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Diffstat (limited to 'vere/ext/nasm/include/rdoff.h')
| -rw-r--r-- | vere/ext/nasm/include/rdoff.h | 169 |
1 files changed, 169 insertions, 0 deletions
diff --git a/vere/ext/nasm/include/rdoff.h b/vere/ext/nasm/include/rdoff.h new file mode 100644 index 0000000..973be8c --- /dev/null +++ b/vere/ext/nasm/include/rdoff.h @@ -0,0 +1,169 @@ +/* ----------------------------------------------------------------------- * + * + * Copyright 1996-2017 The NASM Authors - All Rights Reserved + * See the file AUTHORS included with the NASM distribution for + * the specific copyright holders. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following + * conditions are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * 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. + * + * 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. + * + * ----------------------------------------------------------------------- */ + +/* + * rdoff.h RDOFF Object File manipulation routines header file + */ + +#ifndef RDOFF_H +#define RDOFF_H 1 + +/* + * RDOFF definitions. They are used by RDOFF utilities and by NASM's + * 'outrdf2.c' output module. + */ + +/* RDOFF format revision (currently used only when printing the version) */ +#define RDOFF2_REVISION "0.6.1" + +/* RDOFF2 file signature */ +#define RDOFF2_SIGNATURE "RDOFF2" + +/* Maximum size of an import/export label (including trailing zero) */ +#define EXIM_LABEL_MAX 256 + +/* Maximum size of library or module name (including trailing zero) */ +#define MODLIB_NAME_MAX 128 + +/* Maximum number of segments that we can handle in one file */ +#define RDF_MAXSEGS 64 + +/* Record types that may present the RDOFF header */ +#define RDFREC_GENERIC 0 +#define RDFREC_RELOC 1 +#define RDFREC_IMPORT 2 +#define RDFREC_GLOBAL 3 +#define RDFREC_DLL 4 +#define RDFREC_BSS 5 +#define RDFREC_SEGRELOC 6 +#define RDFREC_FARIMPORT 7 +#define RDFREC_MODNAME 8 +#define RDFREC_COMMON 10 + +/* + * Generic record - contains the type and length field, plus a 128 byte + * array 'data' + */ +struct GenericRec { + uint8_t type; + uint8_t reclen; + char data[128]; +}; + +/* + * Relocation record + */ +struct RelocRec { + uint8_t type; /* must be 1 */ + uint8_t reclen; /* content length */ + uint8_t segment; /* only 0 for code, or 1 for data supported, + but add 64 for relative refs (ie do not require + reloc @ loadtime, only linkage) */ + int32_t offset; /* from start of segment in which reference is loc'd */ + uint8_t length; /* 1 2 or 4 bytes */ + uint16_t refseg; /* segment to which reference refers to */ +}; + +/* + * Extern/import record + */ +struct ImportRec { + uint8_t type; /* must be 2 */ + uint8_t reclen; /* content length */ + uint8_t flags; /* SYM_* flags (see below) */ + uint16_t segment; /* segment number allocated to the label for reloc + records - label is assumed to be at offset zero + in this segment, so linker must fix up with offset + of segment and of offset within segment */ + char label[EXIM_LABEL_MAX]; /* zero terminated, should be written to file + until the zero, but not after it */ +}; + +/* + * Public/export record + */ +struct ExportRec { + uint8_t type; /* must be 3 */ + uint8_t reclen; /* content length */ + uint8_t flags; /* SYM_* flags (see below) */ + uint8_t segment; /* segment referred to (0/1/2) */ + int32_t offset; /* offset within segment */ + char label[EXIM_LABEL_MAX]; /* zero terminated as in import */ +}; + +/* + * DLL record + */ +struct DLLRec { + uint8_t type; /* must be 4 */ + uint8_t reclen; /* content length */ + char libname[MODLIB_NAME_MAX]; /* name of library to link with at load time */ +}; + +/* + * BSS record + */ +struct BSSRec { + uint8_t type; /* must be 5 */ + uint8_t reclen; /* content length */ + int32_t amount; /* number of bytes BSS to reserve */ +}; + +/* + * Module name record + */ +struct ModRec { + uint8_t type; /* must be 8 */ + uint8_t reclen; /* content length */ + char modname[MODLIB_NAME_MAX]; /* module name */ +}; + +/* + * Common variable record + */ +struct CommonRec { + uint8_t type; /* must be 10 */ + uint8_t reclen; /* equals 7+label length */ + uint16_t segment; /* segment number */ + int32_t size; /* size of common variable */ + uint16_t align; /* alignment (power of two) */ + char label[EXIM_LABEL_MAX]; /* zero terminated as in import */ +}; + +/* Flags for ExportRec */ +#define SYM_DATA 1 +#define SYM_FUNCTION 2 +#define SYM_GLOBAL 4 +#define SYM_IMPORT 8 + +#endif /* RDOFF_H */ |