| 1 | # Copyright 1999-2005 Gentoo Foundation |
1 | # Copyright 1999-2011 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 1.166 2012/01/14 08:22:13 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 | # |
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| 10 | #### filter-flags <flags> #### |
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| 11 | # Remove particular flags from C[XX]FLAGS |
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| 12 | # Matches only complete flags |
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| 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 | |
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| 93 | # C[XX]FLAGS that we allow in strip-flags |
18 | # {C,CXX,F,FC}FLAGS that we allow in strip-flags |
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19 | # Note: shell globs and character lists are allowed |
| 94 | setup-allowed-flags() { |
20 | setup-allowed-flags() { |
| 95 | if [[ -z ${ALLOWED_FLAGS} ]] ; then |
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| 96 | export ALLOWED_FLAGS="-pipe" |
21 | ALLOWED_FLAGS="-pipe" |
| 97 | export ALLOWED_FLAGS="${ALLOWED_FLAGS} -O -O0 -O1 -O2 -mcpu -march -mtune" |
22 | ALLOWED_FLAGS+=" -O -O1 -O2 -Os -mcpu -march -mtune" |
| 98 | export ALLOWED_FLAGS="${ALLOWED_FLAGS} -fstack-protector -fstack-protector-all" |
23 | ALLOWED_FLAGS+=" -fstack-protector -fstack-protector-all" |
| 99 | export ALLOWED_FLAGS="${ALLOWED_FLAGS} -fbounds-checking -fno-bounds-checking" |
24 | ALLOWED_FLAGS+=" -fbounds-checking -fno-strict-overflow" |
| 100 | export ALLOWED_FLAGS="${ALLOWED_FLAGS} -fno-PIE -fno-pie -fno-unit-at-a-time" |
25 | ALLOWED_FLAGS+=" -fno-PIE -fno-pie -fno-unit-at-a-time" |
| 101 | export ALLOWED_FLAGS="${ALLOWED_FLAGS} -g -g0 -g1 -g2 -g3 -ggdb -ggdb0 -ggdb1 -ggdb2 -ggdb3" |
26 | ALLOWED_FLAGS+=" -g -g[0-9] -ggdb -ggdb[0-9] -gstabs -gstabs+" |
| 102 | fi |
27 | ALLOWED_FLAGS+=" -fno-ident -fpermissive" |
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28 | ALLOWED_FLAGS+=" -W* -w" |
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29 | |
| 103 | # allow a bunch of flags that negate features / control ABI |
30 | # allow a bunch of flags that negate features / control ABI |
| 104 | ALLOWED_FLAGS="${ALLOWED_FLAGS} -fno-stack-protector -fno-stack-protector-all" |
31 | ALLOWED_FLAGS+=" -fno-stack-protector -fno-stack-protector-all \ |
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32 | -fno-strict-aliasing -fno-bounds-checking -fstrict-overflow \ |
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33 | -fno-omit-frame-pointer" |
| 105 | ALLOWED_FLAGS="${ALLOWED_FLAGS} -mregparm -mno-app-regs -mapp-regs \ |
34 | ALLOWED_FLAGS+=" -mregparm -mno-app-regs -mapp-regs -mno-mmx -mno-sse \ |
| 106 | -mno-mmx -mno-sse -mno-sse2 -mno-sse3 -mno-3dnow \ |
35 | -mno-sse2 -mno-sse3 -mno-ssse3 -mno-sse4 -mno-sse4.1 -mno-sse4.2 \ |
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36 | -mno-avx -mno-aes -mno-pclmul -mno-sse4a -mno-3dnow -mno-popcnt \ |
| 107 | -mips1 -mips2 -mips3 -mips4 -mips32 -mips64 -mips16 \ |
37 | -mno-abm -mips1 -mips2 -mips3 -mips4 -mips32 -mips64 -mips16 -mplt \ |
| 108 | -msoft-float -mno-soft-float -mhard-float -mno-hard-float -mfpu \ |
38 | -msoft-float -mno-soft-float -mhard-float -mno-hard-float -mfpu \ |
| 109 | -mieee -mieee-with-inexact \ |
39 | -mieee -mieee-with-inexact -mschedule -mfloat-gprs -mspe -mno-spe \ |
| 110 | -mtls-direct-seg-refs -mno-tls-direct-seg-refs \ |
40 | -mtls-direct-seg-refs -mno-tls-direct-seg-refs -mflat -mno-flat \ |
| 111 | -mflat -mno-flat -mno-faster-structs -mfaster-structs \ |
41 | -mno-faster-structs -mfaster-structs -m32 -m64 -mx32 -mabi \ |
| 112 | -m32 -m64 -mabi -mlittle-endian -mbig-endian -EL -EB -fPIC \ |
42 | -mlittle-endian -mbig-endian -EL -EB -fPIC -mlive-g0 -mcmodel \ |
| 113 | -mlive-g0 -mcmodel -mstack-bias -mno-stack-bias" |
43 | -mstack-bias -mno-stack-bias -msecure-plt -m*-toc -D* -U*" |
| 114 | |
44 | |
| 115 | # C[XX]FLAGS that we are think is ok, but needs testing |
45 | # 4.5 |
| 116 | # NOTE: currently -Os have issues with gcc3 and K6* arch's |
46 | ALLOWED_FLAGS+=" -mno-fma4 -mno-movbe -mno-xop -mno-lwp" |
| 117 | export UNSTABLE_FLAGS="-Os -O3 -freorder-blocks" |
47 | # 4.6 |
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48 | ALLOWED_FLAGS+=" -mno-fsgsbase -mno-rdrnd -mno-f16c -mno-bmi -mno-tbm" |
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49 | |
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50 | export ALLOWED_FLAGS |
| 118 | return 0 |
51 | return 0 |
| 119 | } |
52 | } |
| 120 | |
53 | |
| 121 | # inverted filters for hardened compiler. This is trying to unpick |
54 | # inverted filters for hardened compiler. This is trying to unpick |
| 122 | # the hardened compiler defaults. |
55 | # the hardened compiler defaults. |
| … | |
… | |
| 130 | -fPIC|-fpic|-fPIE|-fpie|-Wl,pie|-pie) |
63 | -fPIC|-fpic|-fPIE|-fpie|-Wl,pie|-pie) |
| 131 | gcc-specs-pie || continue |
64 | gcc-specs-pie || continue |
| 132 | is-flagq -nopie || append-flags -nopie;; |
65 | is-flagq -nopie || append-flags -nopie;; |
| 133 | -fstack-protector) |
66 | -fstack-protector) |
| 134 | gcc-specs-ssp || continue |
67 | gcc-specs-ssp || continue |
| 135 | is-flagq -fno-stack-protector || append-flags -fno-stack-protector;; |
68 | is-flagq -fno-stack-protector || append-flags $(test-flags -fno-stack-protector);; |
| 136 | -fstack-protector-all) |
69 | -fstack-protector-all) |
| 137 | gcc-specs-ssp-to-all || continue |
70 | gcc-specs-ssp-to-all || continue |
| 138 | is-flagq -fno-stack-protector-all || append-flags -fno-stack-protector-all;; |
71 | is-flagq -fno-stack-protector-all || append-flags $(test-flags -fno-stack-protector-all);; |
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72 | -fno-strict-overflow) |
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73 | gcc-specs-nostrict || continue |
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74 | is-flagq -fstrict-overflow || append-flags $(test-flags -fstrict-overflow);; |
| 139 | esac |
75 | esac |
| 140 | done |
76 | done |
| 141 | } |
77 | } |
| 142 | |
78 | |
| 143 | # Remove occurrences of strings from variable given in $1 |
79 | # Remove occurrences of strings from variable given in $1 |
| … | |
… | |
| 158 | eval new\[\${\#new\[@]}]=\${f} |
94 | eval new\[\${\#new\[@]}]=\${f} |
| 159 | done |
95 | done |
| 160 | eval export ${VAR}=\${new\[*]} |
96 | eval export ${VAR}=\${new\[*]} |
| 161 | } |
97 | } |
| 162 | |
98 | |
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99 | # @FUNCTION: filter-flags |
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100 | # @USAGE: <flags> |
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101 | # @DESCRIPTION: |
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102 | # Remove particular <flags> from {C,CPP,CXX,F,FC,LD}FLAGS. Accepts shell globs. |
| 163 | filter-flags() { |
103 | filter-flags() { |
| 164 | _filter-hardened "$@" |
104 | _filter-hardened "$@" |
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105 | local v |
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106 | for v in C CPP CXX F FC LD ; do |
| 165 | _filter-var CFLAGS "$@" |
107 | _filter-var ${v}FLAGS "$@" |
| 166 | _filter-var CXXFLAGS "$@" |
108 | done |
| 167 | return 0 |
109 | return 0 |
| 168 | } |
110 | } |
| 169 | |
111 | |
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112 | # @FUNCTION: filter-lfs-flags |
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113 | # @DESCRIPTION: |
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114 | # Remove flags that enable Large File Support. |
| 170 | filter-lfs-flags() { |
115 | filter-lfs-flags() { |
| 171 | [[ -n $@ ]] && die "filter-lfs-flags takes no arguments" |
116 | [[ $# -ne 0 ]] && die "filter-lfs-flags takes no arguments" |
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117 | # http://www.gnu.org/s/libc/manual/html_node/Feature-Test-Macros.html |
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118 | # _LARGEFILE_SOURCE: enable support for new LFS funcs (ftello/etc...) |
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119 | # _LARGEFILE64_SOURCE: enable support for 64bit variants (off64_t/fseeko64/etc...) |
