1 |
dirtyepic |
1.157 |
# Copyright 1999-2011 Gentoo Foundation |
2 |
verwilst |
1.1 |
# Distributed under the terms of the GNU General Public License v2 |
3 |
vapier |
1.170 |
# $Header: /var/cvsroot/gentoo-x86/eclass/flag-o-matic.eclass,v 1.169 2012/02/26 12:09:44 blueness Exp $ |
4 |
vapier |
1.121 |
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5 |
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# @ECLASS: flag-o-matic.eclass |
6 |
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# @MAINTAINER: |
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# toolchain@gentoo.org |
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# @BLURB: common functions to manipulate and query toolchain flags |
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# @DESCRIPTION: |
10 |
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# This eclass contains a suite of functions to help developers sanely |
11 |
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# and safely manage toolchain flags in their builds. |
12 |
vapier |
1.63 |
|
13 |
vapier |
1.160 |
if [[ ${___ECLASS_ONCE_FLAG_O_MATIC} != "recur -_+^+_- spank" ]] ; then |
14 |
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___ECLASS_ONCE_FLAG_O_MATIC="recur -_+^+_- spank" |
15 |
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|
16 |
eradicator |
1.80 |
inherit eutils toolchain-funcs multilib |
17 |
vapier |
1.72 |
|
18 |
vapier |
1.167 |
# Return all the flag variables that our high level funcs operate on. |
19 |
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all-flag-vars() { |
20 |
blueness |
1.169 |
echo {C,CPP,CXX,CCAS,F,FC,LD}FLAGS |
21 |
vapier |
1.167 |
} |
22 |
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|
23 |
dberkholz |
1.124 |
# {C,CXX,F,FC}FLAGS that we allow in strip-flags |
24 |
vapier |
1.117 |
# Note: shell globs and character lists are allowed |
25 |
vapier |
1.36 |
setup-allowed-flags() { |
26 |
dirtyepic |
1.163 |
ALLOWED_FLAGS="-pipe" |
27 |
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ALLOWED_FLAGS+=" -O -O1 -O2 -Os -mcpu -march -mtune" |
28 |
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ALLOWED_FLAGS+=" -fstack-protector -fstack-protector-all" |
29 |
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ALLOWED_FLAGS+=" -fbounds-checking -fno-strict-overflow" |
30 |
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ALLOWED_FLAGS+=" -fno-PIE -fno-pie -fno-unit-at-a-time" |
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ALLOWED_FLAGS+=" -g -g[0-9] -ggdb -ggdb[0-9] -gstabs -gstabs+" |
32 |
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ALLOWED_FLAGS+=" -fno-ident -fpermissive" |
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ALLOWED_FLAGS+=" -W* -w" |
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|
35 |
vapier |
1.65 |
# allow a bunch of flags that negate features / control ABI |
36 |
dirtyepic |
1.163 |
ALLOWED_FLAGS+=" -fno-stack-protector -fno-stack-protector-all \ |
37 |
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-fno-strict-aliasing -fno-bounds-checking -fstrict-overflow \ |
38 |
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-fno-omit-frame-pointer" |
39 |
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ALLOWED_FLAGS+=" -mregparm -mno-app-regs -mapp-regs -mno-mmx -mno-sse \ |
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-mno-sse2 -mno-sse3 -mno-ssse3 -mno-sse4 -mno-sse4.1 -mno-sse4.2 \ |
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-mno-avx -mno-aes -mno-pclmul -mno-sse4a -mno-3dnow -mno-popcnt \ |
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-mno-abm -mips1 -mips2 -mips3 -mips4 -mips32 -mips64 -mips16 -mplt \ |
43 |
vapier |
1.87 |
-msoft-float -mno-soft-float -mhard-float -mno-hard-float -mfpu \ |
44 |
dirtyepic |
1.149 |
-mieee -mieee-with-inexact -mschedule -mfloat-gprs -mspe -mno-spe \ |
45 |
dirtyepic |
1.163 |
-mtls-direct-seg-refs -mno-tls-direct-seg-refs -mflat -mno-flat \ |
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-mno-faster-structs -mfaster-structs -m32 -m64 -mx32 -mabi \ |
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-mlittle-endian -mbig-endian -EL -EB -fPIC -mlive-g0 -mcmodel \ |
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-mstack-bias -mno-stack-bias -msecure-plt -m*-toc -D* -U*" |
49 |
