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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2021-08-13 13:58:47 -0400 |
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| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2021-08-13 13:59:44 -0400 |
| commit | 4ffbd55d9346b6a8ba391c6df9a0f692c4b61ace (patch) | |
| tree | 5eed3d03e39ad492237c83cf76e62f9e6ab99ae3 /src/backend/regex/regcomp.c | |
| parent | e546d1d052f220b077cf4d9fee8e6d5bf85911c5 (diff) | |
| download | postgresql-4ffbd55d9346b6a8ba391c6df9a0f692c4b61ace.tar.gz postgresql-4ffbd55d9346b6a8ba391c6df9a0f692c4b61ace.zip | |
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
Diffstat (limited to 'src/backend/regex/regcomp.c')
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