Rename to allow_btrace_tests

This changes skip_btrace_tests to invert the sense, and renames it to
allow_btrace_tests.

gdb/testsuite/gdb.btrace/buffer-size.exp

@@ -17,7 +17,7 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-require !skip_btrace_tests
+require allow_btrace_tests
 
 standard_testfile record_goto.c
 if [prepare_for_testing "failed to prepare" $testfile $srcfile] {

gdb/testsuite/gdb.btrace/data.exp

@@ -17,7 +17,7 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-require !skip_btrace_tests
+require allow_btrace_tests
 
 standard_testfile
 if [prepare_for_testing "failed to prepare" $testfile $srcfile] {

gdb/testsuite/gdb.btrace/delta.exp

@@ -17,7 +17,7 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-require !skip_btrace_tests
+require allow_btrace_tests
 
 standard_testfile record_goto.c
 if [prepare_for_testing "failed to prepare" $testfile $srcfile] {

gdb/testsuite/gdb.btrace/dlopen.exp

@@ -15,7 +15,7 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-require !skip_btrace_tests !skip_shlib_tests
+require allow_btrace_tests !skip_shlib_tests
 
 standard_testfile
 

gdb/testsuite/gdb.btrace/enable-new-thread.exp

@@ -17,7 +17,7 @@
 
 # Test that new threads of recorded inferiors also get recorded.
 
-require !skip_btrace_tests
+require allow_btrace_tests
 
 standard_testfile
 if [prepare_for_testing "failed to prepare" $testfile $srcfile {debug pthreads}] {

gdb/testsuite/gdb.btrace/enable-running.exp

@@ -15,7 +15,7 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-require !skip_btrace_tests
+require allow_btrace_tests
 
 standard_testfile
 if {[gdb_compile_pthreads "$srcdir/$subdir/$srcfile" "$binfile" executable {debug}] != "" } {

gdb/testsuite/gdb.btrace/enable.exp

@@ -17,7 +17,7 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-require !skip_btrace_tests
+require allow_btrace_tests
 
 # start fresh - without an executable
 gdb_exit

gdb/testsuite/gdb.btrace/exception.exp

@@ -17,7 +17,7 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-require !skip_btrace_tests
+require allow_btrace_tests
 
 # We expect a specific function call history.  This gets messed up with
 # PIE on 32-bit.

gdb/testsuite/gdb.btrace/function_call_history.exp

@@ -17,7 +17,7 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-require !skip_btrace_tests
+require allow_btrace_tests
 
 # We expect a specific function call history.  This gets messed up with
 # PIE on 32-bit.

gdb/testsuite/gdb.btrace/gcore.exp

@@ -17,7 +17,7 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-require !skip_btrace_tests
+require allow_btrace_tests
 
 standard_testfile record_goto.c
 if [prepare_for_testing "failed to prepare" $testfile $srcfile] {

gdb/testsuite/gdb.btrace/instruction_history.exp

@@ -17,7 +17,7 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-require !skip_btrace_tests
+require allow_btrace_tests
 
 standard_testfile .c .S
 if [prepare_for_testing "failed to prepare" $testfile "$srcfile $srcfile2" {debug}] {

gdb/testsuite/gdb.btrace/multi-inferior.exp

@@ -22,7 +22,7 @@
 #
 # Each inferior can be recorded separately.
 
-require !skip_btrace_tests
+require allow_btrace_tests
 
 require !use_gdb_stub
 

gdb/testsuite/gdb.btrace/multi-thread-step.exp

@@ -17,7 +17,7 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-require !skip_btrace_tests
+require allow_btrace_tests
 
 standard_testfile
 if {[gdb_compile_pthreads "$srcdir/$subdir/$srcfile" "$binfile" executable {debug}] != "" } {

gdb/testsuite/gdb.btrace/nohist.exp

@@ -17,7 +17,7 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-require !skip_btrace_tests
+require allow_btrace_tests
 
 standard_testfile record_goto.c
 if [prepare_for_testing "failed to prepare" $testfile $srcfile] {

gdb/testsuite/gdb.btrace/non-stop.exp

@@ -15,7 +15,7 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-require !skip_btrace_tests
+require allow_btrace_tests
 
 standard_testfile
 if {[gdb_compile_pthreads "$srcdir/$subdir/$srcfile" "$binfile" executable {debug}] != "" } {

gdb/testsuite/gdb.btrace/reconnect.exp

@@ -19,7 +19,7 @@
 
 load_lib gdbserver-support.exp
 
-require !skip_btrace_tests
+require allow_btrace_tests
 require !skip_gdbserver_tests
 
 standard_testfile

gdb/testsuite/gdb.btrace/record_goto-step.exp

@@ -17,7 +17,7 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-require !skip_btrace_tests
+require allow_btrace_tests
 
 standard_testfile record_goto.c
 if [prepare_for_testing "failed to prepare" $testfile $srcfile] {

gdb/testsuite/gdb.btrace/record_goto.exp

@@ -17,7 +17,7 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-require !skip_btrace_tests
+require allow_btrace_tests
 
 # The "record goto" command jumps to a specific instruction in the execution
 # trace.  To guarantee that we always get the same execution trace, we use

gdb/testsuite/gdb.btrace/rn-dl-bind.exp

@@ -21,7 +21,7 @@
 # Test that we can reverse-next over the dynamic linker's symbol
 # lookup code.
 
