[patch] Needed change for >=gcc 4.4 hardened support.

toolchain.eclass.patch (text/plain), 7.65 KB, created by Magnus Granberg on 2010-05-15 12:27:14 UTC

2010-05-15		Magnus Granberg 	<[e-mail]>

	* eclass/toolchain.eclass
	SLOT+IUSE logic: 	Add USE nossp if SPECS_VER defined
	get_gcc_src_uri():	Add zorry to devspec 	Move PIE_CORE	Remove nopie
	hardened_gcc_works():	Add nopie check if >=gcc 4.3.2	Add [[ -n ${SPECS_VER} ]] to check PP_VER line
		Add nossp check if >=gcc 4.3.2
	want_pie():		Add check for (PIE_VER && SPECS_VER) and (-hardened && nopie && PIE_VER) if >=gcc 4.3.2
	want_minispecs():	Add check for (use nopie && use nossp), use vanilla, ! want_pie,
		(! hardened_gcc_works pie && ! hardened_gcc_works ssp) and print a warnings.
	gcc_pkg_setup():	Call want_minispecs so we get hardened warings before unpack
	gcc-compiler_src_unpack():	make_gcc_hard() don't fail with want_minispecs
	gcc-compiler-configure():	Set esp to disable, all, nopie or nossp depend on the support and USE-flags
	gcc_src_compile(): Make setup_minispecs_gcc_build_specs() depend on <=gcc 4.4.3
	gcc-compiler_src_install():		Add want_minispecs to hardened create_gcc_env_entry part
		want_minispecs need ${WORKDIR}"/specs/*.specs
		Move copy_minispecs_gcc_specs to hardened create_gcc_env_entry part

--- a/eclass/toolchain.eclass	2010-04-25 17:47:56.000000000 +0200
+++ b/eclass/toolchain.eclass	2010-04-29 00:29:27.000000000 +0200
@@ -143,6 +143,7 @@
 		IUSE="${IUSE} altivec build fortran nls nocxx"
 		[[ -n ${PIE_VER} ]] && IUSE="${IUSE} nopie"
 		[[ -n ${PP_VER}	 ]] && IUSE="${IUSE} nossp"
+		[[ -n ${SPECS_VER} ]] && IUSE="${IUSE} nossp"
 		[[ -n ${HTB_VER} ]] && IUSE="${IUSE} boundschecking"
 		[[ -n ${D_VER}	 ]] && IUSE="${IUSE} d"
 
@@ -278,7 +279,7 @@
 #
 gentoo_urls() {
 	local devspace="HTTP~lv/GCC/URI HTTP~eradicator/gcc/URI HTTP~vapier/dist/URI
-	HTTP~halcy0n/patches/URI"
+	HTTP~halcy0n/patches/URI HTTP~zorry/patches/gcc/URI"
 	devspace=${devspace//HTTP/http:\/\/dev.gentoo.org\/}
 	echo mirror://gentoo/$1 ${devspace//URI/$1}
 }
@@ -290,9 +291,6 @@
 	export HTB_GCC_VER=${HTB_GCC_VER:-${GCC_RELEASE_VER}}
 	export SPECS_GCC_VER=${SPECS_GCC_VER:-${GCC_RELEASE_VER}}
 
-	[[ -n ${PIE_VER} ]] && \
-		PIE_CORE=${PIE_CORE:-gcc-${PIE_GCC_VER}-piepatches-v${PIE_VER}.tar.bz2}
-
 	# Set where to download gcc itself depending on whether we're using a
 	# prerelease, snapshot, or release tarball.
 	if [[ -n ${PRERELEASE} ]] ; then
@@ -334,11 +332,12 @@
 
 	# strawberry pie, Cappuccino and a Gauloises (it's a good thing)
 	[[ -n ${PIE_VER} ]] && \
-		GCC_SRC_URI="${GCC_SRC_URI} !nopie? ( $(gentoo_urls ${PIE_CORE}) )"
-
+		PIE_CORE=${PIE_CORE:-gcc-${PIE_GCC_VER}-piepatches-v${PIE_VER}.tar.bz2} && \
+		GCC_SRC_URI="${GCC_SRC_URI} $(gentoo_urls ${PIE_CORE})"
+		
 	# gcc minispec for the hardened gcc 4 compiler
 	[[ -n ${SPECS_VER} ]] && \
-		GCC_SRC_URI="${GCC_SRC_URI} !nopie? ( $(gentoo_urls gcc-${SPECS_GCC_VER}-specs-${SPECS_VER}.tar.bz2) )"
+		GCC_SRC_URI="${GCC_SRC_URI} $(gentoo_urls gcc-${SPECS_GCC_VER}-specs-${SPECS_VER}.tar.bz2)"
 
 	# gcc bounds checking patch
 	if [[ -n ${HTB_VER} ]] ; then
@@ -392,6 +393,7 @@
 		[[ ${CTARGET} == *-freebsd* ]] && return 1
 
