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| author | Alexander Korotkov <akorotkov@postgresql.org> | 2021-02-12 17:14:33 +0300 |
|---|---|---|
| committer | Alexander Korotkov <akorotkov@postgresql.org> | 2021-02-12 17:23:35 +0300 |
| commit | 993bdb9f935a751935a03c80d30857150ba2b645 (patch) | |
| tree | 5744c7b3abd6a42a74abccb574595ff61f251d5e /src/backend/access/transam/commit_ts.c | |
| parent | c8b21b0378141948a2dc0ddde6f57407321787ea (diff) | |
| download | postgresql-993bdb9f935a751935a03c80d30857150ba2b645.tar.gz postgresql-993bdb9f935a751935a03c80d30857150ba2b645.zip | |
pg_attribute_no_sanitize_alignment() macro
Modern gcc and clang compilers offer alignment sanitizers, which help to detect
pointer misalignment. However, our codebase already contains x86-specific
crc32 computation code, which uses unalignment access. Thankfully, those
compilers also support the attribute, which disables alignment sanitizers at
the function level. This commit adds pg_attribute_no_sanitize_alignment(),
which wraps this attribute, and applies it to pg_comp_crc32c_sse42() function.
Discussion: https://postgr.es/m/CAPpHfdsne3%3DT%3DfMNU45PtxdhSL_J2PjLTeS8rwKnJzUR4YNd4w%40mail.gmail.com
Discussion: https://postgr.es/m/475514.1612745257%40sss.pgh.pa.us
Author: Alexander Korotkov, revised by Tom Lane
Reviewed-by: Tom Lane
Diffstat (limited to 'src/backend/access/transam/commit_ts.c')
0 files changed, 0 insertions, 0 deletions