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* c/4259: dwarf2out.c ignores the garbage collector
@ 2001-09-07 10:26 tim
0 siblings, 0 replies; 4+ messages in thread
From: tim @ 2001-09-07 10:26 UTC (permalink / raw)
To: gcc-gnats
>Number: 4259
>Category: c
>Synopsis: dwarf2out.c ignores the garbage collector
>Confidential: no
>Severity: critical
>Priority: high
>Responsible: unassigned
>State: open
>Class: sw-bug
>Submitter-Id: net
>Arrival-Date: Fri Sep 07 10:26:01 PDT 2001
>Closed-Date:
>Last-Modified:
>Originator: tim@fungible.com
>Release: gcc 3.0.1; current CVS
>Organization:
>Environment:
Any time you generate dwarf2 format debug records.
>Description:
dwarf2out does not pay due attention to the garbage
collector. Specifically, decl_scope_table and
incomplete_types need to become varray's and to
be registered as roots. Here's a patch against
gcc 3.0.1 that also seems to work against this morning's
CVS tree. This fixes bugs 4212 and 4215.
>How-To-Repeat:
Same instructions as bug 4215.
>Fix:
*** dwarf2out.c.orig Fri Sep 7 06:32:29 2001
--- dwarf2out.c Fri Sep 7 09:52:26 2001
***************
*** 3210,3226 ****
of declaration scopes at the current scope and containing
scopes. This table is used to find the proper place to
define type declaration DIE's. */
! static tree *decl_scope_table;
!
! /* Number of elements currently allocated for the decl_scope_table. */
! static int decl_scope_table_allocated;
!
! /* Current level of nesting of declaration scopes. */
! static int decl_scope_depth;
!
! /* Size (in elements) of increments by which we may expand the
! decl_scope_table. */
! #define DECL_SCOPE_TABLE_INCREMENT 64
/* A pointer to the base of a list of references to DIE's that
are uniquely identified by their tag, presence/absence of
--- 3210,3216 ----
of declaration scopes at the current scope and containing
scopes. This table is used to find the proper place to
define type declaration DIE's. */
! varray_type decl_scope_table;
/* A pointer to the base of a list of references to DIE's that
are uniquely identified by their tag, presence/absence of
***************
*** 3290,3309 ****
#define ARANGE_TABLE_INCREMENT 64
/* A pointer to the base of a list of incomplete types which might be
! completed at some later time. */
!
! static tree *incomplete_types_list;
!
! /* Number of elements currently allocated for the incomplete_types_list. */
! static unsigned incomplete_types_allocated;
!
! /* Number of elements of incomplete_types_list currently in use. */
! static unsigned incomplete_types;
!
! /* Size (in elements) of increments by which we may expand the incomplete
! types list. Actually, a single hunk of space of this size should
! be enough for most typical programs. */
! #define INCOMPLETE_TYPES_INCREMENT 64
/* Record whether the function being analyzed contains inlined functions. */
static int current_function_has_inlines;
--- 3280,3290 ----
#define ARANGE_TABLE_INCREMENT 64
/* A pointer to the base of a list of incomplete types which might be
! completed at some later time. incomplete_types_list needs to be a VARRAY
! because we want to tell the garbage collector about it. If we don't tell
! the garbage collector about it, we can garbage collect live data.
! Bug 4215.*/
! varray_type incomplete_types;
/* Record whether the function being analyzed contains inlined functions. */
static int current_function_has_inlines;
***************
*** 8789,8814 ****
push_decl_scope (scope)
tree scope;
{
! /* Make room in the decl_scope_table, if necessary. */
! if (decl_scope_table_allocated == decl_scope_depth)
! {
! decl_scope_table_allocated += DECL_SCOPE_TABLE_INCREMENT;
! decl_scope_table
! = (tree *) xrealloc (decl_scope_table,
! decl_scope_table_allocated * sizeof (tree));
! }
!
! decl_scope_table[decl_scope_depth] = scope;
! decl_scope_depth++;
}
/* Pop a declaration scope. */
static inline void
pop_decl_scope ()
{
! if (decl_scope_depth <= 0)
abort ();
! --decl_scope_depth;
}
/* Return the DIE for the scope that immediately contains this type.
--- 8770,8785 ----
push_decl_scope (scope)
tree scope;
{
! VARRAY_PUSH_TREE (decl_scope_table, scope);
}
/* Pop a declaration scope. */
static inline void
pop_decl_scope ()
{
! if (VARRAY_ACTIVE_SIZE (decl_scope_table) <= 0)
abort ();
! VARRAY_POP (decl_scope_table);
}
/* Return the DIE for the scope that immediately contains this type.
***************
*** 8850,8857 ****
first we check to see if we're in the middle of emitting it
so we know where the new DIE should go. */
! for (i = decl_scope_depth - 1; i >= 0; --i)
! if (decl_scope_table[i] == containing_scope)
break;
if (i < 0)
--- 8821,8828 ----
first we check to see if we're in the middle of emitting it
so we know where the new DIE should go. */
! for (i = VARRAY_ACTIVE_SIZE (decl_scope_table) - 1; i >= 0; --i)
! if (VARRAY_TREE (decl_scope_table, i) == containing_scope)
break;
if (i < 0)
***************
*** 9105,9124 ****
#endif
/* Remember a type in the incomplete_types_list. */
-
static void
add_incomplete_type (type)
tree type;
{
! if (incomplete_types == incomplete_types_allocated)
! {
! incomplete_types_allocated += INCOMPLETE_TYPES_INCREMENT;
! incomplete_types_list
! = (tree *) xrealloc (incomplete_types_list,
! sizeof (tree) * incomplete_types_allocated);
! }
!
