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.
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@ -3267,14 +3267,8 @@ linux_wait_1 (ptid_t ptid,
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if (bp_explains_trap)
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{
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/* If we stepped or ran into an internal breakpoint, we've
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already handled it. So next time we resume (from this
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PC), we should step over it. */
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if (debug_threads)
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debug_printf ("Hit a gdbserver breakpoint.\n");
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if (breakpoint_here (event_child->stop_pc))
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event_child->need_step_over = 1;
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}
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}
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else
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@ -4540,12 +4534,6 @@ need_step_over_p (struct inferior_list_entry *entry, void *dummy)
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return 0;
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}
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if (!lwp->need_step_over)
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{
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if (debug_threads)
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debug_printf ("Need step over [LWP %ld]? No\n", lwpid_of (thread));
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}
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if (lwp->status_pending_p)
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{
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if (debug_threads)
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@ -4571,8 +4559,6 @@ need_step_over_p (struct inferior_list_entry *entry, void *dummy)
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"Old stop_pc was 0x%s, PC is now 0x%s\n",
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lwpid_of (thread),
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paddress (lwp->stop_pc), paddress (pc));
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lwp->need_step_over = 0;
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return 0;
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}
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@ -4622,8 +4608,6 @@ need_step_over_p (struct inferior_list_entry *entry, void *dummy)
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that find_inferior stops looking. */
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current_thread = saved_thread;
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/* If the step over is cancelled, this is set again. */
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lwp->need_step_over = 0;
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return 1;
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}
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}
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@ -365,10 +365,6 @@ struct lwp_info
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a exit-jump-pad-quickly breakpoint. This is it. */
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struct breakpoint *exit_jump_pad_bkpt;
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/* True if the LWP was seen stop at an internal breakpoint and needs
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stepping over later when it is resumed. */
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int need_step_over;
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#ifdef USE_THREAD_DB
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int thread_known;
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/* The thread handle, used for e.g. TLS access. Only valid if
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