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发表于 2023-9-28 20:45:54
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本楼为最佳答案

填命令
- sh-5.1$ ls
- main main.c read read.c write write.c
- sh-5.1$ cat main.c
- #include <stdio.h>
- #include <stdlib.h>
- int main(void) {
- system("ls");
- system("cat main.c");
- system("readelf -l main");
- return 0;
- }
- sh-5.1$ gcc -m32 -g3 -Wall -o main main.c
- sh-5.1$ ./main
- main main.c read read.c write write.c
- #include <stdio.h>
- #include <stdlib.h>
- int main(void) {
- system("ls");
- system("cat main.c");
- system("readelf -l main");
- return 0;
- }
- Elf file type is DYN (Position-Independent Executable file)
- Entry point 0x1060
- There are 12 program headers, starting at offset 52
- Program Headers:
- Type Offset VirtAddr PhysAddr FileSiz MemSiz Flg Align
- PHDR 0x000034 0x00000034 0x00000034 0x00180 0x00180 R 0x4
- INTERP 0x0001b4 0x000001b4 0x000001b4 0x00013 0x00013 R 0x1
- [Requesting program interpreter: /lib/ld-linux.so.2]
- LOAD 0x000000 0x00000000 0x00000000 0x00428 0x00428 R 0x1000
- LOAD 0x001000 0x00001000 0x00001000 0x00204 0x00204 R E 0x1000
- LOAD 0x002000 0x00002000 0x00002000 0x000d4 0x000d4 R 0x1000
- LOAD 0x002ee8 0x00003ee8 0x00003ee8 0x00128 0x0012c RW 0x1000
- DYNAMIC 0x002ef0 0x00003ef0 0x00003ef0 0x000f0 0x000f0 RW 0x4
- NOTE 0x0001c8 0x000001c8 0x000001c8 0x00078 0x00078 R 0x4
- GNU_PROPERTY 0x0001ec 0x000001ec 0x000001ec 0x00034 0x00034 R 0x4
- GNU_EH_FRAME 0x002028 0x00002028 0x00002028 0x00024 0x00024 R 0x4
- GNU_STACK 0x000000 0x00000000 0x00000000 0x00000 0x00000 RW 0x10
- GNU_RELRO 0x002ee8 0x00003ee8 0x00003ee8 0x00118 0x00118 R 0x1
- Section to Segment mapping:
- Segment Sections...
- 00
- 01 .interp
- 02 .interp .note.gnu.build-id .note.gnu.property .note.ABI-tag .gnu.hash .dynsym .dynstr .gnu.version .gnu.version_r .rel.dyn .rel.plt
- 03 .init .plt .text .fini
- 04 .rodata .eh_frame_hdr .eh_frame
- 05 .init_array .fini_array .dynamic .got .got.plt .data .bss
- 06 .dynamic
- 07 .note.gnu.build-id .note.gnu.property .note.ABI-tag
- 08 .note.gnu.property
- 09 .eh_frame_hdr
- 10
- 11 .init_array .fini_array .dynamic .got
- sh-5.1$
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