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Fix bad shift in soft-fp (bug 7006).

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This commit is contained in:
Joseph Myers 2013-06-21 19:00:43 +00:00
parent f3bc5e5a3e
commit 8fdda7afb8
3 changed files with 21 additions and 14 deletions
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6
ChangeLog
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@ -1,3 +1,9 @@
2013-06-21 Joseph Myers <joseph@codesourcery.com>
[BZ #7006]
* soft-fp/op-common.h (_FP_FROM_INT): Do not call _FP_FRAC_SLL
with a shift of 0 bits.
2013-06-21 Maciej W. Rozycki <macro@codesourcery.com>
* dlfcn/Makefile (tststatic2-ENV): Redefine in terms of

24
NEWS
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@ -9,18 +9,18 @@ Version 2.18
* The following bugs are resolved with this release:
2546, 2560, 5159, 6809, 10060, 10062, 10357, 10686, 11120, 11561, 12387,
12515, 12723, 13550, 13889, 13951, 13988, 14142, 14176, 14200, 14256,
14280, 14293, 14317, 14327, 14478, 14496, 14582, 14686, 14812, 14888,
14894, 14907, 14908, 14909, 14920, 14952, 14964, 14981, 14982, 14985,
14991, 14994, 14996, 15000, 15003, 15006, 15007, 15014, 15020, 15023,
15036, 15054, 15055, 15062, 15078, 15084, 15085, 15086, 15100, 15160,
15214, 15221, 15232, 15234, 15283, 15285, 15287, 15304, 15305, 15307,
15309, 15327, 15330, 15335, 15336, 15337, 15339, 15342, 15346, 15359,
15361, 15366, 15380, 15381, 15394, 15395, 15405, 15406, 15409, 15416,
15418, 15419, 15423, 15424, 15426, 15429, 15431, 15432, 15441, 15442,
15448, 15465, 15480, 15485, 15488, 15490, 15492, 15493, 15497, 15506,
15529, 15536, 15553, 15577, 15583, 15618, 15627, 15631, 15654.
2546, 2560, 5159, 6809, 7006, 10060, 10062, 10357, 10686, 11120, 11561,
12387, 12515, 12723, 13550, 13889, 13951, 13988, 14142, 14176, 14200,
14256, 14280, 14293, 14317, 14327, 14478, 14496, 14582, 14686, 14812,
14888, 14894, 14907, 14908, 14909, 14920, 14952, 14964, 14981, 14982,
14985, 14991, 14994, 14996, 15000, 15003, 15006, 15007, 15014, 15020,
15023, 15036, 15054, 15055, 15062, 15078, 15084, 15085, 15086, 15100,
15160, 15214, 15221, 15232, 15234, 15283, 15285, 15287, 15304, 15305,
15307, 15309, 15327, 15330, 15335, 15336, 15337, 15339, 15342, 15346,
15359, 15361, 15366, 15380, 15381, 15394, 15395, 15405, 15406, 15409,
15416, 15418, 15419, 15423, 15424, 15426, 15429, 15431, 15432, 15441,
15442, 15448, 15465, 15480, 15485, 15488, 15490, 15492, 15493, 15497,
15506, 15529, 15536, 15553, 15577, 15583, 15618, 15627, 15631, 15654.
* CVE-2013-0242 Buffer overrun in regexp matcher has been fixed (Bugzilla
#15078).

5
soft-fp/op-common.h
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@ -1163,8 +1163,9 @@ do { \
{ \
/* Exactly representable; shift left. */ \
_FP_FRAC_DISASSEMBLE_##wc(X, ur_, rsize); \
_FP_FRAC_SLL_##wc(X, (_FP_EXPBIAS_##fs \
+ _FP_FRACBITS_##fs - 1 - X##_e)); \
if (_FP_EXPBIAS_##fs + _FP_FRACBITS_##fs - 1 - X##_e > 0) \
_FP_FRAC_SLL_##wc(X, (_FP_EXPBIAS_##fs \
+ _FP_FRACBITS_##fs - 1 - X##_e)); \
} \
else \
{ \