Update code

mcp-server-ssh/node_modules/cpu-features/deps/cpu_features/src/copy.inl

@@ -0,0 +1,19 @@
+// Copyright 2021 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include <stddef.h>
+
+static void copy(char *__restrict dst, const char *src, size_t count) {
+  for (size_t i = 0; i < count; ++i) dst[i] = src[i];
+}

mcp-server-ssh/node_modules/cpu-features/deps/cpu_features/src/define_introspection.inl

@@ -0,0 +1,86 @@
+// Copyright 2017 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#ifndef INTROSPECTION_PREFIX
+#error "missing INTROSPECTION_PREFIX"
+#endif
+#ifndef INTROSPECTION_ENUM_PREFIX
+#error "missing INTROSPECTION_ENUM_PREFIX"
+#endif
+#ifndef INTROSPECTION_TABLE
+#error "missing INTROSPECTION_TABLE"
+#endif
+
+#include <stdbool.h>
+
+#define STRINGIZE_(s) #s
+#define STRINGIZE(s) STRINGIZE_(s)
+
+#define FEAT_TYPE_NAME__(X) X##Features
+#define FEAT_TYPE_NAME_(X) FEAT_TYPE_NAME__(X)
+#define FEAT_TYPE_NAME FEAT_TYPE_NAME_(INTROSPECTION_PREFIX)
+
+#define FEAT_ENUM_NAME__(X) X##FeaturesEnum
+#define FEAT_ENUM_NAME_(X) FEAT_ENUM_NAME__(X)
+#define FEAT_ENUM_NAME FEAT_ENUM_NAME_(INTROSPECTION_PREFIX)
+
+#define GET_FEAT_ENUM_VALUE__(X) Get##X##FeaturesEnumValue
+#define GET_FEAT_ENUM_VALUE_(X) GET_FEAT_ENUM_VALUE__(X)
+#define GET_FEAT_ENUM_VALUE GET_FEAT_ENUM_VALUE_(INTROSPECTION_PREFIX)
+
+#define GET_FEAT_ENUM_NAME__(X) Get##X##FeaturesEnumName
+#define GET_FEAT_ENUM_NAME_(X) GET_FEAT_ENUM_NAME__(X)
+#define GET_FEAT_ENUM_NAME GET_FEAT_ENUM_NAME_(INTROSPECTION_PREFIX)
+
+#define FEAT_ENUM_LAST__(X) X##_LAST_
+#define FEAT_ENUM_LAST_(X) FEAT_ENUM_LAST__(X)
+#define FEAT_ENUM_LAST FEAT_ENUM_LAST_(INTROSPECTION_ENUM_PREFIX)
+
+// Generate individual getters and setters.
+#define LINE(ENUM, NAME, A, B, C)                                \
+  static void set_##ENUM(FEAT_TYPE_NAME* features, bool value) { \
+    features->NAME = value;                                      \
+  }                                                              \
+  static int get_##ENUM(const FEAT_TYPE_NAME* features) {        \
+    return features->NAME;                                       \
+  }
+INTROSPECTION_TABLE
+#undef LINE
+
+// Generate getters table
+#define LINE(ENUM, NAME, A, B, C) [ENUM] = get_##ENUM,
+static int (*const kGetters[])(const FEAT_TYPE_NAME*) = {INTROSPECTION_TABLE};
+#undef LINE
+
+// Generate setters table
+#define LINE(ENUM, NAME, A, B, C) [ENUM] = set_##ENUM,
+static void (*const kSetters[])(FEAT_TYPE_NAME*, bool) = {INTROSPECTION_TABLE};
+#undef LINE
+
+// Implements the `GetXXXFeaturesEnumValue` API.
+int GET_FEAT_ENUM_VALUE(const FEAT_TYPE_NAME* features, FEAT_ENUM_NAME value) {
+  if (value >= FEAT_ENUM_LAST) return false;
+  return kGetters[value](features);
+}
+
+// Generate feature name table.
+#define LINE(ENUM, NAME, A, B, C) [ENUM] = STRINGIZE(NAME),
+static const char* kFeatureNames[] = {INTROSPECTION_TABLE};
+#undef LINE
+
+// Implements the `GetXXXFeaturesEnumName` API.
+const char* GET_FEAT_ENUM_NAME(FEAT_ENUM_NAME value) {
+  if (value >= FEAT_ENUM_LAST) return "unknown_feature";
+  return kFeatureNames[value];
+}

mcp-server-ssh/node_modules/cpu-features/deps/cpu_features/src/define_introspection_and_hwcaps.inl

@@ -0,0 +1,26 @@
+// Copyright 2017 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include "define_introspection.inl"
+#include "internal/hwcaps.h"
+
+#define LINE(ENUM, NAME, CPUINFO_FLAG, HWCAP, HWCAP2) \
+  [ENUM] = (HardwareCapabilities){HWCAP, HWCAP2},
+static const HardwareCapabilities kHardwareCapabilities[] = {
+    INTROSPECTION_TABLE};
+#undef LINE
+
+#define LINE(ENUM, NAME, CPUINFO_FLAG, HWCAP, HWCAP2) [ENUM] = CPUINFO_FLAG,
+static const char* kCpuInfoFlags[] = {INTROSPECTION_TABLE};
+#undef LINE

mcp-server-ssh/node_modules/cpu-features/deps/cpu_features/src/equals.inl

@@ -0,0 +1,22 @@
+// Copyright 2021 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include <stdbool.h>
+#include <stddef.h>
+
+static bool equals(const char *lhs, const char *rhs, size_t count) {
+  for (size_t i = 0; i < count; ++i)
+    if (lhs[i] != rhs[i]) return false;
+  return true;
+}

mcp-server-ssh/node_modules/cpu-features/deps/cpu_features/src/filesystem.c

@@ -0,0 +1,62 @@
+// Copyright 2017 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include "internal/filesystem.h"
+
+#include <errno.h>
+#include <fcntl.h>
+#include <stdlib.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+
+#if defined(CPU_FEATURES_MOCK_FILESYSTEM)
+// Implementation will be provided by test/filesystem_for_testing.cc.
+#elif defined(_MSC_VER)
+#include <io.h>
+int CpuFeatures_OpenFile(const char* filename) {
+  int fd = -1;
+  _sopen_s(&fd, filename, _O_RDONLY, _SH_DENYWR, _S_IREAD);
+  return fd;
+}
+
+void CpuFeatures_CloseFile(int file_descriptor) { _close(file_descriptor); }
+
+int CpuFeatures_ReadFile(int file_descriptor, void* buffer,
+                         size_t buffer_size) {
+  return _read(file_descriptor, buffer, (unsigned int)buffer_size);
+}
+
+#else
+#include <unistd.h>
+
+int CpuFeatures_OpenFile(const char* filename) {
+  int result;
+  do {
+    result = open(filename, O_RDONLY);
+  } while (result == -1L && errno == EINTR);
+  return result;
+}
+
+void CpuFeatures_CloseFile(int file_descriptor) { close(file_descriptor); }
+
+int CpuFeatures_ReadFile(int file_descriptor, void* buffer,
+                         size_t buffer_size) {
+  int result;
+  do {
+    result = read(file_descriptor, buffer, buffer_size);
+  } while (result == -1L && errno == EINTR);
+  return result;
+}
+
+#endif

mcp-server-ssh/node_modules/cpu-features/deps/cpu_features/src/hwcaps.c

@@ -0,0 +1,169 @@
+// Copyright 2017 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include "internal/hwcaps.h"
+
+#include <stdlib.h>
+#include <string.h>
+
+#include "cpu_features_macros.h"
+#include "internal/filesystem.h"
+#include "internal/string_view.h"
+
+static bool IsSet(const uint32_t mask, const uint32_t value) {
+  if (mask == 0) return false;
+  return (value & mask) == mask;
+}
+
+bool CpuFeatures_IsHwCapsSet(const HardwareCapabilities hwcaps_mask,
+                             const HardwareCapabilities hwcaps) {
+  return IsSet(hwcaps_mask.hwcaps, hwcaps.hwcaps) ||
+         IsSet(hwcaps_mask.hwcaps2, hwcaps.hwcaps2);
+}
+
+#ifdef CPU_FEATURES_TEST
+// In test mode, hwcaps_for_testing will define the following functions.
+HardwareCapabilities CpuFeatures_GetHardwareCapabilities(void);
+const char* CpuFeatures_GetPlatformPointer(void);
+const char* CpuFeatures_GetBasePlatformPointer(void);
+#else
+
+// Debug facilities
+#if defined(NDEBUG)
+#define D(...)
+#else
+#include <stdio.h>
+#define D(...)           \
+  do {                   \
+    printf(__VA_ARGS__); \
+    fflush(stdout);      \
+  } while (0)
+#endif
+
+////////////////////////////////////////////////////////////////////////////////
+// Implementation of GetElfHwcapFromGetauxval
+////////////////////////////////////////////////////////////////////////////////
+
+#define AT_HWCAP 16
+#define AT_HWCAP2 26
+#define AT_PLATFORM 15
+#define AT_BASE_PLATFORM 24
+
+#if defined(HAVE_STRONG_GETAUXVAL)
+#include <sys/auxv.h>
+static unsigned long GetElfHwcapFromGetauxval(uint32_t hwcap_type) {
+  return getauxval(hwcap_type);
+}
+#elif defined(HAVE_DLFCN_H)
+// On Android we probe the system's C library for a 'getauxval' function and
+// call it if it exits, or return 0 for failure. This function is available
+// since API level 18.
+//
+// Note that getauxval() can't really be re-implemented here, because its
+// implementation does not parse /proc/self/auxv. Instead it depends on values
+// that are passed by the kernel at process-init time to the C runtime
+// initialization layer.
+
+#include <dlfcn.h>
+
+typedef unsigned long getauxval_func_t(unsigned long);
+
+static uint32_t GetElfHwcapFromGetauxval(uint32_t hwcap_type) {
+  uint32_t ret = 0;
+  void *libc_handle = NULL;
+  getauxval_func_t *func = NULL;
+
+  dlerror();  // Cleaning error state before calling dlopen.
+  libc_handle = dlopen("libc.so", RTLD_NOW);
+  if (!libc_handle) {
+    D("Could not dlopen() C library: %s\n", dlerror());
+    return 0;
+  }
+  func = (getauxval_func_t *)dlsym(libc_handle, "getauxval");
+  if (!func) {
+    D("Could not find getauxval() in C library\n");
+  } else {
+    // Note: getauxval() returns 0 on failure. Doesn't touch errno.
+    ret = (uint32_t)(*func)(hwcap_type);
+  }
+  dlclose(libc_handle);
+  return ret;
+}
+#else
+#error "This platform does not provide hardware capabilities."
+#endif
+
+// Implementation of GetHardwareCapabilities for OS that provide
+// GetElfHwcapFromGetauxval().
+
+// Fallback when getauxval is not available, retrieves hwcaps from
+// "/proc/self/auxv".
+static uint32_t GetElfHwcapFromProcSelfAuxv(uint32_t hwcap_type) {
+  struct {
+    uint32_t tag;
+    uint32_t value;
+  } entry;
+  uint32_t result = 0;
+  const char filepath[] = "/proc/self/auxv";
+  const int fd = CpuFeatures_OpenFile(filepath);
+  if (fd < 0) {
+    D("Could not open %s\n", filepath);
+    return 0;
+  }
+  for (;;) {
+    const int ret = CpuFeatures_ReadFile(fd, (char *)&entry, sizeof entry);
+    if (ret < 0) {
+      D("Error while reading %s\n", filepath);
+      break;
+    }
+    // Detect end of list.
+    if (ret == 0 || (entry.tag == 0 && entry.value == 0)) {
+      break;
+    }
+    if (entry.tag == hwcap_type) {
+      result = entry.value;
+      break;
+    }
+  }
+  CpuFeatures_CloseFile(fd);
+  return result;
+}
+
+// Retrieves hardware capabilities by first trying to call getauxval, if not
+// available falls back to reading "/proc/self/auxv".
+static unsigned long GetHardwareCapabilitiesFor(uint32_t type) {
+  unsigned long hwcaps = GetElfHwcapFromGetauxval(type);
+  if (!hwcaps) {
+    D("Parsing /proc/self/auxv to extract ELF hwcaps!\n");
+    hwcaps = GetElfHwcapFromProcSelfAuxv(type);
+  }
+  return hwcaps;
+}
+
+HardwareCapabilities CpuFeatures_GetHardwareCapabilities(void) {
+  HardwareCapabilities capabilities;
+  capabilities.hwcaps = GetHardwareCapabilitiesFor(AT_HWCAP);
+  capabilities.hwcaps2 = GetHardwareCapabilitiesFor(AT_HWCAP2);
+  return capabilities;
+}
+
+const char *CpuFeatures_GetPlatformPointer(void) {
+  return (const char *)GetHardwareCapabilitiesFor(AT_PLATFORM);
+}
+
+const char *CpuFeatures_GetBasePlatformPointer(void) {
+  return (const char *)GetHardwareCapabilitiesFor(AT_BASE_PLATFORM);
+}
+
+#endif  // CPU_FEATURES_TEST

mcp-server-ssh/node_modules/cpu-features/deps/cpu_features/src/impl_aarch64__base_implementation.inl

