clang 8.0.0

MSP430.cpp
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1 //===--- MSP430.cpp - MSP430 Helpers for Tools ------------------*- C++ -*-===//
2 //
3 // The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9
10 #include "MSP430.h"
11 #include "CommonArgs.h"
12 #include "Gnu.h"
13 #include "InputInfo.h"
14 #include "clang/Driver/Compilation.h"
15 #include "clang/Driver/Multilib.h"
16 #include "clang/Driver/Options.h"
17 #include "llvm/Option/ArgList.h"
18 #include "llvm/Support/FileSystem.h"
19 #include "llvm/Support/Path.h"
20
21 using namespace clang::driver;
22 using namespace clang::driver::toolchains;
23 using namespace clang::driver::tools;
24 using namespace clang;
25 using namespace llvm::opt;
26
27 static bool isSupportedMCU(const StringRef MCU) {
28 return llvm::StringSwitch<bool>(MCU)
29 #define MSP430_MCU(NAME) .Case(NAME, true)
30 #include "clang/Basic/MSP430Target.def"
31 .Default(false);
32 }
33
34 static StringRef getSupportedHWMult(const Arg *MCU) {
35 if (!MCU)
36 return "none";
37
38 return llvm::StringSwitch<StringRef>(MCU->getValue())
39 #define MSP430_MCU_FEAT(NAME, HWMULT) .Case(NAME, HWMULT)
40 #include "clang/Basic/MSP430Target.def"
41 .Default("none");
42 }
43
44 static StringRef getHWMultLib(const ArgList &Args) {
45 StringRef HWMult = Args.getLastArgValue(options::OPT_mhwmult_EQ, "auto");
46 if (HWMult == "auto") {
47 HWMult = getSupportedHWMult(Args.getLastArg(options::OPT_mmcu_EQ));
48 }
49
50 return llvm::StringSwitch<StringRef>(HWMult)
51 .Case("16bit", "-lmul_16")
52 .Case("32bit", "-lmul_32")
53 .Case("f5series", "-lmul_f5")
54 .Default("-lmul_none");
55 }
56
57 void msp430::getMSP430TargetFeatures(const Driver &D, const ArgList &Args,
58 std::vector<StringRef> &Features) {
59 const Arg *MCU = Args.getLastArg(options::OPT_mmcu_EQ);
60 if (MCU && !isSupportedMCU(MCU->getValue())) {
61 D.Diag(diag::err_drv_clang_unsupported) << MCU->getValue();
62 return;
63 }
64
65 const Arg *HWMultArg = Args.getLastArg(options::OPT_mhwmult_EQ);
66 if (!MCU && !HWMultArg)
67 return;
68
69 StringRef HWMult = HWMultArg ? HWMultArg->getValue() : "auto";
70 StringRef SupportedHWMult = getSupportedHWMult(MCU);
71
72 if (HWMult == "auto") {
73 // 'auto' - deduce hw multiplier support based on mcu name provided.
74 // If no mcu name is provided, assume no hw multiplier is supported.
75 if (!MCU)
76 D.Diag(clang::diag::warn_drv_msp430_hwmult_no_device);
77 HWMult = SupportedHWMult;
78 }
79
80 if (HWMult == "none") {
81 // 'none' - disable hw multiplier.
82 Features.push_back("-hwmult16");
83 Features.push_back("-hwmult32");
84 Features.push_back("-hwmultf5");
85 return;
86 }
87
88 if (MCU && SupportedHWMult == "none")
89 D.Diag(clang::diag::warn_drv_msp430_hwmult_unsupported) << HWMult;
90 if (MCU && HWMult != SupportedHWMult)
91 D.Diag(clang::diag::warn_drv_msp430_hwmult_mismatch)
92 << SupportedHWMult << HWMult;
93
94 if (HWMult == "16bit") {
95 // '16bit' - for 16-bit only hw multiplier.
96 Features.push_back("+hwmult16");
97 } else if (HWMult == "32bit") {
98 // '32bit' - for 16/32-bit hw multiplier.
99 Features.push_back("+hwmult32");
100 } else if (HWMult == "f5series") {
101 // 'f5series' - for 16/32-bit hw multiplier supported by F5 series mcus.
