forked from xuos/xiuos
94 lines
3.1 KiB
C
94 lines
3.1 KiB
C
/*
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* Copyright (c) 2020 AIIT XUOS Lab
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* XiUOS is licensed under Mulan PSL v2.
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* You can use this software according to the terms and conditions of the Mulan PSL v2.
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* You may obtain a copy of Mulan PSL v2 at:
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* http://license.coscl.org.cn/MulanPSL2
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* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
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* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
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* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
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* See the Mulan PSL v2 for more details.
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*/
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/**
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* @file actracer.h
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* @brief tracer header
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* @version 3.0
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* @author AIIT XUOS Lab
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* @date 2023.08.25
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*/
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/*************************************************
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File name: actracer.h
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Description: tracer header
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Others:
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History:
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1. Date: 2023-08-28
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Author: AIIT XUOS Lab
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Modification:
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1. first version
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*************************************************/
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#pragma once
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#include <stdbool.h>
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#include <stdint.h>
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#include "actracer_mem_chunk.h"
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#include "spinlock.h"
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typedef enum {
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TRACER_INVALID = 0,
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TRACER_OWNER,
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TRACER_HARDKERNEL_AC_RESOURCE,
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TRACER_TASK_DESCRIPTOR_AC_RESOURCE,
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TRACER_SERVER_IDENTITY_AC_RESOURCE,
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TRACER_MEM_FROM_BUDDY_AC_RESOURCE,
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} tracemeta_ac_type;
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typedef uint16_t tracer_mem_chunk_idx_t;
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#define TRACEMETA_NR_DIRECT 5
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#define TRACEMETA_NR_INDIRECT 4
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#define NR_ADDR_PER_MEM_CHUNK TRACER_MEM_CHUNK_SIZE / sizeof(tracer_mem_chunk_idx_t)
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#define VFS_FILE_MAXSIZE (TRACEMETA_NR_DIRECT + (TRACEMETA_NR_INDIRECT * NR_ADDR_PER_MEM_CHUNK))
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struct TraceMeta {
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uint32_t size;
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tracemeta_ac_type type; // TRACER_OWNER, etc.
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uintptr_t reserved; // fast path to store pointer if content is a pointer
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uint16_t index;
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tracer_mem_chunk_idx_t addr[TRACEMETA_NR_DIRECT + TRACEMETA_NR_INDIRECT]; // 指向data mem_chunks, TRACER_OWNER 用于存放 dir entries, VT_FS用于存放bind
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} __attribute__((aligned(32)));
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/// @brief tag for other module to reference trace meta
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struct TraceTag {
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struct TraceMeta* meta;
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short type; // TRACER_OWNER, etc.
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};
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#define RESOURCE_NAME_SIZE 14
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struct TraceResourceEntry {
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uint16_t index;
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char name[RESOURCE_NAME_SIZE];
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};
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struct SysTracer {
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#define NR_TRACER_MEM_CHUNKS 256
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#define TRACER_MEM_CHUNK_SIZE sizeof(struct TraceMeta)
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#define BITS_MEM_CHUNK_BITMAP (NR_TRACER_MEM_CHUNKS / 32)
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uint32_t mem_chunks_bit_map[BITS_MEM_CHUNK_BITMAP];
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struct spinlock mem_chunk_bitmap_lock;
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#define NR_MAX_TRACEMETA 128
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#define BITS_TRACEMETA_BITMAP (NR_MAX_TRACEMETA / 32)
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uint32_t trace_meta_bit_map[BITS_TRACEMETA_BITMAP];
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struct spinlock trace_meta_bitmap_lock;
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struct TraceMeta trace_meta_poll[NR_MAX_TRACEMETA];
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};
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void tracer_init(void);
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extern struct SysTracer sys_tracer;
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extern struct TraceTag root_tracetag;
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struct TraceTag* const RequireRootTag();
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bool AchieveResourceTag(struct TraceTag* target, struct TraceTag* owner, char* name);
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void* AchieveResource(struct TraceTag* target);
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bool CreateResourceTag(struct TraceTag* new_tag, struct TraceTag* owner, char* name, tracemeta_ac_type type, void* p_resource);
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bool DeleteResource(struct TraceTag* target, struct TraceTag* owner);
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