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133 lines
3.9 KiB
C
133 lines
3.9 KiB
C
/*
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* Copyright (c) 2018-2021, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <stdio.h>
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#include <sys/cdefs.h>
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#include <sys/types.h>
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#include <time.h>
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#include <unistd.h>
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__BEGIN_DECLS
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int disown(pid_t);
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int module_load(const char* path, size_t path_length);
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int module_unload(const char* name, size_t name_length);
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int profiling_enable(pid_t, uint64_t);
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int profiling_disable(pid_t);
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int profiling_free_buffer(pid_t);
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#define THREAD_PRIORITY_MIN 1
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#define THREAD_PRIORITY_LOW 10
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#define THREAD_PRIORITY_NORMAL 30
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#define THREAD_PRIORITY_HIGH 50
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#define THREAD_PRIORITY_MAX 99
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#define _FUTEX_OP_SHIFT_OP 28
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#define _FUTEX_OP_MASK_OP 0xf
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#define _FUTEX_OP_SHIFT_CMP 24
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#define _FUTEX_OP_MASK_CMP 0xf
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#define _FUTEX_OP_SHIFT_OP_ARG 12
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#define _FUTEX_OP_MASK_OP_ARG 0xfff
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#define _FUTEX_OP_SHIFT_CMP_ARG 0
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#define _FUTEX_OP_MASK_CMP_ARG 0xfff
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#define FUTEX_OP(op, op_arg, cmp, cmp_arg) \
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((((op)&_FUTEX_OP_MASK_OP) << _FUTEX_OP_SHIFT_OP) | (((cmp)&_FUTEX_OP_MASK_CMP) << _FUTEX_OP_SHIFT_CMP) | (((op_arg)&_FUTEX_OP_MASK_OP_ARG) << _FUTEX_OP_SHIFT_OP_ARG) | (((cmp_arg)&_FUTEX_OP_MASK_CMP_ARG) << _FUTEX_OP_SHIFT_CMP_ARG))
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#define FUTEX_OP_SET 0
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#define FUTEX_OP_ADD 1
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#define FUTEX_OP_OR 2
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#define FUTEX_OP_ANDN 3
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#define FUTEX_OP_XOR 4
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#define FUTEX_OP_ARG_SHIFT 8
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#define FUTEX_OP_CMP_EQ 0
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#define FUTEX_OP_CMP_NE 1
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#define FUTEX_OP_CMP_LT 2
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#define FUTEX_OP_CMP_LE 3
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#define FUTEX_OP_CMP_GT 4
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#define FUTEX_OP_CMP_GE 5
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#define FUTEX_WAIT 1
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#define FUTEX_WAKE 2
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#define FUTEX_REQUEUE 3
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#define FUTEX_CMP_REQUEUE 4
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#define FUTEX_WAKE_OP 5
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#define FUTEX_WAIT_BITSET 9
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#define FUTEX_WAKE_BITSET 10
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#define FUTEX_PRIVATE_FLAG (1 << 7)
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#define FUTEX_CLOCK_REALTIME (1 << 8)
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#define FUTEX_CMD_MASK ~(FUTEX_PRIVATE_FLAG | FUTEX_CLOCK_REALTIME)
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#define FUTEX_BITSET_MATCH_ANY 0xffffffff
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int futex(uint32_t* userspace_address, int futex_op, uint32_t value, const struct timespec* timeout, uint32_t* userspace_address2, uint32_t value3);
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static ALWAYS_INLINE int futex_wait(uint32_t* userspace_address, uint32_t value, const struct timespec* abstime, int clockid)
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{
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int op;
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if (abstime) {
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// NOTE: FUTEX_WAIT takes a relative timeout, so use FUTEX_WAIT_BITSET instead!
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op = FUTEX_WAIT_BITSET | FUTEX_PRIVATE_FLAG;
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if (clockid == CLOCK_REALTIME || clockid == CLOCK_REALTIME_COARSE)
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op |= FUTEX_CLOCK_REALTIME;
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} else {
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op = FUTEX_WAIT | FUTEX_PRIVATE_FLAG;
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}
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return futex(userspace_address, op, value, abstime, nullptr, FUTEX_BITSET_MATCH_ANY);
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}
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static ALWAYS_INLINE int futex_wake(uint32_t* userspace_address, uint32_t count)
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{
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return futex(userspace_address, FUTEX_WAKE | FUTEX_PRIVATE_FLAG, count, NULL, NULL, 0);
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}
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#define PURGE_ALL_VOLATILE 0x1
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#define PURGE_ALL_CLEAN_INODE 0x2
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int purge(int mode);
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enum {
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PERF_EVENT_SAMPLE = 1,
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PERF_EVENT_MALLOC = 2,
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PERF_EVENT_FREE = 4,
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PERF_EVENT_MMAP = 8,
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PERF_EVENT_MUNMAP = 16,
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PERF_EVENT_PROCESS_CREATE = 32,
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PERF_EVENT_PROCESS_EXEC = 64,
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PERF_EVENT_PROCESS_EXIT = 128,
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PERF_EVENT_THREAD_CREATE = 256,
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PERF_EVENT_THREAD_EXIT = 512,
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PERF_EVENT_CONTEXT_SWITCH = 1024,
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PERF_EVENT_KMALLOC = 2048,
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PERF_EVENT_KFREE = 4096,
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PERF_EVENT_PAGE_FAULT = 8192,
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};
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#define PERF_EVENT_MASK_ALL (~0ull)
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int perf_event(int type, uintptr_t arg1, uintptr_t arg2);
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int get_stack_bounds(uintptr_t* user_stack_base, size_t* user_stack_size);
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int anon_create(size_t size, int options);
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int serenity_readlink(const char* path, size_t path_length, char* buffer, size_t buffer_size);
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int getkeymap(char* name_buffer, size_t name_buffer_size, uint32_t* map, uint32_t* shift_map, uint32_t* alt_map, uint32_t* altgr_map, uint32_t* shift_altgr_map);
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int setkeymap(const char* name, const uint32_t* map, uint32_t* const shift_map, const uint32_t* alt_map, const uint32_t* altgr_map, const uint32_t* shift_altgr_map);
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uint16_t internet_checksum(const void* ptr, size_t count);
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__END_DECLS
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