vapier |
1.135 |
|
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dirtyepic |
1.148 |
# 4.5 |
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dirtyepic |
1.163 |
ALLOWED_FLAGS+=" -mno-fma4 -mno-movbe -mno-xop -mno-lwp" |
52 |
dirtyepic |
1.149 |
# 4.6 |
53 |
dirtyepic |
1.163 |
ALLOWED_FLAGS+=" -mno-fsgsbase -mno-rdrnd -mno-f16c -mno-bmi -mno-tbm" |
54 |
dirtyepic |
1.148 |
|
55 |
dirtyepic |
1.163 |
export ALLOWED_FLAGS |
56 |
vapier |
1.36 |
return 0 |
57 |
aliz |
1.24 |
} |
58 |
verwilst |
1.13 |
|
59 |
kevquinn |
1.105 |
# inverted filters for hardened compiler. This is trying to unpick |
60 |
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# the hardened compiler defaults. |
61 |
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_filter-hardened() { |
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local f |
63 |
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for f in "$@" ; do |
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case "${f}" in |
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# Ideally we should only concern ourselves with PIE flags, |
66 |
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# not -fPIC or -fpic, but too many places filter -fPIC without |
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# thinking about -fPIE. |
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-fPIC|-fpic|-fPIE|-fpie|-Wl,pie|-pie) |
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gcc-specs-pie || continue |
70 |
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is-flagq -nopie || append-flags -nopie;; |
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-fstack-protector) |
72 |
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gcc-specs-ssp || continue |
73 |
gengor |
1.131 |
is-flagq -fno-stack-protector || append-flags $(test-flags -fno-stack-protector);; |
74 |
kevquinn |
1.105 |
-fstack-protector-all) |
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gcc-specs-ssp-to-all || continue |
76 |
gengor |
1.131 |
is-flagq -fno-stack-protector-all || append-flags $(test-flags -fno-stack-protector-all);; |
77 |
gengor |
1.128 |
-fno-strict-overflow) |
78 |
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gcc-specs-nostrict || continue |
79 |
gengor |
1.131 |
is-flagq -fstrict-overflow || append-flags $(test-flags -fstrict-overflow);; |
80 |
solar |
1.27 |
esac |
81 |
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done |
82 |
kevquinn |
1.105 |
} |
83 |
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84 |
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# Remove occurrences of strings from variable given in $1 |
85 |
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# Strings removed are matched as globs, so for example |
86 |
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# '-O*' would remove -O1, -O2 etc. |
87 |
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_filter-var() { |
88 |
vapier |
1.167 |
local f x var=$1 new=() |
89 |
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shift |
90 |
vapier |
1.36 |
|
91 |
vapier |
1.167 |
for f in ${!var} ; do |
92 |
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for x in "$@" ; do |
93 |
kevquinn |
1.105 |
# Note this should work with globs like -O* |
94 |
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[[ ${f} == ${x} ]] && continue 2 |
95 |
agriffis |
1.61 |
done |
96 |
vapier |
1.167 |
new+=( "${f}" ) |
97 |
verwilst |
1.1 |
done |
98 |
vapier |
1.167 |
eval export ${var}=\""${new[*]}"\" |
99 |
kevquinn |
1.105 |
} |
100 |
agriffis |
1.61 |
|
101 |
vapier |
1.121 |
# @FUNCTION: filter-flags |
102 |
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# @USAGE: <flags> |
103 |
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# @DESCRIPTION: |
104 |
blueness |
1.169 |
# Remove particular <flags> from {C,CPP,CXX,CCAS,F,FC,LD}FLAGS. Accepts shell globs. |
105 |
kevquinn |
1.105 |
filter-flags() { |
106 |
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_filter-hardened "$@" |
107 |
vapier |
1.164 |
local v |
108 |
vapier |
1.167 |
for v in $(all-flag-vars) ; do |
109 |
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_filter-var ${v} "$@" |
110 |
vapier |
1.164 |
done |
111 |
vapier |
1.36 |
return 0 |
112 |
verwilst |
1.2 |
} |
113 |
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|