@@ -0,0 +1,88 @@
+// Copyright 2021 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include <stdbool.h>
+
+#include "cpuinfo_aarch64.h"
+#include "internal/bit_utils.h"
+#include "internal/filesystem.h"
+#include "internal/stack_line_reader.h"
+#include "internal/string_view.h"
+
+#if !defined(CPU_FEATURES_ARCH_AARCH64)
+#error "Cannot compile aarch64_base on a non aarch64 platform."
+#endif
+
+////////////////////////////////////////////////////////////////////////////////
+// Definitions for introspection.
+////////////////////////////////////////////////////////////////////////////////
+#define INTROSPECTION_TABLE                                                \
+  LINE(AARCH64_FP, fp, "fp", AARCH64_HWCAP_FP, 0)                          \
+  LINE(AARCH64_ASIMD, asimd, "asimd", AARCH64_HWCAP_ASIMD, 0)              \
+  LINE(AARCH64_EVTSTRM, evtstrm, "evtstrm", AARCH64_HWCAP_EVTSTRM, 0)      \
+  LINE(AARCH64_AES, aes, "aes", AARCH64_HWCAP_AES, 0)                      \
+  LINE(AARCH64_PMULL, pmull, "pmull", AARCH64_HWCAP_PMULL, 0)              \
+  LINE(AARCH64_SHA1, sha1, "sha1", AARCH64_HWCAP_SHA1, 0)                  \
+  LINE(AARCH64_SHA2, sha2, "sha2", AARCH64_HWCAP_SHA2, 0)                  \
+  LINE(AARCH64_CRC32, crc32, "crc32", AARCH64_HWCAP_CRC32, 0)              \
+  LINE(AARCH64_ATOMICS, atomics, "atomics", AARCH64_HWCAP_ATOMICS, 0)      \
+  LINE(AARCH64_FPHP, fphp, "fphp", AARCH64_HWCAP_FPHP, 0)                  \
+  LINE(AARCH64_ASIMDHP, asimdhp, "asimdhp", AARCH64_HWCAP_ASIMDHP, 0)      \
+  LINE(AARCH64_CPUID, cpuid, "cpuid", AARCH64_HWCAP_CPUID, 0)              \
+  LINE(AARCH64_ASIMDRDM, asimdrdm, "asimdrdm", AARCH64_HWCAP_ASIMDRDM, 0)  \
+  LINE(AARCH64_JSCVT, jscvt, "jscvt", AARCH64_HWCAP_JSCVT, 0)              \
+  LINE(AARCH64_FCMA, fcma, "fcma", AARCH64_HWCAP_FCMA, 0)                  \
+  LINE(AARCH64_LRCPC, lrcpc, "lrcpc", AARCH64_HWCAP_LRCPC, 0)              \
+  LINE(AARCH64_DCPOP, dcpop, "dcpop", AARCH64_HWCAP_DCPOP, 0)              \
+  LINE(AARCH64_SHA3, sha3, "sha3", AARCH64_HWCAP_SHA3, 0)                  \
+  LINE(AARCH64_SM3, sm3, "sm3", AARCH64_HWCAP_SM3, 0)                      \
+  LINE(AARCH64_SM4, sm4, "sm4", AARCH64_HWCAP_SM4, 0)                      \
+  LINE(AARCH64_ASIMDDP, asimddp, "asimddp", AARCH64_HWCAP_ASIMDDP, 0)      \
+  LINE(AARCH64_SHA512, sha512, "sha512", AARCH64_HWCAP_SHA512, 0)          \
+  LINE(AARCH64_SVE, sve, "sve", AARCH64_HWCAP_SVE, 0)                      \
+  LINE(AARCH64_ASIMDFHM, asimdfhm, "asimdfhm", AARCH64_HWCAP_ASIMDFHM, 0)  \
+  LINE(AARCH64_DIT, dit, "dit", AARCH64_HWCAP_DIT, 0)                      \
+  LINE(AARCH64_USCAT, uscat, "uscat", AARCH64_HWCAP_USCAT, 0)              \
+  LINE(AARCH64_ILRCPC, ilrcpc, "ilrcpc", AARCH64_HWCAP_ILRCPC, 0)          \
+  LINE(AARCH64_FLAGM, flagm, "flagm", AARCH64_HWCAP_FLAGM, 0)              \
+  LINE(AARCH64_SSBS, ssbs, "ssbs", AARCH64_HWCAP_SSBS, 0)                  \
+  LINE(AARCH64_SB, sb, "sb", AARCH64_HWCAP_SB, 0)                          \
+  LINE(AARCH64_PACA, paca, "paca", AARCH64_HWCAP_PACA, 0)                  \
+  LINE(AARCH64_PACG, pacg, "pacg", AARCH64_HWCAP_PACG, 0)                  \
+  LINE(AARCH64_DCPODP, dcpodp, "dcpodp", 0, AARCH64_HWCAP2_DCPODP)         \
+  LINE(AARCH64_SVE2, sve2, "sve2", 0, AARCH64_HWCAP2_SVE2)                 \
+  LINE(AARCH64_SVEAES, sveaes, "sveaes", 0, AARCH64_HWCAP2_SVEAES)         \
+  LINE(AARCH64_SVEPMULL, svepmull, "svepmull", 0, AARCH64_HWCAP2_SVEPMULL) \
+  LINE(AARCH64_SVEBITPERM, svebitperm, "svebitperm", 0,                    \
+       AARCH64_HWCAP2_SVEBITPERM)                                          \
+  LINE(AARCH64_SVESHA3, svesha3, "svesha3", 0, AARCH64_HWCAP2_SVESHA3)     \
+  LINE(AARCH64_SVESM4, svesm4, "svesm4", 0, AARCH64_HWCAP2_SVESM4)         \
+  LINE(AARCH64_FLAGM2, flagm2, "flagm2", 0, AARCH64_HWCAP2_FLAGM2)         \
+  LINE(AARCH64_FRINT, frint, "frint", 0, AARCH64_HWCAP2_FRINT)             \
+  LINE(AARCH64_SVEI8MM, svei8mm, "svei8mm", 0, AARCH64_HWCAP2_SVEI8MM)     \
+  LINE(AARCH64_SVEF32MM, svef32mm, "svef32mm", 0, AARCH64_HWCAP2_SVEF32MM) \
+  LINE(AARCH64_SVEF64MM, svef64mm, "svef64mm", 0, AARCH64_HWCAP2_SVEF64MM) \
+  LINE(AARCH64_SVEBF16, svebf16, "svebf16", 0, AARCH64_HWCAP2_SVEBF16)     \
+  LINE(AARCH64_I8MM, i8mm, "i8mm", 0, AARCH64_HWCAP2_I8MM)                 \
+  LINE(AARCH64_BF16, bf16, "bf16", 0, AARCH64_HWCAP2_BF16)                 \
+  LINE(AARCH64_DGH, dgh, "dgh", 0, AARCH64_HWCAP2_DGH)                     \
+  LINE(AARCH64_RNG, rng, "rng", 0, AARCH64_HWCAP2_RNG)                     \
+  LINE(AARCH64_BTI, bti, "bti", 0, AARCH64_HWCAP2_BTI)                     \
+  LINE(AARCH64_MTE, mte, "mte", 0, AARCH64_HWCAP2_MTE)                     \
+  LINE(AARCH64_ECV, ecv, "ecv", 0, AARCH64_HWCAP2_ECV)                     \
+  LINE(AARCH64_AFP, afp, "afp", 0, AARCH64_HWCAP2_AFP)                     \
+  LINE(AARCH64_RPRES, rpres, "rpres", 0, AARCH64_HWCAP2_RPRES)
+#define INTROSPECTION_PREFIX Aarch64
+#define INTROSPECTION_ENUM_PREFIX AARCH64
+#include "define_introspection_and_hwcaps.inl"

mcp-server-ssh/node_modules/cpu-features/deps/cpu_features/src/impl_aarch64_linux_or_android.c

@@ -0,0 +1,79 @@
+// Copyright 2017 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include "cpu_features_macros.h"
+
+#ifdef CPU_FEATURES_ARCH_AARCH64
+#if defined(CPU_FEATURES_OS_LINUX) || defined(CPU_FEATURES_OS_ANDROID)
+
+#include "impl_aarch64__base_implementation.inl"
+
+static bool HandleAarch64Line(const LineResult result,
+                              Aarch64Info* const info) {
+  StringView line = result.line;
+  StringView key, value;
+  if (CpuFeatures_StringView_GetAttributeKeyValue(line, &key, &value)) {
+    if (CpuFeatures_StringView_IsEquals(key, str("Features"))) {
+      for (size_t i = 0; i < AARCH64_LAST_; ++i) {
+        kSetters[i](&info->features, CpuFeatures_StringView_HasWord(
+                                         value, kCpuInfoFlags[i], ' '));
+      }
+    } else if (CpuFeatures_StringView_IsEquals(key, str("CPU implementer"))) {
+      info->implementer = CpuFeatures_StringView_ParsePositiveNumber(value);
+    } else if (CpuFeatures_StringView_IsEquals(key, str("CPU variant"))) {
+      info->variant = CpuFeatures_StringView_ParsePositiveNumber(value);
+    } else if (CpuFeatures_StringView_IsEquals(key, str("CPU part"))) {
+      info->part = CpuFeatures_StringView_ParsePositiveNumber(value);
+    } else if (CpuFeatures_StringView_IsEquals(key, str("CPU revision"))) {
+      info->revision = CpuFeatures_StringView_ParsePositiveNumber(value);
+    }
+  }
+  return !result.eof;
+}
+
+static void FillProcCpuInfoData(Aarch64Info* const info) {
+  const int fd = CpuFeatures_OpenFile("/proc/cpuinfo");
+  if (fd >= 0) {
+    StackLineReader reader;
+    StackLineReader_Initialize(&reader, fd);
+    for (;;) {
+      if (!HandleAarch64Line(StackLineReader_NextLine(&reader), info)) {
+        break;
+      }
+    }
+    CpuFeatures_CloseFile(fd);
+  }
+}
+
+static const Aarch64Info kEmptyAarch64Info;
+
+Aarch64Info GetAarch64Info(void) {
+  // capabilities are fetched from both getauxval and /proc/cpuinfo so we can
+  // have some information if the executable is sandboxed (aka no access to
+  // /proc/cpuinfo).
+  Aarch64Info info = kEmptyAarch64Info;
+
+  FillProcCpuInfoData(&info);
+  const HardwareCapabilities hwcaps = CpuFeatures_GetHardwareCapabilities();
+  for (size_t i = 0; i < AARCH64_LAST_; ++i) {
+    if (CpuFeatures_IsHwCapsSet(kHardwareCapabilities[i], hwcaps)) {
+      kSetters[i](&info.features, true);
+    }
+  }
+
+  return info;
+}
+
+#endif  // defined(CPU_FEATURES_OS_LINUX) || defined(CPU_FEATURES_OS_ANDROID)
+#endif  // CPU_FEATURES_ARCH_AARCH64

mcp-server-ssh/node_modules/cpu-features/deps/cpu_features/src/impl_aarch64_macos_or_iphone.c

@@ -0,0 +1,82 @@
+// Copyright 2021 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include "cpu_features_macros.h"
+
+#ifdef CPU_FEATURES_ARCH_AARCH64
+#if defined(CPU_FEATURES_OS_MACOS) || defined(CPU_FEATURES_OS_IPHONE)
+
+#include "impl_aarch64__base_implementation.inl"
+
+#if !defined(HAVE_SYSCTLBYNAME)
+#error "Darwin needs support for sysctlbyname"
+#endif
+#include <sys/sysctl.h>
+
+#if defined(CPU_FEATURES_MOCK_SYSCTL_AARCH64)
+extern bool GetDarwinSysCtlByName(const char*);
+extern int GetDarwinSysCtlByNameValue(const char* name);
+#else
+static int GetDarwinSysCtlByNameValue(const char* name) {
+  int enabled;
+  size_t enabled_len = sizeof(enabled);
+  const int failure = sysctlbyname(name, &enabled, &enabled_len, NULL, 0);
+  return failure ? 0 : enabled;
+}
+
+static bool GetDarwinSysCtlByName(const char* name) {
+  return GetDarwinSysCtlByNameValue(name) != 0;
+}
+#endif
+
+static const Aarch64Info kEmptyAarch64Info;
+
+Aarch64Info GetAarch64Info(void) {
+  Aarch64Info info = kEmptyAarch64Info;
+
+  // Handling Darwin platform through sysctlbyname.
+  info.implementer = GetDarwinSysCtlByNameValue("hw.cputype");
+  info.variant = GetDarwinSysCtlByNameValue("hw.cpusubtype");
+  info.part = GetDarwinSysCtlByNameValue("hw.cpufamily");
+  info.revision = GetDarwinSysCtlByNameValue("hw.cpusubfamily");
+
+  info.features.fp = GetDarwinSysCtlByName("hw.optional.floatingpoint");
+  info.features.asimd = GetDarwinSysCtlByName("hw.optional.AdvSIMD");
+  info.features.aes = GetDarwinSysCtlByName("hw.optional.arm.FEAT_AES");
+  info.features.pmull = GetDarwinSysCtlByName("hw.optional.arm.FEAT_PMULL");
+  info.features.sha1 = GetDarwinSysCtlByName("hw.optional.arm.FEAT_SHA1");
+  info.features.sha2 = GetDarwinSysCtlByName("hw.optional.arm.FEAT_SHA2");
+  info.features.crc32 = GetDarwinSysCtlByName("hw.optional.armv8_crc32");
+  info.features.atomics = GetDarwinSysCtlByName("hw.optional.armv8_1_atomics");
+  info.features.fphp = GetDarwinSysCtlByName("hw.optional.neon_hpfp");
+  info.features.jscvt = GetDarwinSysCtlByName("hw.optional.arm.FEAT_JSCVT");
+  info.features.fcma = GetDarwinSysCtlByName("hw.optional.arm.FEAT_FCMA");
+  info.features.lrcpc = GetDarwinSysCtlByName("hw.optional.arm.FEAT_LRCPC");
+  info.features.sha3 = GetDarwinSysCtlByName("hw.optional.armv8_2_sha3");
+  info.features.sha512 = GetDarwinSysCtlByName("hw.optional.armv8_2_sha512");
+  info.features.asimdfhm = GetDarwinSysCtlByName("hw.optional.armv8_2_fhm");
+  info.features.flagm = GetDarwinSysCtlByName("hw.optional.arm.FEAT_FLAGM");
+  info.features.flagm2 = GetDarwinSysCtlByName("hw.optional.arm.FEAT_FLAGM2");
+  info.features.ssbs = GetDarwinSysCtlByName("hw.optional.arm.FEAT_SSBS");
+  info.features.sb = GetDarwinSysCtlByName("hw.optional.arm.FEAT_SB");
+  info.features.i8mm = GetDarwinSysCtlByName("hw.optional.arm.FEAT_I8MM");
+  info.features.bf16 = GetDarwinSysCtlByName("hw.optional.arm.FEAT_BF16");
+  info.features.bti = GetDarwinSysCtlByName("hw.optional.arm.FEAT_BTI");
+  info.features.ecv = GetDarwinSysCtlByName("hw.optional.arm.FEAT_ECV");
+
+  return info;
+}
+
+#endif  // defined(CPU_FEATURES_OS_MACOS) || defined(CPU_FEATURES_OS_IPHONE)
+#endif  // CPU_FEATURES_ARCH_AARCH64

mcp-server-ssh/node_modules/cpu-features/deps/cpu_features/src/impl_aarch64_windows.c

