[PATCH v2 2/6] Move make_temp_filename to common/pathstuff.c

[Tom Tromey]

Currently make_temp_filename is a function local to
write_psymtabs_to_index.  This patch moves it to pathstuff.c so that
it can be used from other places in gdb.

gdb/ChangeLog
2018-10-18  Tom Tromey  <tom@tromey.com>

	* dwarf-index-write.c (write_psymtabs_to_index): Move
	make_temp_filename to common/pathstuff.c.
	* common/pathstuff.h (make_temp_filename): Declare.
	* common/pathstuff.c (make_temp_filename): New function, moved
	from dwarf-index-write.c.
---
 gdb/ChangeLog           |  8 ++++++++
 gdb/common/pathstuff.c  | 11 +++++++++++
 gdb/common/pathstuff.h  |  7 +++++++
 gdb/dwarf-index-write.c | 11 +----------
 4 files changed, 27 insertions(+), 10 deletions(-)

diff --git a/gdb/common/pathstuff.c b/gdb/common/pathstuff.c
index 6d8e53f4e1..48ff861eda 100644
--- a/gdb/common/pathstuff.c
+++ b/gdb/common/pathstuff.c
@@ -202,3 +202,14 @@ get_shell ()
 
   return ret;
 }
+
+/* See common/pathstuff.h.  */
+
+gdb::char_vector
+make_temp_filename (const std::string &f)
+{
+  gdb::char_vector filename_temp (f.length () + 8);
+  strcpy (filename_temp.data (), f.c_str ());
+  strcat (filename_temp.data () + f.size (), "-XXXXXX");
+  return filename_temp;
+}
diff --git a/gdb/common/pathstuff.h b/gdb/common/pathstuff.h
index 40fbda8d85..14fab04805 100644
--- a/gdb/common/pathstuff.h
+++ b/gdb/common/pathstuff.h
@@ -20,6 +20,8 @@
 #ifndef PATHSTUFF_H
 #define PATHSTUFF_H
 
+#include "common/byte-vector.h"
+
 /* Path utilities.  */
 
 /* Return the real path of FILENAME, expanding all the symbolic links.
@@ -68,4 +70,9 @@ extern std::string get_standard_cache_dir ();
 
 extern const char *get_shell ();
 
+/* Make a filename suitable to pass to mkstemp based on F (e.g.
+   /tmp/foo -> /tmp/foo-XXXXXX).  */
+
+extern gdb::char_vector make_temp_filename (const std::string &f);
+
 #endif /* PATHSTUFF_H */
diff --git a/gdb/dwarf-index-write.c b/gdb/dwarf-index-write.c
index d4585af837..4335c39074 100644
--- a/gdb/dwarf-index-write.c
+++ b/gdb/dwarf-index-write.c
@@ -24,6 +24,7 @@
 #include "common/byte-vector.h"
 #include "common/filestuff.h"
 #include "common/gdb_unlinker.h"
+#include "common/pathstuff.h"
 #include "common/scoped_fd.h"
 #include "complaints.h"
 #include "dwarf-index-common.h"
@@ -1560,16 +1561,6 @@ write_psymtabs_to_index (struct dwarf2_per_objfile *dwarf2_per_objfile,
   if (stat (objfile_name (objfile), &st) < 0)
     perror_with_name (objfile_name (objfile));
 
-  /* Make a filename suitable to pass to mkstemp based on F (e.g.
-     /tmp/foo -> /tmp/foo-XXXXXX).  */
-  auto make_temp_filename = [] (const std::string &f) -> gdb::char_vector
-    {
-      gdb::char_vector filename_temp (f.length () + 8);
-      strcpy (filename_temp.data (), f.c_str ());
-      strcat (filename_temp.data () + f.size (), "-XXXXXX");
-      return filename_temp;
-    };
-
   std::string filename (std::string (dir) + SLASH_STRING + basename
 			+ (index_kind == dw_index_kind::DEBUG_NAMES
 			   ? INDEX5_SUFFIX : INDEX4_SUFFIX));
-- 
2.17.1