loongarch: Add to build system

This patch adds LoongArch to the GRUB build system and various tools,
so GRUB can be built on LoongArch as a UEFI application.

Signed-off-by: Zhou Yang <zhouyang@loongson.cn>
Signed-off-by: Xiaotian Wu <wuxiaotian@loongson.cn>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
Signed-off-by: Wentao Guan <guanwentao@uniontech.com>

GRUB2/MOD_SRC/grub-2.04/Makefile.util.def

@@ -161,6 +161,7 @@ library = {
   common = grub-core/kern/ia64/dl_helper.c;
   common = grub-core/kern/arm/dl_helper.c;
   common = grub-core/kern/arm64/dl_helper.c;
+  common = grub-core/kern/loongarch64/dl_helper.c;
   common = grub-core/lib/minilzo/minilzo.c;
   common = grub-core/lib/xzembed/xz_dec_bcj.c;
   common = grub-core/lib/xzembed/xz_dec_lzma2.c;

GRUB2/MOD_SRC/grub-2.04/configure.ac

@@ -108,6 +108,9 @@ case "$target_cpu" in
   aarch64*)
 		target_cpu=arm64
 		;;
+  loongarch64)
+		target_cpu=loongarch64
+		;;
   riscv32*)
 		target_cpu=riscv32
 		;;
@@ -138,6 +141,7 @@ if test "x$with_platform" = x; then
     ia64-*) platform=efi ;;
     arm-*) platform=uboot ;;
     arm64-*) platform=efi ;;
+    loongarch64-*) platform=efi;;
     riscv32-*) platform=efi ;;
     riscv64-*) platform=efi ;;
     *)
@@ -189,6 +193,7 @@ case "$target_cpu"-"$platform" in
   arm-coreboot) ;;
   arm-efi) ;;
   arm64-efi) ;;
+  loongarch64-efi) ;;
   riscv32-efi) ;;
   riscv64-efi) ;;
   *-emu) ;;
@@ -1186,7 +1191,8 @@ AC_SUBST(TARGET_LDFLAGS_OLDMAGIC)
 
 LDFLAGS="$TARGET_LDFLAGS"
 
-if test "$target_cpu" = x86_64 || test "$target_cpu" = sparc64 || test "$target_cpu" = riscv64 ; then
+if test "$target_cpu" = x86_64 || test "$target_cpu" = sparc64 || test "$target_cpu" = riscv64 \
+  || test "$target_cpu" = loongarch64 ; then
   # Use large model to support 4G memory
   AC_CACHE_CHECK([whether option -mcmodel=large works], grub_cv_cc_mcmodel, [
     CFLAGS="$TARGET_CFLAGS -mcmodel=large"
@@ -1949,6 +1955,8 @@ AM_CONDITIONAL([COND_x86_64_efi], [test x$target_cpu = xx86_64 -a x$platform = x
 AM_CONDITIONAL([COND_i386_xen], [test x$target_cpu = xi386 -a x$platform = xxen])
 AM_CONDITIONAL([COND_i386_xen_pvh], [test x$target_cpu = xi386 -a x$platform = xxen_pvh])
 AM_CONDITIONAL([COND_x86_64_xen], [test x$target_cpu = xx86_64 -a x$platform = xxen])
+AM_CONDITIONAL([COND_loongarch64], [test x$target_cpu = xloongarch64])
+AM_CONDITIONAL([COND_loongarch64_efi], [test x$target_cpu = xloongarch64 -a x$platform = xefi])
 AM_CONDITIONAL([COND_mips64_efi], [test x$target_cpu = xmips64el -a x$platform = xefi])
 AM_CONDITIONAL([COND_mips_loongson], [test x$target_cpu = xmipsel -a x$platform = xloongson])
 AM_CONDITIONAL([COND_mips_qemu_mips], [test "(" x$target_cpu = xmips -o x$target_cpu = xmipsel ")"  -a x$platform = xqemu_mips])

