diff options
| -rw-r--r-- | arch/avr32/kernel/sys_avr32.c | 14 | ||||
| -rw-r--r-- | include/asm-avr32/unistd.h | 80 |
2 files changed, 17 insertions, 77 deletions
diff --git a/arch/avr32/kernel/sys_avr32.c b/arch/avr32/kernel/sys_avr32.c index 6ec5693..8deb600 100644 --- a/arch/avr32/kernel/sys_avr32.c +++ b/arch/avr32/kernel/sys_avr32.c @@ -49,3 +49,17 @@ asmlinkage long sys_mmap2(unsigned long addr, unsigned long len, fput(file); return error; } + +int kernel_execve(const char *file, char **argv, char **envp) +{ + register long scno asm("r8") = __NR_execve; + register long sc1 asm("r12") = (long)file; + register long sc2 asm("r11") = (long)argv; + register long sc3 asm("r10") = (long)envp; + + asm volatile("scall" + : "=r"(sc1) + : "r"(scno), "0"(sc1), "r"(sc2), "r"(sc3) + : "cc", "memory"); + return sc1; +} diff --git a/include/asm-avr32/unistd.h b/include/asm-avr32/unistd.h index 1f528f9..a50e500 100644 --- a/include/asm-avr32/unistd.h +++ b/include/asm-avr32/unistd.h @@ -281,30 +281,10 @@ #define __NR_tee 263 #define __NR_vmsplice 264 +#ifdef __KERNEL__ #define NR_syscalls 265 -/* - * AVR32 calling convention for system calls: - * - System call number in r8 - * - Parameters in r12 and downwards to r9 as well as r6 and r5. - * - Return value in r12 - */ - -/* - * user-visible error numbers are in the range -1 - -124: see - * <asm-generic/errno.h> - */ - -#define __syscall_return(type, res) do { \ - if ((unsigned long)(res) >= (unsigned long)(-125)) { \ - errno = -(res); \ - res = -1; \ - } \ - return (type) (res); \ - } while (0) - -#ifdef __KERNEL__ #define __ARCH_WANT_IPC_PARSE_VERSION #define __ARCH_WANT_STAT64 #define __ARCH_WANT_SYS_ALARM @@ -319,62 +299,6 @@ #define __ARCH_WANT_SYS_GETPGRP #define __ARCH_WANT_SYS_RT_SIGACTION #define __ARCH_WANT_SYS_RT_SIGSUSPEND -#endif - -#if defined(__KERNEL_SYSCALLS__) || defined(__CHECKER__) - -#include <linux/types.h> -#include <linux/linkage.h> -#include <asm/signal.h> - -struct pt_regs; - -/* - * we need this inline - forking from kernel space will result - * in NO COPY ON WRITE (!!!), until an execve is executed. This - * is no problem, but for the stack. This is handled by not letting - * main() use the stack at all after fork(). Thus, no function - * calls - which means inline code for fork too, as otherwise we - * would use the stack upon exit from 'fork()'. - * - * Actually only pause and fork are needed inline, so that there - * won't be any messing with the stack from main(), but we define - * some others too. - */ -static inline int execve(const char *file, char **argv, char **envp) -{ - register long scno asm("r8") = __NR_execve; - register long sc1 asm("r12") = (long)file; - register long sc2 asm("r11") = (long)argv; - register long sc3 asm("r10") = (long)envp; - int res; - - asm volatile("scall" - : "=r"(sc1) - : "r"(scno), "0"(sc1), "r"(sc2), "r"(sc3) - : "lr", "memory"); - res = sc1; - __syscall_return(int, res); -} - -asmlinkage long sys_rt_sigsuspend(sigset_t __user *unewset, size_t sigsetsize); -asmlinkage int sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss, - struct pt_regs *regs); -asmlinkage int sys_rt_sigreturn(struct pt_regs *regs); -asmlinkage int sys_pipe(unsigned long __user *filedes); -asmlinkage long sys_mmap2(unsigned long addr, unsigned long len, - unsigned long prot, unsigned long flags, - unsigned long fd, off_t offset); -asmlinkage int sys_cacheflush(int operation, void __user *addr, size_t len); -asmlinkage int sys_fork(struct pt_regs *regs); -asmlinkage int sys_clone(unsigned long clone_flags, unsigned long newsp, - unsigned long parent_tidptr, - unsigned long child_tidptr, struct pt_regs *regs); -asmlinkage int sys_vfork(struct pt_regs *regs); -asmlinkage int sys_execve(char __user *ufilename, char __user *__user *uargv, - char __user *__user *uenvp, struct pt_regs *regs); - -#endif /* * "Conditional" syscalls @@ -384,4 +308,6 @@ asmlinkage int sys_execve(char __user *ufilename, char __user *__user *uargv, */ #define cond_syscall(x) asm(".weak\t" #x "\n\t.set\t" #x ",sys_ni_syscall"); +#endif /* __KERNEL__ */ + #endif /* __ASM_AVR32_UNISTD_H */ |