Commit 8844a509 authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge branch 'misc.sparc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 

Pull sparc syscall cleanups from Al Viro:
 "sparc syscall stuff - killing pointless wrappers, conversions to
  {COMPAT_,}SYSCALL_DEFINE"

* 'misc.sparc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  sparc: get rid of asm wrapper for nis_syscall()
  sparc: switch compat {f,}truncate64() to COMPAT_SYSCALL_DEFINE
  sparc: switch compat pread64 and pwrite64 to COMPAT_SYSCALL_DEFINE
  convert compat sync_file_range() to COMPAT_SYSCALL_DEFINE
  switch sparc_remap_file_pages() to SYSCALL_DEFINE
  sparc: get rid of memory_ordering(2) wrapper
  sparc: trivial conversions to {COMPAT_,}SYSCALL_DEFINE()
  sparc: bury a zombie extern that had been that way for twenty years
  sparc: get rid of remaining SIGN... wrappers
  sparc: kill useless SIGN... wrappers
  sparc: get rid of sys_sparc_pipe() wrappers
parents 90fda63f 47db6975

arch/sparc/kernel/entry.S

+0 −15
Original line number Diff line number Diff line
@@ -801,26 +801,11 @@ SUN_PI_(lda [%l4] ASI_M_MMUREGS, %l5) ! read sfsr last 
	RESTORE_ALL



	.align	4

	.globl	sys_nis_syscall

sys_nis_syscall:

	mov	%o7, %l5

	add	%sp, STACKFRAME_SZ, %o0		! pt_regs *regs arg

	call	c_sys_nis_syscall

	 mov	%l5, %o7



sunos_execv:

	.globl	sunos_execv

	b	sys_execve

	 clr	%i2



	.align	4

	.globl	sys_sparc_pipe

sys_sparc_pipe:

	mov	%o7, %l5

	add	%sp, STACKFRAME_SZ, %o0		! pt_regs *regs arg

	call	sparc_pipe

	 mov	%l5, %o7



	.align	4

	.globl	sys_sigstack

sys_sigstack:

arch/sparc/kernel/sys32.S

+0 −38
Original line number Diff line number Diff line
@@ -13,44 +13,6 @@ 


	.text



#define SIGN1(STUB,SYSCALL,REG1) \

	.align	32; \

	.globl	STUB; \

STUB:	sethi	%hi(SYSCALL), %g1; \

	jmpl	%g1 + %lo(SYSCALL), %g0; \

	sra	REG1, 0, REG1



#define SIGN2(STUB,SYSCALL,REG1,REG2) \

	.align	32; \

	.globl	STUB; \

STUB:	sethi	%hi(SYSCALL), %g1; \

	sra	REG1, 0, REG1; \

	jmpl	%g1 + %lo(SYSCALL), %g0; \

	sra	REG2, 0, REG2



#define SIGN3(STUB,SYSCALL,REG1,REG2,REG3) \

	.align	32; \

	.globl	STUB; \

STUB:	sra	REG1, 0, REG1; \

	sethi	%hi(SYSCALL), %g1; \

	sra	REG2, 0, REG2; \

	jmpl	%g1 + %lo(SYSCALL), %g0; \

	sra	REG3, 0, REG3



SIGN1(sys32_readahead, compat_sys_readahead, %o0)

SIGN2(sys32_fadvise64, compat_sys_fadvise64, %o0, %o4)

SIGN2(sys32_fadvise64_64, compat_sys_fadvise64_64, %o0, %o5)

SIGN1(sys32_clock_nanosleep, compat_sys_clock_nanosleep, %o1)

SIGN1(sys32_timer_settime, compat_sys_timer_settime, %o1)

SIGN1(sys32_io_submit, compat_sys_io_submit, %o1)

SIGN1(sys32_mq_open, compat_sys_mq_open, %o1)

SIGN1(sys32_select, compat_sys_select, %o0)

SIGN1(sys32_futex, compat_sys_futex, %o1)

SIGN1(sys32_recvfrom, compat_sys_recvfrom, %o0)

SIGN1(sys32_recvmsg, compat_sys_recvmsg, %o0)

SIGN1(sys32_sendmsg, compat_sys_sendmsg, %o0)

SIGN2(sys32_renameat2, sys_renameat2, %o0, %o2)



	.globl		sys32_mmap2

sys32_mmap2:

	sethi		%hi(sys_mmap), %g1

arch/sparc/kernel/sys_sparc32.c

+36 −53
Original line number Diff line number Diff line
@@ -52,20 +52,14 @@ 


#include "systbls.h"



asmlinkage long sys32_truncate64(const char __user * path, unsigned long high, unsigned long low)

