Fix new GCC 9 warning: #632
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[ 874s] In function 'void* memcpy(void*, const void*, size_t)', [ 874s] inlined from 'virtual String* Item_func_format::val_str_ascii(String*)' at /home/abuild/rpmbuild/BUILD/percona-xtrabackup-2.4.12/sql/item_strfunc.cc:3214:13: [ 874s] /usr/include/bits/string_fortified.h:34:33: warning: 'void* __builtin_memcpy(void*, const void*, unsigned int)' writing 1 or more bytes into a region of size 0 overflows the destination [-Wstringop-overflow=] [ 874s] 34 | return __builtin___memcpy_chk (__dest, __src, __len, __bos0 (__dest)); It's analyzed here: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89350
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@marxin is this the only warning with GCC 9? |
Yes and only on a |
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[ 874s] In function 'void* memcpy(void*, const void*, size_t)',
[ 874s] inlined from 'virtual String* Item_func_format::val_str_ascii(String*)' at /home/abuild/rpmbuild/BUILD/percona-xtrabackup-2.4.12/sql/item_strfunc.cc:3214:13:
[ 874s] /usr/include/bits/string_fortified.h:34:33: warning: 'void* __builtin_memcpy(void*, const void*, unsigned int)' writing 1 or more bytes into a region of size 0 overflows the destination [-Wstringop-overflow=]
[ 874s] 34 | return __builtin___memcpy_chk (__dest, __src, __len, __bos0 (__dest));
It's analyzed here:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89350