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 1.93 2005/09/27 01:06:47 vapier 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 | # |
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57 | #### etexec-flags #### |
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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 | # |
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62 | # |
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63 | ################ DEPRECATED functions ################ |
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64 | # The following are still present to avoid breaking existing |
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65 | # code more than necessary; however they are deprecated. Please |
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66 | # use gcc-specs-* from toolchain-funcs.eclass instead, if you |
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67 | # need to know which hardened techs are active in the compiler. |
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68 | # See bug #100974 |
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69 | # |
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70 | #### has_hardened #### |
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71 | # Returns true if the compiler has 'Hardened' in its version string, |
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72 | # (note; switched-spec vanilla compilers satisfy this condition) or |
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73 | # the specs file name contains 'hardened'. |
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74 | # |
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75 | #### has_pie #### |
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76 | # Returns true if the compiler by default or with current CFLAGS |
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77 | # builds position-independent code. |
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78 | # |
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79 | #### has_pic #### |
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80 | # Returns true if the compiler by default or with current CFLAGS |
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81 | # builds position-independent code. |
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82 | # |
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83 | #### has_ssp_all #### |
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84 | # Returns true if the compiler by default or with current CFLAGS |
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85 | # generates stack smash protections for all functions |
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86 | # |
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87 | #### has_ssp #### |
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88 | # Returns true if the compiler by default or with current CFLAGS |
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89 | # generates stack smash protections for most vulnerable functions |
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90 | # |
69 | |
91 | |
70 | # C[XX]FLAGS that we allow in strip-flags |
92 | # C[XX]FLAGS that we allow in strip-flags |
71 | setup-allowed-flags() { |
93 | setup-allowed-flags() { |
72 | if [ -z "${ALLOWED_FLAGS}" ] ; then |
94 | if [[ -z ${ALLOWED_FLAGS} ]] ; then |
73 | export ALLOWED_FLAGS="-O -O1 -O2 -mcpu -march -mtune -fstack-protector -fno-unit-at-a-time -pipe -g" |
95 | export ALLOWED_FLAGS="-pipe" |
74 | case "${ARCH}" in |
96 | export ALLOWED_FLAGS="${ALLOWED_FLAGS} -O -O0 -O1 -O2 -mcpu -march -mtune" |
