commit: 7ce7d487acf67d28db2eea56569c6fcb499bf6c9
Author: Fabian Groffen <grobian <AT> gentoo <DOT> org>
AuthorDate: Sun Mar 20 18:22:24 2016 +0000
Commit: Fabian Groffen <grobian <AT> gentoo <DOT> org>
CommitDate: Sun Mar 20 18:22:24 2016 +0000
URL: https://gitweb.gentoo.org/repo/proj/prefix.git/commit/?id=7ce7d487
eclass/toolchain-funcs: sync, bug #576680
eclass/toolchain-funcs.eclass | 125 ++++++++++++++++++++++++++++++++++--------
1 file changed, 102 insertions(+), 23 deletions(-)
diff --git a/eclass/toolchain-funcs.eclass b/eclass/toolchain-funcs.eclass
index e6ebd49..4a5c5e1 100644
--- a/eclass/toolchain-funcs.eclass
+++ b/eclass/toolchain-funcs.eclass
@@ -1,6 +1,6 @@
-# Copyright 1999-2014 Gentoo Foundation
+# Copyright 1999-2015 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
-# $Header: /var/cvsroot/gentoo-x86/eclass/toolchain-funcs.eclass,v 1.131
2014/11/01 05:19:20 vapier Exp $
+# $Id$
# @ECLASS: toolchain-funcs.eclass
# @MAINTAINER:
@@ -84,6 +84,10 @@ tc-getRANLIB() { tc-getPROG RANLIB ranlib "$@"; }
# @USAGE: [toolchain prefix]
# @RETURN: name of the object copier
tc-getOBJCOPY() { tc-getPROG OBJCOPY objcopy "$@"; }
+# @FUNCTION: tc-getOBJDUMP
+# @USAGE: [toolchain prefix]
+# @RETURN: name of the object dumper
+tc-getOBJDUMP() { tc-getPROG OBJDUMP objdump "$@"; }
# @FUNCTION: tc-getF77
# @USAGE: [toolchain prefix]
# @RETURN: name of the Fortran 77 compiler
@@ -96,6 +100,10 @@ tc-getFC() { tc-getPROG FC gfortran "$@"; }
# @USAGE: [toolchain prefix]
# @RETURN: name of the java compiler
tc-getGCJ() { tc-getPROG GCJ gcj "$@"; }
+# @FUNCTION: tc-getGO
+# @USAGE: [toolchain prefix]
+# @RETURN: name of the Go compiler
+tc-getGO() { tc-getPROG GO gccgo "$@"; }
# @FUNCTION: tc-getPKG_CONFIG
# @USAGE: [toolchain prefix]
# @RETURN: name of the pkg-config tool
@@ -219,10 +227,13 @@ tc-is-static-only() {
# Export common build related compiler settings.
tc-export_build_env() {
tc-export "$@"
+ # Some build envs will initialize vars like:
+ # : ${BUILD_LDFLAGS:-${LDFLAGS}}
+ # So make sure all variables are non-empty. #526734
: ${BUILD_CFLAGS:=-O1 -pipe}
: ${BUILD_CXXFLAGS:=-O1 -pipe}
- : ${BUILD_CPPFLAGS:=}
- : ${BUILD_LDFLAGS:=}
+ : ${BUILD_CPPFLAGS:= }
+ : ${BUILD_LDFLAGS:= }
export BUILD_{C,CXX,CPP,LD}FLAGS
# Some packages use XXX_FOR_BUILD.
@@ -297,7 +308,78 @@ tc-env_build() {
# }
# @CODE
econf_build() {
- tc-env_build econf --build=${CBUILD:-${CHOST}} "$@"
+ local CBUILD=${CBUILD:-${CHOST}}
+ tc-env_build econf --build=${CBUILD} --host=${CBUILD} "$@"
+}
+
+# @FUNCTION: tc-ld-is-gold
+# @USAGE: [toolchain prefix]
+# @DESCRIPTION:
+# Return true if the current linker is set to gold.
+tc-ld-is-gold() {
+ local out
+
+ # First check the linker directly.
+ out=$($(tc-getLD "$@") --version 2>&1)
+ if [[ ${out} == *"GNU gold"* ]] ; then
+ return 0
+ fi
+
+ # Then see if they're selecting gold via compiler flags.
+ # Note: We're assuming they're using LDFLAGS to hold the
+ # options and not CFLAGS/CXXFLAGS.
+ local base="${T}/test-tc-gold"
+ cat <<-EOF > "${base}.c"
+ int main() { return 0; }
+ EOF
+ out=$($(tc-getCC "$@") ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} -Wl,--version
"${base}.c" -o "${base}" 2>&1)
+ rm -f "${base}"*
+ if [[ ${out} == *"GNU gold"* ]] ; then
+ return 0
+ fi
+
+ # No gold here!
+ return 1
+}
+
+# @FUNCTION: tc-ld-disable-gold
+# @USAGE: [toolchain prefix]
+# @DESCRIPTION:
+# If the gold linker is currently selected, configure the compilation
+# settings so that we use the older bfd linker instead.
+tc-ld-disable-gold() {
+ if ! tc-ld-is-gold "$@" ; then
+ # They aren't using gold, so nothing to do!
+ return
+ fi
+
+ ewarn "Forcing usage of the BFD linker instead of GOLD"
+
+ # Set up LD to point directly to bfd if it's available.
+ # We need to extract the first word in case there are flags appended
+ # to its value (like multilib). #545218
+ local ld=$(tc-getLD "$@")
+ local bfd_ld="${ld%% *}.bfd"
+ local path_ld=$(which "${bfd_ld}" 2>/dev/null)
+ [[ -e ${path_ld} ]] && export LD=${bfd_ld}
+
+ # Set up LDFLAGS to select gold based on the gcc version.
