-/* Copyright (C) 1995,1996,1997,1998,1999,2000,2001, 2002, 2003, 2006, 2008 Free Software Foundation, Inc.
+/* Copyright (C) 1995,1996,1997,1998,1999,2000,2001, 2002, 2003, 2006, 2008, 2009 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
# include <config.h>
#endif
+#include "libguile/gen-scmconfig.h"
+
#include <stdio.h>
#include <errno.h>
#include <string.h>
#include <assert.h>
+#ifdef __ia64__
+#include <ucontext.h>
+extern unsigned long * __libc_ia64_register_backing_store_base;
+#endif
+
#include "libguile/_scm.h"
#include "libguile/eval.h"
#include "libguile/stime.h"
#include "libguile/gc.h"
#include "libguile/dynwind.h"
+#include "libguile/boehm-gc.h"
+
#ifdef GUILE_DEBUG_MALLOC
#include "libguile/debug-malloc.h"
#endif
void
scm_i_expensive_validation_check (SCM cell)
{
- if (!scm_in_heap_p (cell))
- {
- fprintf (stderr, "scm_assert_cell_valid: this object does not live in the heap: %lux\n",
- (unsigned long) SCM_UNPACK (cell));
- abort ();
- }
-
/* If desired, perform additional garbage collections after a user
* defined number of cell accesses.
*/
#endif /* SCM_DEBUG_CELL_ACCESSES == 1 */
\f
+/* Hooks. */
+scm_t_c_hook scm_before_gc_c_hook;
+scm_t_c_hook scm_before_mark_c_hook;
+scm_t_c_hook scm_before_sweep_c_hook;
+scm_t_c_hook scm_after_sweep_c_hook;
+scm_t_c_hook scm_after_gc_c_hook;
/* scm_mtrigger
/* GC Statistics Keeping
*/
-unsigned long scm_cells_allocated = 0;
-unsigned long scm_last_cells_allocated = 0;
unsigned long scm_mallocated = 0;
-long int scm_i_find_heap_calls = 0;
-/* Global GC sweep statistics since the last full GC. */
-scm_t_sweep_statistics scm_i_gc_sweep_stats = { 0, 0 };
-
-/* Total count of cells marked/swept. */
-static double scm_gc_cells_marked_acc = 0.;
-static double scm_gc_cells_marked_conservatively_acc = 0.;
-static double scm_gc_cells_swept_acc = 0.;
-static double scm_gc_cells_allocated_acc = 0.;
-
-static unsigned long scm_gc_time_taken = 0;
-static unsigned long scm_gc_mark_time_taken = 0;
+unsigned long scm_gc_ports_collected = 0;
-static unsigned long scm_gc_times = 0;
-static int scm_gc_cell_yield_percentage = 0;
static unsigned long protected_obj_count = 0;
-/* The following are accessed from `gc-malloc.c' and `gc-card.c'. */
-int scm_gc_malloc_yield_percentage = 0;
-unsigned long scm_gc_malloc_collected = 0;
-
SCM_SYMBOL (sym_cells_allocated, "cells-allocated");
-SCM_SYMBOL (sym_heap_size, "cell-heap-size");
+SCM_SYMBOL (sym_heap_size, "heap-size");
+SCM_SYMBOL (sym_heap_free_size, "heap-free-size");
+SCM_SYMBOL (sym_heap_total_allocated, "heap-total-allocated");
SCM_SYMBOL (sym_mallocated, "bytes-malloced");
SCM_SYMBOL (sym_mtrigger, "gc-malloc-threshold");
SCM_SYMBOL (sym_heap_segments, "cell-heap-segments");
SCM tab = scm_make_hash_table (scm_from_int (57));
SCM alist;
- scm_i_all_segments_statistics (tab);
-
alist
= scm_internal_hash_fold (&tag_table_to_type_alist, NULL, SCM_EOL, tab);
"use of storage.\n")
#define FUNC_NAME s_scm_gc_stats
{
- long i = 0;
- SCM heap_segs = SCM_EOL ;
- unsigned long int local_scm_mtrigger;
- unsigned long int local_scm_mallocated;
- unsigned long int local_scm_heap_size;
- int local_scm_gc_cell_yield_percentage;
- int local_scm_gc_malloc_yield_percentage;
- unsigned long int local_scm_cells_allocated;
- unsigned long int local_scm_gc_time_taken;
- unsigned long int local_scm_gc_times;
- unsigned long int local_scm_gc_mark_time_taken;
- unsigned long int local_protected_obj_count;
- double local_scm_gc_cells_swept;
