[clang] [llvm] [llvm] Add triples for managarm (PR #87845)
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Fri Apr 5 17:05:40 PDT 2024
llvmbot wrote:
<!--LLVM PR SUMMARY COMMENT-->
@llvm/pr-subscribers-llvm-adt
Author: no92 (no92)
<details>
<summary>Changes</summary>
This PR aims to add a target for [managarm](https://github.com/managarm/managarm). The targets `{x86_64,aarch64,riscv64}-pc-managarm-{kernel,system}` are enabled by this PR and have been tested to work on managarm.
---
Patch is 23.53 KiB, truncated to 20.00 KiB below, full version: https://github.com/llvm/llvm-project/pull/87845.diff
12 Files Affected:
- (modified) clang/lib/Basic/Targets.cpp (+9)
- (modified) clang/lib/Basic/Targets/OSTargets.h (+30)
- (modified) clang/lib/Driver/CMakeLists.txt (+1)
- (modified) clang/lib/Driver/Driver.cpp (+4)
- (modified) clang/lib/Driver/ToolChains/Gnu.cpp (+10-3)
- (added) clang/lib/Driver/ToolChains/Managarm.cpp (+230)
- (added) clang/lib/Driver/ToolChains/Managarm.h (+54)
- (modified) llvm/include/llvm/ADT/bit.h (+1-1)
- (modified) llvm/include/llvm/TargetParser/Triple.h (+4-1)
- (modified) llvm/lib/Support/Unix/Path.inc (+8-5)
- (modified) llvm/lib/TargetParser/Triple.cpp (+6)
- (modified) llvm/unittests/TargetParser/TripleTest.cpp (+24)
``````````diff
diff --git a/clang/lib/Basic/Targets.cpp b/clang/lib/Basic/Targets.cpp
index e3283510c6aac7..356b1888aca80d 100644
--- a/clang/lib/Basic/Targets.cpp
+++ b/clang/lib/Basic/Targets.cpp
@@ -160,6 +160,9 @@ std::unique_ptr<TargetInfo> AllocateTarget(const llvm::Triple &Triple,
return std::make_unique<OHOSTargetInfo<AArch64leTargetInfo>>(Triple,
Opts);
}
+ case llvm::Triple::Managarm:
+ return std::make_unique<ManagarmTargetInfo<AArch64leTargetInfo>>(Triple,
+ Opts);
case llvm::Triple::NetBSD:
return std::make_unique<NetBSDTargetInfo<AArch64leTargetInfo>>(Triple,
Opts);
@@ -463,6 +466,9 @@ std::unique_ptr<TargetInfo> AllocateTarget(const llvm::Triple &Triple,
return std::make_unique<OHOSTargetInfo<RISCV64TargetInfo>>(Triple,
Opts);
}
+ case llvm::Triple::Managarm:
+ return std::make_unique<ManagarmTargetInfo<RISCV64TargetInfo>>(Triple,
+ Opts);
default:
return std::make_unique<RISCV64TargetInfo>(Triple, Opts);
}
@@ -646,6 +652,9 @@ std::unique_ptr<TargetInfo> AllocateTarget(const llvm::Triple &Triple,
return std::make_unique<PS5OSTargetInfo<X86_64TargetInfo>>(Triple, Opts);
case llvm::Triple::Hurd:
return std::make_unique<HurdTargetInfo<X86_64TargetInfo>>(Triple, Opts);
+ case llvm::Triple::Managarm:
+ return std::make_unique<ManagarmTargetInfo<X86_64TargetInfo>>(Triple,
+ Opts);
default:
return std::make_unique<X86_64TargetInfo>(Triple, Opts);
}
diff --git a/clang/lib/Basic/Targets/OSTargets.h b/clang/lib/Basic/Targets/OSTargets.h
index 4366c1149e4053..7e966ec32b911b 100644
--- a/clang/lib/Basic/Targets/OSTargets.h
+++ b/clang/lib/Basic/Targets/OSTargets.h
@@ -369,6 +369,36 @@ class LLVM_LIBRARY_VISIBILITY LinuxTargetInfo : public OSTargetInfo<Target> {
}
};
+// Managarm Target
+template <typename Target>
+class LLVM_LIBRARY_VISIBILITY ManagarmTargetInfo : public OSTargetInfo<Target> {
+protected:
+ void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple,
