scripts/build/arch/arm.sh
author Titus von Boxberg <titus@v9g.de>
Sat Aug 21 16:46:24 2010 +0200 (2010-08-21)
changeset 2090 e3771cd6e420
parent 1596 ca1bf632da51
child 2563 e17f35b05539
permissions -rw-r--r--
libc/glibc: repair debugging with gdb (glibc 2.9)

Without this patch, crosstool-ng-built glibc-2.9 prevents
debugging any exeutable with gdb.
gdb says:
[Thread debugging using libthread_db enabled]
find_new_threads_callback: cannot get thread info: generic error
See also https://bugzilla.redhat.com/show_bug.cgi?id=487212
for a discussion of the bug and the solution.
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# Compute ARM-specific values
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CT_DoArchTupleValues() {
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    # The architecture part of the tuple:
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    CT_TARGET_ARCH="${CT_ARCH}${target_endian_eb}"
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    # The system part of the tuple:
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    case "${CT_LIBC},${CT_ARCH_ARM_EABI}" in
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        *glibc,y)   CT_TARGET_SYS=gnueabi;;
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        uClibc,y)   CT_TARGET_SYS=uclibcgnueabi;;
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        *,y)        CT_TARGET_SYS=eabi;;
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    esac
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    # Set the default instrcution set mode
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    case "${CT_ARCH_ARM_MODE}" in
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        arm)    ;;
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        thumb)
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            CT_ARCH_CC_CORE_EXTRA_CONFIG="--with-mode=thumb"
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            CT_ARCH_CC_EXTRA_CONFIG="--with-mode=thumb"
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#            CT_ARCH_TARGET_CFLAGS="-mthumb"
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            ;;
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    esac
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    if [ "${CT_ARCH_ARM_INTERWORKING}" = "y" ]; then
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        CT_ARCH_TARGET_CFLAGS+=" -mthumb-interwork"
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    fi
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}