GRUB2/MOD_SRC/grub-2.04/gentpl.py

@@ -32,7 +32,7 @@ GRUB_PLATFORMS = [ "emu", "i386_pc", "i386_efi", "i386_qemu", "i386_coreboot",
                    "mips_loongson", "mips64_efi", "sparc64_ieee1275",
                    "powerpc_ieee1275", "mips_arc", "ia64_efi",
                    "mips_qemu_mips", "arm_uboot", "arm_efi", "arm64_efi",
-                   "arm_coreboot", "riscv32_efi", "riscv64_efi" ]
+                   "arm_coreboot", "loongarch64_efi", "riscv32_efi", "riscv64_efi" ]
 
 GROUPS = {}
 
@@ -48,12 +48,13 @@ GROUPS["sparc64"]  = [ "sparc64_ieee1275" ]
 GROUPS["powerpc"]  = [ "powerpc_ieee1275" ]
 GROUPS["arm"]      = [ "arm_uboot", "arm_efi", "arm_coreboot" ]
 GROUPS["arm64"]    = [ "arm64_efi" ]
+GROUPS["loongarch64"] = [ "loongarch64_efi" ]
 GROUPS["riscv32"]  = [ "riscv32_efi" ]
 GROUPS["riscv64"]  = [ "riscv64_efi" ]
 
 # Groups based on firmware
 GROUPS["efi"]  = [ "i386_efi", "x86_64_efi", "ia64_efi", "arm_efi", "arm64_efi", "mips64_efi",
-		   "riscv32_efi", "riscv64_efi" ]
+		   "loongarch64_efi", "riscv32_efi", "riscv64_efi" ]
 GROUPS["ieee1275"]   = [ "i386_ieee1275", "sparc64_ieee1275", "powerpc_ieee1275" ]
 GROUPS["uboot"] = [ "arm_uboot" ]
 GROUPS["xen"]  = [ "i386_xen", "x86_64_xen" ]
@@ -80,7 +81,7 @@ GROUPS["terminfomodule"]   = GRUB_PLATFORMS[:];
 for i in GROUPS["terminfoinkernel"]: GROUPS["terminfomodule"].remove(i)
 
 # Flattened Device Trees (FDT)
-GROUPS["fdt"] = [ "arm64_efi", "arm_uboot", "arm_efi", "riscv32_efi", "riscv64_efi" ]
+GROUPS["fdt"] = [ "arm64_efi", "arm_uboot", "arm_efi", "loongarch64_efi", "riscv32_efi", "riscv64_efi" ]
 
 # Needs software helpers for division
 # Must match GRUB_DIVISION_IN_SOFTWARE in misc.h

GRUB2/MOD_SRC/grub-2.04/grub-core/Makefile.am

@@ -291,6 +291,12 @@ KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/efi/disk.h
 KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/acpi.h
 endif
 
+if COND_loongarch64_efi
+KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/efi/efi.h
+KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/efi/disk.h
+KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/acpi.h
+endif
+
 if COND_riscv32_efi
 KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/efi/efi.h
 KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/efi/disk.h

GRUB2/MOD_SRC/grub-2.04/grub-core/Makefile.core.def

@@ -65,6 +65,10 @@ kernel = {
   arm64_efi_ldflags          = '-Wl,-r,-d';
   arm64_efi_stripflags       = '--strip-unneeded -K start -R .note -R .comment -R .note.gnu.gold-version -R .eh_frame';
 
+  loongarch64_efi_cflags       = '-fshort-wchar';
+  loongarch64_efi_ldflags      = '-Wl,-r';
+  loongarch64_efi_stripflags   = '--strip-unneeded -K start -R .note -R .comment -R .note.gnu.gold-version -R .eh_frame';
+
   riscv32_efi_ldflags      = '-Wl,-r,-d';
   riscv32_efi_stripflags   = '--strip-unneeded -K start -R .note -R .comment -R .note.gnu.gold-version -R .eh_frame';
 
