From 3f81c18a86568f2d36fda242e9221a3526550f64 Mon Sep 17 00:00:00 2001
From: Vladimir Prus <vladimir@codesourcery.com>
Date: Wed, 20 Jan 2010 14:23:07 +0000
Subject: 	Per-inferior args and tty and environment.

	* infcmd.c (inferior_args): Rename to ...
	(inferior_args_scratch): ... this.
	(inferior_io_terminal): Rename to ...
	(inferior_io_terminal_scratch): ... this.
	(inferior_argc, inferior_argv): Remove.
	(set_inferior_io_terminal, get_inferior_io_terminal): Store
	inside current_inferior().
	(set_inferior_tty_command, show_inferior_tty_command): New.
	(get_inferior_args, set_inferior_args): Store inside
	current_inferior().
	(notice_args_set): Likewise and rename to...
	(set_args_command): ... this.
	(set_inferior_args_vector): Likewise.
	(notice_args_read): Rename to...
	(show_args_command): ...new.
	(tty_command): Remove.
	(run_command_1): Don't free old args, as they are freed by
	set_inferior_arg now.
	(run_no_args_command): Likewise.
	(inferior_environ): Remove.
	(run_command_1): Use environment of the current inferior.
	(environment_info, set_environment_command)
	(unset_environment_command, path_info, path_command): Likewise.
	(_initialize_infcmd): Adjust for function and variable renames.
	Do not init inferior_environ.
	* inferior.h (set_inferior_arg): Adjust prototype.
	(struct inferior): New fields args, argc, argv, terminal, environment.
	(inferior_environ): Remove declaration.
	* inferior.c (free_inferior): Free new fields.
	(add_inferior_silent): Initialize 'environment' field.
	* main.c (captured_main): Set arguments only after the initial
	inferior has been created.  Set set_inferior_io_terminal,
	not tty_command.
	* mi/mi-main.c (mi_cmd_env_path): Use environment of the current
	inferior.
	(_initialize_mi_cmd_env): Adjust for disappearance of global
	inferior_environ.
	* solib.c (solib_find): Use environment of the current inferior.
---
 gdb/mi/mi-cmd-env.c | 17 ++++++++++++-----
 1 file changed, 12 insertions(+), 5 deletions(-)

(limited to 'gdb/mi/mi-cmd-env.c')

diff --git a/gdb/mi/mi-cmd-env.c b/gdb/mi/mi-cmd-env.c
index d9703ee..cdd25f2 100644
--- a/gdb/mi/mi-cmd-env.c
+++ b/gdb/mi/mi-cmd-env.c
@@ -162,7 +162,7 @@ mi_cmd_env_path (char *command, char **argv, int argc)
   else
     {
       /* Otherwise, get current path to modify.  */
-      env = get_in_environ (inferior_environ, path_var_name);
+      env = get_in_environ (current_inferior ()->environment, path_var_name);
 
       /* Can be null if path is not set.  */
       if (!env)
@@ -173,9 +173,9 @@ mi_cmd_env_path (char *command, char **argv, int argc)
   for (i = argc - 1; i >= 0; --i)
     env_mod_path (argv[i], &exec_path);
 
-  set_in_environ (inferior_environ, path_var_name, exec_path);
+  set_in_environ (current_inferior ()->environment, path_var_name, exec_path);
   xfree (exec_path);
-  env = get_in_environ (inferior_environ, path_var_name);
+  env = get_in_environ (current_inferior ()->environment, path_var_name);
   ui_out_field_string (uiout, "path", env);
 }
 
@@ -260,10 +260,17 @@ mi_cmd_inferior_tty_show (char *command, char **argv, int argc)
 void 
 _initialize_mi_cmd_env (void)
 {
+  struct gdb_environ *environment;
   char *env;
 
-  /* We want original execution path to reset to, if desired later.  */
-  env = get_in_environ (inferior_environ, path_var_name);
+  /* We want original execution path to reset to, if desired later.
+     At this point, current inferior is not created, so cannot use
+     current_inferior ()->environment.  Also, there's no obvious
+     place where this code can be moved suchs that it surely run
+     before any code possibly mangles original PATH.  */
+  environment = make_environ ();
+  init_environ (environment);
+  env = get_in_environ (environment, path_var_name);
 
   /* Can be null if path is not set.  */
   if (!env)
-- 
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