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add support for target-specific ELF section flags, add a new MCSectionXCore

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class which represents the XCore cp/dp section flags.  No functionality
change yet.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79077 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2009-08-15 05:56:11 +00:00
parent bd51c67739
commit 7d996d907f
4 changed files with 124 additions and 11 deletions
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36
include/llvm/MC/MCSectionELF.h
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@@ -34,9 +34,10 @@ class MCSectionELF : public MCSection {
/// explicit section specfied.
bool IsExplicit;
MCSectionELF(const StringRef &Section, unsigned T, unsigned F,
protected:
MCSectionELF(const StringRef &Section, unsigned type, unsigned flags,
SectionKind K, bool isExplicit)
: MCSection(K), SectionName(Section.str()), Type(T), Flags(F),
: MCSection(K), SectionName(Section.str()), Type(type), Flags(flags),
IsExplicit(isExplicit) {}
public:
@@ -93,16 +94,16 @@ public:
SHT_REL = 0x09U,
// This section type is reserved but has unspecified semantics.
SHT_SHLIB = 0x0aU,
SHT_SHLIB = 0x0AU,
// This section holds a symbol table.
SHT_DYNSYM = 0x0bU,
SHT_DYNSYM = 0x0BU,
// This section contains an array of pointers to initialization functions.
SHT_INIT_ARRAY = 0x0eU,
SHT_INIT_ARRAY = 0x0EU,
// This section contains an array of pointers to termination functions.
SHT_FINI_ARRAY = 0x0fU,
SHT_FINI_ARRAY = 0x0FU,
// This section contains an array of pointers to functions that are invoked
// before all other initialization functions.
@@ -150,7 +151,17 @@ public:
SHF_GROUP = 0x200U,
// This section holds Thread-Local Storage.
SHF_TLS = 0x400U
SHF_TLS = 0x400U,
/// FIRST_TARGET_DEP_FLAG - This is the first flag that subclasses are
/// allowed to specify.
FIRST_TARGET_DEP_FLAG = 0x800U,
/// TARGET_INDEP_SHF - This is the bitmask for all the target independent
/// section flags. Targets can define their own target flags above these.
/// If they do that, they should implement their own MCSectionELF subclasses
/// and implement the virtual method hooks below to handle printing needs.
TARGET_INDEP_SHF = FIRST_TARGET_DEP_FLAG-1U
};
StringRef getSectionName() const {
@@ -162,6 +173,17 @@ public:
virtual void PrintSwitchToSection(const TargetAsmInfo &TAI,
raw_ostream &OS) const;
/// PrintTargetSpecificSectionFlags - Targets that define their own
/// MCSectionELF subclasses with target specific section flags should
/// implement this method if they end up adding letters to the attributes
/// list.
virtual void PrintTargetSpecificSectionFlags(const TargetAsmInfo &TAI,
raw_ostream &OS) const {
}
};
} // end namespace llvm