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 |
1.165 |
# $Header: /var/cvsroot/gentoo-x86/eclass/flag-o-matic.eclass,v 1.164 2012/01/13 22:40:29 vapier Exp $ |
4 |
vapier |
1.121 |
|
5 |
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# @ECLASS: flag-o-matic.eclass |
6 |
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# @MAINTAINER: |
7 |
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# toolchain@gentoo.org |
8 |
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# @BLURB: common functions to manipulate and query toolchain flags |
9 |
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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 |
dberkholz |
1.124 |
# {C,CXX,F,FC}FLAGS that we allow in strip-flags |
19 |
vapier |
1.117 |
# Note: shell globs and character lists are allowed |
20 |
vapier |
1.36 |
setup-allowed-flags() { |
21 |
dirtyepic |
1.163 |
ALLOWED_FLAGS="-pipe" |
22 |
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ALLOWED_FLAGS+=" -O -O1 -O2 -Os -mcpu -march -mtune" |
23 |
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ALLOWED_FLAGS+=" -fstack-protector -fstack-protector-all" |
24 |
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ALLOWED_FLAGS+=" -fbounds-checking -fno-strict-overflow" |
25 |
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ALLOWED_FLAGS+=" -fno-PIE -fno-pie -fno-unit-at-a-time" |
26 |
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ALLOWED_FLAGS+=" -g -g[0-9] -ggdb -ggdb[0-9] -gstabs -gstabs+" |
27 |
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ALLOWED_FLAGS+=" -fno-ident -fpermissive" |
28 |
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ALLOWED_FLAGS+=" -W* -w" |
29 |
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|
30 |
vapier |
1.65 |
# allow a bunch of flags that negate features / control ABI |
31 |
dirtyepic |
1.163 |
ALLOWED_FLAGS+=" -fno-stack-protector -fno-stack-protector-all \ |
32 |
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-fno-strict-aliasing -fno-bounds-checking -fstrict-overflow \ |
33 |
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-fno-omit-frame-pointer" |
34 |
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ALLOWED_FLAGS+=" -mregparm -mno-app-regs -mapp-regs -mno-mmx -mno-sse \ |
35 |
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-mno-sse2 -mno-sse3 -mno-ssse3 -mno-sse4 -mno-sse4.1 -mno-sse4.2 \ |
36 |
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-mno-avx -mno-aes -mno-pclmul -mno-sse4a -mno-3dnow -mno-popcnt \ |
37 |
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-mno-abm -mips1 -mips2 -mips3 -mips4 -mips32 -mips64 -mips16 -mplt \ |
38 |
vapier |
1.87 |
-msoft-float -mno-soft-float -mhard-float -mno-hard-float -mfpu \ |
39 |
dirtyepic |
1.149 |
-mieee -mieee-with-inexact -mschedule -mfloat-gprs -mspe -mno-spe \ |
40 |
dirtyepic |
1.163 |
-mtls-direct-seg-refs -mno-tls-direct-seg-refs -mflat -mno-flat \ |
41 |
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-mno-faster-structs -mfaster-structs -m32 -m64 -mx32 -mabi \ |
42 |
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-mlittle-endian -mbig-endian -EL -EB -fPIC -mlive-g0 -mcmodel \ |
43 |
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-mstack-bias -mno-stack-bias -msecure-plt -m*-toc -D* -U*" |
44 |
vapier |
1.135 |
|
45 |
dirtyepic |
1.148 |
# 4.5 |
46 |
dirtyepic |
1.163 |
ALLOWED_FLAGS+=" -mno-fma4 -mno-movbe -mno-xop -mno-lwp" |
47 |
dirtyepic |
1.149 |
# 4.6 |
48 |
dirtyepic |
1.163 |
ALLOWED_FLAGS+=" -mno-fsgsbase -mno-rdrnd -mno-f16c -mno-bmi -mno-tbm" |
49 |
dirtyepic |
1.148 |
|
50 |
dirtyepic |
1.163 |
export ALLOWED_FLAGS |
51 |
vapier |
1.36 |
return 0 |
52 |
aliz |
1.24 |
} |
53 |
verwilst |
1.13 |
|
54 |
kevquinn |
1.105 |
# inverted filters for hardened compiler. This is trying to unpick |
55 |
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# the hardened compiler defaults. |
56 |
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_filter-hardened() { |
57 |
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local f |
58 |
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for f in "$@" ; do |
59 |
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case "${f}" in |
60 |
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# Ideally we should only concern ourselves with PIE flags, |
61 |
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# not -fPIC or -fpic, but too many places filter -fPIC without |
62 |
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# thinking about -fPIE. |
