[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

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/sym.test

 #
 #Build as : clang -g -O2 addr.c
 
 RUN: llvm-symbolizer -print-address -obj=%p/Inputs/addr.exe < %p/Inputs/addr.inp | FileCheck %s
 RUN: llvm-symbolizer -inlining -print-address -pretty-print -obj=%p/Inputs/addr.exe < %p/Inputs/addr.inp | FileCheck -check-prefix="PRETTY" %s 
 RUN: llvm-symbolizer -inlining -print-address -p -obj=%p/Inputs/addr.exe < %p/Inputs/addr.inp | FileCheck -check-prefix="PRETTY" %s
 RUN: echo "0x1" > %t.input
 RUN: llvm-symbolizer -obj=%p/Inputs/zero < %t.input | FileCheck -check-prefix="ZERO" %s
+RUN: llvm-symbolizer -exe=%p/Inputs/zero < %t.input | FileCheck -check-prefix="ZERO" %s
+RUN: llvm-symbolizer -e=%p/Inputs/zero < %t.input | FileCheck -check-prefix="ZERO" %s
 
 #CHECK: some text
 #CHECK: 0x40054d
 #CHECK: main
 #CHECK: {{[/\]+}}tmp{{[/\]+}}x.c:14:0
 #CHECK: some text2
 #
 #PRETTY: some text
 #PRETTY: {{[0x]+}}40054d: inctwo at {{[/\]+}}tmp{{[/\]+}}x.c:3:3
 #PRETTY:  (inlined by) inc at {{[/\]+}}tmp{{[/\]+}}x.c:7:0
 #PRETTY   (inlined by) main at {{[/\]+}}tmp{{[/\]+}}x.c:14:0
 #PRETTY: some text2
 #
 #ZERO: ??
 #ZERO: ??:0:0

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 "