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The ARM preconfigure script tries to detect the capabilities of the target platform by checking the compiler's predefined architecture macros. However, if the compiler is tuning for AArch32 on ARMv8/v9 this step fails: checking for sysdeps preconfigure fragments... aarch64 alpha arc arm WARNING: arm/preconfigure: Did not find ARM architecture type; using default This is because preconfigure.ac doesn't escape the square brackets in the glob for matching compilers targeting ARMv8. Adding another pair of brackets to escape the first pair fixes this: checking for sysdeps preconfigure fragments... aarch64 alpha arc arm Found compiler is configured for something newer than v7 - using v7 Signed-off-by: Felix Riemann <felix.riemann@sma.de> Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
205 lines
6.5 KiB
Plaintext
205 lines
6.5 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 "$machine" in
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arm*)
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# If the compiler enables unwind tables by default, this causes
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# problems with undefined symbols in -nostdlib link tests. To
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# avoid this, add -fno-unwind-tables here and remove it in
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# sysdeps/arm/configure.ac after those tests have been run.
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if test "${CFLAGS+set}" != "set"; then
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CFLAGS="-g -O2"
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fi
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CFLAGS="$CFLAGS -fno-unwind-tables"
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base_machine=arm
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# Lets ask the compiler which ARM family we've got
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# Unfortunately it doesn't define any flags for implementations
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# that you might pass to -mcpu or -mtune
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# Note if you add patterns here you must ensure that
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# an appropriate directory exists in sysdeps/arm
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archcppflag=`$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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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for grep that handles long lines and -e" >&5
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$as_echo_n "checking for grep that handles long lines and -e... " >&6; }
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if ${ac_cv_path_GREP+:} false; then :
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$as_echo_n "(cached) " >&6
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else
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if test -z "$GREP"; then
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ac_path_GREP_found=false
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# Loop through the user's path and test for each of PROGNAME-LIST
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as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
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for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
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do
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IFS=$as_save_IFS
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test -z "$as_dir" && as_dir=.
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for ac_prog in grep ggrep; do
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for ac_exec_ext in '' $ac_executable_extensions; do
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ac_path_GREP="$as_dir/$ac_prog$ac_exec_ext"
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as_fn_executable_p "$ac_path_GREP" || continue
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# Check for GNU ac_path_GREP and select it if it is found.
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# Check for GNU $ac_path_GREP
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case `"$ac_path_GREP" --version 2>&1` in
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*GNU*)
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ac_cv_path_GREP="$ac_path_GREP" ac_path_GREP_found=:;;
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*)
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ac_count=0
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$as_echo_n 0123456789 >"conftest.in"
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while :
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do
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cat "conftest.in" "conftest.in" >"conftest.tmp"
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mv "conftest.tmp" "conftest.in"
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cp "conftest.in" "conftest.nl"
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$as_echo 'GREP' >> "conftest.nl"
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"$ac_path_GREP" -e 'GREP$' -e '-(cannot match)-' < "conftest.nl" >"conftest.out" 2>/dev/null || break
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diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
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as_fn_arith $ac_count + 1 && ac_count=$as_val
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if test $ac_count -gt ${ac_path_GREP_max-0}; then
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# Best one so far, save it but keep looking for a better one
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ac_cv_path_GREP="$ac_path_GREP"
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ac_path_GREP_max=$ac_count
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fi
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# 10*(2^10) chars as input seems more than enough
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test $ac_count -gt 10 && break
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done
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rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
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esac
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$ac_path_GREP_found && break 3
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done
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done
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done
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IFS=$as_save_IFS
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if test -z "$ac_cv_path_GREP"; then
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as_fn_error $? "no acceptable grep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
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fi
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else
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ac_cv_path_GREP=$GREP
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fi
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fi
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_GREP" >&5
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$as_echo "$ac_cv_path_GREP" >&6; }
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GREP="$ac_cv_path_GREP"
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for egrep" >&5
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$as_echo_n "checking for egrep... " >&6; }
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if ${ac_cv_path_EGREP+:} false; then :
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$as_echo_n "(cached) " >&6
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else
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if echo a | $GREP -E '(a|b)' >/dev/null 2>&1
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then ac_cv_path_EGREP="$GREP -E"
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else
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if test -z "$EGREP"; then
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ac_path_EGREP_found=false
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# Loop through the user's path and test for each of PROGNAME-LIST
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as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
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for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
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do
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IFS=$as_save_IFS
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test -z "$as_dir" && as_dir=.
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for ac_prog in egrep; do
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for ac_exec_ext in '' $ac_executable_extensions; do
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ac_path_EGREP="$as_dir/$ac_prog$ac_exec_ext"
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as_fn_executable_p "$ac_path_EGREP" || continue
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# Check for GNU ac_path_EGREP and select it if it is found.
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# Check for GNU $ac_path_EGREP
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case `"$ac_path_EGREP" --version 2>&1` in
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*GNU*)
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ac_cv_path_EGREP="$ac_path_EGREP" ac_path_EGREP_found=:;;
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*)
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ac_count=0
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$as_echo_n 0123456789 >"conftest.in"
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while :
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do
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cat "conftest.in" "conftest.in" >"conftest.tmp"
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mv "conftest.tmp" "conftest.in"
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cp "conftest.in" "conftest.nl"
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$as_echo 'EGREP' >> "conftest.nl"
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"$ac_path_EGREP" 'EGREP$' < "conftest.nl" >"conftest.out" 2>/dev/null || break
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diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
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as_fn_arith $ac_count + 1 && ac_count=$as_val
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if test $ac_count -gt ${ac_path_EGREP_max-0}; then
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# Best one so far, save it but keep looking for a better one
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ac_cv_path_EGREP="$ac_path_EGREP"
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ac_path_EGREP_max=$ac_count
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fi
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# 10*(2^10) chars as input seems more than enough
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test $ac_count -gt 10 && break
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done
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rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
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esac
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$ac_path_EGREP_found && break 3
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done
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done
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done
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IFS=$as_save_IFS
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if test -z "$ac_cv_path_EGREP"; then
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as_fn_error $? "no acceptable egrep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
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fi
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else
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ac_cv_path_EGREP=$EGREP
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fi
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fi
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fi
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_EGREP" >&5
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$as_echo "$ac_cv_path_EGREP" >&6; }
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EGREP="$ac_cv_path_EGREP"
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cat confdefs.h - <<_ACEOF >conftest.$ac_ext
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/* end confdefs.h. */
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#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
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yes
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#endif
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_ACEOF
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if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
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$EGREP "yes" >/dev/null 2>&1; then :
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endianness=le
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else
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endianness=be
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fi
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rm -f conftest*
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machine=arm/$endianness/$machine
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with_fp_cond="!defined __SOFTFP__"
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esac
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