gdb/testsuite/

	* gdb.exp (supports_process_record): New.
	(supports_reverse): New.
	* gdb.reverse/break-precsave.exp: Call support_process_record
	to run test conditionally.
	* gdb.reverse/consecutive-precsave.exp: Likewise.
	* gdb.reverse/i386-precsave.exp: Likewise.
	* gdb.reverse/machinestate-precsave.exp: Likewise.
	* gdb.reverse/solib-precsave.exp: Likewise.
	* gdb.reverse/step-precsave.exp: Likewise.
	* gdb.reverse/until-precsave.exp: Likewise.
	* gdb.reverse/watch-precsave.exp: Likewise.
	* gdb.reverse/break-reverse.exp: Call support_reverse  to run
	test conditionally.
	* gdb.reverse/consecutive-reverse.exp: Likewise.
	* gdb.reverse/finish-precsave.exp: Likewise.
	* gdb.reverse/finish-reverse-bkpt.exp: Likewise.
	* gdb.reverse/finish-reverse.exp: Likewise.
	* gdb.reverse/i386-reverse.exp: Likewise.
	* gdb.reverse/i386-sse-reverse.exp: Likewise.
	* gdb.reverse/machinestate.exp: Likewise.
	* gdb.reverse/next-reverse-bkpt-over-sr.exp: Likewise.
	* gdb.reverse/sigall-precsave.exp: Likewise.
	* gdb.reverse/sigall-reverse.exp: Likewise.
	* gdb.reverse/solib-reverse.exp: Likewise.
	* gdb.reverse/step-reverse.exp: Likewise.
	* gdb.reverse/until-reverse.exp: Likewise.
	* gdb.reverse/watch-reverse.exp: Likewise.

25 files changed, 106 insertions, 46 deletions

diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog
index a98cb082af5..8faa846ef1e 100644
--- a/gdb/testsuite/ChangeLog
+++ b/gdb/testsuite/ChangeLog
@@ -1,3 +1,33 @@
+2011-11-08  Yao Qi  <yao@codesourcery.com>
+
+	* gdb.exp (supports_process_record): New.
+	(supports_reverse): New.
+	* gdb.reverse/break-precsave.exp: Call support_process_record
+	to run test conditionally.
+	* gdb.reverse/consecutive-precsave.exp: Likewise.
+	* gdb.reverse/i386-precsave.exp: Likewise.
+	* gdb.reverse/machinestate-precsave.exp: Likewise.
+	* gdb.reverse/solib-precsave.exp: Likewise.
+	* gdb.reverse/step-precsave.exp: Likewise.
+	* gdb.reverse/until-precsave.exp: Likewise.
+	* gdb.reverse/watch-precsave.exp: Likewise.
+	* gdb.reverse/break-reverse.exp: Call support_reverse  to run
+	test conditionally.
+	* gdb.reverse/consecutive-reverse.exp: Likewise.
+	* gdb.reverse/finish-precsave.exp: Likewise.
+	* gdb.reverse/finish-reverse-bkpt.exp: Likewise.
+	* gdb.reverse/finish-reverse.exp: Likewise.
+	* gdb.reverse/i386-reverse.exp: Likewise.
+	* gdb.reverse/i386-sse-reverse.exp: Likewise.
+	* gdb.reverse/machinestate.exp: Likewise.
+	* gdb.reverse/next-reverse-bkpt-over-sr.exp: Likewise.
+	* gdb.reverse/sigall-precsave.exp: Likewise.
+	* gdb.reverse/sigall-reverse.exp: Likewise.
+	* gdb.reverse/solib-reverse.exp: Likewise.
+	* gdb.reverse/step-reverse.exp: Likewise.
+	* gdb.reverse/until-reverse.exp: Likewise.
+	* gdb.reverse/watch-reverse.exp: Likewise.
+
 2011-11-05  Yao Qi  <yao@codesourcery.com>
 
 	* gdb.trace/trace-break.exp: Add test on setting two
diff --git a/gdb/testsuite/gdb.reverse/break-precsave.exp b/gdb/testsuite/gdb.reverse/break-precsave.exp
index c7e492bbe04..dc035c06ac4 100644
--- a/gdb/testsuite/gdb.reverse/break-precsave.exp
+++ b/gdb/testsuite/gdb.reverse/break-precsave.exp
@@ -17,7 +17,7 @@
 # with breakpoints in a process record logfile.
 
