/[gentoo-x86]/eclass/flag-o-matic.eclass
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1# Copyright 1999-2009 Gentoo Foundation 1# Copyright 1999-2009 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 1.132 2009/01/21 00:42:20 gengor Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/flag-o-matic.eclass,v 1.148 2010/05/08 03:47:41 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
39 export ALLOWED_FLAGS="${ALLOWED_FLAGS} -fno-ident" 39 export ALLOWED_FLAGS="${ALLOWED_FLAGS} -fno-ident"
40 export ALLOWED_FLAGS="${ALLOWED_FLAGS} -W* -w" 40 export ALLOWED_FLAGS="${ALLOWED_FLAGS} -W* -w"
41 fi 41 fi
42 # allow a bunch of flags that negate features / control ABI 42 # allow a bunch of flags that negate features / control ABI
43 ALLOWED_FLAGS="${ALLOWED_FLAGS} -fno-stack-protector -fno-stack-protector-all \ 43 ALLOWED_FLAGS="${ALLOWED_FLAGS} -fno-stack-protector -fno-stack-protector-all \
44 -fno-strict-aliasing -fno-bounds-checking -fstrict-overflow" 44 -fno-strict-aliasing -fno-bounds-checking -fstrict-overflow -fno-omit-frame-pointer"
45 ALLOWED_FLAGS="${ALLOWED_FLAGS} -mregparm -mno-app-regs -mapp-regs \ 45 ALLOWED_FLAGS="${ALLOWED_FLAGS} -mregparm -mno-app-regs -mapp-regs \
46 -mno-mmx -mno-sse -mno-sse2 -mno-sse3 -mno-3dnow \ 46 -mno-mmx -mno-sse -mno-sse2 -mno-sse3 -mno-ssse3 -mno-sse4 -mno-sse4.1 \
47 -mno-sse4.2 -mno-avx -mno-aes -mno-pclmul -mno-sse4a -mno-3dnow \
48 -mno-popcnt -mno-abm \
47 -mips1 -mips2 -mips3 -mips4 -mips32 -mips64 -mips16 \ 49 -mips1 -mips2 -mips3 -mips4 -mips32 -mips64 -mips16 -mplt \
48 -msoft-float -mno-soft-float -mhard-float -mno-hard-float -mfpu \ 50 -msoft-float -mno-soft-float -mhard-float -mno-hard-float -mfpu \
49 -mieee -mieee-with-inexact -mschedule \ 51 -mieee -mieee-with-inexact -mschedule \
50 -mtls-direct-seg-refs -mno-tls-direct-seg-refs \ 52 -mtls-direct-seg-refs -mno-tls-direct-seg-refs \
51 -mflat -mno-flat -mno-faster-structs -mfaster-structs \ 53 -mflat -mno-flat -mno-faster-structs -mfaster-structs \
52 -m32 -m64 -mabi -mlittle-endian -mbig-endian -EL -EB -fPIC \ 54 -m32 -m64 -mabi -mlittle-endian -mbig-endian -EL -EB -fPIC \
53 -mlive-g0 -mcmodel -mstack-bias -mno-stack-bias \ 55 -mlive-g0 -mcmodel -mstack-bias -mno-stack-bias \
54 -msecure-plt -m*-toc -D* -U*" 56 -msecure-plt -m*-toc -D* -U*"
57
58 # 4.5
59 ALLOWED_FLAGS="${ALLOWED_FLAGS} -mno-fma4 -mno-movbe -mno-xop -mno-lwp"
55 60
56 # {C,CXX,F,FC}FLAGS that we are think is ok, but needs testing 61 # {C,CXX,F,FC}FLAGS that we are think is ok, but needs testing
57 # NOTE: currently -Os have issues with gcc3 and K6* arch's 62 # NOTE: currently -Os have issues with gcc3 and K6* arch's
58 export UNSTABLE_FLAGS="-Os -O3 -freorder-blocks" 63 export UNSTABLE_FLAGS="-Os -O3 -freorder-blocks"
59 return 0 64 return 0
134 [[ -z $* ]] && return 0 139 [[ -z $* ]] && return 0
135 export CPPFLAGS="${CPPFLAGS} $*" 140 export CPPFLAGS="${CPPFLAGS} $*"
136 return 0 141 return 0
137} 142}
138 143
144# @FUNCTION: append-cflags
145# @USAGE: <flags>
146# @DESCRIPTION:
147# Add extra <flags> to the current CFLAGS.