- double local_scm_gc_cells_marked;
- double local_scm_gc_cells_marked_conservatively;
- double local_scm_total_cells_allocated;
SCM answer;
- unsigned long *bounds = 0;
- int table_size = 0;
- SCM_CRITICAL_SECTION_START;
+ size_t heap_size, free_bytes, bytes_since_gc, total_bytes;
+ size_t gc_times;
- bounds = scm_i_segment_table_info (&table_size);
+ heap_size = GC_get_heap_size ();
+ free_bytes = GC_get_free_bytes ();
+ bytes_since_gc = GC_get_bytes_since_gc ();
+ total_bytes = GC_get_total_bytes ();
+ gc_times = GC_gc_no;
- /* Below, we cons to produce the resulting list. We want a snapshot of
- * the heap situation before consing.
- */
- local_scm_mtrigger = scm_mtrigger;
- local_scm_mallocated = scm_mallocated;
- local_scm_heap_size =
- (scm_i_master_freelist.heap_total_cells + scm_i_master_freelist2.heap_total_cells);
-
- local_scm_cells_allocated =
- scm_cells_allocated + scm_i_gc_sweep_stats.collected;
-
- local_scm_gc_time_taken = scm_gc_time_taken;
- local_scm_gc_mark_time_taken = scm_gc_mark_time_taken;
- local_scm_gc_times = scm_gc_times;
- local_scm_gc_malloc_yield_percentage = scm_gc_malloc_yield_percentage;
- local_scm_gc_cell_yield_percentage = scm_gc_cell_yield_percentage;
- local_protected_obj_count = protected_obj_count;
- local_scm_gc_cells_swept =
- (double) scm_gc_cells_swept_acc
- + (double) scm_i_gc_sweep_stats.swept;
- local_scm_gc_cells_marked = scm_gc_cells_marked_acc
- + (double) scm_i_gc_sweep_stats.swept
- - (double) scm_i_gc_sweep_stats.collected;
- local_scm_gc_cells_marked_conservatively
- = scm_gc_cells_marked_conservatively_acc;
-
- local_scm_total_cells_allocated = scm_gc_cells_allocated_acc
- + (double) scm_i_gc_sweep_stats.collected;
-
- for (i = table_size; i--;)
- {
- heap_segs = scm_cons (scm_cons (scm_from_ulong (bounds[2*i]),
- scm_from_ulong (bounds[2*i+1])),
- heap_segs);
- }
-
/* njrev: can any of these scm_cons's or scm_list_n signal a memory
error? If so we need a frame here. */
answer =
- scm_list_n (scm_cons (sym_gc_time_taken,
- scm_from_ulong (local_scm_gc_time_taken)),
+ scm_list_n (scm_cons (sym_gc_time_taken, SCM_INUM0),
+#if 0
scm_cons (sym_cells_allocated,
scm_from_ulong (local_scm_cells_allocated)),
- scm_cons (sym_total_cells_allocated,
- scm_from_double (local_scm_total_cells_allocated)),
- scm_cons (sym_heap_size,
- scm_from_ulong (local_scm_heap_size)),
- scm_cons (sym_cells_marked_conservatively,
- scm_from_ulong (local_scm_gc_cells_marked_conservatively)),
scm_cons (sym_mallocated,
scm_from_ulong (local_scm_mallocated)),
scm_cons (sym_mtrigger,
scm_from_ulong (local_scm_mtrigger)),
- scm_cons (sym_times,
- scm_from_ulong (local_scm_gc_times)),
scm_cons (sym_gc_mark_time_taken,
scm_from_ulong (local_scm_gc_mark_time_taken)),
scm_cons (sym_cells_marked,
scm_from_long (local_scm_gc_malloc_yield_percentage)),
scm_cons (sym_cell_yield,
scm_from_long (local_scm_gc_cell_yield_percentage)),
- scm_cons (sym_protected_objects,
- scm_from_ulong (local_protected_obj_count)),
scm_cons (sym_heap_segments, heap_segs),
+#endif
+ scm_cons (sym_heap_size, scm_from_size_t (heap_size)),
+ scm_cons (sym_heap_free_size, scm_from_size_t (free_bytes)),
+ scm_cons (sym_heap_total_allocated,
+ scm_from_size_t (total_bytes)),
+ scm_cons (sym_protected_objects,
+ scm_from_ulong (protected_obj_count)),
+ scm_cons (sym_times, scm_from_size_t (gc_times)),
SCM_UNDEFINED);
- SCM_CRITICAL_SECTION_END;
-
- free (bounds);
+
return answer;
}
#undef FUNC_NAME
-/*
- Update nice-to-know-statistics.
