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Diffstat (limited to 'nuttx/include/nxflat.h')
| -rw-r--r-- | nuttx/include/nxflat.h | 204 |
1 files changed, 0 insertions, 204 deletions
diff --git a/nuttx/include/nxflat.h b/nuttx/include/nxflat.h deleted file mode 100644 index 82e667897..000000000 --- a/nuttx/include/nxflat.h +++ /dev/null @@ -1,204 +0,0 @@ -/**************************************************************************** - * include/nxflat.h - * - * Copyright (C) 2009 Gregory Nutt. All rights reserved. - * Author: Gregory Nutt <gnutt@nuttx.org> - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * 3. Neither the name NuttX nor the names of its contributors may be - * used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS - * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE - * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, - * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS - * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED - * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN - * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - * - ****************************************************************************/ - -#ifndef __INCLUDE_NXFLAT_H -#define __INCLUDE_NXFLAT_H - -/**************************************************************************** - * Included Files - ****************************************************************************/ - -#include <nuttx/config.h> - -#include <sys/types.h> -#include <stdint.h> - -/**************************************************************************** - * Pre-processor Definitions - ****************************************************************************/ - -#define NXFLAT_MAX_STRING_SIZE 64 /* Largest size of string (w/zterminator) */ -#define NXFLAT_MAGIC "NxFT" /* NXFLAT magic number */ - -/**************************************************************************** - * Public Types - ****************************************************************************/ - -/**************************************************************************** - * The NXFLAT file header - * - * The elements within this structure are stored in network order (i.e., - * ntohs() and ntohl() should be used to access fields within the - * header. - ****************************************************************************/ - -struct nxflat_hdr_s -{ - /* The "magic number" identifying the file type. This field should contain - * "NxFT". NOTE that there is no other versioning information other than - * this magic number. - */ - - char h_magic[4]; - - /* The following fields provide the memory map for the nxflat binary. - * - * h_entry - Offset to the first executable insruction from - * the beginning of the file. - * h_datastart - Offset to the beginning of the data segment from - * the beginning of the file. This field can also - * interpreted as the size of the ISpace segment. - * h_dataend - Offset to the end of the data segment from the - * beginning of the file. - * h_bssend - Offset to the end of bss segment from the beginning - * of the file. - * - * The text segment can be considered to be the contiguous (unrelocated) - * address space range from address zero through (but not including) - * h_datastart. - * - * The size of the data/bss segment includes (as a minimum) the data - * and bss regions (bss_end - data_start) as well as the size of the - * stack. At run time, this region will also include program arguments - * and environement variables. - * - * The bss segment is data_end through bss_end. - */ - - uint32_t h_entry; - uint32_t h_datastart; - uint32_t h_dataend; - uint32_t h_bssend; - - /* Size of stack, in bytes */ - - uint32_t h_stacksize; - - /* Relocation entries: - * - * h_relocstart - Offset to the beginning of an array of relocation - * records (struct nxflat_reloc). The offset is - * relative to the start of the file - */ - - uint32_t h_relocstart; /* Offset of relocation records */ - - /* Imported symbol table (NOTE no symbols are exported): - * - * h_importsymbols - Offset to the beginning of an array of imported - * symbol structures (struct nxflat_import_s). The - * h_importsymbols offset is relative to the - * beginning of the file. Each entry of the - * array contains an uint32_t offset (again from - * the beginning of the file) to the name of - * a symbol string. This string is null-terminated. - */ - - uint32_t h_importsymbols; /* Offset to list of imported symbols */ - - /* 16-bit counts - * - * h_reloccount - The number of relocation records in the arry - * h_importcount - The number of records in the h_importsymbols array. - */ - - uint16_t h_reloccount; /* Number of relocation records */ - uint16_t h_importcount; /* Number of imported symbols */ -}; - -/**************************************************************************** - * NXFLAT Relocation types. - * - * The relocation records are an array of the following type. - ****************************************************************************/ - -struct nxflat_reloc_s -{ - uint32_t r_info; /* Bit-encoded relocation info */ -}; - -/* Pack the type and the offset into one 32-bit value */ - -#define NXFLAT_RELOC(t,o) (((uint32_t)((t) & 3) << 30) | ((o) & 0x3fffffff)) - -/* The top three bits of the relocation info is the relocation type (see the - * NXFLAT_RELOC_TYPE_* definitions below. This is an unsigned value. - */ - -#define NXFLAT_RELOC_TYPE(r) ((uint32_t)(r) >> 30) - -/* The bottom 28 bits of the relocation info is the (non-negative) offset into - * the D-Space that needs the fixup. - */ - -#define NXFLAT_RELOC_OFFSET(r) ((uint32_t)(r) & 0x3fffffff) - -/* These are possible values for the relocation type: - * - * NXFLAT_RELOC_TYPE_REL32I Meaning: Object file contains a 32-bit offset - * into I-Space at the offset. - * Fixup: Add mapped I-Space address to the offset. - * NXFLAT_RELOC_TYPE_REL32D Meaning: Object file contains a 32-bit offset - * into D-Space at the offset. - * Fixup: Add allocated D-Space address to the - * offset. - * NXFLAT_RELOC_TYPE_REL32ID Meaning: Object file contains a 32-bit offset - * into I-Space at the offset that will - * unfortunately be references relative - * to the GOT - * Fixup: Add allocated the mapped I-Space - * address MINUS the allocated D-Space - * address to the offset. - */ - -#define NXFLAT_RELOC_TYPE_REL32I 0 -#define NXFLAT_RELOC_TYPE_REL32D 1 -#undef NXFLAT_RELOC_TYPE_REL32ID /* May not need */ -#define NXFLAT_RELOC_TYPE_NUM 2 /* Number of relocation types */ - -/**************************************************************************** - * NXFLAT Imported symbol type - * - * The imported symbols are an array of the following type. The fields - * in each element are stored in native machine order. - ****************************************************************************/ - -struct nxflat_import_s -{ - uint32_t i_funcname; /* Offset to name of imported function */ - uint32_t i_funcaddress; /* Resolved address of imported function */ -}; - -#endif /* __INCLUDE_NXFLAT_H */ |