 # This test suitable only for process record-replay
-if ![target_info exists gdb,use_precord] {
+if ![supports_process_record] {
     return
 }
 
@@ -35,7 +35,7 @@ set end_location  [gdb_get_line_number "end of main"  ]
 
 runto main
 
-if [target_info exists gdb,use_precord] {
+if [supports_process_record] {
     # Activate process record/replay
     gdb_test_no_output "record" "Turn on process record"
 }
diff --git a/gdb/testsuite/gdb.reverse/break-reverse.exp b/gdb/testsuite/gdb.reverse/break-reverse.exp
index fd77bc51001..d76a0e6dd98 100644
--- a/gdb/testsuite/gdb.reverse/break-reverse.exp
+++ b/gdb/testsuite/gdb.reverse/break-reverse.exp
@@ -16,7 +16,7 @@
 # This file is part of the GDB testsuite.  It tests reverse debugging
 # with breakpoints.
 
-if ![target_info exists gdb,can_reverse] {
+if ![supports_reverse] {
     return
 }
 
@@ -34,7 +34,7 @@ set end_location  [gdb_get_line_number "end of main"  ]
 
 runto main
 
-if [target_info exists gdb,use_precord] {
+if [supports_process_record] {
     # Activate process record/replay
     gdb_test_no_output "record" "Turn on process record"
 }
diff --git a/gdb/testsuite/gdb.reverse/consecutive-precsave.exp b/gdb/testsuite/gdb.reverse/consecutive-precsave.exp
index 86923f623e8..68d6f83b023 100644
--- a/gdb/testsuite/gdb.reverse/consecutive-precsave.exp
+++ b/gdb/testsuite/gdb.reverse/consecutive-precsave.exp
@@ -17,7 +17,7 @@
 # consecutive instructions in a process record logfile.
 
 # This test suitable only for process record-replay
-if ![target_info exists gdb,use_precord] {
+if ![supports_process_record] {
     return
 }
 
@@ -30,7 +30,7 @@ if { [prepare_for_testing $testfile.exp $testfile $srcfile] } {
 
 runto main
 
-if [target_info exists gdb,use_precord] {
+if [supports_process_record] {
     # Activate process record/replay
     gdb_test_no_output "record" "Turn on process record"
 }
diff --git a/gdb/testsuite/gdb.reverse/consecutive-reverse.exp b/gdb/testsuite/gdb.reverse/consecutive-reverse.exp
index 967236f927a..7027729344f 100644
--- a/gdb/testsuite/gdb.reverse/consecutive-reverse.exp
+++ b/gdb/testsuite/gdb.reverse/consecutive-reverse.exp
@@ -16,7 +16,7 @@
 # This file is part of the GDB testsuite.  It tests stepping over
 # consecutive instructions in reverse.
 
-if ![target_info exists gdb,can_reverse] {
+if ![supports_reverse] {
     return
 }
 
@@ -29,7 +29,7 @@ if { [prepare_for_testing $testfile.exp $testfile $srcfile] } {
 
 runto main
 
-if [target_info exists gdb,use_precord] {
+if [supports_process_record] {
     # Activate process record/replay
     gdb_test_no_output "record" "Turn on process record"
 }
diff --git a/gdb/testsuite/gdb.reverse/finish-precsave.exp b/gdb/testsuite/gdb.reverse/finish-precsave.exp
index fbf35b63bfd..7ba7b88fde0 100644
--- a/gdb/testsuite/gdb.reverse/finish-precsave.exp
+++ b/gdb/testsuite/gdb.reverse/finish-precsave.exp
@@ -16,7 +16,7 @@
 # This file is part of the GDB testsuite.  It tests 'finish' with
 # reverse debugging.
 
-if ![target_info exists gdb,can_reverse] {
+if ![supports_reverse] {
     return
 }
 
@@ -29,7 +29,7 @@ if { [prepare_for_testing $testfile.exp "$testfile" $srcfile] } {
 
 runto main
 
-if [target_info exists gdb,use_precord] {
+if [supports_process_record] {
     # Activate process record/replay
     gdb_test_no_output "record" "Turn on process record"
 }
diff --git a/gdb/testsuite/gdb.reverse/finish-reverse-bkpt.exp b/gdb/testsuite/gdb.reverse/finish-reverse-bkpt.exp
index 09f68372c27..4a8990a6c70 100644
--- a/gdb/testsuite/gdb.reverse/finish-reverse-bkpt.exp
+++ b/gdb/testsuite/gdb.reverse/finish-reverse-bkpt.exp
@@ -19,7 +19,7 @@
 # the functions entry would be ignored.  Make sure the bug doesn't
 # reappear.
 
