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| author |   Ard Biesheuvel <ardb@kernel.org> | 2022-01-24 19:16:58 +0100 |
|---|---|---|
| committer | Ard Biesheuvel <ardb@kernel.org> | 2022-01-24 21:02:34 +0100 |
| commit | d6905849f87596f94c2778c8337697df486de43c (patch) | |
| tree | d2a8e56084960b8cb369792e25b21b3eb7d4bd9f /arch/arm/Kconfig | |
| parent | ARM: mm: switch to swapper_pg_dir early for vmap'ed stack (diff) | |
| download | linux-dev-d6905849f87596f94c2778c8337697df486de43c.tar.xz linux-dev-d6905849f87596f94c2778c8337697df486de43c.zip | |
ARM: assembler: define a Kconfig symbol for group relocation support
Nathan reports the group relocations go out of range in pathological
cases such as allyesconfig kernels, which have little chance of actually
booting but are still used in validation.
So add a Kconfig symbol for this feature, and make it depend on
!COMPILE_TEST.
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Diffstat (limited to 'arch/arm/Kconfig')
| -rw-r--r-- | arch/arm/Kconfig | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 359a3b85c8b3..70ab8d807032 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -128,7 +128,7 @@ config ARM select RTC_LIB select SYS_SUPPORTS_APM_EMULATION select THREAD_INFO_IN_TASK - select HAVE_ARCH_VMAP_STACK if MMU && (!LD_IS_LLD || LLD_VERSION >= 140000) + select HAVE_ARCH_VMAP_STACK if MMU && ARM_HAS_GROUP_RELOCS select TRACE_IRQFLAGS_SUPPORT if !CPU_V7M # Above selects are sorted alphabetically; please add new ones # according to that. Thanks. @@ -140,6 +140,17 @@ config ARM Europe. There is an ARM Linux project with a web page at <http://www.arm.linux.org.uk/>. +config ARM_HAS_GROUP_RELOCS + def_bool y + depends on !LD_IS_LLD || LLD_VERSION >= 140000 + depends on !COMPILE_TEST + help + Whether or not to use R_ARM_ALU_PC_Gn or R_ARM_LDR_PC_Gn group + relocations, which have been around for a long time, but were not + supported in LLD until version 14. The combined range is -/+ 256 MiB, + which is usually sufficient, but not for allyesconfig, so we disable + this feature when doing compile testing. + config ARM_HAS_SG_CHAIN bool |