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[Object/COFF]: Expose getSectionName.

Browse Source 
Also add some documentation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153050 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Michael J. Spencer 2012-03-19 20:27:15 +00:00
parent 2d7ea04e28
commit b35a896e07
3 changed files with 32 additions and 19 deletions
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7
include/llvm/Object/Binary.h
View File

@ -88,7 +88,14 @@ public:
}
};
/// @brief Create a Binary from Source, autodetecting the file type.
///
/// @param Source The data to create the Binary from. Ownership is transfered
/// to Result if successful. If an error is returned, Source is destroyed
/// by createBinary before returning.
/// @param Result A pointer to the resulting Binary if no error occured.
error_code createBinary(MemoryBuffer *Source, OwningPtr<Binary> &Result);
error_code createBinary(StringRef Path, OwningPtr<Binary> &Result);
}

1
include/llvm/Object/COFF.h
View File

@ -177,6 +177,7 @@ public:
return ec;
}
error_code getSymbolName(const coff_symbol *symbol, StringRef &Res) const;
error_code getSectionName(const coff_section *Sec, StringRef &Res) const;
static inline bool classof(const Binary *v) {
return v->isCOFF();

43
lib/Object/COFFObjectFile.cpp
View File

@ -300,25 +300,7 @@ error_code COFFObjectFile::getSectionNext(DataRefImpl Sec,
error_code COFFObjectFile::getSectionName(DataRefImpl Sec,
StringRef &Result) const {
const coff_section *sec = toSec(Sec);
StringRef name;
if (sec->Name[7] == 0)
// Null terminated, let ::strlen figure out the length.
name = sec->Name;
else
// Not null terminated, use all 8 bytes.
name = StringRef(sec->Name, 8);
// Check for string table entry. First byte is '/'.
if (name[0] == '/') {
uint32_t Offset;
if (name.substr(1).getAsInteger(10, Offset))
return object_error::parse_failed;
if (error_code ec = getString(Offset, name))
return ec;
}
Result = name;
return object_error::success;
return getSectionName(sec, Result);
}
error_code COFFObjectFile::getSectionAddress(DataRefImpl Sec,
@ -631,6 +613,29 @@ error_code COFFObjectFile::getSymbolName(const coff_symbol *symbol,
return object_error::success;
}
error_code COFFObjectFile::getSectionName(const coff_section *Sec,
StringRef &Res) const {
StringRef Name;
if (Sec->Name[7] == 0)
// Null terminated, let ::strlen figure out the length.
Name = Sec->Name;
else
// Not null terminated, use all 8 bytes.
Name = StringRef(Sec->Name, 8);
// Check for string table entry. First byte is '/'.
if (Name[0] == '/') {
uint32_t Offset;
if (Name.substr(1).getAsInteger(10, Offset))
return object_error::parse_failed;
if (error_code ec = getString(Offset, Name))
return ec;
}
Res = Name;
return object_error::success;
}
const coff_relocation *COFFObjectFile::toRel(DataRefImpl Rel) const {
return reinterpret_cast<const coff_relocation*>(Rel.p);
}