mirror of
https://github.com/netwide-assembler/nasm.git
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1771 lines
61 KiB
C
1771 lines
61 KiB
C
/* The Netwide Assembler main program module
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*
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* The Netwide Assembler is copyright (C) 1996 Simon Tatham and
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* Julian Hall. All rights reserved. The software is
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* redistributable under the licence given in the file "Licence"
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* distributed in the NASM archive.
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*/
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#include <stdio.h>
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#include <stdarg.h>
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#include <stdlib.h>
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#include <string.h>
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#include <ctype.h>
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#include <inttypes.h>
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#include "nasm.h"
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#include "nasmlib.h"
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#include "stdscan.h"
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#include "insns.h"
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#include "preproc.h"
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#include "parser.h"
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#include "eval.h"
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#include "assemble.h"
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#include "labels.h"
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#include "outform.h"
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#include "listing.h"
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struct forwrefinfo { /* info held on forward refs. */
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int lineno;
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int operand;
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};
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static int get_bits(char *value);
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static uint32_t get_cpu(char *cpu_str);
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static void parse_cmdline(int, char **);
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static void assemble_file(char *);
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static int getkw(char **directive, char **value);
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static void register_output_formats(void);
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static void report_error_gnu(int severity, const char *fmt, ...);
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static void report_error_vc(int severity, const char *fmt, ...);
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static void report_error_common(int severity, const char *fmt,
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va_list args);
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static int is_suppressed_warning(int severity);
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static void usage(void);
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static efunc report_error;
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static int using_debug_info, opt_verbose_info;
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int tasm_compatible_mode = FALSE;
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int pass0;
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int maxbits = 0;
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int globalrel = 0;
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static char inname[FILENAME_MAX];
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static char outname[FILENAME_MAX];
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static char listname[FILENAME_MAX];
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static int globallineno; /* for forward-reference tracking */
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/* static int pass = 0; */
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static struct ofmt *ofmt = NULL;
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static FILE *error_file; /* Where to write error messages */
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static FILE *ofile = NULL;
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int optimizing = -1; /* number of optimization passes to take */
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static int sb, cmd_sb = 16; /* by default */
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static uint32_t cmd_cpu = IF_PLEVEL; /* highest level by default */
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static uint32_t cpu = IF_PLEVEL; /* passed to insn_size & assemble.c */
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int global_offset_changed; /* referenced in labels.c */
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static loc_t location;
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int in_abs_seg; /* Flag we are in ABSOLUTE seg */
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int32_t abs_seg; /* ABSOLUTE segment basis */
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int32_t abs_offset; /* ABSOLUTE offset */
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static struct RAA *offsets;
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static struct SAA *forwrefs; /* keep track of forward references */
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static struct forwrefinfo *forwref;
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static Preproc *preproc;
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enum op_type {
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op_normal, /* Preprocess and assemble */
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op_preprocess, /* Preprocess only */
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op_depend, /* Generate dependencies */
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op_depend_missing_ok, /* Generate dependencies, missing OK */
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};
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static enum op_type operating_mode;
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/*
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* Which of the suppressible warnings are suppressed. Entry zero
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* doesn't do anything. Initial defaults are given here.
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*/
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static char suppressed[1 + ERR_WARN_MAX] = {
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0, TRUE, TRUE, TRUE, FALSE, TRUE
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};
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/*
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* The option names for the suppressible warnings. As before, entry
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* zero does nothing.
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*/
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static const char *suppressed_names[1 + ERR_WARN_MAX] = {
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NULL, "macro-params", "macro-selfref", "orphan-labels",
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"number-overflow",
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"gnu-elf-extensions"
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};
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/*
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* The explanations for the suppressible warnings. As before, entry
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* zero does nothing.
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*/
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static const char *suppressed_what[1 + ERR_WARN_MAX] = {
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NULL,
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"macro calls with wrong no. of params",
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"cyclic macro self-references",
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"labels alone on lines without trailing `:'",
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"numeric constants greater than 0xFFFFFFFF",
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"using 8- or 16-bit relocation in ELF, a GNU extension"
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};
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/*
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* This is a null preprocessor which just copies lines from input
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* to output. It's used when someone explicitly requests that NASM
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* not preprocess their source file.
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*/
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static void no_pp_reset(char *, int, efunc, evalfunc, ListGen *);
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static char *no_pp_getline(void);
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static void no_pp_cleanup(int);
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static Preproc no_pp = {
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no_pp_reset,
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no_pp_getline,
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no_pp_cleanup
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};
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/*
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* get/set current offset...
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*/
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#define GET_CURR_OFFS (in_abs_seg?abs_offset:\
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raa_read(offsets,location.segment))
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#define SET_CURR_OFFS(x) (in_abs_seg?(void)(abs_offset=(x)):\
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(void)(offsets=raa_write(offsets,location.segment,(x))))
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static int want_usage;
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static int terminate_after_phase;
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int user_nolist = 0; /* fbk 9/2/00 */
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static void nasm_fputs(const char *line, FILE * outfile)
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{
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if (outfile) {
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fputs(line, outfile);
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fputc('\n', outfile);
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} else
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puts(line);
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}
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int main(int argc, char **argv)
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{
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pass0 = 1;
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want_usage = terminate_after_phase = FALSE;
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report_error = report_error_gnu;
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error_file = stderr;
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nasm_set_malloc_error(report_error);
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offsets = raa_init();
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forwrefs = saa_init((int32_t)sizeof(struct forwrefinfo));
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preproc = &nasmpp;
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operating_mode = op_normal;
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seg_init();
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register_output_formats();
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parse_cmdline(argc, argv);
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if (terminate_after_phase) {
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if (want_usage)
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usage();
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return 1;
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}
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/* If debugging info is disabled, suppress any debug calls */
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if (!using_debug_info)
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ofmt->current_dfmt = &null_debug_form;
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if (ofmt->stdmac)
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pp_extra_stdmac(ofmt->stdmac);
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parser_global_info(ofmt, &location);
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eval_global_info(ofmt, lookup_label, &location);
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/* define some macros dependent of command-line */
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{
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char temp[64];
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snprintf(temp, sizeof(temp), "__OUTPUT_FORMAT__=%s\n",
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ofmt->shortname);
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pp_pre_define(temp);
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}
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switch (operating_mode) {
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case op_depend_missing_ok:
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pp_include_path(NULL); /* "assume generated" */
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/* fall through */
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case op_depend:
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{
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char *line;
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preproc->reset(inname, 0, report_error, evaluate, &nasmlist);
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if (outname[0] == '\0')
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ofmt->filename(inname, outname, report_error);
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ofile = NULL;
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fprintf(stdout, "%s: %s", outname, inname);
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while ((line = preproc->getline()))
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nasm_free(line);
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preproc->cleanup(0);
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putc('\n', stdout);
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}
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break;
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case op_preprocess:
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{
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char *line;
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char *file_name = NULL;
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int32_t prior_linnum = 0;
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int lineinc = 0;
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if (*outname) {
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ofile = fopen(outname, "w");
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if (!ofile)
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report_error(ERR_FATAL | ERR_NOFILE,
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"unable to open output file `%s'",
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outname);
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} else
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ofile = NULL;
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location.known = FALSE;
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/* pass = 1; */
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preproc->reset(inname, 2, report_error, evaluate, &nasmlist);
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while ((line = preproc->getline())) {
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/*
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* We generate %line directives if needed for later programs
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*/
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int32_t linnum = prior_linnum += lineinc;
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int altline = src_get(&linnum, &file_name);
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if (altline) {
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if (altline == 1 && lineinc == 1)
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nasm_fputs("", ofile);
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else {
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lineinc = (altline != -1 || lineinc != 1);
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fprintf(ofile ? ofile : stdout,
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"%%line %"PRId32"+%d %s\n", linnum, lineinc,
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file_name);
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}
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prior_linnum = linnum;
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}
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nasm_fputs(line, ofile);
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nasm_free(line);
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}
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nasm_free(file_name);
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preproc->cleanup(0);
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if (ofile)
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fclose(ofile);
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if (ofile && terminate_after_phase)
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remove(outname);
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}
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break;
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case op_normal:
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{
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/*
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* We must call ofmt->filename _anyway_, even if the user
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* has specified their own output file, because some
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* formats (eg OBJ and COFF) use ofmt->filename to find out
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* the name of the input file and then put that inside the
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* file.
