testsuite: Fix gdb.btrace/tailcall-only.exp errors on x86_64-m32

$ runtest 'CC_FOR_TARGET=gcc -m32' gdb.btrace/tailcall-only.exp
Running ./gdb.btrace/tailcall-only.exp ...
gdb compile failed, tailcall-only.c: Assembler messages:
tailcall-only.c:142: Error: cannot represent relocation type BFD_RELOC_64
[...]
tailcall-only.c:425: Error: cannot represent relocation type BFD_RELOC_64

It works for the other x86 arch combinations:

On Mon, 11 Apr 2016 08:44:23 +0200, Metzger, Markus T wrote:
I'm setting the target triplet to "i686-unknown-linux" in my m32 configuration.
Like this:

set target_triplet "i686-unknown-linux"
set_board_info cflags "-m32"
set_board_info cppflags "-m32"

On Wed, 20 Jul 2016 16:02:20 +0200, Pedro Alves wrote:
There's no reason you should _not_ set it.

But, multilib-style testing with --target_board=unix\{-m64,-m32\} etc.
should work _too_, IMO.

gdb/testsuite/ChangeLog
2016-07-20  Jan Kratochvil  <jan.kratochvil@redhat.com>

	* gdb.btrace/tailcall-only.exp: Use is_lp64_target check.

diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog
index 3ef78b7..3a1bdfd 100644 (file)
--- a/gdb/testsuite/ChangeLog
+++ b/gdb/testsuite/ChangeLog
@@ -1,5 +1,9 @@
 2016-07-20  Jan Kratochvil  <jan.kratochvil@redhat.com>
 
+       * gdb.btrace/tailcall-only.exp: Use is_lp64_target check.
+
+2016-07-20  Jan Kratochvil  <jan.kratochvil@redhat.com>
+
        * gdb.python/py-unwind.exp: Test also ![is_lp64_target].
 
 2016-07-19  Pedro Alves  <palves@redhat.com>

diff --git a/gdb/testsuite/gdb.btrace/tailcall-only.exp b/gdb/testsuite/gdb.btrace/tailcall-only.exp
index 44501f5..50837bf 100644 (file)
--- a/gdb/testsuite/gdb.btrace/tailcall-only.exp
+++ b/gdb/testsuite/gdb.btrace/tailcall-only.exp
@@ -35,9 +35,9 @@ 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-*-*"]} {
+} elseif {[istarget "x86_64-*-*"] && [is_lp64_target]} {
        standard_testfile x86_64-tailcall-only.S
-} elseif {[istarget "i?86-*-*"]} {
+} elseif {[istarget "i?86-*-*"] || [istarget "x86_64-*-*"]} {
        standard_testfile i686-tailcall-only.S
 } else {
     verbose "Skipping ${testfile}."