CS318 - Pintos
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mmap-null.c
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1 /** Verifies that memory mappings at address 0 are disallowed. */
2 
3 #include <syscall.h>
4 #include "tests/lib.h"
5 #include "tests/main.h"
6 
7 void
8 test_main (void)
9 {
10  int handle;
11 
12  CHECK ((handle = open ("sample.txt")) > 1, "open \"sample.txt\"");
13  CHECK (mmap (handle, NULL) == MAP_FAILED, "try to mmap at address 0");
14 }
15 
lib.h
test_main
void test_main(void)
Verifies that memory mappings at address 0 are disallowed.
Definition: mmap-null.c:8
NULL
#define NULL
Definition: stddef.h:4
CHECK
#define CHECK(SUCCESS,...)
Takes an expression to test for SUCCESS and a message, which may include printf-style arguments.
Definition: lib.h:29
MAP_FAILED
#define MAP_FAILED
Definition: syscall.h:13
open
int open(const char *file)
Definition: syscall.c:103
main.h
mmap
mapid_t mmap(int fd, void *addr)
Project 3 and optionally project 4.
Definition: syscall.c:145
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