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//===--- 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_STATIC_IMAGE_INSPECTION)
#include "ImageInspection.h"
#include "ImageInspectionCommon.h"
extern "C" const char __dso_handle[];
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(__dso_handle, 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(__dso_handle, 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(__dso_handle, 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(__dso_handle,
start1, size1, start2, size2);
}
void swift::initializeAccessibleFunctionsLookup() {
void *start;
uintptr_t size;
GET_SECTION_START_AND_SIZE(start, size, MachOTextSegment,
MachOAccessibleFunctionsSection);
if (start != nullptr && size > 0) {
addImageAccessibleFunctionsBlockCallbackUnsafe(__dso_handle, start, size);
}
}
#endif // defined(__MACH__) && defined(SWIFT_RUNTIME_STATIC_IMAGE_INSPECTION)
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