| 1 | # Copyright 1999-2005 Gentoo Foundation |
1 | # Copyright 1999-2008 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 1.97 2005/12/08 21:08:48 azarah Exp $ |
3 | # $Header: /var/cvsroot/gentoo-x86/eclass/flag-o-matic.eclass,v 1.124 2008/07/03 05:30:54 dberkholz 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() |
|
|
| 7 | inherit eutils toolchain-funcs multilib |
13 | inherit eutils toolchain-funcs multilib |
| 8 | |
14 | |
| 9 | # |
|
|
| 10 | #### filter-flags <flags> #### |
|
|
| 11 | # Remove particular flags from C[XX]FLAGS |
|
|
| 12 | # Matches only complete flags |
|
|
| 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 <flag> #### |
|
|
| 25 | # Returns "true" if flag is set in C[XX]FLAGS |
|
|
| 26 | # Matches only complete a flag |
|
|
| 27 | # |
|
|
| 28 | #### strip-flags #### |
|
|
| 29 | # Strip C[XX]FLAGS of everything except known |
|
|
| 30 | # good options. |
|
|
| 31 | # |
|
|
| 32 | #### strip-unsupported-flags #### |
|
|
| 33 | # Strip C[XX]FLAGS of any flags not supported by |
|
|
| 34 | # installed version of gcc |
|
|
| 35 | # |
|
|
| 36 | #### get-flag <flag> #### |
|
|
| 37 | # Find and echo the value for a particular flag |
|
|
| 38 | # |
|
|
| 39 | #### replace-sparc64-flags #### |
|
|
| 40 | # Sets mcpu to v8 and uses the original value |
|
|
| 41 | # as mtune if none specified. |
|
|
| 42 | # |
|
|
| 43 | #### filter-mfpmath <math types> #### |
|
|
| 44 | # Remove specified math types from the fpmath specification |
|
|
| 45 | # If the user has -mfpmath=sse,386, running `filter-mfpmath sse` |
|
|
| 46 | # will leave the user with -mfpmath=386 |
|
|
| 47 | # |
|
|
| 48 | #### append-ldflags #### |
|
|
| 49 | # Add extra flags to your current LDFLAGS |
|
|
| 50 | # |
|
|
| 51 | #### filter-ldflags <flags> #### |
|
|
| 52 | # Remove particular flags from LDFLAGS |
|
|
| 53 | # Matches only complete flags |
|
|
| 54 | # |
|
|
| 55 | #### fstack-flags #### |
|
|
| 56 | # hooked function for hardened gcc that appends |
|
|
| 57 | # -fno-stack-protector to {C,CXX,LD}FLAGS |
|
|
| 58 | # when a package is filtering -fstack-protector, -fstack-protector-all |
|
|
| 59 | # notice: modern automatic specs files will also suppress -fstack-protector-all |
|
|
| 60 | # when only -fno-stack-protector is given |
|
|
| 61 | # |
|
|
| 62 | #### bindnow-flags #### |
|
|
| 63 | # Returns the flags to enable "now" binding in the current selected linker. |
|
|
| 64 | # |
|
|
| 65 | ################ DEPRECATED functions ################ |
15 | ################ DEPRECATED functions ################ |
| 66 | # The following are still present to avoid breaking existing |
16 | # The following are still present to avoid breaking existing |
| 67 | # code more than necessary; however they are deprecated. Please |
17 | # code more than necessary; however they are deprecated. Please |
| 68 | # use gcc-specs-* from toolchain-funcs.eclass instead, if you |
18 | # use gcc-specs-* from toolchain-funcs.eclass instead, if you |
| 69 | # need to know which hardened techs are active in the compiler. |
19 | # need to know which hardened techs are active in the compiler. |
| 70 | # See bug #100974 |
20 | # See bug #100974 |
| 71 | # |
21 | # |
| 72 | #### has_hardened #### |
22 | # has_hardened |
| 73 | # Returns true if the compiler has 'Hardened' in its version string, |
23 | # has_pie |
| 74 | # (note; switched-spec vanilla compilers satisfy this condition) or |
24 | # has_pic |
| 75 | # the specs file name contains 'hardened'. |
|
|
| 76 | # |
|
|
| 77 | #### has_pie #### |
|
|
| 78 | # Returns true if the compiler by default or with current CFLAGS |
|
|
| 79 | # builds position-independent code. |
|
|
| 80 | # |
|
|
| 81 | #### has_pic #### |
|
|
| 82 | # Returns true if the compiler by default or with current CFLAGS |
|
|
| 83 | # builds position-independent code. |
|
|
| 84 | # |
|
|
| 85 | #### has_ssp_all #### |
25 | # has_ssp_all |
| 86 | # Returns true if the compiler by default or with current CFLAGS |
26 | # has_ssp |
| 87 | # generates stack smash protections for all functions |
|
|
| 88 | # |
|
|
| 89 | #### has_ssp #### |
|
|
| 90 | # Returns true if the compiler by default or with current CFLAGS |
|
|
| 91 | # generates stack smash protections for most vulnerable functions |
|
|
| 92 | # |
|
|
| 93 | |
27 | |
|
|
28 | |
| 94 | # C[XX]FLAGS that we allow in strip-flags |
29 | # {C,CXX,F,FC}FLAGS that we allow in strip-flags |
|
|
30 | # Note: shell globs and character lists are allowed |
| 95 | setup-allowed-flags() { |
31 | setup-allowed-flags() { |
| 96 | if [[ -z ${ALLOWED_FLAGS} ]] ; then |
32 | if [[ -z ${ALLOWED_FLAGS} ]] ; then |
| 97 | export ALLOWED_FLAGS="-pipe" |
33 | export ALLOWED_FLAGS="-pipe" |
| 98 | export ALLOWED_FLAGS="${ALLOWED_FLAGS} -O -O0 -O1 -O2 -mcpu -march -mtune" |
34 | export ALLOWED_FLAGS="${ALLOWED_FLAGS} -O -O0 -O1 -O2 -mcpu -march -mtune" |
| 99 | export ALLOWED_FLAGS="${ALLOWED_FLAGS} -fstack-protector -fstack-protector-all" |
35 | export ALLOWED_FLAGS="${ALLOWED_FLAGS} -fstack-protector -fstack-protector-all" |
| 100 | export ALLOWED_FLAGS="${ALLOWED_FLAGS} -fbounds-checking -fno-bounds-checking" |
36 | export ALLOWED_FLAGS="${ALLOWED_FLAGS} -fbounds-checking" |
| 101 | export ALLOWED_FLAGS="${ALLOWED_FLAGS} -fno-pie -fno-unit-at-a-time" |
37 | export ALLOWED_FLAGS="${ALLOWED_FLAGS} -fno-PIE -fno-pie -fno-unit-at-a-time" |
| 102 | export ALLOWED_FLAGS="${ALLOWED_FLAGS} -g -g0 -g1 -g2 -g3 -ggdb -ggdb0 -ggdb1 -ggdb2 -ggdb3" |