63 |
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-fPIC|-fpic|-fPIE|-fpie|-Wl,pie|-pie) |
64 |
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gcc-specs-pie || continue |
65 |
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is-flagq -nopie || append-flags -nopie;; |
66 |
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-fstack-protector) |
67 |
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gcc-specs-ssp || continue |
68 |
gengor |
1.131 |
is-flagq -fno-stack-protector || append-flags $(test-flags -fno-stack-protector);; |
69 |
kevquinn |
1.105 |
-fstack-protector-all) |
70 |
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gcc-specs-ssp-to-all || continue |
71 |
gengor |
1.131 |
is-flagq -fno-stack-protector-all || append-flags $(test-flags -fno-stack-protector-all);; |
72 |
gengor |
1.128 |
-fno-strict-overflow) |
73 |
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gcc-specs-nostrict || continue |
74 |
gengor |
1.131 |
is-flagq -fstrict-overflow || append-flags $(test-flags -fstrict-overflow);; |
75 |
solar |
1.27 |
esac |
76 |
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done |
77 |
kevquinn |
1.105 |
} |
78 |
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79 |
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# Remove occurrences of strings from variable given in $1 |
80 |
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# Strings removed are matched as globs, so for example |
81 |
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# '-O*' would remove -O1, -O2 etc. |
82 |
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_filter-var() { |
83 |
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local f x VAR VAL |
84 |
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declare -a new |
85 |
vapier |
1.36 |
|
86 |
kevquinn |
1.105 |
VAR=$1 |
87 |
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shift |
88 |
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eval VAL=\${${VAR}} |
89 |
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for f in ${VAL}; do |
90 |
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for x in "$@"; do |
91 |
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# Note this should work with globs like -O* |
92 |
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[[ ${f} == ${x} ]] && continue 2 |
93 |
agriffis |
1.61 |
done |
94 |
kevquinn |
1.105 |
eval new\[\${\#new\[@]}]=\${f} |
95 |
verwilst |
1.1 |
done |
96 |
kevquinn |
1.105 |
eval export ${VAR}=\${new\[*]} |
97 |
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} |
98 |
agriffis |
1.61 |
|
99 |
vapier |
1.121 |
# @FUNCTION: filter-flags |
100 |
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# @USAGE: <flags> |
101 |
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# @DESCRIPTION: |
102 |
vapier |
1.164 |
# Remove particular <flags> from {C,CPP,CXX,F,FC,LD}FLAGS. Accepts shell globs. |
103 |
kevquinn |
1.105 |
filter-flags() { |
104 |
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_filter-hardened "$@" |
105 |
vapier |
1.164 |
local v |
106 |
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for v in C CPP CXX F FC LD ; do |
107 |
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_filter-var ${v}FLAGS "$@" |
108 |
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done |
109 |
vapier |
1.36 |
return 0 |
110 |
verwilst |
1.2 |
} |
111 |
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|
112 |
vapier |
1.121 |
# @FUNCTION: filter-lfs-flags |
113 |
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# @DESCRIPTION: |
114 |
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# Remove flags that enable Large File Support. |
115 |
vapier |
1.40 |
filter-lfs-flags() { |
116 |
vapier |
1.154 |
[[ $# -ne 0 ]] && die "filter-lfs-flags takes no arguments" |
117 |
vapier |
1.153 |
# http://www.gnu.org/s/libc/manual/html_node/Feature-Test-Macros.html |
118 |
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# _LARGEFILE_SOURCE: enable support for new LFS funcs (ftello/etc...) |
119 |
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# _LARGEFILE64_SOURCE: enable support for 64bit variants (off64_t/fseeko64/etc...) |
120 |
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# _FILE_OFFSET_BITS: default to 64bit variants (off_t is defined as off64_t) |
121 |
vapier |
1.40 |
filter-flags -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE |
122 |
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} |
