07355c1c08
Summary: These definitions are used to "augment" information received from the remote target with eh/debug frame and "generic" register numbers. Besides being verbose, this information was also incomplete (new registers like xmm16-31 were missing) and sometimes even downright wrong (ymm register numbers). Most of this information is available via llvm's MCRegisterInfo. This patch creates a new class, MCBasedABI, which retrieves the eh and debug frame register numbers this way. The tricky part here is that the llvm class uses all-caps register names, whereas lldb register are lowercase, and sometimes called slightly differently. Therefore this class introduces some hooks to allow a subclass to customize the MC lookup. The subclass also needs to suply the "generic" register numbers, as this is an lldb invention. This patch ports the x86_64 ABI classes to use the new register info mechanism. It also creates a new "ABIx86_64" class which can be used to house code common to x86_64 both ABIs. Right now, this just consists of a single function, but there are plenty of other things that could be moved here too. Reviewers: JDevlieghere, jasonmolenda Subscribers: mgorny, lldb-commits Tags: #lldb Differential Revision: https://reviews.llvm.org/D74244
27 lines
820 B
C++
27 lines
820 B
C++
//===-- ABITest.cpp -------------------------------------------------------===//
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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 "lldb/Target/ABI.h"
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#include "gtest/gtest.h"
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using namespace lldb_private;
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TEST(MCBasedABI, MapRegisterName) {
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auto map = [](std::string name) {
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MCBasedABI::MapRegisterName(name, "foo", "bar");
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return name;
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};
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EXPECT_EQ("bar", map("foo"));
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EXPECT_EQ("bar0", map("foo0"));
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EXPECT_EQ("bar47", map("foo47"));
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EXPECT_EQ("foo47x", map("foo47x"));
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EXPECT_EQ("fooo47", map("fooo47"));
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EXPECT_EQ("bar47", map("bar47"));
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}
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