38 | export ALLOWED_FLAGS="${ALLOWED_FLAGS} -g -g[0-9] -ggdb -ggdb[0-9] -gstabs -gstabs+" |
|
|
39 | export ALLOWED_FLAGS="${ALLOWED_FLAGS} -fno-ident" |
|
|
40 | export ALLOWED_FLAGS="${ALLOWED_FLAGS} -W* -w" |
| 103 | fi |
41 | fi |
| 104 | # allow a bunch of flags that negate features / control ABI |
42 | # allow a bunch of flags that negate features / control ABI |
| 105 | ALLOWED_FLAGS="${ALLOWED_FLAGS} -fno-stack-protector -fno-stack-protector-all" |
43 | ALLOWED_FLAGS="${ALLOWED_FLAGS} -fno-stack-protector -fno-stack-protector-all \ |
|
|
44 | -fno-strict-aliasing -fno-bounds-checking" |
| 106 | ALLOWED_FLAGS="${ALLOWED_FLAGS} -mregparm -mno-app-regs -mapp-regs \ |
45 | ALLOWED_FLAGS="${ALLOWED_FLAGS} -mregparm -mno-app-regs -mapp-regs \ |
| 107 | -mno-mmx -mno-sse -mno-sse2 -mno-sse3 -mno-3dnow \ |
46 | -mno-mmx -mno-sse -mno-sse2 -mno-sse3 -mno-3dnow \ |
| 108 | -mips1 -mips2 -mips3 -mips4 -mips32 -mips64 -mips16 \ |
47 | -mips1 -mips2 -mips3 -mips4 -mips32 -mips64 -mips16 \ |
| 109 | -msoft-float -mno-soft-float -mhard-float -mno-hard-float -mfpu \ |
48 | -msoft-float -mno-soft-float -mhard-float -mno-hard-float -mfpu \ |
| 110 | -mieee -mieee-with-inexact \ |
49 | -mieee -mieee-with-inexact -mschedule \ |
| 111 | -mtls-direct-seg-refs -mno-tls-direct-seg-refs \ |
50 | -mtls-direct-seg-refs -mno-tls-direct-seg-refs \ |
| 112 | -mflat -mno-flat -mno-faster-structs -mfaster-structs \ |
51 | -mflat -mno-flat -mno-faster-structs -mfaster-structs \ |
| 113 | -m32 -m64 -mabi -mlittle-endian -mbig-endian -EL -EB -fPIC \ |
52 | -m32 -m64 -mabi -mlittle-endian -mbig-endian -EL -EB -fPIC \ |
| 114 | -mlive-g0 -mcmodel -mstack-bias -mno-stack-bias" |
53 | -mlive-g0 -mcmodel -mstack-bias -mno-stack-bias \ |
|
|
54 | -msecure-plt -D*" |
| 115 | |
55 | |
| 116 | # C[XX]FLAGS that we are think is ok, but needs testing |
56 | # {C,CXX,F,FC}FLAGS that we are think is ok, but needs testing |
| 117 | # NOTE: currently -Os have issues with gcc3 and K6* arch's |
57 | # NOTE: currently -Os have issues with gcc3 and K6* arch's |
| 118 | export UNSTABLE_FLAGS="-Os -O3 -freorder-blocks -fprefetch-loop-arrays" |
58 | export UNSTABLE_FLAGS="-Os -O3 -freorder-blocks" |
| 119 | return 0 |
59 | return 0 |
| 120 | } |
60 | } |
| 121 | |
61 | |
|
|
62 | # inverted filters for hardened compiler. This is trying to unpick |
|
|
63 | # the hardened compiler defaults. |
|
|
64 | _filter-hardened() { |
|
|
65 | local f |
|
|
66 | for f in "$@" ; do |
|
|
67 | case "${f}" in |
|
|
68 | # Ideally we should only concern ourselves with PIE flags, |
|
|
69 | # not -fPIC or -fpic, but too many places filter -fPIC without |
|
|
70 | # thinking about -fPIE. |
|
|
71 | -fPIC|-fpic|-fPIE|-fpie|-Wl,pie|-pie) |
|
|
72 | gcc-specs-pie || continue |
|
|
73 | is-flagq -nopie || append-flags -nopie;; |
|
|
74 | -fstack-protector) |
|
|
75 | gcc-specs-ssp || continue |
|
|
76 | is-flagq -fno-stack-protector || append-flags -fno-stack-protector;; |
|
|
77 | -fstack-protector-all) |
|
|
78 | gcc-specs-ssp-to-all || continue |
|
|
79 | is-flagq -fno-stack-protector-all || append-flags -fno-stack-protector-all;; |
|
|
80 | esac |
|
|
81 | done |
|
|
82 | } |
|
|
83 | |
|
|
84 | # Remove occurrences of strings from variable given in $1 |
|
|
85 | # Strings removed are matched as globs, so for example |
|
|
86 | # '-O*' would remove -O1, -O2 etc. |
|
|
87 | _filter-var() { |
|
|
88 | local f x VAR VAL |
|
|
89 | declare -a new |
|
|
90 | |
|
|
91 | VAR=$1 |
|
|
92 | shift |
|
|
93 | eval VAL=\${${VAR}} |
|
|
94 | for f in ${VAL}; do |
|
|
95 | for x in "$@"; do |
|
|
96 | # Note this should work with globs like -O* |
|
|
97 | [[ ${f} == ${x} ]] && continue 2 |
|
|
98 | done |
|
|
99 | eval new\[\${\#new\[@]}]=\${f} |
|
|
100 | done |
|
|
101 | eval export ${VAR}=\${new\[*]} |
|
|
102 | } |
|
|
103 | |
|
|
104 | # @FUNCTION: filter-flags |
|
|
105 | # @USAGE: <flags> |
|
|
106 | # @DESCRIPTION: |
|
|
107 | # Remove particular <flags> from {C,CPP,CXX,F,FC}FLAGS. Accepts shell globs. |
| 122 | filter-flags() { |
108 | filter-flags() { |
| 123 | local x f fset |
109 | _filter-hardened "$@" |
| 124 | declare -a new_CFLAGS new_CXXFLAGS |
110 | _filter-var CFLAGS "$@" |
| 125 | |
111 | _filter-var CPPFLAGS "$@" |
| 126 | for x in "$@" ; do |
112 | _filter-var CXXFLAGS "$@" |
| 127 | case "${x}" in |
113 | _filter-var FFLAGS "$@" |
| 128 | -fPIC|-fpic|-fPIE|-fpie|-pie) |
114 | _filter-var FCFLAGS "$@" |
| 129 | append-flags `test_flag -fno-pie`;; |
|
|
| 130 | -fstack-protector|-fstack-protector-all) |
|
|
| 131 | fstack-flags;; |
|
|
| 132 | esac |
|
|
| 133 | done |
|
|
| 134 | |
|
|
| 135 | for fset in CFLAGS CXXFLAGS; do |
|
|
| 136 | # Looping over the flags instead of using a global |
|
|
| 137 | # substitution ensures that we're working with flag atoms. |
|
|
| 138 | # Otherwise globs like -O* have the potential to wipe out the |
|
|
| 139 | # list of flags. |
|
|
| 140 | for f in ${!fset}; do |
|
|
| 141 | for x in "$@"; do |
|
|
| 142 | # Note this should work with globs like -O* |
|
|
| 143 | [[ ${f} == ${x} ]] && continue 2 |
|
|
| 144 | done |
|
|
| 145 | eval new_${fset}\[\${\#new_${fset}\[@]}]=\${f} |
|
|
| 146 | done |
|
|
| 147 | eval export ${fset}=\${new_${fset}\[*]} |
|
|
| 148 | done |
|
|
| 149 | |
|
|
| 150 | return 0 |
115 | return 0 |
| 151 | } |
116 | } |
| 152 | |
117 | |
|
|
118 | # @FUNCTION: filter-lfs-flags |
|
|
119 | # @DESCRIPTION: |
|
|
120 | # Remove flags that enable Large File Support. |
| 153 | filter-lfs-flags() { |
121 | filter-lfs-flags() { |