114 |
vapier |
1.121 |
# @FUNCTION: filter-lfs-flags |
115 |
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# @DESCRIPTION: |
116 |
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# Remove flags that enable Large File Support. |
117 |
vapier |
1.40 |
filter-lfs-flags() { |
118 |
vapier |
1.154 |
[[ $# -ne 0 ]] && die "filter-lfs-flags takes no arguments" |
119 |
vapier |
1.153 |
# http://www.gnu.org/s/libc/manual/html_node/Feature-Test-Macros.html |
120 |
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# _LARGEFILE_SOURCE: enable support for new LFS funcs (ftello/etc...) |
121 |
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# _LARGEFILE64_SOURCE: enable support for 64bit variants (off64_t/fseeko64/etc...) |
122 |
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# _FILE_OFFSET_BITS: default to 64bit variants (off_t is defined as off64_t) |
123 |
vapier |
1.40 |
filter-flags -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE |
124 |
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} |
125 |
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126 |
vapier |
1.121 |
# @FUNCTION: append-cppflags |
127 |
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# @USAGE: <flags> |
128 |
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# @DESCRIPTION: |
129 |
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# Add extra <flags> to the current CPPFLAGS. |
130 |
vapier |
1.118 |
append-cppflags() { |
131 |
vapier |
1.158 |
[[ $# -eq 0 ]] && return 0 |
132 |
vapier |
1.118 |
export CPPFLAGS="${CPPFLAGS} $*" |
133 |
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return 0 |
134 |
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} |
135 |
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136 |
vapier |
1.136 |
# @FUNCTION: append-cflags |
137 |
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# @USAGE: <flags> |
138 |
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# @DESCRIPTION: |
139 |
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# Add extra <flags> to the current CFLAGS. |
140 |
mr_bones_ |
1.137 |
append-cflags() { |
141 |
vapier |
1.158 |
[[ $# -eq 0 ]] && return 0 |
142 |
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export CFLAGS=$(test-flags-CC ${CFLAGS} "$@") |
143 |
vapier |
1.136 |
return 0 |
144 |
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} |
145 |
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146 |
gengor |
1.132 |
# @FUNCTION: append-cxxflags |
147 |
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# @USAGE: <flags> |
148 |
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# @DESCRIPTION: |
149 |
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# Add extra <flags> to the current CXXFLAGS. |
150 |
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append-cxxflags() { |
151 |
vapier |
1.158 |
[[ $# -eq 0 ]] && return 0 |
152 |
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export CXXFLAGS=$(test-flags-CXX ${CXXFLAGS} "$@") |
153 |
gengor |
1.132 |
return 0 |
154 |
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} |
155 |
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156 |
dberkholz |
1.124 |
# @FUNCTION: append-fflags |
157 |
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# @USAGE: <flags> |
158 |
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# @DESCRIPTION: |
159 |
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# Add extra <flags> to the current {F,FC}FLAGS. |
160 |
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append-fflags() { |
161 |
vapier |
1.158 |
[[ $# -eq 0 ]] && return 0 |
162 |
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export FFLAGS=$(test-flags-F77 ${FFLAGS} "$@") |
163 |
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export FCFLAGS=$(test-flags-FC ${FCFLAGS} "$@") |
164 |
dberkholz |
1.124 |
return 0 |
165 |
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} |
166 |
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167 |
vapier |
1.121 |
# @FUNCTION: append-lfs-flags |
168 |
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# @DESCRIPTION: |
169 |
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# Add flags that enable Large File Support. |
170 |
vapier |
1.48 |
append-lfs-flags() { |
171 |
vapier |
1.154 |
