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Commit f3675644 authored by Al Viro's avatar Al Viro Committed by Michael Ellerman
Browse files

powerpc/syscalls: signal_{32, 64} - switch to SYSCALL_DEFINE 



Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
[mpe: Fix sys_debug_setcontext() prototype to return long]
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
parent 3691d614

arch/powerpc/include/asm/asm-prototypes.h

+4 −10
Original line number Diff line number Diff line
@@ -80,18 +80,12 @@ void machine_check_exception(struct pt_regs *regs); 
void emulation_assist_interrupt(struct pt_regs *regs);



/* signals, syscalls and interrupts */

#ifdef CONFIG_PPC64

int sys_swapcontext(struct ucontext __user *old_ctx,

		    struct ucontext __user *new_ctx,

		    long ctx_size, long r6, long r7, long r8, struct pt_regs *regs);

#else

long sys_swapcontext(struct ucontext __user *old_ctx,

		    struct ucontext __user *new_ctx,

		    int ctx_size, int r6, int r7, int r8, struct pt_regs *regs);

int sys_debug_setcontext(struct ucontext __user *ctx,

			 int ndbg, struct sig_dbg_op __user *dbg,

			 int r6, int r7, int r8,

			 struct pt_regs *regs);

		    long ctx_size);

#ifdef CONFIG_PPC32

long sys_debug_setcontext(struct ucontext __user *ctx,

			  int ndbg, struct sig_dbg_op __user *dbg);

int

ppc_select(int n, fd_set __user *inp, fd_set __user *outp, fd_set __user *exp, struct timeval __user *tvp);

unsigned long __init early_init(unsigned long dt_ptr);

arch/powerpc/kernel/signal.h

+2 −4
Original line number Diff line number Diff line
@@ -49,10 +49,8 @@ extern int handle_rt_signal64(struct ksignal *ksig, sigset_t *set, 


#else /* CONFIG_PPC64 */



extern long sys_rt_sigreturn(int r3, int r4, int r5, int r6, int r7, int r8,

		     struct pt_regs *regs);

extern long sys_sigreturn(int r3, int r4, int r5, int r6, int r7, int r8,

		       struct pt_regs *regs);

extern long sys_rt_sigreturn(void);

extern long sys_sigreturn(void);



static inline int handle_rt_signal64(struct ksignal *ksig, sigset_t *set,

				     struct task_struct *tsk)

arch/powerpc/kernel/signal_32.c

+24 −16
Original line number Diff line number Diff line
@@ -26,8 +26,8 @@ 
#include <linux/elf.h>

#include <linux/ptrace.h>

#include <linux/ratelimit.h>

#ifdef CONFIG_PPC64

#include <linux/syscalls.h>

#ifdef CONFIG_PPC64

#include <linux/compat.h>

#else

#include <linux/wait.h>
@@ -57,10 +57,6 @@ 




#ifdef CONFIG_PPC64

#define sys_rt_sigreturn	compat_sys_rt_sigreturn

#define sys_swapcontext	compat_sys_swapcontext

#define sys_sigreturn	compat_sys_sigreturn



#define old_sigaction	old_sigaction32

#define sigcontext	sigcontext32

#define mcontext	mcontext32
@@ -1041,10 +1037,15 @@ static int do_setcontext_tm(struct ucontext __user *ucp, 
}

#endif



long sys_swapcontext(struct ucontext __user *old_ctx,

		     struct ucontext __user *new_ctx,

		     int ctx_size, int r6, int r7, int r8, struct pt_regs *regs)

#ifdef CONFIG_PPC64

COMPAT_SYSCALL_DEFINE3(swapcontext, struct ucontext __user *, old_ctx,

		       struct ucontext __user *, new_ctx, int, ctx_size)

#else

SYSCALL_DEFINE3(swapcontext, struct ucontext __user *, old_ctx,

		       struct ucontext __user *, new_ctx, long, ctx_size)

#endif

{

	struct pt_regs *regs = current_pt_regs();

	unsigned char tmp __maybe_unused;

	int ctx_has_vsx_region = 0;
@@ -1132,10 +1133,14 @@ long sys_swapcontext(struct ucontext __user *old_ctx, 
	return 0;