-if ![target_info exists gdb,can_reverse] {
+if ![supports_reverse] {
     return
 }
 
@@ -35,7 +35,7 @@ if ![runto_main] then {
     return 0
 }
 
-if [target_info exists gdb,use_precord] {
+if [supports_process_record] {
     # Activate process record/replay
     gdb_test_no_output "record" "Turn on process record"
 }
diff --git a/gdb/testsuite/gdb.reverse/finish-reverse.exp b/gdb/testsuite/gdb.reverse/finish-reverse.exp
index e6be1587498..0708b37d56c 100644
--- a/gdb/testsuite/gdb.reverse/finish-reverse.exp
+++ b/gdb/testsuite/gdb.reverse/finish-reverse.exp
@@ -16,7 +16,7 @@
 # This file is part of the GDB testsuite.  It tests 'finish' with
 # reverse debugging.
 
-if ![target_info exists gdb,can_reverse] {
+if ![supports_reverse] {
     return
 }
 
@@ -29,7 +29,7 @@ if { [prepare_for_testing $testfile.exp "$testfile" $srcfile] } {
 
 runto main
 
-if [target_info exists gdb,use_precord] {
+if [supports_process_record] {
     # Activate process record/replay
     gdb_test_no_output "record" "Turn on process record"
 }
diff --git a/gdb/testsuite/gdb.reverse/i386-precsave.exp b/gdb/testsuite/gdb.reverse/i386-precsave.exp
index 10d8ba3c4a8..e82dc90ccbc 100644
--- a/gdb/testsuite/gdb.reverse/i386-precsave.exp
+++ b/gdb/testsuite/gdb.reverse/i386-precsave.exp
@@ -20,7 +20,7 @@
 #
 
 # This test suitable only for process record-replay
-if ![target_info exists gdb,use_precord] {
+if ![supports_process_record] {
     return
 }
 
@@ -57,7 +57,7 @@ gdb_reinitialize_dir $srcdir/$subdir
 gdb_load ${binfile}
 runto main
 
-if [target_info exists gdb,use_precord] {
+if [supports_process_record] {
     # Activate process record/replay
     gdb_test_no_output "record" "Turn on process record"
 }
diff --git a/gdb/testsuite/gdb.reverse/i386-reverse.exp b/gdb/testsuite/gdb.reverse/i386-reverse.exp
index f9fda5ee477..0d7e57a5854 100644
--- a/gdb/testsuite/gdb.reverse/i386-reverse.exp
+++ b/gdb/testsuite/gdb.reverse/i386-reverse.exp
@@ -19,7 +19,7 @@
 # This test tests some i386 general instructions for reverse execution.
 #
 
-if ![target_info exists gdb,can_reverse] {
+if ![supports_reverse] {
     return
 }
 
@@ -56,7 +56,7 @@ gdb_reinitialize_dir $srcdir/$subdir
 gdb_load ${binfile}
 runto main
 
-if [target_info exists gdb,use_precord] {
+if [supports_process_record] {
     # Activate process record/replay
     gdb_test_no_output "record" "Turn on process record"
 }
diff --git a/gdb/testsuite/gdb.reverse/i386-sse-reverse.exp b/gdb/testsuite/gdb.reverse/i386-sse-reverse.exp
index 3e7664342bc..2641b3a2b17 100644
--- a/gdb/testsuite/gdb.reverse/i386-sse-reverse.exp
+++ b/gdb/testsuite/gdb.reverse/i386-sse-reverse.exp
@@ -19,7 +19,7 @@
 # This test tests some i386 general instructions for reverse execution.
 #
 
-if ![target_info exists gdb,can_reverse] {
+if ![supports_reverse] {
     return
 }
 
@@ -57,7 +57,7 @@ gdb_reinitialize_dir $srcdir/$subdir
 gdb_load ${binfile}
 runto main
 