123 |
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124 |
vapier |
1.121 |
# @FUNCTION: append-cppflags |
125 |
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# @USAGE: <flags> |
126 |
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# @DESCRIPTION: |
127 |
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# Add extra <flags> to the current CPPFLAGS. |
128 |
vapier |
1.118 |
append-cppflags() { |
129 |
vapier |
1.158 |
[[ $# -eq 0 ]] && return 0 |
130 |
vapier |
1.118 |
export CPPFLAGS="${CPPFLAGS} $*" |
131 |
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return 0 |
132 |
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} |
133 |
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134 |
vapier |
1.136 |
# @FUNCTION: append-cflags |
135 |
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# @USAGE: <flags> |
136 |
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# @DESCRIPTION: |
137 |
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# Add extra <flags> to the current CFLAGS. |
138 |
mr_bones_ |
1.137 |
append-cflags() { |
139 |
vapier |
1.158 |
[[ $# -eq 0 ]] && return 0 |
140 |
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export CFLAGS=$(test-flags-CC ${CFLAGS} "$@") |
141 |
vapier |
1.136 |
return 0 |
142 |
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} |
143 |
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|
144 |
gengor |
1.132 |
# @FUNCTION: append-cxxflags |
145 |
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# @USAGE: <flags> |
146 |
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# @DESCRIPTION: |
147 |
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# Add extra <flags> to the current CXXFLAGS. |
148 |
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append-cxxflags() { |
149 |
vapier |
1.158 |
[[ $# -eq 0 ]] && return 0 |
150 |
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export CXXFLAGS=$(test-flags-CXX ${CXXFLAGS} "$@") |
151 |
gengor |
1.132 |
return 0 |
152 |
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} |
153 |
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154 |
dberkholz |
1.124 |
# @FUNCTION: append-fflags |
155 |
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# @USAGE: <flags> |
156 |
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# @DESCRIPTION: |
157 |
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# Add extra <flags> to the current {F,FC}FLAGS. |
158 |
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append-fflags() { |
159 |
vapier |
1.158 |
[[ $# -eq 0 ]] && return 0 |
160 |
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export FFLAGS=$(test-flags-F77 ${FFLAGS} "$@") |
161 |
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export FCFLAGS=$(test-flags-FC ${FCFLAGS} "$@") |
162 |
dberkholz |
1.124 |
return 0 |
163 |
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} |
164 |
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165 |
vapier |
1.121 |
# @FUNCTION: append-lfs-flags |
166 |
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# @DESCRIPTION: |
167 |
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# Add flags that enable Large File Support. |
168 |
vapier |
1.48 |
append-lfs-flags() { |
169 |
vapier |
1.154 |
[[ $# -ne 0 ]] && die "append-lfs-flags takes no arguments" |
170 |
vapier |
1.155 |
# see comments in filter-lfs-flags func for meaning of these |
171 |
vapier |
1.118 |
append-cppflags -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE |
172 |
vapier |
1.48 |
} |
173 |
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|
174 |
vapier |
1.121 |
# @FUNCTION: append-flags |
175 |
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# @USAGE: <flags> |
176 |
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# @DESCRIPTION: |
177 |
dberkholz |
1.124 |
# Add extra <flags> to your current {C,CXX,F,FC}FLAGS. |
178 |
vapier |
1.18 |
append-flags() { |
179 |
vapier |
1.158 |
[[ $# -eq 0 ]] && return 0 |
180 |
vapier |
1.136 |
append-cflags "$@" |
181 |
vapier |
1.138 |
append-cxxflags "$@" |
182 |
vapier |
1.136 |
append-fflags "$@" |
183 |
vapier |
1.28 |
return 0 |
184 |
verwilst |
1.1 |
} |
185 |
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|
186 |
vapier |
1.121 |
# @FUNCTION: replace-flags |
187 |
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# @USAGE: <old> <new> |
188 |
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# @DESCRIPTION: |
189 |
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# Replace the <old> flag with <new>. Accepts shell globs for <old>. |
