scripts/build/arch/powerpc.sh
author "Benoît THÉBAUDEAU" <benoit.thebaudeau@advansee.com>
Thu Jul 28 22:09:31 2011 +0200 (2011-07-28)
changeset 2573 424fa2092ace
parent 1181 2e88d85d6ffc
child 2675 7c288c777455
permissions -rw-r--r--
scripts/libc: do not build add-ons by default

Currently, no --enable-add-ons option is passed to libc configure when
"$(do_libc_add_ons_list ,)" is empty, which makes configure automatically search
for present add-ons. In that case, all present add-ons are built, although
no add-on was selected by the user in the config. Moreover, this can make the
configure fail if some non-standard add-ons like eglibc-localedef are present.

This behavior also leads to an inconsistency from a user point of view between
the following cases:
- LIBC_ADDONS_LIST="", LIBC_GLIBC_USE_PORTS=n and THREADS="none" in the config,
which makes "$(do_libc_add_ons_list ,)" return "", so all present add-ons
are built.
- LIBC_ADDONS_LIST="", LIBC_GLIBC_USE_PORTS=n and THREADS!="none" in the
config, which makes "$(do_libc_add_ons_list ,)" return the add-on supporting
the chosen threading implementation, e.g. "nptl", so only this add-on is
built.

This patch disables the building of all add-ons in that case.

It is still possible to build all present add-ons by adding --enable-add-ons to
LIBC_GLIBC_EXTRA_CONFIG_ARRAY.

Signed-off-by: "Benoît THÉBAUDEAU" <benoit.thebaudeau@advansee.com>
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# Compute powerpc-specific values
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CT_DoArchTupleValues () {
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    # The architecture part of the tuple, override only for 64-bit
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    if [ "${CT_ARCH_64}" = "y" ]; then
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        CT_TARGET_ARCH="powerpc64"
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    fi
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    # Add spe in the tuple if needed
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    case "${CT_LIBC},${CT_ARCH_POWERPC_SPE}" in
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        glibc,|eglibc,)   CT_TARGET_SYS=gnu;;
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        glibc,y|eglibc,y) CT_TARGET_SYS=gnuspe;;
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    esac
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    # Add extra flags for SPE if needed
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    if [ "${CT_ARCH_POWERPC_SPE}" = "y" ]; then
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        CT_ARCH_TARGET_CFLAGS="-mabi=spe -mspe"
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        CT_ARCH_CC_CORE_EXTRA_CONFIG="--enable-e500_double"
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        CT_ARCH_CC_EXTRA_CONFIG="--enable-e500_double"
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    fi
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}