Mercurial > hg > index.cgi
view lwasm/pass6.c @ 504:16bd8effb2f6
Update lwcc driver to actually do something useful sometimes
Make lwcc driver actually find the correct filenames for the preprocessor
and compiler.
Construct the preprocessor argument list correctly instead of assigning all
arguments to argv[0], including the trailing NULL argument.
Instruct lwasm to use the object file format.
Correct state setting for -S and -c options so they stop after the correct
phases of compilation.
author | William Astle <lost@l-w.ca> |
---|---|
date | Thu, 24 Oct 2019 22:41:04 -0600 |
parents | 58cafa61ab40 |
children |
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/* pass6.c Copyright © 2010 William Astle This file is part of LWTOOLS. LWTOOLS is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>. */ #include <stdio.h> #include <string.h> #include <lw_alloc.h> #include <lw_string.h> #include "lwasm.h" #include "instab.h" /* Finalize Pass Reduce all expressions in a final pass. Observation: Everything should reduce as far as it is going to in a single pass because all line addresses are now constant (or section-base offset) */ static int exprok_aux(lw_expr_t e, void *priv) { asmstate_t *as = priv; if (lw_expr_istype(e, lw_expr_type_int)) return 0; if (as -> output_format == OUTPUT_OBJ || as -> output_format == OUTPUT_LWMOD) { if (lw_expr_istype(e, lw_expr_type_oper)) return 0; if (lw_expr_istype(e, lw_expr_type_special) && (as -> output_format == OUTPUT_OBJ || as -> output_format == OUTPUT_LWMOD)) { int t; t = lw_expr_specint(e); if (t == lwasm_expr_secbase || t == lwasm_expr_syment || t == lwasm_expr_import) return 0; } } return 1; } static int exprok(asmstate_t *as, lw_expr_t e) { if (lw_expr_testterms(e, exprok_aux, as)) return 0; return 1; } void do_pass6(asmstate_t *as) { line_t *cl; struct line_expr_s *le; for (cl = as -> line_head; cl; cl = cl -> next) { as -> cl = cl; for (le = cl -> exprs; le; le = le -> next) { lwasm_reduce_expr(as, le -> expr); if (!exprok(as, le -> expr)) { lwasm_register_error2(as, cl, E_EXPRESSION_BAD, "%s", lw_expr_print(le -> expr)); } } } }