COMPAT_SYSCALL_DEFINE3(truncate64, const char __user *, path, u32, high, u32, low)

{

	if ((int)high < 0)

		return -EINVAL;

	else

		return ksys_truncate(path, (high << 32) | low);

	return ksys_truncate(path, ((u64)high << 32) | low);

}



asmlinkage long sys32_ftruncate64(unsigned int fd, unsigned long high, unsigned long low)

COMPAT_SYSCALL_DEFINE3(ftruncate64, unsigned int, fd, u32, high, u32, low)

{

	if ((int)high < 0)

		return -EINVAL;

	else

		return ksys_ftruncate(fd, (high << 32) | low);

	return ksys_ftruncate(fd, ((u64)high << 32) | low);

}



static int cp_compat_stat64(struct kstat *stat,
@@ -98,8 +92,8 @@ static int cp_compat_stat64(struct kstat *stat, 
	return err;

}



asmlinkage long compat_sys_stat64(const char __user * filename,

		struct compat_stat64 __user *statbuf)

COMPAT_SYSCALL_DEFINE2(stat64, const char __user *, filename,

		struct compat_stat64 __user *, statbuf)

{

	struct kstat stat;

	int error = vfs_stat(filename, &stat);
@@ -109,8 +103,8 @@ asmlinkage long compat_sys_stat64(const char __user * filename, 
	return error;

}



asmlinkage long compat_sys_lstat64(const char __user * filename,

		struct compat_stat64 __user *statbuf)

COMPAT_SYSCALL_DEFINE2(lstat64, const char __user *, filename,

		struct compat_stat64 __user *, statbuf)

{

	struct kstat stat;

	int error = vfs_lstat(filename, &stat);
@@ -120,8 +114,8 @@ asmlinkage long compat_sys_lstat64(const char __user * filename, 
	return error;

}



asmlinkage long compat_sys_fstat64(unsigned int fd,

		struct compat_stat64 __user * statbuf)

COMPAT_SYSCALL_DEFINE2(fstat64, unsigned int, fd,

		struct compat_stat64 __user *, statbuf)

{

	struct kstat stat;

	int error = vfs_fstat(fd, &stat);
@@ -131,9 +125,9 @@ asmlinkage long compat_sys_fstat64(unsigned int fd, 
	return error;

}



asmlinkage long compat_sys_fstatat64(unsigned int dfd,

		const char __user *filename,

		struct compat_stat64 __user * statbuf, int flag)

COMPAT_SYSCALL_DEFINE4(fstatat64, unsigned int, dfd,

		const char __user *, filename,

		struct compat_stat64 __user *, statbuf, int, flag)

{

	struct kstat stat;

	int error;
@@ -194,61 +188,50 @@ COMPAT_SYSCALL_DEFINE5(rt_sigaction, int, sig, 
        return ret;

}



asmlinkage compat_ssize_t sys32_pread64(unsigned int fd,

					char __user *ubuf,

					compat_size_t count,

					unsigned long poshi,

					unsigned long poslo)

COMPAT_SYSCALL_DEFINE5(pread64, unsigned int, fd, char __user *, ubuf,

			compat_size_t, count, u32, poshi, u32, poslo)

{

	return ksys_pread64(fd, ubuf, count, (poshi << 32) | poslo);

	return ksys_pread64(fd, ubuf, count, ((u64)poshi << 32) | poslo);

}



asmlinkage compat_ssize_t sys32_pwrite64(unsigned int fd,

					 char __user *ubuf,

					 compat_size_t count,

					 unsigned long poshi,

					 unsigned long poslo)

COMPAT_SYSCALL_DEFINE5(pwrite64, unsigned int, fd, char __user *, ubuf,

			compat_size_t, count, u32, poshi, u32, poslo)

{

	return ksys_pwrite64(fd, ubuf, count, (poshi << 32) | poslo);

	return ksys_pwrite64(fd, ubuf, count, ((u64)poshi << 32) | poslo);

}



asmlinkage long compat_sys_readahead(int fd,

				     unsigned long offhi,

				     unsigned long offlo,

				     compat_size_t count)

COMPAT_SYSCALL_DEFINE4(readahead, int, fd, u32, offhi, u32, offlo,

		     compat_size_t, count)

{

	return ksys_readahead(fd, (offhi << 32) | offlo, count);

	return ksys_readahead(fd, ((u64)offhi << 32) | offlo, count);

