| 1 | # Copyright 1999-2006 Gentoo Foundation |
1 | # Copyright 1999-2007 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/toolchain-funcs.eclass,v 1.63 2006/12/16 10:31:12 vapier Exp $ |
3 | # $Header: /var/cvsroot/gentoo-x86/eclass/toolchain-funcs.eclass,v 1.68 2007/03/15 15:55:59 kevquinn Exp $ |
| 4 | # |
4 | # |
| 5 | # Author: Toolchain Ninjas <toolchain@gentoo.org> |
5 | # Maintainer: Toolchain Ninjas <toolchain@gentoo.org> |
| 6 | # |
6 | # |
| 7 | # This eclass contains (or should) functions to get common info |
7 | # This eclass contains (or should) functions to get common info |
| 8 | # about the toolchain (libc/compiler/binutils/etc...) |
8 | # about the toolchain (libc/compiler/binutils/etc...) |
| 9 | |
9 | |
| 10 | inherit multilib |
10 | inherit multilib |
| … | |
… | |
| 89 | # A simple way to see if we're using a cross-compiler ... |
89 | # A simple way to see if we're using a cross-compiler ... |
| 90 | tc-is-cross-compiler() { |
90 | tc-is-cross-compiler() { |
| 91 | return $([[ ${CBUILD:-${CHOST}} != ${CHOST} ]]) |
91 | return $([[ ${CBUILD:-${CHOST}} != ${CHOST} ]]) |
| 92 | } |
92 | } |
| 93 | |
93 | |
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94 | # See if this toolchain is a softfloat based one. |
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95 | # The possible return values: |
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96 | # - only: the target is always softfloat (never had fpu) |
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97 | # - yes: the target should support softfloat |
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98 | # - no: the target should support hardfloat |
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99 | # This allows us to react differently where packages accept |
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100 | # softfloat flags in the case where support is optional, but |
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101 | # rejects softfloat flags where the target always lacks an fpu. |
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102 | tc-is-softfloat() { |
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103 | case ${CTARGET} in |
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104 | bfin*|h8300*) |
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105 | echo "only" ;; |
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106 | *) |
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107 | [[ ${CTARGET//_/-} == *-softfloat-* ]] \ |
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108 | && echo "yes" \ |
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109 | || echo "no" |
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110 | ;; |
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111 | esac |
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112 | } |
| 94 | |
113 | |
| 95 | # Parse information from CBUILD/CHOST/CTARGET rather than |
114 | # Parse information from CBUILD/CHOST/CTARGET rather than |
| 96 | # use external variables from the profile. |
115 | # use external variables from the profile. |
| 97 | tc-ninja_magic_to_arch() { |
116 | tc-ninja_magic_to_arch() { |
| 98 | ninj() { [[ ${type} == "kern" ]] && echo $1 || echo $2 ; } |
117 | ninj() { [[ ${type} == "kern" ]] && echo $1 || echo $2 ; } |
| … | |
… | |
| 150 | tc-ninja_magic_to_arch kern $@ |
169 | tc-ninja_magic_to_arch kern $@ |
| 151 | } |
170 | } |
| 152 | tc-arch() { |
171 | tc-arch() { |
| 153 | tc-ninja_magic_to_arch portage $@ |
172 | tc-ninja_magic_to_arch portage $@ |
| 154 | } |
173 | } |
| 155 | tc-endian() { |
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| 156 | local host=$1 |
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| 157 | [[ -z ${host} ]] && host=${CTARGET:-${CHOST}} |
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| 158 | host=${host%%-*} |
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| 159 | |
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| 160 | case ${host} in |
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| 161 | alpha*) echo big;; |
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| 162 | arm*b*) echo big;; |
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| 163 | arm*) echo little;; |
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| 164 | cris*) echo little;; |
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| 165 | hppa*) echo big;; |
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| 166 | i?86*) echo little;; |
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| 167 | ia64*) echo little;; |
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| 168 | m68*) echo big;; |
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| 169 | mips*l*) echo little;; |
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| 170 | mips*) echo big;; |
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| 171 | powerpc*) echo big;; |
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| 172 | s390*) echo big;; |
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| 173 | sh*b*) echo big;; |
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| 174 | sh*) echo little;; |
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| 175 | sparc*) echo big;; |
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| 176 | x86_64*) echo little;; |
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| 177 | *) echo wtf;; |
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| 178 | esac |
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| 179 | } |
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| 180 | |
174 | |
| 181 | # Returns the version as by `$CC -dumpversion` |
175 | # Returns the version as by `$CC -dumpversion` |
| 182 | gcc-fullversion() { |
176 | gcc-fullversion() { |
| 183 | $(tc-getCC "$@") -dumpversion |
