forked from OSchip/llvm-project
73 lines
2.2 KiB
C
73 lines
2.2 KiB
C
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//===-- ModuleCache.h -------------------------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#ifndef utility_ModuleCache_h_
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#define utility_ModuleCache_h_
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#include "lldb/lldb-types.h"
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#include "lldb/lldb-forward.h"
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#include "lldb/Core/Error.h"
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#include "lldb/Host/FileSpec.h"
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#include <string>
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namespace lldb_private {
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class UUID;
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//----------------------------------------------------------------------
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/// @class ModuleCache ModuleCache.h "Utility/ModuleCache.h"
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/// @brief A module cache class.
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///
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/// Caches locally modules that are downloaded from remote targets.
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/// Each cached module maintains 2 views:
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/// - UUID view: /${CACHE_ROOT}/${PLATFORM_NAME}/.cache/${UUID}/${MODULE_FILENAME}
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/// - Sysroot view: /${CACHE_ROOT}/${PLATFORM_NAME}/${HOSTNAME}/${MODULE_FULL_FILEPATH}
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///
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/// UUID views stores a real module file, whereas Sysroot view holds a symbolic
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/// link to UUID-view file.
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///
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/// Example:
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/// UUID view : /tmp/lldb/remote-linux/.cache/30C94DC6-6A1F-E951-80C3-D68D2B89E576-D5AE213C/libc.so.6
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/// Sysroot view: /tmp/lldb/remote-linux/ubuntu/lib/x86_64-linux-gnu/libc.so.6
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//----------------------------------------------------------------------
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class ModuleCache
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{
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public:
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Error
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Put (const FileSpec &root_dir_spec,
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const char *hostname,
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const UUID &uuid,
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const FileSpec &platform_module_spec,
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const FileSpec &tmp_file);
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Error
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Get (const FileSpec &root_dir_spec,
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const char *hostname,
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const UUID &uuid,
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const FileSpec &platform_module_spec,
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FileSpec &cached_module_spec);
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private:
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static FileSpec
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GetModuleDirectory (const FileSpec &root_dir_spec, const UUID &uuid);
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static FileSpec
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GetHostSysRootModulePath (const FileSpec &root_dir_spec, const char *hostname, const FileSpec &platform_module_spec);
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static Error
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CreateHostSysRootModuleSymLink (const FileSpec &sysroot_module_path_spec, const FileSpec &module_file_path);
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};
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} // namespace lldb_private
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#endif // utility_ModuleCache_h_
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