diff options
| author | Arnd Bergmann <arnd@arndb.de> | 2021-10-18 17:30:06 +0300 |
|---|---|---|
| committer | Russell King (Oracle) <rmk+kernel@armlinux.org.uk> | 2021-10-25 15:12:33 +0300 |
| commit | 345dac33f58894a56d17b92a41be10e16585ceff (patch) | |
| tree | f11f54766e27fffc3054aefdf4c08e9cd77e9d1d /arch/arm | |
| parent | 3583ab228a30b7c3fc8dd76ae45af7e25436b587 (diff) | |
| download | linux-345dac33f58894a56d17b92a41be10e16585ceff.tar.xz | |
ARM: 9136/1: ARMv7-M uses BE-8, not BE-32
When configuring the kernel for big-endian, we set either BE-8 or BE-32
based on the CPU architecture level. Until linux-4.4, we did not have
any ARMv7-M platform allowing big-endian builds, but now i.MX/Vybrid
is in that category, adn we get a build error because of this:
arch/arm/kernel/module-plts.c: In function 'get_module_plt':
arch/arm/kernel/module-plts.c:60:46: error: implicit declaration of function '__opcode_to_mem_thumb32' [-Werror=implicit-function-declaration]
This comes down to picking the wrong default, ARMv7-M uses BE8
like ARMv7-A does. Changing the default gets the kernel to compile
and presumably works.
https://lore.kernel.org/all/1455804123-2526139-2-git-send-email-arnd@arndb.de/
Tested-by: Vladimir Murzin <vladimir.murzin@arm.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/mm/Kconfig | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig index 8355c3895894..82aa990c4180 100644 --- a/arch/arm/mm/Kconfig +++ b/arch/arm/mm/Kconfig @@ -750,7 +750,7 @@ config CPU_BIG_ENDIAN config CPU_ENDIAN_BE8 bool depends on CPU_BIG_ENDIAN - default CPU_V6 || CPU_V6K || CPU_V7 + default CPU_V6 || CPU_V6K || CPU_V7 || CPU_V7M help Support for the BE-8 (big-endian) mode on ARMv6 and ARMv7 processors. |