39 lines
1.2 KiB
Diff
39 lines
1.2 KiB
Diff
From 705cbd8cbbfed2ee4416c0567217f7ef42ced443 Mon Sep 17 00:00:00 2001
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Message-Id: <705cbd8cbbfed2ee4416c0567217f7ef42ced443.1645562924.git.github@sicherha.de>
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From: Christoph Erhardt <github@sicherha.de>
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Date: Tue, 22 Feb 2022 21:21:18 +0100
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Subject: [PATCH] Fix compatibility with libstdc++ < 9
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mimalloc does not override the `nothrow` variants of the `delete`
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operator because it assumes that their implementation in libstdc++
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redirects to the default `delete` operators. This is not the case for
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libstdc++ < 9, where `std::free()` is called directly.
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Upstream bug: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68210
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This patch ensures that the `nothrow` `delete` operators are overridden
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as well.
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---
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main.cc | 5 +++++
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1 file changed, 5 insertions(+)
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diff --git a/main.cc b/main.cc
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index b390b0f7..2aea03a0 100644
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--- a/main.cc
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+++ b/main.cc
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@@ -6,6 +6,11 @@
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#ifdef USE_SYSTEM_MIMALLOC
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#include <mimalloc-new-delete.h>
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+
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+// Additionally override the nothrow delete operators for compatibility with
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+// buggy libstdc++ < 9
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+void operator delete(void* p, const std::nothrow_t&) noexcept { mi_free(p); }
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+void operator delete[](void* p, const std::nothrow_t&) noexcept { mi_free(p); }
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#endif
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namespace mold {
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--
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2.35.1
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