[[ $# -ne 0 ]] && die "append-lfs-flags takes no arguments" |
172 |
vapier |
1.155 |
# see comments in filter-lfs-flags func for meaning of these |
173 |
vapier |
1.118 |
append-cppflags -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE |
174 |
vapier |
1.48 |
} |
175 |
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|
176 |
vapier |
1.121 |
# @FUNCTION: append-flags |
177 |
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# @USAGE: <flags> |
178 |
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# @DESCRIPTION: |
179 |
dberkholz |
1.124 |
# Add extra <flags> to your current {C,CXX,F,FC}FLAGS. |
180 |
vapier |
1.18 |
append-flags() { |
181 |
vapier |
1.158 |
[[ $# -eq 0 ]] && return 0 |
182 |
vapier |
1.170 |
case " $* " in |
183 |
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*' '-[DIU]*) eqawarn 'please use append-cppflags for preprocessor flags' ;; |
184 |
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*' '-L*) eqawarn 'please use append-ldflags for linker flags' ;; |
185 |
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esac |
186 |
vapier |
1.136 |
append-cflags "$@" |
187 |
vapier |
1.138 |
append-cxxflags "$@" |
188 |
vapier |
1.136 |
append-fflags "$@" |
189 |
vapier |
1.28 |
return 0 |
190 |
verwilst |
1.1 |
} |
191 |
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|
192 |
vapier |
1.121 |
# @FUNCTION: replace-flags |
193 |
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# @USAGE: <old> <new> |
194 |
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# @DESCRIPTION: |
195 |
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# Replace the <old> flag with <new>. Accepts shell globs for <old>. |
196 |
vapier |
1.18 |
replace-flags() { |
197 |
vapier |
1.167 |
[[ $# != 2 ]] && die "Usage: replace-flags <old flag> <new flag>" |
198 |
vapier |
1.93 |
|
199 |
vapier |
1.167 |
local f var new |
200 |
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for var in $(all-flag-vars) ; do |
201 |
agriffis |
1.64 |
# Looping over the flags instead of using a global |
202 |
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# substitution ensures that we're working with flag atoms. |
203 |
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# Otherwise globs like -O* have the potential to wipe out the |
204 |
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# list of flags. |
205 |
vapier |
1.167 |
new=() |
206 |
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for f in ${!var} ; do |
207 |
agriffis |
1.64 |
# Note this should work with globs like -O* |
208 |
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[[ ${f} == ${1} ]] && f=${2} |
209 |
vapier |
1.167 |
new+=( "${f}" ) |
210 |
agriffis |
1.64 |
done |
211 |
vapier |
1.167 |
eval export ${var}=\""${new[*]}"\" |
212 |
agriffis |
1.64 |
done |
213 |
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|
214 |
vapier |
1.28 |
return 0 |
215 |
danarmak |
1.7 |
} |
216 |
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|
217 |
vapier |
1.121 |
# @FUNCTION: replace-cpu-flags |
218 |
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# @USAGE: <old> <new> |
219 |
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# @DESCRIPTION: |
220 |
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# Replace cpu flags (like -march/-mcpu/-mtune) that select the <old> cpu |
221 |
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# with flags that select the <new> cpu. Accepts shell globs for <old>. |
222 |
vapier |
1.37 |
replace-cpu-flags() { |
223 |
vapier |
1.70 |
local newcpu="$#" ; newcpu="${!newcpu}" |
224 |
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while [ $# -gt 1 ] ; do |
225 |
agriffis |
1.64 |
# quote to make sure that no globbing is done (particularly on |
226 |
vapier |
1.113 |
# ${oldcpu}) prior to calling replace-flags |
227 |
vapier |
1.70 |
replace-flags "-march=${1}" "-march=${newcpu}" |
228 |
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replace-flags "-mcpu=${1}" "-mcpu=${newcpu}" |
229 |
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replace-flags "-mtune=${1}" "-mtune=${newcpu}" |
230 |
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shift |
231 |
vapier |
1.37 |
done |
232 |
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return 0 |
233 |
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} |
