/[gentoo-x86]/eclass/flag-o-matic.eclass
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1# Copyright 1999-2007 Gentoo Foundation 1# Copyright 1999-2007 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 1.116 2007/03/04 21:03:59 vapier Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/flag-o-matic.eclass,v 1.117 2007/03/04 21:13:17 vapier Exp $
4# 4#
5# Maintainer: toolchain@gentoo.org 5# Maintainer: toolchain@gentoo.org
6 6
7# need access to emktemp() 7# need access to emktemp()
8inherit eutils toolchain-funcs multilib 8inherit eutils toolchain-funcs multilib
90# Returns true if the compiler by default or with current CFLAGS 90# Returns true if the compiler by default or with current CFLAGS
91# generates stack smash protections for most vulnerable functions 91# generates stack smash protections for most vulnerable functions
92# 92#
93 93
94# C[XX]FLAGS that we allow in strip-flags 94# C[XX]FLAGS that we allow in strip-flags
95# Note: shell globs and character lists are allowed
95setup-allowed-flags() { 96setup-allowed-flags() {
96 if [[ -z ${ALLOWED_FLAGS} ]] ; then 97 if [[ -z ${ALLOWED_FLAGS} ]] ; then
97 export ALLOWED_FLAGS="-pipe" 98 export ALLOWED_FLAGS="-pipe"
98 export ALLOWED_FLAGS="${ALLOWED_FLAGS} -O -O0 -O1 -O2 -mcpu -march -mtune" 99 export ALLOWED_FLAGS="${ALLOWED_FLAGS} -O -O0 -O1 -O2 -mcpu -march -mtune"
99 export ALLOWED_FLAGS="${ALLOWED_FLAGS} -fstack-protector -fstack-protector-all" 100 export ALLOWED_FLAGS="${ALLOWED_FLAGS} -fstack-protector -fstack-protector-all"
100 export ALLOWED_FLAGS="${ALLOWED_FLAGS} -fbounds-checking -fno-bounds-checking" 101 export ALLOWED_FLAGS="${ALLOWED_FLAGS} -fbounds-checking -fno-bounds-checking"
101 export ALLOWED_FLAGS="${ALLOWED_FLAGS} -fno-PIE -fno-pie -fno-unit-at-a-time" 102 export ALLOWED_FLAGS="${ALLOWED_FLAGS} -fno-PIE -fno-pie -fno-unit-at-a-time"
102 export ALLOWED_FLAGS="${ALLOWED_FLAGS} -g -g0 -g1 -g2 -g3 -ggdb -ggdb0 -ggdb1 -ggdb2 -ggdb3" 103 export ALLOWED_FLAGS="${ALLOWED_FLAGS} -g -g[0-9] -ggdb -ggdb[0-9] -gstabs -gstabs+"
103 export ALLOWED_FLAGS="${ALLOWED_FLAGS} -fno-ident" 104 export ALLOWED_FLAGS="${ALLOWED_FLAGS} -fno-ident"
104 fi 105 fi
105 # allow a bunch of flags that negate features / control ABI 106 # allow a bunch of flags that negate features / control ABI
106 ALLOWED_FLAGS="${ALLOWED_FLAGS} -fno-stack-protector -fno-stack-protector-all" 107 ALLOWED_FLAGS="${ALLOWED_FLAGS} -fno-stack-protector -fno-stack-protector-all"
107 ALLOWED_FLAGS="${ALLOWED_FLAGS} -mregparm -mno-app-regs -mapp-regs \ 108 ALLOWED_FLAGS="${ALLOWED_FLAGS} -mregparm -mno-app-regs -mapp-regs \

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