Re: [PATCH] arm: uprobes: Don't hook on thumb instructions

Hi Fredrik, On Mon, 18 May 2020, Fredrik Strupe wrote: > Since uprobes is not supported for thumb, check that the thumb bit is > not set when matching the uprobes instruction hooks. > > The Arm UDF instructions used for uprobes triggering > (UPROBE_SWBP_ARM_INSN and UPROBE_SS_ARM_INSN)

[PATCH] arm: uprobes: Don't hook on thumb instructions

Since uprobes is not supported for thumb, check that the thumb bit is not set when matching the uprobes instruction hooks. The Arm UDF instructions used for uprobes triggering (UPROBE_SWBP_ARM_INSN and UPROBE_SS_ARM_INSN) coincidentally share the same encoding as a pair of unallocated 32-bit