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ppc asm to get stack_chain using vm ptr

db4
sheeple 2009-08-30 14:55:46 -05:00 committed by Phil Dawes
parent 88d3179358
commit 0b0937cf0e
1 changed files with 9 additions and 2 deletions
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11
basis/cpu/ppc/ppc.factor
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@ -7,7 +7,7 @@ cpu.ppc.assembler cpu.ppc.assembler.backend compiler.cfg.registers
compiler.cfg.instructions compiler.cfg.comparisons
compiler.codegen.fixup compiler.cfg.intrinsics
compiler.cfg.stack-frame compiler.cfg.build-stack-frame
compiler.units compiler.constants compiler.codegen ;
compiler.units compiler.constants compiler.codegen vm ;
FROM: cpu.ppc.assembler => B ;
IN: cpu.ppc
@ -678,11 +678,18 @@ M: ppc %box-large-struct ( n c-type -- )
! Call the function
"box_value_struct" f %alien-invoke ;
: %load-vm-addr ( reg -- )
0 swap LOAD32 rc-absolute-ppc-2/2 rt-vm rel-fixup ;
: %load-vm-field-addr ( reg symbol -- )
[ drop %load-vm-addr ]
[ [ dup ] dip vm-offset ADDI ] 2bi ;
M:: ppc %save-context ( temp1 temp2 callback-allowed? -- )
#! Save Factor stack pointers in case the C code calls a
#! callback which does a GC, which must reliably trace
#! all roots.
temp1 "stack_chain" f %alien-global
temp1 "stack_chain" %load-vm-field-addr
temp1 temp1 0 LWZ
1 temp1 0 STW
callback-allowed? [