@@ -0,0 +1,138 @@
+// Copyright 2023 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include "cpu_features_macros.h"
+
+#ifdef CPU_FEATURES_ARCH_AARCH64
+#ifdef CPU_FEATURES_OS_WINDOWS
+
+#include "cpuinfo_aarch64.h"
+
+////////////////////////////////////////////////////////////////////////////////
+// Definitions for introspection.
+////////////////////////////////////////////////////////////////////////////////
+#define INTROSPECTION_TABLE                  \
+  LINE(AARCH64_FP, fp, , , )                 \
+  LINE(AARCH64_ASIMD, asimd, , , )           \
+  LINE(AARCH64_EVTSTRM, evtstrm, , , )       \
+  LINE(AARCH64_AES, aes, , , )               \
+  LINE(AARCH64_PMULL, pmull, , , )           \
+  LINE(AARCH64_SHA1, sha1, , , )             \
+  LINE(AARCH64_SHA2, sha2, , , )             \
+  LINE(AARCH64_CRC32, crc32, , , )           \
+  LINE(AARCH64_ATOMICS, atomics, , , )       \
+  LINE(AARCH64_FPHP, fphp, , , )             \
+  LINE(AARCH64_ASIMDHP, asimdhp, , , )       \
+  LINE(AARCH64_CPUID, cpuid, , , )           \
+  LINE(AARCH64_ASIMDRDM, asimdrdm, , , )     \
+  LINE(AARCH64_JSCVT, jscvt, , , )           \
+  LINE(AARCH64_FCMA, fcma, , , )             \
+  LINE(AARCH64_LRCPC, lrcpc, , , )           \
+  LINE(AARCH64_DCPOP, dcpop, , , )           \
+  LINE(AARCH64_SHA3, sha3, , , )             \
+  LINE(AARCH64_SM3, sm3, , , )               \
+  LINE(AARCH64_SM4, sm4, , , )               \
+  LINE(AARCH64_ASIMDDP, asimddp, , , )       \
+  LINE(AARCH64_SHA512, sha512, , , )         \
+  LINE(AARCH64_SVE, sve, , , )               \
+  LINE(AARCH64_ASIMDFHM, asimdfhm, , , )     \
+  LINE(AARCH64_DIT, dit, , , )               \
+  LINE(AARCH64_USCAT, uscat, , , )           \
+  LINE(AARCH64_ILRCPC, ilrcpc, , , )         \
+  LINE(AARCH64_FLAGM, flagm, , , )           \
+  LINE(AARCH64_SSBS, ssbs, , , )             \
+  LINE(AARCH64_SB, sb, , , )                 \
+  LINE(AARCH64_PACA, paca, , , )             \
+  LINE(AARCH64_PACG, pacg, , , )             \
+  LINE(AARCH64_DCPODP, dcpodp, , , )         \
+  LINE(AARCH64_SVE2, sve2, , , )             \
+  LINE(AARCH64_SVEAES, sveaes, , , )         \
+  LINE(AARCH64_SVEPMULL, svepmull, , , )     \
+  LINE(AARCH64_SVEBITPERM, svebitperm, , , ) \
+  LINE(AARCH64_SVESHA3, svesha3, , , )       \
+  LINE(AARCH64_SVESM4, svesm4, , , )         \
+  LINE(AARCH64_FLAGM2, flagm2, , , )         \
+  LINE(AARCH64_FRINT, frint, , , )           \
+  LINE(AARCH64_SVEI8MM, svei8mm, , , )       \
+  LINE(AARCH64_SVEF32MM, svef32mm, , , )     \
+  LINE(AARCH64_SVEF64MM, svef64mm, , , )     \
+  LINE(AARCH64_SVEBF16, svebf16, , , )       \
+  LINE(AARCH64_I8MM, i8mm, , , )             \
+  LINE(AARCH64_BF16, bf16, , , )             \
+  LINE(AARCH64_DGH, dgh, , , )               \
+  LINE(AARCH64_RNG, rng, , , )               \
+  LINE(AARCH64_BTI, bti, , , )               \
+  LINE(AARCH64_MTE, mte, , , )               \
+  LINE(AARCH64_ECV, ecv, , , )               \
+  LINE(AARCH64_AFP, afp, , , )               \
+  LINE(AARCH64_RPRES, rpres, , , )
+#define INTROSPECTION_PREFIX Aarch64
+#define INTROSPECTION_ENUM_PREFIX AARCH64
+#include "define_introspection.inl"
+
+////////////////////////////////////////////////////////////////////////////////
+// Implementation.
+////////////////////////////////////////////////////////////////////////////////
+
+#include <stdbool.h>
+
+#include "internal/windows_utils.h"
+
+#ifdef CPU_FEATURES_MOCK_CPUID_AARCH64
+extern bool GetWindowsIsProcessorFeaturePresent(DWORD);
+extern WORD GetWindowsNativeSystemInfoProcessorRevision();
+#else  // CPU_FEATURES_MOCK_CPUID_AARCH64
+static bool GetWindowsIsProcessorFeaturePresent(DWORD dwProcessorFeature) {
+  return IsProcessorFeaturePresent(dwProcessorFeature);
+}
+
+static WORD GetWindowsNativeSystemInfoProcessorRevision() {
+  SYSTEM_INFO system_info;
+  GetNativeSystemInfo(&system_info);
+  return system_info.wProcessorRevision;
+}
+#endif
+
+static const Aarch64Info kEmptyAarch64Info;
+
+Aarch64Info GetAarch64Info(void) {
+  Aarch64Info info = kEmptyAarch64Info;
+  info.revision = GetWindowsNativeSystemInfoProcessorRevision();
+  info.features.fp =
+      GetWindowsIsProcessorFeaturePresent(PF_ARM_VFP_32_REGISTERS_AVAILABLE);
+  info.features.asimd =
+      GetWindowsIsProcessorFeaturePresent(PF_ARM_NEON_INSTRUCTIONS_AVAILABLE);
+  info.features.crc32 = GetWindowsIsProcessorFeaturePresent(
+      PF_ARM_V8_CRC32_INSTRUCTIONS_AVAILABLE);
+  info.features.asimddp =
+      GetWindowsIsProcessorFeaturePresent(PF_ARM_V82_DP_INSTRUCTIONS_AVAILABLE);
+  info.features.jscvt = GetWindowsIsProcessorFeaturePresent(
+      PF_ARM_V83_JSCVT_INSTRUCTIONS_AVAILABLE);
+  info.features.lrcpc = GetWindowsIsProcessorFeaturePresent(
+      PF_ARM_V83_LRCPC_INSTRUCTIONS_AVAILABLE);
+  info.features.atomics = GetWindowsIsProcessorFeaturePresent(
+      PF_ARM_V81_ATOMIC_INSTRUCTIONS_AVAILABLE);
+
+
+  bool is_crypto_available = GetWindowsIsProcessorFeaturePresent(
+      PF_ARM_V8_CRYPTO_INSTRUCTIONS_AVAILABLE);
+  info.features.aes = is_crypto_available;
+  info.features.sha1 = is_crypto_available;
+  info.features.sha2 = is_crypto_available;
+  info.features.pmull = is_crypto_available;
+  return info;
+}
+
+#endif  // CPU_FEATURES_OS_WINDOWS
+#endif  // CPU_FEATURES_ARCH_AARCH64

mcp-server-ssh/node_modules/cpu-features/deps/cpu_features/src/impl_arm_linux_or_android.c

