| 1 | # Copyright 1999-2005 Gentoo Foundation |
1 | # Copyright 1999-2012 Gentoo Foundation |
| 2 | # Distributed under the terms of the GNU General Public License v2 |
2 | # Distributed under the terms of the GNU General Public License v2 |
| 3 | # $Header: /var/cvsroot/gentoo-x86/eclass/flag-o-matic.eclass,v 1.106 2006/02/19 23:18:30 vapier Exp $ |
3 | # $Header: /var/cvsroot/gentoo-x86/eclass/flag-o-matic.eclass,v 1.171 2012/05/30 07:59:51 jlec Exp $ |
| 4 | |
4 | |
|
|
5 | # @ECLASS: flag-o-matic.eclass |
|
|
6 | # @MAINTAINER: |
|
|
7 | # toolchain@gentoo.org |
|
|
8 | # @BLURB: common functions to manipulate and query toolchain flags |
|
|
9 | # @DESCRIPTION: |
|
|
10 | # This eclass contains a suite of functions to help developers sanely |
|
|
11 | # and safely manage toolchain flags in their builds. |
| 5 | |
12 | |
| 6 | # need access to emktemp() |
13 | if [[ ${___ECLASS_ONCE_FLAG_O_MATIC} != "recur -_+^+_- spank" ]] ; then |
|
|
14 | ___ECLASS_ONCE_FLAG_O_MATIC="recur -_+^+_- spank" |
|
|
15 | |
| 7 | inherit eutils toolchain-funcs multilib |
16 | inherit eutils toolchain-funcs multilib |
| 8 | |
17 | |
| 9 | # |
18 | # Return all the flag variables that our high level funcs operate on. |
| 10 | #### filter-flags <flags> #### |
19 | all-flag-vars() { |
| 11 | # Remove particular flags from C[XX]FLAGS |
20 | echo {C,CPP,CXX,CCAS,F,FC,LD}FLAGS |
| 12 | # Matches only complete flags |
21 | } |
| 13 | # |
|
|
| 14 | #### append-flags <flags> #### |
|
|
| 15 | # Add extra flags to your current C[XX]FLAGS |
|
|
| 16 | # |
|
|
| 17 | #### replace-flags <orig.flag> <new.flag> ### |
|
|
| 18 | # Replace a flag by another one |
|
|
| 19 | # |
|
|
| 20 | #### replace-cpu-flags <old.cpus> <new.cpu> ### |
|
|
| 21 | # Replace march/mcpu flags that specify <old.cpus> |
|
|
| 22 | # with flags that specify <new.cpu> |
|
|
| 23 | # |
|
|
| 24 | #### is-flag[q] <flag> #### |
|
|
| 25 | # Returns "true" if flag is set in C[XX]FLAGS |
|
|
| 26 | # Matches only complete a flag |
|
|
| 27 | # q version sets return code but doesn't echo |
|
|
| 28 | # |
|
|
| 29 | #### is-ldflag[q] <flag> #### |
|
|
| 30 | # Returns "true" if flag is set in LDFLAGS |
|
|
| 31 | # Matches only complete a flag |
|
|
| 32 | # q version sets return code but doesn't echo |
|
|
| 33 | # |
|
|
| 34 | #### strip-flags #### |
|
|
| 35 | # Strip C[XX]FLAGS of everything except known |
|
|
| 36 | # good options. |
|
|
| 37 | # |
|
|
| 38 | #### strip-unsupported-flags #### |
|
|
| 39 | # Strip C[XX]FLAGS of any flags not supported by |
|
|
| 40 | # installed version of gcc |
|
|
| 41 | # |
|
|
| 42 | #### get-flag <flag> #### |
|
|
| 43 | # Find and echo the value for a particular flag |
|
|
| 44 | # |
|
|
| 45 | #### replace-sparc64-flags #### |
|
|
| 46 | # Sets mcpu to v8 and uses the original value |
|
|
| 47 | # as mtune if none specified. |
|
|
| 48 | # |
|
|
| 49 | #### filter-mfpmath <math types> #### |
|
|
| 50 | # Remove specified math types from the fpmath specification |
|
|
| 51 | # If the user has -mfpmath=sse,386, running `filter-mfpmath sse` |
|
|
| 52 | # will leave the user with -mfpmath=386 |
|
|
| 53 | # |
|
|
| 54 | #### append-ldflags #### |
|
|
| 55 | # Add extra flags to your current LDFLAGS |
|
|
| 56 | # |
|
|
| 57 | #### filter-ldflags <flags> #### |
|
|
| 58 | # Remove particular flags from LDFLAGS |
|
|
| 59 | # Matches only complete flags |
|
|
| 60 | # |
|
|
| 61 | #### bindnow-flags #### |
|
|
| 62 | # Returns the flags to enable "now" binding in the current selected linker. |
|
|
| 63 | # |
|
|
| 64 | ################ DEPRECATED functions ################ |
|
|
| 65 | # The following are still present to avoid breaking existing |
|
|
| 66 | # code more than necessary; however they are deprecated. Please |
|
|
| 67 | # use gcc-specs-* from toolchain-funcs.eclass instead, if you |
|
|
| 68 | # need to know which hardened techs are active in the compiler. |
|
|
| 69 | # See bug #100974 |
|
|
| 70 | # |
|
|
| 71 | #### has_hardened #### |
|
|
| 72 | # Returns true if the compiler has 'Hardened' in its version string, |
|
|
| 73 | # (note; switched-spec vanilla compilers satisfy this condition) or |
|
|
| 74 | # the specs file name contains 'hardened'. |
|
|
| 75 | # |
|
|
| 76 | #### has_pie #### |
|
|
| 77 | # Returns true if the compiler by default or with current CFLAGS |
|
|
| 78 | # builds position-independent code. |
|
|
| 79 | # |
|
|
| 80 | #### has_pic #### |
|
|
| 81 | # Returns true if the compiler by default or with current CFLAGS |
|
|
| 82 | # builds position-independent code. |
|
|
| 83 | # |
|
|
| 84 | #### has_ssp_all #### |
|
|
| 85 | # Returns true if the compiler by default or with current CFLAGS |
|
|
| 86 | # generates stack smash protections for all functions |
|
|
| 87 | # |
|
|
| 88 | #### has_ssp #### |
|
|
| 89 | # Returns true if the compiler by default or with current CFLAGS |
|
|
| 90 | # generates stack smash protections for most vulnerable functions |
|
|
| 91 | # |
|
|
| 92 | |
22 | |
| 93 | # C[XX]FLAGS that we allow in strip-flags |
23 | # {C,CXX,F,FC}FLAGS that we allow in strip-flags |
|
|
24 | # Note: shell globs and character lists are allowed |
| 94 | setup-allowed-flags() { |
25 | setup-allowed-flags() { |
| 95 | if [[ -z ${ALLOWED_FLAGS} ]] ; then |
|
|
| 96 | export ALLOWED_FLAGS="-pipe" |
26 | ALLOWED_FLAGS="-pipe" |
| 97 | export ALLOWED_FLAGS="${ALLOWED_FLAGS} -O -O0 -O1 -O2 -mcpu -march -mtune" |
