Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 8bed51cd authored by Chuck Ebbert's avatar Chuck Ebbert Committed by Linus Torvalds
Browse files

[PATCH] i386: let signal handlers set the resume flag 



Allow signal handlers to set the RF bit in EFLAGS.  This lets a simple
debugger using SIGTRAP skip one instruction after returning from a signal.

Signed-off-by: default avatarChuck Ebbert <76306.1226@compuserve.com>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 3c36c6aa

arch/i386/kernel/signal.c

+2 −1
Original line number Original line Diff line number Diff line
@@ -123,7 +123,8 @@ restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc, int *peax 
	  err |= __get_user(tmp, &sc->seg);				\

	  err |= __get_user(tmp, &sc->seg);				\

	  loadsegment(seg,tmp); }

	  loadsegment(seg,tmp); }





#define	FIX_EFLAGS	(X86_EFLAGS_AC | X86_EFLAGS_OF | X86_EFLAGS_DF | \

#define	FIX_EFLAGS	(X86_EFLAGS_AC | X86_EFLAGS_RF |		 \

			 X86_EFLAGS_OF | X86_EFLAGS_DF |		 \

			 X86_EFLAGS_TF | X86_EFLAGS_SF | X86_EFLAGS_ZF | \

			 X86_EFLAGS_TF | X86_EFLAGS_SF | X86_EFLAGS_ZF | \

			 X86_EFLAGS_AF | X86_EFLAGS_PF | X86_EFLAGS_CF)

			 X86_EFLAGS_AF | X86_EFLAGS_PF | X86_EFLAGS_CF)