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* [Bug libstdc++/97570] New: avr-gcc: error: 'void* memalign' redeclared as different kind of entity
@ 2020-10-25 16:24 matwey.kornilov at gmail dot com
2020-10-26 10:49 ` [Bug libstdc++/97570] " redi at gcc dot gnu.org
` (9 more replies)
0 siblings, 10 replies; 11+ messages in thread
From: matwey.kornilov at gmail dot com @ 2020-10-25 16:24 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97570
Bug ID: 97570
Summary: avr-gcc: error: 'void* memalign' redeclared as
different kind of entity
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: libstdc++
Assignee: unassigned at gcc dot gnu.org
Reporter: matwey.kornilov at gmail dot com
Target Milestone: ---
Hi,
While I am trying to build avr-gcc from master with Freestanding C++ standard
library on x86_64 host system, I see the following compile error:
../../../../libstdc++-v3/libsupc++/new_opa.cc:56:18: error: 'void* memalign'
redeclared as different kind of entity
56 | void *memalign(size_t alignment, size_t size);
| ^~~~~~
../../../../libstdc++-v3/libsupc++/new_opa.cc:39:18: note: previous declaration
'void* memalign(std::size_t, std::size_t)'
39 | extern "C" void *memalign(std::size_t boundary, std::size_t size);
| ^~~~~~~~
../../../../libstdc++-v3/libsupc++/new_opa.cc:56:18: error: 'size_t' was not
declared in this scope; did you mean 'std::size_t'?
56 | void *memalign(size_t alignment, size_t size);
| ^~~~~~
| std::size_t
In file included from ../../../../libstdc++-v3/libsupc++/new_opa.cc:26:
/usr/src/gcc/avr-obj/avr/libstdc++-v3/include/avr/bits/c++config.h:280:33:
note: 'std::size_t' declared here
280 | typedef __SIZE_TYPE__ size_t;
| ^~~~~~
../../../../libstdc++-v3/libsupc++/new_opa.cc:56:36: error: 'size_t' was not
declared in this scope; did you mean 'std::size_t'?
56 | void *memalign(size_t alignment, size_t size);
| ^~~~~~
| std::size_t
In file included from ../../../../libstdc++-v3/libsupc++/new_opa.cc:26:
/usr/src/gcc/avr-obj/avr/libstdc++-v3/include/avr/bits/c++config.h:280:33:
note: 'std::size_t' declared here
280 | typedef __SIZE_TYPE__ size_t;
| ^~~~~~
I use binutils 2.35 and gcc 47d13acbda9a5d8eb57ff169ba74857cd54108e4
Steps to reproduce:
1. Build and install gcc without libstdc++:
# ../configure --prefix=/usr --target=avr --enable-languages=c,c++
--disable-nls --disable-libssp --with-dwarf2
# make
# make install
2. Build and install avr-libc 2.0
# ../configure --prefix=/usr --build=`../config.guess` --host=avr
# make
# make install
3. Rebuild gcc with Freestanding libstdc++
# ../configure --prefix=/usr --target=avr --enable-languages=c,c++
--disable-nls --disable-libssp --with-dwarf2 --with-newlib
--disable-__cxa_atexit --disable-threads --disable-shared --enable-static
--disable-sjlj-exceptions --enable-libstdcxx --enable-lto
--disable-hosted-libstdcxx
# make
See the error.
The following simple patch fixes the issue:
--- a/libstdc++-v3/libsupc++/new_opa.cc
+++ b/libstdc++-v3/libsupc++/new_opa.cc
@@ -53,7 +53,7 @@ extern "C"
# elif _GLIBCXX_HAVE_POSIX_MEMALIGN
void *posix_memalign(void **, size_t alignment, size_t size);
# elif _GLIBCXX_HAVE_MEMALIGN
- void *memalign(size_t alignment, size_t size);
+ void *memalign(std::size_t alignment, std::size_t size);
# endif
}
#endif
Then gcc and libstdc++ are compiled and installed successfully without any
further errors. But I doubt that this is correct way to handle this issue.