@@ -0,0 +1,212 @@
+// Copyright 2017 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include "cpu_features_macros.h"
+
+#ifdef CPU_FEATURES_ARCH_ARM
+#if defined(CPU_FEATURES_OS_LINUX) || defined(CPU_FEATURES_OS_ANDROID)
+
+#include "cpuinfo_arm.h"
+
+////////////////////////////////////////////////////////////////////////////////
+// Definitions for introspection.
+////////////////////////////////////////////////////////////////////////////////
+#define INTROSPECTION_TABLE                                        \
+  LINE(ARM_SWP, swp, "swp", ARM_HWCAP_SWP, 0)                      \
+  LINE(ARM_HALF, half, "half", ARM_HWCAP_HALF, 0)                  \
+  LINE(ARM_THUMB, thumb, "thumb", ARM_HWCAP_THUMB, 0)              \
+  LINE(ARM_26BIT, _26bit, "26bit", ARM_HWCAP_26BIT, 0)             \
+  LINE(ARM_FASTMULT, fastmult, "fastmult", ARM_HWCAP_FAST_MULT, 0) \
+  LINE(ARM_FPA, fpa, "fpa", ARM_HWCAP_FPA, 0)                      \
+  LINE(ARM_VFP, vfp, "vfp", ARM_HWCAP_VFP, 0)                      \
+  LINE(ARM_EDSP, edsp, "edsp", ARM_HWCAP_EDSP, 0)                  \
+  LINE(ARM_JAVA, java, "java", ARM_HWCAP_JAVA, 0)                  \
+  LINE(ARM_IWMMXT, iwmmxt, "iwmmxt", ARM_HWCAP_IWMMXT, 0)          \
+  LINE(ARM_CRUNCH, crunch, "crunch", ARM_HWCAP_CRUNCH, 0)          \
+  LINE(ARM_THUMBEE, thumbee, "thumbee", ARM_HWCAP_THUMBEE, 0)      \
+  LINE(ARM_NEON, neon, "neon", ARM_HWCAP_NEON, 0)                  \
+  LINE(ARM_VFPV3, vfpv3, "vfpv3", ARM_HWCAP_VFPV3, 0)              \
+  LINE(ARM_VFPV3D16, vfpv3d16, "vfpv3d16", ARM_HWCAP_VFPV3D16, 0)  \
+  LINE(ARM_TLS, tls, "tls", ARM_HWCAP_TLS, 0)                      \
+  LINE(ARM_VFPV4, vfpv4, "vfpv4", ARM_HWCAP_VFPV4, 0)              \
+  LINE(ARM_IDIVA, idiva, "idiva", ARM_HWCAP_IDIVA, 0)              \
+  LINE(ARM_IDIVT, idivt, "idivt", ARM_HWCAP_IDIVT, 0)              \
+  LINE(ARM_VFPD32, vfpd32, "vfpd32", ARM_HWCAP_VFPD32, 0)          \
+  LINE(ARM_LPAE, lpae, "lpae", ARM_HWCAP_LPAE, 0)                  \
+  LINE(ARM_EVTSTRM, evtstrm, "evtstrm", ARM_HWCAP_EVTSTRM, 0)      \
+  LINE(ARM_AES, aes, "aes", 0, ARM_HWCAP2_AES)                     \
+  LINE(ARM_PMULL, pmull, "pmull", 0, ARM_HWCAP2_PMULL)             \
+  LINE(ARM_SHA1, sha1, "sha1", 0, ARM_HWCAP2_SHA1)                 \
+  LINE(ARM_SHA2, sha2, "sha2", 0, ARM_HWCAP2_SHA2)                 \
+  LINE(ARM_CRC32, crc32, "crc32", 0, ARM_HWCAP2_CRC32)
+#define INTROSPECTION_PREFIX Arm
+#define INTROSPECTION_ENUM_PREFIX ARM
+#include "define_introspection_and_hwcaps.inl"
+
+////////////////////////////////////////////////////////////////////////////////
+// Implementation.
+////////////////////////////////////////////////////////////////////////////////
+
+#include <ctype.h>
+#include <stdbool.h>
+
+#include "internal/bit_utils.h"
+#include "internal/filesystem.h"
+#include "internal/stack_line_reader.h"
+#include "internal/string_view.h"
+
+typedef struct {
+  bool processor_reports_armv6;
+  bool hardware_reports_goldfish;
+} ProcCpuInfoData;
+
+static int IndexOfNonDigit(StringView str) {
+  size_t index = 0;
+  while (str.size && isdigit(CpuFeatures_StringView_Front(str))) {
+    str = CpuFeatures_StringView_PopFront(str, 1);
+    ++index;
+  }
+  return index;
+}
+
+static bool HandleArmLine(const LineResult result, ArmInfo* const info,
+                          ProcCpuInfoData* const proc_info) {
+  StringView line = result.line;
+  StringView key, value;
+  if (CpuFeatures_StringView_GetAttributeKeyValue(line, &key, &value)) {
+    if (CpuFeatures_StringView_IsEquals(key, str("Features"))) {
+      for (size_t i = 0; i < ARM_LAST_; ++i) {
+        kSetters[i](&info->features, CpuFeatures_StringView_HasWord(
+                                         value, kCpuInfoFlags[i], ' '));
+      }
+    } else if (CpuFeatures_StringView_IsEquals(key, str("CPU implementer"))) {
+      info->implementer = CpuFeatures_StringView_ParsePositiveNumber(value);
+    } else if (CpuFeatures_StringView_IsEquals(key, str("CPU variant"))) {
+      info->variant = CpuFeatures_StringView_ParsePositiveNumber(value);
+    } else if (CpuFeatures_StringView_IsEquals(key, str("CPU part"))) {
+      info->part = CpuFeatures_StringView_ParsePositiveNumber(value);
+    } else if (CpuFeatures_StringView_IsEquals(key, str("CPU revision"))) {
+      info->revision = CpuFeatures_StringView_ParsePositiveNumber(value);
+    } else if (CpuFeatures_StringView_IsEquals(key, str("CPU architecture"))) {
+      // CPU architecture is a number that may be followed by letters. e.g.
+      // "6TEJ", "7".
+      const StringView digits =
+          CpuFeatures_StringView_KeepFront(value, IndexOfNonDigit(value));
+      info->architecture = CpuFeatures_StringView_ParsePositiveNumber(digits);
+    } else if (CpuFeatures_StringView_IsEquals(key, str("Processor")) ||
+               CpuFeatures_StringView_IsEquals(key, str("model name"))) {
+      // Android reports this in a non-Linux standard "Processor" but sometimes
+      // also in "model name", Linux reports it only in "model name"
+      // see RaspberryPiZero (Linux) vs InvalidArmv7 (Android) test-cases
+      proc_info->processor_reports_armv6 =
+          CpuFeatures_StringView_IndexOf(value, str("(v6l)")) >= 0;
+    } else if (CpuFeatures_StringView_IsEquals(key, str("Hardware"))) {
+      proc_info->hardware_reports_goldfish =
+          CpuFeatures_StringView_IsEquals(value, str("Goldfish"));
+    }
+  }
+  return !result.eof;
+}
+
+uint32_t GetArmCpuId(const ArmInfo* const info) {
+  return (ExtractBitRange(info->implementer, 7, 0) << 24) |
+         (ExtractBitRange(info->variant, 3, 0) << 20) |
+         (ExtractBitRange(info->part, 11, 0) << 4) |
+         (ExtractBitRange(info->revision, 3, 0) << 0);
+}
+
+static void FixErrors(ArmInfo* const info,
+                      ProcCpuInfoData* const proc_cpu_info_data) {
+  // Fixing Samsung kernel reporting invalid cpu architecture.
+  // http://code.google.com/p/android/issues/detail?id=10812
+  if (proc_cpu_info_data->processor_reports_armv6 && info->architecture >= 7) {
+    info->architecture = 6;
+  }
+
+  // Handle kernel configuration bugs that prevent the correct reporting of CPU
+  // features.
+  switch (GetArmCpuId(info)) {
+    case 0x4100C080:
+      // Special case: The emulator-specific Android 4.2 kernel fails to report
+      // support for the 32-bit ARM IDIV instruction. Technically, this is a
+      // feature of the virtual CPU implemented by the emulator. Note that it
+      // could also support Thumb IDIV in the future, and this will have to be
+      // slightly updated.
+      if (info->architecture >= 7 &&
+          proc_cpu_info_data->hardware_reports_goldfish) {
+        info->features.idiva = true;
+      }
+      break;
+    case 0x511004D0:
+      // https://crbug.com/341598.
+      info->features.neon = false;
+      break;
+  }
+
+  // Some Qualcomm Krait kernels forget to report IDIV support.
+  // https://github.com/torvalds/linux/commit/120ecfafabec382c4feb79ff159ef42a39b6d33b
+  if (info->implementer == 0x51 && info->architecture == 7 &&
+      (info->part == 0x4d || info->part == 0x6f)) {
+    info->features.idiva = true;
+    info->features.idivt = true;
+  }
+
+  // Propagate cpu features.
+  if (info->features.vfpv4) info->features.vfpv3 = true;
+  if (info->features.neon) info->features.vfpv3 = true;
+  if (info->features.vfpv3) info->features.vfp = true;
+}
+
+static void FillProcCpuInfoData(ArmInfo* const info,
+                                ProcCpuInfoData* proc_cpu_info_data) {
+  const int fd = CpuFeatures_OpenFile("/proc/cpuinfo");
+  if (fd >= 0) {
+    StackLineReader reader;
+    StackLineReader_Initialize(&reader, fd);
+    for (;;) {
+      if (!HandleArmLine(StackLineReader_NextLine(&reader), info,
+                         proc_cpu_info_data)) {
+        break;
+      }
+    }
+    CpuFeatures_CloseFile(fd);
+  }
+}
+
+static const ArmInfo kEmptyArmInfo;
+
+static const ProcCpuInfoData kEmptyProcCpuInfoData;
+
+ArmInfo GetArmInfo(void) {
+  // capabilities are fetched from both getauxval and /proc/cpuinfo so we can
+  // have some information if the executable is sandboxed (aka no access to
+  // /proc/cpuinfo).
+  ArmInfo info = kEmptyArmInfo;
+  ProcCpuInfoData proc_cpu_info_data = kEmptyProcCpuInfoData;
+
+  FillProcCpuInfoData(&info, &proc_cpu_info_data);
+  const HardwareCapabilities hwcaps = CpuFeatures_GetHardwareCapabilities();
+  for (size_t i = 0; i < ARM_LAST_; ++i) {
+    if (CpuFeatures_IsHwCapsSet(kHardwareCapabilities[i], hwcaps)) {
+      kSetters[i](&info.features, true);
+    }
+  }
+
+  FixErrors(&info, &proc_cpu_info_data);
+
+  return info;
+}
+
+#endif  // defined(CPU_FEATURES_OS_LINUX) || defined(CPU_FEATURES_OS_ANDROID)
+#endif  // CPU_FEATURES_ARCH_ARM

mcp-server-ssh/node_modules/cpu-features/deps/cpu_features/src/impl_mips_linux_or_android.c

@@ -0,0 +1,93 @@
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include "cpu_features_macros.h"
+
+#ifdef CPU_FEATURES_ARCH_MIPS
+#if defined(CPU_FEATURES_OS_LINUX) || defined(CPU_FEATURES_OS_ANDROID)
+
+#include "cpuinfo_mips.h"
+
+////////////////////////////////////////////////////////////////////////////////
+// Definitions for introspection.
+////////////////////////////////////////////////////////////////////////////////
+#define INTROSPECTION_TABLE                                     \
+  LINE(MIPS_MSA, msa, "msa", MIPS_HWCAP_MSA, 0)                 \
+  LINE(MIPS_EVA, eva, "eva", 0, 0)                              \
+  LINE(MIPS_R6, r6, "r6", MIPS_HWCAP_R6, 0)                     \
+  LINE(MIPS_MIPS16, mips16, "mips16", MIPS_HWCAP_MIPS16, 0)     \
+  LINE(MIPS_MDMX, mdmx, "mdmx", MIPS_HWCAP_MDMX, 0)             \
+  LINE(MIPS_MIPS3D, mips3d, "mips3d", MIPS_HWCAP_MIPS3D, 0)     \
+  LINE(MIPS_SMART, smart, "smartmips", MIPS_HWCAP_SMARTMIPS, 0) \
+  LINE(MIPS_DSP, dsp, "dsp", MIPS_HWCAP_DSP, 0)
+#define INTROSPECTION_PREFIX Mips
+#define INTROSPECTION_ENUM_PREFIX MIPS
+#include "define_introspection_and_hwcaps.inl"
+
+////////////////////////////////////////////////////////////////////////////////
+// Implementation.
+////////////////////////////////////////////////////////////////////////////////
+
+#include "internal/filesystem.h"
+#include "internal/hwcaps.h"
+#include "internal/stack_line_reader.h"
+#include "internal/string_view.h"
+
+static bool HandleMipsLine(const LineResult result,
+                           MipsFeatures* const features) {
+  StringView key, value;
+  // See tests for an example.
+  if (CpuFeatures_StringView_GetAttributeKeyValue(result.line, &key, &value)) {
+    if (CpuFeatures_StringView_IsEquals(key, str("ASEs implemented"))) {
+      for (size_t i = 0; i < MIPS_LAST_; ++i) {
+        kSetters[i](features, CpuFeatures_StringView_HasWord(
+                                  value, kCpuInfoFlags[i], ' '));
+      }
+    }
+  }
+  return !result.eof;
+}
+
+static void FillProcCpuInfoData(MipsFeatures* const features) {
+  const int fd = CpuFeatures_OpenFile("/proc/cpuinfo");
+  if (fd >= 0) {
+    StackLineReader reader;
+    StackLineReader_Initialize(&reader, fd);
+    for (;;) {
+      if (!HandleMipsLine(StackLineReader_NextLine(&reader), features)) {
+        break;
+      }
+    }
+    CpuFeatures_CloseFile(fd);
+  }
+}
+
+static const MipsInfo kEmptyMipsInfo;
+
+MipsInfo GetMipsInfo(void) {
+  // capabilities are fetched from both getauxval and /proc/cpuinfo so we can
+  // have some information if the executable is sandboxed (aka no access to
+  // /proc/cpuinfo).
+  MipsInfo info = kEmptyMipsInfo;
+
+  FillProcCpuInfoData(&info.features);
+  const HardwareCapabilities hwcaps = CpuFeatures_GetHardwareCapabilities();
+  for (size_t i = 0; i < MIPS_LAST_; ++i) {
+    if (CpuFeatures_IsHwCapsSet(kHardwareCapabilities[i], hwcaps)) {
+      kSetters[i](&info.features, true);
+    }
+  }
+  return info;
+}
+
+#endif  //  defined(CPU_FEATURES_OS_LINUX) || defined(CPU_FEATURES_OS_ANDROID)
+#endif  // CPU_FEATURES_ARCH_MIPS

