[libc-commits] [libc] [libc] implement vdso (PR #91572)

Nick Desaulniers via libc-commits libc-commits at lists.llvm.org
Fri Jun 21 10:43:43 PDT 2024


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@@ -0,0 +1,243 @@
+//===------------- Linux VDSO Implementation --------------------*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+#include "src/__support/OSUtil/linux/vdso.h"
+#include "src/__support/CPP/array.h"
+#include "src/__support/CPP/optional.h"
+#include "src/__support/CPP/string_view.h"
+#include "src/__support/threads/callonce.h"
+#include "src/__support/threads/linux/futex_word.h"
+#include "src/errno/libc_errno.h"
+#include <linux/auxvec.h>
+#include <linux/elf.h>
+
+// TODO: This is a temporary workaround to avoid including elf.h
+// Include our own headers for ElfW and friends once we have them.
----------------
nickdesaulniers wrote:

`ElfW` would be helpful in libc/startup/linux/do_start.cpp, too, since a bit of code in there assumes 64b targets.

https://github.com/llvm/llvm-project/pull/91572


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