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| author | Feng Tang <feng.tang@intel.com> | 2022-03-24 02:05:50 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2022-03-24 05:00:33 +0300 |
| commit | 1bf18da62106225dbc47aab41efee2aeb99caccd (patch) | |
| tree | cfc4a963b42042854704c412c80fee7116621e5c | |
| parent | 25cb5b7ac6a7f7943e22a6831b74a6aa964d2a0c (diff) | |
| download | linux-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.debug | 3 |
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 |