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https://github.com/c64scene-ar/llvm-6502.git
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Make the big switch: Change MCSectionMachO to represent a section *semantically*
instead of syntactically as a string. This means that it keeps track of the segment, section, flags, etc directly and asmprints them in the right format. This also includes parsing and validation support for llvm-mc and "attribute(section)", so we should now start getting errors about invalid section attributes from the compiler instead of the assembler on darwin. Still todo: 1) Uniquing of darwin mcsections 2) Move all the Darwin stuff out to MCSectionMachO.[cpp|h] 3) there are a few FIXMEs, for example what is the syntax to get the S_GB_ZEROFILL segment type? git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78547 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
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e36df3fd31
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@ -67,25 +67,154 @@ namespace llvm {
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raw_ostream &OS) const;
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};
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/// MCSectionMachO - This represents a section on a Mach-O system (used by
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/// Mac OS X). On a Mac system, these are also described in
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/// /usr/include/mach-o/loader.h.
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class MCSectionMachO : public MCSection {
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std::string Name;
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char SegmentName[16]; // Not necessarily null terminated!
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char SectionName[16]; // Not necessarily null terminated!
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/// IsDirective - This is true if the section name is a directive, not
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/// something that should be printed with ".section".
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///
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/// FIXME: This is a hack. Switch to a semantic view of the section instead
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/// of a syntactic one.
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bool IsDirective;
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/// TypeAndAttributes - This is the SECTION_TYPE and SECTION_ATTRIBUTES
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/// field of a section, drawn from the enums below.
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unsigned TypeAndAttributes;
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MCSectionMachO(const StringRef &Name, bool IsDirective, SectionKind K,
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MCContext &Ctx);
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/// Reserved2 - The 'reserved2' field of a section, used to represent the
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/// size of stubs, for example.
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unsigned Reserved2;
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MCSectionMachO(const StringRef &Segment, const StringRef &Section,
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unsigned TAA, unsigned reserved2, SectionKind K)
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: MCSection(K), TypeAndAttributes(TAA), Reserved2(reserved2) {
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assert(Segment.size() <= 16 && Section.size() <= 16 &&
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"Segment or section string too long");
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for (unsigned i = 0; i != 16; ++i) {
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if (i < Segment.size())
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SegmentName[i] = Segment[i];
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else
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SegmentName[i] = 0;
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if (i < Section.size())
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SectionName[i] = Section[i];
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else
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SectionName[i] = 0;
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}
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}
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public:
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static MCSectionMachO *Create(const StringRef &Name, bool IsDirective,
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static MCSectionMachO *Create(const StringRef &Segment,
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const StringRef &Section,
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unsigned TypeAndAttributes,
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unsigned Reserved2,
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SectionKind K, MCContext &Ctx);
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/// These are the section type and attributes fields. A MachO section can
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/// have only one Type, but can have any of the attributes specified.
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enum {
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// TypeAndAttributes bitmasks.
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SECTION_TYPE = 0x000000FFU,
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SECTION_ATTRIBUTES = 0xFFFFFF00U,
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// Valid section types.
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/// S_REGULAR - Regular section.
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S_REGULAR = 0x00U,
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/// S_ZEROFILL - Zero fill on demand section.
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S_ZEROFILL = 0x01U,
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/// S_CSTRING_LITERALS - Section with literal C strings.
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S_CSTRING_LITERALS = 0x02U,
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/// S_4BYTE_LITERALS - Section with 4 byte literals.
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S_4BYTE_LITERALS = 0x03U,
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/// S_8BYTE_LITERALS - Section with 8 byte literals.
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S_8BYTE_LITERALS = 0x04U,
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/// S_LITERAL_POINTERS - Section with pointers to literals.
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S_LITERAL_POINTERS = 0x05U,
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/// S_NON_LAZY_SYMBOL_POINTERS - Section with non-lazy symbol pointers.
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S_NON_LAZY_SYMBOL_POINTERS = 0x06U,
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/// S_LAZY_SYMBOL_POINTERS - Section with lazy symbol pointers.
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S_LAZY_SYMBOL_POINTERS = 0x07U,
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/// S_SYMBOL_STUBS - Section with symbol stubs, byte size of stub in
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/// the Reserved2 field.
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S_SYMBOL_STUBS = 0x08U,
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/// S_SYMBOL_STUBS - Section with only function pointers for
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/// initialization.
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S_MOD_INIT_FUNC_POINTERS = 0x09U,
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/// S_MOD_INIT_FUNC_POINTERS - Section with only function pointers for
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/// termination.
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S_MOD_TERM_FUNC_POINTERS = 0x0AU,
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/// S_COALESCED - Section contains symbols that are to be coalesced.
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S_COALESCED = 0x0BU,
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/// S_GB_ZEROFILL - Zero fill on demand section (that can be larger than 4
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/// gigabytes).
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S_GB_ZEROFILL = 0x0CU,
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/// S_INTERPOSING - Section with only pairs of function pointers for
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/// interposing.
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S_INTERPOSING = 0x0DU,
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/// S_16BYTE_LITERALS - Section with only 16 byte literals.
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S_16BYTE_LITERALS = 0x0EU,
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/// S_DTRACE_DOF - Section contains DTrace Object Format.
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S_DTRACE_DOF = 0x0FU,
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/// S_LAZY_DYLIB_SYMBOL_POINTERS - Section with lazy symbol pointers to
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/// lazy loaded dylibs.
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S_LAZY_DYLIB_SYMBOL_POINTERS = 0x10U,
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const std::string &getName() const { return Name; }
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bool isDirective() const { return IsDirective; }
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LAST_KNOWN_SECTION_TYPE = S_LAZY_DYLIB_SYMBOL_POINTERS,
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// Valid section attributes.
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/// S_ATTR_PURE_INSTRUCTIONS - Section contains only true machine
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/// instructions.
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S_ATTR_PURE_INSTRUCTIONS = 1U << 31,
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/// S_ATTR_NO_TOC - Section contains coalesced symbols that are not to be
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/// in a ranlib table of contents.
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S_ATTR_NO_TOC = 1U << 30,
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/// S_ATTR_STRIP_STATIC_SYMS - Ok to strip static symbols in this section
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/// in files with the MY_DYLDLINK flag.
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S_ATTR_STRIP_STATIC_SYMS = 1U << 29,
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/// S_ATTR_NO_DEAD_STRIP - No dead stripping.
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S_ATTR_NO_DEAD_STRIP = 1U << 28,
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/// S_ATTR_LIVE_SUPPORT - Blocks are live if they reference live blocks.
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S_ATTR_LIVE_SUPPORT = 1U << 27,
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/// S_ATTR_SELF_MODIFYING_CODE - Used with i386 code stubs written on by
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/// dyld.
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S_ATTR_SELF_MODIFYING_CODE = 1U << 26,
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/// S_ATTR_DEBUG - A debug section.
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S_ATTR_DEBUG = 1U << 25,
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/// S_ATTR_SOME_INSTRUCTIONS - Section contains some machine instructions.
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S_ATTR_SOME_INSTRUCTIONS = 1U << 10,
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/// S_ATTR_EXT_RELOC - Section has external relocation entries.
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S_ATTR_EXT_RELOC = 1U << 9,
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/// S_ATTR_LOC_RELOC - Section has local relocation entries.
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S_ATTR_LOC_RELOC = 1U << 8
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};
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StringRef getSegmentName() const {
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// SegmentName is not necessarily null terminated!
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if (SegmentName[15])
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return StringRef(SegmentName, 16);
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return StringRef(SegmentName);
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}
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StringRef getSectionName() const {
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// SectionName is not necessarily null terminated!
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if (SectionName[15])
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return StringRef(SectionName, 16);
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return StringRef(SectionName);
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}
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unsigned getTypeAndAttributes() const { return TypeAndAttributes; }
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/// ParseSectionSpecifier - Parse the section specifier indicated by "Spec".
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/// This is a string that can appear after a .section directive in a mach-o
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/// flavored .s file. If successful, this fills in the specified Out
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/// parameters and returns an empty string. When an invalid section
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/// specifier is present, this returns a string indicating the problem.
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static std::string ParseSectionSpecifier(StringRef Spec, // In.
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StringRef &Segment, // Out.
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StringRef &Section, // Out.
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unsigned &TAA, // Out.
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unsigned &StubSize); // Out.
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virtual void PrintSwitchToSection(const TargetAsmInfo &TAI,
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raw_ostream &OS) const;
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@ -257,9 +257,30 @@ public:
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Mangler *) const;
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/// getMachOSection - Return the MCSection for the specified mach-o section.
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/// FIXME: Switch this to a semantic view eventually.
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const MCSection *getMachOSection(const char *Name, bool isDirective,
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SectionKind K) const;
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/// This requires the operands to be valid.
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const MCSection *getMachOSection(StringRef Segment, StringRef Section,
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unsigned TypeAndAttributes,
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SectionKind K) const {
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return getMachOSection(Segment, Section, TypeAndAttributes, 0, K);
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}
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const MCSection *getMachOSection(StringRef Segment, StringRef Section,
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unsigned TypeAndAttributes,
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unsigned Reserved2, SectionKind K) const;
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/// getTextCoalSection - Return the "__TEXT,__textcoal_nt" section we put weak
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/// symbols into.
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const MCSection *getTextCoalSection() const {
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return TextCoalSection;
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}
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/// getLazySymbolPointerSection - Return the section corresponding to
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/// the .lazy_symbol_pointer directive.
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const MCSection *getLazySymbolPointerSection() const;
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/// getNonLazySymbolPointerSection - Return the section corresponding to
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/// the .non_lazy_symbol_pointer directive.
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const MCSection *getNonLazySymbolPointerSection() const;
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};
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@ -222,7 +222,9 @@ void MCAsmStreamer::EmitZerofill(MCSection *Section, MCSymbol *Symbol,
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OS << ".zerofill ";
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// This is a mach-o specific directive.
