You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
79 lines
2.2 KiB
79 lines
2.2 KiB
/**************************************************************************
|
|
*
|
|
* Copyright (C) 2018 Chromium.
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a
|
|
* copy of this software and associated documentation files (the "Software"),
|
|
* to deal in the Software without restriction, including without limitation
|
|
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
|
* and/or sell copies of the Software, and to permit persons to whom the
|
|
* Software is furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included
|
|
* in all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
|
|
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
|
|
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
|
|
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
|
|
* OTHER DEALINGS IN THE SOFTWARE.
|
|
*
|
|
**************************************************************************/
|
|
|
|
#include "util.h"
|
|
#include "vtest_shm.h"
|
|
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
#include <errno.h>
|
|
#include <fcntl.h>
|
|
|
|
#include <sys/syscall.h>
|
|
#include <unistd.h>
|
|
|
|
static int memfd_create(const char *name, unsigned int flags)
|
|
{
|
|
#ifdef __NR_memfd_create
|
|
return syscall(__NR_memfd_create, name, flags);
|
|
#else
|
|
return -1;
|
|
#endif
|
|
}
|
|
|
|
int vtest_new_shm(uint32_t handle, size_t size)
|
|
{
|
|
int fd, ret;
|
|
int length = snprintf(NULL, 0, "vtest-res-%u", handle);
|
|
char *str = malloc(length + 1);
|
|
snprintf(str, length + 1, "vtest-res-%u", handle);
|
|
|
|
fd = memfd_create(str, MFD_ALLOW_SEALING);
|
|
free(str);
|
|
if (fd < 0) {
|
|
return report_failed_call("memfd_create", -errno);
|
|
}
|
|
|
|
ret = ftruncate(fd, size);
|
|
if (ret < 0) {
|
|
close(fd);
|
|
return report_failed_call("ftruncate", -errno);
|
|
}
|
|
|
|
return fd;
|
|
}
|
|
|
|
int vtest_shm_check(void)
|
|
{
|
|
int mfd = memfd_create("test", MFD_ALLOW_SEALING);
|
|
|
|
if (mfd >= 0) {
|
|
close(mfd);
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|