+ MacroBuilder &Builder) const override {
+ Builder.defineMacro("__managarm__");
+ Builder.defineMacro("__ELF__");
+ if (Opts.POSIXThreads)
+ Builder.defineMacro("_REENTRANT");
+ if (Opts.CPlusPlus)
+ Builder.defineMacro("_GNU_SOURCE");
+ if (this->HasFloat128)
+ Builder.defineMacro("__FLOAT128__");
+ }
+
+public:
+ ManagarmTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts)
+ : OSTargetInfo<Target>(Triple, Opts) {
+ switch (Triple.getArch()) {
+ default:
+ break;
+ case llvm::Triple::x86:
+ case llvm::Triple::x86_64:
+ this->HasFloat128 = true;
+ break;
+ }
+ }
+};
+
// NetBSD Target
template <typename Target>
class LLVM_LIBRARY_VISIBILITY NetBSDTargetInfo : public OSTargetInfo<Target> {
diff --git a/clang/lib/Driver/CMakeLists.txt b/clang/lib/Driver/CMakeLists.txt
index 58427e3f83c420..afdf39ed6fb61a 100644
--- a/clang/lib/Driver/CMakeLists.txt
+++ b/clang/lib/Driver/CMakeLists.txt
@@ -65,6 +65,7 @@ add_clang_library(clangDriver
ToolChains/HLSL.cpp
ToolChains/Hurd.cpp
ToolChains/Linux.cpp
+ ToolChains/Managarm.cpp
ToolChains/MipsLinux.cpp
ToolChains/MinGW.cpp
ToolChains/MSP430.cpp
diff --git a/clang/lib/Driver/Driver.cpp b/clang/lib/Driver/Driver.cpp
index e7335a61b10c53..d5203c21c10e2d 100644
--- a/clang/lib/Driver/Driver.cpp
+++ b/clang/lib/Driver/Driver.cpp
@@ -32,6 +32,7 @@
#include "ToolChains/Linux.h"
#include "ToolChains/MSP430.h"
#include "ToolChains/MSVC.h"
+#include "ToolChains/Managarm.h"
#include "ToolChains/MinGW.h"
#include "ToolChains/MipsLinux.h"
#include "ToolChains/NaCl.h"
@@ -6351,6 +6352,9 @@ const ToolChain &Driver::getToolChain(const ArgList &Args,
case llvm::Triple::Fuchsia:
TC = std::make_unique<toolchains::Fuchsia>(*this, Target, Args);
break;
+ case llvm::Triple::Managarm:
+ TC = std::make_unique<toolchains::Managarm>(*this, Target, Args);
+ break;
case llvm::Triple::Solaris:
TC = std::make_unique<toolchains::Solaris>(*this, Target, Args);
break;
diff --git a/clang/lib/Driver/ToolChains/Gnu.cpp b/clang/lib/Driver/ToolChains/Gnu.cpp
index dedbfac6cb25d2..d75df71e164e7b 100644
--- a/clang/lib/Driver/ToolChains/Gnu.cpp
+++ b/clang/lib/Driver/ToolChains/Gnu.cpp
@@ -228,6 +228,8 @@ static const char *getLDMOption(const llvm::Triple &T, const ArgList &Args) {
return "elf_iamcu";
return "elf_i386";
case llvm::Triple::aarch64:
+ if (T.getOS() == llvm::Triple::Managarm)
+ return "aarch64managarm";
return "aarch64linux";
case llvm::Triple::aarch64_be:
return "aarch64linuxb";
@@ -2456,7 +2458,8 @@ void Generic_GCC::GCCInstallationDetector::AddDefaultGCCPrefixes(
static const char *const AArch64LibDirs[] = {"/lib64", "/lib"};
static const char *const AArch64Triples[] = {
"aarch64-none-linux-gnu", "aarch64-linux-gnu", "aarch64-redhat-linux",
- "aarch64-suse-linux"};
+ "aarch64-suse-linux", "aarch64-managarm", "aarch64-managarm-mlibc",
+ "aarch64-managarm-kernel"};
static const char *const AArch64beLibDirs[] = {"/lib"};
static const char *const AArch64beTriples[] = {"aarch64_be-none-linux-gnu",
"aarch64_be-linux-gnu"};
@@ -2486,7 +2489,8 @@ void Generic_GCC::GCCInstallationDetector::AddDefaultGCCPrefixes(
"x86_64-redhat-linux", "x86_64-suse-linux",
