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 1.181 2012/11/11 20:00:57 vapier Exp $ |
4 | |
4 | |
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5 | # @ECLASS: flag-o-matic.eclass |
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6 | # @MAINTAINER: |
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7 | # toolchain@gentoo.org |
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8 | # @BLURB: common functions to manipulate and query toolchain flags |
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9 | # @DESCRIPTION: |
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10 | # This eclass contains a suite of functions to help developers sanely |
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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 |
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14 | ___ECLASS_ONCE_FLAG_O_MATIC="recur -_+^+_- spank" |
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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 | # |
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14 | #### append-flags <flags> #### |
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15 | # Add extra flags to your current C[XX]FLAGS |
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16 | # |
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17 | #### replace-flags <orig.flag> <new.flag> ### |
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18 | # Replace a flag by another one |
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19 | # |
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20 | #### replace-cpu-flags <old.cpus> <new.cpu> ### |
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21 | # Replace march/mcpu flags that specify <old.cpus> |
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22 | # with flags that specify <new.cpu> |
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23 | # |
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24 | #### is-flag[q] <flag> #### |
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25 | # Returns "true" if flag is set in C[XX]FLAGS |
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26 | # Matches only complete a flag |
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27 | # q version sets return code but doesn't echo |
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28 | # |
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29 | #### is-ldflag[q] <flag> #### |
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30 | # Returns "true" if flag is set in LDFLAGS |
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31 | # Matches only complete a flag |
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32 | # q version sets return code but doesn't echo |
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33 | # |
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34 | #### strip-flags #### |
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35 | # Strip C[XX]FLAGS of everything except known |
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36 | # good options. |
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37 | # |
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38 | #### strip-unsupported-flags #### |
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39 | # Strip C[XX]FLAGS of any flags not supported by |
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40 | # installed version of gcc |
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41 | # |
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42 | #### get-flag <flag> #### |
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43 | # Find and echo the value for a particular flag |
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44 | # |
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45 | #### replace-sparc64-flags #### |
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46 | # Sets mcpu to v8 and uses the original value |
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47 | # as mtune if none specified. |
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48 | # |
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49 | #### filter-mfpmath <math types> #### |
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50 | # Remove specified math types from the fpmath specification |
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51 | # If the user has -mfpmath=sse,386, running `filter-mfpmath sse` |
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52 | # will leave the user with -mfpmath=386 |
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53 | # |
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54 | #### append-ldflags #### |
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55 | # Add extra flags to your current LDFLAGS |
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56 | # |
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57 | #### filter-ldflags <flags> #### |
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58 | # Remove particular flags from LDFLAGS |
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59 | # Matches only complete flags |
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60 | # |
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61 | #### bindnow-flags #### |
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62 | # Returns the flags to enable "now" binding in the current selected linker. |
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63 | # |
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64 | ################ DEPRECATED functions ################ |
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65 | # The following are still present to avoid breaking existing |
