| //===--- ImageInspectionStatic.cpp - image inspection for static stdlib ---===// |
| // |
| // This source file is part of the Swift.org open source project |
| // |
| // Copyright (c) 2014 - 2017 Apple Inc. and the Swift project authors |
| // Licensed under Apache License v2.0 with Runtime Library Exception |
| // |
| // See https://swift.org/LICENSE.txt for license information |
| // See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors |
| // |
| //===----------------------------------------------------------------------===// |
| /// |
| /// \file |
| /// |
| /// Implementation of ImageInspection for static stdlib (no dynamic loader |
| /// present) environments. Assumes that only a single image exists in memory. |
| /// |
| //===----------------------------------------------------------------------===// |
| |
| #if defined(__MACH__) && defined(SWIFT_RUNTIME_MACHO_NO_DYLD) |
| |
| #include "ImageInspection.h" |
| #include "ImageInspectionCommon.h" |
| |
| using namespace swift; |
| |
| #define GET_SECTION_START_AND_SIZE(start, size, _seg, _sec) \ |
| extern void *__s##_seg##_sec __asm("section$start$" _seg "$" _sec); \ |
| extern void *__e##_seg##_sec __asm("section$end$" _seg "$" _sec); \ |
| start = &__s##_seg##_sec; \ |
| size = (char *)&__e##_seg##_sec - (char *)&__s##_seg##_sec; |
| |
| void swift::initializeProtocolLookup() { |
| void *start; |
| uintptr_t size; |
| GET_SECTION_START_AND_SIZE(start, size, MachOTextSegment, |
| MachOProtocolsSection); |
| if (start == nullptr || size == 0) |
| return; |
| addImageProtocolsBlockCallbackUnsafe(start, size); |
| } |
| |
| void swift::initializeProtocolConformanceLookup() { |
| void *start; |
| uintptr_t size; |
| GET_SECTION_START_AND_SIZE(start, size, MachOTextSegment, |
| MachOProtocolConformancesSection); |
| if (start == nullptr || size == 0) |
| return; |
| addImageProtocolConformanceBlockCallbackUnsafe(start, size); |
| } |
| void swift::initializeTypeMetadataRecordLookup() { |
| void *start; |
| uintptr_t size; |
| GET_SECTION_START_AND_SIZE(start, size, MachOTextSegment, |
| MachOTypeMetadataRecordSection); |
| if (start == nullptr || size == 0) |
| return; |
| addImageTypeMetadataRecordBlockCallbackUnsafe(start, size); |
| } |
| |
| void swift::initializeDynamicReplacementLookup() { |
| void *start1; |
| uintptr_t size1; |
| GET_SECTION_START_AND_SIZE(start1, size1, MachOTextSegment, |
| MachODynamicReplacementSection); |
| if (start1 == nullptr || size1 == 0) |
| return; |
| void *start2; |
| uintptr_t size2; |
| GET_SECTION_START_AND_SIZE(start2, size2, MachOTextSegment, |
| MachODynamicReplacementSection); |
| if (start2 == nullptr || size2 == 0) |
| return; |
| addImageDynamicReplacementBlockCallback(start1, size1, start2, size2); |
| } |
| |
| #endif // defined(__MACH__) && defined(SWIFT_RUNTIME_MACHO_NO_DYLD) |