Rename gdb.reverse/aarch64.{exp,c} to gdb.reverse/insn-reverse.{exp,c}

gdb/testsuite:

2016-02-26  Yao Qi  <yao.qi@linaro.org>

	* gdb.reverse/aarch64.c: Rename to ...
	* gdb.reverse/insn-reverse.c: ... it.
	* gdb.reverse/aarch64.exp: Rename to ...
	* gdb.reverse/insn-reverse.exp: ... it.

1 files changed, 130 insertions, 0 deletions

diff --git a/gdb/testsuite/gdb.reverse/insn-reverse.exp b/gdb/testsuite/gdb.reverse/insn-reverse.exp
new file mode 100644
index 0000000..f52b40c
--- /dev/null
+++ b/gdb/testsuite/gdb.reverse/insn-reverse.exp
@@ -0,0 +1,130 @@
+# Copyright (C) 2015-2016 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 ![supports_reverse] {
+    return
+}
+
+standard_testfile
+
+if {[prepare_for_testing $testfile.exp $testfile $srcfile \
+	 [list debug]]} {
+    untested ${testfile}.exp
+    return -1
+}
+if { ![runto main] } then {
+    fail "run to main"
+    return
+}
+
+# Read function name from testcases[N].
+
+proc read_testcase { n } {
+    global gdb_prompt
+
+    set result -1
+    gdb_test_multiple "print testcases\[${n}\]" "read name of test case ${n}" {
+	-re "\[$\].*= .*<(.*)>.*$gdb_prompt $" {
+	    set result $expect_out(1,string)
+	}
+	-re "$gdb_prompt $" { }
+    }
+
+    return $result
+}
+
+# In each function FUNC, GDB turns on process record, and single step
+# until program goes to the end of the function.  Then, single step
+# backward.  In each of forward single step and backward single step,
+# the contents of registers are saved, and test compares them.  If
+# there is any differences, a FAIL is emitted.
+
+proc test { func } {
+    global hex decimal
+    global gdb_prompt
+
+    with_test_prefix "$func" {
+	gdb_breakpoint $func
+	gdb_test "continue"
+
+	set last_insn ""
+	set test "disassemble $func"
+	gdb_test_multiple $test $test {
+	    -re ".*($hex) <\\+$decimal>:\[^\r\n\]+\r\nEnd of assembler dump\.\r\n$gdb_prompt $" {
+		set last_insn $expect_out(1,string)
+	    }
+	}
+	if { $last_insn == "" } {
+	    fail "find the last instruction of function $func"
+	}
+
+	# Activate process record/replay
+	gdb_test_no_output "record" "Turn on process record"
+
+	# Registers contents before each forward single step.
+	set count 0
+	for {} {$count < 500} {incr count} {
+	    gdb_test_multiple "x/i \$pc" "" {
+		-re ".* ($hex) <.*>:\[ \t\]*(.*)\r\n$gdb_prompt $" {
+		    set insn_addr $expect_out(1,string)
+
+		    if [expr {$last_insn == $insn_addr}] {
+			break
+		    }
+
+		    set insn_array($count) $expect_out(2,string)
+		}
+	    }
+
+	    set pre_regs($count) [capture_command_output "info all-registers" ""]
+	    gdb_test "si" "" ""
+	}
+
+	incr count -1
+	# Registers contents after each backward single step.
+	for {set i $count} {$i >= 0} {incr i -1} {
+	    gdb_test "reverse-stepi" "" ""
+	    set post_regs($i) [capture_command_output "info all-registers" ""]
+	}
+
+	# Compare the register contents.
+	for {set i 0} {$i < $count} {incr i} {
+	    if { ![gdb_assert { [string compare $pre_regs($i) $post_regs($i)] == 0 } \
+		      "compare registers on insn $i:$insn_array($i)"] } {
+
+		foreach pre_line [split $pre_regs($i) \n] post_line [split $post_regs($i) \n] {
+		    if { [string compare $pre_line $post_line] } {
+			verbose -log " -:$pre_line"
+			verbose -log " +:$post_line"
+		    }
+		}
+	    }
+	}
+	gdb_test "record stop"
+    }
+}
+
+set n_testcases [get_integer_valueof "n_testcases" 0]
+
+if { ${n_testcases} == 0 } {
+    untested "No test"
+    return 1
+}
+
+for { set i 0 } { ${i} < ${n_testcases} } { incr i } {
+    set testcase [read_testcase $i]
+
+    test $testcase
+}