75 | mips) ALLOWED_FLAGS="${ALLOWED_FLAGS} -mips1 -mips2 -mips3 -mips4 -mabi" ;; |
97 | export ALLOWED_FLAGS="${ALLOWED_FLAGS} -fstack-protector -fstack-protector-all" |
76 | amd64) ALLOWED_FLAGS="${ALLOWED_FLAGS} -fPIC -m64" ;; |
98 | export ALLOWED_FLAGS="${ALLOWED_FLAGS} -fbounds-checking -fno-bounds-checking" |
77 | x86) ALLOWED_FLAGS="${ALLOWED_FLAGS} -m32" ;; |
99 | export ALLOWED_FLAGS="${ALLOWED_FLAGS} -fno-pie -fno-unit-at-a-time" |
78 | alpha) ALLOWED_FLAGS="${ALLOWED_FLAGS} -fPIC" ;; |
100 | export ALLOWED_FLAGS="${ALLOWED_FLAGS} -g -g0 -g1 -g2 -g3 -ggdb -ggdb0 -ggdb1 -ggdb2 -ggdb3" |
79 | ia64) ALLOWED_FLAGS="${ALLOWED_FLAGS} -fPIC" ;; |
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80 | esac |
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81 | fi |
101 | fi |
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102 | # allow a bunch of flags that negate features / control ABI |
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103 | ALLOWED_FLAGS="${ALLOWED_FLAGS} -fno-stack-protector -fno-stack-protector-all" |
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104 | ALLOWED_FLAGS="${ALLOWED_FLAGS} -mregparm -mno-app-regs -mapp-regs \ |
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105 | -mno-mmx -mno-sse -mno-sse2 -mno-sse3 -mno-3dnow \ |
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106 | -mips1 -mips2 -mips3 -mips4 -mips32 -mips64 -mips16 \ |
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107 | -msoft-float -mno-soft-float -mhard-float -mno-hard-float -mfpu \ |
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108 | -mieee -mieee-with-inexact \ |
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109 | -mtls-direct-seg-refs -mno-tls-direct-seg-refs \ |
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110 | -mflat -mno-flat -mno-faster-structs -mfaster-structs \ |
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111 | -m32 -m64 -mabi -mlittle-endian -mbig-endian -EL -EB -fPIC \ |
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112 | -mlive-g0 -mcmodel -mstack-bias -mno-stack-bias" |
82 | |
113 | |
83 | # C[XX]FLAGS that we are think is ok, but needs testing |
114 | # C[XX]FLAGS that we are think is ok, but needs testing |
84 | # NOTE: currently -Os have issues with gcc3 and K6* arch's |
115 | # NOTE: currently -Os have issues with gcc3 and K6* arch's |
85 | export UNSTABLE_FLAGS="-Os -O3 -freorder-blocks -fprefetch-loop-arrays" |
116 | export UNSTABLE_FLAGS="-Os -O3 -freorder-blocks -fprefetch-loop-arrays" |
86 | return 0 |
117 | return 0 |
87 | } |
118 | } |
88 | |
119 | |
89 | filter-flags() { |
120 | filter-flags() { |
90 | local x f fset |
121 | local x f fset |
91 | declare -a new_CFLAGS new_CXXFLAGS |
122 | declare -a new_CFLAGS new_CXXFLAGS |
92 | |
123 | |
93 | for x in "$@" ; do |
124 | for x in "$@" ; do |
94 | case "${x}" in |
125 | case "${x}" in |
95 | -fPIC|-fpic|-fPIE|-fpie|-pie) etexec-flags;; |
126 | -fPIC|-fpic|-fPIE|-fpie|-pie) |
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127 | append-flags `test_flag -fno-pie`;; |
96 | -fstack-protector|-fstack-protector-all) fstack-flags;; |
128 | -fstack-protector|-fstack-protector-all) |
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129 | fstack-flags;; |
97 | esac |
130 | esac |
98 | done |
131 | done |
99 | |
132 | |
100 | for fset in CFLAGS CXXFLAGS; do |
133 | for fset in CFLAGS CXXFLAGS; do |
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134 | # Looping over the flags instead of using a global |
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135 | # substitution ensures that we're working with flag atoms. |