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66 | # code more than necessary; however they are deprecated. Please |
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67 | # use gcc-specs-* from toolchain-funcs.eclass instead, if you |
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68 | # need to know which hardened techs are active in the compiler. |
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69 | # See bug #100974 |
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70 | # |
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71 | #### has_hardened #### |
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72 | # Returns true if the compiler has 'Hardened' in its version string, |
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73 | # (note; switched-spec vanilla compilers satisfy this condition) or |
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74 | # the specs file name contains 'hardened'. |
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75 | # |
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76 | #### has_pie #### |
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77 | # Returns true if the compiler by default or with current CFLAGS |
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78 | # builds position-independent code. |
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79 | # |
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80 | #### has_pic #### |
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81 | # Returns true if the compiler by default or with current CFLAGS |
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82 | # builds position-independent code. |
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83 | # |
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84 | #### has_ssp_all #### |
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85 | # Returns true if the compiler by default or with current CFLAGS |
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86 | # generates stack smash protections for all functions |
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87 | # |
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88 | #### has_ssp #### |
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89 | # Returns true if the compiler by default or with current CFLAGS |
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90 | # generates stack smash protections for most vulnerable functions |
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91 | # |
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92 | |
22 | |
93 | # C[XX]FLAGS that we allow in strip-flags |
23 | # {C,CPP,CXX,CCAS,F,FC,LD}FLAGS that we allow in strip-flags |
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24 | # Note: shell globs and character lists are allowed |
94 | setup-allowed-flags() { |
25 | setup-allowed-flags() { |
95 | if [[ -z ${ALLOWED_FLAGS} ]] ; then |
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96 | export ALLOWED_FLAGS="-pipe" |
26 | ALLOWED_FLAGS="-pipe" |
97 | export ALLOWED_FLAGS="${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" |
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33 | ALLOWED_FLAGS+=" -W* -w" |
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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="${ALLOWED_FLAGS} -fno-stack-protector -fno-stack-protector-all" |
36 | ALLOWED_FLAGS+=" -fno-stack-protector -fno-stack-protector-all \ |
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37 | -fno-strict-aliasing -fno-bounds-checking -fstrict-overflow \ |
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38 | -fno-omit-frame-pointer" |
105 | ALLOWED_FLAGS="${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 \ |
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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 -mfloat-abi=* \ |
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49 | -D* -U*" |
114 | |
50 | |
115 | # C[XX]FLAGS that we are think is ok, but needs testing |
51 | # 4.5 |
116 | # NOTE: currently -Os have issues with gcc3 and K6* arch's |
52 | ALLOWED_FLAGS+=" -mno-fma4 -mno-movbe -mno-xop -mno-lwp" |
117 | export UNSTABLE_FLAGS="-Os -O3 -freorder-blocks" |
53 | # 4.6 |
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54 | ALLOWED_FLAGS+=" -mno-fsgsbase -mno-rdrnd -mno-f16c -mno-bmi -mno-tbm" |
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55 | # 4.7 |
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56 | ALLOWED_FLAGS+=" -mno-avx2 -mno-bmi2 -mno-fma -mno-lzcnt" |
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57 | |
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58 | # CPPFLAGS and LDFLAGS |
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59 | ALLOWED_FLAGS+=" -I* -L* -R* -Wl,*" |
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60 | |
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61 | export ALLOWED_FLAGS |
118 | return 0 |
62 | return 0 |
119 | } |
63 | } |
120 | |
64 | |
121 | # inverted filters for hardened compiler. This is trying to unpick |
65 | # inverted filters for hardened compiler. This is trying to unpick |
122 | # the hardened compiler defaults. |
66 | # the hardened compiler defaults. |
… | |
… | |
130 | -fPIC|-fpic|-fPIE|-fpie|-Wl,pie|-pie) |
74 | -fPIC|-fpic|-fPIE|-fpie|-Wl,pie|-pie) |
131 | gcc-specs-pie || continue |
75 | gcc-specs-pie || continue |
132 | is-flagq -nopie || append-flags -nopie;; |
76 | is-flagq -nopie || append-flags -nopie;; |
133 | -fstack-protector) |
77 | -fstack-protector) |
134 | gcc-specs-ssp || continue |
78 | gcc-specs-ssp || continue |
135 | is-flagq -fno-stack-protector || append-flags -fno-stack-protector;; |
79 | is-flagq -fno-stack-protector || append-flags $(test-flags -fno-stack-protector);; |