190 |
vapier |
1.18 |
replace-flags() { |
191 |
vapier |
1.93 |
[[ $# != 2 ]] \ |
192 |
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&& echo && eerror "Usage: replace-flags <old flag> <new flag>" \ |
193 |
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&& die "replace-flags takes 2 arguments, not $#" |
194 |
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|
195 |
mr_bones_ |
1.83 |
local f fset |
196 |
dirtyepic |
1.125 |
declare -a new_CFLAGS new_CXXFLAGS new_FFLAGS new_FCFLAGS |
197 |
agriffis |
1.64 |
|
198 |
dberkholz |
1.124 |
for fset in CFLAGS CXXFLAGS FFLAGS FCFLAGS; do |
199 |
agriffis |
1.64 |
# Looping over the flags instead of using a global |
200 |
|
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# substitution ensures that we're working with flag atoms. |
201 |
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# Otherwise globs like -O* have the potential to wipe out the |
202 |
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# list of flags. |
203 |
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for f in ${!fset}; do |
204 |
|
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# Note this should work with globs like -O* |
205 |
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[[ ${f} == ${1} ]] && f=${2} |
206 |
|
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eval new_${fset}\[\${\#new_${fset}\[@]}]=\${f} |
207 |
|
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done |
208 |
|
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eval export ${fset}=\${new_${fset}\[*]} |
209 |
|
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done |
210 |
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|
211 |
vapier |
1.28 |
return 0 |
212 |
danarmak |
1.7 |
} |
213 |
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|
214 |
vapier |
1.121 |
# @FUNCTION: replace-cpu-flags |
215 |
|
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# @USAGE: <old> <new> |
216 |
|
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# @DESCRIPTION: |
217 |
|
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# Replace cpu flags (like -march/-mcpu/-mtune) that select the <old> cpu |
218 |
|
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# with flags that select the <new> cpu. Accepts shell globs for <old>. |
219 |
vapier |
1.37 |
replace-cpu-flags() { |
220 |
vapier |
1.70 |
local newcpu="$#" ; newcpu="${!newcpu}" |
221 |
|
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while [ $# -gt 1 ] ; do |
222 |
agriffis |
1.64 |
# quote to make sure that no globbing is done (particularly on |
223 |
vapier |
1.113 |
# ${oldcpu}) prior to calling replace-flags |
224 |
vapier |
1.70 |
replace-flags "-march=${1}" "-march=${newcpu}" |
225 |
|
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replace-flags "-mcpu=${1}" "-mcpu=${newcpu}" |
226 |
|
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replace-flags "-mtune=${1}" "-mtune=${newcpu}" |
227 |
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shift |
228 |
vapier |
1.37 |
done |
229 |
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return 0 |
230 |
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} |
231 |
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|
232 |
vapier |
1.113 |
_is_flagq() { |
233 |
kevquinn |
1.105 |
local x |
234 |
vapier |
1.113 |
for x in ${!1} ; do |
235 |
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[[ ${x} == $2 ]] && return 0 |
236 |
kevquinn |
1.105 |
done |
237 |
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return 1 |
238 |
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} |
239 |
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|
240 |
vapier |
1.121 |
# @FUNCTION: is-flagq |
241 |
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# @USAGE: <flag> |
242 |
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# @DESCRIPTION: |
243 |
dberkholz |
1.124 |
# Returns shell true if <flag> is in {C,CXX,F,FC}FLAGS, else returns shell false. Accepts shell globs. |
244 |
vapier |
1.113 |
is-flagq() { |
245 |
|
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[[ -n $2 ]] && die "Usage: is-flag <flag>" |
246 |
dberkholz |
1.124 |
_is_flagq CFLAGS $1 || _is_flagq CXXFLAGS $1 || _is_flagq FFLAGS $1 || _is_flagq FCFLAGS $1 |
247 |
vapier |
1.113 |
} |
248 |
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|
249 |
vapier |
1.121 |
# @FUNCTION: is-flag |
250 |
|
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# @USAGE: <flag> |