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136 | # Otherwise globs like -O* have the potential to wipe out the |
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137 | # list of flags. |
101 | for f in ${!fset}; do |
138 | for f in ${!fset}; do |
102 | for x in "$@"; do |
139 | for x in "$@"; do |
103 | # Note this should work with globs like -O* |
140 | # Note this should work with globs like -O* |
104 | [[ ${f} == ${x} ]] && continue 2 |
141 | [[ ${f} == ${x} ]] && continue 2 |
105 | done |
142 | done |
… | |
… | |
110 | |
147 | |
111 | return 0 |
148 | return 0 |
112 | } |
149 | } |
113 | |
150 | |
114 | filter-lfs-flags() { |
151 | filter-lfs-flags() { |
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152 | [[ -n $@ ]] && die "filter-lfs-flags takes no arguments" |
115 | filter-flags -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE |
153 | filter-flags -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE |
116 | } |
154 | } |
117 | |
155 | |
118 | append-lfs-flags() { |
156 | append-lfs-flags() { |
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157 | [[ -n $@ ]] && die "append-lfs-flags takes no arguments" |
119 | append-flags -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE |
158 | append-flags -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE |
120 | } |
159 | } |
121 | |
160 | |
122 | append-flags() { |
161 | append-flags() { |
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162 | [[ -z $* ]] && return 0 |
123 | export CFLAGS="${CFLAGS} $*" |
163 | export CFLAGS="${CFLAGS} $*" |
124 | export CXXFLAGS="${CXXFLAGS} $*" |
164 | export CXXFLAGS="${CXXFLAGS} $*" |
125 | [ -n "`is-flag -fno-stack-protector`" -o \ |
165 | [ -n "`is-flag -fno-stack-protector`" -o \ |
126 | -n "`is-flag -fno-stack-protector-all`" ] && fstack-flags |
166 | -n "`is-flag -fno-stack-protector-all`" ] && fstack-flags |
127 | return 0 |
167 | return 0 |
128 | } |
168 | } |
129 | |
169 | |
130 | replace-flags() { |
170 | replace-flags() { |
131 | # we do this fancy spacing stuff so as to not filter |
171 | [[ $# != 2 ]] \ |
132 | # out part of a flag ... we want flag atoms ! :D |
172 | && echo && eerror "Usage: replace-flags <old flag> <new flag>" \ |
133 | CFLAGS=" ${CFLAGS} " |
173 | && die "replace-flags takes 2 arguments, not $#" |
134 | CXXFLAGS=" ${CXXFLAGS} " |
174 | |
135 | CFLAGS="${CFLAGS// ${1} / ${2} }" |
175 | local f fset |
136 | CXXFLAGS="${CXXFLAGS// ${1} / ${2} }" |
176 | declare -a new_CFLAGS new_CXXFLAGS |
137 | CFLAGS="${CFLAGS:1:${#CFLAGS}-2}" |
177 | |
138 | CXXFLAGS="${CXXFLAGS:1:${#CXXFLAGS}-2}" |
178 | for fset in CFLAGS CXXFLAGS; do |
139 | export CFLAGS CXXFLAGS |
179 | # Looping over the flags instead of using a global |
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180 | # substitution ensures that we're working with flag atoms. |
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181 | # Otherwise globs like -O* have the potential to wipe out the |
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182 | # list of flags. |
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183 | for f in ${!fset}; do |
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184 | # Note this should work with globs like -O* |
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185 | [[ ${f} == ${1} ]] && f=${2} |
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186 | eval new_${fset}\[\${\#new_${fset}\[@]}]=\${f} |
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187 | done |
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188 | eval export ${fset}=\${new_${fset}\[*]} |