102 Features.push_back("+hwmultf5");
103 } else {
104 D.Diag(clang::diag::err_drv_unsupported_option_argument)
105 << HWMultArg->getAsString(Args) << HWMult;
106 }
107 }
108
109 /// MSP430 Toolchain
110 MSP430ToolChain::MSP430ToolChain(const Driver &D, const llvm::Triple &Triple,
111 const ArgList &Args)
112 : Generic_ELF(D, Triple, Args) {
113
114 StringRef MultilibSuf = "";
115
116 GCCInstallation.init(Triple, Args);
117 if (GCCInstallation.isValid()) {
118 MultilibSuf = GCCInstallation.getMultilib().gccSuffix();
119
120 SmallString<128> GCCBinPath;
121 llvm::sys::path::append(GCCBinPath,
122 GCCInstallation.getParentLibPath(), "..", "bin");
123 addPathIfExists(D, GCCBinPath, getProgramPaths());
124
125 SmallString<128> GCCRtPath;
126 llvm::sys::path::append(GCCRtPath,
127 GCCInstallation.getInstallPath(), MultilibSuf);
128 addPathIfExists(D, GCCRtPath, getFilePaths());
129 }
130
131 SmallString<128> SysRootDir(computeSysRoot());
132 llvm::sys::path::append(SysRootDir, "lib", MultilibSuf);
133 addPathIfExists(D, SysRootDir, getFilePaths());
134 }
135
136 std::string MSP430ToolChain::computeSysRoot() const {
137 if (!getDriver().SysRoot.empty())
138 return getDriver().SysRoot;
139
140 SmallString<128> Dir;
141 if (GCCInstallation.isValid())
142 llvm::sys::path::append(Dir, GCCInstallation.getParentLibPath(), "..",
143 GCCInstallation.getTriple().str());
144 else
145 llvm::sys::path::append(Dir, getDriver().Dir, "..", getTriple().str());
146
147 return Dir.str();
148 }
149
150 void MSP430ToolChain::AddClangSystemIncludeArgs(const ArgList &DriverArgs,
151 ArgStringList &CC1Args) const {
152 if (DriverArgs.hasArg(options::OPT_nostdinc) ||
153 DriverArgs.hasArg(options::OPT_nostdlibinc))
154 return;
155
156 SmallString<128> Dir(computeSysRoot());
157 llvm::sys::path::append(Dir, "include");
158 addSystemInclude(DriverArgs, CC1Args, Dir.str());
159 }
160
161 void MSP430ToolChain::addClangTargetOptions(const ArgList &DriverArgs,
162 ArgStringList &CC1Args,
163 Action::OffloadKind) const {
164 CC1Args.push_back("-nostdsysteminc");
165
166 const auto *MCUArg = DriverArgs.getLastArg(options::OPT_mmcu_EQ);
167 if (!MCUArg)
168 return;
169
170 const StringRef MCU = MCUArg->getValue();
171 if (MCU.startswith("msp430i")) {
172 // 'i' should be in lower case as it's defined in TI MSP430-GCC headers
173 CC1Args.push_back(DriverArgs.MakeArgString(
174 "-D__MSP430i" + MCU.drop_front(7).upper() + "__"));
175 } else {
176 CC1Args.push_back(DriverArgs.MakeArgString("-D__" + MCU.upper() + "__"));
177 }
178 }
179
180 Tool *MSP430ToolChain::buildLinker() const {
181 return new tools::msp430::Linker(*this);
182 }
183
184 void msp430::Linker::ConstructJob(Compilation &C, const JobAction &JA,
185 const InputInfo &Output,
186 const InputInfoList &Inputs,
187 const ArgList &Args,
188 const char *LinkingOutput) const {
189 const ToolChain &ToolChain = getToolChain();
190 const Driver &D = ToolChain.getDriver();
191 std::string Linker = ToolChain.GetProgramPath(getShortName());
192 ArgStringList CmdArgs;
193
194 if (!D.SysRoot.empty())
195 CmdArgs.push_back(Args.MakeArgString("--sysroot=" + D.SysRoot));
196
197 Args.AddAllArgs(CmdArgs, options::OPT_L);
198 ToolChain.AddFilePathLibArgs(Args, CmdArgs);
199
200 if (!Args.hasArg(options::OPT_T)) {
201 if (const Arg *MCUArg = Args.getLastArg(options::OPT_mmcu_EQ))
202 CmdArgs.push_back(
203 Args.MakeArgString("-T" + StringRef(MCUArg->getValue()) + ".ld"));
204 } else {
