[llvm-symbolizer] Add -exe, -e as aliases to -obj

[Quolyk]

Summary

Provides -exe, -e as aliases to -obj. Motivation: https://bugs.llvm.org/show_bug.cgi?id=40071

[jhenderson]

test/tools/llvm-symbolizer/sym.test

25 ↗

(On Diff #181212)

I don't think this is the right test to extend this way. I would prefer either tools/llvm-symbolizer/basic.test being updated (committed very recently, so make sure you have an up-to-date checkout), or DebugInfo/llvm-symbolizer.test (see the test case within the file that uses the "BINARY" and "BINARY_C" for FileCheck prefixes).

[Quolyk]

Update tests

[jhenderson]

LGTM.

docs/CommandGuide/llvm-symbolizer.rst

.. code-block:: console
    (inlined by) main at /tmp/x.c:9:0
   $llvm-symbolizer -inlining -pretty-print -obj=addr.exe < addr.txt
   inc at /tmp/x.c:3:3
    (inlined by) main at /tmp/x.c:9:0
 
 OPTIONS
 -------
 
-.. option:: -obj
+.. option:: -obj, -exe, -e
 
   Path to object file to be symbolized.
 
 .. option:: -functions=[none|short|linkage]
 
   Specify the way function names are printed (omit function name,
   print short function name, or print full linkage name, respectively).
   Defaults to ``linkage``.

test/tools/llvm-symbolizer/basic.s

 # Check input addresses specified on stdin.
 # RUN: echo -e "0xa\n0xb" | llvm-symbolizer --obj=%t.o | FileCheck %s
 # RUN: echo -e "10\n11" | llvm-symbolizer --obj=%t.o | FileCheck %s
 
 # Check input addresses specified on the command-line.
 # RUN: llvm-symbolizer 0xa 0xb --obj=%t.o | FileCheck %s
 # RUN: llvm-symbolizer 10 11 --obj=%t.o | FileCheck %s
 
+# Check --obj aliases --exe, -e
+# RUN: llvm-symbolizer 0xa 0xb --exe=%t.o | FileCheck %s
+# RUN: llvm-symbolizer 0xa 0xb -e=%t.o | FileCheck %s
+
 # CHECK: basic.s:5:0
 # CHECK: basic.s:6:0

tools/llvm-symbolizer/llvm-symbolizer.cpp

 
 static cl::opt<bool>
 ClDemangle("demangle", cl::init(true), cl::desc("Demangle function names"));
 
 static cl::opt<std::string> ClDefaultArch("default-arch", cl::init(""),
                                           cl::desc("Default architecture "
                                                    "(for multi-arch objects)"));
 
+// -obj, -exe, -e
 static cl::opt<std::string>
 ClBinaryName("obj", cl::init(""),
              cl::desc("Path to object file to be symbolized (if not provided, "
                       "object file should be specified for each input line)"));
+static cl::alias
+ClBinaryNameAliasExe("exe", cl::desc("Alias for -obj"),
+                     cl::NotHidden, cl::aliasopt(ClBinaryName));
+static cl::alias
+ClBinaryNameAliasE("e", cl::desc("Alias for -obj"),
+                   cl::NotHidden, cl::aliasopt(ClBinaryName));
+
 
 static cl::opt<std::string>
     ClDwpName("dwp", cl::init(""),
               cl::desc("Path to DWP file to be use for any split CUs"));
 
 static cl::list<std::string>
 ClDsymHint("dsym-hint", cl::ZeroOrMore,
            cl::desc("Path to .dSYM bundles to search for debug info for the "