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core: Prepare for M2-Planet: M2_CELL_SIZE. 

* src/gc.c (M2_CELL_SIZE): Hack for missing pointer arithmetic in
M2-Planet.
(gc_init, alloc, make_cell, gc_up_arena, gc_copy, gc_loop, gc_): Use it.
This commit is contained in:
Jan Nieuwenhuizen 2019-10-24 21:56:49 +02:00
parent a758a5a6a6
commit 395209e5c3
No known key found for this signature in database
GPG Key ID: F3C1A0D9C1D65273
2 changed files with 15 additions and 15 deletions
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28
src/gc.c
View File

@ -109,9 +109,9 @@ gc_init ()
long arena_bytes = (ARENA_SIZE + JAM_SIZE) * sizeof (struct scm);
#if POINTER_CELLS
void *a = malloc (arena_bytes + STACK_SIZE * sizeof (SCM) * 2);
void *a = malloc (arena_bytes + (STACK_SIZE * sizeof (SCM) * 2));
#else
void *a = malloc (arena_bytes + STACK_SIZE * sizeof (SCM));
void *a = malloc (arena_bytes + (STACK_SIZE * sizeof (SCM)));
#endif
g_cells = a;
g_stack_array = a + arena_bytes;
@ -126,7 +126,7 @@ gc_init ()
TYPE (cell_arena) = TVECTOR;
LENGTH (cell_arena) = 1000;
VECTOR (cell_arena) = 0;
g_cells = g_cells + 1;
g_cells = g_cells + M2_CELL_SIZE;
TYPE (cell_arena) = TCHAR;
VALUE (cell_arena) = 'c';
@ -168,7 +168,7 @@ SCM
alloc (long n)
{
SCM x = g_free;
g_free = g_free + n;
g_free = g_free + (n * M2_CELL_SIZE);
#if POINTER_CELLS
long i = g_free - g_cells;
#else
@ -183,7 +183,7 @@ SCM
make_cell (long type, SCM car, SCM cdr)
{
SCM x = g_free;
g_free = g_free + 1;
g_free = g_free + M2_CELL_SIZE;
#if POINTER_CELLS
long i = g_free - g_cells;
#else
@ -222,7 +222,7 @@ copy_stack (long index, SCM from)
SCM
cell_ref (SCM cell, long index)
{
return cell + index;
return cell + (index * M2_CELL_SIZE);
}
SCM
@ -335,7 +335,7 @@ gc_up_arena ()
else
ARENA_SIZE = MAX_ARENA_SIZE - JAM_SIZE;
long arena_bytes = (ARENA_SIZE + JAM_SIZE) * sizeof (struct scm);
void *p = realloc (g_cells - 1, arena_bytes + STACK_SIZE * sizeof (SCM));
void *p = realloc (g_cells - M2_CELL_SIZE, (arena_bytes + STACK_SIZE) * sizeof (SCM));
if (p == 0)
{
eputs ("realloc failed, g_free=");
@ -353,7 +353,7 @@ gc_up_arena ()
}
g_cells = p;
memcpy (p + arena_bytes, p + old_arena_bytes, STACK_SIZE * sizeof (SCM));
g_cells = g_cells + 1;
g_cells = g_cells + M2_CELL_SIZE;
}
void
@ -381,7 +381,7 @@ gc_copy (SCM old) /*:((internal)) */
if (TYPE (old) == TBROKEN_HEART)
return CAR (old);
SCM new = g_free;
g_free = g_free + 1;
g_free = g_free + M2_CELL_SIZE;
copy_news (new, old);
if (NTYPE (new) == TSTRUCT || NTYPE (new) == TVECTOR)
{
@ -390,16 +390,16 @@ gc_copy (SCM old) /*:((internal)) */
for (i = 0; i < LENGTH (old); i = i + 1)
{
copy_news (g_free, cell_ref (VECTOR (old), i));
g_free = g_free + 1;
g_free = g_free + M2_CELL_SIZE;
}
}
else if (NTYPE (new) == TBYTES)
{
char const *src = cell_bytes (old);
char *dest = news_bytes (new);
size_t length = NLENGTH (old);
size_t length = NLENGTH (new);
memcpy (dest, src, length);
g_free = g_free + bytes_cells (length) - 1;
g_free = g_free + ((bytes_cells (length) - 1) * M2_CELL_SIZE);
if (g_debug > 4)
{
@ -535,14 +535,14 @@ gc_ ()
}
SCM s;
for (s = cell_nil; s < g_symbol_max; s = s + 1)
for (s = cell_nil; s < g_symbol_max; s = s + M2_CELL_SIZE)
gc_copy (s);
g_symbols = gc_copy (g_symbols);
g_macros = gc_copy (g_macros);
g_ports = gc_copy (g_ports);
M0 = gc_copy (M0);
long i;
for (i = g_stack; i < STACK_SIZE; i = i + 1)
for (i = g_stack; i < STACK_SIZE; i = i + M2_CELL_SIZE)
copy_stack (i, gc_copy (g_stack_array[i]));
#if POINTER_CELLS
long save_gfree = g_free;

2
src/hash.c
View File

@ -29,7 +29,7 @@ hash_cstring (char const *s, long size)
int hash = s[0] * 37;
if (s[0] != 0)
if (s[1] != 0)
hash = hash + s[1] * 43;
hash = hash + (s[1] * 43);
assert_msg (size != 0, "size");
hash = hash % size;
return hash;