diff options
Diffstat (limited to 'meta/recipes-bsp/grub/files/0002-configure-Check-for-falign-jumps-1-beside-falign-loo.patch')
| -rw-r--r-- | meta/recipes-bsp/grub/files/0002-configure-Check-for-falign-jumps-1-beside-falign-loo.patch | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/meta/recipes-bsp/grub/files/0002-configure-Check-for-falign-jumps-1-beside-falign-loo.patch b/meta/recipes-bsp/grub/files/0002-configure-Check-for-falign-jumps-1-beside-falign-loo.patch new file mode 100644 index 0000000000..437e5b29b2 --- /dev/null +++ b/meta/recipes-bsp/grub/files/0002-configure-Check-for-falign-jumps-1-beside-falign-loo.patch @@ -0,0 +1,59 @@ +From e372dcb0d4541ee9b9682cde088ec87a7b238ca2 Mon Sep 17 00:00:00 2001 +From: Fangrui Song via Grub-devel <grub-devel@gnu.org> +Date: Thu, 26 Aug 2021 09:02:32 -0700 +Subject: [PATCH 2/2] configure: Check for -falign-jumps=1 beside + -falign-loops=1 + +The Clang does not support -falign-jumps and only recently gained support +for -falign-loops. The -falign-jumps=1 should be tested beside +-fliang-loops=1 to avoid passing unrecognized options to the Clang: + + clang-14: error: optimization flag '-falign-jumps=1' is not supported [-Werror,-Wignored-optimization-argument] + +The -falign-functions=1 is supported by GCC 5.1.0/Clang 3.8.0. So, just +add the option unconditionally. + +Upstream-Status: Backport [https://git.savannah.gnu.org/cgit/grub.git/commit/?id=e372dcb0d4541ee9b9682cde088ec87a7b238ca2] +Signed-off-by: Fangrui Song <maskray@google.com> +Acked-by: Paul Menzel <pmenzel@molgen.mpg.de> +Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com> +--- + configure.ac | 15 ++++++++++++++- + 1 file changed, 14 insertions(+), 1 deletion(-) + +diff --git a/configure.ac b/configure.ac +index 9a12151bd..eeb5d2211 100644 +--- a/configure.ac ++++ b/configure.ac +@@ -798,6 +798,8 @@ fi + + # Force no alignment to save space on i386. + if test "x$target_cpu" = xi386; then ++ TARGET_CFLAGS="$TARGET_CFLAGS -falign-functions=1" ++ + AC_CACHE_CHECK([whether -falign-loops works], [grub_cv_cc_falign_loop], [ + CFLAGS="$TARGET_CFLAGS -falign-loops=1 -Werror" + AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], +@@ -806,7 +808,18 @@ if test "x$target_cpu" = xi386; then + ]) + + if test "x$grub_cv_cc_falign_loop" = xyes; then +- TARGET_CFLAGS="$TARGET_CFLAGS -falign-jumps=1 -falign-loops=1 -falign-functions=1" ++ TARGET_CFLAGS="$TARGET_CFLAGS -falign-loops=1" ++ fi ++ ++ AC_CACHE_CHECK([whether -falign-jumps works], [grub_cv_cc_falign_jumps], [ ++ CFLAGS="$TARGET_CFLAGS -falign-jumps=1 -Werror" ++ AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], ++ [grub_cv_cc_falign_jumps=yes], ++ [grub_cv_cc_falign_jumps=no]) ++ ]) ++ ++ if test "x$grub_cv_cc_falign_jumps" = xyes; then ++ TARGET_CFLAGS="$TARGET_CFLAGS -falign-jumps=1" + fi + fi + +-- +2.37.3 + |