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*/
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ofmt->filename(inname, outname, report_error);
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ofile = fopen(outname, "wb");
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if (!ofile) {
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report_error(ERR_FATAL | ERR_NOFILE,
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"unable to open output file `%s'", outname);
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}
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/*
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* We must call init_labels() before ofmt->init() since
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* some object formats will want to define labels in their
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* init routines. (eg OS/2 defines the FLAT group)
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*/
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init_labels();
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ofmt->init(ofile, report_error, define_label, evaluate);
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assemble_file(inname);
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if (!terminate_after_phase) {
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ofmt->cleanup(using_debug_info);
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cleanup_labels();
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} else {
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/*
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* We had an fclose on the output file here, but we
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* actually do that in all the object file drivers as well,
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* so we're leaving out the one here.
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* fclose (ofile);
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*/
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remove(outname);
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if (listname[0])
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remove(listname);
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}
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}
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break;
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}
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if (want_usage)
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usage();
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raa_free(offsets);
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saa_free(forwrefs);
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eval_cleanup();
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stdscan_cleanup();
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if (terminate_after_phase)
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return 1;
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else
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return 0;
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}
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/*
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* Get a parameter for a command line option.
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* First arg must be in the form of e.g. -f...
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*/
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static char *get_param(char *p, char *q, int *advance)
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{
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*advance = 0;
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if (p[2]) { /* the parameter's in the option */
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p += 2;
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while (isspace(*p))
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p++;
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return p;
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}
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if (q && q[0]) {
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*advance = 1;
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return q;
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}
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report_error(ERR_NONFATAL | ERR_NOFILE | ERR_USAGE,
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"option `-%c' requires an argument", p[1]);
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return NULL;
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}
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struct textargs {
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const char *label;
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int value;
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};
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#define OPT_PREFIX 0
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#define OPT_POSTFIX 1
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struct textargs textopts[] = {
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{"prefix", OPT_PREFIX},
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{"postfix", OPT_POSTFIX},
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{NULL, 0}
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};
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int stopoptions = 0;
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static int process_arg(char *p, char *q)
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{
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char *param;
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int i, advance = 0;
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if (!p || !p[0])
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return 0;
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if (p[0] == '-' && !stopoptions) {
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switch (p[1]) {
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case 's':
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error_file = stdout;
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break;
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case 'o': /* these parameters take values */
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case 'O':
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case 'f':
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case 'p':
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case 'P':
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case 'd':
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case 'D':
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case 'i':
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case 'I':
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case 'l':
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case 'F':
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case 'X':
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case 'u':
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case 'U':
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case 'Z':
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if (!(param = get_param(p, q, &advance)))
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break;
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if (p[1] == 'o') { /* output file */
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strcpy(outname, param);
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} else if (p[1] == 'f') { /* output format */
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ofmt = ofmt_find(param);
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if (!ofmt) {
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report_error(ERR_FATAL | ERR_NOFILE | ERR_USAGE,
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"unrecognised output format `%s' - "
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"use -hf for a list", param);
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} else
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ofmt->current_dfmt = ofmt->debug_formats[0];
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} else if (p[1] == 'O') { /* Optimization level */
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int opt;
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opt = -99;
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while (*param) {
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if (isdigit(*param)) {
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opt = atoi(param);
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while (isdigit(*++param)) ;
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if (opt <= 0)
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optimizing = -1; /* 0.98 behaviour */
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else if (opt == 1)
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optimizing = 0; /* Two passes, 0.98.09 behavior */
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else if (opt <= 5)
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/* The optimizer seems to have problems with
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< 5 passes? Hidden bug? */
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optimizing = 5; /* 5 passes */
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else
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optimizing = opt; /* More than 5 passes */
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} else {
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if (*param == 'v' || *param == '+') {
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++param;
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opt_verbose_info = TRUE;
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opt = 0;
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} else { /* garbage */
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opt = -99;
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break;
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}
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}
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} /* while (*param) */
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if (opt == -99)
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report_error(ERR_FATAL,
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"command line optimization level must be 'v', 0..3 or <nn>");
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} else if (p[1] == 'P' || p[1] == 'p') { /* pre-include */
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pp_pre_include(param);
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} else if (p[1] == 'D' || p[1] == 'd') { /* pre-define */
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pp_pre_define(param);
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} else if (p[1] == 'U' || p[1] == 'u') { /* un-define */
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pp_pre_undefine(param);
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} else if (p[1] == 'I' || p[1] == 'i') { /* include search path */