148append-cflags() {
149 [[ -z $* ]] && return 0
150 export CFLAGS="${CFLAGS} $*"
151 return 0
152}
153
139# @FUNCTION: append-cxxflags 154# @FUNCTION: append-cxxflags
140# @USAGE: <flags> 155# @USAGE: <flags>
141# @DESCRIPTION: 156# @DESCRIPTION:
142# Add extra <flags> to the current CXXFLAGS. 157# Add extra <flags> to the current CXXFLAGS.
143append-cxxflags() { 158append-cxxflags() {
169# @USAGE: <flags> 184# @USAGE: <flags>
170# @DESCRIPTION: 185# @DESCRIPTION:
171# Add extra <flags> to your current {C,CXX,F,FC}FLAGS. 186# Add extra <flags> to your current {C,CXX,F,FC}FLAGS.
172append-flags() { 187append-flags() {
173 [[ -z $* ]] && return 0 188 [[ -z $* ]] && return 0
174 export CFLAGS="${CFLAGS} $*" 189 append-cflags "$@"
175 export CXXFLAGS="${CXXFLAGS} $*" 190 append-cxxflags "$@"
176 export FFLAGS="${FFLAGS} $*" 191 append-fflags "$@"
177 export FCFLAGS="${FCFLAGS} $*"
178 return 0 192 return 0
179} 193}
180 194
181# @FUNCTION: replace-flags 195# @FUNCTION: replace-flags
182# @USAGE: <old> <new> 196# @USAGE: <old> <new>
312 local NEW_CXXFLAGS="" 326 local NEW_CXXFLAGS=""
313 local NEW_FFLAGS="" 327 local NEW_FFLAGS=""
314 local NEW_FCFLAGS="" 328 local NEW_FCFLAGS=""
315 329
316 # Allow unstable C[XX]FLAGS if we are using unstable profile ... 330 # Allow unstable C[XX]FLAGS if we are using unstable profile ...
317 if has ~$(tc-arch) ${ACCEPT_KEYWORDS} ; then 331 if has "~$(tc-arch)" ${ACCEPT_KEYWORDS} ; then
318 ALLOWED_FLAGS="${ALLOWED_FLAGS} ${UNSTABLE_FLAGS}" 332 ALLOWED_FLAGS="${ALLOWED_FLAGS} ${UNSTABLE_FLAGS}"
319 fi 333 fi
320 334
321 set -f # disable pathname expansion 335 set -f # disable pathname expansion
322 336
655 fi 669 fi
656 670
657 export CFLAGS CXXFLAGS 671 export CFLAGS CXXFLAGS
658} 672}
659 673
674# @FUNCTION: append-libs
675# @USAGE: <libs>
676# @DESCRIPTION:
677# Add extra <libs> to the current LIBS.
678append-libs() {
679 [[ -z $* ]] && return 0
680 local flag
681 for flag in "$@"; do
682 [[ ${flag} == -l* ]] && flag=${flag#-l}
683 export LIBS="${LIBS} -l${flag}"
684 done
685
686 return 0
687}
688
660# @FUNCTION: append-ldflags 689# @FUNCTION: append-ldflags
661# @USAGE: <flags> 690# @USAGE: <flags>
662# @DESCRIPTION: 691# @DESCRIPTION:
663# Add extra <flags> to the current LDFLAGS. 692# Add extra <flags> to the current LDFLAGS.
664append-ldflags() { 693append-ldflags() {
697 set -- "$@" ${x//,/ } 726 set -- "$@" ${x//,/ }
698 done 727 done
699 echo "$@" 728 echo "$@"
700} 729}
701 730
702# @FUNCTION: bindnow-flags 731# @FUNCTION: no-as-needed
703# @RETURN: Returns the flags to enable "now" binding in the current selected linker. 732# @RETURN: Flag to disable asneeded behavior for use with append-ldflags.
704# @DESCRIPTION: 733no-as-needed() {
705# DEPRECATED - Gets the flags needed for "NOW" binding 734 case $($(tc-getLD) -v 2>&1 </dev/null) in
706bindnow-flags() { 735 *GNU*) # GNU ld
707 ewarn "QA: stop using the bindnow-flags function ... simply drop it from your ebuild" 736 echo "-Wl,--no-as-needed" ;;
737 esac
708} 738}
709
710 739
711# Some tests for when we screw with things and want to make 740# Some tests for when we screw with things and want to make
712# sure we didn't break anything 741# sure we didn't break anything
713#TESTS() { 742#TESTS() {
714# CFLAGS="-a -b -c=1" 743# CFLAGS="-a -b -c=1"

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