1 | # Copyright 1999-2004 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 1.20 2005/01/11 01:07:49 vapier Exp $ |
3 | # $Header: /var/cvsroot/gentoo-x86/eclass/toolchain-funcs.eclass,v 1.73 2007/07/22 19:59:48 vapier Exp $ |
4 | # |
4 | # |
5 | # Author: Toolchain Ninjas <ninjas@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 eutils |
10 | ___ECLASS_RECUR_TOOLCHAIN_FUNCS="yes" |
11 | |
11 | [[ -z ${___ECLASS_RECUR_MULTILIB} ]] && inherit multilib |
12 | ECLASS=toolchain-funcs |
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13 | INHERITED="$INHERITED $ECLASS" |
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14 | |
12 | |
15 | DESCRIPTION="Based on the ${ECLASS} eclass" |
13 | DESCRIPTION="Based on the ${ECLASS} eclass" |
16 | |
14 | |
17 | tc-getPROG() { |
15 | tc-getPROG() { |
18 | local var=$1 |
16 | local var=$1 |
… | |
… | |
21 | if [[ -n ${!var} ]] ; then |
19 | if [[ -n ${!var} ]] ; then |
22 | echo "${!var}" |
20 | echo "${!var}" |
23 | return 0 |
21 | return 0 |
24 | fi |
22 | fi |
25 | |
23 | |
26 | if [[ -n ${CHOST} ]] ; then |
24 | local search= |
27 | local search=$(type -p "${CHOST}-${prog}") |
25 | [[ -n $3 ]] && search=$(type -p "$3-${prog}") |
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26 | [[ -z ${search} && -n ${CHOST} ]] && search=$(type -p "${CHOST}-${prog}") |
28 | [[ -n ${search} ]] && prog=${search##*/} |
27 | [[ -n ${search} ]] && prog=${search##*/} |
29 | fi |
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30 | |
28 | |
31 | export ${var}=${prog} |
29 | export ${var}=${prog} |
32 | echo "${!var}" |
30 | echo "${!var}" |
33 | } |
31 | } |
34 | |
32 | |
35 | # Returns the name of the archiver |
33 | # Returns the name of the archiver |
36 | tc-getAR() { tc-getPROG AR ar; } |
34 | tc-getAR() { tc-getPROG AR ar "$@"; } |
37 | # Returns the name of the assembler |
35 | # Returns the name of the assembler |
38 | tc-getAS() { tc-getPROG AS as; } |
36 | tc-getAS() { tc-getPROG AS as "$@"; } |
39 | # Returns the name of the C compiler |
37 | # Returns the name of the C compiler |
40 | tc-getCC() { tc-getPROG CC gcc; } |
38 | tc-getCC() { tc-getPROG CC gcc "$@"; } |
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39 | # Returns the name of the C preprocessor |
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40 | tc-getCPP() { tc-getPROG CPP cpp "$@"; } |
41 | # Returns the name of the C++ compiler |
41 | # Returns the name of the C++ compiler |
42 | tc-getCXX() { tc-getPROG CXX g++; } |
42 | tc-getCXX() { tc-getPROG CXX g++ "$@"; } |
43 | # Returns the name of the linker |
43 | # Returns the name of the linker |
44 | tc-getLD() { tc-getPROG LD ld; } |
44 | tc-getLD() { tc-getPROG LD ld "$@"; } |
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45 | # Returns the name of the strip prog |
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46 | tc-getSTRIP() { tc-getPROG STRIP strip "$@"; } |
45 | # Returns the name of the symbol/object thingy |
47 | # Returns the name of the symbol/object thingy |
46 | tc-getNM() { tc-getPROG NM nm; } |
48 | tc-getNM() { tc-getPROG NM nm "$@"; } |
47 | # Returns the name of the archiver indexer |
49 | # Returns the name of the archiver indexer |
48 | tc-getRANLIB() { tc-getPROG RANLIB ranlib; } |
50 | tc-getRANLIB() { tc-getPROG RANLIB ranlib "$@"; } |
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51 | # Returns the name of the fortran 77 compiler |
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52 | tc-getF77() { tc-getPROG F77 f77 "$@"; } |
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53 | # Returns the name of the fortran 90 compiler |
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54 | tc-getF90() { tc-getPROG F90 gfortran "$@"; } |
49 | # Returns the name of the fortran compiler |
55 | # Returns the name of the fortran compiler |
50 | tc-getF77() { tc-getPROG F77 f77; } |
56 | tc-getFORTRAN() { tc-getPROG FORTRAN gfortran "$@"; } |
51 | # Returns the name of the java compiler |
57 | # Returns the name of the java compiler |
52 | tc-getGCJ() { tc-getPROG GCJ gcj; } |
58 | tc-getGCJ() { tc-getPROG GCJ gcj "$@"; } |
53 | |
59 | |
54 | # Returns the name of the C compiler for build |
60 | # Returns the name of the C compiler for build |
55 | tc-getBUILD_CC() { |
61 | tc-getBUILD_CC() { |
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62 | local v |
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63 | for v in CC_FOR_BUILD BUILD_CC HOSTCC ; do |
56 | if [[ -n ${CC_FOR_BUILD} ]] ; then |
64 | if [[ -n ${!v} ]] ; then |
57 | export BUILD_CC=${CC_FOR_BUILD} |
65 | export BUILD_CC=${!v} |
58 | echo "${CC_FOR_BUILD}" |
66 | echo "${!v}" |
59 | return 0 |
67 | return 0 |
60 | fi |
68 | fi |
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69 | done |
61 | |
70 | |
62 | local search= |
71 | local search= |
63 | if [[ -n ${CBUILD} ]] ; then |
72 | if [[ -n ${CBUILD} ]] ; then |
64 | search=$(type -p "${CBUILD}-gcc") |
73 | search=$(type -p ${CBUILD}-gcc) |
65 | search=${search##*/} |
74 | search=${search##*/} |
66 | else |
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67 | search=gcc |
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68 | fi |
75 | fi |
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76 | search=${search:-gcc} |