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pp_include_path(param);
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} else if (p[1] == 'l') { /* listing file */
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strcpy(listname, param);
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} else if (p[1] == 'Z') { /* error messages file */
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error_file = fopen(param, "w");
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if (!error_file) {
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error_file = stderr; /* Revert to default! */
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report_error(ERR_FATAL | ERR_NOFILE | ERR_USAGE,
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"cannot open file `%s' for error messages",
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param);
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}
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} else if (p[1] == 'F') { /* specify debug format */
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ofmt->current_dfmt = dfmt_find(ofmt, param);
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if (!ofmt->current_dfmt) {
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report_error(ERR_FATAL | ERR_NOFILE | ERR_USAGE,
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"unrecognized debug format `%s' for"
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" output format `%s'",
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param, ofmt->shortname);
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}
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} else if (p[1] == 'X') { /* specify error reporting format */
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if (nasm_stricmp("vc", param) == 0)
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report_error = report_error_vc;
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else if (nasm_stricmp("gnu", param) == 0)
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report_error = report_error_gnu;
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else
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report_error(ERR_FATAL | ERR_NOFILE | ERR_USAGE,
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"unrecognized error reporting format `%s'",
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param);
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}
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break;
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case 'g':
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using_debug_info = TRUE;
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break;
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case 'h':
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printf
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("usage: nasm [-@ response file] [-o outfile] [-f format] "
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"[-l listfile]\n"
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" [options...] [--] filename\n"
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" or nasm -v for version info\n\n"
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" -t assemble in SciTech TASM compatible mode\n"
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" -g generate debug information in selected format.\n");
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printf
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(" -E (or -e) preprocess only (writes output to stdout by default)\n"
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" -a don't preprocess (assemble only)\n"
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" -M generate Makefile dependencies on stdout\n"
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" -MG d:o, missing files assumed generated\n\n"
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" -Z<file> redirect error messages to file\n"
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" -s redirect error messages to stdout\n\n"
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" -F format select a debugging format\n\n"
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" -I<path> adds a pathname to the include file path\n");
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printf
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(" -O<digit> optimize branch offsets (-O0 disables, default)\n"
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" -P<file> pre-includes a file\n"
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" -D<macro>[=<value>] pre-defines a macro\n"
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" -U<macro> undefines a macro\n"
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" -X<format> specifies error reporting format (gnu or vc)\n"
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" -w+foo enables warnings about foo; -w-foo disables them\n"
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"where foo can be:\n");
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for (i = 1; i <= ERR_WARN_MAX; i++)
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printf(" %-23s %s (default %s)\n",
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suppressed_names[i], suppressed_what[i],
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suppressed[i] ? "off" : "on");
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printf
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("\nresponse files should contain command line parameters"
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", one per line.\n");
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if (p[2] == 'f') {
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printf("\nvalid output formats for -f are"
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" (`*' denotes default):\n");
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ofmt_list(ofmt, stdout);
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} else {
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printf("\nFor a list of valid output formats, use -hf.\n");
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printf("For a list of debug formats, use -f <form> -y.\n");
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}
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exit(0); /* never need usage message here */
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break;
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case 'y':
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printf("\nvalid debug formats for '%s' output format are"
|
|
" ('*' denotes default):\n", ofmt->shortname);
|
|
dfmt_list(ofmt, stdout);
|
|
exit(0);
|
|
break;
|
|
case 't':
|
|
tasm_compatible_mode = TRUE;
|
|
break;
|
|
case 'v':
|
|
{
|
|
const char *nasm_version_string =
|
|
"NASM version " NASM_VER " compiled on " __DATE__
|
|
#ifdef DEBUG
|
|
" with -DDEBUG"
|
|
#endif
|
|
;
|
|
puts(nasm_version_string);
|
|
exit(0); /* never need usage message here */
|
|
}
|
|
break;
|
|
case 'e': /* preprocess only */
|
|
case 'E':
|
|
operating_mode = op_preprocess;
|
|
break;
|
|
case 'a': /* assemble only - don't preprocess */
|
|
preproc = &no_pp;
|
|
break;
|
|
case 'w':
|
|
if (p[2] != '+' && p[2] != '-') {
|
|
report_error(ERR_NONFATAL | ERR_NOFILE | ERR_USAGE,
|
|
"invalid option to `-w'");
|
|
} else {
|
|
for (i = 1; i <= ERR_WARN_MAX; i++)
|
|
if (!nasm_stricmp(p + 3, suppressed_names[i]))
|
|
break;
|
|
if (i <= ERR_WARN_MAX)
|
|
suppressed[i] = (p[2] == '-');
|
|
else
|
|
report_error(ERR_NONFATAL | ERR_NOFILE | ERR_USAGE,
|
|
"invalid option to `-w'");
|
|
}
|
|
break;
|
|
case 'M':
|
|
operating_mode = p[2] == 'G' ? op_depend_missing_ok : op_depend;
|
|
break;
|
|
|
|
case '-':
|
|
{
|
|
int s;
|
|
|
|
if (p[2] == 0) { /* -- => stop processing options */
|
|
stopoptions = 1;
|
|
break;
|
|
}
|
|
for (s = 0; textopts[s].label; s++) {
|
|
if (!nasm_stricmp(p + 2, textopts[s].label)) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
switch (s) {
|
|
|
|
case OPT_PREFIX:
|
|
case OPT_POSTFIX:
|
|
{
|
|
if (!q) {
|
|
report_error(ERR_NONFATAL | ERR_NOFILE |
|
|
ERR_USAGE,
|
|
"option `--%s' requires an argument",
|
|
p + 2);
|
|
break;
|
|
} else {
|
|
advance = 1, param = q;
|
|
}
|
|
|
|
if (s == OPT_PREFIX) {
|
|
strncpy(lprefix, param, PREFIX_MAX - 1);
|
|
lprefix[PREFIX_MAX - 1] = 0;
|
|
break;
|
|
}
|
|
if (s == OPT_POSTFIX) {
|
|
strncpy(lpostfix, param, POSTFIX_MAX - 1);
|
|
lpostfix[POSTFIX_MAX - 1] = 0;
|
|
break;
|
|
}
|
|
break;
|
|
}
|
|
default:
|
|
{
|
|
report_error(ERR_NONFATAL | ERR_NOFILE | ERR_USAGE,
|
|
"unrecognised option `--%s'", p + 2);
|
|
break;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
|
|
default:
|
|
if (!ofmt->setinfo(GI_SWITCH, &p))
|
|
report_error(ERR_NONFATAL | ERR_NOFILE | ERR_USAGE,
|
|
"unrecognised option `-%c'", p[1]);
|
|
break;
|
|
}
|
|
} else {
|
|
if (*inname) {
|
|
report_error(ERR_NONFATAL | ERR_NOFILE | ERR_USAGE,
|
|
"more than one input file specified");
|
|
} else
|
|
strcpy(inname, p);
|
|
}
|
|
|
|
return advance;
|
|
}
|
|
|
|
#define ARG_BUF_DELTA 128
|
|
|
|
static void process_respfile(FILE * rfile)
|
|
{
|
|
char *buffer, *p, *q, *prevarg;
|
|
int bufsize, prevargsize;
|
|
|
|
bufsize = prevargsize = ARG_BUF_DELTA;
|
|
buffer = nasm_malloc(ARG_BUF_DELTA);
|
|
prevarg = nasm_malloc(ARG_BUF_DELTA);
|
|
prevarg[0] = '\0';
|
|
|
|
while (1) { /* Loop to handle all lines in file */
|
|
|
|
p = buffer;
|
|
while (1) { /* Loop to handle long lines */
|
|
q = fgets(p, bufsize - (p - buffer), rfile);
|
|
if (!q)
|
|
break;
|
|
p += strlen(p);
|
|
if (p > buffer && p[-1] == '\n')
|
|
break;
|
|
if (p - buffer > bufsize - 10) {
|
|
int offset;
|
|
offset = p - buffer;
|
|
bufsize += ARG_BUF_DELTA;
|
|
buffer = nasm_realloc(buffer, bufsize);
|
|
p = buffer + offset;
|
|
}
|
|
}
|
|
|
|
if (!q && p == buffer) {
|
|
if (prevarg[0])
|
|
process_arg(prevarg, NULL);
|
|
nasm_free(buffer);
|
|
nasm_free(prevarg);
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* Play safe: remove CRs, LFs and any spurious ^Zs, if any of
|
|
* them are present at the end of the line.
|
|
*/
|
|
*(p = &buffer[strcspn(buffer, "\r\n\032")]) = '\0';
|
|
|
|
while (p > buffer && isspace(p[-1]))
|
|
*--p = '\0';
|
|
|
|
p = buffer;
|
|
while (isspace(*p))
|
|
p++;
|
|
|
|
if (process_arg(prevarg, p))
|
|
*p = '\0';
|
|
|
|
if (strlen(p) > prevargsize - 10) {
|
|
prevargsize += ARG_BUF_DELTA;
|
|
prevarg = nasm_realloc(prevarg, prevargsize);
|
|
}
|
|
strcpy(prevarg, p);
|
|
}
|
|
}
|
|
|
|
/* Function to process args from a string of args, rather than the
|
|
* argv array. Used by the environment variable and response file
|
|
* processing.
|
|
*/
|
|
static void process_args(char *args)
|
|
{
|
|
char *p, *q, *arg, *prevarg;
|
|
char separator = ' ';
|
|
|
|
p = args;
|
|
if (*p && *p != '-')
|
|
separator = *p++;
|
|
arg = NULL;
|
|
while (*p) {
|
|
q = p;
|
|
while (*p && *p != separator)
|
|
p++;
|
|
while (*p == separator)
|
|
*p++ = '\0';
|
|
prevarg = arg;
|
|
arg = q;
|
|
if (process_arg(prevarg, arg))
|
|
arg = NULL;
|
|
}
|
|
if (arg)
|
|
process_arg(arg, NULL);
|
|
}
|
|
|
|
static void parse_cmdline(int argc, char **argv)
|
|
{
|
|
FILE *rfile;
|
|
char *envreal, *envcopy = NULL, *p, *arg;
|
|
|
|
*inname = *outname = *listname = '\0';
|
|
|
|
/*
|
|
* First, process the NASMENV environment variable.