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug libstdc++/97570] avr-gcc: error: 'void* memalign' redeclared as different kind of entity
2020-10-25 16:24 [Bug libstdc++/97570] New: avr-gcc: error: 'void* memalign' redeclared as different kind of entity matwey.kornilov at gmail dot com
@ 2020-10-26 10:49 ` redi at gcc dot gnu.org
2020-10-26 12:36 ` cvs-commit at gcc dot gnu.org
` (8 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: redi at gcc dot gnu.org @ 2020-10-26 10:49 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97570
Jonathan Wakely <redi at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Ever confirmed|0 |1
Assignee|unassigned at gcc dot gnu.org |redi at gcc dot gnu.org
Status|UNCONFIRMED |ASSIGNED
Last reconfirmed| |2020-10-26
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug libstdc++/97570] avr-gcc: error: 'void* memalign' redeclared as different kind of entity
2020-10-25 16:24 [Bug libstdc++/97570] New: avr-gcc: error: 'void* memalign' redeclared as different kind of entity matwey.kornilov at gmail dot com
2020-10-26 10:49 ` [Bug libstdc++/97570] " redi at gcc dot gnu.org
@ 2020-10-26 12:36 ` cvs-commit at gcc dot gnu.org
2020-10-26 12:36 ` redi at gcc dot gnu.org
` (7 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2020-10-26 12:36 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97570
--- Comment #1 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Jonathan Wakely <redi@gcc.gnu.org>:
https://gcc.gnu.org/g:93e9a7bcd5434a24c945de33cd7fa01a25f68418
commit r11-4383-g93e9a7bcd5434a24c945de33cd7fa01a25f68418
Author: Jonathan Wakely <jwakely@redhat.com>
Date: Mon Oct 26 12:02:50 2020 +0000
libstdc++: Fix declarations of memalign etc. for freestanding [PR 97570]
libstdc++-v3/ChangeLog:
PR libstdc++/97570
* libsupc++/new_opa.cc: Declare size_t in global namespace.
Remove unused header.
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug libstdc++/97570] avr-gcc: error: 'void* memalign' redeclared as different kind of entity
2020-10-25 16:24 [Bug libstdc++/97570] New: avr-gcc: error: 'void* memalign' redeclared as different kind of entity matwey.kornilov at gmail dot com
2020-10-26 10:49 ` [Bug libstdc++/97570] " redi at gcc dot gnu.org
2020-10-26 12:36 ` cvs-commit at gcc dot gnu.org
@ 2020-10-26 12:36 ` redi at gcc dot gnu.org
2020-10-26 12:38 ` redi at gcc dot gnu.org
` (6 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: redi at gcc dot gnu.org @ 2020-10-26 12:36 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97570
--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Thanks for the report. It's fixed on the development trunk now, but I will also
backport it to the release branches.
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug libstdc++/97570] avr-gcc: error: 'void* memalign' redeclared as different kind of entity
2020-10-25 16:24 [Bug libstdc++/97570] New: avr-gcc: error: 'void* memalign' redeclared as different kind of entity matwey.kornilov at gmail dot com
` (2 preceding siblings ...)
2020-10-26 12:36 ` redi at gcc dot gnu.org
@ 2020-10-26 12:38 ` redi at gcc dot gnu.org
2021-04-19 9:19 ` cvs-commit at gcc dot gnu.org
` (5 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: redi at gcc dot gnu.org @ 2020-10-26 12:38 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97570
--- Comment #3 from Jonathan Wakely <redi at gcc dot gnu.org> ---
(In reply to Matwey V. Kornilov from comment #0)
> Then gcc and libstdc++ are compiled and installed successfully without any
> further errors.
P.S. this is great news. I've been meaning to check this myself for some time,
as I'd like libstdc++ to be usable (where appropriate) for Arduino projects.
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug libstdc++/97570] avr-gcc: error: 'void* memalign' redeclared as different kind of entity
2020-10-25 16:24 [Bug libstdc++/97570] New: avr-gcc: error: 'void* memalign' redeclared as different kind of entity matwey.kornilov at gmail dot com
` (3 preceding siblings ...)
2020-10-26 12:38 ` redi at gcc dot gnu.org
@ 2021-04-19 9:19 ` cvs-commit at gcc dot gnu.org
2021-04-19 9:50 ` cvs-commit at gcc dot gnu.org
` (4 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2021-04-19 9:19 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97570
--- Comment #4 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-10 branch has been updated by Jonathan Wakely
<redi@gcc.gnu.org>:
https://gcc.gnu.org/g:67e95b6908b842e437089e867e5eed6dbbe264f2
commit r10-9715-g67e95b6908b842e437089e867e5eed6dbbe264f2
Author: Jonathan Wakely <jwakely@redhat.com>
Date: Mon Oct 26 12:02:50 2020 +0000
libstdc++: Fix declarations of memalign etc. for freestanding [PR 97570]
libstdc++-v3/ChangeLog:
PR libstdc++/97570
* libsupc++/new_opa.cc: Declare size_t in global namespace.
Remove unused header.
(cherry picked from commit 93e9a7bcd5434a24c945de33cd7fa01a25f68418)
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug libstdc++/97570] avr-gcc: error: 'void* memalign' redeclared as different kind of entity
2020-10-25 16:24 [Bug libstdc++/97570] New: avr-gcc: error: 'void* memalign' redeclared as different kind of entity matwey.kornilov at gmail dot com
` (4 preceding siblings ...)
