Docs for llvm-symbolizer command-line tool

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176337 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/docs/CommandGuide/index.rst b/docs/CommandGuide/index.rst
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--- a/docs/CommandGuide/index.rst
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@@ -28,6 +28,7 @@ Basic Commands
    llvm-diff
    llvm-cov
    llvm-stress
+   llvm-symbolizer
 
 Debugging Tools
 ~~~~~~~~~~~~~~~

diff --git a/docs/CommandGuide/llvm-symbolizer.rst b/docs/CommandGuide/llvm-symbolizer.rst
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@@ -0,0 +1,65 @@
+llvm-symbolizer - convert addresses into source code locations
+==============================================================
+
+SYNOPSIS
+--------
+
+:program:`llvm-symbolizer` [options]
+
+DESCRIPTION
+-----------
+
+:program:`llvm-symbolizer` reads object file names and addresses from standard
+input and prints corresponding source code locations to standard output. This
+program uses debug info sections and symbol table in the object files.
+
+EXAMPLE
+--------
+
+.. code-block:: console
+
+  $ cat addr.txt
+  a.out 0x4004f4
+  /tmp/b.out 0x400528
+  /tmp/c.so 0x710
+  $ llvm-symbolizer < addr.txt
+  main
+  /tmp/a.cc:4
+  
+  f(int, int)
+  /tmp/b.cc:11
+
+  h_inlined_into_g
+  /tmp/header.h:2
+  g_inlined_into_f
+  /tmp/header.h:7
+  f_inlined_into_main
+  /tmp/source.cc:3
+  main
+  /tmp/source.cc:8
+
+OPTIONS
+-------
+
+.. option:: -functions
+
+  Print function names as well as source file/line locations. Defaults to true.
+
+.. option:: -use-symbol-table
+
+ Prefer function names stored in symbol table to function names
+ in debug info sections. Defaults to true.
+
+.. option:: -demangle
+
+ Print demangled function names. Defaults to true.
+
+.. option:: -inlining 
+
+ If a source code location is in an inlined function, prints all the
+ inlnied frames. Defaults to true.
+
+EXIT STATUS
+-----------
+
+:program:`llvm-symbolizer` returns 0. Other exit codes imply internal program error.