Commit e7229f7d authored by Anders Roxell's avatar Anders Roxell Committed by Russell King
Browse files

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: default avatarArnd Bergmann <arnd@arndb.de>
Signed-off-by: default avatarAnders Roxell <anders.roxell@linaro.org>
Acked-by: default avatarArd Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: default avatarRussell King <rmk+kernel@armlinux.org.uk>
parent 60cc43fc
......@@ -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"
......
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