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2011-12-14 Pedro Alves <pedro@codesourcery.com> 

* gdb.texinfo (Implementing a Remote Stub): Explain that you
	should transfer control to the stub in the startup code instead of
	in main.  Mention the need to get past the initial breakpoint.
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Pedro Alves 2011-12-14 14:46:24 +00:00
parent ad32032e2e
commit 2fb860fcbc
2 changed files with 18 additions and 3 deletions
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6
gdb/doc/ChangeLog
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@ -1,3 +1,9 @@
2011-12-14 Pedro Alves <pedro@codesourcery.com>
* gdb.texinfo (Implementing a Remote Stub): Explain that you
should transfer control to the stub in the startup code instead of
in main. Mention the need to get past the initial breakpoint.
2011-12-06 Tom Tromey <tromey@redhat.com>
* gdb.texinfo (Set Breaks): Update for new behavior.

15
gdb/doc/gdb.texinfo
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@ -17536,8 +17536,8 @@ subroutines:
@findex set_debug_traps
@cindex remote serial stub, initialization
This routine arranges for @code{handle_exception} to run when your
program stops. You must call this subroutine explicitly near the
beginning of your program.
program stops. You must call this subroutine explicitly in your
program's startup code.
@item handle_exception
@findex handle_exception
@ -17683,13 +17683,22 @@ Make sure you have defined the supporting low-level routines
@end display
@item
Insert these lines near the top of your program:
Insert these lines in your program's startup code, before the main
procedure is called:
@smallexample
set_debug_traps();
breakpoint();
@end smallexample
On some machines, when a breakpoint trap is raised, the hardware
automatically makes the PC point to the instruction after the
breakpoint. If your machine doesn't do that, you may need to adjust
@code{handle_exception} to arrange for it to return to the instruction
after the breakpoint on this first invocation, so that your program
doesn't keep hitting the initial breakpoint instead of making
progress.
@item
For the 680x0 stub only, you need to provide a variable called
@code{exceptionHook}. Normally you just use: