c0e157e3b2
One must build yasm (included in the yasm directory) before building GMP, if building on an x86_64 machine. Note: make test and make tune do not currently build.
164 lines
4.8 KiB
C
164 lines
4.8 KiB
C
/*
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* Raw preprocessor (preforms NO preprocessing)
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*
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* Copyright (C) 2001-2007 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: raw-preproc.c 2008 2007-11-03 04:37:44Z peter $");
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#include <libyasm.h>
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#define BSIZE 512
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typedef struct yasm_preproc_raw {
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yasm_preproc_base preproc; /* base structure */
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FILE *in;
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yasm_linemap *cur_lm;
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yasm_errwarns *errwarns;
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} yasm_preproc_raw;
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yasm_preproc_module yasm_raw_LTX_preproc;
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static yasm_preproc *
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raw_preproc_create(const char *in_filename, yasm_symtab *symtab,
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yasm_linemap *lm, yasm_errwarns *errwarns)
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{
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FILE *f;
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yasm_preproc_raw *preproc_raw = yasm_xmalloc(sizeof(yasm_preproc_raw));
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if (strcmp(in_filename, "-") != 0) {
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f = fopen(in_filename, "r");
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if (!f)
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yasm__fatal( N_("Could not open input file") );
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}
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else
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f = stdin;
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preproc_raw->preproc.module = &yasm_raw_LTX_preproc;
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preproc_raw->in = f;
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preproc_raw->cur_lm = lm;
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preproc_raw->errwarns = errwarns;
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return (yasm_preproc *)preproc_raw;
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}
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static void
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raw_preproc_destroy(yasm_preproc *preproc)
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{
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yasm_xfree(preproc);
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}
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static char *
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raw_preproc_get_line(yasm_preproc *preproc)
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{
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yasm_preproc_raw *preproc_raw = (yasm_preproc_raw *)preproc;
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int bufsize = BSIZE;
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char *buf = yasm_xmalloc((size_t)bufsize);
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char *p;
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/* Loop to ensure entire line is read (don't want to limit line length). */
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p = buf;
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for (;;) {
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if (!fgets(p, bufsize-(p-buf), preproc_raw->in)) {
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if (ferror(preproc_raw->in)) {
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yasm_error_set(YASM_ERROR_IO,
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N_("error when reading from file"));
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yasm_errwarn_propagate(preproc_raw->errwarns,
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yasm_linemap_get_current(preproc_raw->cur_lm));
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}
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break;
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}
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p += strlen(p);
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if (p > buf && p[-1] == '\n')
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break;
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if ((p-buf) >= bufsize) {
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/* Increase size of buffer */
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char *oldbuf = buf;
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bufsize *= 2;
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buf = yasm_xrealloc(buf, (size_t)bufsize);
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p = buf + (p-oldbuf);
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}
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}
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if (p == buf) {
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/* No data; must be at EOF */
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yasm_xfree(buf);
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return NULL;
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}
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/* Strip the line ending */
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buf[strcspn(buf, "\r\n")] = '\0';
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return buf;
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}
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static size_t
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raw_preproc_get_included_file(yasm_preproc *preproc, char *buf,
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size_t max_size)
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{
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/* no included files */
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return 0;
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}
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static void
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raw_preproc_add_include_file(yasm_preproc *preproc, const char *filename)
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{
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/* no pre-include files */
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}
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static void
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raw_preproc_predefine_macro(yasm_preproc *preproc, const char *macronameval)
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{
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/* no pre-defining macros */
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}
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static void
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raw_preproc_undefine_macro(yasm_preproc *preproc, const char *macroname)
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{
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/* no undefining macros */
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}
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static void
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raw_preproc_define_builtin(yasm_preproc *preproc, const char *macronameval)
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{
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/* no builtin defines */
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}
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/* Define preproc structure -- see preproc.h for details */
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yasm_preproc_module yasm_raw_LTX_preproc = {
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"Disable preprocessing",
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"raw",
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raw_preproc_create,
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raw_preproc_destroy,
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raw_preproc_get_line,
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raw_preproc_get_included_file,
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raw_preproc_add_include_file,
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raw_preproc_predefine_macro,
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raw_preproc_undefine_macro,
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raw_preproc_define_builtin
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};
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