* Fix incomplete initialization of declspecs
[not found] <56BB9471.8070901@t-online.de>
@ 2016-02-10 20:01 ` Bernd Schmidt
2016-02-10 21:00 ` Joseph Myers
0 siblings, 1 reply; 2+ messages in thread
From: Bernd Schmidt @ 2016-02-10 20:01 UTC (permalink / raw)
To: GCC Patches; +Cc: Joseph Myers
[-- Attachment #1: Type: text/plain, Size: 353 bytes --]
I've noticed that build_null_declspecs fails to clear out all location
information since it's missing a multiplication with the type size. The
simplest fix seems to be to just clear the entire structure.
Bootstrapping & testing now on x86_64-linux, ok if that succeeds?
Depending on what we do for 69733, this might be a prerequisite patch.
Bernd
[-- Attachment #2: c-zero.diff --]
[-- Type: text/x-patch, Size: 1388 bytes --]
* c-decl.c (build_null_declspecs): Zero the entire struct.
Index: gcc/c/c-decl.c
===================================================================
--- gcc/c/c-decl.c (revision 233217)
+++ gcc/c/c-decl.c (working copy)
@@ -9460,38 +9486,12 @@ struct c_declspecs *
build_null_declspecs (void)
{
struct c_declspecs *ret = XOBNEW (&parser_obstack, struct c_declspecs);
- memset (&ret->locations, 0, cdw_number_of_elements);
- ret->type = 0;
- ret->expr = 0;
- ret->decl_attr = 0;
- ret->attrs = 0;
+ memset (ret, 0, sizeof *ret);
ret->align_log = -1;
ret->typespec_word = cts_none;
ret->storage_class = csc_none;
ret->expr_const_operands = true;
- ret->declspecs_seen_p = false;
ret->typespec_kind = ctsk_none;
- ret->non_sc_seen_p = false;
- ret->typedef_p = false;
- ret->explicit_signed_p = false;
- ret->deprecated_p = false;
- ret->default_int_p = false;
- ret->long_p = false;
- ret->long_long_p = false;
- ret->short_p = false;
- ret->signed_p = false;
- ret->unsigned_p = false;
- ret->complex_p = false;
- ret->inline_p = false;
- ret->noreturn_p = false;
- ret->thread_p = false;
- ret->thread_gnu_p = false;
- ret->const_p = false;
- ret->volatile_p = false;
- ret->atomic_p = false;
- ret->restrict_p = false;
- ret->saturating_p = false;
- ret->alignas_p = false;
ret->address_space = ADDR_SPACE_GENERIC;
return ret;
}
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: Fix incomplete initialization of declspecs
2016-02-10 20:01 ` Fix incomplete initialization of declspecs Bernd Schmidt
@ 2016-02-10 21:00 ` Joseph Myers
0 siblings, 0 replies; 2+ messages in thread
From: Joseph Myers @ 2016-02-10 21:00 UTC (permalink / raw)
To: Bernd Schmidt; +Cc: GCC Patches
On Wed, 10 Feb 2016, Bernd Schmidt wrote:
> I've noticed that build_null_declspecs fails to clear out all location
> information since it's missing a multiplication with the type size. The
> simplest fix seems to be to just clear the entire structure.
>
> Bootstrapping & testing now on x86_64-linux, ok if that succeeds? Depending on
> what we do for 69733, this might be a prerequisite patch.
OK.
--
Joseph S. Myers
joseph@codesourcery.com
^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2016-02-10 21:00 UTC | newest]
Thread overview: 2+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
[not found] <56BB9471.8070901@t-online.de>
2016-02-10 20:01 ` Fix incomplete initialization of declspecs Bernd Schmidt
2016-02-10 21:00 ` Joseph Myers
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).