gentoo-x86/eclass/toolchain-funcs.eclass

# Copyright 1999-2006 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/eclass/toolchain-funcs.eclass,v 1.53 2006/01/15 20:31:52 vapier Exp $
#
# Author: Toolchain Ninjas <toolchain@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 ${CHOST} ]] && search=$(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;;
                arm*)           echo arm;;
                bfin*)          ninj blackfin bfin;;
                cris*)          echo cris;;
                hppa*)          ninj parisc hppa;;
                i?86*)          ninj i386 x86;;
                ia64*)          echo ia64;;
                m68*)           echo m68k;;
                mips*)          echo mips;;
                nios2*)         echo nios2;;
                nios*)          echo nios;;
                powerpc*)
                                        # Starting with linux-2.6.15, the 'ppc' and 'ppc64' trees
                                        # have been unified into simply 'powerpc', but until 2.6.16,
                                        # ppc32 is still using ARCH="ppc" as default
                                        if [[ $(KV_to_int ${KV}) -ge $(KV_to_int 2.6.16) ]] && [[ ${type} == "kern" ]] ; then
                                                echo powerpc
                                        elif [[ $(KV_to_int ${KV}) -eq $(KV_to_int 2.6.15) ]] && [[ ${type} == "kern" ]] ; then
                                                if [[ ${PROFILE_ARCH} == "ppc64" ]] ; then
                                                        echo powerpc
                                                else
                                                        echo ppc
                                                fi      
                                        elif [[ ${host} == powerpc64* ]] ; then
                                                echo ppc64
                                        elif [[ ${PROFILE_ARCH} == "ppc64" ]] ; then
                                                ninj ppc64 ppc
                                        else
                                                echo ppc
                                        fi
                                        ;;
                s390*)          echo s390;;
                sh64*)          ninj sh64 sh;;
                sh*)            echo sh;;
                sparc64*)       ninj sparc64 sparc;;
                sparc*)         [[ ${PROFILE_ARCH} == "sparc64" ]] \
                                                && ninj sparc64 sparc \
                                                || echo sparc
                                        ;;
                vax*)           echo vax;;
                x86_64*)        ninj x86_64 amd64;;
                *)                      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;;
                arm*b*)         echo big;;
                arm*)           echo little;;
                cris*)          echo little;;
                hppa*)          echo big;;
                i?86*)          echo little;;
                ia64*)          echo little;;
                m68*)           echo big;;
                mips*l*)        echo little;;
                mips*)          echo big;;
                powerpc*)       echo big;;
                s390*)          echo big;;
                sh*b*)          echo big;;
                sh*)            echo little;;
                sparc*)         echo big;;
                x86_64*)        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	# Copyright 1999-2006 Gentoo Foundation
2	# Distributed under the terms of the GNU General Public License v2
3	# $Header: /var/cvsroot/gentoo-x86/eclass/toolchain-funcs.eclass,v 1.53 2006/01/15 20:31:52 vapier Exp $
4	#
5	# Author: Toolchain Ninjas <toolchain@gentoo.org>
6	#
7	# This eclass contains (or should) functions to get common info
8	# about the toolchain (libc/compiler/binutils/etc...)