205 Args.AddAllArgs(CmdArgs, options::OPT_T);
206 }
207
208 if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) {
209 CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crt0.o")));
210 CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crtbegin.o")));
211 }
212
213 AddLinkerInputs(getToolChain(), Inputs, Args, CmdArgs, JA);
214
215 CmdArgs.push_back("--start-group");
216 CmdArgs.push_back(Args.MakeArgString(getHWMultLib(Args)));
217 CmdArgs.push_back("-lgcc");
218 if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs)) {
219 CmdArgs.push_back("-lc");
220 CmdArgs.push_back("-lcrt");
221 CmdArgs.push_back("-lnosys");
222 }
223 CmdArgs.push_back("--end-group");
224
225 if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) {
226 CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crtend.o")));
227 CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crtn.o")));
228 }
229 CmdArgs.push_back("-o");
230 CmdArgs.push_back(Output.getFilename());
231 C.addCommand(llvm::make_unique<Command>(JA, *this, Args.MakeArgString(Linker),
232 CmdArgs, Inputs));
233 }
clang::driver::toolchains::MSP430ToolChain::buildLinker
Tool * buildLinker() const override
Definition: MSP430.cpp:180
clang::driver::toolchains::Generic_GCC::GCCInstallationDetector::getTriple
const llvm::Triple & getTriple() const
Get the GCC triple for the detected install.
Definition: Gnu.h:220
clang::driver::Driver::Diag
DiagnosticBuilder Diag(unsigned DiagID) const
Definition: Driver.h:109
isSupportedMCU
static bool isSupportedMCU(const StringRef MCU)
Definition: MSP430.cpp:27
clang::driver::InputInfo::getFilename
const char * getFilename() const
Definition: InputInfo.h:84
clang::driver::toolchains::Generic_GCC::GCCInstallation
GCCInstallationDetector GCCInstallation
Definition: Gnu.h:280
MSP430_MCU
#define MSP430_MCU(NAME)
clang::driver::ToolChain::getProgramPaths
path_list & getProgramPaths()
Definition: ToolChain.h:227
CommonArgs.h
clang::driver::JobAction
Definition: Action.h:374
clang::driver::Multilib::gccSuffix
const std::string & gccSuffix() const
Get the detected GCC installation path suffix for the multi-arch target variant.
Definition: Multilib.h:45
clang::driver::tools
Definition: AMDGPU.h:21
clang::driver::InputInfo
InputInfo - Wrapper for information about an input source.
Definition: InputInfo.h:23
clang::driver::ToolChain::GetFilePath
std::string GetFilePath(const char *Name) const
Definition: ToolChain.cpp:431
clang::driver::ToolChain::getFilePaths
path_list & getFilePaths()
Definition: ToolChain.h:224
clang::driver::Driver
Driver - Encapsulate logic for constructing compilation processes from a set of gcc-driver-like comma...
Definition: Driver.h:58
llvm::SmallString
Definition: LLVM.h:35
Compilation.h
llvm::str
return Out str()
clang::driver::toolchains::Generic_ELF
Definition: Gnu.h:340
llvm::opt
Definition: Action.h:24
clang::driver::Compilation::addCommand
void addCommand(std::unique_ptr< Command > C)
Definition: Compilation.h:206
clang::driver::toolchains::MSP430ToolChain::addClangTargetOptions
void addClangTargetOptions(const llvm::opt::ArgList &DriverArgs, llvm::opt::ArgStringList &CC1Args, Action::OffloadKind) const override
Add options that need to be passed to cc1 for this target.
Definition: MSP430.cpp:161
MSP430.h
clang::driver::ToolChain::AddFilePathLibArgs
void AddFilePathLibArgs(const llvm::opt::ArgList &Args, llvm::opt::ArgStringList &CmdArgs) const
AddFilePathLibArgs - Add each thing in getFilePaths() as a "-L" option.