|
|
*/
|
|
envreal = getenv("NASMENV");
|
|
arg = NULL;
|
|
if (envreal) {
|
|
envcopy = nasm_strdup(envreal);
|
|
process_args(envcopy);
|
|
nasm_free(envcopy);
|
|
}
|
|
|
|
/*
|
|
* Now process the actual command line.
|
|
*/
|
|
while (--argc) {
|
|
int i;
|
|
argv++;
|
|
if (argv[0][0] == '@') {
|
|
/* We have a response file, so process this as a set of
|
|
* arguments like the environment variable. This allows us
|
|
* to have multiple arguments on a single line, which is
|
|
* different to the -@resp file processing below for regular
|
|
* NASM.
|
|
*/
|
|
char *str = malloc(2048);
|
|
FILE *f = fopen(&argv[0][1], "r");
|
|
if (!str) {
|
|
printf("out of memory");
|
|
exit(-1);
|
|
}
|
|
if (f) {
|
|
while (fgets(str, 2048, f)) {
|
|
process_args(str);
|
|
}
|
|
fclose(f);
|
|
}
|
|
free(str);
|
|
argc--;
|
|
argv++;
|
|
}
|
|
if (!stopoptions && argv[0][0] == '-' && argv[0][1] == '@') {
|
|
p = get_param(argv[0], argc > 1 ? argv[1] : NULL, &i);
|
|
if (p) {
|
|
rfile = fopen(p, "r");
|
|
if (rfile) {
|
|
process_respfile(rfile);
|
|
fclose(rfile);
|
|
} else
|
|
report_error(ERR_NONFATAL | ERR_NOFILE | ERR_USAGE,
|
|
"unable to open response file `%s'", p);
|
|
}
|
|
} else
|
|
i = process_arg(argv[0], argc > 1 ? argv[1] : NULL);
|
|
argv += i, argc -= i;
|
|
}
|
|
|
|
if (!*inname)
|
|
report_error(ERR_NONFATAL | ERR_NOFILE | ERR_USAGE,
|
|
"no input file specified");
|
|
}
|
|
|
|
/* List of directives */
|
|
enum {
|
|
D_NONE, D_ABSOLUTE, D_BITS, D_COMMON, D_CPU, D_DEBUG, D_DEFAULT,
|
|
D_EXTERN, D_GLOBAL, D_LIST, D_SECTION, D_SEGMENT, D_WARNING
|
|
};
|
|
static const char *directives[] = {
|
|
"", "absolute", "bits", "common", "cpu", "debug", "default",
|
|
"extern", "global", "list", "section", "segment", "warning"
|
|
};
|
|
|
|
static void assemble_file(char *fname)
|
|
{
|
|
char *directive, *value, *p, *q, *special, *line, debugid[80];
|
|
insn output_ins;
|
|
int i, rn_error, validid;
|
|
int32_t seg, offs;
|
|
struct tokenval tokval;
|
|
expr *e;
|
|
int pass, pass_max;
|
|
int pass_cnt = 0; /* count actual passes */
|
|
|
|
if (cmd_sb == 32 && cmd_cpu < IF_386)
|
|
report_error(ERR_FATAL, "command line: "
|
|
"32-bit segment size requires a higher cpu");
|
|
|
|
pass_max = (optimizing > 0 ? optimizing : 0) + 2; /* passes 1, optimizing, then 2 */
|
|
pass0 = !(optimizing > 0); /* start at 1 if not optimizing */
|
|
for (pass = 1; pass <= pass_max && pass0 <= 2; pass++) {
|
|
int pass1, pass2;
|
|
ldfunc def_label;
|
|
|
|
pass1 = pass < pass_max ? 1 : 2; /* seq is 1, 1, 1,..., 1, 2 */
|
|
pass2 = pass > 1 ? 2 : 1; /* seq is 1, 2, 2,..., 2, 2 */
|
|
/* pass0 seq is 0, 0, 0,..., 1, 2 */
|
|
|
|
def_label = pass > 1 ? redefine_label : define_label;
|
|
|
|
globalbits = sb = cmd_sb; /* set 'bits' to command line default */
|
|
cpu = cmd_cpu;
|
|
if (pass0 == 2) {
|
|
if (*listname)
|
|
nasmlist.init(listname, report_error);
|
|
}
|
|
in_abs_seg = FALSE;
|
|
global_offset_changed = FALSE; /* set by redefine_label */
|
|
location.segment = ofmt->section(NULL, pass2, &sb);
|
|
globalbits = sb;
|
|
if (pass > 1) {
|
|
saa_rewind(forwrefs);
|
|
forwref = saa_rstruct(forwrefs);
|
|
raa_free(offsets);
|
|
offsets = raa_init();
|
|
}
|
|
preproc->reset(fname, pass1, report_error, evaluate, &nasmlist);
|
|
globallineno = 0;
|
|
if (pass == 1)
|
|
location.known = TRUE;
|
|
location.offset = offs = GET_CURR_OFFS;
|
|
|
|
while ((line = preproc->getline())) {
|
|
globallineno++;
|
|
|
|
/* here we parse our directives; this is not handled by the 'real'
|
|
* parser. */
|
|
directive = line;
|
|
i = getkw(&directive, &value);
|
|
if (i) {
|
|
int err = 0;
|
|
|
|
switch (i) {
|
|
case D_SEGMENT: /* [SEGMENT n] */
|
|
case D_SECTION:
|
|
seg = ofmt->section(value, pass2, &sb);
|
|
if (seg == NO_SEG) {
|
|
report_error(pass1 == 1 ? ERR_NONFATAL : ERR_PANIC,
|
|
"segment name `%s' not recognized",
|
|
value);
|
|
} else {
|
|
in_abs_seg = FALSE;
|
|
location.segment = seg;
|
|
}
|
|
break;
|
|
case D_EXTERN: /* [EXTERN label:special] */
|
|
if (*value == '$')
|
|
value++; /* skip initial $ if present */
|
|
if (pass0 == 2) {
|
|
q = value;
|
|
while (*q && *q != ':')
|
|
q++;
|
|
if (*q == ':') {
|
|
*q++ = '\0';
|
|
ofmt->symdef(value, 0L, 0L, 3, q);
|
|
}
|
|
} else if (pass == 1) { /* pass == 1 */
|
|
q = value;
|
|
validid = TRUE;
|
|
if (!isidstart(*q))
|
|
validid = FALSE;
|
|
while (*q && *q != ':') {
|
|
if (!isidchar(*q))
|
|
validid = FALSE;
|
|
q++;
|
|
}
|
|
if (!validid) {
|
|
report_error(ERR_NONFATAL,
|
|
"identifier expected after EXTERN");
|
|
break;
|
|
}
|
|
if (*q == ':') {
|
|
*q++ = '\0';
|
|
special = q;
|
|
} else
|
|
special = NULL;
|
|
if (!is_extern(value)) { /* allow re-EXTERN to be ignored */
|
|
int temp = pass0;
|
|
pass0 = 1; /* fake pass 1 in labels.c */
|
|
declare_as_global(value, special,
|
|
report_error);
|
|
define_label(value, seg_alloc(), 0L, NULL,
|
|
FALSE, TRUE, ofmt, report_error);
|
|
pass0 = temp;
|
|
}
|
|
} /* else pass0 == 1 */
|
|
break;
|
|
case D_BITS: /* [BITS bits] */
|
|
globalbits = sb = get_bits(value);
|
|
break;
|
|
case D_GLOBAL: /* [GLOBAL symbol:special] */
|
|
if (*value == '$')
|
|
value++; /* skip initial $ if present */
|
|
if (pass0 == 2) { /* pass 2 */
