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authorAndreas Arnez <arnez@linux.vnet.ibm.com>2018-01-18 19:41:16 +0100
committerAndreas Arnez <arnez@linux.vnet.ibm.com>2018-01-18 19:41:16 +0100
commit25d4fd80936744adfa49f133524e3f342604a1cb (patch)
tree878434010509f259b0306fe6326774246b2e798d /gdb/testsuite
parent4a17f7688fbab8f170144fa13ffcd06bc749e6ec (diff)
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S390: Use soft float in s390-tdbregs test case
The GDB test case s390-tdbregs.exp verifies GDB's handling of the "transaction diagnostic block". For simplicity, the test case uses the "transaction begin" (TBEGIN) instruction with the "allow floating-point operation" flag set to zero. But some GCC versions may indeed emit floating point or vector instructions for this test case. If this happens in the transaction, it aborts, and an endless loop results. This change tells the compiler to produce a soft-float binary, so no floating-point or vector registers are touched. gdb/testsuite/ChangeLog: * gdb.arch/s390-tdbregs.exp: Add the compile option -msoft-float.
Diffstat (limited to 'gdb/testsuite')
-rw-r--r--gdb/testsuite/ChangeLog4
-rw-r--r--gdb/testsuite/gdb.arch/s390-tdbregs.exp5
2 files changed, 8 insertions, 1 deletions
diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog
index 210c078..c3fc9c3 100644
--- a/gdb/testsuite/ChangeLog
+++ b/gdb/testsuite/ChangeLog
@@ -1,3 +1,7 @@
+2018-01-18 Andreas Arnez <arnez@linux.vnet.ibm.com>
+
+ * gdb.arch/s390-tdbregs.exp: Add the compile option -msoft-float.
+
2018-01-17 Mike Gulick <mgulick@mathworks.com>
PR gdb/16577
diff --git a/gdb/testsuite/gdb.arch/s390-tdbregs.exp b/gdb/testsuite/gdb.arch/s390-tdbregs.exp
index 53d6c50..47d9d38 100644
--- a/gdb/testsuite/gdb.arch/s390-tdbregs.exp
+++ b/gdb/testsuite/gdb.arch/s390-tdbregs.exp
@@ -26,7 +26,10 @@ if { ![istarget s390-*-*] && ![istarget s390x-*-* ] } {
standard_testfile .c
-if { [prepare_for_testing "failed to prepare" $testfile $srcfile] } {
+# Use soft float, so the compiler doesn't use floating-point or vector
+# instructions.
+if { [prepare_for_testing "failed to prepare" $testfile $srcfile \
+ [list "debug" "additional_flags=-msoft-float"]] } {
return -1
}