| 1 | # Copyright 1999-2004 Gentoo Foundation |
1 | # Copyright 1999-2005 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 1.62 2004/07/15 04:59:44 lv Exp $ |
3 | # $Header: /var/cvsroot/gentoo-x86/eclass/flag-o-matic.eclass,v 1.94 2005/10/09 22:28:35 flameeyes Exp $ |
| 4 | # |
|
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| 5 | # Author Bart Verwilst <verwilst@gentoo.org> |
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| 6 | |
4 | |
| 7 | ECLASS=flag-o-matic |
5 | |
| 8 | INHERITED="$INHERITED $ECLASS" |
6 | # need access to emktemp() |
| 9 | IUSE="$IUSE debug" |
7 | inherit eutils toolchain-funcs multilib |
| 10 | |
8 | |
| 11 | # |
9 | # |
| 12 | #### filter-flags <flags> #### |
10 | #### filter-flags <flags> #### |
| 13 | # Remove particular flags from C[XX]FLAGS |
11 | # Remove particular flags from C[XX]FLAGS |
| 14 | # Matches only complete flags |
12 | # Matches only complete flags |
| … | |
… | |
| 17 | # Add extra flags to your current C[XX]FLAGS |
15 | # Add extra flags to your current C[XX]FLAGS |
| 18 | # |
16 | # |
| 19 | #### replace-flags <orig.flag> <new.flag> ### |
17 | #### replace-flags <orig.flag> <new.flag> ### |
| 20 | # Replace a flag by another one |
18 | # Replace a flag by another one |
| 21 | # |
19 | # |
| 22 | #### replace-cpu-flags <new.cpu> <old.cpus> ### |
20 | #### replace-cpu-flags <old.cpus> <new.cpu> ### |
| 23 | # Replace march/mcpu flags that specify <old.cpus> |
21 | # Replace march/mcpu flags that specify <old.cpus> |
| 24 | # with flags that specify <new.cpu> |
22 | # with flags that specify <new.cpu> |
| 25 | # |
23 | # |
| 26 | #### is-flag <flag> #### |
24 | #### is-flag <flag> #### |
| 27 | # Returns "true" if flag is set in C[XX]FLAGS |
25 | # Returns "true" if flag is set in C[XX]FLAGS |
| … | |
… | |
| 51 | # Add extra flags to your current LDFLAGS |
49 | # Add extra flags to your current LDFLAGS |
| 52 | # |
50 | # |
| 53 | #### filter-ldflags <flags> #### |
51 | #### filter-ldflags <flags> #### |
| 54 | # Remove particular flags from LDFLAGS |
52 | # Remove particular flags from LDFLAGS |
| 55 | # Matches only complete flags |
53 | # Matches only complete flags |
| 56 | # |
|
|
| 57 | #### etexec-flags #### |
|
|
| 58 | # hooked function for hardened gcc that appends |
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|
| 59 | # -fno-pic to {C,CXX,LD}FLAGS |
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| 60 | # when a package is filtering -fpic, -fPIC, -fpie, -fPIE |
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| 61 | # |
54 | # |
| 62 | #### fstack-flags #### |
55 | #### fstack-flags #### |
| 63 | # hooked function for hardened gcc that appends |
56 | # hooked function for hardened gcc that appends |
| 64 | # -fno-stack-protector to {C,CXX,LD}FLAGS |
57 | # -fno-stack-protector to {C,CXX,LD}FLAGS |
| 65 | # when a package is filtering -fstack-protector, -fstack-protector-all |
58 | # when a package is filtering -fstack-protector, -fstack-protector-all |
| 66 | # notice: modern automatic specs files will also suppress -fstack-protector-all |
59 | # notice: modern automatic specs files will also suppress -fstack-protector-all |
| 67 | # when only -fno-stack-protector is given |
60 | # when only -fno-stack-protector is given |
| 68 | # |
61 | # |
|
|
62 | #### bindnow-flags #### |
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|
63 | # Returns the flags to enable "now" binding in the current selected linker. |
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64 | # |