234 |
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|
235 |
vapier |
1.113 |
_is_flagq() { |
236 |
kevquinn |
1.105 |
local x |
237 |
vapier |
1.113 |
for x in ${!1} ; do |
238 |
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[[ ${x} == $2 ]] && return 0 |
239 |
kevquinn |
1.105 |
done |
240 |
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return 1 |
241 |
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} |
242 |
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243 |
vapier |
1.121 |
# @FUNCTION: is-flagq |
244 |
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# @USAGE: <flag> |
245 |
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# @DESCRIPTION: |
246 |
dberkholz |
1.124 |
# Returns shell true if <flag> is in {C,CXX,F,FC}FLAGS, else returns shell false. Accepts shell globs. |
247 |
vapier |
1.113 |
is-flagq() { |
248 |
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[[ -n $2 ]] && die "Usage: is-flag <flag>" |
249 |
vapier |
1.167 |
|
250 |
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local var |
251 |
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for var in $(all-flag-vars) ; do |
252 |
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_is_flagq ${var} "$1" && return 0 |
253 |
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done |
254 |
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return 1 |
255 |
vapier |
1.113 |
} |
256 |
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|
257 |
vapier |
1.121 |
# @FUNCTION: is-flag |
258 |
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# @USAGE: <flag> |
259 |
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# @DESCRIPTION: |
260 |
dberkholz |
1.124 |
# Echo's "true" if flag is set in {C,CXX,F,FC}FLAGS. Accepts shell globs. |
261 |
danarmak |
1.7 |
is-flag() { |
262 |
vapier |
1.113 |
is-flagq "$@" && echo true |
263 |
kevquinn |
1.105 |
} |
264 |
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|
265 |
vapier |
1.121 |
# @FUNCTION: is-ldflagq |
266 |
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# @USAGE: <flag> |
267 |
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# @DESCRIPTION: |
268 |
|
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# Returns shell true if <flag> is in LDFLAGS, else returns shell false. Accepts shell globs. |
269 |
kevquinn |
1.105 |
is-ldflagq() { |
270 |
vapier |
1.113 |
[[ -n $2 ]] && die "Usage: is-ldflag <flag>" |
271 |
|
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_is_flagq LDFLAGS $1 |
272 |
verwilst |
1.1 |
} |
273 |
azarah |
1.8 |
|
274 |
vapier |
1.121 |
# @FUNCTION: is-ldflag |
275 |
|
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# @USAGE: <flag> |
276 |
|
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# @DESCRIPTION: |
277 |
|
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# Echo's "true" if flag is set in LDFLAGS. Accepts shell globs. |
278 |
kevquinn |
1.105 |
is-ldflag() { |
279 |
vapier |
1.113 |
is-ldflagq "$@" && echo true |
280 |
kevquinn |
1.105 |
} |
281 |
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|
282 |
vapier |
1.121 |
# @FUNCTION: filter-mfpmath |
283 |
|
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# @USAGE: <math types> |
284 |
|
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# @DESCRIPTION: |
285 |
|
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# Remove specified math types from the fpmath flag. For example, if the user |
286 |
|
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# has -mfpmath=sse,386, running `filter-mfpmath sse` will leave the user with |
287 |
|
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# -mfpmath=386. |
288 |
vapier |
1.36 |
filter-mfpmath() { |
289 |
agriffis |
1.58 |
local orig_mfpmath new_math prune_math |
290 |
|
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|
291 |
vapier |
1.36 |
# save the original -mfpmath flag |
292 |
vapier |
1.109 |
orig_mfpmath=$(get-flag -mfpmath) |
293 |
vapier |
1.36 |
# get the value of the current -mfpmath flag |
294 |
vapier |
1.109 |
new_math=$(get-flag mfpmath) |
295 |
|
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new_math=" ${new_math//,/ } " |
296 |
vapier |
1.36 |
# figure out which math values are to be removed |
297 |
agriffis |
1.58 |
prune_math="" |
298 |
vapier |
