/* this function was automagically generated */
static int32_t NaClSysMmapDecoder(struct NaClApp *nap) {
struct NaClSysMmapArgs {
uint32_t start;
uint32_t length;
uint32_t prot;
uint32_t flags;
uint32_t d;
uint32_t offp;
} p = *(struct NaClSysMmapArgs *) nap->syscall_args;
// ### temporary disabled
/* d'b: disable user malloc() */
//// return NACL_ABI_ENOMEM;
// return natp->nap->manifest->user_setup->heap_ptr;
/* d'b end */
return NaClSysMmap(nap, (void *) (uintptr_t) p.start, (size_t) p.length, (int) p.prot, (int) p.flags, (int) p.d, (nacl_abi_off_t *) (uintptr_t) p.offp);
}
int main(int argc, char **argv) {
char *nacl_file;
struct GioMemoryFileSnapshot gf;
struct NaClApp state;
struct NaClAppThread nat, *natp = &nat;
int errcode;
uint32_t initial_addr;
uint32_t addr;
struct NaClVmmap *mem_map;
char *nacl_verbosity = getenv("NACLVERBOSITY");
if (argc < 2) {
printf("No nexe file!\n\nFAIL\n");
}
nacl_file = argv[1];
NaClLogModuleInit();
NaClLogSetVerbosity((NULL == nacl_verbosity)
? 0
: strtol(nacl_verbosity, (char **) 0, 0));
errcode = GioMemoryFileSnapshotCtor(&gf, nacl_file);
ASSERT_NE(errcode, 0);
errcode = NaClAppCtor(&state);
ASSERT_NE(errcode, 0);
errcode = NaClAppLoadFile((struct Gio *) &gf,
&state,
NACL_ABI_CHECK_OPTION_CHECK);
ASSERT_EQ(errcode, 0);
InitThread(&state, natp);
/*
* Initial mappings:
* 0. -- Zero page
* 1. rx Static code segment
* 2. r Read-only data segment
* 3. rw Writable data segment
* 4. rw Stack
* There is no dynamic code area in this case.
*/
/* Check the initial mappings. */
mem_map = &state.mem_map;
ASSERT_EQ(mem_map->nvalid, 5);
CheckLowerMappings(mem_map);
/* Allocate range */
addr = NaClSysMmap(natp, 0, 3 * NACL_MAP_PAGESIZE,
NACL_ABI_PROT_READ | NACL_ABI_PROT_WRITE,
NACL_ABI_MAP_ANONYMOUS | NACL_ABI_MAP_PRIVATE,
-1, 0);
printf("addr=0x%"NACL_PRIx32"\n", addr);
initial_addr = addr;
/*
* The mappings have changed to become:
* 0. -- Zero page
* 1. rx Static code segment
* 2. r Read-only data segment
* 3. rw Writable data segment
* 4. rw mmap()'d anonymous, 3 pages (new)
* 5. rw Stack
*/
/* Map to overwrite the start of the previously allocated range */
addr = NaClSysMmap(natp, (void *) (uintptr_t) initial_addr,
2 * NACL_MAP_PAGESIZE,
NACL_ABI_PROT_READ | NACL_ABI_PROT_WRITE,
NACL_ABI_MAP_ANONYMOUS | NACL_ABI_MAP_PRIVATE
| NACL_ABI_MAP_FIXED,
-1, 0);
printf("addr=0x%"NACL_PRIx32"\n", addr);
ASSERT_EQ(addr, initial_addr);
/*
* The mappings have changed to become:
* 0. -- Zero page
* 1. rx Static code segment
* 2. r Read-only data segment
* 3. rw Writable data segment
* 4. rw mmap()'d anonymous, 2 pages (new)
* 5. rw mmap()'d anonymous, 1 pages (previous)
* 6. rw Stack
*/
/* Allocate new page */
addr = NaClSysMmap(natp, 0, NACL_MAP_PAGESIZE,
NACL_ABI_PROT_READ | NACL_ABI_PROT_WRITE,
NACL_ABI_MAP_ANONYMOUS | NACL_ABI_MAP_PRIVATE,
-1, 0);
printf("addr=0x%"NACL_PRIx32"\n", addr);
/*
* Our allocation strategy is to scan down from stack. This is an
* implementation detail and not part of the guaranteed semantics,
* but it is good to test that what we expect of our implementation
* didn't change.
