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Object: Add isSection{Data,BSS}.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140721 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Michael J. Spencer 2011-09-28 20:57:30 +00:00
parent f56dc281ce
commit 13afc5eff2
5 changed files with 72 additions and 0 deletions
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2
include/llvm/Object/COFF.h
View File

@ -106,6 +106,8 @@ protected:
virtual error_code getSectionSize(DataRefImpl Sec, uint64_t &Res) const;
virtual error_code getSectionContents(DataRefImpl Sec, StringRef &Res) const;
virtual error_code isSectionText(DataRefImpl Sec, bool &Res) const;
virtual error_code isSectionData(DataRefImpl Sec, bool &Res) const;
virtual error_code isSectionBSS(DataRefImpl Sec, bool &Res) const;
virtual error_code sectionContainsSymbol(DataRefImpl Sec, DataRefImpl Symb,
bool &Result) const;

12
include/llvm/Object/ObjectFile.h
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@ -131,6 +131,8 @@ public:
// FIXME: Move to the normalization layer when it's created.
error_code isText(bool &Result) const;
error_code isData(bool &Result) const;
error_code isBSS(bool &Result) const;
error_code containsSymbol(SymbolRef S, bool &Result) const;
};
@ -179,6 +181,8 @@ protected:
virtual error_code getSectionSize(DataRefImpl Sec, uint64_t &Res) const = 0;
virtual error_code getSectionContents(DataRefImpl Sec, StringRef &Res)const=0;
virtual error_code isSectionText(DataRefImpl Sec, bool &Res) const = 0;
virtual error_code isSectionData(DataRefImpl Sec, bool &Res) const = 0;
virtual error_code isSectionBSS(DataRefImpl Sec, bool &Res) const = 0;
virtual error_code sectionContainsSymbol(DataRefImpl Sec, DataRefImpl Symb,
bool &Result) const = 0;
@ -349,6 +353,14 @@ inline error_code SectionRef::isText(bool &Result) const {
return OwningObject->isSectionText(SectionPimpl, Result);
}
inline error_code SectionRef::isData(bool &Result) const {
return OwningObject->isSectionData(SectionPimpl, Result);
}
inline error_code SectionRef::isBSS(bool &Result) const {
return OwningObject->isSectionBSS(SectionPimpl, Result);
}
inline error_code SectionRef::containsSymbol(SymbolRef S, bool &Result) const {
return OwningObject->sectionContainsSymbol(SectionPimpl, S.SymbolPimpl,
Result);

14
lib/Object/COFFObjectFile.cpp
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@ -342,6 +342,20 @@ error_code COFFObjectFile::isSectionText(DataRefImpl Sec,
return object_error::success;
}
error_code COFFObjectFile::isSectionData(DataRefImpl Sec,
bool &Result) const {
const coff_section *sec = toSec(Sec);
Result = sec->Characteristics & COFF::IMAGE_SCN_CNT_INITIALIZED_DATA;
return object_error::success;
}
error_code COFFObjectFile::isSectionBSS(DataRefImpl Sec,
bool &Result) const {
const coff_section *sec = toSec(Sec);
Result = sec->Characteristics & COFF::IMAGE_SCN_CNT_UNINITIALIZED_DATA;
return object_error::success;
}
error_code COFFObjectFile::sectionContainsSymbol(DataRefImpl Sec,
DataRefImpl Symb,
bool &Result) const {

28
lib/Object/ELFObjectFile.cpp
View File

@ -324,6 +324,8 @@ protected:
virtual error_code getSectionSize(DataRefImpl Sec, uint64_t &Res) const;
virtual error_code getSectionContents(DataRefImpl Sec, StringRef &Res) const;
virtual error_code isSectionText(DataRefImpl Sec, bool &Res) const;
virtual error_code isSectionData(DataRefImpl Sec, bool &Res) const;
virtual error_code isSectionBSS(DataRefImpl Sec, bool &Res) const;
virtual error_code sectionContainsSymbol(DataRefImpl Sec, DataRefImpl Symb,
bool &Result) const;
@ -674,6 +676,32 @@ error_code ELFObjectFile<target_endianness, is64Bits>
return object_error::success;
}
template<support::endianness target_endianness, bool is64Bits>
error_code ELFObjectFile<target_endianness, is64Bits>
::isSectionData(DataRefImpl Sec,
bool &Result) const {
const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
if (sec->sh_flags & (ELF::SHF_ALLOC | ELF::SHF_WRITE)
&& sec->sh_type == ELF::SHT_PROGBITS)
Result = true;
else
Result = false;
return object_error::success;
}
template<support::endianness target_endianness, bool is64Bits>
error_code ELFObjectFile<target_endianness, is64Bits>
::isSectionBSS(DataRefImpl Sec,
bool &Result) const {
const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
if (sec->sh_flags & (ELF::SHF_ALLOC | ELF::SHF_WRITE)
&& sec->sh_type == ELF::SHT_NOBITS)
Result = true;
else
Result = false;
return object_error::success;
}
template<support::endianness target_endianness, bool is64Bits>
error_code ELFObjectFile<target_endianness, is64Bits>
::sectionContainsSymbol(DataRefImpl Sec,

16
lib/Object/MachOObjectFile.cpp
View File

@ -63,6 +63,8 @@ protected:
virtual error_code getSectionSize(DataRefImpl Sec, uint64_t &Res) const;
virtual error_code getSectionContents(DataRefImpl Sec, StringRef &Res) const;
virtual error_code isSectionText(DataRefImpl Sec, bool &Res) const;
virtual error_code isSectionData(DataRefImpl Sec, bool &Res) const;
virtual error_code isSectionBSS(DataRefImpl Sec, bool &Res) const;
virtual error_code sectionContainsSymbol(DataRefImpl DRI, DataRefImpl S,
bool &Result) const;
@ -480,6 +482,20 @@ error_code MachOObjectFile::isSectionText(DataRefImpl DRI,
return object_error::success;
}
error_code MachOObjectFile::isSectionData(DataRefImpl DRI,
bool &Result) const {
// FIXME: Unimplemented.
Result = false;
return object_error::success;
}
error_code MachOObjectFile::isSectionBSS(DataRefImpl DRI,
bool &Result) const {
// FIXME: Unimplemented.
Result = false;
return object_error::success;
}
error_code MachOObjectFile::sectionContainsSymbol(DataRefImpl Sec,
DataRefImpl Symb,
bool &Result) const {