Support -miphoneos-version-min in clang-cc.
- Patch by Shantonu Sen (with a minor tweak to split out
getDarwin{OSX,IPhoneOS}Defines)!
- <rdar://problem/6776277> Need clang-cc/ccc-analyzer support for
-miphoneos-version-min
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@68815 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/clang-cc/clang-cc.cpp b/tools/clang-cc/clang-cc.cpp
index 8e29dde..0e38bc7 100644
--- a/tools/clang-cc/clang-cc.cpp
+++ b/tools/clang-cc/clang-cc.cpp
@@ -857,7 +857,7 @@
static llvm::cl::opt<std::string>
MacOSVersionMin("mmacosx-version-min",
- llvm::cl::desc("Specify target Mac OS/X version (e.g. 10.5)"));
+ llvm::cl::desc("Specify target Mac OS X version (e.g. 10.5)"));
// If -mmacosx-version-min=10.3.9 is specified, change the triple from being
// something like powerpc-apple-darwin9 to powerpc-apple-darwin7
@@ -867,7 +867,7 @@
std::string::size_type DarwinDashIdx = Triple.find("-darwin");
if (DarwinDashIdx == std::string::npos) {
fprintf(stderr,
- "-mmacosx-version-min only valid for darwin (Mac OS/X) targets\n");
+ "-mmacosx-version-min only valid for darwin (Mac OS X) targets\n");
exit(1);
}
unsigned DarwinNumIdx = DarwinDashIdx + strlen("-darwin");
@@ -910,6 +910,62 @@
}
}
+static llvm::cl::opt<std::string>
+IPhoneOSVersionMin("miphoneos-version-min",
+ llvm::cl::desc("Specify target iPhone OS version (e.g. 2.0)"));
+
+// If -miphoneos-version-min=2.2 is specified, change the triple from being
+// something like armv6-apple-darwin10 to armv6-apple-darwin9.2.2. We use
+// 9 as the default major Darwin number, and encode the iPhone OS version
+// number in the minor version and revision.
+
+// FIXME: We should have the driver do this instead.
+static void HandleIPhoneOSVersionMin(std::string &Triple) {
+ std::string::size_type DarwinDashIdx = Triple.find("-darwin");
+ if (DarwinDashIdx == std::string::npos) {
+ fprintf(stderr,
+ "-miphoneos-version-min only valid for darwin (Mac OS X) targets\n");
+ exit(1);
+ }
+ unsigned DarwinNumIdx = DarwinDashIdx + strlen("-darwin");
+
+ // Remove the number.
+ Triple.resize(DarwinNumIdx);
+
+ // Validate that IPhoneOSVersionMin is a 'version number', starting with [2-9].[0-9]
+ bool IPhoneOSVersionMinIsInvalid = false;
+ int VersionNum = 0;
+ if (IPhoneOSVersionMin.size() < 3 ||
+ !isdigit(IPhoneOSVersionMin[0])) {
+ IPhoneOSVersionMinIsInvalid = true;
+ } else {
+ const char *Start = IPhoneOSVersionMin.c_str();
+ char *End = 0;
+ VersionNum = (int)strtol(Start, &End, 10);
+
+ // The version number must be in the range 0-9.
+ IPhoneOSVersionMinIsInvalid = (unsigned)VersionNum > 9;
+
+ // Turn IPhoneOSVersionMin into a darwin number: e.g. 2.0 is 2 -> 9.2.
+ Triple += "9." + llvm::itostr(VersionNum);
+
+ if (End[0] == '.' && isdigit(End[1]) && End[2] == '\0') { // 2.2 is ok.
+ // Add the period piece (.2) to the end of the triple. This gives us
+ // something like ...-darwin9.2.2
+ Triple += End;
+ } else if (End[0] != '\0') { // "2.2" is ok. 2x is not.
+ IPhoneOSVersionMinIsInvalid = true;
+ }
+ }
+
+ if (IPhoneOSVersionMinIsInvalid) {
+ fprintf(stderr,
+ "-miphoneos-version-min=%s is invalid, expected something like '2.0'.\n",
+ IPhoneOSVersionMin.c_str());
+ exit(1);
+ }
+}
+
/// CreateTargetTriple - Process the various options that affect the target
/// triple and build a final aggregate triple that we are compiling for.
static std::string CreateTargetTriple() {
@@ -947,6 +1003,8 @@
// something like powerpc-apple-darwin9 to powerpc-apple-darwin7
if (!MacOSVersionMin.empty())
HandleMacOSVersionMin(Triple);
+ else if (!IPhoneOSVersionMin.empty())
+ HandleIPhoneOSVersionMin(Triple);;
return Triple;
}