aprantl added a comment.

In D85988#2222616 <https://reviews.llvm.org/D85988#2222616>, @clayborg wrote:

> Adrian: is there something I need to do to enable simulator tests? I added a 
> test to TestSimulatorPlatform.py but if I run:
>
>   $ ../debug/bin/llvm-lit -sv lldb/test/API/macosx/simulator
>   llvm-lit: 
> /Users/gclayton/Documents/src/lldb/mono/llvm-project/lldb/test/API/lit.cfg.py:147:
>  warning: Could not set a default per-test timeout. Requires the Python 
> psutil module but it could not be found. Try installing it via pip or via 
> your operating system's package manager.
>   
>   Testing Time: 19.61s
>     Unsupported: 1
>   
>   1 warning(s) in tests
>
> It is unsupported? I am running this on a mac. Do I need to launch a 
> simulator first? Extra arguments to the test suite?

No, the tests are supposed to run. Green dragon (which is running a consumer 
macOS + consumer Xcode) is running this test. I know because it sometimes fails 
because it couldn't launch the simulator :-(
The test was XFAILed a few weeks ago — is your LLVM up-to-date?



================
Comment at: lldb/source/Host/macosx/objcxx/Host.mm:509
            triple_arch == llvm::Triple::x86_64);
-      const char *cstr = data.GetCStr(&offset);
-      if (cstr) {
-        process_info.GetExecutableFile().SetFile(cstr, 
FileSpec::Style::native);
+      llvm::StringRef str(data.GetCStr(&offset));
+      if (!str.empty()) {
----------------
data.GetCStringRef()?
http://llvm.org/doxygen/classllvm_1_1DataExtractor.html

Not sure if we surface that through the LLDB dataextractor, but we probably 
should.


================
Comment at: lldb/source/Host/macosx/objcxx/Host.mm:510
+      llvm::StringRef str(data.GetCStr(&offset));
+      if (!str.empty()) {
+        process_info.GetExecutableFile().SetFile(str, FileSpec::Style::native);
----------------
```
if (str.empty())
   return false;
```


================
Comment at: lldb/source/Host/macosx/objcxx/Host.mm:528
           for (int i = 0; i < static_cast<int>(argc); ++i) {
-            cstr = data.GetCStr(&offset);
-            if (cstr)
-              proc_args.AppendArgument(llvm::StringRef(cstr));
+            str = data.GetCStr(&offset);
+            if (!str.empty())
----------------
same here (GetCStringRef)
Perhaps also use a fresh variable to avoid confusion?


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D85988/new/

https://reviews.llvm.org/D85988

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