我使用 LSB SDK 构建了一个测试 ELF 程序(请注意,我的问题并非特定于 LSB):
$ /opt/lsb/bin/lsbcc tst.c
$ ls -l a.out
-rwxr-xr-x 1 math math 10791 2009-10-13 20:13 a.out
$ file a.out
a.out: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.15, not stripped
但我无法启动它(是的,我向你保证文件在目录中......):
$ ./a.out
bash: ./a.out: No such file or directory
$ uname -a
Linux math 2.6.28-15-generic #52-Ubuntu SMP Wed Sep 9 10:48:52 UTC 2009 x86_64 GNU/Linux
我认为有一个 ELF 依赖项不满足,但我不知道如何找到它。是否有类似于 ldd 的库工具可用于查找丢失的链接?
我认为这与 2.6.15/2.6.28-15 的差异无关,因为 LSB 编译器正在工作:
$ file /opt/lsb/bin/lsbcc
/opt/lsb/bin/lsbcc: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.4, not stripped
以防万一,这里是 a.out 的 ELF 动态部分:
0x0000000000000001 (NEEDED) Shared library: [libpthread.so.0]
0x0000000000000001 (NEEDED) Shared library: [libm.so.6]
0x0000000000000001 (NEEDED) Shared library: [libc.so.6]
0x000000000000000c (INIT) 0x400428
0x000000000000000d (FINI) 0x400638
0x0000000000000004 (HASH) 0x400278
0x0000000000000005 (STRTAB) 0x400350
0x0000000000000006 (SYMTAB) 0x4002a8
0x000000000000000a (STRSZ) 121 (bytes)
0x000000000000000b (SYMENT) 24 (bytes)
0x0000000000000015 (DEBUG) 0x0
0x0000000000000003 (PLTGOT) 0x600fe8
0x0000000000000002 (PLTRELSZ) 24 (bytes)
0x0000000000000014 (PLTREL) RELA
0x0000000000000017 (JMPREL) 0x400410
0x0000000000000007 (RELA) 0x4003f8
0x0000000000000008 (RELASZ) 24 (bytes)
0x0000000000000009 (RELAENT) 24 (bytes)
0x000000006ffffffe (VERNEED) 0x4003d8
0x000000006fffffff (VERNEEDNUM) 1
0x000000006ffffff0 (VERSYM) 0x4003ca
0x0000000000000000 (NULL) 0x0