search for: offsetoflocalarea

...g some problems defining the stack layout on ARM. It should look like Incoming vars ----------------- Saved Link Register ----------------- Local vars ----------------- The problem is that the the first local variable is being assigned to the same location as the link register. I tried to use the OffsetOfLocalArea option, but do to alignment restrictions this increased the stack size. The offset of the local vars is set in calculateFrameObjectOffsets, so I added the following hack to eliminateFrameIndex: if (Offset < 0) //local variable Offset -= 4; Is there a better way? Thanks, Rafael

...look > like > > Incoming vars > ----------------- > Saved Link Register > ----------------- > Local vars > ----------------- > > The problem is that the the first local variable is being assigned to > the same location as the link register. I tried to use the > OffsetOfLocalArea option, but do to alignment restrictions this > increased the stack size. > > The offset of the local vars is set in calculateFrameObjectOffsets, so > I added the following hack to eliminateFrameIndex: > > if (Offset < 0) //local variable > Offset -= 4; > > Is ther...

> I'm not familiar with the ARM ISA, so I don't know the right answer. The > OffsetOfLocalArea is used for ISAs (like X86) where the call sequence > modifies the stack pointer (in the case of X86, the call instruction > pushes a 4/8-byte return value). If ARM is like PPC, where the return > address is implicitly copied into a physreg, then you should probably use > OffsetOfLocal...