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ldc: Add support for GNU/Hurd #5115

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8b7d62e
ldc: Add support for GNU/Hurd
yelninei Apr 13, 2026
17990a1
[REMOVEME]: Update target.h
yelninei Apr 18, 2026
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5 changes: 3 additions & 2 deletions dmd/target.h
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Expand Up @@ -137,10 +137,11 @@ struct Target
OS_FreeBSD = 0x10,
OS_Solaris = 0x20,
OS_DragonFlyBSD = 0x40,
OS_Hurd = 0x80,

// Combination masks
all = OS_linux | OS_Windows | OS_OSX | OS_OpenBSD | OS_FreeBSD | OS_Solaris | OS_DragonFlyBSD,
Posix = OS_linux | OS_OSX | OS_OpenBSD | OS_FreeBSD | OS_Solaris | OS_DragonFlyBSD,
all = OS_linux | OS_Windows | OS_OSX | OS_OpenBSD | OS_FreeBSD | OS_Solaris | OS_DragonFlyBSD | OS_Hurd,
Posix = OS_linux | OS_OSX | OS_OpenBSD | OS_FreeBSD | OS_Solaris | OS_DragonFlyBSD | OS_Hurd,
};

OS os;
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5 changes: 4 additions & 1 deletion driver/linker-gcc.cpp
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Expand Up @@ -200,7 +200,8 @@ void ArgsBuilder::addLTOLinkFlags() {
global.params.targetTriple->isOSFreeBSD() ||
global.params.targetTriple->isOSNetBSD() ||
global.params.targetTriple->isOSOpenBSD() ||
global.params.targetTriple->isOSDragonFly()) {
global.params.targetTriple->isOSDragonFly() ||
global.params.targetTriple->isOSHurd()) {
// LLD supports LLVM LTO natively, do not add the plugin itself.
// Otherwise, assume that ld.gold or ld.bfd is used with plugin support.
addLTOGoldPluginFlags(!isLld);
Expand Down Expand Up @@ -435,6 +436,7 @@ void ArgsBuilder::addCppStdlibLinkFlags(const llvm::Triple &triple) {
case llvm::Triple::NetBSD:
case llvm::Triple::OpenBSD:
case llvm::Triple::DragonFly:
case llvm::Triple::Hurd:
args.push_back("-lstdc++");
break;
case llvm::Triple::Darwin:
Expand Down Expand Up @@ -689,6 +691,7 @@ void ArgsBuilder::addDefaultPlatformLibs() {
case llvm::Triple::NetBSD:
case llvm::Triple::OpenBSD:
case llvm::Triple::DragonFly:
case llvm::Triple::Hurd:
addSoname = true;
args.push_back("-lpthread");
args.push_back("-lm");
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7 changes: 7 additions & 0 deletions driver/main.cpp
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Expand Up @@ -918,6 +918,13 @@ void registerPredefinedTargetVersions() {
VersionCondition::addPredefinedGlobalIdent("CppRuntime_LLVM");
VersionCondition::addPredefinedGlobalIdent("CppRuntime_Clang"); // legacy
break;
case llvm::Triple::Hurd:
VersionCondition::addPredefinedGlobalIdent("Hurd");
VersionCondition::addPredefinedGlobalIdent("Posix");
VersionCondition::addPredefinedGlobalIdent("CRuntime_Glibc");
VersionCondition::addPredefinedGlobalIdent("CppRuntime_GNU");
VersionCondition::addPredefinedGlobalIdent("CppRuntime_Gcc"); // legacy
break;
default:
if (triple.getEnvironment() == llvm::Triple::Android) {
VersionCondition::addPredefinedGlobalIdent("Android");
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2 changes: 1 addition & 1 deletion gen/modules.cpp
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Expand Up @@ -104,7 +104,7 @@ RegistryStyle getModuleRegistryStyle() {
if (t.isOSWindows() || t.getEnvironment() == llvm::Triple::Android ||
t.isOSBinFormatWasm() || t.isOSDarwin() || t.isOSLinux() ||
t.isOSFreeBSD() || t.isOSNetBSD() || t.isOSOpenBSD() ||
t.isOSDragonFly()) {
t.isOSDragonFly() || t.isOSHurd()) {
return RegistryStyle::section;
}