@@ -125,6 +129,7 @@ kernel = {
   arm_coreboot_startup = kern/arm/startup.S;
   arm_efi_startup = kern/arm/efi/startup.S;
   arm64_efi_startup = kern/arm64/efi/startup.S;
+  loongarch64_efi_startup = kern/loongarch64/efi/startup.S;
   riscv32_efi_startup = kern/riscv/efi/startup.S;
   riscv64_efi_startup = kern/riscv/efi/startup.S;
 
@@ -259,6 +264,9 @@ kernel = {
   arm64_efi = kern/arm64/efi/init.c;
   arm64_efi = kern/efi/fdt.c;
 
+  loongarch64_efi = kern/loongarch64/efi/init.c;
+  loongarch64_efi = kern/efi/fdt.c;
+
   riscv32_efi = kern/riscv/efi/init.c;
   riscv32_efi = kern/efi/fdt.c;
 
@@ -346,6 +354,11 @@ kernel = {
   arm64 = kern/arm64/dl.c;
   arm64 = kern/arm64/dl_helper.c;
 
+  loongarch64 = kern/loongarch64/cache.c;
+  loongarch64 = kern/loongarch64/cache_flush.S;
+  loongarch64 = kern/loongarch64/dl.c;
+  loongarch64 = kern/loongarch64/dl_helper.c;
+
   riscv32 = kern/riscv/cache.c;
   riscv32 = kern/riscv/cache_flush.S;
   riscv32 = kern/riscv/dl.c;
@@ -848,6 +861,7 @@ module = {
   enable = arm64_efi;
   enable = arm_uboot;
   enable = arm_coreboot;
+  enable = loongarch64_efi;
   enable = riscv32_efi;
   enable = riscv64_efi;
 };
@@ -1762,6 +1776,7 @@ module = {
   extra_dist = lib/arm/setjmp.S;
   extra_dist = lib/arm64/setjmp.S;
   extra_dist = lib/riscv/setjmp.S;
+  extra_dist = lib/loongarch64/setjmp.S;
 };
 
 module = {
@@ -1864,6 +1879,7 @@ module = {
   arm_efi = loader/arm64/linux.c;
   arm_uboot = loader/arm/linux.c;
   arm64 = loader/arm64/linux.c;
+  loongarch64 = loader/efi/linux.c;
   riscv32 = loader/riscv/linux.c;
   riscv64 = loader/riscv/linux.c;
   common = loader/linux.c;
@@ -1960,6 +1976,7 @@ module = {
   enable = ia64_efi;
   enable = arm_efi;
   enable = arm64_efi;
+  enable = loongarch64_efi;
   enable = riscv32_efi;
   enable = riscv64_efi;
   enable = mips;

GRUB2/MOD_SRC/grub-2.04/include/grub/efi/api.h

@@ -1692,7 +1692,7 @@ typedef struct grub_efi_block_io grub_efi_block_io_t;
 
 #if (GRUB_TARGET_SIZEOF_VOID_P == 4) || defined (__ia64__) \
   || defined (__aarch64__) || defined(__mips__) || defined (__MINGW64__) || defined (__CYGWIN__) \
-  || defined(__riscv)
+  || defined(__riscv) || defined (__loongarch__)
 
 #define efi_call_0(func)		func()
 #define efi_call_1(func, a)		func(a)

GRUB2/MOD_SRC/grub-2.04/include/grub/util/install.h

@@ -104,6 +104,7 @@ enum grub_install_plat
     GRUB_INSTALL_PLATFORM_ARM64_EFI,
 	GRUB_INSTALL_PLATFORM_MIPS64EL_EFI,
     GRUB_INSTALL_PLATFORM_ARM_COREBOOT,
+    GRUB_INSTALL_PLATFORM_LOONGARCH64_EFI,
     GRUB_INSTALL_PLATFORM_RISCV32_EFI,
     GRUB_INSTALL_PLATFORM_RISCV64_EFI,
     GRUB_INSTALL_PLATFORM_MAX