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120 | # _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 |
121 | filter-flags -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE |
| 173 | } |
122 | } |
| 174 | |
123 | |
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124 | # @FUNCTION: append-cppflags |
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125 | # @USAGE: <flags> |
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126 | # @DESCRIPTION: |
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127 | # Add extra <flags> to the current CPPFLAGS. |
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128 | append-cppflags() { |
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129 | [[ $# -eq 0 ]] && return 0 |
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130 | export CPPFLAGS="${CPPFLAGS} $*" |
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131 | return 0 |
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132 | } |
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133 | |
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134 | # @FUNCTION: append-cflags |
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135 | # @USAGE: <flags> |
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136 | # @DESCRIPTION: |
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137 | # Add extra <flags> to the current CFLAGS. |
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138 | append-cflags() { |
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139 | [[ $# -eq 0 ]] && return 0 |
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140 | export CFLAGS=$(test-flags-CC ${CFLAGS} "$@") |
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141 | return 0 |
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142 | } |
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143 | |
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144 | # @FUNCTION: append-cxxflags |
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145 | # @USAGE: <flags> |
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146 | # @DESCRIPTION: |
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147 | # Add extra <flags> to the current CXXFLAGS. |
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148 | append-cxxflags() { |
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149 | [[ $# -eq 0 ]] && return 0 |
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150 | export CXXFLAGS=$(test-flags-CXX ${CXXFLAGS} "$@") |
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151 | return 0 |
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152 | } |
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153 | |
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154 | # @FUNCTION: append-fflags |
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155 | # @USAGE: <flags> |
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156 | # @DESCRIPTION: |
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157 | # Add extra <flags> to the current {F,FC}FLAGS. |
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158 | append-fflags() { |
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159 | [[ $# -eq 0 ]] && return 0 |
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160 | export FFLAGS=$(test-flags-F77 ${FFLAGS} "$@") |
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161 | export FCFLAGS=$(test-flags-FC ${FCFLAGS} "$@") |
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162 | return 0 |
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163 | } |
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164 | |
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165 | # @FUNCTION: append-lfs-flags |
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166 | # @DESCRIPTION: |
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167 | # Add flags that enable Large File Support. |
| 175 | append-lfs-flags() { |
168 | append-lfs-flags() { |
| 176 | [[ -n $@ ]] && die "append-lfs-flags takes no arguments" |
169 | [[ $# -ne 0 ]] && die "append-lfs-flags takes no arguments" |