}



long sys_rt_sigreturn(int r3, int r4, int r5, int r6, int r7, int r8,

		     struct pt_regs *regs)

#ifdef CONFIG_PPC64

COMPAT_SYSCALL_DEFINE0(rt_sigreturn)

#else

SYSCALL_DEFINE0(rt_sigreturn)

#endif

{

	struct rt_sigframe __user *rt_sf;

	struct pt_regs *regs = current_pt_regs();

#ifdef CONFIG_PPC_TRANSACTIONAL_MEM

	struct ucontext __user *uc_transact;

	unsigned long msr_hi;
@@ -1224,11 +1229,10 @@ long sys_rt_sigreturn(int r3, int r4, int r5, int r6, int r7, int r8, 
}



#ifdef CONFIG_PPC32

int sys_debug_setcontext(struct ucontext __user *ctx,

			 int ndbg, struct sig_dbg_op __user *dbg,

			 int r6, int r7, int r8,

			 struct pt_regs *regs)

SYSCALL_DEFINE3(debug_setcontext, struct ucontext __user *, ctx,

			 int, ndbg, struct sig_dbg_op __user *, dbg)

{

	struct pt_regs *regs = current_pt_regs();

	struct sig_dbg_op op;

	int i;

	unsigned char tmp __maybe_unused;
@@ -1419,9 +1423,13 @@ int handle_signal32(struct ksignal *ksig, sigset_t *oldset, 
/*

 * Do a signal return; undo the signal stack.

 */

long sys_sigreturn(int r3, int r4, int r5, int r6, int r7, int r8,

		       struct pt_regs *regs)

#ifdef CONFIG_PPC64

COMPAT_SYSCALL_DEFINE0(sigreturn)

#else

SYSCALL_DEFINE0(sigreturn)

#endif

{

	struct pt_regs *regs = current_pt_regs();

	struct sigframe __user *sf;

	struct sigcontext __user *sc;

	struct sigcontext sigctx;

arch/powerpc/kernel/signal_64.c

+5 −10
Original line number Diff line number Diff line
@@ -24,6 +24,7 @@ 
#include <linux/elf.h>

#include <linux/ptrace.h>

#include <linux/ratelimit.h>

#include <linux/syscalls.h>



#include <asm/sigcontext.h>

#include <asm/ucontext.h>
@@ -624,17 +625,14 @@ static long setup_trampoline(unsigned int syscall, unsigned int __user *tramp) 
/*

 * Handle {get,set,swap}_context operations

 */

int sys_swapcontext(struct ucontext __user *old_ctx,

		    struct ucontext __user *new_ctx,

		    long ctx_size, long r6, long r7, long r8, struct pt_regs *regs)

SYSCALL_DEFINE3(swapcontext, struct ucontext __user *, old_ctx,

		struct ucontext __user *, new_ctx, long, ctx_size)

{

	unsigned char tmp;

	sigset_t set;

	unsigned long new_msr = 0;

	int ctx_has_vsx_region = 0;



	BUG_ON(regs != current->thread.regs);



	if (new_ctx &&

	    get_user(new_msr, &new_ctx->uc_mcontext.gp_regs[PT_MSR]))

		return -EFAULT;
@@ -698,18 +696,15 @@ int sys_swapcontext(struct ucontext __user *old_ctx, 
 * Do a signal return; undo the signal stack.

 */



int sys_rt_sigreturn(unsigned long r3, unsigned long r4, unsigned long r5,

		     unsigned long r6, unsigned long r7, unsigned long r8,

		     struct pt_regs *regs)

SYSCALL_DEFINE0(rt_sigreturn)

{

	struct pt_regs *regs = current_pt_regs();

	struct ucontext __user *uc = (struct ucontext __user *)regs->gpr[1];

	sigset_t set;

#ifdef CONFIG_PPC_TRANSACTIONAL_MEM

	unsigned long msr;

#endif



	BUG_ON(current->thread.regs != regs);



	/* Always make any pending restarted system calls return -EINTR */

	current->restart_block.fn = do_no_restart_syscall;