Definition: ToolChain.cpp:778
MSP430_MCU_FEAT
#define MSP430_MCU_FEAT(NAME, HWMULT)
clang::driver::ToolChain::getDriver
const Driver & getDriver() const
Definition: ToolChain.h:186
Multilib.h
clang::driver::toolchains::MSP430ToolChain::MSP430ToolChain
MSP430ToolChain(const Driver &D, const llvm::Triple &Triple, const llvm::opt::ArgList &Args)
MSP430 Toolchain.
Definition: MSP430.cpp:110
llvm::SmallVector
Definition: LLVM.h:36
clang::driver::ToolChain::addSystemInclude
static void addSystemInclude(const llvm::opt::ArgList &DriverArgs, llvm::opt::ArgStringList &CC1Args, const Twine &Path)
Utility function to add a system include directory to CC1 arguments.
Definition: ToolChain.cpp:702
Options.h
clang::driver::toolchains::Generic_GCC::GCCInstallationDetector::getParentLibPath
StringRef getParentLibPath() const
Get the detected GCC parent lib path.
Definition: Gnu.h:226
Gnu.h
clang::driver::Action::OffloadKind
OffloadKind
Definition: Action.h:83
clang
Dataflow Directional Tag Classes.
Definition: CFGReachabilityAnalysis.h:22
clang::driver::tools::AddLinkerInputs
void AddLinkerInputs(const ToolChain &TC, const InputInfoList &Inputs, const llvm::opt::ArgList &Args, llvm::opt::ArgStringList &CmdArgs, const JobAction &JA)
clang::driver::Driver::SysRoot
std::string SysRoot
sysroot, if present
Definition: Driver.h:148
getHWMultLib
static StringRef getHWMultLib(const ArgList &Args)
Definition: MSP430.cpp:44
clang::driver::Tool
Tool - Information on a specific compilation tool.
Definition: Tool.h:34
InputInfo.h
clang::driver::tools::msp430::getMSP430TargetFeatures
void getMSP430TargetFeatures(const Driver &D, const llvm::opt::ArgList &Args, std::vector< llvm::StringRef > &Features)
clang::driver::toolchains::MSP430ToolChain::AddClangSystemIncludeArgs
void AddClangSystemIncludeArgs(const llvm::opt::ArgList &DriverArgs, llvm::opt::ArgStringList &CC1Args) const override
Add the clang cc1 arguments for system include paths.
Definition: MSP430.cpp:150
clang::driver::Compilation
Compilation - A set of tasks to perform for a single driver invocation.
Definition: Compilation.h:46
clang::driver::ToolChain::getTriple
const llvm::Triple & getTriple() const
Definition: ToolChain.h:188
clang::driver
Definition: Action.h:32
clang::driver::toolchains
Definition: AMDGPU.h:41
clang::driver::ToolChain::GetProgramPath
std::string GetProgramPath(const char *Name) const
Definition: ToolChain.cpp:435
clang::driver::tools::msp430::Linker
Definition: MSP430.h:52
clang::driver::tools::addPathIfExists
void addPathIfExists(const Driver &D, const Twine &Path, ToolChain::path_list &Paths)
Definition: CommonArgs.cpp:62
clang::driver::toolchains::Generic_GCC::GCCInstallationDetector::init
void init(const llvm::Triple &TargetTriple, const llvm::opt::ArgList &Args, ArrayRef< std::string > ExtraTripleAliases=None)
Initialize a GCCInstallationDetector from the driver.
Definition: Gnu.cpp:1702
getSupportedHWMult
static StringRef getSupportedHWMult(const Arg *MCU)
Definition: MSP430.cpp:34
clang::driver::toolchains::Generic_GCC::GCCInstallationDetector::getInstallPath
StringRef getInstallPath() const
Get the detected GCC installation path.
Definition: Gnu.h:223
clang::driver::toolchains::Generic_GCC::GCCInstallationDetector::getMultilib
const Multilib & getMultilib() const
Get the detected Multilib.
Definition: Gnu.h:229
clang::driver::ToolChain
ToolChain - Access to tools for a single platform.
Definition: ToolChain.h:89
clang::driver::toolchains::Generic_GCC::GCCInstallationDetector::isValid
bool isValid() const
Check whether we detected a valid GCC install.
Definition: Gnu.h:217