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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.
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@ -1,3 +1,7 @@
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2018-01-18 Andreas Arnez <arnez@linux.vnet.ibm.com>
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* gdb.arch/s390-tdbregs.exp: Add the compile option -msoft-float.
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2018-01-17 Mike Gulick <mgulick@mathworks.com>
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PR gdb/16577
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@ -26,7 +26,10 @@ if { ![istarget s390-*-*] && ![istarget s390x-*-* ] } {
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standard_testfile .c
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if { [prepare_for_testing "failed to prepare" $testfile $srcfile] } {
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# Use soft float, so the compiler doesn't use floating-point or vector
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# instructions.
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if { [prepare_for_testing "failed to prepare" $testfile $srcfile \
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[list "debug" "additional_flags=-msoft-float"]] } {
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return -1
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}
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