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Fix an unconditional break in checkMachOAndArchFlags 

Found by PVS-Studio.

llvm-svn: 285598
This commit is contained in:
David Majnemer 2016-10-31 17:11:31 +00:00
parent f5c0689e92
commit 91160d851e
3 changed files with 44 additions and 52 deletions
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4
llvm/tools/llvm-nm/llvm-nm.cpp
View File

@ -1051,9 +1051,9 @@ dumpSymbolNamesFromObject(SymbolicFile &Obj, bool printName,
// architectures was specificed. If not then an error is generated and this
// routine returns false. Else it returns true.
static bool checkMachOAndArchFlags(SymbolicFile *O, std::string &Filename) {
MachOObjectFile *MachO = dyn_cast<MachOObjectFile>(O);
auto *MachO = dyn_cast<MachOObjectFile>(O);
if (!MachO || ArchAll || ArchFlags.size() == 0)
if (!MachO || ArchAll || ArchFlags.empty())
return true;
MachO::mach_header H;

44
llvm/tools/llvm-objdump/MachODump.cpp
View File

@ -1186,30 +1186,26 @@ static void DumpInfoPlistSectionContents(StringRef Filename,
// architectures were specified. If not then an error is generated and this
// routine returns false. Else it returns true.
static bool checkMachOAndArchFlags(ObjectFile *O, StringRef Filename) {
if (isa<MachOObjectFile>(O) && !ArchAll && ArchFlags.size() != 0) {
MachOObjectFile *MachO = dyn_cast<MachOObjectFile>(O);
bool ArchFound = false;
MachO::mach_header H;
MachO::mach_header_64 H_64;
Triple T;
if (MachO->is64Bit()) {
H_64 = MachO->MachOObjectFile::getHeader64();
T = MachOObjectFile::getArchTriple(H_64.cputype, H_64.cpusubtype);
} else {
H = MachO->MachOObjectFile::getHeader();
T = MachOObjectFile::getArchTriple(H.cputype, H.cpusubtype);
}
unsigned i;
for (i = 0; i < ArchFlags.size(); ++i) {
if (ArchFlags[i] == T.getArchName())
ArchFound = true;
break;
}
if (!ArchFound) {
errs() << "llvm-objdump: file: " + Filename + " does not contain "
<< "architecture: " + ArchFlags[i] + "\n";
return false;
}
auto *MachO = dyn_cast<MachOObjectFile>(O);
if (!MachO || ArchAll || ArchFlags.empty())
return true;
MachO::mach_header H;
MachO::mach_header_64 H_64;
Triple T;
if (MachO->is64Bit()) {
H_64 = MachO->MachOObjectFile::getHeader64();
T = MachOObjectFile::getArchTriple(H_64.cputype, H_64.cpusubtype);
} else {
H = MachO->MachOObjectFile::getHeader();
T = MachOObjectFile::getArchTriple(H.cputype, H.cpusubtype);
}
if (none_of(ArchFlags, [&](const std::string &Name) {
return Name == T.getArchName();
})) {
errs() << "llvm-objdump: " + Filename + ": No architecture specified.\n";
return false;
}
return true;
}

48
llvm/tools/llvm-size/llvm-size.cpp
View File

@ -498,36 +498,32 @@ static void printObjectSectionSizes(ObjectFile *Obj) {
}
}
/// Checks to see if the @p o ObjectFile is a Mach-O file and if it is and there
/// Checks to see if the @p O ObjectFile is a Mach-O file and if it is and there
/// is a list of architecture flags specified then check to make sure this
/// Mach-O file is one of those architectures or all architectures was
/// specificed. If not then an error is generated and this routine returns
/// false. Else it returns true.
static bool checkMachOAndArchFlags(ObjectFile *o, StringRef file) {
if (isa<MachOObjectFile>(o) && !ArchAll && ArchFlags.size() != 0) {
MachOObjectFile *MachO = dyn_cast<MachOObjectFile>(o);
bool ArchFound = false;
MachO::mach_header H;
MachO::mach_header_64 H_64;
Triple T;
if (MachO->is64Bit()) {
H_64 = MachO->MachOObjectFile::getHeader64();
T = MachOObjectFile::getArchTriple(H_64.cputype, H_64.cpusubtype);
} else {
H = MachO->MachOObjectFile::getHeader();
T = MachOObjectFile::getArchTriple(H.cputype, H.cpusubtype);
}
unsigned i;
for (i = 0; i < ArchFlags.size(); ++i) {
if (ArchFlags[i] == T.getArchName())
ArchFound = true;
break;
}
if (!ArchFound) {
errs() << ToolName << ": file: " << file
<< " does not contain architecture: " << ArchFlags[i] << ".\n";
return false;
}
static bool checkMachOAndArchFlags(ObjectFile *O, StringRef Filename) {
auto *MachO = dyn_cast<MachOObjectFile>(O);
if (!MachO || ArchAll || ArchFlags.empty())
return true;
MachO::mach_header H;
MachO::mach_header_64 H_64;
Triple T;
if (MachO->is64Bit()) {
H_64 = MachO->MachOObjectFile::getHeader64();
T = MachOObjectFile::getArchTriple(H_64.cputype, H_64.cpusubtype);
} else {
H = MachO->MachOObjectFile::getHeader();
T = MachOObjectFile::getArchTriple(H.cputype, H.cpusubtype);
}
if (none_of(ArchFlags, [&](const std::string &Name) {
return Name == T.getArchName();
})) {
error(Filename + ": No architecture specified");
return false;
}
return true;
}