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| author | Aurelien Jarno <aurelien@aurel32.net> | 2014-05-20 14:41:44 +0200 |
|---|---|---|
| committer | Aurelien Jarno <aurelien@aurel32.net> | 2014-05-20 18:44:28 +0200 |
| commit | 4406c41c1d6088abf01c216e49700cd3f8f01fcc (patch) | |
| tree | 6f257fdf8bf4d27212a380a049548f24cdf7f389 /NEWS | |
| parent | ae75a883f2eb312165d1e1f423cea320f3c92ef5 (diff) | |
| download | glibc-4406c41c1d6088abf01c216e49700cd3f8f01fcc.tar.gz | |
Fix strtold on 32-bit sparc (and probably others) (BZ #16965)
This patch fixes an issue observed running the tst-strtod-round test on
32 bit sparc. In some conditions, strtold calls round_and_return, which in
turn calls __mpn_rshift with cnt = 0, while stdlib/rshift.c explicitly says
that cnts should satisfy 0 < CNT < BITS_PER_MP_LIMB. In this case, the code
end up doing a logical shift right of the same amount than the register,
which is undefined in the C standard.
Due to this bug, 32-bit sparc does not correctly convert the value
"0x1p-16446", but it is likely that other architectures are also
affected for other input values.
Diffstat (limited to 'NEWS')
| -rw-r--r-- | NEWS | 2 |
1 files changed, 1 insertions, 1 deletions
@@ -18,7 +18,7 @@ Version 2.20 16760, 16770, 16786, 16789, 16791, 16799, 16800, 16815, 16823, 16824, 16831, 16838, 16849, 16854, 16876, 16877, 16885, 16888, 16890, 16912, 16915, 16916, 16917, 16922, 16927, 16928, 16932, 16943, 16958, 16966, - 16967. + 16967, 16965. * The minimum Linux kernel version that this version of the GNU C Library can be used with is 2.6.32. |