diff options
| author | Bruce Momjian <bruce@momjian.us> | 2006-05-18 00:05:01 +0000 |
|---|---|---|
| committer | Bruce Momjian <bruce@momjian.us> | 2006-05-18 00:05:01 +0000 |
| commit | 924b9d62b45ffca8d4f4c243ed81ddf7a17fe612 (patch) | |
| tree | 62ee3843c71d6fe07a66f35f8053c07bb51d6b89 /src | |
| parent | 407885ea3b709c34abc4541dacba7b19e5fcf0b4 (diff) | |
| download | postgresql-924b9d62b45ffca8d4f4c243ed81ddf7a17fe612.tar.gz postgresql-924b9d62b45ffca8d4f4c243ed81ddf7a17fe612.zip | |
Add simplified sparc8 ASM for solaris_sparc.s, from Alan Stange.
Diffstat (limited to 'src')
| -rw-r--r-- | src/backend/port/tas/solaris_sparc.s | 14 |
1 files changed, 6 insertions, 8 deletions
diff --git a/src/backend/port/tas/solaris_sparc.s b/src/backend/port/tas/solaris_sparc.s index 59c44874998..51ba569f8d7 100644 --- a/src/backend/port/tas/solaris_sparc.s +++ b/src/backend/port/tas/solaris_sparc.s @@ -19,21 +19,19 @@ pg_atomic_cas: ! "cas" only works on sparcv9 chips, and requies a compiler ! that is targeting sparcv9. It will fail on a compiler ! targeting sparcv8, and of course will not be understood - ! by a sparcv8 CPU. If this fails on existing Solaris - ! systems, we need to use a !defined(__sparcv9) test - ! to fall back to the old "ldstub" call for sparcv8 compiles. - ! gcc continues to use "ldstub" because there is no indication - ! which sparc version it is targeting. + ! by a sparcv8 CPU. gcc continues to use "ldstub" because + ! there is no indication which sparc version it is targeting. ! ! There actually is a trick for embedding "cas" for a compiler ! that is targeting sparcv8: ! ! http://cvs.opensolaris.org/source/xref/on/usr/src/lib/libc/sparc/threads/sparc.il - ! - ! This might work for sparc8: - ! ldstub [%o0],%o1 ! moves only a byte +#ifdef __sparcv9 cas [%o0],%o2,%o1 +#else + ldstub [%o0],%o1 +#endif mov %o1,%o0 retl nop |