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|
65 | ################ DEPRECATED functions ################ |
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66 | # The following are still present to avoid breaking existing |
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67 | # code more than necessary; however they are deprecated. Please |
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68 | # use gcc-specs-* from toolchain-funcs.eclass instead, if you |
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69 | # need to know which hardened techs are active in the compiler. |
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70 | # See bug #100974 |
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71 | # |
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72 | #### has_hardened #### |
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73 | # Returns true if the compiler has 'Hardened' in its version string, |
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74 | # (note; switched-spec vanilla compilers satisfy this condition) or |
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75 | # the specs file name contains 'hardened'. |
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76 | # |
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77 | #### has_pie #### |
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78 | # Returns true if the compiler by default or with current CFLAGS |
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79 | # builds position-independent code. |
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80 | # |
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81 | #### has_pic #### |
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82 | # Returns true if the compiler by default or with current CFLAGS |
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83 | # builds position-independent code. |
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84 | # |
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85 | #### has_ssp_all #### |
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86 | # Returns true if the compiler by default or with current CFLAGS |
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87 | # generates stack smash protections for all functions |
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88 | # |
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89 | #### has_ssp #### |
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90 | # Returns true if the compiler by default or with current CFLAGS |
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91 | # generates stack smash protections for most vulnerable functions |
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92 | # |
| 69 | |
93 | |
| 70 | # C[XX]FLAGS that we allow in strip-flags |
94 | # C[XX]FLAGS that we allow in strip-flags |
| 71 | setup-allowed-flags() { |
95 | setup-allowed-flags() { |
| 72 | if [ -z "${ALLOWED_FLAGS}" ] ; then |
96 | if [[ -z ${ALLOWED_FLAGS} ]] ; then |
| 73 | export ALLOWED_FLAGS="-O -O1 -O2 -mcpu -march -mtune -fstack-protector -fno-unit-at-a-time -pipe -g" |
97 | export ALLOWED_FLAGS="-pipe" |
| 74 | case "${ARCH}" in |
98 | export ALLOWED_FLAGS="${ALLOWED_FLAGS} -O -O0 -O1 -O2 -mcpu -march -mtune" |
| 75 | mips) ALLOWED_FLAGS="${ALLOWED_FLAGS} -mips1 -mips2 -mips3 -mips4 -mabi" ;; |
99 | export ALLOWED_FLAGS="${ALLOWED_FLAGS} -fstack-protector -fstack-protector-all" |
| 76 | amd64) ALLOWED_FLAGS="${ALLOWED_FLAGS} -fPIC -m64" ;; |
100 | export ALLOWED_FLAGS="${ALLOWED_FLAGS} -fbounds-checking -fno-bounds-checking" |