251 |
|
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# @DESCRIPTION: |
252 |
dberkholz |
1.124 |
# Echo's "true" if flag is set in {C,CXX,F,FC}FLAGS. Accepts shell globs. |
253 |
danarmak |
1.7 |
is-flag() { |
254 |
vapier |
1.113 |
is-flagq "$@" && echo true |
255 |
kevquinn |
1.105 |
} |
256 |
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|
257 |
vapier |
1.121 |
# @FUNCTION: is-ldflagq |
258 |
|
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# @USAGE: <flag> |
259 |
|
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# @DESCRIPTION: |
260 |
|
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# Returns shell true if <flag> is in LDFLAGS, else returns shell false. Accepts shell globs. |
261 |
kevquinn |
1.105 |
is-ldflagq() { |
262 |
vapier |
1.113 |
[[ -n $2 ]] && die "Usage: is-ldflag <flag>" |
263 |
|
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_is_flagq LDFLAGS $1 |
264 |
verwilst |
1.1 |
} |
265 |
azarah |
1.8 |
|
266 |
vapier |
1.121 |
# @FUNCTION: is-ldflag |
267 |
|
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# @USAGE: <flag> |
268 |
|
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# @DESCRIPTION: |
269 |
|
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# Echo's "true" if flag is set in LDFLAGS. Accepts shell globs. |
270 |
kevquinn |
1.105 |
is-ldflag() { |
271 |
vapier |
1.113 |
is-ldflagq "$@" && echo true |
272 |
kevquinn |
1.105 |
} |
273 |
|
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|
274 |
vapier |
1.121 |
# @FUNCTION: filter-mfpmath |
275 |
|
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# @USAGE: <math types> |
276 |
|
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# @DESCRIPTION: |
277 |
|
|
# Remove specified math types from the fpmath flag. For example, if the user |
278 |
|
|
# has -mfpmath=sse,386, running `filter-mfpmath sse` will leave the user with |
279 |
|
|
# -mfpmath=386. |
280 |
vapier |
1.36 |
filter-mfpmath() { |
281 |
agriffis |
1.58 |
local orig_mfpmath new_math prune_math |
282 |
|
|
|
283 |
vapier |
1.36 |
# save the original -mfpmath flag |
284 |
vapier |
1.109 |
orig_mfpmath=$(get-flag -mfpmath) |
285 |
vapier |
1.36 |
# get the value of the current -mfpmath flag |
286 |
vapier |
1.109 |
new_math=$(get-flag mfpmath) |
287 |
|
|
new_math=" ${new_math//,/ } " |
288 |
vapier |
1.36 |
# figure out which math values are to be removed |
289 |
agriffis |
1.58 |
prune_math="" |
290 |
vapier |
1.36 |
for prune_math in "$@" ; do |
291 |
vapier |
1.109 |
new_math=${new_math/ ${prune_math} / } |
292 |
vapier |
1.36 |
done |
293 |
vapier |
1.109 |
new_math=$(echo ${new_math}) |
294 |
|
|
new_math=${new_math// /,} |
295 |
vapier |
1.36 |
|
296 |
vapier |
1.109 |
if [[ -z ${new_math} ]] ; then |
297 |
vapier |
1.36 |
# if we're removing all user specified math values are |
298 |
|
|
# slated for removal, then we just filter the flag |
299 |
|
|
filter-flags ${orig_mfpmath} |
300 |
|
|
else |
301 |
|
|
# if we only want to filter some of the user specified |
302 |
|
|
# math values, then we replace the current flag |
303 |
|
|
replace-flags ${orig_mfpmath} -mfpmath=${new_math} |
304 |
|
|
fi |
305 |
|
|
return 0 |
306 |
|
|
} |
307 |
|
|
|
308 |
vapier |
1.121 |
# @FUNCTION: strip-flags |
309 |
|
|
# @DESCRIPTION: |
310 |
|
|
# Strip C[XX]FLAGS of everything except known good/safe flags. |
311 |
azarah |
1.8 |
strip-flags() { |
312 |
dberkholz |
1.124 |
local x y flag NEW_CFLAGS NEW_CXXFLAGS NEW_FFLAGS NEW_FCFLAGS |
313 |
agriffis |
1.58 |
|
314 |
vapier |
1.36 |
setup-allowed-flags |
315 |
|
|
|
316 |
azarah |
1.8 |
local NEW_CFLAGS="" |
317 |
|
|
local NEW_CXXFLAGS="" |
318 |
dberkholz |
1.124 |
local NEW_FFLAGS="" |
319 |
|
|
local NEW_FCFLAGS="" |
320 |
azarah |
1.8 |
|
321 |
agriffis |
1.58 |
set -f # disable pathname expansion |
322 |
azarah |
1.8 |
|
323 |
agriffis |
1.58 |
for x in ${CFLAGS}; do |
324 |
|
|
for y in ${ALLOWED_FLAGS}; do |
325 |
lostlogic |
1.14 |
flag=${x%%=*} |
326 |
vapier |
1.65 |
if [ "${flag%%${y}}" = "" ] ; then |
327 |
lostlogic |
1.14 |
NEW_CFLAGS="${NEW_CFLAGS} ${x}" |
328 |
|
|
break |
329 |
azarah |
1.8 |
fi |
330 |
|
|
done |
331 |
|
|
done |
332 |
|
|
|
333 |
agriffis |
1.58 |
for x in ${CXXFLAGS}; do |
334 |
|
|
for y in ${ALLOWED_FLAGS}; do |
335 |
lostlogic |
1.14 |
flag=${x%%=*} |
336 |
vapier |
1.65 |
if [ "${flag%%${y}}" = "" ] ; then |
337 |
lostlogic |
1.14 |
NEW_CXXFLAGS="${NEW_CXXFLAGS} ${x}" |
338 |
|
|
break |
339 |
azarah |
1.8 |
fi |
340 |
|
|