"x86_64-manbo-linux-gnu", "x86_64-linux-gnu",
"x86_64-slackware-linux", "x86_64-unknown-linux",
- "x86_64-amazon-linux"};
+ "x86_64-amazon-linux", "x86_64-managarm",
+ "x86_64-managarm-mlibc", "x86_64-managarm-kernel"};
static const char *const X32Triples[] = {"x86_64-linux-gnux32",
"x86_64-pc-linux-gnux32"};
static const char *const X32LibDirs[] = {"/libx32", "/lib"};
@@ -2562,7 +2566,10 @@ void Generic_GCC::GCCInstallationDetector::AddDefaultGCCPrefixes(
static const char *const RISCV64LibDirs[] = {"/lib64", "/lib"};
static const char *const RISCV64Triples[] = {"riscv64-unknown-linux-gnu",
"riscv64-linux-gnu",
- "riscv64-unknown-elf"};
+ "riscv64-unknown-elf",
+ "riscv64-managarm",
+ "riscv64-managarm-kernel",
+ "riscv64-managarm-mlibc"};
static const char *const SPARCv8LibDirs[] = {"/lib32", "/lib"};
static const char *const SPARCv8Triples[] = {"sparc-linux-gnu",
diff --git a/clang/lib/Driver/ToolChains/Managarm.cpp b/clang/lib/Driver/ToolChains/Managarm.cpp
new file mode 100644
index 00000000000000..044822e4407a15
--- /dev/null
+++ b/clang/lib/Driver/ToolChains/Managarm.cpp
@@ -0,0 +1,230 @@
+//===--- Managarm.h - Managarm ToolChain Implementations --------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "Managarm.h"
+#include "Arch/ARM.h"
+#include "Arch/Mips.h"
+#include "Arch/PPC.h"
+#include "Arch/RISCV.h"
+#include "CommonArgs.h"
+#include "clang/Config/config.h"
+#include "clang/Driver/Distro.h"
+#include "clang/Driver/Driver.h"
+#include "clang/Driver/Options.h"
+#include "clang/Driver/SanitizerArgs.h"
+#include "llvm/Option/ArgList.h"
+#include "llvm/ProfileData/InstrProf.h"
+#include "llvm/Support/Path.h"
+#include <system_error>
+
+using namespace clang::driver;
+using namespace clang::driver::toolchains;
+using namespace clang;
+using namespace llvm::opt;
+
+using tools::addPathIfExists;
+
+/// \brief Get our best guess at the multiarch triple for a target.
+std::string Managarm::getMultiarchTriple(const Driver &D,
+ const llvm::Triple &TargetTriple,
+ StringRef SysRoot) const {
+ // For most architectures, just use whatever we have rather than trying to be
+ // clever.
+ switch (TargetTriple.getArch()) {
+ default:
+ break;
+
+ case llvm::Triple::x86_64:
+ // We don't want this for x32, otherwise it will match x86_64 libs
+ return "x86_64-managarm";
+ case llvm::Triple::aarch64:
+ return "aarch64-managarm";
+ case llvm::Triple::riscv64:
+ return "riscv64-managarm";
+ }
+ return TargetTriple.str();
+}
+
+static StringRef getOSLibDir(const llvm::Triple &Triple, const ArgList &Args) {
+ // It happens that only x86, PPC and SPARC use the 'lib32' variant of
+ // oslibdir, and using that variant while targeting other architectures causes
+ // problems because the libraries are laid out in shared system roots that
+ // can't cope with a 'lib32' library search path being considered. So we only
+ // enable them when we know we may need it.
+ //
+ // FIXME: This is a bit of a hack. We should really unify this code for
+ // reasoning about oslibdir spellings with the lib dir spellings in the
+ // GCCInstallationDetector, but that is a more significant refactoring.
