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//===-- AVRTargetStreamer.cpp - AVR Target Streamer Methods ---------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file provides AVR specific target streamer methods.
//
//===----------------------------------------------------------------------===//
#include "AVRTargetStreamer.h"
#include "llvm/MC/MCContext.h"
namespace llvm {
AVRTargetStreamer::AVRTargetStreamer(MCStreamer &S) : MCTargetStreamer(S) {}
AVRTargetAsmStreamer::AVRTargetAsmStreamer(MCStreamer &S)
: AVRTargetStreamer(S) {}
void AVRTargetStreamer::finish() {
MCStreamer &OS = getStreamer();
MCContext &Context = OS.getContext();
MCSymbol *DoCopyData = Context.getOrCreateSymbol("__do_copy_data");
MCSymbol *DoClearBss = Context.getOrCreateSymbol("__do_clear_bss");
// FIXME: We can disable __do_copy_data if there are no static RAM variables.
OS.emitRawComment(" Declaring this symbol tells the CRT that it should");
OS.emitRawComment("copy all variables from program memory to RAM on startup");
OS.emitSymbolAttribute(DoCopyData, MCSA_Global);
OS.emitRawComment(" Declaring this symbol tells the CRT that it should");
OS.emitRawComment("clear the zeroed data section on startup");
OS.emitSymbolAttribute(DoClearBss, MCSA_Global);
}
} // end namespace llvm
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