1.36 |
for prune_math in "$@" ; do |
299 |
vapier |
1.109 |
new_math=${new_math/ ${prune_math} / } |
300 |
vapier |
1.36 |
done |
301 |
vapier |
1.109 |
new_math=$(echo ${new_math}) |
302 |
|
|
new_math=${new_math// /,} |
303 |
vapier |
1.36 |
|
304 |
vapier |
1.109 |
if [[ -z ${new_math} ]] ; then |
305 |
vapier |
1.36 |
# if we're removing all user specified math values are |
306 |
|
|
# slated for removal, then we just filter the flag |
307 |
|
|
filter-flags ${orig_mfpmath} |
308 |
|
|
else |
309 |
|
|
# if we only want to filter some of the user specified |
310 |
|
|
# math values, then we replace the current flag |
311 |
|
|
replace-flags ${orig_mfpmath} -mfpmath=${new_math} |
312 |
|
|
fi |
313 |
|
|
return 0 |
314 |
|
|
} |
315 |
|
|
|
316 |
vapier |
1.121 |
# @FUNCTION: strip-flags |
317 |
|
|
# @DESCRIPTION: |
318 |
|
|
# Strip C[XX]FLAGS of everything except known good/safe flags. |
319 |
azarah |
1.8 |
strip-flags() { |
320 |
vapier |
1.167 |
local x y var |
321 |
agriffis |
1.58 |
|
322 |
vapier |
1.36 |
setup-allowed-flags |
323 |
|
|
|
324 |
agriffis |
1.58 |
set -f # disable pathname expansion |
325 |
azarah |
1.8 |
|
326 |
vapier |
1.167 |
for var in $(all-flag-vars) ; do |
327 |
|
|
local new=() |
328 |
azarah |
1.8 |
|
329 |
vapier |
1.167 |
for x in ${!var} ; do |
330 |
|
|
local flag=${x%%=*} |
331 |
|
|
for y in ${ALLOWED_FLAGS} ; do |
332 |
|
|
if [[ -z ${flag%%${y}} ]] ; then |
333 |
|
|
new+=( "${x}" ) |
334 |
|
|
break |
335 |
|
|
fi |
336 |
|
|
done |
337 |
azarah |
1.8 |
done |
338 |
azarah |
1.30 |
|
339 |
vapier |
1.167 |
# In case we filtered out all optimization flags fallback to -O2 |
340 |
|
|
if _is_flagq ${var} "-O*" && ! _is_flagq new "-O*" ; then |
341 |
|
|
new+=( -O2 ) |
342 |
|
|
fi |
343 |
dberkholz |
1.124 |
|
344 |
vapier |
1.167 |
eval export ${var}=\""${new[*]}"\" |
345 |
dberkholz |
1.124 |
done |
346 |
|
|
|
347 |
agriffis |
1.58 |
set +f # re-enable pathname expansion |
348 |
azarah |
1.8 |
|
349 |
vapier |
1.36 |
return 0 |
350 |
puggy |
1.29 |
} |
351 |
|
|
|
352 |
azarah |
1.96 |
test-flag-PROG() { |
353 |
|
|
local comp=$1 |
354 |
vapier |
1.168 |
local flag=$2 |
355 |
azarah |
1.96 |
|
356 |
vapier |
1.168 |
[[ -z ${comp} || -z ${flag} ]] && return 1 |
357 |
azarah |
1.96 |
|
358 |
vapier |
1.152 |
# use -c so we can test the assembler as well |
359 |
azarah |
1.96 |
local PROG=$(tc-get${comp}) |
360 |
vapier |
1.168 |
${PROG} "${flag}" -c -o /dev/null -xc /dev/null \ |
361 |
azarah |
1.96 |
> /dev/null 2>&1 |
362 |
|
|
} |
363 |
|
|
|
364 |
vapier |
1.121 |
# @FUNCTION: test-flag-CC |
365 |
|
|
# @USAGE: <flag> |
366 |
|
|
# @DESCRIPTION: |
367 |
|
|
# Returns shell true if <flag> is supported by the C compiler, else returns shell false. |
368 |
azarah |
1.96 |
test-flag-CC() { test-flag-PROG "CC" "$1"; } |
369 |
|
|
|
370 |
vapier |
1.121 |
# @FUNCTION: test-flag-CXX |
371 |
|
|
# @USAGE: <flag> |
372 |
|
|
# @DESCRIPTION: |
373 |
|
|
# Returns shell true if <flag> is supported by the C++ compiler, else returns shell false. |
374 |
azarah |
1.96 |
test-flag-CXX() { test-flag-PROG "CXX" "$1"; } |
375 |
|
|
|
376 |
dberkholz |
1.124 |
# @FUNCTION: test-flag-F77 |
377 |
|
|
# @USAGE: <flag> |
378 |
|
|
# @DESCRIPTION: |
379 |
|
|
# Returns shell true if <flag> is supported by the Fortran 77 compiler, else returns shell false. |
380 |
|
|
test-flag-F77() { test-flag-PROG "F77" "$1"; } |
381 |
|
|
|
382 |
|
|
# @FUNCTION: test-flag-FC |
383 |
|
|
# @USAGE: <flag> |
384 |
|
|
# @DESCRIPTION: |
385 |
|
|
# Returns shell true if <flag> is supported by the Fortran 90 compiler, else returns shell false. |
386 |
|
|
test-flag-FC() { test-flag-PROG "FC" "$1"; } |
387 |
|
|
|
388 |
azarah |
1.99 |
test-flags-PROG() { |
389 |
|
|
local comp=$1 |
390 |
|
|
local flags |
391 |
azarah |
1.96 |
local x |
392 |
azarah |
1.99 |
|
393 |
|
|
shift |
394 |
|
|
|
395 |
vapier |
1.113 |
[[ -z ${comp} ]] && return 1 |
396 |
swegener |
1.101 |
|
397 |
azarah |
1.96 |
for x in "$@" ; do |
398 |
vapier |
1.113 |
test-flag-${comp} "${x}" && flags="${flags}${flags:+ }${x}" |
399 |
azarah |
1.96 |
done |
400 |
|
|
|
401 |
azarah |
1.99 |
echo "${flags}" |
402 |
azarah |
1.96 |
|
403 |
azarah |
1.99 |
# Just bail if we dont have any flags |
404 |
|
|
[[ -n ${flags} ]] |
405 |
azarah |
1.96 |
} |
406 |
|
|
|
