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2009-03-04 Bean <bean123ch@gmail.com>

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* configure.ac: Only test -mcmodel=large option in x86_64-efi, also add
	another option -mno-red-zone.

	* commands/handler.c: Change module description.

	* kern/handler.c: Add missing space at the end of description line.

	* kern/list.c: Likewise.
This commit is contained in:
bean 2009-03-04 05:56:31 +00:00
parent f501677cb2
commit 7e9ca17ace
7 changed files with 102 additions and 10 deletions
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23
configure.ac
View file

@ -299,17 +299,34 @@ fi
if test "x$target_m64" = x1; then
# Force 64-bit mode.
TARGET_CFLAGS="$TARGET_CFLAGS -m64"
TARGET_LDFLAGS="$TARGET_LDFLAGS -m64"
fi
if test "$target_cpu"-"$platform" = x86_64-efi; then
# Use large model to support 4G memory
AC_CACHE_CHECK([whether option -mcmodel=large works], grub_cv_cc_mcmodel, [
CFLAGS="-m64 -mcmodel=large"
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
[grub_cv_cc_mcmodel=yes],
[grub_cv_cc_mcmodel=no])
])
if test "x$grub_cv_cc_mcmodel" = xno; then
if test "x$grub_cv_cc_no_mcmodel" = xno; then
AC_MSG_ERROR([-mcmodel=large not supported, upgrade your gcc])
fi
TARGET_CFLAGS="$TARGET_CFLAGS -m64 -mcmodel=large"
TARGET_LDFLAGS="$TARGET_LDFLAGS -m64"
# EFI writes to stack below %rsp, we must not use the red zone
AC_CACHE_CHECK([whether option -mno-red-zone works], grub_cv_cc_no_red_zone, [
CFLAGS="-m64 -mno-red-zone"
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
[grub_cv_cc_no_red_zone=yes],
[grub_cv_cc_no_red_zone=no])
])
if test "x$grub_cv_cc_no_red_zone" = xno; then
AC_MSG_ERROR([-mno-red-zone not supported, upgrade your gcc])
fi
TARGET_CFLAGS="$TARGET_CFLAGS -mcmodel=large -mno-red-zone"
fi
#