-if [target_info exists gdb,use_precord] {
+if [supports_process_record] {
     # Activate process record/replay
     gdb_test_no_output "record" "Turn on process record"
 }
diff --git a/gdb/testsuite/gdb.reverse/machinestate-precsave.exp b/gdb/testsuite/gdb.reverse/machinestate-precsave.exp
index a2f2515aefe..adc58dab51d 100644
--- a/gdb/testsuite/gdb.reverse/machinestate-precsave.exp
+++ b/gdb/testsuite/gdb.reverse/machinestate-precsave.exp
@@ -36,7 +36,7 @@
 #
 
 # This test suitable only for process record-replay
-if ![target_info exists gdb,use_precord] {
+if ![supports_process_record] {
     return
 }
 
@@ -57,7 +57,7 @@ set endmain   [gdb_get_line_number " end main "   $srcfile]
 
 runto main
 
-if [target_info exists gdb,use_precord] {
+if [supports_process_record] {
     # Activate process record/replay
     gdb_test_no_output "record" "Turn on process record"
 }
diff --git a/gdb/testsuite/gdb.reverse/machinestate.exp b/gdb/testsuite/gdb.reverse/machinestate.exp
index bc2516e09a7..d51a4a3a167 100644
--- a/gdb/testsuite/gdb.reverse/machinestate.exp
+++ b/gdb/testsuite/gdb.reverse/machinestate.exp
@@ -35,7 +35,7 @@
 #   Test forward replay
 #
 
-if ![target_info exists gdb,can_reverse] {
+if ![supports_reverse] {
     return
 }
 
@@ -56,7 +56,7 @@ set endmain   [gdb_get_line_number " end main "   $srcfile]
 
 runto main
 
-if [target_info exists gdb,use_precord] {
+if [supports_process_record] {
     # Activate process record/replay
     gdb_test_no_output "record" "Turn on process record"
 }
diff --git a/gdb/testsuite/gdb.reverse/next-reverse-bkpt-over-sr.exp b/gdb/testsuite/gdb.reverse/next-reverse-bkpt-over-sr.exp
index 9a95dca1ced..187eb24c760 100644
--- a/gdb/testsuite/gdb.reverse/next-reverse-bkpt-over-sr.exp
+++ b/gdb/testsuite/gdb.reverse/next-reverse-bkpt-over-sr.exp
@@ -23,7 +23,7 @@
 # the same location as the step-resume breakpoint isn't ignored.
 #
 
-if ![target_info exists gdb,can_reverse] {
+if ![supports_reverse] {
     return
 }
 
@@ -39,7 +39,7 @@ if ![runto_main] then {
     return 0
 }
 
-if [target_info exists gdb,use_precord] {
+if [supports_process_record] {
     # Activate process record/replay
     gdb_test_no_output "record" "Turn on process record"
 }
diff --git a/gdb/testsuite/gdb.reverse/sigall-precsave.exp b/gdb/testsuite/gdb.reverse/sigall-precsave.exp
index 94144d33ee1..a8c4184239a 100644
--- a/gdb/testsuite/gdb.reverse/sigall-precsave.exp
+++ b/gdb/testsuite/gdb.reverse/sigall-precsave.exp
@@ -18,7 +18,7 @@ if [target_info exists gdb,nosignals] {
     return
 }
 
-if ![target_info exists gdb,can_reverse] {
+if ![supports_reverse] {
     return
 }
 
@@ -172,7 +172,7 @@ gdb_load $binfile
 
 runto gen_ABRT
 
-if [target_info exists gdb,use_precord] {
+if [supports_process_record] {
     # Activate process record/replay
     gdb_test_no_output "record" "Turn on process record"
 }
diff --git a/gdb/testsuite/gdb.reverse/sigall-reverse.exp b/gdb/testsuite/gdb.reverse/sigall-reverse.exp
index d152965bb50..f4bd0854cf3 100644
--- a/gdb/testsuite/gdb.reverse/sigall-reverse.exp
+++ b/gdb/testsuite/gdb.reverse/sigall-reverse.exp
@@ -18,7 +18,7 @@ if [target_info exists gdb,nosignals] {
     return
 }
 
-if ![target_info exists gdb,can_reverse] {
+if ![supports_reverse] {
     return
 }
 
