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[dev.typeparams] reflect: use internal/abi.FuncPCABI0 to take address of assembly functions
makeFuncStub and methodValueCall on AMD64 are marked as ABIInternal, so Go code can get their (unwrapped) addresses (using open-coded funcPC). Ues internal/abi.FuncPCABI0 instead, and un-mark the functions. Change-Id: Id28b6101ec7e55bc5a357d4236482cec70cd7e5d Reviewed-on: https://go-review.googlesource.com/c/go/+/322350 Trust: Cherry Mui <cherryyz@google.com> Run-TryBot: Cherry Mui <cherryyz@google.com> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Michael Knyszek <mknyszek@google.com>
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@ -24,10 +24,8 @@
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// See the comment on the declaration of makeFuncStub in makefunc.go
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// for more details.
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// No arg size here; runtime pulls arg map out of the func value.
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// makeFuncStub must be ABIInternal because it is placed directly
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// in function values.
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// This frame contains two locals. See the comment above LOCAL_RETVALID.
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TEXT ·makeFuncStub<ABIInternal>(SB),(NOSPLIT|WRAPPER),$312
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TEXT ·makeFuncStub(SB),(NOSPLIT|WRAPPER),$312
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NO_LOCAL_POINTERS
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// NO_LOCAL_POINTERS is a lie. The stack map for the two locals in this
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// frame is specially handled in the runtime. See the comment above LOCAL_RETVALID.
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@ -55,10 +53,8 @@ TEXT ·makeFuncStub<ABIInternal>(SB),(NOSPLIT|WRAPPER),$312
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// See the comment on the declaration of methodValueCall in makefunc.go
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// for more details.
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// No arg size here; runtime pulls arg map out of the func value.
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// methodValueCall must be ABIInternal because it is placed directly
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// in function values.
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// This frame contains two locals. See the comment above LOCAL_RETVALID.
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TEXT ·methodValueCall<ABIInternal>(SB),(NOSPLIT|WRAPPER),$312
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TEXT ·methodValueCall(SB),(NOSPLIT|WRAPPER),$312
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NO_LOCAL_POINTERS
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// NO_LOCAL_POINTERS is a lie. The stack map for the two locals in this
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// frame is specially handled in the runtime. See the comment above LOCAL_RETVALID.
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@ -52,11 +52,7 @@ func MakeFunc(typ Type, fn func(args []Value) (results []Value)) Value {
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t := typ.common()
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ftyp := (*funcType)(unsafe.Pointer(t))
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// Indirect Go func value (dummy) to obtain
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// actual code address. (A Go func value is a pointer
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// to a C function pointer. https://golang.org/s/go11func.)
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dummy := makeFuncStub
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code := **(**uintptr)(unsafe.Pointer(&dummy))
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code := abi.FuncPCABI0(makeFuncStub)
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// makeFuncImpl contains a stack map for use by the runtime
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_, _, abi := funcLayout(ftyp, nil)
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@ -111,11 +107,7 @@ func makeMethodValue(op string, v Value) Value {
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// v.Type returns the actual type of the method value.
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ftyp := (*funcType)(unsafe.Pointer(v.Type().(*rtype)))
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// Indirect Go func value (dummy) to obtain
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// actual code address. (A Go func value is a pointer
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// to a C function pointer. https://golang.org/s/go11func.)
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dummy := methodValueCall
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code := **(**uintptr)(unsafe.Pointer(&dummy))
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code := abi.FuncPCABI0(methodValueCall)
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// methodValue contains a stack map for use by the runtime
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_, _, abi := funcLayout(ftyp, nil)
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