Overhauled llvm/clang docs builds. Closes PR6613.

NOTE: 2nd part changeset for cfe trunk to follow.

*** PRE-PATCH ISSUES ADDRESSED

- clang api docs fail build from objdir
- clang/llvm api docs collide in install PREFIX/
- clang/llvm main docs collide in install
- clang/llvm main docs have full of hard coded destination
  assumptions and make use of absolute root in static html files;
  namely CommandGuide tools hard codes a website destination
  for cross references and some html cross references assume
  website root paths

*** IMPROVEMENTS

- bumped Doxygen from 1.4.x -> 1.6.3
- splits llvm/clang docs into 'main' and 'api' (doxygen) build trees
- provide consistent, reliable doc builds for both main+api docs
- support buid vs. install vs. website intentions
- support objdir builds
- document targets with 'make help'
- correct clean and uninstall operations
- use recursive dir delete only where absolutely necessary
- added call function fn.RMRF which safeguards against botched 'rm -rf';
  if any target (or any variable is evaluated) which attempts
  to remove any dirs which match a hard-coded 'safelist', a verbose
  error will be printed and make will error-stop.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103213 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 60 insertions, 0 deletions

diff --git a/docs/main/CommandGuide/llvm-dis.pod b/docs/main/CommandGuide/llvm-dis.pod
new file mode 100644
index 0000000000..5b2f4ef4e9
--- /dev/null
+++ b/docs/main/CommandGuide/llvm-dis.pod
@@ -0,0 +1,60 @@
+=pod
+
+=head1 NAME
+
+llvm-dis - LLVM disassembler
+
+=head1 SYNOPSIS
+
+B<llvm-dis> [I<options>] [I<filename>]
+
+=head1 DESCRIPTION
+
+The B<llvm-dis> command is the LLVM disassembler.  It takes an LLVM
+bitcode file and converts it into human-readable LLVM assembly language.
+
+If filename is omitted or specified as C<->, B<llvm-dis> reads its
+input from standard input.
+
+If the input is being read from standard input, then B<llvm-dis>
+will send its output to standard output by default.  Otherwise, the
+output will be written to a file named after the input file, with
+a C<.ll> suffix added (any existing C<.bc> suffix will first be
+removed).  You can override the choice of output file using the
+B<-o> option.
+
+=head1 OPTIONS
+
+=over
+
+=item B<-f>
+
+Enable binary output on terminals.  Normally, B<llvm-dis> will refuse to
+write raw bitcode output if the output stream is a terminal. With this option,
+B<llvm-dis> will write raw bitcode regardless of the output device.
+
+=item B<-help>
+
+Print a summary of command line options.
+
+=item B<-o> F<filename>
+
+Specify the output file name.  If F<filename> is -, then the output is sent
+to standard output.
+
+=back
+
+=head1 EXIT STATUS
+
+If B<llvm-dis> succeeds, it will exit with 0.  Otherwise, if an error
+occurs, it will exit with a non-zero value.
+
+=head1 SEE ALSO
+
+L<llvm-as|llvm-as>
+
+=head1 AUTHORS
+
+Maintained by the LLVM Team (L<http://llvm.org>).
+
+=cut