69 | |
77 | |
70 | export BUILD_CC=${search} |
78 | export BUILD_CC=${search} |
71 | echo "${search}" |
79 | echo "${search}" |
72 | } |
80 | } |
73 | |
81 | |
74 | # Quick way to export a bunch of vars at once |
82 | # Quick way to export a bunch of vars at once |
75 | tc-export() { |
83 | tc-export() { |
76 | local var |
84 | local var |
77 | for var in "$@" ; do |
85 | for var in "$@" ; do |
78 | eval tc-get${var} |
86 | eval tc-get${var} > /dev/null |
79 | done |
87 | done |
80 | } |
88 | } |
81 | |
89 | |
82 | # A simple way to see if we're using a cross-compiler ... |
90 | # A simple way to see if we're using a cross-compiler ... |
83 | tc-is-cross-compiler() { |
91 | tc-is-cross-compiler() { |
84 | if [[ -n ${CBUILD} ]] ; then |
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85 | return $([[ ${CBUILD} != ${CHOST} ]]) |
92 | return $([[ ${CBUILD:-${CHOST}} != ${CHOST} ]]) |
86 | fi |
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87 | return 1 |
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88 | } |
93 | } |
89 | |
94 | |
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95 | # See if this toolchain is a softfloat based one. |
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96 | # The possible return values: |
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97 | # - only: the target is always softfloat (never had fpu) |
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98 | # - yes: the target should support softfloat |
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99 | # - no: the target should support hardfloat |
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100 | # This allows us to react differently where packages accept |
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101 | # softfloat flags in the case where support is optional, but |
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102 | # rejects softfloat flags where the target always lacks an fpu. |
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103 | tc-is-softfloat() { |
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104 | case ${CTARGET} in |
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105 | bfin*|h8300*) |
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106 | echo "only" ;; |
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107 | *) |
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108 | [[ ${CTARGET//_/-} == *-softfloat-* ]] \ |
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109 | && echo "yes" \ |
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110 | || echo "no" |
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111 | ;; |
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112 | esac |
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113 | } |
90 | |
114 | |
91 | # Parse information from CBUILD/CHOST/CTARGET rather than |
115 | # Parse information from CBUILD/CHOST/CTARGET rather than |
92 | # use external variables from the profile. |
116 | # use external variables from the profile. |
93 | tc-ninja_magic_to_arch() { |
117 | tc-ninja_magic_to_arch() { |
94 | ninj() { [[ ${type} = "kern" ]] && echo $1 || echo $2 ; } |
118 | ninj() { [[ ${type} == "kern" ]] && echo $1 || echo $2 ; } |
95 | |
119 | |
96 | local type=$1 |
120 | local type=$1 |
97 | local host=$2 |
121 | local host=$2 |
98 | [[ -z ${host} ]] && arg=${CHOST} |
122 | [[ -z ${host} ]] && host=${CTARGET:-${CHOST}} |
99 | |
123 | |
100 | case ${host} in |
124 | case ${host} in |
101 | alpha*) echo alpha;; |
125 | alpha*) echo alpha;; |
102 | x86_64*) ninj x86_64 amd64;; |
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103 | arm*) echo arm;; |
126 | arm*) echo arm;; |
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127 | avr*) ninj avr32 avr;; |
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128 | bfin*) ninj blackfin bfin;; |
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129 | cris*) echo cris;; |
104 | hppa*) ninj parisc hppa;; |
130 | hppa*) ninj parisc hppa;; |
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131 | i?86*) ninj i386 x86;; |
105 | ia64*) echo ia64;; |
132 | ia64*) echo ia64;; |
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133 | m68*) echo m68k;; |
106 | mips*) echo mips;; |
134 | mips*) echo mips;; |
107 | powerpc64*) echo ppc64;; |
135 | nios2*) echo nios2;; |
108 | powerpc*) echo ppc;; |
136 | nios*) echo nios;; |
109 | sparc64*) ninj sparc64 sparc;; |
137 | powerpc*) |
110 | sparc*) echo sparc;; |
138 | # Starting with linux-2.6.15, the 'ppc' and 'ppc64' trees |
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139 | # have been unified into simply 'powerpc', but until 2.6.16, |
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140 | # ppc32 is still using ARCH="ppc" as default |
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141 | if [[ $(KV_to_int ${KV}) -ge $(KV_to_int 2.6.16) ]] && [[ ${type} == "kern" ]] ; then |
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142 | echo powerpc |
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143 | elif [[ $(KV_to_int ${KV}) -eq $(KV_to_int 2.6.15) ]] && [[ ${type} == "kern" ]] ; then |
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144 | if [[ ${host} == powerpc64* ]] || [[ ${PROFILE_ARCH} == "ppc64" ]] ; then |
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145 | echo powerpc |
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146 | else |
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147 | echo ppc |
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148 | fi |
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149 | elif [[ ${host} == powerpc64* ]] ; then |
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150 | echo ppc64 |
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151 | elif [[ ${PROFILE_ARCH} == "ppc64" ]] ; then |
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152 | ninj ppc64 ppc |
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153 | else |
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154 | echo ppc |
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155 | fi |
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156 | ;; |
111 | s390*) echo s390;; |
157 | s390*) echo s390;; |
112 | sh64*) ninj sh64 sh;; |
158 | sh64*) ninj sh64 sh;; |
113 | sh*) echo sh;; |
159 | sh*) echo sh;; |
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160 | sparc64*) ninj sparc64 sparc;; |
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161 | sparc*) [[ ${PROFILE_ARCH} == "sparc64" ]] \ |
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162 | && ninj sparc64 sparc \ |
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163 | || echo sparc |
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164 | ;; |
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165 | vax*) echo vax;; |
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166 | x86_64*) ninj x86_64 amd64;; |
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167 | |
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168 | # since our usage of tc-arch is largely concerned with |
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169 | # normalizing inputs for testing ${CTARGET}, let's filter |
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170 | # other cross targets (mingw and such) into the unknown. |
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171 | *) echo unknown;; |
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172 | esac |
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173 | } |
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174 | tc-arch-kernel() { |
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175 | tc-ninja_magic_to_arch kern $@ |
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176 | } |
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177 | tc-arch() { |
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178 | tc-ninja_magic_to_arch portage $@ |
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179 | } |
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180 | tc-endian() { |
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181 | local host=$1 |
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182 | [[ -z ${host} ]] && host=${CTARGET:-${CHOST}} |
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183 | host=${host%%-*} |
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184 | |
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185 | case ${host} in |
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186 | alpha*) echo big;; |
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187 | arm*b*) echo big;; |
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188 | arm*) echo little;; |
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189 | cris*) echo little;; |
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190 | hppa*) echo big;; |
114 | i?86*) echo x86;; |
191 | i?86*) echo little;; |
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192 | ia64*) echo little;; |
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193 | m68*) echo big;; |
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194 | mips*l*) echo little;; |
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195 | mips*) echo big;; |
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196 | powerpc*) echo big;; |
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197 | s390*) echo big;; |
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198 | sh*b*) echo big;; |
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199 | sh*) echo little;; |
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200 | sparc*) echo big;; |
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201 | x86_64*) echo little;; |
115 | *) echo wtf;; |
202 | *) echo wtf;; |
116 | esac |
203 | esac |
117 | } |
204 | } |
118 | tc-arch-kernel() { |
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119 | tc-ninja_magic_to_arch kern $@ |
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120 | } |
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121 | tc-arch() { |
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122 | tc-ninja_magic_to_arch portage $@ |
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123 | } |
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124 | tc-endian() { |
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125 | local host=$1 |
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126 | [[ -z ${host} ]] && host=${CHOST} |
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127 | |
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128 | case ${host} in |
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129 | alpha*) echo big;; |
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130 | x86_64*) echo little;; |
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131 | arm*eb-*) echo big;; |
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132 | arm*) echo little;; |
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133 | hppa*) echo big;; |
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134 | ia64*) echo little;; |
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135 | m68k*) echo big;; |
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136 | mips*el-*) echo little;; |
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137 | mips*) echo big;; |
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138 | powerpc*) echo big;; |
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139 | sparc*) echo big;; |
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140 | s390*) echo big;; |
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141 | sh*el-) echo little;; |
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142 | sh*) echo big;; |
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143 | i?86*) echo little;; |
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144 | *) echo wtf;; |
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145 | esac |
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146 | } |
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147 | |
205 | |
148 | # Returns the version as by `$CC -dumpversion` |
206 | # Returns the version as by `$CC -dumpversion` |
149 | gcc-fullversion() { |
207 | gcc-fullversion() { |
150 | echo "$($(tc-getCC) -dumpversion)" |
208 | $(tc-getCC "$@") -dumpversion |
151 | } |
209 | } |
152 | # Returns the version, but only the <major>.<minor> |
210 | # Returns the version, but only the <major>.<minor> |
153 | gcc-version() { |
211 | gcc-version() { |
154 | echo "$(gcc-fullversion | cut -f1,2 -d.)" |
212 | gcc-fullversion "$@" | cut -f1,2 -d. |
155 | } |
213 | } |
156 | # Returns the Major version |
214 | # Returns the Major version |
157 | gcc-major-version() { |
215 | gcc-major-version() { |
158 | echo "$(gcc-version | cut -f1 -d.)" |
216 | gcc-version "$@" | cut -f1 -d. |
159 | } |
217 | } |
160 | # Returns the Minor version |
218 | # Returns the Minor version |
161 | gcc-minor-version() { |
219 | gcc-minor-version() { |
162 | echo "$(gcc-version | cut -f2 -d.)" |
220 | gcc-version "$@" | cut -f2 -d. |
163 | } |
221 | } |
164 | # Returns the Micro version |
222 | # Returns the Micro version |
165 | gcc-micro-version() { |
223 | gcc-micro-version() { |
166 | echo "$(gcc-fullversion | cut -f3 -d.)" |
224 | gcc-fullversion "$@" | cut -f3 -d. | cut -f1 -d- |
167 | } |
225 | } |
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226 | # Returns the installation directory - internal toolchain |
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227 | # function for use by _gcc-specs-exists (for flag-o-matic). |
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228 | _gcc-install-dir() { |
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229 | echo "$($(tc-getCC) -print-search-dirs 2> /dev/null |\ |
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230 | awk '$1=="install:" {print $2}')" |
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231 | } |
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232 | # Returns true if the indicated specs file exists - internal toolchain |
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233 | # function for use by flag-o-matic. |
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234 | _gcc-specs-exists() { |
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235 | [[ -f $(_gcc-install-dir)/$1 ]] |
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236 | } |
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237 | |
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238 | # Returns requested gcc specs directive unprocessed - for used by |
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239 | # gcc-specs-directive() |
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240 | # Note; later specs normally overwrite earlier ones; however if a later |
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241 | # spec starts with '+' then it appends. |
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242 | # gcc -dumpspecs is parsed first, followed by files listed by "gcc -v" |
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243 | # as "Reading <file>", in order. Strictly speaking, if there's a |
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244 | # $(gcc_install_dir)/specs, the built-in specs aren't read, however by |
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245 | # the same token anything from 'gcc -dumpspecs' is overridden by |
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246 | # the contents of $(gcc_install_dir)/specs so the result is the |
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247 | # same either way. |