|
|
q = value;
|
|
while (*q && *q != ':')
|
|
q++;
|
|
if (*q == ':') {
|
|
*q++ = '\0';
|
|
ofmt->symdef(value, 0L, 0L, 3, q);
|
|
}
|
|
} else if (pass2 == 1) { /* pass == 1 */
|
|
q = value;
|
|
validid = TRUE;
|
|
if (!isidstart(*q))
|
|
validid = FALSE;
|
|
while (*q && *q != ':') {
|
|
if (!isidchar(*q))
|
|
validid = FALSE;
|
|
q++;
|
|
}
|
|
if (!validid) {
|
|
report_error(ERR_NONFATAL,
|
|
"identifier expected after GLOBAL");
|
|
break;
|
|
}
|
|
if (*q == ':') {
|
|
*q++ = '\0';
|
|
special = q;
|
|
} else
|
|
special = NULL;
|
|
declare_as_global(value, special, report_error);
|
|
} /* pass == 1 */
|
|
break;
|
|
case D_COMMON: /* [COMMON symbol size:special] */
|
|
if (*value == '$')
|
|
value++; /* skip initial $ if present */
|
|
if (pass0 == 1) {
|
|
p = value;
|
|
validid = TRUE;
|
|
if (!isidstart(*p))
|
|
validid = FALSE;
|
|
while (*p && !isspace(*p)) {
|
|
if (!isidchar(*p))
|
|
validid = FALSE;
|
|
p++;
|
|
}
|
|
if (!validid) {
|
|
report_error(ERR_NONFATAL,
|
|
"identifier expected after COMMON");
|
|
break;
|
|
}
|
|
if (*p) {
|
|
int64_t size;
|
|
|
|
while (*p && isspace(*p))
|
|
*p++ = '\0';
|
|
q = p;
|
|
while (*q && *q != ':')
|
|
q++;
|
|
if (*q == ':') {
|
|
*q++ = '\0';
|
|
special = q;
|
|
} else
|
|
special = NULL;
|
|
size = readnum(p, &rn_error);
|
|
if (rn_error)
|
|
report_error(ERR_NONFATAL,
|
|
"invalid size specified"
|
|
" in COMMON declaration");
|
|
else
|
|
define_common(value, seg_alloc(), size,
|
|
special, ofmt, report_error);
|
|
} else
|
|
report_error(ERR_NONFATAL,
|
|
"no size specified in"
|
|
" COMMON declaration");
|
|
} else if (pass0 == 2) { /* pass == 2 */
|
|
q = value;
|
|
while (*q && *q != ':') {
|
|
if (isspace(*q))
|
|
*q = '\0';
|
|
q++;
|
|
}
|
|
if (*q == ':') {
|
|
*q++ = '\0';
|
|
ofmt->symdef(value, 0L, 0L, 3, q);
|
|
}
|
|
}
|
|
break;
|
|
case D_ABSOLUTE: /* [ABSOLUTE address] */
|
|
stdscan_reset();
|
|
stdscan_bufptr = value;
|
|
tokval.t_type = TOKEN_INVALID;
|
|
e = evaluate(stdscan, NULL, &tokval, NULL, pass2,
|
|
report_error, NULL);
|
|
if (e) {
|
|
if (!is_reloc(e))
|
|
report_error(pass0 ==
|
|
1 ? ERR_NONFATAL : ERR_PANIC,
|
|
"cannot use non-relocatable expression as "
|
|
"ABSOLUTE address");
|
|
else {
|
|
abs_seg = reloc_seg(e);
|
|
abs_offset = reloc_value(e);
|
|
}
|
|
} else if (pass == 1)
|
|
abs_offset = 0x100; /* don't go near zero in case of / */
|
|
else
|
|
report_error(ERR_PANIC, "invalid ABSOLUTE address "
|
|
"in pass two");
|
|
in_abs_seg = TRUE;
|
|
location.segment = NO_SEG;
|
|
break;
|
|
case D_DEBUG: /* [DEBUG] */
|
|
p = value;
|
|
q = debugid;
|
|
validid = TRUE;
|
|
if (!isidstart(*p))
|
|
validid = FALSE;
|
|
while (*p && !isspace(*p)) {
|
|
if (!isidchar(*p))
|
|
validid = FALSE;
|
|
*q++ = *p++;
|
|
}
|
|
*q++ = 0;
|
|
if (!validid) {
|
|
report_error(pass == 1 ? ERR_NONFATAL : ERR_PANIC,
|
|
"identifier expected after DEBUG");
|
|
break;
|
|
}
|
|
while (*p && isspace(*p))
|
|
p++;
|
|
if (pass == pass_max)
|
|
ofmt->current_dfmt->debug_directive(debugid, p);
|
|
break;
|
|
case D_WARNING: /* [WARNING {+|-}warn-name] */
|
|
if (pass1 == 1) {
|
|
while (*value && isspace(*value))
|
|
value++;
|
|
|
|
if (*value == '+' || *value == '-') {
|
|
validid = (*value == '-') ? TRUE : FALSE;
|
|
value++;
|
|
} else
|
|
validid = FALSE;
|
|
|
|
for (i = 1; i <= ERR_WARN_MAX; i++)
|
|
if (!nasm_stricmp(value, suppressed_names[i]))
|
|
break;
|
|
if (i <= ERR_WARN_MAX)
|
|
suppressed[i] = validid;
|
|
else
|
|
report_error(ERR_NONFATAL,
|
|
"invalid warning id in WARNING directive");
|
|
}
|
|
break;
|
|
case D_CPU: /* [CPU] */
|
|
cpu = get_cpu(value);
|
|
break;
|
|
case D_LIST: /* [LIST {+|-}] */
|
|
while (*value && isspace(*value))
|
|
value++;
|
|
|
|
if (*value == '+') {
|
|
user_nolist = 0;
|
|
} else {
|
|
if (*value == '-') {
|
|
user_nolist = 1;
|
|
} else {
|
|
err = 1;
|
|
}
|
|
}
|
|
break;
|
|
case D_DEFAULT: /* [DEFAULT] */
|
|
stdscan_reset();
|
|
stdscan_bufptr = value;
|
|
tokval.t_type = TOKEN_INVALID;
|
|
if (stdscan(NULL, &tokval) == TOKEN_SPECIAL) {
|
|
switch ((int)tokval.t_integer) {
|
|
case S_REL:
|
|
globalrel = 1;
|
|
break;
|
|
case S_ABS:
|
|
globalrel = 0;
|
|
break;
|
|
default:
|
|
err = 1;
|
|
break;
|
|
}
|
|
} else {
|
|
err = 1;
|
|
}
|
|
break;
|
|
default:
|
|
if (!ofmt->directive(directive, value, pass2))
|
|
report_error(pass1 == 1 ? ERR_NONFATAL : ERR_PANIC,
|
|
"unrecognised directive [%s]",
|
|
directive);
|
|
}
|
|
if (err) {
|
|
report_error(ERR_NONFATAL,
|
|
"invalid parameter to [%s] directive",
|
|
directive);
|
|
}
|
|
} else { /* it isn't a directive */
|
|
|
|
parse_line(pass1, line, &output_ins,
|
|
report_error, evaluate, def_label);
|
|
|
|
if (!(optimizing > 0) && pass == 2) {
|
|
if (forwref != NULL && globallineno == forwref->lineno) {
|
|
output_ins.forw_ref = TRUE;
|
|
do {
|
|
output_ins.oprs[forwref->operand].opflags |=
|
|
OPFLAG_FORWARD;
|
|
forwref = saa_rstruct(forwrefs);
|
|
} while (forwref != NULL
|
|
&& forwref->lineno == globallineno);
|
|
} else
|
|
output_ins.forw_ref = FALSE;
|
|
}
|
|
|
|
if (!(optimizing > 0) && output_ins.forw_ref) {
|
|
if (pass == 1) {
|
|
for (i = 0; i < output_ins.operands; i++) {
|
|
if (output_ins.oprs[i].
|
|
opflags & OPFLAG_FORWARD) {
|
|
struct forwrefinfo *fwinf =
|
|
(struct forwrefinfo *)
|
|
saa_wstruct(forwrefs);
|
|
fwinf->lineno = globallineno;
|
|
fwinf->operand = i;
|
|
}
|
|
}
|
|
} else { /* pass == 2 */
|
|
/*
|
|
* Hack to prevent phase error in the code
|
|
* rol ax,x
|
|
* x equ 1
|
|
*
|
|
* If the second operand is a forward reference,
|
|
* the UNITY property of the number 1 in that
|
|
* operand is cancelled. Otherwise the above
|
|
* sequence will cause a phase error.
|
|
*
|
|
* This hack means that the above code will
|
|
* generate 286+ code.
|
|
*
|
|
* The forward reference will mean that the
|
|
* operand will not have the UNITY property on
|
|
* the first pass, so the pass behaviours will
|
|
* be consistent.
|
|
*/
|
|
|
|
if (output_ins.operands >= 2 &&
|
|
(output_ins.oprs[1].opflags & OPFLAG_FORWARD) &&
|
|
!(IMMEDIATE & ~output_ins.oprs[1].type))
|
|
{
|
|
/* Remove special properties bits */
|
|
output_ins.oprs[1].type &= ~REG_SMASK;
|
|
}
|
|
|
|
} /* pass == 2 */
|
|
|
|
}
|
|
|
|
/* forw_ref */
|
|
if (output_ins.opcode == I_EQU) {
|
|
if (pass1 == 1) {
|
|
/*
|
|
* Special `..' EQUs get processed in pass two,
|
|
* except `..@' macro-processor EQUs which are done
|
|
* in the normal place.
|
|
*/
|
|
if (!output_ins.label)
|
|
report_error(ERR_NONFATAL,
|
|
"EQU not preceded by label");
|
|
|
|
else if (output_ins.label[0] != '.' ||
|
|
output_ins.label[1] != '.' ||
|
|
output_ins.label[2] == '@') {
|
|
if (output_ins.operands == 1 &&
|
|
(output_ins.oprs[0].type & IMMEDIATE) &&
|
|
output_ins.oprs[0].wrt == NO_SEG) {
|
|
int isext =
|
|
output_ins.oprs[0].
|
|
opflags & OPFLAG_EXTERN;
|
|
def_label(output_ins.label,
|
|
output_ins.oprs[0].segment,
|
|
output_ins.oprs[0].offset, NULL,
|
|
FALSE, isext, ofmt,
|
|
report_error);
|
|
} else if (output_ins.operands == 2
|
|
&& (output_ins.oprs[0].
|
|
type & IMMEDIATE)
|
|
&& (output_ins.oprs[0].type & COLON)
|
|
&& output_ins.oprs[0].segment ==
|
|
NO_SEG
|
|
&& output_ins.oprs[0].wrt == NO_SEG
|
|
&& (output_ins.oprs[1].
|
|
type & IMMEDIATE)
|
|
&& output_ins.oprs[1].segment ==
|
|
NO_SEG
|
|
&& output_ins.oprs[1].wrt ==
|
|
NO_SEG) {
|
|
def_label(output_ins.label,
|
|
output_ins.oprs[0].
|
|
offset | SEG_ABS,
|
|
output_ins.oprs[1].offset, NULL,
|
|
FALSE, FALSE, ofmt,
|
|
report_error);
|
|
} else
|
|
report_error(ERR_NONFATAL,
|
|
"bad syntax for EQU");
|
|
}
|
|
} else { /* pass == 2 */
|
|
/*
|
|
* Special `..' EQUs get processed here, except
|
|
* `..@' macro processor EQUs which are done above.
|
|
*/
|
|
if (output_ins.label[0] == '.' &&
|
|
output_ins.label[1] == '.' &&
|
|
output_ins.label[2] != '@') {
|
|
if (output_ins.operands == 1 &&
|
|
(output_ins.oprs[0].type & IMMEDIATE)) {
|
|
define_label(output_ins.label,
|
|
output_ins.oprs[0].segment,
|
|
output_ins.oprs[0].offset,
|
|
NULL, FALSE, FALSE, ofmt,
|
|
report_error);
|
|
} else if (output_ins.operands == 2
|
|
&& (output_ins.oprs[0].
|
|
type & IMMEDIATE)
|
|
&& (output_ins.oprs[0].type & COLON)
|
|
&& output_ins.oprs[0].segment ==
|
|
NO_SEG
|
|
&& (output_ins.oprs[1].
|
|
type & IMMEDIATE)
|
|
&& output_ins.oprs[1].segment ==
|
|
NO_SEG) {
|
|
define_label(output_ins.label,
|
|
output_ins.oprs[0].
|
|
offset | SEG_ABS,
|
|
output_ins.oprs[1].offset,
|
|
NULL, FALSE, FALSE, ofmt,
|
|
report_error);
|
|
} else
|
|
report_error(ERR_NONFATAL,
|
|
"bad syntax for EQU");
|
|
}
|
|
} /* pass == 2 */
|
|
} else { /* instruction isn't an EQU */
|
|
|
|
if (pass1 == 1) {
|
|
|
|
int32_t l = insn_size(location.segment, offs, sb, cpu,
|
|
&output_ins, report_error);
|
|
|
|
/* if (using_debug_info) && output_ins.opcode != -1) */
|
|
if (using_debug_info)
|
|
{ /* fbk 03/25/01 */
|
|
/* this is done here so we can do debug type info */
|
|
int32_t typeinfo =
|
|
TYS_ELEMENTS(output_ins.operands);
|
|
switch (output_ins.opcode) {
|
|
case I_RESB:
|
|
typeinfo =
|
|
TYS_ELEMENTS(output_ins.oprs[0].
|
|
offset) | TY_BYTE;
|
|
break;
|
|
case I_RESW:
|
|
typeinfo =
|
|
TYS_ELEMENTS(output_ins.oprs[0].
|
|
offset) | TY_WORD;
|
|
break;
|
|
case I_RESD:
|
|
typeinfo =
|
|
TYS_ELEMENTS(output_ins.oprs[0].
|
|
offset) | TY_DWORD;
|
|
break;
|
|
case I_RESQ:
|
|
typeinfo =
|
|
TYS_ELEMENTS(output_ins.oprs[0].
|
|
offset) | TY_QWORD;
|
|
break;
|
|
case I_REST:
|
|
typeinfo =
|
|
TYS_ELEMENTS(output_ins.oprs[0].
