mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2024-09-22 02:49:29 +03:00
91 lines
3.1 KiB
C++
91 lines
3.1 KiB
C++
/*
|
|
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright notice, this
|
|
* list of conditions and the following disclaimer.
|
|
*
|
|
* 2. Redistributions in binary form must reproduce the above copyright notice,
|
|
* this list of conditions and the following disclaimer in the documentation
|
|
* and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
|
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
|
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
|
|
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
|
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#include <Kernel/API/Syscall.h>
|
|
#include <errno.h>
|
|
#include <mman.h>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
|
|
extern "C" {
|
|
|
|
void* serenity_mmap(void* addr, size_t size, int prot, int flags, int fd, off_t offset, size_t alignment, const char* name)
|
|
{
|
|
Syscall::SC_mmap_params params { (u32)addr, size, alignment, prot, flags, fd, offset, { name, name ? strlen(name) : 0 } };
|
|
int rc = syscall(SC_mmap, ¶ms);
|
|
if (rc < 0 && -rc < EMAXERRNO) {
|
|
errno = -rc;
|
|
return MAP_FAILED;
|
|
}
|
|
return (void*)rc;
|
|
}
|
|
|
|
void* mmap(void* addr, size_t size, int prot, int flags, int fd, off_t offset)
|
|
{
|
|
return serenity_mmap(addr, size, prot, flags, fd, offset, PAGE_SIZE, nullptr);
|
|
}
|
|
|
|
void* mmap_with_name(void* addr, size_t size, int prot, int flags, int fd, off_t offset, const char* name)
|
|
{
|
|
return serenity_mmap(addr, size, prot, flags, fd, offset, PAGE_SIZE, name);
|
|
}
|
|
|
|
int munmap(void* addr, size_t size)
|
|
{
|
|
int rc = syscall(SC_munmap, addr, size);
|
|
__RETURN_WITH_ERRNO(rc, rc, -1);
|
|
}
|
|
|
|
int mprotect(void* addr, size_t size, int prot)
|
|
{
|
|
int rc = syscall(SC_mprotect, addr, size, prot);
|
|
__RETURN_WITH_ERRNO(rc, rc, -1);
|
|
}
|
|
|
|
int set_mmap_name(void* addr, size_t size, const char* name)
|
|
{
|
|
if (!name) {
|
|
errno = EFAULT;
|
|
return -1;
|
|
}
|
|
Syscall::SC_set_mmap_name_params params { addr, size, { name, strlen(name) } };
|
|
int rc = syscall(SC_set_mmap_name, ¶ms);
|
|
__RETURN_WITH_ERRNO(rc, rc, -1);
|
|
}
|
|
|
|
int madvise(void* address, size_t size, int advice)
|
|
{
|
|
int rc = syscall(SC_madvise, address, size, advice);
|
|
__RETURN_WITH_ERRNO(rc, rc, -1);
|
|
}
|
|
|
|
int minherit(void* address, size_t size, int inherit)
|
|
{
|
|
int rc = syscall(SC_minherit, address, size, inherit);
|
|
__RETURN_WITH_ERRNO(rc, rc, -1);
|
|
}
|
|
}
|