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ghc: Add support for grsecurity

In this case, we also need to specify compilation flags to mark stacks as
non-executable, otherwise PaX will not allow ghc or binaries built by ghc
to run.  This is what gentoo-hardened does as well.
This commit is contained in:
Ricardo M. Correia 2014-02-08 20:06:09 +01:00
parent 92cc5b8c0c
commit 2204eb9f18

View file

@ -1,6 +1,13 @@
{ stdenv, fetchurl, ghc, perl, gmp, ncurses }:
stdenv.mkDerivation rec {
let
# The "-Wa,--noexecstack" options might be needed only with GNU ld (as opposed
# to the gold linker). It prevents binaries' stacks from being marked as
# executable, which fails to run on a grsecurity/PaX kernel.
ghcFlags = "-optc-Wa,--noexecstack -opta-Wa,--noexecstack";
cFlags = "-Wa,--noexecstack";
in stdenv.mkDerivation rec {
version = "7.6.3";
name = "ghc-${version}";
@ -12,21 +19,38 @@ stdenv.mkDerivation rec {
buildInputs = [ ghc perl gmp ncurses ];
buildMK = ''
libraries/integer-gmp_CONFIGURE_OPTS += --configure-option=--with-gmp-libraries="${gmp}/lib"
libraries/integer-gmp_CONFIGURE_OPTS += --configure-option=--with-gmp-includes="${gmp}/include"
# Set ghcFlags for building ghc itself
SRC_HC_OPTS += ${ghcFlags}
SRC_CC_OPTS += ${cFlags}
'';
preConfigure = ''
echo "${buildMK}" > mk/build.mk
sed -i -e 's|-isysroot /Developer/SDKs/MacOSX10.5.sdk||' configure
# Set ghcFlags for binaries that ghc builds
sed -i -e 's|"\$topdir"|"\$topdir" ${ghcFlags}|' ghc/ghc.wrapper
'' + stdenv.lib.optionalString (!stdenv.isDarwin) ''
export NIX_LDFLAGS="$NIX_LDFLAGS -rpath $out/lib/ghc-${version}"
'';
configureFlags = "--with-gcc=${stdenv.gcc}/bin/gcc";
postInstall = ''
# ghci uses mmap with rwx protection at it implements dynamic
# linking on its own. See:
# - https://bugs.gentoo.org/show_bug.cgi?id=299709
# - https://ghc.haskell.org/trac/ghc/ticket/4244
# Therefore, we have to pax-mark the resulting binary.
# Haddock also seems to run with ghci, so mark it as well.
paxmark m $out/lib/${name}/{ghc,haddock}
'';
# required, because otherwise all symbols from HSffi.o are stripped, and
# that in turn causes GHCi to abort
stripDebugFlags=["-S" "--keep-file-symbols"];