136 | -fstack-protector-all) |
80 | -fstack-protector-all) |
137 | gcc-specs-ssp-to-all || continue |
81 | gcc-specs-ssp-to-all || continue |
138 | is-flagq -fno-stack-protector-all || append-flags -fno-stack-protector-all;; |
82 | is-flagq -fno-stack-protector-all || append-flags $(test-flags -fno-stack-protector-all);; |
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83 | -fno-strict-overflow) |
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84 | gcc-specs-nostrict || continue |
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85 | is-flagq -fstrict-overflow || append-flags $(test-flags -fstrict-overflow);; |
139 | esac |
86 | esac |
140 | done |
87 | done |
141 | } |
88 | } |
142 | |
89 | |
143 | # Remove occurrences of strings from variable given in $1 |
90 | # Remove occurrences of strings from variable given in $1 |
144 | # Strings removed are matched as globs, so for example |
91 | # Strings removed are matched as globs, so for example |
145 | # '-O*' would remove -O1, -O2 etc. |
92 | # '-O*' would remove -O1, -O2 etc. |
146 | _filter-var() { |
93 | _filter-var() { |
147 | local f x VAR VAL |
94 | local f x var=$1 new=() |
148 | declare -a new |
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149 | |
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150 | VAR=$1 |
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151 | shift |
95 | shift |
152 | eval VAL=\${${VAR}} |
96 | |
153 | for f in ${VAL}; do |
97 | for f in ${!var} ; do |
154 | for x in "$@"; do |
98 | for x in "$@" ; do |
155 | # Note this should work with globs like -O* |
99 | # Note this should work with globs like -O* |
156 | [[ ${f} == ${x} ]] && continue 2 |
100 | [[ ${f} == ${x} ]] && continue 2 |
157 | done |
101 | done |
158 | eval new\[\${\#new\[@]}]=\${f} |
102 | new+=( "${f}" ) |
159 | done |
103 | done |
160 | eval export ${VAR}=\${new\[*]} |
104 | eval export ${var}=\""${new[*]}"\" |
161 | } |
105 | } |
162 | |
106 | |
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107 | # @FUNCTION: filter-flags |
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108 | # @USAGE: <flags> |
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109 | # @DESCRIPTION: |
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110 | # Remove particular <flags> from {C,CPP,CXX,CCAS,F,FC,LD}FLAGS. Accepts shell globs. |
163 | filter-flags() { |
111 | filter-flags() { |
164 | _filter-hardened "$@" |
112 | _filter-hardened "$@" |
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113 | local v |
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114 | for v in $(all-flag-vars) ; do |
165 | _filter-var CFLAGS "$@" |
115 | _filter-var ${v} "$@" |
166 | _filter-var CXXFLAGS "$@" |
116 | done |
167 | return 0 |
117 | return 0 |
168 | } |
118 | } |
169 | |
119 | |
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120 | # @FUNCTION: filter-lfs-flags |
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121 | # @DESCRIPTION: |
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122 | # Remove flags that enable Large File Support. |
170 | filter-lfs-flags() { |
123 | filter-lfs-flags() { |
171 | [[ -n $@ ]] && die "filter-lfs-flags takes no arguments" |
124 | [[ $# -ne 0 ]] && die "filter-lfs-flags takes no arguments" |
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125 | # http://www.gnu.org/s/libc/manual/html_node/Feature-Test-Macros.html |
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126 | # _LARGEFILE_SOURCE: enable support for new LFS funcs (ftello/etc...) |
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127 | # _LARGEFILE64_SOURCE: enable support for 64bit variants (off64_t/fseeko64/etc...) |
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128 | # _FILE_OFFSET_BITS: default to 64bit variants (off_t is defined as off64_t) |
172 | filter-flags -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE |
129 | filter-flags -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE |
173 | } |
130 | } |
174 | |
131 | |
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132 | # @FUNCTION: filter-ldflags |
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133 | # @USAGE: <flags> |
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134 | # @DESCRIPTION: |
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135 | # Remove particular <flags> from LDFLAGS. Accepts shell globs. |
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136 | filter-ldflags() { |
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137 | _filter-var LDFLAGS "$@" |
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138 | return 0 |
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139 | } |
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140 | |
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141 | # @FUNCTION: append-cppflags |
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142 | # @USAGE: <flags> |
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143 | # @DESCRIPTION: |
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144 | # Add extra <flags> to the current CPPFLAGS. |
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145 | append-cppflags() { |
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146 | [[ $# -eq 0 ]] && return 0 |
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147 | export CPPFLAGS="${CPPFLAGS} $*" |
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148 | return 0 |
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149 | } |
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150 | |
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151 | # @FUNCTION: append-cflags |
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152 | # @USAGE: <flags> |
