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ppc: Fix 64-bit SAVE_CR

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The ABI mandates using CR save space in the caller's frame - we cannot use
the slot in our own frame, since some function we call could overwrite it.
This commit is contained in:
Marcin Kościelnicki 2016-03-08 03:46:22 +01:00
parent 47ed69b8a0
commit 89f7457952
1 changed files with 2 additions and 1 deletions
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3
src/vm_ppc.dasc
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@ -191,6 +191,7 @@
|.define SAVE_MULTRES, 456(sp) // |
|.define SAVE_CFRAME, 448(sp) // / 64 bit C frame chain.
|.define SAVE_LR, 416(sp)
|.define SAVE_CR, 408(sp) // 64 bit CR save.
|.define CFRAME_SPACE, 400 // Delta for sp.
|// Back chain for sp: 400(sp) <-- sp entering interpreter
|.define SAVE_FPR_, 256 // .. 256+18*8: 64 bit FPR saves.
@ -202,7 +203,7 @@
|.define TONUM_LO, 28(sp) // \ Compiler temp (ABI mandated).
|.define TONUM_HI, 24(sp) // /
|// Next frame lr: 16(sp)
|.define SAVE_CR, 8(sp) // 64 bit CR save.
|// Next frame cr: 8(sp)
|// Back chain for sp: 0(sp) <-- sp while in interpreter
|
|.define TMPD_BLO, 39(sp)