27 | ALLOWED_FLAGS+=" -O -O1 -O2 -Os -mcpu -march -mtune" |
| 98 | export ALLOWED_FLAGS="${ALLOWED_FLAGS} -fstack-protector -fstack-protector-all" |
28 | ALLOWED_FLAGS+=" -fstack-protector -fstack-protector-all" |
| 99 | export ALLOWED_FLAGS="${ALLOWED_FLAGS} -fbounds-checking -fno-bounds-checking" |
29 | ALLOWED_FLAGS+=" -fbounds-checking -fno-strict-overflow" |
| 100 | export ALLOWED_FLAGS="${ALLOWED_FLAGS} -fno-PIE -fno-pie -fno-unit-at-a-time" |
30 | ALLOWED_FLAGS+=" -fno-PIE -fno-pie -fno-unit-at-a-time" |
| 101 | export ALLOWED_FLAGS="${ALLOWED_FLAGS} -g -g0 -g1 -g2 -g3 -ggdb -ggdb0 -ggdb1 -ggdb2 -ggdb3" |
31 | ALLOWED_FLAGS+=" -g -g[0-9] -ggdb -ggdb[0-9] -gstabs -gstabs+" |
| 102 | fi |
32 | ALLOWED_FLAGS+=" -fno-ident -fpermissive" |
|
|
33 | ALLOWED_FLAGS+=" -W* -w" |
|
|
34 | |
| 103 | # allow a bunch of flags that negate features / control ABI |
35 | # allow a bunch of flags that negate features / control ABI |
| 104 | ALLOWED_FLAGS="${ALLOWED_FLAGS} -fno-stack-protector -fno-stack-protector-all" |
36 | ALLOWED_FLAGS+=" -fno-stack-protector -fno-stack-protector-all \ |
|
|
37 | -fno-strict-aliasing -fno-bounds-checking -fstrict-overflow \ |
|
|
38 | -fno-omit-frame-pointer" |
| 105 | ALLOWED_FLAGS="${ALLOWED_FLAGS} -mregparm -mno-app-regs -mapp-regs \ |
39 | ALLOWED_FLAGS+=" -mregparm -mno-app-regs -mapp-regs -mno-mmx -mno-sse \ |
| 106 | -mno-mmx -mno-sse -mno-sse2 -mno-sse3 -mno-3dnow \ |
40 | -mno-sse2 -mno-sse3 -mno-ssse3 -mno-sse4 -mno-sse4.1 -mno-sse4.2 \ |
|
|
41 | -mno-avx -mno-aes -mno-pclmul -mno-sse4a -mno-3dnow -mno-popcnt \ |
| 107 | -mips1 -mips2 -mips3 -mips4 -mips32 -mips64 -mips16 \ |
42 | -mno-abm -mips1 -mips2 -mips3 -mips4 -mips32 -mips64 -mips16 -mplt \ |
| 108 | -msoft-float -mno-soft-float -mhard-float -mno-hard-float -mfpu \ |
43 | -msoft-float -mno-soft-float -mhard-float -mno-hard-float -mfpu \ |
| 109 | -mieee -mieee-with-inexact \ |
44 | -mieee -mieee-with-inexact -mschedule -mfloat-gprs -mspe -mno-spe \ |
| 110 | -mtls-direct-seg-refs -mno-tls-direct-seg-refs \ |
45 | -mtls-direct-seg-refs -mno-tls-direct-seg-refs -mflat -mno-flat \ |
| 111 | -mflat -mno-flat -mno-faster-structs -mfaster-structs \ |
46 | -mno-faster-structs -mfaster-structs -m32 -m64 -mx32 -mabi \ |
| 112 | -m32 -m64 -mabi -mlittle-endian -mbig-endian -EL -EB -fPIC \ |
47 | -mlittle-endian -mbig-endian -EL -EB -fPIC -mlive-g0 -mcmodel \ |
| 113 | -mlive-g0 -mcmodel -mstack-bias -mno-stack-bias" |
48 | -mstack-bias -mno-stack-bias -msecure-plt -m*-toc -D* -U*" |
| 114 | |
49 | |
| 115 | # C[XX]FLAGS that we are think is ok, but needs testing |
50 | # 4.5 |
| 116 | # NOTE: currently -Os have issues with gcc3 and K6* arch's |
51 | ALLOWED_FLAGS+=" -mno-fma4 -mno-movbe -mno-xop -mno-lwp" |
| 117 | export UNSTABLE_FLAGS="-Os -O3 -freorder-blocks" |
52 | # 4.6 |
|
|
53 | ALLOWED_FLAGS+=" -mno-fsgsbase -mno-rdrnd -mno-f16c -mno-bmi -mno-tbm" |
|
|
54 | |
|
|
55 | export ALLOWED_FLAGS |
| 118 | return 0 |
56 | return 0 |
| 119 | } |
57 | } |
| 120 | |
58 | |
| 121 | # inverted filters for hardened compiler. This is trying to unpick |
59 | # inverted filters for hardened compiler. This is trying to unpick |
| 122 | # the hardened compiler defaults. |
60 | # the hardened compiler defaults. |
| … | |
… | |
| 130 | -fPIC|-fpic|-fPIE|-fpie|-Wl,pie|-pie) |
68 | -fPIC|-fpic|-fPIE|-fpie|-Wl,pie|-pie) |
| 131 | gcc-specs-pie || continue |
69 | gcc-specs-pie || continue |
| 132 | is-flagq -nopie || append-flags -nopie;; |
70 | is-flagq -nopie || append-flags -nopie;; |
| 133 | -fstack-protector) |
71 | -fstack-protector) |
| 134 | gcc-specs-ssp || continue |
72 | gcc-specs-ssp || continue |
| 135 | is-flagq -fno-stack-protector || append-flags -fno-stack-protector;; |
73 | is-flagq -fno-stack-protector || append-flags $(test-flags -fno-stack-protector);; |
| 136 | -fstack-protector-all) |
74 | -fstack-protector-all) |
| 137 | gcc-specs-ssp-to-all || continue |
75 | gcc-specs-ssp-to-all || continue |
| 138 | is-flagq -fno-stack-protector-all || append-flags -fno-stack-protector-all;; |
76 | is-flagq -fno-stack-protector-all || append-flags $(test-flags -fno-stack-protector-all);; |
|
|
77 | -fno-strict-overflow) |
|
|
78 | gcc-specs-nostrict || continue |
|
|
79 | is-flagq -fstrict-overflow || append-flags $(test-flags -fstrict-overflow);; |
| 139 | esac |
80 | esac |
| 140 | done |
81 | done |
| 141 | } |
82 | } |
| 142 | |
83 | |
| 143 | # Remove occurrences of strings from variable given in $1 |
84 | # Remove occurrences of strings from variable given in $1 |
| 144 | # Strings removed are matched as globs, so for example |
85 | # Strings removed are matched as globs, so for example |
| 145 | # '-O*' would remove -O1, -O2 etc. |
86 | # '-O*' would remove -O1, -O2 etc. |
| 146 | _filter-var() { |
87 | _filter-var() { |
| 147 | local f x VAR VAL |
88 | local f x var=$1 new=() |
| 148 | declare -a new |
|
|
| 149 | |
|
|
| 150 | VAR=$1 |
|
|
| 151 | shift |
89 | shift |
| 152 | eval VAL=\${${VAR}} |
90 | |
| 153 | for f in ${VAL}; do |
91 | for f in ${!var} ; do |
| 154 | for x in "$@"; do |
92 | for x in "$@" ; do |
| 155 | # Note this should work with globs like -O* |
93 | # Note this should work with globs like -O* |
| 156 | [[ ${f} == ${x} ]] && continue 2 |
94 | [[ ${f} == ${x} ]] && continue 2 |
| 157 | done |
95 | done |
| 158 | eval new\[\${\#new\[@]}]=\${f} |
96 | new+=( "${f}" ) |
| 159 | done |
97 | done |
| 160 | eval export ${VAR}=\${new\[*]} |
98 | eval export ${var}=\""${new[*]}"\" |
| 161 | } |
99 | } |
| 162 | |
100 | |
|
|
101 | # @FUNCTION: filter-flags |
|
|
102 | # @USAGE: <flags> |
|
|
103 | # @DESCRIPTION: |
|
|
104 | # Remove particular <flags> from {C,CPP,CXX,CCAS,F,FC,LD}FLAGS. Accepts shell globs. |
| 163 | filter-flags() { |
105 | filter-flags() { |
| 164 | _filter-hardened "$@" |
106 | _filter-hardened "$@" |
|
|
107 | local v |
|
|
108 | for v in $(all-flag-vars) ; do |
| 165 | _filter-var CFLAGS "$@" |
109 | _filter-var ${v} "$@" |
| 166 | _filter-var CXXFLAGS "$@" |
110 | done |
| 167 | return 0 |
111 | return 0 |
| 168 | } |
112 | } |
| 169 | |
113 | |
|
|
114 | # @FUNCTION: filter-lfs-flags |
|
|
115 | # @DESCRIPTION: |
|
|
116 | # Remove flags that enable Large File Support. |
| 170 | filter-lfs-flags() { |
117 | filter-lfs-flags() { |
| 171 | [[ -n $@ ]] && die "filter-lfs-flags takes no arguments" |
118 | [[ $# -ne 0 ]] && die "filter-lfs-flags takes no arguments" |
|
|
119 | # http://www.gnu.org/s/libc/manual/html_node/Feature-Test-Macros.html |
|
|
120 | # _LARGEFILE_SOURCE: enable support for new LFS funcs (ftello/etc...) |
|
|
121 | # _LARGEFILE64_SOURCE: enable support for 64bit variants (off64_t/fseeko64/etc...) |
|
|
122 | # _FILE_OFFSET_BITS: default to 64bit variants (off_t is defined as off64_t) |
| 172 | filter-flags -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE |
123 | filter-flags -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE |
| 173 | } |
124 | } |
| 174 | |
125 | |
|
|
126 | # @FUNCTION: filter-ldflags |
|
|
127 | # @USAGE: <flags> |
|
|
128 | # @DESCRIPTION: |
|
|
129 | # Remove particular <flags> from LDFLAGS. Accepts shell globs. |
|
|
130 | filter-ldflags() { |
|
|
131 | _filter-var LDFLAGS "$@" |
|
|
132 | return 0 |
|
|
133 | } |
|
|
134 | |
|
|
135 | # @FUNCTION: append-cppflags |
|
|
136 | # @USAGE: <flags> |
|
|
137 | # @DESCRIPTION: |
|
|
138 | # Add extra <flags> to the current CPPFLAGS. |
|
|
139 | append-cppflags() { |
|
|
140 | [[ $# -eq 0 ]] && return 0 |
|
|
141 | export CPPFLAGS="${CPPFLAGS} $*" |
|
|
142 | return 0 |
|
|
143 | } |
|
|
144 | |
|
|
145 | # @FUNCTION: append-cflags |
|
|
146 | # @USAGE: <flags> |
|
|
147 | # @DESCRIPTION: |
|
|
148 | # Add extra <flags> to the current CFLAGS. |
|
|
149 | append-cflags() { |
|
|
150 | [[ $# -eq 0 ]] && return 0 |
|
|
151 | export CFLAGS=$(test-flags-CC ${CFLAGS} "$@") |
|
|
152 | return 0 |
|
|
153 | } |
|
|
154 | |
|
|
155 | # @FUNCTION: append-cxxflags |
|
|
156 | # @USAGE: <flags> |
|
|
157 | # @DESCRIPTION: |
|
|
158 | # Add extra <flags> to the current CXXFLAGS. |
|
|
159 | append-cxxflags() { |
|
|
160 | [[ $# -eq 0 ]] && return 0 |
|
|
161 | export CXXFLAGS=$(test-flags-CXX ${CXXFLAGS} "$@") |
|
|
162 | return 0 |
|
|
163 | } |
|
|
164 | |
|
|
165 | # @FUNCTION: append-fflags |
|
|
166 | # @USAGE: <flags> |
|
|
167 | # @DESCRIPTION: |
|
|
168 | # Add extra <flags> to the current {F,FC}FLAGS. |
|
|
169 | append-fflags() { |
|
|
170 | [[ $# -eq 0 ]] && return 0 |
|
|
171 | export FFLAGS=$(test-flags-F77 ${FFLAGS} "$@") |
|
|
172 | export FCFLAGS=$(test-flags-FC ${FCFLAGS} "$@") |
|
|
173 | return 0 |
|
|
174 | } |
|
|
175 | |
|
|
176 | # @FUNCTION: append-lfs-flags |
|
|
177 | # @DESCRIPTION: |
|
|
178 | # Add flags that enable Large File Support. |
| 175 | append-lfs-flags() { |
179 | append-lfs-flags() { |
| 176 | [[ -n $@ ]] && die "append-lfs-flags takes no arguments" |
180 | [[ $# -ne 0 ]] && die "append-lfs-flags takes no arguments" |
|
|
181 | # see comments in filter-lfs-flags func for meaning of these |
| 177 | append-flags -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE |
182 | append-cppflags -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE |
| 178 | } |
183 | } |
| 179 | |
184 | |
|
|
185 | # @FUNCTION: append-ldflags |
|
|
186 | # @USAGE: <flags> |
|
|
187 | # @DESCRIPTION: |
|
|
188 | # Add extra <flags> to the current LDFLAGS. |
|
|
189 | append-ldflags() { |
|
|
190 | [[ $# -eq 0 ]] && return 0 |
|
|
191 | local flag |
|
|
192 | for flag in "$@"; do |
|
|
193 | [[ ${flag} == -l* ]] && \ |
|
|
194 | ewarn "Appending a library link instruction (${flag}); libraries to link to should not be passed through LDFLAGS" |
|
|
195 | done |
|
|
196 | |
|
|
197 | export LDFLAGS="${LDFLAGS} $*" |
|
|
198 | return 0 |
|
|
199 | } |
|
|
200 | |
|
|
201 | # @FUNCTION: append-flags |
|
|
202 | # @USAGE: <flags> |
|
|
203 | # @DESCRIPTION: |
|
|
204 | # Add extra <flags> to your current {C,CXX,F,FC}FLAGS. |
| 180 | append-flags() { |
205 | append-flags() { |
| 181 | [[ -z $* ]] && return 0 |
206 | [[ $# -eq 0 ]] && return 0 |
| 182 | export CFLAGS="${CFLAGS} $*" |
207 | case " $* " in |
| 183 | export CXXFLAGS="${CXXFLAGS} $*" |
208 | *' '-[DIU]*) eqawarn 'please use append-cppflags for preprocessor flags' ;; |
|
|
209 | *' '-L*) eqawarn 'please use append-ldflags for linker flags' ;; |
|
|
210 | esac |
|
|
211 | append-cflags "$@" |
|
|
212 | append-cxxflags "$@" |
|
|
213 | append-fflags "$@" |
| 184 | return 0 |
214 | return 0 |
| 185 | } |
215 | } |
| 186 | |
216 | |
|
|
217 | # @FUNCTION: replace-flags |
|
|
218 | # @USAGE: <old> <new> |
|
|
219 | # @DESCRIPTION: |
|
|
220 | # Replace the <old> flag with <new>. Accepts shell globs for <old>. |
| 187 | replace-flags() { |
221 | replace-flags() { |
| 188 | [[ $# != 2 ]] \ |
|
|
| 189 | && echo && eerror "Usage: replace-flags <old flag> <new flag>" \ |
222 | [[ $# != 2 ]] && die "Usage: replace-flags <old flag> <new flag>" |
| 190 | && die "replace-flags takes 2 arguments, not $#" |
|
|
| 191 | |
223 | |
| 192 | local f fset |
224 | local f var new |
| 193 | declare -a new_CFLAGS new_CXXFLAGS |
225 | for var in $(all-flag-vars) ; do |
| 194 | |
|
|
| 195 | for fset in CFLAGS CXXFLAGS; do |
|
|
| 196 | # Looping over the flags instead of using a global |
226 | # Looping over the flags instead of using a global |
| 197 | # substitution ensures that we're working with flag atoms. |
227 | # substitution ensures that we're working with flag atoms. |
| 198 | # Otherwise globs like -O* have the potential to wipe out the |
228 | # Otherwise globs like -O* have the potential to wipe out the |
| 199 | # list of flags. |
229 | # list of flags. |
|
|
230 | new=() |
| 200 | for f in ${!fset}; do |
231 | for f in ${!var} ; do |
| 201 | # Note this should work with globs like -O* |
232 | # Note this should work with globs like -O* |
| 202 | [[ ${f} == ${1} ]] && f=${2} |
233 | [[ ${f} == ${1} ]] && f=${2} |
| 203 | eval new_${fset}\[\${\#new_${fset}\[@]}]=\${f} |
234 | new+=( "${f}" ) |
| 204 | done |
|
|
| 205 | eval export ${fset}=\${new_${fset}\[*]} |
|
|
| 206 | done |
235 | done |
|
|
236 | eval export ${var}=\""${new[*]}"\" |
|
|
237 | done |
| 207 | |
238 | |
| 208 | return 0 |
239 | return 0 |
| 209 | } |
240 | } |
| 210 | |
241 | |
|
|
242 | # @FUNCTION: replace-cpu-flags |
|
|
243 | # @USAGE: <old> <new> |
|
|
244 | # @DESCRIPTION: |
|
|
245 | # Replace cpu flags (like -march/-mcpu/-mtune) that select the <old> cpu |
|
|
246 | # with flags that select the <new> cpu. Accepts shell globs for <old>. |
| 211 | replace-cpu-flags() { |
247 | replace-cpu-flags() { |
| 212 | local newcpu="$#" ; newcpu="${!newcpu}" |
248 | local newcpu="$#" ; newcpu="${!newcpu}" |
| 213 | while [ $# -gt 1 ] ; do |
249 | while [ $# -gt 1 ] ; do |
| 214 | # quote to make sure that no globbing is done (particularly on |
250 | # quote to make sure that no globbing is done (particularly on |
| 215 | # ${oldcpu} prior to calling replace-flags |
251 | # ${oldcpu}) prior to calling replace-flags |
| 216 | replace-flags "-march=${1}" "-march=${newcpu}" |
252 | replace-flags "-march=${1}" "-march=${newcpu}" |
| 217 | replace-flags "-mcpu=${1}" "-mcpu=${newcpu}" |
253 | replace-flags "-mcpu=${1}" "-mcpu=${newcpu}" |
| 218 | replace-flags "-mtune=${1}" "-mtune=${newcpu}" |
254 | replace-flags "-mtune=${1}" "-mtune=${newcpu}" |
| 219 | shift |
255 | shift |
| 220 | done |
256 | done |
| 221 | return 0 |
257 | return 0 |
| 222 | } |
258 | } |
| 223 | |
259 | |
|
|
260 | _is_flagq() { |
|
|
261 | local x |
|
|
262 | for x in ${!1} ; do |
|
|
263 | [[ ${x} == $2 ]] && return 0 |
|
|
264 | done |
|
|
265 | return 1 |
|
|
266 | } |
|
|
267 | |
|
|
268 | # @FUNCTION: is-flagq |
|
|
269 | # @USAGE: <flag> |
|
|
270 | # @DESCRIPTION: |
|
|
271 | # Returns shell true if <flag> is in {C,CXX,F,FC}FLAGS, else returns shell false. Accepts shell globs. |
| 224 | is-flagq() { |
272 | is-flagq() { |
|
|
273 | [[ -n $2 ]] && die "Usage: is-flag <flag>" |
|
|
274 | |
| 225 | local x |
275 | local var |
| 226 | |
276 | for var in $(all-flag-vars) ; do |
| 227 | for x in ${CFLAGS} ${CXXFLAGS} ; do |
277 | _is_flagq ${var} "$1" && return 0 |
| 228 | # Note this should work with globs like -mcpu=ultrasparc* |
|
|
| 229 | if [[ ${x} == ${1} ]]; then |
|
|
| 230 | return 0 |
|
|
| 231 | fi |
|
|
| 232 | done |
278 | done |
| 233 | return 1 |
279 | return 1 |
| 234 | } |
280 | } |
| 235 | |
281 | |
|
|
282 | # @FUNCTION: is-flag |
|
|
283 | # @USAGE: <flag> |
|
|
284 | # @DESCRIPTION: |
|
|
285 | # Echo's "true" if flag is set in {C,CXX,F,FC}FLAGS. Accepts shell globs. |
| 236 | is-flag() { |
286 | is-flag() { |
| 237 | if is-flagq ${1}; then |
287 | is-flagq "$@" && echo true |
| 238 | echo true |
|
|
| 239 | return 0 |
|
|
| 240 | fi |
|
|
| 241 | return 1 |
|
|
| 242 | } |
288 | } |
| 243 | |
289 | |
|
|
290 | # @FUNCTION: is-ldflagq |
|
|
291 | # @USAGE: <flag> |
|
|
292 | # @DESCRIPTION: |
|
|
293 | # Returns shell true if <flag> is in LDFLAGS, else returns shell false. Accepts shell globs. |
| 244 | is-ldflagq() { |
294 | is-ldflagq() { |
| 245 | local x |
295 | [[ -n $2 ]] && die "Usage: is-ldflag <flag>" |
| 246 | |
296 | _is_flagq LDFLAGS $1 |
| 247 | for x in ${LDFLAGS} ; do |
|
|
| 248 | # Note this should work with globs like -mcpu=ultrasparc* |
|
|
| 249 | if [[ ${x} == ${1} ]]; then |
|
|
| 250 | return 0 |
|
|
| 251 | fi |
|
|
| 252 | done |
|
|
| 253 | return 1 |
|
|
| 254 | } |
297 | } |
| 255 | |
298 | |
|
|
299 | # @FUNCTION: is-ldflag |
|
|
300 | # @USAGE: <flag> |
|
|
301 | # @DESCRIPTION: |
|
|
302 | # Echo's "true" if flag is set in LDFLAGS. Accepts shell globs. |
| 256 | is-ldflag() { |
303 | is-ldflag() { |
| 257 | if is-ldflagq ${1}; then |
304 | is-ldflagq "$@" && echo true |
| 258 | echo true |
|
|
| 259 | return 0 |
|
|
| 260 | fi |
|
|
| 261 | return 1 |
|
|
| 262 | } |
305 | } |
| 263 | |
306 | |
|
|
307 | # @FUNCTION: filter-mfpmath |
|
|
308 | # @USAGE: <math types> |
|
|
309 | # @DESCRIPTION: |
|
|
310 | # Remove specified math types from the fpmath flag. For example, if the user |
|
|
311 | # has -mfpmath=sse,386, running `filter-mfpmath sse` will leave the user with |
|
|
312 | # -mfpmath=386. |
| 264 | filter-mfpmath() { |
313 | filter-mfpmath() { |
| 265 | local orig_mfpmath new_math prune_math |
314 | local orig_mfpmath new_math prune_math |
| 266 | |
315 | |
| 267 | # save the original -mfpmath flag |
316 | # save the original -mfpmath flag |
| 268 | orig_mfpmath="`get-flag -mfpmath`" |
317 | orig_mfpmath=$(get-flag -mfpmath) |
| 269 | # get the value of the current -mfpmath flag |
318 | # get the value of the current -mfpmath flag |
| 270 | new_math=" `get-flag mfpmath | tr , ' '` " |
319 | new_math=$(get-flag mfpmath) |
|
|
320 | new_math=" ${new_math//,/ } " |
| 271 | # figure out which math values are to be removed |
321 | # figure out which math values are to be removed |
| 272 | prune_math="" |
322 | prune_math="" |
| 273 | for prune_math in "$@" ; do |
323 | for prune_math in "$@" ; do |
| 274 | new_math="${new_math/ ${prune_math} / }" |
324 | new_math=${new_math/ ${prune_math} / } |
| 275 | done |
325 | done |
| 276 | new_math="`echo ${new_math:1:${#new_math}-2} | tr ' ' ,`" |
326 | new_math=$(echo ${new_math}) |
|
|
327 | new_math=${new_math// /,} |
| 277 | |
328 | |
| 278 | if [ -z "${new_math}" ] ; then |
329 | if [[ -z ${new_math} ]] ; then |
| 279 | # if we're removing all user specified math values are |
330 | # if we're removing all user specified math values are |
| 280 | # slated for removal, then we just filter the flag |
331 | # slated for removal, then we just filter the flag |
| 281 | filter-flags ${orig_mfpmath} |
332 | filter-flags ${orig_mfpmath} |
| 282 | else |
333 | else |
| 283 | # if we only want to filter some of the user specified |
334 | # if we only want to filter some of the user specified |
| … | |
… | |
| 285 | replace-flags ${orig_mfpmath} -mfpmath=${new_math} |
336 | replace-flags ${orig_mfpmath} -mfpmath=${new_math} |
| 286 | fi |
337 | fi |
| 287 | return 0 |
338 | return 0 |
| 288 | } |
339 | } |
| 289 | |
340 | |
|
|
341 | # @FUNCTION: strip-flags |
|
|
342 | # @DESCRIPTION: |
|
|
343 | # Strip C[XX]FLAGS of everything except known good/safe flags. |
| 290 | strip-flags() { |
344 | strip-flags() { |
| 291 | local x y flag NEW_CFLAGS NEW_CXXFLAGS |
345 | local x y var |
| 292 | |
346 | |
| 293 | setup-allowed-flags |
347 | setup-allowed-flags |
| 294 | |
348 | |
| 295 | local NEW_CFLAGS="" |
|
|
| 296 | local NEW_CXXFLAGS="" |
|
|
| 297 | |
|
|
| 298 | # Allow unstable C[XX]FLAGS if we are using unstable profile ... |
|
|
| 299 | if has ~$(tc-arch) ${ACCEPT_KEYWORDS} ; then |
|
|
| 300 | ALLOWED_FLAGS="${ALLOWED_FLAGS} ${UNSTABLE_FLAGS}" |
|
|
| 301 | fi |
|
|
| 302 | |
|
|
| 303 | set -f # disable pathname expansion |
349 | set -f # disable pathname expansion |
| 304 | |
350 | |
| 305 | for x in ${CFLAGS}; do |
351 | for var in $(all-flag-vars) ; do |
|
|
352 | local new=() |
|
|
353 | |
|
|
354 | for x in ${!var} ; do |
|
|
355 | local flag=${x%%=*} |
| 306 | for y in ${ALLOWED_FLAGS}; do |
356 | for y in ${ALLOWED_FLAGS} ; do |
| 307 | flag=${x%%=*} |
|
|
| 308 | if [ "${flag%%${y}}" = "" ] ; then |
357 | if [[ -z ${flag%%${y}} ]] ; then |
| 309 | NEW_CFLAGS="${NEW_CFLAGS} ${x}" |
358 | new+=( "${x}" ) |
| 310 | break |
359 | break |
| 311 | fi |
360 | fi |
| 312 | done |
361 | done |
| 313 | done |
362 | done |
| 314 | |
363 | |
| 315 | for x in ${CXXFLAGS}; do |
|
|
| 316 | for y in ${ALLOWED_FLAGS}; do |
|
|
| 317 | flag=${x%%=*} |
|
|
| 318 | if [ "${flag%%${y}}" = "" ] ; then |
|
|
| 319 | NEW_CXXFLAGS="${NEW_CXXFLAGS} ${x}" |
|
|
| 320 | break |
|
|
| 321 | fi |
|
|
| 322 | done |
|
|
| 323 | done |
|
|
| 324 | |
|
|
| 325 | # In case we filtered out all optimization flags fallback to -O2 |
364 | # In case we filtered out all optimization flags fallback to -O2 |
| 326 | if [ "${CFLAGS/-O}" != "${CFLAGS}" -a "${NEW_CFLAGS/-O}" = "${NEW_CFLAGS}" ]; then |
365 | if _is_flagq ${var} "-O*" && ! _is_flagq new "-O*" ; then |
| 327 | NEW_CFLAGS="${NEW_CFLAGS} -O2" |
366 | new+=( -O2 ) |
| 328 | fi |
367 | fi |
| 329 | if [ "${CXXFLAGS/-O}" != "${CXXFLAGS}" -a "${NEW_CXXFLAGS/-O}" = "${NEW_CXXFLAGS}" ]; then |
368 | |
| 330 | NEW_CXXFLAGS="${NEW_CXXFLAGS} -O2" |
369 | eval export ${var}=\""${new[*]}"\" |
| 331 | fi |
370 | done |
| 332 | |
371 | |
| 333 | set +f # re-enable pathname expansion |
372 | set +f # re-enable pathname expansion |
| 334 | |
373 | |
| 335 | export CFLAGS="${NEW_CFLAGS}" |
|
|
| 336 | export CXXFLAGS="${NEW_CXXFLAGS}" |
|
|
| 337 | return 0 |
374 | return 0 |
| 338 | } |
375 | } |
| 339 | |
376 | |
| 340 | test-flag-PROG() { |
377 | test-flag-PROG() { |
| 341 | local comp=$1 |
378 | local comp=$1 |
| 342 | local flags="$2" |
379 | local flag=$2 |
| 343 | |
380 | |
| 344 | [[ -z ${comp} || -z ${flags} ]] && \ |
381 | [[ -z ${comp} || -z ${flag} ]] && return 1 |
| 345 | return 1 |
|
|
| 346 | |
382 | |
|
|
383 | # use -c so we can test the assembler as well |
| 347 | local PROG=$(tc-get${comp}) |
384 | local PROG=$(tc-get${comp}) |
| 348 | ${PROG} ${flags} -S -o /dev/null -xc /dev/null \ |
385 | ${PROG} "${flag}" -c -o /dev/null -xc /dev/null \ |
| 349 | > /dev/null 2>&1 |
386 | > /dev/null 2>&1 |
| 350 | } |
387 | } |
| 351 | |
388 | |
| 352 | # Returns true if C compiler support given flag |
389 | # @FUNCTION: test-flag-CC |
|
|
390 | # @USAGE: <flag> |
|
|
391 | # @DESCRIPTION: |
|
|
392 | # Returns shell true if <flag> is supported by the C compiler, else returns shell false. |
| 353 | test-flag-CC() { test-flag-PROG "CC" "$1"; } |
393 | test-flag-CC() { test-flag-PROG "CC" "$1"; } |
| 354 | |
394 | |
| 355 | # Returns true if C++ compiler support given flag |
395 | # @FUNCTION: test-flag-CXX |
|
|
396 | # @USAGE: <flag> |
|
|
397 | # @DESCRIPTION: |
|
|
398 | # Returns shell true if <flag> is supported by the C++ compiler, else returns shell false. |
| 356 | test-flag-CXX() { test-flag-PROG "CXX" "$1"; } |
399 | test-flag-CXX() { test-flag-PROG "CXX" "$1"; } |
|
|
400 | |
|
|
401 | # @FUNCTION: test-flag-F77 |
|
|
402 | # @USAGE: <flag> |
|
|
403 | # @DESCRIPTION: |
|
|
404 | # Returns shell true if <flag> is supported by the Fortran 77 compiler, else returns shell false. |
|
|
405 | test-flag-F77() { test-flag-PROG "F77" "$1"; } |
|
|
406 | |
|
|
407 | # @FUNCTION: test-flag-FC |
|
|
408 | # @USAGE: <flag> |
|
|
409 | # @DESCRIPTION: |
|
|
410 | # Returns shell true if <flag> is supported by the Fortran 90 compiler, else returns shell false. |
|
|
411 | test-flag-FC() { test-flag-PROG "FC" "$1"; } |
| 357 | |
412 | |
| 358 | test-flags-PROG() { |
413 | test-flags-PROG() { |
| 359 | local comp=$1 |
414 | local comp=$1 |
| 360 | local flags |
415 | local flags |
| 361 | local x |
416 | local x |
| 362 | |
417 | |
| 363 | shift |
418 | shift |
| 364 | |
419 | |
| 365 | [[ -z ${comp} ]] && \ |
420 | [[ -z ${comp} ]] && return 1 |
| 366 | return 1 |
|
|
| 367 | |
421 | |
| 368 | for x in "$@" ; do |
422 | for x in "$@" ; do |
| 369 | test-flag-${comp} "${x}" && flags="${flags} ${x}" |
423 | test-flag-${comp} "${x}" && flags="${flags}${flags:+ }${x}" |
| 370 | done |
424 | done |
| 371 | |
425 | |
| 372 | echo "${flags}" |
426 | echo "${flags}" |
| 373 | |
427 | |
| 374 | # Just bail if we dont have any flags |
428 | # Just bail if we dont have any flags |
| 375 | [[ -n ${flags} ]] |
429 | [[ -n ${flags} ]] |
| 376 | } |
430 | } |
| 377 | |
431 | |
| 378 | # Returns (echo's) the given flags supported by the C compiler |
432 | # @FUNCTION: test-flags-CC |
|
|
433 | # @USAGE: <flags> |
|
|
434 | # @DESCRIPTION: |
|
|
435 | # Returns shell true if <flags> are supported by the C compiler, else returns shell false. |
| 379 | test-flags-CC() { test-flags-PROG "CC" "$@"; } |
436 | test-flags-CC() { test-flags-PROG "CC" "$@"; } |
| 380 | |
437 | |
| 381 | # Returns (echo's) the given flags supported by the C++ compiler |
438 | # @FUNCTION: test-flags-CXX |
|
|
439 | # @USAGE: <flags> |
|
|
440 | # @DESCRIPTION: |
|
|
441 | # Returns shell true if <flags> are supported by the C++ compiler, else returns shell false. |
| 382 | test-flags-CXX() { test-flags-PROG "CXX" "$@"; } |
442 | test-flags-CXX() { test-flags-PROG "CXX" "$@"; } |
| 383 | |
443 | |
|
|
444 | # @FUNCTION: test-flags-F77 |
|
|
445 | # @USAGE: <flags> |
|
|
446 | # @DESCRIPTION: |
|
|
447 | # Returns shell true if <flags> are supported by the Fortran 77 compiler, else returns shell false. |
|
|
448 | test-flags-F77() { test-flags-PROG "F77" "$@"; } |
|
|
449 | |
|
|
450 | # @FUNCTION: test-flags-FC |
|
|
451 | # @USAGE: <flags> |
|
|
452 | # @DESCRIPTION: |
|
|
453 | # Returns shell true if <flags> are supported by the Fortran 90 compiler, else returns shell false. |
|
|
454 | test-flags-FC() { test-flags-PROG "FC" "$@"; } |
|
|
455 | |
|
|
456 | # @FUNCTION: test-flags |
|
|
457 | # @USAGE: <flags> |
|
|
458 | # @DESCRIPTION: |
| 384 | # Short-hand that should hopefully work for both C and C++ compiler, but |
459 | # Short-hand that should hopefully work for both C and C++ compiler, but |
| 385 | # its really only present due to the append-flags() abomination. |
460 | # its really only present due to the append-flags() abomination. |
| 386 | test-flags() { test-flags-CC "$@"; } |
461 | test-flags() { test-flags-CC "$@"; } |
| 387 | |
462 | |
| 388 | # Depriciated, use test-flags() |
463 | # @FUNCTION: test_version_info |
| 389 | test_flag() { |
464 | # @USAGE: <version> |
| 390 | ewarn "test_flag: deprecated, please use test-flags()!" >&2 |
465 | # @DESCRIPTION: |
| 391 | |
466 | # Returns shell true if the current C compiler version matches <version>, else returns shell false. |
| 392 | test-flags-CC "$@" |
467 | # Accepts shell globs. |
| 393 | } |
|
|
| 394 | |
|
|
| 395 | test_version_info() { |
468 | test_version_info() { |
| 396 | if [[ $($(tc-getCC) --version 2>&1) == *$1* ]]; then |
469 | if [[ $($(tc-getCC) --version 2>&1) == *$1* ]]; then |
| 397 | return 0 |
470 | return 0 |
| 398 | else |
471 | else |
| 399 | return 1 |
472 | return 1 |
| 400 | fi |
473 | fi |
| 401 | } |
474 | } |
| 402 | |
475 | |
|
|
476 | # @FUNCTION: strip-unsupported-flags |
|
|
477 | # @DESCRIPTION: |
|
|
478 | # Strip {C,CXX,F,FC}FLAGS of any flags not supported by the active toolchain. |
| 403 | strip-unsupported-flags() { |
479 | strip-unsupported-flags() { |
| 404 | local x NEW_CFLAGS NEW_CXXFLAGS |
480 | export CFLAGS=$(test-flags-CC ${CFLAGS}) |
| 405 | |
481 | export CXXFLAGS=$(test-flags-CXX ${CXXFLAGS}) |
| 406 | for x in ${CFLAGS} ; do |
482 | export FFLAGS=$(test-flags-F77 ${FFLAGS}) |
| 407 | NEW_CFLAGS="${NEW_CFLAGS} $(test-flags ${x})" |
483 | export FCFLAGS=$(test-flags-FC ${FCFLAGS}) |
| 408 | done |
|
|
| 409 | for x in ${CXXFLAGS} ; do |
|
|
| 410 | NEW_CXXFLAGS="${NEW_CXXFLAGS} $(test-flags ${x})" |
|
|
| 411 | done |
|
|
| 412 | |
|
|
| 413 | export CFLAGS=${NEW_CFLAGS} |
|
|
| 414 | export CXXFLAGS=${NEW_CXXFLAGS} |
|
|
| 415 | } |
484 | } |
| 416 | |
485 | |
|
|
486 | # @FUNCTION: get-flag |
|
|
487 | # @USAGE: <flag> |
|
|
488 | # @DESCRIPTION: |
|
|
489 | # Find and echo the value for a particular flag. Accepts shell globs. |
| 417 | get-flag() { |
490 | get-flag() { |
| 418 | local f findflag="$1" |
491 | local f var findflag="$1" |
| 419 | |
492 | |
| 420 | # this code looks a little flaky but seems to work for |
493 | # this code looks a little flaky but seems to work for |
| 421 | # everything we want ... |
494 | # everything we want ... |
| 422 | # for example, if CFLAGS="-march=i686": |
495 | # for example, if CFLAGS="-march=i686": |
| 423 | # `get-flag -march` == "-march=i686" |
496 | # `get-flag -march` == "-march=i686" |
| 424 | # `get-flag march` == "i686" |
497 | # `get-flag march` == "i686" |
| 425 | for f in ${CFLAGS} ${CXXFLAGS} ; do |
498 | for var in $(all-flag-vars) ; do |
|
|
499 | for f in ${!var} ; do |
| 426 | if [ "${f/${findflag}}" != "${f}" ] ; then |
500 | if [ "${f/${findflag}}" != "${f}" ] ; then |
| 427 | printf "%s\n" "${f/-${findflag}=}" |
501 | printf "%s\n" "${f/-${findflag}=}" |
| 428 | return 0 |
502 | return 0 |
| 429 | fi |
503 | fi |
|
|
504 | done |
| 430 | done |
505 | done |
| 431 | return 1 |
506 | return 1 |
| 432 | } |
507 | } |
| 433 | |
508 | |
| 434 | # DEPRECATED - use gcc-specs-relro or gcc-specs-now from toolchain-funcs |
509 | # @FUNCTION: has_m64 |
| 435 | has_hardened() { |
510 | # @DESCRIPTION: |
| 436 | ewarn "has_hardened: deprecated, please use gcc-specs-{relro,now}()!" >&2 |
511 | # This doesn't test if the flag is accepted, it tests if the flag actually |
| 437 | |
512 | # WORKS. Non-multilib gcc will take both -m32 and -m64. If the flag works |
| 438 | test_version_info Hardened && return 0 |
513 | # return code is 0, else the return code is 1. |
| 439 | # The specs file wont exist unless gcc has GCC_SPECS support |
|
|
| 440 | [[ -f ${GCC_SPECS} && ${GCC_SPECS} != ${GCC_SPECS/hardened/} ]] |
|
|
| 441 | } |
|
|
| 442 | |
|
|
| 443 | # DEPRECATED - use gcc-specs-pie from toolchain-funcs |
|
|
| 444 | # indicate whether PIC is set |
|
|
| 445 | has_pic() { |
|
|
| 446 | ewarn "has_pic: deprecated, please use gcc-specs-pie()!" >&2 |
|
|
| 447 | |
|
|
| 448 | [[ ${CFLAGS/-fPIC} != ${CFLAGS} || \ |
|
|
| 449 | ${CFLAGS/-fpic} != ${CFLAGS} ]] || \ |
|
|
| 450 | gcc-specs-pie |
|
|
| 451 | } |
|
|
| 452 | |
|
|
| 453 | # DEPRECATED - use gcc-specs-pie from toolchain-funcs |
|
|
| 454 | # indicate whether PIE is set |
|
|
| 455 | has_pie() { |
|
|
| 456 | ewarn "has_pie: deprecated, please use gcc-specs-pie()!" >&2 |
|
|
| 457 | |
|
|
| 458 | [[ ${CFLAGS/-fPIE} != ${CFLAGS} || \ |
|
|
| 459 | ${CFLAGS/-fpie} != ${CFLAGS} ]] || \ |
|
|
| 460 | gcc-specs-pie |
|
|
| 461 | } |
|
|
| 462 | |
|
|
| 463 | # DEPRECATED - use gcc-specs-ssp from toolchain-funcs |
|
|
| 464 | # indicate whether code for SSP is being generated for all functions |
|
|
| 465 | has_ssp_all() { |
|
|
| 466 | ewarn "has_ssp_all: deprecated, please use gcc-specs-ssp()!" >&2 |
|
|
| 467 | |
|
|
| 468 | # note; this matches only -fstack-protector-all |
|
|
| 469 | [[ ${CFLAGS/-fstack-protector-all} != ${CFLAGS} || \ |
|
|
| 470 | -n $(echo | $(tc-getCC) ${CFLAGS} -E -dM - | grep __SSP_ALL__) ]] || \ |
|
|
| 471 | gcc-specs-ssp-all |
|
|
| 472 | } |
|
|
| 473 | |
|
|
| 474 | # DEPRECATED - use gcc-specs-ssp from toolchain-funcs |
|
|
| 475 | # indicate whether code for SSP is being generated |
|
|
| 476 | has_ssp() { |
|
|
| 477 | ewarn "has_ssp: deprecated, please use gcc-specs-ssp()!" >&2 |
|
|
| 478 | |
|
|
| 479 | # note; this matches both -fstack-protector and -fstack-protector-all |
|
|
| 480 | [[ ${CFLAGS/-fstack-protector} != ${CFLAGS} || \ |
|
|
| 481 | -n $(echo | $(tc-getCC) ${CFLAGS} -E -dM - | grep __SSP__) ]] || \ |
|
|
| 482 | gcc-specs-ssp |
|
|
| 483 | } |
|
|
| 484 | |
|
|
| 485 | has_m64() { |
514 | has_m64() { |
|
|
515 | eqawarn "${FUNCNAME}: don't use this anymore" |
|
|
516 | |
| 486 | # this doesnt test if the flag is accepted, it tests if the flag |
517 | # this doesnt test if the flag is accepted, it tests if the flag |
| 487 | # actually -WORKS-. non-multilib gcc will take both -m32 and -m64! |
518 | # actually -WORKS-. non-multilib gcc will take both -m32 and -m64! |
| 488 | # please dont replace this function with test_flag in some future |
519 | # please dont replace this function with test_flag in some future |
| 489 | # clean-up! |
520 | # clean-up! |
| 490 | |
521 | |
| … | |
… | |
| 497 | [[ ${ret} != 1 ]] && return 0 |
528 | [[ ${ret} != 1 ]] && return 0 |
| 498 | return 1 |
529 | return 1 |
| 499 | } |
530 | } |
| 500 | |
531 | |
| 501 | has_m32() { |
532 | has_m32() { |
| 502 | # this doesnt test if the flag is accepted, it tests if the flag |
533 | die "${FUNCNAME}: don't use this anymore" |
| 503 | # actually -WORKS-. non-multilib gcc will take both -m32 and -m64! |
|
|
| 504 | # please dont replace this function with test_flag in some future |
|
|
| 505 | # clean-up! |
|
|
| 506 | |
|
|
| 507 | [ "$(tc-arch)" = "amd64" ] && has_multilib_profile && return 0 |
|
|
| 508 | |
|
|
| 509 | local temp=$(emktemp) |
|
|
| 510 | echo "int main() { return(0); }" > "${temp}".c |
|
|
| 511 | MY_CC=$(tc-getCC) |
|
|
| 512 | ${MY_CC/ .*/} -m32 -o "$(emktemp)" "${temp}".c > /dev/null 2>&1 |
|
|
| 513 | local ret=$? |
|
|
| 514 | rm -f "${temp}".c |
|
|
| 515 | [[ ${ret} != 1 ]] && return 0 |
|
|
| 516 | return 1 |
|
|
| 517 | } |
534 | } |
| 518 | |
