Andrew Boie 9731a0cce9 arm: syscalls: fix some register issues ... Upon return from a syscall handlers, the r1, r2, and r3 registers could contain random kernel data that should not be leaked to user mode. Zero these out before returning from _arm_do_syscall(). Fixes #7753. The invocation macros need a clobber if r1, r2, or r3 are not used to carry syscall arguments. This is a partial fix for #7754 but there appear to be other issues. Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>		2018-05-22 15:59:07 -07:00
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cortex_m	arm: mpu: nxp: set bus master 4 to write and read access	2018-05-17 07:00:49 -05:00
arch.h	arm: syscalls: fix some register issues	2018-05-22 15:59:07 -07:00