| 154 | [[ -n $@ ]] && die "filter-lfs-flags takes no arguments" |
122 | [[ -n $@ ]] && die "filter-lfs-flags takes no arguments" |
| 155 | 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 |
| 156 | } |
124 | } |
| 157 | |
125 | |
|
|
126 | # @FUNCTION: append-cppflags |
|
|
127 | # @USAGE: <flags> |
|
|
128 | # @DESCRIPTION: |
|
|
129 | # Add extra <flags> to the current CPPFLAGS. |
|
|
130 | append-cppflags() { |
|
|
131 | [[ -z $* ]] && return 0 |
|
|
132 | export CPPFLAGS="${CPPFLAGS} $*" |
|
|
133 | return 0 |
|
|
134 | } |
|
|
135 | |
|
|
136 | # @FUNCTION: append-fflags |
|
|
137 | # @USAGE: <flags> |
|
|
138 | # @DESCRIPTION: |
|
|
139 | # Add extra <flags> to the current {F,FC}FLAGS. |
|
|
140 | append-fflags() { |
|
|
141 | [[ -z $* ]] && return 0 |
|
|
142 | export FFLAGS="${FFLAGS} $*" |
|
|
143 | export FCFLAGS="${FCFLAGS} $*" |
|
|
144 | return 0 |
|
|
145 | } |
|
|
146 | |
|
|
147 | # @FUNCTION: append-lfs-flags |
|
|
148 | # @DESCRIPTION: |
|
|
149 | # Add flags that enable Large File Support. |
| 158 | append-lfs-flags() { |
150 | append-lfs-flags() { |
| 159 | [[ -n $@ ]] && die "append-lfs-flags takes no arguments" |
151 | [[ -n $@ ]] && die "append-lfs-flags takes no arguments" |
| 160 | append-flags -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE |
152 | append-cppflags -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE |
| 161 | } |
153 | } |
| 162 | |
154 | |
|
|
155 | # @FUNCTION: append-flags |
|
|
156 | # @USAGE: <flags> |
|
|
157 | # @DESCRIPTION: |
|
|
158 | # Add extra <flags> to your current {C,CXX,F,FC}FLAGS. |
| 163 | append-flags() { |
159 | append-flags() { |
| 164 | [[ -z $* ]] && return 0 |
160 | [[ -z $* ]] && return 0 |
| 165 | export CFLAGS="${CFLAGS} $*" |
161 | export CFLAGS="${CFLAGS} $*" |
| 166 | export CXXFLAGS="${CXXFLAGS} $*" |
162 | export CXXFLAGS="${CXXFLAGS} $*" |
| 167 | [ -n "`is-flag -fno-stack-protector`" -o \ |
163 | export FFLAGS="${FFLAGS} $*" |
| 168 | -n "`is-flag -fno-stack-protector-all`" ] && fstack-flags |
164 | export FCFLAGS="${FCFLAGS} $*" |
| 169 | return 0 |
165 | return 0 |
| 170 | } |
166 | } |
| 171 | |
167 | |
|
|
168 | # @FUNCTION: replace-flags |
|
|
169 | # @USAGE: <old> <new> |
|
|
170 | # @DESCRIPTION: |
|
|
171 | # Replace the <old> flag with <new>. Accepts shell globs for <old>. |
| 172 | replace-flags() { |
172 | replace-flags() { |
| 173 | [[ $# != 2 ]] \ |
173 | [[ $# != 2 ]] \ |
| 174 | && echo && eerror "Usage: replace-flags <old flag> <new flag>" \ |
174 | && echo && eerror "Usage: replace-flags <old flag> <new flag>" \ |
| 175 | && die "replace-flags takes 2 arguments, not $#" |
175 | && die "replace-flags takes 2 arguments, not $#" |
| 176 | |
176 | |
| 177 | local f fset |
177 | local f fset |
| 178 | declare -a new_CFLAGS new_CXXFLAGS |
178 | declare -a new_CFLAGS new_CXXFLAGS |
| 179 | |
179 | |
| 180 | for fset in CFLAGS CXXFLAGS; do |
180 | for fset in CFLAGS CXXFLAGS FFLAGS FCFLAGS; do |
| 181 | # Looping over the flags instead of using a global |
181 | # Looping over the flags instead of using a global |
| 182 | # substitution ensures that we're working with flag atoms. |
182 | # substitution ensures that we're working with flag atoms. |
| 183 | # Otherwise globs like -O* have the potential to wipe out the |
183 | # Otherwise globs like -O* have the potential to wipe out the |
| 184 | # list of flags. |
184 | # list of flags. |
| 185 | for f in ${!fset}; do |
185 | for f in ${!fset}; do |
| … | |
… | |
| 191 | done |
191 | done |
| 192 | |
192 | |
| 193 | return 0 |
193 | return 0 |
| 194 | } |
194 | } |
| 195 | |
195 | |
|
|
196 | # @FUNCTION: replace-cpu-flags |
|
|
197 | # @USAGE: <old> <new> |
|
|
198 | # @DESCRIPTION: |
|
|
199 | # Replace cpu flags (like -march/-mcpu/-mtune) that select the <old> cpu |
|
|
200 | # with flags that select the <new> cpu. Accepts shell globs for <old>. |
| 196 | replace-cpu-flags() { |
201 | replace-cpu-flags() { |
| 197 | local newcpu="$#" ; newcpu="${!newcpu}" |
202 | local newcpu="$#" ; newcpu="${!newcpu}" |
| 198 | while [ $# -gt 1 ] ; do |
203 | while [ $# -gt 1 ] ; do |
| 199 | # quote to make sure that no globbing is done (particularly on |
204 | # quote to make sure that no globbing is done (particularly on |
| 200 | # ${oldcpu} prior to calling replace-flags |
205 | # ${oldcpu}) prior to calling replace-flags |
| 201 | replace-flags "-march=${1}" "-march=${newcpu}" |
206 | replace-flags "-march=${1}" "-march=${newcpu}" |
| 202 | replace-flags "-mcpu=${1}" "-mcpu=${newcpu}" |
207 | replace-flags "-mcpu=${1}" "-mcpu=${newcpu}" |
| 203 | replace-flags "-mtune=${1}" "-mtune=${newcpu}" |
208 | replace-flags "-mtune=${1}" "-mtune=${newcpu}" |
| 204 | shift |
209 | shift |
| 205 | done |
210 | done |
| 206 | return 0 |
211 | return 0 |
| 207 | } |
212 | } |
| 208 | |
213 | |
|
|
214 | _is_flagq() { |
|
|
215 | local x |
|
|
216 | for x in ${!1} ; do |
|
|
217 | [[ ${x} == $2 ]] && return 0 |
|
|
218 | done |
|
|
219 | return 1 |
|
|
220 | } |
|
|
221 | |
|
|
222 | # @FUNCTION: is-flagq |
|
|
223 | # @USAGE: <flag> |
|
|
224 | # @DESCRIPTION: |
|
|
225 | # Returns shell true if <flag> is in {C,CXX,F,FC}FLAGS, else returns shell false. Accepts shell globs. |
|
|
226 | is-flagq() { |
|
|
227 | [[ -n $2 ]] && die "Usage: is-flag <flag>" |
|
|
228 | _is_flagq CFLAGS $1 || _is_flagq CXXFLAGS $1 || _is_flagq FFLAGS $1 || _is_flagq FCFLAGS $1 |
|
|
229 | } |
|
|
230 | |
|
|
231 | # @FUNCTION: is-flag |
|
|
232 | # @USAGE: <flag> |
|
|
233 | # @DESCRIPTION: |
|
|
