Compilation for Intel MCU (Part 1/3)
Add -miamcu option which:
* Sets IAMCU triple
* Sets IAMCU ABI
* Enforces static compilation
Differential Revision: http://reviews.llvm.org/D18398
llvm-svn: 266972
diff --git a/clang/lib/Driver/Driver.cpp b/clang/lib/Driver/Driver.cpp
index 74121ec..c7a65fe 100644
--- a/clang/lib/Driver/Driver.cpp
+++ b/clang/lib/Driver/Driver.cpp
@@ -278,6 +278,10 @@
DAL->append(A);
}
+ // Enforce -static if -miamcu is present.
+ if (Args.hasArg(options::OPT_miamcu))
+ DAL->AddFlagArg(0, Opts->getOption(options::OPT_static));
+
// Add a default value of -mlinker-version=, if one was given and the user
// didn't specify one.
#if defined(HOST_LINK_VERSION)
@@ -296,7 +300,8 @@
///
/// This routine provides the logic to compute a target triple from various
/// args passed to the driver and the default triple string.
-static llvm::Triple computeTargetTriple(StringRef DefaultTargetTriple,
+static llvm::Triple computeTargetTriple(const Driver &D,
+ StringRef DefaultTargetTriple,
const ArgList &Args,
StringRef DarwinArchName = "") {
// FIXME: Already done in Compilation *Driver::BuildCompilation
@@ -341,8 +346,9 @@
return Target;
// Handle pseudo-target flags '-m64', '-mx32', '-m32' and '-m16'.
- if (Arg *A = Args.getLastArg(options::OPT_m64, options::OPT_mx32,
- options::OPT_m32, options::OPT_m16)) {
+ Arg *A = Args.getLastArg(options::OPT_m64, options::OPT_mx32,
+ options::OPT_m32, options::OPT_m16);
+ if (A) {
llvm::Triple::ArchType AT = llvm::Triple::UnknownArch;
if (A->getOption().matches(options::OPT_m64)) {
@@ -367,6 +373,25 @@
Target.setArch(AT);
}
+ // Handle -miamcu flag.
+ if (Args.hasArg(options::OPT_miamcu)) {
+ if (Target.get32BitArchVariant().getArch() != llvm::Triple::x86)
+ D.Diag(diag::err_drv_unsupported_opt_for_target) << "-miamcu"
+ << Target.str();
+
+ if (A && !A->getOption().matches(options::OPT_m32))
+ D.Diag(diag::err_drv_argument_not_allowed_with)
+ << "-miamcu" << A->getBaseArg().getAsString(Args);
+
+ Target.setArch(llvm::Triple::x86);
+ Target.setArchName("i586");
+ Target.setEnvironment(llvm::Triple::UnknownEnvironment);
+ Target.setEnvironmentName("");
+ Target.setOS(llvm::Triple::ELFIAMCU);
+ Target.setVendor(llvm::Triple::UnknownVendor);
+ Target.setVendorName("intel");
+ }
+
return Target;
}
@@ -501,8 +526,8 @@
DerivedArgList *TranslatedArgs = TranslateInputArgs(*UArgs);
// Owned by the host.
- const ToolChain &TC =
- getToolChain(*UArgs, computeTargetTriple(DefaultTargetTriple, *UArgs));
+ const ToolChain &TC = getToolChain(
+ *UArgs, computeTargetTriple(*this, DefaultTargetTriple, *UArgs));
// The compilation takes ownership of Args.
Compilation *C = new Compilation(*this, TC, UArgs.release(), TranslatedArgs);
@@ -1981,9 +2006,9 @@
const char *ArchName = BAA->getArchName();
if (ArchName)
- TC = &getToolChain(
- C.getArgs(),
- computeTargetTriple(DefaultTargetTriple, C.getArgs(), ArchName));
+ TC = &getToolChain(C.getArgs(),
+ computeTargetTriple(*this, DefaultTargetTriple,
+ C.getArgs(), ArchName));
else
TC = &C.getDefaultToolChain();