gentoo-x86/eclass/toolchain-funcs.eclass

# Copyright 1999-2005 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/eclass/toolchain-funcs.eclass,v 1.45 2005/10/06 01:52:51 vapier Exp $
#
# Author: Toolchain Ninjas <ninjas@gentoo.org>
#
# This eclass contains (or should) functions to get common info
# about the toolchain (libc/compiler/binutils/etc...)

inherit multilib

DESCRIPTION="Based on the ${ECLASS} eclass"

tc-getPROG() {
        local var=$1
        local prog=$2

        if [[ -n ${!var} ]] ; then
                echo "${!var}"
                return 0
        fi

        local search=
        [[ -n $3 ]] && search=$(type -p "$3-${prog}")
        [[ -z ${search} && -n $(get_abi_CHOST) ]] && search=$(type -p "$(get_abi_CHOST)-${prog}")
        [[ -z ${search} && -n ${CHOST} ]] && search=$(type -p "${CHOST}-${prog}")
        [[ -n ${search} ]] && prog=${search##*/}

        export ${var}=${prog}
        echo "${!var}"
}

# Returns the name of the archiver
tc-getAR() { tc-getPROG AR ar "$@"; }
# Returns the name of the assembler
tc-getAS() { tc-getPROG AS as "$@"; }
# Returns the name of the C compiler
tc-getCC() { tc-getPROG CC gcc "$@"; }
# Returns the name of the C++ compiler
tc-getCXX() { tc-getPROG CXX g++ "$@"; }
# Returns the name of the linker
tc-getLD() { tc-getPROG LD ld "$@"; }
# Returns the name of the symbol/object thingy
tc-getNM() { tc-getPROG NM nm "$@"; }
# Returns the name of the archiver indexer
tc-getRANLIB() { tc-getPROG RANLIB ranlib "$@"; }
# Returns the name of the fortran compiler
tc-getF77() { tc-getPROG F77 f77 "$@"; }
# Returns the name of the java compiler
tc-getGCJ() { tc-getPROG GCJ gcj "$@"; }

# Returns the name of the C compiler for build
tc-getBUILD_CC() {
        local v
        for v in CC_FOR_BUILD BUILD_CC HOSTCC ; do
                if [[ -n ${!v} ]] ; then
                        export BUILD_CC=${!v}
                        echo "${!v}"
                        return 0
                fi
        done

        local search=
        if [[ -n ${CBUILD} ]] ; then
                search=$(type -p ${CBUILD}-gcc)
                search=${search##*/}
        fi
        search=${search:-gcc}

        export BUILD_CC=${search}
        echo "${search}"
}

# Quick way to export a bunch of vars at once
tc-export() {
        local var
        for var in "$@" ; do
                eval tc-get${var} > /dev/null
        done
}

# A simple way to see if we're using a cross-compiler ...
tc-is-cross-compiler() {
        return $([[ ${CBUILD:-${CHOST}} != ${CHOST} ]])
}


# Parse information from CBUILD/CHOST/CTARGET rather than
# use external variables from the profile.
tc-ninja_magic_to_arch() {
ninj() { [[ ${type} == "kern" ]] && echo $1 || echo $2 ; }

        local type=$1
        local host=$2
        [[ -z ${host} ]] && host=${CTARGET:-${CHOST}}

        case ${host} in
                alpha*)         echo alpha;;
                x86_64*)        ninj x86_64 amd64;;
                arm*)           echo arm;;
                thumb*)         echo arm;;
                hppa*)          ninj parisc hppa;;
                ia64*)          echo ia64;;
                m68*)           echo m68k;;
                mips*)          echo mips;;
                powerpc64*)     echo ppc64;;
                powerpc*)       [[ ${PROFILE_ARCH} == "ppc64" ]] \
                                                && ninj ppc64 ppc \
                                                || echo ppc
                                        ;;
                sparc64*)       ninj sparc64 sparc;;
                sparc*)         [[ ${PROFILE_ARCH} == "sparc64" ]] \
                                                && ninj sparc64 sparc \
                                                || echo sparc
                                        ;;
                s390*)          echo s390;;
                sh64*)          ninj sh64 sh;;
                sh*)            echo sh;;
                i?86*)          ninj i386 x86;;
                *)                      echo ${ARCH};;
        esac
}
tc-arch-kernel() {
        tc-ninja_magic_to_arch kern $@
}
tc-arch() {
        tc-ninja_magic_to_arch portage $@
}
tc-endian() {
        local host=$1
        [[ -z ${host} ]] && host=${CTARGET:-${CHOST}}
        host=${host%%-*}

        case ${host} in
                alpha*)         echo big;;
                x86_64*)        echo little;;
                arm*b*)         echo big;;
                arm*)           echo little;;
                thumb*)         echo little;;
                hppa*)          echo big;;
                ia64*)          echo little;;
                m68*)           echo big;;
                mips*l*)        echo little;;
                mips*)          echo big;;
                powerpc*)       echo big;;
                sparc*)         echo big;;
                s390*)          echo big;;
                sh*b*)          echo big;;
                sh*)            echo little;;
                i?86*)          echo little;;
                *)                      echo wtf;;
        esac
}

# Returns the version as by `$CC -dumpversion`
gcc-fullversion() {
        echo "$($(tc-getCC) -dumpversion)"
}
# Returns the version, but only the <major>.<minor>
gcc-version() {
        echo "$(gcc-fullversion | cut -f1,2 -d.)"
}
# Returns the Major version
gcc-major-version() {
        echo "$(gcc-version | cut -f1 -d.)"
}
# Returns the Minor version
gcc-minor-version() {
        echo "$(gcc-version | cut -f2 -d.)"
}
# Returns the Micro version
gcc-micro-version() {
        echo "$(gcc-fullversion | cut -f3 -d. | cut -f1 -d-)"
}

# Returns requested gcc specs directive
# Note; later specs normally overwrite earlier ones; however if a later
# spec starts with '+' then it appends.
# gcc -dumpspecs is parsed first, followed by files listed by "gcc -v"
# as "Reading <file>", in order.
gcc-specs-directive() {
        local specfiles=$($(tc-getCC) -v 2>&1 | awk '$1=="Reading" {print $NF}')
        $(tc-getCC) -dumpspecs 2> /dev/null | cat - ${specfiles} | awk -v directive=$1 \
'BEGIN  { pspec=""; spec=""; outside=1 }
$1=="*"directive":"  { pspec=spec; spec=""; outside=0; next }
        outside || NF==0 || ( substr($1,1,1)=="*" && substr($1,length($1),1)==":" ) { outside=1; next }
        spec=="" && substr($0,1,1)=="+" { spec=pspec " " substr($0,2); next }
        { spec=spec $0 }
END     { print spec }'
        return 0
}

# Returns true if gcc sets relro
gcc-specs-relro() {
        local directive
        directive=$(gcc-specs-directive link_command)
        return $([[ ${directive/\{!norelro:} != ${directive} ]])
}
# Returns true if gcc sets now
gcc-specs-now() {
        local directive
        directive=$(gcc-specs-directive link_command)
        return $([[ ${directive/\{!nonow:} != ${directive} ]])
}
# Returns true if gcc builds PIEs
gcc-specs-pie() {
        local directive
        directive=$(gcc-specs-directive cc1)
        return $([[ ${directive/\{!nopie:} != ${directive} ]])
}
# Returns true if gcc builds with the stack protector
gcc-specs-ssp() {
        local directive
        directive=$(gcc-specs-directive cc1)
        return $([[ ${directive/\{!fno-stack-protector:} != ${directive} ]])
}
# Returns true if gcc upgrades fstack-protector to fstack-protector-all
gcc-specs-ssp-to-all() {
        local directive
        directive=$(gcc-specs-directive cc1)
        return $([[ ${directive/\{!fno-stack-protector-all:} != ${directive} ]])
}