 		want_pie || return 1
+		tc_version_is_at_least 4.3.2 && use nopie && return 1
 		hardened_gcc_is_stable pie && return 0
 		if has "~$(tc-arch)" ${ACCEPT_KEYWORDS} ; then
 			hardened_gcc_check_unsupported pie && return 1
@@ -400,7 +400,8 @@
 		fi
 		return 1
 	elif [[ $1 == "ssp" ]] ; then
-		[[ -z ${PP_VER} ]] && return 1
+		[[ -n ${PP_VER} ]] || [[ -n ${SPECS_VER} ]] || return 1
+		tc_version_is_at_least 4.3.2 && use nossp && return 1
 		hardened_gcc_is_stable ssp && return 0
 		if has "~$(tc-arch)" ${ACCEPT_KEYWORDS} ; then
 			hardened_gcc_check_unsupported ssp && return 1
@@ -490,7 +490,12 @@
 	return 1
 }
 want_boundschecking() { _want_stuff HTB_VER boundschecking ; }
-want_pie() { _want_stuff PIE_VER !nopie ; }
+want_pie() {
+		! use hardened && [[ -n ${PIE_VER} ]] && use nopie && return 1
+		[[ -n ${PIE_VER} ]] && [[ -n ${SPECS_VER} ]] && return 0
+		tc_version_is_at_least 4.3.2 && return 1
+		_want_stuff PIE_VER !nopie
+}
 want_ssp() { _want_stuff PP_VER !nossp ; }
 
 want_split_specs() {
@@ -498,11 +503,19 @@
 }
 want_minispecs() {
 	if tc_version_is_at_least 4.3.2 && use hardened ; then
-		if [[ -n ${SPECS_VER} ]] ; then
-			return 0
+		if ! want_pie ; then
+			ewarn "PIE_VER or SPECS_VER is not defiend in the GCC ebuild."
+		elif use vanilla ; then
+			ewarn "You will not get hardened features if you have the vanilla USE-flag."
+		elif use nopie && use nossp ; then
+			ewarn "You will not get hardened features if you have the nopie and nossp USE-flag."
+		elif ! hardened_gcc_works pie && ! hardened_gcc_works ssp && ! use nopie ; then
+			ewarn "Your $(tc-arch) arch is not supported."
 		else
-			die "For Hardened to work you need the minispecs files"
+			return 0
 		fi
+		ewarn "Hope you know what you are doing. Hardened will not work."
+		return 0
 	fi
 	return 1
 }
@@ -1010,7 +1030,7 @@
 	# the necessary support
 	want_pie && use hardened && glibc_have_pie
 
-	if use hardened && ! want_minispecs ; then
+	if use hardened ; then
 		einfo "updating configuration to build hardened GCC"
 		make_gcc_hard || die "failed to make gcc hard"
 	fi
@@ -1201,6 +1233,19 @@
 			confgcc="${confgcc} --disable-libssp"
 		fi
 
+		# If we want hardened support with the newer pie-patchset for >=gcc 4.4.3
+		if tc_version_is_at_least 4.4.3 && want_minispecs && ! use vanilla ; then
+			if hardened_gcc_works ; then 
+				confgcc="${confgcc} --enable-esp=all"
+			elif ! hardened_gcc_works pie && hardened_gcc_works ssp ; then
+				confgcc="${confgcc} --enable-esp=nopie"
+			elif ! hardened_gcc_works ssp && hardened_gcc_works pie ; then
+				confgcc="${confgcc} --enable-esp=nossp"
+			else
+				confgcc="${confgcc} --disable-esp"
+			fi
+		fi
+
 		if tc_version_is_at_least "4.2" ; then
 			confgcc="${confgcc} $(use_enable openmp libgomp)"
 		fi
@@ -1682,8 +1715,8 @@
 	einfo "CFLAGS=\"${CFLAGS}\""
 	einfo "CXXFLAGS=\"${CXXFLAGS}\""
 
-	# For hardened gcc 4 for build the hardened specs file to use when building gcc
-	setup_minispecs_gcc_build_specs
+	# For hardened gcc 4.3 piepatches to build the hardened specs file to use when building gcc
+	! tc_version_is_at_least 4.4.3 && setup_minispecs_gcc_build_specs
 
 	# Build in a separate build tree
 	mkdir -p "${WORKDIR}"/build
@@ -1791,11 +1826,13 @@
 	dodir /etc/env.d/gcc
 	create_gcc_env_entry
 
-	if want_split_specs ; then
+	if want_split_specs || want_minispecs ; then
 		if use hardened ; then
 			create_gcc_env_entry vanilla
 		fi
-		! use hardened && hardened_gcc_works && create_gcc_env_entry hardened
+		if ! use hardened && hardened_gcc_works && want_split_specs ; then
+			create_gcc_env_entry hardened
+		fi
 		if hardened_gcc_works || hardened_gcc_works pie ; then
 			create_gcc_env_entry hardenednossp
 		fi
@@ -1805,14 +1840,14 @@
 		create_gcc_env_entry hardenednopiessp
 
 		insinto ${LIBPATH}
-		doins "${WORKDIR}"/build/*.specs || die "failed to install specs"
-	fi
-	# Setup the gcc_env_entry for hardened gcc 4 with minispecs
-	if want_minispecs ; then
-		if hardened_gcc_works pie ; then
-		    create_gcc_env_entry hardenednopie
+		if want_split_specs ; then
+			doins "${WORKDIR}"/build/*.specs || die "failed to install specs"
 		fi
-		create_gcc_env_entry vanilla
+		if want_minispecs ; then
+			doins "${WORKDIR}"/specs/*.specs || die "failed to install specs"
+		fi
+		# For gcc 4.3 piepatches
+		! tc_version_is_at_least 4.4.3 && copy_minispecs_gcc_specs
 	fi
 	# Make sure we dont have stuff lying around that
 	# can nuke multiple versions of gcc
@@ -1918,9 +1950,6 @@
 	# Create config files for eselect-compiler
 	create_eselect_conf
 
-	# Cpoy the needed minispec for hardened gcc 4
-	copy_minispecs_gcc_specs
-
 	# Move pretty-printers to gdb datadir to shut ldconfig up
 	gdbdir=/usr/share/gdb/auto-load
 	for module in $(find "${D}" -iname "*-gdb.py" -print); do