407 |
vapier |
1.121 |
# @FUNCTION: test-flags-CC |
408 |
|
|
# @USAGE: <flags> |
409 |
|
|
# @DESCRIPTION: |
410 |
|
|
# Returns shell true if <flags> are supported by the C compiler, else returns shell false. |
411 |
azarah |
1.99 |
test-flags-CC() { test-flags-PROG "CC" "$@"; } |
412 |
|
|
|
413 |
vapier |
1.121 |
# @FUNCTION: test-flags-CXX |
414 |
|
|
# @USAGE: <flags> |
415 |
|
|
# @DESCRIPTION: |
416 |
|
|
# Returns shell true if <flags> are supported by the C++ compiler, else returns shell false. |
417 |
azarah |
1.99 |
test-flags-CXX() { test-flags-PROG "CXX" "$@"; } |
418 |
|
|
|
419 |
dberkholz |
1.124 |
# @FUNCTION: test-flags-F77 |
420 |
|
|
# @USAGE: <flags> |
421 |
|
|
# @DESCRIPTION: |
422 |
|
|
# Returns shell true if <flags> are supported by the Fortran 77 compiler, else returns shell false. |
423 |
|
|
test-flags-F77() { test-flags-PROG "F77" "$@"; } |
424 |
|
|
|
425 |
|
|
# @FUNCTION: test-flags-FC |
426 |
|
|
# @USAGE: <flags> |
427 |
|
|
# @DESCRIPTION: |
428 |
|
|
# Returns shell true if <flags> are supported by the Fortran 90 compiler, else returns shell false. |
429 |
|
|
test-flags-FC() { test-flags-PROG "FC" "$@"; } |
430 |
|
|
|
431 |
vapier |
1.121 |
# @FUNCTION: test-flags |
432 |
|
|
# @USAGE: <flags> |
433 |
|
|
# @DESCRIPTION: |
434 |
azarah |
1.99 |
# Short-hand that should hopefully work for both C and C++ compiler, but |
435 |
azarah |
1.100 |
# its really only present due to the append-flags() abomination. |
436 |
azarah |
1.99 |
test-flags() { test-flags-CC "$@"; } |
437 |
|
|
|
438 |
vapier |
1.121 |
# @FUNCTION: test_version_info |
439 |
|
|
# @USAGE: <version> |
440 |
|
|
# @DESCRIPTION: |
441 |
|
|
# Returns shell true if the current C compiler version matches <version>, else returns shell false. |
442 |
|
|
# Accepts shell globs. |
443 |
agriffis |
1.58 |
test_version_info() { |
444 |
vapier |
1.75 |
if [[ $($(tc-getCC) --version 2>&1) == *$1* ]]; then |
445 |
agriffis |
1.58 |
return 0 |
446 |
|
|
else |
447 |
|
|
return 1 |
448 |
|
|
fi |
449 |
|
|
} |
450 |
|
|
|
451 |
vapier |
1.121 |
# @FUNCTION: strip-unsupported-flags |
452 |
|
|
# @DESCRIPTION: |
453 |
dberkholz |
1.124 |
# Strip {C,CXX,F,FC}FLAGS of any flags not supported by the active toolchain. |
454 |
puggy |
1.29 |
strip-unsupported-flags() { |
455 |
vapier |
1.113 |
export CFLAGS=$(test-flags-CC ${CFLAGS}) |
456 |
|
|
export CXXFLAGS=$(test-flags-CXX ${CXXFLAGS}) |
457 |
dberkholz |
1.124 |
export FFLAGS=$(test-flags-F77 ${FFLAGS}) |
458 |
|
|
export FCFLAGS=$(test-flags-FC ${FCFLAGS}) |
459 |
azarah |
1.8 |
} |
460 |
|
|
|
461 |
vapier |
1.121 |
# @FUNCTION: get-flag |
462 |
|
|
# @USAGE: <flag> |
463 |
|
|
# @DESCRIPTION: |
464 |
|
|
# Find and echo the value for a particular flag. Accepts shell globs. |
465 |
vapier |
1.10 |
get-flag() { |
466 |
vapier |
1.167 |
local f var findflag="$1" |
467 |
agriffis |
1.58 |
|
468 |
vapier |
1.36 |
# this code looks a little flaky but seems to work for |
469 |
|
|
# everything we want ... |
470 |
|
|
# for example, if CFLAGS="-march=i686": |
471 |
agriffis |
1.58 |
# `get-flag -march` == "-march=i686" |
472 |
|
|
# `get-flag march` == "i686" |
473 |
vapier |
1.167 |
for var in $(all-flag-vars) ; do |
474 |
|
|
for f in ${!var} ; do |
475 |
|
|
if [ "${f/${findflag}}" != "${f}" ] ; then |
476 |
|
|
printf "%s\n" "${f/-${findflag}=}" |
477 |
|
|
return 0 |
478 |
|
|
fi |
479 |
|
|
done |
480 |
vapier |
1.10 |
done |
481 |
vapier |
1.28 |
return 1 |
482 |
joker |
1.16 |
} |
483 |
|
|
|
484 |
vapier |
1.121 |
# @FUNCTION: has_m64 |
485 |
|
|
# @DESCRIPTION: |
486 |
|
|
# This doesn't test if the flag is accepted, it tests if the flag actually |
487 |
|
|
# WORKS. Non-multilib gcc will take both -m32 and -m64. If the flag works |
488 |
|
|
# return code is 0, else the return code is 1. |
489 |
lv |
1.56 |
has_m64() { |
490 |
vapier |
1.166 |
eqawarn "${FUNCNAME}: don't use this anymore" |
491 |
|
|
|
492 |
lv |
1.62 |
# this doesnt test if the flag is accepted, it tests if the flag |
493 |
|
|
# actually -WORKS-. non-multilib gcc will take both -m32 and -m64! |
494 |
|
|
# please dont replace this function with test_flag in some future |
495 |
|
|
# clean-up! |
496 |
swegener |
1.101 |
|
497 |
vapier |
1.72 |
local temp="$(emktemp)" |
498 |
azarah |
1.96 |
echo "int main() { return(0); }" > "${temp}".c |