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OS << '"' << ((MCSectionMachO*)Section)->getName() << '"';
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const MCSectionMachO *MOSection = ((const MCSectionMachO*)Section);
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OS << '"' << MOSection->getSegmentName() << ","
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<< MOSection->getSectionName() << '"';
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if (Symbol != NULL) {
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@ -115,25 +115,272 @@ void MCSectionELF::PrintSwitchToSection(const TargetAsmInfo &TAI,
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// MCSectionMachO
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//===----------------------------------------------------------------------===//
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MCSectionMachO *MCSectionMachO::
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Create(const StringRef &Name, bool IsDirective, SectionKind K, MCContext &Ctx) {
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return new (Ctx) MCSectionMachO(Name, IsDirective, K, Ctx);
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}
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/// SectionTypeDescriptors - These are strings that describe the various section
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/// types. This *must* be kept in order with and stay synchronized with the
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/// section type list.
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static const struct {
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const char *AssemblerName, *EnumName;
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} SectionTypeDescriptors[MCSectionMachO::LAST_KNOWN_SECTION_TYPE+1] = {
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{ "regular", "S_REGULAR" }, // 0x00
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{ 0, "S_ZEROFILL" }, // 0x01
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{ "cstring_literals", "S_CSTRING_LITERALS" }, // 0x02
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{ "4byte_literals", "S_4BYTE_LITERALS" }, // 0x03
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{ "8byte_literals", "S_8BYTE_LITERALS" }, // 0x04
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{ "literal_pointers", "S_LITERAL_POINTERS" }, // 0x05
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{ "non_lazy_symbol_pointers", "S_NON_LAZY_SYMBOL_POINTERS" }, // 0x06
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{ "lazy_symbol_pointers", "S_LAZY_SYMBOL_POINTERS" }, // 0x07
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{ "symbol_stubs", "S_SYMBOL_STUBS" }, // 0x08
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{ "mod_init_funcs", "S_MOD_INIT_FUNC_POINTERS" }, // 0x09
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{ "mod_term_funcs", "S_MOD_TERM_FUNC_POINTERS" }, // 0x0A
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{ "coalesced", "S_COALESCED" }, // 0x0B
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{ 0, /*FIXME??*/ "S_GB_ZEROFILL" }, // 0x0C
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{ "interposing", "S_INTERPOSING" }, // 0x0D
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{ "16byte_literals", "S_16BYTE_LITERALS" }, // 0x0E
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{ 0, /*FIXME??*/ "S_DTRACE_DOF" }, // 0x0F
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{ 0, /*FIXME??*/ "S_LAZY_DYLIB_SYMBOL_POINTERS" } // 0x10
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};
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MCSectionMachO::MCSectionMachO(const StringRef &name, bool isDirective,
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SectionKind K, MCContext &Ctx)
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: MCSection(K), Name(name), IsDirective(isDirective) {
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Ctx.SetSection(Name, this);
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/// SectionAttrDescriptors - This is an array of descriptors for section
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/// attributes. Unlike the SectionTypeDescriptors, this is not directly indexed
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/// by attribute, instead it is searched. The last entry has a zero AttrFlag
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/// value.
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static const struct {
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unsigned AttrFlag;
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const char *AssemblerName, *EnumName;
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} SectionAttrDescriptors[] = {
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#define ENTRY(ASMNAME, ENUM) \
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{ MCSectionMachO::ENUM, ASMNAME, #ENUM },
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ENTRY("pure_instructions", S_ATTR_PURE_INSTRUCTIONS)
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ENTRY("no_toc", S_ATTR_NO_TOC)
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ENTRY("strip_static_syms", S_ATTR_STRIP_STATIC_SYMS)
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ENTRY("no_dead_strip", S_ATTR_NO_DEAD_STRIP)
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ENTRY("live_support", S_ATTR_LIVE_SUPPORT)
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ENTRY("self_modifying_code", S_ATTR_SELF_MODIFYING_CODE)
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ENTRY("debug", S_ATTR_DEBUG)
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ENTRY(0 /*FIXME*/, S_ATTR_SOME_INSTRUCTIONS)
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ENTRY(0 /*FIXME*/, S_ATTR_EXT_RELOC)
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ENTRY(0 /*FIXME*/, S_ATTR_LOC_RELOC)
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#undef ENTRY
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{ 0, "none", 0 }
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};
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MCSectionMachO *MCSectionMachO::
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Create(const StringRef &Segment, const StringRef &Section,
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unsigned TypeAndAttributes, unsigned Reserved2,
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SectionKind K, MCContext &Ctx) {
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// S_SYMBOL_STUBS must be set for Reserved2 to be non-zero.
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return new (Ctx) MCSectionMachO(Segment, Section, TypeAndAttributes,
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Reserved2, K);
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}
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void MCSectionMachO::PrintSwitchToSection(const TargetAsmInfo &TAI,
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raw_ostream &OS) const {
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if (!isDirective())
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OS << "\t.section\t" << getName() << '\n';
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OS << "\t.section\t" << getSegmentName() << ',' << getSectionName();
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// Get the section type and attributes.
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unsigned TAA = getTypeAndAttributes();
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if (TAA == 0) {
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OS << '\n';
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return;
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}
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OS << ',';
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unsigned SectionType = TAA & MCSectionMachO::SECTION_TYPE;
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assert(SectionType <= MCSectionMachO::LAST_KNOWN_SECTION_TYPE &&
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"Invalid SectionType specified!");
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if (SectionTypeDescriptors[SectionType].AssemblerName)
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OS << SectionTypeDescriptors[SectionType].AssemblerName;
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else
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OS << getName() << '\n';
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OS << "<<" << SectionTypeDescriptors[SectionType].EnumName << ">>";
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// If we don't have any attributes, we're done.
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unsigned SectionAttrs = TAA & MCSectionMachO::SECTION_ATTRIBUTES;
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if (SectionAttrs == 0) {
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// If we have a S_SYMBOL_STUBS size specified, print it along with 'none' as
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// the attribute specifier.
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if (Reserved2 != 0)
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OS << ",none," << Reserved2;
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OS << '\n';
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return;
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}
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// Check each attribute to see if we have it.
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char Separator = ',';
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for (unsigned i = 0; SectionAttrDescriptors[i].AttrFlag; ++i) {
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// Check to see if we have this attribute.
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if ((SectionAttrDescriptors[i].AttrFlag & SectionAttrs) == 0)
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continue;
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// Yep, clear it and print it.
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SectionAttrs &= ~SectionAttrDescriptors[i].AttrFlag;
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OS << Separator;
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if (SectionAttrDescriptors[i].AssemblerName)
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OS << SectionAttrDescriptors[i].AssemblerName;
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else
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OS << "<<" << SectionAttrDescriptors[i].EnumName << ">>";
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Separator = '+';
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}
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assert(SectionAttrs == 0 && "Unknown section attributes!");
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// If we have a S_SYMBOL_STUBS size specified, print it.
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if (Reserved2 != 0)
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OS << ',' << Reserved2;
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OS << '\n';
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}
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/// StripSpaces - This removes leading and trailing spaces from the StringRef.
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static void StripSpaces(StringRef &Str) {
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while (!Str.empty() && isspace(Str[0]))
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Str = Str.substr(1);
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while (!Str.empty() && isspace(Str.back()))
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Str = Str.substr(0, Str.size()-1);
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}
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/// ParseSectionSpecifier - Parse the section specifier indicated by "Spec".
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/// This is a string that can appear after a .section directive in a mach-o
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/// flavored .s file. If successful, this fills in the specified Out
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/// parameters and returns an empty string. When an invalid section
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/// specifier is present, this returns a string indicating the problem.
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std::string MCSectionMachO::ParseSectionSpecifier(StringRef Spec, // In.
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StringRef &Segment, // Out.
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StringRef &Section, // Out.
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unsigned &TAA, // Out.
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unsigned &StubSize) { // Out.
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// Find the first comma.
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std::pair<StringRef, StringRef> Comma = Spec.split(',');
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// If there is no comma, we fail.
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if (Comma.second.empty())
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return "mach-o section specifier requires a segment and section "
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"separated by a comma";
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// Capture segment, remove leading and trailing whitespace.
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Segment = Comma.first;
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StripSpaces(Segment);
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// Verify that the segment is present and not too long.
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if (Segment.empty() || Segment.size() > 16)
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return "mach-o section specifier requires a segment whose length is "
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"between 1 and 16 characters";
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// Split the section name off from any attributes if present.
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Comma = Comma.second.split(',');
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// Capture section, remove leading and trailing whitespace.
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Section = Comma.first;
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StripSpaces(Section);
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// Verify that the section is present and not too long.
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if (Section.empty() || Section.size() > 16)
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return "mach-o section specifier requires a section whose length is "
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"between 1 and 16 characters";
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// If there is no comma after the section, we're done.
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TAA = 0;
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StubSize = 0;
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if (Comma.second.empty())
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return "";
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// Otherwise, we need to parse the section type and attributes.
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Comma = Comma.second.split(',');
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// Get the section type.
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StringRef SectionType = Comma.first;
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StripSpaces(SectionType);
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||||
// Figure out which section type it is.
|
||||
unsigned TypeID;
|
||||
for (TypeID = 0; TypeID !=MCSectionMachO::LAST_KNOWN_SECTION_TYPE+1; ++TypeID)
|
||||
if (SectionTypeDescriptors[TypeID].AssemblerName &&
|
||||
SectionType == SectionTypeDescriptors[TypeID].AssemblerName)
|
||||
break;
|
||||
|
||||
// If we didn't find the section type, reject it.
|
||||
if (TypeID > MCSectionMachO::LAST_KNOWN_SECTION_TYPE)
|
||||
return "mach-o section specifier uses an unknown section type";
|
||||
|
||||
// Remember the TypeID.
|
||||
TAA = TypeID;
|
||||
|
||||
// If we have no comma after the section type, there are no attributes.
|
||||
if (Comma.second.empty()) {
|
||||
// S_SYMBOL_STUBS always require a symbol stub size specifier.
|
||||
if (TAA == MCSectionMachO::S_SYMBOL_STUBS)
|
||||
return "mach-o section specifier of type 'symbol_stubs' requires a size "
|
||||
"specifier";
|
||||
return "";
|
||||
}
|
||||
|
||||
// Otherwise, we do have some attributes. Split off the size specifier if
|
||||
// present.
|
||||
Comma = Comma.second.split(',');
|
||||
StringRef Attrs = Comma.first;
|
||||
|
||||
// The attribute list is a '+' separated list of attributes.
|
||||
std::pair<StringRef, StringRef> Plus = Attrs.split('+');
|
||||
|
||||
while (1) {
|
||||
StringRef Attr = Plus.first;
|
||||
StripSpaces(Attr);
|
||||
|
||||
// Look up the attribute.
|
||||
for (unsigned i = 0; ; ++i) {
|
||||
if (SectionAttrDescriptors[i].AttrFlag == 0)
|
||||
return "mach-o section specifier has invalid attribute";
|
||||
|
||||
if (SectionAttrDescriptors[i].AssemblerName &&
|
||||
Attr == SectionAttrDescriptors[i].AssemblerName) {
|
||||
TAA |= SectionAttrDescriptors[i].AttrFlag;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
if (Plus.second.empty()) break;
|
||||
Plus = Plus.second.split('+');
|
||||
};
|
||||
|
||||
// Okay, we've parsed the section attributes, see if we have a stub size spec.
|
||||
if (Comma.second.empty()) {
|
||||
// S_SYMBOL_STUBS always require a symbol stub size specifier.
|
||||
if (TAA == MCSectionMachO::S_SYMBOL_STUBS)
|
||||
return "mach-o section specifier of type 'symbol_stubs' requires a size "
|
||||
"specifier";
|
||||
return "";
|
||||
}
|
||||
|
||||
// If we have a stub size spec, we must have a sectiontype of S_SYMBOL_STUBS.
|
||||
if ((TAA & MCSectionMachO::SECTION_TYPE) != MCSectionMachO::S_SYMBOL_STUBS)
|
||||
return "mach-o section specifier cannot have a stub size specified because "
|
||||
"it does not have type 'symbol_stubs'";
|
||||
|
||||
// Okay, if we do, it must be a number.
|
||||
StringRef StubSizeStr = Comma.second;
|
||||
StripSpaces(StubSizeStr);
|
||||
|
||||
// Convert the a null terminated buffer for strtoul.
|
||||
char TmpBuffer[32];
|
||||
if (StubSizeStr.size() >= 32)
|
||||
return"mach-o section specifier has a stub size specifier that is too long";
|
||||
|
||||
memcpy(TmpBuffer, StubSizeStr.data(), StubSizeStr.size());
|
||||
TmpBuffer[StubSizeStr.size()] = 0;
|
||||
|
||||
char *EndPtr;
|
||||
StubSize = strtoul(TmpBuffer, &EndPtr, 0);
|
||||
|
||||
if (EndPtr[0] != 0)
|
||||
return "mach-o section specifier has a malformed stub size";
|
||||
|
||||
return "";
|
||||
}
|
||||
|
||||
|
||||
//===----------------------------------------------------------------------===//
|
||||
// MCSectionCOFF
|
||||
//===----------------------------------------------------------------------===//
|
||||
|
@ -1286,19 +1286,21 @@ bool ARMAsmPrinter::doFinalization(Module &M) {
|
||||
O << '\n';
|
||||
|
||||
if (!FnStubs.empty()) {
|
||||
const MCSection *StubSection;
|
||||
if (TM.getRelocationModel() == Reloc::PIC_)
|
||||
StubSection = TLOFMacho.getMachOSection(".section __TEXT,__picsymbolstu"
|
||||
"b4,symbol_stubs,none,16", true,
|
||||
SectionKind::getText());
|
||||
else
|
||||
StubSection = TLOFMacho.getMachOSection(".section __TEXT,__symbol_stub4"
|
||||
",symbol_stubs,none,12", true,
|
||||
SectionKind::getText());
|
||||
unsigned StubSize = 12;
|
||||
const char *StubSectionName = "__symbol_stub4";
|
||||
|
||||
if (TM.getRelocationModel() == Reloc::PIC_) {
|
||||
StubSize = 16;
|
||||
StubSectionName = "__picsymbolstub4";
|
||||
}
|
||||
|
||||
const MCSection *StubSection
|
||||
= TLOFMacho.getMachOSection("__TEXT", StubSectionName,
|
||||
MCSectionMachO::S_SYMBOL_STUBS,
|
||||
StubSize, SectionKind::getText());
|
||||
|
||||
const MCSection *LazySymbolPointerSection
|
||||
= TLOFMacho.getMachOSection(".lazy_symbol_pointer", true,
|
||||
SectionKind::getMetadata());
|
||||
= TLOFMacho.getLazySymbolPointerSection();
|
||||
|
||||
// Output stubs for dynamically-linked functions
|
||||
for (StringMap<FnStubInfo>::iterator I = FnStubs.begin(),
|
||||
@ -1333,9 +1335,8 @@ bool ARMAsmPrinter::doFinalization(Module &M) {
|
||||
|
||||
// Output non-lazy-pointers for external and common global variables.
|
||||
if (!GVNonLazyPtrs.empty()) {
|
||||
SwitchToSection(TLOFMacho.getMachOSection(".non_lazy_symbol_pointer",
|
||||
true,
|
||||
SectionKind::getMetadata()));
|
||||
// Switch with ".non_lazy_symbol_pointer" directive.
|
||||
SwitchToSection(TLOFMacho.getNonLazySymbolPointerSection());
|
||||
for (StringMap<std::string>::iterator I = GVNonLazyPtrs.begin(),
|
||||
E = GVNonLazyPtrs.end(); I != E; ++I) {
|
||||
O << I->second << ":\n";
|
||||
|
@ -846,22 +846,19 @@ bool PPCDarwinAsmPrinter::doInitialization(Module &M) {
|
||||
|
||||
// Prime text sections so they are adjacent. This reduces the likelihood a
|
||||
// large data or debug section causes a branch to exceed 16M limit.
|
||||
|
||||
TargetLoweringObjectFileMachO &TLOFMacho =
|
||||
static_cast<TargetLoweringObjectFileMachO &>(getObjFileLowering());
|
||||
SwitchToSection(TLOFMacho.getMachOSection("\t.section __TEXT,__textcoal_nt,"
|
||||
"coalesced,pure_instructions", true,
|
||||
SectionKind::getText()));
|
||||
SwitchToSection(TLOFMacho.getTextCoalSection());
|
||||
if (TM.getRelocationModel() == Reloc::PIC_) {
|
||||
SwitchToSection(TLOFMacho.getMachOSection("\t.section __TEXT,__picsymbolstu"
|
||||
"b1,symbol_stubs,"
|
||||
"pure_instructions,32", true,
|
||||
SectionKind::getText()));
|
||||
SwitchToSection(TLOFMacho.getMachOSection("__TEXT", "__picsymbolstub1",
|
||||
MCSectionMachO::S_SYMBOL_STUBS |
|
||||
MCSectionMachO::S_ATTR_PURE_INSTRUCTIONS,
|
||||
32, SectionKind::getText()));
|
||||
} else if (TM.getRelocationModel() == Reloc::DynamicNoPIC) {
|
||||
SwitchToSection(TLOFMacho.getMachOSection("\t.section __TEXT,__symbol_stub1"
|
||||
",symbol_stubs,"
|
||||
"pure_instructions,16", true,
|
||||
SectionKind::getText()));
|
||||
SwitchToSection(TLOFMacho.getMachOSection("__TEXT","__symbol_stub1",
|
||||
MCSectionMachO::S_SYMBOL_STUBS |
|
||||
MCSectionMachO::S_ATTR_PURE_INSTRUCTIONS,
|
||||
16, SectionKind::getText()));
|
||||
}
|
||||
SwitchToSection(getObjFileLowering().getTextSection());
|
||||
|
||||
@ -985,17 +982,20 @@ bool PPCDarwinAsmPrinter::doFinalization(Module &M) {
|
||||
TargetLoweringObjectFileMachO &TLOFMacho =
|
||||
static_cast<TargetLoweringObjectFileMachO &>(getObjFileLowering());
|
||||
|
||||
|
||||
const MCSection *LSPSection = 0;
|
||||
if (!FnStubs.empty()) // .lazy_symbol_pointer
|
||||
LSPSection = TLOFMacho.getLazySymbolPointerSection();
|
||||
|
||||
|
||||
// Output stubs for dynamically-linked functions
|
||||
if (TM.getRelocationModel() == Reloc::PIC_ && !FnStubs.empty()) {
|
||||
const MCSection *StubSection =
|
||||
TLOFMacho.getMachOSection("\t.section __TEXT,__picsymbolstub1,"
|
||||
"symbol_stubs,pure_instructions,32", true,
|
||||
SectionKind::getText());
|
||||
const MCSection *LSPSection =
|
||||
TLOFMacho.getMachOSection(".lazy_symbol_pointer", true,
|
||||
SectionKind::getMetadata());
|
||||
|
||||
for (StringMap<FnStubInfo>::iterator I = FnStubs.begin(), E = FnStubs.end();
|
||||
TLOFMacho.getMachOSection("__TEXT", "__picsymbolstub1",
|
||||
MCSectionMachO::S_SYMBOL_STUBS |
|
||||
MCSectionMachO::S_ATTR_PURE_INSTRUCTIONS,
|
||||
32, SectionKind::getText());
|
||||
for (StringMap<FnStubInfo>::iterator I = FnStubs.begin(), E = FnStubs.end();
|
||||
I != E; ++I) {
|
||||
SwitchToSection(StubSection);
|
||||
EmitAlignment(4);
|
||||
@ -1020,13 +1020,11 @@ bool PPCDarwinAsmPrinter::doFinalization(Module &M) {
|
||||
O << (isPPC64 ? "\t.quad" : "\t.long") << " dyld_stub_binding_helper\n";
|
||||
}
|
||||
} else if (!FnStubs.empty()) {
|
||||
const MCSection *StubSection =
|
||||
TLOFMacho.getMachOSection("\t.section __TEXT,__symbol_stub1,symbol_stubs,"
|
||||
"pure_instructions,16", true,
|
||||
SectionKind::getText());
|
||||
const MCSection *LSPSection =
|
||||
TLOFMacho.getMachOSection(".lazy_symbol_pointer", true,
|
||||
SectionKind::getMetadata());
|
||||
const MCSection *StubSection =
|
||||
TLOFMacho.getMachOSection("__TEXT","__symbol_stub1",
|
||||
MCSectionMachO::S_SYMBOL_STUBS |
|
||||
MCSectionMachO::S_ATTR_PURE_INSTRUCTIONS,
|
||||
16, SectionKind::getText());
|
||||
|
||||
for (StringMap<FnStubInfo>::iterator I = FnStubs.begin(), E = FnStubs.end();
|
||||
I != E; ++I) {
|
||||
@ -1063,10 +1061,8 @@ bool PPCDarwinAsmPrinter::doFinalization(Module &M) {
|
||||
|
||||
// Output macho stubs for external and common global variables.
