stevewan created this revision.
Herald added subscribers: cfe-commits, jsji, jfb, kbarton, mgorny, nemanjai.
Herald added a project: clang.
This patch adds AIX toolchain infrastructure into driver, and enables AIX
system linker invocation with some basic functionality support
Repository:
rG LLVM Github Monorepo
https://reviews.llvm.org/D68340
Files:
clang/lib/Driver/CMakeLists.txt
clang/lib/Driver/Driver.cpp
clang/lib/Driver/ToolChains/AIX.cpp
clang/lib/Driver/ToolChains/AIX.h
clang/test/Driver/Inputs/aix_ppc_tree/gcc/powerpc-ibm-aix7.1.0.0/6.3.0/libgcc.a
clang/test/Driver/Inputs/aix_ppc_tree/usr/lib/crt0.o
clang/test/Driver/Inputs/aix_ppc_tree/usr/lib/crt0_64.o
clang/test/Driver/Inputs/aix_ppc_tree/usr/lib/crti.o
clang/test/Driver/Inputs/aix_ppc_tree/usr/lib/crti_64.o
clang/test/Driver/Inputs/aix_ppc_tree/usr/lib/gcrt0.o
clang/test/Driver/Inputs/aix_ppc_tree/usr/lib/gcrt0_64.o
clang/test/Driver/Inputs/aix_ppc_tree/usr/lib/mcrt0.o
clang/test/Driver/Inputs/aix_ppc_tree/usr/lib/mcrt0_64.o
clang/test/Driver/aix-ld.c
Index: clang/test/Driver/aix-ld.c
===================================================================
--- /dev/null
+++ clang/test/Driver/aix-ld.c
@@ -0,0 +1,148 @@
+// General tests that ld invocations on AIX targets sane. Note that we use
+// sysroot to make these tests independent of the host system.
+
+// Check powerpc-ibm-aix7.1.0.0, 32-bit.
+// RUN: %clang -no-canonical-prefixes %s -### -o %t.o 2>&1 \
+// RUN: -target powerpc-ibm-aix7.1.0.0 \
+// RUN: --sysroot %S/Inputs/aix_ppc_tree \
+// RUN: | FileCheck --check-prefix=CHECK-LD32 %s
+// CHECK-LD32-NOT: warning:
+// CHECK-LD32: {{.*}}clang{{(.exe)?}}" "-cc1" "-triple" "powerpc-ibm-aix7.1.0.0"
+// CHECK-LD32: "-isysroot" "[[SYSROOT:[^"]+]]"
+// CHECK-LD32: "{{.*}}ld{{(.exe)?}}"
+// CHECK-LD32: "-e" "__start"
+// CHECK-LD32: "-bso"
+// CHECK-LD32: "-b32"
+// CHECK-LD32: "-bpT:0x10000000" "-bpD:0x20000000"
+// CHECK-LD32: "[[SYSROOT]]/usr/lib{{/|\\\\}}crt0.o"
+// CHECK-LD32: "-L[[SYSROOT]]/usr/lib"
+// CHECK-LD32: "-lc"
+
+// Check powerpc64-ibm-aix7.1.0.0, 64-bit.
