Commit 70578ff3 authored by Eric W. Biederman's avatar Eric W. Biederman Committed by Kees Cook
Browse files

binfmt_flat: Remove shared library support 

In a recent discussion[1] it was reported that the binfmt_flat library
support was only ever used on m68k and even on m68k has not been used
in a very long time.

The structure of binfmt_flat is different from all of the other binfmt
implementations because of this shared library support and it made
life and code review more effort when I refactored the code in fs/exec.c.

Since in practice the code is dead remove the binfmt_flat shared library
support and make maintenance of the code easier.

[1] https://lkml.kernel.org/r/81788b56-5b15-7308-38c7-c7f2502c4e15@linux-m68k.org



Signed-off-by: default avatar"Eric W. Biederman" <ebiederm@xmission.com>
Reviewed-by: default avatarDamien Le Moal <damien.lemoal@opensource.wdc.com>
Acked-by: Vladimir Murzin <vladimir.murzin@arm.com> # ARM
Tested-by: default avatarPatrice Chotard <patrice.chotard@foss.st.com>
Signed-off-by: default avatarKees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/87levzzts4.fsf_-_@email.froward.int.ebiederm.org
parent 8d005269

arch/arm/configs/lpc18xx_defconfig

+0 −1
Original line number Diff line number Diff line
@@ -30,7 +30,6 @@ CONFIG_ARM_APPENDED_DTB=y 
# CONFIG_BLK_DEV_BSG is not set

CONFIG_BINFMT_FLAT=y

CONFIG_BINFMT_ZFLAT=y

CONFIG_BINFMT_SHARED_FLAT=y

# CONFIG_COREDUMP is not set

CONFIG_NET=y

CONFIG_PACKET=y

arch/arm/configs/mps2_defconfig

+0 −1
Original line number Diff line number Diff line
@@ -23,7 +23,6 @@ CONFIG_PREEMPT_VOLUNTARY=y 
CONFIG_ZBOOT_ROM_TEXT=0x0

CONFIG_ZBOOT_ROM_BSS=0x0

CONFIG_BINFMT_FLAT=y

CONFIG_BINFMT_SHARED_FLAT=y

# CONFIG_COREDUMP is not set

# CONFIG_SUSPEND is not set

CONFIG_NET=y

arch/arm/configs/stm32_defconfig

+0 −1
Original line number Diff line number Diff line
@@ -28,7 +28,6 @@ CONFIG_ZBOOT_ROM_BSS=0x0 
CONFIG_XIP_KERNEL=y

CONFIG_XIP_PHYS_ADDR=0x08008000

CONFIG_BINFMT_FLAT=y

CONFIG_BINFMT_SHARED_FLAT=y

# CONFIG_COREDUMP is not set

CONFIG_DEVTMPFS=y

CONFIG_DEVTMPFS_MOUNT=y

arch/arm/configs/vf610m4_defconfig

+0 −1
Original line number Diff line number Diff line
@@ -18,7 +18,6 @@ CONFIG_XIP_KERNEL=y 
CONFIG_XIP_PHYS_ADDR=0x0f000080

CONFIG_BINFMT_FLAT=y

CONFIG_BINFMT_ZFLAT=y

CONFIG_BINFMT_SHARED_FLAT=y

# CONFIG_SUSPEND is not set

# CONFIG_UEVENT_HELPER is not set

# CONFIG_STANDALONE is not set

arch/sh/configs/rsk7201_defconfig

+0 −1
Original line number Diff line number Diff line
@@ -25,7 +25,6 @@ CONFIG_CMDLINE_OVERWRITE=y 
CONFIG_CMDLINE="console=ttySC0,115200 earlyprintk=serial ignore_loglevel"

CONFIG_BINFMT_FLAT=y

CONFIG_BINFMT_ZFLAT=y

CONFIG_BINFMT_SHARED_FLAT=y

CONFIG_PM=y

CONFIG_CPU_IDLE=y

# CONFIG_STANDALONE is not set