GRUB2/MOD_SRC/grub-2.04/util/grub-install-common.c

@@ -736,6 +736,7 @@ static struct
     [GRUB_INSTALL_PLATFORM_MIPS64EL_EFI] =     { "mips64el","efi"       },
     [GRUB_INSTALL_PLATFORM_ARM_UBOOT] =        { "arm",     "uboot"     },
     [GRUB_INSTALL_PLATFORM_ARM_COREBOOT] =     { "arm",     "coreboot"  },
+    [GRUB_INSTALL_PLATFORM_LOONGARCH64_EFI] =  { "loongarch64", "efi"   },
     [GRUB_INSTALL_PLATFORM_RISCV32_EFI] =      { "riscv32", "efi"       },
     [GRUB_INSTALL_PLATFORM_RISCV64_EFI] =      { "riscv64", "efi"       },
   }; 

GRUB2/MOD_SRC/grub-2.04/util/grub-install.c

@@ -328,6 +328,8 @@ get_default_platform (void)
    return "arm64-efi";
 #elif defined (__amd64__) || defined (__x86_64__) || defined (__i386__)
    return grub_install_get_default_x86_platform ();
+#elif defined (__loongarch_lp64)
+   return "loongarch64-efi";
 #else
    return NULL;
 #endif
@@ -482,6 +484,7 @@ have_bootdev (enum grub_install_plat pl)
     case GRUB_INSTALL_PLATFORM_ARM_EFI:
     case GRUB_INSTALL_PLATFORM_ARM64_EFI:
     case GRUB_INSTALL_PLATFORM_MIPS64EL_EFI:
+    case GRUB_INSTALL_PLATFORM_LOONGARCH64_EFI:
     case GRUB_INSTALL_PLATFORM_RISCV32_EFI:
     case GRUB_INSTALL_PLATFORM_RISCV64_EFI:
     case GRUB_INSTALL_PLATFORM_I386_IEEE1275:
@@ -908,6 +911,7 @@ main (int argc, char *argv[])
     case GRUB_INSTALL_PLATFORM_ARM_EFI:
     case GRUB_INSTALL_PLATFORM_ARM64_EFI:
     case GRUB_INSTALL_PLATFORM_MIPS64EL_EFI:
+    case GRUB_INSTALL_PLATFORM_LOONGARCH64_EFI:
     case GRUB_INSTALL_PLATFORM_RISCV32_EFI:
     case GRUB_INSTALL_PLATFORM_RISCV64_EFI:
     case GRUB_INSTALL_PLATFORM_IA64_EFI:
@@ -956,6 +960,7 @@ main (int argc, char *argv[])
     case GRUB_INSTALL_PLATFORM_ARM_EFI:
     case GRUB_INSTALL_PLATFORM_ARM64_EFI:
     case GRUB_INSTALL_PLATFORM_MIPS64EL_EFI:
+    case GRUB_INSTALL_PLATFORM_LOONGARCH64_EFI:
     case GRUB_INSTALL_PLATFORM_RISCV32_EFI:
     case GRUB_INSTALL_PLATFORM_RISCV64_EFI:
     case GRUB_INSTALL_PLATFORM_IA64_EFI:
@@ -1012,6 +1017,7 @@ main (int argc, char *argv[])
     case GRUB_INSTALL_PLATFORM_ARM_EFI:
     case GRUB_INSTALL_PLATFORM_ARM64_EFI:
     case GRUB_INSTALL_PLATFORM_MIPS64EL_EFI:
+    case GRUB_INSTALL_PLATFORM_LOONGARCH64_EFI:
     case GRUB_INSTALL_PLATFORM_RISCV32_EFI:
