diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog
index 065b1c3f5d5..eb7fe0b6160 100644
--- a/gdb/testsuite/ChangeLog
+++ b/gdb/testsuite/ChangeLog
@@ -1,3 +1,14 @@
+2018-03-23  Andrew Burgess  <andrew.burgess@embecosm.com>
+
+	* gdb.arch/amd64-disp-step-avx.exp: Remove unneeded assembler flag
+	option, syntax was wrong anyway.
+	* gdb.arch/arm-disp-step.exp: Likewise.
+	* gdb.arch/sparc64-regs.exp: Likewise.
+	* gdb.arch/amd64-disp-step.exp: Remove unneeded assembler flag
+	option, syntax was wrong anyway, switch to use
+	prepare_for_testing.
+	* gdb.arch/i386-disp-step.exp: Likewise.
+
 2018-03-23  Andreas Arnez  <arnez@linux.vnet.ibm.com>
 
 	* gdb.ada/exec_changed.exp: Replace "target_info exists
diff --git a/gdb/testsuite/gdb.arch/amd64-disp-step-avx.exp b/gdb/testsuite/gdb.arch/amd64-disp-step-avx.exp
index 5c20aeb35b4..1f85fa77c1a 100644
--- a/gdb/testsuite/gdb.arch/amd64-disp-step-avx.exp
+++ b/gdb/testsuite/gdb.arch/amd64-disp-step-avx.exp
@@ -25,10 +25,7 @@ if { ![istarget x86_64-*-* ] || ![is_lp64_target] } {
 
 standard_testfile .S
 
-set additional_flags "-Wa,-g"
-
-if { [prepare_for_testing "failed to prepare" ${testfile} ${srcfile} \
-	  [list debug $additional_flags]] } {
+if { [prepare_for_testing "failed to prepare" ${testfile} ${srcfile}] } {
     return -1
 }
 
diff --git a/gdb/testsuite/gdb.arch/amd64-disp-step.exp b/gdb/testsuite/gdb.arch/amd64-disp-step.exp
index 84f7e69e40e..782b75896cc 100644
--- a/gdb/testsuite/gdb.arch/amd64-disp-step.exp
+++ b/gdb/testsuite/gdb.arch/amd64-disp-step.exp
@@ -27,20 +27,10 @@ set newline "\[\r\n\]*"
 
 standard_testfile .S
 
-set additional_flags "-Wa,-g"
-
-if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable [list debug $additional_flags]] != "" } {
-    untested "failed to compile"
+if { [prepare_for_testing "failed to prepare" $testfile $srcfile] } {
     return -1
 }
 
-# Get things started.
-
-gdb_exit
-gdb_start
-gdb_reinitialize_dir $srcdir/$subdir
-gdb_load ${binfile}
-
 gdb_test "set displaced-stepping on" ""
 gdb_test "show displaced-stepping" ".* displaced stepping .* is on.*"
 
diff --git a/gdb/testsuite/gdb.arch/arm-disp-step.exp b/gdb/testsuite/gdb.arch/arm-disp-step.exp
index 760d392885e..0f33b37eaf1 100644
--- a/gdb/testsuite/gdb.arch/arm-disp-step.exp
+++ b/gdb/testsuite/gdb.arch/arm-disp-step.exp
@@ -24,9 +24,7 @@ if {![is_aarch32_target]} then {
 
 standard_testfile .S
 
-set additional_flags "-Wa,-g"
-
-if { [prepare_for_testing "failed to prepare" $testfile $srcfile [list debug $additional_flags]] } {
+if { [prepare_for_testing "failed to prepare" $testfile $srcfile] } {
     return -1
 }
 
diff --git a/gdb/testsuite/gdb.arch/i386-disp-step.exp b/gdb/testsuite/gdb.arch/i386-disp-step.exp
index ff0713cef96..d15c54be74b 100644
--- a/gdb/testsuite/gdb.arch/i386-disp-step.exp
+++ b/gdb/testsuite/gdb.arch/i386-disp-step.exp
@@ -25,20 +25,10 @@ if { ![is_x86_like_target] } then {
 
 standard_testfile .S
 
-set additional_flags "-Wa,-g"
-
-if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable [list debug $additional_flags]] != "" } {
-    untested "failed to compile"
+if { [prepare_for_testing "failed to prepare" $testfile $srcfile] } {
     return -1
 }
 
-# Get things started.
-
-gdb_exit
-gdb_start
-gdb_reinitialize_dir $srcdir/$subdir
-gdb_load ${binfile}
-
 gdb_test "set displaced-stepping on" ""
 gdb_test "show displaced-stepping" ".* displaced stepping .* is on.*"
 
diff --git a/gdb/testsuite/gdb.arch/sparc64-regs.exp b/gdb/testsuite/gdb.arch/sparc64-regs.exp
index 3e84de6dd01..6b621bbd98c 100644
--- a/gdb/testsuite/gdb.arch/sparc64-regs.exp
+++ b/gdb/testsuite/gdb.arch/sparc64-regs.exp
@@ -25,10 +25,7 @@ if ![istarget "sparc64*-*-linux*"] then {
 
 standard_testfile .S
 
-set additional_flags "-Wa,-g"
-
-if { [prepare_for_testing "failed to prepare" ${testfile} ${srcfile} \
-        [list debug $additional_flags]] } {
+if { [prepare_for_testing "failed to prepare" ${testfile} ${srcfile}] } {
     return -1
 }