1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
| //===-- MipsLinux.cpp - Mips ToolChain Implementations ----------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "MipsLinux.h"
#include "Arch/Mips.h"
#include "CommonArgs.h"
#include "clang/Driver/Driver.h"
#include "clang/Driver/DriverDiagnostic.h"
#include "clang/Driver/Options.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;
using namespace clang;
using namespace llvm::opt;
/// Mips Toolchain
MipsLLVMToolChain::MipsLLVMToolChain(const Driver &D,
const llvm::Triple &Triple,
const ArgList &Args)
: Linux(D, Triple, Args) {
// Select the correct multilib according to the given arguments.
DetectedMultilibs Result;
findMIPSMultilibs(D, Triple, "", Args, Result);
Multilibs = Result.Multilibs;
SelectedMultilib = Result.SelectedMultilib;
// Find out the library suffix based on the ABI.
LibSuffix = tools::mips::getMipsABILibSuffix(Args, Triple);
getFilePaths().clear();
getFilePaths().push_back(computeSysRoot() + "/usr/lib" + LibSuffix);
}
void MipsLLVMToolChain::AddClangSystemIncludeArgs(
const ArgList &DriverArgs, ArgStringList &CC1Args) const {
if (DriverArgs.hasArg(clang::driver::options::OPT_nostdinc))
return;
const Driver &D = getDriver();
if (!DriverArgs.hasArg(options::OPT_nobuiltininc)) {
SmallString<128> P(D.ResourceDir);
llvm::sys::path::append(P, "include");
addSystemInclude(DriverArgs, CC1Args, P);
}
if (DriverArgs.hasArg(options::OPT_nostdlibinc))
return;
const auto &Callback = Multilibs.includeDirsCallback();
if (Callback) {
for (const auto &Path : Callback(SelectedMultilib))
addExternCSystemIncludeIfExists(DriverArgs, CC1Args,
D.getInstalledDir() + Path);
}
}
Tool *MipsLLVMToolChain::buildLinker() const {
return new tools::gnutools::Linker(*this);
}
std::string MipsLLVMToolChain::computeSysRoot() const {
if (!getDriver().SysRoot.empty())
return getDriver().SysRoot + SelectedMultilib.osSuffix();
const std::string InstalledDir(getDriver().getInstalledDir());
std::string SysRootPath =
InstalledDir + "/../sysroot" + SelectedMultilib.osSuffix();
if (llvm::sys::fs::exists(SysRootPath))
return SysRootPath;
return std::string();
}
ToolChain::CXXStdlibType
MipsLLVMToolChain::GetCXXStdlibType(const ArgList &Args) const {
Arg *A = Args.getLastArg(options::OPT_stdlib_EQ);
if (A) {
StringRef Value = A->getValue();
if (Value != "libc++")
getDriver().Diag(clang::diag::err_drv_invalid_stdlib_name)
<< A->getAsString(Args);
}
return ToolChain::CST_Libcxx;
}
void MipsLLVMToolChain::addLibCxxIncludePaths(
const llvm::opt::ArgList &DriverArgs,
llvm::opt::ArgStringList &CC1Args) const {
if (const auto &Callback = Multilibs.includeDirsCallback()) {
for (std::string Path : Callback(SelectedMultilib)) {
Path = getDriver().getInstalledDir() + Path + "/c++/v1";
if (llvm::sys::fs::exists(Path)) {
addSystemInclude(DriverArgs, CC1Args, Path);
return;
}
}
}
}
void MipsLLVMToolChain::AddCXXStdlibLibArgs(const ArgList &Args,
ArgStringList &CmdArgs) const {
assert((GetCXXStdlibType(Args) == ToolChain::CST_Libcxx) &&
"Only -lc++ (aka libxx) is supported in this toolchain.");
CmdArgs.push_back("-lc++");
CmdArgs.push_back("-lc++abi");
CmdArgs.push_back("-lunwind");
}
std::string MipsLLVMToolChain::getCompilerRT(const ArgList &Args,
StringRef Component,
FileType Type) const {
SmallString<128> Path(getDriver().ResourceDir);
llvm::sys::path::append(Path, SelectedMultilib.osSuffix(), "lib" + LibSuffix,
getOS());
const char *Suffix;
switch (Type) {
case ToolChain::FT_Object:
Suffix = ".o";
break;
case ToolChain::FT_Static:
Suffix = ".a";
break;
case ToolChain::FT_Shared:
Suffix = ".so";
break;
}
llvm::sys::path::append(
Path, Twine("libclang_rt." + Component + "-" + "mips" + Suffix));
return Path.str();
}
|