btrace, testsuite: fix assembly source file selection

Some btrace tests use assembly source files.  They use the target triplet to
distinguish between x86_64 and ia32 ISA.  This does not work for -m32 tests
without setting the target triplet to i686-?-?.

Instead use is_amd64_regs_target to distinguish between x86_64 and ia32 ISA.

See also https://sourceware.org/ml/gdb-patches/2016-07/msg00256.html.

testsuite/
	* gdb.btrace/record_goto.exp: Use is_amd64_regs_target for selecting
	assembly source files.
	* gdb.btrace/stepi.exp: Use is_amd64_regs_target for selecting
	assembly source files.
	* gdb.btrace/tailcall.exp: Use is_amd64_regs_target for selecting
	assembly source files.
	* gdb.btrace/tailcall-only.exp: Use is_amd64_regs_target for selecting
	assembly source files.

5 files changed, 42 insertions, 18 deletions

diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog
index 609d262..aa7aa28 100644
--- a/gdb/testsuite/ChangeLog
+++ b/gdb/testsuite/ChangeLog
@@ -1,3 +1,14 @@
+2016-07-26  Markus Metzger  <markus.t.metzger@intel.com>
+
+	* gdb.btrace/record_goto.exp: se is_amd64_regs_target for
+	selecting assembly source files.
+	* gdb.btrace/stepi.exp: se is_amd64_regs_target for selecting
+	assembly source files.
+	* gdb.btrace/tailcall.exp: se is_amd64_regs_target for selecting
+	assembly source files.
+	* gdb.btrace/tailcall-only.exp: se is_amd64_regs_target for
+	selecting assembly source files.
+
 2016-07-25  Simon Marchi  <simon.marchi@ericsson.com>
 
 	* gdb.base/new-ui.exp (do_test_invalid_args): New
diff --git a/gdb/testsuite/gdb.btrace/record_goto.exp b/gdb/testsuite/gdb.btrace/record_goto.exp
index 50b259a..7df33bc 100644
--- a/gdb/testsuite/gdb.btrace/record_goto.exp
+++ b/gdb/testsuite/gdb.btrace/record_goto.exp
@@ -33,10 +33,12 @@ if [info exists COMPILE] {
     # make check RUNTESTFLAGS="gdb.btrace/record_goto.exp COMPILE=1"
     standard_testfile record_goto.c
     lappend opts debug
-} elseif {[istarget "x86_64-*-*"]} {
-	standard_testfile x86_64-record_goto.S
-} elseif {[istarget "i?86-*-*"]} {
-	standard_testfile i686-record_goto.S
+} elseif {[istarget "i?86-*-*"] || [istarget "x86_64-*-*"]} {
+	if {[is_amd64_regs_target]} {
+		standard_testfile x86_64-record_goto.S
+	} else {
+		standard_testfile i686-record_goto.S
+	}
 } else {
     verbose "Skipping ${testfile}."
     return -1
diff --git a/gdb/testsuite/gdb.btrace/stepi.exp b/gdb/testsuite/gdb.btrace/stepi.exp
index 3aff8cb..b21e4e5 100644
--- a/gdb/testsuite/gdb.btrace/stepi.exp
+++ b/gdb/testsuite/gdb.btrace/stepi.exp
@@ -27,12 +27,19 @@ if { [skip_btrace_tests] } { return -1 }
 #
 # Luckily, they are similar enough that a single test script can handle
 # both.
-if {[istarget "x86_64-*-*"]} {
-	standard_testfile x86_64-record_goto.S
-} elseif {[istarget "i?86-*-*"]} {
-	standard_testfile i686-record_goto.S
+if [info exists COMPILE] {
+    # make check RUNTESTFLAGS="gdb.btrace/stepi.exp COMPILE=1"
+    standard_testfile record_goto.c
+    lappend opts debug
+} elseif {[istarget "i?86-*-*"] || [istarget "x86_64-*-*"]} {
+	if {[is_amd64_regs_target]} {
+		standard_testfile x86_64-record_goto.S
+	} else {
+		standard_testfile i686-record_goto.S
+	}
 } else {
-	return -1
+    verbose "Skipping ${testfile}."
+    return -1
 }
 
 # start inferior
diff --git a/gdb/testsuite/gdb.btrace/tailcall-only.exp b/gdb/testsuite/gdb.btrace/tailcall-only.exp
index 50837bf..494e2e8 100644
--- a/gdb/testsuite/gdb.btrace/tailcall-only.exp
+++ b/gdb/testsuite/gdb.btrace/tailcall-only.exp
@@ -35,13 +35,15 @@ if [info exists COMPILE] {
     # make check RUNTESTFLAGS="gdb.btrace/tailcall-only.exp COMPILE=1"
     standard_testfile tailcall-only.c
     lappend opts debug optimize=-O2
-} elseif {[istarget "x86_64-*-*"] && [is_lp64_target]} {
-	standard_testfile x86_64-tailcall-only.S
 } elseif {[istarget "i?86-*-*"] || [istarget "x86_64-*-*"]} {
-	standard_testfile i686-tailcall-only.S
+	if {[is_amd64_regs_target]} {
+		standard_testfile x86_64-tailcall-only.S
+	} else {
+		standard_testfile i686-tailcall-only.S
+	}
 } else {
     verbose "Skipping ${testfile}."
-    return
+    return -1
 }
 
 if [prepare_for_testing tailcall-only.exp $testfile $srcfile $opts] {
diff --git a/gdb/testsuite/gdb.btrace/tailcall.exp b/gdb/testsuite/gdb.btrace/tailcall.exp
index 22704c7..bc8afc4 100644
--- a/gdb/testsuite/gdb.btrace/tailcall.exp
+++ b/gdb/testsuite/gdb.btrace/tailcall.exp
@@ -32,13 +32,15 @@ if [info exists COMPILE] {
     # make check RUNTESTFLAGS="gdb.btrace/tailcall.exp COMPILE=1"
     standard_testfile tailcall.c
     lappend opts debug optimize=-O2
-} elseif {[istarget "x86_64-*-*"]} {
-	standard_testfile x86_64-tailcall.S
-} elseif {[istarget "i?86-*-*"]} {
-	standard_testfile i686-tailcall.S
+} elseif {[istarget "i?86-*-*"] || [istarget "x86_64-*-*"]} {
+	if {[is_amd64_regs_target]} {
+		standard_testfile x86_64-tailcall.S
+	} else {
+		standard_testfile i686-tailcall.S
+	}
 } else {
     verbose "Skipping ${testfile}."
-    return
+    return -1
 }
 
 if [prepare_for_testing tailcall.exp $testfile $srcfile $opts] {