+// RUN: %clang -no-canonical-prefixes %s -### -o %t.o 2>&1 \
+// RUN: -target powerpc64-ibm-aix7.1.0.0 \
+// RUN: --sysroot %S/Inputs/aix_ppc_tree \
+// RUN: | FileCheck --check-prefix=CHECK-LD64 %s
+// CHECK-LD64-NOT: warning:
+// CHECK-LD64: {{.*}}clang{{(.exe)?}}" "-cc1" "-triple" "powerpc64-ibm-aix7.1.0.0"
+// CHECK-LD64: "-isysroot" "[[SYSROOT:[^"]+]]"
+// CHECK-LD64: "{{.*}}ld{{(.exe)?}}"
+// CHECK-LD64: "-e" "__start"
+// CHECK-LD64: "-bso"
+// CHECK-LD64: "-b64"
+// CHECK-LD64: "-bpT:0x100000000" "-bpD:0x110000000"
+// CHECK-LD64: "[[SYSROOT]]/usr/lib{{/|\\\\}}crt0_64.o"
+// CHECK-LD64: "-L[[SYSROOT]]/usr/lib"
+// CHECK-LD64: "-lc"
+
+// Check powerpc-ibm-aix7.1.0.0, 32-bit. Enable POSIX thread support
+// RUN: %clang -no-canonical-prefixes %s -### -o %t.o 2>&1 \
+// RUN: -pthread \
+// RUN: -target powerpc-ibm-aix7.1.0.0 \
+// RUN: --sysroot %S/Inputs/aix_ppc_tree \
+// RUN: | FileCheck --check-prefix=CHECK-LD32-PTHREAD %s
+// CHECK-LD32-PTHREAD-NOT: warning:
+// CHECK-LD32-PTHREAD: {{.*}}clang{{(.exe)?}}" "-cc1" "-triple" "powerpc-ibm-aix7.1.0.0"
+// CHECK-LD32-PTHREAD: "-isysroot" "[[SYSROOT:[^"]+]]"
+// CHECK-LD32-PTHREAD: "{{.*}}ld{{(.exe)?}}"
+// CHECK-LD32-PTHREAD: "-e" "__start"
+// CHECK-LD32-PTHREAD: "-bso"
+// CHECK-LD32-PTHREAD: "-b32"
+// CHECK-LD32-PTHREAD: "-bpT:0x10000000" "-bpD:0x20000000"
+// CHECK-LD32-PTHREAD: "[[SYSROOT]]/usr/lib{{/|\\\\}}crt0.o"
+// CHECK-LD32-PTHREAD: "-L[[SYSROOT]]/usr/lib"
+// CHECK-LD32-PTHREAD: "-lpthreads"
+// CHECK-LD32-PTHREAD: "-lc"
+
+// Check powerpc-ibm-aix7.1.0.0, 64-bit. Enable POSIX thread support with aliased pthreads option
+// RUN: %clang -no-canonical-prefixes %s -### -o %t.o 2>&1 \
+// RUN: -pthreads \
+// RUN: -target powerpc64-ibm-aix7.1.0.0 \
+// RUN: --sysroot %S/Inputs/aix_ppc_tree \
+// RUN: | FileCheck --check-prefix=CHECK-LD64-PTHREAD %s
+// CHECK-LD64-PTHREAD-NOT: warning:
+// CHECK-LD64-PTHREAD: {{.*}}clang{{(.exe)?}}" "-cc1" "-triple" "powerpc64-ibm-aix7.1.0.0"
+// CHECK-LD64-PTHREAD: "-isysroot" "[[SYSROOT:[^"]+]]"
+// CHECK-LD64-PTHREAD: "{{.*}}ld{{(.exe)?}}"
+// CHECK-LD64-PTHREAD: "-e" "__start"
+// CHECK-LD64-PTHREAD: "-bso"
+// CHECK-LD64-PTHREAD: "-b64"
+// CHECK-LD64-PTHREAD: "-bpT:0x100000000" "-bpD:0x110000000"
+// CHECK-LD64-PTHREAD: "[[SYSROOT]]/usr/lib{{/|\\\\}}crt0_64.o"
+// CHECK-LD64-PTHREAD: "-L[[SYSROOT]]/usr/lib"
+// CHECK-LD64-PTHREAD: "-lpthreads"
+// CHECK-LD64-PTHREAD: "-lc"
+
+// Check powerpc-ibm-aix7.1.0.0, 32-bit. Enable profiling
+// RUN: %clang -no-canonical-prefixes %s -### -o %t.o 2>&1 \
+// RUN: -p \
+// RUN: -target powerpc-ibm-aix7.1.0.0 \
+// RUN: --sysroot %S/Inputs/aix_ppc_tree \
+// RUN: | FileCheck --check-prefix=CHECK-LD32-PROF %s
+// CHECK-LD32-PROF-NOT: warning:
+// CHECK-LD32-PROF: {{.*}}clang{{(.exe)?}}" "-cc1" "-triple" "powerpc-ibm-aix7.1.0.0"
+// CHECK-LD32-PROF: "-isysroot" "[[SYSROOT:[^"]+]]"
+// CHECK-LD32-PROF: "{{.*}}ld{{(.exe)?}}"
+// CHECK-LD32-PROF: "-e" "__start"
+// CHECK-LD32-PROF: "-bso"
+// CHECK-LD32-PROF: "-b32"
+// CHECK-LD32-PROF: "-bpT:0x10000000" "-bpD:0x20000000"
+// CHECK-LD32-PROF: "[[SYSROOT]]/usr/lib{{/|\\\\}}mcrt0.o"
+// CHECK-LD32-PROF: "-L[[SYSROOT]]/usr/lib"
+// CHECK-LD32-PROF: "-lc"
+
+// Check powerpc64-ibm-aix7.1.0.0, 64-bit. Enable g-profiling
+// RUN: %clang -no-canonical-prefixes %s -### -o %t.o 2>&1 \
+// RUN: -pg \
+// RUN: -target powerpc64-ibm-aix7.1.0.0 \
+// RUN: --sysroot %S/Inputs/aix_ppc_tree \
+// RUN: | FileCheck --check-prefix=CHECK-LD64-GPROF %s
+// CHECK-LD64-GPROF-NOT: warning:
+// CHECK-LD64-GPROF: {{.*}}clang{{(.exe)?}}" "-cc1" "-triple" "powerpc64-ibm-aix7.1.0.0"
+// CHECK-LD64-GPROF: "-isysroot" "[[SYSROOT:[^"]+]]"
+// CHECK-LD64-GPROF: "{{.*}}ld{{(.exe)?}}"
+// CHECK-LD64-GPROF: "-e" "__start"
+// CHECK-LD64-GPROF: "-bso"
+// CHECK-LD64-GPROF: "-b64"
+// CHECK-LD64-GPROF: "-bpT:0x100000000" "-bpD:0x110000000"
+// CHECK-LD64-GPROF: "[[SYSROOT]]/usr/lib{{/|\\\\}}gcrt0_64.o"
+// CHECK-LD64-GPROF: "-L[[SYSROOT]]/usr/lib"
+// CHECK-LD64-GPROF: "-lc"
+
+// Check powerpc-ibm-aix7.1.0.0, 32-bit. Static linking
+// RUN: %clang -no-canonical-prefixes %s -### -o %t.o 2>&1 \
+// RUN: -static \
+// RUN: -target powerpc-ibm-aix7.1.0.0 \
+// RUN: --sysroot %S/Inputs/aix_ppc_tree \
+// RUN: | FileCheck --check-prefix=CHECK-LD32-STATIC %s
+// CHECK-LD32-STATIC-NOT: warning:
+// CHECK-LD32-STATIC: {{.*}}clang{{(.exe)?}}" "-cc1" "-triple" "powerpc-ibm-aix7.1.0.0"
+// CHECK-LD32-STATIC: "-isysroot" "[[SYSROOT:[^"]+]]"
+// CHECK-LD32-STATIC: "{{.*}}ld{{(.exe)?}}"
+// CHECK-LD32-STATIC: "-e" "__start"
+// CHECK-LD32-STATIC: "-bnso"
+// CHECK-LD32-STATIC: "-b32"
+// CHECK-LD32-STATIC: "-bpT:0x10000000" "-bpD:0x20000000"
+// CHECK-LD32-STATIC: "[[SYSROOT]]/usr/lib{{/|\\\\}}crt0.o"
+// CHECK-LD32-STATIC: "-L[[SYSROOT]]/usr/lib"
+// CHECK-LD32-STATIC: "-lc"
+
+// Check powerpc-ibm-aix7.1.0.0, 32-bit. Library search path
+// RUN: %clang -no-canonical-prefixes %s -### -o %t.o 2>&1 \
+// RUN: -L%S/Inputs/aix_ppc_tree/gcc/powerpc-ibm-aix7.1.0.0/6.3.0 \
+// RUN: -target powerpc-ibm-aix7.1.0.0 \
+// RUN: --sysroot %S/Inputs/aix_ppc_tree \
+// RUN: | FileCheck --check-prefix=CHECK-LD32-LIBP %s
+// CHECK-LD32-LIBP-NOT: warning:
+// CHECK-LD32-LIBP: {{.*}}clang{{(.exe)?}}" "-cc1" "-triple" "powerpc-ibm-aix7.1.0.0"
+// CHECK-LD32-LIBP: "-isysroot" "[[SYSROOT:[^"]+]]"
+// CHECK-LD32-LIBP: "{{.*}}ld{{(.exe)?}}"
+// CHECK-LD32-LIBP: "-e" "__start"
+// CHECK-LD32-LIBP: "-bso"
+// CHECK-LD32-LIBP: "-b32"
+// CHECK-LD32-LIBP: "-bpT:0x10000000" "-bpD:0x20000000"
+// CHECK-LD32-LIBP: "[[SYSROOT]]/usr/lib{{/|\\\\}}crt0.o"
+// CHECK-LD32-LIBP: "-L[[SYSROOT]]/gcc/powerpc-ibm-aix7.1.0.0/6.3.0"
+// CHECK-LD32-LIBP: "-L[[SYSROOT]]/usr/lib"
+// CHECK-LD32-LIBP: "-lc"
+
Index: clang/lib/Driver/ToolChains/AIX.h
===================================================================
--- /dev/null
+++ clang/lib/Driver/ToolChains/AIX.h
@@ -0,0 +1,57 @@
+//===--- AIX.h - AIX 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
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_AIX_H
+#define LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_AIX_H
+
+#include "clang/Driver/Tool.h"
+#include "clang/Driver/ToolChain.h"
+
+namespace clang {
+namespace driver {
+namespace tools {
+
+/// aix -- Directly call system default assembler and linker
+namespace aix {
+
+class LLVM_LIBRARY_VISIBILITY Linker : public Tool {
+public:
+ Linker(const ToolChain &TC) : Tool("aix::Linker", "linker", TC) {}
+
+ bool hasIntegratedCPP() const override { return false; }
+ bool isLinkJob() const override { return true; }
+
+ void ConstructJob(Compilation &C, const JobAction &JA,
+ const InputInfo &Output, const InputInfoList &Inputs,
+ const llvm::opt::ArgList &TCArgs,
+ const char *LinkingOutput) const override;
+};
+} // end namespace aix
+} // end namespace tools
+
+namespace toolchains {
+
+class LLVM_LIBRARY_VISIBILITY AIX : public ToolChain {
+public:
+ AIX(const Driver &D, const llvm::Triple &Triple,
+ const llvm::opt::ArgList &Args);
+ ~AIX() override;
+
+ bool isPICDefault() const override { return true; }
+ bool isPIEDefault() const override { return false; }
+ bool isPICDefaultForced() const override { return true; }
+
+protected:
+ Tool *buildLinker() const override;
+};
+
+} // end namespace toolchains
+} // end namespace driver
+} // end namespace clang
+
+#endif // LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_AIX_H
Index: clang/lib/Driver/ToolChains/AIX.cpp
===================================================================
--- /dev/null
+++ clang/lib/Driver/ToolChains/AIX.cpp
@@ -0,0 +1,116 @@
+//===--- AIX.cpp - AIX 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 "AIX.h"
+#include "Arch/PPC.h"
+#include "CommonArgs.h"
+#include "clang/Driver/Compilation.h"
+#include "clang/Driver/Options.h"
+#include "clang/Driver/SanitizerArgs.h"
+#include "llvm/Option/ArgList.h"
+
+using namespace clang::driver;
+using namespace clang::driver::tools;
+using namespace clang::driver::toolchains;
+using namespace clang;
+using namespace llvm::opt;
+
+void aix::Linker::ConstructJob(Compilation &C, const JobAction &JA,
+ const InputInfo &Output,
+ const InputInfoList &Inputs,
+ const ArgList &Args,
+ const char *LinkingOutput) const {
+ const toolchains::AIX &ToolChain =
+ static_cast<const toolchains::AIX &>(getToolChain());
+ ArgStringList CmdArgs;
+
+ const bool IsArch32Bit = ToolChain.getTriple().isArch32Bit();
+ const bool IsArch64Bit = ToolChain.getTriple().isArch64Bit();
+ // Only support 32 and 64 bit
+ if (!IsArch32Bit && !IsArch64Bit)
+ llvm_unreachable("Unsupported bit width value");
+
+ if (!Args.hasArg(options::OPT_nostdlib)) {
+ CmdArgs.push_back("-e");
+ CmdArgs.push_back("__start");
+ }
+
+ // Link in dynamic mode by default, unless "-static" is present
+ if (Args.hasArg(options::OPT_static))
+ CmdArgs.push_back("-bnso");
+ else
+ CmdArgs.push_back("-bso");
+
+ // Specify linker output file
+ if (Output.isFilename()) {
+ CmdArgs.push_back("-o");
+ CmdArgs.push_back(Output.getFilename());
+ } else {
