glibc/sysdeps/unix/sysv/linux/sh/syscall.S

/* Copyright (C) 2000 Free Software Foundation, Inc.
   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Library General Public License as
   published by the Free Software Foundation; either version 2 of the
   License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Library General Public License for more details.

   You should have received a copy of the GNU Library General Public
   License along with the GNU C Library; see the file COPYING.LIB.  If not,
   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
   Boston, MA 02111-1307, USA.  */

#include <sysdep.h>

ENTRY (__syscall)
	mov	r4, r3			// syscall number
	mov	r5, r4			// p1
	mov	r6, r5			// p2
	mov	r7, r6			// p3
	mov.l	@r15, r7		// p4
	mov.l	@(4,r15), r0		// p5
	mov.l	@(8,r15), r1		// p6
	mov.l	@(12,r15), r2		// p7
	trapa	#0x17
	mov     r0, r1
	mov	#-12, r2
	shad	r2, r1
	not	r1, r1			// r1=0 means r0 = -1 to -4095
	tst	r1, r1			// i.e. error in linux
	bf	1f
	mov.l	.L2, r1
#ifdef SHARED
	mov	r0, r4
	mov.l	r12, @-r15
	sts.l	pr, @-r15
        mov.l	0f, r12
	mova	0f, r0
	add	r0, r12
	mova	.L2, r0
	add	r0, r1
	jsr	@r1
	 nop
	lds.l	@r15+, pr
	rts
	 mov.l	@r15+, r12
	.align 2
0:
	.long	_GLOBAL_OFFSET_TABLE_
#else
	jmp	@r1
	 mov	r0, r4
#endif
1:
	rts
	 nop

	.align	2
.L2:
	.long	PLTJMP(C_SYMBOL_NAME(__syscall_error))
PSEUDO_END (__syscall)

weak_alias (__syscall, syscall)
Update. 2000-10-26 Kazumoto Kojima <kkojima@rr.iij4u.or.jp> Yutaka Niibe <gniibe@chroot.org> * sysdeps/sh/dl-machine.h (elf_machine_rela): Handle in place relocation which is generated by new ld. * sysdeps/sh/elf/initfini.c (_init): Preseted __fpscr_values. (_fini): Delete an obsolete register prefix. * sysdeps/unix/sysv/linux/sh/Versions: Add __xstat64, __fxstat64, __lxstat64, alphasort64, glob64, readdir64, readdir64_r, scandir64 and versionsort64 as the 2.2-versioned symbols. * sysdeps/unix/sysv/linux/sh/bits/fcntl.h: New file. * sysdeps/unix/sysv/linux/sh/brk.c: Changes for the new system call calling convention of the kernel. * sysdeps/unix/sysv/linux/sh/pipe.S: Likewise. * sysdeps/unix/sysv/linux/sh/socket.S: Likewise. * sysdeps/unix/sysv/linux/sh/clone.S: Likewise. * sysdeps/unix/sysv/linux/sh/vfork.S: Likewise. * sysdeps/unix/sysv/linux/sh/sysdep.h: Likewise. * sysdeps/unix/sysv/linux/sh/fcntl.c: New file. * sysdeps/unix/sysv/linux/sh/lockf64.c: New file. * sysdeps/unix/sysv/linux/sh/sys/user.h: Include the kernel header file and delete the definitions of struct user and user_fp. * sysdeps/unix/sysv/linux/sh/syscall.S: New file. * sysdeps/unix/sysv/linux/sh/syscalls.list: Remove entries for s_ioctl, s_ipc, s_llseek, s_chown, s_fchown, s_lchown, s_execve, rt_sigaction, rt_sigpending, rt_sigprocmask, rt_sigqueueinfo, rt_sigsuspend, rt_sigtimedwait, s_getcwd, s_getdents, s_getgroups, s_getpriority, s_getegid, s_geteuid, s_getuid, getresgid, getresuid, s_getrlimit, s_poll, s_pread64, s_ptrace, s_pwrite64, s_reboot, s_setrlimit, s_sigaction, s_sigpending, s_sigprocmask, s_sigsuspend, s_setfsgid, s_setfsuid, s_setgid, s_setgroups, s_setregid, s_setresgid, s_setresuid, s_setreuid, s_setuid, s_sysctl, s_ugetrlimit, s_ustat, sys_fstat, sys_lstat, sys_mknod, sys_readv, sys_stat, sys_writev and syscall. 2000-10-26 02:34:17 +00:00			`/* Copyright (C) 2000 Free Software Foundation, Inc.`
			`This file is part of the GNU C Library.`

			`The GNU C Library is free software; you can redistribute it and/or`
			`modify it under the terms of the GNU Library General Public License as`
			`published by the Free Software Foundation; either version 2 of the`
			`License, or (at your option) any later version.`

			`The GNU C Library is distributed in the hope that it will be useful,`
			`but WITHOUT ANY WARRANTY; without even the implied warranty of`
			`MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU`
			`Library General Public License for more details.`

			`You should have received a copy of the GNU Library General Public`
			`License along with the GNU C Library; see the file COPYING.LIB. If not,`
			`write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,`
			`Boston, MA 02111-1307, USA. */`

			`#include <sysdep.h>`

			`ENTRY (__syscall)`
			`mov r4, r3 // syscall number`
			`mov r5, r4 // p1`
			`mov r6, r5 // p2`
			`mov r7, r6 // p3`
			`mov.l @r15, r7 // p4`
			`mov.l @(4,r15), r0 // p5`
			`mov.l @(8,r15), r1 // p6`
			`mov.l @(12,r15), r2 // p7`
			`trapa #0x17`
			`mov r0, r1`
			`mov #-12, r2`
			`shad r2, r1`
			`not r1, r1 // r1=0 means r0 = -1 to -4095`
			`tst r1, r1 // i.e. error in linux`
			`bf 1f`
			`mov.l .L2, r1`
			`#ifdef SHARED`
			`mov r0, r4`
			`mov.l r12, @-r15`
			`sts.l pr, @-r15`
			`mov.l 0f, r12`
			`mova 0f, r0`
			`add r0, r12`
			`mova .L2, r0`
			`add r0, r1`
			`jsr @r1`
			`nop`
			`lds.l @r15+, pr`
			`rts`
			`mov.l @r15+, r12`
			`.align 2`
			`0:`
			`.long _GLOBAL_OFFSET_TABLE_`
			`#else`
			`jmp @r1`
			`mov r0, r4`
			`#endif`
			`1:`
			`rts`
			`nop`

			`.align 2`
			`.L2:`
			`.long PLTJMP(C_SYMBOL_NAME(__syscall_error))`
			`PSEUDO_END (__syscall)`

			`weak_alias (__syscall, syscall)`