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170 | # 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 |
171 | append-cppflags -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE |
| 178 | } |
172 | } |
| 179 | |
173 | |
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174 | # @FUNCTION: append-flags |
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175 | # @USAGE: <flags> |
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176 | # @DESCRIPTION: |
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177 | # Add extra <flags> to your current {C,CXX,F,FC}FLAGS. |
| 180 | append-flags() { |
178 | append-flags() { |
| 181 | [[ -z $* ]] && return 0 |
179 | [[ $# -eq 0 ]] && return 0 |
| 182 | export CFLAGS="${CFLAGS} $*" |
180 | append-cflags "$@" |
| 183 | export CXXFLAGS="${CXXFLAGS} $*" |
181 | append-cxxflags "$@" |
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182 | append-fflags "$@" |
| 184 | return 0 |
183 | return 0 |
| 185 | } |
184 | } |
| 186 | |
185 | |
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186 | # @FUNCTION: replace-flags |
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187 | # @USAGE: <old> <new> |
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188 | # @DESCRIPTION: |
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189 | # Replace the <old> flag with <new>. Accepts shell globs for <old>. |
| 187 | replace-flags() { |
190 | replace-flags() { |
| 188 | [[ $# != 2 ]] \ |
191 | [[ $# != 2 ]] \ |
| 189 | && echo && eerror "Usage: replace-flags <old flag> <new flag>" \ |
192 | && echo && eerror "Usage: replace-flags <old flag> <new flag>" \ |
| 190 | && die "replace-flags takes 2 arguments, not $#" |
193 | && die "replace-flags takes 2 arguments, not $#" |
| 191 | |
194 | |
| 192 | local f fset |
195 | local f fset |
| 193 | declare -a new_CFLAGS new_CXXFLAGS |
196 | declare -a new_CFLAGS new_CXXFLAGS new_FFLAGS new_FCFLAGS |
| 194 | |
197 | |
| 195 | for fset in CFLAGS CXXFLAGS; do |
198 | for fset in CFLAGS CXXFLAGS FFLAGS FCFLAGS; do |
| 196 | # Looping over the flags instead of using a global |
199 | # Looping over the flags instead of using a global |
| 197 | # substitution ensures that we're working with flag atoms. |
200 | # substitution ensures that we're working with flag atoms. |
| 198 | # Otherwise globs like -O* have the potential to wipe out the |
201 | # Otherwise globs like -O* have the potential to wipe out the |
| 199 | # list of flags. |
202 | # list of flags. |
| 200 | for f in ${!fset}; do |
203 | for f in ${!fset}; do |
| … | |
… | |
| 206 | done |
209 | done |
| 207 | |
210 | |
| 208 | return 0 |
211 | return 0 |
| 209 | } |
212 | } |
| 210 | |
213 | |
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214 | # @FUNCTION: replace-cpu-flags |
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215 | # @USAGE: <old> <new> |
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216 | # @DESCRIPTION: |
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217 | # Replace cpu flags (like -march/-mcpu/-mtune) that select the <old> cpu |
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218 | # with flags that select the <new> cpu. Accepts shell globs for <old>. |
| 211 | replace-cpu-flags() { |
219 | replace-cpu-flags() { |
| 212 | local newcpu="$#" ; newcpu="${!newcpu}" |
220 | local newcpu="$#" ; newcpu="${!newcpu}" |
| 213 | while [ $# -gt 1 ] ; do |
221 | while [ $# -gt 1 ] ; do |
| 214 | # quote to make sure that no globbing is done (particularly on |
222 | # quote to make sure that no globbing is done (particularly on |
| 215 | # ${oldcpu} prior to calling replace-flags |
223 | # ${oldcpu}) prior to calling replace-flags |
| 216 | replace-flags "-march=${1}" "-march=${newcpu}" |
224 | replace-flags "-march=${1}" "-march=${newcpu}" |
| 217 | replace-flags "-mcpu=${1}" "-mcpu=${newcpu}" |
225 | replace-flags "-mcpu=${1}" "-mcpu=${newcpu}" |
| 218 | replace-flags "-mtune=${1}" "-mtune=${newcpu}" |
226 | replace-flags "-mtune=${1}" "-mtune=${newcpu}" |
| 219 | shift |
227 | shift |
| 220 | done |
228 | done |
| 221 | return 0 |
229 | return 0 |
| 222 | } |
230 | } |
| 223 | |