+ if (Triple.getArch() == llvm::Triple::x86 || Triple.isPPC32() ||
+ Triple.getArch() == llvm::Triple::sparc)
+ return "lib32";
+
+ if (Triple.getArch() == llvm::Triple::x86_64 && Triple.isX32())
+ return "libx32";
+
+ if (Triple.getArch() == llvm::Triple::riscv32)
+ return "lib32";
+
+ return Triple.isArch32Bit() ? "lib" : "lib64";
+}
+
+Managarm::Managarm(const Driver &D, const llvm::Triple &Triple,
+ const ArgList &Args)
+ : Generic_ELF(D, Triple, Args) {
+ GCCInstallation.init(Triple, Args);
+ Multilibs = GCCInstallation.getMultilibs();
+ SelectedMultilibs.assign({GCCInstallation.getMultilib()});
+ std::string SysRoot = computeSysRoot();
+
+ ToolChain::path_list &PPaths = getProgramPaths();
+ Generic_GCC::PushPPaths(PPaths);
+
+#ifdef ENABLE_LINKER_BUILD_ID
+ ExtraOpts.push_back("--build-id");
+#endif
+
+ // The selection of paths to try here is designed to match the patterns which
+ // the GCC driver itself uses, as this is part of the GCC-compatible driver.
+ // This was determined by running GCC in a fake filesystem, creating all
+ // possible permutations of these directories, and seeing which ones it added
+ // to the link paths.
+ path_list &Paths = getFilePaths();
+
+ const std::string OSLibDir = std::string(getOSLibDir(Triple, Args));
+ const std::string MultiarchTriple = getMultiarchTriple(D, Triple, SysRoot);
+
+ Generic_GCC::AddMultilibPaths(D, SysRoot, OSLibDir, MultiarchTriple, Paths);
+
+ addPathIfExists(D, concat(SysRoot, "/lib", MultiarchTriple), Paths);
+ addPathIfExists(D, concat(SysRoot, "/lib/..", OSLibDir), Paths);
+ addPathIfExists(D, concat(SysRoot, "/usr/lib/", MultiarchTriple), Paths);
+ addPathIfExists(D, concat(SysRoot, "/usr/lib/../", OSLibDir), Paths);
+
+ Generic_GCC::AddMultiarchPaths(D, SysRoot, OSLibDir, Paths);
+
+ addPathIfExists(D, SysRoot + "/lib", Paths);
+ addPathIfExists(D, SysRoot + "/usr/lib", Paths);
+}
+
+bool Managarm::HasNativeLLVMSupport() const { return true; }
+
+Tool *Managarm::buildLinker() const {
+ return new tools::gnutools::Linker(*this);
+}
+
+Tool *Managarm::buildAssembler() const {
+ return new tools::gnutools::Assembler(*this);
+}
+
+std::string Managarm::computeSysRoot() const {
+ if (!getDriver().SysRoot.empty())
+ return getDriver().SysRoot;
+ return std::string();
+}
+
+std::string Managarm::getDynamicLinker(const ArgList &Args) const {
+ switch (getTriple().getArch()) {
+ case llvm::Triple::aarch64:
+ return "/lib/aarch64-managarm/ld.so";
+ case llvm::Triple::riscv64: {
+ StringRef ABIName = tools::riscv::getRISCVABI(Args, getTriple());
+ return ("/lib/riscv64-managarm/ld-riscv64-" + ABIName + ".so").str();
+ }
+ case llvm::Triple::x86_64:
+ return "/lib/x86_64-managarm/ld.so";
+ default:
+ llvm_unreachable("unsupported architecture");
+ }
+}
+
+void Managarm::AddClangSystemIncludeArgs(const ArgList &DriverArgs,
+ ArgStringList &CC1Args) const {
+ const Driver &D = getDriver();
+ std::string SysRoot = computeSysRoot();
+
+ if (DriverArgs.hasArg(clang::driver::options::OPT_nostdinc))
+ return;
+
+ if (!DriverArgs.hasArg(options::OPT_nostdlibinc))
+ return;
+
+ addSystemInclude(DriverArgs, CC1Args, SysRoot + "/usr/local/include");
+
+ 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;
+
+ // LOCAL_INCLUDE_DIR
+ addSystemInclude(DriverArgs, CC1Args, concat(SysRoot, "/usr/local/include"));
+ // TOOL_INCLUDE_DIR
+ AddMultilibIncludeArgs(DriverArgs, CC1Args);
+
+ // Check for configure-time C include directories.
