patch-2.3.6 linux/arch/sparc64/kernel/binfmt_aout32.c

• Lines: 83
• Date: Wed Jun 9 14:44:25 1999
• Orig file: v2.3.5/linux/arch/sparc64/kernel/binfmt_aout32.c
• Orig date: Mon Mar 22 10:06:36 1999

diff -u --recursive --new-file v2.3.5/linux/arch/sparc64/kernel/binfmt_aout32.c linux/arch/sparc64/kernel/binfmt_aout32.c
@@ -48,9 +48,7 @@
 	end = PAGE_ALIGN(end);
 	if (end <= start)
 		return;
-	do_mmap(NULL, start, end - start,
-		PROT_READ | PROT_WRITE | PROT_EXEC,
-		MAP_FIXED | MAP_PRIVATE, 0);
+	do_brk(start, end - start);
 }
 
 /*
@@ -284,24 +282,18 @@
  	current->flags &= ~PF_FORKNOEXEC;
 	if (N_MAGIC(ex) == NMAGIC) {
 		/* Fuck me plenty... */
-		error = do_mmap(NULL, N_TXTADDR(ex), ex.a_text,
-				PROT_READ|PROT_WRITE|PROT_EXEC,
-				MAP_FIXED|MAP_PRIVATE, 0);
+		error = do_brk(N_TXTADDR(ex), ex.a_text);
 		read_exec(bprm->dentry, fd_offset, (char *) N_TXTADDR(ex),
 			  ex.a_text, 0);
-		error = do_mmap(NULL, N_DATADDR(ex), ex.a_data,
-				PROT_READ|PROT_WRITE|PROT_EXEC,
-				MAP_FIXED|MAP_PRIVATE, 0);
+		error = do_brk(N_DATADDR(ex), ex.a_data);
 		read_exec(bprm->dentry, fd_offset + ex.a_text, (char *) N_DATADDR(ex),
 			  ex.a_data, 0);
 		goto beyond_if;
 	}
 
 	if (N_MAGIC(ex) == OMAGIC) {
-		do_mmap(NULL, N_TXTADDR(ex) & PAGE_MASK,
-			ex.a_text+ex.a_data + PAGE_SIZE - 1,
-			PROT_READ|PROT_WRITE|PROT_EXEC,
-			MAP_FIXED|MAP_PRIVATE, 0);
+		do_brk(N_TXTADDR(ex) & PAGE_MASK,
+			ex.a_text+ex.a_data + PAGE_SIZE - 1);
 		read_exec(bprm->dentry, fd_offset, (char *) N_TXTADDR(ex),
 			  ex.a_text+ex.a_data, 0);
 	} else {
@@ -316,9 +308,7 @@
 
 		if (!file->f_op || !file->f_op->mmap) {
 			sys_close(fd);
-			do_mmap(NULL, 0, ex.a_text+ex.a_data,
-				PROT_READ|PROT_WRITE|PROT_EXEC,
-				MAP_FIXED|MAP_PRIVATE, 0);
+			do_brk(0, ex.a_text+ex.a_data);
 			read_exec(bprm->dentry, fd_offset,
 				  (char *) N_TXTADDR(ex), ex.a_text+ex.a_data, 0);
 			goto beyond_if;
@@ -359,11 +349,16 @@
 
 	set_brk(current->mm->start_brk, current->mm->brk);
 
-	p = setup_arg_pages(p, bprm);
+	retval = setup_arg_pages(bprm);
+	if (retval < 0) { 
+		/* Someone check-me: is this error path enough? */ 
+		send_sig(SIGKILL, current, 0); 
+		return retval;
+	}
 
-	p = (unsigned long) create_aout32_tables((char *)p, bprm);
-	current->mm->start_stack = p;
-	start_thread32(regs, ex.a_entry, p);
+	current->mm->start_stack =
+		(unsigned long) create_aout32_tables((char *)bprm->p, bprm);
+	start_thread32(regs, ex.a_entry, current->mm->start_stack);
 	if (current->flags & PF_PTRACED)
 		send_sig(SIGTRAP, current, 0);
 	return 0;
@@ -442,9 +437,7 @@
 	len = PAGE_ALIGN(ex.a_text + ex.a_data);
 	bss = ex.a_text + ex.a_data + ex.a_bss;
 	if (bss > len) {
-		error = do_mmap(NULL, start_addr + len, bss - len,
-				PROT_READ | PROT_WRITE | PROT_EXEC,
-				MAP_PRIVATE | MAP_FIXED, 0);
+		error = do_brk(start_addr + len, bss - len);
 		retval = error;
 		if (error != start_addr + len)
 			goto out_putf;