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8e8851874c
Previously, patchable extern relocations are introduced to patch external variables used for multi versioning in compile once, run everywhere use case. The load instruction will be converted into a move with an patchable immediate which can be changed by bpf loader on the host. The kernel verifier has evolved and is able to load and propagate constant values, so compiler relocation becomes unnecessary. This patch removed codes related to this. Differential Revision: https://reviews.llvm.org/D68760 llvm-svn: 374367
33 lines
838 B
C++
33 lines
838 B
C++
//===- BPFCORE.h - Common info for Compile-Once Run-EveryWhere -*- C++ -*-===//
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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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#ifndef LLVM_LIB_TARGET_BPF_BPFCORE_H
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#define LLVM_LIB_TARGET_BPF_BPFCORE_H
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namespace llvm {
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class BPFCoreSharedInfo {
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public:
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enum OffsetRelocKind : uint32_t {
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FIELD_BYTE_OFFSET = 0,
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FIELD_BYTE_SIZE,
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FIELD_EXISTENCE,
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FIELD_SIGNEDNESS,
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FIELD_LSHIFT_U64,
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FIELD_RSHIFT_U64,
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MAX_FIELD_RELOC_KIND,
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};
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/// The attribute attached to globals representing a field access
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static const std::string AmaAttr;
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};
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} // namespace llvm
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#endif
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