+ StringRef CIncludeDirs(C_INCLUDE_DIRS);
+ if (CIncludeDirs != "") {
+ SmallVector<StringRef, 5> dirs;
+ CIncludeDirs.split(dirs, ":");
+ for (StringRef dir : dirs) {
+ StringRef Prefix =
+ llvm::sys::path::is_absolute(dir) ? StringRef(SysRoot) : "";
+ addExternCSystemInclude(DriverArgs, CC1Args, Prefix + dir);
+ }
+ return;
+ }
+
+ // On systems using multiarch and Android, add /usr/include/$triple before
+ // /usr/include.
+ std::string MultiarchIncludeDir = getMultiarchTriple(D, getTriple(), SysRoot);
+ if (!MultiarchIncludeDir.empty() &&
+ D.getVFS().exists(concat(SysRoot, "/usr/include", MultiarchIncludeDir)))
+ addExternCSystemInclude(
+ DriverArgs, CC1Args,
+ concat(SysRoot, "/usr/include", MultiarchIncludeDir));
+
+ // Add an include of '/include' directly. This isn't provided by default by
+ // system GCCs, but is often used with cross-compiling GCCs, and harmless to
+ // add even when Clang is acting as-if it were a system compiler.
+ addExternCSystemInclude(DriverArgs, CC1Args, concat(SysRoot, "/include"));
+
+ addExternCSystemInclude(DriverArgs, CC1Args, concat(SysRoot, "/usr/include"));
+}
+
+void Managarm::addLibStdCxxIncludePaths(
+ const llvm::opt::ArgList &DriverArgs,
+ llvm::opt::ArgStringList &CC1Args) const {
+ // We need a detected GCC installation on Managarm to provide libstdc++'s
+ // headers.
+ if (!GCCInstallation.isValid())
+ return;
+
+ StringRef TripleStr = GCCInstallation.getTriple().str();
+
+ // Try generic GCC detection.
+ Generic_GCC::addGCCLibStdCxxIncludePaths(DriverArgs, CC1Args, TripleStr);
+}
+
+SanitizerMask Managarm::getSupportedSanitizers() const {
+ const bool IsX86 = getTriple().getArch() == llvm::Triple::x86;
+ const bool IsX86_64 = getTriple().getArch() == llvm::Triple::x86_64;
+ SanitizerMask Res = ToolChain::getSupportedSanitizers();
+ Res |= SanitizerKind::PointerCompare;
+ Res |= SanitizerKind::PointerSubtract;
+ Res |= SanitizerKind::KernelAddress;
+ Res |= SanitizerKind::Vptr;
+ if (IsX86_64)
+ Res |= SanitizerKind::KernelMemory;
+ if (IsX86 || IsX86_64)
+ Res |= SanitizerKind::Function;
+ return Res;
+}
diff --git a/clang/lib/Driver/ToolChains/Managarm.h b/clang/lib/Driver/ToolChains/Managarm.h
new file mode 100644
index 00000000000000..003ba6f8495c51
--- /dev/null
+++ b/clang/lib/Driver/ToolChains/Managarm.h
@@ -0,0 +1,54 @@
+//===--- Managarm.h - Managarm ToolChain Implementations --------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_MANAGARM_H
+#define LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_MANAGARM_H
+
+#include "Gnu.h"
+#include "clang/Driver/ToolChain.h"
+
+namespace clang {
+namespace driver {
+namespace toolchains {
+
+class LLVM_LIBRARY_VISIBILITY Managarm : public Generic_ELF {
+public:
+ Managarm(const Driver &D, const llvm::Triple &Triple,
+ const llvm::opt::ArgList &Args);
+
+ bool HasNativeLLVMSupport() const override;
+
+ std::string getMultiarchTriple(const Driver &D,
+ const llvm::Triple &TargetTriple,
+ StringRef SysRoot) const override;
+
+ void
+ AddClangSystemIncludeArgs(const llvm::opt::ArgList &DriverArgs,
+ llvm::opt::ArgStringList &CC1Args) const override;
+ void
+ addLibStdCxxIncludePaths(const llvm::opt::ArgList &DriverArgs,
+ llvm::opt::ArgStringList &CC1Args) const override;
