mirror of
https://github.com/apple/swift.git
synced 2025-12-21 12:14:44 +01:00
88 lines
3.0 KiB
C++
88 lines
3.0 KiB
C++
//===--- SwiftRT-ELF.cpp --------------------------------------------------===//
|
|
//
|
|
// 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
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "ImageInspectionCommon.h"
|
|
#include "swift/shims/MetadataSections.h"
|
|
|
|
#include <cstddef>
|
|
#include <new>
|
|
|
|
extern "C" const char __dso_handle[];
|
|
|
|
// Create empty sections to ensure that the start/stop symbols are synthesized
|
|
// by the linker. Otherwise, we may end up with undefined symbol references as
|
|
// the linker table section was never constructed.
|
|
|
|
#define DECLARE_SWIFT_SECTION(name) \
|
|
__asm__("\t.section " #name ",\"a\"\n"); \
|
|
__attribute__((__visibility__("hidden"),__aligned__(1))) extern const char __start_##name; \
|
|
__attribute__((__visibility__("hidden"),__aligned__(1))) extern const char __stop_##name;
|
|
|
|
extern "C" {
|
|
DECLARE_SWIFT_SECTION(swift5_protocols)
|
|
DECLARE_SWIFT_SECTION(swift5_protocol_conformances)
|
|
DECLARE_SWIFT_SECTION(swift5_type_metadata)
|
|
|
|
DECLARE_SWIFT_SECTION(swift5_typeref)
|
|
DECLARE_SWIFT_SECTION(swift5_reflstr)
|
|
DECLARE_SWIFT_SECTION(swift5_fieldmd)
|
|
DECLARE_SWIFT_SECTION(swift5_assocty)
|
|
DECLARE_SWIFT_SECTION(swift5_replace)
|
|
DECLARE_SWIFT_SECTION(swift5_replac2)
|
|
DECLARE_SWIFT_SECTION(swift5_builtin)
|
|
DECLARE_SWIFT_SECTION(swift5_capture)
|
|
DECLARE_SWIFT_SECTION(swift5_mpenum)
|
|
DECLARE_SWIFT_SECTION(swift5_accessible_functions)
|
|
DECLARE_SWIFT_SECTION(swift5_runtime_attributes)
|
|
}
|
|
|
|
#undef DECLARE_SWIFT_SECTION
|
|
|
|
namespace {
|
|
static swift::MetadataSections sections{};
|
|
}
|
|
|
|
__attribute__((__constructor__))
|
|
static void swift_image_constructor() {
|
|
#define SWIFT_SECTION_RANGE(name) \
|
|
{ reinterpret_cast<uintptr_t>(&__start_##name), \
|
|
static_cast<uintptr_t>(&__stop_##name - &__start_##name) }
|
|
|
|
::new (§ions) swift::MetadataSections {
|
|
swift::CurrentSectionMetadataVersion,
|
|
{ __dso_handle },
|
|
|
|
nullptr,
|
|
nullptr,
|
|
|
|
SWIFT_SECTION_RANGE(swift5_protocols),
|
|
SWIFT_SECTION_RANGE(swift5_protocol_conformances),
|
|
SWIFT_SECTION_RANGE(swift5_type_metadata),
|
|
|
|
SWIFT_SECTION_RANGE(swift5_typeref),
|
|
SWIFT_SECTION_RANGE(swift5_reflstr),
|
|
SWIFT_SECTION_RANGE(swift5_fieldmd),
|
|
SWIFT_SECTION_RANGE(swift5_assocty),
|
|
SWIFT_SECTION_RANGE(swift5_replace),
|
|
SWIFT_SECTION_RANGE(swift5_replac2),
|
|
SWIFT_SECTION_RANGE(swift5_builtin),
|
|
SWIFT_SECTION_RANGE(swift5_capture),
|
|
SWIFT_SECTION_RANGE(swift5_mpenum),
|
|
SWIFT_SECTION_RANGE(swift5_accessible_functions),
|
|
SWIFT_SECTION_RANGE(swift5_runtime_attributes),
|
|
};
|
|
|
|
#undef SWIFT_SECTION_RANGE
|
|
|
|
swift_addNewDSOImage(§ions);
|
|
}
|