diff --git a/elf/elf.h b/elf/elf.h
index fff893d..be4d111 100644
--- a/elf/elf.h
+++ b/elf/elf.h
@@ -1247,6 +1247,71 @@ typedef struct
 /* Version note generated by GNU gold containing a version string.  */
 #define NT_GNU_GOLD_VERSION	4
 
+/* Property notes generated by GCC for use with the dynamic linker.  */
+#define NT_GNU_PROPERTY_TYPE_0  5
+
+/* Default name of section containing NT_GNU_PROPERTY_TYPE_0 notes.  */
+#define NOTE_GNU_PROPERTY_SECTION_NAME	".note.gnu.property"
+
+/* Values used in NT_GNU_PROPERTY_TYPE_0 notes.  */
+#define GNU_PROPERTY_STACK_SIZE			1
+#define GNU_PROPERTY_NO_COPY_ON_PROTECTED	2
+/* Processor-specific semantics, low.  */
+#define GNU_PROPERTY_LOPROC                     0xc0000000
+/* Processor-specific semantics, high.  */
+#define GNU_PROPERTY_HIPROC                     0xdfffffff
+/* Application-specific semantics, low.  */
+#define GNU_PROPERTY_LOUSER                     0xe0000000
+/* Application-specific semantics, high.  */
+#define GNU_PROPERTY_HIUSER                     0xffffffff
+
+/* X86 specific note values for NT_GNU_PROPERTY_TYPE_0 notes.  */
+#define GNU_PROPERTY_X86_ISA_1_USED		0xc0000000
+#define GNU_PROPERTY_X86_ISA_1_NEEDED		0xc0000001
+
+/* Values for GNU_PROPERTY_X86_ISA notes.  */
+#define GNU_PROPERTY_X86_ISA_1_486           (1U << 0)
+#define GNU_PROPERTY_X86_ISA_1_586           (1U << 1)
+#define GNU_PROPERTY_X86_ISA_1_686           (1U << 2)
+#define GNU_PROPERTY_X86_ISA_1_SSE           (1U << 3)
+#define GNU_PROPERTY_X86_ISA_1_SSE2          (1U << 4)
+#define GNU_PROPERTY_X86_ISA_1_SSE3          (1U << 5)
+#define GNU_PROPERTY_X86_ISA_1_SSSE3         (1U << 6)
+#define GNU_PROPERTY_X86_ISA_1_SSE4_1        (1U << 7)
+#define GNU_PROPERTY_X86_ISA_1_SSE4_2        (1U << 8)
+#define GNU_PROPERTY_X86_ISA_1_AVX           (1U << 9)
+#define GNU_PROPERTY_X86_ISA_1_AVX2          (1U << 10)
+#define GNU_PROPERTY_X86_ISA_1_AVX512F       (1U << 11)
+#define GNU_PROPERTY_X86_ISA_1_AVX512CD      (1U << 12)
+#define GNU_PROPERTY_X86_ISA_1_AVX512ER      (1U << 13)
+#define GNU_PROPERTY_X86_ISA_1_AVX512PF      (1U << 14)
+#define GNU_PROPERTY_X86_ISA_1_AVX512VL      (1U << 15)
+#define GNU_PROPERTY_X86_ISA_1_AVX512DQ      (1U << 16)
+#define GNU_PROPERTY_X86_ISA_1_AVX512BW      (1U << 17)
+
+
+/* Attribute notes generated by GCC for use with static analysis tools.  */
+#define NT_GNU_BUILD_ATTRIBUTE_OPEN	0x100
+#define NT_GNU_BUILD_ATTRIBUTE_FUNC	0x101
+
+/* Default name of section containing NT_GNU_BUILD_ATTRIBUTE notes.  */
+#define GNU_BUILD_ATTRS_SECTION_NAME	".gnu.build.attributes"
+
+/* Special characters at the start of GNU build attribute names.  */
+#define GNU_BUILD_ATTRIBUTE_TYPE_NUMERIC	'*'
+#define GNU_BUILD_ATTRIBUTE_TYPE_STRING		'$'
+#define GNU_BUILD_ATTRIBUTE_TYPE_BOOL_TRUE	'+'
+#define GNU_BUILD_ATTRIBUTE_TYPE_BOOL_FALSE	'!'
+
+/* Special characters inside GNU build attribute names.  */
+#define GNU_BUILD_ATTRIBUTE_VERSION	1
+#define GNU_BUILD_ATTRIBUTE_STACK_PROT	2
+#define GNU_BUILD_ATTRIBUTE_RELRO	3
+#define GNU_BUILD_ATTRIBUTE_STACK_SIZE	4
+#define GNU_BUILD_ATTRIBUTE_TOOL	5
+#define GNU_BUILD_ATTRIBUTE_ABI		6
+#define GNU_BUILD_ATTRIBUTE_PIC		7
+#define GNU_BUILD_ATTRIBUTE_SHORT_ENUM	8
 
 /* Move records.  */
 typedef struct