Thread: pgsql: pg_attribute_no_sanitize_alignment() macro
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 Branch ------ master Details ------- https://git.postgresql.org/pg/commitdiff/993bdb9f935a751935a03c80d30857150ba2b645 Modified Files -------------- src/include/c.h | 12 ++++++++++++ src/port/pg_crc32c_sse42.c | 1 + 2 files changed, 13 insertions(+)