[Bug tui/16138] layout asm when run from emacs exits gdb complaining "Error opening terminal: emacs"

["palves at redhat dot com" <sourceware-bugzilla at sourceware dot org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=16138

--- Comment #8 from Pedro Alves <palves at redhat dot com> ---
Yes, I think we can assume that.  The initscr call is in tui_enable.  This is
the function that initializes curses the first time TUI is enabled, so it's
guaranteed that all TUI commands will end up calling it.  Here's the "refresh"
backtrace.

(top-gdb) bt
#0  tui_enable () at ../../src/gdb/tui/tui.c:372
#1  0x0000000000501c72 in tui_refresh_all_command (arg=0x0, from_tty=1) at
../../src/gdb/tui/tui-win.c:986
#2  0x00000000004dd78f in do_cfunc (c=0xdb7ed0, args=0x0, from_tty=1) at
../../src/gdb/cli/cli-decode.c:107
#3  0x00000000004e0824 in cmd_func (cmd=0xdb7ed0, args=0x0, from_tty=1) at
../../src/gdb/cli/cli-decode.c:1882
#4  0x00000000006ed521 in execute_command (p=0xcc06c7 "", from_tty=1) at
../../src/gdb/top.c:468
#5  0x00000000005f27a7 in command_handler (command=0xcc06c0 "refresh") at
../../src/gdb/event-top.c:435
(...)

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