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[embedded] Fix calling convention on embedded runtime APIs (switch @_silgen_name for @_cdecl)

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This commit is contained in:
Kuba Mracek
2024-01-29 15:37:46 -08:00
parent fcda8bc619
commit 6383d05ea1
2 changed files with 106 additions and 26 deletions
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76
stdlib/public/core/EmbeddedRuntime.swift
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@@ -48,10 +48,10 @@ public struct HeapObject {
/// Forward declarations of C functions
@_silgen_name("posix_memalign")
@_extern(c, "posix_memalign")
func posix_memalign(_: UnsafeMutablePointer<UnsafeMutableRawPointer?>, _: Int, _: Int) -> CInt
@_silgen_name("free")
@_extern(c, "free")
func free(_ p: Builtin.RawPointer)
@@ -81,8 +81,12 @@ public func swift_slowDealloc(_ ptr: UnsafeMutableRawPointer, _ size: Int, _ ali
free(ptr._rawValue)
}
@_silgen_name("swift_allocObject")
public func swift_allocObject(metadata: UnsafeMutablePointer<ClassMetadata>, requiredSize: Int, requiredAlignmentMask: Int) -> UnsafeMutablePointer<HeapObject> {
@_cdecl("swift_allocObject")
public func swift_allocObject(metadata: Builtin.RawPointer, requiredSize: Int, requiredAlignmentMask: Int) -> Builtin.RawPointer {
return swift_allocObject(metadata: UnsafeMutablePointer<ClassMetadata>(metadata), requiredSize: requiredSize, requiredAlignmentMask: requiredAlignmentMask)._rawValue
}
func swift_allocObject(metadata: UnsafeMutablePointer<ClassMetadata>, requiredSize: Int, requiredAlignmentMask: Int) -> UnsafeMutablePointer<HeapObject> {
let p = swift_slowAlloc(requiredSize, requiredAlignmentMask)!
let object = p.assumingMemoryBound(to: HeapObject.self)
_swift_embedded_set_heap_object_metadata_pointer(object, metadata)
@@ -90,13 +94,21 @@ public func swift_allocObject(metadata: UnsafeMutablePointer<ClassMetadata>, req
return object
}
@_silgen_name("swift_deallocObject")
public func swift_deallocObject(object: UnsafeMutablePointer<HeapObject>, allocatedSize: Int, allocatedAlignMask: Int) {
@_cdecl("swift_deallocObject")
public func swift_deallocObject(object: Builtin.RawPointer, allocatedSize: Int, allocatedAlignMask: Int) {
swift_deallocObject(object: UnsafeMutablePointer<HeapObject>(object), allocatedSize: allocatedSize, allocatedAlignMask: allocatedAlignMask)
}
func swift_deallocObject(object: UnsafeMutablePointer<HeapObject>, allocatedSize: Int, allocatedAlignMask: Int) {
free(object._rawValue)
}
@_silgen_name("swift_deallocClassInstance")
public func swift_deallocClassInstance(object: UnsafeMutablePointer<HeapObject>, allocatedSize: Int, allocatedAlignMask: Int) {
@_cdecl("swift_deallocClassInstance")
public func swift_deallocClassInstance(object: Builtin.RawPointer, allocatedSize: Int, allocatedAlignMask: Int) {
swift_deallocClassInstance(object: UnsafeMutablePointer<HeapObject>(object), allocatedSize: allocatedSize, allocatedAlignMask: allocatedAlignMask)
}
func swift_deallocClassInstance(object: UnsafeMutablePointer<HeapObject>, allocatedSize: Int, allocatedAlignMask: Int) {
if (object.pointee.refcount & HeapObject.doNotFreeBit) != 0 {
return
}
@@ -104,15 +116,23 @@ public func swift_deallocClassInstance(object: UnsafeMutablePointer<HeapObject>,
free(object._rawValue)
}
@_silgen_name("swift_initStaticObject")
public func swift_initStaticObject(metadata: UnsafeMutablePointer<ClassMetadata>, object: UnsafeMutablePointer<HeapObject>) -> UnsafeMutablePointer<HeapObject> {
@_cdecl("swift_initStaticObject")
public func swift_initStaticObject(metadata: Builtin.RawPointer, object: Builtin.RawPointer) -> Builtin.RawPointer {
return swift_initStaticObject(metadata: UnsafeMutablePointer<ClassMetadata>(metadata), object: UnsafeMutablePointer<HeapObject>(object))._rawValue
}
func swift_initStaticObject(metadata: UnsafeMutablePointer<ClassMetadata>, object: UnsafeMutablePointer<HeapObject>) -> UnsafeMutablePointer<HeapObject> {
_swift_embedded_set_heap_object_metadata_pointer(object, metadata)
object.pointee.refcount = HeapObject.immortalRefCount
return object
}
@_silgen_name("swift_initStackObject")
public func swift_initStackObject(metadata: UnsafeMutablePointer<ClassMetadata>, object: UnsafeMutablePointer<HeapObject>) -> UnsafeMutablePointer<HeapObject> {
@_cdecl("swift_initStackObject")