+ local major=$(gcc-major-version "$@")
+ local minor=$(gcc-minor-version "$@")
+ if [[ ${major} -lt 4 ]] || [[ ${major} -eq 4 && ${minor} -lt 8 ]] ; then
+ # <=gcc-4.7 requires some coercion. Only works if bfd exists.
+ if [[ -e ${path_ld} ]] ; then
+ local d="${T}/bfd-linker"
+ mkdir -p "${d}"
+ ln -sf "${path_ld}" "${d}"/ld
+ export LDFLAGS="${LDFLAGS} -B${d}"
+ else
+ die "unable to locate a BFD linker to bypass gold"
+ fi
+ else
+ # gcc-4.8+ supports -fuse-ld directly.
+ export LDFLAGS="${LDFLAGS} -fuse-ld=bfd"
+ fi
}
# @FUNCTION: tc-has-openmp
@@ -397,10 +479,10 @@ ninj() { [[ ${type} == "kern" ]] && echo $1 || echo $2 ; }
arm*) echo arm;;
avr*) ninj avr32 avr;;
bfin*) ninj blackfin bfin;;
- c6x) echo c6x;;
+ c6x*) echo c6x;;
cris*) echo cris;;
- frv) echo frv;;
- hexagon) echo hexagon;;
+ frv*) echo frv;;
+ hexagon*) echo hexagon;;
hppa*) ninj parisc hppa;;
i?86*)
# Starting with linux-2.6.24, the 'x86_64' and 'i386'
@@ -414,11 +496,12 @@ ninj() { [[ ${type} == "kern" ]] && echo $1 || echo $2 ; }
;;
ia64*) echo ia64;;
m68*) echo m68k;;
- metag) echo metag;;
+ metag*) echo metag;;
+ microblaze*) echo microblaze;;
mips*) echo mips;;
nios2*) echo nios2;;
nios*) echo nios;;
- or32) echo openrisc;;
+ or32*) echo openrisc;;
powerpc*)
# Starting with linux-2.6.15, the 'ppc' and 'ppc64'
trees
# have been unified into simply 'powerpc', but until
2.6.16,
@@ -441,7 +524,7 @@ ninj() { [[ ${type} == "kern" ]] && echo $1 || echo $2 ; }
;;
riscv*) echo riscv;;
s390*) echo s390;;
- score) echo score;;
+ score*) echo score;;
sh64*) ninj sh64 sh;;
sh*) echo sh;;
sparc64*) ninj sparc64 sparc;;
@@ -674,7 +757,9 @@ gen_usr_ldscript() {
# Eventually we'd like to get rid of this func completely #417451
case ${CTARGET:-${CHOST}} in
*-darwin*) type -P scanmacho > /dev/null || return ;; # excluded for
now due to known breakage
- *linux*|*-freebsd*|*-openbsd*|*-netbsd*|*-solaris*) type -P scanelf >
/dev/null || return;; # Prefix
+ *-android*) return 0 ;;
+ *linux*|*-freebsd*|*-openbsd*|*-netbsd*)
+ use prefix && return 0 ;;
*) return 0 ;;
esac
@@ -719,10 +804,7 @@ gen_usr_ldscript() {
else
tlib=$(scanmacho -qF'%S#F'
"${ED}"/${libdir}/${lib})
fi
- if [[ -z ${tlib} ]] ; then
- ewarn "gen_usr_ldscript: unable to read
install_name from ${lib}"
- tlib=${lib}
- fi
+ [[ -z ${tlib} ]] && die "unable to read install_name
from ${lib}"
tlib=${tlib##*/}
if ${auto} ; then
@@ -731,7 +813,7 @@ gen_usr_ldscript() {
if [[ ${tlib} != ${lib%${suffix}}.*${suffix#.}
]] ; then
mv
"${ED}"/usr/${libdir}/${tlib%${suffix}}.*${suffix#.} "${ED}"/${libdir}/ || die
fi
- [[ ${tlib} != ${lib} ]] && rm -f
"${ED}"/${libdir}/${lib}
+ rm -f "${ED}"/${libdir}/${lib}
fi
# Mach-O files have an id, which is like a soname, it
tells how
@@ -778,16 +860,13 @@ gen_usr_ldscript() {
*)
if ${auto} ; then
tlib=$(scanelf -qF'%S#F'
"${ED}"/usr/${libdir}/${lib})
- if [[ -z ${tlib} ]] ; then
- ewarn "gen_usr_ldscript: unable to read
SONAME from ${lib}"
- tlib=${lib}
- fi
+ [[ -z ${tlib} ]] && die "unable to read SONAME
from ${lib}"
mv "${ED}"/usr/${libdir}/${lib}*
"${ED}"/${libdir}/ || die
# some SONAMEs are funky: they encode a version
before the .so
if [[ ${tlib} != ${lib}* ]] ; then
mv "${ED}"/usr/${libdir}/${tlib}*
"${ED}"/${libdir}/ || die
fi
- [[ ${tlib} != ${lib} ]] && rm -f
"${ED}"/${libdir}/${lib}
+ rm -f "${ED}"/${libdir}/${lib}
else
tlib=${lib}
fi
@@ -799,7 +878,7 @@ gen_usr_ldscript() {
redirects the linker to the real lib. And yes, this
works in the cross-
compiling scenario as the sysroot-ed linker will
prepend the real path.
- See bug http://bugs.gentoo.org/4411 for more info.
+ See bug https://bugs.gentoo.org/4411 for more info.
*/
${output_format}
GROUP ( ${EPREFIX}/${libdir}/${tlib} )
