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authorChris Lattner <sabre@nondot.org>2009-08-10 18:15:01 +0000
committerChris Lattner <sabre@nondot.org>2009-08-10 18:15:01 +0000
commitf9bdeddb96043559c61f176f8077e3b91a0c544f (patch)
tree37c511c915a69084033918fe912c891c8c1c919f /include/llvm/MC/MCSection.h
parente15c2d7ce575a6212369b9b1477694b998b40a88 (diff)
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split MachO section handling stuff out to its out .h/.cpp file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78576 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'include/llvm/MC/MCSection.h')
-rw-r--r--include/llvm/MC/MCSection.h153
1 files changed, 0 insertions, 153 deletions
diff --git a/include/llvm/MC/MCSection.h b/include/llvm/MC/MCSection.h
index 8216b6894a..aa40386bfd 100644
--- a/include/llvm/MC/MCSection.h
+++ b/include/llvm/MC/MCSection.h
@@ -67,159 +67,6 @@ namespace llvm {
raw_ostream &OS) const;
};
-
- /// MCSectionMachO - This represents a section on a Mach-O system (used by
- /// Mac OS X). On a Mac system, these are also described in
- /// /usr/include/mach-o/loader.h.
- class MCSectionMachO : public MCSection {
- char SegmentName[16]; // Not necessarily null terminated!
- char SectionName[16]; // Not necessarily null terminated!
-
- /// TypeAndAttributes - This is the SECTION_TYPE and SECTION_ATTRIBUTES
- /// field of a section, drawn from the enums below.
- unsigned TypeAndAttributes;
-
- /// Reserved2 - The 'reserved2' field of a section, used to represent the
- /// size of stubs, for example.
- unsigned Reserved2;
-
- MCSectionMachO(const StringRef &Segment, const StringRef &Section,
- unsigned TAA, unsigned reserved2, SectionKind K)
- : MCSection(K), TypeAndAttributes(TAA), Reserved2(reserved2) {
- assert(Segment.size() <= 16 && Section.size() <= 16 &&
- "Segment or section string too long");
- for (unsigned i = 0; i != 16; ++i) {
- if (i < Segment.size())
- SegmentName[i] = Segment[i];
- else
- SegmentName[i] = 0;
-
- if (i < Section.size())
- SectionName[i] = Section[i];
- else
- SectionName[i] = 0;
- }
- }
- public:
-
- static MCSectionMachO *Create(const StringRef &Segment,
- const StringRef &Section,
- unsigned TypeAndAttributes,
- unsigned Reserved2,
- SectionKind K, MCContext &Ctx);
-
- /// These are the section type and attributes fields. A MachO section can
- /// have only one Type, but can have any of the attributes specified.
- enum {
- // TypeAndAttributes bitmasks.
- SECTION_TYPE = 0x000000FFU,
- SECTION_ATTRIBUTES = 0xFFFFFF00U,
-
- // Valid section types.
-
- /// S_REGULAR - Regular section.
- S_REGULAR = 0x00U,
- /// S_ZEROFILL - Zero fill on demand section.
- S_ZEROFILL = 0x01U,
- /// S_CSTRING_LITERALS - Section with literal C strings.
- S_CSTRING_LITERALS = 0x02U,
- /// S_4BYTE_LITERALS - Section with 4 byte literals.
- S_4BYTE_LITERALS = 0x03U,
- /// S_8BYTE_LITERALS - Section with 8 byte literals.
- S_8BYTE_LITERALS = 0x04U,
- /// S_LITERAL_POINTERS - Section with pointers to literals.
- S_LITERAL_POINTERS = 0x05U,
- /// S_NON_LAZY_SYMBOL_POINTERS - Section with non-lazy symbol pointers.
- S_NON_LAZY_SYMBOL_POINTERS = 0x06U,
- /// S_LAZY_SYMBOL_POINTERS - Section with lazy symbol pointers.
- S_LAZY_SYMBOL_POINTERS = 0x07U,
- /// S_SYMBOL_STUBS - Section with symbol stubs, byte size of stub in
- /// the Reserved2 field.
- S_SYMBOL_STUBS = 0x08U,
- /// S_SYMBOL_STUBS - Section with only function pointers for
- /// initialization.
