diff --git a/libc/kernel/common/linux/a.out.h b/libc/kernel/common/linux/a.out.h
new file mode 100644
index 0000000..7325304
--- /dev/null
+++ b/libc/kernel/common/linux/a.out.h
@@ -0,0 +1,220 @@
+/****************************************************************************
+ ****************************************************************************
+ ***
+ ***   This header was automatically generated from a Linux kernel header
+ ***   of the same name, to make information necessary for userspace to
+ ***   call into the kernel available to libc.  It contains only constants,
+ ***   structures, and macros generated from the original header, and thus,
+ ***   contains no copyrightable information.
+ ***
+ ****************************************************************************
+ ****************************************************************************/
+#ifndef __A_OUT_GNU_H__
+#define __A_OUT_GNU_H__
+
+#define __GNU_EXEC_MACROS__
+
+#ifndef __STRUCT_EXEC_OVERRIDE__
+
+#include <asm/a.out.h>
+
+#endif
+
+enum machine_type {
+#ifdef M_OLDSUN2
+ M__OLDSUN2 = M_OLDSUN2,
+#else
+ M_OLDSUN2 = 0,
+#endif
+#ifdef M_68010
+ M__68010 = M_68010,
+#else
+ M_68010 = 1,
+#endif
+#ifdef M_68020
+ M__68020 = M_68020,
+#else
+ M_68020 = 2,
+#endif
+#ifdef M_SPARC
+ M__SPARC = M_SPARC,
+#else
+ M_SPARC = 3,
+#endif
+
+ M_386 = 100,
+ M_MIPS1 = 151,
+ M_MIPS2 = 152
+};
+
+#ifndef N_MAGIC
+#define N_MAGIC(exec) ((exec).a_info & 0xffff)
+#endif
+#define N_MACHTYPE(exec) ((enum machine_type)(((exec).a_info >> 16) & 0xff))
+#define N_FLAGS(exec) (((exec).a_info >> 24) & 0xff)
+#define N_SET_INFO(exec, magic, type, flags)   ((exec).a_info = ((magic) & 0xffff)   | (((int)(type) & 0xff) << 16)   | (((flags) & 0xff) << 24))
+#define N_SET_MAGIC(exec, magic)   ((exec).a_info = (((exec).a_info & 0xffff0000) | ((magic) & 0xffff)))
+
+#define N_SET_MACHTYPE(exec, machtype)   ((exec).a_info =   ((exec).a_info&0xff00ffff) | ((((int)(machtype))&0xff) << 16))
+
+#define N_SET_FLAGS(exec, flags)   ((exec).a_info =   ((exec).a_info&0x00ffffff) | (((flags) & 0xff) << 24))
+
+#define OMAGIC 0407
+
+#define NMAGIC 0410
+
+#define ZMAGIC 0413
+
+#define QMAGIC 0314
+
+#define CMAGIC 0421
+
+#ifndef N_BADMAG
+#define N_BADMAG(x) (N_MAGIC(x) != OMAGIC   && N_MAGIC(x) != NMAGIC   && N_MAGIC(x) != ZMAGIC   && N_MAGIC(x) != QMAGIC)
+#endif
+
+#define _N_HDROFF(x) (1024 - sizeof (struct exec))
+
+#ifndef N_TXTOFF
+#define N_TXTOFF(x)   (N_MAGIC(x) == ZMAGIC ? _N_HDROFF((x)) + sizeof (struct exec) :   (N_MAGIC(x) == QMAGIC ? 0 : sizeof (struct exec)))
+#endif
+
+#ifndef N_DATOFF
+#define N_DATOFF(x) (N_TXTOFF(x) + (x).a_text)
+#endif
+
+#ifndef N_TRELOFF
+#define N_TRELOFF(x) (N_DATOFF(x) + (x).a_data)
+#endif
+
+#ifndef N_DRELOFF
+#define N_DRELOFF(x) (N_TRELOFF(x) + N_TRSIZE(x))
+#endif
+
+#ifndef N_SYMOFF
+#define N_SYMOFF(x) (N_DRELOFF(x) + N_DRSIZE(x))
+#endif
+
+#ifndef N_STROFF
+#define N_STROFF(x) (N_SYMOFF(x) + N_SYMSIZE(x))
+#endif
+
+#ifndef N_TXTADDR
+#define N_TXTADDR(x) (N_MAGIC(x) == QMAGIC ? PAGE_SIZE : 0)
+#endif
+
+#if defined(vax) || defined(hp300) || defined(pyr)
+#define SEGMENT_SIZE page_size
+#endif
+#ifdef sony
+#define SEGMENT_SIZE 0x2000
+#endif
+#ifdef is68k
+#define SEGMENT_SIZE 0x20000
+#endif
+#if defined(m68k) && defined(PORTAR)
+#define PAGE_SIZE 0x400
+#define SEGMENT_SIZE PAGE_SIZE
+#endif
+
+#ifdef linux
+#include <asm/page.h>
+#if defined(__i386__) || defined(__mc68000__)
+#define SEGMENT_SIZE 1024
+#else
+#ifndef SEGMENT_SIZE
+#define SEGMENT_SIZE PAGE_SIZE
+#endif
+#endif
+#endif
+
+#define _N_SEGMENT_ROUND(x) ALIGN(x, SEGMENT_SIZE)
+
+#define _N_TXTENDADDR(x) (N_TXTADDR(x)+(x).a_text)
+
+#ifndef N_DATADDR
+#define N_DATADDR(x)   (N_MAGIC(x)==OMAGIC? (_N_TXTENDADDR(x))   : (_N_SEGMENT_ROUND (_N_TXTENDADDR(x))))
+#endif
+
+#ifndef N_BSSADDR
+#define N_BSSADDR(x) (N_DATADDR(x) + (x).a_data)
+#endif
+
+#ifndef N_NLIST_DECLARED
+struct nlist {
+ union {
+ char *n_name;
+ struct nlist *n_next;
+ long n_strx;
+ } n_un;
+ unsigned char n_type;
+ char n_other;
+ short n_desc;
+ unsigned long n_value;
+};
+#endif
+
+#ifndef N_UNDF
+#define N_UNDF 0
+#endif
+#ifndef N_ABS
+#define N_ABS 2
+#endif
+#ifndef N_TEXT
+#define N_TEXT 4
+#endif
+#ifndef N_DATA
+#define N_DATA 6
+#endif
+#ifndef N_BSS
+#define N_BSS 8
+#endif
+#ifndef N_FN
+#define N_FN 15
+#endif
+
+#ifndef N_EXT
+#define N_EXT 1
+#endif
+#ifndef N_TYPE
+#define N_TYPE 036
+#endif
+#ifndef N_STAB
+#define N_STAB 0340
+#endif
+
+#define N_INDR 0xa
+
+#define N_SETA 0x14  
+#define N_SETT 0x16  
+#define N_SETD 0x18  
+#define N_SETB 0x1A  
+
+#define N_SETV 0x1C  
+
+#ifndef N_RELOCATION_INFO_DECLARED
+
+struct relocation_info
+{
+
+ int r_address;
+
+ unsigned int r_symbolnum:24;
+
+ unsigned int r_pcrel:1;
+
+ unsigned int r_length:2;
+
+ unsigned int r_extern:1;
+
+#ifdef NS32K
+ unsigned r_bsr:1;
+ unsigned r_disp:1;
+ unsigned r_pad:2;
+#else
+ unsigned int r_pad:4;
+#endif
+};
+#endif
+
+#endif