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author | Rich Felker <dalias@aerifal.cx> | 2019-10-13 17:21:36 -0400 |
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committer | Rich Felker <dalias@aerifal.cx> | 2019-10-13 17:21:36 -0400 |
commit | 716745e00e304a650a8eef57c15fbd326168096e (patch) | |
tree | 97d03a73a95aea07aad13e79dda469ddaca4dd73 /src/math/log_data.h | |
parent | db3cc9a319c788cf5241ea68d3fa86b43f35733e (diff) | |
download | musl-716745e00e304a650a8eef57c15fbd326168096e.tar.gz |
fix aliasing-based undefined behavior in mbsrtowcs
mbsrtowcs contains "vectorized" loops to quickly step over bytes
without the high bit set; these have undefined behavior by virtue of
aliasing uint32_t over top of char data for the accesses.
commit 4d0a82170a25464c39522d7190b9fe302045ddb2 fixed the
corresponding usage in string functions by using the may_alias
attribute conditional on __GNUC__ and disabled the vectorized code in
its absence. do the same for mbsrtowcs.
Diffstat (limited to 'src/math/log_data.h')
0 files changed, 0 insertions, 0 deletions