done |
341 |
|
|
done |
342 |
azarah |
1.30 |
|
343 |
dberkholz |
1.124 |
for x in ${FFLAGS}; do |
344 |
|
|
for y in ${ALLOWED_FLAGS}; do |
345 |
|
|
flag=${x%%=*} |
346 |
|
|
if [ "${flag%%${y}}" = "" ] ; then |
347 |
|
|
NEW_FFLAGS="${NEW_FFLAGS} ${x}" |
348 |
|
|
break |
349 |
|
|
fi |
350 |
|
|
done |
351 |
|
|
done |
352 |
|
|
|
353 |
|
|
for x in ${FCFLAGS}; do |
354 |
|
|
for y in ${ALLOWED_FLAGS}; do |
355 |
|
|
flag=${x%%=*} |
356 |
|
|
if [ "${flag%%${y}}" = "" ] ; then |
357 |
|
|
NEW_FCFLAGS="${NEW_FCFLAGS} ${x}" |
358 |
|
|
break |
359 |
|
|
fi |
360 |
|
|
done |
361 |
|
|
done |
362 |
|
|
|
363 |
azarah |
1.30 |
# In case we filtered out all optimization flags fallback to -O2 |
364 |
|
|
if [ "${CFLAGS/-O}" != "${CFLAGS}" -a "${NEW_CFLAGS/-O}" = "${NEW_CFLAGS}" ]; then |
365 |
|
|
NEW_CFLAGS="${NEW_CFLAGS} -O2" |
366 |
|
|
fi |
367 |
|
|
if [ "${CXXFLAGS/-O}" != "${CXXFLAGS}" -a "${NEW_CXXFLAGS/-O}" = "${NEW_CXXFLAGS}" ]; then |
368 |
|
|
NEW_CXXFLAGS="${NEW_CXXFLAGS} -O2" |
369 |
|
|
fi |
370 |
dberkholz |
1.124 |
if [ "${FFLAGS/-O}" != "${FFLAGS}" -a "${NEW_FFLAGS/-O}" = "${NEW_FFLAGS}" ]; then |
371 |
|
|
NEW_FFLAGS="${NEW_FFLAGS} -O2" |
372 |
|
|
fi |
373 |
|
|
if [ "${FCFLAGS/-O}" != "${FCFLAGS}" -a "${NEW_FCFLAGS/-O}" = "${NEW_FCFLAGS}" ]; then |
374 |
|
|
NEW_FCFLAGS="${NEW_FCFLAGS} -O2" |
375 |
|
|
fi |
376 |
azarah |
1.8 |
|
377 |
agriffis |
1.58 |
set +f # re-enable pathname expansion |
378 |
azarah |
1.8 |
|
379 |
|
|
export CFLAGS="${NEW_CFLAGS}" |
380 |
|
|
export CXXFLAGS="${NEW_CXXFLAGS}" |
381 |
dberkholz |
1.124 |
export FFLAGS="${NEW_FFLAGS}" |
382 |
|
|
export FCFLAGS="${NEW_FCFLAGS}" |
383 |
vapier |
1.36 |
return 0 |
384 |
puggy |
1.29 |
} |
385 |
|
|
|
386 |
azarah |
1.96 |
test-flag-PROG() { |
387 |
|
|
local comp=$1 |
388 |
|
|
local flags="$2" |
389 |
|
|
|
390 |
vapier |
1.152 |
[[ -z ${comp} || -z ${flags} ]] && return 1 |
391 |
azarah |
1.96 |
|
392 |
vapier |
1.152 |
# use -c so we can test the assembler as well |
393 |
azarah |
1.96 |
local PROG=$(tc-get${comp}) |
394 |
vapier |
1.152 |
${PROG} ${flags} -c -o /dev/null -xc /dev/null \ |
395 |
azarah |
1.96 |
> /dev/null 2>&1 |
396 |
|
|
} |
397 |
|
|
|
398 |
vapier |
1.121 |
# @FUNCTION: test-flag-CC |
399 |
|
|
# @USAGE: <flag> |
400 |
|
|
# @DESCRIPTION: |
401 |
|
|
# Returns shell true if <flag> is supported by the C compiler, else returns shell false. |
402 |
azarah |
1.96 |
test-flag-CC() { test-flag-PROG "CC" "$1"; } |
403 |
|
|
|
404 |
vapier |
1.121 |
# @FUNCTION: test-flag-CXX |
405 |
|
|
# @USAGE: <flag> |
406 |
|
|
# @DESCRIPTION: |
407 |
|
|
# Returns shell true if <flag> is supported by the C++ compiler, else returns shell false. |
408 |
azarah |
1.96 |
test-flag-CXX() { test-flag-PROG "CXX" "$1"; } |
409 |
|
|
|
410 |
dberkholz |
1.124 |
# @FUNCTION: test-flag-F77 |
411 |
|
|
# @USAGE: <flag> |
412 |
|
|
# @DESCRIPTION: |
413 |
|
|
# Returns shell true if <flag> is supported by the Fortran 77 compiler, else returns shell false. |
414 |
|
|
test-flag-F77() { test-flag-PROG "F77" "$1"; } |
415 |
|
|
|
416 |
|
|
# @FUNCTION: test-flag-FC |
417 |
|
|
# @USAGE: <flag> |
418 |
|
|
# @DESCRIPTION: |
419 |
|
|
# Returns shell true if <flag> is supported by the Fortran 90 compiler, else returns shell false. |
420 |
|
|
test-flag-FC() { test-flag-PROG "FC" "$1"; } |
421 |
|
|
|
422 |
azarah |
1.99 |
test-flags-PROG() { |
423 |
|
|
local comp=$1 |
424 |
|
|
local flags |
425 |
azarah |
1.96 |
local x |
426 |
azarah |
1.99 |
|
427 |
|
|
shift |
428 |
|
|
|
429 |
vapier |
1.113 |
[[ -z ${comp} ]] && return 1 |
430 |
swegener |
1.101 |
|
431 |
azarah |
1.96 |
for x in "$@" ; do |
432 |
vapier |
1.113 |
test-flag-${comp} "${x}" && flags="${flags}${flags:+ }${x}" |
433 |
azarah |
1.96 |
done |
434 |
|
|
|
435 |
azarah |
1.99 |
echo "${flags}" |
436 |
azarah |
1.96 |
|
437 |
azarah |
1.99 |
# Just bail if we dont have any flags |
438 |
|
|
[[ -n ${flags} ]] |
439 |
azarah |
1.96 |
} |
440 |
|
|
|
441 |
vapier |
1.121 |
# @FUNCTION: test-flags-CC |
442 |
|
|
# @USAGE: <flags> |
443 |
|
|
# @DESCRIPTION: |
444 |
|
|
# Returns shell true if <flags> are supported by the C compiler, else returns shell false. |
445 |
azarah |
1.99 |
test-flags-CC() { test-flags-PROG "CC" "$@"; } |
446 |
|
|
|
447 |
vapier |
1.121 |
# @FUNCTION: test-flags-CXX |
448 |
|
|
# @USAGE: <flags> |
449 |
|
|
# @DESCRIPTION: |
450 |
|
|
# Returns shell true if <flags> are supported by the C++ compiler, else returns shell false. |
451 |
azarah |
1.99 |
