mirror of
https://github.com/yasm/yasm
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2d0119c5b7
bytes and offsets, but relocations are not yet indicated. Also, this outputs post-preprocessed source, so no comments, etc, are visible in the list file. * listfmt.h: New header file describing listfmt module interface. * coretype.h: Declare new yasm_listfmt typedef. * libyasm.h: Include listfmt.h. * libyasm/Makefile.inc (modinclude_HEADERS): Add listfmt.h. * yasm-module.h (module_type): Add MODULE_LISTFMT for listfmts. (load_listfmt_module, list_listfmts): New macros for listfmts. * yasm-module.c (module_type_str): Add listfmt string for MODULE_LISTFMT. (list_module_load): Add support for MODULE_LISTFMT. * bytecode.h (yasm_bc_tobytes): Comment clarification on effect of calling yasm_bc_tobytes twice on the same bytecode. * linemgr.h: Replace support for associated data with support for bytecode and source line information. (yasm_linemap_get_data): Remove. (yasm_linemap_get_source): Add. (yasm_linemap_add_data): Remove. (yasm_linemap_add_source): Add. * linemgr.c (yasm_linemap, yasm_linemap_create, yasm_linemap_destroy) (yasm_linemap_add_data, yasm_linemap_add_source, yasm_linemap_get_data) (yasm_linemap_get_source): Likewise. * nasm-token.re (fill): Save previous 2 lines instead of previous 1 line. (destroy_line, print_line, line_assoc_data): Remove. (save_line): Save line in structure instead of calling yasm_linemap_add_data. * nasm-bison.y (input rule): Call yasm_linemap_add_source here. * nasm-parser.h (yasm_parser_nasm): Add second line of storage and save_last variable to toggle between the two lines. * nasm-parser.c (nasm_parser_do_parse): Initialize save_last. * modules/Makefile.inc: Include new modules/listfmts/Makefile.inc. * modules/listfmts/Makefile.inc: New; includes modules/listfmts/nasm/Makefile.inc. * modules/listfmts/nasm/Makefile.inc: New build file for NASM-like listfmt. * nasm-listfmt.c: New NASM-like listfmt. * yasm.c: Enable use of listfmts, and default to NASM listfmt. (list_filename, cur_listfmt, cur_listfmt_module): New listfmt variables. (opt_listfmt_handler, opt_listfile_handler): New listfmt functions. (options): Add --lformat (-L) and --list (-l) options. (main): Load "nasm" listfmt as default if none selected. Enable saving of input lines if list output file enabled. Open and write to the list file. (open_obj): Rename to open_file and make more generic. (cleanup): Destroy listfmt and list filename if created. svn path=/trunk/yasm/; revision=1152
290 lines
11 KiB
C
290 lines
11 KiB
C
/**
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* \file libyasm/bytecode.h
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* \brief YASM bytecode interface.
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*
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* \rcs
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* $Id$
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* \endrcs
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*
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* \license
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* Copyright (C) 2001 Peter Johnson
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* - Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* - Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND OTHER CONTRIBUTORS ``AS IS''
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR OTHER CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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* \endlicense
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*/
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#ifndef YASM_BYTECODE_H
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#define YASM_BYTECODE_H
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/** An effective address (opaque type). */
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typedef struct yasm_effaddr yasm_effaddr;
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/** An immediate value (opaque type). */
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typedef struct yasm_immval yasm_immval;
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/** A data value (opaque type). */
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typedef struct yasm_dataval yasm_dataval;
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/** A list of data values (opaque type). */
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typedef struct yasm_datavalhead yasm_datavalhead;
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#ifdef YASM_LIB_INTERNAL
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/*@reldef@*/ STAILQ_HEAD(yasm_datavalhead, yasm_dataval);
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#endif
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/** Return value flags for yasm_bc_resolve(). */
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typedef enum {
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YASM_BC_RESOLVE_NONE = 0, /**< Ok, but length is not minimum. */
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YASM_BC_RESOLVE_ERROR = 1<<0, /**< Error found, output. */
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YASM_BC_RESOLVE_MIN_LEN = 1<<1, /**< Length is minimum possible. */
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YASM_BC_RESOLVE_UNKNOWN_LEN = 1<<2 /**< Length indeterminate. */
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} yasm_bc_resolve_flags;
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/** Create an immediate value from an unsigned integer.
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* \param int_val unsigned integer
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* \param line virtual line (from yasm_linemap)
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* \return Newly allocated immediate value.
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*/
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/*@only@*/ yasm_immval *yasm_imm_create_int(unsigned long int_val,
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unsigned long line);
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/** Create an immediate value from an expression.
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* \param e expression (kept, do not free).