! incomplete_types_list[incomplete_types++] = type;
}
/* Walk through the list of incomplete types again, trying once more to
--- 9076,9086 ----
#endif
/* Remember a type in the incomplete_types_list. */
static void
add_incomplete_type (type)
tree type;
{
! VARRAY_PUSH_TREE (incomplete_types, type);
}
/* Walk through the list of incomplete types again, trying once more to
***************
*** 9127,9139 ****
static void
retry_incomplete_types ()
{
! register tree type;
!
! while (incomplete_types)
{
! --incomplete_types;
! type = incomplete_types_list[incomplete_types];
! gen_type_die (type, comp_unit_die);
}
}
--- 9089,9098 ----
static void
retry_incomplete_types ()
{
! int i;
! for (i = VARRAY_ACTIVE_SIZE (incomplete_types) - 1; i >= 0; i--)
{
! gen_type_die (VARRAY_TREE (incomplete_types, i), comp_unit_die);
}
}
***************
*** 11195,11204 ****
decl_die_table_in_use = 0;
/* Allocate the initial hunk of the decl_scope_table. */
! decl_scope_table
! = (tree *) xcalloc (DECL_SCOPE_TABLE_INCREMENT, sizeof (tree));
! decl_scope_table_allocated = DECL_SCOPE_TABLE_INCREMENT;
! decl_scope_depth = 0;
/* Allocate the initial hunk of the abbrev_die_table. */
abbrev_die_table
--- 11154,11161 ----
decl_die_table_in_use = 0;
/* Allocate the initial hunk of the decl_scope_table. */
! VARRAY_TREE_INIT (decl_scope_table, 256, "decl_scope_table");
! ggc_add_tree_varray_root (&decl_scope_table, 1);
/* Allocate the initial hunk of the abbrev_die_table. */
abbrev_die_table
***************
*** 11222,11227 ****
--- 11179,11187 ----
taken as being relative to the directory from which the compiler was
invoked when the given (base) source file was compiled. */
comp_unit_die = gen_compile_unit_die (main_input_filename);
+
+ VARRAY_TREE_INIT (incomplete_types, 64, "incomplete_types");
+ ggc_add_tree_varray_root (&incomplete_types, 1);
VARRAY_RTX_INIT (used_rtx_varray, 32, "used_rtx_varray");
ggc_add_rtx_varray_root (&used_rtx_varray, 1);
>Release-Note:
>Audit-Trail:
>Unformatted:
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: c/4259: dwarf2out.c ignores the garbage collector
@ 2001-12-02 17:56 rodrigc
0 siblings, 0 replies; 4+ messages in thread
From: rodrigc @ 2001-12-02 17:56 UTC (permalink / raw)
To: nobody; +Cc: gcc-prs
The following reply was made to PR c/4259; it has been noted by GNATS.
From: rodrigc@gcc.gnu.org
To: gcc-bugs@gcc.gnu.org, gcc-gnats@gcc.gnu.org, gcc-prs@gcc.gnu.org,
nobody@gcc.gnu.org, rodrigc@gcc.gnu.org, tim@fungible.com
Cc:
Subject: Re: c/4259: dwarf2out.c ignores the garbage collector
Date: 3 Dec 2001 01:54:41 -0000
Synopsis: dwarf2out.c ignores the garbage collector
State-Changed-From-To: feedback->closed
State-Changed-By: rodrigc
State-Changed-When: Sun Dec 2 17:54:41 2001
State-Changed-Why:
Patch applied.
http://gcc.gnu.org/ml/gcc-cvs/2001-09/msg00165.html
http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&pr=4259&database=gcc
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: c/4259: dwarf2out.c ignores the garbage collector
@ 2001-12-02 17:54 rodrigc
0 siblings, 0 replies; 4+ messages in thread
From: rodrigc @ 2001-12-02 17:54 UTC (permalink / raw)
To: gcc-bugs, gcc-gnats, gcc-prs, nobody, rodrigc, tim
Synopsis: dwarf2out.c ignores the garbage collector
State-Changed-From-To: feedback->closed
State-Changed-By: rodrigc
State-Changed-When: Sun Dec 2 17:54:41 2001
State-Changed-Why:
Patch applied.
http://gcc.gnu.org/ml/gcc-cvs/2001-09/msg00165.html
http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&pr=4259&database=gcc
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: c/4259: dwarf2out.c ignores the garbage collector
@ 2001-09-08 11:16 rodrigc
0 siblings, 0 replies; 4+ messages in thread
From: rodrigc @ 2001-09-08 11:16 UTC (permalink / raw)
To: gcc-bugs, gcc-prs, nobody, rodrigc, tim
Synopsis: dwarf2out.c ignores the garbage collector
State-Changed-From-To: open->feedback
State-Changed-By: rodrigc
State-Changed-When: Sat Sep 8 11:16:28 2001
State-Changed-Why:
Can you:
(1) reformat your patch according to the guidelines at: http://gcc.gnu.org/contribute.html
(2) submit a ChangeLog entry in a format similar to:
http://www.gnu.org/software/changelogs/gcc/gcc-3.0/gcc/ChangeLog
(3) E-mail your patch to gcc-patches@gcc.gnu.org, where it
will enter the queue for patches applied to gcc.
I'll keep a reference to your patch on this bug report.
Thanks.
http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view&pr=4259&database=gcc
^ permalink raw reply [flat|nested] 4+ messages in thread
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