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Postgres FD Implementation
Commit 3c5665d0 authored by Bruce Momjian's avatar Bruce Momjian
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Add more sparcv8plus comments.

parent d6a35c81
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src/backend/port/tas/solaris_sparc.s
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...@@ -22,13 +22,13 @@ pg_atomic_cas: ...@@ -22,13 +22,13 @@ pg_atomic_cas:
! by a sparcv8 CPU. gcc continues to use "ldstub" because ! by a sparcv8 CPU. gcc continues to use "ldstub" because
! there is no indication which sparc version it is targeting. ! there is no indication which sparc version it is targeting.
! !
! There actually is a trick for embedding "cas" for a compiler ! It is actually possible to use "cas" for sparcv8 binaries if
! that is targeting sparcv8: ! -xarch=v8plus is used for compilation. There is actually a
! trick for embedding "cas" in a sparcv8-targeted compiler, but
! it can only be run on a sparcv8plus cpus:
! !
! http://cvs.opensolaris.org/source/xref/on/usr/src/lib/libc/sparc/threads/sparc.il ! http://cvs.opensolaris.org/source/xref/on/usr/src/lib/libc/sparc/threads/sparc.il
! !
! It is actually possible to use "cas" for sparcv8 binaries if
! -xarch=v8plus is used for compilation.
#ifdef __sparcv9 #ifdef __sparcv9
cas [%o0],%o2,%o1 cas [%o0],%o2,%o1
......
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