/[gentoo-x86]/eclass/flag-o-matic.eclass

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Revision 1.24		Revision 1.27
1	# Copyright 1999-2003 Gentoo Technologies, Inc.	1	# Copyright 1999-2003 Gentoo Technologies, Inc.
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 1.24 2003/07/22 12:48:11 aliz Exp $	3	# $Header: /var/cvsroot/gentoo-x86/eclass/flag-o-matic.eclass,v 1.27 2003/09/24 05:51:32 solar Exp $
4	#	4	#
5	# Author Bart Verwilst <verwilst@gentoo.org>	5	# Author Bart Verwilst <verwilst@gentoo.org>
6		6
7	ECLASS=flag-o-matic	7	ECLASS=flag-o-matic
8	INHERITED="$INHERITED $ECLASS"	8	INHERITED="$INHERITED $ECLASS"
…		…
31	#	31	#
32	#### replace-sparc64-flags ####	32	#### replace-sparc64-flags ####
33	# Sets mcpu to v8 and uses the original value	33	# Sets mcpu to v8 and uses the original value
34	# as mtune if none specified.	34	# as mtune if none specified.
35	#	35	#
36		36	#### filter-mfpmath <math types> ####
		37	# Remove specified math types from the fpmath specification
		38	# If the user has -mfpmath=sse,386, running `filter-mfpmath sse`
		39	# will leave the user with -mfpmath=386
		40	#
		41	#### append-ldflags ####
		42	# Add extra flags to your current LDFLAGS
		43	#
		44	#### etexec-flags ####
		45	# hooked function for hardened-gcc that appends
		46	# -yet_exec {C,CXX,LD}FLAGS when hardened-gcc is installed
		47	# and a package is filtering -fPIC
		48	#
		49	#### fstack-flags ####
		50	# hooked function for hardened-gcc that appends
		51	# -yno_propolice to {C,CXX,LD}FLAGS when hardened-gcc is installed
		52	# and a package is filtering -fstack-protector
		53	#
37		54
38	# C[XX]FLAGS that we allow in strip-flags	55	# C[XX]FLAGS that we allow in strip-flags
39	ALLOWED_FLAGS="-O -O1 -O2 -mcpu -march -mtune -fstack-protector -pipe -g"	56	ALLOWED_FLAGS="-O -O1 -O2 -mcpu -march -mtune -fstack-protector -pipe -g"
40	case "${ARCH}" in	57	case "${ARCH}" in
41	mips) ALLOWED_FLAGS="${ALLOWED_FLAGS} -mips1 -mips2 -mips3 -mips4 -mabi" ;;	58	mips) ALLOWED_FLAGS="${ALLOWED_FLAGS} -mips1 -mips2 -mips3 -mips4 -mabi" ;;
42	amd64) ALLOWED_FLAGS="${ALLOWED_FLAGS} -fPIC" ;;	59	amd64) ALLOWED_FLAGS="${ALLOWED_FLAGS} -fPIC" ;;
		60	alpha) ALLOWED_FLAGS="${ALLOWED_FLAGS} -fPIC" ;;
43	esac	61	esac
44		62
45	# C[XX]FLAGS that we are think is ok, but needs testing	63	# C[XX]FLAGS that we are think is ok, but needs testing
46	# NOTE: currently -Os have issues with gcc3 and K6* arch's	64	# NOTE: currently -Os have issues with gcc3 and K6* arch's
47	UNSTABLE_FLAGS="-Os -O3 -freorder-blocks -fprefetch-loop-arrays"	65	UNSTABLE_FLAGS="-Os -O3 -freorder-blocks -fprefetch-loop-arrays"
…		…
65	replace-flags "$orig_mfpmath" "$new_mfpmath"	83	replace-flags "$orig_mfpmath" "$new_mfpmath"
66	fi	84	fi
67	}	85	}
68		86
69	filter-flags() {	87	filter-flags() {
		88	# we do two loops to avoid the first and last char from being chomped.
		89	for x in $@ ; do
		90	case "${x}" in
		91	-fPIC) etexec-flags;;
		92	-fstack-protector) fstack-flags;;
		93	*) ;;
		94	esac
		95	done
70	# we do this fancy spacing stuff so as to not filter	96	# we do this fancy spacing stuff so as to not filter
71	# out part of a flag ... we want flag atoms ! :D	97	# out part of a flag ... we want flag atoms ! :D
72	export CFLAGS=" ${CFLAGS} "	98	CFLAGS=" ${CFLAGS} "
73	export CXXFLAGS=" ${CXXFLAGS} "	99	CXXFLAGS=" ${CXXFLAGS} "
74	for x in $@ ; do	100	for x in $@ ; do
75	export CFLAGS="${CFLAGS/ ${x} / }"	101	CFLAGS="${CFLAGS/ ${x} / }"
76	export CXXFLAGS="${CXXFLAGS/ ${x} / }"	102	CXXFLAGS="${CXXFLAGS/ ${x} / }"
77	done	103	done
78	export CFLAGS="${CFLAGS:1:${#CFLAGS}-2}"	104	CFLAGS="${CFLAGS:1:${#CFLAGS}-2}"
79	export CXXFLAGS="${CXXFLAGS:1:${#CXXFLAGS}-2}"	105	CXXFLAGS="${CXXFLAGS:1:${#CXXFLAGS}-2}"
80	}	106	}
81		107
82	append-flags() {	108	append-flags() {
83	CFLAGS="${CFLAGS} $@"	109	CFLAGS="${CFLAGS} $@"
84	CXXFLAGS="${CXXFLAGS} $@"	110	CXXFLAGS="${CXXFLAGS} $@"
		111	for x in $@; do
		112	[ "${x}" = "-fno-stack-protector" ] &&
		113	fstack-flags
		114	done
85	}	115	}
86		116
87	replace-flags() {	117	replace-flags() {
88	CFLAGS="${CFLAGS/${1}/${2} }"	118	CFLAGS="${CFLAGS/${1}/${2} }"
89	CXXFLAGS="${CXXFLAGS/${1}/${2} }"	119	CXXFLAGS="${CXXFLAGS/${1}/${2} }"
…		…
185	do	215	do
186	CXXFLAGS="${CXXFLAGS/-mcpu=${x}/-mcpu=v8 -mtune=${x}}"	216	CXXFLAGS="${CXXFLAGS/-mcpu=${x}/-mcpu=v8 -mtune=${x}}"
187	done	217	done
188	fi	218	fi
189	}	219	}
		220
		221	append-ldflags() {
		222	LDFLAGS="${LDFLAGS} $@"
		223	}
		224
		225	etexec-flags() {
		226	has_version 'sys-devel/hardened-gcc' && {
		227	debug-print ">>> appending flags -yet_exec"
		228	append-flags -yet_exec
		229	append-ldflags -yet_exec
		230	}
		231	}
		232
		233	fstack-flags() {
		234	has_version 'sys-devel/hardened-gcc' && {
		235	debug-print ">>> appending flags -yno_propolice"
		236	append-flags -yno_propolice
		237	append-ldflags -yno_propolice
		238	}
		239	}

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