1 //===--- XCore.cpp - XCore ToolChain Implementations ------------*- C++ -*-===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 
9 #include "XCore.h"
10 #include "CommonArgs.h"
11 #include "clang/Driver/Compilation.h"
12 #include "clang/Driver/Driver.h"
13 #include "clang/Driver/Options.h"
14 #include "llvm/Option/ArgList.h"
15 #include <cstdlib> // ::getenv
16 
17 using namespace clang::driver;
18 using namespace clang::driver::toolchains;
19 using namespace clang;
20 using namespace llvm::opt;
21 
22 /// XCore Tools
23 // We pass assemble and link construction to the xcc tool.
24 
25 void tools::XCore::Assembler::ConstructJob(Compilation &C, const JobAction &JA,
26                                            const InputInfo &Output,
27                                            const InputInfoList &Inputs,
28                                            const ArgList &Args,
29                                            const char *LinkingOutput) const {
30   claimNoWarnArgs(Args);
31   ArgStringList CmdArgs;
32 
33   CmdArgs.push_back("-o");
34   CmdArgs.push_back(Output.getFilename());
35 
36   CmdArgs.push_back("-c");
37 
38   if (Args.hasArg(options::OPT_v))
39     CmdArgs.push_back("-v");
40 
41   if (Arg *A = Args.getLastArg(options::OPT_g_Group))
42     if (!A->getOption().matches(options::OPT_g0))
43       CmdArgs.push_back("-g");
44 
45   if (Args.hasFlag(options::OPT_fverbose_asm, options::OPT_fno_verbose_asm,
46                    false))
47     CmdArgs.push_back("-fverbose-asm");
48 
49   Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA, options::OPT_Xassembler);
50 
51   for (const auto &II : Inputs)
52     CmdArgs.push_back(II.getFilename());
53 
54   const char *Exec = Args.MakeArgString(getToolChain().GetProgramPath("xcc"));
55   C.addCommand(std::make_unique<Command>(JA, *this, ResponseFileSupport::None(),
56                                          Exec, CmdArgs, Inputs, Output));
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(std::make_unique<Command>(JA, *this, ResponseFileSupport::None(),
85                                          Exec, CmdArgs, Inputs, Output));
86 }
87 
88 /// XCore tool chain
89 XCoreToolChain::XCoreToolChain(const Driver &D, const llvm::Triple &Triple,
90                                const ArgList &Args)
91     : ToolChain(D, Triple, Args) {
92   // ProgramPaths are found via 'PATH' environment variable.
93 }
94 
95 Tool *XCoreToolChain::buildAssembler() const {
96   return new tools::XCore::Assembler(*this);
97 }
98 
99 Tool *XCoreToolChain::buildLinker() const {
100   return new tools::XCore::Linker(*this);
101 }
102 
103 bool XCoreToolChain::isPICDefault() const { return false; }
104 
105 bool XCoreToolChain::isPIEDefault() const { return false; }
106 
107 bool XCoreToolChain::isPICDefaultForced() const { return false; }
108 
109 bool XCoreToolChain::SupportsProfiling() const { return false; }
110 
111 bool XCoreToolChain::hasBlocksRuntime() const { return false; }
112 
113 void XCoreToolChain::AddClangSystemIncludeArgs(const ArgList &DriverArgs,
114                                                ArgStringList &CC1Args) const {
115   if (DriverArgs.hasArg(clang::driver::options::OPT_nostdinc) ||
116       DriverArgs.hasArg(options::OPT_nostdlibinc))
117     return;
118   if (const char *cl_include_dir = getenv("XCC_C_INCLUDE_PATH")) {
119     SmallVector<StringRef, 4> Dirs;
120     const char EnvPathSeparatorStr[] = {llvm::sys::EnvPathSeparator, '\0'};
121     StringRef(cl_include_dir).split(Dirs, StringRef(EnvPathSeparatorStr));
122     ArrayRef<StringRef> DirVec(Dirs);
123     addSystemIncludes(DriverArgs, CC1Args, DirVec);
124   }
125 }
126 
127 void XCoreToolChain::addClangTargetOptions(const ArgList &DriverArgs,
128                                            ArgStringList &CC1Args,
129                                            Action::OffloadKind) const {
130   CC1Args.push_back("-nostdsysteminc");
131 }
132 
133 void XCoreToolChain::AddClangCXXStdlibIncludeArgs(
134     const ArgList &DriverArgs, ArgStringList &CC1Args) const {
135   if (DriverArgs.hasArg(clang::driver::options::OPT_nostdinc) ||
136       DriverArgs.hasArg(options::OPT_nostdlibinc) ||
137       DriverArgs.hasArg(options::OPT_nostdincxx))
138     return;
139   if (const char *cl_include_dir = getenv("XCC_CPLUS_INCLUDE_PATH")) {
140     SmallVector<StringRef, 4> Dirs;
141     const char EnvPathSeparatorStr[] = {llvm::sys::EnvPathSeparator, '\0'};
142     StringRef(cl_include_dir).split(Dirs, StringRef(EnvPathSeparatorStr));
143     ArrayRef<StringRef> DirVec(Dirs);
144     addSystemIncludes(DriverArgs, CC1Args, DirVec);
145   }
146 }
147 
148 void XCoreToolChain::AddCXXStdlibLibArgs(const ArgList &Args,
149                                          ArgStringList &CmdArgs) const {
150   // We don't output any lib args. This is handled by xcc.
151 }
152