499 |
kugelfang |
1.74 |
MY_CC=$(tc-getCC) |
500 |
azarah |
1.96 |
${MY_CC/ .*/} -m64 -o "$(emktemp)" "${temp}".c > /dev/null 2>&1 |
501 |
vapier |
1.72 |
local ret=$? |
502 |
azarah |
1.96 |
rm -f "${temp}".c |
503 |
|
|
[[ ${ret} != 1 ]] && return 0 |
504 |
lv |
1.62 |
return 1 |
505 |
lv |
1.56 |
} |
506 |
|
|
|
507 |
|
|
has_m32() { |
508 |
vapier |
1.166 |
die "${FUNCNAME}: don't use this anymore" |
509 |
lv |
1.56 |
} |
510 |
|
|
|
511 |
vapier |
1.121 |
# @FUNCTION: replace-sparc64-flags |
512 |
|
|
# @DESCRIPTION: |
513 |
|
|
# Sets mcpu to v8 and uses the original value as mtune if none specified. |
514 |
vapier |
1.18 |
replace-sparc64-flags() { |
515 |
fmccor |
1.98 |
local SPARC64_CPUS="ultrasparc3 ultrasparc v9" |
516 |
joker |
1.16 |
|
517 |
mr_bones_ |
1.83 |
if [ "${CFLAGS/mtune}" != "${CFLAGS}" ]; then |
518 |
agriffis |
1.58 |
for x in ${SPARC64_CPUS}; do |
519 |
joker |
1.16 |
CFLAGS="${CFLAGS/-mcpu=${x}/-mcpu=v8}" |
520 |
|
|
done |
521 |
mr_bones_ |
1.83 |
else |
522 |
swegener |
1.111 |
for x in ${SPARC64_CPUS}; do |
523 |
joker |
1.16 |
CFLAGS="${CFLAGS/-mcpu=${x}/-mcpu=v8 -mtune=${x}}" |
524 |
|
|
done |
525 |
|
|
fi |
526 |
mr_bones_ |
1.83 |
|
527 |
|
|
if [ "${CXXFLAGS/mtune}" != "${CXXFLAGS}" ]; then |
528 |
agriffis |
1.58 |
for x in ${SPARC64_CPUS}; do |
529 |
joker |
1.16 |
CXXFLAGS="${CXXFLAGS/-mcpu=${x}/-mcpu=v8}" |
530 |
|
|
done |
531 |
|
|
else |
532 |
swegener |
1.111 |
for x in ${SPARC64_CPUS}; do |
533 |
joker |
1.16 |
CXXFLAGS="${CXXFLAGS/-mcpu=${x}/-mcpu=v8 -mtune=${x}}" |
534 |
|
|
done |
535 |
|
|
fi |
536 |
vapier |
1.59 |
|
537 |
|
|
export CFLAGS CXXFLAGS |
538 |
solar |
1.27 |
} |
539 |
|
|
|
540 |
abcd |
1.147 |
# @FUNCTION: append-libs |
541 |
|
|
# @USAGE: <libs> |
542 |
|
|
# @DESCRIPTION: |
543 |
|
|
# Add extra <libs> to the current LIBS. |
544 |
|
|
append-libs() { |
545 |
vapier |
1.158 |
[[ $# -eq 0 ]] && return 0 |
546 |
abcd |
1.147 |
local flag |
547 |
|
|
for flag in "$@"; do |
548 |
|
|
[[ ${flag} == -l* ]] && flag=${flag#-l} |
549 |
|
|
export LIBS="${LIBS} -l${flag}" |
550 |
|
|
done |
551 |
|
|
|
552 |
|
|
return 0 |
553 |
|
|
} |
554 |
|
|
|
555 |
vapier |
1.121 |
# @FUNCTION: append-ldflags |
556 |
|
|
# @USAGE: <flags> |
557 |
|
|
# @DESCRIPTION: |
558 |
|
|
# Add extra <flags> to the current LDFLAGS. |
559 |
solar |
1.27 |
append-ldflags() { |
560 |
vapier |
1.158 |
[[ $# -eq 0 ]] && return 0 |
561 |
flameeyes |
1.123 |
local flag |
562 |
|
|
for flag in "$@"; do |
563 |
|
|
[[ ${flag} == -l* ]] && \ |
564 |
|
|
ewarn "Appending a library link instruction (${flag}); libraries to link to should not be passed through LDFLAGS" |
565 |
|
|
done |
566 |
|
|
|
567 |
vapier |
1.59 |
export LDFLAGS="${LDFLAGS} $*" |
568 |
vapier |
1.28 |
return 0 |
569 |
solar |
1.27 |
} |
570 |
|
|
|
571 |
vapier |
1.121 |
# @FUNCTION: filter-ldflags |
572 |
|
|
# @USAGE: <flags> |
573 |
|
|
# @DESCRIPTION: |
574 |
|
|
# Remove particular <flags> from LDFLAGS. Accepts shell globs. |
575 |
solar |
1.41 |
filter-ldflags() { |
576 |
kevquinn |
1.105 |
_filter-var LDFLAGS "$@" |
577 |
solar |
1.41 |
return 0 |
578 |
|
|
} |
579 |
|
|
|
580 |
vapier |
1.121 |
# @FUNCTION: raw-ldflags |
581 |
vapier |
1.156 |
# @USAGE: [flags] |
582 |
vapier |
1.121 |
# @DESCRIPTION: |
583 |
kevquinn |
1.105 |
# Turn C style ldflags (-Wl,-foo) into straight ldflags - the results |
584 |
|
|
# are suitable for passing directly to 'ld'; note LDFLAGS is usually passed |
585 |
|
|
# to gcc where it needs the '-Wl,'. |
586 |
vapier |
1.156 |
# |
587 |
|
|
# If no flags are specified, then default to ${LDFLAGS}. |
588 |
vapier |
1.102 |
raw-ldflags() { |
589 |
|
|
local x input="$@" |
590 |
|
|
[[ -z ${input} ]] && input=${LDFLAGS} |
591 |
|
|
set -- |
592 |
|
|
for x in ${input} ; do |
593 |
vapier |
1.103 |
x=${x#-Wl,} |
594 |
|
|
set -- "$@" ${x//,/ } |
595 |
vapier |
1.102 |
done |
596 |
|
|
echo "$@" |
597 |
|
|
} |
598 |
|
|
|
599 |
ssuominen |
1.145 |
# @FUNCTION: no-as-needed |
600 |
|
|
# @RETURN: Flag to disable asneeded behavior for use with append-ldflags. |
601 |
|
|
no-as-needed() { |
602 |
|
|
case $($(tc-getLD) -v 2>&1 </dev/null) in |
603 |
|
|
*GNU*) # GNU ld |
604 |
|
|
echo "-Wl,--no-as-needed" ;; |
605 |
|
|
esac |
606 |
|
|
} |
607 |
vapier |
1.113 |
|
608 |
vapier |
1.160 |
fi |