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3e96531186
Use a dedicated MachO load command to annotate data-in-code regions.
This is the same format the linker produces for final executable images,
allowing consistency of representation and use of introspection tools
for both object and executable files.
Data-in-code regions are annotated via ".data_region"/".end_data_region"
directive pairs, with an optional region type.
data_region_directive := ".data_region" { region_type }
region_type := "jt8" | "jt16" | "jt32" | "jta32"
end_data_region_directive := ".end_data_region"
The previous handling of ARM-style "$d.*" labels was broken and has
been removed. Specifically, it didn't handle ARM vs. Thumb mode when
marking the end of the section.
rdar://11459456
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157062 91177308-0d34-0410-b5e6-96231b3b80d8
62 lines
1.5 KiB
C++
62 lines
1.5 KiB
C++
//===-- ARMMCAsmInfo.cpp - ARM asm properties -----------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file contains the declarations of the ARMMCAsmInfo properties.
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//
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//===----------------------------------------------------------------------===//
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#include "ARMMCAsmInfo.h"
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#include "llvm/Support/CommandLine.h"
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using namespace llvm;
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cl::opt<bool>
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EnableARMEHABI("arm-enable-ehabi", cl::Hidden,
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cl::desc("Generate ARM EHABI tables"),
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cl::init(false));
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void ARMMCAsmInfoDarwin::anchor() { }
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ARMMCAsmInfoDarwin::ARMMCAsmInfoDarwin() {
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Data64bitsDirective = 0;
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CommentString = "@";
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Code16Directive = ".code\t16";
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Code32Directive = ".code\t32";
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UseDataRegionDirectives = true;
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SupportsDebugInformation = true;
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// Exceptions handling
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ExceptionsType = ExceptionHandling::SjLj;
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}
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void ARMELFMCAsmInfo::anchor() { }
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ARMELFMCAsmInfo::ARMELFMCAsmInfo() {
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// ".comm align is in bytes but .align is pow-2."
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AlignmentIsInBytes = false;
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Data64bitsDirective = 0;
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CommentString = "@";
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PrivateGlobalPrefix = ".L";
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Code16Directive = ".code\t16";
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Code32Directive = ".code\t32";
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WeakRefDirective = "\t.weak\t";
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LCOMMDirectiveType = LCOMM::NoAlignment;
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HasLEB128 = true;
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SupportsDebugInformation = true;
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// Exceptions handling
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if (EnableARMEHABI)
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ExceptionsType = ExceptionHandling::ARM;
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}
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