Bug #1203
Build warning
0%
Description
```
Leaving directory aosd.
In function ‘__copy_m’,
inlined from ‘__copy_move_a2’ at /usr/include/c++/12/bits/stl_algobase.h:495:30,
inlined from ‘__copy_move_a1’ at /usr/include/c++/12/bits/stl_algobase.h:522:42,
inlined from ‘__copy_move_a’ at /usr/include/c++/12/bits/stl_algobase.h:529:31,
inlined from ‘copy’ at /usr/include/c++/12/bits/stl_algobase.h:620:7,
inlined from ‘__uninit_copy’ at /usr/include/c++/12/bits/stl_uninitialized.h:147:27,
inlined from ‘uninitialized_copy’ at /usr/include/c++/12/bits/stl_uninitialized.h:185:15,
inlined from ‘__uninitialized_copy_a’ at /usr/include/c++/12/bits/stl_uninitialized.h:372:37,
inlined from ‘__uninitialized_move_if_noexcept_a’ at /usr/include/c++/12/bits/stl_uninitialized.h:397:2,
inlined from ‘_M_fill_insert’ at /usr/include/c++/12/bits/vector.tcc:594:7,
inlined from ‘resize’ at /usr/include/c++/12/bits/stl_vector.h:1032:18,
inlined from ‘mc_alloc’ at desmume/mc.cc:90:17,
inlined from ‘MMU_Init’ at desmume/MMU.cc:731:10,
inlined from ‘NDS_Init’ at desmume/NDSSystem.cc:43:10,
inlined from ‘play’ at plugin.cc:334:17:
/usr/include/c++/12/bits/stl_algobase.h:431:30: warning: ‘__builtin_memcpy’ writing 1 or more bytes into a region of size 0 overflows the destination [-Wstringop-overflow=]
431 | _builtin_memmove(_result, __first, sizeof(_Tp) * _Num);
| ^
In member function ‘allocate’,
inlined from ‘allocate’ at /usr/include/c++/12/bits/alloc_traits.h:464:28,
inlined from ‘_M_allocate’ at /usr/include/c++/12/bits/stl_vector.h:378:33,
inlined from ‘_M_fill_insert’ at /usr/include/c++/12/bits/vector.tcc:575:45,
inlined from ‘resize’ at /usr/include/c++/12/bits/stl_vector.h:1032:18,
inlined from ‘mc_alloc’ at desmume/mc.cc:90:17,
inlined from ‘MMU_Init’ at desmume/MMU.cc:731:10,
inlined from ‘NDS_Init’ at desmume/NDSSystem.cc:43:10,
inlined from ‘play’ at plugin.cc:334:17:
/usr/include/c++/12/bits/new_allocator.h:137:55: note: at offset 262144 into destination object of size 262144 allocated by ‘operator new’
137 | return static_cast<_Tp*>(GLIBCXX_OPERATOR_NEW(_n * sizeof(_Tp)));
|
Successfully linked console.so.
Leaving directory console.
```
No idea where it happens. Could it be console?
History
#1
Updated by Artem S. Tashkinov about 1 year ago
Updated by This is when compiling/building audacious-plugins-4.3-beta1.tar.bz2
#2
Updated by Thomas Lange about 1 year ago
Updated by Compile with -j1 or search for the "desmume/*.cc" folder/file. You will see this warning is from linking xsf.
--> https://github.com/audacious-media-player/audacious-plugins/pull/106#issuecomment-1133286466
Which compiler and build system do you use? Does the workaround work for you too?
#3
Updated by Artem S. Tashkinov about 1 year ago
Thomas Lange wrote:
Compile with -j1 or search for the "desmume/*.cc" folder/file. You will see this warning is from linking xsf.
--> https://github.com/audacious-media-player/audacious-plugins/pull/106#issuecomment-1133286466Which compiler and build system do you use? Does the workaround work for you too?
I use Fedora 37.
gcc --version gcc (GCC) 12.2.1 20221121 (Red Hat 12.2.1-4) export CFLAGS="-O2 -mtune=generic -pipe -flto=auto" export CXXFLAGS="$CFLAGS"
The issue is here:
Successfully compiled desmume/slot1_retail.cc (plugin). (the same errors) Successfully linked xsf.so.
#4
Updated by Artem S. Tashkinov about 1 year ago
The linked patch fixes the issue.
diff --git a/src/xsf/desmume/mc.cc b/src/xsf/desmume/mc.cc
index dd6e670b1..648a5c89e 100644
--- a/src/xsf/desmume/mc.cc
+++ b/src/xsf/desmume/mc.cc
@@ -87,7 +87,7 @@ void mc_init(memory_chip_t *mc, int type)
uint8_t *mc_alloc(memory_chip_t *mc, uint32_t size)
{
mc->data.clear();
- mc->data.resize(size, 0);
+ mc->data.resize(size);
mc->size = size;
mc->writeable_buffer = true;
#5
Updated by John Lindgren about 1 year ago
Updated by This seems to be the same as https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100366 which will supposedly be fixed in GCC 12.3.
#6
Updated by John Lindgren about 1 year ago
- Status changed from New to Rejected
Closing, as it's a compiler bug. The warning is a false-positive and harmless.