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* \return Newly allocated immediate value.
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*/
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/*@only@*/ yasm_immval *yasm_imm_create_expr(/*@keep@*/ yasm_expr *e);
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/** Get the displacement portion of an effective address.
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* \param ea effective address
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* \return Expression representing the displacement (read-only).
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*/
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/*@observer@*/ const yasm_expr *yasm_ea_get_disp(const yasm_effaddr *ea);
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/** Set the length of the displacement portion of an effective address.
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* The length is specified in bytes.
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* \param ea effective address
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* \param len length in bytes
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*/
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void yasm_ea_set_len(yasm_effaddr *ea, unsigned int len);
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/** Set/clear nosplit flag of an effective address.
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* The nosplit flag indicates (for architectures that support complex effective
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* addresses such as x86) if various types of complex effective addresses can
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* be split into different forms in order to minimize instruction length.
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* \param ea effective address
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* \param nosplit nosplit flag setting (0=splits allowed, nonzero=splits
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* not allowed)
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*/
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void yasm_ea_set_nosplit(yasm_effaddr *ea, unsigned int nosplit);
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/** Delete (free allocated memory for) an effective address.
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* \param ea effective address (only pointer to it).
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*/
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void yasm_ea_destroy(/*@only@*/ yasm_effaddr *ea);
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/** Print an effective address. For debugging purposes.
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* \param f file
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* \param indent_level indentation level
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* \param ea effective address
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*/
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void yasm_ea_print(const yasm_effaddr *ea, FILE *f, int indent_level);
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/** Set multiple field of a bytecode.
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* A bytecode can be repeated a number of times when output. This function
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* sets that multiple.
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* \param bc bytecode
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* \param e multiple (kept, do not free)
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*/
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void yasm_bc_set_multiple(yasm_bytecode *bc, /*@keep@*/ yasm_expr *e);
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/** Create a bytecode containing data value(s).
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* \param datahead list of data values (kept, do not free)
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* \param size storage size (in bytes) for each data value
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* \param line virtual line (from yasm_linemap)
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* \return Newly allocated bytecode.
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*/
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/*@only@*/ yasm_bytecode *yasm_bc_create_data
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(yasm_datavalhead *datahead, unsigned int size, unsigned long line);
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/** Create a bytecode reserving space.
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* \param numitems number of reserve "items" (kept, do not free)
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* \param itemsize reserved size (in bytes) for each item
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* \param line virtual line (from yasm_linemap)
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* \return Newly allocated bytecode.
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*/
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/*@only@*/ yasm_bytecode *yasm_bc_create_reserve
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(/*@only@*/ yasm_expr *numitems, unsigned int itemsize,
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unsigned long line);
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/** Create a bytecode that includes a binary file verbatim.
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* \param filename full path to binary file (kept, do not free)
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* \param start starting location in file (in bytes) to read data from
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* (kept, do not free); may be NULL to indicate 0
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* \param maxlen maximum number of bytes to read from the file (kept, do
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* do not free); may be NULL to indicate no maximum
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* \param line virtual line (from yasm_linemap) for the bytecode
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* \return Newly allocated bytecode.
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*/
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/*@only@*/ yasm_bytecode *yasm_bc_create_incbin
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(/*@only@*/ char *filename, /*@only@*/ /*@null@*/ yasm_expr *start,
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/*@only@*/ /*@null@*/ yasm_expr *maxlen, unsigned long line);
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/** Create a bytecode that aligns the following bytecode to a boundary.
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* \param boundary byte alignment (must be a power of two)
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* \param line virtual line (from yasm_linemap)
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* \return Newly allocated bytecode.
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*/
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/*@only@*/ yasm_bytecode *yasm_bc_create_align
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(unsigned long boundary, unsigned long line);
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/** Get the section that contains a particular bytecode.
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* \param bc bytecode
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* \return Section containing bc (can be NULL if bytecode is not part of a
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* section).
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*/
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/*@dependent@*/ /*@null@*/ yasm_section *yasm_bc_get_section
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(yasm_bytecode *bc);
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#ifdef YASM_LIB_INTERNAL
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/** Add to the list of symrecs that reference a bytecode. For symrec use
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* only.
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* \param bc bytecode
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* \param sym symbol
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*/
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void yasm_bc__add_symrec(yasm_bytecode *bc, /*@dependent@*/ yasm_symrec *sym);
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#endif
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/** Delete (free allocated memory for) a bytecode.
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* \param bc bytecode (only pointer to it); may be NULL
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*/
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void yasm_bc_destroy(/*@only@*/ /*@null@*/ yasm_bytecode *bc);
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/** Print a bytecode. For debugging purposes.
