| 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 1.104 2006/01/14 10:52:12 kevquinn Exp $ |
3 | # $Header: /var/cvsroot/gentoo-x86/eclass/flag-o-matic.eclass,v 1.165 2012/01/14 08:05:32 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 <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 | # |
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| 28 | #### strip-flags #### |
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| 29 | # Strip C[XX]FLAGS of everything except known |
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| 30 | # good options. |
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| 31 | # |
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| 32 | #### strip-unsupported-flags #### |
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| 33 | # Strip C[XX]FLAGS of any flags not supported by |
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| 34 | # installed version of gcc |
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| 35 | # |
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| 36 | #### get-flag <flag> #### |
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| 37 | # Find and echo the value for a particular flag |
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| 38 | # |
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| 39 | #### replace-sparc64-flags #### |
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| 40 | # Sets mcpu to v8 and uses the original value |
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| 41 | # as mtune if none specified. |
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| 42 | # |
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| 43 | #### filter-mfpmath <math types> #### |
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| 44 | # Remove specified math types from the fpmath specification |
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| 45 | # If the user has -mfpmath=sse,386, running `filter-mfpmath sse` |
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| 46 | # will leave the user with -mfpmath=386 |
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| 47 | # |
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| 48 | #### append-ldflags #### |
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| 49 | # Add extra flags to your current LDFLAGS |
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| 50 | # |
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| 51 | #### filter-ldflags <flags> #### |
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| 52 | # Remove particular flags from LDFLAGS |
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| 53 | # Matches only complete flags |
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| 54 | # |
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| 55 | #### fstack-flags #### |
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| 56 | # hooked function for hardened gcc that appends |
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| 57 | # -fno-stack-protector to {C,CXX,LD}FLAGS |
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| 58 | # when a package is filtering -fstack-protector, -fstack-protector-all |
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| 59 | # notice: modern automatic specs files will also suppress -fstack-protector-all |
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| 60 | # when only -fno-stack-protector is given |
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| 61 | # |
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| 62 | #### bindnow-flags #### |
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| 63 | # Returns the flags to enable "now" binding in the current selected linker. |
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| 64 | # |
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| 65 | ################ DEPRECATED functions ################ |
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| 66 | # The following are still present to avoid breaking existing |
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| 67 | # code more than necessary; however they are deprecated. Please |
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| 68 | # use gcc-specs-* from toolchain-funcs.eclass instead, if you |
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| 69 | # need to know which hardened techs are active in the compiler. |
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| 70 | # See bug #100974 |
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| 71 | # |
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| 72 | #### has_hardened #### |
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| 73 | # Returns true if the compiler has 'Hardened' in its version string, |
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| 74 | # (note; switched-spec vanilla compilers satisfy this condition) or |
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| 75 | # the specs file name contains 'hardened'. |
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| 76 | # |
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| 77 | #### has_pie #### |
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| 78 | # Returns true if the compiler by default or with current CFLAGS |
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| 79 | # builds position-independent code. |
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| 80 | # |
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| 81 | #### has_pic #### |
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| 82 | # Returns true if the compiler by default or with current CFLAGS |
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| 83 | # builds position-independent code. |
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| 84 | # |
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| 85 | #### has_ssp_all #### |
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| 86 | # Returns true if the compiler by default or with current CFLAGS |
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| 87 | # generates stack smash protections for all functions |
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| 88 | # |
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| 89 | #### has_ssp #### |
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| 90 | # Returns true if the compiler by default or with current CFLAGS |
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| 91 | # generates stack smash protections for most vulnerable functions |
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| 92 | # |
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| 93 | |
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| 94 | # 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 |
| 95 | setup-allowed-flags() { |
20 | setup-allowed-flags() { |
| 96 | if [[ -z ${ALLOWED_FLAGS} ]] ; then |
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| 97 | export ALLOWED_FLAGS="-pipe" |
21 | ALLOWED_FLAGS="-pipe" |
| 98 | export ALLOWED_FLAGS="${ALLOWED_FLAGS} -O -O0 -O1 -O2 -mcpu -march -mtune" |
22 | ALLOWED_FLAGS+=" -O -O1 -O2 -Os -mcpu -march -mtune" |
| 99 | export ALLOWED_FLAGS="${ALLOWED_FLAGS} -fstack-protector -fstack-protector-all" |
23 | ALLOWED_FLAGS+=" -fstack-protector -fstack-protector-all" |
| 100 | export ALLOWED_FLAGS="${ALLOWED_FLAGS} -fbounds-checking -fno-bounds-checking" |
24 | ALLOWED_FLAGS+=" -fbounds-checking -fno-strict-overflow" |
| 101 | export ALLOWED_FLAGS="${ALLOWED_FLAGS} -fno-pie -fno-unit-at-a-time" |
25 | ALLOWED_FLAGS+=" -fno-PIE -fno-pie -fno-unit-at-a-time" |
| 102 | export ALLOWED_FLAGS="${ALLOWED_FLAGS} -g -g0 -g1 -g2 -g3 -ggdb -ggdb0 -ggdb1 -ggdb2 -ggdb3" |
26 | ALLOWED_FLAGS+=" -g -g[0-9] -ggdb -ggdb[0-9] -gstabs -gstabs+" |
| 103 | fi |
27 | ALLOWED_FLAGS+=" -fno-ident -fpermissive" |
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28 | ALLOWED_FLAGS+=" -W* -w" |
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29 | |
| 104 | # allow a bunch of flags that negate features / control ABI |
30 | # allow a bunch of flags that negate features / control ABI |
| 105 | ALLOWED_FLAGS="${ALLOWED_FLAGS} -fno-stack-protector -fno-stack-protector-all" |
31 | ALLOWED_FLAGS+=" -fno-stack-protector -fno-stack-protector-all \ |
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32 | -fno-strict-aliasing -fno-bounds-checking -fstrict-overflow \ |
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33 | -fno-omit-frame-pointer" |
| 106 | ALLOWED_FLAGS="${ALLOWED_FLAGS} -mregparm -mno-app-regs -mapp-regs \ |
34 | ALLOWED_FLAGS+=" -mregparm -mno-app-regs -mapp-regs -mno-mmx -mno-sse \ |
| 107 | -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 \ |
| 108 | -mips1 -mips2 -mips3 -mips4 -mips32 -mips64 -mips16 \ |
37 | -mno-abm -mips1 -mips2 -mips3 -mips4 -mips32 -mips64 -mips16 -mplt \ |
| 109 | -msoft-float -mno-soft-float -mhard-float -mno-hard-float -mfpu \ |
38 | -msoft-float -mno-soft-float -mhard-float -mno-hard-float -mfpu \ |
| 110 | -mieee -mieee-with-inexact \ |
39 | -mieee -mieee-with-inexact -mschedule -mfloat-gprs -mspe -mno-spe \ |
| 111 | -mtls-direct-seg-refs -mno-tls-direct-seg-refs \ |
40 | -mtls-direct-seg-refs -mno-tls-direct-seg-refs -mflat -mno-flat \ |
| 112 | -mflat -mno-flat -mno-faster-structs -mfaster-structs \ |
41 | -mno-faster-structs -mfaster-structs -m32 -m64 -mx32 -mabi \ |
| 113 | -m32 -m64 -mabi -mlittle-endian -mbig-endian -EL -EB -fPIC \ |
42 | -mlittle-endian -mbig-endian -EL -EB -fPIC -mlive-g0 -mcmodel \ |
| 114 | -mlive-g0 -mcmodel -mstack-bias -mno-stack-bias" |
43 | -mstack-bias -mno-stack-bias -msecure-plt -m*-toc -D* -U*" |
| 115 | |
44 | |
| 116 | # C[XX]FLAGS that we are think is ok, but needs testing |
45 | # 4.5 |
| 117 | # NOTE: currently -Os have issues with gcc3 and K6* arch's |
46 | ALLOWED_FLAGS+=" -mno-fma4 -mno-movbe -mno-xop -mno-lwp" |
| 118 | export UNSTABLE_FLAGS="-Os -O3 -freorder-blocks -fprefetch-loop-arrays" |
47 | # 4.6 |
| 119 | return 0 |
48 | ALLOWED_FLAGS+=" -mno-fsgsbase -mno-rdrnd -mno-f16c -mno-bmi -mno-tbm" |
| 120 | } |
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| 121 | |
49 | |
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50 | export ALLOWED_FLAGS |
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51 | return 0 |
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52 | } |
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53 | |
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54 | # inverted filters for hardened compiler. This is trying to unpick |
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55 | # the hardened compiler defaults. |
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56 | _filter-hardened() { |
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57 | local f |
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58 | for f in "$@" ; do |
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59 | case "${f}" in |
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60 | # Ideally we should only concern ourselves with PIE flags, |