mcp-server-ssh/node_modules/cpu-features/deps/cpu_features/src/impl_ppc_linux.c

@@ -0,0 +1,163 @@
+// Copyright 2018 IBM.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include "cpu_features_macros.h"
+
+#ifdef CPU_FEATURES_ARCH_PPC
+#ifdef CPU_FEATURES_OS_LINUX
+
+#include "cpuinfo_ppc.h"
+
+////////////////////////////////////////////////////////////////////////////////
+// Definitions for introspection.
+////////////////////////////////////////////////////////////////////////////////
+#define INTROSPECTION_TABLE                                                    \
+  LINE(PPC_32, ppc32, "ppc32", PPC_FEATURE_32, 0)                              \
+  LINE(PPC_64, ppc64, "ppc64", PPC_FEATURE_64, 0)                              \
+  LINE(PPC_601_INSTR, ppc601, "ppc601", PPC_FEATURE_601_INSTR, 0)              \
+  LINE(PPC_HAS_ALTIVEC, altivec, "altivec", PPC_FEATURE_HAS_ALTIVEC, 0)        \
+  LINE(PPC_HAS_FPU, fpu, "fpu", PPC_FEATURE_HAS_FPU, 0)                        \
+  LINE(PPC_HAS_MMU, mmu, "mmu", PPC_FEATURE_HAS_MMU, 0)                        \
+  LINE(PPC_HAS_4xxMAC, mac_4xx, "4xxmac", PPC_FEATURE_HAS_4xxMAC, 0)           \
+  LINE(PPC_UNIFIED_CACHE, unifiedcache, "ucache", PPC_FEATURE_UNIFIED_CACHE,   \
+       0)                                                                      \
+  LINE(PPC_HAS_SPE, spe, "spe", PPC_FEATURE_HAS_SPE, 0)                        \
+  LINE(PPC_HAS_EFP_SINGLE, efpsingle, "efpsingle", PPC_FEATURE_HAS_EFP_SINGLE, \
+       0)                                                                      \
+  LINE(PPC_HAS_EFP_DOUBLE, efpdouble, "efpdouble", PPC_FEATURE_HAS_EFP_DOUBLE, \
+       0)                                                                      \
+  LINE(PPC_NO_TB, no_tb, "notb", PPC_FEATURE_NO_TB, 0)                         \
+  LINE(PPC_POWER4, power4, "power4", PPC_FEATURE_POWER4, 0)                    \
+  LINE(PPC_POWER5, power5, "power5", PPC_FEATURE_POWER5, 0)                    \
+  LINE(PPC_POWER5_PLUS, power5plus, "power5+", PPC_FEATURE_POWER5_PLUS, 0)     \
+  LINE(PPC_CELL, cell, "cellbe", PPC_FEATURE_CELL, 0)                          \
+  LINE(PPC_BOOKE, booke, "booke", PPC_FEATURE_BOOKE, 0)                        \
+  LINE(PPC_SMT, smt, "smt", PPC_FEATURE_SMT, 0)                                \
+  LINE(PPC_ICACHE_SNOOP, icachesnoop, "ic_snoop", PPC_FEATURE_ICACHE_SNOOP, 0) \
+  LINE(PPC_ARCH_2_05, arch205, "arch_2_05", PPC_FEATURE_ARCH_2_05, 0)          \
+  LINE(PPC_PA6T, pa6t, "pa6t", PPC_FEATURE_PA6T, 0)                            \
+  LINE(PPC_HAS_DFP, dfp, "dfp", PPC_FEATURE_HAS_DFP, 0)                        \
+  LINE(PPC_POWER6_EXT, power6ext, "power6x", PPC_FEATURE_POWER6_EXT, 0)        \
+  LINE(PPC_ARCH_2_06, arch206, "arch_2_06", PPC_FEATURE_ARCH_2_06, 0)          \
+  LINE(PPC_HAS_VSX, vsx, "vsx", PPC_FEATURE_HAS_VSX, 0)                        \
+  LINE(PPC_PSERIES_PERFMON_COMPAT, pseries_perfmon_compat, "archpmu",          \
+       PPC_FEATURE_PSERIES_PERFMON_COMPAT, 0)                                  \
+  LINE(PPC_TRUE_LE, truele, "true_le", PPC_FEATURE_TRUE_LE, 0)                 \
+  LINE(PPC_PPC_LE, ppcle, "ppcle", PPC_FEATURE_PPC_LE, 0)                      \
+  LINE(PPC_ARCH_2_07, arch207, "arch_2_07", 0, PPC_FEATURE2_ARCH_2_07)         \
+  LINE(PPC_HTM, htm, "htm", 0, PPC_FEATURE2_HTM)                               \
+  LINE(PPC_DSCR, dscr, "dscr", 0, PPC_FEATURE2_DSCR)                           \
+  LINE(PPC_EBB, ebb, "ebb", 0, PPC_FEATURE2_EBB)                               \
+  LINE(PPC_ISEL, isel, "isel", 0, PPC_FEATURE2_ISEL)                           \
+  LINE(PPC_TAR, tar, "tar", 0, PPC_FEATURE2_TAR)                               \
+  LINE(PPC_VEC_CRYPTO, vcrypto, "vcrypto", 0, PPC_FEATURE2_VEC_CRYPTO)         \
+  LINE(PPC_HTM_NOSC, htm_nosc, "htm-nosc", 0, PPC_FEATURE2_HTM_NOSC)           \
+  LINE(PPC_ARCH_3_00, arch300, "arch_3_00", 0, PPC_FEATURE2_ARCH_3_00)         \
+  LINE(PPC_HAS_IEEE128, ieee128, "ieee128", 0, PPC_FEATURE2_HAS_IEEE128)       \
+  LINE(PPC_DARN, darn, "darn", 0, PPC_FEATURE2_DARN)                           \
+  LINE(PPC_SCV, scv, "scv", 0, PPC_FEATURE2_SCV)                               \
+  LINE(PPC_HTM_NO_SUSPEND, htm_no_suspend, "htm-no-suspend", 0,                \
+       PPC_FEATURE2_HTM_NO_SUSPEND)
+#undef PPC // Remove conflict with compiler generated preprocessor
+#define INTROSPECTION_PREFIX PPC
+#define INTROSPECTION_ENUM_PREFIX PPC
+#include "define_introspection_and_hwcaps.inl"
+
+////////////////////////////////////////////////////////////////////////////////
+// Implementation.
+////////////////////////////////////////////////////////////////////////////////
+
+#include <stdbool.h>
+
+#include "internal/bit_utils.h"
+#include "internal/filesystem.h"
+#include "internal/hwcaps.h"
+#include "internal/stack_line_reader.h"
+#include "internal/string_view.h"
+
+static bool HandlePPCLine(const LineResult result,
+                          PPCPlatformStrings* const strings) {
+  StringView line = result.line;
+  StringView key, value;
+  if (CpuFeatures_StringView_GetAttributeKeyValue(line, &key, &value)) {
+    if (CpuFeatures_StringView_HasWord(key, "platform", ' ')) {
+      CpuFeatures_StringView_CopyString(value, strings->platform,
+                                        sizeof(strings->platform));
+    } else if (CpuFeatures_StringView_IsEquals(key, str("model"))) {
+      CpuFeatures_StringView_CopyString(value, strings->model,
+                                        sizeof(strings->platform));
+    } else if (CpuFeatures_StringView_IsEquals(key, str("machine"))) {
+      CpuFeatures_StringView_CopyString(value, strings->machine,
+                                        sizeof(strings->platform));
+    } else if (CpuFeatures_StringView_IsEquals(key, str("cpu"))) {
+      CpuFeatures_StringView_CopyString(value, strings->cpu,
+                                        sizeof(strings->platform));
+    }
+  }
+  return !result.eof;
+}
+
+static void FillProcCpuInfoData(PPCPlatformStrings* const strings) {
+  const int fd = CpuFeatures_OpenFile("/proc/cpuinfo");
+  if (fd >= 0) {
+    StackLineReader reader;
+    StackLineReader_Initialize(&reader, fd);
+    for (;;) {
+      if (!HandlePPCLine(StackLineReader_NextLine(&reader), strings)) {
+        break;
+      }
+    }
+    CpuFeatures_CloseFile(fd);
+  }
+}
+
+static const PPCInfo kEmptyPPCInfo;
+
+PPCInfo GetPPCInfo(void) {
+  /*
+   * On Power feature flags aren't currently in cpuinfo so we only look at
+   * the auxilary vector.
+   */
+  PPCInfo info = kEmptyPPCInfo;
+  const HardwareCapabilities hwcaps = CpuFeatures_GetHardwareCapabilities();
+  for (size_t i = 0; i < PPC_LAST_; ++i) {
+    if (CpuFeatures_IsHwCapsSet(kHardwareCapabilities[i], hwcaps)) {
+      kSetters[i](&info.features, true);
+    }
+  }
+  return info;
+}
+
+static const PPCPlatformStrings kEmptyPPCPlatformStrings;
+
+PPCPlatformStrings GetPPCPlatformStrings(void) {
+  PPCPlatformStrings strings = kEmptyPPCPlatformStrings;
+  const char* platform = CpuFeatures_GetPlatformPointer();
+  const char* base_platform = CpuFeatures_GetBasePlatformPointer();
+
+  FillProcCpuInfoData(&strings);
+
+  if (platform != NULL)
+    CpuFeatures_StringView_CopyString(str(platform), strings.type.platform,
+                                      sizeof(strings.type.platform));
+  if (base_platform != NULL)
+    CpuFeatures_StringView_CopyString(str(base_platform),
+                                      strings.type.base_platform,
+                                      sizeof(strings.type.base_platform));
+
+  return strings;
+}
+
+#endif  // CPU_FEATURES_OS_LINUX
+#endif  // CPU_FEATURES_ARCH_PPC

mcp-server-ssh/node_modules/cpu-features/deps/cpu_features/src/impl_riscv_linux.c

@@ -0,0 +1,111 @@
+// Copyright 2022 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include "cpu_features_macros.h"
+
+#ifdef CPU_FEATURES_ARCH_RISCV
+#if defined(CPU_FEATURES_OS_LINUX)
+
+#include "cpuinfo_riscv.h"
+
+// According to
+// https://elixir.bootlin.com/linux/latest/source/Documentation/devicetree/bindings/riscv/cpus.yaml
+// isa string should match the following regex
+// ^rv(?:64|32)imaf?d?q?c?b?v?k?h?(?:_[hsxz](?:[a-z])+)*$
+//
+// This means we can test for features in this exact order except for Z
+// extensions.
+
+////////////////////////////////////////////////////////////////////////////////
+// Definitions for introspection.
+////////////////////////////////////////////////////////////////////////////////
+#define INTROSPECTION_TABLE                            \
+  LINE(RISCV_RV32I, RV32I, "rv32i", RISCV_HWCAP_32, 0) \
+  LINE(RISCV_RV64I, RV64I, "rv64i", RISCV_HWCAP_64, 0) \
+  LINE(RISCV_M, M, "m", RISCV_HWCAP_M, 0)              \
+  LINE(RISCV_A, A, "a", RISCV_HWCAP_A, 0)              \
+  LINE(RISCV_F, F, "f", RISCV_HWCAP_F, 0)              \
+  LINE(RISCV_D, D, "d", RISCV_HWCAP_D, 0)              \
+  LINE(RISCV_Q, Q, "q", RISCV_HWCAP_Q, 0)              \
+  LINE(RISCV_C, C, "c", RISCV_HWCAP_C, 0)              \
+  LINE(RISCV_V, V, "v", RISCV_HWCAP_V, 0)              \
+  LINE(RISCV_Zicsr, Zicsr, "_zicsr", 0, 0)             \
+  LINE(RISCV_Zifencei, Zifencei, "_zifencei", 0, 0)
+#define INTROSPECTION_PREFIX Riscv
+#define INTROSPECTION_ENUM_PREFIX RISCV
+#include "define_introspection_and_hwcaps.inl"
+
+////////////////////////////////////////////////////////////////////////////////
+// Implementation.
+////////////////////////////////////////////////////////////////////////////////
+
+#include <stdbool.h>
+#include <stdio.h>
+
+#include "internal/filesystem.h"
+#include "internal/stack_line_reader.h"
+
+static const RiscvInfo kEmptyRiscvInfo;
+
+static void HandleRiscVIsaLine(StringView line, RiscvFeatures* const features) {
+  for (size_t i = 0; i < RISCV_LAST_; ++i) {
+    StringView flag = str(kCpuInfoFlags[i]);
+    int index_of_flag = CpuFeatures_StringView_IndexOf(line, flag);
+    bool is_set = index_of_flag != -1;
+    kSetters[i](features, is_set);
+    if (is_set)
+      line = CpuFeatures_StringView_PopFront(line, index_of_flag + flag.size);
+  }
+}
+
+static bool HandleRiscVLine(const LineResult result, RiscvInfo* const info) {
+  StringView line = result.line;
+  StringView key, value;
+  if (CpuFeatures_StringView_GetAttributeKeyValue(line, &key, &value)) {
+    if (CpuFeatures_StringView_IsEquals(key, str("isa"))) {
+      HandleRiscVIsaLine(value, &info->features);
+    } else if (CpuFeatures_StringView_IsEquals(key, str("uarch"))) {
+      int index = CpuFeatures_StringView_IndexOfChar(value, ',');
+      if (index == -1) return true;
+      StringView vendor = CpuFeatures_StringView_KeepFront(value, index);
+      StringView uarch = CpuFeatures_StringView_PopFront(value, index + 1);
+      CpuFeatures_StringView_CopyString(vendor, info->vendor,
+                                        sizeof(info->vendor));
+      CpuFeatures_StringView_CopyString(uarch, info->uarch,
+                                        sizeof(info->uarch));
+    }
+  }
+  return !result.eof;
+}
+
+static void FillProcCpuInfoData(RiscvInfo* const info) {
+  const int fd = CpuFeatures_OpenFile("/proc/cpuinfo");
+  if (fd >= 0) {
+    StackLineReader reader;
+    StackLineReader_Initialize(&reader, fd);
+    for (;;) {
+      if (!HandleRiscVLine(StackLineReader_NextLine(&reader), info)) break;
+    }
+    CpuFeatures_CloseFile(fd);
+  }
+}
+
+RiscvInfo GetRiscvInfo(void) {
+  RiscvInfo info = kEmptyRiscvInfo;
+  FillProcCpuInfoData(&info);
+  return info;
+}
+
+#endif  //  defined(CPU_FEATURES_OS_LINUX) || defined(CPU_FEATURES_OS_ANDROID)
+#endif  // CPU_FEATURES_ARCH_RISCV

mcp-server-ssh/node_modules/cpu-features/deps/cpu_features/src/impl_s390x_linux.c