- */
-static void
-gc_end_stats ()
+
+SCM_DEFINE (scm_gc_dump, "gc-dump", 0, 0, 0,
+ (void),
+ "Dump information about the garbage collector's internal data "
+ "structures and memory usage to the standard output.")
+#define FUNC_NAME s_scm_gc_dump
{
- /* CELLS SWEPT is another word for the number of cells that were examined
- during GC. YIELD is the number that we cleaned out. MARKED is the number
- that weren't cleaned. */
- scm_gc_cell_yield_percentage = (scm_i_gc_sweep_stats.collected * 100) /
- (scm_i_master_freelist.heap_total_cells + scm_i_master_freelist2.heap_total_cells);
-
- scm_gc_cells_allocated_acc +=
- (double) scm_i_gc_sweep_stats.collected;
- scm_gc_cells_marked_acc += (double) scm_i_last_marked_cell_count;
- scm_gc_cells_marked_conservatively_acc += (double) scm_i_find_heap_calls;
- scm_gc_cells_swept_acc += (double) scm_i_gc_sweep_stats.swept;
-
- ++scm_gc_times;
+ GC_dump ();
+
+ return SCM_UNSPECIFIED;
}
+#undef FUNC_NAME
+
SCM_DEFINE (scm_object_address, "object-address", 1, 0, 0,
(SCM obj),
#undef FUNC_NAME
+SCM_DEFINE (scm_gc_disable, "gc-disable", 0, 0, 0,
+ (),
+ "Disables the garbage collector. Nested calls are permitted. "
+ "GC is re-enabled once @code{gc-enable} has been called the "
+ "same number of times @code{gc-disable} was called.")
+#define FUNC_NAME s_scm_gc_disable
+{
+ GC_disable ();
+ return SCM_UNSPECIFIED;
+}
+#undef FUNC_NAME
+
+SCM_DEFINE (scm_gc_enable, "gc-enable", 0, 0, 0,
+ (),
+ "Enables the garbage collector.")
+#define FUNC_NAME s_scm_gc_enable
+{
+ GC_enable ();
+ return SCM_UNSPECIFIED;
+}
+#undef FUNC_NAME
+
+
SCM_DEFINE (scm_gc, "gc", 0, 0, 0,
(),
"Scans all of SCM objects and reclaims for further use those that are\n"
#define FUNC_NAME s_scm_gc
{
scm_i_scm_pthread_mutex_lock (&scm_i_sweep_mutex);
- scm_gc_running_p = 1;
scm_i_gc ("call");
/* njrev: It looks as though other places, e.g. scm_realloc,
can call scm_i_gc without acquiring the sweep mutex. Does this
(e.g. scm_permobjs above in scm_gc_stats) by a critical section,
not by the sweep mutex. Shouldn't all the GC-relevant objects be
protected in the same way? */
- scm_gc_running_p = 0;
scm_i_pthread_mutex_unlock (&scm_i_sweep_mutex);
scm_c_hook_run (&scm_after_gc_c_hook, 0);
return SCM_UNSPECIFIED;
}
#undef FUNC_NAME
-
-\f
-
-/* The master is global and common while the freelist will be
- * individual for each thread.
