summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorFeng Tang <feng.tang@intel.com>2022-03-24 02:05:50 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2022-03-24 05:00:33 +0300
commit1bf18da62106225dbc47aab41efee2aeb99caccd (patch)
treecfc4a963b42042854704c412c80fee7116621e5c
parent25cb5b7ac6a7f7943e22a6831b74a6aa964d2a0c (diff)
downloadlinux-1bf18da62106225dbc47aab41efee2aeb99caccd.tar.xz
lib/Kconfig.debug: add ARCH dependency for FUNCTION_ALIGN option
0Day robots reported there is compiling issue for 'csky' ARCH when CONFIG_DEBUG_FORCE_DATA_SECTION_ALIGNED is enabled [1]: All errors (new ones prefixed by >>): {standard input}: Assembler messages: >> {standard input}:2277: Error: pcrel offset for branch to .LS000B too far (0x3c) Which was discussed in [2]. And as there is no solution for csky yet, add some dependency for this config to limit it to several ARCHs which have no compiling issue so far. [1]. https://lore.kernel.org/lkml/202202271612.W32UJAj2-lkp@intel.com/ [2]. https://www.spinics.net/lists/linux-kbuild/msg30298.html Link: https://lkml.kernel.org/r/20220304021100.GN4548@shbuild999.sh.intel.com Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Feng Tang <feng.tang@intel.com> Cc: Guo Ren <guoren@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--lib/Kconfig.debug3
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 6c84ef66ceb8..b84c2462fe8d 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -439,7 +439,8 @@ config SECTION_MISMATCH_WARN_ONLY
If unsure, say Y.
config DEBUG_FORCE_FUNCTION_ALIGN_64B
- bool "Force all function address 64B aligned" if EXPERT
+ bool "Force all function address 64B aligned"
+ depends on EXPERT && (X86_64 || ARM64 || PPC32 || PPC64 || ARC)
help
There are cases that a commit from one domain changes the function
address alignment of other domains, and cause magic performance