6024e5c395
clang 20.0.0 (based on r547379) from build 12806354. Bug: http://b/379133546 Test: N/A Change-Id: I2eb8938af55d809de674be63cb30cf27e801862b Upstream-Commit: ad834e67b1105d15ef907f6255d4c96e8e733f57
85 lines
2.8 KiB
C++
85 lines
2.8 KiB
C++
//===-- SectionLoadHistory.h ------------------------------------*- 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 LLDB_TARGET_SECTIONLOADHISTORY_H
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#define LLDB_TARGET_SECTIONLOADHISTORY_H
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#include <map>
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#include <mutex>
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#include "lldb/lldb-public.h"
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namespace lldb_private {
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class SectionLoadHistory {
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public:
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enum : unsigned {
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// Pass eStopIDNow to any function that takes a stop ID to get the current
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// value.
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eStopIDNow = UINT32_MAX
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};
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// Constructors and Destructors
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SectionLoadHistory() = default;
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~SectionLoadHistory() {
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// Call clear since this takes a lock and clears the section load list in
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// case another thread is currently using this section load list
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Clear();
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}
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SectionLoadList &GetCurrentSectionLoadList();
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bool IsEmpty() const;
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void Clear();
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uint32_t GetLastStopID() const;
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// Get the section load address given a process stop ID
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lldb::addr_t GetSectionLoadAddress(uint32_t stop_id,
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const lldb::SectionSP §ion_sp);
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bool ResolveLoadAddress(uint32_t stop_id, lldb::addr_t load_addr,
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Address &so_addr);
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bool SetSectionLoadAddress(uint32_t stop_id,
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const lldb::SectionSP §ion_sp,
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lldb::addr_t load_addr,
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bool warn_multiple = false);
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// The old load address should be specified when unloading to ensure we get
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// the correct instance of the section as a shared library could be loaded at
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// more than one location.
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bool SetSectionUnloaded(uint32_t stop_id, const lldb::SectionSP §ion_sp,
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lldb::addr_t load_addr);
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// Unload all instances of a section. This function can be used on systems
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// that don't support multiple copies of the same shared library to be loaded
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// at the same time.
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size_t SetSectionUnloaded(uint32_t stop_id,
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const lldb::SectionSP §ion_sp);
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void Dump(Stream &s, Target *target);
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protected:
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SectionLoadList *GetSectionLoadListForStopID(uint32_t stop_id,
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bool read_only);
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typedef std::map<uint32_t, lldb::SectionLoadListSP> StopIDToSectionLoadList;
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StopIDToSectionLoadList m_stop_id_to_section_load_list;
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mutable std::recursive_mutex m_mutex;
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private:
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SectionLoadHistory(const SectionLoadHistory &) = delete;
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const SectionLoadHistory &operator=(const SectionLoadHistory &) = delete;
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};
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} // namespace lldb_private
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#endif // LLDB_TARGET_SECTIONLOADHISTORY_H
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