- */
-
-SCM
-scm_gc_for_newcell (scm_t_cell_type_statistics *freelist, SCM *free_cells)
-{
- SCM cell;
- int did_gc = 0;
-
- scm_i_scm_pthread_mutex_lock (&scm_i_sweep_mutex);
- scm_gc_running_p = 1;
-
- *free_cells = scm_i_sweep_for_freelist (freelist);
- if (*free_cells == SCM_EOL)
- {
- float delta = scm_i_gc_heap_size_delta (freelist);
- if (delta > 0.0)
- {
- size_t bytes = ((unsigned long) delta) * sizeof (scm_t_cell);
- freelist->heap_segment_idx =
- scm_i_get_new_heap_segment (freelist, bytes, abort_on_error);
-
- *free_cells = scm_i_sweep_for_freelist (freelist);
- }
- }
-
- if (*free_cells == SCM_EOL)
- {
- /*
- out of fresh cells. Try to get some new ones.
- */
- char reason[] = "0-cells";
- reason[0] += freelist->span;
-
- did_gc = 1;
- scm_i_gc (reason);
-
- *free_cells = scm_i_sweep_for_freelist (freelist);
- }
-
- if (*free_cells == SCM_EOL)
- {
- /*
- failed getting new cells. Get new juice or die.
- */
- float delta = scm_i_gc_heap_size_delta (freelist);
- assert (delta > 0.0);
- size_t bytes = ((unsigned long) delta) * sizeof (scm_t_cell);
- freelist->heap_segment_idx =
- scm_i_get_new_heap_segment (freelist, bytes, abort_on_error);
-
- *free_cells = scm_i_sweep_for_freelist (freelist);
- }
-
- if (*free_cells == SCM_EOL)
- abort ();
-
- cell = *free_cells;
-
- *free_cells = SCM_FREE_CELL_CDR (cell);
-
- scm_gc_running_p = 0;
- scm_i_pthread_mutex_unlock (&scm_i_sweep_mutex);
-
- if (did_gc)
- scm_c_hook_run (&scm_after_gc_c_hook, 0);
-
- return cell;
-}
-
-
-scm_t_c_hook scm_before_gc_c_hook;
-scm_t_c_hook scm_before_mark_c_hook;
-scm_t_c_hook scm_before_sweep_c_hook;
-scm_t_c_hook scm_after_sweep_c_hook;
-scm_t_c_hook scm_after_gc_c_hook;
-
-static void
-scm_check_deprecated_memory_return ()
-{
- if (scm_mallocated < scm_i_deprecated_memory_return)
- {
- /* The byte count of allocated objects has underflowed. This is
- probably because you forgot to report the sizes of objects you
- have allocated, by calling scm_done_malloc or some such. When
- the GC freed them, it subtracted their size from
- scm_mallocated, which underflowed. */
- fprintf (stderr,
- "scm_gc_sweep: Byte count of allocated objects has underflowed.\n"
- "This is probably because the GC hasn't been correctly informed\n"
- "about object sizes\n");
- abort ();
- }
- scm_mallocated -= scm_i_deprecated_memory_return;
- scm_i_deprecated_memory_return = 0;
-}
-
-long int scm_i_last_marked_cell_count;
-
-/* Must be called while holding scm_i_sweep_mutex.
-
- This function is fairly long, but it touches various global
- variables. To not obscure the side effects on global variables,
- this function has not been split up.
- */
void
scm_i_gc (const char *what)
{
- unsigned long t_before_gc = 0;
-
- scm_i_thread_put_to_sleep ();
-
- scm_c_hook_run (&scm_before_gc_c_hook, 0);
-
-#ifdef DEBUGINFO
- fprintf (stderr,"gc reason %s\n", what);
- fprintf (stderr,
- scm_is_null (*SCM_FREELIST_LOC (scm_i_freelist))
- ? "*"
- : (scm_is_null (*SCM_FREELIST_LOC (scm_i_freelist2)) ? "o" : "m"));
-#endif
-
- t_before_gc = scm_c_get_internal_run_time ();
- scm_gc_malloc_collected = 0;
-
- /*
- Set freelists to NULL so scm_cons () always triggers gc, causing
- the assertion above to fail.