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189 | done |
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190 | |
140 | return 0 |
191 | return 0 |
141 | } |
192 | } |
142 | |
193 | |
143 | replace-cpu-flags() { |
194 | replace-cpu-flags() { |
144 | local oldcpu newcpu="$1" ; shift |
195 | local newcpu="$#" ; newcpu="${!newcpu}" |
145 | for oldcpu in "$@" ; do |
196 | while [ $# -gt 1 ] ; do |
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197 | # quote to make sure that no globbing is done (particularly on |
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198 | # ${oldcpu} prior to calling replace-flags |
146 | replace-flags -march=${oldcpu} -march=${newcpu} |
199 | replace-flags "-march=${1}" "-march=${newcpu}" |
147 | replace-flags -mcpu=${oldcpu} -mcpu=${newcpu} |
200 | replace-flags "-mcpu=${1}" "-mcpu=${newcpu}" |
148 | replace-flags -mtune=${oldcpu} -mtune=${newcpu} |
201 | replace-flags "-mtune=${1}" "-mtune=${newcpu}" |
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202 | shift |
149 | done |
203 | done |
150 | return 0 |
204 | return 0 |
151 | } |
205 | } |
152 | |
206 | |
153 | is-flag() { |
207 | is-flag() { |
154 | local x |
208 | local x |
155 | |
209 | |
156 | for x in ${CFLAGS} ${CXXFLAGS} ; do |
210 | for x in ${CFLAGS} ${CXXFLAGS} ; do |
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211 | # Note this should work with globs like -mcpu=ultrasparc* |
157 | if [ "${x}" == "$1" ] ; then |
212 | if [[ ${x} == ${1} ]]; then |
158 | echo true |
213 | echo true |
159 | return 0 |
214 | return 0 |
160 | fi |
215 | fi |
161 | done |
216 | done |
162 | return 1 |
217 | return 1 |
… | |
… | |
195 | |
250 | |
196 | local NEW_CFLAGS="" |
251 | local NEW_CFLAGS="" |
197 | local NEW_CXXFLAGS="" |
252 | local NEW_CXXFLAGS="" |
198 | |
253 | |
199 | # Allow unstable C[XX]FLAGS if we are using unstable profile ... |
254 | # Allow unstable C[XX]FLAGS if we are using unstable profile ... |
200 | if has ~${ARCH} ${ACCEPT_KEYWORDS} ; then |
255 | if has ~$(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} ${UNSTABLE_FLAGS}" |
256 | ALLOWED_FLAGS="${ALLOWED_FLAGS} ${UNSTABLE_FLAGS}" |
203 | fi |
257 | fi |
204 | |
258 | |
205 | set -f # disable pathname expansion |
259 | set -f # disable pathname expansion |
206 | |
260 | |
207 | for x in ${CFLAGS}; do |
261 | for x in ${CFLAGS}; do |
208 | for y in ${ALLOWED_FLAGS}; do |
262 | for y in ${ALLOWED_FLAGS}; do |
209 | flag=${x%%=*} |
263 | flag=${x%%=*} |
210 | if [ "${flag%%${y}}" = "" ]; then |
264 | if [ "${flag%%${y}}" = "" ] ; then |
211 | NEW_CFLAGS="${NEW_CFLAGS} ${x}" |
265 | NEW_CFLAGS="${NEW_CFLAGS} ${x}" |
212 | break |
266 | break |
213 | fi |
267 | fi |
214 | done |
268 | done |
215 | done |
269 | done |
216 | |
270 | |
217 | for x in ${CXXFLAGS}; do |
271 | for x in ${CXXFLAGS}; do |
218 | for y in ${ALLOWED_FLAGS}; do |
272 | for y in ${ALLOWED_FLAGS}; do |
219 | flag=${x%%=*} |
273 | flag=${x%%=*} |
220 | if [ "${flag%%${y}}" = "" ]; then |
274 | if [ "${flag%%${y}}" = "" ] ; then |
221 | NEW_CXXFLAGS="${NEW_CXXFLAGS} ${x}" |
275 | NEW_CXXFLAGS="${NEW_CXXFLAGS} ${x}" |
222 | break |
276 | break |
223 | fi |
277 | fi |
224 | done |
278 | done |
225 | done |
279 | done |
… | |
… | |
238 | export CXXFLAGS="${NEW_CXXFLAGS}" |
292 | export CXXFLAGS="${NEW_CXXFLAGS}" |
239 | return 0 |
293 | return 0 |
240 | } |
294 | } |
241 | |
295 | |
242 | test_flag() { |
296 | test_flag() { |
243 | local cc=${CC:-gcc} ; cc=${cc%% *} |
297 | 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" "$*" |
298 | printf "%s\n" "$*" |
246 | return 0 |
