如何使用 scan-build 在不同的目标上运行 clang 静态分析器答案

【问题标题】：how to run clang static analyzer on different target using scan-build如何使用 scan-build 在不同的目标上运行 clang 静态分析器
【发布时间】：2016-09-14 13:40:33
【问题描述】：

我想在不同的目标上运行 clang 静态分析器。这是makefile片段：

CC = <path to clang folder>/build/bin/clang
.
.
.    
src/%.o: ../src/%.c
    ${CC} --target=powerpc -O0 -g3 -Wall -c -fmessage-length=0 -MMD -MP -MF"$(@:%.o=%.d)" -MT"$(@)" -o "$@" "$<"

我正在尝试编译到 powerpc。这是命令行和输出：

>> <path_to_llvm_folder>/llvm/tools/clang/tools/scan-build/scan-build --use-analyzer=<path_to_llvm_folder>/build/bin/clang make
scan-build: Using '<path_to_llvm_folder>/build/bin/clang' for static analysis
Building file: ../src/testing.c
Invoking: GCC C Compiler
<path to clang folder>/llvm/tools/clang/tools/scan-build/ccc-analyzer --target=powerpc -O0 -g3 -Wall -c -fmessage-length=0 -MMD -MP -MF"src/testing.d" -MT"src/testing.o" -o "src/testing.o" "../src/testing.c"
cc1: warning: command line option "-ftarget=powerpc" is valid for Java but not for C

请注意，尽管 makefile 正在调用 clang - 我收到 gcc 警告...那么如何使用 clang 编译代码并针对不同目标进行静态分析？

【问题讨论】：

标签： clang static-analysis

【解决方案1】：

找到了解决方案。我认为下一个参数中的 ccc-analyzer 脚本中存在错误：

my %CompilerLinkerOptionMap = (
  '-Wwrite-strings' => 0,
  '-ftrapv-handler' => 1, # specifically call out separated -f flag
  '-mios-simulator-version-min' => 0, # This really has 1 argument, but always has '='
  '-isysroot' => 1,
  '-arch' => 1,
  '-m32' => 0,
  '-m64' => 0,
  '-stdlib' => 0, # This is really a 1 argument, but always has '='
  '--sysroot' => 1,
  '-target' => 1,
  '-v' => 0,
  '-mmacosx-version-min' => 0, # This is really a 1 argument, but always has '='
  '-miphoneos-version-min' => 0 # This is really a 1 argument, but always has '='
);

'-target' => 1,

需要

'--target' => 1,

（带有双'-'）...

【讨论】：