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[MC/Dwarf] Encode DW_CFA_advance_loc in target endianess.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239911 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Benjamin Kramer
2015-06-17 15:14:35 +00:00
parent d510c1085a
commit 4bf8188289
2 changed files with 76 additions and 9 deletions
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17
lib/MC/MCDwarf.cpp
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@@ -1590,18 +1590,17 @@ void MCDwarfFrameEmitter::EncodeAdvanceLoc(MCContext &Context,
OS << uint8_t(dwarf::DW_CFA_advance_loc1);
OS << uint8_t(AddrDelta);
} else if (isUInt<16>(AddrDelta)) {
// FIXME: check what is the correct behavior on a big endian machine.
OS << uint8_t(dwarf::DW_CFA_advance_loc2);
OS << uint8_t( AddrDelta & 0xff);
OS << uint8_t((AddrDelta >> 8) & 0xff);
if (Context.getAsmInfo()->isLittleEndian())
support::endian::Writer<support::little>(OS).write<uint16_t>(AddrDelta);
else
support::endian::Writer<support::big>(OS).write<uint16_t>(AddrDelta);
} else {
// FIXME: check what is the correct behavior on a big endian machine.
assert(isUInt<32>(AddrDelta));
OS << uint8_t(dwarf::DW_CFA_advance_loc4);
OS << uint8_t( AddrDelta & 0xff);
OS << uint8_t((AddrDelta >> 8) & 0xff);
OS << uint8_t((AddrDelta >> 16) & 0xff);
OS << uint8_t((AddrDelta >> 24) & 0xff);
if (Context.getAsmInfo()->isLittleEndian())
support::endian::Writer<support::little>(OS).write<uint32_t>(AddrDelta);
else
support::endian::Writer<support::big>(OS).write<uint32_t>(AddrDelta);
}
}