|
||||
if (!GVStubs.empty()) {
|
||||
const MCSection *TheSection =
|
||||
TLOFMacho.getMachOSection(".non_lazy_symbol_pointer", true,
|
||||
SectionKind::getMetadata());
|
||||
SwitchToSection(TheSection);
|
||||
// Switch with ".non_lazy_symbol_pointer" directive.
|
||||
SwitchToSection(TLOFMacho.getNonLazySymbolPointerSection());
|
||||
for (StringMap<std::string>::iterator I = GVStubs.begin(),
|
||||
E = GVStubs.end(); I != E; ++I) {
|
||||
O << I->second << ":\n";
|
||||
|
@ -510,118 +510,176 @@ getSectionForConstant(SectionKind Kind) const {
|
||||
|
||||
|
||||
const MCSection *TargetLoweringObjectFileMachO::
|
||||
getMachOSection(const char *Name, bool isDirective, SectionKind Kind) const {
|
||||
if (MCSection *S = getContext().GetSection(Name))
|
||||
return S;
|
||||
return MCSectionMachO::Create(Name, isDirective, Kind, getContext());
|
||||
getMachOSection(StringRef Segment, StringRef Section,
|
||||
unsigned TypeAndAttributes,
|
||||
unsigned Reserved2, SectionKind Kind) const {
|
||||
// FIXME: UNIQUE HERE.
|
||||
//if (MCSection *S = getContext().GetSection(Name))
|
||||
// return S;
|
||||
|
||||
return MCSectionMachO::Create(Segment, Section, TypeAndAttributes, Reserved2,
|
||||
Kind, getContext());
|
||||
}
|
||||
|
||||
|
||||
|
||||
void TargetLoweringObjectFileMachO::Initialize(MCContext &Ctx,
|
||||
const TargetMachine &TM) {
|
||||
TargetLoweringObjectFile::Initialize(Ctx, TM);
|
||||
TextSection = getMachOSection("\t.text", true, SectionKind::getText());
|
||||
DataSection = getMachOSection("\t.data", true, SectionKind::getDataRel());
|
||||
|
||||
CStringSection = getMachOSection("\t.cstring", true,
|
||||
SectionKind::getMergeable1ByteCString());
|
||||
UStringSection = getMachOSection("__TEXT,__ustring", false,
|
||||
SectionKind::getMergeable2ByteCString());
|
||||
FourByteConstantSection = getMachOSection("\t.literal4\n", true,
|
||||
SectionKind::getMergeableConst4());
|
||||
EightByteConstantSection = getMachOSection("\t.literal8\n", true,
|
||||
SectionKind::getMergeableConst8());
|
||||
TextSection // .text
|
||||
= getMachOSection("__TEXT", "__text",
|
||||
MCSectionMachO::S_ATTR_PURE_INSTRUCTIONS,
|
||||
SectionKind::getText());
|
||||
DataSection // .data
|
||||
= getMachOSection("__DATA", "__data", 0, SectionKind::getDataRel());
|
||||
|
||||
CStringSection // .cstring
|
||||
= getMachOSection("__TEXT", "__cstring", MCSectionMachO::S_CSTRING_LITERALS,
|
||||
SectionKind::getMergeable1ByteCString());
|
||||
UStringSection
|
||||
= getMachOSection("__TEXT","__ustring", 0,
|
||||
SectionKind::getMergeable2ByteCString());
|
||||
FourByteConstantSection // .literal4
|
||||
= getMachOSection("__TEXT", "__literal4", MCSectionMachO::S_4BYTE_LITERALS,
|
||||
SectionKind::getMergeableConst4());
|
||||
EightByteConstantSection // .literal8
|
||||
= getMachOSection("__TEXT", "__literal8", MCSectionMachO::S_8BYTE_LITERALS,
|
||||
SectionKind::getMergeableConst8());
|
||||
|
||||
// ld_classic doesn't support .literal16 in 32-bit mode, and ld64 falls back
|
||||
// to using it in -static mode.
|
||||
SixteenByteConstantSection = 0;
|
||||
if (TM.getRelocationModel() != Reloc::Static &&
|
||||
TM.getTargetData()->getPointerSize() == 32)
|
||||
SixteenByteConstantSection =
|
||||
getMachOSection("\t.literal16\n", true,
|
||||
SixteenByteConstantSection = // .literal16
|
||||
getMachOSection("__TEXT", "__literal16",MCSectionMachO::S_16BYTE_LITERALS,
|
||||
SectionKind::getMergeableConst16());
|
||||
else
|
||||
SixteenByteConstantSection = 0;
|
||||
|
||||
ReadOnlySection = getMachOSection("\t.const", true,
|
||||
SectionKind::getReadOnly());
|
||||
ReadOnlySection // .const
|
||||
= getMachOSection("__TEXT", "__const", 0, SectionKind::getReadOnly());
|
||||
|
||||
TextCoalSection =
|
||||
getMachOSection("\t__TEXT,__textcoal_nt,coalesced,pure_instructions",
|
||||
false, SectionKind::getText());
|
||||
ConstTextCoalSection = getMachOSection("\t__TEXT,__const_coal,coalesced",
|
||||
false, SectionKind::getText());
|
||||
ConstDataCoalSection = getMachOSection("\t__DATA,__const_coal,coalesced",
|
||||
false, SectionKind::getText());
|
||||
ConstDataSection = getMachOSection("\t.const_data", true,
|
||||
SectionKind::getReadOnlyWithRel());
|
||||
DataCoalSection = getMachOSection("\t__DATA,__datacoal_nt,coalesced",
|
||||
false, SectionKind::getDataRel());
|
||||
TextCoalSection
|
||||
= getMachOSection("__TEXT", "__textcoal_nt",
|
||||
MCSectionMachO::S_COALESCED |
|
||||
MCSectionMachO::S_ATTR_PURE_INSTRUCTIONS,
|
||||
SectionKind::getText());
|
||||
ConstTextCoalSection
|
||||
= getMachOSection("__TEXT", "__const_coal", MCSectionMachO::S_COALESCED,
|
||||
SectionKind::getText());
|
||||
ConstDataCoalSection
|
||||
= getMachOSection("__DATA","__const_coal", MCSectionMachO::S_COALESCED,
|
||||
SectionKind::getText());
|
||||
ConstDataSection // .const_data
|
||||
= getMachOSection("__DATA", "__const", 0,
|
||||
SectionKind::getReadOnlyWithRel());
|
||||
DataCoalSection
|
||||
= getMachOSection("__DATA","__datacoal_nt", MCSectionMachO::S_COALESCED,
|
||||
SectionKind::getDataRel());
|
||||
|
||||
if (TM.getRelocationModel() == Reloc::Static) {
|
||||
StaticCtorSection =
|
||||
getMachOSection(".constructor", true, SectionKind::getDataRel());
|
||||
StaticDtorSection =
|
||||
getMachOSection(".destructor", true, SectionKind::getDataRel());
|
||||
StaticCtorSection
|
||||
= getMachOSection("__TEXT", "__constructor", 0,SectionKind::getDataRel());
|
||||
StaticDtorSection
|
||||
= getMachOSection("__TEXT", "__destructor", 0, SectionKind::getDataRel());
|
||||
} else {
|
||||
StaticCtorSection =
|
||||
getMachOSection(".mod_init_func", true, SectionKind::getDataRel());
|
||||
StaticDtorSection =
|
||||
getMachOSection(".mod_term_func", true, SectionKind::getDataRel());
|
||||
StaticCtorSection
|
||||
= getMachOSection("__DATA", "__mod_init_func",
|
||||
MCSectionMachO::S_MOD_INIT_FUNC_POINTERS,
|
||||
SectionKind::getDataRel());
|
||||
StaticDtorSection
|
||||
= getMachOSection("__DATA", "__mod_term_func",
|
||||
MCSectionMachO::S_MOD_TERM_FUNC_POINTERS,
|
||||
SectionKind::getDataRel());
|
||||
}
|
||||
|
||||
// Exception Handling.
|
||||
LSDASection = getMachOSection("__DATA,__gcc_except_tab", false,
|
||||
LSDASection = getMachOSection("__DATA", "__gcc_except_tab", 0,
|
||||
SectionKind::getDataRel());
|
||||
EHFrameSection =
|
||||
getMachOSection("__TEXT,__eh_frame,coalesced,no_toc+strip_static_syms"
|
||||
"+live_support", false, SectionKind::getReadOnly());
|
||||
getMachOSection("__TEXT", "__eh_frame",
|
||||
MCSectionMachO::S_COALESCED |
|
||||
MCSectionMachO::S_ATTR_NO_TOC |
|
||||
MCSectionMachO::S_ATTR_STRIP_STATIC_SYMS |
|
||||
MCSectionMachO::S_ATTR_LIVE_SUPPORT,
|
||||
SectionKind::getReadOnly());
|
||||
|
||||
// Debug Information.
|
||||
// FIXME: Don't use 'directive' syntax: need flags for debug/regular??
|
||||
// FIXME: Need __DWARF segment.