- */
- *SCM_FREELIST_LOC (scm_i_freelist) = SCM_EOL;
- *SCM_FREELIST_LOC (scm_i_freelist2) = SCM_EOL;
-
- /*
- Let's finish the sweep. The conservative GC might point into the
- garbage, and marking that would create a mess.
- */
- scm_i_sweep_all_segments ("GC", &scm_i_gc_sweep_stats);
- scm_check_deprecated_memory_return ();
-
-#if (SCM_DEBUG_CELL_ACCESSES == 0 && SCM_SIZEOF_UNSIGNED_LONG == 4)
- /* Sanity check our numbers. */
- /* TODO(hanwen): figure out why the stats are off on x64_64. */
- /* If this was not true, someone touched mark bits outside of the
- mark phase. */
- if (scm_i_last_marked_cell_count != scm_i_marked_count ())
- {
- static char msg[] =
- "The number of marked objects changed since the last GC: %d vs %d.";
- /* At some point, we should probably use a deprecation warning. */
- fprintf(stderr, msg, scm_i_last_marked_cell_count, scm_i_marked_count ());
- }
- assert (scm_i_gc_sweep_stats.swept
- == (scm_i_master_freelist.heap_total_cells
- + scm_i_master_freelist2.heap_total_cells));
- assert (scm_i_gc_sweep_stats.collected + scm_i_last_marked_cell_count
- == scm_i_gc_sweep_stats.swept);
-#endif /* SCM_DEBUG_CELL_ACCESSES */
-
- /* Mark */
- scm_c_hook_run (&scm_before_mark_c_hook, 0);
-
- scm_mark_all ();
- scm_gc_mark_time_taken += (scm_c_get_internal_run_time () - t_before_gc);
-
- scm_i_last_marked_cell_count = scm_cells_allocated = scm_i_marked_count ();
-
- /* Sweep
-
- TODO: the after_sweep hook should probably be moved to just before
- the mark, since that's where the sweep is finished in lazy
- sweeping.
-
- MDJ 030219 <djurfeldt@nada.kth.se>: No, probably not. The
- original meaning implied at least two things: that it would be
- called when
-
- 1. the freelist is re-initialized (no evaluation possible, though)
-
- and
-
- 2. the heap is "fresh"
- (it is well-defined what data is used and what is not)
-
- Neither of these conditions would hold just before the mark phase.
-
- Of course, the lazy sweeping has muddled the distinction between
- scm_before_sweep_c_hook and scm_after_sweep_c_hook, but even if
- there were no difference, it would still be useful to have two
- distinct classes of hook functions since this can prevent some
- bad interference when several modules adds gc hooks.
- */
- scm_c_hook_run (&scm_before_sweep_c_hook, 0);
-
- /*
- Nothing here: lazy sweeping.
- */
- scm_i_reset_segments ();
-
- *SCM_FREELIST_LOC (scm_i_freelist) = SCM_EOL;
- *SCM_FREELIST_LOC (scm_i_freelist2) = SCM_EOL;
-
- /* Invalidate the freelists of other threads. */
- scm_i_thread_invalidate_freelists ();
-
- scm_c_hook_run (&scm_after_sweep_c_hook, 0);
-
- gc_end_stats ();
-
- scm_i_gc_sweep_stats.collected = scm_i_gc_sweep_stats.swept = 0;
- scm_i_gc_sweep_freelist_reset (&scm_i_master_freelist);
- scm_i_gc_sweep_freelist_reset (&scm_i_master_freelist2);
-
- /* Arguably, this statistic is fairly useless: marking will dominate
- the time taken.
