1 |
vapier |
1.84 |
# Copyright 1999-2005 Gentoo Foundation |
2 |
verwilst |
1.1 |
# Distributed under the terms of the GNU General Public License v2 |
3 |
kevquinn |
1.104 |
# $Header: /var/cvsroot/gentoo-x86/eclass/flag-o-matic.eclass,v 1.103 2006/01/10 01:14:30 vapier Exp $ |
4 |
azarah |
1.8 |
|
5 |
vapier |
1.63 |
|
6 |
vapier |
1.72 |
# need access to emktemp() |
7 |
eradicator |
1.80 |
inherit eutils toolchain-funcs multilib |
8 |
vapier |
1.72 |
|
9 |
verwilst |
1.2 |
# |
10 |
vapier |
1.18 |
#### filter-flags <flags> #### |
11 |
verwilst |
1.3 |
# Remove particular flags from C[XX]FLAGS |
12 |
vapier |
1.18 |
# Matches only complete flags |
13 |
verwilst |
1.2 |
# |
14 |
vapier |
1.18 |
#### append-flags <flags> #### |
15 |
verwilst |
1.3 |
# Add extra flags to your current C[XX]FLAGS |
16 |
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# |
17 |
verwilst |
1.4 |
#### replace-flags <orig.flag> <new.flag> ### |
18 |
verwilst |
1.3 |
# Replace a flag by another one |
19 |
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# |
20 |
vapier |
1.70 |
#### replace-cpu-flags <old.cpus> <new.cpu> ### |
21 |
vapier |
1.37 |
# Replace march/mcpu flags that specify <old.cpus> |
22 |
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# with flags that specify <new.cpu> |
23 |
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# |
24 |
danarmak |
1.7 |
#### is-flag <flag> #### |
25 |
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# Returns "true" if flag is set in C[XX]FLAGS |
26 |
vapier |
1.18 |
# Matches only complete a flag |
27 |
danarmak |
1.7 |
# |
28 |
azarah |
1.8 |
#### strip-flags #### |
29 |
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# Strip C[XX]FLAGS of everything except known |
30 |
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# good options. |
31 |
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# |
32 |
puggy |
1.29 |
#### strip-unsupported-flags #### |
33 |
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# Strip C[XX]FLAGS of any flags not supported by |
34 |
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# installed version of gcc |
35 |
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# |
36 |
vapier |
1.10 |
#### get-flag <flag> #### |
37 |
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# Find and echo the value for a particular flag |
38 |
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# |
39 |
joker |
1.16 |
#### replace-sparc64-flags #### |
40 |
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# Sets mcpu to v8 and uses the original value |
41 |
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# as mtune if none specified. |
42 |
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# |
43 |
vapier |
1.26 |
#### filter-mfpmath <math types> #### |
44 |
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# Remove specified math types from the fpmath specification |
45 |
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# If the user has -mfpmath=sse,386, running `filter-mfpmath sse` |
46 |
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# will leave the user with -mfpmath=386 |
47 |
solar |
1.27 |
# |
48 |
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#### append-ldflags #### |
49 |
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# Add extra flags to your current LDFLAGS |
50 |
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# |
51 |
solar |
1.41 |
#### filter-ldflags <flags> #### |
52 |
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# Remove particular flags from LDFLAGS |
53 |
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# Matches only complete flags |
54 |
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# |
55 |
solar |
1.27 |
#### fstack-flags #### |
56 |
pappy |
1.50 |
# hooked function for hardened gcc that appends |
57 |
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# -fno-stack-protector to {C,CXX,LD}FLAGS |
58 |
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# when a package is filtering -fstack-protector, -fstack-protector-all |
59 |