234 | # Echo's "true" if flag is set in {C,CXX,F,FC}FLAGS. Accepts shell globs. |
| 209 | is-flag() { |
235 | is-flag() { |
| 210 | local x |
236 | is-flagq "$@" && echo true |
| 211 | |
|
|
| 212 | for x in ${CFLAGS} ${CXXFLAGS} ; do |
|
|
| 213 | # Note this should work with globs like -mcpu=ultrasparc* |
|
|
| 214 | if [[ ${x} == ${1} ]]; then |
|
|
| 215 | echo true |
|
|
| 216 | return 0 |
|
|
| 217 | fi |
|
|
| 218 | done |
|
|
| 219 | return 1 |
|
|
| 220 | } |
237 | } |
| 221 | |
238 | |
|
|
239 | # @FUNCTION: is-ldflagq |
|
|
240 | # @USAGE: <flag> |
|
|
241 | # @DESCRIPTION: |
|
|
242 | # Returns shell true if <flag> is in LDFLAGS, else returns shell false. Accepts shell globs. |
|
|
243 | is-ldflagq() { |
|
|
244 | [[ -n $2 ]] && die "Usage: is-ldflag <flag>" |
|
|
245 | _is_flagq LDFLAGS $1 |
|
|
246 | } |
|
|
247 | |
|
|
248 | # @FUNCTION: is-ldflag |
|
|
249 | # @USAGE: <flag> |
|
|
250 | # @DESCRIPTION: |
|
|
251 | # Echo's "true" if flag is set in LDFLAGS. Accepts shell globs. |
|
|
252 | is-ldflag() { |
|
|
253 | is-ldflagq "$@" && echo true |
|
|
254 | } |
|
|
255 | |
|
|
256 | # @FUNCTION: filter-mfpmath |
|
|
257 | # @USAGE: <math types> |
|
|
258 | # @DESCRIPTION: |
|
|
259 | # Remove specified math types from the fpmath flag. For example, if the user |
|
|
260 | # has -mfpmath=sse,386, running `filter-mfpmath sse` will leave the user with |
|
|
261 | # -mfpmath=386. |
| 222 | filter-mfpmath() { |
262 | filter-mfpmath() { |
| 223 | local orig_mfpmath new_math prune_math |
263 | local orig_mfpmath new_math prune_math |
| 224 | |
264 | |
| 225 | # save the original -mfpmath flag |
265 | # save the original -mfpmath flag |
| 226 | orig_mfpmath="`get-flag -mfpmath`" |
266 | orig_mfpmath=$(get-flag -mfpmath) |
| 227 | # get the value of the current -mfpmath flag |
267 | # get the value of the current -mfpmath flag |
| 228 | new_math=" `get-flag mfpmath | tr , ' '` " |
268 | new_math=$(get-flag mfpmath) |
|
|
269 | new_math=" ${new_math//,/ } " |
| 229 | # figure out which math values are to be removed |
270 | # figure out which math values are to be removed |
| 230 | prune_math="" |
271 | prune_math="" |
| 231 | for prune_math in "$@" ; do |
272 | for prune_math in "$@" ; do |
| 232 | new_math="${new_math/ ${prune_math} / }" |
273 | new_math=${new_math/ ${prune_math} / } |
| 233 | done |
274 | done |
| 234 | new_math="`echo ${new_math:1:${#new_math}-2} | tr ' ' ,`" |
275 | new_math=$(echo ${new_math}) |
|
|
276 | new_math=${new_math// /,} |
| 235 | |
277 | |
| 236 | if [ -z "${new_math}" ] ; then |
278 | if [[ -z ${new_math} ]] ; then |
| 237 | # if we're removing all user specified math values are |
279 | # if we're removing all user specified math values are |
| 238 | # slated for removal, then we just filter the flag |
280 | # slated for removal, then we just filter the flag |
| 239 | filter-flags ${orig_mfpmath} |
281 | filter-flags ${orig_mfpmath} |
| 240 | else |
282 | else |
| 241 | # if we only want to filter some of the user specified |
283 | # if we only want to filter some of the user specified |
| … | |
… | |
| 243 | replace-flags ${orig_mfpmath} -mfpmath=${new_math} |
285 | replace-flags ${orig_mfpmath} -mfpmath=${new_math} |
| 244 | fi |
286 | fi |
| 245 | return 0 |
287 | return 0 |
| 246 | } |
288 | } |
| 247 | |
289 | |
|
|
290 | # @FUNCTION: strip-flags |
|
|
291 | # @DESCRIPTION: |
|
|
292 | # Strip C[XX]FLAGS of everything except known good/safe flags. |
| 248 | strip-flags() { |
293 | strip-flags() { |
| 249 | local x y flag NEW_CFLAGS NEW_CXXFLAGS |
294 | local x y flag NEW_CFLAGS NEW_CXXFLAGS NEW_FFLAGS NEW_FCFLAGS |
| 250 | |
295 | |
| 251 | setup-allowed-flags |
296 | setup-allowed-flags |
| 252 | |
297 | |
| 253 | local NEW_CFLAGS="" |
298 | local NEW_CFLAGS="" |
| 254 | local NEW_CXXFLAGS="" |
299 | local NEW_CXXFLAGS="" |
|
|
300 | local NEW_FFLAGS="" |
|
|
301 | local NEW_FCFLAGS="" |
| 255 | |
302 | |
| 256 | # Allow unstable C[XX]FLAGS if we are using unstable profile ... |
303 | # Allow unstable C[XX]FLAGS if we are using unstable profile ... |
| 257 | if has ~$(tc-arch) ${ACCEPT_KEYWORDS} ; then |
304 | if has ~$(tc-arch) ${ACCEPT_KEYWORDS} ; then |
| 258 | ALLOWED_FLAGS="${ALLOWED_FLAGS} ${UNSTABLE_FLAGS}" |
305 | ALLOWED_FLAGS="${ALLOWED_FLAGS} ${UNSTABLE_FLAGS}" |
| 259 | fi |
306 | fi |
| … | |
… | |
| 278 | break |
325 | break |
| 279 | fi |
326 | fi |
| 280 | done |
327 | done |
| 281 | done |
328 | done |
| 282 | |
329 | |
|
|
330 | for x in ${FFLAGS}; do |
|
|
331 | for y in ${ALLOWED_FLAGS}; do |
|
|
332 | flag=${x%%=*} |
|
|
333 | if [ "${flag%%${y}}" = "" ] ; then |
|
|
334 | NEW_FFLAGS="${NEW_FFLAGS} ${x}" |
|
|
335 | break |
|
|
336 | fi |
|
|
337 | done |
|
|
338 | done |
|
|
339 | |
|
|
340 | for x in ${FCFLAGS}; do |
|
|
341 | for y in ${ALLOWED_FLAGS}; do |
|
|
342 | flag=${x%%=*} |
|
|
343 | if [ "${flag%%${y}}" = "" ] ; then |
|
|
344 | NEW_FCFLAGS="${NEW_FCFLAGS} ${x}" |
|
|
345 | break |
|
|
346 | fi |
|
|
347 | done |
|
|
348 | done |
|
|
349 | |
| 283 | # In case we filtered out all optimization flags fallback to -O2 |
350 | # In case we filtered out all optimization flags fallback to -O2 |
| 284 | if [ "${CFLAGS/-O}" != "${CFLAGS}" -a "${NEW_CFLAGS/-O}" = "${NEW_CFLAGS}" ]; then |
351 | if [ "${CFLAGS/-O}" != "${CFLAGS}" -a "${NEW_CFLAGS/-O}" = "${NEW_CFLAGS}" ]; then |
| 285 | NEW_CFLAGS="${NEW_CFLAGS} -O2" |
352 | NEW_CFLAGS="${NEW_CFLAGS} -O2" |
| 286 | fi |
353 | fi |
| 287 | if [ "${CXXFLAGS/-O}" != "${CXXFLAGS}" -a "${NEW_CXXFLAGS/-O}" = "${NEW_CXXFLAGS}" ]; then |