test-flags-CXX() { test-flags-PROG "CXX" "$@"; } |
452 |
|
|
|
453 |
dberkholz |
1.124 |
# @FUNCTION: test-flags-F77 |
454 |
|
|
# @USAGE: <flags> |
455 |
|
|
# @DESCRIPTION: |
456 |
|
|
# Returns shell true if <flags> are supported by the Fortran 77 compiler, else returns shell false. |
457 |
|
|
test-flags-F77() { test-flags-PROG "F77" "$@"; } |
458 |
|
|
|
459 |
|
|
# @FUNCTION: test-flags-FC |
460 |
|
|
# @USAGE: <flags> |
461 |
|
|
# @DESCRIPTION: |
462 |
|
|
# Returns shell true if <flags> are supported by the Fortran 90 compiler, else returns shell false. |
463 |
|
|
test-flags-FC() { test-flags-PROG "FC" "$@"; } |
464 |
|
|
|
465 |
vapier |
1.121 |
# @FUNCTION: test-flags |
466 |
|
|
# @USAGE: <flags> |
467 |
|
|
# @DESCRIPTION: |
468 |
azarah |
1.99 |
# Short-hand that should hopefully work for both C and C++ compiler, but |
469 |
azarah |
1.100 |
# its really only present due to the append-flags() abomination. |
470 |
azarah |
1.99 |
test-flags() { test-flags-CC "$@"; } |
471 |
|
|
|
472 |
vapier |
1.121 |
# @FUNCTION: test_version_info |
473 |
|
|
# @USAGE: <version> |
474 |
|
|
# @DESCRIPTION: |
475 |
|
|
# Returns shell true if the current C compiler version matches <version>, else returns shell false. |
476 |
|
|
# Accepts shell globs. |
477 |
agriffis |
1.58 |
test_version_info() { |
478 |
vapier |
1.75 |
if [[ $($(tc-getCC) --version 2>&1) == *$1* ]]; then |
479 |
agriffis |
1.58 |
return 0 |
480 |
|
|
else |
481 |
|
|
return 1 |
482 |
|
|
fi |
483 |
|
|
} |
484 |
|
|
|
485 |
vapier |
1.121 |
# @FUNCTION: strip-unsupported-flags |
486 |
|
|
# @DESCRIPTION: |
487 |
dberkholz |
1.124 |
# Strip {C,CXX,F,FC}FLAGS of any flags not supported by the active toolchain. |
488 |
puggy |
1.29 |
strip-unsupported-flags() { |
489 |
vapier |
1.113 |
export CFLAGS=$(test-flags-CC ${CFLAGS}) |
490 |
|
|
export CXXFLAGS=$(test-flags-CXX ${CXXFLAGS}) |
491 |
dberkholz |
1.124 |
export FFLAGS=$(test-flags-F77 ${FFLAGS}) |
492 |
|
|
export FCFLAGS=$(test-flags-FC ${FCFLAGS}) |
493 |
azarah |
1.8 |
} |
494 |
|
|
|
495 |
vapier |
1.121 |
# @FUNCTION: get-flag |
496 |
|
|
# @USAGE: <flag> |
497 |
|
|
# @DESCRIPTION: |
498 |
|
|
# Find and echo the value for a particular flag. Accepts shell globs. |
499 |
vapier |
1.10 |
get-flag() { |
500 |
agriffis |
1.58 |
local f findflag="$1" |
501 |
|
|
|
502 |
vapier |
1.36 |
# this code looks a little flaky but seems to work for |
503 |
|
|
# everything we want ... |
504 |
|
|
# for example, if CFLAGS="-march=i686": |
505 |
agriffis |
1.58 |
# `get-flag -march` == "-march=i686" |
506 |
|
|
# `get-flag march` == "i686" |
507 |
dberkholz |
1.124 |
for f in ${CFLAGS} ${CXXFLAGS} ${FFLAGS} ${FCFLAGS} ; do |
508 |
vapier |
1.10 |
if [ "${f/${findflag}}" != "${f}" ] ; then |
509 |
agriffis |
1.58 |
printf "%s\n" "${f/-${findflag}=}" |
510 |
vapier |
1.28 |
return 0 |
511 |
vapier |
1.10 |
fi |
512 |
|
|
done |
513 |
vapier |
1.28 |
return 1 |
514 |
joker |
1.16 |
} |
515 |
|
|
|
516 |
vapier |
1.121 |
# @FUNCTION: has_m64 |
517 |
|
|
# @DESCRIPTION: |
518 |
|
|
# This doesn't test if the flag is accepted, it tests if the flag actually |
519 |
|
|
# WORKS. Non-multilib gcc will take both -m32 and -m64. If the flag works |
520 |
|
|
# return code is 0, else the return code is 1. |
521 |
lv |
1.56 |
has_m64() { |
522 |
lv |
1.62 |
# this doesnt test if the flag is accepted, it tests if the flag |
523 |
|
|
# actually -WORKS-. non-multilib gcc will take both -m32 and -m64! |
524 |
|
|
# please dont replace this function with test_flag in some future |
525 |
|
|
# clean-up! |
526 |
swegener |
1.101 |
|
527 |
vapier |
1.72 |
local temp="$(emktemp)" |
528 |
azarah |
1.96 |
echo "int main() { return(0); }" > "${temp}".c |
529 |
kugelfang |
1.74 |
MY_CC=$(tc-getCC) |
530 |
azarah |
1.96 |
${MY_CC/ .*/} -m64 -o "$(emktemp)" "${temp}".c > /dev/null 2>&1 |
531 |
vapier |
1.72 |
local ret=$? |
532 |
azarah |
1.96 |
rm -f "${temp}".c |
533 |
|
|
[[ ${ret} != 1 ]] && return 0 |
534 |
lv |
1.62 |
return 1 |
535 |
lv |
1.56 |
} |
536 |
|
|
|
537 |
vapier |
1.121 |
# @FUNCTION: has_m32 |
538 |
|
|
# @DESCRIPTION: |
539 |
|
|
# This doesn't test if the flag is accepted, it tests if the flag actually |
540 |
|
|
# WORKS. Non-mulilib gcc will take both -m32 and -64. If the flag works return |
541 |
|
|
# code is 0, else return code is 1. |
542 |
lv |
1.56 |
has_m32() { |
543 |
lv |
1.62 |
# this doesnt test if the flag is accepted, it tests if the flag |
544 |
|
|
# actually -WORKS-. non-multilib gcc will take both -m32 and -m64! |
545 |
