Make gdb_stdout&co be per UI
authorPedro Alves <palves@redhat.com>
Tue, 21 Jun 2016 00:11:44 +0000 (01:11 +0100)
committerPedro Alves <palves@redhat.com>
Tue, 21 Jun 2016 00:11:44 +0000 (01:11 +0100)
commit79aa2fe86f105fae162f780f760d655f212eaeb6
treebc6d1631212c664c684169df1f061bc063b9f37b
parenta74e1786ac24d4ef1ce8a92a1ab06c727a462881
Make gdb_stdout&co be per UI

We need to have these send output to the proper UI.

However, this patch still make them look like globals.  Kind of like
__thread variables, if you will.  Changing everything throughout to
write something like current_ui->gdb_stdout instead would be massive
overkill, IMNSHO.

This leaves gdb_stdtargin/stdtarg/stdtargerr global, but maybe that was a
mistake, I'm not sure -- IIRC, MI formats target I/O differently, so
if we have a separate MI channel, then I guess target output should go
there instead of to gdb's stdout.  OTOH, maybe GDB should send that
instead to "set inferior-tty", instead of multiplexing it over MI.  We
can always fix those later when it gets clearer where they should go.

gdb/ChangeLog:
2016-06-21  Pedro Alves  <palves@redhat.com>

* main.c (gdb_stdout, gdb_stderr, gdb_stdlog, gdb_stdin): Delete
globals.
(gen_ret_current_ui_field_ptr): New macro.  Use it to generate
wrappers for gdb_stdout, gdb_stderr, gdb_stdlog and gdb_stdin.
* top.h (struct ui) <m_gdb_stdout, m_gdb_stdin, m_gdb_stderr,
m_gdb_stdlog>: New fields.
(current_ui_gdb_stdout_ptr, current_ui_gdb_stdin_ptr)
(current_ui_gdb_stderr_ptr, current_ui_gdb_stdlog_ptr): Declare.
(gdb_stdout, gdb_stdin, gdb_stderr, gdb_stdlog): Reimplement as
macros.
gdb/ChangeLog
gdb/main.c
gdb/top.c
gdb/top.h
gdb/utils.h