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| author |   Paul Burton <paul.burton@imgtec.com> | 2015-07-10 16:00:24 +0100 |
|---|---|---|
| committer |   Ralf Baechle <ralf@linux-mips.org> | 2015-07-14 16:40:19 +0200 |
| commit | 4e9d324d4288b082497c30bc55b8ad13acc7cf01 (patch) | |
| tree | 4325753bfb2377dc7402820592efd93ccb83d2af /arch | |
| parent | MIPS: asm-offset.c: Patch up various comments refering to the old filename. (diff) | |
| download | linux-dev-4e9d324d4288b082497c30bc55b8ad13acc7cf01.tar.xz linux-dev-4e9d324d4288b082497c30bc55b8ad13acc7cf01.zip | |
MIPS: Require O32 FP64 support for MIPS64 with O32 compat
MIPS32r6 code requires FP64 (ie. FR=1) support. Building a kernel with
support for MIPS32r6 binaries but without support for O32 with FP64 is
therefore a problem which can lead to incorrectly executed userland.
CONFIG_MIPS_O32_FP64_SUPPORT is already selected when the kernel is
configured for MIPS32r6, but not when the kernel is configured for
MIPS64r6 with O32 compat support. Select CONFIG_MIPS_O32_FP64_SUPPORT in
such configurations to prevent building kernels which execute MIPS32r6
userland incorrectly.
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: Markos Chandras <markos.chandras@imgtec.com>
Cc: <stable@vger.kernel.org> # v4.0-
Cc: linux-mips@linux-mips.org
Cc: Matthew Fortune <matthew.fortune@imgtec.com>
Cc: stable@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/10674/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/mips/Kconfig | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig index aab7e46cadd5..66dc359277e3 100644 --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig @@ -1427,6 +1427,7 @@ config CPU_MIPS64_R6 select CPU_SUPPORTS_HIGHMEM select CPU_SUPPORTS_MSA select GENERIC_CSUM + select MIPS_O32_FP64_SUPPORT if MIPS32_O32 help Choose this option to build a kernel for release 6 or later of the MIPS64 architecture. New MIPS processors, starting with the Warrior |