| 77 | x86) ALLOWED_FLAGS="${ALLOWED_FLAGS} -m32" ;; |
101 | export ALLOWED_FLAGS="${ALLOWED_FLAGS} -fno-pie -fno-unit-at-a-time" |
| 78 | alpha) ALLOWED_FLAGS="${ALLOWED_FLAGS} -fPIC" ;; |
102 | export ALLOWED_FLAGS="${ALLOWED_FLAGS} -g -g0 -g1 -g2 -g3 -ggdb -ggdb0 -ggdb1 -ggdb2 -ggdb3" |
| 79 | ia64) ALLOWED_FLAGS="${ALLOWED_FLAGS} -fPIC" ;; |
|
|
| 80 | esac |
|
|
| 81 | fi |
103 | fi |
|
|
104 | # allow a bunch of flags that negate features / control ABI |
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105 | ALLOWED_FLAGS="${ALLOWED_FLAGS} -fno-stack-protector -fno-stack-protector-all" |
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106 | ALLOWED_FLAGS="${ALLOWED_FLAGS} -mregparm -mno-app-regs -mapp-regs \ |
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107 | -mno-mmx -mno-sse -mno-sse2 -mno-sse3 -mno-3dnow \ |
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108 | -mips1 -mips2 -mips3 -mips4 -mips32 -mips64 -mips16 \ |
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109 | -msoft-float -mno-soft-float -mhard-float -mno-hard-float -mfpu \ |
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110 | -mieee -mieee-with-inexact \ |
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111 | -mtls-direct-seg-refs -mno-tls-direct-seg-refs \ |
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112 | -mflat -mno-flat -mno-faster-structs -mfaster-structs \ |
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113 | -m32 -m64 -mabi -mlittle-endian -mbig-endian -EL -EB -fPIC \ |
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114 | -mlive-g0 -mcmodel -mstack-bias -mno-stack-bias" |
| 82 | |
115 | |
| 83 | # C[XX]FLAGS that we are think is ok, but needs testing |
116 | # C[XX]FLAGS that we are think is ok, but needs testing |
| 84 | # NOTE: currently -Os have issues with gcc3 and K6* arch's |
117 | # NOTE: currently -Os have issues with gcc3 and K6* arch's |
| 85 | export UNSTABLE_FLAGS="-Os -O3 -freorder-blocks -fprefetch-loop-arrays" |
118 | export UNSTABLE_FLAGS="-Os -O3 -freorder-blocks -fprefetch-loop-arrays" |
| 86 | return 0 |
119 | return 0 |
| 87 | } |
120 | } |
| 88 | |
121 | |
| 89 | filter-flags() { |
122 | filter-flags() { |
| 90 | local x f fset |
123 | local x f fset |
| 91 | declare -a new_CFLAGS new_CXXFLAGS |
124 | declare -a new_CFLAGS new_CXXFLAGS |
| 92 | |
125 | |
| 93 | for x in "$@" ; do |
126 | for x in "$@" ; do |
| 94 | case "${x}" in |
127 | case "${x}" in |
| 95 | -fPIC|-fpic|-fPIE|-fpie|-pie) etexec-flags;; |
128 | -fPIC|-fpic|-fPIE|-fpie|-pie) |
|
|
129 | append-flags `test_flag -fno-pie`;; |
| 96 | -fstack-protector|-fstack-protector-all) fstack-flags;; |
130 | -fstack-protector|-fstack-protector-all) |
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|
131 | fstack-flags;; |
| 97 | esac |
132 | esac |
| 98 | done |
133 | done |
| 99 | |
134 | |
| 100 | for fset in CFLAGS CXXFLAGS; do |
135 | for fset in CFLAGS CXXFLAGS; do |
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136 | # Looping over the flags instead of using a global |
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137 | # substitution ensures that we're working with flag atoms. |
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138 | # Otherwise globs like -O* have the potential to wipe out the |
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139 | # list of flags. |
| 101 | for f in ${!fset}; do |
140 | for f in ${!fset}; do |
| 102 | for x in "$@"; do |
141 | for x in "$@"; do |
| 103 | # Note this should work with globs like -O* |