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153 | # @DESCRIPTION: |
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154 | # Add extra <flags> to the current CFLAGS. |
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155 | append-cflags() { |
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156 | [[ $# -eq 0 ]] && return 0 |
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157 | export CFLAGS=$(test-flags-CC ${CFLAGS} "$@") |
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158 | return 0 |
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159 | } |
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160 | |
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161 | # @FUNCTION: append-cxxflags |
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162 | # @USAGE: <flags> |
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163 | # @DESCRIPTION: |
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164 | # Add extra <flags> to the current CXXFLAGS. |
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165 | append-cxxflags() { |
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166 | [[ $# -eq 0 ]] && return 0 |
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167 | export CXXFLAGS=$(test-flags-CXX ${CXXFLAGS} "$@") |
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168 | return 0 |
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169 | } |
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170 | |
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171 | # @FUNCTION: append-fflags |
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172 | # @USAGE: <flags> |
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173 | # @DESCRIPTION: |
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174 | # Add extra <flags> to the current {F,FC}FLAGS. |
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175 | append-fflags() { |
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176 | [[ $# -eq 0 ]] && return 0 |
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177 | export FFLAGS=$(test-flags-F77 ${FFLAGS} "$@") |
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178 | export FCFLAGS=$(test-flags-FC ${FCFLAGS} "$@") |
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179 | return 0 |
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180 | } |
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181 | |
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182 | # @FUNCTION: append-lfs-flags |
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183 | # @DESCRIPTION: |
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184 | # Add flags that enable Large File Support. |
175 | append-lfs-flags() { |
185 | append-lfs-flags() { |
176 | [[ -n $@ ]] && die "append-lfs-flags takes no arguments" |
186 | [[ $# -ne 0 ]] && die "append-lfs-flags takes no arguments" |
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187 | # 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 |
188 | append-cppflags -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE |
178 | } |
189 | } |
179 | |
190 | |
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191 | # @FUNCTION: append-ldflags |
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192 | # @USAGE: <flags> |
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193 | # @DESCRIPTION: |
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194 | # Add extra <flags> to the current LDFLAGS. |
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195 | append-ldflags() { |
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196 | [[ $# -eq 0 ]] && return 0 |
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197 | local flag |
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198 | for flag in "$@"; do |
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199 | [[ ${flag} == -l* ]] && \ |
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200 | eqawarn "Appending a library link instruction (${flag}); libraries to link to should not be passed through LDFLAGS" |
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201 | done |
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202 | |
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203 | export LDFLAGS="${LDFLAGS} $*" |
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204 | return 0 |
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205 | } |
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206 | |
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207 | # @FUNCTION: append-flags |
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208 | # @USAGE: <flags> |
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209 | # @DESCRIPTION: |
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210 | # Add extra <flags> to your current {C,CXX,F,FC}FLAGS. |
180 | append-flags() { |
211 | append-flags() { |
181 | [[ -z $* ]] && return 0 |
212 | [[ $# -eq 0 ]] && return 0 |
182 | export CFLAGS="${CFLAGS} $*" |
213 | case " $* " in |
183 | export CXXFLAGS="${CXXFLAGS} $*" |
214 | *' '-[DIU]*) eqawarn 'please use append-cppflags for preprocessor flags' ;; |
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215 | *' '-L*|\ |
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216 | *' '-Wl,*) eqawarn 'please use append-ldflags for linker flags' ;; |
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217 | esac |
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218 | append-cflags "$@" |
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219 | append-cxxflags "$@" |
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220 | append-fflags "$@" |
184 | return 0 |
221 | return 0 |
185 | } |
222 | } |
186 | |
223 | |
