mirror of
https://github.com/RGBCube/serenity
synced 2025-10-31 01:32:45 +00:00
1e90a3a542
Making userspace provide a global string ID was silly, and made the API extremely difficult to use correctly in a global profiling context. Instead, simply make the kernel do the string ID allocation for us. This also allows us to convert the string storage to a Vector in the kernel (and an array in the JSON profile data.)
137 lines
4.1 KiB
C
137 lines
4.1 KiB
C
/*
|
|
* Copyright (c) 2018-2021, Andreas Kling <kling@serenityos.org>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <stdio.h>
|
|
#include <sys/cdefs.h>
|
|
#include <sys/types.h>
|
|
#include <time.h>
|
|
#include <unistd.h>
|
|
|
|
__BEGIN_DECLS
|
|
|
|
int disown(pid_t);
|
|
|
|
int module_load(const char* path, size_t path_length);
|
|
int module_unload(const char* name, size_t name_length);
|
|
|
|
int profiling_enable(pid_t, uint64_t);
|
|
int profiling_disable(pid_t);
|
|
int profiling_free_buffer(pid_t);
|
|
|
|
#define THREAD_PRIORITY_MIN 1
|
|
#define THREAD_PRIORITY_LOW 10
|
|
#define THREAD_PRIORITY_NORMAL 30
|
|
#define THREAD_PRIORITY_HIGH 50
|
|
#define THREAD_PRIORITY_MAX 99
|
|
|
|
#define _FUTEX_OP_SHIFT_OP 28
|
|
#define _FUTEX_OP_MASK_OP 0xf
|
|
#define _FUTEX_OP_SHIFT_CMP 24
|
|
#define _FUTEX_OP_MASK_CMP 0xf
|
|
#define _FUTEX_OP_SHIFT_OP_ARG 12
|
|
#define _FUTEX_OP_MASK_OP_ARG 0xfff
|
|
#define _FUTEX_OP_SHIFT_CMP_ARG 0
|
|
#define _FUTEX_OP_MASK_CMP_ARG 0xfff
|
|
|
|
#define FUTEX_OP(op, op_arg, cmp, cmp_arg) \
|
|
((((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))
|
|
|
|
#define FUTEX_OP_SET 0
|
|
#define FUTEX_OP_ADD 1
|
|
#define FUTEX_OP_OR 2
|
|
#define FUTEX_OP_ANDN 3
|
|
#define FUTEX_OP_XOR 4
|
|
#define FUTEX_OP_ARG_SHIFT 8
|
|
|
|
#define FUTEX_OP_CMP_EQ 0
|
|
#define FUTEX_OP_CMP_NE 1
|
|
#define FUTEX_OP_CMP_LT 2
|
|
#define FUTEX_OP_CMP_LE 3
|
|
#define FUTEX_OP_CMP_GT 4
|
|
#define FUTEX_OP_CMP_GE 5
|
|
|
|
#define FUTEX_WAIT 1
|
|
#define FUTEX_WAKE 2
|
|
|
|
#define FUTEX_REQUEUE 3
|
|
#define FUTEX_CMP_REQUEUE 4
|
|
#define FUTEX_WAKE_OP 5
|
|
#define FUTEX_WAIT_BITSET 9
|
|
#define FUTEX_WAKE_BITSET 10
|
|
|
|
#define FUTEX_PRIVATE_FLAG (1 << 7)
|
|
#define FUTEX_CLOCK_REALTIME (1 << 8)
|
|
#define FUTEX_CMD_MASK ~(FUTEX_PRIVATE_FLAG | FUTEX_CLOCK_REALTIME)
|
|
|
|
#define FUTEX_BITSET_MATCH_ANY 0xffffffff
|
|
|
|
int futex(uint32_t* userspace_address, int futex_op, uint32_t value, const struct timespec* timeout, uint32_t* userspace_address2, uint32_t value3);
|
|
|
|
static ALWAYS_INLINE int futex_wait(uint32_t* userspace_address, uint32_t value, const struct timespec* abstime, int clockid)
|
|
{
|
|
int op;
|
|
|
|
if (abstime) {
|
|
// NOTE: FUTEX_WAIT takes a relative timeout, so use FUTEX_WAIT_BITSET instead!
|
|
op = FUTEX_WAIT_BITSET | FUTEX_PRIVATE_FLAG;
|
|
if (clockid == CLOCK_REALTIME || clockid == CLOCK_REALTIME_COARSE)
|
|
op |= FUTEX_CLOCK_REALTIME;
|
|
} else {
|
|
op = FUTEX_WAIT | FUTEX_PRIVATE_FLAG;
|
|
}
|
|
return futex(userspace_address, op, value, abstime, nullptr, FUTEX_BITSET_MATCH_ANY);
|
|
}
|
|
|
|
static ALWAYS_INLINE int futex_wake(uint32_t* userspace_address, uint32_t count)
|
|
{
|
|
return futex(userspace_address, FUTEX_WAKE | FUTEX_PRIVATE_FLAG, count, NULL, NULL, 0);
|
|
}
|
|
|
|
#define PURGE_ALL_VOLATILE 0x1
|
|
#define PURGE_ALL_CLEAN_INODE 0x2
|
|
|
|
int purge(int mode);
|
|
|
|
enum {
|
|
PERF_EVENT_SAMPLE = 1,
|
|
PERF_EVENT_MALLOC = 2,
|
|
PERF_EVENT_FREE = 4,
|
|
PERF_EVENT_MMAP = 8,
|
|
PERF_EVENT_MUNMAP = 16,
|
|
PERF_EVENT_PROCESS_CREATE = 32,
|
|
PERF_EVENT_PROCESS_EXEC = 64,
|
|
PERF_EVENT_PROCESS_EXIT = 128,
|
|
PERF_EVENT_THREAD_CREATE = 256,
|
|
PERF_EVENT_THREAD_EXIT = 512,
|
|
PERF_EVENT_CONTEXT_SWITCH = 1024,
|
|
PERF_EVENT_KMALLOC = 2048,
|
|
PERF_EVENT_KFREE = 4096,
|
|
PERF_EVENT_PAGE_FAULT = 8192,
|
|
PERF_EVENT_SYSCALL = 16384,
|
|
PERF_EVENT_SIGNPOST = 32768,
|
|
};
|
|
|
|
#define PERF_EVENT_MASK_ALL (~0ull)
|
|
|
|
int perf_event(int type, uintptr_t arg1, uintptr_t arg2);
|
|
int perf_register_string(char const* string, size_t string_length);
|
|
|
|
int get_stack_bounds(uintptr_t* user_stack_base, size_t* user_stack_size);
|
|
|
|
int anon_create(size_t size, int options);
|
|
|
|
int serenity_readlink(const char* path, size_t path_length, char* buffer, size_t buffer_size);
|
|
|
|
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);
|
|
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);
|
|
|
|
uint16_t internet_checksum(const void* ptr, size_t count);
|
|
|
|
int emuctl(uintptr_t command, uintptr_t arg0, uintptr_t arg1);
|
|
|
|
__END_DECLS
|