299 | return 0 |
247 | fi |
300 | fi |
248 | return 1 |
301 | return 1 |
249 | } |
302 | } |
250 | |
303 | |
251 | test_version_info() { |
304 | test_version_info() { |
252 | local cc=${CC:-gcc} ; cc=${cc%% *} |
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253 | if [[ $(${cc} --version 2>&1) == *$1* ]]; then |
305 | if [[ $($(tc-getCC) --version 2>&1) == *$1* ]]; then |
254 | return 0 |
306 | return 0 |
255 | else |
307 | else |
256 | return 1 |
308 | return 1 |
257 | fi |
309 | fi |
258 | } |
310 | } |
… | |
… | |
286 | fi |
338 | fi |
287 | done |
339 | done |
288 | return 1 |
340 | return 1 |
289 | } |
341 | } |
290 | |
342 | |
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343 | # DEPRECATED - use gcc-specs-relro or gcc-specs-now from toolchain-funcs |
291 | has_hardened() { |
344 | has_hardened() { |
292 | test_version_info Hardened |
345 | test_version_info Hardened && return 0 |
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346 | # the specs file wont exist unless gcc has GCC_SPECS support |
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347 | [ -f "${GCC_SPECS}" -a "${GCC_SPECS}" != "${GCC_SPECS/hardened/}" ] && \ |
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348 | return 0 |
293 | return $? |
349 | return 1 |
294 | } |
350 | } |
295 | |
351 | |
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352 | # DEPRECATED - use gcc-specs-pie from toolchain-funcs |
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353 | # indicate whether PIC is set |
296 | has_pic() { |
354 | has_pic() { |
297 | [ "${CFLAGS/-fPIC}" != "${CFLAGS}" ] && return 0 |
355 | [ "${CFLAGS/-fPIC}" != "${CFLAGS}" ] && return 0 |
298 | [ "${CFLAGS/-fpic}" != "${CFLAGS}" ] && return 0 |
356 | [ "${CFLAGS/-fpic}" != "${CFLAGS}" ] && return 0 |
299 | test_version_info pie && return 0 |
357 | [ "$(echo | $(tc-getCC) ${CFLAGS} -E -dM - | grep __PIC__)" ] && return 0 |
300 | return 1 |
358 | return 1 |
301 | } |
359 | } |
302 | |
360 | |
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361 | # DEPRECATED - use gcc-specs-pie from toolchain-funcs |
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362 | # indicate whether PIE is set |
303 | has_pie() { |
363 | has_pie() { |
304 | [ "${CFLAGS/-fPIE}" != "${CFLAGS}" ] && return 0 |
364 | [ "${CFLAGS/-fPIE}" != "${CFLAGS}" ] && return 0 |
305 | [ "${CFLAGS/-fpie}" != "${CFLAGS}" ] && return 0 |
365 | [ "${CFLAGS/-fpie}" != "${CFLAGS}" ] && return 0 |
306 | test_version_info pie && return 0 |
366 | [ "$(echo | $(tc-getCC) ${CFLAGS} -E -dM - | grep __PIE__)" ] && return 0 |
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367 | # test PIC while waiting for specs to be updated to generate __PIE__ |
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368 | [ "$(echo | $(tc-getCC) ${CFLAGS} -E -dM - | grep __PIC__)" ] && return 0 |
307 | return 1 |
369 | return 1 |
308 | } |
370 | } |
309 | |
371 | |
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372 | # DEPRECATED - use gcc-specs-ssp from toolchain-funcs |
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373 | # indicate whether code for SSP is being generated for all functions |
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374 | has_ssp_all() { |
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375 | # note; this matches only -fstack-protector-all |
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376 | [ "${CFLAGS/-fstack-protector-all}" != "${CFLAGS}" ] && return 0 |
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377 | [ "$(echo | $(tc-getCC) ${CFLAGS} -E -dM - | grep __SSP_ALL__)" ] && return 0 |