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* \param f file
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* \param indent_level indentation level
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* \param bc bytecode
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*/
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void yasm_bc_print(const yasm_bytecode *bc, FILE *f, int indent_level);
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/** Common version of calc_bc_dist that takes offsets from bytecodes.
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* Should be used for the final stages of optimizers as well as in yasm_objfmt
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* yasm_expr output functions.
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* \see yasm_calc_bc_dist_func for parameter descriptions.
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*/
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/*@null@*/ yasm_intnum *yasm_common_calc_bc_dist
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(/*@null@*/ yasm_bytecode *precbc1, /*@null@*/ yasm_bytecode *precbc2);
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/** Resolve labels in a bytecode, and calculate its length.
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* Tries to minimize the length as much as possible.
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* \note Sometimes it's impossible to determine if a length is the minimum
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* possible. In this case, this function returns that the length is NOT
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* the minimum.
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* \param bc bytecode
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* \param save when zero, this function does \em not modify bc other
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* than the length/size values (i.e. it doesn't keep the
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* values returned by calc_bc_dist except temporarily to
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* try to minimize the length); when nonzero, all fields
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* in bc may be modified by this function
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* \param calc_bc_dist function used to determine bytecode distance
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* \return Flags indicating whether the length is the minimum possible,
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* indeterminate, and if there was an error recognized (and output)
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* during execution.
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*/
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yasm_bc_resolve_flags yasm_bc_resolve(yasm_bytecode *bc, int save,
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yasm_calc_bc_dist_func calc_bc_dist);
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/** Convert a bytecode into its byte representation.
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* \param bc bytecode
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* \param buf byte representation destination buffer
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* \param bufsize size of buf (in bytes) prior to call; size of the
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* generated data after call
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* \param multiple number of times the data should be duplicated when
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* written to the object file [output]
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* \param gap if nonzero, indicates the data does not really need to
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* exist in the object file; if nonzero, contents of buf
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* are undefined [output]
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* \param d data to pass to each call to output_expr/output_reloc
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* \param output_expr function to call to convert expressions into their byte
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* representation
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* \param output_reloc function to call to output relocation entries
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* for a single sym
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* \return Newly allocated buffer that should be used instead of buf for
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* reading the byte representation, or NULL if buf was big enough to
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* hold the entire byte representation.
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* \note Calling twice on the same bytecode may \em not produce the same
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* results on the second call, as calling this function may result in
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* non-reversible changes to the bytecode.
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*/
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/*@null@*/ /*@only@*/ unsigned char *yasm_bc_tobytes
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(yasm_bytecode *bc, unsigned char *buf, unsigned long *bufsize,
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/*@out@*/ unsigned long *multiple, /*@out@*/ int *gap, void *d,
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yasm_output_expr_func output_expr,
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/*@null@*/ yasm_output_reloc_func output_reloc)
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/*@sets *buf@*/;
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/** Create a new data value from an expression.
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* \param expn expression
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* \return Newly allocated data value.
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*/
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yasm_dataval *yasm_dv_create_expr(/*@keep@*/ yasm_expr *expn);
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/** Create a new data value from a float.
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* \param flt floating point value
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* \return Newly allocated data value.
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*/
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yasm_dataval *yasm_dv_create_float(/*@keep@*/ yasm_floatnum *flt);
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/** Create a new data value from a string.
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* \param str_val string
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* \return Newly allocated data value.
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*/
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yasm_dataval *yasm_dv_create_string(/*@keep@*/ char *str_val);
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/** Initialize a list of data values.
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* \param headp list of data values
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*/
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void yasm_dvs_initialize(yasm_datavalhead *headp);
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#ifdef YASM_LIB_INTERNAL
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#define yasm_dvs_initialize(headp) STAILQ_INIT(headp)
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#endif
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/** Delete (free allocated memory for) a list of data values.
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* \param headp list of data values
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*/
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void yasm_dvs_destroy(yasm_datavalhead *headp);
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/** Add data value to the end of a list of data values.
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* \note Does not make a copy of the data value; so don't pass this function
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* static or local variables, and discard the dv pointer after calling
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* this function.
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* \param headp data value list
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* \param dv data value (may be NULL)
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* \return If data value was actually appended (it wasn't NULL), the data
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* value; otherwise NULL.
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*/
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/*@null@*/ yasm_dataval *yasm_dvs_append
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(yasm_datavalhead *headp, /*@returned@*/ /*@null@*/ yasm_dataval *dv);
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/** Print a data value list. For debugging purposes.
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* \param f file
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* \param indent_level indentation level
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* \param headp data value list
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*/
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void yasm_dvs_print(const yasm_datavalhead *headp, FILE *f, int indent_level);
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#endif
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