354 | if [ "${CXXFLAGS/-O}" != "${CXXFLAGS}" -a "${NEW_CXXFLAGS/-O}" = "${NEW_CXXFLAGS}" ]; then |
| 288 | NEW_CXXFLAGS="${NEW_CXXFLAGS} -O2" |
355 | NEW_CXXFLAGS="${NEW_CXXFLAGS} -O2" |
| 289 | fi |
356 | fi |
|
|
357 | if [ "${FFLAGS/-O}" != "${FFLAGS}" -a "${NEW_FFLAGS/-O}" = "${NEW_FFLAGS}" ]; then |
|
|
358 | NEW_FFLAGS="${NEW_FFLAGS} -O2" |
|
|
359 | fi |
|
|
360 | if [ "${FCFLAGS/-O}" != "${FCFLAGS}" -a "${NEW_FCFLAGS/-O}" = "${NEW_FCFLAGS}" ]; then |
|
|
361 | NEW_FCFLAGS="${NEW_FCFLAGS} -O2" |
|
|
362 | fi |
| 290 | |
363 | |
| 291 | set +f # re-enable pathname expansion |
364 | set +f # re-enable pathname expansion |
| 292 | |
365 | |
| 293 | export CFLAGS="${NEW_CFLAGS}" |
366 | export CFLAGS="${NEW_CFLAGS}" |
| 294 | export CXXFLAGS="${NEW_CXXFLAGS}" |
367 | export CXXFLAGS="${NEW_CXXFLAGS}" |
|
|
368 | export FFLAGS="${NEW_FFLAGS}" |
|
|
369 | export FCFLAGS="${NEW_FCFLAGS}" |
| 295 | return 0 |
370 | return 0 |
| 296 | } |
371 | } |
| 297 | |
372 | |
| 298 | test-flag-PROG() { |
373 | test-flag-PROG() { |
| 299 | local comp=$1 |
374 | local comp=$1 |
| … | |
… | |
| 305 | local PROG=$(tc-get${comp}) |
380 | local PROG=$(tc-get${comp}) |
| 306 | ${PROG} ${flags} -S -o /dev/null -xc /dev/null \ |
381 | ${PROG} ${flags} -S -o /dev/null -xc /dev/null \ |
| 307 | > /dev/null 2>&1 |
382 | > /dev/null 2>&1 |
| 308 | } |
383 | } |
| 309 | |
384 | |
| 310 | # Returns true if C compiler support given flag |
385 | # @FUNCTION: test-flag-CC |
|
|
386 | # @USAGE: <flag> |
|
|
387 | # @DESCRIPTION: |
|
|
388 | # Returns shell true if <flag> is supported by the C compiler, else returns shell false. |
| 311 | test-flag-CC() { test-flag-PROG "CC" "$1"; } |
389 | test-flag-CC() { test-flag-PROG "CC" "$1"; } |
| 312 | |
390 | |
| 313 | # Returns true if C++ compiler support given flag |
391 | # @FUNCTION: test-flag-CXX |
|
|
392 | # @USAGE: <flag> |
|
|
393 | # @DESCRIPTION: |
|
|
394 | # Returns shell true if <flag> is supported by the C++ compiler, else returns shell false. |
| 314 | test-flag-CXX() { test-flag-PROG "CXX" "$1"; } |
395 | test-flag-CXX() { test-flag-PROG "CXX" "$1"; } |
| 315 | |
396 | |
|
|
397 | # @FUNCTION: test-flag-F77 |
|
|
398 | # @USAGE: <flag> |
|
|
399 | # @DESCRIPTION: |
|
|
400 | # Returns shell true if <flag> is supported by the Fortran 77 compiler, else returns shell false. |
|
|
401 | test-flag-F77() { test-flag-PROG "F77" "$1"; } |
|
|
402 | |
|
|
403 | # @FUNCTION: test-flag-FC |
|
|
404 | # @USAGE: <flag> |
|
|
405 | # @DESCRIPTION: |
|
|
406 | # Returns shell true if <flag> is supported by the Fortran 90 compiler, else returns shell false. |
|
|
407 | test-flag-FC() { test-flag-PROG "FC" "$1"; } |
|
|
408 | |
| 316 | test-flags() { |
409 | test-flags-PROG() { |
|
|
410 | local comp=$1 |
|
|
411 | local flags |
| 317 | local x |
412 | local x |
| 318 | |
413 | |
|
|
414 | shift |
|
|
415 | |
|
|
416 | [[ -z ${comp} ]] && return 1 |
|
|
417 | |
|
|
418 | x="" |
| 319 | for x in "$@" ; do |
419 | for x in "$@" ; do |
| 320 | test-flag-CC "${x}" || return 1 |
420 | test-flag-${comp} "${x}" && flags="${flags}${flags:+ }${x}" |
| 321 | done |
421 | done |
| 322 | |
422 | |
| 323 | echo "$@" |
423 | echo "${flags}" |
| 324 | |
424 | |
| 325 | return 0 |
425 | # Just bail if we dont have any flags |
|
|
426 | [[ -n ${flags} ]] |
| 326 | } |
427 | } |
| 327 | |
428 | |
| 328 | # Depriciated, use test-flags() |
429 | # @FUNCTION: test-flags-CC |
|
|
430 | # @USAGE: <flags> |
|
|
431 | # @DESCRIPTION: |
|
|
432 | # Returns shell true if <flags> are supported by the C compiler, else returns shell false. |
|
|
433 | test-flags-CC() { test-flags-PROG "CC" "$@"; } |
|
|
434 | |
|
|
435 | # @FUNCTION: test-flags-CXX |
|
|
436 | # @USAGE: <flags> |
|
|
437 | # @DESCRIPTION: |
|
|
438 | # Returns shell true if <flags> are supported by the C++ compiler, else returns shell false. |
|
|
439 | test-flags-CXX() { test-flags-PROG "CXX" "$@"; } |
|
|
440 | |
|
|
441 | # @FUNCTION: test-flags-F77 |
|
|
442 | # @USAGE: <flags> |
|
|
443 | # @DESCRIPTION: |
|
|
444 | # Returns shell true if <flags> are supported by the Fortran 77 compiler, else returns shell false. |
|
|
445 | test-flags-F77() { test-flags-PROG "F77" "$@"; } |
|
|
446 | |
|
|
447 | # @FUNCTION: test-flags-FC |
|
|
448 | # @USAGE: <flags> |
|
|
449 | # @DESCRIPTION: |
|
|
450 | # Returns shell true if <flags> are supported by the Fortran 90 compiler, else returns shell false. |
|
|
451 | test-flags-FC() { test-flags-PROG "FC" "$@"; } |
|
|
452 | |
|
|
453 | # @FUNCTION: test-flags |
|
|
454 | # @USAGE: <flags> |
|
|
455 | # @DESCRIPTION: |
|
|
456 | # Short-hand that should hopefully work for both C and C++ compiler, but |
|
|
457 | # its really only present due to the append-flags() abomination. |
|
|
458 | test-flags() { test-flags-CC "$@"; } |
|
|
459 | |
|
|
460 | # @FUNCTION: test_flag |
|
|
461 | # @DESCRIPTION: |
|
|
462 | # DEPRICIATED, use test-flags() |
| 329 | test_flag() { |
463 | test_flag() { |
| 330 | addwrite "/dev/stderr" |
|
|
| 331 | ewarn "test_flag: deprecated, please use test-flags()!" >/dev/stderr |
464 | ewarn "test_flag: deprecated, please use test-flags()!" >&2 |
| 332 | |
465 | |
| 333 | test-flags "$@" |
466 | test-flags-CC "$@" |
| 334 | } |
467 | } |
| 335 | |
468 | |
|
|
469 | # @FUNCTION: test_version_info |
|
|
470 | # @USAGE: <version> |
|
|
471 | # @DESCRIPTION: |
|
|
472 | # Returns shell true if the current C compiler version matches <version>, else returns shell false. |
|
|
473 | # Accepts shell globs. |
