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[binutils-gdb.git] / gdbsupport / pathstuff.cc

diff --git a/gdbsupport/pathstuff.cc b/gdbsupport/pathstuff.cc
index 311456720e4aa09cae5bc08d555026b2a8e2dd8a..ad13900819efc0478b4576bdecafa79380605f8a 100644 (file)
--- a/gdbsupport/pathstuff.cc
+++ b/gdbsupport/pathstuff.cc
@@ -1,6 +1,6 @@
 /* Path manipulation routines for GDB and gdbserver.
 
-   Copyright (C) 1986-2020 Free Software Foundation, Inc.
+   Copyright (C) 1986-2021 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -222,7 +222,7 @@ get_standard_cache_dir ()
 
 #ifndef __APPLE__
   const char *xdg_cache_home = getenv ("XDG_CACHE_HOME");
-  if (xdg_cache_home != NULL)
+  if (xdg_cache_home != NULL && xdg_cache_home[0] != '\0')
     {
       /* Make sure the path is absolute and tilde-expanded.  */
       gdb::unique_xmalloc_ptr<char> abs (gdb_abspath (xdg_cache_home));
@@ -231,13 +231,23 @@ get_standard_cache_dir ()
 #endif
 
   const char *home = getenv ("HOME");
-  if (home != NULL)
+  if (home != NULL && home[0] != '\0')
     {
       /* Make sure the path is absolute and tilde-expanded.  */
       gdb::unique_xmalloc_ptr<char> abs (gdb_abspath (home));
       return string_printf ("%s/" HOME_CACHE_DIR "/gdb", abs.get ());
     }
 
+#ifdef WIN32
+  const char *win_home = getenv ("LOCALAPPDATA");
+  if (win_home != NULL && win_home[0] != '\0')
+    {
+      /* Make sure the path is absolute and tilde-expanded.  */
+      gdb::unique_xmalloc_ptr<char> abs (gdb_abspath (win_home));
+      return string_printf ("%s/gdb", abs.get ());
+    }
+#endif
+
   return {};
 }
 
@@ -279,7 +289,7 @@ get_standard_config_dir ()
 
 #ifndef __APPLE__
   const char *xdg_config_home = getenv ("XDG_CONFIG_HOME");
-  if (xdg_config_home != NULL)
+  if (xdg_config_home != NULL && xdg_config_home[0] != '\0')
     {
       /* Make sure the path is absolute and tilde-expanded.  */
       gdb::unique_xmalloc_ptr<char> abs (gdb_abspath (xdg_config_home));
@@ -288,7 +298,7 @@ get_standard_config_dir ()
 #endif
 
   const char *home = getenv ("HOME");
-  if (home != NULL)
+  if (home != NULL && home[0] != '\0')
     {
       /* Make sure the path is absolute and tilde-expanded.  */
       gdb::unique_xmalloc_ptr<char> abs (gdb_abspath (home));
@@ -330,7 +340,7 @@ find_gdb_home_config_file (const char *name, struct stat *buf)
     }
 
   const char *homedir = getenv ("HOME");
-  if (homedir != nullptr)
+  if (homedir != nullptr && homedir[0] != '\0')
     {
       /* Make sure the path is absolute and tilde-expanded.  */
       gdb::unique_xmalloc_ptr<char> abs (gdb_abspath (homedir));