231 | |
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232 | _is_flagq() { |
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233 | local x |
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234 | for x in ${!1} ; do |
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235 | [[ ${x} == $2 ]] && return 0 |
|
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236 | done |
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237 | return 1 |
|
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238 | } |
|
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239 | |
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240 | # @FUNCTION: is-flagq |
|
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241 | # @USAGE: <flag> |
|
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242 | # @DESCRIPTION: |
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243 | # Returns shell true if <flag> is in {C,CXX,F,FC}FLAGS, else returns shell false. Accepts shell globs. |
| 224 | is-flagq() { |
244 | is-flagq() { |
| 225 | local x |
245 | [[ -n $2 ]] && die "Usage: is-flag <flag>" |
| 226 | |
246 | _is_flagq CFLAGS $1 || _is_flagq CXXFLAGS $1 || _is_flagq FFLAGS $1 || _is_flagq FCFLAGS $1 |
| 227 | for x in ${CFLAGS} ${CXXFLAGS} ; do |
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| 228 | # Note this should work with globs like -mcpu=ultrasparc* |
|
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| 229 | if [[ ${x} == ${1} ]]; then |
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| 230 | return 0 |
|
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| 231 | fi |
|
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| 232 | done |
|
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| 233 | return 1 |
|
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| 234 | } |
247 | } |
| 235 | |
248 | |
|
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249 | # @FUNCTION: is-flag |
|
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250 | # @USAGE: <flag> |
|
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251 | # @DESCRIPTION: |
|
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252 | # Echo's "true" if flag is set in {C,CXX,F,FC}FLAGS. Accepts shell globs. |
| 236 | is-flag() { |
253 | is-flag() { |
| 237 | if is-flagq ${1}; then |
254 | is-flagq "$@" && echo true |
| 238 | echo true |
|
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| 239 | return 0 |
|
|
| 240 | fi |
|
|
| 241 | return 1 |
|
|
| 242 | } |
255 | } |
| 243 | |
256 | |
|
|
257 | # @FUNCTION: is-ldflagq |
|
|
258 | # @USAGE: <flag> |
|
|
259 | # @DESCRIPTION: |
|
|
260 | # Returns shell true if <flag> is in LDFLAGS, else returns shell false. Accepts shell globs. |
| 244 | is-ldflagq() { |
261 | is-ldflagq() { |
| 245 | local x |
262 | [[ -n $2 ]] && die "Usage: is-ldflag <flag>" |
| 246 | |
263 | _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 | } |
264 | } |
| 255 | |
265 | |
|
|
266 | # @FUNCTION: is-ldflag |
|
|
267 | # @USAGE: <flag> |
|
|
268 | # @DESCRIPTION: |
|
|
269 | # Echo's "true" if flag is set in LDFLAGS. Accepts shell globs. |
| 256 | is-ldflag() { |
270 | is-ldflag() { |
| 257 | if is-ldflagq ${1}; then |
271 | is-ldflagq "$@" && echo true |
| 258 | echo true |
|
|
| 259 | return 0 |
|
|
| 260 | fi |
|
|
| 261 | return 1 |
|
|
| 262 | } |
272 | } |
| 263 | |
273 | |
|
|
274 | # @FUNCTION: filter-mfpmath |
|
|
275 | # @USAGE: <math types> |
|
|
276 | # @DESCRIPTION: |
|
|
277 | # Remove specified math types from the fpmath flag. For example, if the user |
|
|
278 | # has -mfpmath=sse,386, running `filter-mfpmath sse` will leave the user with |
|
|
279 | # -mfpmath=386. |
| 264 | filter-mfpmath() { |
280 | filter-mfpmath() { |
| 265 | local orig_mfpmath new_math prune_math |
281 | local orig_mfpmath new_math prune_math |
| 266 | |
282 | |
| 267 | # save the original -mfpmath flag |
283 | # save the original -mfpmath flag |
| 268 | orig_mfpmath="`get-flag -mfpmath`" |
284 | orig_mfpmath=$(get-flag -mfpmath) |
| 269 | # get the value of the current -mfpmath flag |
285 | # get the value of the current -mfpmath flag |
