[OE-core] [PATCH 1/1] eglibc: migrate configurability from oe

Saul Wold sgw at linux.intel.com
Fri Jun 3 01:14:29 UTC 2011


On 06/02/2011 02:41 AM, Kang Kai wrote:
> From: Kang Kai<kai.kang at windriver.com>
>
> Migrate configurability from oe, try to shrink minimal image size
>
> The switch is in local.conf.sample, uncomment the line
> DISTRO_FEATURES_EGLIBC = ""
> and write what options you want to enable.
>
> If want to disable locale-code charsets or locales, you have to uncomment
> PACKAGE_NO_GCONV = 1
> Because without this, it fails on package_do_split_gconvs in libc-package.bbclass
>
This should really be posted on the 
openembedded-core at lists.openembedded.org alias so that all can see it.

> Signed-off-by: Kang Kai<kai.kang at windriver.com>
> ---
>   meta-yocto/conf/local.conf.sample                  |   17 ++++++
>   .../eglibc-2.13-fix-macro-RTLD_DEBUG.patch         |   20 +++++++
>   meta/recipes-core/eglibc/eglibc-options.inc        |   55 ++++++++++++++++++++
>   meta/recipes-core/eglibc/eglibc.inc                |    6 ++
>   meta/recipes-core/eglibc/eglibc_2.13.bb            |    4 +-
>   5 files changed, 101 insertions(+), 1 deletions(-)
>   create mode 100644 meta/recipes-core/eglibc/eglibc-2.13/eglibc-2.13-fix-macro-RTLD_DEBUG.patch
>   create mode 100644 meta/recipes-core/eglibc/eglibc-options.inc
>
> diff --git a/meta-yocto/conf/local.conf.sample b/meta-yocto/conf/local.conf.sample
> index 359e510..310e51e 100644
> --- a/meta-yocto/conf/local.conf.sample
> +++ b/meta-yocto/conf/local.conf.sample
> @@ -87,6 +87,23 @@ PACKAGE_CLASSES ?= "package_rpm package_ipk"
>   # NOTE: if listing mklibs&  prelink both, then make sure mklibs is before prelink
>   USER_CLASSES ?= "image-mklibs image-prelink"
>
> +# eglibc configurability is used to reduce minimal images's size.
> +# PACKAGE_NO_GCONV should be set to 1, or locale-code posix-clang-wchar
> +# charsets locales need to be include in DISTRO_FEATURES_EGLIBC, please check
> +# package_do_split_gconvs in libc-package.bbclass for detail
> +#PACKAGE_NO_GCONV = 1
> +
> +# if you want to enable any option listed below, please uncomment next line and copy it here
> +#DISTRO_FEATURES_EGLIBC = ""
> +
> +DISTRO_FEATURES_EGLIBC ??= "ipv6 backtrace big-macros bsd cxx-tests catgets charsets \
> +                          crypt crypt-ufc db-aliases envz fcvt fmtmsg fstab ftraverse \
> +                          getlogin idn inet inet-anl libm libm-big locales locale-code \
> +                          memusage nis nsswitch rcmd rtld-debug spawn streams sunrpc utmp \
> +                          utmpx wordexp posix-clang-wchar posix-regexp posix-regexp-glibc \
> +						  posix-wchar-io "
> +
> +
I have some concern with this change being in sample, are these features 
enabled by default, is that the intention?

If someone already has a local.conf then this will not be used, I think 
that the initial soft assignment (??=) needs to be someplace else, like 
in eglibc.inc maybe

Sau!