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# notice: modern automatic specs files will also suppress -fstack-protector-all |
60 |
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# when only -fno-stack-protector is given |
61 |
solar |
1.27 |
# |
62 |
flameeyes |
1.94 |
#### bindnow-flags #### |
63 |
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# Returns the flags to enable "now" binding in the current selected linker. |
64 |
kevquinn |
1.92 |
# |
65 |
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################ DEPRECATED functions ################ |
66 |
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# The following are still present to avoid breaking existing |
67 |
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# code more than necessary; however they are deprecated. Please |
68 |
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# use gcc-specs-* from toolchain-funcs.eclass instead, if you |
69 |
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# need to know which hardened techs are active in the compiler. |
70 |
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# See bug #100974 |
71 |
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# |
72 |
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#### has_hardened #### |
73 |
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# Returns true if the compiler has 'Hardened' in its version string, |
74 |
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# (note; switched-spec vanilla compilers satisfy this condition) or |
75 |
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# the specs file name contains 'hardened'. |
76 |
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# |
77 |
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#### has_pie #### |
78 |
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# Returns true if the compiler by default or with current CFLAGS |
79 |
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# builds position-independent code. |
80 |
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# |
81 |
solar |
1.86 |
#### has_pic #### |
82 |
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# Returns true if the compiler by default or with current CFLAGS |
83 |
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# builds position-independent code. |
84 |
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# |
85 |
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#### has_ssp_all #### |
86 |
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# Returns true if the compiler by default or with current CFLAGS |
87 |
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# generates stack smash protections for all functions |
88 |
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# |
89 |
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#### has_ssp #### |
90 |
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# Returns true if the compiler by default or with current CFLAGS |
91 |
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# generates stack smash protections for most vulnerable functions |
92 |
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# |
93 |
verwilst |
1.3 |
|
94 |
azarah |
1.17 |
# C[XX]FLAGS that we allow in strip-flags |
95 |
vapier |
1.36 |
setup-allowed-flags() { |
96 |
vapier |
1.84 |
if [[ -z ${ALLOWED_FLAGS} ]] ; then |
97 |
vapier |
1.76 |
export ALLOWED_FLAGS="-pipe" |
98 |
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export ALLOWED_FLAGS="${ALLOWED_FLAGS} -O -O0 -O1 -O2 -mcpu -march -mtune" |
99 |
vapier |
1.87 |
export ALLOWED_FLAGS="${ALLOWED_FLAGS} -fstack-protector -fstack-protector-all" |
100 |
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export ALLOWED_FLAGS="${ALLOWED_FLAGS} -fbounds-checking -fno-bounds-checking" |
101 |
vapier |
1.76 |
export ALLOWED_FLAGS="${ALLOWED_FLAGS} -fno-pie -fno-unit-at-a-time" |
102 |
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export ALLOWED_FLAGS="${ALLOWED_FLAGS} -g -g0 -g1 -g2 -g3 -ggdb -ggdb0 -ggdb1 -ggdb2 -ggdb3" |
103 |
vapier |
1.44 |
fi |
104 |
vapier |
1.65 |
# allow a bunch of flags that negate features / control ABI |
105 |
