5b1ad43c2b
Fixes #61355. The __dso_handle decl was introduced incorrectly into the startup objects during the integration test cleanup which moved the integration tests away from using an artificial sysroot to using -nostdlib. Having it in the startup creates the duplicate symbol error when one does not use -nostdlib. Since this is an integration test only problem, it is meaningful to keep it in the integration test anyway. Differential Revision: https://reviews.llvm.org/D145898
41 lines
1.2 KiB
C++
41 lines
1.2 KiB
C++
//===-- Simple malloc and free for use with integration tests -------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include <stddef.h>
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#include <stdint.h>
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// Integration tests cannot use the SCUDO standalone allocator as SCUDO pulls
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// various other parts of the libc. Since SCUDO development does not use
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// LLVM libc build rules, it is very hard to keep track or pull all that SCUDO
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// requires. Hence, as a work around for this problem, we use a simple allocator
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// which just hands out continuous blocks from a statically allocated chunk of
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// memory.
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static uint8_t memory[16384];
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static uint8_t *ptr = memory;
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extern "C" {
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void *malloc(size_t s) {
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void *mem = ptr;
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ptr += s;
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return mem;
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}
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void free(void *) {}
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void *realloc(void *ptr, size_t s) {
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free(ptr);
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return malloc(s);
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}
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// Integration tests are linked with -nostdlib. BFD linker expects
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// __dso_handle when -nostdlib is used.
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void *__dso_handle = nullptr;
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} // extern "C"
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