public func swift_initStackObject(metadata: Builtin.RawPointer, object: Builtin.RawPointer) -> Builtin.RawPointer {
return swift_initStackObject(metadata: UnsafeMutablePointer<ClassMetadata>(metadata), object: UnsafeMutablePointer<HeapObject>(object))._rawValue
}
func swift_initStackObject(metadata: UnsafeMutablePointer<ClassMetadata>, object: UnsafeMutablePointer<HeapObject>) -> UnsafeMutablePointer<HeapObject> {
_swift_embedded_set_heap_object_metadata_pointer(object, metadata)
object.pointee.refcount = 1 | HeapObject.doNotFreeBit
return object
@@ -122,17 +142,21 @@ public func swift_initStackObject(metadata: UnsafeMutablePointer<ClassMetadata>,
/// Refcounting
@_silgen_name("swift_setDeallocating")
public func swift_setDeallocating(object: UnsafeMutablePointer<HeapObject>) {
@_cdecl("swift_setDeallocating")
public func swift_setDeallocating(object: Builtin.RawPointer) {
}
@_silgen_name("swift_isUniquelyReferenced_nonNull_native")
public func swift_isUniquelyReferenced_nonNull_native(object: UnsafeMutablePointer<HeapObject>) -> Bool {
@_cdecl("swift_isUniquelyReferenced_nonNull_native")
public func swift_isUniquelyReferenced_nonNull_native(object: Builtin.RawPointer) -> Bool {
return swift_isUniquelyReferenced_nonNull_native(object: UnsafeMutablePointer<HeapObject>(object))
}
func swift_isUniquelyReferenced_nonNull_native(object: UnsafeMutablePointer<HeapObject>) -> Bool {
let refcount = refcountPointer(for: object)
return loadAcquire(refcount) == 1
}
@_silgen_name("swift_retain")
@_cdecl("swift_retain")
public func swift_retain(object: Builtin.RawPointer) -> Builtin.RawPointer {
if Int(Builtin.ptrtoint_Word(object)) == 0 { return object }
let o = UnsafeMutablePointer<HeapObject>(object)
@@ -140,7 +164,7 @@ public func swift_retain(object: Builtin.RawPointer) -> Builtin.RawPointer {
}
// Cannot use UnsafeMutablePointer<HeapObject>? directly in the function argument or return value as it causes IRGen crashes
@_silgen_name("swift_retain_n")
@_cdecl("swift_retain_n")
public func swift_retain_n(object: Builtin.RawPointer, n: UInt32) -> Builtin.RawPointer {
if Int(Builtin.ptrtoint_Word(object)) == 0 { return object }
let o = UnsafeMutablePointer<HeapObject>(object)
@@ -158,21 +182,21 @@ func swift_retain_n_(object: UnsafeMutablePointer<HeapObject>, n: UInt32) -> Uns
return object
}
@_silgen_name("swift_release")
@_cdecl("swift_release")
public func swift_release(object: Builtin.RawPointer) {
if Int(Builtin.ptrtoint_Word(object)) == 0 { return }
let o = UnsafeMutablePointer<HeapObject>(object)
swift_release_n_(object: o, n: 1)
}
@_silgen_name("swift_release_n")
@_cdecl("swift_release_n")
public func swift_release_n(object: Builtin.RawPointer, n: UInt32) {
if Int(Builtin.ptrtoint_Word(object)) == 0 { return }
let o = UnsafeMutablePointer<HeapObject>(object)
swift_release_n_(object: o, n: n)
}
public func swift_release_n_(object: UnsafeMutablePointer<HeapObject>?, n: UInt32) {
func swift_release_n_(object: UnsafeMutablePointer<HeapObject>?, n: UInt32) {
guard let object else {
return
}
@@ -228,12 +252,12 @@ fileprivate func storeRelease(_ atomic: UnsafeMutablePointer<Int>, newValue: Int
/// Exclusivity checking
@_silgen_name("swift_beginAccess")
@_cdecl("swift_beginAccess")
public func swift_beginAccess(pointer: UnsafeMutableRawPointer, buffer: UnsafeMutableRawPointer, flags: UInt, pc: UnsafeMutableRawPointer) {
// TODO: Add actual exclusivity checking.
}
@_silgen_name("swift_endAccess")
@_cdecl("swift_endAccess")
public func swift_endAccess(buffer: UnsafeMutableRawPointer) {
// TODO: Add actual exclusivity checking.
}
@@ -242,7 +266,7 @@ public func swift_endAccess(buffer: UnsafeMutableRawPointer) {
// Once
@_silgen_name("swift_once")
@_cdecl("swift_once")
public func swift_once(predicate: UnsafeMutablePointer<Int>, fn: (@convention(c) (UnsafeMutableRawPointer)->()), context: UnsafeMutableRawPointer) {
let checkedLoadAcquire = { predicate in
let value = loadAcquire(predicate)
@@ -269,12 +293,12 @@ public func swift_once(predicate: UnsafeMutablePointer<Int>, fn: (@convention(c)
// Misc
@_silgen_name("swift_deletedMethodError")
@_cdecl("swift_deletedMethodError")
public func swift_deletedMethodError() -> Never {
Builtin.int_trap()
}
@_silgen_name("swift_willThrow")
@_silgen_name("swift_willThrow") // This is actually expected to be swiftcc (@_silgen_name and not @_cdecl).
public func swift_willThrow() throws {
}