Add support for AArch64 target.
In cooperation with the LLVM patch, this should implement all scalar front-end
parts of the C and C++ ABIs for AArch64.
This patch excludes the NEON support also reviewed due to an outbreak of
batshit insanity in our legal department. That will be committed soon bringing
the changes to precisely what has been approved.
Further reviews would be gratefully received.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@174055 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Driver/ToolChains.cpp b/lib/Driver/ToolChains.cpp
index 6f68f1c..39f0f06 100644
--- a/lib/Driver/ToolChains.cpp
+++ b/lib/Driver/ToolChains.cpp
@@ -1081,6 +1081,12 @@
// Declare a bunch of static data sets that we'll select between below. These
// are specifically designed to always refer to string literals to avoid any
// lifetime or initialization issues.
+ static const char *const AArch64LibDirs[] = { "/lib" };
+ static const char *const AArch64Triples[] = {
+ "aarch64-none-linux-gnu",
+ "aarch64-linux-gnu"
+ };
+
static const char *const ARMLibDirs[] = { "/lib" };
static const char *const ARMTriples[] = {
"arm-linux-gnueabi",
@@ -1146,6 +1152,16 @@
};
switch (TargetTriple.getArch()) {
+ case llvm::Triple::aarch64:
+ LibDirs.append(AArch64LibDirs, AArch64LibDirs
+ + llvm::array_lengthof(AArch64LibDirs));
+ TripleAliases.append(
+ AArch64Triples, AArch64Triples + llvm::array_lengthof(AArch64Triples));
+ MultiarchLibDirs.append(
+ AArch64LibDirs, AArch64LibDirs + llvm::array_lengthof(AArch64LibDirs));
+ MultiarchTripleAliases.append(
+ AArch64Triples, AArch64Triples + llvm::array_lengthof(AArch64Triples));
+ break;
case llvm::Triple::arm:
case llvm::Triple::thumb:
LibDirs.append(ARMLibDirs, ARMLibDirs + llvm::array_lengthof(ARMLibDirs));
@@ -2218,6 +2234,9 @@
if (llvm::sys::fs::exists(SysRoot + "/lib/x86_64-linux-gnu"))
return "x86_64-linux-gnu";
return TargetTriple.str();
+ case llvm::Triple::aarch64:
+ if (llvm::sys::fs::exists(SysRoot + "/lib/aarch64-linux-gnu"))
+ return "aarch64-linux-gnu";
case llvm::Triple::mips:
if (llvm::sys::fs::exists(SysRoot + "/lib/mips-linux-gnu"))
return "mips-linux-gnu";
@@ -2444,6 +2463,7 @@
const Generic_GCC::GCCVersion &V = GCCInstallation.getVersion();
bool UseInitArrayDefault
= V >= Generic_GCC::GCCVersion::Parse("4.7.0") ||
+ getTriple().getArch() == llvm::Triple::aarch64 ||
getTriple().getEnvironment() == llvm::Triple::Android;
if (DriverArgs.hasFlag(options::OPT_fuse_init_array,
options::OPT_fno_use_init_array,
@@ -2506,6 +2526,9 @@
"/usr/include/i686-linux-gnu",
"/usr/include/i486-linux-gnu"
};
+ const StringRef AArch64MultiarchIncludeDirs[] = {
+ "/usr/include/aarch64-linux-gnu"
+ };
const StringRef ARMMultiarchIncludeDirs[] = {
"/usr/include/arm-linux-gnueabi"
};
@@ -2529,6 +2552,8 @@
MultiarchIncludeDirs = X86_64MultiarchIncludeDirs;
} else if (getTriple().getArch() == llvm::Triple::x86) {
MultiarchIncludeDirs = X86MultiarchIncludeDirs;
+ } else if (getTriple().getArch() == llvm::Triple::aarch64) {
+ MultiarchIncludeDirs = AArch64MultiarchIncludeDirs;
} else if (getTriple().getArch() == llvm::Triple::arm) {
if (getTriple().getEnvironment() == llvm::Triple::GNUEABIHF)
MultiarchIncludeDirs = ARMHFMultiarchIncludeDirs;
diff --git a/lib/Driver/ToolChains.h b/lib/Driver/ToolChains.h
index c0a9646..b313ab6 100644
--- a/lib/Driver/ToolChains.h
+++ b/lib/Driver/ToolChains.h
@@ -388,7 +388,8 @@
virtual bool IsIntegratedAssemblerDefault() const {
// Default integrated assembler to on for x86.
- return (getTriple().getArch() == llvm::Triple::x86 ||
+ return (getTriple().getArch() == llvm::Triple::aarch64 ||
+ getTriple().getArch() == llvm::Triple::x86 ||
getTriple().getArch() == llvm::Triple::x86_64);
}
};
diff --git a/lib/Driver/Tools.cpp b/lib/Driver/Tools.cpp
index f925f76..cb7cc23 100644
--- a/lib/Driver/Tools.cpp
+++ b/lib/Driver/Tools.cpp
@@ -549,6 +549,7 @@
default:
return true;
+ case llvm::Triple::aarch64:
case llvm::Triple::arm:
case llvm::Triple::ppc:
case llvm::Triple::ppc64:
@@ -5578,6 +5579,8 @@
CmdArgs.push_back("-m");
if (ToolChain.getArch() == llvm::Triple::x86)
CmdArgs.push_back("elf_i386");
+ else if (ToolChain.getArch() == llvm::Triple::aarch64)
+ CmdArgs.push_back("aarch64linux");
else if (ToolChain.getArch() == llvm::Triple::arm
|| ToolChain.getArch() == llvm::Triple::thumb)
CmdArgs.push_back("armelf_linux_eabi");
@@ -5626,6 +5629,8 @@
CmdArgs.push_back("/system/bin/linker");
else if (ToolChain.getArch() == llvm::Triple::x86)
CmdArgs.push_back("/lib/ld-linux.so.2");
+ else if (ToolChain.getArch() == llvm::Triple::aarch64)
+ CmdArgs.push_back("/lib/ld-linux-aarch64.so.1");
else if (ToolChain.getArch() == llvm::Triple::arm ||
ToolChain.getArch() == llvm::Triple::thumb) {
if (ToolChain.getTriple().getEnvironment() == llvm::Triple::GNUEABIHF)