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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-17 02:20:36 +0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-17 02:20:36 +0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/linux/flat.h
downloadlinux-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.xz
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'include/linux/flat.h')
-rw-r--r--include/linux/flat.h100
1 files changed, 100 insertions, 0 deletions
diff --git a/include/linux/flat.h b/include/linux/flat.h
new file mode 100644
index 000000000000..ec56852e2659
--- /dev/null
+++ b/include/linux/flat.h
@@ -0,0 +1,100 @@
+/*
+ * Copyright (C) 2002-2003 David McCullough <davidm@snapgear.com>
+ * Copyright (C) 1998 Kenneth Albanowski <kjahds@kjahds.com>
+ * The Silver Hammer Group, Ltd.
+ *
+ * This file provides the definitions and structures needed to
+ * support uClinux flat-format executables.
+ */
+
+#ifndef _LINUX_FLAT_H
+#define _LINUX_FLAT_H
+
+#ifdef __KERNEL__
+#include <asm/flat.h>
+#endif
+
+#define FLAT_VERSION 0x00000004L
+
+#ifdef CONFIG_BINFMT_SHARED_FLAT
+#define MAX_SHARED_LIBS (4)
+#else
+#define MAX_SHARED_LIBS (1)
+#endif
+
+/*
+ * To make everything easier to port and manage cross platform
+ * development, all fields are in network byte order.
+ */
+
+struct flat_hdr {
+ char magic[4];
+ unsigned long rev; /* version (as above) */
+ unsigned long entry; /* Offset of first executable instruction
+ with text segment from beginning of file */
+ unsigned long data_start; /* Offset of data segment from beginning of
+ file */
+ unsigned long data_end; /* Offset of end of data segment
+ from beginning of file */
+ unsigned long bss_end; /* Offset of end of bss segment from beginning
+ of file */
+
+ /* (It is assumed that data_end through bss_end forms the bss segment.) */
+
+ unsigned long stack_size; /* Size of stack, in bytes */
+ unsigned long reloc_start; /* Offset of relocation records from
+ beginning of file */
+ unsigned long reloc_count; /* Number of relocation records */
+ unsigned long flags;
+ unsigned long build_date; /* When the program/library was built */
+ unsigned long filler[5]; /* Reservered, set to zero */
+};
+
+#define FLAT_FLAG_RAM 0x0001 /* load program entirely into RAM */
+#define FLAT_FLAG_GOTPIC 0x0002 /* program is PIC with GOT */
+#define FLAT_FLAG_GZIP 0x0004 /* all but the header is compressed */
+#define FLAT_FLAG_GZDATA 0x0008 /* only data/relocs are compressed (for XIP) */
+#define FLAT_FLAG_KTRACE 0x0010 /* output useful kernel trace for debugging */
+
+
+#ifdef __KERNEL__ /* so systems without linux headers can compile the apps */
+/*
+ * While it would be nice to keep this header clean, users of older
+ * tools still need this support in the kernel. So this section is
+ * purely for compatibility with old tool chains.
+ *
+ * DO NOT make changes or enhancements to the old format please, just work
+ * with the format above, except to fix bugs with old format support.
+ */
+
+#include <asm/byteorder.h>
+
+#define OLD_FLAT_VERSION 0x00000002L
+#define OLD_FLAT_RELOC_TYPE_TEXT 0
+#define OLD_FLAT_RELOC_TYPE_DATA 1
+#define OLD_FLAT_RELOC_TYPE_BSS 2
+
+typedef union {
+ unsigned long value;
+ struct {
+# if defined(mc68000) && !defined(CONFIG_COLDFIRE)
+ signed long offset : 30;
+ unsigned long type : 2;
+# define OLD_FLAT_FLAG_RAM 0x1 /* load program entirely into RAM */
+# elif defined(__BIG_ENDIAN_BITFIELD)
+ unsigned long type : 2;
+ signed long offset : 30;
+# define OLD_FLAT_FLAG_RAM 0x1 /* load program entirely into RAM */
+# elif defined(__LITTLE_ENDIAN_BITFIELD)
+ signed long offset : 30;
+ unsigned long type : 2;
+# define OLD_FLAT_FLAG_RAM 0x1 /* load program entirely into RAM */
+# else
+# error "Unknown bitfield order for flat files."
+# endif
+ } reloc;
+} flat_v2_reloc_t;
+
+#endif /* __KERNEL__ */
+
+#endif /* _LINUX_FLAT_H */