From 4e469e0c83799ad6d3698e7cfa51ef8a5f2a2c76 Mon Sep 17 00:00:00 2001
From: Matthijs Kooijman <matthijs@stdin.nl>
Date: Thu, 17 Sep 2020 17:22:41 +0200
Subject: Allow overriding selected operator new and delete functions
This makes these functions weak, so that a sketch or library can replace
them. This does not apply to all of these operators, only for the ones
that the C++ standard specifies as replaceable.
---
cores/arduino/new | 20 ++++++++++----------
1 file changed, 10 insertions(+), 10 deletions(-)
diff --git a/cores/arduino/new b/cores/arduino/new
index 3599571..fb60927 100644
--- a/cores/arduino/new
+++ b/cores/arduino/new
@@ -33,25 +33,25 @@ namespace std {
new_handler get_new_handler() noexcept;
} // namespace std
-void * operator new(size_t size);
-void * operator new[](size_t size);
+[[gnu::weak]] void * operator new(size_t size);
+[[gnu::weak]] void * operator new[](size_t size);
-void * operator new(size_t size, const std::nothrow_t tag) noexcept;
-void * operator new[](size_t size, const std::nothrow_t& tag) noexcept;
+[[gnu::weak]] void * operator new(size_t size, const std::nothrow_t tag) noexcept;
+[[gnu::weak]] void * operator new[](size_t size, const std::nothrow_t& tag) noexcept;
void * operator new(size_t size, void *place) noexcept;
void * operator new[](size_t size, void *place) noexcept;
-void operator delete(void * ptr) noexcept;
-void operator delete[](void * ptr) noexcept;
+[[gnu::weak]] void operator delete(void * ptr) noexcept;
+[[gnu::weak]] void operator delete[](void * ptr) noexcept;
#if __cplusplus >= 201402L
-void operator delete(void* ptr, size_t size) noexcept;
-void operator delete[](void * ptr, size_t size) noexcept;
+[[gnu::weak]] void operator delete(void* ptr, size_t size) noexcept;
+[[gnu::weak]] void operator delete[](void * ptr, size_t size) noexcept;
#endif // __cplusplus >= 201402L
-void operator delete(void* ptr, const std::nothrow_t& tag) noexcept;
-void operator delete[](void* ptr, const std::nothrow_t& tag) noexcept;
+[[gnu::weak]] void operator delete(void* ptr, const std::nothrow_t& tag) noexcept;
+[[gnu::weak]] void operator delete[](void* ptr, const std::nothrow_t& tag) noexcept;
void operator delete(void* ptr, void* place) noexcept;
void operator delete[](void* ptr, void* place) noexcept;
--
cgit v1.2.3-18-g5258