>   # POKYMODE controls the characteristics of the generated packages/images by
>   # telling poky which type of toolchain to use.
>   #
> diff --git a/meta/recipes-core/eglibc/eglibc-2.13/eglibc-2.13-fix-macro-RTLD_DEBUG.patch b/meta/recipes-core/eglibc/eglibc-2.13/eglibc-2.13-fix-macro-RTLD_DEBUG.patch
> new file mode 100644
> index 0000000..dffc648
> --- /dev/null
> +++ b/meta/recipes-core/eglibc/eglibc-2.13/eglibc-2.13-fix-macro-RTLD_DEBUG.patch
> @@ -0,0 +1,20 @@
> +When disable OPTION_EGLIBC_RTLD_DEBUG, compilation fails.
> +Created on Jun 1, 2011 by Kang Kai<kai.kang at windriver.com>
> +
> +Upstream-Status: Submitted
> +
> +Signed-off-by: Kang Kai<kai.kang at windriver.com>
> +Index: libc/elf/dl-lookup.c
> +===================================================================
> +--- libc/elf/dl-lookup.c	(revision 13356)
> ++++ libc/elf/dl-lookup.c	(working copy)
> +@@ -423,7 +423,9 @@
> + 		     hash table.  */
> + 		  if (__builtin_expect (tab->size, 0))
> + 		    {
> ++              #if __OPTION_EGLIBC_RTLD_DEBUG
> + 		      assert (GLRO(dl_debug_mask)&  DL_DEBUG_PRELINK);
> ++              #endif
> + 		      __rtld_lock_unlock_recursive (tab->lock);
> + 		      goto success;
> + 		    }
> diff --git a/meta/recipes-core/eglibc/eglibc-options.inc b/meta/recipes-core/eglibc/eglibc-options.inc
> new file mode 100644
> index 0000000..7cd0287
> --- /dev/null
> +++ b/meta/recipes-core/eglibc/eglibc-options.inc
> @@ -0,0 +1,55 @@
> +def eglibc_cfg(feature, features, tokens, cnf):
> +	if type(tokens) == type(""):
> +		tokens = [tokens]
> +	if type(features) == type([]) and feature in features:
> +		cnf.extend([token + ' = y' for token in tokens])
> +	else:
> +		for token in tokens:
> +			cnf.extend([token + ' = n'])
> +			if token == 'OPTION_EGLIBC_NSSWITCH':
> +				cnf.extend(["OPTION_EGLIBC_NSSWITCH_FIXED_CONFIG = ${S}/nss/nsswitch.conf"])
> +				cnf.extend(["OPTION_EGLIBC_NSSWITCH_FIXED_FUNCTIONS = ${S}/nss/fixed-nsswitch.functions"])
> +
> +# Map distro features to eglibc options settings
> +def features_to_eglibc_settings(d):
> +        cnf = ([])
> +        distro_features = (bb.data.getVar('DISTRO_FEATURES_EGLIBC', d, True) or '').split()
> +        eglibc_cfg('ipv6',      distro_features, 'OPTION_EGLIBC_ADVANCED_INET6', cnf)
> +        eglibc_cfg('backtrace',      distro_features, 'OPTION_EGLIBC_BACKTRACE', cnf)
> +        eglibc_cfg('big-macros',      distro_features, 'OPTION_EGLIBC_BIG_MACROS', cnf)
> +        eglibc_cfg('bsd',      distro_features, 'OPTION_EGLIBC_BSD', cnf)
> +        eglibc_cfg('cxx-tests',      distro_features, 'OPTION_EGLIBC_CXX_TESTS', cnf)
> +        eglibc_cfg('catgets',      distro_features, 'OPTION_EGLIBC_CATGETS', cnf)
> +        eglibc_cfg('charsets',      distro_features, 'OPTION_EGLIBC_CHARSETS', cnf)
> +        eglibc_cfg('crypt',      distro_features, 'OPTION_EGLIBC_CRYPT', cnf)
> +        eglibc_cfg('crypt-ufc',      distro_features, 'OPTION_EGLIBC_CRYPT_UFC', cnf)
> +        eglibc_cfg('db-aliases',      distro_features, 'OPTION_EGLIBC_DB_ALIASES', cnf)
> +        eglibc_cfg('envz',      distro_features, 'OPTION_EGLIBC_ENVZ', cnf)
> +        eglibc_cfg('fcvt',      distro_features, 'OPTION_EGLIBC_FCVT', cnf)
> +        eglibc_cfg('fmtmsg',      distro_features, 'OPTION_EGLIBC_FMTMSG', cnf)
> +        eglibc_cfg('fstab',      distro_features, 'OPTION_EGLIBC_FSTAB', cnf)
> +        eglibc_cfg('ftraverse',      distro_features, 'OPTION_EGLIBC_FTRAVERSE', cnf)
> +        eglibc_cfg('getlogin',      distro_features, 'OPTION_EGLIBC_GETLOGIN', cnf)
> +        eglibc_cfg('idn',      distro_features, 'OPTION_EGLIBC_IDN', cnf)
> +        eglibc_cfg('inet',      distro_features, 'OPTION_EGLIBC_INET', cnf)
