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guile/libguile/control.h
Andy Wingo f84ce5442e Refactor handling of auxiliary stacks and setjmp/longjmp
* libguile/__scm.h (scm_i_jmp_buf): Remove definition, which was a shim
  for ia64.  Instead, always use setjmp/longjmp and jmp_buf.
* libguile/_scm.h (SCM_I_SETJMP, SCM_I_LONGJMP): Remove; instead use
  setjmp and longjmp.
* libguile/continuations.c (capture_auxiliary_stack):
  (restore_auxiliary_stack): New helpers.
  (scm_i_make_continuation): Use capture_auxiliary_stack.
  (copy_stack_and_call): Use restore_auxiliary_stack.  No need to stash
  the aux stack on the thread, either.
* libguile/continuations.h (scm_t_contregs): Use
  SCM_HAVE_AUXILIARY_STACK to flag when to have an auxiliary_stack
  member.
* libguile/control.h:
* libguile/control.c (reify_partial_continuation, scm_c_abort):
  (scm_suspendable_continuation_p): Adapt to use setjmp/longjmp
  directly.
* libguile/deprecated.h: Add deprecated scm_i_jmp_buf define.
* libguile/dynstack.h:
* libguile/dynstack.c (PROMPT_JMPBUF):
  (scm_dynstack_push_prompt, scm_dynstack_find_prompt):
  (scm_dynstack_wind_prompt): Adapt to jmp_buf type.
* libguile/eval.c (eval): Use jmp_buf and setjmp directly.
* libguile/gc-malloc.c: No need for ia64-specific things.
* libguile/gc.c: No need for ia64-specific things.
* libguile/gc.h: No need to declare scm_ia64_ar_bsp.
* libguile/init.c: Remove typedef of setjmp_type for Cray, unused.
* libguile/threads.c (guilify_self_1): No more pending_rbs_continuation
  in scm_i_thread, and register_backing_store_base is handled by libgc.
  (scm_ia64_ar_bsp): Remove definitions; inlined into continuations.c's
  capture_auxiliary_stack.
* libguile/threads.h (scm_i_thread): jmpbuf member is plain jmp_buf.
* libguile/throw.c (catch): Just use jmp_buf and setjmp.
* libguile/vm-engine.c (VM_NAME): Adapt prototype to take jmp_buf
  pointer.
* libguile/vm.c (vm_abort): Adapt jmp_buf types.
  (scm_call_n): Use setjmp.
2018-06-17 13:41:03 +02:00

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1.3 KiB
C

/* Copyright (C) 2010-2013, 2018 Free Software Foundation, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation; either version 3 of
* the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301 USA
*/
#ifndef SCM_CONTROL_H
#define SCM_CONTROL_H
#include <setjmp.h>
#include "libguile/vm.h"
SCM_INTERNAL SCM scm_i_prompt_pop_abort_args_x (struct scm_vm *vp,
scm_t_ptrdiff saved_stack_depth);
SCM_INTERNAL void scm_c_abort (struct scm_vm *vp, SCM tag, size_t n, SCM *argv,
jmp_buf *registers) SCM_NORETURN;
SCM_INTERNAL SCM scm_abort_to_prompt_star (SCM tag, SCM args) SCM_NORETURN;
SCM_INTERNAL void scm_init_control (void);
#endif /* SCM_CONTROL_H */