/* Function is an indirect closure */
lwz reg_CODE,SIMPLE_FUN_SELF_OFFSET(reg_LEXENV)
- addi reg_LIP,reg_CODE,6*4-FUN_POINTER_LOWTAG
+ addi reg_LIP,reg_CODE,SIMPLE_FUN_CODE_OFFSET
mtctr reg_LIP
slwi reg_NARGS,reg_NL2,2
bctr
GFUNCDEF(xundefined_tramp)
.globl CSYMBOL(undefined_tramp)
-CSYMBOL(undefined_tramp):
+ .long SIMPLE_FUN_HEADER_WIDETAG /* header */
+ .long CSYMBOL(undefined_tramp) - SIMPLE_FUN_CODE_OFFSET /* self */
+ .long NIL /* next */
+ .long NIL /* name */
+ .long NIL /* arglist */
+ .long NIL /* type */
+ .long NIL /* xref */
+CSYMBOL(undefined_tramp):
+ /* Point reg_CODE to the header and tag it as function, since
+ the debugger regards a function pointer in reg_CODE which
+ doesn't point to a code object as undefined function. */
+ bcl 20,31,.+4 /* get address of the next instruction */
+ mflr reg_CODE /* header 1 extra word back from here */
+ addi reg_CODE,reg_CODE,-(SIMPLE_FUN_CODE_OFFSET+4)
+
twllei reg_ZERO,trap_Cerror
.byte 4
.byte UNDEFINED_FUN_ERROR
- .byte 254, sc_DescriptorReg+0x40, 1 /* 140? sparc says sc_descriptorReg */
+ .byte 254, sc_DescriptorReg+0x40, 1 /* 140? sparc says sc_descriptorReg */
/* This stuff is for the continuable error. I don't think there's
* any support for it on the lisp side */
.align 2
.long NIL
.long NIL
.long NIL
+ .long NIL
lwz reg_LEXENV,FUNCALLABLE_INSTANCE_FUNCTION_OFFSET(reg_LEXENV)
lwz reg_FDEFN,CLOSURE_FUN_OFFSET(reg_LEXENV)
addi reg_LIP,reg_FDEFN,SIMPLE_FUN_CODE_OFFSET