libyasm/dbgfmt.h

/**
 * \file libyasm/dbgfmt.h
 * \brief YASM debug format interface.
 *
 * \license
 *  Copyright (C) 2002-2007  Peter Johnson
 *
 * 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 AUTHOR AND OTHER 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 AUTHOR OR OTHER 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.
 * \endlicense
 */
#ifndef YASM_DBGFMT_H
#define YASM_DBGFMT_H

#ifndef YASM_DOXYGEN
/** Base #yasm_dbgfmt structure.  Must be present as the first element in any
 * #yasm_dbgfmt implementation.
 */
typedef struct yasm_dbgfmt_base {
    /** #yasm_dbgfmt_module implementation for this debug format. */
    const struct yasm_dbgfmt_module *module;
} yasm_dbgfmt_base;
#endif

/** Debug format module interface. */
struct yasm_dbgfmt_module {
    /** One-line description of the debug format. */
    const char *name;

    /** Keyword used to select debug format. */
    const char *keyword;

    /** NULL-terminated list of directives.  NULL if none. */
    /*@null@*/ const yasm_directive *directives;

    /** Create debug format.
     * Module-level implementation of yasm_dbgfmt_create().
     * The filenames are provided solely for informational purposes.
     * \param object        object
     * \return NULL if object format does not provide needed support.
     */
    /*@null@*/ /*@only@*/ yasm_dbgfmt * (*create) (yasm_object *object);

    /** Module-level implementation of yasm_dbgfmt_destroy().
     * Call yasm_dbgfmt_destroy() instead of calling this function.
     */
    void (*destroy) (/*@only@*/ yasm_dbgfmt *dbgfmt);

    /** Module-level implementation of yasm_dbgfmt_generate().
     * Call yasm_dbgfmt_generate() instead of calling this function.
     */
    void (*generate) (yasm_object *object, yasm_linemap *linemap,
                      yasm_errwarns *errwarns);
};

/** Get the keyword used to select a debug format.
 * \param dbgfmt    debug format
 * \return keyword
 */
const char *yasm_dbgfmt_keyword(const yasm_dbgfmt *dbgfmt);

/** Initialize debug output for use.  Must call before any other debug
 * format functions.  The filenames are provided solely for informational
 * purposes.
 * \param module        debug format module
 * \param object        object to generate debugging information for
 * \return NULL if object format does not provide needed support.
 */
/*@null@*/ /*@only@*/ yasm_dbgfmt *yasm_dbgfmt_create
    (const yasm_dbgfmt_module *module, yasm_object *object);

/** Cleans up any allocated debug format memory.
 * \param dbgfmt        debug format
 */
void yasm_dbgfmt_destroy(/*@only@*/ yasm_dbgfmt *dbgfmt);

/** Generate debugging information bytecodes.
 * \param object        object
 * \param linemap       virtual/physical line mapping
 * \param errwarns      error/warning set
 * \note Errors and warnings are stored into errwarns.
 */
void yasm_dbgfmt_generate(yasm_object *object, yasm_linemap *linemap,
                          yasm_errwarns *errwarns);

#ifndef YASM_DOXYGEN

/* Inline macro implementations for dbgfmt functions */

#define yasm_dbgfmt_keyword(dbgfmt) \
    (((yasm_dbgfmt_base *)dbgfmt)->module->keyword)

#define yasm_dbgfmt_create(module, object) \
    module->create(object)

#define yasm_dbgfmt_destroy(dbgfmt) \
    ((yasm_dbgfmt_base *)dbgfmt)->module->destroy(dbgfmt)
#define yasm_dbgfmt_generate(object, linemap, ews) \
    ((yasm_dbgfmt_base *)((object)->dbgfmt))->module->generate \
        (object, linemap, ews)

#endif

#endif