --- a/pkgs/build-support/cc-wrapper/gnat-wrapper.sh +++ b/pkgs/build-support/cc-wrapper/gnat-wrapper.sh @@ -62,7 +62,7 @@ if [ "$NIX_ENFORCE_PURITY" = 1 -a -n "$NIX_STORE" ]; then elif [ "${p:0:4}" = -aO/ ] && badPath "${p:3}"; then skip $p else - rest=("${rest[@]}" "$p") + rest+=("$p") fi n=$((n + 1)) done @@ -70,6 +70,20 @@ if [ "$NIX_ENFORCE_PURITY" = 1 -a -n "$NIX_STORE" ]; then fi +# Clear march/mtune=native -- they bring impurity. +if [ "$NIX_ENFORCE_NO_NATIVE" = 1 ]; then + rest=() + for i in "${params[@]}"; do + if [[ "$i" = -m*=native ]]; then + skip $i + else + rest+=("$i") + fi + done + params=("${rest[@]}") +fi + + # Add the flags for the GNAT compiler proper. extraAfter=($NIX_GNATFLAGS_COMPILE) extraBefore=() diff --git a/pkgs/build-support/cc-wrapper/ld-wrapper.sh b/pkgs/build-support/cc-wrapper/ld-wrapper.sh index 09e87975437b..999959c8227b 100644 --- a/pkgs/build-support/cc-wrapper/ld-wrapper.sh +++ b/pkgs/build-support/cc-wrapper/ld-wrapper.sh @@ -148,11 +148,26 @@ if [ "$NIX_DONT_SET_RPATH" != 1 ]; then # Finally, add `-rpath' switches. for i in $rpath; do - extra=(${extra[@]} -rpath $i) + extra+=(-rpath $i) done fi +# Only add --build-id if this is a final link. FIXME: should build gcc +# with --enable-linker-build-id instead? +if [ "$NIX_SET_BUILD_ID" = 1 ]; then + for p in "${params[@]}"; do + if [ "$p" = "-r" -o "$p" = "--relocatable" -o "$p" = "-i" ]; then + relocatable=1 + break + fi + done + if [ -z "$relocatable" ]; then + extra+=(--build-id) + fi +fi + + # Optionally print debug info. if [ -n "$NIX_DEBUG" ]; then echo "original flags to @prog@:" >&2 diff --git a/pkgs/build-support/cc-wrapper/setup-hook.sh b/pkgs/build-support/cc-wrapper/setup-hook.sh index 3d0b2fdfe8ae..35620483d2bc 100644 --- a/pkgs/build-support/cc-wrapper/setup-hook.sh +++ b/pkgs/build-support/cc-wrapper/setup-hook.sh @@ -22,20 +22,20 @@ envHooks+=(addCVars) # Note: these come *after* $out in the PATH (see setup.sh). -if [ -n "@cc@" ]; then - addToSearchPath PATH @cc@/bin +if [ -n "@binutils@" ]; then + addToSearchPath _PATH @binutils@/bin fi -if [ -n "@binutils@" ]; then - addToSearchPath PATH @binutils@/bin +if [ -n "@cc@" ]; then + addToSearchPath _PATH @cc@/bin fi if [ -n "@libc@" ]; then - addToSearchPath PATH @libc@/bin + addToSearchPath _PATH @libc@/bin fi if [ -n "@coreutils@" ]; then - addToSearchPath PATH @coreutils@/bin + addToSearchPath _PATH @coreutils@/bin fi if [ -z "$crossConfig" ]; then |