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49a2e40632
Introduce a second base class for `ReqWrap` that does not depend on a template parameter and move the `req_wrap_queue_` field to it. This addresses undefined behaviour that occurs when casting to `ReqWrap<uv_req_t>` in the `ReqWrap` constructor. Refs: https://github.com/nodejs/node/issues/26131 PR-URL: https://github.com/nodejs/node/pull/26148 Reviewed-By: Daniel Bevenius <daniel.bevenius@gmail.com> Reviewed-By: James M Snell <jasnell@gmail.com>
68 lines
2.9 KiB
C++
68 lines
2.9 KiB
C++
#include "env.h"
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#include "base_object-inl.h"
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#include "handle_wrap.h"
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#include "util-inl.h"
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#include "req_wrap.h"
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#include "v8abbr.h"
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#include "node_context_data.h"
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#define NODEDBG_SYMBOL(Name) nodedbg_ ## Name
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// nodedbg_offset_CLASS__MEMBER__TYPE: Describes the offset to a class member.
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#define NODEDBG_OFFSET(Class, Member, Type) \
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NODEDBG_SYMBOL(offset_ ## Class ## __ ## Member ## __ ## Type)
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// These are the constants describing Node internal structures. Every constant
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// should use the format described above. These constants are declared as
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// global integers so that they'll be present in the generated node binary. They
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// also need to be declared outside any namespace to avoid C++ name-mangling.
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#define NODE_OFFSET_POSTMORTEM_METADATA(V) \
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V(BaseObject, persistent_handle_, v8_Persistent_v8_Object, \
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BaseObject::persistent_handle_) \
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V(Environment, handle_wrap_queue_, Environment_HandleWrapQueue, \
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Environment::handle_wrap_queue_) \
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V(Environment, req_wrap_queue_, Environment_ReqWrapQueue, \
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Environment::req_wrap_queue_) \
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V(HandleWrap, handle_wrap_queue_, ListNode_HandleWrap, \
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HandleWrap::handle_wrap_queue_) \
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V(Environment_HandleWrapQueue, head_, ListNode_HandleWrap, \
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Environment::HandleWrapQueue::head_) \
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V(ListNode_HandleWrap, next_, uintptr_t, ListNode<HandleWrap>::next_) \
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V(Environment_ReqWrapQueue, head_, ListNode_ReqWrapQueue, \
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Environment::ReqWrapQueue::head_) \
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V(ListNode_ReqWrap, next_, uintptr_t, ListNode<ReqWrapBase>::next_)
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extern "C" {
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int nodedbg_const_ContextEmbedderIndex__kEnvironment__int;
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uintptr_t nodedbg_offset_ExternalString__data__uintptr_t;
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uintptr_t nodedbg_offset_ReqWrap__req_wrap_queue___ListNode_ReqWrapQueue;
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#define V(Class, Member, Type, Accessor) \
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NODE_EXTERN uintptr_t NODEDBG_OFFSET(Class, Member, Type);
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NODE_OFFSET_POSTMORTEM_METADATA(V)
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#undef V
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}
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namespace node {
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int GenDebugSymbols() {
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nodedbg_const_ContextEmbedderIndex__kEnvironment__int =
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ContextEmbedderIndex::kEnvironment;
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nodedbg_offset_ExternalString__data__uintptr_t = NODE_OFF_EXTSTR_DATA;
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nodedbg_offset_ReqWrap__req_wrap_queue___ListNode_ReqWrapQueue =
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OffsetOf<ListNode<ReqWrapBase>, ReqWrap<uv_req_t>>(
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&ReqWrap<uv_req_t>::req_wrap_queue_);
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#define V(Class, Member, Type, Accessor) \
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NODEDBG_OFFSET(Class, Member, Type) = OffsetOf(&Accessor);
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NODE_OFFSET_POSTMORTEM_METADATA(V)
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#undef V
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return 1;
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}
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const int debug_symbols_generated = GenDebugSymbols();
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} // namespace node
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