9
10	inherit multilib
11
12	DESCRIPTION="Based on the ${ECLASS} eclass"
13
14	tc-getPROG() {
15	local var=$1
16	local prog=$2
17
18	if [[ -n ${!var} ]] ; then
19	echo "${!var}"
20	return 0
21	fi
22
23	local search=
24	[[ -n $3 ]] && search=$(type -p "$3-${prog}")
25	[[ -z ${search} && -n ${CHOST} ]] && search=$(type -p "${CHOST}-${prog}")
26	[[ -n ${search} ]] && prog=${search##*/}
27
28	export ${var}=${prog}
29	echo "${!var}"
30	}
31
32	# Returns the name of the archiver
33	tc-getAR() { tc-getPROG AR ar "$@"; }
34	# Returns the name of the assembler
35	tc-getAS() { tc-getPROG AS as "$@"; }
36	# Returns the name of the C compiler
37	tc-getCC() { tc-getPROG CC gcc "$@"; }
38	# Returns the name of the C++ compiler
39	tc-getCXX() { tc-getPROG CXX g++ "$@"; }
40	# Returns the name of the linker
41	tc-getLD() { tc-getPROG LD ld "$@"; }
42	# Returns the name of the symbol/object thingy
43	tc-getNM() { tc-getPROG NM nm "$@"; }
44	# Returns the name of the archiver indexer
45	tc-getRANLIB() { tc-getPROG RANLIB ranlib "$@"; }
46	# Returns the name of the fortran compiler
47	tc-getF77() { tc-getPROG F77 f77 "$@"; }
48	# Returns the name of the java compiler
49	tc-getGCJ() { tc-getPROG GCJ gcj "$@"; }
50
51	# Returns the name of the C compiler for build
52	tc-getBUILD_CC() {
53	local v
54	for v in CC_FOR_BUILD BUILD_CC HOSTCC ; do
55	if [[ -n ${!v} ]] ; then
56	export BUILD_CC=${!v}
57	echo "${!v}"
58	return 0
59	fi
60	done
61
62	local search=
63	if [[ -n ${CBUILD} ]] ; then
64	search=$(type -p ${CBUILD}-gcc)
65	search=${search##*/}
66	fi
67	search=${search:-gcc}
68
69	export BUILD_CC=${search}
70	echo "${search}"
71	}
72
73	# Quick way to export a bunch of vars at once
74	tc-export() {
75	local var
76	for var in "$@" ; do
77	eval tc-get${var} > /dev/null
78	done
79	}
80
81	# A simple way to see if we're using a cross-compiler ...
82	tc-is-cross-compiler() {
83	return $([[ ${CBUILD:-${CHOST}} != ${CHOST} ]])
84	}
85
86
87	# Parse information from CBUILD/CHOST/CTARGET rather than
88	# use external variables from the profile.
89	tc-ninja_magic_to_arch() {
90	ninj() { [[ ${type} == "kern" ]] && echo $1 \|\| echo $2 ; }
91
92	local type=$1
93	local host=$2
94	[[ -z ${host} ]] && host=${CTARGET:-${CHOST}}
95
96	case ${host} in
97	alpha*) echo alpha;;
98	arm*) echo arm;;
99	bfin*) ninj blackfin bfin;;
100	cris*) echo cris;;
101	hppa*) ninj parisc hppa;;
102	i?86*) ninj i386 x86;;
103	ia64*) echo ia64;;
104	m68*) echo m68k;;
105	mips*) echo mips;;
106	nios2*) echo nios2;;
107	nios*) echo nios;;
108	powerpc*)
109	# Starting with linux-2.6.15, the 'ppc' and 'ppc64' trees
110	# have been unified into simply 'powerpc', but until 2.6.16,
111	# ppc32 is still using ARCH="ppc" as default
112	if [[ $(KV_to_int ${KV}) -ge $(KV_to_int 2.6.16) ]] && [[ ${type} == "kern" ]] ; then
113	echo powerpc
114	elif [[ $(KV_to_int ${KV}) -eq $(KV_to_int 2.6.15) ]] && [[ ${type} == "kern" ]] ; then
115	if [[ ${PROFILE_ARCH} == "ppc64" ]] ; then
116	echo powerpc
117	else
118	echo ppc
119	fi
120	elif [[ ${host} == powerpc64* ]] ; then
121	echo ppc64
122	elif [[ ${PROFILE_ARCH} == "ppc64" ]] ; then
123	ninj ppc64 ppc
124	else
125	echo ppc
126	fi
127	;;
128	s390*) echo s390;;
129	sh64*) ninj sh64 sh;;
130	sh*) echo sh;;
131	sparc64*) ninj sparc64 sparc;;