| 336 | test_version_info() { |
474 | test_version_info() { |
| 337 | if [[ $($(tc-getCC) --version 2>&1) == *$1* ]]; then |
475 | if [[ $($(tc-getCC) --version 2>&1) == *$1* ]]; then |
| 338 | return 0 |
476 | return 0 |
| 339 | else |
477 | else |
| 340 | return 1 |
478 | return 1 |
| 341 | fi |
479 | fi |
| 342 | } |
480 | } |
| 343 | |
481 | |
|
|
482 | # @FUNCTION: strip-unsupported-flags |
|
|
483 | # @DESCRIPTION: |
|
|
484 | # Strip {C,CXX,F,FC}FLAGS of any flags not supported by the active toolchain. |
| 344 | strip-unsupported-flags() { |
485 | strip-unsupported-flags() { |
| 345 | local x NEW_CFLAGS NEW_CXXFLAGS |
486 | export CFLAGS=$(test-flags-CC ${CFLAGS}) |
| 346 | |
487 | export CXXFLAGS=$(test-flags-CXX ${CXXFLAGS}) |
| 347 | for x in ${CFLAGS} ; do |
488 | export FFLAGS=$(test-flags-F77 ${FFLAGS}) |
| 348 | NEW_CFLAGS="${NEW_CFLAGS} $(test-flags ${x})" |
489 | export FCFLAGS=$(test-flags-FC ${FCFLAGS}) |
| 349 | done |
|
|
| 350 | for x in ${CXXFLAGS} ; do |
|
|
| 351 | NEW_CXXFLAGS="${NEW_CXXFLAGS} $(test-flags ${x})" |
|
|
| 352 | done |
|
|
| 353 | |
|
|
| 354 | export CFLAGS=${NEW_CFLAGS} |
|
|
| 355 | export CXXFLAGS=${NEW_CXXFLAGS} |
|
|
| 356 | } |
490 | } |
| 357 | |
491 | |
|
|
492 | # @FUNCTION: get-flag |
|
|
493 | # @USAGE: <flag> |
|
|
494 | # @DESCRIPTION: |
|
|
495 | # Find and echo the value for a particular flag. Accepts shell globs. |
| 358 | get-flag() { |
496 | get-flag() { |
| 359 | local f findflag="$1" |
497 | local f findflag="$1" |
| 360 | |
498 | |
| 361 | # this code looks a little flaky but seems to work for |
499 | # this code looks a little flaky but seems to work for |
| 362 | # everything we want ... |
500 | # everything we want ... |
| 363 | # for example, if CFLAGS="-march=i686": |
501 | # for example, if CFLAGS="-march=i686": |
| 364 | # `get-flag -march` == "-march=i686" |
502 | # `get-flag -march` == "-march=i686" |
| 365 | # `get-flag march` == "i686" |
503 | # `get-flag march` == "i686" |
| 366 | for f in ${CFLAGS} ${CXXFLAGS} ; do |
504 | for f in ${CFLAGS} ${CXXFLAGS} ${FFLAGS} ${FCFLAGS} ; do |
| 367 | if [ "${f/${findflag}}" != "${f}" ] ; then |
505 | if [ "${f/${findflag}}" != "${f}" ] ; then |
| 368 | printf "%s\n" "${f/-${findflag}=}" |
506 | printf "%s\n" "${f/-${findflag}=}" |
| 369 | return 0 |
507 | return 0 |
| 370 | fi |
508 | fi |
| 371 | done |
509 | done |
| 372 | return 1 |
510 | return 1 |
| 373 | } |
511 | } |
| 374 | |
512 | |
|
|
513 | # @FUNCTION: has_hardened |
|
|
514 | # @DESCRIPTION: |
| 375 | # DEPRECATED - use gcc-specs-relro or gcc-specs-now from toolchain-funcs |
515 | # DEPRECATED - use gcc-specs-relro or gcc-specs-now from toolchain-funcs |
| 376 | has_hardened() { |
516 | has_hardened() { |
| 377 | addwrite "/dev/stderr" |
|
|
| 378 | ewarn "has_hardened: deprecated, please use gcc-specs-{relro,now}()!" \ |
517 | ewarn "has_hardened: deprecated, please use gcc-specs-{relro,now}()!" >&2 |
| 379 | >/dev/stderr |
518 | |
| 380 | |
|
|
| 381 | test_version_info Hardened && return 0 |
519 | test_version_info Hardened && return 0 |
| 382 | # The specs file wont exist unless gcc has GCC_SPECS support |
520 | # The specs file wont exist unless gcc has GCC_SPECS support |
| 383 | [[ -f ${GCC_SPECS} && ${GCC_SPECS} != ${GCC_SPECS/hardened/} ]] |
521 | [[ -f ${GCC_SPECS} && ${GCC_SPECS} != ${GCC_SPECS/hardened/} ]] |
| 384 | } |
522 | } |
| 385 | |
523 | |
|
|
524 | # @FUNCTION: has_pic |
|
|
525 | # @DESCRIPTION: |
| 386 | # DEPRECATED - use gcc-specs-pie from toolchain-funcs |
526 | # DEPRECATED - use gcc-specs-pie from toolchain-funcs |
| 387 | # indicate whether PIC is set |
527 | # indicate whether PIC is set |
| 388 | has_pic() { |
528 | has_pic() { |
| 389 | addwrite "/dev/stderr" |
|
|
| 390 | ewarn "has_pic: deprecated, please use gcc-specs-pie()!" >/dev/stderr |
529 | ewarn "has_pic: deprecated, please use gcc-specs-pie()!" >&2 |
| 391 | |
530 | |
| 392 | [[ ${CFLAGS/-fPIC} != ${CFLAGS} || \ |
531 | [[ ${CFLAGS/-fPIC} != ${CFLAGS} || \ |
| 393 | ${CFLAGS/-fpic} != ${CFLAGS} || \ |
532 | ${CFLAGS/-fpic} != ${CFLAGS} ]] || \ |
| 394 | -n $(echo | $(tc-getCC) ${CFLAGS} -E -dM - | grep __PIC__) ]] |
533 | gcc-specs-pie |
| 395 | } |
534 | } |
| 396 | |
535 | |
|
|
536 | # @FUNCTION: has_pie |
|
|
537 | # @DESCRIPTION: |
| 397 | # DEPRECATED - use gcc-specs-pie from toolchain-funcs |
538 | # DEPRECATED - use gcc-specs-pie from toolchain-funcs |
| 398 | # indicate whether PIE is set |
539 | # indicate whether PIE is set |
| 399 | has_pie() { |
540 | has_pie() { |
| 400 | addwrite "/dev/stderr" |
|
|
| 401 | ewarn "has_pie: deprecated, please use gcc-specs-pie()!" >/dev/stderr |
541 | ewarn "has_pie: deprecated, please use gcc-specs-pie()!" >&2 |
| 402 | |
542 | |
| 403 | [[ ${CFLAGS/-fPIE} != ${CFLAGS} || \ |
543 | [[ ${CFLAGS/-fPIE} != ${CFLAGS} || \ |
| 404 | ${CFLAGS/-fpie} != ${CFLAGS} || \ |
544 | ${CFLAGS/-fpie} != ${CFLAGS} ]] || \ |
| 405 | -n $(echo | $(tc-getCC) ${CFLAGS} -E -dM - | grep __PIE__) || \ |
545 | gcc-specs-pie |
| 406 | -n $(echo | $(tc-getCC) ${CFLAGS} -E -dM - | grep __PIC__) ]] |
|
|
| 407 | # test PIC while waiting for specs to be updated to generate __PIE__ |
|
|
| 408 | } |
546 | } |
| 409 | |
547 | |
|
|
548 | # @FUNCTION: has_ssp_all |
|
|
549 | # @DESCRIPTION: |
| 410 | # DEPRECATED - use gcc-specs-ssp from toolchain-funcs |
550 | # DEPRECATED - use gcc-specs-ssp from toolchain-funcs |
| 411 | # indicate whether code for SSP is being generated for all functions |
551 | # indicate whether code for SSP is being generated for all functions |
