From 3c615f99d3923df7dfa94c6587733c682efbbc78 Mon Sep 17 00:00:00 2001 From: Markus Metzger Date: Tue, 25 Aug 2015 10:49:11 +0200 Subject: [PATCH] btrace: extract the breakpoint check from record_btrace_step_thread There are two places where record_btrace_step_thread checks for a breakpoint at the current replay position. Move this code into its own function. gdb/ * record-btrace.c (record_btrace_replay_at_breakpoint): New. (record_btrace_step_thread): Call record_btrace_replay_at_breakpoint. --- gdb/ChangeLog | 5 +++++ gdb/record-btrace.c | 42 ++++++++++++++++++++++++++++++------------ 2 files changed, 35 insertions(+), 12 deletions(-) diff --git a/gdb/ChangeLog b/gdb/ChangeLog index 098f732..e56028a 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,5 +1,10 @@ 2015-09-18 Markus Metzger + * record-btrace.c (record_btrace_replay_at_breakpoint): New. + (record_btrace_step_thread): Call record_btrace_replay_at_breakpoint. + +2015-09-18 Markus Metzger + * record-btrace.c (btrace_thread_flag_to_str) (record_btrace_cancel_resume): New. (record_btrace_step_thread): Call btrace_thread_flag_to_str. diff --git a/gdb/record-btrace.c b/gdb/record-btrace.c index 7ee681c..77494ba 100644 --- a/gdb/record-btrace.c +++ b/gdb/record-btrace.c @@ -1983,6 +1983,34 @@ record_btrace_clear_histories (struct btrace_thread_info *btinfo) btinfo->call_history = NULL; } +/* Check whether TP's current replay position is at a breakpoint. */ + +static int +record_btrace_replay_at_breakpoint (struct thread_info *tp) +{ + struct btrace_insn_iterator *replay; + struct btrace_thread_info *btinfo; + const struct btrace_insn *insn; + struct inferior *inf; + + btinfo = &tp->btrace; + replay = btinfo->replay; + + if (replay == NULL) + return 0; + + insn = btrace_insn_get (replay); + if (insn == NULL) + return 0; + + inf = find_inferior_ptid (tp->ptid); + if (inf == NULL) + return 0; + + return record_check_stopped_by_breakpoint (inf->aspace, insn->pc, + &btinfo->stop_reason); +} + /* Step a single thread. */ static struct target_waitstatus @@ -1990,8 +2018,6 @@ record_btrace_step_thread (struct thread_info *tp) { struct btrace_insn_iterator *replay, end; struct btrace_thread_info *btinfo; - struct address_space *aspace; - struct inferior *inf; enum btrace_thread_flag flags; unsigned int steps; @@ -2067,9 +2093,6 @@ record_btrace_step_thread (struct thread_info *tp) if (replay == NULL) return btrace_step_no_history (); - inf = find_inferior_ptid (tp->ptid); - aspace = inf->aspace; - /* Determine the end of the instruction trace. */ btrace_insn_end (&end, btinfo); @@ -2102,8 +2125,7 @@ record_btrace_step_thread (struct thread_info *tp) target_pid_to_str (tp->ptid), core_addr_to_string_nz (insn->pc)); - if (record_check_stopped_by_breakpoint (aspace, insn->pc, - &btinfo->stop_reason)) + if (record_btrace_replay_at_breakpoint (tp)) return btrace_step_stopped (); } @@ -2112,9 +2134,6 @@ record_btrace_step_thread (struct thread_info *tp) if (replay == NULL) replay = record_btrace_start_replaying (tp); - inf = find_inferior_ptid (tp->ptid); - aspace = inf->aspace; - for (;;) { const struct btrace_insn *insn; @@ -2135,8 +2154,7 @@ record_btrace_step_thread (struct thread_info *tp) target_pid_to_str (tp->ptid), core_addr_to_string_nz (insn->pc)); - if (record_check_stopped_by_breakpoint (aspace, insn->pc, - &btinfo->stop_reason)) + if (record_btrace_replay_at_breakpoint (tp)) return btrace_step_stopped (); } } -- 2.7.4