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-rw-r--r--arch/um/os-Linux/start_up.c24
1 files changed, 1 insertions, 23 deletions
diff --git a/arch/um/os-Linux/start_up.c b/arch/um/os-Linux/start_up.c
index 387e26af301a..503148504009 100644
--- a/arch/um/os-Linux/start_up.c
+++ b/arch/um/os-Linux/start_up.c
@@ -296,29 +296,7 @@ static void __init check_ptrace(void)
296 check_sysemu(); 296 check_sysemu();
297} 297}
298 298
299extern int create_tmp_file(unsigned long long len); 299extern void check_tmpexec(void);
300
301static void check_tmpexec(void)
302{
303 void *addr;
304 int err, fd = create_tmp_file(UM_KERN_PAGE_SIZE);
305
306 addr = mmap(NULL, UM_KERN_PAGE_SIZE,
307 PROT_READ | PROT_WRITE | PROT_EXEC, MAP_PRIVATE, fd, 0);
308 printf("Checking PROT_EXEC mmap in /tmp...");
309 fflush(stdout);
310 if(addr == MAP_FAILED){
311 err = errno;
312 perror("failed");
313 if(err == EPERM)
314 printf("/tmp must be not mounted noexec\n");
315 exit(1);
316 }
317 printf("OK\n");
318 munmap(addr, UM_KERN_PAGE_SIZE);
319
320 close(fd);
321}
322 300
323void os_early_checks(void) 301void os_early_checks(void)
324{ 302{