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| author | Andy McFadden <fadden@android.com> | 2010-06-17 12:36:00 -0700 |
|---|---|---|
| committer | Andy McFadden <fadden@android.com> | 2010-06-18 12:43:08 -0700 |
| commit | c35a2ef53d0cccd6f924eeba36633220ec67c32e (patch) | |
| tree | 3dca5c629067edc9f6968d11b91621198de18387 /vm/Atomic.h | |
| parent | 54c91f8f33fc12d741aaa0dcdb375991e252c994 (diff) | |
| download | android_dalvik-c35a2ef53d0cccd6f924eeba36633220ec67c32e.tar.gz android_dalvik-c35a2ef53d0cccd6f924eeba36633220ec67c32e.tar.bz2 android_dalvik-c35a2ef53d0cccd6f924eeba36633220ec67c32e.zip | |
Add opcodes for volatile field accesses
This adds instructions for {i,s}{get,put}{,-object}-volatile, for a
total of eight new instructions.
On SMP systems, these instructions will be substituted in for existing
field access instructions, either by dexopt or during just-in-time
verification. Unlike the wide-volatile instructions, these will not be
used at all when the VM is not built for SMP.
(Ideally we'd omit the volatile instruction implementations entirely on
non-SMP builds, but that requires a little work in gen-mterp.py.)
The change defines and implements the opcodes and support methods, but
does not cause them to be used.
Also, changed dvmQuasiAtomicRead64's argument to be const.
Change-Id: I9e44fe881e87f27aa41f6c6e898ec4402cb5493e
Diffstat (limited to 'vm/Atomic.h')
| -rw-r--r-- | vm/Atomic.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/vm/Atomic.h b/vm/Atomic.h index 0585c95cf..6c3a66f6b 100644 --- a/vm/Atomic.h +++ b/vm/Atomic.h @@ -43,7 +43,7 @@ int64_t dvmQuasiAtomicSwap64(int64_t value, volatile int64_t* addr); /* * Read the 64-bit value at "addr". */ -int64_t dvmQuasiAtomicRead64(volatile int64_t* addr); +int64_t dvmQuasiAtomicRead64(volatile const int64_t* addr); /* * If the value at "addr" is equal to "oldvalue", replace it with "newvalue" |