]> git.proxmox.com Git - mirror_ubuntu-eoan-kernel.git/commit
avr32: use generic ptrace_resume code
authorChristoph Hellwig <hch@lst.de>
Wed, 10 Mar 2010 23:22:51 +0000 (15:22 -0800)
committerLinus Torvalds <torvalds@linux-foundation.org>
Fri, 12 Mar 2010 23:52:38 +0000 (15:52 -0800)
commit1d8393171b1f6c30a889fd7cb16fc193f689923c
treef151b10950918700085bb7b4d4d905d54e7826f2
parent440e6ca79aebdc274ce4c625a6f42c8bf3c7bc91
avr32: use generic ptrace_resume code

Use the generic ptrace_resume code for PTRACE_SYSCALL, PTRACE_CONT,
PTRACE_KILL and PTRACE_SINGLESTEP.  This implies defining
arch_has_single_step in <asm/ptrace.h> and implementing the
user_enable_single_step and user_disable_single_step functions, which also
causes the breakpoint information to be cleared on fork, which could be
considered a bug fix.

Also the TIF_SYSCALL_TRACE thread flag is now cleared on PTRACE_KILL which
it previously wasn't which is consistent with all architectures using the
modern ptrace code.

Currently avr32 doesn't implement any code to disable single stepping when
one of the non-syscall requests is called which seems wrong, but I've left
it as-is for now.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Roland McGrath <roland@redhat.com>
Acked-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
arch/avr32/include/asm/ptrace.h
arch/avr32/kernel/ptrace.c