jcs.org
Serenity Operating System
1/*
2 * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright notice, this
9 * list of conditions and the following disclaimer.
10 *
11 * 2. Redistributions in binary form must reproduce the above copyright notice,
12 * this list of conditions and the following disclaimer in the documentation
13 * and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
16 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
18 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
21 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
22 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
23 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27#include <Kernel/Syscall.h>
28#include <errno.h>
29#include <serenity.h>
30
31extern "C" {
32
33int module_load(const char* path, size_t path_length)
34{
35 int rc = syscall(SC_module_load, path, path_length);
36 __RETURN_WITH_ERRNO(rc, rc, -1);
37}
38
39int module_unload(const char* name, size_t name_length)
40{
41 int rc = syscall(SC_module_unload, name, name_length);
42 __RETURN_WITH_ERRNO(rc, rc, -1);
43}
44
45int profiling_enable(pid_t pid)
46{
47 int rc = syscall(SC_profiling_enable, pid);
48 __RETURN_WITH_ERRNO(rc, rc, -1);
49}
50
51int profiling_disable(pid_t pid)
52{
53 int rc = syscall(SC_profiling_disable, pid);
54 __RETURN_WITH_ERRNO(rc, rc, -1);
55}
56
57int set_thread_boost(int tid, int amount)
58{
59 int rc = syscall(SC_set_thread_boost, tid, amount);
60 __RETURN_WITH_ERRNO(rc, rc, -1);
61}
62
63int set_process_boost(int tid, int amount)
64{
65 int rc = syscall(SC_set_process_boost, tid, amount);
66 __RETURN_WITH_ERRNO(rc, rc, -1);
67}
68
69int futex(int32_t* userspace_address, int futex_op, int32_t value, const struct timespec* timeout)
70{
71 Syscall::SC_futex_params params { userspace_address, futex_op, value, timeout };
72 int rc = syscall(SC_futex, ¶ms);
73 __RETURN_WITH_ERRNO(rc, rc, -1);
74}
75
76int purge(int mode)
77{
78 int rc = syscall(SC_purge, mode);
79 __RETURN_WITH_ERRNO(rc, rc, -1);
80}
81
82int perf_event(int type, uintptr_t arg1, FlatPtr arg2)
83{
84 int rc = syscall(SC_perf_event, type, arg1, arg2);
85 __RETURN_WITH_ERRNO(rc, rc, -1);
86}
87
88void* shbuf_get(int shbuf_id, size_t* size)
89{
90 int rc = syscall(SC_shbuf_get, shbuf_id, size);
91 if (rc < 0 && -rc < EMAXERRNO) {
92 errno = -rc;
93 return (void*)-1;
94 }
95 return (void*)rc;
96}
97
98int shbuf_release(int shbuf_id)
99{
100 int rc = syscall(SC_shbuf_release, shbuf_id);
101 __RETURN_WITH_ERRNO(rc, rc, -1);
102}
103
104int shbuf_seal(int shbuf_id)
105{
106 int rc = syscall(SC_shbuf_seal, shbuf_id);
107 __RETURN_WITH_ERRNO(rc, rc, -1);
108}
109
110int shbuf_create(int size, void** buffer)
111{
112 int rc = syscall(SC_shbuf_create, size, buffer);
113 __RETURN_WITH_ERRNO(rc, rc, -1);
114}
115
116int shbuf_allow_pid(int shbuf_id, pid_t peer_pid)
117{
118 int rc = syscall(SC_shbuf_allow_pid, shbuf_id, peer_pid);
119 __RETURN_WITH_ERRNO(rc, rc, -1);
120}
121
122int shbuf_allow_all(int shbuf_id)
123{
124 int rc = syscall(SC_shbuf_allow_all, shbuf_id);
125 __RETURN_WITH_ERRNO(rc, rc, -1);
126}
127
128int get_stack_bounds(uintptr_t* user_stack_base, size_t* user_stack_size)
129{
130 int rc = syscall(SC_get_stack_bounds, user_stack_base, user_stack_size);
131 __RETURN_WITH_ERRNO(rc, rc, -1);
132}
133
134}