diff options
Diffstat (limited to 'src/init')
| -rw-r--r-- | src/init/syscalls.c | 2 | ||||
| -rw-r--r-- | src/init/tests/main.c | 20 |
2 files changed, 17 insertions, 5 deletions
diff --git a/src/init/syscalls.c b/src/init/syscalls.c index ed7420e..7c3664c 100644 --- a/src/init/syscalls.c +++ b/src/init/syscalls.c @@ -46,7 +46,7 @@ int _syscall_fs_respond(char __user *buf, int ret) { return _syscall(_SYSCALL_FS_RESPOND, (int)buf, ret, 0, 0); } -int _syscall_memflag(void __user *addr, size_t len, int flags) { +void __user *_syscall_memflag(void __user *addr, size_t len, int flags) { return _syscall(_SYSCALL_MEMFLAG, (int)addr, (int)len, flags, 0); } diff --git a/src/init/tests/main.c b/src/init/tests/main.c index 29f6c61..d895289 100644 --- a/src/init/tests/main.c +++ b/src/init/tests/main.c @@ -105,13 +105,25 @@ static void test_memflag(void) { assert(_syscall_await() != 0); // test if the process crashed } - _syscall_memflag((void*)0x100000, 4096, 0); // try to free kernel memory - // TODO the kernel shouldn't even be mapped in userland + char *pages[4]; + for (size_t i = 0; i < 4; i++) { + pages[i] = _syscall_memflag(NULL, 4096, MEMFLAG_FINDFREE); + printf("[test_memflag] findfree: 0x%x\n", pages[i]); + + assert(pages[i] == _syscall_memflag(NULL, 4096, MEMFLAG_FINDFREE | MEMFLAG_PRESENT)); + if (i > 0) assert(pages[i] != pages[i-1]); + *pages[i] = 0x77; + } + + for (size_t i = 0; i < 4; i++) + _syscall_memflag(pages, 4096, MEMFLAG_PRESENT); + + // TODO check if reclaims } static void test_malloc(void) { // not really a test - void *p1, *p2, *p3; + void *p1, *p2; p1 = malloc(420); printf("p1 = 0x%x\n", p1); @@ -145,5 +157,5 @@ void test_all(void) { run_forked(test_orphaned_fs); run_forked(test_memflag); run_forked(test_malloc); -// run_forked(stress_fork); + run_forked(stress_fork); } |