132	sparc*) [[ ${PROFILE_ARCH} == "sparc64" ]] \
133	&& ninj sparc64 sparc \
134	\|\| echo sparc
135	;;
136	vax*) echo vax;;
137	x86_64*) ninj x86_64 amd64;;
138	*) echo ${ARCH};;
139	esac
140	}
141	tc-arch-kernel() {
142	tc-ninja_magic_to_arch kern $@
143	}
144	tc-arch() {
145	tc-ninja_magic_to_arch portage $@
146	}
147	tc-endian() {
148	local host=$1
149	[[ -z ${host} ]] && host=${CTARGET:-${CHOST}}
150	host=${host%%-*}
151
152	case ${host} in
153	alpha*) echo big;;
154	armb) echo big;;
155	arm*) echo little;;
156	cris*) echo little;;
157	hppa*) echo big;;
158	i?86*) echo little;;
159	ia64*) echo little;;
160	m68*) echo big;;
161	mipsl) echo little;;
162	mips*) echo big;;
163	powerpc*) echo big;;
164	s390*) echo big;;
165	shb) echo big;;
166	sh*) echo little;;
167	sparc*) echo big;;
168	x86_64*) echo little;;
169	*) echo wtf;;
170	esac
171	}
172
173	# Returns the version as by `$CC -dumpversion`
174	gcc-fullversion() {
175	echo "$($(tc-getCC) -dumpversion)"
176	}
177	# Returns the version, but only the <major>.<minor>
178	gcc-version() {
179	echo "$(gcc-fullversion \| cut -f1,2 -d.)"
180	}
181	# Returns the Major version
182	gcc-major-version() {
183	echo "$(gcc-version \| cut -f1 -d.)"
184	}
185	# Returns the Minor version
186	gcc-minor-version() {
187	echo "$(gcc-version \| cut -f2 -d.)"
188	}
189	# Returns the Micro version
190	gcc-micro-version() {
191	echo "$(gcc-fullversion \| cut -f3 -d. \| cut -f1 -d-)"
192	}
193
194	# Returns requested gcc specs directive
195	# Note; later specs normally overwrite earlier ones; however if a later
196	# spec starts with '+' then it appends.
197	# gcc -dumpspecs is parsed first, followed by files listed by "gcc -v"
198	# as "Reading <file>", in order.
199	gcc-specs-directive() {
200	local specfiles=$($(tc-getCC) -v 2>&1 \| awk '$1=="Reading" {print $NF}')
201	$(tc-getCC) -dumpspecs 2> /dev/null \| cat - ${specfiles} \| awk -v directive=$1 \
202	'BEGIN { pspec=""; spec=""; outside=1 }
203	$1=="*"directive":" { pspec=spec; spec=""; outside=0; next }
204	outside \|\| NF==0 \|\| ( substr($1,1,1)=="*" && substr($1,length($1),1)==":" ) { outside=1; next }
205	spec=="" && substr($0,1,1)=="+" { spec=pspec " " substr($0,2); next }
206	{ spec=spec $0 }
207	END { print spec }'
208	return 0
209	}
210
211	# Returns true if gcc sets relro
212	gcc-specs-relro() {
213	local directive
214	directive=$(gcc-specs-directive link_command)
215	return $([[ ${directive/\{!norelro:} != ${directive} ]])
216	}
217	# Returns true if gcc sets now
218	gcc-specs-now() {
219	local directive
220	directive=$(gcc-specs-directive link_command)
221	return $([[ ${directive/\{!nonow:} != ${directive} ]])
222	}
223	# Returns true if gcc builds PIEs
224	gcc-specs-pie() {
225	local directive
226	directive=$(gcc-specs-directive cc1)
227	return $([[ ${directive/\{!nopie:} != ${directive} ]])
228	}
229	# Returns true if gcc builds with the stack protector
230	gcc-specs-ssp() {
231	local directive
232	directive=$(gcc-specs-directive cc1)
233	return $([[ ${directive/\{!fno-stack-protector:} != ${directive} ]])
234	}
235	# Returns true if gcc upgrades fstack-protector to fstack-protector-all
236	gcc-specs-ssp-to-all() {
237	local directive
238	directive=$(gcc-specs-directive cc1)
239	return $([[ ${directive/\{!fno-stack-protector-all:} != ${directive} ]])
240	}