142 | # Note this should work with globs like -O* |
| 104 | [[ ${f} == ${x} ]] && continue 2 |
143 | [[ ${f} == ${x} ]] && continue 2 |
| 105 | done |
144 | done |
| … | |
… | |
| 110 | |
149 | |
| 111 | return 0 |
150 | return 0 |
| 112 | } |
151 | } |
| 113 | |
152 | |
| 114 | filter-lfs-flags() { |
153 | filter-lfs-flags() { |
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154 | [[ -n $@ ]] && die "filter-lfs-flags takes no arguments" |
| 115 | filter-flags -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE |
155 | filter-flags -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE |
| 116 | } |
156 | } |
| 117 | |
157 | |
| 118 | append-lfs-flags() { |
158 | append-lfs-flags() { |
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159 | [[ -n $@ ]] && die "append-lfs-flags takes no arguments" |
| 119 | append-flags -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE |
160 | append-flags -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE |
| 120 | } |
161 | } |
| 121 | |
162 | |
| 122 | append-flags() { |
163 | append-flags() { |
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164 | [[ -z $* ]] && return 0 |
| 123 | export CFLAGS="${CFLAGS} $*" |
165 | export CFLAGS="${CFLAGS} $*" |
| 124 | export CXXFLAGS="${CXXFLAGS} $*" |
166 | export CXXFLAGS="${CXXFLAGS} $*" |
| 125 | [ -n "`is-flag -fno-stack-protector`" -o \ |
167 | [ -n "`is-flag -fno-stack-protector`" -o \ |
| 126 | -n "`is-flag -fno-stack-protector-all`" ] && fstack-flags |
168 | -n "`is-flag -fno-stack-protector-all`" ] && fstack-flags |
| 127 | return 0 |
169 | return 0 |
| 128 | } |
170 | } |
| 129 | |
171 | |
| 130 | replace-flags() { |
172 | replace-flags() { |
| 131 | # we do this fancy spacing stuff so as to not filter |
173 | [[ $# != 2 ]] \ |
| 132 | # out part of a flag ... we want flag atoms ! :D |
174 | && echo && eerror "Usage: replace-flags <old flag> <new flag>" \ |
| 133 | CFLAGS=" ${CFLAGS} " |
175 | && die "replace-flags takes 2 arguments, not $#" |
| 134 | CXXFLAGS=" ${CXXFLAGS} " |
176 | |
| 135 | CFLAGS="${CFLAGS// ${1} / ${2} }" |
177 | local f fset |
| 136 | CXXFLAGS="${CXXFLAGS// ${1} / ${2} }" |
178 | declare -a new_CFLAGS new_CXXFLAGS |
| 137 | CFLAGS="${CFLAGS:1:${#CFLAGS}-2}" |
179 | |
| 138 | CXXFLAGS="${CXXFLAGS:1:${#CXXFLAGS}-2}" |
180 | for fset in CFLAGS CXXFLAGS; do |
| 139 | export CFLAGS CXXFLAGS |
181 | # Looping over the flags instead of using a global |
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182 | # substitution ensures that we're working with flag atoms. |
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183 | # Otherwise globs like -O* have the potential to wipe out the |
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184 | # list of flags. |
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185 | for f in ${!fset}; do |
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186 | # Note this should work with globs like -O* |
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187 | [[ ${f} == ${1} ]] && f=${2} |
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188 | eval new_${fset}\[\${\#new_${fset}\[@]}]=\${f} |
|
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189 | done |
|
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190 | eval export ${fset}=\${new_${fset}\[*]} |
|
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191 | done |
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192 | |
| 140 | return 0 |
193 | return 0 |
| 141 | } |
194 | } |
| 142 | |
195 | |
| 143 | replace-cpu-flags() { |