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61 | # not -fPIC or -fpic, but too many places filter -fPIC without |
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62 | # thinking about -fPIE. |
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63 | -fPIC|-fpic|-fPIE|-fpie|-Wl,pie|-pie) |
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64 | gcc-specs-pie || continue |
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65 | is-flagq -nopie || append-flags -nopie;; |
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66 | -fstack-protector) |
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67 | gcc-specs-ssp || continue |
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68 | is-flagq -fno-stack-protector || append-flags $(test-flags -fno-stack-protector);; |
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69 | -fstack-protector-all) |
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70 | gcc-specs-ssp-to-all || continue |
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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);; |
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75 | esac |
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76 | done |
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77 | } |
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78 | |
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79 | # Remove occurrences of strings from variable given in $1 |
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80 | # Strings removed are matched as globs, so for example |
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81 | # '-O*' would remove -O1, -O2 etc. |
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82 | _filter-var() { |
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83 | local f x VAR VAL |
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84 | declare -a new |
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85 | |
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86 | VAR=$1 |
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87 | shift |
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88 | eval VAL=\${${VAR}} |
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89 | for f in ${VAL}; do |
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90 | for x in "$@"; do |
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91 | # Note this should work with globs like -O* |
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92 | [[ ${f} == ${x} ]] && continue 2 |
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93 | done |
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94 | eval new\[\${\#new\[@]}]=\${f} |
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95 | done |
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96 | eval export ${VAR}=\${new\[*]} |
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97 | } |
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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. |
| 122 | filter-flags() { |
103 | filter-flags() { |
| 123 | local x f fset |
104 | _filter-hardened "$@" |
| 124 | declare -a new_CFLAGS new_CXXFLAGS |
105 | local v |
| 125 | |
106 | for v in C CPP CXX F FC LD ; do |
| 126 | for x in "$@" ; do |
107 | _filter-var ${v}FLAGS "$@" |
| 127 | case "${x}" in |
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| 128 | -fPIC|-fpic|-fPIE|-fpie|-pie) |
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| 129 | append-flags `test_flag -fno-pie`;; |
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| 130 | -fstack-protector|-fstack-protector-all) |
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| 131 | fstack-flags;; |
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| 132 | esac |
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| 133 | done |
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| 134 | |
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| 135 | for fset in CFLAGS CXXFLAGS; do |
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| 136 | # Looping over the flags instead of using a global |
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| 137 | # substitution ensures that we're working with flag atoms. |
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| 138 | # Otherwise globs like -O* have the potential to wipe out the |
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| 139 | # list of flags. |
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| 140 | for f in ${!fset}; do |
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| 141 | for x in "$@"; do |
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| 142 | # Note this should work with globs like -O* |
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| 143 | [[ ${f} == ${x} ]] && continue 2 |
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| 144 | done |
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| 145 | eval new_${fset}\[\${\#new_${fset}\[@]}]=\${f} |
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| 146 | done |
108 | done |
| 147 | eval export ${fset}=\${new_${fset}\[*]} |
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| 148 | done |
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| 149 | |
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| 150 | return 0 |
109 | return 0 |
| 151 | } |
110 | } |
| 152 | |
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. |
| 153 | filter-lfs-flags() { |
115 | filter-lfs-flags() { |