| 270 | new_math=" `get-flag mfpmath | tr , ' '` " |
286 | new_math=$(get-flag mfpmath) |
|
|
287 | new_math=" ${new_math//,/ } " |
| 271 | # figure out which math values are to be removed |
288 | # figure out which math values are to be removed |
| 272 | prune_math="" |
289 | prune_math="" |
| 273 | for prune_math in "$@" ; do |
290 | for prune_math in "$@" ; do |
| 274 | new_math="${new_math/ ${prune_math} / }" |
291 | new_math=${new_math/ ${prune_math} / } |
| 275 | done |
292 | done |
| 276 | new_math="`echo ${new_math:1:${#new_math}-2} | tr ' ' ,`" |
293 | new_math=$(echo ${new_math}) |
|
|
294 | new_math=${new_math// /,} |
| 277 | |
295 | |
| 278 | if [ -z "${new_math}" ] ; then |
296 | if [[ -z ${new_math} ]] ; then |
| 279 | # if we're removing all user specified math values are |
297 | # if we're removing all user specified math values are |
| 280 | # slated for removal, then we just filter the flag |
298 | # slated for removal, then we just filter the flag |
| 281 | filter-flags ${orig_mfpmath} |
299 | filter-flags ${orig_mfpmath} |
| 282 | else |
300 | else |
| 283 | # if we only want to filter some of the user specified |
301 | # if we only want to filter some of the user specified |
| … | |
… | |
| 285 | replace-flags ${orig_mfpmath} -mfpmath=${new_math} |
303 | replace-flags ${orig_mfpmath} -mfpmath=${new_math} |
| 286 | fi |
304 | fi |
| 287 | return 0 |
305 | return 0 |
| 288 | } |
306 | } |
| 289 | |
307 | |
|
|
308 | # @FUNCTION: strip-flags |
|
|
309 | # @DESCRIPTION: |
|
|
310 | # Strip C[XX]FLAGS of everything except known good/safe flags. |
| 290 | strip-flags() { |
311 | strip-flags() { |
| 291 | local x y flag NEW_CFLAGS NEW_CXXFLAGS |
312 | local x y flag NEW_CFLAGS NEW_CXXFLAGS NEW_FFLAGS NEW_FCFLAGS |
| 292 | |
313 | |
| 293 | setup-allowed-flags |
314 | setup-allowed-flags |
| 294 | |
315 | |
| 295 | local NEW_CFLAGS="" |
316 | local NEW_CFLAGS="" |
| 296 | local NEW_CXXFLAGS="" |
317 | local NEW_CXXFLAGS="" |
| 297 | |
318 | local NEW_FFLAGS="" |
| 298 | # Allow unstable C[XX]FLAGS if we are using unstable profile ... |
319 | local NEW_FCFLAGS="" |
| 299 | if has ~$(tc-arch) ${ACCEPT_KEYWORDS} ; then |
|
|
| 300 | ALLOWED_FLAGS="${ALLOWED_FLAGS} ${UNSTABLE_FLAGS}" |
|
|
| 301 | fi |
|
|
| 302 | |
320 | |
| 303 | set -f # disable pathname expansion |
321 | set -f # disable pathname expansion |
| 304 | |
322 | |
| 305 | for x in ${CFLAGS}; do |
323 | for x in ${CFLAGS}; do |
| 306 | for y in ${ALLOWED_FLAGS}; do |
324 | for y in ${ALLOWED_FLAGS}; do |
| … | |
… | |
| 320 | break |
338 | break |
| 321 | fi |
339 | fi |
| 322 | done |
340 | done |
| 323 | done |
341 | done |
| 324 | |
342 | |
|
|
343 | for x in ${FFLAGS}; do |
|
|
344 | for y in ${ALLOWED_FLAGS}; do |
|
|
345 | flag=${x%%=*} |
|
|
346 | if [ "${flag%%${y}}" = "" ] ; then |
|
|
347 | NEW_FFLAGS="${NEW_FFLAGS} ${x}" |
|
|
348 | break |
|
|
349 | fi |
|
|
350 | done |
|
|
351 | done |
|
|
352 | |
|
|
353 | for x in ${FCFLAGS}; do |
|
|
354 | for y in ${ALLOWED_FLAGS}; do |
|
|
355 | flag=${x%%=*} |
|
|
356 | if [ "${flag%%${y}}" = "" ] ; then |
|
|
357 | NEW_FCFLAGS="${NEW_FCFLAGS} ${x}" |
|
|
358 | break |
|
|
359 | fi |
|
|
360 | done |
|
|
361 | done |
|
|
362 | |
| 325 | # In case we filtered out all optimization flags fallback to -O2 |
363 | # In case we filtered out all optimization flags fallback to -O2 |
| 326 | if [ "${CFLAGS/-O}" != "${CFLAGS}" -a "${NEW_CFLAGS/-O}" = "${NEW_CFLAGS}" ]; then |
364 | if [ "${CFLAGS/-O}" != "${CFLAGS}" -a "${NEW_CFLAGS/-O}" = "${NEW_CFLAGS}" ]; then |
| 327 | NEW_CFLAGS="${NEW_CFLAGS} -O2" |
365 | NEW_CFLAGS="${NEW_CFLAGS} -O2" |
| 328 | fi |
366 | fi |
| 329 | if [ "${CXXFLAGS/-O}" != "${CXXFLAGS}" -a "${NEW_CXXFLAGS/-O}" = "${NEW_CXXFLAGS}" ]; then |
367 | if [ "${CXXFLAGS/-O}" != "${CXXFLAGS}" -a "${NEW_CXXFLAGS/-O}" = "${NEW_CXXFLAGS}" ]; then |
| 330 | NEW_CXXFLAGS="${NEW_CXXFLAGS} -O2" |
368 | NEW_CXXFLAGS="${NEW_CXXFLAGS} -O2" |
| 331 | fi |
369 | fi |
|
|
370 | if [ "${FFLAGS/-O}" != "${FFLAGS}" -a "${NEW_FFLAGS/-O}" = "${NEW_FFLAGS}" ]; then |
|
|
371 | NEW_FFLAGS="${NEW_FFLAGS} -O2" |
|
|
