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Commit 15002fa9 authored by Hiroshi Shimamoto's avatar Hiroshi Shimamoto Committed by Ingo Molnar
Browse files

x86: signal: cosmetic unification of setup_sigcontext() 



Impact: cleanup

Make setup_sigcontext() same.

Signed-off-by: default avatarHiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
parent 8735b7d0

arch/x86/kernel/signal_32.c

+28 −4
Original line number Diff line number Diff line
@@ -279,14 +279,20 @@ static int 
setup_sigcontext(struct sigcontext __user *sc, void __user *fpstate,

		 struct pt_regs *regs, unsigned long mask)

{

	int tmp, err = 0;

	int err = 0;



#ifdef CONFIG_X86_32

	{

		unsigned int tmp;



	err |= __put_user(regs->fs, (unsigned int __user *)&sc->fs);

		savesegment(gs, tmp);

		err |= __put_user(tmp, (unsigned int __user *)&sc->gs);



	}

	err |= __put_user(regs->fs, (unsigned int __user *)&sc->fs);

	err |= __put_user(regs->es, (unsigned int __user *)&sc->es);

	err |= __put_user(regs->ds, (unsigned int __user *)&sc->ds);

#endif /* CONFIG_X86_32 */



	err |= __put_user(regs->di, &sc->di);

	err |= __put_user(regs->si, &sc->si);

	err |= __put_user(regs->bp, &sc->bp);
@@ -295,13 +301,31 @@ setup_sigcontext(struct sigcontext __user *sc, void __user *fpstate, 
	err |= __put_user(regs->dx, &sc->dx);

	err |= __put_user(regs->cx, &sc->cx);

	err |= __put_user(regs->ax, &sc->ax);

#ifdef CONFIG_X86_64

	err |= __put_user(regs->r8, &sc->r8);

	err |= __put_user(regs->r9, &sc->r9);

	err |= __put_user(regs->r10, &sc->r10);

	err |= __put_user(regs->r11, &sc->r11);

	err |= __put_user(regs->r12, &sc->r12);

	err |= __put_user(regs->r13, &sc->r13);

	err |= __put_user(regs->r14, &sc->r14);

	err |= __put_user(regs->r15, &sc->r15);

#endif /* CONFIG_X86_64 */



	err |= __put_user(current->thread.trap_no, &sc->trapno);

	err |= __put_user(current->thread.error_code, &sc->err);

	err |= __put_user(regs->ip, &sc->ip);

#ifdef CONFIG_X86_32

	err |= __put_user(regs->cs, (unsigned int __user *)&sc->cs);

	err |= __put_user(regs->flags, &sc->flags);

	err |= __put_user(regs->sp, &sc->sp_at_signal);

	err |= __put_user(regs->ss, (unsigned int __user *)&sc->ss);

#else /* !CONFIG_X86_32 */

	err |= __put_user(regs->flags, &sc->flags);

	err |= __put_user(regs->cs, &sc->cs);

	err |= __put_user(0, &sc->gs);

	err |= __put_user(0, &sc->fs);

#endif /* CONFIG_X86_32 */



	err |= __put_user(fpstate, &sc->fpstate);

arch/x86/kernel/signal_64.c

+28 −5
Original line number Diff line number Diff line
@@ -157,16 +157,23 @@ asmlinkage long sys_rt_sigreturn(struct pt_regs *regs) 
/*

 * Set up a signal frame.

 */



static inline int

static int

setup_sigcontext(struct sigcontext __user *sc, void __user *fpstate,

		 struct pt_regs *regs, unsigned long mask)

{

	int err = 0;



	err |= __put_user(regs->cs, &sc->cs);

	err |= __put_user(0, &sc->gs);

	err |= __put_user(0, &sc->fs);

#ifdef CONFIG_X86_32

	{

		unsigned int tmp;



		savesegment(gs, tmp);

		err |= __put_user(tmp, (unsigned int __user *)&sc->gs);

	}

	err |= __put_user(regs->fs, (unsigned int __user *)&sc->fs);

	err |= __put_user(regs->es, (unsigned int __user *)&sc->es);

	err |= __put_user(regs->ds, (unsigned int __user *)&sc->ds);

#endif /* CONFIG_X86_32 */



	err |= __put_user(regs->di, &sc->di);

	err |= __put_user(regs->si, &sc->si);
@@ -176,6 +183,7 @@ setup_sigcontext(struct sigcontext __user *sc, void __user *fpstate, 
	err |= __put_user(regs->dx, &sc->dx);

	err |= __put_user(regs->cx, &sc->cx);

	err |= __put_user(regs->ax, &sc->ax);

#ifdef CONFIG_X86_64

	err |= __put_user(regs->r8, &sc->r8);

	err |= __put_user(regs->r9, &sc->r9);

	err |= __put_user(regs->r10, &sc->r10);
@@ -184,11 +192,26 @@ setup_sigcontext(struct sigcontext __user *sc, void __user *fpstate, 
	err |= __put_user(regs->r13, &sc->r13);

	err |= __put_user(regs->r14, &sc->r14);

	err |= __put_user(regs->r15, &sc->r15);

#endif /* CONFIG_X86_64 */



	err |= __put_user(current->thread.trap_no, &sc->trapno);

	err |= __put_user(current->thread.error_code, &sc->err);

	err |= __put_user(regs->ip, &sc->ip);

#ifdef CONFIG_X86_32

	err |= __put_user(regs->cs, (unsigned int __user *)&sc->cs);

	err |= __put_user(regs->flags, &sc->flags);

	err |= __put_user(regs->sp, &sc->sp_at_signal);

	err |= __put_user(regs->ss, (unsigned int __user *)&sc->ss);

#else /* !CONFIG_X86_32 */

	err |= __put_user(regs->flags, &sc->flags);

	err |= __put_user(regs->cs, &sc->cs);

	err |= __put_user(0, &sc->gs);

	err |= __put_user(0, &sc->fs);

#endif /* CONFIG_X86_32 */



	err |= __put_user(fpstate, &sc->fpstate);



	/* non-iBCS2 extensions.. */

	err |= __put_user(mask, &sc->oldmask);

	err |= __put_user(current->thread.cr2, &sc->cr2);