da8c46d296
Indicate speculatively executed instructions with a leading '?'. We use the space that is normally used for the PC prefix. In the case where the instruction at the current PC had been executed speculatively before, the PC prefix will be partially overwritten resulting in "?> ". As a side-effect, the /p modifier to omit the PC prefix in the "record instruction-history" command now uses a 3-space PC prefix " " in order to have enough space for the speculative execution indication. gdb/ * btrace.c (btrace_compute_ftrace_bts): Clear insn flags. (pt_btrace_insn_flags): New. (ftrace_add_pt): Call pt_btrace_insn_flags. * btrace.h (btrace_insn_flag): New. (btrace_insn) <flags>: New. * record-btrace.c (btrace_insn_history): Print insn prefix. * NEWS: Announce it. doc/ * gdb.texinfo (Process Record and Replay): Document prefixing of speculatively executed instructions in the "record instruction-history" command. testsuite/ * gdb.btrace/instruction_history.exp: Update. * gdb.btrace/tsx.exp: New. * gdb.btrace/tsx.c: New. * lib/gdb.exp (skip_tsx_tests, skip_btrace_pt_tests): New.
41 lines
1.4 KiB
Text
41 lines
1.4 KiB
Text
# This testcase is part of GDB, the GNU debugger.
|
|
#
|
|
# Copyright 2015 Free Software Foundation, Inc.
|
|
#
|
|
# This program is free software; you can redistribute it and/or modify
|
|
# it under the terms of the GNU General Public License as published by
|
|
# the Free Software Foundation; either version 3 of the License, or
|
|
# (at your option) any later version.
|
|
#
|
|
# This program is distributed in the hope that it will be useful,
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
# GNU General Public License for more details.
|
|
#
|
|
# You should have received a copy of the GNU General Public License
|
|
# along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
if { [skip_btrace_pt_tests] } { return -1 }
|
|
if { [skip_tsx_tests] } { return -1 }
|
|
|
|
# compile and run to main
|
|
standard_testfile .c x86-tsx.S
|
|
if [prepare_for_testing tsx.exp $testfile "$srcfile $srcfile2" {debug}] {
|
|
return -1
|
|
}
|
|
if ![runto_main] {
|
|
return -1
|
|
}
|
|
|
|
# record the test
|
|
gdb_test_no_output "record btrace pt"
|
|
gdb_test "next"
|
|
|
|
# look at the instruction trace
|
|
gdb_test "record instruction-history" [multi_line \
|
|
".*" \
|
|
"\[0-9\]*\t\\? 0x\[0-9a-f\]+ <test\\+\[0-9\]+>:\txbegin\[^\\\r\\\n\]*" \
|
|
"\[0-9\]*\t\\? 0x\[0-9a-f\]+ <test\\+\[0-9\]+>:\tmov\[^\\\r\\\n\]*" \
|
|
"\[0-9\]*\t 0x\[0-9a-f\]+ <test\\+\[0-9\]+>:\txend\[^\\\r\\\n\]*" \
|
|
".*" \
|
|
]
|