我正在尝试在iOS应用程序中使用静态库。似乎我已经完成了所有事情，但我得到了多个“未定义的架构i386符号”错误（SO question）。我决定检查实现必要方法的位置（包含方法代码的静态库）：
#!/bin/bash
for filename in /Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/lib*.a; do
echo " $filename:"
nm "$filename" | grep getMemBufferCopy
done
在少数文件中找到了它：
MBA-Anton:StaticLibraryUsage2 asmirnov$ ./find_method
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMAArch64AsmParser.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMAArch64AsmPrinter.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMAArch64CodeGen.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMAArch64Desc.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMAArch64Disassembler.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMAArch64Info.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMAArch64Utils.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMARMAsmParser.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMARMAsmPrinter.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMARMCodeGen.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMARMDesc.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMARMDisassembler.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMARMInfo.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMAnalysis.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMAsmParser.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMAsmPrinter.a:
U __ZN4llvm12MemoryBuffer16getMemBufferCopyENS_9StringRefES1_
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMBitReader.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMBitWriter.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMCodeGen.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMCore.a:
U __ZN4llvm12MemoryBuffer16getMemBufferCopyENS_9StringRefES1_
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMCppBackendCodeGen.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMCppBackendInfo.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMDebugInfo.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMExecutionEngine.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMHexagonAsmPrinter.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMHexagonCodeGen.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMHexagonDesc.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMHexagonInfo.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMIRReader.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMInstCombine.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMInstrumentation.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMInterpreter.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMJIT.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMLTO.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMLinker.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMMC.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMMCDisassembler.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMMCJIT.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMMCParser.a:
U __ZN4llvm12MemoryBuffer16getMemBufferCopyENS_9StringRefES1_
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMMSP430AsmPrinter.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMMSP430CodeGen.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMMSP430Desc.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMMSP430Info.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMMipsAsmParser.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMMipsAsmPrinter.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMMipsCodeGen.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMMipsDesc.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMMipsDisassembler.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMMipsInfo.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMNVPTXAsmPrinter.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMNVPTXCodeGen.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMNVPTXDesc.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMNVPTXInfo.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMObjCARCOpts.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMObject.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMOption.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMPowerPCAsmParser.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMPowerPCAsmPrinter.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMPowerPCCodeGen.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMPowerPCDesc.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMPowerPCInfo.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMR600AsmPrinter.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMR600CodeGen.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMR600Desc.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMR600Info.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMRuntimeDyld.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMScalarOpts.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMSelectionDAG.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMSparcCodeGen.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMSparcDesc.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMSparcInfo.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMSupport.a:
U __ZN4llvm12MemoryBuffer16getMemBufferCopyENS_9StringRefES1_
000000b0 T __ZN4llvm12MemoryBuffer16getMemBufferCopyENS_9StringRefES1_
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMSystemZAsmParser.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMSystemZAsmPrinter.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMSystemZCodeGen.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMSystemZDesc.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMSystemZDisassembler.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMSystemZInfo.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMTableGen.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMTarget.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMTransformUtils.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMVectorize.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMX86AsmParser.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMX86AsmPrinter.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMX86CodeGen.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMX86Desc.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMX86Disassembler.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMX86Info.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMX86Utils.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMXCoreAsmPrinter.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMXCoreCodeGen.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMXCoreDesc.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMXCoreDisassembler.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMXCoreInfo.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMipa.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLLVMipo.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libLTO.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libclangARCMigrate.a:
U __ZN4llvm12MemoryBuffer16getMemBufferCopyENS_9StringRefES1_
U __ZN4llvm12MemoryBuffer16getMemBufferCopyENS_9StringRefES1_
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libclangAST.a:
U __ZN4llvm12MemoryBuffer16getMemBufferCopyENS_9StringRefES1_
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libclangASTMatchers.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libclangAnalysis.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libclangBasic.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libclangCodeGen.a:
U __ZN4llvm12MemoryBuffer16getMemBufferCopyENS_9StringRefES1_
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libclangDriver.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libclangDynamicASTMatchers.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libclangEdit.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libclangFormat.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libclangFrontend.a:
U __ZN4llvm12MemoryBuffer16getMemBufferCopyENS_9StringRefES1_
U __ZN4llvm12MemoryBuffer16getMemBufferCopyENS_9StringRefES1_
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libclangFrontendTool.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libclangIndex.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libclangLex.a:
U __ZN4llvm12MemoryBuffer16getMemBufferCopyENS_9StringRefES1_
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libclangParse.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libclangRewriteCore.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libclangRewriteFrontend.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libclangSema.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libclangSerialization.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libclangStaticAnalyzerCheckers.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libclangStaticAnalyzerCore.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libclangStaticAnalyzerFrontend.a:
/Users/asmirnov/Documents/dev/src/llvm_34_ios_i386_installed_/lib/libclangTooling.a:
所以它似乎找到了用法而不是实现。我该怎么做才能正确（找到带有方法impl的.a文件）？
答案 0 :(得分：0)
当我输入
nm --help
我明白了：
Usage: nm [option(s)] [file(s)]
List symbols in [file(s)] (a.out by default).
The options are:
-a, --debug-syms Display debugger-only symbols
-A, --print-file-name Print name of the input file before every symbol
-B Same as --format=bsd
-C, --demangle[=STYLE] Decode low-level symbol names into user-level names
The STYLE, if specified, can be `auto' (the default),
`gnu', `lucid', `arm', `hp', `edg', `gnu-v3', `java'
or `gnat'
--no-demangle Do not demangle low-level symbol names
-D, --dynamic Display dynamic symbols instead of normal symbols
--defined-only Display only defined symbols
-e (ignored)
-f, --format=FORMAT Use the output format FORMAT. FORMAT can be `bsd',
`sysv' or `posix'. The default is `bsd'
-g, --extern-only Display only external symbols
-l, --line-numbers Use debugging information to find a filename and
line number for each symbol
-n, --numeric-sort Sort symbols numerically by address
-o Same as -A
-p, --no-sort Do not sort the symbols
-P, --portability Same as --format=posix
-r, --reverse-sort Reverse the sense of the sort
--plugin NAME Load the specified plugin
-S, --print-size Print size of defined symbols
-s, --print-armap Include index for symbols from archive members
--size-sort Sort symbols by size
--special-syms Include special symbols in the output
--synthetic Display synthetic symbols as well
-t, --radix=RADIX Use RADIX for printing symbol values
--target=BFDNAME Specify the target object format as BFDNAME
-u, --undefined-only Display only undefined symbols
-X 32_64 (ignored)
@FILE Read options from FILE
-h, --help Display this information
-V, --version Display this program's version number
nm: supported targets: elf64-x86-64 elf32-i386 elf32-x86-64 a.out-i386-linux pei-i386 pei-x86-64 elf64-l1om elf64-k1om elf64-little elf64-big elf32-little elf32-big plugin srec symbolsrec verilog tekhex binary ihex
Report bugs to .
这是在Linux台式机上。