| 412 | has_ssp_all() { |
552 | has_ssp_all() { |
| 413 | addwrite "/dev/stderr" |
|
|
| 414 | ewarn "has_ssp_all: deprecated, please use gcc-specs-ssp()!" >/dev/stderr |
553 | ewarn "has_ssp_all: deprecated, please use gcc-specs-ssp()!" >&2 |
| 415 | |
554 | |
| 416 | # note; this matches only -fstack-protector-all |
555 | # note; this matches only -fstack-protector-all |
| 417 | [[ ${CFLAGS/-fstack-protector-all} != ${CFLAGS} || \ |
556 | [[ ${CFLAGS/-fstack-protector-all} != ${CFLAGS} || \ |
| 418 | -n $(echo | $(tc-getCC) ${CFLAGS} -E -dM - | grep __SSP_ALL__) ]] || \ |
557 | -n $(echo | $(tc-getCC) ${CFLAGS} -E -dM - | grep __SSP_ALL__) ]] || \ |
| 419 | gcc-specs-ssp |
558 | gcc-specs-ssp-all |
| 420 | } |
559 | } |
| 421 | |
560 | |
|
|
561 | # @FUNCTION: has_ssp |
|
|
562 | # @DESCRIPTION: |
| 422 | # DEPRECATED - use gcc-specs-ssp from toolchain-funcs |
563 | # DEPRECATED - use gcc-specs-ssp from toolchain-funcs |
| 423 | # indicate whether code for SSP is being generated |
564 | # indicate whether code for SSP is being generated |
| 424 | has_ssp() { |
565 | has_ssp() { |
| 425 | addwrite "/dev/stderr" |
|
|
| 426 | ewarn "has_ssp: deprecated, please use gcc-specs-ssp()!" >/dev/stderr |
566 | ewarn "has_ssp: deprecated, please use gcc-specs-ssp()!" >&2 |
| 427 | |
567 | |
| 428 | # note; this matches both -fstack-protector and -fstack-protector-all |
568 | # note; this matches both -fstack-protector and -fstack-protector-all |
| 429 | [[ ${CFLAGS/-fstack-protector} != ${CFLAGS} || \ |
569 | [[ ${CFLAGS/-fstack-protector} != ${CFLAGS} || \ |
| 430 | -n $(echo | $(tc-getCC) ${CFLAGS} -E -dM - | grep __SSP__) ]] || \ |
570 | -n $(echo | $(tc-getCC) ${CFLAGS} -E -dM - | grep __SSP__) ]] || \ |
| 431 | gcc-specs-ssp |
571 | gcc-specs-ssp |
| 432 | } |
572 | } |
| 433 | |
573 | |
|
|
574 | # @FUNCTION: has_m64 |
|
|
575 | # @DESCRIPTION: |
|
|
576 | # This doesn't test if the flag is accepted, it tests if the flag actually |
|
|
577 | # WORKS. Non-multilib gcc will take both -m32 and -m64. If the flag works |
|
|
578 | # return code is 0, else the return code is 1. |
| 434 | has_m64() { |
579 | has_m64() { |
| 435 | # this doesnt test if the flag is accepted, it tests if the flag |
580 | # this doesnt test if the flag is accepted, it tests if the flag |
| 436 | # actually -WORKS-. non-multilib gcc will take both -m32 and -m64! |
581 | # actually -WORKS-. non-multilib gcc will take both -m32 and -m64! |
| 437 | # please dont replace this function with test_flag in some future |
582 | # please dont replace this function with test_flag in some future |
| 438 | # clean-up! |
583 | # clean-up! |
| 439 | |
584 | |
| 440 | local temp="$(emktemp)" |
585 | local temp="$(emktemp)" |
| 441 | echo "int main() { return(0); }" > "${temp}".c |
586 | echo "int main() { return(0); }" > "${temp}".c |
| 442 | MY_CC=$(tc-getCC) |
587 | MY_CC=$(tc-getCC) |
| 443 | ${MY_CC/ .*/} -m64 -o "$(emktemp)" "${temp}".c > /dev/null 2>&1 |
588 | ${MY_CC/ .*/} -m64 -o "$(emktemp)" "${temp}".c > /dev/null 2>&1 |
| 444 | local ret=$? |
589 | local ret=$? |
| 445 | rm -f "${temp}".c |
590 | rm -f "${temp}".c |
| 446 | [[ ${ret} != 1 ]] && return 0 |
591 | [[ ${ret} != 1 ]] && return 0 |
| 447 | return 1 |
592 | return 1 |
| 448 | } |
593 | } |
| 449 | |
594 | |
|
|
595 | # @FUNCTION: has_m32 |
|
|
596 | # @DESCRIPTION: |
|
|
597 | # This doesn't test if the flag is accepted, it tests if the flag actually |
|
|
598 | # WORKS. Non-mulilib gcc will take both -m32 and -64. If the flag works return |
|
|
599 | # code is 0, else return code is 1. |
| 450 | has_m32() { |
600 | has_m32() { |
| 451 | # this doesnt test if the flag is accepted, it tests if the flag |
601 | # this doesnt test if the flag is accepted, it tests if the flag |
| 452 | # actually -WORKS-. non-multilib gcc will take both -m32 and -m64! |
602 | # actually -WORKS-. non-multilib gcc will take both -m32 and -m64! |
| 453 | # please dont replace this function with test_flag in some future |
603 | # please dont replace this function with test_flag in some future |
| 454 | # clean-up! |
604 | # clean-up! |
| … | |
… | |
| 463 | rm -f "${temp}".c |
613 | rm -f "${temp}".c |
| 464 | [[ ${ret} != 1 ]] && return 0 |
614 | [[ ${ret} != 1 ]] && return 0 |
| 465 | return 1 |
615 | return 1 |
| 466 | } |
616 | } |
| 467 | |
617 | |
|
|
618 | # @FUNCTION: replace-sparc64-flags |
|
|
619 | # @DESCRIPTION: |
|
|
620 | # Sets mcpu to v8 and uses the original value as mtune if none specified. |
| 468 | replace-sparc64-flags() { |
621 | replace-sparc64-flags() { |
| 469 | local SPARC64_CPUS="ultrasparc v9" |
622 | local SPARC64_CPUS="ultrasparc3 ultrasparc v9" |
| 470 | |
623 | |
| 471 | if [ "${CFLAGS/mtune}" != "${CFLAGS}" ]; then |
624 | if [ "${CFLAGS/mtune}" != "${CFLAGS}" ]; then |
| 472 | for x in ${SPARC64_CPUS}; do |
625 | for x in ${SPARC64_CPUS}; do |
| 473 | CFLAGS="${CFLAGS/-mcpu=${x}/-mcpu=v8}" |
626 | CFLAGS="${CFLAGS/-mcpu=${x}/-mcpu=v8}" |
| 474 | done |
627 | done |
| 475 | else |
628 | else |
| 476 | for x in ${SPARC64_CPUS}; do |
629 | for x in ${SPARC64_CPUS}; do |
| 477 | CFLAGS="${CFLAGS/-mcpu=${x}/-mcpu=v8 -mtune=${x}}" |
630 | CFLAGS="${CFLAGS/-mcpu=${x}/-mcpu=v8 -mtune=${x}}" |
| 478 | done |
631 | done |
| 479 | fi |
632 | fi |
| 480 | |
633 | |
| 481 | if [ "${CXXFLAGS/mtune}" != "${CXXFLAGS}" ]; then |
634 | if [ "${CXXFLAGS/mtune}" != "${CXXFLAGS}" ]; then |
| 482 | for x in ${SPARC64_CPUS}; do |
635 | for x in ${SPARC64_CPUS}; do |