2021-04-19 9:19 ` cvs-commit at gcc dot gnu.org
@ 2021-04-19 9:50 ` cvs-commit at gcc dot gnu.org
2021-04-19 10:00 ` cvs-commit at gcc dot gnu.org
` (3 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2021-04-19 9:50 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97570
--- Comment #5 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-9 branch has been updated by Jonathan Wakely
<redi@gcc.gnu.org>:
https://gcc.gnu.org/g:9a7ad8ff80dd5bb3ab178588f0ec92aea5251121
commit r9-9360-g9a7ad8ff80dd5bb3ab178588f0ec92aea5251121
Author: Jonathan Wakely <jwakely@redhat.com>
Date: Mon Oct 26 12:02:50 2020 +0000
libstdc++: Fix declarations of memalign etc. for freestanding [PR 97570]
libstdc++-v3/ChangeLog:
PR libstdc++/97570
* libsupc++/new_opa.cc: Declare size_t in global namespace.
Remove unused header.
(cherry picked from commit 93e9a7bcd5434a24c945de33cd7fa01a25f68418)
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug libstdc++/97570] avr-gcc: error: 'void* memalign' redeclared as different kind of entity
2020-10-25 16:24 [Bug libstdc++/97570] New: avr-gcc: error: 'void* memalign' redeclared as different kind of entity matwey.kornilov at gmail dot com
` (5 preceding siblings ...)
2021-04-19 9:50 ` cvs-commit at gcc dot gnu.org
@ 2021-04-19 10:00 ` cvs-commit at gcc dot gnu.org
2021-04-19 10:01 ` redi at gcc dot gnu.org
` (2 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2021-04-19 10:00 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97570
--- Comment #6 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-8 branch has been updated by Jonathan Wakely
<redi@gcc.gnu.org>:
https://gcc.gnu.org/g:9f6c858f76983cbc76d447a06ebce43d98a1fcd2
commit r8-10850-g9f6c858f76983cbc76d447a06ebce43d98a1fcd2
Author: Jonathan Wakely <jwakely@redhat.com>
Date: Mon Oct 26 12:02:50 2020 +0000
libstdc++: Fix declarations of memalign etc. for freestanding [PR 97570]
libstdc++-v3/ChangeLog:
PR libstdc++/97570
* libsupc++/new_opa.cc: Declare size_t in global namespace.
Remove unused header.
(cherry picked from commit 93e9a7bcd5434a24c945de33cd7fa01a25f68418)
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug libstdc++/97570] avr-gcc: error: 'void* memalign' redeclared as different kind of entity
2020-10-25 16:24 [Bug libstdc++/97570] New: avr-gcc: error: 'void* memalign' redeclared as different kind of entity matwey.kornilov at gmail dot com
` (6 preceding siblings ...)
2021-04-19 10:00 ` cvs-commit at gcc dot gnu.org
@ 2021-04-19 10:01 ` redi at gcc dot gnu.org
2021-04-19 10:40 ` redi at gcc dot gnu.org
2021-07-22 14:25 ` redi at gcc dot gnu.org
9 siblings, 0 replies; 11+ messages in thread
From: redi at gcc dot gnu.org @ 2021-04-19 10:01 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97570
--- Comment #7 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Fixed for 8.5, 9.4 and 10.4
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug libstdc++/97570] avr-gcc: error: 'void* memalign' redeclared as different kind of entity
2020-10-25 16:24 [Bug libstdc++/97570] New: avr-gcc: error: 'void* memalign' redeclared as different kind of entity matwey.kornilov at gmail dot com
` (7 preceding siblings ...)
2021-04-19 10:01 ` redi at gcc dot gnu.org
@ 2021-04-19 10:40 ` redi at gcc dot gnu.org
2021-07-22 14:25 ` redi at gcc dot gnu.org
9 siblings, 0 replies; 11+ messages in thread
From: redi at gcc dot gnu.org @ 2021-04-19 10:40 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97570
Jonathan Wakely <redi at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Assignee|redi at gcc dot gnu.org |unassigned at gcc dot gnu.org
Status|ASSIGNED |NEW
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug libstdc++/97570] avr-gcc: error: 'void* memalign' redeclared as different kind of entity
2020-10-25 16:24 [Bug libstdc++/97570] New: avr-gcc: error: 'void* memalign' redeclared as different kind of entity matwey.kornilov at gmail dot com
` (8 preceding siblings ...)
2021-04-19 10:40 ` redi at gcc dot gnu.org
@ 2021-07-22 14:25 ` redi at gcc dot gnu.org
9 siblings, 0 replies; 11+ messages in thread
From: redi at gcc dot gnu.org @ 2021-07-22 14:25 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97570
Jonathan Wakely <redi at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Target Milestone|--- |8.5
Resolution|--- |FIXED
--- Comment #8 from Jonathan Wakely <redi at gcc dot gnu.org> ---
.
^ permalink raw reply [flat|nested] 11+ messages in thread
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