     case GRUB_INSTALL_PLATFORM_RISCV64_EFI:
     case GRUB_INSTALL_PLATFORM_IA64_EFI:
@@ -1130,6 +1136,9 @@ main (int argc, char *argv[])
 	    case GRUB_INSTALL_PLATFORM_MIPS64EL_EFI:
 	      efi_file = "BOOTMIPS64EL.EFI";
 	      break;
+	    case GRUB_INSTALL_PLATFORM_LOONGARCH64_EFI:
+	      efi_file = "BOOTLOONGARCH64.EFI";
+	      break;
 	    case GRUB_INSTALL_PLATFORM_RISCV32_EFI:
 	      efi_file = "BOOTRISCV32.EFI";
 	      break;
@@ -1166,6 +1175,9 @@ main (int argc, char *argv[])
 	    case GRUB_INSTALL_PLATFORM_MIPS64EL_EFI:
 	      efi_file = "grubmips64el.efi";
 	      break;
+	    case GRUB_INSTALL_PLATFORM_LOONGARCH64_EFI:
+	      efi_file = "grubloongarch64.efi";
+	      break;
 	    case GRUB_INSTALL_PLATFORM_RISCV32_EFI:
 	      efi_file = "grubriscv32.efi";
 	      break;
@@ -1475,6 +1487,7 @@ main (int argc, char *argv[])
 		  case GRUB_INSTALL_PLATFORM_ARM_EFI:
 		  case GRUB_INSTALL_PLATFORM_ARM64_EFI:
 		  case GRUB_INSTALL_PLATFORM_MIPS64EL_EFI:
+		  case GRUB_INSTALL_PLATFORM_LOONGARCH64_EFI:
 		  case GRUB_INSTALL_PLATFORM_RISCV32_EFI:
 		  case GRUB_INSTALL_PLATFORM_RISCV64_EFI:
 		  case GRUB_INSTALL_PLATFORM_IA64_EFI:
@@ -1571,6 +1584,7 @@ main (int argc, char *argv[])
     case GRUB_INSTALL_PLATFORM_ARM_EFI:
     case GRUB_INSTALL_PLATFORM_ARM64_EFI:
     case GRUB_INSTALL_PLATFORM_MIPS64EL_EFI:
+    case GRUB_INSTALL_PLATFORM_LOONGARCH64_EFI:
     case GRUB_INSTALL_PLATFORM_RISCV32_EFI:
     case GRUB_INSTALL_PLATFORM_RISCV64_EFI:
     case GRUB_INSTALL_PLATFORM_IA64_EFI:
@@ -1677,6 +1691,7 @@ main (int argc, char *argv[])
     case GRUB_INSTALL_PLATFORM_ARM_EFI:
     case GRUB_INSTALL_PLATFORM_ARM64_EFI:
     case GRUB_INSTALL_PLATFORM_MIPS64EL_EFI:
+    case GRUB_INSTALL_PLATFORM_LOONGARCH64_EFI:
     case GRUB_INSTALL_PLATFORM_RISCV32_EFI:
     case GRUB_INSTALL_PLATFORM_RISCV64_EFI:
     case GRUB_INSTALL_PLATFORM_IA64_EFI:
@@ -1915,6 +1930,7 @@ main (int argc, char *argv[])
     case GRUB_INSTALL_PLATFORM_ARM_EFI:
     case GRUB_INSTALL_PLATFORM_ARM64_EFI:
     case GRUB_INSTALL_PLATFORM_MIPS64EL_EFI:
+    case GRUB_INSTALL_PLATFORM_LOONGARCH64_EFI:
     case GRUB_INSTALL_PLATFORM_RISCV32_EFI:
     case GRUB_INSTALL_PLATFORM_RISCV64_EFI:
     case GRUB_INSTALL_PLATFORM_IA64_EFI:

GRUB2/MOD_SRC/grub-2.04/util/grub-mknetdir.c

@@ -109,6 +109,7 @@ static const struct
     [GRUB_INSTALL_PLATFORM_ARM_EFI] = { "arm-efi", "efinet", ".efi" },
     [GRUB_INSTALL_PLATFORM_ARM64_EFI] = { "arm64-efi", "efinet", ".efi" },
     [GRUB_INSTALL_PLATFORM_MIPS64EL_EFI] = { "mips64el-efi", "efinet", ".efi" },
+    [GRUB_INSTALL_PLATFORM_LOONGARCH64_EFI] = { "loongarch64-efi", "efinet", ".efi" },
     [GRUB_INSTALL_PLATFORM_RISCV32_EFI] = { "riscv32-efi", "efinet", ".efi" },
     [GRUB_INSTALL_PLATFORM_RISCV64_EFI] = { "riscv64-efi", "efinet", ".efi" },
   };

GRUB2/MOD_SRC/grub-2.04/util/grub-mkrescue.c

@@ -539,6 +539,7 @@ main (int argc, char *argv[])
 	  || source_dirs[GRUB_INSTALL_PLATFORM_ARM_EFI]
 	  || source_dirs[GRUB_INSTALL_PLATFORM_ARM64_EFI]
 	  || source_dirs[GRUB_INSTALL_PLATFORM_MIPS64EL_EFI]
+	  || source_dirs[GRUB_INSTALL_PLATFORM_LOONGARCH64_EFI]
 	  || source_dirs[GRUB_INSTALL_PLATFORM_RISCV32_EFI]
 	  || source_dirs[GRUB_INSTALL_PLATFORM_RISCV64_EFI]
 	  || source_dirs[GRUB_INSTALL_PLATFORM_X86_64_EFI])
@@ -740,6 +741,7 @@ main (int argc, char *argv[])
       || source_dirs[GRUB_INSTALL_PLATFORM_ARM_EFI]
       || source_dirs[GRUB_INSTALL_PLATFORM_ARM64_EFI]
       || source_dirs[GRUB_INSTALL_PLATFORM_MIPS64EL_EFI]
+      || source_dirs[GRUB_INSTALL_PLATFORM_LOONGARCH64_EFI]
       || source_dirs[GRUB_INSTALL_PLATFORM_RISCV32_EFI]
       || source_dirs[GRUB_INSTALL_PLATFORM_RISCV64_EFI])
     {
@@ -776,6 +778,12 @@ main (int argc, char *argv[])
 			     imgname);
       free (imgname);
 
+      imgname = grub_util_path_concat (2, efidir_efi_boot, "bootloongarch64.efi");
+      make_image_fwdisk_abs (GRUB_INSTALL_PLATFORM_LOONGARCH64_EFI,
+			     "loongarch64-efi",
+			     imgname);
+      free (imgname);
+
       imgname = grub_util_path_concat (2, efidir_efi_boot, "bootmips64el.efi");
       make_image_fwdisk_abs (GRUB_INSTALL_PLATFORM_MIPS64EL_EFI, "mips64el-efi",
 			     imgname);

GRUB2/MOD_SRC/grub-2.04/util/mkimage.c

@@ -638,6 +638,22 @@ static const struct grub_install_image_target_desc image_targets[] =
       .pe_target = GRUB_PE32_MACHINE_MIPS,
       .elf_target = EM_MIPS,
     },
+    {
+      .dirname = "loongarch64-efi",
+      .names = { "loongarch64-efi", NULL },
+      .voidp_sizeof = 8,
+      .bigendian = 0,
+      .id = IMAGE_EFI,
+      .flags = PLATFORM_FLAGS_NONE,
+      .total_module_size = TARGET_NO_FIELD,
+      .decompressor_compressed_size = TARGET_NO_FIELD,
+      .decompressor_uncompressed_size = TARGET_NO_FIELD,
+      .decompressor_uncompressed_addr = TARGET_NO_FIELD,
+      .section_align = GRUB_PE32_SECTION_ALIGNMENT,
+      .vaddr_offset = EFI64_HEADER_SIZE,
+      .pe_target = GRUB_PE32_MACHINE_LOONGARCH64,
+      .elf_target = EM_LOONGARCH,
+    },
     {
       .dirname = "riscv32-efi",
       .names = { "riscv32-efi", NULL },