@@ -172,7 +172,7 @@ gdb_load $binfile
 
 runto gen_ABRT
 
-if [target_info exists gdb,use_precord] {
+if [supports_process_record] {
     # Activate process record/replay
     gdb_test_no_output "record" "Turn on process record"
 }
diff --git a/gdb/testsuite/gdb.reverse/solib-precsave.exp b/gdb/testsuite/gdb.reverse/solib-precsave.exp
index be6502fe3e2..71b9ce3a946 100644
--- a/gdb/testsuite/gdb.reverse/solib-precsave.exp
+++ b/gdb/testsuite/gdb.reverse/solib-precsave.exp
@@ -17,7 +17,7 @@
 # with shared libraries and a logfile.
 
 # This test suitable only for process record-replay
-if ![target_info exists gdb,use_precord] {
+if ![supports_process_record] {
     return
 }
 
@@ -54,7 +54,7 @@ gdb_load ${binfile}
 
 runto main
 
-if [target_info exists gdb,use_precord] {
+if [supports_process_record] {
     # Activate process record/replay
     gdb_test_no_output "record" "Turn on process record"
 }
diff --git a/gdb/testsuite/gdb.reverse/solib-reverse.exp b/gdb/testsuite/gdb.reverse/solib-reverse.exp
index 1a516051c19..f57616cb67a 100644
--- a/gdb/testsuite/gdb.reverse/solib-reverse.exp
+++ b/gdb/testsuite/gdb.reverse/solib-reverse.exp
@@ -16,7 +16,7 @@
 # This file is part of the GDB testsuite.  It tests reverse debugging
 # with shared libraries.
 
-if ![target_info exists gdb,can_reverse] {
+if ![supports_reverse] {
     return
 }
 
@@ -53,7 +53,7 @@ gdb_load ${binfile}
 
 runto main
 
-if [target_info exists gdb,use_precord] {
+if [supports_process_record] {
     # Activate process record/replay
     gdb_test_no_output "record" "Turn on process record"
 }
diff --git a/gdb/testsuite/gdb.reverse/step-precsave.exp b/gdb/testsuite/gdb.reverse/step-precsave.exp
index e8611165c07..da56bffd2a7 100644
--- a/gdb/testsuite/gdb.reverse/step-precsave.exp
+++ b/gdb/testsuite/gdb.reverse/step-precsave.exp
@@ -21,7 +21,7 @@
 #
 
 # This test suitable only for process record-replay
-if ![target_info exists gdb,use_precord] {
+if ![supports_process_record] {
     return
 }
 
@@ -34,7 +34,7 @@ if { [prepare_for_testing $testfile.exp $testfile $srcfile] } {
 
 runto main
 
-if [target_info exists gdb,use_precord] {
+if [supports_process_record] {
     # Activate process record/replay
     gdb_test_no_output "record" "Turn on process record"
 }
diff --git a/gdb/testsuite/gdb.reverse/step-reverse.exp b/gdb/testsuite/gdb.reverse/step-reverse.exp
index dd3bc70e9a1..9720f41c020 100644
--- a/gdb/testsuite/gdb.reverse/step-reverse.exp
+++ b/gdb/testsuite/gdb.reverse/step-reverse.exp
@@ -20,7 +20,7 @@
 # Test step and next in reverse
 #
 
-if ![target_info exists gdb,can_reverse] {
+if ![supports_reverse] {
     return
 }
 
@@ -33,7 +33,7 @@ if { [prepare_for_testing $testfile.exp $testfile $srcfile] } {
 
 runto main
 
-if [target_info exists gdb,use_precord] {
+if [supports_process_record] {
     # Activate process record/replay
     gdb_test_no_output "record" "Turn on process record"
 }
diff --git a/gdb/testsuite/gdb.reverse/until-precsave.exp b/gdb/testsuite/gdb.reverse/until-precsave.exp
index f903d5feed4..edf1a02c9a8 100644
--- a/gdb/testsuite/gdb.reverse/until-precsave.exp
+++ b/gdb/testsuite/gdb.reverse/until-precsave.exp
@@ -17,7 +17,7 @@
 # 'advance' in precord logfile.
 
