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
17using namespace clang::driver;
18using namespace clang::driver::toolchains;
19using namespace clang;
20using namespace llvm::opt;
21
22/// XCore Tools
23// We pass assemble and link construction to the xcc tool.
24
25void 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
59void 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
89XCoreToolChain::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
95Tool *XCoreToolChain::buildAssembler() const {
96  return new tools::XCore::Assembler(*this);
97}
98
99Tool *XCoreToolChain::buildLinker() const {
100  return new tools::XCore::Linker(*this);
101}
102
103bool XCoreToolChain::isPICDefault() const { return false; }
104
105bool XCoreToolChain::isPIEDefault(const llvm::opt::ArgList &Args) const {
106  return false;
107}
108
109bool XCoreToolChain::isPICDefaultForced() const { return false; }
110
111bool XCoreToolChain::SupportsProfiling() const { return false; }
112
113bool XCoreToolChain::hasBlocksRuntime() const { return false; }
114
115void XCoreToolChain::AddClangSystemIncludeArgs(const ArgList &DriverArgs,
116                                               ArgStringList &CC1Args) const {
117  if (DriverArgs.hasArg(clang::driver::options::OPT_nostdinc) ||
118      DriverArgs.hasArg(options::OPT_nostdlibinc))
119    return;
120  if (const char *cl_include_dir = getenv("XCC_C_INCLUDE_PATH")) {
121    SmallVector<StringRef, 4> Dirs;
122    const char EnvPathSeparatorStr[] = {llvm::sys::EnvPathSeparator, '\0'};
123    StringRef(cl_include_dir).split(Dirs, StringRef(EnvPathSeparatorStr));
124    ArrayRef<StringRef> DirVec(Dirs);
125    addSystemIncludes(DriverArgs, CC1Args, DirVec);
126  }
127}
128
129void XCoreToolChain::addClangTargetOptions(const ArgList &DriverArgs,
130                                           ArgStringList &CC1Args,
131                                           Action::OffloadKind) const {
132  CC1Args.push_back("-nostdsysteminc");
133  // Set `-fno-use-cxa-atexit` to default.
134  if (!DriverArgs.hasFlag(options::OPT_fuse_cxa_atexit,
135                          options::OPT_fno_use_cxa_atexit, false))
136    CC1Args.push_back("-fno-use-cxa-atexit");
137}
138
139void XCoreToolChain::AddClangCXXStdlibIncludeArgs(
140    const ArgList &DriverArgs, ArgStringList &CC1Args) const {
141  if (DriverArgs.hasArg(clang::driver::options::OPT_nostdinc) ||
142      DriverArgs.hasArg(options::OPT_nostdlibinc) ||
143      DriverArgs.hasArg(options::OPT_nostdincxx))
144    return;
145  if (const char *cl_include_dir = getenv("XCC_CPLUS_INCLUDE_PATH")) {
146    SmallVector<StringRef, 4> Dirs;
147    const char EnvPathSeparatorStr[] = {llvm::sys::EnvPathSeparator, '\0'};
148    StringRef(cl_include_dir).split(Dirs, StringRef(EnvPathSeparatorStr));
149    ArrayRef<StringRef> DirVec(Dirs);
150    addSystemIncludes(DriverArgs, CC1Args, DirVec);
151  }
152}
153
154void XCoreToolChain::AddCXXStdlibLibArgs(const ArgList &Args,
155                                         ArgStringList &CmdArgs) const {
156  // We don't output any lib args. This is handled by xcc.
157}
158