|
|
offset) | TY_TBYTE;
|
|
break;
|
|
case I_DB:
|
|
typeinfo |= TY_BYTE;
|
|
break;
|
|
case I_DW:
|
|
typeinfo |= TY_WORD;
|
|
break;
|
|
case I_DD:
|
|
if (output_ins.eops_float)
|
|
typeinfo |= TY_FLOAT;
|
|
else
|
|
typeinfo |= TY_DWORD;
|
|
break;
|
|
case I_DQ:
|
|
typeinfo |= TY_QWORD;
|
|
break;
|
|
case I_DT:
|
|
typeinfo |= TY_TBYTE;
|
|
break;
|
|
case I_DO:
|
|
typeinfo |= TY_OWORD;
|
|
break;
|
|
default:
|
|
typeinfo = TY_LABEL;
|
|
|
|
}
|
|
|
|
ofmt->current_dfmt->debug_typevalue(typeinfo);
|
|
|
|
}
|
|
if (l != -1) {
|
|
offs += l;
|
|
SET_CURR_OFFS(offs);
|
|
}
|
|
/*
|
|
* else l == -1 => invalid instruction, which will be
|
|
* flagged as an error on pass 2
|
|
*/
|
|
|
|
} else { /* pass == 2 */
|
|
offs += assemble(location.segment, offs, sb, cpu,
|
|
&output_ins, ofmt, report_error,
|
|
&nasmlist);
|
|
SET_CURR_OFFS(offs);
|
|
|
|
}
|
|
} /* not an EQU */
|
|
cleanup_insn(&output_ins);
|
|
}
|
|
nasm_free(line);
|
|
location.offset = offs = GET_CURR_OFFS;
|
|
} /* end while (line = preproc->getline... */
|
|
|
|
if (pass1 == 2 && global_offset_changed)
|
|
report_error(ERR_NONFATAL,
|
|
"phase error detected at end of assembly.");
|
|
|
|
if (pass1 == 1)
|
|
preproc->cleanup(1);
|
|
|
|
if (pass1 == 1 && terminate_after_phase) {
|
|
fclose(ofile);
|
|
remove(outname);
|
|
if (want_usage)
|
|
usage();
|
|
exit(1);
|
|
}
|
|
pass_cnt++;
|
|
if (pass > 1 && !global_offset_changed) {
|
|
pass0++;
|
|
if (pass0 == 2)
|
|
pass = pass_max - 1;
|
|
} else if (!(optimizing > 0))
|
|
pass0++;
|
|
|
|
} /* for (pass=1; pass<=2; pass++) */
|
|
|
|
preproc->cleanup(0);
|
|
nasmlist.cleanup();
|
|
#if 1
|
|
if (optimizing > 0 && opt_verbose_info) /* -On and -Ov switches */
|
|
fprintf(stdout,
|
|
"info:: assembly required 1+%d+1 passes\n", pass_cnt - 2);
|
|
#endif
|
|
} /* exit from assemble_file (...) */
|
|
|
|
static int getkw(char **directive, char **value)
|
|
{
|
|
char *p, *q, *buf;
|
|
|
|
buf = *directive;
|
|
|
|
/* allow leading spaces or tabs */
|
|
while (*buf == ' ' || *buf == '\t')
|
|
buf++;
|
|
|
|
if (*buf != '[')
|
|
return 0;
|
|
|
|
p = buf;
|
|
|
|
while (*p && *p != ']')
|
|
p++;
|
|
|
|
if (!*p)
|
|
return 0;
|
|
|
|
q = p++;
|
|
|
|
while (*p && *p != ';') {
|
|
if (!isspace(*p))
|
|
return 0;
|
|
p++;
|
|
}
|
|
q[1] = '\0';
|
|
|
|
*directive = p = buf + 1;
|
|
while (*buf && *buf != ' ' && *buf != ']' && *buf != '\t')
|
|
buf++;
|
|
if (*buf == ']') {
|
|
*buf = '\0';
|
|
*value = buf;
|
|
} else {
|
|
*buf++ = '\0';
|
|
while (isspace(*buf))
|
|
buf++; /* beppu - skip leading whitespace */
|
|
*value = buf;
|
|
while (*buf != ']')
|
|
buf++;
|
|
*buf++ = '\0';
|
|
}
|
|
|
|
return bsii(*directive, directives, elements(directives));
|
|
}
|
|
|
|
/**
|
|
* gnu style error reporting
|
|
* This function prints an error message to error_file in the
|
|
* style used by GNU. An example would be:
|
|
* file.asm:50: error: blah blah blah
|
|
* where file.asm is the name of the file, 50 is the line number on
|
|
* which the error occurs (or is detected) and "error:" is one of
|
|
* the possible optional diagnostics -- it can be "error" or "warning"
|
|
* or something else. Finally the line terminates with the actual
|
|
* error message.
|
|
*
|
|
* @param severity the severity of the warning or error
|
|
* @param fmt the printf style format string
|
|
*/
|
|
static void report_error_gnu(int severity, const char *fmt, ...)
|
|
{
|
|
va_list ap;
|
|
|
|
if (is_suppressed_warning(severity))
|
|
return;
|
|
|
|
if (severity & ERR_NOFILE)
|
|
fputs("nasm: ", error_file);
|
|
else {
|
|
char *currentfile = NULL;
|
|
int32_t lineno = 0;
|
|
src_get(&lineno, ¤tfile);
|
|
fprintf(error_file, "%s:%"PRId32": ", currentfile, lineno);
|
|
nasm_free(currentfile);
|
|
}
|
|
va_start(ap, fmt);
|
|
report_error_common(severity, fmt, ap);
|
|
va_end(ap);
|
|
}
|
|
|
|
/**
|
|
* MS style error reporting
|
|
* This function prints an error message to error_file in the
|
|
* style used by Visual C and some other Microsoft tools. An example
|
|
* would be:
|
|
* file.asm(50) : error: blah blah blah
|
|
* where file.asm is the name of the file, 50 is the line number on
|
|
* which the error occurs (or is detected) and "error:" is one of
|
|
* the possible optional diagnostics -- it can be "error" or "warning"
|
|
* or something else. Finally the line terminates with the actual
|
|
* error message.
|
|
*
|
|
* @param severity the severity of the warning or error
|
|
* @param fmt the printf style format string
|
|
*/
|
|
static void report_error_vc(int severity, const char *fmt, ...)
|
|
{
|
|
va_list ap;
|
|
|
|
if (is_suppressed_warning(severity))
|
|
return;
|
|
|
|
if (severity & ERR_NOFILE)
|
|
fputs("nasm: ", error_file);
|
|
else {
|
|
char *currentfile = NULL;
|
|
int32_t lineno = 0;
|
|
src_get(&lineno, ¤tfile);
|
|
fprintf(error_file, "%s(%"PRId32") : ", currentfile, lineno);
|
|
nasm_free(currentfile);
|
|
}
|
|
va_start(ap, fmt);
|
|
report_error_common(severity, fmt, ap);
|
|
va_end(ap);
|
|
}
|
|
|
|
/**
|
|
* check for supressed warning
|
|
* checks for suppressed warning or pass one only warning and we're
|
|
* not in pass 1
|
|
*
|
|
* @param severity the severity of the warning or error
|
|
* @return true if we should abort error/warning printing
|
|
*/
|
|
static int is_suppressed_warning(int severity)
|
|
{
|
|
/*
|
|
* See if it's a suppressed warning.
|
|
*/
|
|
return ((severity & ERR_MASK) == ERR_WARNING &&
|
|
(severity & ERR_WARN_MASK) != 0 &&
|
|
suppressed[(severity & ERR_WARN_MASK) >> ERR_WARN_SHR]) ||
|
|
/*
|
|
* See if it's a pass-one only warning and we're not in pass one.
|
|
*/
|
|
((severity & ERR_PASS1) && pass0 == 2);
|
|
}
|
|
|
|
/**
|
|
* common error reporting
|
|
* This is the common back end of the error reporting schemes currently
|
|
* implemented. It prints the nature of the warning and then the
|
|
* specific error message to error_file and may or may not return. It
|
|
* doesn't return if the error severity is a "panic" or "debug" type.
