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bitbake.conf/cross.bbclass: Add ability to dynamically change library location 

Add the ability to dynamically change the library directory from "lib" to
other values. This allows the tune files to specifiy altnerative ABIs
which can be dynamically enabled by the multilib BBCLASSEXTEND code.

A variety of approaches have been attempted with this, the immediate
expansions in cross.bbclass being problematic as they are they are expanded
before the bbclass extend event hander runs. This approach ensures the
${baselib} variable is retained in the expressions resolving that complication.

Derived from some ideas from Mark Hatle.

(From OE-Core rev: aeea22da699b276a97ca1a17e3c53176c9afd9de)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Richard Purdie 2011-07-22 13:08:58 +01:00
parent eea4bd731e
commit dffe253336
2 changed files with 14 additions and 8 deletions
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7
meta/classes/cross.bbclass
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@ -38,11 +38,12 @@ DEPENDS_GETTEXT = "gettext-native"
# Path mangling needed by the cross packaging
# Note that we use := here to ensure that libdir and includedir are
# target paths.
target_libdir := "${libdir}"
target_includedir := "${includedir}"
target_base_libdir := "${base_libdir}"
target_base_prefix := "${base_prefix}"
target_prefix := "${prefix}"
target_exec_prefix := "${exec_prefix}"
target_base_libdir = "${target_base_prefix}/${baselib}"
target_libdir = "${target_exec_prefix}/${baselib}"
target_includedir := "${includedir}"
# Overrides for paths
CROSS_TARGET_SYS_DIR = "${MULTIMACH_TARGET_SYS}"

15
meta/conf/bitbake.conf
View File

@ -1,6 +1,13 @@
##################################################################
# Standard target filesystem paths.
##################################################################
#
# If changing these values, beware that native/cross/nativesdk bbclass
# files may also need changes to keep in sync.
#
# Used by multilib code to change the library paths
baselib = "lib"
# Path prefixes
export base_prefix = ""
@ -10,7 +17,7 @@ export exec_prefix = "/usr"
# Base paths
export base_bindir = "${base_prefix}/bin"
export base_sbindir = "${base_prefix}/sbin"
export base_libdir = "${base_prefix}/lib"
export base_libdir = "${base_prefix}/${baselib}"
# Architecture independent paths
export datadir = "${prefix}/share"
@ -26,13 +33,11 @@ export docdir = "${datadir}/doc"
export bindir = "${exec_prefix}/bin"
export sbindir = "${exec_prefix}/sbin"
export libexecdir = "${exec_prefix}/libexec"
export libdir = "${exec_prefix}/lib"
export libdir = "${exec_prefix}/${baselib}"
export includedir = "${exec_prefix}/include"
export oldincludedir = "${exec_prefix}/include"
#
# These must match the various bbclass layout definitions
#
# Linkage between native/cross/nativesdk layouts
base_bindir_native = "/bin"
base_sbindir_native = "/sbin"
sysconfdir_native = "/etc"