[lld/mac] Support more flags for --reproduce

[thakis]

Summary

I went through the callers of readFile() and addFile() in Driver.cpp
and checked that the options that use them all get rewritten in the
--reproduce response file. -(un)exported_symbols_list and -bundle_loader
weren't, so add them.

Also spruce up the test for reproduce a bit and actually try linking
with the exptracted repro archive.

Motivated by the response file in PR50098 complaining abou the
-exported_symbols_list path being wrong :)

[int3]

lld/test/MachO/reproduce.s

8–10

can we remove -platform_version here now that we include it in lit.local.cfg?

31

technically an accurate reproduction command would just be ld64.lld @response.txt since the other flags will be included in the response file

44

ditto

[thakis]

Thanks!

lld/test/MachO/reproduce.s

8–10

the rsp check below matches the explicit versions here, and explicitly matching the ones from lit.local.cfg is maybe a bit awkward?

31

good point, done

lld/MachO/DriverUtils.cpp

for (const Arg *arg : args) {
     case OPT_o:
       os << "-o " << quote(path::filename(arg->getValue())) << "\n";
       break;
     case OPT_filelist:
       if (Optional<MemoryBufferRef> buffer = readFile(arg->getValue()))
         for (StringRef path : args::getLines(*buffer))
           os << quote(rewritePath(path)) << "\n";
       break;
-    case OPT_force_load:
-    case OPT_rpath:
-    case OPT_syslibroot:
     case OPT_F:
     case OPT_L:
+    case OPT_bundle_loader:
+    case OPT_exported_symbols_list:
+    case OPT_force_load:
     case OPT_order_file:
+    case OPT_rpath:
+    case OPT_syslibroot:
+    case OPT_unexported_symbols_list:
       os << arg->getSpelling() << " " << quote(rewritePath(arg->getValue()))
          << "\n";
       break;
     case OPT_sectcreate:
       os << arg->getSpelling() << " " << quote(arg->getValue(0)) << " "
          << quote(arg->getValue(1)) << " "
          << quote(rewritePath(arg->getValue(2))) << "\n";
       break;

lld/test/MachO/reproduce.s

 # REQUIRES: x86
 
 # RUN: rm -rf %t.dir
 # RUN: mkdir -p %t.dir/build1
 # RUN: llvm-mc -filetype=obj -triple=x86_64-apple-macos %s -o %t.dir/build1/foo.o
+# RUN: echo '_main' > %t.dir/main.exports
 # RUN: cd %t.dir
-# RUN: %lld -platform_version macos 10.10.0 11.0 build1/foo.o -o bar --reproduce repro1.tar
-# RUN: tar xOf repro1.tar repro1/%:t.dir/build1/foo.o > build1-foo.o
-# RUN: cmp build1/foo.o build1-foo.o
-
-# RUN: tar xf repro1.tar repro1/response.txt repro1/version.txt
+# RUN: %lld -platform_version macos 10.10.0 11.0 \
+# RUN:     -exported_symbols_list main.exports \
+# RUN:     build1/foo.o -o bar --reproduce repro1.tar
+
+# RUN: tar tf repro1.tar | FileCheck -DPATH='%:t.dir' --check-prefix=LIST %s
+# LIST: repro1/response.txt
+# LIST: [[PATH]]/main.exports
+# LIST: [[PATH]]/build1/foo.o
+
+# RUN: tar xf repro1.tar
+# RUN: cmp build1/foo.o repro1/%:t.dir/build1/foo.o
+# RUN: diff main.exports repro1/%:t.dir/main.exports
 # RUN: FileCheck %s --check-prefix=RSP1 < repro1/response.txt
 # RSP1:      {{^}}-platform_version macos 10.10.0 11.0{{$}}
+# RSP1-NEXT: -exported_symbols_list [[BASEDIR:.+]]/main.exports
 # RSP1-NOT:  {{^}}repro1{{[/\\]}}
-# RSP1-NEXT: {{[/\\]}}foo.o
+# RSP1-NEXT: [[BASEDIR]]/build1/foo.o
 # RSP1-NEXT: -o bar
 # RSP1-NOT:  --reproduce
 
 # RUN: FileCheck %s --check-prefix=VERSION < repro1/version.txt
 # VERSION: LLD
 
+# RUN: cd repro1; ld64.lld @response.txt
+
 # RUN: mkdir -p %t.dir/build2/a/b/c
 # RUN: llvm-mc -filetype=obj -triple=x86_64-apple-macos %s -o %t.dir/build2/foo.o
 # RUN: cd %t.dir/build2/a/b/c
 # RUN: echo ./../../../foo.o > %t.dir/build2/filelist
 # RUN: env LLD_REPRODUCE=repro2.tar %lld -filelist %t.dir/build2/filelist -o /dev/null
-# RUN: tar xOf repro2.tar repro2/%:t.dir/build2/foo.o > build2-foo.o
-# RUN: cmp %t.dir/build2/foo.o build2-foo.o
-
-# RUN: tar xf repro2.tar repro2/response.txt repro2/version.txt
+# RUN: tar xf repro2.tar
+# RUN: cmp %t.dir/build2/foo.o repro2/%:t.dir/build2/foo.o
 # RUN: FileCheck %s --check-prefix=RSP2 < repro2/response.txt
 # RSP2-NOT:  {{^}}repro2{{[/\\]}}
 # RSP2:      {{[/\\]}}foo.o
 
+# RUN: cd repro2; ld64.lld @response.txt
+
 .globl _main
 _main:
   ret