1 | // SPDX-FileCopyrightText: 2023 UnionTech Software Technology Co., Ltd. |
2 | // |
3 | // SPDX-License-Identifier: GPL-3.0-or-later |
4 | |
5 | #ifndef _SHARED_EME_DUMP_H |
6 | #define _SHARED_EME_DUMP_H |
7 | #include <inttypes.h> |
8 | |
9 | #ifdef __cplusplus |
10 | extern "C" { |
11 | #endif |
12 | |
13 | #define SHARED_FILE_NAME "/tmp/emd-syscallbuf-%d-%d" |
14 | #define SHARED_SOCKET_NAME "/tmp/st2sock-%d.bin" |
15 | |
16 | #if !defined(__mips__) |
17 | #define __NR_Linux (0) |
18 | #else |
19 | #include <asm/unistd.h> |
20 | #endif |
21 | |
22 | #define SYS_init_buffers (__NR_Linux + 1000 - 7) // least magic |
23 | #define SYS_flush_buffers (__NR_Linux + 1000 - 6) |
24 | #define SYS_share_name (__NR_Linux + 1000 - 5) |
25 | #define SYS_enable_dump (__NR_Linux + 1000 - 4) |
26 | #define SYS_update_maps (__NR_Linux + 1000 - 3) |
27 | #define SYS_dump_x11 (__NR_Linux + 1000 - 2) |
28 | #define SYS_dump_dbus (__NR_Linux + 1000 - 1) |
29 | #define SHARED_BUFFER_SIZE (1024 * 1024) |
30 | #define SYSCALL_PAGE_ADDR (0x70000000) |
31 | |
32 | typedef unsigned int number_slot_t; |
33 | #define BITS_PER_SLOT (sizeof(number_slot_t) * 8) |
34 | |
35 | struct number_set { |
36 | number_slot_t *vec; |
37 | unsigned int nslots; |
38 | unsigned char not_flag; |
39 | }; |
40 | |
41 | typedef struct tagMemoryDumper { |
42 | int fd; |
43 | int pid; /* store current pid to avoid fork affect */ |
44 | int mutex; /* at least 4bytes as futex, or EINVAL */ |
45 | int syscall_count; |
46 | int size; |
47 | int current; |
48 | int page_size; |
49 | int max_stack_size; |
50 | uintptr_t stack_begin; |
51 | uintptr_t stack_end; |
52 | int max_param_size; |
53 | struct number_set syscall; |
54 | }MemoryDumper; |
55 | |
56 | #define BUFFER_HEAD(d) (char *)(d + 1) |
57 | |
58 | |
59 | unsigned char is_number_in_set(const unsigned number); |
60 | int send_cmd(int cmd, uintptr_t arg); |
61 | void lock_buffers(MemoryDumper *dumper); |
62 | void unlock_buffers(MemoryDumper *dumper); |
63 | MemoryDumper *create_memory_dumper(void); |
64 | MemoryDumper *get_memory_dumper(void); |
65 | void record_event_simple(MemoryDumper *dumper, |
66 | int event_type, const char *msg, int msg_len); |
67 | void record_syscall(MemoryDumper *dumper, |
68 | int nr, long *args, long result, void *cpu); |
69 | |
70 | #ifdef __cplusplus |
71 | } |
72 | #endif |
73 | |
74 | #endif /* end #ifndef _SHARED_EME_DUMP_H */ |
75 | |