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Don't read one command past the end.

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Thanks to Evgeniy Stepanov for reporting this.

It might be a good idea to add a command iterator abstraction to MachO.h, but
this fixes the bug for now.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179848 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Rafael Espindola
2013-04-19 11:36:47 +00:00
parent 4521019c6f
commit db5f927020
4 changed files with 16 additions and 4 deletions
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8
tools/llvm-objdump/MachODump.cpp
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@ -205,7 +205,7 @@ getSectionsAndSymbols(const macho::Header Header,
MachOObjectFile::LoadCommandInfo Command =
MachOObj->getFirstLoadCommandInfo();
for (unsigned i = 0; i != Header.NumLoadCommands; ++i) {
for (unsigned i = 0; ; ++i) {
if (Command.C.Type == macho::LCT_FunctionStarts) {
// We found a function starts segment, parse the addresses for later
// consumption.
@ -214,7 +214,11 @@ getSectionsAndSymbols(const macho::Header Header,
MachOObj->ReadULEB128s(LLC.DataOffset, FoundFns);
}
Command = MachOObj->getNextLoadCommandInfo(Command);
if (i == Header.NumLoadCommands - 1)
break;
else
Command = MachOObj->getNextLoadCommandInfo(Command);
}
}