From 1bd095083558928cc3b36b826422d69bcd743dca Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Wed, 10 Mar 2010 15:22:56 -0800 Subject: um: 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 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. XXX: I'm not sure arch_has_single_step() is placed in the exactly correct location, please verify in which of the ptrace headers it should really be. Signed-off-by: Christoph Hellwig Cc: Oleg Nesterov Cc: Roland McGrath Cc: Jeff Dike Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/um/include/asm/ptrace-generic.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'arch/um/include') diff --git a/arch/um/include/asm/ptrace-generic.h b/arch/um/include/asm/ptrace-generic.h index 6c8899013c92..2cd899f75a3c 100644 --- a/arch/um/include/asm/ptrace-generic.h +++ b/arch/um/include/asm/ptrace-generic.h @@ -16,6 +16,8 @@ struct pt_regs { struct uml_pt_regs regs; }; +#define arch_has_single_step() (1) + #define EMPTY_REGS { .regs = EMPTY_UML_PT_REGS } #define PT_REGS_IP(r) UPT_IP(&(r)->regs) -- cgit v1.2.1