benshi001 created this revision.
benshi001 added reviewers: aykevl, dylanmckay, MaskRay.
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benshi001 requested review of this revision.
Herald added subscribers: cfe-commits, jacquesguan.
Herald added a project: clang.
Devices belongs to the avr1 family do not has SRAM, so
only assembly source files should be accepted. This behaviour
conforms to GCC.
Repository:
rG LLVM Github Monorepo
https://reviews.llvm.org/D117423
Files:
clang/include/clang/Basic/DiagnosticDriverKinds.td
clang/lib/Driver/ToolChains/AVR.cpp
clang/lib/Driver/ToolChains/AVR.h
clang/test/Driver/avr-mmcu.c
Index: clang/test/Driver/avr-mmcu.c
===================================================================
--- clang/test/Driver/avr-mmcu.c
+++ clang/test/Driver/avr-mmcu.c
@@ -1,8 +1,7 @@
// A test for the propagation of the -mmcu option to -cc1 and -cc1as
-// RUN: %clang -### -target avr -no-canonical-prefixes -mmcu=attiny11 -save-temps %s 2>&1 | FileCheck -check-prefix=CHECK0 %s
-// CHECK0: clang{{.*}} "-cc1" {{.*}} "-target-cpu" "attiny11"
-// CHECK0: clang{{.*}} "-cc1as" {{.*}} "-target-cpu" "attiny11"
+// RUN: %clang -### -target avr -no-canonical-prefixes -mmcu=attiny11 %s 2>&1 | FileCheck -check-prefix=CHECK0 %s
+// CHECK0: error: CPU 'attiny11' does not support 'c' language mode
// RUN: %clang -### -target avr -no-canonical-prefixes -mmcu=at90s2313 -save-temps %s 2>&1 | FileCheck -check-prefix=CHECK1 %s
// CHECK1: clang{{.*}} "-cc1" {{.*}} "-target-cpu" "at90s2313"
Index: clang/lib/Driver/ToolChains/AVR.h
===================================================================
--- clang/lib/Driver/ToolChains/AVR.h
+++ clang/lib/Driver/ToolChains/AVR.h
@@ -19,6 +19,8 @@
namespace toolchains {
class LLVM_LIBRARY_VISIBILITY AVRToolChain : public Generic_ELF {
+ std::string AVRMcu;
+
public:
AVRToolChain(const Driver &D, const llvm::Triple &Triple,
const llvm::opt::ArgList &Args);
Index: clang/lib/Driver/ToolChains/AVR.cpp
===================================================================
--- clang/lib/Driver/ToolChains/AVR.cpp
+++ clang/lib/Driver/ToolChains/AVR.cpp
@@ -12,6 +12,7 @@
#include "clang/Driver/DriverDiagnostic.h"
#include "clang/Driver/InputInfo.h"
#include "clang/Driver/Options.h"
+#include "clang/Driver/Types.h"
#include "llvm/ADT/Optional.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/ADT/StringSwitch.h"
@@ -19,6 +20,7 @@
#include "llvm/MC/SubtargetFeature.h"
#include "llvm/Option/ArgList.h"
#include "llvm/Support/FileSystem.h"
+#include "llvm/Support/Path.h"
using namespace clang::driver;
using namespace clang::driver::toolchains;
@@ -311,24 +313,26 @@
: Generic_ELF(D, Triple, Args), LinkStdlib(false) {
GCCInstallation.init(Triple, Args);
+ // Save the CPU name for further checks.
+ AVRMcu = getCPUName(D, Args, Triple);
+
// Only add default libraries if the user hasn't explicitly opted out.
if (!Args.hasArg(options::OPT_nostdlib) &&
!Args.hasArg(options::OPT_nodefaultlibs) &&
!Args.hasArg(options::OPT_c /* does not apply when not linking */)) {
- std::string CPU = getCPUName(D, Args, Triple);
- if (CPU.empty()) {
+ if (AVRMcu.empty()) {
// We cannot link any standard libraries without an MCU specified.
D.Diag(diag::warn_drv_avr_mcu_not_specified);
} else {
- Optional<StringRef> FamilyName = GetMCUFamilyName(CPU);
+ Optional<StringRef> FamilyName = GetMCUFamilyName(AVRMcu);
Optional<std::string> AVRLibcRoot = findAVRLibcInstallation();
if (!FamilyName.hasValue()) {
// We do not have an entry for this CPU in the family
// mapping table yet.
D.Diag(diag::warn_drv_avr_family_linking_stdlibs_not_implemented)
- << CPU;
+ << AVRMcu;
} else if (!GCCInstallation.isValid()) {
// No avr-gcc found and so no runtime linked.
D.Diag(diag::warn_drv_avr_gcc_not_found);
@@ -339,7 +343,7 @@
std::string GCCRoot(GCCInstallation.getInstallPath());
std::string GCCParentPath(GCCInstallation.getParentLibPath());
std::string LibcRoot = AVRLibcRoot.getValue();
- std::string SubPath = GetMCUSubPath(CPU);
+ std::string SubPath = GetMCUSubPath(AVRMcu);
getProgramPaths().push_back(GCCParentPath + "/../bin");
getFilePaths().push_back(LibcRoot + std::string("/lib/") + SubPath);
@@ -379,6 +383,24 @@
if (!DriverArgs.hasFlag(options::OPT_fuse_init_array,
options::OPT_fno_use_init_array, false))
CC1Args.push_back("-fno-use-init-array");
+
+ // Search for the main file name.
+ const char *MainFileName = nullptr;
+ for (unsigned I = 0; I < CC1Args.size(); I++)
+ if (StringRef(CC1Args[I]) == "-main-file-name")
+ MainFileName = CC1Args[I + 1];
+ // Report an error if the main input file is not assembly and the avr mcu
+ // belongs to the AVR1 family.
+ if (MainFileName) {
+ llvm::Optional<StringRef> FamilyName = GetMCUFamilyName(AVRMcu);
+ if (FamilyName.hasValue() && *FamilyName == "avr1") {
+ types::ID MainFileId = types::lookupTypeForExtension(
+ llvm::sys::path::extension(MainFileName).drop_front());
+ if (MainFileId != types::TY_Asm)
+ getDriver().Diag(diag::err_cpu_unsupported_language)
+ << AVRMcu << getTypeName(MainFileId);
+ }
+ }
}
Tool *AVRToolChain::buildLinker() const {
Index: clang/include/clang/Basic/DiagnosticDriverKinds.td
===================================================================
--- clang/include/clang/Basic/DiagnosticDriverKinds.td
+++ clang/include/clang/Basic/DiagnosticDriverKinds.td
@@ -232,6 +232,8 @@
: Error<"the target architecture '%0' is not supported by the target '%1'">;
def err_cpu_unsupported_isa
: Error<"CPU '%0' does not support '%1' execution mode">;
+def err_cpu_unsupported_language
+ : Error<"CPU '%0' does not support '%1' language mode">;
def err_arch_unsupported_isa
: Error<"architecture '%0' does not support '%1' execution mode">;
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