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224 | # @FUNCTION: replace-flags |
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225 | # @USAGE: <old> <new> |
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226 | # @DESCRIPTION: |
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227 | # Replace the <old> flag with <new>. Accepts shell globs for <old>. |
187 | replace-flags() { |
228 | replace-flags() { |
188 | [[ $# != 2 ]] \ |
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189 | && echo && eerror "Usage: replace-flags <old flag> <new flag>" \ |
229 | [[ $# != 2 ]] && die "Usage: replace-flags <old flag> <new flag>" |
190 | && die "replace-flags takes 2 arguments, not $#" |
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191 | |
230 | |
192 | local f fset |
231 | local f var new |
193 | declare -a new_CFLAGS new_CXXFLAGS |
232 | for var in $(all-flag-vars) ; do |
194 | |
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195 | for fset in CFLAGS CXXFLAGS; do |
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196 | # Looping over the flags instead of using a global |
233 | # Looping over the flags instead of using a global |
197 | # substitution ensures that we're working with flag atoms. |
234 | # substitution ensures that we're working with flag atoms. |
198 | # Otherwise globs like -O* have the potential to wipe out the |
235 | # Otherwise globs like -O* have the potential to wipe out the |
199 | # list of flags. |
236 | # list of flags. |
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237 | new=() |
200 | for f in ${!fset}; do |
238 | for f in ${!var} ; do |
201 | # Note this should work with globs like -O* |
239 | # Note this should work with globs like -O* |
202 | [[ ${f} == ${1} ]] && f=${2} |
240 | [[ ${f} == ${1} ]] && f=${2} |
203 | eval new_${fset}\[\${\#new_${fset}\[@]}]=\${f} |
241 | new+=( "${f}" ) |
204 | done |
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205 | eval export ${fset}=\${new_${fset}\[*]} |
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206 | done |
242 | done |
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243 | eval export ${var}=\""${new[*]}"\" |
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244 | done |
207 | |
245 | |
208 | return 0 |
246 | return 0 |
209 | } |
247 | } |
210 | |
248 | |
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249 | # @FUNCTION: replace-cpu-flags |
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250 | # @USAGE: <old> <new> |
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251 | # @DESCRIPTION: |
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252 | # Replace cpu flags (like -march/-mcpu/-mtune) that select the <old> cpu |
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|
253 | # with flags that select the <new> cpu. Accepts shell globs for <old>. |
211 | replace-cpu-flags() { |
254 | replace-cpu-flags() { |
212 | local newcpu="$#" ; newcpu="${!newcpu}" |
255 | local newcpu="$#" ; newcpu="${!newcpu}" |
213 | while [ $# -gt 1 ] ; do |
256 | while [ $# -gt 1 ] ; do |
214 | # quote to make sure that no globbing is done (particularly on |
257 | # quote to make sure that no globbing is done (particularly on |
215 | # ${oldcpu} prior to calling replace-flags |
258 | # ${oldcpu}) prior to calling replace-flags |
216 | replace-flags "-march=${1}" "-march=${newcpu}" |
259 | replace-flags "-march=${1}" "-march=${newcpu}" |
217 | replace-flags "-mcpu=${1}" "-mcpu=${newcpu}" |
260 | replace-flags "-mcpu=${1}" "-mcpu=${newcpu}" |
218 | replace-flags "-mtune=${1}" "-mtune=${newcpu}" |
261 | replace-flags "-mtune=${1}" "-mtune=${newcpu}" |
219 | shift |
262 | shift |
220 | done |
263 | done |
221 | return 0 |
264 | return 0 |
222 | } |
265 | } |
223 | |
266 | |
|
|
267 | _is_flagq() { |
|
|
268 | local x var |
|
|
269 | eval var=\""\${$1[*]}"\" |
|
|
270 | for x in ${var} ; do |
|
|
271 | [[ ${x} == $2 ]] && return 0 |
|
|
272 | done |
|
|
273 | return 1 |
|
|
274 | } |
|
|
275 | |
|
|
276 | # @FUNCTION: is-flagq |
|
|
277 | # @USAGE: <flag> |
|
|
278 | # @DESCRIPTION: |
|
|
279 | # Returns shell true if <flag> is in {C,CXX,F,FC}FLAGS, else returns shell false. Accepts shell globs. |
224 | is-flagq() { |
280 | is-flagq() { |
|
|
281 | [[ -n $2 ]] && die "Usage: is-flag <flag>" |
|
|
282 | |
225 | local x |
283 | local var |
226 | |
284 | for var in $(all-flag-vars) ; do |
227 | for x in ${CFLAGS} ${CXXFLAGS} ; do |
285 | _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 |
286 | done |
233 | return 1 |
287 | return 1 |
234 | } |
288 | } |
235 | |
289 | |
|
|
290 | # @FUNCTION: is-flag |
|
|
291 | # @USAGE: <flag> |
|
|
292 | # @DESCRIPTION: |
|
|
293 | # Echo's "true" if flag is set in {C,CXX,F,FC}FLAGS. Accepts shell globs. |
236 | is-flag() { |
294 | is-flag() { |
237 | if is-flagq ${1}; then |
295 | is-flagq "$@" && echo true |
238 | echo true |
|
|
239 | return 0 |
|
|
240 | fi |
|
|
241 | return 1 |
|
|
242 | } |
296 | } |
243 | |
297 | |
|
|
298 | # @FUNCTION: is-ldflagq |
|
|
299 | # @USAGE: <flag> |
|
|
300 | # @DESCRIPTION: |
|
|
301 | # Returns shell true if <flag> is in LDFLAGS, else returns shell false. Accepts shell globs. |
244 | is-ldflagq() { |
302 | is-ldflagq() { |
245 | local x |
303 | [[ -n $2 ]] && die "Usage: is-ldflag <flag>" |
246 | |
304 | _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 | } |
305 | } |
255 | |
306 | |
|
|
307 | # @FUNCTION: is-ldflag |
|
|
308 | # @USAGE: <flag> |
|
|
309 | # @DESCRIPTION: |
|
|
310 | # Echo's "true" if flag is set in LDFLAGS. Accepts shell globs. |
256 | is-ldflag() { |
311 | is-ldflag() { |
257 | if is-ldflagq ${1}; then |
312 | is-ldflagq "$@" && echo true |
258 | echo true |
|
|
259 | return 0 |
|
|
260 | fi |
|
|
261 | return 1 |
|
|
262 | } |
313 | } |