}



long compat_sys_fadvise64(int fd,

			  unsigned long offhi,

			  unsigned long offlo,

			  compat_size_t len, int advice)

COMPAT_SYSCALL_DEFINE5(fadvise64, int, fd, u32, offhi, u32, offlo,

			  compat_size_t, len, int, advice)

{

	return ksys_fadvise64_64(fd, (offhi << 32) | offlo, len, advice);

	return ksys_fadvise64_64(fd, ((u64)offhi << 32) | offlo, len, advice);

}



long compat_sys_fadvise64_64(int fd,

			     unsigned long offhi, unsigned long offlo,

			     unsigned long lenhi, unsigned long lenlo,

			     int advice)

COMPAT_SYSCALL_DEFINE6(fadvise64_64, int, fd, u32, offhi, u32, offlo,

			     u32, lenhi, u32, lenlo, int, advice)

{

	return ksys_fadvise64_64(fd,

				 (offhi << 32) | offlo,

				 (lenhi << 32) | lenlo,

				 ((u64)offhi << 32) | offlo,

				 ((u64)lenhi << 32) | lenlo,

				 advice);

}



long sys32_sync_file_range(unsigned int fd, unsigned long off_high, unsigned long off_low, unsigned long nb_high, unsigned long nb_low, unsigned int flags)

COMPAT_SYSCALL_DEFINE6(sync_file_range, unsigned int, fd, u32, off_high, u32, off_low,

			u32, nb_high, u32, nb_low, unsigned int, flags)

{

	return ksys_sync_file_range(fd,

				   (off_high << 32) | off_low,

				   (nb_high << 32) | nb_low,

				    ((u64)off_high << 32) | off_low,

				    ((u64)nb_high << 32) | nb_low,

				    flags);

}



asmlinkage long compat_sys_fallocate(int fd, int mode, u32 offhi, u32 offlo,

				     u32 lenhi, u32 lenlo)

COMPAT_SYSCALL_DEFINE6(fallocate, int, fd, int, mode, u32, offhi, u32, offlo,

				     u32, lenhi, u32, lenlo)

{

	return ksys_fallocate(fd, mode, ((loff_t)offhi << 32) | offlo,

			      ((loff_t)lenhi << 32) | lenlo);

arch/sparc/kernel/sys_sparc_32.c

+15 −16
Original line number Diff line number Diff line
@@ -34,7 +34,7 @@ 
/* XXX Make this per-binary type, this way we can detect the type of

 * XXX a binary.  Every Sparc executable calls this very early on.

 */

asmlinkage unsigned long sys_getpagesize(void)

SYSCALL_DEFINE0(getpagesize)

{

	return PAGE_SIZE; /* Possibly older binaries want 8192 on sun4's? */

}
@@ -73,7 +73,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi 
 * sys_pipe() is the normal C calling standard for creating

 * a pipe. It's not the way unix traditionally does this, though.

 */

asmlinkage long sparc_pipe(struct pt_regs *regs)

SYSCALL_DEFINE0(sparc_pipe)

{

	int fd[2];

	int error;
@@ -81,7 +81,7 @@ asmlinkage long sparc_pipe(struct pt_regs *regs) 
	error = do_pipe_flags(fd, 0);

	if (error)

		goto out;

	regs->u_regs[UREG_I1] = fd[1];

	current_pt_regs()->u_regs[UREG_I1] = fd[1];

	error = fd[0];

out:

	return error;
@@ -98,9 +98,9 @@ int sparc_mmap_check(unsigned long addr, unsigned long len) 


/* Linux version of mmap */



asmlinkage long sys_mmap2(unsigned long addr, unsigned long len,

	unsigned long prot, unsigned long flags, unsigned long fd,

	unsigned long pgoff)

SYSCALL_DEFINE6(mmap2, unsigned long, addr, unsigned long, len,

	unsigned long, prot, unsigned long, flags, unsigned long, fd,

	unsigned long, pgoff)

{

	/* Make sure the shift for mmap2 is constant (12), no matter what PAGE_SIZE

	   we have. */
@@ -108,17 +108,17 @@ asmlinkage long sys_mmap2(unsigned long addr, unsigned long len, 
			       pgoff >> (PAGE_SHIFT - 12));

}



asmlinkage long sys_mmap(unsigned long addr, unsigned long len,

	unsigned long prot, unsigned long flags, unsigned long fd,

	unsigned long off)