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378 | gcc-specs-ssp && return 0 |
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379 | return 1 |
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380 | } |
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381 | |
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382 | # DEPRECATED - use gcc-specs-ssp from toolchain-funcs |
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383 | # indicate whether code for SSP is being generated |
310 | has_ssp() { |
384 | has_ssp() { |
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385 | # note; this matches both -fstack-protector and -fstack-protector-all |
311 | [ "${CFLAGS/-fstack-protector}" != "${CFLAGS}" ] && return 0 |
386 | [ "${CFLAGS/-fstack-protector}" != "${CFLAGS}" ] && return 0 |
312 | test_version_info ssp && return 0 |
387 | [ "$(echo | $(tc-getCC) ${CFLAGS} -E -dM - | grep __SSP__)" ] && return 0 |
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388 | gcc-specs-ssp && return 0 |
313 | return 1 |
389 | return 1 |
314 | } |
390 | } |
315 | |
391 | |
316 | has_m64() { |
392 | has_m64() { |
317 | # this doesnt test if the flag is accepted, it tests if the flag |
393 | # this doesnt test if the flag is accepted, it tests if the flag |
318 | # actually -WORKS-. non-multilib gcc will take both -m32 and -m64! |
394 | # actually -WORKS-. non-multilib gcc will take both -m32 and -m64! |
319 | # please dont replace this function with test_flag in some future |
395 | # please dont replace this function with test_flag in some future |
320 | # clean-up! |
396 | # clean-up! |
321 | temp=`mktemp` |
397 | local temp="$(emktemp)" |
322 | echo "int main() { return(0); }" > ${temp}.c |
398 | echo "int main() { return(0); }" > ${temp}.c |
323 | ${CC/ .*/} -m64 -o /dev/null ${temp}.c > /dev/null 2>&1 |
399 | MY_CC=$(tc-getCC) |
324 | ret=$? |
400 | ${MY_CC/ .*/} -m64 -o "$(emktemp)" ${temp}.c > /dev/null 2>&1 |
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401 | local ret=$? |
325 | rm -f ${temp}.c |
402 | rm -f ${temp}.c |
326 | [ "$ret" != "1" ] && return 0 |
403 | [ "$ret" != "1" ] && return 0 |
327 | return 1 |
404 | return 1 |
328 | } |
405 | } |
329 | |
406 | |
330 | has_m32() { |
407 | has_m32() { |
331 | # this doesnt test if the flag is accepted, it tests if the flag |
408 | # this doesnt test if the flag is accepted, it tests if the flag |
332 | # actually -WORKS-. non-multilib gcc will take both -m32 and -m64! |
409 | # actually -WORKS-. non-multilib gcc will take both -m32 and -m64! |
333 | # please dont replace this function with test_flag in some future |
410 | # please dont replace this function with test_flag in some future |
334 | # clean-up! |
411 | # clean-up! |
335 | temp=`mktemp` |
412 | |
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|
413 | [ "$(tc-arch)" = "amd64" ] && has_multilib_profile && return 0 |
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|
414 | |
|
|
415 | local temp="$(emktemp)" |
336 | echo "int main() { return(0); }" > ${temp}.c |
416 | echo "int main() { return(0); }" > ${temp}.c |
337 | ${CC/ .*/} -m32 -o /dev/null ${temp}.c > /dev/null 2>&1 |
417 | MY_CC=$(tc-getCC) |
338 | ret=$? |
418 | ${MY_CC/ .*/} -m32 -o "$(emktemp)" ${temp}.c > /dev/null 2>&1 |
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419 | local ret=$? |
339 | rm -f ${temp}.c |
420 | rm -f ${temp}.c |
340 | [ "$ret" != "1" ] && return 0 |
421 | [ "$ret" != "1" ] && return 0 |
341 | return 1 |
422 | return 1 |
342 | } |
423 | } |
343 | |
424 | |
344 | replace-sparc64-flags() { |
425 | replace-sparc64-flags() { |