| 483 | CXXFLAGS="${CXXFLAGS/-mcpu=${x}/-mcpu=v8}" |
636 | CXXFLAGS="${CXXFLAGS/-mcpu=${x}/-mcpu=v8}" |
| 484 | done |
637 | done |
| 485 | else |
638 | else |
| 486 | for x in ${SPARC64_CPUS}; do |
639 | for x in ${SPARC64_CPUS}; do |
| 487 | CXXFLAGS="${CXXFLAGS/-mcpu=${x}/-mcpu=v8 -mtune=${x}}" |
640 | CXXFLAGS="${CXXFLAGS/-mcpu=${x}/-mcpu=v8 -mtune=${x}}" |
| 488 | done |
641 | done |
| 489 | fi |
642 | fi |
| 490 | |
643 | |
| 491 | export CFLAGS CXXFLAGS |
644 | export CFLAGS CXXFLAGS |
| 492 | } |
645 | } |
| 493 | |
646 | |
|
|
647 | # @FUNCTION: append-ldflags |
|
|
648 | # @USAGE: <flags> |
|
|
649 | # @DESCRIPTION: |
|
|
650 | # Add extra <flags> to the current LDFLAGS. |
| 494 | append-ldflags() { |
651 | append-ldflags() { |
|
|
652 | [[ -z $* ]] && return 0 |
|
|
653 | local flag |
|
|
654 | for flag in "$@"; do |
|
|
655 | [[ ${flag} == -l* ]] && \ |
|
|
656 | ewarn "Appending a library link instruction (${flag}); libraries to link to should not be passed through LDFLAGS" |
|
|
657 | done |
|
|
658 | |
| 495 | export LDFLAGS="${LDFLAGS} $*" |
659 | export LDFLAGS="${LDFLAGS} $*" |
| 496 | return 0 |
660 | return 0 |
| 497 | } |
661 | } |
| 498 | |
662 | |
|
|
663 | # @FUNCTION: filter-ldflags |
|
|
664 | # @USAGE: <flags> |
|
|
665 | # @DESCRIPTION: |
|
|
666 | # Remove particular <flags> from LDFLAGS. Accepts shell globs. |
| 499 | filter-ldflags() { |
667 | filter-ldflags() { |
| 500 | local x |
668 | _filter-var LDFLAGS "$@" |
|
|
669 | return 0 |
|
|
670 | } |
| 501 | |
671 | |
| 502 | # we do this fancy spacing stuff so as to not filter |
672 | # @FUNCTION: raw-ldflags |
| 503 | # out part of a flag ... we want flag atoms ! :D |
673 | # @USAGE: <flags> |
| 504 | LDFLAGS=" ${LDFLAGS} " |
674 | # @DESCRIPTION: |
|
|
675 | # Turn C style ldflags (-Wl,-foo) into straight ldflags - the results |
|
|
676 | # are suitable for passing directly to 'ld'; note LDFLAGS is usually passed |
|
|
677 | # to gcc where it needs the '-Wl,'. |
|
|
678 | raw-ldflags() { |
|
|
679 | local x input="$@" |
|
|
680 | [[ -z ${input} ]] && input=${LDFLAGS} |
|
|
681 | set -- |
| 505 | for x in "$@" ; do |
682 | for x in ${input} ; do |
| 506 | LDFLAGS=${LDFLAGS// ${x} / } |
683 | x=${x#-Wl,} |
|
|
684 | set -- "$@" ${x//,/ } |
| 507 | done |
685 | done |
| 508 | [[ -z ${LDFLAGS// } ]] \ |
686 | echo "$@" |
| 509 | && LDFLAGS="" \ |
|
|
| 510 | || LDFLAGS=${LDFLAGS:1:${#LDFLAGS}-2} |
|
|
| 511 | export LDFLAGS |
|
|
| 512 | return 0 |
|
|
| 513 | } |
687 | } |
| 514 | |
688 | |
| 515 | fstack-flags() { |
689 | # @FUNCTION: bindnow-flags |
| 516 | if gcc-specs-ssp; then |
690 | # @RETURN: Returns the flags to enable "now" binding in the current selected linker. |
| 517 | [ -z "`is-flag -fno-stack-protector`" ] && |
691 | # @DESCRIPTION: |
| 518 | export CFLAGS="${CFLAGS} `test_flag -fno-stack-protector`" |
|
|
| 519 | fi |
|
|
| 520 | return 0 |
|
|
| 521 | } |
|
|
| 522 | |
|
|
| 523 | # This is thanks to great work from Paul de Vrieze <gentoo-user@devrieze.net>, |
|
|
| 524 | # bug #9016. Also thanks to Jukka Salmi <salmi@gmx.net> (bug #13907) for more |
|
|
| 525 | # fixes. |
|
|
| 526 | # |
|
|
| 527 | # Export CFLAGS and CXXFLAGS that are compadible with gcc-2.95.3 |
|
|
| 528 | gcc2-flags() { |
|
|
| 529 | if [[ $(tc-arch) == "x86" || $(tc-arch) == "amd64" ]] ; then |
|
|
| 530 | CFLAGS=${CFLAGS//-mtune=/-mcpu=} |
|
|
| 531 | CXXFLAGS=${CXXFLAGS//-mtune=/-mcpu=} |
|
|
| 532 | fi |
|
|
| 533 | |
|
|
| 534 | replace-cpu-flags k6-{2,3} k6 |
|
|
| 535 | replace-cpu-flags athlon{,-{tbird,4,xp,mp}} i686 |
|
|
| 536 | |
|
|
| 537 | replace-cpu-flags pentium-mmx i586 |
|
|
| 538 | replace-cpu-flags pentium{2,3,4} i686 |
|
|
| 539 | |
|
|
| 540 | replace-cpu-flags ev6{7,8} ev6 |
|
|
| 541 | |
|
|
| 542 | export CFLAGS CXXFLAGS |
|
|
| 543 | } |
|
|
| 544 | |
|
|
| 545 | # Gets the flags needed for "NOW" binding |
692 | # DEPRECATED - Gets the flags needed for "NOW" binding |
| 546 | bindnow-flags() { |
693 | bindnow-flags() { |
|
|
694 | ewarn "QA: stop using the bindnow-flags function ... simply drop it from your ebuild" >&2 |
|
|
695 | |
| 547 | case $($(tc-getLD) -v 2>&1 </dev/null) in |
696 | case $($(tc-getLD) -v 2>&1 </dev/null) in |
| 548 | *GNU* | *'with BFD'*) # GNU ld |
697 | *GNU* | *'with BFD'*) # GNU ld |
| 549 | echo "-Wl,-z,now" ;; |
698 | echo "-Wl,-z,now" ;; |
| 550 | *Apple*) # Darwin ld |
699 | *Apple*) # Darwin ld |
| 551 | echo "-bind_at_load" ;; |
700 | echo "-bind_at_load" ;; |
| … | |
… | |
| 556 | echo "-Wl,-z,now" ;; |
705 | echo "-Wl,-z,now" ;; |
| 557 | esac |
706 | esac |
| 558 | ;; |
707 | ;; |
| 559 | esac |
708 | esac |
| 560 | } |
709 | } |
|
|
710 | |
|
|
711 | |
|
|
712 | # Some tests for when we screw with things and want to make |
|
|
713 | # sure we didn't break anything |
|
|
714 | #TESTS() { |
|
|
715 | # CFLAGS="-a -b -c=1" |
|
|
716 | # CXXFLAGS="-x -y -z=2" |
|
|
717 | # LDFLAGS="-l -m -n=3" |
|
|
718 | # |
|
|
719 | # die() { exit 1; } |
|
|
720 | # (is-flag 1 2 3) && die |
|
|
721 | # (is-ldflag 1 2 3) && die |
|
|
722 | # |
|
|
723 | # is-flagq -l && die |
|
|
724 | # is-ldflagq -a && die |
|
|
725 | # is-flagq -a || die |
|
|
726 | # is-flagq -x || die |
|
|
727 | # is-ldflagq -n=* || die |
|
|
728 | # is-ldflagq -n && die |
|
|
729 | # |
|
|
730 | # strip-unsupported-flags |
|
|
731 | # [[ ${CFLAGS} == "-c=1" ]] || die |
|
|
732 | # [[ ${CXXFLAGS} == "-y -z=2" ]] || die |
|
|
733 | # |
|
|
734 | # echo "All tests pass" |
|
|
735 | #} |
|
|
736 | #TESTS |
Parent Directory
| 
Revision Log
| 
Patch