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stdenv: Fix regression on ARM+static when enabling hardening (#115363)

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4e9dc46dea re-enabled hardening for Musl,
which is good.

Though static builds for ARM fail in various ways

 - cross armv7l static does not build
 - cross aarch64 static produces segfaulting dynamically linked binaries
 - native aarch64 static also produces segfaulting dynamically linked binaries

It seems that for native x86_64-linux, static builds are fine though.

This works around the issue by removing PIE from the hardening flags,
keeping all other hardening flags. This is an improvement (I think) from
before 4e9dc46d.

Fixes #114953
This commit is contained in:
Samuel Dionne-Riel 2021-03-23 18:45:48 -04:00 committed by GitHub
parent 924b214e05
commit 76552e95cc
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1 changed files with 6 additions and 1 deletions
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7
pkgs/stdenv/generic/make-derivation.nix
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@ -106,7 +106,12 @@ in rec {
++ depsTargetTarget ++ depsTargetTargetPropagated) == 0;
dontAddHostSuffix = attrs ? outputHash && !noNonNativeDeps || (stdenv.noCC or false);
supportedHardeningFlags = [ "fortify" "stackprotector" "pie" "pic" "strictoverflow" "format" "relro" "bindnow" ];
defaultHardeningFlags = if stdenv.hostPlatform.isMusl
# Musl-based platforms will keep "pie", other platforms will not.
defaultHardeningFlags = if stdenv.hostPlatform.isMusl &&
# Except when:
# - static aarch64, where compilation works, but produces segfaulting dynamically linked binaries.
# - static armv7l, where compilation fails.
!((stdenv.hostPlatform.isAarch64 || stdenv.hostPlatform.isAarch32) && stdenv.hostPlatform.isStatic)
then supportedHardeningFlags
else lib.remove "pie" supportedHardeningFlags;
enabledHardeningOptions =