Add initial support for loong64

* This adds initial support for building on loong64 to the build system and ROOT's configuration files and utilities Signed-off-by: Zhou Qiankang <wszqkzqk@qq.com>
root-project · Jan 7, 2025 · 433ca8c · 433ca8c
1 parent 8eefabd
commit 433ca8c
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Showing 6 changed files with 26 additions and 1 deletion.
diff --git a/cmake/modules/SetUpLinux.cmake b/cmake/modules/SetUpLinux.cmake
@@ -31,6 +31,8 @@ elseif(CMAKE_SYSTEM_PROCESSOR MATCHES s390)
   set(ROOT_ARCHITECTURE linuxs390gcc)
 elseif(CMAKE_SYSTEM_PROCESSOR MATCHES riscv64)
   set(ROOT_ARCHITECTURE linuxriscv64)
+elseif(CMAKE_SYSTEM_PROCESSOR MATCHES loongarch64)
+  set(ROOT_ARCHITECTURE linuxloong64)
 else()
   message(FATAL_ERROR "Unknown processor: ${CMAKE_SYSTEM_PROCESSOR}")
 endif()

diff --git a/config/root-config.in b/config/root-config.in
@@ -262,6 +262,10 @@ linuxriscv64)
    # RISC-V Linux
    auxlibs="-lm -ldl -rdynamic"
    ;;
+linuxloong64)
+   # loong64 Linux
+   auxlibs="-lm -ldl -rdynamic"
+   ;;
 freebsd*)
    # FreeBSD
    auxcflags="${cxxversionflag}"

diff --git a/core/foundation/inc/ROOT/RConfig.hxx b/core/foundation/inc/ROOT/RConfig.hxx
@@ -238,6 +238,14 @@
 #   define NEED_SIGJMP
 #endif
 
+#if defined(linux) && defined(__loongarch_lp64)
+#   define R__LINUX
+#   define R__UNIX
+#   define R__BYTESWAP
+#   define R__B64
+#   define NEED_SIGJMP
+#endif
+
 #if defined(__MACH__) && defined(__i386__) && !defined(__APPLE__)
 #   define R__HURD
 #   define f2cFortran   /* cfortran.h does not know HURD - sigh */

diff --git a/etc/Makefile.arch b/etc/Makefile.arch
@@ -259,6 +259,15 @@ LDFLAGS       = $(OPT)
 SOFLAGS       = -shared
 endif
 
+ifeq ($(ARCH),linuxloong64)
+# loong64 Linux with gcc and glibc
+CXX           = g++
+CXXFLAGS      = $(OPT) -Wall -fPIC
+LD            = g++
+LDFLAGS       = $(OPT)
+SOFLAGS       = -shared
+endif
+
 ifeq ($(ARCH),freebsd4)
 # FreeBSD with glibc
 CXX           = g++

diff --git a/interpreter/CMakeLists.txt b/interpreter/CMakeLists.txt
@@ -74,6 +74,8 @@ elseif(ROOT_ARCHITECTURE MATCHES s390)
   set(ROOT_CLING_TARGET "SystemZ")
 elseif(ROOT_ARCHITECTURE MATCHES riscv64)
   set(ROOT_CLING_TARGET "RISCV")
+elseif(ROOT_ARCHITECTURE MATCHES loong64)
+  set(ROOT_CLING_TARGET "LoongArch")
 elseif(ROOT_ARCHITECTURE MATCHES freebsd OR ROOT_ARCHITECTURE MATCHES linux OR ROOT_ARCHITECTURE MATCHES macosx)
   set(ROOT_CLING_TARGET "X86")
 elseif(ROOT_ARCHITECTURE MATCHES win32 OR ROOT_ARCHITECTURE MATCHES win64)

diff --git a/interpreter/cling/lib/Interpreter/IncrementalJIT.cpp b/interpreter/cling/lib/Interpreter/IncrementalJIT.cpp
@@ -349,7 +349,7 @@ static bool UseJITLink(const Triple& TT) {
   bool jitLink = false;
   // Default to JITLink on macOS and RISC-V, as done in (recent) LLVM by
   // LLJITBuilderState::prepareForConstruction.
-  if (TT.getArch() == Triple::riscv64 ||
+  if (TT.getArch() == Triple::riscv64 || TT.getArch() == Triple::loongarch64 ||
       (TT.isOSBinFormatMachO() &&
        (TT.getArch() == Triple::aarch64 || TT.getArch() == Triple::x86_64)) ||
       (TT.isOSBinFormatELF() &&