372 | fi |
|
|
373 | if [ "${FCFLAGS/-O}" != "${FCFLAGS}" -a "${NEW_FCFLAGS/-O}" = "${NEW_FCFLAGS}" ]; then |
|
|
374 | NEW_FCFLAGS="${NEW_FCFLAGS} -O2" |
|
|
375 | fi |
| 332 | |
376 | |
| 333 | set +f # re-enable pathname expansion |
377 | set +f # re-enable pathname expansion |
| 334 | |
378 | |
| 335 | export CFLAGS="${NEW_CFLAGS}" |
379 | export CFLAGS="${NEW_CFLAGS}" |
| 336 | export CXXFLAGS="${NEW_CXXFLAGS}" |
380 | export CXXFLAGS="${NEW_CXXFLAGS}" |
|
|
381 | export FFLAGS="${NEW_FFLAGS}" |
|
|
382 | export FCFLAGS="${NEW_FCFLAGS}" |
| 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 flags="$2" |
| 343 | |
389 | |
| 344 | [[ -z ${comp} || -z ${flags} ]] && \ |
390 | [[ -z ${comp} || -z ${flags} ]] && return 1 |
| 345 | return 1 |
|
|
| 346 | |
391 | |
|
|
392 | # use -c so we can test the assembler as well |
| 347 | local PROG=$(tc-get${comp}) |
393 | local PROG=$(tc-get${comp}) |
| 348 | ${PROG} ${flags} -S -o /dev/null -xc /dev/null \ |
394 | ${PROG} ${flags} -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 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 f in ${CFLAGS} ${CXXFLAGS} ${FFLAGS} ${FCFLAGS} ; do |
| 426 | if [ "${f/${findflag}}" != "${f}" ] ; then |
508 | if [ "${f/${findflag}}" != "${f}" ] ; then |
| 427 | printf "%s\n" "${f/-${findflag}=}" |
509 | printf "%s\n" "${f/-${findflag}=}" |
| 428 | return 0 |
510 | return 0 |
| 429 | fi |
511 | fi |
| 430 | done |
512 | done |
| 431 | return 1 |
513 | return 1 |
| 432 | } |
514 | } |
| 433 | |
515 | |
| 434 | # DEPRECATED - use gcc-specs-relro or gcc-specs-now from toolchain-funcs |
516 | # @FUNCTION: has_m64 |
| 435 | has_hardened() { |
517 | # @DESCRIPTION: |
| 436 | ewarn "has_hardened: deprecated, please use gcc-specs-{relro,now}()!" >&2 |
518 | # This doesn't test if the flag is accepted, it tests if the flag actually |
| 437 | |
519 | # WORKS. Non-multilib gcc will take both -m32 and -m64. If the flag works |
| 438 | test_version_info Hardened && return 0 |
520 | # 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) ${CFLAGS} -E -dM - | grep __SSP__) ]] || \ |
|
|
| 482 | gcc-specs-ssp |
|
|
| 483 | } |
|
|
| 484 | |
|
|
| 485 | has_m64() { |
521 | has_m64() { |
|
|
522 | eqawarn "${FUNCNAME}: don't use this anymore" |
|
|
523 | |
| 486 | # this doesnt test if the flag is accepted, it tests if the flag |
524 | # 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! |
525 | # actually -WORKS-. non-multilib gcc will take both -m32 and -m64! |
| 488 | # please dont replace this function with test_flag in some future |
526 | # please dont replace this function with test_flag in some future |
| 489 | # clean-up! |
527 | # clean-up! |
| 490 | |
528 | |
| … | |
… | |
| 497 | [[ ${ret} != 1 ]] && return 0 |
535 | [[ ${ret} != 1 ]] && return 0 |
| 498 | return 1 |
536 | return 1 |
| 499 | } |
537 | } |
| 500 | |
538 | |
| 501 | has_m32() { |
539 | has_m32() { |
| 502 | # this doesnt test if the flag is accepted, it tests if the flag |
540 | die "${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 | [[ ${ret} != 1 ]] && return 0 |
|
|
| 516 | return 1 |
|
|
| 517 | } |
541 | } |
| 518 | |
542 | |
|
|
543 | # @FUNCTION: replace-sparc64-flags |
|
|
544 | # @DESCRIPTION: |
|
|
545 | # Sets mcpu to v8 and uses the original value as mtune if none specified. |
| 519 | replace-sparc64-flags() { |
546 | replace-sparc64-flags() { |
| 520 | local SPARC64_CPUS="ultrasparc3 ultrasparc v9" |
547 | local SPARC64_CPUS="ultrasparc3 ultrasparc v9" |
| 521 | |
548 | |
| 522 | if [ "${CFLAGS/mtune}" != "${CFLAGS}" ]; then |
549 | if [ "${CFLAGS/mtune}" != "${CFLAGS}" ]; then |
| 523 | for x in ${SPARC64_CPUS}; do |
550 | for x in ${SPARC64_CPUS}; do |
| 524 | CFLAGS="${CFLAGS/-mcpu=${x}/-mcpu=v8}" |
551 | CFLAGS="${CFLAGS/-mcpu=${x}/-mcpu=v8}" |
| 525 | done |
552 | done |
| 526 | else |
553 | else |
| 527 | for x in ${SPARC64_CPUS}; do |
554 | for x in ${SPARC64_CPUS}; do |
| 528 | CFLAGS="${CFLAGS/-mcpu=${x}/-mcpu=v8 -mtune=${x}}" |
555 | CFLAGS="${CFLAGS/-mcpu=${x}/-mcpu=v8 -mtune=${x}}" |
| 529 | done |
556 | done |
| 530 | fi |
557 | fi |
| 531 | |
558 | |