@@ -0,0 +1,120 @@
+// Copyright 2022 IBM.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include "cpu_features_macros.h"
+
+#ifdef CPU_FEATURES_ARCH_S390X
+#ifdef CPU_FEATURES_OS_LINUX
+
+#include "cpuinfo_s390x.h"
+
+////////////////////////////////////////////////////////////////////////////////
+// Definitions for introspection.
+////////////////////////////////////////////////////////////////////////////////
+#define INTROSPECTION_TABLE                                                    \
+  LINE(S390_ESAN3, esan3, "esan3", HWCAP_S390_ESAN3, 0)                              \
+  LINE(S390_ZARCH, zarch, "zarch", HWCAP_S390_ZARCH, 0)                              \
+  LINE(S390_STFLE, stfle, "stfle", HWCAP_S390_STFLE, 0)                              \
+  LINE(S390_MSA, msa, "msa", HWCAP_S390_MSA, 0)                                      \
+  LINE(S390_LDISP, ldisp, "ldisp", HWCAP_S390_LDISP, 0)                              \
+  LINE(S390_EIMM, eimm, "eimm", HWCAP_S390_EIMM, 0)                                  \
+  LINE(S390_DFP, dfp, "dfp", HWCAP_S390_DFP, 0)                                      \
+  LINE(S390_EDAT, edat, "edat", HWCAP_S390_HPAGE, 0)                                 \
+  LINE(S390_ETF3EH, etf3eh, "etf3eh", HWCAP_S390_ETF3EH, 0)                          \
+  LINE(S390_HIGHGPRS, highgprs, "highgprs", HWCAP_S390_HIGH_GPRS, 0)                 \
+  LINE(S390_TE, te, "te", HWCAP_S390_TE, 0)                                          \
+  LINE(S390_VX, vx, "vx", HWCAP_S390_VXRS, 0)                                        \
+  LINE(S390_VXD, vxd, "vxd", HWCAP_S390_VXRS_BCD, 0)                                 \
+  LINE(S390_VXE, vxe, "vxe", HWCAP_S390_VXRS_EXT, 0)                                 \
+  LINE(S390_GS, gs, "gs", HWCAP_S390_GS, 0)                                          \
+  LINE(S390_VXE2, vxe2, "vxe2", HWCAP_S390_VXRS_EXT2, 0)                             \
+  LINE(S390_VXP, vxp, "vxp", HWCAP_S390_VXRS_PDE, 0)                                 \
+  LINE(S390_SORT, sort, "sort", HWCAP_S390_SORT, 0)                                  \
+  LINE(S390_DFLT, dflt, "dflt", HWCAP_S390_DFLT, 0)                                  \
+  LINE(S390_VXP2, vxp2, "vxp2", HWCAP_S390_VXRS_PDE2, 0)                             \
+  LINE(S390_NNPA, nnpa, "nnpa", HWCAP_S390_NNPA, 0)                                  \
+  LINE(S390_PCIMIO, pcimio, "pcimio", HWCAP_S390_PCI_MIO, 0)                         \
+  LINE(S390_SIE, sie, "sie", HWCAP_S390_SIE, 0)
+#define INTROSPECTION_PREFIX S390X
+#define INTROSPECTION_ENUM_PREFIX S390X
+#include "define_introspection_and_hwcaps.inl"
+
+////////////////////////////////////////////////////////////////////////////////
+// Implementation.
+////////////////////////////////////////////////////////////////////////////////
+
+#include <stdbool.h>
+
+#include "internal/bit_utils.h"
+#include "internal/filesystem.h"
+#include "internal/hwcaps.h"
+#include "internal/stack_line_reader.h"
+#include "internal/string_view.h"
+
+static bool HandleS390XLine(const LineResult result,
+                          S390XPlatformStrings* const strings) {
+  StringView line = result.line;
+  StringView key, value;
+  if (CpuFeatures_StringView_GetAttributeKeyValue(line, &key, &value)) {
+    if (CpuFeatures_StringView_IsEquals(key, str("# processors"))) {
+        strings->num_processors = CpuFeatures_StringView_ParsePositiveNumber(value);
+    }
+  }
+  return !result.eof;
+}
+
+static void FillProcCpuInfoData(S390XPlatformStrings* const strings) {
+  const int fd = CpuFeatures_OpenFile("/proc/cpuinfo");
+  if (fd >= 0) {
+    StackLineReader reader;
+    StackLineReader_Initialize(&reader, fd);
+    for (;;) {
+      if (!HandleS390XLine(StackLineReader_NextLine(&reader), strings)) {
+        break;
+      }
+    }
+    CpuFeatures_CloseFile(fd);
+  }
+}
+
+static const S390XInfo kEmptyS390XInfo;
+
+S390XInfo GetS390XInfo(void) {
+  S390XInfo info = kEmptyS390XInfo;
+  const HardwareCapabilities hwcaps = CpuFeatures_GetHardwareCapabilities();
+  for (size_t i = 0; i < S390X_LAST_; ++i) {
+    if (CpuFeatures_IsHwCapsSet(kHardwareCapabilities[i], hwcaps)) {
+      kSetters[i](&info.features, true);
+    }
+  }
+  return info;
+}
+
+static const S390XPlatformStrings kEmptyS390XPlatformStrings;
+
+S390XPlatformStrings GetS390XPlatformStrings(void) {
+  S390XPlatformStrings strings = kEmptyS390XPlatformStrings;
+  const char* platform = CpuFeatures_GetPlatformPointer();
+
+  FillProcCpuInfoData(&strings);
+
+  if (platform != NULL)
+    CpuFeatures_StringView_CopyString(str(platform), strings.type.platform,
+                                      sizeof(strings.type.platform));
+
+  return strings;
+}
+
+#endif  // CPU_FEATURES_OS_LINUX
+#endif  // CPU_FEATURES_ARCH_S390X

mcp-server-ssh/node_modules/cpu-features/deps/cpu_features/src/impl_x86_freebsd.c

@@ -0,0 +1,68 @@
+// Copyright 2017 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include "cpu_features_macros.h"
+
+#ifdef CPU_FEATURES_ARCH_X86
+#ifdef CPU_FEATURES_OS_FREEBSD
+
+#include "impl_x86__base_implementation.inl"
+
+static void OverrideOsPreserves(OsPreserves* os_preserves) {
+  (void)os_preserves;
+  // No override
+}
+
+#include "internal/filesystem.h"
+#include "internal/stack_line_reader.h"
+#include "internal/string_view.h"
+
+static void DetectFeaturesFromOs(X86Info* info, X86Features* features) {
+  (void)info;
+  // Handling FreeBSD platform through parsing /var/run/dmesg.boot.
+  const int fd = CpuFeatures_OpenFile("/var/run/dmesg.boot");
+  if (fd >= 0) {
+    StackLineReader reader;
+    StackLineReader_Initialize(&reader, fd);
+    for (bool stop = false; !stop;) {
+      const LineResult result = StackLineReader_NextLine(&reader);
+      if (result.eof) stop = true;
+      const StringView line = result.line;
+      if (!CpuFeatures_StringView_StartsWith(line, str("  Features"))) continue;
+      // Lines of interests are of the following form:
+      // "  Features=0x1783fbff<PSE36,MMX,FXSR,SSE,SSE2,HTT>"
+      // We first extract the comma separated values between angle brackets.
+      StringView csv = result.line;
+      int index = CpuFeatures_StringView_IndexOfChar(csv, '<');
+      if (index >= 0) csv = CpuFeatures_StringView_PopFront(csv, index + 1);
+      if (csv.size > 0 && CpuFeatures_StringView_Back(csv) == '>')
+        csv = CpuFeatures_StringView_PopBack(csv, 1);
+      if (CpuFeatures_StringView_HasWord(csv, "SSE", ',')) features->sse = true;
+      if (CpuFeatures_StringView_HasWord(csv, "SSE2", ','))
+        features->sse2 = true;
+      if (CpuFeatures_StringView_HasWord(csv, "SSE3", ','))
+        features->sse3 = true;
+      if (CpuFeatures_StringView_HasWord(csv, "SSSE3", ','))
+        features->ssse3 = true;
+      if (CpuFeatures_StringView_HasWord(csv, "SSE4.1", ','))
+        features->sse4_1 = true;
+      if (CpuFeatures_StringView_HasWord(csv, "SSE4.2", ','))
+        features->sse4_2 = true;
+    }
+    CpuFeatures_CloseFile(fd);
+  }
+}
+
+#endif  // CPU_FEATURES_OS_FREEBSD
+#endif  // CPU_FEATURES_ARCH_X86

mcp-server-ssh/node_modules/cpu-features/deps/cpu_features/src/impl_x86_linux_or_android.c

@@ -0,0 +1,58 @@
+// Copyright 2017 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include "cpu_features_macros.h"
+
+#ifdef CPU_FEATURES_ARCH_X86
+#if defined(CPU_FEATURES_OS_LINUX) || defined(CPU_FEATURES_OS_ANDROID)
+
+#include "impl_x86__base_implementation.inl"
+
+static void OverrideOsPreserves(OsPreserves* os_preserves) {
+  (void)os_preserves;
+  // No override
+}
+
+#include "internal/filesystem.h"
+#include "internal/stack_line_reader.h"
+#include "internal/string_view.h"
+static void DetectFeaturesFromOs(X86Info* info, X86Features* features) {
+  (void)info;
+  // Handling Linux platform through /proc/cpuinfo.
+  const int fd = CpuFeatures_OpenFile("/proc/cpuinfo");
+  if (fd >= 0) {
+    StackLineReader reader;
+    StackLineReader_Initialize(&reader, fd);
+    for (bool stop = false; !stop;) {
+      const LineResult result = StackLineReader_NextLine(&reader);
+      if (result.eof) stop = true;
+      const StringView line = result.line;
+      StringView key, value;
+      if (!CpuFeatures_StringView_GetAttributeKeyValue(line, &key, &value))
+        continue;
+      if (!CpuFeatures_StringView_IsEquals(key, str("flags"))) continue;
+      features->sse = CpuFeatures_StringView_HasWord(value, "sse", ' ');
+      features->sse2 = CpuFeatures_StringView_HasWord(value, "sse2", ' ');
+      features->sse3 = CpuFeatures_StringView_HasWord(value, "pni", ' ');
+      features->ssse3 = CpuFeatures_StringView_HasWord(value, "ssse3", ' ');
+      features->sse4_1 = CpuFeatures_StringView_HasWord(value, "sse4_1", ' ');
+      features->sse4_2 = CpuFeatures_StringView_HasWord(value, "sse4_2", ' ');
+      break;
+    }
+    CpuFeatures_CloseFile(fd);
+  }
+}
+
+#endif  // defined(CPU_FEATURES_OS_LINUX) || defined(CPU_FEATURES_OS_ANDROID)
+#endif  // CPU_FEATURES_ARCH_X86

mcp-server-ssh/node_modules/cpu-features/deps/cpu_features/src/impl_x86_macos.c

@@ -0,0 +1,57 @@
+// Copyright 2017 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include "cpu_features_macros.h"
+
+#ifdef CPU_FEATURES_ARCH_X86
+#ifdef CPU_FEATURES_OS_MACOS
+
+#include "impl_x86__base_implementation.inl"
+
+#if !defined(HAVE_SYSCTLBYNAME)
+#error "Darwin needs support for sysctlbyname"
+#endif
+#include <sys/sysctl.h>
+
+#if defined(CPU_FEATURES_MOCK_CPUID_X86)
+extern bool GetDarwinSysCtlByName(const char*);
+#else  // CPU_FEATURES_MOCK_CPUID_X86
+static bool GetDarwinSysCtlByName(const char* name) {
+  int enabled;
+  size_t enabled_len = sizeof(enabled);
+  const int failure = sysctlbyname(name, &enabled, &enabled_len, NULL, 0);
+  return failure ? false : enabled;
+}
+#endif
+
+static void OverrideOsPreserves(OsPreserves* os_preserves) {
+  // On Darwin AVX512 support is On-demand.
+  // We have to query the OS instead of querying the Zmm save/restore state.
+  // https://github.com/apple/darwin-xnu/blob/8f02f2a044b9bb1ad951987ef5bab20ec9486310/osfmk/i386/fpu.c#L173-L199
+  os_preserves->avx512_registers = GetDarwinSysCtlByName("hw.optional.avx512f");
+}
+
+static void DetectFeaturesFromOs(X86Info* info, X86Features* features) {
+  (void)info;
+  // Handling Darwin platform through sysctlbyname.
+  features->sse = GetDarwinSysCtlByName("hw.optional.sse");
+  features->sse2 = GetDarwinSysCtlByName("hw.optional.sse2");
+  features->sse3 = GetDarwinSysCtlByName("hw.optional.sse3");
+  features->ssse3 = GetDarwinSysCtlByName("hw.optional.supplementalsse3");
+  features->sse4_1 = GetDarwinSysCtlByName("hw.optional.sse4_1");
+  features->sse4_2 = GetDarwinSysCtlByName("hw.optional.sse4_2");
+}
+
+#endif  // CPU_FEATURES_OS_MACOS
+#endif  // CPU_FEATURES_ARCH_X86

mcp-server-ssh/node_modules/cpu-features/deps/cpu_features/src/impl_x86_windows.c

@@ -0,0 +1,58 @@
+// Copyright 2017 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include "cpu_features_macros.h"
+
+#ifdef CPU_FEATURES_ARCH_X86
+#ifdef CPU_FEATURES_OS_WINDOWS
+
+#include "impl_x86__base_implementation.inl"
+
+static void OverrideOsPreserves(OsPreserves* os_preserves) {
+  (void)os_preserves;
+  // No override
+}
+
+#include "internal/windows_utils.h"
+
+#if defined(CPU_FEATURES_MOCK_CPUID_X86)
+extern bool GetWindowsIsProcessorFeaturePresent(DWORD);
+#else  // CPU_FEATURES_MOCK_CPUID_X86
+static bool GetWindowsIsProcessorFeaturePresent(DWORD ProcessorFeature) {
+  return IsProcessorFeaturePresent(ProcessorFeature);
+}
+#endif
+
+static void DetectFeaturesFromOs(X86Info* info, X86Features* features) {
+  // Handling Windows platform through IsProcessorFeaturePresent.
+  // https://docs.microsoft.com/en-us/windows/win32/api/processthreadsapi/nf-processthreadsapi-isprocessorfeaturepresent
+  features->sse =
+      GetWindowsIsProcessorFeaturePresent(PF_XMMI_INSTRUCTIONS_AVAILABLE);
+  features->sse2 =
+      GetWindowsIsProcessorFeaturePresent(PF_XMMI64_INSTRUCTIONS_AVAILABLE);
+  features->sse3 =
+      GetWindowsIsProcessorFeaturePresent(PF_SSE3_INSTRUCTIONS_AVAILABLE);
+  features->ssse3 =
+      GetWindowsIsProcessorFeaturePresent(PF_SSSE3_INSTRUCTIONS_AVAILABLE);
+  features->sse4_1 =
+      GetWindowsIsProcessorFeaturePresent(PF_SSE4_1_INSTRUCTIONS_AVAILABLE);
+  features->sse4_2 =
+      GetWindowsIsProcessorFeaturePresent(PF_SSE4_2_INSTRUCTIONS_AVAILABLE);
+
+// do not bother checking PF_AVX*
+// cause AVX enabled processor will have XCR0 be exposed and this function will be skipped at all
+}
+
+#endif  // CPU_FEATURES_OS_WINDOWS
+#endif  // CPU_FEATURES_ARCH_X86

mcp-server-ssh/node_modules/cpu-features/deps/cpu_features/src/stack_line_reader.c