| 154 | [[ -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) |
| 155 | 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 |
| 156 | } |
122 | } |
| 157 | |
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. |
| 158 | append-lfs-flags() { |
168 | append-lfs-flags() { |
| 159 | [[ -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 |
| 160 | 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 |
| 161 | } |
172 | } |
| 162 | |
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. |
| 163 | append-flags() { |
178 | append-flags() { |
| 164 | [[ -z $* ]] && return 0 |
179 | [[ $# -eq 0 ]] && return 0 |
| 165 | export CFLAGS="${CFLAGS} $*" |
180 | append-cflags "$@" |
| 166 | export CXXFLAGS="${CXXFLAGS} $*" |
181 | append-cxxflags "$@" |
| 167 | [ -n "`is-flag -fno-stack-protector`" -o \ |
182 | append-fflags "$@" |
| 168 | -n "`is-flag -fno-stack-protector-all`" ] && fstack-flags |
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| 169 | return 0 |
183 | return 0 |
| 170 | } |
184 | } |
| 171 | |
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>. |
| 172 | replace-flags() { |
190 | replace-flags() { |
| 173 | [[ $# != 2 ]] \ |
191 | [[ $# != 2 ]] \ |
| 174 | && echo && eerror "Usage: replace-flags <old flag> <new flag>" \ |
192 | && echo && eerror "Usage: replace-flags <old flag> <new flag>" \ |
| 175 | && die "replace-flags takes 2 arguments, not $#" |
193 | && die "replace-flags takes 2 arguments, not $#" |
| 176 | |
194 | |
| 177 | local f fset |
195 | local f fset |
| 178 | declare -a new_CFLAGS new_CXXFLAGS |
196 | declare -a new_CFLAGS new_CXXFLAGS new_FFLAGS new_FCFLAGS |
| 179 | |
197 | |
| 180 | for fset in CFLAGS CXXFLAGS; do |
198 | for fset in CFLAGS CXXFLAGS FFLAGS FCFLAGS; do |
| 181 | # Looping over the flags instead of using a global |
199 | # Looping over the flags instead of using a global |
| 182 | # substitution ensures that we're working with flag atoms. |
200 | # substitution ensures that we're working with flag atoms. |
| 183 | # Otherwise globs like -O* have the potential to wipe out the |
201 | # Otherwise globs like -O* have the potential to wipe out the |
| 184 | # list of flags. |
202 | # list of flags. |
| 185 | for f in ${!fset}; do |
203 | for f in ${!fset}; do |
| … | |
… | |
| 191 | done |
209 | done |
| 192 | |
210 | |
| 193 | return 0 |
211 | return 0 |
| 194 | } |
212 | } |
| 195 | |
213 | |
|
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214 | # @FUNCTION: replace-cpu-flags |
|
|
215 | # @USAGE: <old> <new> |
|
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216 | # @DESCRIPTION: |
|
|
217 | # Replace cpu flags (like -march/-mcpu/-mtune) that select the <old> cpu |
|
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218 | # with flags that select the <new> cpu. Accepts shell globs for <old>. |
| 196 | replace-cpu-flags() { |
219 | replace-cpu-flags() { |
| 197 | local newcpu="$#" ; newcpu="${!newcpu}" |
220 | local newcpu="$#" ; newcpu="${!newcpu}" |
| 198 | while [ $# -gt 1 ] ; do |
221 | while [ $# -gt 1 ] ; do |
| 199 | # quote to make sure that no globbing is done (particularly on |
222 | # quote to make sure that no globbing is done (particularly on |
| 200 | # ${oldcpu} prior to calling replace-flags |
223 | # ${oldcpu}) prior to calling replace-flags |
| 201 | replace-flags "-march=${1}" "-march=${newcpu}" |
224 | replace-flags "-march=${1}" "-march=${newcpu}" |
| 202 | replace-flags "-mcpu=${1}" "-mcpu=${newcpu}" |
225 | replace-flags "-mcpu=${1}" "-mcpu=${newcpu}" |
| 203 | replace-flags "-mtune=${1}" "-mtune=${newcpu}" |
226 | replace-flags "-mtune=${1}" "-mtune=${newcpu}" |
| 204 | shift |
227 | shift |
| 205 | done |
228 | done |
| 206 | return 0 |
229 | return 0 |
| 207 | } |
230 | } |
| 208 | |
231 | |
|
|
232 | _is_flagq() { |
|
|
233 | local x |
|
|
234 | for x in ${!1} ; do |
|
|
235 | [[ ${x} == $2 ]] && return 0 |
|
|
236 | done |
|
|
237 | return 1 |
|
|
238 | } |
|
|
239 | |
|
|
240 | # @FUNCTION: is-flagq |
|
|
241 | # @USAGE: <flag> |
|
|
242 | # @DESCRIPTION: |
|
|
243 | # Returns shell true if <flag> is in {C,CXX,F,FC}FLAGS, else returns shell false. Accepts shell globs. |
|
|
244 | is-flagq() { |
|
|
245 | [[ -n $2 ]] && die "Usage: is-flag <flag>" |
|
|
246 | _is_flagq CFLAGS $1 || _is_flagq CXXFLAGS $1 || _is_flagq FFLAGS $1 || _is_flagq FCFLAGS $1 |
|
|
247 | } |
|
|
248 | |
|
|
249 | # @FUNCTION: is-flag |
|
|
250 | # @USAGE: <flag> |
|
|
251 | # @DESCRIPTION: |
|
|
252 | # Echo's "true" if flag is set in {C,CXX,F,FC}FLAGS. Accepts shell globs. |
| 209 | is-flag() { |
253 | is-flag() { |
| 210 | local x |
254 | is-flagq "$@" && echo true |
| 211 | |
|
|
| 212 | for x in ${CFLAGS} ${CXXFLAGS} ; do |
|
|
| 213 | # Note this should work with globs like -mcpu=ultrasparc* |
|
|
| 214 | if [[ ${x} == ${1} ]]; then |
|
|
| 215 | echo true |
|
|
| 216 | return 0 |
|
|
| 217 | fi |
|
|
| 218 | done |
|
|
| 219 | return 1 |
|
|
| 220 | } |
255 | } |
| 221 | |
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. |
|
|
261 | is-ldflagq() { |
|
|
262 | [[ -n $2 ]] && die "Usage: is-ldflag <flag>" |
|
|
263 | _is_flagq LDFLAGS $1 |
|
|
264 | } |
|
|
265 | |
|
|
266 | # @FUNCTION: is-ldflag |
|
|
267 | # @USAGE: <flag> |
|
|
268 | # @DESCRIPTION: |
|
|
269 | # Echo's "true" if flag is set in LDFLAGS. Accepts shell globs. |
|
|
270 | is-ldflag() { |
|
|
271 | is-ldflagq "$@" && echo true |
|
|
272 | } |
|
|
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. |
| 222 | filter-mfpmath() { |
280 | filter-mfpmath() { |