196 | replace-cpu-flags() { |
| 144 | local oldcpu newcpu="$1" ; shift |
197 | local newcpu="$#" ; newcpu="${!newcpu}" |
| 145 | for oldcpu in "$@" ; do |
198 | while [ $# -gt 1 ] ; do |
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199 | # quote to make sure that no globbing is done (particularly on |
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200 | # ${oldcpu} prior to calling replace-flags |
| 146 | replace-flags -march=${oldcpu} -march=${newcpu} |
201 | replace-flags "-march=${1}" "-march=${newcpu}" |
| 147 | replace-flags -mcpu=${oldcpu} -mcpu=${newcpu} |
202 | replace-flags "-mcpu=${1}" "-mcpu=${newcpu}" |
| 148 | replace-flags -mtune=${oldcpu} -mtune=${newcpu} |
203 | replace-flags "-mtune=${1}" "-mtune=${newcpu}" |
|
|
204 | shift |
| 149 | done |
205 | done |
| 150 | return 0 |
206 | return 0 |
| 151 | } |
207 | } |
| 152 | |
208 | |
| 153 | is-flag() { |
209 | is-flag() { |
| 154 | local x |
210 | local x |
| 155 | |
211 | |
| 156 | for x in ${CFLAGS} ${CXXFLAGS} ; do |
212 | for x in ${CFLAGS} ${CXXFLAGS} ; do |
|
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213 | # Note this should work with globs like -mcpu=ultrasparc* |
| 157 | if [ "${x}" == "$1" ] ; then |
214 | if [[ ${x} == ${1} ]]; then |
| 158 | echo true |
215 | echo true |
| 159 | return 0 |
216 | return 0 |
| 160 | fi |
217 | fi |
| 161 | done |
218 | done |
| 162 | return 1 |
219 | return 1 |
| … | |
… | |
| 195 | |
252 | |
| 196 | local NEW_CFLAGS="" |
253 | local NEW_CFLAGS="" |
| 197 | local NEW_CXXFLAGS="" |
254 | local NEW_CXXFLAGS="" |
| 198 | |
255 | |
| 199 | # Allow unstable C[XX]FLAGS if we are using unstable profile ... |
256 | # Allow unstable C[XX]FLAGS if we are using unstable profile ... |
| 200 | if has ~${ARCH} ${ACCEPT_KEYWORDS} ; then |
257 | if has ~$(tc-arch) ${ACCEPT_KEYWORDS} ; then |
| 201 | use debug && einfo "Enabling the use of some unstable flags" |
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|
| 202 | ALLOWED_FLAGS="${ALLOWED_FLAGS} ${UNSTABLE_FLAGS}" |
258 | ALLOWED_FLAGS="${ALLOWED_FLAGS} ${UNSTABLE_FLAGS}" |
| 203 | fi |
259 | fi |
| 204 | |
260 | |
| 205 | set -f # disable pathname expansion |
261 | set -f # disable pathname expansion |
| 206 | |
262 | |
| 207 | for x in ${CFLAGS}; do |
263 | for x in ${CFLAGS}; do |
| 208 | for y in ${ALLOWED_FLAGS}; do |
264 | for y in ${ALLOWED_FLAGS}; do |
| 209 | flag=${x%%=*} |
265 | flag=${x%%=*} |
| 210 | if [ "${flag%%${y}}" = "" ]; then |
266 | if [ "${flag%%${y}}" = "" ] ; then |
| 211 | NEW_CFLAGS="${NEW_CFLAGS} ${x}" |
267 | NEW_CFLAGS="${NEW_CFLAGS} ${x}" |
| 212 | break |
268 | break |
| 213 | fi |
269 | fi |
| 214 | done |
270 | done |
| 215 | done |
271 | done |
| 216 | |
272 | |
| 217 | for x in ${CXXFLAGS}; do |
273 | for x in ${CXXFLAGS}; do |
| 218 | for y in ${ALLOWED_FLAGS}; do |
274 | for y in ${ALLOWED_FLAGS}; do |
| 219 | flag=${x%%=*} |
275 | flag=${x%%=*} |
| 220 | if [ "${flag%%${y}}" = "" ]; then |
276 | if [ "${flag%%${y}}" = "" ] ; then |
| 221 | NEW_CXXFLAGS="${NEW_CXXFLAGS} ${x}" |
277 | NEW_CXXFLAGS="${NEW_CXXFLAGS} ${x}" |
| 222 | break |
278 | break |
| 223 | fi |
279 | fi |
| 224 | done |
280 | done |
| 225 | done |
281 | done |
| … | |
… | |
| 238 | export CXXFLAGS="${NEW_CXXFLAGS}" |
294 | export CXXFLAGS="${NEW_CXXFLAGS}" |
| 239 | return 0 |
295 | return 0 |
| 240 | } |
296 | } |
| 241 | |
297 | |
| 242 | test_flag() { |
298 | test_flag() { |
| 243 | local cc=${CC:-gcc} ; cc=${cc%% *} |
299 | if $(tc-getCC) -S -xc "$@" -o "$(emktemp)" /dev/null &>/dev/null; then |
| 244 | if ${cc} -S -xc "$@" -o /dev/null /dev/null &>/dev/null; then |
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|
| 245 | printf "%s\n" "$*" |
300 | printf "%s\n" "$*" |
| 246 | return 0 |
301 | return 0 |
| 247 | fi |
302 | fi |
| 248 | return 1 |
303 | return 1 |
| 249 | } |
304 | } |
| 250 | |
305 | |
| 251 | test_version_info() { |
306 | test_version_info() { |
| 252 | local cc=${CC:-gcc} ; cc=${cc%% *} |
|
|
| 253 | if [[ $(${cc} --version 2>&1) == *$1* ]]; then |
307 | if [[ $($(tc-getCC) --version 2>&1) == *$1* ]]; then |
| 254 | return 0 |
308 | return 0 |
| 255 | else |
309 | else |
| 256 | return 1 |
310 | return 1 |
| 257 | fi |
311 | fi |
| 258 | } |
312 | } |
| … | |
… | |
| 286 | fi |
340 | fi |
| 287 | done |
341 | done |
| 288 | return 1 |
342 | return 1 |
| 289 | } |
343 | } |
| 290 | |
344 | |
|
|
345 | # DEPRECATED - use gcc-specs-relro or gcc-specs-now from toolchain-funcs |
| 291 | has_hardened() { |
346 | has_hardened() { |
| 292 | test_version_info Hardened |
347 | test_version_info Hardened && return 0 |
|
|
348 | # the specs file wont exist unless gcc has GCC_SPECS support |
|
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349 | [ -f "${GCC_SPECS}" -a "${GCC_SPECS}" != "${GCC_SPECS/hardened/}" ] && \ |
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350 | return 0 |
| 293 | return $? |
351 | return 1 |
| 294 | } |
352 | } |
| 295 | |
353 | |
|
|
354 | # DEPRECATED - use gcc-specs-pie from toolchain-funcs |
|
|
355 | # indicate whether PIC is set |
| 296 | has_pic() { |
356 | has_pic() { |
| 297 | [ "${CFLAGS/-fPIC}" != "${CFLAGS}" ] && return 0 |
357 | [ "${CFLAGS/-fPIC}" != "${CFLAGS}" ] && return 0 |
| 298 | [ "${CFLAGS/-fpic}" != "${CFLAGS}" ] && return 0 |
358 | [ "${CFLAGS/-fpic}" != "${CFLAGS}" ] && return 0 |
| 299 | test_version_info pie && return 0 |
359 | [ "$(echo | $(tc-getCC) ${CFLAGS} -E -dM - | grep __PIC__)" ] && return 0 |
| 300 | return 1 |
360 | return 1 |
| 301 | } |
361 | } |
| 302 | |
362 | |
|
|
363 | # DEPRECATED - use gcc-specs-pie from toolchain-funcs |
|
|
364 | # indicate whether PIE is set |
| 303 | has_pie() { |
365 | has_pie() { |
| 304 | [ "${CFLAGS/-fPIE}" != "${CFLAGS}" ] && return 0 |
366 | [ "${CFLAGS/-fPIE}" != "${CFLAGS}" ] && return 0 |
| 305 | [ "${CFLAGS/-fpie}" != "${CFLAGS}" ] && return 0 |
367 | [ "${CFLAGS/-fpie}" != "${CFLAGS}" ] && return 0 |
| 306 | test_version_info pie && return 0 |
368 | [ "$(echo | $(tc-getCC) ${CFLAGS} -E -dM - | grep __PIE__)" ] && return 0 |
|
|
369 | # test PIC while waiting for specs to be updated to generate __PIE__ |
|
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370 | [ "$(echo | $(tc-getCC) ${CFLAGS} -E -dM - | grep __PIC__)" ] && return 0 |
| 307 | return 1 |
371 | return 1 |
| 308 | } |
372 | } |
| 309 | |
373 | |
|
|
374 | # DEPRECATED - use gcc-specs-ssp from toolchain-funcs |
|
|
375 | # indicate whether code for SSP is being generated for all functions |
|
|
376 | has_ssp_all() { |
|
|
377 | # note; this matches only -fstack-protector-all |
|
|
378 | [ "${CFLAGS/-fstack-protector-all}" != "${CFLAGS}" ] && return 0 |
|
|
379 | [ "$(echo | $(tc-getCC) ${CFLAGS} -E -dM - | grep __SSP_ALL__)" ] && return 0 |
|
|
380 | gcc-specs-ssp && return 0 |
|
|
381 | return 1 |
|
|
382 | } |
|
|
383 | |
|
|
384 | # DEPRECATED - use gcc-specs-ssp from toolchain-funcs |
|
|
385 | # indicate whether code for SSP is being generated |
| 310 | has_ssp() { |
386 | has_ssp() { |
|
|
387 | # note; this matches both -fstack-protector and -fstack-protector-all |
