BMC/Intel-BMC/linux.git/arch/mips/kernel/uprobes.c, branch dev-4.4

MIPS: uprobes: fix use of uninitialised variable

2016-10-07T13:23:43+00:00

commit ca86c9ef2b322ebf24772009fdea037688cbdac1 upstream. arch_uprobe_pre_xol needs to emulate a branch if a branch instruction has been replaced with a breakpoint, but in fact an uninitialised local variable was passed to the emulator routine instead of the original instruction Signed-off-by: Marcin Nowakowski Fixes: 40e084a506eb ('MIPS: Add uprobes support.') Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/14300/ Signed-off-by: Ralf Baechle Signed-off-by: Greg Kroah-Hartman

MIPS: fix uretprobe implementation

2016-10-07T13:23:42+00:00

commit db06068a4fd44a57b642b369d2a295b8448f6b65 upstream. arch_uretprobe_hijack_return_addr should replace the return address for a call with a trampoline address. Signed-off-by: Marcin Nowakowski Fixes: 40e084a506eb ('MIPS: Add uprobes support.') Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/14298/ Signed-off-by: Ralf Baechle Signed-off-by: Greg Kroah-Hartman

MIPS: uprobes: remove incorrect set_orig_insn

2016-10-07T13:23:42+00:00

commit ddabfa5c2e33f1b495f3e0176de7057850915c0b upstream. Generic kernel code implements a weak version of set_orig_insn that moves cached 'insn' from arch_uprobe to the original code location when the trap is removed. MIPS variant used arch_uprobe->orig_inst which was never initialised properly, so this code only inserted a nop instead of the original instruction. With that change orig_inst can also be safely removed. Signed-off-by: Marcin Nowakowski Fixes: 40e084a506eb ('MIPS: Add uprobes support.') Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/14299/ Signed-off-by: Ralf Baechle Signed-off-by: Greg Kroah-Hartman

MIPS: Add uprobes support.

2015-09-03T10:08:05+00:00

Signed-off-by: Ralf Baechle