From: Feng Tang feng.tang@intel.com
[ Upstream commit 1bf18da62106225dbc47aab41efee2aeb99caccd ]
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 Signed-off-by: Sasha Levin sashal@kernel.org --- lib/Kconfig.debug | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 2a9b6dcdac4f..55e89b237b6f 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -414,7 +414,8 @@ 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