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SwiftDemangle: correct linkage for COFF targets

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This adds the DLL storage attribute on COFF, and switches to protected
visibility on ELF for the interfaces as a small optimization.
This commit is contained in:
Saleem Abdulrasool
2018-02-12 11:41:48 -08:00
parent 8ed891a287
commit 72f565b2ed
2 changed files with 52 additions and 2 deletions
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44
include/swift/SwiftDemangle/Platform.h Normal file
View File

@@ -0,0 +1,44 @@
//===-- SwiftDemangle/Platform.h - SwiftDemangle Platform Decls -*- C++ -*-===//
//
// 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
//
//===----------------------------------------------------------------------===//
#ifndef SWIFT_DEMANGLE_PLATFORM_H
#define SWIFT_DEMANGLE_PLATFORM_H
#if defined(__cplusplus)
extern "C" {
#endif
#if defined(SwiftDemangle_EXPORTS)
# if defined(__ELF__)
# define SWIFT_DEMANGLE_LINKAGE __attribute__((__visibility__("protected")))
# elif defined(__MACH__)
# define SWIFT_DEMANGLE_LINKAGE __attribute__((__visibility__("default")))
# else
# define SWIFT_DEMANGLE_LINKAGE __declspec(dllexport)
# endif
#else
# if defined(__ELF__)
# define SWIFT_DEMANGLE_LINKAGE __attribute__((__visibility__("default")))
# elif defined(__MACH__)
# define SWIFT_DEMANGLE_LINKAGE __attribute__((__visibility__("default")))
# else
# define SWIFT_DEMANGLE_LINKAGE __declspec(dllimport)
# endif
#endif
#if defined(__cplusplus)
}
#endif
#endif

10
include/swift/SwiftDemangle/SwiftDemangle.h
View File

@@ -19,6 +19,8 @@
#ifndef SWIFT_DEMANGLE_SWIFT_DEMANGLE_H
#define SWIFT_DEMANGLE_SWIFT_DEMANGLE_H
#include <swift/SwiftDemangle/Platform.h>
/// @{
/// Version constants for libswiftDemangle library.
@@ -40,8 +42,9 @@ extern "C" {
/// \returns the length of the demangled function name (even if greater than the
/// size of the output buffer) or 0 if the input is not a Swift-mangled function
/// name (in which cases \p OutputBuffer is left untouched).
size_t swift_demangle_getDemangledName(const char *MangledName, char *OutputBuffer,
size_t Length);
SWIFT_DEMANGLE_LINKAGE
size_t swift_demangle_getDemangledName(const char *MangledName,
char *OutputBuffer, size_t Length);
/// \brief Demangle Swift function names with module names and implicit self
/// and metatype type names in function signatures stripped.
@@ -49,6 +52,7 @@ size_t swift_demangle_getDemangledName(const char *MangledName, char *OutputBuff
/// \returns the length of the demangled function name (even if greater than the
/// size of the output buffer) or 0 if the input is not a Swift-mangled function
/// name (in which cases \p OutputBuffer is left untouched).
SWIFT_DEMANGLE_LINKAGE
size_t swift_demangle_getSimplifiedDemangledName(const char *MangledName,
char *OutputBuffer,
size_t Length);
@@ -59,6 +63,7 @@ size_t swift_demangle_getSimplifiedDemangledName(const char *MangledName,
/// \returns true if the function conforms to the Swift calling convention.
/// The return value is unspecified if the \p MangledName does not refer to a
/// function symbol.
SWIFT_DEMANGLE_LINKAGE
int swift_demangle_hasSwiftCallingConvention(const char *MangledName);
#ifdef __cplusplus
@@ -91,6 +96,7 @@ extern "C" {
/// \returns the length of the demangled function name (even if greater than the
/// size of the output buffer) or 0 if the input is not a Swift-mangled function
/// name (in which cases \p OutputBuffer is left untouched).
SWIFT_DEMANGLE_LINKAGE
size_t fnd_get_demangled_name(const char *MangledName, char *OutputBuffer,
size_t Length);