345 | local SPARC64_CPUS="ultrasparc v9" |
426 | local SPARC64_CPUS="ultrasparc v9" |
346 | |
427 | |
347 | if [ "${CFLAGS/mtune}" != "${CFLAGS}" ]; then |
428 | if [ "${CFLAGS/mtune}" != "${CFLAGS}" ]; then |
348 | for x in ${SPARC64_CPUS}; do |
429 | for x in ${SPARC64_CPUS}; do |
349 | CFLAGS="${CFLAGS/-mcpu=${x}/-mcpu=v8}" |
430 | CFLAGS="${CFLAGS/-mcpu=${x}/-mcpu=v8}" |
350 | done |
431 | done |
351 | else |
432 | else |
352 | for x in ${SPARC64_CPUS}; do |
433 | for x in ${SPARC64_CPUS}; do |
353 | CFLAGS="${CFLAGS/-mcpu=${x}/-mcpu=v8 -mtune=${x}}" |
434 | CFLAGS="${CFLAGS/-mcpu=${x}/-mcpu=v8 -mtune=${x}}" |
354 | done |
435 | done |
355 | fi |
436 | fi |
356 | |
437 | |
357 | if [ "${CXXFLAGS/mtune}" != "${CXXFLAGS}" ]; then |
438 | if [ "${CXXFLAGS/mtune}" != "${CXXFLAGS}" ]; then |
358 | for x in ${SPARC64_CPUS}; do |
439 | for x in ${SPARC64_CPUS}; do |
359 | CXXFLAGS="${CXXFLAGS/-mcpu=${x}/-mcpu=v8}" |
440 | CXXFLAGS="${CXXFLAGS/-mcpu=${x}/-mcpu=v8}" |
360 | done |
441 | done |
361 | else |
442 | else |
362 | for x in ${SPARC64_CPUS}; do |
443 | for x in ${SPARC64_CPUS}; do |
… | |
… | |
377 | |
458 | |
378 | # we do this fancy spacing stuff so as to not filter |
459 | # we do this fancy spacing stuff so as to not filter |
379 | # out part of a flag ... we want flag atoms ! :D |
460 | # out part of a flag ... we want flag atoms ! :D |
380 | LDFLAGS=" ${LDFLAGS} " |
461 | LDFLAGS=" ${LDFLAGS} " |
381 | for x in "$@" ; do |
462 | for x in "$@" ; do |
382 | LDFLAGS="${LDFLAGS// ${x} / }" |
463 | LDFLAGS=${LDFLAGS// ${x} / } |
383 | done |
464 | done |
|
|
465 | [[ -z ${LDFLAGS// } ]] \ |
|
|
466 | && LDFLAGS="" \ |
384 | LDFLAGS="${LDFLAGS:1:${#LDFLAGS}-2}" |
467 | || LDFLAGS=${LDFLAGS:1:${#LDFLAGS}-2} |
385 | export LDFLAGS |
468 | export LDFLAGS |
386 | return 0 |
469 | return 0 |
387 | } |
470 | } |
388 | |
471 | |
389 | etexec-flags() { |
|
|
390 | # if you're not using a hardened compiler you wont need this |
|
|
391 | # PIC/no-pic kludge in the first place. |
|
|
392 | has_hardened || return 0 |
|
|
393 | |
|
|
394 | if has_pie || has_pic; then |
|
|
395 | [ -z "`is-flag -fno-pic`" ] && |
|
|
396 | export CFLAGS="${CFLAGS} `test_flag -fno-pic`" |
|
|
397 | [ -z "`is-flag -nopie`" ] && |
|
|
398 | export CFLAGS="${CFLAGS} `test_flag -nopie`" |
|
|
399 | fi |
|
|
400 | return 0 |
|
|
401 | } |
|
|
402 | |
|
|
403 | fstack-flags() { |
472 | fstack-flags() { |
404 | if has_ssp; then |
473 | if gcc-specs-ssp; then |
405 | [ -z "`is-flag -fno-stack-protector`" ] && |
474 | [ -z "`is-flag -fno-stack-protector`" ] && |
406 | export CFLAGS="${CFLAGS} `test_flag -fno-stack-protector`" |
475 | export CFLAGS="${CFLAGS} `test_flag -fno-stack-protector`" |
407 | fi |
476 | fi |
408 | return 0 |
477 | return 0 |
409 | } |
478 | } |
|
|
479 | |
|
|
480 | # This is thanks to great work from Paul de Vrieze <gentoo-user@devrieze.net>, |
|
|
481 | # bug #9016. Also thanks to Jukka Salmi <salmi@gmx.net> (bug #13907) for more |
|
|
482 | # fixes. |
|
|
483 | # |
|
|
484 | # Export CFLAGS and CXXFLAGS that are compadible with gcc-2.95.3 |
|
|
485 | gcc2-flags() { |
|
|
486 | if [[ $(tc-arch) == "x86" || $(tc-arch) == "amd64" ]] ; then |
|
|
487 | CFLAGS=${CFLAGS//-mtune=/-mcpu=} |
|
|
488 | CXXFLAGS=${CXXFLAGS//-mtune=/-mcpu=} |
|
|
489 | fi |
|
|
490 | |
|
|
491 | replace-cpu-flags k6-{2,3} k6 |
|
|
492 | replace-cpu-flags athlon{,-{tbird,4,xp,mp}} i686 |
|
|
493 | |
|
|
494 | replace-cpu-flags pentium-mmx i586 |
|
|
495 | replace-cpu-flags pentium{2,3,4} i686 |
|
|
496 | |
|
|
497 | replace-cpu-flags ev6{7,8} ev6 |
|
|
498 | |
|
|
499 | export CFLAGS CXXFLAGS |
|
|
500 | } |