mirror of
https://github.com/RGBCube/serenity
synced 2025-07-08 02:07:35 +00:00
6bbd2ebf83
Previously, TLS data was always zero-initialized. To support initializing the values of TLS data, sys$allocate_tls now receives a buffer with the desired initial data, and copies it to the master TLS region of the process. The DynamicLinker gathers the initial TLS image and passes it to sys$allocate_tls. We also now require the size passed to sys$allocate_tls to be page-aligned, to make things easier. Note that this doesn't waste memory as the TLS data has to be allocated in separate pages anyway.
45 lines
1.2 KiB
C
45 lines
1.2 KiB
C
/*
|
|
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <sys/cdefs.h>
|
|
#include <sys/types.h>
|
|
|
|
#define MAP_FILE 0x00
|
|
#define MAP_SHARED 0x01
|
|
#define MAP_PRIVATE 0x02
|
|
#define MAP_FIXED 0x10
|
|
#define MAP_ANONYMOUS 0x20
|
|
#define MAP_ANON MAP_ANONYMOUS
|
|
#define MAP_STACK 0x40
|
|
#define MAP_NORESERVE 0x80
|
|
#define MAP_RANDOMIZED 0x100
|
|
|
|
#define PROT_READ 0x1
|
|
#define PROT_WRITE 0x2
|
|
#define PROT_EXEC 0x4
|
|
#define PROT_NONE 0x0
|
|
|
|
#define MAP_FAILED ((void*)-1)
|
|
|
|
#define MADV_SET_VOLATILE 0x100
|
|
#define MADV_SET_NONVOLATILE 0x200
|
|
#define MADV_GET_VOLATILE 0x400
|
|
|
|
__BEGIN_DECLS
|
|
|
|
void* mmap(void* addr, size_t, int prot, int flags, int fd, off_t);
|
|
void* mmap_with_name(void* addr, size_t, int prot, int flags, int fd, off_t, const char* name);
|
|
void* serenity_mmap(void* addr, size_t, int prot, int flags, int fd, off_t, size_t alignment, const char* name);
|
|
void* mremap(void* old_address, size_t old_size, size_t new_size, int flags);
|
|
int munmap(void*, size_t);
|
|
int mprotect(void*, size_t, int prot);
|
|
int set_mmap_name(void*, size_t, const char*);
|
|
int madvise(void*, size_t, int advice);
|
|
void* allocate_tls(const char* initial_data, size_t);
|
|
|
|
__END_DECLS
|