mirror of
https://git.savannah.gnu.org/git/guile.git
synced 2025-04-30 20:00:19 +02:00
02c624fc09
* module/language/cps/slot-allocation.scm (lookup-dead-slot-map) (allocate-slots): For each non-tail call in a function, compute the set of slots that are dead after the function has begun the call. * module/language/cps/compile-bytecode.scm (compile-fun): Emit the `dead-slot-map' macro instruction for non-tail calls. * module/system/vm/assembler.scm (<asm>): Add `dead-slot-maps' member. (dead-slot-map): New macro-instruction. (link-frame-maps, link-dynamic-section, link-objects): Write dead slots information into .guile.frame-maps sections of ELF files. * module/system/vm/elf.scm (DT_GUILE_FRAME_MAPS): New definition. * libguile/loader.h: * libguile/loader.c (DT_GUILE_FRAME_MAPS, process_dynamic_segment): (load_thunk_from_memory, register_elf): Arrange to parse DT_GUILE_FRAME_MAPS out of the dynamic section. (find_mapped_elf_image_unlocked, find_mapped_elf_image): New helpers. (scm_find_mapped_elf_image): Refactor. (scm_find_dead_slot_map_unlocked): New interface. * libguile/vm.c (scm_i_vm_mark_stack): Mark the hottest frame conservatively, as before. Otherwise use the dead slots map, if available, to avoid marking data that isn't live.
39 lines
1.2 KiB
C
39 lines
1.2 KiB
C
/* Copyright (C) 2001, 2009, 2010, 2011, 2012, 2013, 2014 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_LOADER_H_
|
|
#define _SCM_LOADER_H_
|
|
|
|
#include <libguile.h>
|
|
|
|
SCM_API SCM scm_load_thunk_from_file (SCM filename);
|
|
SCM_API SCM scm_load_thunk_from_memory (SCM bv);
|
|
|
|
SCM_INTERNAL const scm_t_uint8 *
|
|
scm_find_dead_slot_map_unlocked (const scm_t_uint32 *ip);
|
|
|
|
SCM_INTERNAL void scm_bootstrap_loader (void);
|
|
SCM_INTERNAL void scm_init_loader (void);
|
|
|
|
#endif /* _SCM_LOADER_H_ */
|
|
|
|
/*
|
|
Local Variables:
|
|
c-file-style: "gnu"
|
|
End:
|
|
*/
|