177 | $(tc-getCC "$@") -dumpversion |
| 184 | } |
178 | } |
| … | |
… | |
| 196 | } |
190 | } |
| 197 | # Returns the Micro version |
191 | # Returns the Micro version |
| 198 | gcc-micro-version() { |
192 | gcc-micro-version() { |
| 199 | gcc-fullversion "$@" | cut -f3 -d. | cut -f1 -d- |
193 | gcc-fullversion "$@" | cut -f3 -d. | cut -f1 -d- |
| 200 | } |
194 | } |
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195 | # Returns the installation directory - internal toolchain |
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196 | # function for use by _gcc-specs-exists (for flag-o-matic). |
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197 | _gcc-install-dir() { |
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198 | echo "$($(tc-getCC) -print-search-dirs 2> /dev/null |\ |
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199 | awk '$1=="install:" {print $2}')" |
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200 | } |
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201 | # Returns true if the indicated specs file exists - internal toolchain |
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202 | # function for use by flag-o-matic. |
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203 | _gcc-specs-exists() { |
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204 | [[ -f $(_gcc-install-dir)/$1 ]] |
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205 | } |
| 201 | |
206 | |
| 202 | # Returns requested gcc specs directive |
207 | # Returns requested gcc specs directive unprocessed - for used by |
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208 | # gcc-specs-directive() |
| 203 | # Note; later specs normally overwrite earlier ones; however if a later |
209 | # Note; later specs normally overwrite earlier ones; however if a later |
| 204 | # spec starts with '+' then it appends. |
210 | # spec starts with '+' then it appends. |
| 205 | # gcc -dumpspecs is parsed first, followed by files listed by "gcc -v" |
211 | # gcc -dumpspecs is parsed first, followed by files listed by "gcc -v" |
| 206 | # as "Reading <file>", in order. |
212 | # as "Reading <file>", in order. Strictly speaking, if there's a |
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213 | # $(gcc_install_dir)/specs, the built-in specs aren't read, however by |
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214 | # the same token anything from 'gcc -dumpspecs' is overridden by |
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215 | # the contents of $(gcc_install_dir)/specs so the result is the |
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216 | # same either way. |
| 207 | gcc-specs-directive() { |
217 | _gcc-specs-directive_raw() { |
| 208 | local cc=$(tc-getCC) |
218 | local cc=$(tc-getCC) |
| 209 | local specfiles=$(LC_ALL=C ${cc} -v 2>&1 | awk '$1=="Reading" {print $NF}') |
219 | local specfiles=$(LC_ALL=C ${cc} -v 2>&1 | awk '$1=="Reading" {print $NF}') |
| 210 | ${cc} -dumpspecs 2> /dev/null | cat - ${specfiles} | awk -v directive=$1 \ |
220 | ${cc} -dumpspecs 2> /dev/null | cat - ${specfiles} | awk -v directive=$1 \ |
| 211 | 'BEGIN { pspec=""; spec=""; outside=1 } |
221 | 'BEGIN { pspec=""; spec=""; outside=1 } |
| 212 | $1=="*"directive":" { pspec=spec; spec=""; outside=0; next } |
222 | $1=="*"directive":" { pspec=spec; spec=""; outside=0; next } |
| 213 | outside || NF==0 || ( substr($1,1,1)=="*" && substr($1,length($1),1)==":" ) { outside=1; next } |
223 | outside || NF==0 || ( substr($1,1,1)=="*" && substr($1,length($1),1)==":" ) { outside=1; next } |
| 214 | spec=="" && substr($0,1,1)=="+" { spec=pspec " " substr($0,2); next } |
224 | spec=="" && substr($0,1,1)=="+" { spec=pspec " " substr($0,2); next } |
| 215 | { spec=spec $0 } |
225 | { spec=spec $0 } |
| 216 | END { print spec }' |
226 | END { print spec }' |
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227 | return 0 |
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228 | } |
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229 | |
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230 | # Return the requested gcc specs directive, with all included |
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231 | # specs expanded. |
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232 | # Note, it does not check for inclusion loops, which cause it |
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233 | # to never finish - but such loops are invalid for gcc and we're |
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234 | # assuming gcc is operational. |
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235 | gcc-specs-directive() { |
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236 | local directive subdname subdirective |
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237 | directive="$(_gcc-specs-directive_raw $1)" |
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238 | while [[ ${directive} == *%\(*\)* ]]; do |
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239 | subdname=${directive/*%\(} |
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240 | subdname=${subdname/\)*} |
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241 | subdirective="$(_gcc-specs-directive_raw ${subdname})" |
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242 | directive="${directive//\%(${subdname})/${subdirective}}" |
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243 | done |
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244 | echo "${directive}" |
| 217 | return 0 |
245 | return 0 |
| 218 | } |
246 | } |
| 219 | |
247 | |
| 220 | # Returns true if gcc sets relro |
248 | # Returns true if gcc sets relro |
| 221 | gcc-specs-relro() { |
249 | gcc-specs-relro() { |
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