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ALLOWED_FLAGS="${ALLOWED_FLAGS} -fno-stack-protector -fno-stack-protector-all" |
106 |
vapier |
1.87 |
ALLOWED_FLAGS="${ALLOWED_FLAGS} -mregparm -mno-app-regs -mapp-regs \ |
107 |
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-mno-mmx -mno-sse -mno-sse2 -mno-sse3 -mno-3dnow \ |
108 |
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-mips1 -mips2 -mips3 -mips4 -mips32 -mips64 -mips16 \ |
109 |
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-msoft-float -mno-soft-float -mhard-float -mno-hard-float -mfpu \ |
110 |
agriffis |
1.90 |
-mieee -mieee-with-inexact \ |
111 |
vapier |
1.91 |
-mtls-direct-seg-refs -mno-tls-direct-seg-refs \ |
112 |
vapier |
1.87 |
-mflat -mno-flat -mno-faster-structs -mfaster-structs \ |
113 |
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-m32 -m64 -mabi -mlittle-endian -mbig-endian -EL -EB -fPIC \ |
114 |
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-mlive-g0 -mcmodel -mstack-bias -mno-stack-bias" |
115 |
vapier |
1.36 |
|
116 |
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# C[XX]FLAGS that we are think is ok, but needs testing |
117 |
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# NOTE: currently -Os have issues with gcc3 and K6* arch's |
118 |
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export UNSTABLE_FLAGS="-Os -O3 -freorder-blocks -fprefetch-loop-arrays" |
119 |
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return 0 |
120 |
aliz |
1.24 |
} |
121 |
verwilst |
1.13 |
|
122 |
vapier |
1.18 |
filter-flags() { |
123 |
mr_bones_ |
1.83 |
local x f fset |
124 |
agriffis |
1.61 |
declare -a new_CFLAGS new_CXXFLAGS |
125 |
agriffis |
1.58 |
|
126 |
vapier |
1.36 |
for x in "$@" ; do |
127 |
solar |
1.27 |
case "${x}" in |
128 |
solar |
1.82 |
-fPIC|-fpic|-fPIE|-fpie|-pie) |
129 |
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append-flags `test_flag -fno-pie`;; |
130 |
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-fstack-protector|-fstack-protector-all) |
131 |
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fstack-flags;; |
132 |
solar |
1.27 |
esac |
133 |
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done |
134 |
vapier |
1.36 |
|
135 |
agriffis |
1.61 |
for fset in CFLAGS CXXFLAGS; do |
136 |
agriffis |
1.64 |
# Looping over the flags instead of using a global |
137 |
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# substitution ensures that we're working with flag atoms. |
138 |
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# Otherwise globs like -O* have the potential to wipe out the |
139 |
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# list of flags. |
140 |
agriffis |
1.61 |
for f in ${!fset}; do |
141 |
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for x in "$@"; do |
142 |
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# Note this should work with globs like -O* |
143 |
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[[ ${f} == ${x} ]] && continue 2 |
144 |
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done |
145 |
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eval new_${fset}\[\${\#new_${fset}\[@]}]=\${f} |
146 |
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done |
147 |
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eval export ${fset}=\${new_${fset}\[*]} |
148 |
verwilst |
1.1 |
done |
149 |
agriffis |
1.61 |
|
150 |
vapier |
1.36 |
return 0 |
151 |
verwilst |
1.2 |
} |
152 |
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|
153 |
vapier |
1.40 |
filter-lfs-flags() { |
154 |
vapier |
1.93 |
[[ -n $@ ]] && die "filter-lfs-flags takes no arguments" |
155 |
vapier |
1.40 |
filter-flags -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE |
156 |
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} |
157 |
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158 |
vapier |
1.48 |
append-lfs-flags() { |
159 |
vapier |
1.93 |
[[ -n $@ ]] && die "append-lfs-flags takes no arguments" |
160 |
vapier |
1.48 |
append-flags -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE |
161 |
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} |
