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Object/COFF: Add function to check if section number is reserved one.

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Differential Revision: http://llvm-reviews.chandlerc.com/D3103

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204199 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Rui Ueyama
2014-03-18 23:37:53 +00:00
parent 2c4507e850
commit cae25dcbf7
7 changed files with 34 additions and 11 deletions
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11
lib/Object/COFFObjectFile.cpp
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@ -16,6 +16,7 @@
#include "llvm/ADT/SmallString.h"
#include "llvm/ADT/StringSwitch.h"
#include "llvm/ADT/Triple.h"
#include "llvm/Support/COFF.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/raw_ostream.h"
#include <cctype>
@ -177,7 +178,7 @@ error_code COFFObjectFile::getSymbolType(DataRefImpl Ref,
Result = SymbolRef::ST_Function;
} else {
uint32_t Characteristics = 0;
if (Symb->SectionNumber > 0) {
if (!COFF::isReservedSectionNumber(Symb->SectionNumber)) {
const coff_section *Section = NULL;
if (error_code EC = getSection(Symb->SectionNumber, Section))
return EC;
@ -239,9 +240,9 @@ error_code COFFObjectFile::getSymbolSize(DataRefImpl Ref,
error_code COFFObjectFile::getSymbolSection(DataRefImpl Ref,
section_iterator &Result) const {
const coff_symbol *Symb = toSymb(Ref);
if (Symb->SectionNumber <= COFF::IMAGE_SYM_UNDEFINED)
if (COFF::isReservedSectionNumber(Symb->SectionNumber)) {
Result = section_end();
else {
} else {
const coff_section *Sec = 0;
if (error_code EC = getSection(Symb->SectionNumber, Sec)) return EC;
DataRefImpl Ref;
@ -721,9 +722,7 @@ error_code COFFObjectFile::getDataDirectory(uint32_t Index,
error_code COFFObjectFile::getSection(int32_t Index,
const coff_section *&Result) const {
// Check for special index values.
if (Index == COFF::IMAGE_SYM_UNDEFINED ||
Index == COFF::IMAGE_SYM_ABSOLUTE ||
Index == COFF::IMAGE_SYM_DEBUG)
if (COFF::isReservedSectionNumber(Index))
Result = NULL;
else if (Index > 0 && Index <= COFFHeader->NumberOfSections)
// We already verified the section table data, so no need to check again.