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Fix regression on ARM after Target FP patches

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Commit edd079d9f6ca2f9ad21322b742269aec5de61190 exposed a pre-existing bug
in convert_doublest_to_floatformat.  In the specific case of converting
a zero value to a floatformat using a "special" byteorder (i.e. neither
floatformat_little nor floatformat_big), the output buffer was actually
left uninitialized.

gdb/ChangeLog:
2017-11-03  Ulrich Weigand  <uweigand@de.ibm.com>

	* doublest.c (convert_doublest_to_floatformat): Fix uninitialized
	output when converting a zero value to a special byteorder format.
This commit is contained in:
Ulrich Weigand
2017-11-03 16:07:23 +01:00
parent fdddd2900f
commit 67fa57cfa5
2 changed files with 6 additions and 1 deletions
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5
gdb/ChangeLog
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@ -1,3 +1,8 @@
2017-11-03 Ulrich Weigand <uweigand@de.ibm.com>
* doublest.c (convert_doublest_to_floatformat): Fix uninitialized
output when converting a zero value to a special byteorder format.
2017-11-02 Yao Qi <yao.qi@linaro.org>
* frame.c (do_frame_register_read): Remove aspace.

2
gdb/doublest.c
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@ -387,7 +387,7 @@ convert_doublest_to_floatformat (const struct floatformat *fmt,
}
if (dfrom == 0)
return; /* Result is zero */
goto finalize_byteorder; /* Result is zero */
if (dfrom != dfrom) /* Result is NaN */
{
/* From is NaN */