162 |
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163 |
vapier |
1.18 |
append-flags() { |
164 |
solar |
1.82 |
[[ -z $* ]] && return 0 |
165 |
agriffis |
1.58 |
export CFLAGS="${CFLAGS} $*" |
166 |
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export CXXFLAGS="${CXXFLAGS} $*" |
167 |
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[ -n "`is-flag -fno-stack-protector`" -o \ |
168 |
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-n "`is-flag -fno-stack-protector-all`" ] && fstack-flags |
169 |
vapier |
1.28 |
return 0 |
170 |
verwilst |
1.1 |
} |
171 |
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|
172 |
vapier |
1.18 |
replace-flags() { |
173 |
vapier |
1.93 |
[[ $# != 2 ]] \ |
174 |
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&& echo && eerror "Usage: replace-flags <old flag> <new flag>" \ |
175 |
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&& die "replace-flags takes 2 arguments, not $#" |
176 |
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|
177 |
mr_bones_ |
1.83 |
local f fset |
178 |
agriffis |
1.64 |
declare -a new_CFLAGS new_CXXFLAGS |
179 |
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|
180 |
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for fset in CFLAGS CXXFLAGS; do |
181 |
|
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# Looping over the flags instead of using a global |
182 |
|
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# substitution ensures that we're working with flag atoms. |
183 |
|
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# Otherwise globs like -O* have the potential to wipe out the |
184 |
|
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# list of flags. |
185 |
|
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for f in ${!fset}; do |
186 |
|
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# Note this should work with globs like -O* |
187 |
|
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[[ ${f} == ${1} ]] && f=${2} |
188 |
|
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eval new_${fset}\[\${\#new_${fset}\[@]}]=\${f} |
189 |
|
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done |
190 |
|
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eval export ${fset}=\${new_${fset}\[*]} |
191 |
|
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done |
192 |
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|
193 |
vapier |
1.28 |
return 0 |
194 |
danarmak |
1.7 |
} |
195 |
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|
196 |
vapier |
1.37 |
replace-cpu-flags() { |
197 |
vapier |
1.70 |
local newcpu="$#" ; newcpu="${!newcpu}" |
198 |
|
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while [ $# -gt 1 ] ; do |
199 |
agriffis |
1.64 |
# quote to make sure that no globbing is done (particularly on |
200 |
|
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# ${oldcpu} prior to calling replace-flags |
201 |
vapier |
1.70 |
replace-flags "-march=${1}" "-march=${newcpu}" |
202 |
|
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replace-flags "-mcpu=${1}" "-mcpu=${newcpu}" |
203 |
|
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replace-flags "-mtune=${1}" "-mtune=${newcpu}" |
204 |
|
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shift |
205 |
vapier |
1.37 |
done |
206 |
|
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return 0 |
207 |
|
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} |
208 |
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|
209 |
danarmak |
1.7 |
is-flag() { |
210 |
agriffis |
1.58 |
local x |
211 |
|
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|
212 |
vapier |
1.18 |
for x in ${CFLAGS} ${CXXFLAGS} ; do |
213 |
agriffis |
1.67 |
# Note this should work with globs like -mcpu=ultrasparc* |
214 |
|
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if [[ ${x} == ${1} ]]; then |
215 |
azarah |
1.8 |
echo true |
216 |
vapier |
1.18 |
return 0 |
217 |
|
|
fi |
218 |
danarmak |
1.7 |
done |
219 |
vapier |
1.18 |
return 1 |
220 |
verwilst |
1.1 |
} |
221 |
azarah |
1.8 |
|
222 |
vapier |
1.36 |