263 | |
314 | |
|
|
315 | # @FUNCTION: filter-mfpmath |
|
|
316 | # @USAGE: <math types> |
|
|
317 | # @DESCRIPTION: |
|
|
318 | # Remove specified math types from the fpmath flag. For example, if the user |
|
|
319 | # has -mfpmath=sse,386, running `filter-mfpmath sse` will leave the user with |
|
|
320 | # -mfpmath=386. |
264 | filter-mfpmath() { |
321 | filter-mfpmath() { |
265 | local orig_mfpmath new_math prune_math |
322 | local orig_mfpmath new_math prune_math |
266 | |
323 | |
267 | # save the original -mfpmath flag |
324 | # save the original -mfpmath flag |
268 | orig_mfpmath="`get-flag -mfpmath`" |
325 | orig_mfpmath=$(get-flag -mfpmath) |
269 | # get the value of the current -mfpmath flag |
326 | # get the value of the current -mfpmath flag |
270 | new_math=" `get-flag mfpmath | tr , ' '` " |
327 | new_math=$(get-flag mfpmath) |
|
|
328 | new_math=" ${new_math//,/ } " |
271 | # figure out which math values are to be removed |
329 | # figure out which math values are to be removed |
272 | prune_math="" |
330 | prune_math="" |
273 | for prune_math in "$@" ; do |
331 | for prune_math in "$@" ; do |
274 | new_math="${new_math/ ${prune_math} / }" |
332 | new_math=${new_math/ ${prune_math} / } |
275 | done |
333 | done |
276 | new_math="`echo ${new_math:1:${#new_math}-2} | tr ' ' ,`" |
334 | new_math=$(echo ${new_math}) |
|
|
335 | new_math=${new_math// /,} |
277 | |
336 | |
278 | if [ -z "${new_math}" ] ; then |
337 | if [[ -z ${new_math} ]] ; then |
279 | # if we're removing all user specified math values are |
338 | # if we're removing all user specified math values are |
280 | # slated for removal, then we just filter the flag |
339 | # slated for removal, then we just filter the flag |
281 | filter-flags ${orig_mfpmath} |
340 | filter-flags ${orig_mfpmath} |
282 | else |
341 | else |
283 | # if we only want to filter some of the user specified |
342 | # if we only want to filter some of the user specified |
… | |
… | |
285 | replace-flags ${orig_mfpmath} -mfpmath=${new_math} |
344 | replace-flags ${orig_mfpmath} -mfpmath=${new_math} |
286 | fi |
345 | fi |
287 | return 0 |
346 | return 0 |
288 | } |
347 | } |
289 | |
348 | |
|
|
349 | # @FUNCTION: strip-flags |
|
|
350 | # @DESCRIPTION: |
|
|
351 | # Strip *FLAGS of everything except known good/safe flags. This runs over all |
|
|
352 | # flags returned by all_flag_vars(). |
290 | strip-flags() { |
353 | strip-flags() { |
291 | local x y flag NEW_CFLAGS NEW_CXXFLAGS |
354 | local x y var |
292 | |
355 | |
293 | setup-allowed-flags |
356 | setup-allowed-flags |
294 | |
357 | |
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 |
358 | set -f # disable pathname expansion |
304 | |
359 | |
305 | for x in ${CFLAGS}; do |
360 | for var in $(all-flag-vars) ; do |
|
|
361 | local new=() |
|
|
362 | |
|
|
363 | for x in ${!var} ; do |
|
|
364 | local flag=${x%%=*} |
306 | for y in ${ALLOWED_FLAGS}; do |
365 | for y in ${ALLOWED_FLAGS} ; do |
307 | flag=${x%%=*} |
|
|
308 | if [ "${flag%%${y}}" = "" ] ; then |
366 | if [[ -z ${flag%%${y}} ]] ; then |
309 | NEW_CFLAGS="${NEW_CFLAGS} ${x}" |
367 | new+=( "${x}" ) |
310 | break |
368 | break |
311 | fi |
369 | fi |
312 | done |
370 | done |
313 | done |
371 | done |
314 | |
372 | |
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} ${x}" |
|
|
320 | break |
|
|
321 | fi |
|
|
322 | done |
|
|
323 | done |
|
|
324 | |
|
|
325 | # In case we filtered out all optimization flags fallback to -O2 |
373 | # In case we filtered out all optimization flags fallback to -O2 |
326 | if [ "${CFLAGS/-O}" != "${CFLAGS}" -a "${NEW_CFLAGS/-O}" = "${NEW_CFLAGS}" ]; then |
374 | if _is_flagq ${var} "-O*" && ! _is_flagq new "-O*" ; then |
327 | NEW_CFLAGS="${NEW_CFLAGS} -O2" |
375 | new+=( -O2 ) |
328 | fi |
376 | fi |
329 | if [ "${CXXFLAGS/-O}" != "${CXXFLAGS}" -a "${NEW_CXXFLAGS/-O}" = "${NEW_CXXFLAGS}" ]; then |
377 | |
330 | NEW_CXXFLAGS="${NEW_CXXFLAGS} -O2" |
378 | eval export ${var}=\""${new[*]}"\" |
331 | fi |
379 | done |
332 | |
380 | |
333 | set +f # re-enable pathname expansion |
381 | set +f # re-enable pathname expansion |
334 | |
382 | |
335 | export CFLAGS="${NEW_CFLAGS}" |
|
|
336 | export CXXFLAGS="${NEW_CXXFLAGS}" |
|
|
337 | return 0 |
383 | return 0 |
338 | } |
384 | } |
339 | |
385 | |
340 | test-flag-PROG() { |
386 | test-flag-PROG() { |
341 | local comp=$1 |
387 | local comp=$1 |
342 | local flags="$2" |
388 | local flag=$2 |
343 | |
389 | |
344 | [[ -z ${comp} || -z ${flags} ]] && \ |
390 | [[ -z ${comp} || -z ${flag} ]] && return 1 |
345 | return 1 |
|
|
346 | |
391 | |
|
|
392 | # use -c so we can test the assembler as well |
347 | local PROG=$(tc-get${comp}) |
393 | local PROG=$(tc-get${comp}) |
348 | ${PROG} ${flags} -S -o /dev/null -xc /dev/null \ |
394 | ${PROG} "${flag}" -c -o /dev/null -xc /dev/null \ |
349 | > /dev/null 2>&1 |
395 | > /dev/null 2>&1 |
350 | } |
396 | } |
351 | |
397 | |
352 | # Returns true if C compiler support given flag |
398 | # @FUNCTION: test-flag-CC |
|
|
399 | # @USAGE: <flag> |
|
|
400 | # @DESCRIPTION: |
|
|
401 | # Returns shell true if <flag> is supported by the C compiler, else returns shell false. |
353 | test-flag-CC() { test-flag-PROG "CC" "$1"; } |
402 | test-flag-CC() { test-flag-PROG "CC" "$1"; } |
354 | |
403 | |
355 | # Returns true if C++ compiler support given flag |
404 | # @FUNCTION: test-flag-CXX |
|
|
405 | # @USAGE: <flag> |
|
|
406 | # @DESCRIPTION: |
|
|
407 | # Returns shell true if <flag> is supported by the C++ compiler, else returns shell false. |
356 | test-flag-CXX() { test-flag-PROG "CXX" "$1"; } |
408 | test-flag-CXX() { test-flag-PROG "CXX" "$1"; } |
|
|
409 | |
|
|
410 | # @FUNCTION: test-flag-F77 |
|
|
411 | # @USAGE: <flag> |
|
|
412 | # @DESCRIPTION: |
