Add LC_BUILD_VERSION load command
Summary:
Add a new load command LC_BUILD_VERSION. It is a generic version of
LC_*_VERSION_MIN load_command used on Apple platforms. Instead of having
a seperate load command for each platform, LC_BUILD_VERSION is recording
platform info as an enum. It also records SDK version, min_os, and tools
that used to build the binary.
rdar://problem/29781291
Reviewers: enderby
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D29044
llvm-svn: 292824
diff --git a/llvm/tools/llvm-readobj/MachODumper.cpp b/llvm/tools/llvm-readobj/MachODumper.cpp
index 01b0741..39e9092 100644
--- a/llvm/tools/llvm-readobj/MachODumper.cpp
+++ b/llvm/tools/llvm-readobj/MachODumper.cpp
@@ -713,12 +713,30 @@
case MachO::LC_VERSION_MIN_WATCHOS:
Cmd = "LC_VERSION_MIN_WATCHOS";
break;
+ case MachO::LC_BUILD_VERSION:
+ Cmd = "LC_BUILD_VERSION";
+ break;
default:
continue;
}
- MachO::version_min_command VMC = Obj->getVersionMinLoadCommand(Load);
DictScope Group(W, "MinVersion");
+ // Handle LC_BUILD_VERSION.
+ if (Load.C.cmd == MachO::LC_BUILD_VERSION) {
+ MachO::build_version_command BVC = Obj->getBuildVersionLoadCommand(Load);
+ W.printString("Cmd", Cmd);
+ W.printNumber("Size", BVC.cmdsize);
+ W.printString("Platform",
+ MachOObjectFile::getBuildPlatform(BVC.platform));
+ W.printString("Version", MachOObjectFile::getVersionString(BVC.minos));
+ if (BVC.sdk)
+ W.printString("SDK", MachOObjectFile::getVersionString(BVC.sdk));
+ else
+ W.printString("SDK", StringRef("n/a"));
+ continue;
+ }
+
+ MachO::version_min_command VMC = Obj->getVersionMinLoadCommand(Load);
W.printString("Cmd", Cmd);
W.printNumber("Size", VMC.cmdsize);
SmallString<32> Version;