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248 | _gcc-specs-directive_raw() { |
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249 | local cc=$(tc-getCC) |
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250 | local specfiles=$(LC_ALL=C ${cc} -v 2>&1 | awk '$1=="Reading" {print $NF}') |
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251 | ${cc} -dumpspecs 2> /dev/null | cat - ${specfiles} | awk -v directive=$1 \ |
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252 | 'BEGIN { pspec=""; spec=""; outside=1 } |
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253 | $1=="*"directive":" { pspec=spec; spec=""; outside=0; next } |
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254 | outside || NF==0 || ( substr($1,1,1)=="*" && substr($1,length($1),1)==":" ) { outside=1; next } |
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255 | spec=="" && substr($0,1,1)=="+" { spec=pspec " " substr($0,2); next } |
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256 | { spec=spec $0 } |
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257 | END { print spec }' |
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258 | return 0 |
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259 | } |
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260 | |
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261 | # Return the requested gcc specs directive, with all included |
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262 | # specs expanded. |
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263 | # Note, it does not check for inclusion loops, which cause it |
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264 | # to never finish - but such loops are invalid for gcc and we're |
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265 | # assuming gcc is operational. |
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266 | gcc-specs-directive() { |
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267 | local directive subdname subdirective |
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268 | directive="$(_gcc-specs-directive_raw $1)" |
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269 | while [[ ${directive} == *%\(*\)* ]]; do |
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270 | subdname=${directive/*%\(} |
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271 | subdname=${subdname/\)*} |
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272 | subdirective="$(_gcc-specs-directive_raw ${subdname})" |
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273 | directive="${directive//\%(${subdname})/${subdirective}}" |
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274 | done |
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275 | echo "${directive}" |
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276 | return 0 |
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277 | } |
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278 | |
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279 | # Returns true if gcc sets relro |
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280 | gcc-specs-relro() { |
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281 | local directive |
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282 | directive=$(gcc-specs-directive link_command) |
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283 | return $([[ ${directive/\{!norelro:} != ${directive} ]]) |
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284 | } |
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285 | # Returns true if gcc sets now |
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286 | gcc-specs-now() { |
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287 | local directive |
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288 | directive=$(gcc-specs-directive link_command) |
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289 | return $([[ ${directive/\{!nonow:} != ${directive} ]]) |
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290 | } |
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291 | # Returns true if gcc builds PIEs |
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292 | gcc-specs-pie() { |
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293 | local directive |
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294 | directive=$(gcc-specs-directive cc1) |
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295 | return $([[ ${directive/\{!nopie:} != ${directive} ]]) |
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296 | } |
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297 | # Returns true if gcc builds with the stack protector |
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298 | gcc-specs-ssp() { |
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299 | local directive |
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300 | directive=$(gcc-specs-directive cc1) |
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301 | return $([[ ${directive/\{!fno-stack-protector:} != ${directive} ]]) |
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302 | } |
