📄 sample_test.r
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ELF Header: Magic: 7f 45 4c 46 01 01 01 00 00 00 00 00 00 00 00 00 Class: ELF32 Data: 2's complement, little endian Version: 1 (current) OS/ABI: UNIX - System V ABI Version: 0 Type: EXEC (Executable file) Machine: Intel 80386 Version: 0x1 Entry point address: 0x8048278 Start of program headers: 52 (bytes into file) Start of section headers: 19248 (bytes into file) Flags: 0x0 Size of this header: 52 (bytes) Size of program headers: 32 (bytes) Number of program headers: 6 Size of section headers: 40 (bytes) Number of section headers: 34 Section header string table index: 31Section Headers: [Nr] Name Type Addr Off Size ES Flg Lk Inf Al [ 0] NULL 00000000 000000 000000 00 0 0 0 [ 1] .interp PROGBITS 080480f4 0000f4 000013 00 A 0 0 1 [ 2] .note.ABI-tag NOTE 08048108 000108 000020 00 A 0 0 4 [ 3] .hash HASH 08048128 000128 000028 04 A 4 0 4 [ 4] .dynsym DYNSYM 08048150 000150 000050 10 A 5 1 4 [ 5] .dynstr STRTAB 080481a0 0001a0 00004c 00 A 0 0 1 [ 6] .gnu.version VERSYM 080481ec 0001ec 00000a 02 A 4 0 2 [ 7] .gnu.version_r VERNEED 080481f8 0001f8 000020 00 A 5 1 4 [ 8] .rel.dyn REL 08048218 000218 000008 08 A 4 0 4 [ 9] .rel.plt REL 08048220 000220 000010 08 A 4 b 4 [10] .init PROGBITS 08048230 000230 000017 00 AX 0 0 4 [11] .plt PROGBITS 08048248 000248 000030 04 AX 0 0 4 [12] .text PROGBITS 08048278 000278 00019c 00 AX 0 0 4 [13] .fini PROGBITS 08048414 000414 00001b 00 AX 0 0 4 [14] .rodata PROGBITS 08048440 000440 00007e 00 A 0 0 32 [15] .eh_frame PROGBITS 080484c0 0004c0 000004 00 A 0 0 4 [16] .data PROGBITS 080494c4 0004c4 00000c 00 WA 0 0 4 [17] .dynamic DYNAMIC 080494d0 0004d0 0000c8 08 WA 5 0 4 [18] .ctors PROGBITS 08049598 000598 000008 00 WA 0 0 4 [19] .dtors PROGBITS 080495a0 0005a0 000008 00 WA 0 0 4 [20] .jcr PROGBITS 080495a8 0005a8 000004 00 WA 0 0 4 [21] .got PROGBITS 080495ac 0005ac 000018 04 WA 0 0 4 [22] .bss NOBITS 080495c4 0005c4 000004 00 WA 0 0 4 [23] .comment PROGBITS 00000000 0005c4 000198 00 0 0 1 [24] .debug_aranges PROGBITS 00000000 000760 0000d8 00 0 0 8 [25] .debug_pubnames PROGBITS 00000000 000838 000081 00 0 0 1 [26] .debug_info PROGBITS 00000000 0008b9 002d62 00 0 0 1 [27] .debug_abbrev PROGBITS 00000000 00361b 0004cd 00 0 0 1 [28] .debug_line PROGBITS 00000000 003ae8 000548 00 0 0 1 [29] .debug_frame PROGBITS 00000000 004030 0000a8 00 0 0 4 [30] .debug_str PROGBITS 00000000 0040d8 00092b 01 MS 0 0 1 [31] .shstrtab STRTAB 00000000 004a03 00012b 00 0 0 1 [32] .symtab SYMTAB 00000000 005080 000700 10 33 56 4 [33] .strtab STRTAB 00000000 005780 000415 00 0 0 1Key to Flags: W (write), A (alloc), X (execute), M (merge), S (strings) I (info), L (link order), G (group), x (unknown) O (extra OS processing required) o (OS specific), p (processor specific)Program Headers: Type Offset VirtAddr PhysAddr FileSiz MemSiz Flg Align PHDR 0x000034 0x08048034 0x08048034 0x000c0 0x000c0 R E 0x4 INTERP 0x0000f4 0x080480f4 0x080480f4 0x00013 0x00013 R 0x1 [Requesting program interpreter: /lib/ld-linux.so.2] LOAD 0x000000 0x08048000 0x08048000 0x004c4 0x004c4 R E 0x1000 LOAD 0x0004c4 0x080494c4 0x080494c4 0x00100 0x00104 RW 0x1000 DYNAMIC 0x0004d0 0x080494d0 0x080494d0 0x000c8 0x000c8 RW 0x4 NOTE 0x000108 0x08048108 0x08048108 0x00020 0x00020 R 0x4 Section to Segment mapping: Segment Sections... 00 01 .interp 02 .interp .note.ABI-tag .hash .dynsym .dynstr .gnu.version .gnu.version_r .rel.dyn .rel.plt .init .plt .text .fini .rodata .eh_frame 03 .data .dynamic .ctors .dtors .jcr .got .bss 04 .dynamic 05 .note.ABI-tag Dynamic segment at offset 0x4d0 contains 20 entries: Tag Type Name/Value 0x00000001 (NEEDED) Shared library: [libc.so.6] 0x0000000c (INIT) 0x8048230 0x0000000d (FINI) 0x8048414 0x00000004 (HASH) 0x8048128 0x00000005 (STRTAB) 0x80481a0 0x00000006 (SYMTAB) 0x8048150 0x0000000a (STRSZ) 76 (bytes) 0x0000000b (SYMENT) 16 (bytes) 0x00000015 (DEBUG) 0x0 0x00000003 (PLTGOT) 0x80495ac 0x00000002 (PLTRELSZ) 16 (bytes) 0x00000014 (PLTREL) REL 0x00000017 (JMPREL) 0x8048220 0x00000011 (REL) 0x8048218 0x00000012 (RELSZ) 8 (bytes) 0x00000013 (RELENT) 8 (bytes) 0x6ffffffe (VERNEED) 0x80481f8 0x6fffffff (VERNEEDNUM) 1 0x6ffffff0 (VERSYM) 0x80481ec 0x00000000 (NULL) 0x0Relocation section '.rel.dyn' at offset 0x218 contains 1 entries: Offset Info Type Sym.Value Sym. Name080495c0 00000406 R_386_GLOB_DAT 00000000 __gmon_start__Relocation section '.rel.plt' at offset 0x220 contains 2 entries: Offset Info Type Sym.Value Sym. Name080495b8 00000107 R_386_JUMP_SLOT 08048258 __libc_start_main080495bc 00000207 R_386_JUMP_SLOT 08048268 printfThere are no unwind sections in this file.Symbol table '.dynsym' contains 5 entries: Num: Value Size Type Bind Vis Ndx Name 0: 00000000 0 NOTYPE LOCAL DEFAULT UND 1: 08048258 251 FUNC GLOBAL DEFAULT UND __libc_start_main@GLIBC_2.0 (2) 2: 08048268 57 FUNC GLOBAL DEFAULT UND printf@GLIBC_2.0 (2) 3: 08048444 4 OBJECT GLOBAL DEFAULT 14 _IO_stdin_used 4: 00000000 0 NOTYPE WEAK DEFAULT UND __gmon_start__Symbol table '.symtab' contains 112 entries: Num: Value Size Type Bind Vis Ndx Name 0: 00000000 0 NOTYPE LOCAL DEFAULT UND 1: 080480f4 0 SECTION LOCAL DEFAULT 1 2: 08048108 0 SECTION LOCAL DEFAULT 2 3: 08048128 0 SECTION LOCAL DEFAULT 3 4: 08048150 0 SECTION LOCAL DEFAULT 4 5: 080481a0 0 SECTION LOCAL DEFAULT 5 6: 080481ec 0 SECTION LOCAL DEFAULT 6 7: 080481f8 0 SECTION LOCAL DEFAULT 7 8: 08048218 0 SECTION LOCAL DEFAULT 8 9: 08048220 0 SECTION LOCAL DEFAULT 9 10: 08048230 0 SECTION LOCAL DEFAULT 10 11: 08048248 0 SECTION LOCAL DEFAULT 11 12: 08048278 0 SECTION LOCAL DEFAULT 12 13: 08048414 0 SECTION LOCAL DEFAULT 13 14: 