@@ -0,0 +1,132 @@
+// Copyright 2017 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include "internal/stack_line_reader.h"
+
+#include <assert.h>
+#include <errno.h>
+#include <stdio.h>
+
+#include "internal/filesystem.h"
+
+void StackLineReader_Initialize(StackLineReader* reader, int fd) {
+  reader->view.ptr = reader->buffer;
+  reader->view.size = 0;
+  reader->skip_mode = false;
+  reader->fd = fd;
+}
+
+// Replaces the content of buffer with bytes from the file.
+static int LoadFullBuffer(StackLineReader* reader) {
+  const int read = CpuFeatures_ReadFile(reader->fd, reader->buffer,
+                                        STACK_LINE_READER_BUFFER_SIZE);
+  assert(read >= 0);
+  reader->view.ptr = reader->buffer;
+  reader->view.size = read;
+  return read;
+}
+
+// Appends with bytes from the file to buffer, filling the remaining space.
+static int LoadMore(StackLineReader* reader) {
+  char* const ptr = reader->buffer + reader->view.size;
+  const size_t size_to_read = STACK_LINE_READER_BUFFER_SIZE - reader->view.size;
+  const int read = CpuFeatures_ReadFile(reader->fd, ptr, size_to_read);
+  assert(read >= 0);
+  assert(read <= (int)size_to_read);
+  reader->view.size += read;
+  return read;
+}
+
+static int IndexOfEol(StackLineReader* reader) {
+  return CpuFeatures_StringView_IndexOfChar(reader->view, '\n');
+}
+
+// Relocate buffer's pending bytes at the beginning of the array and fills the
+// remaining space with bytes from the file.
+static int BringToFrontAndLoadMore(StackLineReader* reader) {
+  if (reader->view.size && reader->view.ptr != reader->buffer) {
+    memmove(reader->buffer, reader->view.ptr, reader->view.size);
+  }
+  reader->view.ptr = reader->buffer;
+  return LoadMore(reader);
+}
+
+// Loads chunks of buffer size from disks until it contains a newline character
+// or end of file.
+static void SkipToNextLine(StackLineReader* reader) {
+  for (;;) {
+    const int read = LoadFullBuffer(reader);
+    if (read == 0) {
+      break;
+    } else {
+      const int eol_index = IndexOfEol(reader);
+      if (eol_index >= 0) {
+        reader->view =
+            CpuFeatures_StringView_PopFront(reader->view, eol_index + 1);
+        break;
+      }
+    }
+  }
+}
+
+static LineResult CreateLineResult(bool eof, bool full_line, StringView view) {
+  LineResult result;
+  result.eof = eof;
+  result.full_line = full_line;
+  result.line = view;
+  return result;
+}
+
+// Helper methods to provide clearer semantic in StackLineReader_NextLine.
+static LineResult CreateEOFLineResult(StringView view) {
+  return CreateLineResult(true, true, view);
+}
+
+static LineResult CreateTruncatedLineResult(StringView view) {
+  return CreateLineResult(false, false, view);
+}
+
+static LineResult CreateValidLineResult(StringView view) {
+  return CreateLineResult(false, true, view);
+}
+
+LineResult StackLineReader_NextLine(StackLineReader* reader) {
+  if (reader->skip_mode) {
+    SkipToNextLine(reader);
+    reader->skip_mode = false;
+  }
+  {
+    const bool can_load_more =
+        reader->view.size < STACK_LINE_READER_BUFFER_SIZE;
+    int eol_index = IndexOfEol(reader);
+    if (eol_index < 0 && can_load_more) {
+      const int read = BringToFrontAndLoadMore(reader);
+      if (read == 0) {
+        return CreateEOFLineResult(reader->view);
+      }
+      eol_index = IndexOfEol(reader);
+    }
+    if (eol_index < 0) {
+      reader->skip_mode = true;
+      return CreateTruncatedLineResult(reader->view);
+    }
+    {
+      StringView line =
+          CpuFeatures_StringView_KeepFront(reader->view, eol_index);
+      reader->view =
+          CpuFeatures_StringView_PopFront(reader->view, eol_index + 1);
+      return CreateValidLineResult(line);
+    }
+  }
+}

mcp-server-ssh/node_modules/cpu-features/deps/cpu_features/src/string_view.c

@@ -0,0 +1,192 @@
+// Copyright 2017 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include "internal/string_view.h"
+
+#include <assert.h>
+#include <ctype.h>
+
+#include "copy.inl"
+#include "equals.inl"
+
+static const char* CpuFeatures_memchr(const char* const ptr, const size_t size,
+                                      const char c) {
+  for (size_t i = 0; ptr && ptr[i] != '\0' && i < size; ++i)
+    if (ptr[i] == c) return ptr + i;
+  return NULL;
+}
+
+int CpuFeatures_StringView_IndexOfChar(const StringView view, char c) {
+  if (view.ptr && view.size) {
+    const char* const found = CpuFeatures_memchr(view.ptr, view.size, c);
+    if (found) {
+      return (int)(found - view.ptr);
+    }
+  }
+  return -1;
+}
+
+int CpuFeatures_StringView_IndexOf(const StringView view,
+                                   const StringView sub_view) {
+  if (sub_view.size) {
+    StringView remainder = view;
+    while (remainder.size >= sub_view.size) {
+      const int found_index =
+          CpuFeatures_StringView_IndexOfChar(remainder, sub_view.ptr[0]);
+      if (found_index < 0) break;
+      remainder = CpuFeatures_StringView_PopFront(remainder, found_index);
+      if (CpuFeatures_StringView_StartsWith(remainder, sub_view)) {
+        return (int)(remainder.ptr - view.ptr);
+      }
+      remainder = CpuFeatures_StringView_PopFront(remainder, 1);
+    }
+  }
+  return -1;
+}
+
+bool CpuFeatures_StringView_IsEquals(const StringView a, const StringView b) {
+  if (a.size == b.size) {
+    return a.ptr == b.ptr || equals(a.ptr, b.ptr, b.size);
+  }
+  return false;
+}
+
+bool CpuFeatures_StringView_StartsWith(const StringView a, const StringView b) {
+  return a.ptr && b.ptr && b.size && a.size >= b.size
+             ? equals(a.ptr, b.ptr, b.size)
+             : false;
+}
+
+StringView CpuFeatures_StringView_PopFront(const StringView str_view,
+                                           size_t count) {
+  if (count > str_view.size) {
+    return kEmptyStringView;
+  }
+  return view(str_view.ptr + count, str_view.size - count);
+}
+
+StringView CpuFeatures_StringView_PopBack(const StringView str_view,
+                                          size_t count) {
+  if (count > str_view.size) {
+    return kEmptyStringView;
+  }
+  return view(str_view.ptr, str_view.size - count);
+}
+
+StringView CpuFeatures_StringView_KeepFront(const StringView str_view,
+                                            size_t count) {
+  return count <= str_view.size ? view(str_view.ptr, count) : str_view;
+}
+
+char CpuFeatures_StringView_Front(const StringView view) {
+  assert(view.size);
+  assert(view.ptr);
+  return view.ptr[0];
+}
+
+char CpuFeatures_StringView_Back(const StringView view) {
+  assert(view.size);
+  return view.ptr[view.size - 1];
+}
+
+StringView CpuFeatures_StringView_TrimWhitespace(StringView view) {
+  while (view.size && isspace(CpuFeatures_StringView_Front(view)))
+    view = CpuFeatures_StringView_PopFront(view, 1);
+  while (view.size && isspace(CpuFeatures_StringView_Back(view)))
+    view = CpuFeatures_StringView_PopBack(view, 1);
+  return view;
+}
+
+static int HexValue(const char c) {
+  if (c >= '0' && c <= '9') return c - '0';
+  if (c >= 'a' && c <= 'f') return c - 'a' + 10;
+  if (c >= 'A' && c <= 'F') return c - 'A' + 10;
+  return -1;
+}
+
+// Returns -1 if view contains non digits.
+static int ParsePositiveNumberWithBase(const StringView view, int base) {
+  int result = 0;
+  StringView remainder = view;
+  for (; remainder.size;
+       remainder = CpuFeatures_StringView_PopFront(remainder, 1)) {
+    const int value = HexValue(CpuFeatures_StringView_Front(remainder));
+    if (value < 0 || value >= base) return -1;
+    result = (result * base) + value;
+  }
+  return result;
+}
+
+int CpuFeatures_StringView_ParsePositiveNumber(const StringView view) {
+  if (view.size) {
+    const StringView hex_prefix = str("0x");
+    if (CpuFeatures_StringView_StartsWith(view, hex_prefix)) {
+      const StringView span_no_prefix =
+          CpuFeatures_StringView_PopFront(view, hex_prefix.size);
+      return ParsePositiveNumberWithBase(span_no_prefix, 16);
+    }
+    return ParsePositiveNumberWithBase(view, 10);
+  }
+  return -1;
+}
+
+void CpuFeatures_StringView_CopyString(const StringView src, char* dst,
+                                       size_t dst_size) {
+  if (dst_size > 0) {
+    const size_t max_copy_size = dst_size - 1;
+    const size_t copy_size =
+        src.size > max_copy_size ? max_copy_size : src.size;
+    copy(dst, src.ptr, copy_size);
+    dst[copy_size] = '\0';
+  }
+}
+
+bool CpuFeatures_StringView_HasWord(const StringView line,
+                                    const char* const word_str,
+                                    const char separator) {
+  const StringView word = str(word_str);
+  StringView remainder = line;
+  for (;;) {
+    const int index_of_word = CpuFeatures_StringView_IndexOf(remainder, word);
+    if (index_of_word < 0) {
+      return false;
+    } else {
+      const StringView before =
+          CpuFeatures_StringView_KeepFront(line, index_of_word);
+      const StringView after =
+          CpuFeatures_StringView_PopFront(line, index_of_word + word.size);
+      const bool valid_before =
+          before.size == 0 || CpuFeatures_StringView_Back(before) == separator;
+      const bool valid_after =
+          after.size == 0 || CpuFeatures_StringView_Front(after) == separator;
+      if (valid_before && valid_after) return true;
+      remainder =
+          CpuFeatures_StringView_PopFront(remainder, index_of_word + word.size);
+    }
+  }
+  return false;
+}
+
+bool CpuFeatures_StringView_GetAttributeKeyValue(const StringView line,
+                                                 StringView* key,
+                                                 StringView* value) {
+  const StringView sep = str(": ");
+  const int index_of_separator = CpuFeatures_StringView_IndexOf(line, sep);
+  if (index_of_separator < 0) return false;
+  *value = CpuFeatures_StringView_TrimWhitespace(
+      CpuFeatures_StringView_PopFront(line, index_of_separator + sep.size));
+  *key = CpuFeatures_StringView_TrimWhitespace(
+      CpuFeatures_StringView_KeepFront(line, index_of_separator));
+  return true;
+}

mcp-server-ssh/node_modules/cpu-features/deps/cpu_features/src/utils/list_cpu_features.c