|
|
# please dont replace this function with test_flag in some future |
546 |
|
|
# clean-up! |
547 |
eradicator |
1.80 |
|
548 |
|
|
[ "$(tc-arch)" = "amd64" ] && has_multilib_profile && return 0 |
549 |
|
|
|
550 |
vapier |
1.95 |
local temp=$(emktemp) |
551 |
|
|
echo "int main() { return(0); }" > "${temp}".c |
552 |
kugelfang |
1.74 |
MY_CC=$(tc-getCC) |
553 |
vapier |
1.95 |
${MY_CC/ .*/} -m32 -o "$(emktemp)" "${temp}".c > /dev/null 2>&1 |
554 |
vapier |
1.72 |
local ret=$? |
555 |
vapier |
1.95 |
rm -f "${temp}".c |
556 |
azarah |
1.96 |
[[ ${ret} != 1 ]] && return 0 |
557 |
lv |
1.62 |
return 1 |
558 |
lv |
1.56 |
} |
559 |
|
|
|
560 |
vapier |
1.121 |
# @FUNCTION: replace-sparc64-flags |
561 |
|
|
# @DESCRIPTION: |
562 |
|
|
# Sets mcpu to v8 and uses the original value as mtune if none specified. |
563 |
vapier |
1.18 |
replace-sparc64-flags() { |
564 |
fmccor |
1.98 |
local SPARC64_CPUS="ultrasparc3 ultrasparc v9" |
565 |
joker |
1.16 |
|
566 |
mr_bones_ |
1.83 |
if [ "${CFLAGS/mtune}" != "${CFLAGS}" ]; then |
567 |
agriffis |
1.58 |
for x in ${SPARC64_CPUS}; do |
568 |
joker |
1.16 |
CFLAGS="${CFLAGS/-mcpu=${x}/-mcpu=v8}" |
569 |
|
|
done |
570 |
mr_bones_ |
1.83 |
else |
571 |
swegener |
1.111 |
for x in ${SPARC64_CPUS}; do |
572 |
joker |
1.16 |
CFLAGS="${CFLAGS/-mcpu=${x}/-mcpu=v8 -mtune=${x}}" |
573 |
|
|
done |
574 |
|
|
fi |
575 |
mr_bones_ |
1.83 |
|
576 |
|
|
if [ "${CXXFLAGS/mtune}" != "${CXXFLAGS}" ]; then |
577 |
agriffis |
1.58 |
for x in ${SPARC64_CPUS}; do |
578 |
joker |
1.16 |
CXXFLAGS="${CXXFLAGS/-mcpu=${x}/-mcpu=v8}" |
579 |
|
|
done |
580 |
|
|
else |
581 |
swegener |
1.111 |
for x in ${SPARC64_CPUS}; do |
582 |
joker |
1.16 |
CXXFLAGS="${CXXFLAGS/-mcpu=${x}/-mcpu=v8 -mtune=${x}}" |
583 |
|
|
done |
584 |
|
|
fi |
585 |
vapier |
1.59 |
|
586 |
|
|
export CFLAGS CXXFLAGS |
587 |
solar |
1.27 |
} |
588 |
|
|
|
589 |
abcd |
1.147 |
# @FUNCTION: append-libs |
590 |
|
|
# @USAGE: <libs> |
591 |
|
|
# @DESCRIPTION: |
592 |
|
|
# Add extra <libs> to the current LIBS. |
593 |
|
|
append-libs() { |
594 |
vapier |
1.158 |
[[ $# -eq 0 ]] && return 0 |
595 |
abcd |
1.147 |
local flag |
596 |
|
|
for flag in "$@"; do |
597 |
|
|
[[ ${flag} == -l* ]] && flag=${flag#-l} |
598 |
|
|
export LIBS="${LIBS} -l${flag}" |
599 |
|
|
done |
600 |
|
|
|
601 |
|
|
return 0 |
602 |
|
|
} |
603 |
|
|
|
604 |
vapier |
1.121 |
# @FUNCTION: append-ldflags |
605 |
|
|
# @USAGE: <flags> |
606 |
|
|
# @DESCRIPTION: |
607 |
|
|
# Add extra <flags> to the current LDFLAGS. |
608 |
solar |
1.27 |
append-ldflags() { |
609 |
vapier |
1.158 |
[[ $# -eq 0 ]] && return 0 |
610 |
flameeyes |
1.123 |
local flag |
611 |
|
|
for flag in "$@"; do |
612 |
|
|
[[ ${flag} == -l* ]] && \ |
613 |
|
|
ewarn "Appending a library link instruction (${flag}); libraries to link to should not be passed through LDFLAGS" |
614 |
|
|
done |
615 |
|
|
|
616 |
vapier |
1.59 |
export LDFLAGS="${LDFLAGS} $*" |
617 |
vapier |
1.28 |
return 0 |
618 |
solar |
1.27 |
} |
619 |
|
|
|
620 |
vapier |
1.121 |
# @FUNCTION: filter-ldflags |
621 |
|
|
# @USAGE: <flags> |
622 |
|
|
# @DESCRIPTION: |
623 |
|
|
# Remove particular <flags> from LDFLAGS. Accepts shell globs. |
624 |
solar |
1.41 |
filter-ldflags() { |
625 |
kevquinn |
1.105 |
_filter-var LDFLAGS "$@" |
626 |
solar |
1.41 |
return 0 |
627 |
|
|
} |
628 |
|
|
|
629 |
vapier |
1.121 |
# @FUNCTION: raw-ldflags |
630 |
vapier |
1.156 |
# @USAGE: [flags] |
631 |
vapier |
1.121 |
# @DESCRIPTION: |
632 |
kevquinn |
1.105 |
# Turn C style ldflags (-Wl,-foo) into straight ldflags - the results |
633 |
|
|
# are suitable for passing directly to 'ld'; note LDFLAGS is usually passed |
634 |
|
|
# to gcc where it needs the '-Wl,'. |
635 |
vapier |
1.156 |
# |
636 |
|
|
# If no flags are specified, then default to ${LDFLAGS}. |
637 |
vapier |
1.102 |
raw-ldflags() { |
638 |
|
|
local x input="$@" |
639 |
|
|
[[ -z ${input} ]] && input=${LDFLAGS} |
640 |
|
|
set -- |
641 |
|
|
for x in ${input} ; do |
642 |
vapier |
1.103 |
x=${x#-Wl,} |
643 |
|
|
set -- "$@" ${x//,/ } |
644 |
vapier |
1.102 |
done |
645 |
|
|
echo "$@" |
646 |
|
|
} |
647 |
|
|
|
648 |
ssuominen |
1.145 |
# @FUNCTION: no-as-needed |
649 |
|
|
# @RETURN: Flag to disable asneeded behavior for use with append-ldflags. |
650 |
|
|
no-as-needed() { |
651 |
|
|
case $($(tc-getLD) -v 2>&1 </dev/null) in |
652 |
|
|
*GNU*) # GNU ld |
653 |
|
|
echo "-Wl,--no-as-needed" ;; |
654 |
|
|
esac |
655 |
|
|
} |
656 |
vapier |
1.113 |
|
657 |
vapier |
1.160 |
fi |