| 532 | if [ "${CXXFLAGS/mtune}" != "${CXXFLAGS}" ]; then |
559 | if [ "${CXXFLAGS/mtune}" != "${CXXFLAGS}" ]; then |
| 533 | for x in ${SPARC64_CPUS}; do |
560 | for x in ${SPARC64_CPUS}; do |
| 534 | CXXFLAGS="${CXXFLAGS/-mcpu=${x}/-mcpu=v8}" |
561 | CXXFLAGS="${CXXFLAGS/-mcpu=${x}/-mcpu=v8}" |
| 535 | done |
562 | done |
| 536 | else |
563 | else |
| 537 | for x in ${SPARC64_CPUS}; do |
564 | for x in ${SPARC64_CPUS}; do |
| 538 | CXXFLAGS="${CXXFLAGS/-mcpu=${x}/-mcpu=v8 -mtune=${x}}" |
565 | CXXFLAGS="${CXXFLAGS/-mcpu=${x}/-mcpu=v8 -mtune=${x}}" |
| 539 | done |
566 | done |
| 540 | fi |
567 | fi |
| 541 | |
568 | |
| 542 | export CFLAGS CXXFLAGS |
569 | export CFLAGS CXXFLAGS |
| 543 | } |
570 | } |
| 544 | |
571 | |
|
|
572 | # @FUNCTION: append-libs |
|
|
573 | # @USAGE: <libs> |
|
|
574 | # @DESCRIPTION: |
|
|
575 | # Add extra <libs> to the current LIBS. |
|
|
576 | append-libs() { |
|
|
577 | [[ $# -eq 0 ]] && return 0 |
|
|
578 | local flag |
|
|
579 | for flag in "$@"; do |
|
|
580 | [[ ${flag} == -l* ]] && flag=${flag#-l} |
|
|
581 | export LIBS="${LIBS} -l${flag}" |
|
|
582 | done |
|
|
583 | |
|
|
584 | return 0 |
|
|
585 | } |
|
|
586 | |
|
|
587 | # @FUNCTION: append-ldflags |
|
|
588 | # @USAGE: <flags> |
|
|
589 | # @DESCRIPTION: |
|
|
590 | # Add extra <flags> to the current LDFLAGS. |
| 545 | append-ldflags() { |
591 | append-ldflags() { |
| 546 | [[ -z $* ]] && return 0 |
592 | [[ $# -eq 0 ]] && return 0 |
|
|
593 | local flag |
|
|
594 | for flag in "$@"; do |
|
|
595 | [[ ${flag} == -l* ]] && \ |
|
|
596 | ewarn "Appending a library link instruction (${flag}); libraries to link to should not be passed through LDFLAGS" |
|
|
597 | done |
|
|
598 | |
| 547 | export LDFLAGS="${LDFLAGS} $*" |
599 | export LDFLAGS="${LDFLAGS} $*" |
| 548 | return 0 |
600 | return 0 |
| 549 | } |
601 | } |
| 550 | |
602 | |
| 551 | # Remove flags from LDFLAGS - it's up to the ebuild to filter |
603 | # @FUNCTION: filter-ldflags |
| 552 | # CFLAGS and CXXFLAGS via filter-flags if they need to. |
604 | # @USAGE: <flags> |
|
|
605 | # @DESCRIPTION: |
|
|
606 | # Remove particular <flags> from LDFLAGS. Accepts shell globs. |
| 553 | filter-ldflags() { |
607 | filter-ldflags() { |
| 554 | _filter-var LDFLAGS "$@" |
608 | _filter-var LDFLAGS "$@" |
| 555 | return 0 |
609 | return 0 |
| 556 | } |
610 | } |
| 557 | |
611 | |
|
|
612 | # @FUNCTION: raw-ldflags |
|
|
613 | # @USAGE: [flags] |
|
|
614 | # @DESCRIPTION: |
| 558 | # Turn C style ldflags (-Wl,-foo) into straight ldflags - the results |
615 | # Turn C style ldflags (-Wl,-foo) into straight ldflags - the results |
| 559 | # are suitable for passing directly to 'ld'; note LDFLAGS is usually passed |
616 | # are suitable for passing directly to 'ld'; note LDFLAGS is usually passed |
| 560 | # to gcc where it needs the '-Wl,'. |
617 | # to gcc where it needs the '-Wl,'. |
|
|
618 | # |
|
|
619 | # If no flags are specified, then default to ${LDFLAGS}. |
| 561 | raw-ldflags() { |
620 | raw-ldflags() { |
| 562 | local x input="$@" |
621 | local x input="$@" |
| 563 | [[ -z ${input} ]] && input=${LDFLAGS} |
622 | [[ -z ${input} ]] && input=${LDFLAGS} |
| 564 | set -- |
623 | set -- |
| 565 | for x in ${input} ; do |
624 | for x in ${input} ; do |
| … | |
… | |
| 567 | set -- "$@" ${x//,/ } |
626 | set -- "$@" ${x//,/ } |
| 568 | done |
627 | done |
| 569 | echo "$@" |
628 | echo "$@" |
| 570 | } |
629 | } |
| 571 | |
630 | |
| 572 | # This is thanks to great work from Paul de Vrieze <gentoo-user@devrieze.net>, |
631 | # @FUNCTION: no-as-needed |
| 573 | # bug #9016. Also thanks to Jukka Salmi <salmi@gmx.net> (bug #13907) for more |
632 | # @RETURN: Flag to disable asneeded behavior for use with append-ldflags. |
| 574 | # fixes. |
633 | 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 |
634 | case $($(tc-getLD) -v 2>&1 </dev/null) in |
| 597 | *GNU* | *'with BFD'*) # GNU ld |
635 | *GNU*) # GNU ld |
| 598 | echo "-Wl,-z,now" ;; |
636 | 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 |
637 | esac |
| 609 | } |
638 | } |
|
|
639 | |
|
|
640 | fi |
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