命令strip可以去掉elf文件中“.symtab”，但不会去掉“.dynsym”。/lib里的共享对象库.so文件在使用nm时提示no symbol是因为被strip了。所以需要查看动态符号表“.dynsym”，加上-D：usr@usrpc:~$nm -Do /lib/*.so.类似的命令还有：readelf --symbols *.so.objdump -T *.so.
当输出显示"nosymbols"时,首先要确认目标文件是否经过strip处理。建议在构建时保留调试信息,或在发布版本中建立符号文件的目录索引 动态库中的符号可见性异常,往往源于编译阶段的-fvisibility设置。使用nm检查时注意符号类型字段中大写’S’(隐藏符号)和小写’s’的区分 在ARM交叉编译环境中,需注意目标文件格式兼容性,使...
Print both value and size of defined symbols for the"bsd"output style. This option has no effect for object formats that do not record symbol sizes, unless--size-sortis also used in which case a calculated size is displayed. -s
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This option has no effect for object formats that do not record symbol sizes, unless --size-sort is also used in which case a calculated size binutils-2.23.1 Last change: 2012-11-13 4 GNU Development Tools NM(1) is displayed. -s --print-armap When listing symbols from archive members...
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process_flags.bss_nsect = NO_SECT; process_flags.nlibs = 0; process_flags.lib_names = NULL;nsyms = lto_get_nsyms(ofile->lto); symbols = allocate(sizeof(struct symbol) * nsyms);nsymbols = 0; for(i = 0; i < nsyms; i++){ symbol.name = lto_symbol_name(ofile->lto, i)...
Vis= Symbols can be default, protected, hidden or internal. Ndx= The section number the symbol is in. ABS means absolute: not adjusted to any section address's relocation Name= symbol name references: http://stackoverflow.com/questions/9961473/nm-vs-readelf-s ...
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