08048440 0 SECTION LOCAL DEFAULT 14 15: 080484c0 0 SECTION LOCAL DEFAULT 15 16: 080494c4 0 SECTION LOCAL DEFAULT 16 17: 080494d0 0 SECTION LOCAL DEFAULT 17 18: 08049598 0 SECTION LOCAL DEFAULT 18 19: 080495a0 0 SECTION LOCAL DEFAULT 19 20: 080495a8 0 SECTION LOCAL DEFAULT 20 21: 080495ac 0 SECTION LOCAL DEFAULT 21 22: 080495c4 0 SECTION LOCAL DEFAULT 22 23: 00000000 0 SECTION LOCAL DEFAULT 23 24: 00000000 0 SECTION LOCAL DEFAULT 24 25: 00000000 0 SECTION LOCAL DEFAULT 25 26: 00000000 0 SECTION LOCAL DEFAULT 26 27: 00000000 0 SECTION LOCAL DEFAULT 27 28: 00000000 0 SECTION LOCAL DEFAULT 28 29: 00000000 0 SECTION LOCAL DEFAULT 29 30: 00000000 0 SECTION LOCAL DEFAULT 30 31: 00000000 0 SECTION LOCAL DEFAULT 31 32: 00000000 0 SECTION LOCAL DEFAULT 32 33: 00000000 0 SECTION LOCAL DEFAULT 33 34: 00000000 0 FILE LOCAL DEFAULT ABS <command line> 35: 00000000 0 FILE LOCAL DEFAULT ABS /usr/src/build/231499-i38 36: 00000000 0 FILE LOCAL DEFAULT ABS <command line> 37: 00000000 0 FILE LOCAL DEFAULT ABS <built-in> 38: 00000000 0 FILE LOCAL DEFAULT ABS abi-note.S 39: 00000000 0 FILE LOCAL DEFAULT ABS /usr/src/build/231499-i38 40: 00000000 0 FILE LOCAL DEFAULT ABS abi-note.S 41: 00000000 0 FILE LOCAL DEFAULT ABS /usr/src/build/231499-i38 42: 00000000 0 FILE LOCAL DEFAULT ABS abi-note.S 43: 00000000 0 FILE LOCAL DEFAULT ABS <command line> 44: 00000000 0 FILE LOCAL DEFAULT ABS /usr/src/build/231499-i38 45: 00000000 0 FILE LOCAL DEFAULT ABS <command line> 46: 00000000 0 FILE LOCAL DEFAULT ABS <built-in> 47: 00000000 0 FILE LOCAL DEFAULT ABS abi-note.S 48: 00000000 0 FILE LOCAL DEFAULT ABS init.c 49: 00000000 0 FILE LOCAL DEFAULT ABS /usr/src/build/231499-i38 50: 00000000 0 FILE LOCAL DEFAULT ABS /usr/src/build/231499-i38 51: 00000000 0 FILE LOCAL DEFAULT ABS initfini.c 52: 00000000 0 FILE LOCAL DEFAULT ABS /usr/src/build/231499-i38 53: 00000000 0 FILE LOCAL DEFAULT ABS <command line> 54: 00000000 0 FILE LOCAL DEFAULT ABS /usr/src/build/231499-i38 55: 00000000 0 FILE LOCAL DEFAULT ABS <command line> 56: 00000000 0 FILE LOCAL DEFAULT ABS <built-in> 57: 00000000 0 FILE LOCAL DEFAULT ABS /usr/src/build/231499-i38 58: 0804829c 0 FUNC LOCAL DEFAULT 12 call_gmon_start 59: 00000000 0 FILE LOCAL DEFAULT ABS crtstuff.c 60: 08049598 0 OBJECT LOCAL DEFAULT 18 __CTOR_LIST__ 61: 080495a0 0 OBJECT LOCAL DEFAULT 19 __DTOR_LIST__ 62: 080484c0 0 OBJECT LOCAL DEFAULT 15 __EH_FRAME_BEGIN__ 63: 080495a8 0 OBJECT LOCAL DEFAULT 20 __JCR_LIST__ 64: 080494cc 0 OBJECT LOCAL DEFAULT 16 p.0 65: 080495c4 1 OBJECT LOCAL DEFAULT 22 completed.1 66: 080482c0 0 FUNC LOCAL DEFAULT 12 __do_global_dtors_aux 67: 080482fc 0 FUNC LOCAL DEFAULT 12 frame_dummy 68: 00000000 0 FILE LOCAL DEFAULT ABS crtstuff.c 69: 0804959c 0 OBJECT LOCAL DEFAULT 18 __CTOR_END__ 70: 080495a4 0 OBJECT LOCAL DEFAULT 19 __DTOR_END__ 71: 080484c0 0 OBJECT LOCAL DEFAULT 15 __FRAME_END__ 72: 080495a8 0 OBJECT LOCAL DEFAULT 20 __JCR_END__ 73: 080483f0 0 FUNC LOCAL DEFAULT 12 __do_global_ctors_aux 74: 00000000 0 FILE LOCAL DEFAULT ABS /usr/src/build/231499-i38 75: 00000000 0 FILE LOCAL DEFAULT ABS /usr/src/build/231499-i38 76: 00000000 0 FILE LOCAL DEFAULT ABS initfini.c 77: 00000000 0 FILE LOCAL DEFAULT ABS /usr/src/build/231499-i38 78: 00000000 0 FILE LOCAL DEFAULT ABS <command line> 79: 00000000 0 FILE LOCAL DEFAULT ABS /usr/src/build/231499-i38 80: 00000000 0 FILE LOCAL DEFAULT ABS <command line> 81: 00000000 0 FILE LOCAL DEFAULT ABS <built-in> 82: 00000000 0 FILE LOCAL DEFAULT ABS /usr/src/build/231499-i38 83: 00000000 0 FILE LOCAL DEFAULT ABS main.c 84: 00000000 0 FILE LOCAL DEFAULT ABS serial.c 85: 00000000 0 FILE LOCAL DEFAULT ABS net.c 86: 080494d0 0 OBJECT GLOBAL DEFAULT 17 _DYNAMIC 87: 08048440 4 OBJECT GLOBAL DEFAULT 14 _fp_hw 88: 080494c4 0 NOTYPE GLOBAL DEFAULT ABS __fini_array_end 89: 08048374 24 FUNC GLOBAL DEFAULT 12 net_test 90: 080494c8 0 OBJECT GLOBAL HIDDEN 16 __dso_handle 91: 080483bc 52 FUNC GLOBAL DEFAULT 12 __libc_csu_fini 92: 08048230 0 FUNC GLOBAL DEFAULT 10 _init 93: 08048278 0 FUNC GLOBAL DEFAULT 12 _start 94: 080494c4 0 NOTYPE GLOBAL DEFAULT ABS __fini_array_start 95: 0804838c 48 FUNC GLOBAL DEFAULT 12 __libc_csu_init 96: 080495c4 0 NOTYPE GLOBAL DEFAULT ABS __bss_start 97: 08048328 49 FUNC GLOBAL DEFAULT 12 main 98: 08048258 251 FUNC GLOBAL DEFAULT UND __libc_start_main@@GLIBC_ 99: 080494c4 0 NOTYPE GLOBAL DEFAULT ABS __init_array_end 100: 0804835c 24 FUNC GLOBAL DEFAULT 12 serial_test 101: 080494c4 0 NOTYPE WEAK DEFAULT 16 data_start 102: 08048268 57 FUNC GLOBAL DEFAULT UND printf@@GLIBC_2.0 103: 08048414 0 FUNC GLOBAL DEFAULT 13 _fini 104: 080495c4 0 NOTYPE GLOBAL DEFAULT ABS _edata 105: 080495ac 0 OBJECT GLOBAL DEFAULT 21 _GLOBAL_OFFSET_TABLE_ 106: 080495c8 0 NOTYPE GLOBAL DEFAULT ABS _end 107: 080494c4 0 NOTYPE GLOBAL DEFAULT ABS __init_array_start 108: 08048444 4 OBJECT GLOBAL DEFAULT 14 _IO_stdin_used 109: 080494c4 0 NOTYPE GLOBAL DEFAULT 16 __data_start 110: 00000000 0 NOTYPE WEAK DEFAULT UND _Jv_RegisterClasses 111: 00000000 0 NOTYPE WEAK DEFAULT UND __gmon_start__Histogram for bucket list length (total of 3 buckets): Length Number % of total Coverage 0 0 ( 0.0%) 1 2 ( 66.7%) 50.0% 2 1 ( 33.3%) 100.0%Version symbols section '.gnu.version' contains 5 entries: Addr: 00000000080481ec Offset: 0x0001ec Link: 4 (.dynsym) 000: 0 (*local*) 2 (GLIBC_2.0) 2 (GLIBC_2.0) 1 (*global*) 004: 0 (*local*) Version needs section '.gnu.version_r' contains 1 entries: Addr: 0x00000000080481f8 Offset: 0x0001f8 Link to section: 5 (.dynstr) 000000: Version: 1 File: libc.so.6 Cnt: 1 0x0010: Name: GLIBC_2.0 Flags: none Version: 2⌨️ 快捷键说明
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