- */
- scm_gc_time_taken += (scm_c_get_internal_run_time () - t_before_gc);
-
- scm_i_thread_wake_up ();
- /*
- For debugging purposes, you could do
- scm_i_sweep_all_segments ("debug"), but then the remains of the
- cell aren't left to analyse.
- */
+ GC_gcollect ();
}
SCM
scm_permanent_object (SCM obj)
{
- SCM cell = scm_cons (obj, SCM_EOL);
- SCM_CRITICAL_SECTION_START;
- SCM_SETCDR (cell, scm_permobjs);
- scm_permobjs = cell;
- SCM_CRITICAL_SECTION_END;
- return obj;
+ return (scm_gc_protect_object (obj));
}
void
scm_gc_register_root (SCM *p)
{
- SCM handle;
- SCM key = scm_from_ulong ((unsigned long) p);
-
- /* This critical section barrier will be replaced by a mutex. */
- /* njrev: and again. */
- SCM_CRITICAL_SECTION_START;
-
- handle = scm_hashv_create_handle_x (scm_gc_registered_roots, key,
- scm_from_int (0));
- /* njrev: note also that the above can probably signal an error */
- SCM_SETCDR (handle, scm_sum (SCM_CDR (handle), scm_from_int (1)));
-
- SCM_CRITICAL_SECTION_END;
+ /* Nothing. */
}
void
scm_gc_unregister_root (SCM *p)
{
- SCM handle;
- SCM key = scm_from_ulong ((unsigned long) p);
-
- /* This critical section barrier will be replaced by a mutex. */
- /* njrev: and again. */
- SCM_CRITICAL_SECTION_START;
-
- handle = scm_hashv_get_handle (scm_gc_registered_roots, key);
-
- if (scm_is_false (handle))
- {
- fprintf (stderr, "scm_gc_unregister_root called on unregistered root\n");
- abort ();
- }
- else
- {
- SCM count = scm_difference (SCM_CDR (handle), scm_from_int (1));
- if (scm_is_eq (count, scm_from_int (0)))
- scm_hashv_remove_x (scm_gc_registered_roots, key);
- else
- SCM_SETCDR (handle, count);
- }
-
- SCM_CRITICAL_SECTION_END;
+ /* Nothing. */
}
void
void
scm_storage_prehistory ()
{
+ GC_all_interior_pointers = 0;
+ GC_set_free_space_divisor (scm_getenv_int ("GC_FREE_SPACE_DIVISOR", 3));
+
+ GC_INIT ();
+
+#if (! ((defined GC_VERSION_MAJOR) && (GC_VERSION_MAJOR >= 7))) \
+ && (defined SCM_I_GSC_USE_PTHREAD_THREADS)
+ /* When using GC 6.8, this call is required to initialize thread-local
+ freelists (shouldn't be necessary with GC 7.0). */
+ GC_init ();
+#endif
+
+ GC_expand_hp (SCM_DEFAULT_INIT_HEAP_SIZE_2);
+
+ /* We only need to register a displacement for those types for which the
+ higher bits of the type tag are used to store a pointer (that is, a
+ pointer to an 8-octet aligned region). For `scm_tc3_struct', this is
+ handled in `scm_alloc_struct ()'. */
+ GC_REGISTER_DISPLACEMENT (scm_tc3_cons);
+ GC_REGISTER_DISPLACEMENT (scm_tc3_closure);
+
+ /* Sanity check. */
+ if (!GC_is_visible (scm_sys_protects))
+ abort ();
+
scm_c_hook_init (&scm_before_gc_c_hook, 0, SCM_C_HOOK_NORMAL);
scm_c_hook_init (&scm_before_mark_c_hook, 0, SCM_C_HOOK_NORMAL);
scm_c_hook_init (&scm_before_sweep_c_hook, 0, SCM_C_HOOK_NORMAL);
while (j)
scm_sys_protects[--j] = SCM_BOOL_F;
- scm_gc_init_freelist ();
- scm_gc_init_malloc ();
+ j = SCM_HEAP_SEG_SIZE;
#if 0