|
||||
DwarfAbbrevSection =
|
||||
getMachOSection(".section __DWARF,__debug_abbrev,regular,debug", true,
|
||||
getMachOSection("__DWARF", "__debug_abbrev", MCSectionMachO::S_ATTR_DEBUG,
|
||||
SectionKind::getMetadata());
|
||||
DwarfInfoSection =
|
||||
getMachOSection(".section __DWARF,__debug_info,regular,debug", true,
|
||||
getMachOSection("__DWARF", "__debug_info", MCSectionMachO::S_ATTR_DEBUG,
|
||||
SectionKind::getMetadata());
|
||||
DwarfLineSection =
|
||||
getMachOSection(".section __DWARF,__debug_line,regular,debug", true,
|
||||
getMachOSection("__DWARF", "__debug_line", MCSectionMachO::S_ATTR_DEBUG,
|
||||
SectionKind::getMetadata());
|
||||
DwarfFrameSection =
|
||||
getMachOSection(".section __DWARF,__debug_frame,regular,debug", true,
|
||||
getMachOSection("__DWARF", "__debug_frame", MCSectionMachO::S_ATTR_DEBUG,
|
||||
SectionKind::getMetadata());
|
||||
DwarfPubNamesSection =
|
||||
getMachOSection(".section __DWARF,__debug_pubnames,regular,debug", true,
|
||||
getMachOSection("__DWARF", "__debug_pubnames", MCSectionMachO::S_ATTR_DEBUG,
|
||||
SectionKind::getMetadata());
|
||||
DwarfPubTypesSection =
|
||||
getMachOSection(".section __DWARF,__debug_pubtypes,regular,debug", true,
|
||||
getMachOSection("__DWARF", "__debug_pubtypes", MCSectionMachO::S_ATTR_DEBUG,
|
||||
SectionKind::getMetadata());
|
||||
DwarfStrSection =
|
||||
getMachOSection(".section __DWARF,__debug_str,regular,debug", true,
|
||||
getMachOSection("__DWARF", "__debug_str", MCSectionMachO::S_ATTR_DEBUG,
|
||||
SectionKind::getMetadata());
|
||||
DwarfLocSection =
|
||||
getMachOSection(".section __DWARF,__debug_loc,regular,debug", true,
|
||||
getMachOSection("__DWARF", "__debug_loc", MCSectionMachO::S_ATTR_DEBUG,
|
||||
SectionKind::getMetadata());
|
||||
DwarfARangesSection =
|
||||
getMachOSection(".section __DWARF,__debug_aranges,regular,debug", true,
|
||||
getMachOSection("__DWARF", "__debug_aranges", MCSectionMachO::S_ATTR_DEBUG,
|
||||
SectionKind::getMetadata());
|
||||
DwarfRangesSection =
|
||||
getMachOSection(".section __DWARF,__debug_ranges,regular,debug", true,
|
||||
getMachOSection("__DWARF", "__debug_ranges", MCSectionMachO::S_ATTR_DEBUG,
|
||||
SectionKind::getMetadata());
|
||||
DwarfMacroInfoSection =
|
||||
getMachOSection(".section __DWARF,__debug_macinfo,regular,debug", true,
|
||||
getMachOSection("__DWARF", "__debug_macinfo", MCSectionMachO::S_ATTR_DEBUG,
|
||||
SectionKind::getMetadata());
|
||||
DwarfDebugInlineSection =
|
||||
getMachOSection(".section __DWARF,__debug_inlined,regular,debug", true,
|
||||
getMachOSection("__DWARF", "__debug_inlined", MCSectionMachO::S_ATTR_DEBUG,
|
||||
SectionKind::getMetadata());
|
||||
}
|
||||
|
||||
/// getLazySymbolPointerSection - Return the section corresponding to
|
||||
/// the .lazy_symbol_pointer directive.
|
||||
const MCSection *TargetLoweringObjectFileMachO::
|
||||
getLazySymbolPointerSection() const {
|
||||
return getMachOSection("__DATA", "__la_symbol_ptr",
|
||||
MCSectionMachO::S_LAZY_SYMBOL_POINTERS,
|
||||
SectionKind::getMetadata());
|
||||
}
|
||||
|
||||
/// getNonLazySymbolPointerSection - Return the section corresponding to
|
||||
/// the .non_lazy_symbol_pointer directive.
|
||||
const MCSection *TargetLoweringObjectFileMachO::
|
||||
getNonLazySymbolPointerSection() const {
|
||||
return getMachOSection("__DATA", "__nl_symbol_ptr",
|
||||
MCSectionMachO::S_NON_LAZY_SYMBOL_POINTERS,
|
||||
SectionKind::getMetadata());
|
||||
}
|
||||
|
||||
|
||||
const MCSection *TargetLoweringObjectFileMachO::
|
||||
getExplicitSectionGlobal(const GlobalValue *GV, SectionKind Kind,
|
||||
Mangler *Mang, const TargetMachine &TM) const {
|
||||
return getMachOSection(GV->getSection().c_str(), false, Kind);
|
||||
// Parse the section specifier and create it if valid.
|
||||
StringRef Segment, Section;
|
||||
unsigned TAA, StubSize;
|
||||
std::string ErrorCode =
|
||||
MCSectionMachO::ParseSectionSpecifier(GV->getSection(), Segment, Section,
|
||||
TAA, StubSize);
|
||||
if (ErrorCode.empty())
|
||||
return getMachOSection(Segment, Section, TAA, StubSize, Kind);
|
||||
|
||||
|
||||
// If invalid, report the error with llvm_report_error.
|
||||
llvm_report_error("Global variable '" + GV->getNameStr() +
|
||||
"' has an invalid section specifier '" + GV->getSection() +
|
||||
"': " + ErrorCode + ".");
|
||||
// Fall back to dropping it into the data section.
|
||||
return DataSection;
|
||||
}
|
||||
|
||||
const MCSection *TargetLoweringObjectFileMachO::
|
||||
|
@ -918,9 +918,11 @@ bool X86ATTAsmPrinter::doFinalization(Module &M) {
|
||||
// Output stubs for dynamically-linked functions
|
||||
if (!FnStubs.empty()) {
|
||||
const MCSection *TheSection =
|
||||
TLOFMacho.getMachOSection("\t.section __IMPORT,__jump_table,symbol_stubs,"
|
||||
"self_modifying_code+pure_instructions,5", true,
|
||||
SectionKind::getMetadata());
|
||||
TLOFMacho.getMachOSection("__IMPORT", "__jump_table",
|
||||
MCSectionMachO::S_SYMBOL_STUBS |
|
||||
MCSectionMachO::S_ATTR_SELF_MODIFYING_CODE |
|
||||
MCSectionMachO::S_ATTR_PURE_INSTRUCTIONS,
|
||||
5, SectionKind::getMetadata());
|
||||
SwitchToSection(TheSection);
|
||||
for (StringMap<std::string>::iterator I = FnStubs.begin(),
|
||||
E = FnStubs.end(); I != E; ++I)
|
||||
@ -932,8 +934,8 @@ bool X86ATTAsmPrinter::doFinalization(Module &M) {
|
||||
// Output stubs for external and common global variables.
|
||||
if (!GVStubs.empty()) {
|
||||
const MCSection *TheSection =
|
||||
TLOFMacho.getMachOSection("\t.section __IMPORT,__pointers,"
|
||||
"non_lazy_symbol_pointers", true,
|
||||
TLOFMacho.getMachOSection("__IMPORT", "__pointers",
|
||||
MCSectionMachO::S_NON_LAZY_SYMBOL_POINTERS,
|
||||
SectionKind::getMetadata());
|
||||
SwitchToSection(TheSection);
|
||||
for (StringMap<std::string>::iterator I = GVStubs.begin(),
|
||||
|
@ -1,9 +1,9 @@
|
||||
; RUN: llvm-as < %s | llc -mtriple=arm-apple-darwin | FileCheck %s -check-prefix=DARWIN
|
||||
; RUN: llvm-as < %s | llc -mtriple=arm-linux-gnu | FileCheck %s -check-prefix=ELF
|
||||
; RUN: llvm-as < %s | llc -mtriple=arm-apple-darwin | FileCheck %s -check-prefix=DARWIN
|
||||
; RUN: llvm-as < %s | llc -mtriple=arm-linux-gnu | FileCheck %s -check-prefix=ELF
|
||||
; RUN: llvm-as < %s | llc -mtriple=arm-linux-gnueabi | FileCheck %s -check-prefix=GNUEABI
|
||||
|
||||
; DARWIN: .mod_init_func
|
||||
; DARWIN: .mod_term_func
|
||||
; DARWIN: .section __DATA,__mod_init_func,mod_init_funcs
|
||||
; DARWIN: .section __DATA,__mod_term_func,mod_term_funcs
|
||||
|
||||
; ELF: .section .ctors,"aw",%progbits
|
||||
; ELF: .section .dtors,"aw",%progbits
|
||||
|
@ -39,7 +39,7 @@ define available_externally i32 @exact_log2(i64 %x) nounwind {
|
||||
; PIC: L_exact_log2$slp:
|
||||
; PIC: .long L_exact_log2$lazy_ptr-(L_exact_log2$scv+8)
|
||||
|
||||
; PIC: .lazy_symbol_pointer
|
||||
; PIC: .section __DATA,__la_symbol_ptr,lazy_symbol_pointers
|
||||
; PIC: L_exact_log2$lazy_ptr:
|
||||
; PIC: .indirect_symbol _exact_log2
|
||||
; PIC: .long dyld_stub_binding_helper
|
||||
@ -55,7 +55,7 @@ define available_externally i32 @exact_log2(i64 %x) nounwind {
|
||||
; DYNAMIC: L_exact_log2$slp:
|
||||
; DYNAMIC: .long L_exact_log2$lazy_ptr