| 223 | local orig_mfpmath new_math prune_math |
281 | local orig_mfpmath new_math prune_math |
| 224 | |
282 | |
| 225 | # save the original -mfpmath flag |
283 | # save the original -mfpmath flag |
| 226 | orig_mfpmath="`get-flag -mfpmath`" |
284 | orig_mfpmath=$(get-flag -mfpmath) |
| 227 | # get the value of the current -mfpmath flag |
285 | # get the value of the current -mfpmath flag |
| 228 | new_math=" `get-flag mfpmath | tr , ' '` " |
286 | new_math=$(get-flag mfpmath) |
|
|
287 | new_math=" ${new_math//,/ } " |
| 229 | # figure out which math values are to be removed |
288 | # figure out which math values are to be removed |
| 230 | prune_math="" |
289 | prune_math="" |
| 231 | for prune_math in "$@" ; do |
290 | for prune_math in "$@" ; do |
| 232 | new_math="${new_math/ ${prune_math} / }" |
291 | new_math=${new_math/ ${prune_math} / } |
| 233 | done |
292 | done |
| 234 | new_math="`echo ${new_math:1:${#new_math}-2} | tr ' ' ,`" |
293 | new_math=$(echo ${new_math}) |
|
|
294 | new_math=${new_math// /,} |
| 235 | |
295 | |
| 236 | if [ -z "${new_math}" ] ; then |
296 | if [[ -z ${new_math} ]] ; then |
| 237 | # if we're removing all user specified math values are |
297 | # if we're removing all user specified math values are |
| 238 | # slated for removal, then we just filter the flag |
298 | # slated for removal, then we just filter the flag |
| 239 | filter-flags ${orig_mfpmath} |
299 | filter-flags ${orig_mfpmath} |
| 240 | else |
300 | else |
| 241 | # if we only want to filter some of the user specified |
301 | # if we only want to filter some of the user specified |
| … | |
… | |
| 243 | replace-flags ${orig_mfpmath} -mfpmath=${new_math} |
303 | replace-flags ${orig_mfpmath} -mfpmath=${new_math} |
| 244 | fi |
304 | fi |
| 245 | return 0 |
305 | return 0 |
| 246 | } |
306 | } |
| 247 | |
307 | |
|
|
308 | # @FUNCTION: strip-flags |
|
|
309 | # @DESCRIPTION: |
|
|
310 | # Strip C[XX]FLAGS of everything except known good/safe flags. |
| 248 | strip-flags() { |
311 | strip-flags() { |
| 249 | local x y flag NEW_CFLAGS NEW_CXXFLAGS |
312 | local x y flag NEW_CFLAGS NEW_CXXFLAGS NEW_FFLAGS NEW_FCFLAGS |
| 250 | |
313 | |
| 251 | setup-allowed-flags |
314 | setup-allowed-flags |
| 252 | |
315 | |
| 253 | local NEW_CFLAGS="" |
316 | local NEW_CFLAGS="" |
| 254 | local NEW_CXXFLAGS="" |
317 | local NEW_CXXFLAGS="" |
| 255 | |
318 | local NEW_FFLAGS="" |
| 256 | # Allow unstable C[XX]FLAGS if we are using unstable profile ... |
319 | local NEW_FCFLAGS="" |
| 257 | if has ~$(tc-arch) ${ACCEPT_KEYWORDS} ; then |
|
|
| 258 | ALLOWED_FLAGS="${ALLOWED_FLAGS} ${UNSTABLE_FLAGS}" |
|
|
| 259 | fi |
|
|
| 260 | |
320 | |
| 261 | set -f # disable pathname expansion |
321 | set -f # disable pathname expansion |
| 262 | |
322 | |
| 263 | for x in ${CFLAGS}; do |
323 | for x in ${CFLAGS}; do |
| 264 | for y in ${ALLOWED_FLAGS}; do |
324 | for y in ${ALLOWED_FLAGS}; do |
| … | |
… | |
| 278 | break |
338 | break |
| 279 | fi |
339 | fi |
| 280 | done |
340 | done |
| 281 | done |
341 | done |
| 282 | |
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} ${x}" |
|
|
358 | break |
|
|
359 | fi |
|
|
360 | done |
|
|
361 | done |
|
|
362 | |
| 283 | # In case we filtered out all optimization flags fallback to -O2 |
363 | # In case we filtered out all optimization flags fallback to -O2 |
| 284 | if [ "${CFLAGS/-O}" != "${CFLAGS}" -a "${NEW_CFLAGS/-O}" = "${NEW_CFLAGS}" ]; then |
364 | if [ "${CFLAGS/-O}" != "${CFLAGS}" -a "${NEW_CFLAGS/-O}" = "${NEW_CFLAGS}" ]; then |
| 285 | NEW_CFLAGS="${NEW_CFLAGS} -O2" |
365 | NEW_CFLAGS="${NEW_CFLAGS} -O2" |
| 286 | fi |
366 | fi |
| 287 | if [ "${CXXFLAGS/-O}" != "${CXXFLAGS}" -a "${NEW_CXXFLAGS/-O}" = "${NEW_CXXFLAGS}" ]; then |
367 | if [ "${CXXFLAGS/-O}" != "${CXXFLAGS}" -a "${NEW_CXXFLAGS/-O}" = "${NEW_CXXFLAGS}" ]; then |
| 288 | NEW_CXXFLAGS="${NEW_CXXFLAGS} -O2" |
368 | NEW_CXXFLAGS="${NEW_CXXFLAGS} -O2" |
| 289 | fi |
369 | fi |
|
|
370 | if [ "${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="${NEW_FCFLAGS} -O2" |
|
|
375 | fi |
| 290 | |
376 | |
| 291 | set +f # re-enable pathname expansion |
377 | set +f # re-enable pathname expansion |
| 292 | |
378 | |
| 293 | export CFLAGS="${NEW_CFLAGS}" |
379 | export CFLAGS="${NEW_CFLAGS}" |
| 294 | export CXXFLAGS="${NEW_CXXFLAGS}" |
380 | export CXXFLAGS="${NEW_CXXFLAGS}" |
|
|
381 | export FFLAGS="${NEW_FFLAGS}" |
|
|
382 | export FCFLAGS="${NEW_FCFLAGS}" |
| 295 | return 0 |
383 | return 0 |
| 296 | } |
384 | } |
| 297 | |
385 | |
| 298 | test-flag-PROG() { |
386 | test-flag-PROG() { |
| 299 | local comp=$1 |
387 | local comp=$1 |
| 300 | local flags="$2" |
388 | local flags="$2" |
| 301 | |
389 | |
| 302 | [[ -z ${comp} || -z ${flags} ]] && \ |
390 | [[ -z ${comp} || -z ${flags} ]] && return 1 |
| 303 | return 1 |
|
|
| 304 | |
391 | |
|
|
392 | # use -c so we can test the assembler as well |
| 305 | local PROG=$(tc-get${comp}) |
393 | local PROG=$(tc-get${comp}) |
| 306 | ${PROG} ${flags} -S -o /dev/null -xc /dev/null \ |
394 | ${PROG} ${flags} -c -o /dev/null -xc /dev/null \ |
| 307 | > /dev/null 2>&1 |
395 | > /dev/null 2>&1 |
| 308 | } |
396 | } |
| 309 | |
397 | |
| 310 | # 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. |
| 311 | test-flag-CC() { test-flag-PROG "CC" "$1"; } |
402 | test-flag-CC() { test-flag-PROG "CC" "$1"; } |
| 312 | |
403 | |
| 313 | # 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. |
| 314 | 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"; } |
| 315 | |
421 | |
