[PATCH] Add a 'starti' command.

[Eli Zaretskii]

> From: John Baldwin <jhb@FreeBSD.org>
> Date: Tue, 29 Aug 2017 15:54:57 -0700
> 
> This works like 'start' but it stops at the first instruction rather than
> the first line in main().  This is useful if one wants to single step
> through runtime linker startup.
> 
> gdb/ChangeLog:
> 
> 	* NEWS (Changes since GDB 8.0): Add starti.
> 	* infcmd.c (enum run_break): New.
> 	(run_command_1): Insert temporary breakpoint at current PC for
> 	FIRST_INSTR case.
> 	(run_command): Use enum run_break.
> 	(start_command): Likewise.
> 	(starti_command): New function.
> 	(_initialize_infcmd): Add starti command.
> 
> gdb/doc/ChangeLog:
> 
> 	* gdb.texinfo (Starting your Program): Add description of
> 	starti command.  Mention starti command as an alternative for
> 	debugging the elaboration phase.

OK for the documentation parts.

Thanks.