filter-mfpmath() { |
223 |
agriffis |
1.58 |
local orig_mfpmath new_math prune_math |
224 |
|
|
|
225 |
vapier |
1.36 |
# save the original -mfpmath flag |
226 |
agriffis |
1.58 |
orig_mfpmath="`get-flag -mfpmath`" |
227 |
vapier |
1.36 |
# get the value of the current -mfpmath flag |
228 |
agriffis |
1.58 |
new_math=" `get-flag mfpmath | tr , ' '` " |
229 |
vapier |
1.36 |
# figure out which math values are to be removed |
230 |
agriffis |
1.58 |
prune_math="" |
231 |
vapier |
1.36 |
for prune_math in "$@" ; do |
232 |
|
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new_math="${new_math/ ${prune_math} / }" |
233 |
|
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done |
234 |
|
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new_math="`echo ${new_math:1:${#new_math}-2} | tr ' ' ,`" |
235 |
|
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|
236 |
|
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if [ -z "${new_math}" ] ; then |
237 |
|
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# if we're removing all user specified math values are |
238 |
|
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# slated for removal, then we just filter the flag |
239 |
|
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filter-flags ${orig_mfpmath} |
240 |
|
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else |
241 |
|
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# if we only want to filter some of the user specified |
242 |
|
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# math values, then we replace the current flag |
243 |
|
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replace-flags ${orig_mfpmath} -mfpmath=${new_math} |
244 |
|
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fi |
245 |
|
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return 0 |
246 |
|
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} |
247 |
|
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|
248 |
azarah |
1.8 |
strip-flags() { |
249 |
agriffis |
1.58 |
local x y flag NEW_CFLAGS NEW_CXXFLAGS |
250 |
|
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|
251 |
vapier |
1.36 |
setup-allowed-flags |
252 |
|
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|
253 |
azarah |
1.8 |
local NEW_CFLAGS="" |
254 |
|
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local NEW_CXXFLAGS="" |
255 |
|
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|
256 |
azarah |
1.17 |
# Allow unstable C[XX]FLAGS if we are using unstable profile ... |
257 |
vapier |
1.84 |
if has ~$(tc-arch) ${ACCEPT_KEYWORDS} ; then |
258 |
azarah |
1.17 |
ALLOWED_FLAGS="${ALLOWED_FLAGS} ${UNSTABLE_FLAGS}" |
259 |
|
|
fi |
260 |
|
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|
261 |
agriffis |
1.58 |
set -f # disable pathname expansion |
262 |
azarah |
1.8 |
|
263 |
agriffis |
1.58 |
for x in ${CFLAGS}; do |
264 |
|
|
for y in ${ALLOWED_FLAGS}; do |
265 |
lostlogic |
1.14 |
flag=${x%%=*} |
266 |
vapier |
1.65 |
if [ "${flag%%${y}}" = "" ] ; then |
267 |
lostlogic |
1.14 |
NEW_CFLAGS="${NEW_CFLAGS} ${x}" |
268 |
|
|
break |
269 |
azarah |
1.8 |
fi |
270 |
|
|
done |
271 |
|
|
done |
272 |
|
|
|
273 |
agriffis |
1.58 |
for x in ${CXXFLAGS}; do |
274 |
|
|
for y in ${ALLOWED_FLAGS}; do |
275 |
lostlogic |
1.14 |
flag=${x%%=*} |
276 |
vapier |
1.65 |
if [ "${flag%%${y}}" = "" ] ; then |
277 |
lostlogic |
1.14 |
NEW_CXXFLAGS="${NEW_CXXFLAGS} ${x}" |
278 |
|
|
break |
279 |
azarah |
1.8 |
fi |
280 |
|
|
done |
281 |
|
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done |
282 |
azarah |
1.30 |
|
283 |
|
|
# In case we filtered out all optimization flags fallback to -O2 |
284 |
|
|
if [ "${CFLAGS/-O}" != "${CFLAGS}" -a "${NEW_CFLAGS/-O}" = "${NEW_CFLAGS}" ]; then |
285 |
|
|
NEW_CFLAGS="${NEW_CFLAGS} -O2" |
286 |
|
|
fi |
287 |
|
|
if [ "${CXXFLAGS/-O}" != "${CXXFLAGS}" -a "${NEW_CXXFLAGS/-O}" = "${NEW_CXXFLAGS}" ]; then |
288 |
|
|
NEW_CXXFLAGS="${NEW_CXXFLAGS} -O2" |
289 |
|
|
fi |
290 |
azarah |
1.8 |
|
291 |
agriffis |
1.58 |
set +f # re-enable pathname expansion |
292 |
azarah |
1.8 |
|
293 |
|
|
export CFLAGS="${NEW_CFLAGS}" |
