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1daa3ee1f8
- Add ImageInspectionStatic.cpp to lookup protocol conformance and metadata sections in static binaries - For Linux, build libswiftImageInspectionShared.a and libswiftImageInspectionStatic.a for linking with libswiftCore.a. This allows static binaries to be built without linking to libdl. libswiftImageInspectionShared (ImageInspectionELF.cpp) is automatically compiled into libswiftCore.so - Adds -static-executable option to swiftc to use along with -emit-executable that uses linker arguments in static-executable-args.lnk. This also requires a libicu to be compiled using the --libicu which has configure options that dont require libdl for accessing ICU datafiles - Static binaries only work on Linux at this time
55 lines
1.7 KiB
C++
55 lines
1.7 KiB
C++
//===-- ImageInspectionStatic.cpp -------------------------------*- C++ -*-===//
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//
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// This source file is part of the Swift.org open source project
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//
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// Copyright (c) 2016 Apple Inc. and the Swift project authors
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// Licensed under Apache License v2.0 with Runtime Library Exception
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//
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// See http://swift.org/LICENSE.txt for license information
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// See http://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
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//
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//===----------------------------------------------------------------------===//
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//
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// Implementation of functions to read data sections from static executable.
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//
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//===----------------------------------------------------------------------===//
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#include "ImageInspection.h"
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// Currently only tested on linux but should work for any ELF platform
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#if defined(__ELF__) && defined(__linux__)
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// These are defined in swift_sections.S
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// Used in swift_sections.S to mark the start of a section
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struct SectionInfo {
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uint64_t size;
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const uint8_t data[0];
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};
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extern const SectionInfo __swift2_protocol_conformances_start;
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extern const SectionInfo __swift2_type_metadata_start;
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void
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swift::initializeProtocolConformanceLookup() {
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addImageProtocolConformanceBlockCallback(
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__swift2_protocol_conformances_start.data,
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__swift2_protocol_conformances_start.size);
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}
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void
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swift::initializeTypeMetadataRecordLookup() {
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addImageTypeMetadataRecordBlockCallback(
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__swift2_type_metadata_start.data,
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__swift2_type_metadata_start.size);
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}
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// This is called from Errors.cpp when dumping a stack trace entry.
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// It could be implemented by parsing the ELF information in the
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// executable. For now it returns 0 for error (cant lookup address).
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int
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swift::lookupSymbol(const void *address, SymbolInfo *info) {
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return 0;
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}
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#endif
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