File riscv64-zero.patch of Package java-1_8_0-openjdk.20260205130247

--- openjdk/common/autoconf/build-aux/autoconf-config.sub	2026-02-02 11:26:27.909663959 +0100
+++ openjdk/common/autoconf/build-aux/autoconf-config.sub	2026-02-02 11:26:41.627981464 +0100
@@ -302,6 +302,7 @@
 	| pdp10 | pdp11 | pj | pjl \
 	| powerpc | powerpc64 | powerpc64le | powerpcle | ppcbe \
 	| pyramid \
+	| riscv32 | riscv64 \
 	| score \
 	| sh | sh[1234] | sh[24]a | sh[23]e | sh[34]eb | sheb | shbe | shle | sh[1234]le | sh3ele \
 	| sh64 | sh64le \
@@ -383,6 +384,7 @@
 	| pdp10-* | pdp11-* | pj-* | pjl-* | pn-* | power-* \
 	| powerpc-* | powerpc64-* | powerpc64le-* | powerpcle-* | ppcbe-* \
 	| pyramid-* \
+	| riscv32-* | riscv64-* \
 	| romp-* | rs6000-* \
 	| sh-* | sh[1234]-* | sh[24]a-* | sh[23]e-* | sh[34]eb-* | sheb-* | shbe-* \
 	| shle-* | sh[1234]le-* | sh3ele-* | sh64-* | sh64le-* \
--- openjdk/common/autoconf/platform.m4	2026-02-02 11:26:27.910692427 +0100
+++ openjdk/common/autoconf/platform.m4	2026-02-02 11:26:41.629818609 +0100
@@ -102,6 +102,12 @@
       VAR_CPU_BITS=64
       VAR_CPU_ENDIAN=little
       ;;
+    riscv64)
+      VAR_CPU=riscv64
+      VAR_CPU_ARCH=riscv
+      VAR_CPU_BITS=64
+      VAR_CPU_ENDIAN=little
+      ;;
     *)
       AC_MSG_ERROR([unsupported cpu $1])
       ;;
@@ -397,6 +403,7 @@
     sparc*)  ZERO_ARCHDEF=SPARC ;;
     x86_64*) ZERO_ARCHDEF=AMD64 ;;
     x86)     ZERO_ARCHDEF=IA32  ;;
+    riscv*)  ZERO_ARCHDEF=RISCV  ;;
     *)      ZERO_ARCHDEF=$(echo "${OPENJDK_TARGET_CPU_LEGACY_LIB}" | tr a-z A-Z)
   esac
   AC_SUBST(ZERO_ARCHDEF)
--- openjdk/hotspot/src/os/linux/vm/os_linux.cpp	2026-02-02 11:26:27.994153937 +0100
+++ openjdk/hotspot/src/os/linux/vm/os_linux.cpp	2026-02-02 11:28:02.905112153 +0100
@@ -365,7 +365,7 @@
   //        1: ...
   //        ...
   //        7: The default directories, normally /lib and /usr/lib.
-#if defined(AMD64) || defined(_LP64) && (defined(SPARC) || defined(PPC) || defined(S390))
+#if defined(AMD64) || defined(_LP64) && (defined(SPARC) || defined(PPC) || defined(S390) || defined(RISCV))
   #define DEFAULT_LIBPATH "/usr/lib64:/lib64:/lib:/usr/lib"
 #else
 #if defined(AARCH64)
@@ -1962,6 +1962,10 @@
   #define EM_LOONGARCH  258               /* LoongArch */
   #endif
 
+  #ifndef EM_RISCV
+  #define EM_RISCV	243
+  #endif
+
   static const arch_t arch_array[]={
     {EM_386,         EM_386,     ELFCLASS32, ELFDATA2LSB, (char*)"IA 32"},
     {EM_486,         EM_386,     ELFCLASS32, ELFDATA2LSB, (char*)"IA 32"},
@@ -1985,6 +1989,7 @@
     {EM_68K,         EM_68K,     ELFCLASS32, ELFDATA2MSB, (char*)"M68k"},
     {EM_AARCH64,     EM_AARCH64, ELFCLASS64, ELFDATA2LSB, (char*)"AARCH64"},
     {EM_LOONGARCH,   EM_LOONGARCH, ELFCLASS64, ELFDATA2LSB, (char*)"LoongArch"},
+    {EM_RISCV,       EM_RISCV,   ELFCLASS64, ELFDATA2LSB, (char*)"RISCV"},
   };
 
   #if  (defined IA32)
@@ -2019,6 +2024,8 @@
     static  Elf32_Half running_arch_code=EM_AARCH64;
   #elif  (defined LOONGARCH64)
     static  Elf32_Half running_arch_code=EM_LOONGARCH;
+#elif  (defined RISCV)
+    static  Elf32_Half running_arch_code=EM_RISCV;
   #else
     #error Method os::dll_load requires that one of following is defined:\
          IA32, AMD64, IA64, __sparc, __powerpc__, ARM, S390, ALPHA, MIPS, MIPSEL, PARISC, M68K, AARCH64, LOONGARCH64