294 |
|
|
export CXXFLAGS="${NEW_CXXFLAGS}" |
295 |
vapier |
1.36 |
return 0 |
296 |
puggy |
1.29 |
} |
297 |
|
|
|
298 |
azarah |
1.96 |
test-flag-PROG() { |
299 |
|
|
local comp=$1 |
300 |
|
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local flags="$2" |
301 |
|
|
|
302 |
|
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[[ -z ${comp} || -z ${flags} ]] && \ |
303 |
|
|
return 1 |
304 |
|
|
|
305 |
|
|
local PROG=$(tc-get${comp}) |
306 |
|
|
${PROG} ${flags} -S -o /dev/null -xc /dev/null \ |
307 |
|
|
> /dev/null 2>&1 |
308 |
|
|
} |
309 |
|
|
|
310 |
|
|
# Returns true if C compiler support given flag |
311 |
|
|
test-flag-CC() { test-flag-PROG "CC" "$1"; } |
312 |
|
|
|
313 |
|
|
# Returns true if C++ compiler support given flag |
314 |
|
|
test-flag-CXX() { test-flag-PROG "CXX" "$1"; } |
315 |
|
|
|
316 |
azarah |
1.99 |
test-flags-PROG() { |
317 |
|
|
local comp=$1 |
318 |
|
|
local flags |
319 |
azarah |
1.96 |
local x |
320 |
azarah |
1.99 |
|
321 |
|
|
shift |
322 |
|
|
|
323 |
|
|
[[ -z ${comp} ]] && \ |
324 |
|
|
return 1 |
325 |
swegener |
1.101 |
|
326 |
azarah |
1.96 |
for x in "$@" ; do |
327 |
azarah |
1.99 |
test-flag-${comp} "${x}" && flags="${flags} ${x}" |
328 |
azarah |
1.96 |
done |
329 |
|
|
|
330 |
azarah |
1.99 |
echo "${flags}" |
331 |
azarah |
1.96 |
|
332 |
azarah |
1.99 |
# Just bail if we dont have any flags |
333 |
|
|
[[ -n ${flags} ]] |
334 |
azarah |
1.96 |
} |
335 |
|
|
|
336 |
azarah |
1.99 |
# Returns (echo's) the given flags supported by the C compiler |
337 |
|
|
test-flags-CC() { test-flags-PROG "CC" "$@"; } |
338 |
|
|
|
339 |
|
|
# Returns (echo's) the given flags supported by the C++ compiler |
340 |
|
|
test-flags-CXX() { test-flags-PROG "CXX" "$@"; } |
341 |
|
|
|
342 |
|
|
# Short-hand that should hopefully work for both C and C++ compiler, but |
343 |
azarah |
1.100 |
# its really only present due to the append-flags() abomination. |
344 |
azarah |
1.99 |
test-flags() { test-flags-CC "$@"; } |
345 |
|
|
|
346 |
kevquinn |
1.104 |
# Deprecated, use test-flags() |
347 |
vapier |
1.36 |
test_flag() { |
348 |
kevquinn |
1.104 |
ewarn "test_flag: deprecated, please use test-flags()!" >&2 |
349 |
azarah |
1.96 |
|
350 |
azarah |
1.99 |
test-flags-CC "$@" |
351 |
puggy |
1.29 |
} |
352 |
|
|
|
353 |
agriffis |
1.58 |
test_version_info() { |
354 |
vapier |
1.75 |
if [[ $($(tc-getCC) --version 2>&1) == *$1* ]]; then |
355 |
agriffis |
1.58 |
return 0 |
356 |
|
|
else |
357 |
|
|
return 1 |
358 |
|
|
fi |
359 |
|
|
} |
360 |
|
|
|
361 |
puggy |
1.29 |
strip-unsupported-flags() { |
362 |
vapier |
1.95 |
local x NEW_CFLAGS NEW_CXXFLAGS |
363 |
agriffis |
1.58 |
|
364 |
vapier |
1.36 |
for x in ${CFLAGS} ; do |
365 |
azarah |
1.96 |
NEW_CFLAGS="${NEW_CFLAGS} $(test-flags ${x})" |
366 |
puggy |
1.29 |
done |
367 |
vapier |
1.36 |
for x in ${CXXFLAGS} ; do |
368 |
azarah |
1.96 |
NEW_CXXFLAGS="${NEW_CXXFLAGS} $(test-flags ${x})" |
369 |
puggy |
1.29 |
done |
370 |
|
|
|
371 |
vapier |
1.95 |
export CFLAGS=${NEW_CFLAGS} |
372 |
|
|
export CXXFLAGS=${NEW_CXXFLAGS} |
373 |
azarah |
1.8 |
} |
374 |
|
|
|
375 |
vapier |
1.10 |
get-flag() { |
376 |
agriffis |
1.58 |
local f findflag="$1" |
377 |
|
|
|
378 |
vapier |
1.36 |
# this code looks a little flaky but seems to work for |
379 |
|
|
# everything we want ... |
380 |
|
|
# for example, if CFLAGS="-march=i686": |
381 |
agriffis |
1.58 |
# `get-flag -march` == "-march=i686" |
382 |
|
|
# `get-flag march` == "i686" |
383 |
vapier |
1.10 |
for f in ${CFLAGS} ${CXXFLAGS} ; do |
384 |
|
|
if [ "${f/${findflag}}" != "${f}" ] ; then |
385 |
agriffis |
1.58 |
printf "%s\n" "${f/-${findflag}=}" |
386 |
vapier |
1.28 |
return 0 |
387 |
vapier |
1.10 |
fi |
388 |
|
|
done |
389 |
vapier |
1.28 |
return 1 |
390 |
joker |
1.16 |
} |
391 |
|
|
|
392 |
kevquinn |
1.92 |
# DEPRECATED - use gcc-specs-relro or gcc-specs-now from toolchain-funcs |
393 |
solar |
1.53 |
has_hardened() { |
394 |
kevquinn |
1.104 |
ewarn "has_hardened: deprecated, please use gcc-specs-{relro,now}()!" >&2 |
395 |
swegener |
1.101 |
|
396 |
lv |
1.69 |
test_version_info Hardened && return 0 |
397 |