| 316 | test-flags-PROG() { |
422 | test-flags-PROG() { |
| 317 | local comp=$1 |
423 | local comp=$1 |
| 318 | local flags |
424 | local flags |
| 319 | local x |
425 | local x |
| 320 | |
426 | |
| 321 | shift |
427 | shift |
| 322 | |
428 | |
| 323 | [[ -z ${comp} ]] && \ |
429 | [[ -z ${comp} ]] && return 1 |
| 324 | return 1 |
|
|
| 325 | |
430 | |
| 326 | for x in "$@" ; do |
431 | for x in "$@" ; do |
| 327 | test-flag-${comp} "${x}" && flags="${flags} ${x}" |
432 | test-flag-${comp} "${x}" && flags="${flags}${flags:+ }${x}" |
| 328 | done |
433 | done |
| 329 | |
434 | |
| 330 | echo "${flags}" |
435 | echo "${flags}" |
| 331 | |
436 | |
| 332 | # Just bail if we dont have any flags |
437 | # Just bail if we dont have any flags |
| 333 | [[ -n ${flags} ]] |
438 | [[ -n ${flags} ]] |
| 334 | } |
439 | } |
| 335 | |
440 | |
| 336 | # Returns (echo's) the given flags supported by the C compiler |
441 | # @FUNCTION: test-flags-CC |
|
|
442 | # @USAGE: <flags> |
|
|
443 | # @DESCRIPTION: |
|
|
444 | # Returns shell true if <flags> are supported by the C compiler, else returns shell false. |
| 337 | test-flags-CC() { test-flags-PROG "CC" "$@"; } |
445 | test-flags-CC() { test-flags-PROG "CC" "$@"; } |
| 338 | |
446 | |
| 339 | # Returns (echo's) the given flags supported by the C++ compiler |
447 | # @FUNCTION: test-flags-CXX |
|
|
448 | # @USAGE: <flags> |
|
|
449 | # @DESCRIPTION: |
|
|
450 | # Returns shell true if <flags> are supported by the C++ compiler, else returns shell false. |
| 340 | test-flags-CXX() { test-flags-PROG "CXX" "$@"; } |
451 | test-flags-CXX() { test-flags-PROG "CXX" "$@"; } |
| 341 | |
452 | |
|
|
453 | # @FUNCTION: test-flags-F77 |
|
|
454 | # @USAGE: <flags> |
|
|
455 | # @DESCRIPTION: |
|
|
456 | # Returns shell true if <flags> are supported by the Fortran 77 compiler, else returns shell false. |
|
|
457 | test-flags-F77() { test-flags-PROG "F77" "$@"; } |
|
|
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" "$@"; } |
|
|
464 | |
|
|
465 | # @FUNCTION: test-flags |
|
|
466 | # @USAGE: <flags> |
|
|
467 | # @DESCRIPTION: |
| 342 | # Short-hand that should hopefully work for both C and C++ compiler, but |
468 | # Short-hand that should hopefully work for both C and C++ compiler, but |
| 343 | # its really only present due to the append-flags() abomination. |
469 | # its really only present due to the append-flags() abomination. |
| 344 | test-flags() { test-flags-CC "$@"; } |
470 | test-flags() { test-flags-CC "$@"; } |
| 345 | |
471 | |
| 346 | # Deprecated, use test-flags() |
472 | # @FUNCTION: test_version_info |
| 347 | test_flag() { |
473 | # @USAGE: <version> |
| 348 | ewarn "test_flag: deprecated, please use test-flags()!" >&2 |
474 | # @DESCRIPTION: |
| 349 | |
475 | # Returns shell true if the current C compiler version matches <version>, else returns shell false. |
| 350 | test-flags-CC "$@" |
476 | # Accepts shell globs. |
| 351 | } |
|
|
| 352 | |
|
|
| 353 | test_version_info() { |
477 | test_version_info() { |
| 354 | if [[ $($(tc-getCC) --version 2>&1) == *$1* ]]; then |
478 | if [[ $($(tc-getCC) --version 2>&1) == *$1* ]]; then |
| 355 | return 0 |
479 | return 0 |
| 356 | else |
480 | else |
| 357 | return 1 |
481 | return 1 |
| 358 | fi |
482 | fi |
| 359 | } |
483 | } |
| 360 | |
484 | |
|
|
485 | # @FUNCTION: strip-unsupported-flags |
|
|
486 | # @DESCRIPTION: |
|
|
487 | # Strip {C,CXX,F,FC}FLAGS of any flags not supported by the active toolchain. |
| 361 | strip-unsupported-flags() { |
488 | strip-unsupported-flags() { |
| 362 | local x NEW_CFLAGS NEW_CXXFLAGS |
489 | export CFLAGS=$(test-flags-CC ${CFLAGS}) |
| 363 | |
490 | export CXXFLAGS=$(test-flags-CXX ${CXXFLAGS}) |
| 364 | for x in ${CFLAGS} ; do |
491 | export FFLAGS=$(test-flags-F77 ${FFLAGS}) |
| 365 | NEW_CFLAGS="${NEW_CFLAGS} $(test-flags ${x})" |
492 | export FCFLAGS=$(test-flags-FC ${FCFLAGS}) |
| 366 | done |
|
|
| 367 | for x in ${CXXFLAGS} ; do |
|
|
| 368 | NEW_CXXFLAGS="${NEW_CXXFLAGS} $(test-flags ${x})" |
|
|
| 369 | done |
|
|
| 370 | |
|
|
| 371 | export CFLAGS=${NEW_CFLAGS} |
|
|
| 372 | export CXXFLAGS=${NEW_CXXFLAGS} |
|
|
| 373 | } |
493 | } |
| 374 | |
494 | |
|
|
495 | # @FUNCTION: get-flag |
|
|
496 | # @USAGE: <flag> |
|
|
497 | # @DESCRIPTION: |
|
|
498 | # Find and echo the value for a particular flag. Accepts shell globs. |
| 375 | get-flag() { |
499 | get-flag() { |
| 376 | local f findflag="$1" |
500 | local f findflag="$1" |
| 377 | |
501 | |
| 378 | # this code looks a little flaky but seems to work for |
502 | # this code looks a little flaky but seems to work for |
| 379 | # everything we want ... |
503 | # everything we want ... |
| 380 | # for example, if CFLAGS="-march=i686": |
504 | # for example, if CFLAGS="-march=i686": |
| 381 | # `get-flag -march` == "-march=i686" |
505 | # `get-flag -march` == "-march=i686" |
| 382 | # `get-flag march` == "i686" |
506 | # `get-flag march` == "i686" |
| 383 | for f in ${CFLAGS} ${CXXFLAGS} ; do |
507 | for f in ${CFLAGS} ${CXXFLAGS} ${FFLAGS} ${FCFLAGS} ; do |
| 384 | if [ "${f/${findflag}}" != "${f}" ] ; then |
508 | if [ "${f/${findflag}}" != "${f}" ] ; then |
| 385 | printf "%s\n" "${f/-${findflag}=}" |
509 | printf "%s\n" "${f/-${findflag}=}" |
| 386 | return 0 |
510 | return 0 |
| 387 | fi |
511 | fi |
| 388 | done |
512 | done |
| 389 | return 1 |
513 | return 1 |
| 390 | } |
514 | } |
| 391 | |
515 | |
| 392 | # DEPRECATED - use gcc-specs-relro or gcc-specs-now from toolchain-funcs |
516 | # @FUNCTION: has_m64 |
