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binutils-gdb
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* dwarf2loc.c (struct piece_closure) <refc>: New field. 

(allocate_piece_closure): Initialize refc.
	(copy_pieced_value_closure): Use refc.
	(free_pieced_value_closure): Likewise.
This commit is contained in:
Tom Tromey 2010-05-27 19:14:35 +00:00
parent 8c6363cf5c
commit 88bfdde411
2 changed files with 19 additions and 3 deletions
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7
gdb/ChangeLog
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@ -1,3 +1,10 @@
2010-05-27 Tom Tromey <tromey@redhat.com>
* dwarf2loc.c (struct piece_closure) <refc>: New field.
(allocate_piece_closure): Initialize refc.
(copy_pieced_value_closure): Use refc.
(free_pieced_value_closure): Likewise.
2010-05-27 Tom Tromey <tromey@redhat.com>
* arm-tdep.c (push_stack_item): 'contents' now const.

15
gdb/dwarf2loc.c
View File

@ -231,6 +231,9 @@ dwarf_expr_tls_address (void *baton, CORE_ADDR offset)
struct piece_closure
{
/* Reference count. */
int refc;
/* The number of pieces used to describe this variable. */
int n_pieces;
@ -250,6 +253,7 @@ allocate_piece_closure (int n_pieces, struct dwarf_expr_piece *pieces,
{
struct piece_closure *c = XZALLOC (struct piece_closure);
c->refc = 1;
c->n_pieces = n_pieces;
c->addr_size = addr_size;
c->pieces = XCALLOC (n_pieces, struct dwarf_expr_piece);
@ -747,7 +751,8 @@ copy_pieced_value_closure (struct value *v)
{
struct piece_closure *c = (struct piece_closure *) value_computed_closure (v);
return allocate_piece_closure (c->n_pieces, c->pieces, c->addr_size);
++c->refc;
return c;
}
static void
@ -755,8 +760,12 @@ free_pieced_value_closure (struct value *v)
{
struct piece_closure *c = (struct piece_closure *) value_computed_closure (v);
xfree (c->pieces);
xfree (c);
--c->refc;
if (c->refc == 0)
{
xfree (c->pieces);
xfree (c);
}
}
/* Functions for accessing a variable described by DW_OP_piece. */