+ SanitizerMask getSupportedSanitizers() const override;
+ virtual std::string computeSysRoot() const override;
+
+ virtual std::string
+ getDynamicLinker(const llvm::opt::ArgList &Args) const override;
+
+ std::vector<std::string> ExtraOpts;
+
+protected:
+ Tool *buildAssembler() const override;
+ Tool *buildLinker() const override;
+};
+
+} // end namespace toolchains
+} // end namespace driver
+} // end namespace clang
+
+#endif // LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_MANAGARM_H
diff --git a/llvm/include/llvm/ADT/bit.h b/llvm/include/llvm/ADT/bit.h
index c42b5e686bdc9c..7a36ef2eb5163d 100644
--- a/llvm/include/llvm/ADT/bit.h
+++ b/llvm/include/llvm/ADT/bit.h
@@ -29,7 +29,7 @@
#if defined(__linux__) || defined(__GNU__) || defined(__HAIKU__) || \
defined(__Fuchsia__) || defined(__EMSCRIPTEN__) || defined(__NetBSD__) || \
- defined(__OpenBSD__) || defined(__DragonFly__)
+ defined(__OpenBSD__) || defined(__DragonFly__) || defined(__managarm__)
#include <endian.h>
#elif defined(_AIX)
#include <sys/machine.h>
diff --git a/llvm/include/llvm/TargetParser/Triple.h b/llvm/include/llvm/TargetParser/Triple.h
index f256e2b205a889..0babe558e35305 100644
--- a/llvm/include/llvm/TargetParser/Triple.h
+++ b/llvm/include/llvm/TargetParser/Triple.h
@@ -196,6 +196,7 @@ class Triple {
Linux,
Lv2, // PS3
MacOSX,
+ Managarm,
NetBSD,
OpenBSD,
Solaris,
@@ -279,8 +280,10 @@ class Triple {
Amplification,
OpenCL,
OpenHOS,
+ Kernel,
+ Mlibc,
- LastEnvironmentType = OpenHOS
+ LastEnvironmentType = Mlibc
};
enum ObjectFormatType {
UnknownObjectFormat,
diff --git a/llvm/lib/Support/Unix/Path.inc b/llvm/lib/Support/Unix/Path.inc
index 968e2c459f3fb1..614763b2c4f0b5 100644
--- a/llvm/lib/Support/Unix/Path.inc
+++ b/llvm/lib/Support/Unix/Path.inc
@@ -74,7 +74,8 @@ extern char **environ;
#include <sys/types.h>
#if !defined(__APPLE__) && !defined(__OpenBSD__) && !defined(__FreeBSD__) && \
- !defined(__linux__) && !defined(__FreeBSD_kernel__) && !defined(_AIX)
+ !defined(__linux__) && !defined(__FreeBSD_kernel__) && !defined(_AIX) && \
+ !defined(__managarm__)
#include <sys/statvfs.h>
#define STATVFS statvfs
#define FSTATVFS fstatvfs
@@ -83,7 +84,7 @@ extern char **environ;
#if defined(__OpenBSD__) || defined(__FreeBSD__)
#include <sys/mount.h>
#include <sys/param.h>
-#elif defined(__linux__)
+#elif defined(__linux__) || defined(__managarm__)
#if defined(HAVE_LINUX_MAGIC_H)
#include <linux/magic.h>
#else
@@ -129,7 +130,8 @@ const file_t kInvalidFile = -1;
#if defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__) || \
defined(__FreeBSD_kernel__) || defined(__linux__) || defined(__CYGWIN__) || \
defined(__DragonFly__) || defined(_AIX) || defined(__GNU__) || \
- (defined(__sun__) && defined(__svr4__) || defined(__HAIKU__))
+ (defined(__sun__) && defined(__svr4__) || defined(__HAIKU__)) || \
+ defined(__managarm__)
static int test_dir(char ret[PATH_MAX], const char *dir, const char *bin) {
struct stat sb;
char fullpath[PATH_MAX];
@@ -250,7 +252,8 @@ std::string getMainExecutable(const char *argv0, void *MainAddr) {
...
[truncated]
``````````
</details>
https://github.com/llvm/llvm-project/pull/87845
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