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configure.ac: Handle powerpc64le compiler 

Also-by: Paulo Flabiano Smorigo <pfsmorigo@linux.vnet.ibm.com>
This commit is contained in:
Vladimir Serbinenko 2015-07-22 01:54:59 +02:00
parent 61c778f640
commit 5c46165a7c
1 changed files with 37 additions and 0 deletions
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37
configure.ac
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@ -116,6 +116,7 @@ if test "x$with_platform" = x; then
x86_64-*) platform=pc ;;
powerpc-*) platform=ieee1275 ;;
powerpc64-*) platform=ieee1275 ;;
powerpc64le-*) platform=ieee1275 ;;
sparc64-*) platform=ieee1275 ;;
mipsel-*) platform=loongson ;;
mips-*) platform=arc ;;
@ -138,6 +139,7 @@ case "$target_cpu"-"$platform" in
x86_64-none) ;;
x86_64-*) target_cpu=i386 ;;
powerpc64-ieee1275) target_cpu=powerpc ;;
powerpc64le-ieee1275) target_cpu=powerpc ;;
esac
# Check if the platform is supported, make final adjustments.
@ -560,6 +562,41 @@ AC_COMPILE_IFELSE(
]])],
[grub_cv_cc_target_clang=no], [grub_cv_cc_target_clang=yes])])
if test x$target_cpu = xpowerpc; then
AC_CACHE_CHECK([for options to get big-endian compilation], grub_cv_target_cc_big_endian, [
grub_cv_target_cc_big_endian=no
for cand in "-target powerpc -Wl,-EB" "-target powerpc" \
"-target powerpc-linux-gnu -Wl,-EB" "-target powerpc-linux-gnu" \
"-mbig-endian"; do
if test x"$grub_cv_target_cc_big_endian" != xno ; then
break
fi
CFLAGS="$TARGET_CFLAGS $cand -Werror"
AC_LINK_IFELSE([AC_LANG_PROGRAM([[
#if defined(__BYTE_ORDER__) && defined(__ORDER_BIG_ENDIAN__) && (__ORDER_BIG_ENDIAN__ != __BYTE_ORDER__)
#error still little endian
#endif
asm (".globl start; start:");
void __main (void);
void __main (void) {}
int main (void);
]], [[]])],
[grub_cv_target_cc_big_endian="$cand"], [])
done
])
if test x"$grub_cv_target_cc_big_endian" = xno ; then
AC_MSG_ERROR([could not force big-endian])
fi
skip_linkflags="$(echo "$grub_cv_target_cc_big_endian"|sed 's@-Wl,-EB@@')"
TARGET_CFLAGS="$TARGET_CFLAGS $skip_linkflags"
TARGET_CPPFLAGS="$TARGET_CPPFLAGS $skip_linkflags"
TARGET_CCASFLAGS="$TARGET_CCASFLAGS $skip_linkflags"
TARGET_LDFLAGS="$TARGET_LDFLAGS $grub_cv_target_cc_big_endian"
fi
AC_CACHE_CHECK([for options to compile assembly], [grub_cv_cc_target_asm_compile], [
test_program=
case "x$target_cpu-$platform" in