+ assert(Output.isNothing() && "Invalid output.");
+ }
+
+ // Set linking mode (i.e. 32/64-bit) and the address of
+ // text and data sections based on arch bit width
+ if (IsArch32Bit) {
+ CmdArgs.push_back("-b32");
+ CmdArgs.push_back("-bpT:0x10000000");
+ CmdArgs.push_back("-bpD:0x20000000");
+ } else {
+ // Must be 64-bit, otherwise asserted already
+ CmdArgs.push_back("-b64");
+ CmdArgs.push_back("-bpT:0x100000000");
+ CmdArgs.push_back("-bpD:0x110000000");
+ }
+
+ if (!Args.hasArg(options::OPT_nostdlib)) {
+ const char *crt0 = nullptr;
+ // Enable gprofiling when "-pg" is specified
+ if (Args.hasArg(options::OPT_pg))
+ crt0 = IsArch32Bit ? "gcrt0.o" : "gcrt0_64.o";
+ // Enable profiling when "-p" is specified
+ else if (Args.hasArg(options::OPT_p))
+ crt0 = IsArch32Bit ? "mcrt0.o" : "mcrt0_64.o";
+ else
+ crt0 = IsArch32Bit ? "crt0.o" : "crt0_64.o";
+
+ if (crt0)
+ CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath(crt0)));
+ }
+
+ // Specify linker input file(s)
+ AddLinkerInputs(ToolChain, Inputs, Args, CmdArgs, JA);
+
+ // Add directory to library search path
+ Args.AddAllArgs(CmdArgs, options::OPT_L);
+ ToolChain.AddFilePathLibArgs(Args, CmdArgs);
+
+ if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs)) {
+ // Support POSIX threads if "-pthreads" or
+ // "-pthread" is present
+ if (Args.hasArg(options::OPT_pthreads, options::OPT_pthread))
+ CmdArgs.push_back("-lpthreads");
+
+ CmdArgs.push_back("-lc");
+ }
+
+ const char *Exec = Args.MakeArgString(ToolChain.GetLinkerPath());
+ C.addCommand(std::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs));
+}
+
+/// AIX - AIX tool chain which can call as(1) and ld(1) directly.
+AIX::AIX(const Driver &D, const llvm::Triple &Triple,
+ const ArgList &Args)
+ : ToolChain(D, Triple, Args) {
+ getFilePaths().push_back(getDriver().SysRoot + "/usr/lib");
+}
+
+AIX::~AIX() {}
+
+Tool *AIX::buildLinker() const {
+ return new tools::aix::Linker(*this);
+}
Index: clang/lib/Driver/Driver.cpp
===================================================================
--- clang/lib/Driver/Driver.cpp
+++ clang/lib/Driver/Driver.cpp
@@ -8,6 +8,7 @@
#include "clang/Driver/Driver.h"
#include "InputInfo.h"
+#include "ToolChains/AIX.h"
#include "ToolChains/AMDGPU.h"
#include "ToolChains/AVR.h"
#include "ToolChains/Ananas.h"
@@ -4612,6 +4613,9 @@
auto &TC = ToolChains[Target.str()];
if (!TC) {
switch (Target.getOS()) {
+ case llvm::Triple::AIX:
+ TC = std::make_unique<toolchains::AIX>(*this, Target, Args);
+ break;
case llvm::Triple::Haiku:
TC = std::make_unique<toolchains::Haiku>(*this, Target, Args);
break;
Index: clang/lib/Driver/CMakeLists.txt
===================================================================
--- clang/lib/Driver/CMakeLists.txt
+++ clang/lib/Driver/CMakeLists.txt
@@ -30,6 +30,7 @@
ToolChains/Arch/Sparc.cpp
ToolChains/Arch/SystemZ.cpp
ToolChains/Arch/X86.cpp
+ ToolChains/AIX.cpp
ToolChains/Ananas.cpp
ToolChains/AMDGPU.cpp
ToolChains/AVR.cpp
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