@@ -0,0 +1,461 @@
+// Copyright 2017 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// This program dumps current host data to the standard output.
+// Output can be text or json if the `--json` flag is passed.
+
+#include <assert.h>
+#include <stdarg.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "cpu_features_macros.h"
+
+#if defined(CPU_FEATURES_ARCH_X86)
+#include "cpuinfo_x86.h"
+#elif defined(CPU_FEATURES_ARCH_ARM)
+#include "cpuinfo_arm.h"
+#elif defined(CPU_FEATURES_ARCH_AARCH64)
+#include "cpuinfo_aarch64.h"
+#elif defined(CPU_FEATURES_ARCH_MIPS)
+#include "cpuinfo_mips.h"
+#elif defined(CPU_FEATURES_ARCH_PPC)
+#include "cpuinfo_ppc.h"
+#elif defined(CPU_FEATURES_ARCH_S390X)
+#include "cpuinfo_s390x.h"
+#elif defined(CPU_FEATURES_ARCH_RISCV)
+#include "cpuinfo_riscv.h"
+#endif
+
+// Design principles
+// -----------------
+// We build a tree structure containing all the data to be displayed.
+// Then depending on the output type (text or json) we walk the tree and display
+// the data accordingly.
+
+// We use a bump allocator to allocate strings and nodes of the tree,
+// Memory is not intended to be reclaimed.
+typedef struct {
+  char* ptr;
+  size_t size;
+} BumpAllocator;
+
+char gGlobalBuffer[64 * 1024];
+BumpAllocator gBumpAllocator = {.ptr = gGlobalBuffer,
+                                .size = sizeof(gGlobalBuffer)};
+
+static void internal_error(void) {
+  fputs("internal error\n", stderr);
+  exit(EXIT_FAILURE);
+}
+
+#define ALIGN 8
+
+static void assertAligned(void) {
+  if ((uintptr_t)(gBumpAllocator.ptr) % ALIGN) internal_error();
+}
+
+static void BA_Align(void) {
+  while (gBumpAllocator.size && (uintptr_t)(gBumpAllocator.ptr) % ALIGN) {
+    --gBumpAllocator.size;
+    ++gBumpAllocator.ptr;
+  }
+  assertAligned();
+}
+
+// Update the available memory left in the BumpAllocator.
+static void* BA_Bump(size_t size) {
+  assertAligned();
+  // Align size to next 8B boundary.
+  size = (size + ALIGN - 1) / ALIGN * ALIGN;
+  if (gBumpAllocator.size < size) internal_error();
+  void* ptr = gBumpAllocator.ptr;
+  gBumpAllocator.size -= size;
+  gBumpAllocator.ptr += size;
+  return ptr;
+}
+
+// The type of the nodes in the tree.
+typedef enum {
+  NT_INVALID,
+  NT_INT,
+  NT_MAP,
+  NT_MAP_ENTRY,
+  NT_ARRAY,
+  NT_ARRAY_ELEMENT,
+  NT_STRING,
+} NodeType;
+
+// The node in the tree.
+typedef struct Node {
+  NodeType type;
+  unsigned integer;
+  const char* string;
+  struct Node* value;
+  struct Node* next;
+} Node;
+
+// Creates an initialized Node.
+static Node* BA_CreateNode(NodeType type) {
+  Node* tv = (Node*)BA_Bump(sizeof(Node));
+  assert(tv);
+  *tv = (Node){.type = type};
+  return tv;
+}
+
+// Adds an integer node.
+static Node* CreateInt(int value) {
+  Node* tv = BA_CreateNode(NT_INT);
+  tv->integer = value;
+  return tv;
+}
+
+// Adds a string node.
+// `value` must outlive the tree.
+static Node* CreateConstantString(const char* value) {
+  Node* tv = BA_CreateNode(NT_STRING);
+  tv->string = value;
+  return tv;
+}
+
+// Adds a map node.
+static Node* CreateMap(void) { return BA_CreateNode(NT_MAP); }
+
+// Adds an array node.
+static Node* CreateArray(void) { return BA_CreateNode(NT_ARRAY); }
+
+// Adds a formatted string node.
+static Node* CreatePrintfString(const char* format, ...) {
+  va_list arglist;
+  va_start(arglist, format);
+  char* const ptr = gBumpAllocator.ptr;
+  const int written = vsnprintf(ptr, gBumpAllocator.size, format, arglist);
+  va_end(arglist);
+  if (written < 0 || written >= (int)gBumpAllocator.size) internal_error();
+  return CreateConstantString((char*)BA_Bump(written));
+}
+
+// Adds a string node.
+static Node* CreateString(const char* value) {
+  return CreatePrintfString("%s", value);
+}
+
+// Adds a map entry node.
+static void AddMapEntry(Node* map, const char* key, Node* value) {
+  assert(map && map->type == NT_MAP);
+  Node* current = map;
+  while (current->next) current = current->next;
+  current->next = (Node*)BA_Bump(sizeof(Node));
+  *current->next = (Node){.type = NT_MAP_ENTRY, .string = key, .value = value};
+}
+
+// Adds an array element node.
+static void AddArrayElement(Node* array, Node* value) {
+  assert(array && array->type == NT_ARRAY);
+  Node* current = array;
+  while (current->next) current = current->next;
+  current->next = (Node*)BA_Bump(sizeof(Node));
+  *current->next = (Node){.type = NT_ARRAY_ELEMENT, .value = value};
+}
+
+static int cmp(const void* p1, const void* p2) {
+  return strcmp(*(const char* const*)p1, *(const char* const*)p2);
+}
+
+#define DEFINE_ADD_FLAGS(HasFeature, FeatureName, FeatureType, LastEnum) \
+  static void AddFlags(Node* map, const FeatureType* features) {         \
+    size_t i;                                                            \
+    const char* ptrs[LastEnum] = {0};                                    \
+    size_t count = 0;                                                    \
+    for (i = 0; i < LastEnum; ++i) {                                     \
+      if (HasFeature(features, i)) {                                     \
+        ptrs[count] = FeatureName(i);                                    \
+        ++count;                                                         \
+      }                                                                  \
+    }                                                                    \
+    qsort((void*)ptrs, count, sizeof(char*), cmp);                       \
+    Node* const array = CreateArray();                                   \
+    for (i = 0; i < count; ++i)                                          \
+      AddArrayElement(array, CreateConstantString(ptrs[i]));             \
+    AddMapEntry(map, "flags", array);                                    \
+  }
+
+#if defined(CPU_FEATURES_ARCH_X86)
+DEFINE_ADD_FLAGS(GetX86FeaturesEnumValue, GetX86FeaturesEnumName, X86Features,
+                 X86_LAST_)
+#elif defined(CPU_FEATURES_ARCH_ARM)
+DEFINE_ADD_FLAGS(GetArmFeaturesEnumValue, GetArmFeaturesEnumName, ArmFeatures,
+                 ARM_LAST_)
+#elif defined(CPU_FEATURES_ARCH_AARCH64)
+DEFINE_ADD_FLAGS(GetAarch64FeaturesEnumValue, GetAarch64FeaturesEnumName,
+                 Aarch64Features, AARCH64_LAST_)
+#elif defined(CPU_FEATURES_ARCH_MIPS)
+DEFINE_ADD_FLAGS(GetMipsFeaturesEnumValue, GetMipsFeaturesEnumName,
+                 MipsFeatures, MIPS_LAST_)
+#elif defined(CPU_FEATURES_ARCH_PPC)
+DEFINE_ADD_FLAGS(GetPPCFeaturesEnumValue, GetPPCFeaturesEnumName, PPCFeatures,
+                 PPC_LAST_)
+#elif defined(CPU_FEATURES_ARCH_S390X)
+DEFINE_ADD_FLAGS(GetS390XFeaturesEnumValue, GetS390XFeaturesEnumName, S390XFeatures,
+                 S390X_LAST_)
+#elif defined(CPU_FEATURES_ARCH_RISCV)
+DEFINE_ADD_FLAGS(GetRiscvFeaturesEnumValue, GetRiscvFeaturesEnumName, RiscvFeatures,
+                 RISCV_LAST_)
+#endif
+
+// Prints a json string with characters escaping.
+static void printJsonString(const char* str) {
+  putchar('"');
+  for (; str && *str; ++str) {
+    switch (*str) {
+      case '\"':
+      case '\\':
+      case '/':
+      case '\b':
+      case '\f':
+      case '\n':
+      case '\r':
+      case '\t':
+        putchar('\\');
+    }
+    putchar(*str);
+  }
+  putchar('"');
+}
+
+// Walks a Node and print it as json.
+static void printJson(const Node* current) {
+  assert(current);
+  switch (current->type) {
+    case NT_INVALID:
+      break;
+    case NT_INT:
+      printf("%d", current->integer);
+      break;
+    case NT_STRING:
+      printJsonString(current->string);
+      break;
+    case NT_ARRAY:
+      putchar('[');
+      if (current->next) printJson(current->next);
+      putchar(']');
+      break;
+    case NT_MAP:
+      putchar('{');
+      if (current->next) printJson(current->next);
+      putchar('}');
+      break;
+    case NT_MAP_ENTRY:
+      printf("\"%s\":", current->string);
+      printJson(current->value);
+      if (current->next) {
+        putchar(',');
+        printJson(current->next);
+      }
+      break;
+    case NT_ARRAY_ELEMENT:
+      printJson(current->value);
+      if (current->next) {
+        putchar(',');
+        printJson(current->next);
+      }
+      break;
+  }
+}
+
+// Walks a Node and print it as text.
+static void printTextField(const Node* current) {
+  switch (current->type) {
+    case NT_INVALID:
+      break;
+    case NT_INT:
+      printf("%3d (0x%02X)", current->integer, current->integer);
+      break;
+    case NT_STRING:
+      fputs(current->string, stdout);
+      break;
+    case NT_ARRAY:
+      if (current->next) printTextField(current->next);
+      break;
+    case NT_MAP:
+      if (current->next) {
+        printf("{");
+        printJson(current->next);
+        printf("}");
+      }
+      break;
+    case NT_MAP_ENTRY:
+      printf("%-15s : ", current->string);
+      printTextField(current->value);
+      if (current->next) {
+        putchar('\n');
+        printTextField(current->next);
+      }
+      break;
+    case NT_ARRAY_ELEMENT:
+      printTextField(current->value);
+      if (current->next) {
+        putchar(',');
+        printTextField(current->next);
+      }
+      break;
+  }
+}
+
+static void printTextRoot(const Node* current) {
+  if (current->type == NT_MAP && current->next) printTextField(current->next);
+}
+
+static void showUsage(const char* name) {
+  printf(
+      "\n"
+      "Usage: %s [options]\n"
+      "      Options:\n"
+      "      -h | --help     Show help message.\n"
+      "      -j | --json     Format output as json instead of plain text.\n"
+      "\n",
+      name);
+}
+
+static Node* GetCacheTypeString(CacheType cache_type) {
+  switch (cache_type) {
+    case CPU_FEATURE_CACHE_NULL:
+      return CreateConstantString("null");
+    case CPU_FEATURE_CACHE_DATA:
+      return CreateConstantString("data");
+    case CPU_FEATURE_CACHE_INSTRUCTION:
+      return CreateConstantString("instruction");
+    case CPU_FEATURE_CACHE_UNIFIED:
+      return CreateConstantString("unified");
+    case CPU_FEATURE_CACHE_TLB:
+      return CreateConstantString("tlb");
+    case CPU_FEATURE_CACHE_DTLB:
+      return CreateConstantString("dtlb");
+    case CPU_FEATURE_CACHE_STLB:
+      return CreateConstantString("stlb");
+    case CPU_FEATURE_CACHE_PREFETCH:
+      return CreateConstantString("prefetch");
+  }
+  CPU_FEATURES_UNREACHABLE();
+}
+
+static void AddCacheInfo(Node* root, const CacheInfo* cache_info) {
+  Node* array = CreateArray();
+  for (int i = 0; i < cache_info->size; ++i) {
+    CacheLevelInfo info = cache_info->levels[i];
+    Node* map = CreateMap();
+    AddMapEntry(map, "level", CreateInt(info.level));
+    AddMapEntry(map, "cache_type", GetCacheTypeString(info.cache_type));
+    AddMapEntry(map, "cache_size", CreateInt(info.cache_size));
+    AddMapEntry(map, "ways", CreateInt(info.ways));
+    AddMapEntry(map, "line_size", CreateInt(info.line_size));
+    AddMapEntry(map, "tlb_entries", CreateInt(info.tlb_entries));
+    AddMapEntry(map, "partitioning", CreateInt(info.partitioning));
+    AddArrayElement(array, map);
+  }
+  AddMapEntry(root, "cache_info", array);
+}
+
+static Node* CreateTree(void) {
+  Node* root = CreateMap();
+#if defined(CPU_FEATURES_ARCH_X86)
+  const X86Info info = GetX86Info();
+  const CacheInfo cache_info = GetX86CacheInfo();
+  AddMapEntry(root, "arch", CreateString("x86"));
+  AddMapEntry(root, "brand", CreateString(info.brand_string));
+  AddMapEntry(root, "family", CreateInt(info.family));
+  AddMapEntry(root, "model", CreateInt(info.model));
+  AddMapEntry(root, "stepping", CreateInt(info.stepping));
+  AddMapEntry(root, "uarch",
+              CreateString(
+                  GetX86MicroarchitectureName(GetX86Microarchitecture(&info))));
+  AddFlags(root, &info.features);
+  AddCacheInfo(root, &cache_info);
+#elif defined(CPU_FEATURES_ARCH_ARM)
+  const ArmInfo info = GetArmInfo();
+  AddMapEntry(root, "arch", CreateString("ARM"));
+  AddMapEntry(root, "implementer", CreateInt(info.implementer));
+  AddMapEntry(root, "architecture", CreateInt(info.architecture));
+  AddMapEntry(root, "variant", CreateInt(info.variant));
+  AddMapEntry(root, "part", CreateInt(info.part));
+  AddMapEntry(root, "revision", CreateInt(info.revision));
+  AddFlags(root, &info.features);
+#elif defined(CPU_FEATURES_ARCH_AARCH64)
+  const Aarch64Info info = GetAarch64Info();
+  AddMapEntry(root, "arch", CreateString("aarch64"));
+  AddMapEntry(root, "implementer", CreateInt(info.implementer));
+  AddMapEntry(root, "variant", CreateInt(info.variant));
+  AddMapEntry(root, "part", CreateInt(info.part));
+  AddMapEntry(root, "revision", CreateInt(info.revision));
+  AddFlags(root, &info.features);
+#elif defined(CPU_FEATURES_ARCH_MIPS)
+  const MipsInfo info = GetMipsInfo();
+  AddMapEntry(root, "arch", CreateString("mips"));
+  AddFlags(root, &info.features);
+#elif defined(CPU_FEATURES_ARCH_PPC)
+  const PPCInfo info = GetPPCInfo();
+  const PPCPlatformStrings strings = GetPPCPlatformStrings();
+  AddMapEntry(root, "arch", CreateString("ppc"));
+  AddMapEntry(root, "platform", CreateString(strings.platform));
+  AddMapEntry(root, "model", CreateString(strings.model));
+  AddMapEntry(root, "machine", CreateString(strings.machine));
+  AddMapEntry(root, "cpu", CreateString(strings.cpu));
+  AddMapEntry(root, "instruction", CreateString(strings.type.platform));
+  AddMapEntry(root, "microarchitecture",
+              CreateString(strings.type.base_platform));
+  AddFlags(root, &info.features);
+#elif defined(CPU_FEATURES_ARCH_S390X)
+  const S390XInfo info = GetS390XInfo();
+  const S390XPlatformStrings strings = GetS390XPlatformStrings();
+  AddMapEntry(root, "arch", CreateString("s390x"));
+  AddMapEntry(root, "platform", CreateString("zSeries"));
+  AddMapEntry(root, "model", CreateString(strings.type.platform));
+  AddMapEntry(root, "# processors", CreateInt(strings.num_processors));
+  AddFlags(root, &info.features);
+#elif defined(CPU_FEATURES_ARCH_RISCV)
+  const RiscvInfo info = GetRiscvInfo();
+  AddMapEntry(root, "arch", CreateString("risc-v"));
+  AddMapEntry(root, "vendor", CreateString(info.vendor));
+  AddMapEntry(root, "microarchitecture", CreateString(info.uarch));
+  AddFlags(root, &info.features); 
+#endif
+  return root;
+}
+
+int main(int argc, char** argv) {
+  BA_Align();
+  const Node* const root = CreateTree();
+  bool outputJson = false;
+  int i = 1;
+  for (; i < argc; ++i) {
+    const char* arg = argv[i];
+    if (strcmp(arg, "-j") == 0 || strcmp(arg, "--json") == 0) {
+      outputJson = true;
+    } else {
+      showUsage(argv[0]);
+      if (strcmp(arg, "-h") == 0 || strcmp(arg, "--help") == 0)
+        return EXIT_SUCCESS;
+      return EXIT_FAILURE;
+    }
+  }
+  if (outputJson)
+    printJson(root);
+  else
+    printTextRoot(root);
+  putchar('\n');
+  return EXIT_SUCCESS;
+}