diff options
| author | Anders Roxell <anders.roxell@linaro.org> | 2018-03-26 14:54:25 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@armlinux.org.uk> | 2018-05-19 11:53:46 +0100 |
| commit | e7229f7db9397ea44f142c4f6b72627a0fbd079b (patch) | |
| tree | a51b0e76c099d7b79291c0ca4dd60a44cf02f74f /arch/arm/Kconfig | |
| parent | 60cc43fc888428bb2f18f08997432d426a243338 (diff) | |
ARM: 8752/1: Kconfig: default ARM_MODULE_PLTS to 'y'
While testing multi_v7_defconfig with config fragments that makes the
kernel size to grow. The kernel fails to load simple modules, as
reported by kselftest:
[ 34.107620] test_printf: section 4 reloc 2 sym 'memset': relocation
28 out of range (0xbf046044 -> 0xc109f720)
selftests: printf.sh [FAIL]
The problem that is seen when enabling too much in the kernel without
enabling ARM_MODULE_PLTS, is that the top of the kernel gets out of
reach from the bottom of the module area.
Suggested-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Anders Roxell <anders.roxell@linaro.org>
Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Diffstat (limited to 'arch/arm/Kconfig')
| -rw-r--r-- | arch/arm/Kconfig | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index a7f8e7f4b88f..55a609e9f797 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -1704,6 +1704,7 @@ config ARCH_WANT_GENERAL_HUGETLB config ARM_MODULE_PLTS bool "Use PLTs to allow module memory to spill over into vmalloc area" depends on MODULES + default y help Allocate PLTs when loading modules so that jumps and calls whose targets are too far away for their relative offsets to be encoded @@ -1714,7 +1715,8 @@ config ARM_MODULE_PLTS rounding up to page size, the actual memory footprint is usually the same. - Say y if you are getting out of memory errors while loading modules + Disabling this is usually safe for small single-platform + configurations. If unsure, say y. source "mm/Kconfig" |