diff options
Diffstat (limited to 'arch/mips/kernel/syscall.c')
-rw-r--r-- | arch/mips/kernel/syscall.c | 53 |
1 files changed, 0 insertions, 53 deletions
diff --git a/arch/mips/kernel/syscall.c b/arch/mips/kernel/syscall.c index 2bd561bc05ae..c611e2df7767 100644 --- a/arch/mips/kernel/syscall.c +++ b/arch/mips/kernel/syscall.c | |||
@@ -127,28 +127,6 @@ _sys_clone(nabi_no_regargs struct pt_regs regs) | |||
127 | parent_tidptr, child_tidptr); | 127 | parent_tidptr, child_tidptr); |
128 | } | 128 | } |
129 | 129 | ||
130 | /* | ||
131 | * sys_execve() executes a new program. | ||
132 | */ | ||
133 | asmlinkage int sys_execve(nabi_no_regargs struct pt_regs regs) | ||
134 | { | ||
135 | int error; | ||
136 | struct filename *filename; | ||
137 | |||
138 | filename = getname((const char __user *) (long)regs.regs[4]); | ||
139 | error = PTR_ERR(filename); | ||
140 | if (IS_ERR(filename)) | ||
141 | goto out; | ||
142 | error = do_execve(filename->name, | ||
143 | (const char __user *const __user *) (long)regs.regs[5], | ||
144 | (const char __user *const __user *) (long)regs.regs[6], | ||
145 | ®s); | ||
146 | putname(filename); | ||
147 | |||
148 | out: | ||
149 | return error; | ||
150 | } | ||
151 | |||
152 | SYSCALL_DEFINE1(set_thread_area, unsigned long, addr) | 130 | SYSCALL_DEFINE1(set_thread_area, unsigned long, addr) |
153 | { | 131 | { |
154 | struct thread_info *ti = task_thread_info(current); | 132 | struct thread_info *ti = task_thread_info(current); |
@@ -313,34 +291,3 @@ asmlinkage void bad_stack(void) | |||
313 | { | 291 | { |
314 | do_exit(SIGSEGV); | 292 | do_exit(SIGSEGV); |
315 | } | 293 | } |
316 | |||
317 | /* | ||
318 | * Do a system call from kernel instead of calling sys_execve so we | ||
319 | * end up with proper pt_regs. | ||
320 | */ | ||
321 | int kernel_execve(const char *filename, | ||
322 | const char *const argv[], | ||
323 | const char *const envp[]) | ||
324 | { | ||
325 | register unsigned long __a0 asm("$4") = (unsigned long) filename; | ||
326 | register unsigned long __a1 asm("$5") = (unsigned long) argv; | ||
327 | register unsigned long __a2 asm("$6") = (unsigned long) envp; | ||
328 | register unsigned long __a3 asm("$7"); | ||
329 | unsigned long __v0; | ||
330 | |||
331 | __asm__ volatile (" \n" | ||
332 | " .set noreorder \n" | ||
333 | " li $2, %5 # __NR_execve \n" | ||
334 | " syscall \n" | ||
335 | " move %0, $2 \n" | ||
336 | " .set reorder \n" | ||
337 | : "=&r" (__v0), "=r" (__a3) | ||
338 | : "r" (__a0), "r" (__a1), "r" (__a2), "i" (__NR_execve) | ||
339 | : "$2", "$8", "$9", "$10", "$11", "$12", "$13", "$14", "$15", "$24", | ||
340 | "memory"); | ||
341 | |||
342 | if (__a3 == 0) | ||
343 | return __v0; | ||
344 | |||
345 | return -__v0; | ||
346 | } | ||