[MSP430] Provide a toolchain description
This is an initial implementation for msp430 toolchain including
-mmcu option support
-mhwmult options support
-integrated-as by default
The toolchain uses msp430-elf-as as a linker and supports msp430-gcc toolchain tree.
Patch by Kristina Bessonova!
Differential Revision: https://reviews.llvm.org/D56658
llvm-svn: 351228
diff --git a/clang/lib/Driver/ToolChains/Gnu.cpp b/clang/lib/Driver/ToolChains/Gnu.cpp
index 75a0bfb..e4b3589 100644
--- a/clang/lib/Driver/ToolChains/Gnu.cpp
+++ b/clang/lib/Driver/ToolChains/Gnu.cpp
@@ -878,6 +878,10 @@
return Arch == llvm::Triple::riscv32 || Arch == llvm::Triple::riscv64;
}
+static bool isMSP430(llvm::Triple::ArchType Arch) {
+ return Arch == llvm::Triple::msp430;
+}
+
static Multilib makeMultilib(StringRef commonSuffix) {
return Multilib(commonSuffix, commonSuffix, commonSuffix);
}
@@ -1423,6 +1427,26 @@
Result.Multilibs = AndroidArmMultilibs;
}
+static bool findMSP430Multilibs(const Driver &D,
+ const llvm::Triple &TargetTriple,
+ StringRef Path, const ArgList &Args,
+ DetectedMultilibs &Result) {
+ FilterNonExistent NonExistent(Path, "/crtbegin.o", D.getVFS());
+ Multilib MSP430Multilib = makeMultilib("/430");
+ // FIXME: when clang starts to support msp430x ISA additional logic
+ // to select between multilib must be implemented
+ // Multilib MSP430xMultilib = makeMultilib("/large");
+
+ Result.Multilibs.push_back(MSP430Multilib);
+ Result.Multilibs.FilterOut(NonExistent);
+
+ Multilib::flags_list Flags;
+ if (Result.Multilibs.select(Flags, Result.SelectedMultilib))
+ return true;
+
+ return false;
+}
+
static void findRISCVMultilibs(const Driver &D,
const llvm::Triple &TargetTriple, StringRef Path,
const ArgList &Args, DetectedMultilibs &Result) {
@@ -1911,6 +1935,9 @@
static const char *const MIPSN32ELTriples[] = {
"mips64el-linux-gnuabin32", "mipsisa64r6el-linux-gnuabin32"};
+ static const char *const MSP430LibDirs[] = {"/lib"};
+ static const char *const MSP430Triples[] = {"msp430-elf"};
+
static const char *const PPCLibDirs[] = {"/lib32", "/lib"};
static const char *const PPCTriples[] = {
"powerpc-linux-gnu", "powerpc-unknown-linux-gnu", "powerpc-linux-gnuspe",
@@ -2135,6 +2162,10 @@
BiarchTripleAliases.append(begin(MIPSN32ELTriples), end(MIPSN32ELTriples));
BiarchTripleAliases.append(begin(MIPSTriples), end(MIPSTriples));
break;
+ case llvm::Triple::msp430:
+ LibDirs.append(begin(MSP430LibDirs), end(MSP430LibDirs));
+ TripleAliases.append(begin(MSP430Triples), end(MSP430Triples));
+ break;
case llvm::Triple::ppc:
LibDirs.append(begin(PPCLibDirs), end(PPCLibDirs));
TripleAliases.append(begin(PPCTriples), end(PPCTriples));
@@ -2206,6 +2237,8 @@
return false;
} else if (isRISCV(TargetArch)) {
findRISCVMultilibs(D, TargetTriple, Path, Args, Detected);
+ } else if (isMSP430(TargetArch)) {
+ findMSP430Multilibs(D, TargetTriple, Path, Args, Detected);
} else if (!findBiarchMultilibs(D, TargetTriple, Path, Args,
NeedsBiarchSuffix, Detected)) {
return false;
@@ -2474,6 +2507,7 @@
case llvm::Triple::mipsel:
case llvm::Triple::mips64:
case llvm::Triple::mips64el:
+ case llvm::Triple::msp430:
return true;
case llvm::Triple::sparc:
case llvm::Triple::sparcel: