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RECORD_IS_USED and record_full_open look at current_target.to_stratum to determine whether a record target is in use. This is wrong because arch_stratum is greater than record_stratum, so if an arch_stratum target is pushed, RECORD_IS_USED and record_full_open will miss it. To fix this, we can use the existing find_record_target instead, which looks up for a record stratum target across the target stack. Since that means exporting find_record_target in record.h, RECORD_IS_USED ends up redundant, so the patch eliminates it. That exercise then reveals other issues: - adjust_pc_after_break is gating record_full_... calls based on RECORD_IS_USED. But, record_full_ calls shouldn't be made when recording with the record-btrace target. So this adds a new record_full_is_used predicate to be used in that spot. - record_full_open says "Process record target already running", even if the recording target is record-btrace ("process record" is the original complete name of the record-full target). record_btrace_open only says "The process is already being recorded." and does not suggest "record stop", like record-full does. The patch factors out and merges that error to a new record_preopen function that all record targets call in their open routine. Tested on x86_64 Fedora 17. gdb/ 2014-01-14 Pedro Alves <palves@redhat.com> Tom Tromey <tromey@redhat.com> * infrun.c (use_displaced_stepping): Use find_record_target instead of RECORD_IS_USED. (adjust_pc_after_break): Use record_full_is_used instead of RECORD_IS_USED. * record-btrace.c (record_btrace_open): Call record_preopen instead of checking RECORD_IS_USED. * record-full.c (record_full_shortname) (record_full_core_shortname): New globals. (record_full_is_used): New function. (find_full_open): Call record_preopen instead of checking RECORD_IS_USED. (init_record_full_ops): Set the target's shortname to record_full_shortname. (init_record_full_core_ops): Set the target's shortname to record_full_core_shortname. * record-full.h (record_full_is_used): Declare. * record.c (find_record_target): Make extern. (record_preopen): New function. * record.h (RECORD_IS_USED): Delete macro. (find_record_target, record_preopen): Declare functions.
35 lines
1.2 KiB
C
35 lines
1.2 KiB
C
/* Process record and replay target for GDB, the GNU debugger.
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Copyright (C) 2013-2014 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#ifndef RECORD_FULL_H
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#define RECORD_FULL_H
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extern int record_full_memory_query;
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extern int record_full_arch_list_add_reg (struct regcache *regcache, int num);
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extern int record_full_arch_list_add_mem (CORE_ADDR addr, int len);
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extern int record_full_arch_list_add_end (void);
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/* Returns true if the process record target is open. */
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extern int record_full_is_used (void);
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extern struct cleanup *record_full_gdb_operation_disable_set (void);
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#endif /* RECORD_FULL_H */
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