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303 | # Returns true if gcc upgrades fstack-protector to fstack-protector-all |
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304 | gcc-specs-ssp-to-all() { |
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305 | local directive |
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306 | directive=$(gcc-specs-directive cc1) |
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307 | return $([[ ${directive/\{!fno-stack-protector-all:} != ${directive} ]]) |
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308 | } |
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309 | |
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310 | |
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311 | # This function generate linker scripts in /usr/lib for dynamic |
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312 | # libs in /lib. This is to fix linking problems when you have |
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313 | # the .so in /lib, and the .a in /usr/lib. What happens is that |
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314 | # in some cases when linking dynamic, the .a in /usr/lib is used |
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315 | # instead of the .so in /lib due to gcc/libtool tweaking ld's |
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316 | # library search path. This cause many builds to fail. |
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317 | # See bug #4411 for more info. |
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318 | # |
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319 | # To use, simply call: |
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320 | # |
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321 | # gen_usr_ldscript libfoo.so |
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322 | # |
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323 | # Note that you should in general use the unversioned name of |
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324 | # the library, as ldconfig should usually update it correctly |
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325 | # to point to the latest version of the library present. |
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326 | gen_usr_ldscript() { |
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327 | local lib libdir=$(get_libdir) output_format="" |
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328 | # Just make sure it exists |
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329 | dodir /usr/${libdir} |
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330 | |
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331 | # OUTPUT_FORMAT gives hints to the linker as to what binary format |
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332 | # is referenced ... makes multilib saner |
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333 | output_format=$($(tc-getCC) ${CFLAGS} ${LDFLAGS} -Wl,--verbose 2>&1 | sed -n 's/^OUTPUT_FORMAT("\([^"]*\)",.*/\1/p') |
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334 | [[ -n ${output_format} ]] && output_format="OUTPUT_FORMAT ( ${output_format} )" |
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335 | |
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336 | for lib in "$@" ; do |
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337 | if [[ ${USERLAND} == "Darwin" ]] ; then |
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338 | ewarn "Not creating fake dynamic library for $lib on Darwin;" |
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339 | ewarn "making a symlink instead." |
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340 | dosym "/${libdir}/${lib}" "/usr/${libdir}/${lib}" |
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341 | else |
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342 | cat > "${D}/usr/${libdir}/${lib}" <<-END_LDSCRIPT |
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343 | /* GNU ld script |
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344 | Since Gentoo has critical dynamic libraries |
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345 | in /lib, and the static versions in /usr/lib, |
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346 | we need to have a "fake" dynamic lib in /usr/lib, |
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347 | otherwise we run into linking problems. |
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348 | |
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349 | See bug http://bugs.gentoo.org/4411 for more info. |
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350 | */ |
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351 | ${output_format} |
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352 | GROUP ( /${libdir}/${lib} ) |
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353 | END_LDSCRIPT |
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354 | fi |
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355 | fperms a+x "/usr/${libdir}/${lib}" || die "could not change perms on ${lib}" |
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356 | done |
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357 | } |