1 //===--- XCore.cpp - XCore ToolChain Implementations ------------*- 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 "XCore.h"
11 #include "CommonArgs.h"
12 #include "clang/Driver/Compilation.h"
13 #include "clang/Driver/Driver.h"
14 #include "clang/Driver/Options.h"
15 #include "llvm/Option/ArgList.h"
16 #include <cstdlib> // ::getenv
17 
18 using namespace clang::driver;
19 using namespace clang::driver::toolchains;
20 using namespace clang;
21 using namespace llvm::opt;
22 
23 /// XCore Tools
24 // We pass assemble and link construction to the xcc tool.
25 
26 void tools::XCore::Assembler::ConstructJob(Compilation &C, const JobAction &JA,
27                                            const InputInfo &Output,
28                                            const InputInfoList &Inputs,
29                                            const ArgList &Args,
30                                            const char *LinkingOutput) const {
31   claimNoWarnArgs(Args);
32   ArgStringList CmdArgs;
33 
34   CmdArgs.push_back("-o");
35   CmdArgs.push_back(Output.getFilename());
36 
37   CmdArgs.push_back("-c");
38 
39   if (Args.hasArg(options::OPT_v))
40     CmdArgs.push_back("-v");
41 
42   if (Arg *A = Args.getLastArg(options::OPT_g_Group))
43     if (!A->getOption().matches(options::OPT_g0))
44       CmdArgs.push_back("-g");
45 
46   if (Args.hasFlag(options::OPT_fverbose_asm, options::OPT_fno_verbose_asm,
47                    false))
48     CmdArgs.push_back("-fverbose-asm");
49 
50   Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA, options::OPT_Xassembler);
51 
52   for (const auto &II : Inputs)
53     CmdArgs.push_back(II.getFilename());
54 
55   const char *Exec = Args.MakeArgString(getToolChain().GetProgramPath("xcc"));
56   C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs));
57 }
58 
59 void tools::XCore::Linker::ConstructJob(Compilation &C, const JobAction &JA,
60                                         const InputInfo &Output,
61                                         const InputInfoList &Inputs,
62                                         const ArgList &Args,
63                                         const char *LinkingOutput) const {
64   ArgStringList CmdArgs;
65 
66   if (Output.isFilename()) {
67     CmdArgs.push_back("-o");
68     CmdArgs.push_back(Output.getFilename());
69   } else {
70     assert(Output.isNothing() && "Invalid output.");
71   }
72 
73   if (Args.hasArg(options::OPT_v))
74     CmdArgs.push_back("-v");
75 
76   // Pass -fexceptions through to the linker if it was present.
77   if (Args.hasFlag(options::OPT_fexceptions, options::OPT_fno_exceptions,
78                    false))
79     CmdArgs.push_back("-fexceptions");
80 
81   AddLinkerInputs(getToolChain(), Inputs, Args, CmdArgs, JA);
82 
83   const char *Exec = Args.MakeArgString(getToolChain().GetProgramPath("xcc"));
84   C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs));
85 }
86 
87 /// XCore tool chain
88 XCoreToolChain::XCoreToolChain(const Driver &D, const llvm::Triple &Triple,
89                                const ArgList &Args)
90     : ToolChain(D, Triple, Args) {
91   // ProgramPaths are found via 'PATH' environment variable.
92 }
93 
94 Tool *XCoreToolChain::buildAssembler() const {
95   return new tools::XCore::Assembler(*this);
96 }
97 
98 Tool *XCoreToolChain::buildLinker() const {
99   return new tools::XCore::Linker(*this);
100 }
101 
102 bool XCoreToolChain::isPICDefault() const { return false; }
103 
104 bool XCoreToolChain::isPIEDefault() const { return false; }
105 
106 bool XCoreToolChain::isPICDefaultForced() const { return false; }
107 
108 bool XCoreToolChain::SupportsProfiling() const { return false; }
109 
110 bool XCoreToolChain::hasBlocksRuntime() const { return false; }
111 
112 void XCoreToolChain::AddClangSystemIncludeArgs(const ArgList &DriverArgs,
113                                                ArgStringList &CC1Args) const {
114   if (DriverArgs.hasArg(clang::driver::options::OPT_nostdinc) ||
115       DriverArgs.hasArg(options::OPT_nostdlibinc))
116     return;
117   if (const char *cl_include_dir = getenv("XCC_C_INCLUDE_PATH")) {
118     SmallVector<StringRef, 4> Dirs;
119     const char EnvPathSeparatorStr[] = {llvm::sys::EnvPathSeparator, '\0'};
120     StringRef(cl_include_dir).split(Dirs, StringRef(EnvPathSeparatorStr));
121     ArrayRef<StringRef> DirVec(Dirs);
122     addSystemIncludes(DriverArgs, CC1Args, DirVec);
123   }
124 }
125 
126 void XCoreToolChain::addClangTargetOptions(const ArgList &DriverArgs,
127                                            ArgStringList &CC1Args,
128                                            Action::OffloadKind) const {
129   CC1Args.push_back("-nostdsysteminc");
130 }
131 
132 void XCoreToolChain::AddClangCXXStdlibIncludeArgs(
133     const ArgList &DriverArgs, ArgStringList &CC1Args) const {
134   if (DriverArgs.hasArg(clang::driver::options::OPT_nostdinc) ||
135       DriverArgs.hasArg(options::OPT_nostdlibinc) ||
136       DriverArgs.hasArg(options::OPT_nostdincxx))
137     return;
138   if (const char *cl_include_dir = getenv("XCC_CPLUS_INCLUDE_PATH")) {
139     SmallVector<StringRef, 4> Dirs;
140     const char EnvPathSeparatorStr[] = {llvm::sys::EnvPathSeparator, '\0'};
141     StringRef(cl_include_dir).split(Dirs, StringRef(EnvPathSeparatorStr));
142     ArrayRef<StringRef> DirVec(Dirs);
143     addSystemIncludes(DriverArgs, CC1Args, DirVec);
144   }
145 }
146 
147 void XCoreToolChain::AddCXXStdlibLibArgs(const ArgList &Args,
148                                          ArgStringList &CmdArgs) const {
149   // We don't output any lib args. This is handled by xcc.
150 }
151