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Set values for libc_commonpagesize and libc_relro_required for the ARM port to enable relro by default and suppress a warning at configure time. ChangeLog: 2014-05-09 Will Newton <will.newton@linaro.org> * sysdeps/arm/preconfigure.ac: Set libc_commonpagesize and libc_relro_required for ARM. * sysdeps/arm/preconfigure: Regenerate.
72 lines
2.4 KiB
Plaintext
72 lines
2.4 KiB
Plaintext
# This file is generated from configure.ac by Autoconf. DO NOT EDIT!
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# Local preconfigure fragment for sysdeps/arm
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case "$machine" in
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arm*)
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case $config_os in
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linux-gnueabi*)
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# If the compiler enables unwind tables by default, this causes
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# problems with undefined symbols in -nostdlib link tests. To
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# avoid this, add -fno-unwind-tables here and remove it in
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# sysdeps/unix/sysv/linux/arm/configure.ac after those tests have
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# been run.
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if test "${CFLAGS+set}" != "set"; then
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CFLAGS="-g -O2"
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fi
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CFLAGS="$CFLAGS -fno-unwind-tables"
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;;
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linux*)
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as_fn_error $? "Old ABI no longer supported" "$LINENO" 5
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;;
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esac
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base_machine=arm
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# Lets ask the compiler which ARM family we've got
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# Unfortunately it doesn't define any flags for implementations
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# that you might pass to -mcpu or -mtune
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# Note if you add patterns here you must ensure that
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# an appropriate directory exists in sysdeps/arm
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archcppflag=`$CC $CFLAGS $CPPFLAGS -E -dM -xc /dev/null |
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sed -n 's/^#define \(__ARM_ARCH_[0-9].*__\) .*$/\1/p'`
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case "x$archcppflag" in
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x__ARM_ARCH_89*__)
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machine=armv7
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{ $as_echo "$as_me:${as_lineno-$LINENO}: Found compiler is configured for something newer than v7 - using v7" >&5
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$as_echo "$as_me: Found compiler is configured for something newer than v7 - using v7" >&6;}
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;;
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x__ARM_ARCH_7A__)
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machine=armv7
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{ $as_echo "$as_me:${as_lineno-$LINENO}: Found compiler is configured for $machine" >&5
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$as_echo "$as_me: Found compiler is configured for $machine" >&6;}
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;;
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x__ARM_ARCH_6T2__)
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machine=armv6t2
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{ $as_echo "$as_me:${as_lineno-$LINENO}: Found compiler is configured for $machine" >&5
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$as_echo "$as_me: Found compiler is configured for $machine" >&6;}
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;;
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x__ARM_ARCH_6*__)
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machine=armv6
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{ $as_echo "$as_me:${as_lineno-$LINENO}: Found compiler is configured for $machine" >&5
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$as_echo "$as_me: Found compiler is configured for $machine" >&6;}
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;;
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*)
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machine=arm
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{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: arm/preconfigure: Did not find ARM architecture type; using default" >&5
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$as_echo "$as_me: WARNING: arm/preconfigure: Did not find ARM architecture type; using default" >&2;}
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;;
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esac
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machine=arm/$machine
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esac
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case "$machine" in
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arm*)
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# Parameters to allow auto-detection of -z relro.
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libc_commonpagesize=0x1000
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libc_relro_required=yes
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;;
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esac
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