|
|
*
|
|
* @param severity the severity of the warning or error
|
|
* @param fmt the printf style format string
|
|
*/
|
|
static void report_error_common(int severity, const char *fmt,
|
|
va_list args)
|
|
{
|
|
switch (severity & ERR_MASK) {
|
|
case ERR_WARNING:
|
|
fputs("warning: ", error_file);
|
|
break;
|
|
case ERR_NONFATAL:
|
|
fputs("error: ", error_file);
|
|
break;
|
|
case ERR_FATAL:
|
|
fputs("fatal: ", error_file);
|
|
break;
|
|
case ERR_PANIC:
|
|
fputs("panic: ", error_file);
|
|
break;
|
|
case ERR_DEBUG:
|
|
fputs("debug: ", error_file);
|
|
break;
|
|
}
|
|
|
|
vfprintf(error_file, fmt, args);
|
|
fputc('\n', error_file);
|
|
|
|
if (severity & ERR_USAGE)
|
|
want_usage = TRUE;
|
|
|
|
switch (severity & ERR_MASK) {
|
|
case ERR_WARNING:
|
|
case ERR_DEBUG:
|
|
/* no further action, by definition */
|
|
break;
|
|
case ERR_NONFATAL:
|
|
/* hack enables listing(!) on errors */
|
|
terminate_after_phase = TRUE;
|
|
break;
|
|
case ERR_FATAL:
|
|
if (ofile) {
|
|
fclose(ofile);
|
|
remove(outname);
|
|
}
|
|
if (want_usage)
|
|
usage();
|
|
exit(1); /* instantly die */
|
|
break; /* placate silly compilers */
|
|
case ERR_PANIC:
|
|
fflush(NULL);
|
|
/* abort(); *//* halt, catch fire, and dump core */
|
|
exit(3);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void usage(void)
|
|
{
|
|
fputs("type `nasm -h' for help\n", error_file);
|
|
}
|
|
|
|
static void register_output_formats(void)
|
|
{
|
|
ofmt = ofmt_register(report_error);
|
|
}
|
|
|
|
#define BUF_DELTA 512
|
|
|
|
static FILE *no_pp_fp;
|
|
static efunc no_pp_err;
|
|
static ListGen *no_pp_list;
|
|
static int32_t no_pp_lineinc;
|
|
|
|
static void no_pp_reset(char *file, int pass, efunc error, evalfunc eval,
|
|
ListGen * listgen)
|
|
{
|
|
src_set_fname(nasm_strdup(file));
|
|
src_set_linnum(0);
|
|
no_pp_lineinc = 1;
|
|
no_pp_err = error;
|
|
no_pp_fp = fopen(file, "r");
|
|
if (!no_pp_fp)
|
|
no_pp_err(ERR_FATAL | ERR_NOFILE,
|
|
"unable to open input file `%s'", file);
|
|
no_pp_list = listgen;
|
|
(void)pass; /* placate compilers */
|
|
(void)eval; /* placate compilers */
|
|
}
|
|
|
|
static char *no_pp_getline(void)
|
|
{
|
|
char *buffer, *p, *q;
|
|
int bufsize;
|
|
|
|
bufsize = BUF_DELTA;
|
|
buffer = nasm_malloc(BUF_DELTA);
|
|
src_set_linnum(src_get_linnum() + no_pp_lineinc);
|
|
|
|
while (1) { /* Loop to handle %line */
|
|
|
|
p = buffer;
|
|
while (1) { /* Loop to handle long lines */
|
|
q = fgets(p, bufsize - (p - buffer), no_pp_fp);
|
|
if (!q)
|
|
break;
|
|
p += strlen(p);
|
|
if (p > buffer && p[-1] == '\n')
|
|
break;
|
|
if (p - buffer > bufsize - 10) {
|
|
int offset;
|
|
offset = p - buffer;
|
|
bufsize += BUF_DELTA;
|
|
buffer = nasm_realloc(buffer, bufsize);
|
|
p = buffer + offset;
|
|
}
|
|
}
|
|
|
|
if (!q && p == buffer) {
|
|
nasm_free(buffer);
|
|
return NULL;
|
|
}
|
|
|
|
/*
|
|
* Play safe: remove CRs, LFs and any spurious ^Zs, if any of
|
|
* them are present at the end of the line.
|
|
*/
|
|
buffer[strcspn(buffer, "\r\n\032")] = '\0';
|
|
|
|
if (!strncmp(buffer, "%line", 5)) {
|
|
int32_t ln;
|
|
int li;
|
|
char *nm = nasm_malloc(strlen(buffer));
|
|
if (sscanf(buffer + 5, "%"PRId32"+%d %s", &ln, &li, nm) == 3) {
|
|
nasm_free(src_set_fname(nm));
|
|
src_set_linnum(ln);
|
|
no_pp_lineinc = li;
|
|
continue;
|
|
}
|
|
nasm_free(nm);
|
|
}
|
|
break;
|
|
}
|
|
|
|
no_pp_list->line(LIST_READ, buffer);
|
|
|
|
return buffer;
|
|
}
|
|
|
|
static void no_pp_cleanup(int pass)
|
|
{
|
|
(void)pass; /* placate GCC */
|
|
fclose(no_pp_fp);
|
|
}
|
|
|
|
static uint32_t get_cpu(char *value)
|
|
{
|
|
|
|
if (!strcmp(value, "8086"))
|
|
return IF_8086;
|
|
if (!strcmp(value, "186"))
|
|
return IF_186;
|
|
if (!strcmp(value, "286"))
|
|
return IF_286;
|
|
if (!strcmp(value, "386"))
|
|
return IF_386;
|
|
if (!strcmp(value, "486"))
|
|
return IF_486;
|
|
if (!strcmp(value, "586") || !nasm_stricmp(value, "pentium"))
|
|
return IF_PENT;
|
|
if (!strcmp(value, "686") ||
|
|
!nasm_stricmp(value, "ppro") ||
|
|
!nasm_stricmp(value, "pentiumpro") || !nasm_stricmp(value, "p2"))
|
|
return IF_P6;
|
|
if (!nasm_stricmp(value, "p3") || !nasm_stricmp(value, "katmai"))
|
|
return IF_KATMAI;
|
|
if (!nasm_stricmp(value, "p4") || /* is this right? -- jrc */
|
|
!nasm_stricmp(value, "willamette"))
|
|
return IF_WILLAMETTE;
|
|
if (!nasm_stricmp(value, "prescott"))
|
|
return IF_PRESCOTT;
|
|
if (!nasm_stricmp(value, "x64") ||
|
|
!nasm_stricmp(value, "x86-64"))
|
|
return IF_X86_64;
|
|
if (!nasm_stricmp(value, "ia64") ||
|
|
!nasm_stricmp(value, "ia-64") ||
|
|
!nasm_stricmp(value, "itanium") ||
|
|
!nasm_stricmp(value, "itanic") || !nasm_stricmp(value, "merced"))
|
|
return IF_IA64;
|
|
|
|
report_error(pass0 < 2 ? ERR_NONFATAL : ERR_FATAL,
|
|
"unknown 'cpu' type");
|
|
|
|
return IF_PLEVEL; /* the maximum level */
|
|
}
|
|
|
|
static int get_bits(char *value)
|
|
{
|
|
int i;
|
|
|
|
if ((i = atoi(value)) == 16)
|
|
return i; /* set for a 16-bit segment */
|
|
else if (i == 32) {
|
|
if (cpu < IF_386) {
|
|
report_error(ERR_NONFATAL,
|
|
"cannot specify 32-bit segment on processor below a 386");
|
|
i = 16;
|
|
}
|
|
} else if (i == 64) {
|
|
if (cpu < IF_X86_64) {
|
|
report_error(ERR_NONFATAL,
|
|
"cannot specify 64-bit segment on processor below an x86-64");
|
|
i = 16;
|
|
}
|
|
if (i != maxbits) {
|
|
report_error(ERR_NONFATAL,
|
|
"%s output format does not support 64-bit code",
|
|
ofmt->shortname);
|
|
i = 16;
|
|
}
|
|
} else {
|
|
report_error(pass0 < 2 ? ERR_NONFATAL : ERR_FATAL,
|
|
"`%s' is not a valid segment size; must be 16, 32 or 64",
|
|
value);
|
|
i = 16;
|
|
}
|
|
return i;
|
|
}
|
|
|
|
/* end of nasm.c */
|