|
|
413 | # Returns shell true if <flag> is supported by the Fortran 77 compiler, else returns shell false. |
|
|
414 | test-flag-F77() { test-flag-PROG "F77" "$1"; } |
|
|
415 | |
|
|
416 | # @FUNCTION: test-flag-FC |
|
|
417 | # @USAGE: <flag> |
|
|
418 | # @DESCRIPTION: |
|
|
419 | # Returns shell true if <flag> is supported by the Fortran 90 compiler, else returns shell false. |
|
|
420 | test-flag-FC() { test-flag-PROG "FC" "$1"; } |
357 | |
421 | |
358 | test-flags-PROG() { |
422 | test-flags-PROG() { |
359 | local comp=$1 |
423 | local comp=$1 |
360 | local flags |
424 | local flags |
361 | local x |
425 | local x |
362 | |
426 | |
363 | shift |
427 | shift |
364 | |
428 | |
365 | [[ -z ${comp} ]] && \ |
429 | [[ -z ${comp} ]] && return 1 |
366 | return 1 |
|
|
367 | |
430 | |
368 | for x in "$@" ; do |
431 | for x in "$@" ; do |
369 | test-flag-${comp} "${x}" && flags="${flags} ${x}" |
432 | test-flag-${comp} "${x}" && flags="${flags}${flags:+ }${x}" |
370 | done |
433 | done |
371 | |
434 | |
372 | echo "${flags}" |
435 | echo "${flags}" |
373 | |
436 | |
374 | # Just bail if we dont have any flags |
437 | # Just bail if we dont have any flags |
375 | [[ -n ${flags} ]] |
438 | [[ -n ${flags} ]] |
376 | } |
439 | } |
377 | |
440 | |
378 | # Returns (echo's) the given flags supported by the C compiler |
441 | # @FUNCTION: test-flags-CC |
|
|
442 | # @USAGE: <flags> |
|
|
443 | # @DESCRIPTION: |
|
|
444 | # Returns shell true if <flags> are supported by the C compiler, else returns shell false. |
379 | test-flags-CC() { test-flags-PROG "CC" "$@"; } |
445 | test-flags-CC() { test-flags-PROG "CC" "$@"; } |
380 | |
446 | |
381 | # Returns (echo's) the given flags supported by the C++ compiler |
447 | # @FUNCTION: test-flags-CXX |
|
|
448 | # @USAGE: <flags> |
|
|
449 | # @DESCRIPTION: |
|
|
450 | # Returns shell true if <flags> are supported by the C++ compiler, else returns shell false. |
382 | test-flags-CXX() { test-flags-PROG "CXX" "$@"; } |
451 | test-flags-CXX() { test-flags-PROG "CXX" "$@"; } |
383 | |
452 | |
|
|
453 | # @FUNCTION: test-flags-F77 |
|
|
454 | # @USAGE: <flags> |
|
|
455 | # @DESCRIPTION: |
|
|
456 | # Returns shell true if <flags> are supported by the Fortran 77 compiler, else returns shell false. |
|
|
457 | test-flags-F77() { test-flags-PROG "F77" "$@"; } |
|
|
458 | |
|
|
459 | # @FUNCTION: test-flags-FC |
|
|
460 | # @USAGE: <flags> |
|
|
461 | # @DESCRIPTION: |
|
|
462 | # Returns shell true if <flags> are supported by the Fortran 90 compiler, else returns shell false. |
|
|
463 | test-flags-FC() { test-flags-PROG "FC" "$@"; } |
|
|
464 | |
|
|
465 | # @FUNCTION: test-flags |
|
|
466 | # @USAGE: <flags> |
|
|
467 | # @DESCRIPTION: |
384 | # Short-hand that should hopefully work for both C and C++ compiler, but |
468 | # Short-hand that should hopefully work for both C and C++ compiler, but |
385 | # its really only present due to the append-flags() abomination. |
469 | # its really only present due to the append-flags() abomination. |
386 | test-flags() { test-flags-CC "$@"; } |
470 | test-flags() { test-flags-CC "$@"; } |
387 | |
471 | |
388 | # Depriciated, use test-flags() |
472 | # @FUNCTION: test_version_info |
389 | test_flag() { |
473 | # @USAGE: <version> |
390 | ewarn "test_flag: deprecated, please use test-flags()!" >&2 |
474 | # @DESCRIPTION: |
391 | |
475 | # Returns shell true if the current C compiler version matches <version>, else returns shell false. |
392 | test-flags-CC "$@" |
476 | # Accepts shell globs. |
393 | } |
|
|
394 | |
|
|
395 | test_version_info() { |
477 | test_version_info() { |
396 | if [[ $($(tc-getCC) --version 2>&1) == *$1* ]]; then |
478 | if [[ $($(tc-getCC) --version 2>&1) == *$1* ]]; then |
397 | return 0 |
479 | return 0 |
398 | else |
480 | else |
399 | return 1 |
481 | return 1 |
400 | fi |
482 | fi |
401 | } |
483 | } |
402 | |
484 | |
|
|
485 | # @FUNCTION: strip-unsupported-flags |
|
|
486 | # @DESCRIPTION: |
|
|
487 | # Strip {C,CXX,F,FC}FLAGS of any flags not supported by the active toolchain. |
403 | strip-unsupported-flags() { |
488 | strip-unsupported-flags() { |
404 | local x NEW_CFLAGS NEW_CXXFLAGS |
489 | export CFLAGS=$(test-flags-CC ${CFLAGS}) |
405 | |
490 | export CXXFLAGS=$(test-flags-CXX ${CXXFLAGS}) |
406 | for x in ${CFLAGS} ; do |
491 | export FFLAGS=$(test-flags-F77 ${FFLAGS}) |
407 | NEW_CFLAGS="${NEW_CFLAGS} $(test-flags ${x})" |
492 | export FCFLAGS=$(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 | } |
493 | } |
416 | |
494 | |
|
|
495 | # @FUNCTION: get-flag |
|
|
496 | # @USAGE: <flag> |
|
|
497 | # @DESCRIPTION: |
|
|
498 | # Find and echo the value for a particular flag. Accepts shell globs. |
417 | get-flag() { |
499 | get-flag() { |
418 | local f findflag="$1" |
500 | local f var findflag="$1" |
419 | |
501 | |
420 | # this code looks a little flaky but seems to work for |
502 | # this code looks a little flaky but seems to work for |
421 | # everything we want ... |
503 | # everything we want ... |
422 | # for example, if CFLAGS="-march=i686": |
504 | # for example, if CFLAGS="-march=i686": |
423 | # `get-flag -march` == "-march=i686" |
505 | # `get-flag -march` == "-march=i686" |
424 | # `get-flag march` == "i686" |
506 | # `get-flag march` == "i686" |
425 | for f in ${CFLAGS} ${CXXFLAGS} ; do |
507 | for var in $(all-flag-vars) ; do |
|
|
508 | for f in ${!var} ; do |
426 | if [ "${f/${findflag}}" != "${f}" ] ; then |
509 | if [ "${f/${findflag}}" != "${f}" ] ; then |
427 | printf "%s\n" "${f/-${findflag}=}" |
510 | printf "%s\n" "${f/-${findflag}=}" |
428 | return 0 |
511 | return 0 |
429 | fi |
512 | fi |
|
|
513 | done |
430 | done |
514 | done |
431 | return 1 |
515 | return 1 |
432 | } |
516 | } |