| 393 | has_hardened() { |
517 | # @DESCRIPTION: |
| 394 | 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 |
| 395 | |
519 | # WORKS. Non-multilib gcc will take both -m32 and -m64. If the flag works |
| 396 | test_version_info Hardened && return 0 |
520 | # return code is 0, else the return code is 1. |
| 397 | # The specs file wont exist unless gcc has GCC_SPECS support |
|
|
| 398 | [[ -f ${GCC_SPECS} && ${GCC_SPECS} != ${GCC_SPECS/hardened/} ]] |
|
|
| 399 | } |
|
|
| 400 | |
|
|
| 401 | # DEPRECATED - use gcc-specs-pie from toolchain-funcs |
|
|
| 402 | # indicate whether PIC is set |
|
|
| 403 | has_pic() { |
|
|
| 404 | ewarn "has_pic: deprecated, please use gcc-specs-pie()!" >&2 |
|
|
| 405 | |
|
|
| 406 | [[ ${CFLAGS/-fPIC} != ${CFLAGS} || \ |
|
|
| 407 | ${CFLAGS/-fpic} != ${CFLAGS} || \ |
|
|
| 408 | -n $(echo | $(tc-getCC) ${CFLAGS} -E -dM - | grep __PIC__) ]] |
|
|
| 409 | } |
|
|
| 410 | |
|
|
| 411 | # DEPRECATED - use gcc-specs-pie from toolchain-funcs |
|
|
| 412 | # indicate whether PIE is set |
|
|
| 413 | has_pie() { |
|
|
| 414 | ewarn "has_pie: deprecated, please use gcc-specs-pie()!" >&2 |
|
|
| 415 | |
|
|
| 416 | [[ ${CFLAGS/-fPIE} != ${CFLAGS} || \ |
|
|
| 417 | ${CFLAGS/-fpie} != ${CFLAGS} || \ |
|
|
| 418 | -n $(echo | $(tc-getCC) ${CFLAGS} -E -dM - | grep __PIE__) || \ |
|
|
| 419 | -n $(echo | $(tc-getCC) ${CFLAGS} -E -dM - | grep __PIC__) ]] |
|
|
| 420 | # test PIC while waiting for specs to be updated to generate __PIE__ |
|
|
| 421 | } |
|
|
| 422 | |
|
|
| 423 | # DEPRECATED - use gcc-specs-ssp from toolchain-funcs |
|
|
| 424 | # indicate whether code for SSP is being generated for all functions |
|
|
| 425 | has_ssp_all() { |
|
|
| 426 | ewarn "has_ssp_all: deprecated, please use gcc-specs-ssp()!" >&2 |
|
|
| 427 | |
|
|
| 428 | # note; this matches only -fstack-protector-all |
|
|
| 429 | [[ ${CFLAGS/-fstack-protector-all} != ${CFLAGS} || \ |
|
|
| 430 | -n $(echo | $(tc-getCC) ${CFLAGS} -E -dM - | grep __SSP_ALL__) ]] || \ |
|
|
| 431 | gcc-specs-ssp |
|
|
| 432 | } |
|
|
| 433 | |
|
|
| 434 | # DEPRECATED - use gcc-specs-ssp from toolchain-funcs |
|
|
| 435 | # indicate whether code for SSP is being generated |
|
|
| 436 | has_ssp() { |
|
|
| 437 | ewarn "has_ssp: deprecated, please use gcc-specs-ssp()!" >&2 |
|
|
| 438 | |
|
|
| 439 | # note; this matches both -fstack-protector and -fstack-protector-all |
|
|
| 440 | [[ ${CFLAGS/-fstack-protector} != ${CFLAGS} || \ |
|
|
| 441 | -n $(echo | $(tc-getCC) ${CFLAGS} -E -dM - | grep __SSP__) ]] || \ |
|
|
| 442 | gcc-specs-ssp |
|
|
| 443 | } |
|
|
| 444 | |
|
|
| 445 | has_m64() { |
521 | has_m64() { |
| 446 | # this doesnt test if the flag is accepted, it tests if the flag |
522 | # this doesnt test if the flag is accepted, it tests if the flag |
| 447 | # actually -WORKS-. non-multilib gcc will take both -m32 and -m64! |
523 | # actually -WORKS-. non-multilib gcc will take both -m32 and -m64! |
| 448 | # please dont replace this function with test_flag in some future |
524 | # please dont replace this function with test_flag in some future |
| 449 | # clean-up! |
525 | # clean-up! |
| … | |
… | |
| 456 | rm -f "${temp}".c |
532 | rm -f "${temp}".c |
| 457 | [[ ${ret} != 1 ]] && return 0 |
533 | [[ ${ret} != 1 ]] && return 0 |
| 458 | return 1 |
534 | return 1 |
| 459 | } |
535 | } |
| 460 | |
536 | |
|
|
537 | # @FUNCTION: has_m32 |
|
|
538 | # @DESCRIPTION: |
|
|
539 | # This doesn't test if the flag is accepted, it tests if the flag actually |
|
|
540 | # WORKS. Non-mulilib gcc will take both -m32 and -64. If the flag works return |
|
|
541 | # code is 0, else return code is 1. |
| 461 | has_m32() { |
542 | has_m32() { |
| 462 | # this doesnt test if the flag is accepted, it tests if the flag |
543 | # this doesnt test if the flag is accepted, it tests if the flag |
| 463 | # actually -WORKS-. non-multilib gcc will take both -m32 and -m64! |
544 | # actually -WORKS-. non-multilib gcc will take both -m32 and -m64! |
| 464 | # please dont replace this function with test_flag in some future |
545 | # please dont replace this function with test_flag in some future |
| 465 | # clean-up! |
546 | # clean-up! |
| … | |
… | |
| 474 | rm -f "${temp}".c |
555 | rm -f "${temp}".c |
| 475 | [[ ${ret} != 1 ]] && return 0 |
556 | [[ ${ret} != 1 ]] && return 0 |
| 476 | return 1 |
557 | return 1 |
| 477 | } |
558 | } |
| 478 | |
559 | |
|
|
560 | # @FUNCTION: replace-sparc64-flags |
|
|
561 | # @DESCRIPTION: |
|
|
562 | # Sets mcpu to v8 and uses the original value as mtune if none specified. |
| 479 | replace-sparc64-flags() { |
563 | replace-sparc64-flags() { |
| 480 | local SPARC64_CPUS="ultrasparc3 ultrasparc v9" |
564 | local SPARC64_CPUS="ultrasparc3 ultrasparc v9" |
| 481 | |
565 | |
| 482 | if [ "${CFLAGS/mtune}" != "${CFLAGS}" ]; then |
566 | if [ "${CFLAGS/mtune}" != "${CFLAGS}" ]; then |
| 483 | for x in ${SPARC64_CPUS}; do |
567 | for x in ${SPARC64_CPUS}; do |
| 484 | CFLAGS="${CFLAGS/-mcpu=${x}/-mcpu=v8}" |
568 | CFLAGS="${CFLAGS/-mcpu=${x}/-mcpu=v8}" |
| 485 | done |
569 | done |
| 486 | else |
570 | else |
| 487 | for x in ${SPARC64_CPUS}; do |
571 | for x in ${SPARC64_CPUS}; do |
| 488 | CFLAGS="${CFLAGS/-mcpu=${x}/-mcpu=v8 -mtune=${x}}" |
572 | CFLAGS="${CFLAGS/-mcpu=${x}/-mcpu=v8 -mtune=${x}}" |
| 489 | done |
573 | done |
| 490 | fi |
574 | fi |
| 491 | |
575 | |
| 492 | if [ "${CXXFLAGS/mtune}" != "${CXXFLAGS}" ]; then |
576 | if [ "${CXXFLAGS/mtune}" != "${CXXFLAGS}" ]; then |