-require !skip_btrace_tests
+require allow_btrace_tests
 
 standard_testfile
 if [prepare_for_testing "failed to prepare" $testfile $srcfile \

gdb/testsuite/gdb.btrace/segv.exp

@@ -17,7 +17,7 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-require !skip_btrace_tests
+require allow_btrace_tests
 
 standard_testfile
 if [prepare_for_testing "failed to prepare" $testfile $srcfile] {

gdb/testsuite/gdb.btrace/step.exp

@@ -17,7 +17,7 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-require !skip_btrace_tests
+require allow_btrace_tests
 
 standard_testfile record_goto.c
 if [prepare_for_testing "failed to prepare" $testfile $srcfile] {

gdb/testsuite/gdb.btrace/stepi.exp

@@ -17,7 +17,7 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-require !skip_btrace_tests
+require allow_btrace_tests
 
 # This test is stepping on instruction level.  To guarantee that we always
 # get the same execution trace, we use an assembly source file.

gdb/testsuite/gdb.btrace/tailcall-only.exp

@@ -20,7 +20,7 @@
 # calls.  This used to cause a crash in get_frame_type.
 #
 
-require !skip_btrace_tests
+require allow_btrace_tests
 
 # This test requires the compiler to generate a tail call.  To guarantee that
 # we always get one, we use an assembly source file.

gdb/testsuite/gdb.btrace/tailcall.exp

@@ -17,7 +17,7 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-require !skip_btrace_tests
+require allow_btrace_tests
 
 # This test requires the compiler to generate a tail call.  To guarantee that
 # we always get one, we use an assembly source file.

gdb/testsuite/gdb.btrace/unknown_functions.exp

@@ -17,7 +17,7 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-require !skip_btrace_tests
+require allow_btrace_tests
 
 standard_testfile
 

gdb/testsuite/gdb.btrace/vdso.exp

@@ -20,7 +20,7 @@
 #
 # Test that we can access the vdso memory during replay for stepping.
 
-require !skip_btrace_tests
+require allow_btrace_tests
 
 standard_testfile
 if [prepare_for_testing "failed to prepare" $testfile $srcfile] {

gdb/testsuite/gdb.python/py-record-btrace-threads.exp

@@ -17,7 +17,7 @@
 
 load_lib gdb-python.exp
 
-require !skip_btrace_tests !skip_python_tests
+require allow_btrace_tests !skip_python_tests
 
 standard_testfile
 

gdb/testsuite/gdb.python/py-record-btrace.exp

@@ -17,7 +17,7 @@
 
 # Skip this test if btrace is disabled.
 
-require !skip_btrace_tests !skip_python_tests
+require allow_btrace_tests !skip_python_tests
 
 load_lib gdb-python.exp
 

gdb/testsuite/lib/gdb.exp

@@ -3801,22 +3801,22 @@ gdb_caching_proc allow_avx512fp16_tests {
     return $allow_avx512fp16_tests
 }
 
-# Run a test on the target to see if it supports btrace hardware.  Return 0 if so,
-# 1 if it does not.  Based on 'check_vmx_hw_available' from the GCC testsuite.
+# Run a test on the target to see if it supports btrace hardware.  Return 1 if so,
+# 0 if it does not.  Based on 'check_vmx_hw_available' from the GCC testsuite.
 
-gdb_caching_proc skip_btrace_tests {
+gdb_caching_proc allow_btrace_tests {
     global srcdir subdir gdb_prompt inferior_exited_re
 
-    set me "skip_btrace_tests"
+    set me "allow_btrace_tests"
     if { ![istarget "i?86-*-*"] && ![istarget "x86_64-*-*"] } {
-        verbose "$me:  target does not support btrace, returning 1" 2
-        return 1
+	verbose "$me:  target does not support btrace, returning 0" 2
+	return 0
     }
 
     # Compile a test program.
     set src { int main() { return 0; } }
     if {![gdb_simple_compile $me $src executable]} {
-        return 1
+	return 0
     }
 
     # No error message, compilation succeeded so now run it via gdb.
@@ -3826,29 +3826,29 @@ gdb_caching_proc skip_btrace_tests {
     gdb_reinitialize_dir $srcdir/$subdir
     gdb_load $obj
     if ![runto_main] {
-        return 1
+	return 0
     }
     # In case of an unexpected output, we return 2 as a fail value.
-    set skip_btrace_tests 2
+    set allow_btrace_tests 2
     gdb_test_multiple "record btrace" "check btrace support" {
         -re "You can't do that when your target is.*\r\n$gdb_prompt $" {
-            set skip_btrace_tests 1
+	    set allow_btrace_tests 0
         }
         -re "Target does not support branch tracing.*\r\n$gdb_prompt $" {
-            set skip_btrace_tests 1
+	    set allow_btrace_tests 0
         }
         -re "Could not enable branch tracing.*\r\n$gdb_prompt $" {
-            set skip_btrace_tests 1
+	    set allow_btrace_tests 0
         }
         -re "^record btrace\r\n$gdb_prompt $" {
-            set skip_btrace_tests 0
+	    set allow_btrace_tests 1
         }
     }
     gdb_exit
     remote_file build delete $obj
 
-    verbose "$me:  returning $skip_btrace_tests" 2
-    return $skip_btrace_tests
+    verbose "$me:  returning $allow_btrace_tests" 2
+    return $allow_btrace_tests
 }
 
 # Run a test on the target to see if it supports btrace pt hardware.