Driver: Parse Darwin version out of target triple.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@67388 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Driver/HostInfo.cpp b/lib/Driver/HostInfo.cpp
index 5f2460f..39a688a 100644
--- a/lib/Driver/HostInfo.cpp
+++ b/lib/Driver/HostInfo.cpp
@@ -11,6 +11,8 @@
#include "clang/Driver/Arg.h"
#include "clang/Driver/ArgList.h"
+#include "clang/Driver/Driver.h"
+#include "clang/Driver/DriverDiagnostic.h"
#include "clang/Driver/Option.h"
#include "clang/Driver/Options.h"
@@ -59,6 +61,37 @@
const char *ArchName) const;
};
+/// GetReleaseVersion - Parse (([0-9]+)(.([0-9]+)(.([0-9]+)?))?)? and
+/// return the grouped values as integers. Numbers which are not
+/// provided are set to 0.
+///
+/// \return True if the entire string was parsed (9.2), or all groups
+/// were parsed (10.3.5extrastuff).
+static bool GetReleaseVersion(const char *Str, unsigned &Major,
+ unsigned &Minor, unsigned &Micro) {
+ Major = Minor = Micro = 0;
+ if (*Str == '\0')
+ return true;
+
+ char *End;
+ Major = (unsigned) strtol(Str, &End, 10);
+ if (*Str != '\0' && *End == '\0')
+ return true;
+ if (*End != '.')
+ return false;
+
+ Str = End+1;
+ Minor = (unsigned) strtol(Str, &End, 10);
+ if (*Str != '\0' && *End == '\0')
+ return true;
+ if (*End != '.')
+ return false;
+
+ Str = End+1;
+ Micro = (unsigned) strtol(Str, &End, 10);
+ return true;
+}
+
DarwinHostInfo::DarwinHostInfo(const Driver &D, const char *_Arch,
const char *_Platform, const char *_OS)
: HostInfo(D, _Arch, _Platform, _OS) {
@@ -67,7 +100,14 @@
getArchName() == "ppc" || getArchName() == "ppc64") &&
"Unknown Darwin arch.");
- // FIXME: How to deal with errors?
+ assert(memcmp(&getOSName()[0], "darwin", 6) == 0 &&
+ "Unknown Darwin platform.");
+ const char *Release = &getOSName()[6];
+ if (!GetReleaseVersion(Release, DarwinVersion[0], DarwinVersion[1],
+ DarwinVersion[2])) {
+ D.Diag(clang::diag::err_drv_invalid_darwin_version)
+ << Release;
+ }
// We can only call 4.2.1 for now.
GCCVersion[0] = 4;