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Amend af784385b4: Avoid vtable overhead

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When neither MSAN nor Valgrind are enabled, declare
Field::mark_unused_memory_as_defined() as an empty inline function,
instead of declaring it as a virtual function.
This commit is contained in:
Marko Mäkelä
2020-05-15 17:09:20 +03:00
parent 1cac6d4828
commit ff66d65a09
3 changed files with 16 additions and 5 deletions
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4
include/my_valgrind.h
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@@ -1,4 +1,4 @@
/* Copyright (C) 2010, 2019, MariaDB Corporation.
/* Copyright (C) 2010, 2020, MariaDB Corporation.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
@@ -32,6 +32,7 @@
#if defined(HAVE_VALGRIND_MEMCHECK_H) && defined(HAVE_valgrind)
# include <valgrind/memcheck.h>
# define HAVE_valgrind_or_MSAN
# define MEM_UNDEFINED(a,len) VALGRIND_MAKE_MEM_UNDEFINED(a,len)
# define MEM_MAKE_DEFINED(a,len) VALGRIND_MAKE_MEM_DEFINED(a,len)
# define MEM_NOACCESS(a,len) VALGRIND_MAKE_MEM_NOACCESS(a,len)
@@ -50,6 +51,7 @@ https://github.com/google/sanitizers/wiki/AddressSanitizerManualPoisoning */
# define REDZONE_SIZE 8
#elif __has_feature(memory_sanitizer)
# include <sanitizer/msan_interface.h>
# define HAVE_valgrind_or_MSAN
# define MEM_UNDEFINED(a,len) __msan_allocated_memory(a,len)
# define MEM_MAKE_DEFINED(a,len) __msan_unpoison(a,len)
# define MEM_NOACCESS(a,len) ((void) 0)