1	vapier	1.26	# Copyright 1999-2005 Gentoo Foundation
2	vapier	1.1	# Distributed under the terms of the GNU General Public License v2
3	kevquinn	1.46	# $Header: /var/cvsroot/gentoo-x86/eclass/toolchain-funcs.eclass,v 1.45 2005/10/06 01:52:51 vapier Exp $
4	vapier	1.1	#
5			# Author: Toolchain Ninjas <ninjas@gentoo.org>
6			#
7	swegener	1.40	# This eclass contains (or should) functions to get common info
8	vapier	1.1	# about the toolchain (libc/compiler/binutils/etc...)
9
10	eradicator	1.34	inherit multilib
11
12	vapier	1.1	DESCRIPTION="Based on the ${ECLASS} eclass"
13
14			tc-getPROG() {
15	vapier	1.33	local var=$1
16			local prog=$2
17	vapier	1.1
18	vapier	1.17	if [[ -n ${!var} ]] ; then
19	vapier	1.1	echo "${!var}"
20			return 0
21			fi
22
23	eradicator	1.35	local search=
24			[[ -n $3 ]] && search=$(type -p "$3-${prog}")
25			[[ -z ${search} && -n $(get_abi_CHOST) ]] && search=$(type -p "$(get_abi_CHOST)-${prog}")
26			[[ -z ${search} && -n ${CHOST} ]] && search=$(type -p "${CHOST}-${prog}")
27			[[ -n ${search} ]] && prog=${search##*/}
28	vapier	1.1
29	vapier	1.17	export ${var}=${prog}
30	vapier	1.1	echo "${!var}"
31			}
32
33			# Returns the name of the archiver
34	vapier	1.33	tc-getAR() { tc-getPROG AR ar "$@"; }
35	vapier	1.1	# Returns the name of the assembler
36	vapier	1.33	tc-getAS() { tc-getPROG AS as "$@"; }
37	vapier	1.1	# Returns the name of the C compiler
38	vapier	1.33	tc-getCC() { tc-getPROG CC gcc "$@"; }
39	vapier	1.1	# Returns the name of the C++ compiler
40	vapier	1.33	tc-getCXX() { tc-getPROG CXX g++ "$@"; }
41	vapier	1.1	# Returns the name of the linker
42	vapier	1.33	tc-getLD() { tc-getPROG LD ld "$@"; }
43	vapier	1.1	# Returns the name of the symbol/object thingy
44	vapier	1.33	tc-getNM() { tc-getPROG NM nm "$@"; }
45	vapier	1.1	# Returns the name of the archiver indexer
46	vapier	1.33	tc-getRANLIB() { tc-getPROG RANLIB ranlib "$@"; }
47	vapier	1.7	# Returns the name of the fortran compiler
48	vapier	1.33	tc-getF77() { tc-getPROG F77 f77 "$@"; }
49	vapier	1.8	# Returns the name of the java compiler
50	vapier	1.33	tc-getGCJ() { tc-getPROG GCJ gcj "$@"; }
51	vapier	1.1
52	vapier	1.4	# Returns the name of the C compiler for build
53			tc-getBUILD_CC() {
54	vapier	1.43	local v
55			for v in CC_FOR_BUILD BUILD_CC HOSTCC ; do
56			if [[ -n ${!v} ]] ; then
57			export BUILD_CC=${!v}
58			echo "${!v}"
59			return 0
60			fi
61			done
62	vapier	1.4
63	vapier	1.9	local search=
64	vapier	1.17	if [[ -n ${CBUILD} ]] ; then
65	vapier	1.21	search=$(type -p ${CBUILD}-gcc)
66	vapier	1.17	search=${search##*/}
67	vapier	1.9	fi
68	vapier	1.45	search=${search:-gcc}
69	vapier	1.11
70	vapier	1.17	export BUILD_CC=${search}
71	vapier	1.11	echo "${search}"
72	vapier	1.4	}
73	vapier	1.1
74	vapier	1.10	# Quick way to export a bunch of vars at once
75			tc-export() {
76			local var
77			for var in "$@" ; do
78	vapier	1.36	eval tc-get${var} > /dev/null
79	vapier	1.10	done
80			}
81
82	vapier	1.12	# A simple way to see if we're using a cross-compiler ...
83			tc-is-cross-compiler() {
84	vapier	1.43	return $([[ ${CBUILD:-${CHOST}} != ${CHOST} ]])
85	vapier	1.12	}
86
87	vapier	1.1
88	swegener	1.40	# Parse information from CBUILD/CHOST/CTARGET rather than
89	vapier	1.20	# use external variables from the profile.
90			tc-ninja_magic_to_arch() {
91	vapier	1.21	ninj() { [[ ${type} == "kern" ]] && echo $1 \|\| echo $2 ; }
92	vapier	1.19
93			local type=$1
94			local host=$2
95	eradicator	1.25	[[ -z ${host} ]] && host=${CTARGET:-${CHOST}}
96	vapier	1.19
97			case ${host} in
98			alpha*) echo alpha;;
99			x86_64*) ninj x86_64 amd64;;
100			arm*) echo arm;;
101	vapier	1.44	thumb*) echo arm;;
102	vapier	1.19	hppa*) ninj parisc hppa;;
103			ia64*) echo ia64;;
104	vapier	1.23	m68*) echo m68k;;
105	vapier	1.19	mips*) echo mips;;
106			powerpc64*) echo ppc64;;
107	dostrow	1.37	powerpc*) [[ ${PROFILE_ARCH} == "ppc64" ]] \
108			&& ninj ppc64 ppc \
109			\|\| echo ppc
110			;;
111	vapier	1.19	sparc64*) ninj sparc64 sparc;;
