/[gentoo-x86]/eclass/flag-o-matic.eclass
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1# Copyright 1999-2011 Gentoo Foundation 1# Copyright 1999-2011 Gentoo Foundation
2# Distributed under the terms of the GNU General Public License v2 2# Distributed under the terms of the GNU General Public License v2
3# $Header: /var/cvsroot/gentoo-x86/eclass/flag-o-matic.eclass,v 1.161 2011/12/15 05:23:15 vapier Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/flag-o-matic.eclass,v 1.162 2011/12/28 05:48:28 dirtyepic Exp $
4 4
5# @ECLASS: flag-o-matic.eclass 5# @ECLASS: flag-o-matic.eclass
6# @MAINTAINER: 6# @MAINTAINER:
7# toolchain@gentoo.org 7# toolchain@gentoo.org
8# @BLURB: common functions to manipulate and query toolchain flags 8# @BLURB: common functions to manipulate and query toolchain flags
32# {C,CXX,F,FC}FLAGS that we allow in strip-flags 32# {C,CXX,F,FC}FLAGS that we allow in strip-flags
33# Note: shell globs and character lists are allowed 33# Note: shell globs and character lists are allowed
34setup-allowed-flags() { 34setup-allowed-flags() {
35 if [[ -z ${ALLOWED_FLAGS} ]] ; then 35 if [[ -z ${ALLOWED_FLAGS} ]] ; then
36 export ALLOWED_FLAGS="-pipe" 36 export ALLOWED_FLAGS="-pipe"
37 export ALLOWED_FLAGS="${ALLOWED_FLAGS} -O -O0 -O1 -O2 -mcpu -march -mtune" 37 export ALLOWED_FLAGS="${ALLOWED_FLAGS} -O -O1 -O2 -Os -mcpu -march -mtune"
38 export ALLOWED_FLAGS="${ALLOWED_FLAGS} -fstack-protector -fstack-protector-all" 38 export ALLOWED_FLAGS="${ALLOWED_FLAGS} -fstack-protector -fstack-protector-all"
39 export ALLOWED_FLAGS="${ALLOWED_FLAGS} -fbounds-checking -fno-strict-overflow" 39 export ALLOWED_FLAGS="${ALLOWED_FLAGS} -fbounds-checking -fno-strict-overflow"
40 export ALLOWED_FLAGS="${ALLOWED_FLAGS} -fno-PIE -fno-pie -fno-unit-at-a-time" 40 export ALLOWED_FLAGS="${ALLOWED_FLAGS} -fno-PIE -fno-pie -fno-unit-at-a-time"
41 export ALLOWED_FLAGS="${ALLOWED_FLAGS} -g -g[0-9] -ggdb -ggdb[0-9] -gstabs -gstabs+" 41 export ALLOWED_FLAGS="${ALLOWED_FLAGS} -g -g[0-9] -ggdb -ggdb[0-9] -gstabs -gstabs+"
42 export ALLOWED_FLAGS="${ALLOWED_FLAGS} -fno-ident -fpermissive" 42 export ALLOWED_FLAGS="${ALLOWED_FLAGS} -fno-ident -fpermissive"
62 ALLOWED_FLAGS="${ALLOWED_FLAGS} -mno-fma4 -mno-movbe -mno-xop -mno-lwp" 62 ALLOWED_FLAGS="${ALLOWED_FLAGS} -mno-fma4 -mno-movbe -mno-xop -mno-lwp"
63 # 4.6 63 # 4.6
64 ALLOWED_FLAGS="${ALLOWED_FLAGS} -mno-fsgsbase -mno-rdrnd -mno-f16c \ 64 ALLOWED_FLAGS="${ALLOWED_FLAGS} -mno-fsgsbase -mno-rdrnd -mno-f16c \
65 -mno-bmi -mno-tbm" 65 -mno-bmi -mno-tbm"
66 66
67 # {C,CXX,F,FC}FLAGS that we are think is ok, but needs testing
68 # NOTE: currently -Os have issues with gcc3 and K6* arch's
69 export UNSTABLE_FLAGS="-Os -O3 -freorder-blocks"
70 return 0 67 return 0
71} 68}
72 69
73# inverted filters for hardened compiler. This is trying to unpick 70# inverted filters for hardened compiler. This is trying to unpick
74# the hardened compiler defaults. 71# the hardened compiler defaults.
336 local NEW_CFLAGS="" 333 local NEW_CFLAGS=""
337 local NEW_CXXFLAGS="" 334 local NEW_CXXFLAGS=""
338 local NEW_FFLAGS="" 335 local NEW_FFLAGS=""
339 local NEW_FCFLAGS="" 336 local NEW_FCFLAGS=""
340 337
341 # Allow unstable C[XX]FLAGS if we are using unstable profile ...
342 if has "~$(tc-arch)" ${ACCEPT_KEYWORDS} ; then
343 ALLOWED_FLAGS="${ALLOWED_FLAGS} ${UNSTABLE_FLAGS}"
344 fi
345
346 set -f # disable pathname expansion 338 set -f # disable pathname expansion
347 339
348 for x in ${CFLAGS}; do 340 for x in ${CFLAGS}; do
349 for y in ${ALLOWED_FLAGS}; do 341 for y in ${ALLOWED_FLAGS}; do
350 flag=${x%%=*} 342 flag=${x%%=*}

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