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authorTom Lane <tgl@sss.pgh.pa.us>2021-08-13 13:58:47 -0400
committerTom Lane <tgl@sss.pgh.pa.us>2021-08-13 13:59:43 -0400
commitc32fcac56a212b4e6bb5ba63596f60a25a18109a (patch)
tree5530de3671feeb1ddeba4e67a211bf5f4cd97f5c /src/backend/commands/functioncmds.c
parent4279e5bc8c0b3a0cb6b6d3f1316ae81cd0028447 (diff)
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Add RISC-V spinlock support in s_lock.h.
Like the ARM case, just use gcc's __sync_lock_test_and_set(); that will compile into AMOSWAP.W.AQ which does what we need. At some point it might be worth doing some work on atomic ops for RISC-V, but this should be enough for a creditable port. Back-patch to all supported branches, just in case somebody wants to try them on RISC-V. Marek Szuba Discussion: https://postgr.es/m/dea97b6d-f55f-1f6d-9109-504aa7dfa421@gentoo.org
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