535 | |
|
|
536 | # @FUNCTION: replace-sparc64-flags |
|
|
537 | # @DESCRIPTION: |
|
|
538 | # Sets mcpu to v8 and uses the original value as mtune if none specified. |
| 519 | replace-sparc64-flags() { |
539 | replace-sparc64-flags() { |
| 520 | local SPARC64_CPUS="ultrasparc3 ultrasparc v9" |
540 | local SPARC64_CPUS="ultrasparc3 ultrasparc v9" |
| 521 | |
541 | |
| 522 | if [ "${CFLAGS/mtune}" != "${CFLAGS}" ]; then |
542 | if [ "${CFLAGS/mtune}" != "${CFLAGS}" ]; then |
| 523 | for x in ${SPARC64_CPUS}; do |
543 | for x in ${SPARC64_CPUS}; do |
| 524 | CFLAGS="${CFLAGS/-mcpu=${x}/-mcpu=v8}" |
544 | CFLAGS="${CFLAGS/-mcpu=${x}/-mcpu=v8}" |
| 525 | done |
545 | done |
| 526 | else |
546 | else |
| 527 | for x in ${SPARC64_CPUS}; do |
547 | for x in ${SPARC64_CPUS}; do |
| 528 | CFLAGS="${CFLAGS/-mcpu=${x}/-mcpu=v8 -mtune=${x}}" |
548 | CFLAGS="${CFLAGS/-mcpu=${x}/-mcpu=v8 -mtune=${x}}" |
| 529 | done |
549 | done |
| 530 | fi |
550 | fi |
| 531 | |
551 | |
| 532 | if [ "${CXXFLAGS/mtune}" != "${CXXFLAGS}" ]; then |
552 | if [ "${CXXFLAGS/mtune}" != "${CXXFLAGS}" ]; then |
| 533 | for x in ${SPARC64_CPUS}; do |
553 | for x in ${SPARC64_CPUS}; do |
| 534 | CXXFLAGS="${CXXFLAGS/-mcpu=${x}/-mcpu=v8}" |
554 | CXXFLAGS="${CXXFLAGS/-mcpu=${x}/-mcpu=v8}" |
| 535 | done |
555 | done |
| 536 | else |
556 | else |
| 537 | for x in ${SPARC64_CPUS}; do |
557 | for x in ${SPARC64_CPUS}; do |
| 538 | CXXFLAGS="${CXXFLAGS/-mcpu=${x}/-mcpu=v8 -mtune=${x}}" |
558 | CXXFLAGS="${CXXFLAGS/-mcpu=${x}/-mcpu=v8 -mtune=${x}}" |
| 539 | done |
559 | done |
| 540 | fi |
560 | fi |
| 541 | |
561 | |
| 542 | export CFLAGS CXXFLAGS |
562 | export CFLAGS CXXFLAGS |
| 543 | } |
563 | } |
| 544 | |
564 | |
|
|
565 | # @FUNCTION: append-libs |
|
|
566 | # @USAGE: <libs> |
|
|
567 | # @DESCRIPTION: |
|
|
568 | # Add extra <libs> to the current LIBS. |
| 545 | append-ldflags() { |
569 | append-libs() { |
| 546 | [[ -z $* ]] && return 0 |
570 | [[ $# -eq 0 ]] && return 0 |
| 547 | export LDFLAGS="${LDFLAGS} $*" |
571 | local flag |
| 548 | return 0 |
572 | for flag in "$@"; do |
| 549 | } |
573 | [[ ${flag} == -l* ]] && flag=${flag#-l} |
|
|
574 | export LIBS="${LIBS} -l${flag}" |
|
|
575 | done |
| 550 | |
576 | |
| 551 | # Remove flags from LDFLAGS - it's up to the ebuild to filter |
|
|
| 552 | # CFLAGS and CXXFLAGS via filter-flags if they need to. |
|
|
| 553 | filter-ldflags() { |
|
|
| 554 | _filter-var LDFLAGS "$@" |
|
|
| 555 | return 0 |
577 | return 0 |
| 556 | } |
578 | } |
| 557 | |
579 | |
|
|
580 | # @FUNCTION: raw-ldflags |
|
|
581 | # @USAGE: [flags] |
|
|
582 | # @DESCRIPTION: |
| 558 | # Turn C style ldflags (-Wl,-foo) into straight ldflags - the results |
583 | # Turn C style ldflags (-Wl,-foo) into straight ldflags - the results |
| 559 | # are suitable for passing directly to 'ld'; note LDFLAGS is usually passed |
584 | # are suitable for passing directly to 'ld'; note LDFLAGS is usually passed |
| 560 | # to gcc where it needs the '-Wl,'. |
585 | # to gcc where it needs the '-Wl,'. |
|
|
586 | # |
|
|
587 | # If no flags are specified, then default to ${LDFLAGS}. |
| 561 | raw-ldflags() { |
588 | raw-ldflags() { |
| 562 | local x input="$@" |
589 | local x input="$@" |
| 563 | [[ -z ${input} ]] && input=${LDFLAGS} |
590 | [[ -z ${input} ]] && input=${LDFLAGS} |
| 564 | set -- |
591 | set -- |
| 565 | for x in ${input} ; do |
592 | for x in ${input} ; do |
| … | |
… | |
| 567 | set -- "$@" ${x//,/ } |
594 | set -- "$@" ${x//,/ } |
| 568 | done |
595 | done |
| 569 | echo "$@" |
596 | echo "$@" |
| 570 | } |
597 | } |
| 571 | |
598 | |
| 572 | # This is thanks to great work from Paul de Vrieze <gentoo-user@devrieze.net>, |
599 | # @FUNCTION: no-as-needed |
| 573 | # bug #9016. Also thanks to Jukka Salmi <salmi@gmx.net> (bug #13907) for more |
600 | # @RETURN: Flag to disable asneeded behavior for use with append-ldflags. |
| 574 | # fixes. |
601 | no-as-needed() { |
| 575 | # |
|
|
| 576 | # Export CFLAGS and CXXFLAGS that are compadible with gcc-2.95.3 |
|
|
| 577 | gcc2-flags() { |
|
|
| 578 | if [[ $(tc-arch) == "x86" || $(tc-arch) == "amd64" ]] ; then |
|
|
| 579 | CFLAGS=${CFLAGS//-mtune=/-mcpu=} |
|
|
| 580 | CXXFLAGS=${CXXFLAGS//-mtune=/-mcpu=} |
|
|
| 581 | fi |
|
|
| 582 | |
|
|
| 583 | replace-cpu-flags k6-{2,3} k6 |
|
|
| 584 | replace-cpu-flags athlon{,-{tbird,4,xp,mp}} i686 |
|
|
| 585 | |
|
|
| 586 | replace-cpu-flags pentium-mmx i586 |
|
|
| 587 | replace-cpu-flags pentium{2,3,4} i686 |
|
|
| 588 | |
|
|
| 589 | replace-cpu-flags ev6{7,8} ev6 |
|
|
| 590 | |
|
|
| 591 | export CFLAGS CXXFLAGS |
|
|
| 592 | } |
|
|
| 593 | |
|
|
| 594 | # Gets the flags needed for "NOW" binding |
|
|
| 595 | bindnow-flags() { |
|
|
| 596 | case $($(tc-getLD) -v 2>&1 </dev/null) in |
602 | case $($(tc-getLD) -v 2>&1 </dev/null) in |
| 597 | *GNU* | *'with BFD'*) # GNU ld |
603 | *GNU*) # GNU ld |
| 598 | echo "-Wl,-z,now" ;; |
604 | echo "-Wl,--no-as-needed" ;; |
| 599 | *Apple*) # Darwin ld |
|
|
| 600 | echo "-bind_at_load" ;; |
|
|
| 601 | *) |
|
|
| 602 | # Some linkers just recognize -V instead of -v |
|
|
| 603 | case $($(tc-getLD) -V 2>&1 </dev/null) in |
|
|
| 604 | *Solaris*) # Solaris accept almost the same GNU options |
|
|
| 605 | echo "-Wl,-z,now" ;; |
|
|
| 606 | esac |
|
|
| 607 | ;; |
|
|
| 608 | esac |
605 | esac |
| 609 | } |
606 | } |
|
|
607 | |
|
|
608 | fi |
Parent Directory
| 
Revision Log
| 
Patch