Deprecated syscalls and defines were removed. Signed-off-by: Richard Kuo --- arch/hexagon/include/asm/syscall.h | 40 +++++++++ arch/hexagon/include/asm/unistd.h | 34 ++++++++ arch/hexagon/kernel/syscall.c | 149 +++++++++++++++++++++++++++++++++++++ arch/hexagon/kernel/syscalltab.c | 32 +++++++ 4 files changed, 255 insertions(+) Index: linux-hexagon-kernel/arch/hexagon/include/asm/syscall.h =================================================================== --- /dev/null 1970-01-01 00:00:00.000000000 +0000 +++ linux-hexagon-kernel/arch/hexagon/include/asm/syscall.h 2011-08-24 19:21:18.666308171 -0500 @@ -0,0 +1,40 @@ +/* + * Syscall support for the Hexagon architecture + * + * Copyright (c) 2010-2011, Code Aurora Forum. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 and + * only version 2 as published by the Free Software Foundation. + * + * This program 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 General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + */ + +#ifndef _ASM_HEXAGON_SYSCALL_H +#define _ASM_HEXAGON_SYSCALL_H + +typedef long (*syscall_fn)(unsigned long, unsigned long, + unsigned long, unsigned long, + unsigned long, unsigned long); + +asmlinkage int sys_execve(char __user *ufilename, char __user * __user *argv, + char __user * __user *envp); +asmlinkage int sys_clone(unsigned long clone_flags, unsigned long newsp, + unsigned long parent_tidp, unsigned long child_tidp); + +#define sys_execve sys_execve +#define sys_clone sys_clone + +#include + +extern void *sys_call_table[]; + +#endif Index: linux-hexagon-kernel/arch/hexagon/include/asm/unistd.h =================================================================== --- /dev/null 1970-01-01 00:00:00.000000000 +0000 +++ linux-hexagon-kernel/arch/hexagon/include/asm/unistd.h 2011-08-24 19:08:34.385329903 -0500 @@ -0,0 +1,34 @@ +/* + * Syscall support for Hexagon + * + * Copyright (c) 2010-2011, Code Aurora Forum. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 and + * only version 2 as published by the Free Software Foundation. + * + * This program 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 General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + */ + +#if !defined(_ASM_HEXAGON_UNISTD_H) || defined(__SYSCALL) +#define _ASM_HEXAGON_UNISTD_H + +/* + * The kernel pulls this unistd.h in three different ways: + * 1. the "normal" way which gets all the __NR defines + * 2. with __SYSCALL defined to produce function declarations + * 3. with __SYSCALL defined to produce syscall table initialization + * See also: syscalltab.c + */ + +#include + +#endif Index: linux-hexagon-kernel/arch/hexagon/kernel/syscall.c =================================================================== --- /dev/null 1970-01-01 00:00:00.000000000 +0000 +++ linux-hexagon-kernel/arch/hexagon/kernel/syscall.c 2011-08-24 19:08:34.385329903 -0500 @@ -0,0 +1,149 @@ +/* + * Hexagon system calls + * + * Copyright (c) 2010-2011, Code Aurora Forum. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 and + * only version 2 as published by the Free Software Foundation. + * + * This program 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 General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +/* + * System calls with architecture-specific wrappers. + * See signal.c for signal-related system call wrappers. + */ + +asmlinkage int sys_execve(char __user *ufilename, + const char __user *const __user *argv, + const char __user *const __user *envp) +{ + struct pt_regs *pregs = current_thread_info()->regs; + char *filename; + int retval; + + filename = getname(ufilename); + retval = PTR_ERR(filename); + if (IS_ERR(filename)) + return retval; + + retval = do_execve(filename, argv, envp, pregs); + putname(filename); + + return retval; +} + +asmlinkage int sys_clone(unsigned long clone_flags, unsigned long newsp, + unsigned long parent_tidp, unsigned long child_tidp) +{ + struct pt_regs *pregs = current_thread_info()->regs; + + if (!newsp) + newsp = pregs->SP; + return do_fork(clone_flags, newsp, pregs, 0, (int __user *)parent_tidp, + (int __user *)child_tidp); +} + +/* + * Many archictures support both sys_mmap and sys_mmap2, which use + * a common do_mmap2 function to do the work. So long as we support + * only mmap2, we do it all in-line here. + */ +asmlinkage int sys_mmap2(unsigned long addr, size_t len, unsigned long prot, + unsigned long flags, unsigned long fd, + unsigned long pgoff) +{ + struct file *file = NULL; + int retval = -EBADF; + + flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE); + if (!(flags & MAP_ANONYMOUS)) { + file = fget(fd); + if (!file) + return retval; + } + + down_write(¤t->mm->mmap_sem); + retval = do_mmap_pgoff(file, addr, len, prot, flags, pgoff); + up_write(¤t->mm->mmap_sem); + if (file) + fput(file); + + return retval; +} + +/* apparently this should only map on page boundaries */ +asmlinkage int sys_mmap(unsigned long addr, size_t len, + unsigned long prot, unsigned long flags, + unsigned long fd, off_t off) +{ + struct file *file = NULL; + int retval = -EINVAL; + unsigned long pgoff; + + if (off & ((1 << PAGE_SHIFT) - 1)) + return retval; + pgoff = off >> PAGE_SHIFT; + + flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE); + if (!(flags & MAP_ANONYMOUS)) { + file = fget(fd); + retval = -EBADF; + if (!file) + return retval; + } + + down_write(¤t->mm->mmap_sem); + retval = do_mmap_pgoff(file, addr, len, prot, flags, pgoff); + up_write(¤t->mm->mmap_sem); + if (file) + fput(file); + + return retval; +} + + +/* + * Do a system call from the kernel, so as to have a proper pt_regs + * and recycle the sys_execvpe infrustructure. + */ +int kernel_execve(const char *filename, + const char *const argv[], const char *const envp[]) +{ + register unsigned long __a0 asm("r0") = (unsigned long) filename; + register unsigned long __a1 asm("r1") = (unsigned long) argv; + register unsigned long __a2 asm("r2") = (unsigned long) envp; + int retval; + + __asm__ volatile( + " R6 = #%4;\n" + " trap0(#1);\n" + " %0 = R0;\n" + : "=r" (retval) + : "r" (__a0), "r" (__a1), "r" (__a2), "i" (__NR_execve) + ); + + return retval; +} +EXPORT_SYMBOL(kernel_execve); Index: linux-hexagon-kernel/arch/hexagon/kernel/syscalltab.c =================================================================== --- /dev/null 1970-01-01 00:00:00.000000000 +0000 +++ linux-hexagon-kernel/arch/hexagon/kernel/syscalltab.c 2011-08-24 19:08:34.385329903 -0500 @@ -0,0 +1,32 @@ +/* + * System call table for Hexagon + * + * Copyright (c) 2010-2011, Code Aurora Forum. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 and + * only version 2 as published by the Free Software Foundation. + * + * This program 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 General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + */ + +#include +#include +#include + +#include + +#undef __SYSCALL +#define __SYSCALL(nr, call) [nr] = (call), + +void *sys_call_table[__NR_syscalls] = { +#include +}; -- Sent by an employee of the Qualcomm Innovation Center, Inc. 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