112	vapier	1.28	sparc*) [[ ${PROFILE_ARCH} == "sparc64" ]] \
113			&& ninj sparc64 sparc \
114			\|\| echo sparc
115			;;
116	vapier	1.19	s390*) echo s390;;
117			sh64*) ninj sh64 sh;;
118			sh*) echo sh;;
119	vapier	1.22	i?86*) ninj i386 x86;;
120	vapier	1.28	*) echo ${ARCH};;
121	vapier	1.19	esac
122			}
123	vapier	1.20	tc-arch-kernel() {
124			tc-ninja_magic_to_arch kern $@
125	vapier	1.19	}
126	vapier	1.20	tc-arch() {
127			tc-ninja_magic_to_arch portage $@
128	vapier	1.19	}
129	vapier	1.20	tc-endian() {
130			local host=$1
131	vapier	1.29	[[ -z ${host} ]] && host=${CTARGET:-${CHOST}}
132	vapier	1.31	host=${host%%-*}
133	vapier	1.19
134	vapier	1.20	case ${host} in
135			alpha*) echo big;;
136			x86_64*) echo little;;
137	vapier	1.31	armb) echo big;;
138	vapier	1.20	arm*) echo little;;
139	vapier	1.44	thumb*) echo little;;
140	vapier	1.20	hppa*) echo big;;
141			ia64*) echo little;;
142	vapier	1.23	m68*) echo big;;
143	vapier	1.31	mipsl) echo little;;
144	vapier	1.20	mips*) echo big;;
145			powerpc*) echo big;;
146			sparc*) echo big;;
147			s390*) echo big;;
148	vapier	1.31	shb) echo big;;
149			sh*) echo little;;
150	vapier	1.20	i?86*) echo little;;
151			*) echo wtf;;
152			esac
153			}
154	vapier	1.19
155	vapier	1.1	# Returns the version as by `$CC -dumpversion`
156			gcc-fullversion() {
157			echo "$($(tc-getCC) -dumpversion)"
158			}
159			# Returns the version, but only the <major>.<minor>
160			gcc-version() {
161	vapier	1.2	echo "$(gcc-fullversion \| cut -f1,2 -d.)"
162	vapier	1.1	}
163			# Returns the Major version
164			gcc-major-version() {
165	vapier	1.2	echo "$(gcc-version \| cut -f1 -d.)"
166	vapier	1.1	}
167			# Returns the Minor version
168			gcc-minor-version() {
169	vapier	1.2	echo "$(gcc-version \| cut -f2 -d.)"
170	vapier	1.1	}
171			# Returns the Micro version
172			gcc-micro-version() {
173	eradicator	1.30	echo "$(gcc-fullversion \| cut -f3 -d. \| cut -f1 -d-)"
174	vapier	1.1	}
175	kevquinn	1.41
176			# Returns requested gcc specs directive
177	kevquinn	1.46	# Note; later specs normally overwrite earlier ones; however if a later
178			# spec starts with '+' then it appends.
179			# gcc -dumpspecs is parsed first, followed by files listed by "gcc -v"
180			# as "Reading <file>", in order.
181	kevquinn	1.41	gcc-specs-directive() {
182	kevquinn	1.46	local specfiles=$($(tc-getCC) -v 2>&1 \| awk '$1=="Reading" {print $NF}')
183			$(tc-getCC) -dumpspecs 2> /dev/null \| cat - ${specfiles} \| awk -v directive=$1 \
184			'BEGIN { pspec=""; spec=""; outside=1 }
185			$1=="*"directive":" { pspec=spec; spec=""; outside=0; next }
186	kevquinn	1.41	outside \|\| NF==0 \|\| ( substr($1,1,1)=="*" && substr($1,length($1),1)==":" ) { outside=1; next }
187	kevquinn	1.46	spec=="" && substr($0,1,1)=="+" { spec=pspec " " substr($0,2); next }
188			{ spec=spec $0 }
189			END { print spec }'
190			return 0
191	kevquinn	1.41	}
192
193			# Returns true if gcc sets relro
194			gcc-specs-relro() {
195			local directive
196			directive=$(gcc-specs-directive link_command)
197			return $([[ ${directive/\{!norelro:} != ${directive} ]])
198			}
199			# Returns true if gcc sets now
200			gcc-specs-now() {
201			local directive
202			directive=$(gcc-specs-directive link_command)
203			return $([[ ${directive/\{!nonow:} != ${directive} ]])
204			}
205			# Returns true if gcc builds PIEs
206			gcc-specs-pie() {
207			local directive
208			directive=$(gcc-specs-directive cc1)
209			return $([[ ${directive/\{!nopie:} != ${directive} ]])
210			}
211			# Returns true if gcc builds with the stack protector
212			gcc-specs-ssp() {
213			local directive
214			directive=$(gcc-specs-directive cc1)
215			return $([[ ${directive/\{!fno-stack-protector:} != ${directive} ]])
216			}
217	kevquinn	1.46	# Returns true if gcc upgrades fstack-protector to fstack-protector-all
218			gcc-specs-ssp-to-all() {
219			local directive
220			directive=$(gcc-specs-directive cc1)
221			return $([[ ${directive/\{!fno-stack-protector-all:} != ${directive} ]])
222			}
223