Add jit-tempdir.{c|h}

gcc/jit/ChangeLog:
        PR jit/64206
	* Make-lang.in (jit_OBJS): Add jit/jit-tempdir.o.
	* jit-common.h (gcc::jit::tempdir): New forward decl.
	* jit-playback.c: Include jit-tempdir.h.
	(gcc::jit::playback::context::context): Initialize m_tempdir.
	(gcc::jit::playback::context::~context): Move tempdir
	cleanup to new file jit-tempdir.c
	(make_tempdir_path_template): Move to new file jit-tempdir.c.
	(gcc::jit::playback::context::compile): Move tempdir creation
	to new tempdir object in new file jit-tempdir.c.
	(gcc::jit::playback::context::make_fake_args): Get path from
	tempdir object rather than from member data.
	(gcc::jit::playback::context::convert_to_dso): Likewise.
	(gcc::jit::playback::context::dlopen_built_dso): Likewise.
	(gcc::jit::playback::context::dump_generated_code): Likewise.
	(gcc::jit::playback::context::get_path_c_file): New function.
	(gcc::jit::playback::context::get_path_s_file): New function.
	(gcc::jit::playback::context::get_path_so_file): New function.
	* jit-playback.h (gcc::jit::playback::context::get_path_c_file):
	New function.
	(gcc::jit::playback::context::get_path_s_file): New function.
	(gcc::jit::playback::context::get_path_so_file): New function.
	(gcc::jit::playback::context): Move fields "m_path_template",
	"m_path_tempdir", "m_path_c_file", "m_path_s_file",
	"m_path_so_file" to new jit::tempdir class; add field "m_tempdir".
	* jit-tempdir.c: New file.
	* jit-tempdir.h: New file.

From-SVN: r218533

1 files changed, 81 insertions, 0 deletions

diff --git a/gcc/jit/jit-tempdir.h b/gcc/jit/jit-tempdir.h
new file mode 100644
index 0000000..31636dd
--- /dev/null
+++ b/gcc/jit/jit-tempdir.h
@@ -0,0 +1,81 @@
+/* Managing temporary directories and their content within libgccjit.so
+   Copyright (C) 2014 Free Software Foundation, Inc.
+   Contributed by David Malcolm <dmalcolm@redhat.com>.
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify it
+under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 3, or (at your option)
+any later version.
+
+GCC is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GCC; see the file COPYING3.  If not see
+<http://www.gnu.org/licenses/>.  */
+
+#ifndef JIT_TEMPDIR_H
+#define JIT_TEMPDIR_H
+
+namespace gcc {
+
+namespace jit {
+
+/* A class to keep track of the jit::playback::context's tempdir.
+
+   The tempdir has the following layout:
+
+     /tmp/libgccjit-XXXXXX/
+			 ./fake.c
+			    (doesn't exist, but the rest of the
+			     compiler needs a source code filename)
+
+			 ./fake.s
+			      (created by toplev::main)
+
+			 ./fake.so
+			      (created by playback::context::convert_to_dso).
+
+  It is normally deleted from the filesystem in the playback::context's
+  dtor, unless GCC_JIT_BOOL_OPTION_KEEP_INTERMEDIATES was set.  */
+
+class tempdir
+{
+ public:
+  tempdir (int keep_intermediates);
+  ~tempdir ();
+
+  bool create ();
+
+  const char * get_path () const { return m_path_tempdir; }
+  const char * get_path_c_file () const { return m_path_c_file; }
+  const char * get_path_s_file () const { return m_path_s_file; }
+  const char * get_path_so_file () const { return m_path_so_file; }
+
+ private:
+  /* Was GCC_JIT_BOOL_OPTION_KEEP_INTERMEDIATES set?  If so, keep the
+     on-disk tempdir around after this wrapper object goes away.  */
+  int m_keep_intermediates;
+
+  /* Allocated using xmalloc (by xstrdup).  */
+  char *m_path_template;
+
+  /* This either aliases m_path_template, or is NULL.  */
+  char *m_path_tempdir;
+
+  /* The following are allocated using xmalloc.  */
+  char *m_path_c_file;
+  char *m_path_s_file;
+  char *m_path_so_file;
+
+};
+
+} // namespace gcc::jit
+
+} // namespace gcc
+
+#endif /* JIT_TEMPDIR_H */