 # This test suitable only for process record-replay
-if ![target_info exists gdb,use_precord] {
+if ![supports_process_record] {
     return
 }
 
@@ -38,7 +38,7 @@ set bp_location21 [gdb_get_line_number "set breakpoint 21 here"]
 
 runto main
 
-if [target_info exists gdb,use_precord] {
+if [supports_process_record] {
     # Activate process record/replay
     gdb_test_no_output "record" "Turn on process record"
 }
diff --git a/gdb/testsuite/gdb.reverse/until-reverse.exp b/gdb/testsuite/gdb.reverse/until-reverse.exp
index 0aeffe8c2ff..65adba1a372 100644
--- a/gdb/testsuite/gdb.reverse/until-reverse.exp
+++ b/gdb/testsuite/gdb.reverse/until-reverse.exp
@@ -16,7 +16,7 @@
 # This file is part of the GDB testsuite.  It tests 'until' and 
 # 'advance' in reverse debugging.
 
-if ![target_info exists gdb,can_reverse] {
+if ![supports_reverse] {
     return
 }
 
@@ -37,7 +37,7 @@ set bp_location21 [gdb_get_line_number "set breakpoint 21 here"]
 
 runto main
 
-if [target_info exists gdb,use_precord] {
+if [supports_process_record] {
     # Activate process record/replay
     gdb_test_no_output "record" "Turn on process record"
 }
diff --git a/gdb/testsuite/gdb.reverse/watch-precsave.exp b/gdb/testsuite/gdb.reverse/watch-precsave.exp
index 1eaefd0b43b..b2f661812cd 100644
--- a/gdb/testsuite/gdb.reverse/watch-precsave.exp
+++ b/gdb/testsuite/gdb.reverse/watch-precsave.exp
@@ -18,7 +18,7 @@
 # debugging with watchpoints.
 
 # This test suitable only for process record-replay
-if ![target_info exists gdb,use_precord] {
+if ![supports_process_record] {
     return
 }
 
@@ -32,7 +32,7 @@ if { [prepare_for_testing $testfile.exp $testfile $srcfile] } {
 
 runto main
 
-if [target_info exists gdb,use_precord] {
+if [supports_process_record] {
     # Activate process record/replay
     gdb_test_no_output "record" "Turn on process record"
 }
diff --git a/gdb/testsuite/gdb.reverse/watch-reverse.exp b/gdb/testsuite/gdb.reverse/watch-reverse.exp
index ba91e9baffa..70adecf779d 100644
--- a/gdb/testsuite/gdb.reverse/watch-reverse.exp
+++ b/gdb/testsuite/gdb.reverse/watch-reverse.exp
@@ -18,7 +18,7 @@
 # with watchpoints.
 
 
-if ![target_info exists gdb,can_reverse] {
+if ![supports_reverse] {
     return
 }
 
@@ -32,7 +32,7 @@ if { [prepare_for_testing $testfile.exp $testfile $srcfile] } {
 
 runto main
 
-if [target_info exists gdb,use_precord] {
+if [supports_process_record] {
     # Activate process record/replay
     gdb_test_no_output "record" "Turn on process record"
 }
diff --git a/gdb/testsuite/lib/gdb.exp b/gdb/testsuite/lib/gdb.exp
index f1900ef76e6..3f0bffde56f 100644
--- a/gdb/testsuite/lib/gdb.exp
+++ b/gdb/testsuite/lib/gdb.exp
@@ -1546,6 +1546,36 @@ proc can_single_step_to_signal_handler {} {
     return 1
 }
 
+# Return 1 if target supports process record, otherwise return 0.
+
+proc supports_process_record {} {
+
+    if [target_info exists gdb,use_precord] {
+	return [target_info gdb,use_precord]
+    }
+
+    if { [istarget "x86_64-*-linux*"] || [istarget "i\[34567\]86-*-linux*"] } {
+	return 1
+    }
+
+    return 0
+}
+
+# Return 1 if target supports reverse debugging, otherwise return 0.
+
+proc supports_reverse {} {
+
+    if [target_info exists gdb,can_reverse] {
+	return [target_info gdb,can_reverse]
+    }
+
+    if { [istarget "x86_64-*-linux*"] || [istarget "i\[34567\]86-*-linux*"] } {
+	return 1
+    }
+
+    return 0
+}
+
 # Return 1 if target is ILP32.
 # This cannot be decided simply from looking at the target string,
 # as it might depend on externally passed compiler options like -m64.