diff --git a/src/common/dwarf_cfi_to_module.cc b/src/common/dwarf_cfi_to_module.cc
--- a/src/common/dwarf_cfi_to_module.cc
+++ b/src/common/dwarf_cfi_to_module.cc
@@ -142,6 +142,55 @@
                     sizeof(kRegisterNames) / sizeof(kRegisterNames[0]));
 }
 
+vector<string> DwarfCFIToModule::RegisterNames::LOONGARCH() {
+  static const char *const names[] = {
+    /* <https://lldb.llvm.org/cpp_reference/namespaceloongarch__dwarf.html> */
+    "r0",   "r1",   "r2",   "r3",   "r4",   "r5",   "r6",   "r7",
+    "r8",   "r9",   "r10",  "r11",  "r12",  "r13",  "r14",  "r15",
+    "r16",  "r17",  "r18",  "r19",  "r20",  "r21",  "r22",  "r23",
+    "r24",  "r25",  "r26",  "r27",  "r28",  "r29",  "r30",  "r31",
+    "f0",   "f1",   "f2",   "f3",   "f4",   "f5",   "f6",   "f7",
+    "f8",   "f9",   "f10",  "f11",  "f12",  "f13",  "f14",  "f15",
+    "f16",  "f17",  "f18",  "f19",  "f20",  "f21",  "f22",  "f23",
+    "f24",  "f25",  "f26",  "f27",  "f28",  "f29",  "f30",  "f31",
+    "fcc0", "fcc1", "fcc2", "fcc3", "fcc4", "fcc5", "fcc6", "fcc7",
+    "fcsr",
+    "vr0",  "vr1",  "vr2",  "vr3",  "vr4",  "vr5",  "vr6",  "vr7",
+    "vr8",  "vr9",  "vr10", "vr11", "vr12", "vr13", "vr14", "vr15",
+    "vr16", "vr17", "vr18", "vr19", "vr20", "vr21", "vr22", "vr23",
+    "vr24", "vr25", "vr26", "vr27", "vr28", "vr29", "vr30", "vr31",
+    "xr0",  "xr1",  "xr2",  "xr3",  "xr4",  "xr5",  "xr6",  "xr7",
+    "xr8",  "xr9",  "xr10", "xr11", "xr12", "xr13", "xr14", "xr15",
+    "xr16", "xr17", "xr18", "xr19", "xr20", "xr21", "xr22", "xr23",
+    "xr24", "xr25", "xr26", "xr27", "xr28", "xr29", "xr30", "xr31"
+  };
+
+  return MakeVector(names, sizeof(names) / sizeof(names[0]));
+}
+
+vector<string> DwarfCFIToModule::RegisterNames::RISCV() {
+  static const char *const names[] = {
+    "pc",  "ra",  "sp",  "gp",  "tp",  "t0",  "t1",  "t2",
+    "s0",  "s1",  "a0",  "a1",  "a2",  "a3",  "a4",  "a5",
+    "a6",  "a7",  "s2",  "s3",  "s4",  "s5",  "s6",  "s7",
+    "s8",  "s9",  "s10", "s11", "t3",  "t4",  "t5",  "t6",
+    "f0",  "f1",  "f2",  "f3",  "f4",  "f5",  "f6",  "f7",
+    "f8",  "f9",  "f10", "f11", "f12", "f13", "f14", "f15",
+    "f16", "f17", "f18", "f19", "f20", "f21", "f22", "f23",
+    "f24", "f25", "f26", "f27", "f28", "f29", "f30", "f31",
+    "",    "",    "",    "",    "",    "",    "",    "",
+    "",    "",    "",    "",    "",    "",    "",    "",
+    "",    "",    "",    "",    "",    "",    "",    "",
+    "",    "",    "",    "",    "",    "",    "",    "",
+    "v0",  "v1",  "v2",  "v3",  "v4",  "v5",  "v6",  "v7",
+    "v8",  "v9",  "v10", "v11", "v12", "v13", "v14", "v15",
+    "v16", "v17", "v18", "v19", "v20", "v21", "v22", "v23",
+    "v24", "v25", "v26", "v27", "v28", "v29", "v30", "v31"
+  };
+
+  return MakeVector(names, sizeof(names) / sizeof(names[0]));
+}
+
 bool DwarfCFIToModule::Entry(size_t offset, uint64 address, uint64 length,
                              uint8 version, const string &augmentation,
                              unsigned return_address) {
diff --git a/src/common/dwarf_cfi_to_module.h b/src/common/dwarf_cfi_to_module.h
--- a/src/common/dwarf_cfi_to_module.h
+++ b/src/common/dwarf_cfi_to_module.h
@@ -115,6 +115,12 @@
     // MIPS.
     static vector<string> MIPS();
 
