diff options
Diffstat (limited to 'libyasm/genmodule.c')
| -rw-r--r-- | libyasm/genmodule.c | 229 |
1 files changed, 229 insertions, 0 deletions
diff --git a/libyasm/genmodule.c b/libyasm/genmodule.c new file mode 100644 index 0000000..a9be08a --- /dev/null +++ b/libyasm/genmodule.c @@ -0,0 +1,229 @@ +/* + * + * Generate module.c from module.in and Makefile.am or Makefile. + * + * Copyright (C) 2004-2007 Peter Johnson + * + * 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. + * + * 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. + */ +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <ctype.h> + +#include "compat-queue.h" + +#define MAXNAME 128 +#define MAXLINE 1024 +#define MAXMODULES 128 +#define MAXINCLUDES 256 + +typedef struct include { + STAILQ_ENTRY(include) link; + char *filename; +} include; + +int +main(int argc, char *argv[]) +{ + FILE *in, *out; + char *str; + int i; + size_t len; + char *strp; + char *modules[MAXMODULES]; + int num_modules = 0; + STAILQ_HEAD(includehead, include) includes = + STAILQ_HEAD_INITIALIZER(includes); + include *inc; + int isam = 0; + int linecont = 0; + char *outfile; + + if (argc != 4) { + fprintf(stderr, "Usage: %s <module.in> <Makefile[.am]> <outfile>\n", argv[0]); + return EXIT_FAILURE; + } + + outfile = argv[3]; + str = malloc(MAXLINE); + + /* Starting with initial input Makefile, look for include <file> or + * YASM_MODULES += <module>. Note this currently doesn't handle + * a relative starting path. + */ + len = strlen(argv[2]); + inc = malloc(sizeof(include)); + inc->filename = malloc(len+1); + strcpy(inc->filename, argv[2]); + STAILQ_INSERT_TAIL(&includes, inc, link); + + isam = argv[2][len-2] == 'a' && argv[2][len-1] == 'm'; + + while (!STAILQ_EMPTY(&includes)) { + inc = STAILQ_FIRST(&includes); + STAILQ_REMOVE_HEAD(&includes, link); + in = fopen(inc->filename, "rt"); + if (!in) { + fprintf(stderr, "Could not open `%s'.\n", inc->filename); + return EXIT_FAILURE; + } + free(inc->filename); + free(inc); + + while (fgets(str, MAXLINE, in)) { + /* Strip off any trailing whitespace */ + len = strlen(str); + if (len > 0) { + strp = &str[len-1]; + while (len > 0 && isspace(*strp)) { + *strp-- = '\0'; + len--; + } + } + + strp = str; + + /* Skip whitespace */ + while (isspace(*strp)) + strp++; + + /* Skip comments */ + if (*strp == '#') + continue; + + /* If line continuation, skip to continue copy */ + if (linecont) + goto keepgoing; + + /* Check for include if original input is .am file */ + if (isam && strncmp(strp, "include", 7) == 0 && isspace(strp[7])) { + strp += 7; + while (isspace(*strp)) + strp++; + /* Build new include and add to end of list */ + inc = malloc(sizeof(include)); + inc->filename = malloc(strlen(strp)+1); + strcpy(inc->filename, strp); + STAILQ_INSERT_TAIL(&includes, inc, link); + continue; + } + + /* Check for YASM_MODULES = or += */ + if (strncmp(strp, "YASM_MODULES", 12) != 0) + continue; + strp += 12; + while (isspace(*strp)) + strp++; + if (strncmp(strp, "+=", 2) != 0 && *strp != '=') + continue; + if (*strp == '+') + strp++; + strp++; + while (isspace(*strp)) + strp++; + +keepgoing: + /* Check for continuation */ + if (len > 0 && str[len-1] == '\\') { + str[len-1] = '\0'; + while (isspace(*strp)) + *strp-- = '\0'; + linecont = 1; + } else + linecont = 0; + + while (*strp != '\0') { + /* Copy module name */ + modules[num_modules] = malloc(MAXNAME); + len = 0; + while (*strp != '\0' && !isspace(*strp)) + modules[num_modules][len++] = *strp++; + modules[num_modules][len] = '\0'; + num_modules++; + + while (isspace(*strp)) + strp++; + } + } + fclose(in); + } + + out = fopen(outfile, "wt"); + + if (!out) { + fprintf(stderr, "Could not open `%s'.\n", outfile); + return EXIT_FAILURE; + } + + fprintf(out, "/* This file auto-generated by genmodule.c" + " - don't edit it */\n\n"); + + in = fopen(argv[1], "rt"); + if (!in) { + fprintf(stderr, "Could not open `%s'.\n", argv[1]); + fclose(out); + remove(outfile); + return EXIT_FAILURE; + } + + len = 0; + while (fgets(str, MAXLINE, in)) { + if (strncmp(str, "MODULES_", 8) == 0) { + len = 0; + strp = str+8; + while (*strp != '\0' && *strp != '_') { + len++; + strp++; + } + *strp = '\0'; + + for (i=0; i<num_modules; i++) { + if (strncmp(modules[i], str+8, len) == 0) { + fprintf(out, " {\"%s\", &yasm_%s_LTX_%s},\n", + modules[i]+len+1, modules[i]+len+1, str+8); + } + } + } else if (strncmp(str, "EXTERN_LIST", 11) == 0) { + for (i=0; i<num_modules; i++) { + strcpy(str, modules[i]); + strp = str; + while (*strp != '\0' && *strp != '_') + strp++; + *strp++ = '\0'; + + fprintf(out, "extern yasm_%s_module yasm_%s_LTX_%s;\n", + str, strp, str); + } + } else + fputs(str, out); + } + + fclose(in); + fclose(out); + + for (i=0; i<num_modules; i++) + free(modules[i]); + free(str); + + return EXIT_SUCCESS; +} |