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Add alias command to cmd_list_element

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When we add alias command, we call add_alias_cmd and pass the alias name
and command name.  This implicitly requires the command and its prefix
commands are already added to cmdlist.  This may not be true, for example,

  add_com_alias ("tty", "set inferior-tty", class_alias, 0);

"inferior-tty" command is added to setlist, but setlist may not be added
to cmdlist (It depends on the order of related _initialize_XXX functions
called) so that we can't find "set inferior-tty" from cmdlist.

This patch fixes this problem by passing cmd_list_element of "inferior-tty"
to add_alias_cmd, so that cmd_list_element of "inferior-tty" doesn't have
to be reachable from cmdlist at that moment.

gdb:

2017-05-17  Yao Qi  <yao.qi@linaro.org>

	* cli/cli-decode.c (add_alias_cmd): New function.
	* command.h (add_alias_cmd): Declare.
	* infcmd.c (_initialize_infcmd): Don't call add_com_alias,
	instead call add_alias_cmd.

gdb/testsuite:

2017-05-17  Simon Marchi  <simon.marchi@ericsson.com>

	* gdb.base/set-inferior-tty.exp (test_set_inferior_tty): Add
	argument command.
	(top-level): Invoke test_set_inferior_tty.
This commit is contained in:
Yao Qi 2017-05-17 14:22:04 +01:00
parent 2b351b19ef
commit 21873064e8
6 changed files with 48 additions and 15 deletions
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6
gdb/command.h
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@ -141,6 +141,12 @@ extern struct cmd_list_element *add_alias_cmd (const char *, const char *,
enum command_class, int,
struct cmd_list_element **);
extern struct cmd_list_element *add_alias_cmd (const char *,
cmd_list_element *,
enum command_class, int,
struct cmd_list_element **);
extern struct cmd_list_element *add_prefix_cmd (const char *, enum command_class,
cmd_cfunc_ftype *fun,
const char *,