• Paul Burton's avatar
    MIPS: Require O32 FP64 support for MIPS64 with O32 compat · 4e9d324d
    Paul Burton authored
    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: default avatarPaul 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: default avatarRalf Baechle <ralf@linux-mips.org>
    4e9d324d
Kconfig 72.3 KB