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Remove need_step_over from struct lwp_info 

Hi,
I happen to see that field need_step_over in struct lwp_info is only
used to print a debug info.  need_step_over is set in linux_wait_1
when breakpoint_here is true, however, we check breakpoint_here too in
need_step_over_p and do the step over.  I think we don't need field
need_step_over, and check breakpoint_here directly in need_step_over_p.

This field was added in this patch
https://sourceware.org/ml/gdb-patches/2010-03/msg00605.html and the code
wasn't changed much since then.

This patch is to remove it.

gdb/gdbserver:

2016-04-28  Yao Qi  <yao.qi@linaro.org>

	* linux-low.h (struct lwp_info) <need_step_over>: Remove.
	* linux-low.c (linux_wait_1): Update.
	(need_step_over_p): Likewise.
This commit is contained in:
Yao Qi 2016-04-28 11:52:23 +01:00
parent 4bd13cde17
commit f166f943f3
2 changed files with 0 additions and 20 deletions
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16
gdb/gdbserver/linux-low.c
View File

@ -3267,14 +3267,8 @@ linux_wait_1 (ptid_t ptid,
if (bp_explains_trap)
{
/* If we stepped or ran into an internal breakpoint, we've
already handled it. So next time we resume (from this
PC), we should step over it. */
if (debug_threads)
debug_printf ("Hit a gdbserver breakpoint.\n");
if (breakpoint_here (event_child->stop_pc))
event_child->need_step_over = 1;
}
}
else
@ -4540,12 +4534,6 @@ need_step_over_p (struct inferior_list_entry *entry, void *dummy)
return 0;
}
if (!lwp->need_step_over)
{
if (debug_threads)
debug_printf ("Need step over [LWP %ld]? No\n", lwpid_of (thread));
}
if (lwp->status_pending_p)
{
if (debug_threads)
@ -4571,8 +4559,6 @@ need_step_over_p (struct inferior_list_entry *entry, void *dummy)
"Old stop_pc was 0x%s, PC is now 0x%s\n",
lwpid_of (thread),
paddress (lwp->stop_pc), paddress (pc));
lwp->need_step_over = 0;
return 0;
}
@ -4622,8 +4608,6 @@ need_step_over_p (struct inferior_list_entry *entry, void *dummy)
that find_inferior stops looking. */
current_thread = saved_thread;
/* If the step over is cancelled, this is set again. */
lwp->need_step_over = 0;
return 1;
}
}

4
gdb/gdbserver/linux-low.h
View File

@ -365,10 +365,6 @@ struct lwp_info
a exit-jump-pad-quickly breakpoint. This is it. */
struct breakpoint *exit_jump_pad_bkpt;
/* True if the LWP was seen stop at an internal breakpoint and needs
stepping over later when it is resumed. */
int need_step_over;
#ifdef USE_THREAD_DB
int thread_known;
/* The thread handle, used for e.g. TLS access. Only valid if