| 311 | [ "${CFLAGS/-fstack-protector}" != "${CFLAGS}" ] && return 0 |
388 | [ "${CFLAGS/-fstack-protector}" != "${CFLAGS}" ] && return 0 |
| 312 | test_version_info ssp && return 0 |
389 | [ "$(echo | $(tc-getCC) ${CFLAGS} -E -dM - | grep __SSP__)" ] && return 0 |
|
|
390 | gcc-specs-ssp && return 0 |
| 313 | return 1 |
391 | return 1 |
| 314 | } |
392 | } |
| 315 | |
393 | |
| 316 | has_m64() { |
394 | has_m64() { |
| 317 | # this doesnt test if the flag is accepted, it tests if the flag |
395 | # this doesnt test if the flag is accepted, it tests if the flag |
| 318 | # actually -WORKS-. non-multilib gcc will take both -m32 and -m64! |
396 | # actually -WORKS-. non-multilib gcc will take both -m32 and -m64! |
| 319 | # please dont replace this function with test_flag in some future |
397 | # please dont replace this function with test_flag in some future |
| 320 | # clean-up! |
398 | # clean-up! |
| 321 | temp=`mktemp` |
399 | local temp="$(emktemp)" |
| 322 | echo "int main() { return(0); }" > ${temp}.c |
400 | echo "int main() { return(0); }" > ${temp}.c |
| 323 | ${CC/ .*/} -m64 -o /dev/null ${temp}.c > /dev/null 2>&1 |
401 | MY_CC=$(tc-getCC) |
| 324 | ret=$? |
402 | ${MY_CC/ .*/} -m64 -o "$(emktemp)" ${temp}.c > /dev/null 2>&1 |
|
|
403 | local ret=$? |
| 325 | rm -f ${temp}.c |
404 | rm -f ${temp}.c |
| 326 | [ "$ret" != "1" ] && return 0 |
405 | [ "$ret" != "1" ] && return 0 |
| 327 | return 1 |
406 | return 1 |
| 328 | } |
407 | } |
| 329 | |
408 | |
| 330 | has_m32() { |
409 | has_m32() { |
| 331 | # this doesnt test if the flag is accepted, it tests if the flag |
410 | # this doesnt test if the flag is accepted, it tests if the flag |
| 332 | # actually -WORKS-. non-multilib gcc will take both -m32 and -m64! |
411 | # actually -WORKS-. non-multilib gcc will take both -m32 and -m64! |
| 333 | # please dont replace this function with test_flag in some future |
412 | # please dont replace this function with test_flag in some future |
| 334 | # clean-up! |
413 | # clean-up! |
| 335 | temp=`mktemp` |
414 | |
|
|
415 | [ "$(tc-arch)" = "amd64" ] && has_multilib_profile && return 0 |
|
|
416 | |
|
|
417 | local temp="$(emktemp)" |
| 336 | echo "int main() { return(0); }" > ${temp}.c |
418 | echo "int main() { return(0); }" > ${temp}.c |
| 337 | ${CC/ .*/} -m32 -o /dev/null ${temp}.c > /dev/null 2>&1 |
419 | MY_CC=$(tc-getCC) |
| 338 | ret=$? |
420 | ${MY_CC/ .*/} -m32 -o "$(emktemp)" ${temp}.c > /dev/null 2>&1 |
|
|
421 | local ret=$? |
| 339 | rm -f ${temp}.c |
422 | rm -f ${temp}.c |
| 340 | [ "$ret" != "1" ] && return 0 |
423 | [ "$ret" != "1" ] && return 0 |
| 341 | return 1 |
424 | return 1 |
| 342 | } |
425 | } |
| 343 | |
426 | |
| 344 | replace-sparc64-flags() { |
427 | replace-sparc64-flags() { |
| 345 | local SPARC64_CPUS="ultrasparc v9" |
428 | local SPARC64_CPUS="ultrasparc v9" |
| 346 | |
429 | |
| 347 | if [ "${CFLAGS/mtune}" != "${CFLAGS}" ]; then |
430 | if [ "${CFLAGS/mtune}" != "${CFLAGS}" ]; then |
| 348 | for x in ${SPARC64_CPUS}; do |
431 | for x in ${SPARC64_CPUS}; do |
| 349 | CFLAGS="${CFLAGS/-mcpu=${x}/-mcpu=v8}" |
432 | CFLAGS="${CFLAGS/-mcpu=${x}/-mcpu=v8}" |
| 350 | done |
433 | done |
| 351 | else |
434 | else |
| 352 | for x in ${SPARC64_CPUS}; do |
435 | for x in ${SPARC64_CPUS}; do |
| 353 | CFLAGS="${CFLAGS/-mcpu=${x}/-mcpu=v8 -mtune=${x}}" |
436 | CFLAGS="${CFLAGS/-mcpu=${x}/-mcpu=v8 -mtune=${x}}" |
| 354 | done |
437 | done |
| 355 | fi |
438 | fi |
| 356 | |
439 | |
| 357 | if [ "${CXXFLAGS/mtune}" != "${CXXFLAGS}" ]; then |
440 | if [ "${CXXFLAGS/mtune}" != "${CXXFLAGS}" ]; then |
| 358 | for x in ${SPARC64_CPUS}; do |
441 | for x in ${SPARC64_CPUS}; do |
| 359 | CXXFLAGS="${CXXFLAGS/-mcpu=${x}/-mcpu=v8}" |
442 | CXXFLAGS="${CXXFLAGS/-mcpu=${x}/-mcpu=v8}" |
| 360 | done |
443 | done |
| 361 | else |
444 | else |
| 362 | for x in ${SPARC64_CPUS}; do |
445 | for x in ${SPARC64_CPUS}; do |
| … | |
… | |
| 377 | |
460 | |
| 378 | # we do this fancy spacing stuff so as to not filter |
461 | # we do this fancy spacing stuff so as to not filter |
| 379 | # out part of a flag ... we want flag atoms ! :D |
462 | # out part of a flag ... we want flag atoms ! :D |
| 380 | LDFLAGS=" ${LDFLAGS} " |
463 | LDFLAGS=" ${LDFLAGS} " |
| 381 | for x in "$@" ; do |
464 | for x in "$@" ; do |
| 382 | LDFLAGS="${LDFLAGS// ${x} / }" |
465 | LDFLAGS=${LDFLAGS// ${x} / } |
| 383 | done |
466 | done |
|
|
467 | [[ -z ${LDFLAGS// } ]] \ |
|
|
468 | && LDFLAGS="" \ |
| 384 | LDFLAGS="${LDFLAGS:1:${#LDFLAGS}-2}" |
469 | || LDFLAGS=${LDFLAGS:1:${#LDFLAGS}-2} |
| 385 | export LDFLAGS |
470 | export LDFLAGS |
| 386 | return 0 |
471 | return 0 |
| 387 | } |
472 | } |
| 388 | |
473 | |
| 389 | etexec-flags() { |
|
|
| 390 | # if you're not using a hardened compiler you wont need this |
|
|
| 391 | # PIC/no-pic kludge in the first place. |
|
|
| 392 | has_hardened || return 0 |
|
|
| 393 | |
|
|
| 394 | if has_pie || has_pic; then |
|
|
| 395 | [ -z "`is-flag -fno-pic`" ] && |
|
|
| 396 | export CFLAGS="${CFLAGS} `test_flag -fno-pic`" |
|
|
| 397 | [ -z "`is-flag -nopie`" ] && |
|
|
| 398 | export CFLAGS="${CFLAGS} `test_flag -nopie`" |
|
|
| 399 | fi |
|
|
| 400 | return 0 |
|
|
| 401 | } |
|
|
| 402 | |
|
|
| 403 | fstack-flags() { |
474 | fstack-flags() { |
| 404 | if has_ssp; then |
475 | if gcc-specs-ssp; then |
| 405 | [ -z "`is-flag -fno-stack-protector`" ] && |
476 | [ -z "`is-flag -fno-stack-protector`" ] && |
| 406 | export CFLAGS="${CFLAGS} `test_flag -fno-stack-protector`" |
477 | export CFLAGS="${CFLAGS} `test_flag -fno-stack-protector`" |
| 407 | fi |
478 | fi |
| 408 | return 0 |
479 | return 0 |
| 409 | } |
480 | } |
|
|
481 | |
|
|
482 | # This is thanks to great work from Paul de Vrieze <gentoo-user@devrieze.net>, |
|
|
483 | # bug #9016. Also thanks to Jukka Salmi <salmi@gmx.net> (bug #13907) for more |
|
|
484 | # fixes. |
|
|
485 | # |
|
|
486 | # Export CFLAGS and CXXFLAGS that are compadible with gcc-2.95.3 |
|
|
487 | gcc2-flags() { |
|
|
488 | if [[ $(tc-arch) == "x86" || $(tc-arch) == "amd64" ]] ; then |
|
|
489 | CFLAGS=${CFLAGS//-mtune=/-mcpu=} |
|
|
490 | CXXFLAGS=${CXXFLAGS//-mtune=/-mcpu=} |
|
|
491 | fi |
|
|
492 | |
|
|
493 | replace-cpu-flags k6-{2,3} k6 |
|
|
494 | replace-cpu-flags athlon{,-{tbird,4,xp,mp}} i686 |
|
|
495 | |
|
|
496 | replace-cpu-flags pentium-mmx i586 |
|
|
497 | replace-cpu-flags pentium{2,3,4} i686 |
|
|
498 | |
|
|
499 | replace-cpu-flags ev6{7,8} ev6 |
|
|
500 | |
|
|
501 | export CFLAGS CXXFLAGS |
|
|
502 | } |
|
|
503 | |
|
|
504 | # Gets the flags needed for "NOW" binding |
|
|
505 | bindnow-flags() { |
|
|
506 | case $($(tc-getLD) -v 2>&1 </dev/null) in |
|
|
507 | *GNU* | *'with BFD'*) # GNU ld |
|
|
508 | echo "-Wl,-z,now" ;; |
|
|
509 | *Apple*) # Darwin ld |
|
|
510 | echo "-bind_at_load" ;; |
|
|
511 | *) |
|
|
512 | # Some linkers just recognize -V instead of -v |
|
|
513 | case $($(tc-getLD) -V 2>&1 </dev/null) in |
|
|
514 | *Solaris*) # Solaris accept almost the same GNU options |
|
|
515 | echo "-Wl,-z,now" ;; |
|
|
516 | esac |
|
|
517 | ;; |
|
|
518 | esac |
|
|
519 | } |
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