- S_MOD_INIT_FUNC_POINTERS = 0x09U,
- /// S_MOD_INIT_FUNC_POINTERS - Section with only function pointers for
- /// termination.
- S_MOD_TERM_FUNC_POINTERS = 0x0AU,
- /// S_COALESCED - Section contains symbols that are to be coalesced.
- S_COALESCED = 0x0BU,
- /// S_GB_ZEROFILL - Zero fill on demand section (that can be larger than 4
- /// gigabytes).
- S_GB_ZEROFILL = 0x0CU,
- /// S_INTERPOSING - Section with only pairs of function pointers for
- /// interposing.
- S_INTERPOSING = 0x0DU,
- /// S_16BYTE_LITERALS - Section with only 16 byte literals.
- S_16BYTE_LITERALS = 0x0EU,
- /// S_DTRACE_DOF - Section contains DTrace Object Format.
- S_DTRACE_DOF = 0x0FU,
- /// S_LAZY_DYLIB_SYMBOL_POINTERS - Section with lazy symbol pointers to
- /// lazy loaded dylibs.
- S_LAZY_DYLIB_SYMBOL_POINTERS = 0x10U,
-
- LAST_KNOWN_SECTION_TYPE = S_LAZY_DYLIB_SYMBOL_POINTERS,
-
-
- // Valid section attributes.
-
- /// S_ATTR_PURE_INSTRUCTIONS - Section contains only true machine
- /// instructions.
- S_ATTR_PURE_INSTRUCTIONS = 1U << 31,
- /// S_ATTR_NO_TOC - Section contains coalesced symbols that are not to be
- /// in a ranlib table of contents.
- S_ATTR_NO_TOC = 1U << 30,
- /// S_ATTR_STRIP_STATIC_SYMS - Ok to strip static symbols in this section
- /// in files with the MY_DYLDLINK flag.
- S_ATTR_STRIP_STATIC_SYMS = 1U << 29,
- /// S_ATTR_NO_DEAD_STRIP - No dead stripping.
- S_ATTR_NO_DEAD_STRIP = 1U << 28,
- /// S_ATTR_LIVE_SUPPORT - Blocks are live if they reference live blocks.
- S_ATTR_LIVE_SUPPORT = 1U << 27,
- /// S_ATTR_SELF_MODIFYING_CODE - Used with i386 code stubs written on by
- /// dyld.
- S_ATTR_SELF_MODIFYING_CODE = 1U << 26,
- /// S_ATTR_DEBUG - A debug section.
- S_ATTR_DEBUG = 1U << 25,
- /// S_ATTR_SOME_INSTRUCTIONS - Section contains some machine instructions.
- S_ATTR_SOME_INSTRUCTIONS = 1U << 10,
- /// S_ATTR_EXT_RELOC - Section has external relocation entries.
- S_ATTR_EXT_RELOC = 1U << 9,
- /// S_ATTR_LOC_RELOC - Section has local relocation entries.
- S_ATTR_LOC_RELOC = 1U << 8
- };
-
- StringRef getSegmentName() const {
- // SegmentName is not necessarily null terminated!
- if (SegmentName[15])
- return StringRef(SegmentName, 16);
- return StringRef(SegmentName);
- }
- StringRef getSectionName() const {
- // SectionName is not necessarily null terminated!
- if (SectionName[15])
- return StringRef(SectionName, 16);
- return StringRef(SectionName);
- }
-
- unsigned getTypeAndAttributes() const { return TypeAndAttributes; }
-
-
- /// ParseSectionSpecifier - Parse the section specifier indicated by "Spec".
- /// This is a string that can appear after a .section directive in a mach-o
- /// flavored .s file. If successful, this fills in the specified Out
- /// parameters and returns an empty string. When an invalid section
- /// specifier is present, this returns a string indicating the problem.
- static std::string ParseSectionSpecifier(StringRef Spec, // In.
- StringRef &Segment, // Out.
- StringRef &Section, // Out.
- unsigned &TAA, // Out.
- unsigned &StubSize); // Out.
-
- virtual void PrintSwitchToSection(const TargetAsmInfo &TAI,
- raw_ostream &OS) const;
- };
-
class MCSectionCOFF : public MCSection {
std::string Name;