azarah |
1.96 |
# The specs file wont exist unless gcc has GCC_SPECS support |
398 |
|
|
[[ -f ${GCC_SPECS} && ${GCC_SPECS} != ${GCC_SPECS/hardened/} ]] |
399 |
solar |
1.53 |
} |
400 |
|
|
|
401 |
kevquinn |
1.92 |
# DEPRECATED - use gcc-specs-pie from toolchain-funcs |
402 |
solar |
1.81 |
# indicate whether PIC is set |
403 |
tseng |
1.42 |
has_pic() { |
404 |
kevquinn |
1.104 |
ewarn "has_pic: deprecated, please use gcc-specs-pie()!" >&2 |
405 |
swegener |
1.101 |
|
406 |
azarah |
1.96 |
[[ ${CFLAGS/-fPIC} != ${CFLAGS} || \ |
407 |
|
|
${CFLAGS/-fpic} != ${CFLAGS} || \ |
408 |
|
|
-n $(echo | $(tc-getCC) ${CFLAGS} -E -dM - | grep __PIC__) ]] |
409 |
tseng |
1.42 |
} |
410 |
|
|
|
411 |
kevquinn |
1.92 |
# DEPRECATED - use gcc-specs-pie from toolchain-funcs |
412 |
solar |
1.81 |
# indicate whether PIE is set |
413 |
mr_bones_ |
1.83 |
has_pie() { |
414 |
kevquinn |
1.104 |
ewarn "has_pie: deprecated, please use gcc-specs-pie()!" >&2 |
415 |
swegener |
1.101 |
|
416 |
azarah |
1.96 |
[[ ${CFLAGS/-fPIE} != ${CFLAGS} || \ |
417 |
|
|
${CFLAGS/-fpie} != ${CFLAGS} || \ |
418 |
|
|
-n $(echo | $(tc-getCC) ${CFLAGS} -E -dM - | grep __PIE__) || \ |
419 |
|
|
-n $(echo | $(tc-getCC) ${CFLAGS} -E -dM - | grep __PIC__) ]] |
420 |
solar |
1.81 |
# test PIC while waiting for specs to be updated to generate __PIE__ |
421 |
tseng |
1.42 |
} |
422 |
mr_bones_ |
1.83 |
|
423 |
kevquinn |
1.92 |
# DEPRECATED - use gcc-specs-ssp from toolchain-funcs |
424 |
solar |
1.86 |
# indicate whether code for SSP is being generated for all functions |
425 |
|
|
has_ssp_all() { |
426 |
kevquinn |
1.104 |
ewarn "has_ssp_all: deprecated, please use gcc-specs-ssp()!" >&2 |
427 |
swegener |
1.101 |
|
428 |
solar |
1.86 |
# note; this matches only -fstack-protector-all |
429 |
azarah |
1.96 |
[[ ${CFLAGS/-fstack-protector-all} != ${CFLAGS} || \ |
430 |
|
|
-n $(echo | $(tc-getCC) ${CFLAGS} -E -dM - | grep __SSP_ALL__) ]] || \ |
431 |
|
|
gcc-specs-ssp |
432 |
solar |
1.86 |
} |
433 |
|
|
|
434 |
kevquinn |
1.92 |
# DEPRECATED - use gcc-specs-ssp from toolchain-funcs |
435 |
solar |
1.81 |
# indicate whether code for SSP is being generated |
436 |
tseng |
1.42 |
has_ssp() { |
437 |
kevquinn |
1.104 |
ewarn "has_ssp: deprecated, please use gcc-specs-ssp()!" >&2 |
438 |
swegener |
1.101 |
|
439 |
solar |
1.81 |
# note; this matches both -fstack-protector and -fstack-protector-all |
440 |
azarah |
1.96 |
[[ ${CFLAGS/-fstack-protector} != ${CFLAGS} || \ |
441 |
|
|
-n $(echo | $(tc-getCC) ${CFLAGS} -E -dM - | grep __SSP__) ]] || \ |
442 |
|
|
gcc-specs-ssp |
443 |
tseng |
1.42 |
} |
444 |
|
|
|
445 |
lv |
1.56 |
has_m64() { |
446 |
lv |
1.62 |
# this doesnt test if the flag is accepted, it tests if the flag |
447 |
|
|
# actually -WORKS-. non-multilib gcc will take both -m32 and -m64! |
448 |
|
|
# please dont replace this function with test_flag in some future |
449 |
|
|
# clean-up! |
450 |
swegener |
1.101 |
|
451 |
vapier |
1.72 |
local temp="$(emktemp)" |
452 |
azarah |
1.96 |
echo "int main() { return(0); }" > "${temp}".c |
453 |
kugelfang |
1.74 |
MY_CC=$(tc-getCC) |
454 |
azarah |
1.96 |
${MY_CC/ .*/} -m64 -o "$(emktemp)" "${temp}".c > /dev/null 2>&1 |
455 |
vapier |
1.72 |
local ret=$? |
456 |
azarah |
1.96 |
rm -f "${temp}".c |
457 |
|
|
[[ ${ret} != 1 ]] && return 0 |
458 |
lv |
1.62 |
return 1 |
459 |
lv |
1.56 |
} |
460 |
|
|
|
461 |
|
|
has_m32() { |
462 |
lv |
1.62 |
# this doesnt test if the flag is accepted, it tests if the flag |
463 |
|
|
# actually -WORKS-. non-multilib gcc will take both -m32 and -m64! |
464 |
|
|
# please dont replace this function with test_flag in some future |
465 |
|
|
# clean-up! |
466 |
eradicator |
1.80 |
|
467 |
|
|
[ "$(tc-arch)" = "amd64" ] && has_multilib_profile && return 0 |
468 |
|
|
|
469 |
vapier |
1.95 |
local temp=$(emktemp) |
470 |
|
|
echo "int main() { return(0); }" > "${temp}".c |
471 |
kugelfang |
1.74 |
MY_CC=$(tc-getCC) |
472 |
vapier |
1.95 |
${MY_CC/ .*/} -m32 -o "$(emktemp)" "${temp}".c > /dev/null 2>&1 |
473 |
vapier |
1.72 |
local ret=$? |
474 |
vapier |
1.95 |
rm -f "${temp}".c |
475 |
azarah |
1.96 |