SYSCALL_DEFINE6(mmap, unsigned long, addr, unsigned long, len,

	unsigned long, prot, unsigned long, flags, unsigned long, fd,

	unsigned long, off)

{

	/* no alignment check? */

	return ksys_mmap_pgoff(addr, len, prot, flags, fd, off >> PAGE_SHIFT);

}



long sparc_remap_file_pages(unsigned long start, unsigned long size,

			   unsigned long prot, unsigned long pgoff,

			   unsigned long flags)

SYSCALL_DEFINE5(sparc_remap_file_pages, unsigned long, start, unsigned long, size,

			   unsigned long, prot, unsigned long, pgoff,

			   unsigned long, flags)

{

	/* This works on an existing mmap so we don't need to validate

	 * the range as that was done at the original mmap call.
@@ -127,11 +127,10 @@ long sparc_remap_file_pages(unsigned long start, unsigned long size, 
				    (pgoff >> (PAGE_SHIFT - 12)), flags);

}



/* we come to here via sys_nis_syscall so it can setup the regs argument */

asmlinkage unsigned long

c_sys_nis_syscall (struct pt_regs *regs)

SYSCALL_DEFINE0(nis_syscall)

{

	static int count = 0;

	struct pt_regs *regs = current_pt_regs();



	if (count++ > 5)

		return -ENOSYS;
@@ -202,7 +201,7 @@ SYSCALL_DEFINE5(rt_sigaction, int, sig, 
	return ret;

}



asmlinkage long sys_getdomainname(char __user *name, int len)

SYSCALL_DEFINE2(getdomainname, char __user *, name, int, len)

{

 	int nlen, err;

arch/sparc/kernel/sys_sparc_64.c

+8 −10
Original line number Diff line number Diff line
@@ -39,7 +39,7 @@ 


/* #define DEBUG_UNIMP_SYSCALL */



asmlinkage unsigned long sys_getpagesize(void)

SYSCALL_DEFINE0(getpagesize)

{

	return PAGE_SIZE;

}
@@ -310,7 +310,7 @@ void arch_pick_mmap_layout(struct mm_struct *mm) 
 * sys_pipe() is the normal C calling standard for creating

 * a pipe. It's not the way unix traditionally does this, though.

 */

SYSCALL_DEFINE1(sparc_pipe_real, struct pt_regs *, regs)

SYSCALL_DEFINE0(sparc_pipe)

{

	int fd[2];

	int error;
@@ -318,7 +318,7 @@ SYSCALL_DEFINE1(sparc_pipe_real, struct pt_regs *, regs) 
	error = do_pipe_flags(fd, 0);

	if (error)

		goto out;

	regs->u_regs[UREG_I1] = fd[1];

	current_pt_regs()->u_regs[UREG_I1] = fd[1];

	error = fd[0];

out:

	return error;
@@ -480,10 +480,10 @@ SYSCALL_DEFINE5(64_mremap, unsigned long, addr, unsigned long, old_len, 
	return sys_mremap(addr, old_len, new_len, flags, new_addr);

}



/* we come to here via sys_nis_syscall so it can setup the regs argument */

asmlinkage unsigned long c_sys_nis_syscall(struct pt_regs *regs)

SYSCALL_DEFINE0(nis_syscall)

{

	static int count;

	struct pt_regs *regs = current_pt_regs();

	

	/* Don't make the system unusable, if someone goes stuck */

	if (count++ > 5)
@@ -523,8 +523,6 @@ asmlinkage void sparc_breakpoint(struct pt_regs *regs) 
	exception_exit(prev_state);

}



extern void check_pending(int signum);



SYSCALL_DEFINE2(getdomainname, char __user *, name, int, len)

{

        int nlen, err;
@@ -608,9 +606,9 @@ SYSCALL_DEFINE5(utrap_install, utrap_entry_t, type, 
	return 0;

}



asmlinkage long sparc_memory_ordering(unsigned long model,

				      struct pt_regs *regs)

SYSCALL_DEFINE1(memory_ordering, unsigned long, model)

{

	struct pt_regs *regs = current_pt_regs();

	if (model >= 3)

		return -EINVAL;

	regs->tstate = (regs->tstate & ~TSTATE_MM) | (model << 14);
@@ -644,7 +642,7 @@ SYSCALL_DEFINE5(rt_sigaction, int, sig, const struct sigaction __user *, act, 
	return ret;

}



asmlinkage long sys_kern_features(void)

SYSCALL_DEFINE0(kern_features)

{

	return KERN_FEATURE_MIXED_MODE_STACK;

}

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