+    // LoongArch.
+    static vector<string> LOONGARCH();
+
+    // RISC-V.
+    static vector<string> RISCV();
+
    private:
     // Given STRINGS, an array of C strings with SIZE elements, return an
     // equivalent vector<string>.
diff --git a/src/common/linux/dump_symbols.cc b/src/common/linux/dump_symbols.cc
--- a/src/common/linux/dump_symbols.cc
+++ b/src/common/linux/dump_symbols.cc
@@ -111,6 +111,16 @@
 #define EM_AARCH64      183
 #endif
 
+// Old Linux header doesn't define EM_RISCV.
+#ifndef EM_RISCV
+#define EM_RISCV 243
+#endif
+
+// Old Linux header doesn't define EM_LOONGARCH.
+#ifndef EM_LOONGARCH
+#define EM_LOONGARCH 258
+#endif
+
 //
 // FDWrapper
 //
@@ -378,6 +388,12 @@
     case EM_X86_64:
       *register_names = DwarfCFIToModule::RegisterNames::X86_64();
       return true;
+    case EM_LOONGARCH:
+      *register_names = DwarfCFIToModule::RegisterNames::LOONGARCH();
+      return true;
+    case EM_RISCV:
+      *register_names = DwarfCFIToModule::RegisterNames::RISCV();
+      return true;
     default:
       return false;
   }
@@ -983,6 +999,8 @@
     case EM_SPARC:      return "sparc";
     case EM_SPARCV9:    return "sparcv9";
     case EM_X86_64:     return "x86_64";
+    case EM_LOONGARCH:  return "loongarch";
+    case EM_RISCV:      return "riscv";
     default: return NULL;
   }
 }
diff --git a/src/common/linux/memory_mapped_file.cc b/src/common/linux/memory_mapped_file.cc
--- a/src/common/linux/memory_mapped_file.cc
+++ b/src/common/linux/memory_mapped_file.cc
@@ -65,7 +65,9 @@
   }
 
 #if defined(__x86_64__) || defined(__aarch64__) || \
-   (defined(__mips__) && _MIPS_SIM == _ABI64)
+   (defined(__mips__) && _MIPS_SIM == _ABI64) || \
+   (defined(__riscv) && __riscv_xlen == 64) || \
+   (defined(__loongarch__) && __loongarch_grlen == 64)
 
   struct kernel_stat st;
   if (sys_fstat(fd, &st) == -1 || st.st_size < 0) {
diff --git a/src/tools/linux/md2core/minidump-2-core.cc b/src/tools/linux/md2core/minidump-2-core.cc
--- a/src/tools/linux/md2core/minidump-2-core.cc
+++ b/src/tools/linux/md2core/minidump-2-core.cc
@@ -77,6 +77,10 @@
   #define ELF_ARCH  EM_MIPS
 #elif defined(__aarch64__)
   #define ELF_ARCH  EM_AARCH64
+#elif defined(__loongarch__)
+  #define ELF_ARCH  EM_LOONGARCH
+#elif defined(__riscv)
+  #define ELF_ARCH  EM_RISCV
 #endif
 
 #if defined(__arm__)