[[ ${ret} != 1 ]] && return 0 |
476 |
lv |
1.62 |
return 1 |
477 |
lv |
1.56 |
} |
478 |
|
|
|
479 |
vapier |
1.18 |
replace-sparc64-flags() { |
480 |
fmccor |
1.98 |
local SPARC64_CPUS="ultrasparc3 ultrasparc v9" |
481 |
joker |
1.16 |
|
482 |
mr_bones_ |
1.83 |
if [ "${CFLAGS/mtune}" != "${CFLAGS}" ]; then |
483 |
agriffis |
1.58 |
for x in ${SPARC64_CPUS}; do |
484 |
joker |
1.16 |
CFLAGS="${CFLAGS/-mcpu=${x}/-mcpu=v8}" |
485 |
|
|
done |
486 |
mr_bones_ |
1.83 |
else |
487 |
agriffis |
1.58 |
for x in ${SPARC64_CPUS}; do |
488 |
joker |
1.16 |
CFLAGS="${CFLAGS/-mcpu=${x}/-mcpu=v8 -mtune=${x}}" |
489 |
|
|
done |
490 |
|
|
fi |
491 |
mr_bones_ |
1.83 |
|
492 |
|
|
if [ "${CXXFLAGS/mtune}" != "${CXXFLAGS}" ]; then |
493 |
agriffis |
1.58 |
for x in ${SPARC64_CPUS}; do |
494 |
joker |
1.16 |
CXXFLAGS="${CXXFLAGS/-mcpu=${x}/-mcpu=v8}" |
495 |
|
|
done |
496 |
|
|
else |
497 |
agriffis |
1.58 |
for x in ${SPARC64_CPUS}; do |
498 |
joker |
1.16 |
CXXFLAGS="${CXXFLAGS/-mcpu=${x}/-mcpu=v8 -mtune=${x}}" |
499 |
|
|
done |
500 |
|
|
fi |
501 |
vapier |
1.59 |
|
502 |
|
|
export CFLAGS CXXFLAGS |
503 |
solar |
1.27 |
} |
504 |
|
|
|
505 |
|
|
append-ldflags() { |
506 |
vapier |
1.59 |
export LDFLAGS="${LDFLAGS} $*" |
507 |
vapier |
1.28 |
return 0 |
508 |
solar |
1.27 |
} |
509 |
|
|
|
510 |
solar |
1.41 |
filter-ldflags() { |
511 |
agriffis |
1.58 |
local x |
512 |
|
|
|
513 |
solar |
1.41 |
# we do this fancy spacing stuff so as to not filter |
514 |
|
|
# out part of a flag ... we want flag atoms ! :D |
515 |
|
|
LDFLAGS=" ${LDFLAGS} " |
516 |
|
|
for x in "$@" ; do |
517 |
vapier |
1.84 |
LDFLAGS=${LDFLAGS// ${x} / } |
518 |
solar |
1.41 |
done |
519 |
vapier |
1.84 |
[[ -z ${LDFLAGS// } ]] \ |
520 |
|
|
&& LDFLAGS="" \ |
521 |
|
|
|| LDFLAGS=${LDFLAGS:1:${#LDFLAGS}-2} |
522 |
vapier |
1.59 |
export LDFLAGS |
523 |
solar |
1.41 |
return 0 |
524 |
|
|
} |
525 |
|
|
|
526 |
vapier |
1.102 |
# Turn C style ldflags (-Wl,-foo) into straight ldflags |
527 |
|
|
raw-ldflags() { |
528 |
|
|
local x input="$@" |
529 |
|
|
[[ -z ${input} ]] && input=${LDFLAGS} |
530 |
|
|
set -- |
531 |
|
|
for x in ${input} ; do |
532 |
vapier |
1.103 |
x=${x#-Wl,} |
533 |
|
|
set -- "$@" ${x//,/ } |
534 |
vapier |
1.102 |
done |
535 |
|
|
echo "$@" |
536 |
|
|
} |
537 |
|
|
|
538 |
solar |
1.27 |
fstack-flags() { |
539 |
kevquinn |
1.92 |
if gcc-specs-ssp; then |
540 |
mr_bones_ |
1.83 |
[ -z "`is-flag -fno-stack-protector`" ] && |
541 |
agriffis |
1.58 |
export CFLAGS="${CFLAGS} `test_flag -fno-stack-protector`" |
542 |
solar |
1.35 |
fi |
543 |
agriffis |
1.58 |
return 0 |
544 |
vapier |
1.10 |
} |
545 |
vapier |
1.73 |
|
546 |
|
|
# This is thanks to great work from Paul de Vrieze <gentoo-user@devrieze.net>, |
547 |
|
|
# bug #9016. Also thanks to Jukka Salmi <salmi@gmx.net> (bug #13907) for more |
548 |
|
|
# fixes. |
549 |
|
|
# |
550 |
|
|
# Export CFLAGS and CXXFLAGS that are compadible with gcc-2.95.3 |
551 |
|
|
gcc2-flags() { |
552 |
vapier |
1.85 |
if [[ $(tc-arch) == "x86" || $(tc-arch) == "amd64" ]] ; then |
553 |
|
|
CFLAGS=${CFLAGS//-mtune=/-mcpu=} |
554 |
|
|
CXXFLAGS=${CXXFLAGS//-mtune=/-mcpu=} |
555 |
vapier |
1.73 |
fi |
556 |
|
|
|
557 |
vapier |
1.85 |
replace-cpu-flags k6-{2,3} k6 |
558 |
|
|
replace-cpu-flags athlon{,-{tbird,4,xp,mp}} i686 |
559 |
|
|
|
560 |
|
|
replace-cpu-flags pentium-mmx i586 |
561 |
|
|
replace-cpu-flags pentium{2,3,4} i686 |
562 |
|
|
|
563 |
|
|
replace-cpu-flags ev6{7,8} ev6 |
564 |
|
|
|
565 |
vapier |
1.73 |
export CFLAGS CXXFLAGS |
566 |
|
|
} |
567 |
flameeyes |
1.94 |
|
568 |
|
|
# Gets the flags needed for "NOW" binding |
569 |
|
|
bindnow-flags() { |
570 |
|
|
case $($(tc-getLD) -v 2>&1 </dev/null) in |
571 |
|
|
*GNU* | *'with BFD'*) # GNU ld |
572 |
|
|
echo "-Wl,-z,now" ;; |
573 |
|
|
*Apple*) # Darwin ld |
574 |
|
|
echo "-bind_at_load" ;; |
575 |
|
|
*) |
576 |
|
|
# Some linkers just recognize -V instead of -v |
577 |
|
|
case $($(tc-getLD) -V 2>&1 </dev/null) in |
578 |
|
|
*Solaris*) # Solaris accept almost the same GNU options |
579 |
|
|
echo "-Wl,-z,now" ;; |
580 |
|
|
esac |
581 |
|
|
;; |
582 |
|
|
esac |
583 |
|
|
} |