/* We can't have a cleanup handler since we have no thread to run it
#endif
scm_stand_in_procs = scm_make_weak_key_hash_table (scm_from_int (257));
- scm_permobjs = SCM_EOL;
scm_protects = scm_c_make_hash_table (31);
- scm_gc_registered_roots = scm_c_make_hash_table (31);
return 0;
}
return NULL;
}
+char const *
+scm_i_tag_name (scm_t_bits tag)
+{
+ if (tag >= 255)
+ {
+ if (tag == scm_tc_free_cell)
+ return "free cell";
+
+ {
+ int k = 0xff & (tag >> 8);
+ return (scm_smobs[k].name);
+ }
+ }
+
+ switch (tag) /* 7 bits */
+ {
+ case scm_tcs_struct:
+ return "struct";
+ case scm_tcs_cons_imcar:
+ return "cons (immediate car)";
+ case scm_tcs_cons_nimcar:
+ return "cons (non-immediate car)";
+ case scm_tcs_closures:
+ return "closures";
+ case scm_tc7_pws:
+ return "pws";
+ case scm_tc7_wvect:
+ return "weak vector";
+ case scm_tc7_vector:
+ return "vector";
+#ifdef CCLO
+ case scm_tc7_cclo:
+ return "compiled closure";
+#endif
+ case scm_tc7_number:
+ switch (tag)
+ {
+ case scm_tc16_real:
+ return "real";
+ break;
+ case scm_tc16_big:
+ return "bignum";
+ break;
+ case scm_tc16_complex:
+ return "complex number";
+ break;
+ case scm_tc16_fraction:
+ return "fraction";
+ break;
+ }
+ break;
+ case scm_tc7_string:
+ return "string";
+ break;
+ case scm_tc7_stringbuf:
+ return "string buffer";
+ break;
+ case scm_tc7_symbol:
+ return "symbol";
+ break;
+ case scm_tc7_variable:
+ return "variable";
+ break;
+ case scm_tcs_subrs:
+ return "subrs";
+ break;
+ case scm_tc7_port:
+ return "port";
+ break;
+ case scm_tc7_smob:
+ return "smob"; /* should not occur. */
+ break;
+ }
+
+ return NULL;
+}
+
+
+
+\f
void
scm_init_gc ()
{
- scm_gc_init_mark ();
+ /* `GC_INIT ()' was invoked in `scm_storage_prehistory ()'. */
scm_after_gc_hook = scm_permanent_object (scm_make_hook (SCM_INUM0));
scm_c_define ("after-gc-hook", scm_after_gc_hook);
#include "libguile/gc.x"
}
-#ifdef __ia64__
-# ifdef __hpux
-# include <sys/param.h>
-# include <sys/pstat.h>
-void *
-scm_ia64_register_backing_store_base (void)
-{
- struct pst_vm_status vm_status;
- int i = 0;
- while (pstat_getprocvm (&vm_status, sizeof (vm_status), 0, i++) == 1)
- if (vm_status.pst_type == PS_RSESTACK)
- return (void *) vm_status.pst_vaddr;
- abort ();
-}
-void *
-scm_ia64_ar_bsp (const void *ctx)
-{
- uint64_t bsp;
- __uc_get_ar_bsp (ctx, &bsp);
- return (void *) bsp;
-}
-# endif /* hpux */
-# ifdef linux
-# include <ucontext.h>
-void *
-scm_ia64_register_backing_store_base (void)
-{
- extern void *__libc_ia64_register_backing_store_base;
- return __libc_ia64_register_backing_store_base;
-}
-void *
-scm_ia64_ar_bsp (const void *opaque)
-{
- const ucontext_t *ctx = opaque;
- return (void *) ctx->uc_mcontext.sc_ar_bsp;
-}
-# endif /* linux */
-#endif /* __ia64__ */
void
scm_gc_sweep (void)
#define FUNC_NAME "scm_gc_sweep"
{
+ /* FIXME */
+ fprintf (stderr, "%s: doing nothing\n", __FUNCTION__);
}
#undef FUNC_NAME
HCoop / bpt / guile.git / blobdiff