433 | |
517 | |
434 | # DEPRECATED - use gcc-specs-relro or gcc-specs-now from toolchain-funcs |
518 | # @FUNCTION: has_m64 |
435 | has_hardened() { |
519 | # @DESCRIPTION: |
436 | ewarn "has_hardened: deprecated, please use gcc-specs-{relro,now}()!" >&2 |
520 | # This doesn't test if the flag is accepted, it tests if the flag actually |
437 | |
521 | # WORKS. Non-multilib gcc will take both -m32 and -m64. If the flag works |
438 | test_version_info Hardened && return 0 |
522 | # 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) ${CFLAGS} -E -dM - | grep __SSP__) ]] || \ |
|
|
482 | gcc-specs-ssp |
|
|
483 | } |
|
|
484 | |
|
|
485 | has_m64() { |
523 | has_m64() { |
|
|
524 | eqawarn "${FUNCNAME}: don't use this anymore" |
|
|
525 | |
486 | # this doesnt test if the flag is accepted, it tests if the flag |
526 | # 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! |
527 | # actually -WORKS-. non-multilib gcc will take both -m32 and -m64! |
488 | # please dont replace this function with test_flag in some future |
528 | # please dont replace this function with test_flag in some future |
489 | # clean-up! |
529 | # clean-up! |
490 | |
530 | |
… | |
… | |
497 | [[ ${ret} != 1 ]] && return 0 |
537 | [[ ${ret} != 1 ]] && return 0 |
498 | return 1 |
538 | return 1 |
499 | } |
539 | } |
500 | |
540 | |
501 | has_m32() { |
541 | has_m32() { |
502 | # this doesnt test if the flag is accepted, it tests if the flag |
542 | die "${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 | [[ ${ret} != 1 ]] && return 0 |
|
|
516 | return 1 |
|
|
517 | } |
543 | } |
518 | |
544 | |
|
|
545 | # @FUNCTION: replace-sparc64-flags |
|
|
546 | # @DESCRIPTION: |
|
|
547 | # Sets mcpu to v8 and uses the original value as mtune if none specified. |
519 | replace-sparc64-flags() { |
548 | replace-sparc64-flags() { |
520 | local SPARC64_CPUS="ultrasparc3 ultrasparc v9" |
549 | local SPARC64_CPUS="ultrasparc3 ultrasparc v9" |
521 | |
550 | |
522 | if [ "${CFLAGS/mtune}" != "${CFLAGS}" ]; then |
551 | if [ "${CFLAGS/mtune}" != "${CFLAGS}" ]; then |
523 | for x in ${SPARC64_CPUS}; do |
552 | for x in ${SPARC64_CPUS}; do |
524 | CFLAGS="${CFLAGS/-mcpu=${x}/-mcpu=v8}" |
553 | CFLAGS="${CFLAGS/-mcpu=${x}/-mcpu=v8}" |
525 | done |
554 | done |
526 | else |
555 | else |
527 | for x in ${SPARC64_CPUS}; do |
556 | for x in ${SPARC64_CPUS}; do |
528 | CFLAGS="${CFLAGS/-mcpu=${x}/-mcpu=v8 -mtune=${x}}" |
557 | CFLAGS="${CFLAGS/-mcpu=${x}/-mcpu=v8 -mtune=${x}}" |
529 | done |
558 | done |
530 | fi |
559 | fi |
531 | |
560 | |
532 | if [ "${CXXFLAGS/mtune}" != "${CXXFLAGS}" ]; then |
561 | if [ "${CXXFLAGS/mtune}" != "${CXXFLAGS}" ]; then |
533 | for x in ${SPARC64_CPUS}; do |
562 | for x in ${SPARC64_CPUS}; do |
534 | CXXFLAGS="${CXXFLAGS/-mcpu=${x}/-mcpu=v8}" |
563 | CXXFLAGS="${CXXFLAGS/-mcpu=${x}/-mcpu=v8}" |
535 | done |
564 | done |
536 | else |
565 | else |
537 | for x in ${SPARC64_CPUS}; do |
566 | for x in ${SPARC64_CPUS}; do |
538 | CXXFLAGS="${CXXFLAGS/-mcpu=${x}/-mcpu=v8 -mtune=${x}}" |
567 | CXXFLAGS="${CXXFLAGS/-mcpu=${x}/-mcpu=v8 -mtune=${x}}" |
539 | done |
568 | done |
540 | fi |
569 | fi |
541 | |
570 | |
542 | export CFLAGS CXXFLAGS |
571 | export CFLAGS CXXFLAGS |
543 | } |
572 | } |
544 | |
573 | |
|
|
574 | # @FUNCTION: append-libs |
|
|
575 | # @USAGE: <libs> |
|
|
576 | # @DESCRIPTION: |
|
|
577 | # Add extra <libs> to the current LIBS. |
545 | append-ldflags() { |
578 | append-libs() { |
546 | [[ -z $* ]] && return 0 |
579 | [[ $# -eq 0 ]] && return 0 |
547 | export LDFLAGS="${LDFLAGS} $*" |
580 | local flag |
548 | return 0 |
581 | for flag in "$@"; do |
549 | } |
582 | [[ ${flag} == -l* ]] && flag=${flag#-l} |
|
|
583 | export LIBS="${LIBS} -l${flag}" |
|
|
584 | done |
550 | |
585 | |
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 |
586 | return 0 |
556 | } |
587 | } |
557 | |
588 | |
|
|
589 | # @FUNCTION: raw-ldflags |
|
|
590 | # @USAGE: [flags] |
|
|
591 | # @DESCRIPTION: |
558 | # Turn C style ldflags (-Wl,-foo) into straight ldflags - the results |
592 | # Turn C style ldflags (-Wl,-foo) into straight ldflags - the results |
559 | # are suitable for passing directly to 'ld'; note LDFLAGS is usually passed |
593 | # are suitable for passing directly to 'ld'; note LDFLAGS is usually passed |
560 | # to gcc where it needs the '-Wl,'. |
594 | # to gcc where it needs the '-Wl,'. |
|
|
595 | # |
|
|
596 | # If no flags are specified, then default to ${LDFLAGS}. |
561 | raw-ldflags() { |
597 | raw-ldflags() { |
562 | local x input="$@" |
598 | local x input="$@" |
563 | [[ -z ${input} ]] && input=${LDFLAGS} |
599 | [[ -z ${input} ]] && input=${LDFLAGS} |
564 | set -- |
600 | set -- |
565 | for x in ${input} ; do |
601 | for x in ${input} ; do |
|
|
602 | case ${x} in |
|
|
603 | -Wl,*) |
566 | x=${x#-Wl,} |
604 | x=${x#-Wl,} |
567 | set -- "$@" ${x//,/ } |
605 | set -- "$@" ${x//,/ } |
|
|
606 | ;; |
|
|
607 | *) # Assume it's a compiler driver flag, so throw it away #441808 |
|
|
608 | ;; |
|
|
609 | esac |
568 | done |
610 | done |
569 | echo "$@" |
611 | echo "$@" |
570 | } |
612 | } |
571 | |
613 | |
572 | # This is thanks to great work from Paul de Vrieze <gentoo-user@devrieze.net>, |
614 | # @FUNCTION: no-as-needed |
573 | # bug #9016. Also thanks to Jukka Salmi <salmi@gmx.net> (bug #13907) for more |
615 | # @RETURN: Flag to disable asneeded behavior for use with append-ldflags. |
574 | # fixes. |
616 | 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 |
617 | case $($(tc-getLD) -v 2>&1 </dev/null) in |
597 | *GNU* | *'with BFD'*) # GNU ld |
618 | *GNU*) # GNU ld |
598 | echo "-Wl,-z,now" ;; |
619 | 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 |
620 | esac |
609 | } |
621 | } |
|
|
622 | |
|
|
623 | fi |