diff --git a/support/scripts/gen-bootlin-toolchains b/support/scripts/gen-bootlin-toolchains
index f160a44152..a42ddb4097 100755
--- a/support/scripts/gen-bootlin-toolchains
+++ b/support/scripts/gen-bootlin-toolchains
@@ -178,6 +178,54 @@ arches = {
         'conditions': ['BR2_sparc', 'BR2_sparc_v8'],
         'prefix': 'sparc',
     },
+    'x86-64': {
+        'conditions': ['BR2_x86_64',
+                       'BR2_X86_CPU_HAS_MMX',
+                       'BR2_X86_CPU_HAS_SSE',
+                       'BR2_X86_CPU_HAS_SSE2'],
+        'test_options': ['BR2_x86_64', 'BR2_x86_x86_64'],
+        'prefix': 'x86_64',
+    },
+    'x86-64-v2': {
+        'conditions': ['BR2_x86_64',
+                       'BR2_X86_CPU_HAS_MMX',
+                       'BR2_X86_CPU_HAS_SSE',
+                       'BR2_X86_CPU_HAS_SSE2',
+                       'BR2_X86_CPU_HAS_SSE3',
+                       'BR2_X86_CPU_HAS_SSSE3',
+                       'BR2_X86_CPU_HAS_SSE4',
+                       'BR2_X86_CPU_HAS_SSE42'],
+        'test_options': ['BR2_x86_64', 'BR2_x86_x86_64_v2'],
+        'prefix': 'x86_64',
+    },
+    'x86-64-v3': {
+        'conditions': ['BR2_x86_64',
+                       'BR2_X86_CPU_HAS_MMX',
+                       'BR2_X86_CPU_HAS_SSE',
+                       'BR2_X86_CPU_HAS_SSE2',
+                       'BR2_X86_CPU_HAS_SSE3',
+                       'BR2_X86_CPU_HAS_SSSE3',
+                       'BR2_X86_CPU_HAS_SSE4',
+                       'BR2_X86_CPU_HAS_SSE42',
+                       'BR2_X86_CPU_HAS_AVX',
+                       'BR2_X86_CPU_HAS_AVX2'],
+        'test_options': ['BR2_x86_64', 'BR2_x86_x86_64_v3'],
+        'prefix': 'x86_64',
+    },
+    'x86-64-v4': {
+        'conditions': ['BR2_x86_64',
+                       'BR2_X86_CPU_HAS_MMX',
+                       'BR2_X86_CPU_HAS_SSE',
+                       'BR2_X86_CPU_HAS_SSE2',
+                       'BR2_X86_CPU_HAS_SSE3',
+                       'BR2_X86_CPU_HAS_SSSE3',
+                       'BR2_X86_CPU_HAS_SSE4',
+                       'BR2_X86_CPU_HAS_SSE42',
+                       'BR2_X86_CPU_HAS_AVX',
+                       'BR2_X86_CPU_HAS_AVX2'],
+        'test_options': ['BR2_x86_64', 'BR2_x86_x86_64_v4'],
+        'prefix': 'x86_64',
+    },
     'x86-64-core-i7': {
         'conditions': ['BR2_x86_64',
                        'BR2_X86_CPU_HAS_MMX',