> +        eglibc_cfg('inet-anl',      distro_features, 'OPTION_EGLIBC_INET_ANL', cnf)
> +        eglibc_cfg('libm',      distro_features, 'OPTION_EGLIBC_LIBM', cnf)
> +        eglibc_cfg('libm-big',      distro_features, 'OPTION_EGLIBC_LIBM_BIG', cnf)
> +        eglibc_cfg('locales',      distro_features, 'OPTION_EGLIBC_LOCALES', cnf)
> +        eglibc_cfg('locale-code',      distro_features, 'OPTION_EGLIBC_LOCALE_CODE', cnf)
> +        eglibc_cfg('memusage',      distro_features, 'OPTION_EGLIBC_MEMUSAGE', cnf)
> +        eglibc_cfg('nis',      distro_features, 'OPTION_EGLIBC_NIS', cnf)
> +        eglibc_cfg('nsswitch',      distro_features, 'OPTION_EGLIBC_NSSWITCH', cnf)
> +        eglibc_cfg('rcmd',      distro_features, 'OPTION_EGLIBC_RCMD', cnf)
> +        eglibc_cfg('rtld-debug',      distro_features, 'OPTION_EGLIBC_RTLD_DEBUG', cnf)
> +        eglibc_cfg('spawn',      distro_features, 'OPTION_EGLIBC_SPAWN', cnf)
> +        eglibc_cfg('streams',      distro_features, 'OPTION_EGLIBC_STREAMS', cnf)
> +        eglibc_cfg('sunrpc',      distro_features, 'OPTION_EGLIBC_SUNRPC', cnf)
> +        eglibc_cfg('utmp',      distro_features, 'OPTION_EGLIBC_UTMP', cnf)
> +        eglibc_cfg('utmpx',      distro_features, 'OPTION_EGLIBC_UTMPX', cnf)
> +        eglibc_cfg('wordexp',      distro_features, 'OPTION_EGLIBC_WORDEXP', cnf)
> +        eglibc_cfg('posix-clang-wchar',      distro_features, 'OPTION_POSIX_C_LANG_WIDE_CHAR', cnf)
> +        eglibc_cfg('posix-regexp',      distro_features, 'OPTION_POSIX_REGEXP', cnf)
> +        eglibc_cfg('posix-regexp-glibc',      distro_features, 'OPTION_POSIX_REGEXP_GLIBC', cnf)
> +        eglibc_cfg('posix-wchar-io',      distro_features, 'OPTION_POSIX_WIDE_CHAR_DEVICE_IO', cnf)
> +        return "\n".join(cnf)
> diff --git a/meta/recipes-core/eglibc/eglibc.inc b/meta/recipes-core/eglibc/eglibc.inc
> index 46ffa82..616f1af 100644
> --- a/meta/recipes-core/eglibc/eglibc.inc
> +++ b/meta/recipes-core/eglibc/eglibc.inc
> @@ -28,6 +28,7 @@ DEPENDS = "virtual/${TARGET_PREFIX}gcc-intermediate linux-libc-headers"
>   PROVIDES = "virtual/libc virtual/${TARGET_PREFIX}libc-for-gcc"
>   PROVIDES += "virtual/libintl virtual/libiconv"
>   inherit autotools
> +require eglibc-options.inc
>
>   LEAD_SONAME = "libc.so"
>
> @@ -43,3 +44,8 @@ EXTRA_OEMAKE += ${EGLIBCPARALLELISM}
>   PARALLEL_MAKE = ""
>
>   PACKAGES = "glibc catchsegv sln nscd ldd localedef glibc-utils glibc-dev glibc-doc glibc-locale libsegfault glibc-extra-nss glibc-thread-db glibc-pcprofile"
> +
> +OE_FEATURES = "${@features_to_eglibc_settings(d)}"
> +do_configure_prepend() {
> +	echo '${OE_FEATURES}'>  ${B}/option-groups.config
> +}
> diff --git a/meta/recipes-core/eglibc/eglibc_2.13.bb b/meta/recipes-core/eglibc/eglibc_2.13.bb
> index 398da69..894eb88 100644
> --- a/meta/recipes-core/eglibc/eglibc_2.13.bb
> +++ b/meta/recipes-core/eglibc/eglibc_2.13.bb
> @@ -4,7 +4,7 @@ SRCREV = "13356"
>
>   DEPENDS += "gperf-native"
>   FILESPATHPKG =. "eglibc-svn:"
> -PR = "r0"
> +PR = "r1"
>   PR_append = "+svnr${SRCPV}"
>
>   EGLIBC_BRANCH="eglibc-2_13"
> @@ -16,7 +16,9 @@ SRC_URI = "svn://www.eglibc.org/svn/branches/;module=${EGLIBC_BRANCH};proto=http
>              file://stack-protector-test.patch \
>              file://etc/ld.so.conf \
>              file://generate-supported.mk \
> +           file://eglibc-2.13-fix-macro-RTLD_DEBUG.patch \
>   	   "
> +
>   LIC_FILES_CHKSUM = "file://LICENSES;md5=98a1128c4b58120182cbea3b1752d8b9 \
>         file://COPYING;md5=393a5ca445f6965873eca0259a17f833 \
>         file://posix/rxspencer/COPYRIGHT;md5=dc5485bb394a13b2332ec1c785f5d83a \




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