| 493 | for x in ${SPARC64_CPUS}; do |
577 | for x in ${SPARC64_CPUS}; do |
| 494 | CXXFLAGS="${CXXFLAGS/-mcpu=${x}/-mcpu=v8}" |
578 | CXXFLAGS="${CXXFLAGS/-mcpu=${x}/-mcpu=v8}" |
| 495 | done |
579 | done |
| 496 | else |
580 | else |
| 497 | for x in ${SPARC64_CPUS}; do |
581 | for x in ${SPARC64_CPUS}; do |
| 498 | CXXFLAGS="${CXXFLAGS/-mcpu=${x}/-mcpu=v8 -mtune=${x}}" |
582 | CXXFLAGS="${CXXFLAGS/-mcpu=${x}/-mcpu=v8 -mtune=${x}}" |
| 499 | done |
583 | done |
| 500 | fi |
584 | fi |
| 501 | |
585 | |
| 502 | export CFLAGS CXXFLAGS |
586 | export CFLAGS CXXFLAGS |
| 503 | } |
587 | } |
| 504 | |
588 | |
|
|
589 | # @FUNCTION: append-libs |
|
|
590 | # @USAGE: <libs> |
|
|
591 | # @DESCRIPTION: |
|
|
592 | # Add extra <libs> to the current LIBS. |
|
|
593 | append-libs() { |
|
|
594 | [[ $# -eq 0 ]] && return 0 |
|
|
595 | local flag |
|
|
596 | for flag in "$@"; do |
|
|
597 | [[ ${flag} == -l* ]] && flag=${flag#-l} |
|
|
598 | export LIBS="${LIBS} -l${flag}" |
|
|
599 | done |
|
|
600 | |
|
|
601 | return 0 |
|
|
602 | } |
|
|
603 | |
|
|
604 | # @FUNCTION: append-ldflags |
|
|
605 | # @USAGE: <flags> |
|
|
606 | # @DESCRIPTION: |
|
|
607 | # Add extra <flags> to the current LDFLAGS. |
| 505 | append-ldflags() { |
608 | append-ldflags() { |
|
|
609 | [[ $# -eq 0 ]] && return 0 |
|
|
610 | local flag |
|
|
611 | for flag in "$@"; do |
|
|
612 | [[ ${flag} == -l* ]] && \ |
|
|
613 | ewarn "Appending a library link instruction (${flag}); libraries to link to should not be passed through LDFLAGS" |
|
|
614 | done |
|
|
615 | |
| 506 | export LDFLAGS="${LDFLAGS} $*" |
616 | export LDFLAGS="${LDFLAGS} $*" |
| 507 | return 0 |
617 | return 0 |
| 508 | } |
618 | } |
| 509 | |
619 | |
|
|
620 | # @FUNCTION: filter-ldflags |
|
|
621 | # @USAGE: <flags> |
|
|
622 | # @DESCRIPTION: |
|
|
623 | # Remove particular <flags> from LDFLAGS. Accepts shell globs. |
| 510 | filter-ldflags() { |
624 | filter-ldflags() { |
| 511 | local x |
625 | _filter-var LDFLAGS "$@" |
| 512 | |
|
|
| 513 | # we do this fancy spacing stuff so as to not filter |
|
|
| 514 | # out part of a flag ... we want flag atoms ! :D |
|
|
| 515 | LDFLAGS=" ${LDFLAGS} " |
|
|
| 516 | for x in "$@" ; do |
|
|
| 517 | LDFLAGS=${LDFLAGS// ${x} / } |
|
|
| 518 | done |
|
|
| 519 | [[ -z ${LDFLAGS// } ]] \ |
|
|
| 520 | && LDFLAGS="" \ |
|
|
| 521 | || LDFLAGS=${LDFLAGS:1:${#LDFLAGS}-2} |
|
|
| 522 | export LDFLAGS |
|
|
| 523 | return 0 |
626 | return 0 |
| 524 | } |
627 | } |
| 525 | |
628 | |
|
|
629 | # @FUNCTION: raw-ldflags |
|
|
630 | # @USAGE: [flags] |
|
|
631 | # @DESCRIPTION: |
| 526 | # Turn C style ldflags (-Wl,-foo) into straight ldflags |
632 | # Turn C style ldflags (-Wl,-foo) into straight ldflags - the results |
|
|
633 | # are suitable for passing directly to 'ld'; note LDFLAGS is usually passed |
|
|
634 | # to gcc where it needs the '-Wl,'. |
|
|
635 | # |
|
|
636 | # If no flags are specified, then default to ${LDFLAGS}. |
| 527 | raw-ldflags() { |
637 | raw-ldflags() { |
| 528 | local x input="$@" |
638 | local x input="$@" |
| 529 | [[ -z ${input} ]] && input=${LDFLAGS} |
639 | [[ -z ${input} ]] && input=${LDFLAGS} |
| 530 | set -- |
640 | set -- |
| 531 | for x in ${input} ; do |
641 | for x in ${input} ; do |
| … | |
… | |
| 533 | set -- "$@" ${x//,/ } |
643 | set -- "$@" ${x//,/ } |
| 534 | done |
644 | done |
| 535 | echo "$@" |
645 | echo "$@" |
| 536 | } |
646 | } |
| 537 | |
647 | |
| 538 | fstack-flags() { |
648 | # @FUNCTION: no-as-needed |
| 539 | if gcc-specs-ssp; then |
649 | # @RETURN: Flag to disable asneeded behavior for use with append-ldflags. |
| 540 | [ -z "`is-flag -fno-stack-protector`" ] && |
650 | no-as-needed() { |
| 541 | export CFLAGS="${CFLAGS} `test_flag -fno-stack-protector`" |
|
|
| 542 | fi |
|
|
| 543 | return 0 |
|
|
| 544 | } |
|
|
| 545 | |
|
|
| 546 | # This is thanks to great work from Paul de Vrieze <gentoo-user@devrieze.net>, |
|
|
| 547 | # bug #9016. Also thanks to Jukka Salmi <salmi@gmx.net> (bug #13907) for more |
|
|
| 548 | # fixes. |
|
|
| 549 | # |
|
|
| 550 | # Export CFLAGS and CXXFLAGS that are compadible with gcc-2.95.3 |
|
|
| 551 | gcc2-flags() { |
|
|
| 552 | if [[ $(tc-arch) == "x86" || $(tc-arch) == "amd64" ]] ; then |
|
|
| 553 | CFLAGS=${CFLAGS//-mtune=/-mcpu=} |
|
|
| 554 | CXXFLAGS=${CXXFLAGS//-mtune=/-mcpu=} |
|
|
| 555 | fi |
|
|
| 556 | |
|
|
| 557 | replace-cpu-flags k6-{2,3} k6 |
|
|
| 558 | replace-cpu-flags athlon{,-{tbird,4,xp,mp}} i686 |
|
|
| 559 | |
|
|
| 560 | replace-cpu-flags pentium-mmx i586 |
|
|
| 561 | replace-cpu-flags pentium{2,3,4} i686 |
|
|
| 562 | |
|
|
| 563 | replace-cpu-flags ev6{7,8} ev6 |
|
|
| 564 | |
|
|
| 565 | export CFLAGS CXXFLAGS |
|
|
| 566 | } |
|
|
| 567 | |
|
|
| 568 | # Gets the flags needed for "NOW" binding |
|
|
| 569 | bindnow-flags() { |
|
|
| 570 | case $($(tc-getLD) -v 2>&1 </dev/null) in |
651 | case $($(tc-getLD) -v 2>&1 </dev/null) in |
| 571 | *GNU* | *'with BFD'*) # GNU ld |
652 | *GNU*) # GNU ld |
| 572 | echo "-Wl,-z,now" ;; |
653 | echo "-Wl,--no-as-needed" ;; |
| 573 | *Apple*) # Darwin ld |
|
|
| 574 | echo "-bind_at_load" ;; |
|
|
| 575 | *) |
|
|
| 576 | # Some linkers just recognize -V instead of -v |
|
|
| 577 | case $($(tc-getLD) -V 2>&1 </dev/null) in |
|
|
| 578 | *Solaris*) # Solaris accept almost the same GNU options |
|
|
| 579 | echo "-Wl,-z,now" ;; |
|
|
| 580 | esac |
|
|
| 581 | ;; |
|
|
| 582 | esac |
654 | esac |
| 583 | } |
655 | } |
|
|
656 | |
|
|
657 | fi |
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