diff --git a/headers/private/system/elf32.h b/headers/private/system/elf32.h
index 9a4aec0e29..4feee0692b 100644
--- a/headers/private/system/elf32.h
+++ b/headers/private/system/elf32.h
@@ -1,9 +1,9 @@
 /*
- * Copyright 2002-2009, Haiku Inc. All Rights Reserved.
- * Distributed under the terms of the MIT license.
- *
  * Copyright 2001, Travis Geiselbrecht. All rights reserved.
  * Distributed under the terms of the NewOS License.
+ *
+ * Copyright 2002-2011, Haiku Inc. All Rights Reserved.
+ * Distributed under the terms of the MIT license.
  */
 #ifndef _ELF32_H
 #define _ELF32_H
@@ -60,6 +60,54 @@ struct Elf32_Ehdr {
 #define EI_VERSION	6
 #define EI_PAD		7
 
+// e_machine (Architecture)
+#define EM_NONE			0 // No machine
+#define EM_M32			1 // AT&T WE 32100
+#define EM_SPARC		2 // Sparc
+#define EM_386			3 // Intel 80386
+#define EM_68K			4 // Motorola m68k family
+#define EM_88K			5 // Motorola m88k family
+#define EM_486			6 // Intel 80486, Reserved for future use
+#define EM_860			7 // Intel 80860
+#define EM_MIPS			8 // MIPS R3000 (officially, big-endian only)
+#define EM_S370			9 // IBM System/370
+#define EM_MIPS_RS3_LE	10 // MIPS R3000 little-endian, Deprecated
+#define EM_PARISC		15 // HPPA
+#define EM_VPP550		17 // Fujitsu VPP500
+#define EM_SPARC32PLUS	18 // Sun "v8plus"
+#define EM_960			19 // Intel 80960
+#define EM_PPC			20 // PowerPC
+#define EM_PPC64		21 // 64-bit PowerPC
+#define EM_S390			22 // IBM S/390
+#define EM_V800			36 // NEC V800 series
+#define EM_FR20			37 // Fujitsu FR20
+#define EM_RH32			38 // TRW RH32
+#define EM_MCORE		39 // Motorola M*Core
+#define EM_RCE			39 // Old name for MCore
+#define EM_ARM			40 // ARM
+#define EM_OLD_ALPHA	41 // Digital Alpha
+#define EM_SH			42 // Renesas / SuperH SH
+#define EM_SPARCV9		43 // SPARC v9 64-bit
+#define EM_TRICORE		44 // Siemens Tricore embedded processor
+#define EM_ARC			45 // ARC Cores
+#define EM_H8_300		46 // Renesas H8/300
+#define EM_H8_300H		47 // Renesas H8/300H
+#define EM_H8S			48 // Renesas H8S
+#define EM_H8_500		49 // Renesas H8/500
+#define EM_IA_64		50 // Intel IA-64 Processor
+#define EM_MIPS_X		51 // Stanford MIPS-X
+#define EM_COLDFIRE		52 // Motorola Coldfire
+#define EM_68HC12		53 // Motorola M68HC12
+#define EM_MMA			54 // Fujitsu Multimedia Accelerator
+#define EM_PCP			55 // Siemens PCP
+#define EM_NCPU			56 // Sony nCPU embedded RISC processor
+#define EM_NDR1			57 // Denso NDR1 microprocesspr
+#define EM_STARCORE		58 // Motorola Star*Core processor
+#define EM_ME16			59 // Toyota ME16 processor
+#define EM_ST100		60 // STMicroelectronics ST100 processor
+#define EM_TINYJ		61 // Advanced Logic Corp. TinyJ embedded processor
+#define EM_X86_64		62 // Advanced Micro Devices X86-64 processor
+
 // architecture class (EI_CLASS)
 #define ELFCLASS32	1
 #define ELFCLASS64	2