Magic-Mirror/llvm-capstone
1
0
Fork 0
mirror of https://github.com/capstone-engine/llvm-capstone.git synced 2025-03-05 00:48:08 +00:00
Code Issues Actions 1 Packages Projects Releases Wiki Activity

Finish handling of -mmacosx-version-min. If you now do something like:

Browse Source 
clang -mmacosx-version-min=10.4.9 ...

you'll end up with a target triple like "i686-apple-darwin8.9".

llvm-svn: 56871
This commit is contained in:
Chris Lattner 2008-09-30 20:16:56 +00:00
parent 2bd7b24f1a
commit b5c15e8228
1 changed files with 73 additions and 26 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

99
clang/Driver/clang.cpp
View File

@ -39,14 +39,14 @@
#include "clang/Basic/FileManager.h"
#include "clang/Basic/SourceManager.h"
#include "clang/Basic/TargetInfo.h"
#include "llvm/ADT/OwningPtr.h"
#include "llvm/ADT/SmallPtrSet.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/Config/config.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/MemoryBuffer.h"
#include "llvm/System/Signals.h"
#include "llvm/Config/config.h"
#include "llvm/ADT/OwningPtr.h"
#include "llvm/System/Path.h"
#include "llvm/System/Signals.h"
using namespace clang;
//===----------------------------------------------------------------------===//
@ -617,6 +617,73 @@ static llvm::cl::opt<std::string>
MacOSVersionMin("mmacosx-version-min",
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
static void HandleMacOSVersionMin(std::string &Triple) {
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");
exit(1);
}
unsigned DarwinNumIdx = DarwinDashIdx + strlen("-darwin");
// Validate that there is a number after the "-darwin" and nothing else.
bool IsValidDarwinNumber = Triple.size() != DarwinNumIdx;
for (unsigned i = DarwinNumIdx; i != Triple.size(); ++i)
if ((Triple[i] < '0' || Triple[i] > '9') && Triple[i] != '.')
IsValidDarwinNumber = false;
if (!IsValidDarwinNumber) {
fprintf(stderr, "invalid darwin target triple '%s' expected number\n",
Triple.c_str());
exit(1);
}
// Remove the number.
Triple.resize(DarwinNumIdx);
// Validate that MacOSVersionMin is a 'version number', starting with 10.[3-9]
bool MacOSVersionMinIsInvalid = false;
int VersionNum = 0;
if (MacOSVersionMin.size() < 4 ||
MacOSVersionMin.substr(0, 3) != "10." ||
!isdigit(MacOSVersionMin[3])) {
MacOSVersionMinIsInvalid = true;
} else {
const char *Start = MacOSVersionMin.c_str()+3;
char *End = 0;
VersionNum = (int)strtol(Start, &End, 10);
// Turn MacOSVersionMin into a darwin number: e.g. 10.3.9 is 3 -> 7.
Triple += llvm::itostr(VersionNum+4);
if (End[0] == '.') { // 10.4.17 is ok.
// Add the period piece (.17) to the end of the triple. This gives us
// something like ...-darwin8.17
Triple += End;
// Verify that the rest after the number are all digits.
for (++End; isdigit(*End); ++End)
/*skip digits*/;
// If there were any non-digits after the number, reject it.
MacOSVersionMinIsInvalid = *End != '\0';
} else if (End[0] != '\0') { // "10.4" is ok. 10.4x is not.
MacOSVersionMinIsInvalid = true;
}
}
if (MacOSVersionMinIsInvalid) {
fprintf(stderr,
"-mmacosx-version-min=%s is invalid, expected something like '10.4'.\n",
MacOSVersionMin.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() {
// Initialize base triple. If a -triple option has been specified, use
// that triple. Otherwise, default to the host triple.
@ -641,28 +708,8 @@ static std::string CreateTargetTriple() {
// If -mmacosx-version-min=10.3.9 is specified, change the triple from being
// something like powerpc-apple-darwin9 to powerpc-apple-darwin7
if (!MacOSVersionMin.empty()) {
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");
exit(1);
}
DarwinDashIdx += strlen("-darwin");
// Validate that there is a number after the "-darwin" and nothing else.
bool IsValidDarwinNumber = Triple.size() != DarwinDashIdx;
for (unsigned i = 0; i != DarwinDashIdx; ++i)
if (Triple[DarwinDashIdx] < '0' || Triple[DarwinDashIdx] > '9')
IsValidDarwinNumber = false;
if (IsValidDarwinNumber) {
fprintf(stderr, "invalid darwin target triple '%s' expected number\n",
Triple.c_str());
exit(1);
}
// TODO: Turn MacOSVersionMin into darwin number: 10.3.9 -> 7.
}
if (!MacOSVersionMin.empty())
HandleMacOSVersionMin(Triple);
return Triple;
}