mirror/guile
mirror/guile
1
Fork 0
mirror of https://git.savannah.gnu.org/git/guile.git synced 2025-06-18 01:30:27 +02:00
Code Activity

VM continuations store FP/SP by offset

Browse source 
* libguile/continuations.c (scm_i_continuation_to_frame):
* libguile/stacks.c (scm_make_stack):
* libguile/vm.c (scm_i_vm_cont_to_frame, scm_i_vm_capture_stack):
  (vm_return_to_continuation_inner)
  (struct vm_reinstate_partial_continuation_data):
  (vm_reinstate_partial_continuation_inner):
  (vm_reinstate_partial_continuation):
* libguile/vm.h (sstruct scm_vm_cont): Simplify VM continuations by
  recording the top FP by offset, not value + reloc.
* libguile/frames.c (frame_offset, scm_i_vm_frame_offset): Remove unused
  functions.
* libguile/frames.h (SCM_VALIDATE_VM_FRAME, scm_i_vm_frame_offset):
  Remove.
* libguile/control.c (reify_partial_continuation): Once we know the
  base_fp, relocate the dynamic stack.
* libguile/dynstack.h:
* libguile/dynstack.c (scm_dynstack_relocate_prompts): New function.
  (scm_dynstack_wind_prompt): Adapt to add new fp offset.
This commit is contained in:
Andy Wingo 2017-02-12 18:22:44 +01:00
parent 5048a8afbc
commit 00ed4043c2
9 changed files with 49 additions and 64 deletions
Download patch file Download diff file Expand all files Collapse all files

3
libguile/continuations.c
View file

@ -184,10 +184,9 @@ scm_i_continuation_to_frame (SCM continuation, struct scm_frame *frame)
struct scm_vm_cont *data = SCM_VM_CONT_DATA (cont->vm_cont);
union scm_vm_stack_element *stack_top;
/* FIXME vm_cont should hold fp/sp offsets */
stack_top = data->stack_bottom + data->stack_size;
frame->stack_holder = data;
frame->fp_offset = stack_top - (data->fp + data->reloc);
frame->fp_offset = data->fp_offset;
frame->sp_offset = data->stack_size;
frame->ip = data->ra;