-
Bug
-
Resolution: Fixed
-
P4
-
8
-
None
-
b43
-
generic
-
generic
| Issue | Fix Version | Assignee | Priority | Status | Resolution | Resolved In Build |
|---|---|---|---|---|---|---|
| JDK-2225498 | 7u6 | Philip Race | P4 | Closed | Fixed | b15 |
At present, the building of ExtensionSubtables.cpp produces a warning:
../../../src/share/native/sun/font/layout/ExtensionSubtables.cpp:57:31:
warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
due to this code:
// read a 32-bit value that might only be 16-bit-aligned in memory
#define READ_LONG(code) (le_uint32)((SWAPW(*(le_uint16*)&code) << 16) + SWAPW(*(((le_uint16*)&code) + 1)))
where code is a le_uint32.
This can be avoided by setting -fno-strict-aliasing, as done in this webrev:
../../../src/share/native/sun/font/layout/ExtensionSubtables.cpp:57:31:
warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
due to this code:
// read a 32-bit value that might only be 16-bit-aligned in memory
#define READ_LONG(code) (le_uint32)((SWAPW(*(le_uint16*)&code) << 16) + SWAPW(*(((le_uint16*)&code) + 1)))
where code is a le_uint32.
This can be avoided by setting -fno-strict-aliasing, as done in this webrev:
- backported by
-
JDK-2225498 Building ExtensionSubtables.cpp should use -fno-strict-aliasing
-
- Closed
-