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https://github.com/yasm/yasm
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b7f2fbc64f
Not default nor even distributed in the .tar.gz, the cmake build allows for loadable yasm plugins by building libyasm as a shared library. Example plugins are in the plugins/ directory, and may be loaded into a cmake-built yasm using the -N command line option (non-cmake builds will not have this option). Tested only on Linux so far, but should be relatively painless to port to Windows thanks to the use of cmake rather than libtool to create shared libraries. The only modification to the main source tree is some conditional-compiled additions to yasm.c. svn path=/trunk/yasm/; revision=2098
127 lines
3.9 KiB
C
127 lines
3.9 KiB
C
/*
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* YASM module loader
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*
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* Copyright (C) 2004-2007 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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* 1. 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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* 2. 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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*/
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#include <util.h>
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/*@unused@*/ RCSID("$Id: module.in 2080 2008-04-30 04:40:29Z peter $");
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#include <libyasm.h>
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typedef struct loaded_module {
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const char *keyword; /* module keyword */
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void *data; /* associated data */
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} loaded_module;
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static HAMT *loaded_modules[] = {NULL, NULL, NULL, NULL, NULL, NULL};
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static void
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load_module_destroy(/*@only@*/ void *data)
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{
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/* do nothing */
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}
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void *
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yasm_load_module(yasm_module_type type, const char *keyword)
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{
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if (!loaded_modules[type])
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return NULL;
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return HAMT_search(loaded_modules[type], keyword);
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}
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void
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yasm_register_module(yasm_module_type type, const char *keyword, void *data)
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{
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int replace = 1;
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assert(type < sizeof(loaded_modules));
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if (!loaded_modules[type])
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loaded_modules[type] = HAMT_create(0, yasm_internal_error_);
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HAMT_insert(loaded_modules[type], keyword, data, &replace,
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load_module_destroy);
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}
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typedef struct {
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yasm_module_type type;
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void (*printfunc) (const char *name, const char *keyword);
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} list_one_data;
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static int
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yasm_list_one_module(void *node, void *d)
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{
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list_one_data *data = (list_one_data *)d;
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yasm_arch_module *arch;
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yasm_dbgfmt_module *dbgfmt;
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yasm_objfmt_module *objfmt;
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yasm_listfmt_module *listfmt;
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yasm_parser_module *parser;
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yasm_preproc_module *preproc;
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switch (data->type) {
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case YASM_MODULE_ARCH:
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arch = node;
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data->printfunc(arch->name, arch->keyword);
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break;
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case YASM_MODULE_DBGFMT:
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dbgfmt = node;
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data->printfunc(dbgfmt->name, dbgfmt->keyword);
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break;
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case YASM_MODULE_OBJFMT:
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objfmt = node;
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data->printfunc(objfmt->name, objfmt->keyword);
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break;
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case YASM_MODULE_LISTFMT:
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listfmt = node;
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data->printfunc(listfmt->name, listfmt->keyword);
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break;
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case YASM_MODULE_PARSER:
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parser = node;
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data->printfunc(parser->name, parser->keyword);
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break;
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case YASM_MODULE_PREPROC:
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preproc = node;
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data->printfunc(preproc->name, preproc->keyword);
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break;
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}
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return 0;
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}
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void
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yasm_list_modules(yasm_module_type type,
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void (*printfunc) (const char *name, const char *keyword))
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{
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list_one_data data;
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/* Go through available list, and try to load each one */
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if (!loaded_modules[type])
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return;
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data.type = type;
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data.printfunc = printfunc;
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HAMT_traverse(loaded_modules[type], &data, yasm_list_one_module);
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}
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