diff options
Diffstat (limited to 'gdb/doc/gdb.texinfo')
| -rw-r--r-- | gdb/doc/gdb.texinfo | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/gdb/doc/gdb.texinfo b/gdb/doc/gdb.texinfo index 50c299e..925e66a 100644 --- a/gdb/doc/gdb.texinfo +++ b/gdb/doc/gdb.texinfo @@ -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: |