|
||||
|
||||
; DYNAMIC: .lazy_symbol_pointer
|
||||
; DYNAMIC: .section __DATA,__la_symbol_ptr,lazy_symbol_pointers
|
||||
; DYNAMIC: L_exact_log2$lazy_ptr:
|
||||
; DYNAMIC: .indirect_symbol _exact_log2
|
||||
; DYNAMIC: .long dyld_stub_binding_helper
|
||||
|
@ -44,7 +44,7 @@ entry:
|
||||
; PIC: mtctr r12
|
||||
; PIC: bctr
|
||||
|
||||
; PIC: .lazy_symbol_pointer
|
||||
; PIC: .section __DATA,__la_symbol_ptr,lazy_symbol_pointers
|
||||
; PIC: L_exact_log2$lazy_ptr:
|
||||
; PIC: .indirect_symbol _exact_log2
|
||||
; PIC: .long dyld_stub_binding_helper
|
||||
@ -60,7 +60,7 @@ entry:
|
||||
; DYNAMIC: mtctr r12
|
||||
; DYNAMIC: bctr
|
||||
|
||||
; DYNAMIC: .lazy_symbol_pointer
|
||||
; DYNAMIC: .section __DATA,__la_symbol_ptr,lazy_symbol_pointers
|
||||
; DYNAMIC: L_exact_log2$lazy_ptr:
|
||||
; DYNAMIC: .indirect_symbol _exact_log2
|
||||
; DYNAMIC: .long dyld_stub_binding_helper
|
||||
|
@ -1,38 +1,7 @@
|
||||
; RUN: llvm-as < %s | llc -mtriple=i686-apple-darwin | grep {\\.cstring} | count 1
|
||||
%struct.A = type { }
|
||||
%struct.NSString = type opaque
|
||||
%struct.__builtin_CFString = type { i32*, i32, i8*, i32 }
|
||||
%struct._objc_module = type { i32, i32, i8*, %struct._objc_symtab* }
|
||||
%struct._objc_symtab = type { i32, %struct.objc_selector**, i16, i16 }
|
||||
%struct.objc_object = type opaque
|
||||
%struct.objc_selector = type opaque
|
||||
@"\01L_unnamed_cfstring_0" = internal constant %struct.__builtin_CFString { i32* getelementptr ([0 x i32]* @__CFConstantStringClassReference, i32 0, i32 0), i32 1992, i8* getelementptr ([1 x i8]* @"\01LC", i32 0, i32 0), i32 0 }, section "__DATA, __cfstring" ; <%struct.__builtin_CFString*> [#uses=1]
|
||||
@__CFConstantStringClassReference = external global [0 x i32] ; <[0 x i32]*> [#uses=1]
|
||||
@"\01LC" = internal constant [1 x i8] zeroinitializer ; <[1 x i8]*> [#uses=1]
|
||||
@"\01L_OBJC_SELECTOR_REFERENCES_0" = internal global %struct.objc_selector* bitcast ([6 x i8]* @"\01L_OBJC_METH_VAR_NAME_0" to %struct.objc_selector*), section "__OBJC,__message_refs,literal_pointers,no_dead_strip", align 4 ; <%struct.objc_selector**> [#uses=2]
|
||||
@"\01L_OBJC_SYMBOLS" = internal global %struct._objc_symtab zeroinitializer, section "__OBJC,__symbols,regular,no_dead_strip", align 4 ; <%struct._objc_symtab*> [#uses=2]
|
||||
@"\01L_OBJC_METH_VAR_NAME_0" = internal global [6 x i8] c"bork:\00", section "__TEXT,__cstring,cstring_literals", align 1 ; <[6 x i8]*> [#uses=2]
|
||||
@"\01L_OBJC_IMAGE_INFO" = internal constant [2 x i32] zeroinitializer, section "__OBJC, __image_info,regular" ; <[2 x i32]*> [#uses=1]
|
||||
@"\01L_OBJC_CLASS_NAME_0" = internal global [1 x i8] zeroinitializer, section "__TEXT,__cstring,cstring_literals", align 1 ; <[1 x i8]*> [#uses=1]
|
||||
@"\01L_OBJC_MODULES" = internal global %struct._objc_module { i32 7, i32 16, i8* getelementptr ([1 x i8]* @"\01L_OBJC_CLASS_NAME_0", i32 0, i32 0), %struct._objc_symtab* @"\01L_OBJC_SYMBOLS" }, section "__OBJC,__module_info,regular,no_dead_strip", align 4 ; <%struct._objc_module*> [#uses=1]
|
||||
@llvm.used = appending global [6 x i8*] [ i8* bitcast (%struct.objc_selector** @"\01L_OBJC_SELECTOR_REFERENCES_0" to i8*), i8* bitcast (%struct._objc_symtab* @"\01L_OBJC_SYMBOLS" to i8*), i8* getelementptr ([6 x i8]* @"\01L_OBJC_METH_VAR_NAME_0", i32 0, i32 0), i8* bitcast ([2 x i32]* @"\01L_OBJC_IMAGE_INFO" to i8*), i8* getelementptr ([1 x i8]* @"\01L_OBJC_CLASS_NAME_0", i32 0, i32 0), i8* bitcast (%struct._objc_module* @"\01L_OBJC_MODULES" to i8*) ], section "llvm.metadata" ; <[6 x i8*]*> [#uses=0]
|
||||
; RUN: llvm-as < %s | llc -mtriple=i686-apple-darwin | FileCheck %s
|
||||
; CHECK: .section __TEXT,__cstring,cstring_literals
|
||||
|
||||
define void @func(%struct.A* %a) nounwind {
|
||||
entry:
|
||||
%a_addr = alloca %struct.A* ; <%struct.A**> [#uses=2]
|
||||
%a.0 = alloca %struct.objc_object* ; <%struct.objc_object**> [#uses=2]
|
||||
%"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0]
|
||||
store %struct.A* %a, %struct.A** %a_addr
|
||||
%0 = load %struct.A** %a_addr, align 4 ; <%struct.A*> [#uses=1]
|
||||
%1 = bitcast %struct.A* %0 to %struct.objc_object* ; <%struct.objc_object*> [#uses=1]
|
||||
store %struct.objc_object* %1, %struct.objc_object** %a.0, align 4
|
||||
%2 = load %struct.objc_selector** @"\01L_OBJC_SELECTOR_REFERENCES_0", align 4 ; <%struct.objc_selector*> [#uses=1]
|
||||
%3 = load %struct.objc_object** %a.0, align 4 ; <%struct.objc_object*> [#uses=1]
|
||||
call void bitcast (%struct.objc_object* (%struct.objc_object*, %struct.objc_selector*, ...)* @objc_msgSend to void (%struct.objc_object*, %struct.objc_selector*, %struct.NSString*)*)(%struct.objc_object* %3, %struct.objc_selector* %2, %struct.NSString* bitcast (%struct.__builtin_CFString* @"\01L_unnamed_cfstring_0" to %struct.NSString*)) nounwind
|
||||
br label %return
|
||||
@x = internal constant [1 x i8] zeroinitializer ; <[1 x i8]*> [#uses=1]
|
||||
|
||||
return: ; preds = %entry
|
||||
ret void
|
||||
}
|
||||
@y = global [1 x i8]* @x
|
||||
|
||||
declare %struct.objc_object* @objc_msgSend(%struct.objc_object*, %struct.objc_selector*, ...)
|
||||
|
@ -28,7 +28,7 @@
|
||||
; int * const G3 = &G1;
|
||||
@G3 = constant i32* @G1
|
||||
|
||||
; DARWIN: .const_data
|
||||
; DARWIN: .section __DATA,__const
|
||||
; DARWIN: .globl _G3
|
||||
; DARWIN: _G3:
|
||||
; DARWIN: .long _G1
|
||||
@ -37,7 +37,7 @@
|
||||
; _Complex long long const G4 = 34;
|
||||
@G4 = constant {i64,i64} { i64 34, i64 0 }
|
||||
|
||||
; DARWIN: .const
|
||||
; DARWIN: .section __TEXT,__const
|
||||
; DARWIN: _G4:
|
||||
; DARWIN: .long 34
|
||||
|
||||
@ -50,7 +50,7 @@
|
||||
; LINUX: G5:
|
||||
; LINUX: .long 47
|
||||
|
||||
; DARWIN: .data
|
||||
; DARWIN: .section __DATA,__data
|
||||
; DARWIN: .globl _G5
|
||||
; DARWIN: _G5:
|
||||
; DARWIN: .long 47
|
||||
@ -88,7 +88,7 @@
|
||||
|
||||
@G7 = constant [10 x i8] c"abcdefghi\00"
|
||||
|
||||
; DARWIN: .cstring
|
||||
; DARWIN: __TEXT,__cstring,cstring_literals
|
||||
; DARWIN: .globl _G7
|
||||
; DARWIN: _G7:
|
||||
; DARWIN: .asciz "abcdefghi"
|
||||
@ -111,7 +111,7 @@
|
||||
|
||||
@G9 = constant [4 x i32] [ i32 1, i32 2, i32 3, i32 0 ]
|
||||
|
||||
; DARWIN: .const
|
||||
; DARWIN: .section __TEXT,__const
|
||||
; DARWIN: .globl _G9
|
||||
; DARWIN: _G9:
|
||||
|
||||
|
@ -242,6 +242,17 @@ AsmToken AsmLexer::LexQuote() {
|
||||
return AsmToken(AsmToken::String, StringRef(TokStart, CurPtr - TokStart));
|
||||
}
|
||||
|
||||
StringRef AsmLexer::LexUntilEndOfStatement() {
|
||||
TokStart = CurPtr;
|
||||
|
||||
while (*CurPtr != '#' && // Start of line comment.
|
||||
*CurPtr != ';' && // End of statement marker.
|
||||
*CurPtr != '\n' &&
|
||||
*CurPtr != '\r' &&
|
||||
(*CurPtr != 0 || CurPtr != CurBuf->getBufferEnd()))
|
||||
++CurPtr;
|
||||
return StringRef(TokStart, CurPtr-TokStart);
|
||||
}
|
||||
|
||||
AsmToken AsmLexer::LexToken() {
|
||||
TokStart = CurPtr;
|
||||
|
@ -50,6 +50,9 @@ public:
|
||||
~AsmLexer();
|
||||
|
||||
SMLoc getLoc() const;
|
||||
|
||||
StringRef LexUntilEndOfStatement();
|
||||
|
||||
|
||||
/// EnterIncludeFile - Enter the specified file. This returns true on failure.
|
||||
bool EnterIncludeFile(const std::string &Filename);
|
||||
|
@ -404,95 +404,104 @@ bool AsmParser::ParseStatement() {
|
||||
if (IDVal == ".text")
|
||||
// FIXME: This changes behavior based on the -static flag to the
|
||||
// assembler.
|
||||
return ParseDirectiveSectionSwitch("__TEXT,__text",
|
||||
"regular,pure_instructions");
|
||||
return ParseDirectiveSectionSwitch("__TEXT", "__text",
|
||||
MCSectionMachO::S_ATTR_PURE_INSTRUCTIONS);
|
||||
if (IDVal == ".const")
|
||||
return ParseDirectiveSectionSwitch("__TEXT,__const");
|
||||
return ParseDirectiveSectionSwitch("__TEXT", "__const", 0);
|
||||
if (IDVal == ".static_const")
|
||||
return ParseDirectiveSectionSwitch("__TEXT,__static_const");
|
||||
return ParseDirectiveSectionSwitch("__TEXT", "__static_const", 0);
|
||||
if (IDVal == ".cstring")
|
||||
return ParseDirectiveSectionSwitch("__TEXT,__cstring",
|
||||
"cstring_literals");
|
||||
return ParseDirectiveSectionSwitch("__TEXT","__cstring",
|
||||
MCSectionMachO::S_CSTRING_LITERALS);
|
||||
if (IDVal == ".literal4")
|
||||
return ParseDirectiveSectionSwitch("__TEXT,__literal4", "4byte_literals");
|
||||
return ParseDirectiveSectionSwitch("__TEXT", "__literal4",
|
||||
MCSectionMachO::S_4BYTE_LITERALS);
|
||||
if (IDVal == ".literal8")
|
||||
return ParseDirectiveSectionSwitch("__TEXT,__literal8", "8byte_literals");
|
||||
return ParseDirectiveSectionSwitch("__TEXT", "__literal8",
|
||||
MCSectionMachO::S_8BYTE_LITERALS);
|
||||
if (IDVal == ".literal16")
|
||||
return ParseDirectiveSectionSwitch("__TEXT,__literal16",
|
||||
"16byte_literals");
|
||||
return ParseDirectiveSectionSwitch("__TEXT","__literal16",
|
||||
MCSectionMachO::S_16BYTE_LITERALS);
|
||||
if (IDVal == ".constructor")
|
||||
return ParseDirectiveSectionSwitch("__TEXT,__constructor");
|
||||
return ParseDirectiveSectionSwitch("__TEXT","__constructor", 0);
|
||||
if (IDVal == ".destructor")
|
||||
return ParseDirectiveSectionSwitch("__TEXT,__destructor");
|
||||
return ParseDirectiveSectionSwitch("__TEXT","__destructor", 0);
|
||||
if (IDVal == ".fvmlib_init0")
|
||||
return ParseDirectiveSectionSwitch("__TEXT,__fvmlib_init0");
|
||||
return ParseDirectiveSectionSwitch("__TEXT","__fvmlib_init0", 0);
|
||||
if (IDVal == ".fvmlib_init1")
|
||||
return ParseDirectiveSectionSwitch("__TEXT,__fvmlib_init1");
|
||||
if (IDVal == ".symbol_stub") // FIXME: Different on PPC.
|
||||
return ParseDirectiveSectionSwitch("__IMPORT,__jump_table,symbol_stubs",
|
||||
"self_modifying_code+pure_instructions,5");
|
||||
return ParseDirectiveSectionSwitch("__TEXT","__fvmlib_init1", 0);
|
||||
if (IDVal == ".symbol_stub")
|
||||
return ParseDirectiveSectionSwitch("__TEXT","__symbol_stub",
|
||||
MCSectionMachO::S_SYMBOL_STUBS |
|
||||
MCSectionMachO::S_ATTR_SELF_MODIFYING_CODE |
|
||||
MCSectionMachO::S_ATTR_PURE_INSTRUCTIONS,
|
||||
// FIXME: Different on PPC and ARM.
|
||||
16);
|
||||
// FIXME: .picsymbol_stub on PPC.
|
||||
if (IDVal == ".data")
|
||||
return ParseDirectiveSectionSwitch("__DATA,__data");
|
||||
return ParseDirectiveSectionSwitch("__DATA", "__data", 0);
|
||||
if (IDVal == ".static_data")
|
||||
return ParseDirectiveSectionSwitch("__DATA,__static_data");
|
||||
return ParseDirectiveSectionSwitch("__DATA", "__static_data", 0);
|
||||
if (IDVal == ".non_lazy_symbol_pointer")
|
||||
return ParseDirectiveSectionSwitch("__DATA,__nl_symbol_pointer",
|
||||
"non_lazy_symbol_pointers");
|
||||
return ParseDirectiveSectionSwitch("__DATA", "__nl_symbol_pointer",
|
||||
MCSectionMachO::S_NON_LAZY_SYMBOL_POINTERS);
|
||||
if (IDVal == ".lazy_symbol_pointer")
|
||||
return ParseDirectiveSectionSwitch("__DATA,__la_symbol_pointer",
|
||||
"lazy_symbol_pointers");
|
||||
return ParseDirectiveSectionSwitch("__DATA", "__la_symbol_pointer",
|
||||
MCSectionMachO::S_LAZY_SYMBOL_POINTERS);
|
||||
if (IDVal == ".dyld")
|
||||
return ParseDirectiveSectionSwitch("__DATA,__dyld");
|
||||
return ParseDirectiveSectionSwitch("__DATA", "__dyld", 0);
|
||||
if (IDVal == ".mod_init_func")
|
||||
return ParseDirectiveSectionSwitch("__DATA,__mod_init_func",
|
||||
"mod_init_funcs");
|
||||
return ParseDirectiveSectionSwitch("__DATA", "__mod_init_func",
|
||||
MCSectionMachO::S_MOD_INIT_FUNC_POINTERS);
|
||||
if (IDVal == ".mod_term_func")
|
||||
return ParseDirectiveSectionSwitch("__DATA,__mod_term_func",
|
||||
"mod_term_funcs");
|
||||
return ParseDirectiveSectionSwitch("__DATA", "__mod_term_func",
|
||||
MCSectionMachO::S_MOD_TERM_FUNC_POINTERS);
|
||||
if (IDVal == ".const_data")
|
||||
return ParseDirectiveSectionSwitch("__DATA,__const", "regular");
|
||||
return ParseDirectiveSectionSwitch("__DATA", "__const", 0);
|
||||
|
||||
|
||||
// FIXME: Verify attributes on sections.
|
||||
if (IDVal == ".objc_class")
|
||||
return ParseDirectiveSectionSwitch("__OBJC,__class");
|
||||
return ParseDirectiveSectionSwitch("__OBJC", "__class", 0);
|
||||
if (IDVal == ".objc_meta_class")
|
||||
return ParseDirectiveSectionSwitch("__OBJC,__meta_class");
|
||||
return ParseDirectiveSectionSwitch("__OBJC", "__meta_class", 0);
|
||||
if (IDVal == ".objc_cat_cls_meth")
|
||||
return ParseDirectiveSectionSwitch("__OBJC,__cat_cls_meth");
|
||||
return ParseDirectiveSectionSwitch("__OBJC", "__cat_cls_meth", 0);
|
||||
if (IDVal == ".objc_cat_inst_meth")
|
||||
return ParseDirectiveSectionSwitch("__OBJC,__cat_inst_meth");
|
||||
return ParseDirectiveSectionSwitch("__OBJC", "__cat_inst_meth", 0);
|
||||
if (IDVal == ".objc_protocol")
|
||||
return ParseDirectiveSectionSwitch("__OBJC,__protocol");
|
||||
return ParseDirectiveSectionSwitch("__OBJC", "__protocol", 0);
|
||||
if (IDVal == ".objc_string_object")
|
||||
return ParseDirectiveSectionSwitch("__OBJC,__string_object");
|
||||
return ParseDirectiveSectionSwitch("__OBJC", "__string_object", 0);
|
||||
if (IDVal == ".objc_cls_meth")
|
||||
return ParseDirectiveSectionSwitch("__OBJC,__cls_meth");
|
||||
return ParseDirectiveSectionSwitch("__OBJC", "__cls_meth", 0);
|
||||
if (IDVal == ".objc_inst_meth")
|
||||
return ParseDirectiveSectionSwitch("__OBJC,__inst_meth");
|
||||
return ParseDirectiveSectionSwitch("__OBJC", "__inst_meth", 0);
|
||||
if (IDVal == ".objc_cls_refs")
|
||||
return ParseDirectiveSectionSwitch("__OBJC,__cls_refs");
|
||||
return ParseDirectiveSectionSwitch("__OBJC", "__cls_refs", 0);
|
||||
if (IDVal == ".objc_message_refs")
|
||||
return ParseDirectiveSectionSwitch("__OBJC,__message_refs");
|
||||
return ParseDirectiveSectionSwitch("__OBJC", "__message_refs", 0);
|
||||
if (IDVal == ".objc_symbols")
|
||||
return ParseDirectiveSectionSwitch("__OBJC,__symbols");
|
||||
return ParseDirectiveSectionSwitch("__OBJC", "__symbols", 0);
|
||||
if (IDVal == ".objc_category")
|
||||
return ParseDirectiveSectionSwitch("__OBJC,__category");
|
||||
return ParseDirectiveSectionSwitch("__OBJC", "__category", 0);
|
||||
if (IDVal == ".objc_class_vars")
|
||||
return ParseDirectiveSectionSwitch("__OBJC,__class_vars");
|
||||
return ParseDirectiveSectionSwitch("__OBJC", "__class_vars", 0);
|
||||
if (IDVal == ".objc_instance_vars")
|
||||
return ParseDirectiveSectionSwitch("__OBJC,__instance_vars");
|
||||
return ParseDirectiveSectionSwitch("__OBJC", "__instance_vars", 0);
|
||||
if (IDVal == ".objc_module_info")
|
||||
return ParseDirectiveSectionSwitch("__OBJC,__module_info");
|
||||
return ParseDirectiveSectionSwitch("__OBJC", "__module_info", 0);
|
||||
if (IDVal == ".objc_class_names")
|
||||
return ParseDirectiveSectionSwitch("__TEXT,__cstring","cstring_literals");
|
||||
return ParseDirectiveSectionSwitch("__TEXT", "__cstring",
|
||||
MCSectionMachO::S_CSTRING_LITERALS);
|
||||
if (IDVal == ".objc_meth_var_types")
|
||||
return ParseDirectiveSectionSwitch("__TEXT,__cstring","cstring_literals");
|
||||
return ParseDirectiveSectionSwitch("__TEXT", "__cstring",
|
||||
MCSectionMachO::S_CSTRING_LITERALS);
|
||||
if (IDVal == ".objc_meth_var_names")
|
||||
return ParseDirectiveSectionSwitch("__TEXT,__cstring","cstring_literals");
|
||||
return ParseDirectiveSectionSwitch("__TEXT", "__cstring",
|
||||
MCSectionMachO::S_CSTRING_LITERALS);
|
||||
if (IDVal == ".objc_selector_strs")
|
||||
return ParseDirectiveSectionSwitch("__OBJC,__selector_strs");
|
||||
return ParseDirectiveSectionSwitch("__OBJC", "__selector_strs", 0);
|
||||
|
||||
// Assembler features
|
||||
if (IDVal == ".set")
|
||||
@ -681,53 +690,52 @@ bool AsmParser::ParseDirectiveSet() {
|
||||
bool AsmParser::ParseDirectiveDarwinSection() {
|
||||
StringRef SectionName;
|
||||
|
||||
if (ParseIdentifier(SectionName))
|
||||
if (Lexer.isNot(AsmToken::Identifier))
|
||||
return TokError("expected identifier after '.section' directive");
|
||||
|
||||
std::string Section = SectionName;
|
||||
|
||||
// FIXME: This doesn't work, we lose quoting on things
|
||||
|
||||
// Accept a comma separated list of modifiers.
|
||||
while (Lexer.is(AsmToken::Comma)) {
|
||||
Lexer.Lex(); // Consume the comma.
|
||||
|
||||
StringRef ModifierName;
|
||||
if (ParseIdentifier(ModifierName))
|
||||
return TokError("expected identifier in '.section' directive");
|
||||
Section += ',';
|
||||
Section += ModifierName;
|
||||
}
|
||||
|
||||
std::string SectionSpec = SectionName;
|
||||
StringRef EOL = Lexer.LexUntilEndOfStatement();
|
||||
SectionSpec.append(EOL.begin(), EOL.end());
|
||||
Lexer.Lex();
|
||||
if (Lexer.isNot(AsmToken::EndOfStatement))
|
||||
return TokError("unexpected token in '.section' directive");
|
||||
Lexer.Lex();
|
||||
|
||||
|
||||
StringRef Segment, Section;
|
||||
unsigned TAA, StubSize;
|
||||
std::string ErrorStr =
|
||||
MCSectionMachO::ParseSectionSpecifier(SectionSpec, Segment, Section,
|
||||
TAA, StubSize);
|
||||
|
||||
if (!ErrorStr.empty())
|
||||
return TokError(ErrorStr.c_str());
|
||||
|
||||
// FIXME: CACHE THESE.
|
||||
|
||||
// FIXME: Arch specific.
|
||||
MCSection *S = Ctx.GetSection(Section);
|
||||
MCSection *S = 0; //Ctx.GetSection(Section);
|
||||
if (S == 0)
|
||||
S = MCSectionMachO::Create(Section, false, SectionKind(), Ctx);
|
||||
S = MCSectionMachO::Create(Segment, Section, TAA, StubSize,
|
||||
SectionKind(), Ctx);
|
||||
|
||||
Out.SwitchSection(S);
|
||||
return false;
|
||||
}
|
||||
|
||||
bool AsmParser::ParseDirectiveSectionSwitch(const char *Section,
|
||||
const char *Directives) {
|
||||
bool AsmParser::ParseDirectiveSectionSwitch(const char *Segment,
|
||||
const char *Section,
|
||||
unsigned TAA, unsigned StubSize) {
|
||||
if (Lexer.isNot(AsmToken::EndOfStatement))
|
||||
return TokError("unexpected token in section switching directive");
|
||||
Lexer.Lex();
|
||||
|
||||
std::string SectionStr = Section;
|
||||
if (Directives && Directives[0]) {
|
||||
SectionStr += ",";
|
||||
SectionStr += Directives;
|
||||
}
|
||||
|
||||
// FIXME: Arch specific.
|
||||
MCSection *S = Ctx.GetSection(Section);
|
||||
// FIXME: Cache this!
|
||||
MCSection *S = 0; // Ctx.GetSection(Section);
|
||||
if (S == 0)
|
||||
S = MCSectionMachO::Create(Section, false, SectionKind(), Ctx);
|
||||
S = MCSectionMachO::Create(Segment, Section, TAA, StubSize,
|
||||
SectionKind(), Ctx);
|
||||
|
||||
Out.SwitchSection(S);
|
||||
return false;
|
||||
@ -1090,35 +1098,28 @@ bool AsmParser::ParseDirectiveDarwinZerofill() {
|
||||
|
||||
if (Lexer.isNot(AsmToken::Identifier))
|
||||
return TokError("expected segment name after '.zerofill' directive");
|
||||
std::string Section = Lexer.getTok().getString();
|
||||
StringRef Segment = Lexer.getTok().getString();
|
||||
Lexer.Lex();
|
||||
|
||||
if (Lexer.isNot(AsmToken::Comma))
|
||||
return TokError("unexpected token in directive");
|
||||
Section += ',';
|
||||
Lexer.Lex();
|
||||
|
||||
if (Lexer.isNot(AsmToken::Identifier))
|
||||
return TokError("expected section name after comma in '.zerofill' "
|
||||
"directive");
|
||||
Section += Lexer.getTok().getString().str();
|
||||
StringRef Section = Lexer.getTok().getString();
|
||||
Lexer.Lex();
|
||||
|
||||
// FIXME: we will need to tell GetSection() that this is to be created with or
|
||||
// must have the Mach-O section type of S_ZEROFILL. Something like the code
|
||||
// below could be done but for now it is not as EmitZerofill() does not know
|
||||
// how to deal with a section type in the section name like
|
||||
// ParseDirectiveDarwinSection() allows.
|
||||
// Section += ',';
|
||||
// Section += "zerofill";
|
||||
|
||||
// If this is the end of the line all that was wanted was to create the
|
||||
// the section but with no symbol.
|
||||
if (Lexer.is(AsmToken::EndOfStatement)) {
|
||||
// FIXME: Arch specific.
|
||||
MCSection *S = Ctx.GetSection(Section);
|
||||
// FIXME: CACHE THIS.
|
||||
MCSection *S = 0; //Ctx.GetSection(Section);
|
||||
if (S == 0)
|
||||
S = MCSectionMachO::Create(Section, false, SectionKind(), Ctx);
|
||||
S = MCSectionMachO::Create(Segment, Section,
|
||||
MCSectionMachO::S_ZEROFILL, 0,
|
||||
SectionKind(), Ctx);
|
||||
|
||||
// Create the zerofill section but no symbol
|
||||
Out.EmitZerofill(S);
|
||||
@ -1176,9 +1177,12 @@ bool AsmParser::ParseDirectiveDarwinZerofill() {
|
||||
return Error(IDLoc, "invalid symbol redefinition");
|
||||
|
||||
// FIXME: Arch specific.
|
||||
MCSection *S = Ctx.GetSection(Section);
|
||||
// FIXME: CACHE.
|
||||
MCSection *S = 0; //Ctx.GetSection(Section);
|
||||
if (S == 0)
|
||||
S = MCSectionMachO::Create(Section, false, SectionKind(), Ctx);
|
||||
S = MCSectionMachO::Create(Segment, Section,
|
||||
MCSectionMachO::S_ZEROFILL, 0,
|
||||
SectionKind(), Ctx);
|
||||
|
||||
// Create the zerofill Symbol with Size and Pow2Alignment
|
||||
Out.EmitZerofill(S, Sym, Size, Pow2Alignment);
|
||||
|
@ -99,8 +99,8 @@ private:
|
||||
|
||||
// Directive Parsing.
|
||||
bool ParseDirectiveDarwinSection(); // Darwin specific ".section".
|
||||
bool ParseDirectiveSectionSwitch(const char *Section,
|
||||
const char *Directives = 0);
|
||||
bool ParseDirectiveSectionSwitch(const char *Segment, const char *Section,
|
||||
unsigned TAA, unsigned StubSize = 0);
|
||||
bool ParseDirectiveAscii(bool ZeroTerminated); // ".ascii", ".asciiz"
|
||||
bool ParseDirectiveValue(unsigned Size); // ".byte", ".long", ...
|
||||
bool ParseDirectiveFill(); // ".fill"
|
||||
|
@ -186,11 +186,10 @@ static int AssembleInput(const char *ProgName) {
|
||||
OwningPtr<MCStreamer> Str(createAsmStreamer(Ctx, outs()));
|
||||
|
||||
// FIXME: Target hook & command line option for initial section.
|
||||
Str.get()->SwitchSection(MCSectionMachO::Create("__TEXT,__text,"
|
||||
"regular,pure_instructions",
|
||||
false,
|
||||
SectionKind::getText(),
|
||||
Ctx));
|
||||
Str.get()->SwitchSection(MCSectionMachO::Create("__TEXT","__text",
|
||||
MCSectionMachO::S_ATTR_PURE_INSTRUCTIONS,
|
||||
0, SectionKind::getText(),
|
||||
Ctx));
|
||||
|
||||
AsmParser Parser(SrcMgr, Ctx, *Str.get());
|
||||
OwningPtr<TargetAsmParser> TAP(GetTargetAsmParser(ProgName, Parser));
|
||||
|
Loading…
Reference in New Issue
Block a user