mirrors/cosmopolitan
1
0
Fork 0
mirror of https://github.com/jart/cosmopolitan.git synced 2025-05-25 14:52:28 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 1

Fix madvise() on Windows

Browse source
This commit is contained in:
Justine Tunney 2023-12-27 22:39:41 -08:00
parent f51fd97644
commit ce0143e2a1
No known key found for this signature in database
GPG key ID: BE714B4575D6E328
5 changed files with 121 additions and 35 deletions
Download patch file Download diff file Expand all files Collapse all files

91
test/libc/calls/madvise_test.c Normal file
View file

@ -0,0 +1,91 @@
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│ vi: set et ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi │
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2023 Justine Alexandra Roberts Tunney │
│ │
│ Permission to use, copy, modify, and/or distribute this software for │
│ any purpose with or without fee is hereby granted, provided that the │
│ above copyright notice and this permission notice appear in all copies. │
│ │
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/calls/calls.h"
#include "libc/dce.h"
#include "libc/errno.h"
#include "libc/runtime/runtime.h"
#include "libc/sysv/consts/madv.h"
#include "libc/sysv/consts/map.h"
#include "libc/sysv/consts/o.h"
#include "libc/sysv/consts/prot.h"
#include "libc/testlib/testlib.h"
void SetUpOnce(void) {
testlib_enable_tmp_setup_teardown();
}
TEST(madvise, anon) {
char *p;
ASSERT_NE(MAP_FAILED, (p = mmap(0, FRAMESIZE, PROT_READ | PROT_WRITE,
MAP_PRIVATE | MAP_ANONYMOUS, -1, 0)));
ASSERT_SYS(0, 0, madvise(p, FRAMESIZE, MADV_WILLNEED));
ASSERT_SYS(0, 0, munmap(p, FRAMESIZE));
}
TEST(madvise, file) {
char *p;
ASSERT_SYS(0, 3, creat("foo.dat", 0644));
ASSERT_SYS(0, 0, ftruncate(3, FRAMESIZE));
ASSERT_SYS(0, 0, close(3));
ASSERT_SYS(0, 3, open("foo.dat", O_RDWR));
ASSERT_NE(MAP_FAILED, (p = mmap(0, FRAMESIZE, PROT_READ | PROT_WRITE,
MAP_PRIVATE, 3, 0)));
ASSERT_SYS(0, 0, madvise(p, FRAMESIZE, MADV_WILLNEED));
ASSERT_SYS(0, 0, munmap(p, FRAMESIZE));
ASSERT_SYS(0, 0, close(3));
}
TEST(madvise, short) {
char *p;
ASSERT_NE(MAP_FAILED, (p = mmap(0, FRAMESIZE, PROT_READ | PROT_WRITE,
MAP_PRIVATE | MAP_ANONYMOUS, -1, 0)));
ASSERT_SYS(0, 0, madvise(p, FRAMESIZE - 1, MADV_WILLNEED));
ASSERT_SYS(0, 0, munmap(p, FRAMESIZE));
}
TEST(madvise, subPages) {
char *p;
ASSERT_NE(MAP_FAILED, (p = mmap(0, FRAMESIZE, PROT_READ | PROT_WRITE,
MAP_PRIVATE | MAP_ANONYMOUS, -1, 0)));
ASSERT_SYS(0, 0, madvise(p + 4096, FRAMESIZE - 4096, MADV_WILLNEED));
ASSERT_SYS(0, 0, munmap(p, FRAMESIZE));
}
TEST(madvise, misalign) {
char *p;
if (!IsLinux()) return; // most platforms don't care
ASSERT_NE(MAP_FAILED, (p = mmap(0, FRAMESIZE, PROT_READ | PROT_WRITE,
MAP_PRIVATE | MAP_ANONYMOUS, -1, 0)));
ASSERT_SYS(EINVAL, -1, madvise(p + 1, FRAMESIZE - 1, MADV_WILLNEED));
ASSERT_SYS(0, 0, munmap(p, FRAMESIZE));
}
TEST(madvise, badAdvice) {
char *p;
ASSERT_NE(MAP_FAILED, (p = mmap(0, FRAMESIZE, PROT_READ | PROT_WRITE,
MAP_PRIVATE | MAP_ANONYMOUS, -1, 0)));
ASSERT_SYS(EINVAL, -1, madvise(p, FRAMESIZE, 127));
ASSERT_SYS(0, 0, munmap(p, FRAMESIZE));
}
TEST(madvise, missingMemory) {
if (!IsLinux()) return;
ASSERT_SYS(ENOMEM, -1,
madvise((char *)0x83483838000, FRAMESIZE, MADV_WILLNEED));
}