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2 changes: 2 additions & 0 deletions gen/target.cpp
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Expand Up @@ -149,6 +149,8 @@ void Target::_init(const Param &params) {
os = OS_DragonFlyBSD;
} else if (triple.isOSSolaris()) {
os = OS_Solaris;
} else if (triple.isOSHurd()) {
os = OS_Hurd;
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} else {
os = OS_Freestanding;
}
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11 changes: 7 additions & 4 deletions runtime/CMakeLists.txt
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Expand Up @@ -94,7 +94,7 @@ else()
endif()

set(SHARED_LIBS_SUPPORTED OFF)
if("${TARGET_SYSTEM}" MATCHES "Windows|Linux|FreeBSD|DragonFly|APPLE")
if("${TARGET_SYSTEM}" MATCHES "Windows|Linux|FreeBSD|DragonFly|APPLE|GNU")
set(SHARED_LIBS_SUPPORTED ON)
endif()

Expand Down Expand Up @@ -175,6 +175,7 @@ file(GLOB_RECURSE DRUNTIME_D_BIONIC ${RUNTIME_DIR}/src/core/sys/bionic/*.d)
file(GLOB_RECURSE DRUNTIME_D_DARWIN ${RUNTIME_DIR}/src/core/sys/darwin/*.d)
file(GLOB_RECURSE DRUNTIME_D_DRAGONFLYBSD ${RUNTIME_DIR}/src/core/sys/dragonflybsd/*.d)
file(GLOB_RECURSE DRUNTIME_D_FREEBSD ${RUNTIME_DIR}/src/core/sys/freebsd/*.d)
file(GLOB_RECURSE DRUNTIME_D_HURD ${RUNTIME_DIR}/src/core/sys/hurd/*.d)
file(GLOB_RECURSE DRUNTIME_D_LINUX ${RUNTIME_DIR}/src/core/sys/linux/*.d)
file(GLOB_RECURSE DRUNTIME_D_NETBSD ${RUNTIME_DIR}/src/core/sys/netbsd/*.d)
file(GLOB_RECURSE DRUNTIME_D_OPENBSD ${RUNTIME_DIR}/src/core/sys/openbsd/*.d)
Expand All @@ -183,9 +184,9 @@ file(GLOB_RECURSE DRUNTIME_D_SOLARIS ${RUNTIME_DIR}/src/core/sys/solaris/*.d)
file(GLOB_RECURSE DRUNTIME_D_WINDOWS ${RUNTIME_DIR}/src/core/sys/windows/*.d)
list(REMOVE_ITEM DRUNTIME_D
${DRUNTIME_D_BIONIC} ${DRUNTIME_D_DARWIN} ${DRUNTIME_D_DRAGONFLYBSD}
${DRUNTIME_D_FREEBSD} ${DRUNTIME_D_LINUX} ${DRUNTIME_D_NETBSD}
${DRUNTIME_D_OPENBSD} ${DRUNTIME_D_POSIX} ${DRUNTIME_D_SOLARIS}
${DRUNTIME_D_WINDOWS}
${DRUNTIME_D_FREEBSD} ${DRUNTIME_D_HURD} ${DRUNTIME_D_LINUX}
${DRUNTIME_D_NETBSD} ${DRUNTIME_D_OPENBSD} ${DRUNTIME_D_POSIX}
${DRUNTIME_D_SOLARIS} ${DRUNTIME_D_WINDOWS}
)
if("${TARGET_SYSTEM}" MATCHES "Windows")
list(APPEND DRUNTIME_D ${DRUNTIME_D_WINDOWS})
Expand All @@ -206,6 +207,8 @@ elseif("${TARGET_SYSTEM}" MATCHES "UNIX")
list(APPEND DRUNTIME_D ${DRUNTIME_D_OPENBSD})
elseif("${TARGET_SYSTEM}" MATCHES "SunOS")
list(APPEND DRUNTIME_D ${DRUNTIME_D_SOLARIS})
elseif("${TARGET_SYSTEM}" MATCHES "GNU")
list(APPEND DRUNTIME_D ${DRUNTIME_D_HURD})
endif()
endif()

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1 change: 1 addition & 0 deletions runtime/druntime/src/rt/sections_ldc.d
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Expand Up @@ -31,6 +31,7 @@ else version (FreeBSD) {}
else version (DragonFlyBSD) {}
else version (NetBSD) {}
else version (OpenBSD) {}
else version (Hurd) {}
else version (Windows) {}
else version (LDC):

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