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[PATCH] configure: Check -falign-jumps=1 -falign-functions=1 beside -fal
From: |
Fangrui Song |
Subject: |
[PATCH] configure: Check -falign-jumps=1 -falign-functions=1 beside -falign-loops=1 |
Date: |
Mon, 16 Aug 2021 12:06:25 -0700 |
Clang 14.0.0 has implemented -falign-loops=1 but -falign-jumps=1 is
still unsupported. The check should test all flags which may be added
into CFLAGS.
Signed-off-by: Fangrui Song <maskray@google.com>
---
configure.ac | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/configure.ac b/configure.ac
index bee28dbeb..b2fd0c3e4 100644
--- a/configure.ac
+++ b/configure.ac
@@ -799,14 +799,14 @@ fi
# Force no alignment to save space on i386.
if test "x$target_cpu" = xi386; then
AC_CACHE_CHECK([whether -falign-loops works], [grub_cv_cc_falign_loop], [
- CFLAGS="$TARGET_CFLAGS -falign-loops=1 -Werror"
+ CFLAGS="$TARGET_CFLAGS -falign-jumps=1 -falign-loops=1 -falign-functions=1
-Werror"
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
[grub_cv_cc_falign_loop=yes],
[grub_cv_cc_falign_loop=no])
])
AC_CACHE_CHECK([whether -malign-loops works], [grub_cv_cc_malign_loop], [
- CFLAGS="$TARGET_CFLAGS -malign-loops=1 -Werror"
+ CFLAGS="$TARGET_CFLAGS -malign-jumps=1 -malign-loops=1 -malign-functions=1
-Werror"
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
[grub_cv_cc_malign_loop=yes],
[grub_cv_cc_malign_loop=no])
--
2.33.0.rc1.237.g0d66db33f3-goog
- [PATCH] configure: Check -falign-jumps=1 -falign-functions=1 beside -falign-loops=1,
Fangrui Song <=