*/
ASSERT_EQ_MSG(addr, initial_addr - NACL_MAP_PAGESIZE,
"Allocation strategy changed!");
/*
* The mappings have changed to become:
* 0. -- Zero page
* 1. rx Static code segment
* 2. r Read-only data segment
* 3. rw Writable data segment
* 4. rw mmap()'d anonymous, 1 pages (new)
* 5. rw mmap()'d anonymous, 2 pages
* 6. rw mmap()'d anonymous, 1 pages
* 7. rw Stack
*/
NaClVmmapMakeSorted(mem_map);
ASSERT_EQ(mem_map->nvalid, 8);
CheckLowerMappings(mem_map);
NaClVmmapDebug(mem_map, "After allocations");
/* Skip mappings 0, 1, 2 and 3. */
ASSERT_EQ(mem_map->vmentry[4]->page_num,
(initial_addr - NACL_MAP_PAGESIZE) >> NACL_PAGESHIFT);
ASSERT_EQ(mem_map->vmentry[4]->npages,
NACL_PAGES_PER_MAP);
ASSERT_EQ(mem_map->vmentry[5]->page_num,
initial_addr >> NACL_PAGESHIFT);
ASSERT_EQ(mem_map->vmentry[5]->npages,
2 * NACL_PAGES_PER_MAP);
ASSERT_EQ(mem_map->vmentry[6]->page_num,
(initial_addr + 2 * NACL_MAP_PAGESIZE) >> NACL_PAGESHIFT);
ASSERT_EQ(mem_map->vmentry[6]->npages,
NACL_PAGES_PER_MAP);
/*
* Undo effects of previous mmaps
*/
errcode = NaClSysMunmap(natp,
(void *) (uintptr_t) (initial_addr
- NACL_MAP_PAGESIZE),
NACL_MAP_PAGESIZE * 4);
ASSERT_EQ(errcode, 0);
/*
* Mappings return to being:
* 0. -- Zero page
* 1. rx Static code segment
* 2. r Read-only data segment
* 3. rw Writable data segment
* 4. rw Stack
*/
ASSERT_EQ(mem_map->nvalid, 5);
CheckLowerMappings(mem_map);
/* Allocate range */
addr = NaClSysMmap(natp, 0, 9 * NACL_MAP_PAGESIZE,
NACL_ABI_PROT_READ | NACL_ABI_PROT_WRITE,
NACL_ABI_MAP_ANONYMOUS | NACL_ABI_MAP_PRIVATE, -1, 0);
printf("addr=0x%"NACL_PRIx32"\n", addr);
initial_addr = addr;
/*
* The mappings have changed to become:
* 0. -- Zero page
* 1. rx Static code segment
* 2. r Read-only data segment
* 3. rw Writable data segment
* 4. rw mmap()'d anonymous, 9 pages (new)
* 5. rw Stack
*/
/* Map into middle of previously allocated range */
addr = NaClSysMmap(natp,
(void *) (uintptr_t) (initial_addr
+ 2 * NACL_MAP_PAGESIZE),
3 * NACL_MAP_PAGESIZE,
NACL_ABI_PROT_READ | NACL_ABI_PROT_WRITE,
NACL_ABI_MAP_ANONYMOUS | NACL_ABI_MAP_PRIVATE
| NACL_ABI_MAP_FIXED,
-1, 0);
printf("addr=0x%"NACL_PRIx32"\n", addr);
ASSERT_EQ(addr, initial_addr + NACL_MAP_PAGESIZE * 2);
/*
* The mappings have changed to become:
* 0. -- Zero page
* 1. rx Static code segment
* 2. r Read-only data segment
* 3. rw Writable data segment
* 4. rw mmap()'d anonymous, 2 pages (previous)
* 5. rw mmap()'d anonymous, 3 pages (new)
* 6. rw mmap()'d anonymous, 4 pages (previous)
* 7. rw Stack
*/
NaClVmmapMakeSorted(mem_map);
ASSERT_EQ(mem_map->nvalid, 8);
CheckLowerMappings(mem_map);
ASSERT_EQ(mem_map->vmentry[4]->page_num,
initial_addr >> NACL_PAGESHIFT);
ASSERT_EQ(mem_map->vmentry[4]->npages,
2 * NACL_PAGES_PER_MAP);
ASSERT_EQ(mem_map->vmentry[5]->page_num,
(initial_addr + 2 * NACL_MAP_PAGESIZE) >> NACL_PAGESHIFT);
ASSERT_EQ(mem_map->vmentry[5]->npages,
3 * NACL_PAGES_PER_MAP);
ASSERT_EQ(mem_map->vmentry[6]->page_num,
(initial_addr + 5 * NACL_MAP_PAGESIZE) >> NACL_PAGESHIFT);
ASSERT_EQ(mem_map->vmentry[6]->npages,
4 * NACL_PAGES_PER_MAP);
/*
* Undo effects of previous mmaps
*/
errcode = NaClSysMunmap(natp, (void *) (uintptr_t) initial_addr,
9 * NACL_MAP_PAGESIZE);
ASSERT_EQ(errcode, 0);
ASSERT_EQ(mem_map->nvalid, 5);
CheckLowerMappings(mem_map);
/*
* Mappings return to being:
* 0. -- Zero page
* 1. rx Static code segment
* 2. r Read-only data segment
* 3. rw Writable data segment
* 4. rw Stack
*/
/*
* Check use of hint.
*/
addr = NaClSysMmap(natp, (void *) (uintptr_t) initial_addr,
NACL_MAP_PAGESIZE,
NACL_ABI_PROT_READ | NACL_ABI_PROT_WRITE,
NACL_ABI_MAP_ANONYMOUS | NACL_ABI_MAP_PRIVATE,
-1, 0);
ASSERT_LE(addr, 0xffff0000u);
printf("addr=0x%"NACL_PRIx32"\n", addr);
ASSERT_LE_MSG(initial_addr, addr, "returned address not at or above hint");
errcode = NaClSysMunmap(natp, (void *) (uintptr_t) addr, NACL_MAP_PAGESIZE);
ASSERT_EQ(errcode, 0);
/* Check handling of zero-sized mappings. */
addr = NaClSysMmap(natp, 0, 0,
NACL_ABI_PROT_READ | NACL_ABI_PROT_WRITE,
NACL_ABI_MAP_ANONYMOUS | NACL_ABI_MAP_PRIVATE, -1, 0);
ASSERT_EQ((int) addr, -NACL_ABI_EINVAL);
errcode = NaClSysMunmap(natp, (void *) (uintptr_t) initial_addr, 0);
ASSERT_EQ(errcode, -NACL_ABI_EINVAL);
printf("PASS\n");
return 0;
}
