Closed
Bug 745758
Opened 13 years ago
Closed 13 years ago
ipdl compiler should order members to avoid holes on 64-bit platforms
Categories
(Core :: IPC, defect)
Core
IPC
Tracking
()
RESOLVED
FIXED
mozilla14
People
(Reporter: froydnj, Assigned: froydnj)
References
Details
Attachments
(1 file)
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1.36 KB,
patch
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cjones
:
review+
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Details | Diff | Splinter Review |
Most of our ipdl-generated classes have a member layout like so:
Channel* mChannel;
int32 mId;
mozilla::ipc::IProtocolManager<mozilla::ipc::RPCChannel::RPCListener>* mManager;
State mState;
As bug 492185 pointed out, this layout produces two 4-byte "holes" on 64-bit platforms, one after mId and one after mState.
We should be smarter about laying out the members. We won't be able to pack all the holes all the time, but we can get the common cases right.
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Assignee | |
Comment 1•13 years ago
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Like this.
I don't think we can do much with the other two cases, but judging by the generated headers, this is the only case that really matters.
Attachment #615380 -
Flags: review?(jones.chris.g)
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Updated•13 years ago
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Attachment #615380 -
Flags: review?(jones.chris.g) → review+
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Assignee | |
Comment 2•13 years ago
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Assignee: nobody → nfroyd
Status: NEW → ASSIGNED
Target Milestone: --- → mozilla14
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Comment 3•13 years ago
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Status: ASSIGNED → RESOLVED
Closed: 13 years ago
Resolution: --- → FIXED
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Description
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