1 /* ----------------------------------------------------------------------- *
3 * Copyright 1996-2016 The NASM Authors - All Rights Reserved
4 * See the file AUTHORS included with the NASM distribution for
5 * the specific copyright holders.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following
11 * * Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * * Redistributions in binary form must reproduce the above
14 * copyright notice, this list of conditions and the following
15 * disclaimer in the documentation and/or other materials provided
16 * with the distribution.
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
19 * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
20 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
21 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
22 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
23 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
24 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
25 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
26 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
29 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
30 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32 * ----------------------------------------------------------------------- */
35 * The Netwide Assembler main program module
60 #include "output/outform.h"
66 * This is the maximum number of optimization passes to do. If we ever
67 * find a case where the optimizer doesn't naturally converge, we might
68 * have to drop this value so the assembler doesn't appear to just hang.
70 #define MAX_OPTIMIZE (INT_MAX >> 1)
72 struct forwrefinfo
{ /* info held on forward refs. */
77 static int get_bits(char *value
);
78 static iflag_t
get_cpu(char *cpu_str
);
79 static void parse_cmdline(int, char **);
80 static void assemble_file(char *, StrList
**);
81 static bool is_suppressed_warning(int severity
);
82 static bool skip_this_pass(int severity
);
83 static void nasm_verror_gnu(int severity
, const char *fmt
, va_list args
);
84 static void nasm_verror_vc(int severity
, const char *fmt
, va_list args
);
85 static void nasm_verror_common(int severity
, const char *fmt
, va_list args
);
86 static void usage(void);
88 static bool using_debug_info
, opt_verbose_info
;
89 static const char *debug_format
;
91 bool tasm_compatible_mode
= false;
96 static time_t official_compile_time
;
98 static char inname
[FILENAME_MAX
];
99 static char outname
[FILENAME_MAX
];
100 static char listname
[FILENAME_MAX
];
101 static char errname
[FILENAME_MAX
];
102 static int globallineno
; /* for forward-reference tracking */
103 /* static int pass = 0; */
104 const struct ofmt
*ofmt
= &OF_DEFAULT
;
105 const struct ofmt_alias
*ofmt_alias
= NULL
;
106 const struct dfmt
*dfmt
;
108 static FILE *error_file
; /* Where to write error messages */
111 int optimizing
= MAX_OPTIMIZE
; /* number of optimization passes to take */
112 static int sb
, cmd_sb
= 16; /* by default */
115 static iflag_t cmd_cpu
;
117 int64_t global_offset_changed
; /* referenced in labels.c */
118 int64_t prev_offset_changed
;
121 struct location location
;
122 int in_abs_seg
; /* Flag we are in ABSOLUTE seg */
123 int32_t abs_seg
; /* ABSOLUTE segment basis */
124 int32_t abs_offset
; /* ABSOLUTE offset */
126 static struct RAA
*offsets
;
128 static struct SAA
*forwrefs
; /* keep track of forward references */
129 static const struct forwrefinfo
*forwref
;
131 static const struct preproc_ops
*preproc
;
133 #define OP_NORMAL (1u << 0)
134 #define OP_PREPROCESS (1u << 1)
135 #define OP_DEPEND (1u << 2)
137 static unsigned int operating_mode
;
139 /* Dependency flags */
140 static bool depend_emit_phony
= false;
141 static bool depend_missing_ok
= false;
142 static const char *depend_target
= NULL
;
143 static const char *depend_file
= NULL
;
146 * Which of the suppressible warnings are suppressed. Entry zero
147 * isn't an actual warning, but it used for -w+error/-Werror.
150 static bool warning_on
[ERR_WARN_MAX
+1]; /* Current state */
151 static bool warning_on_global
[ERR_WARN_MAX
+1]; /* Command-line state */
153 static const struct warning
{
157 } warnings
[ERR_WARN_MAX
+1] = {
158 {"error", "treat warnings as errors", false},
159 {"macro-params", "macro calls with wrong parameter count", true},
160 {"macro-selfref", "cyclic macro references", false},
161 {"macro-defaults", "macros with more default than optional parameters", true},
162 {"orphan-labels", "labels alone on lines without trailing `:'", true},
163 {"number-overflow", "numeric constant does not fit", true},
164 {"gnu-elf-extensions", "using 8- or 16-bit relocation in ELF32, a GNU extension", false},
165 {"float-overflow", "floating point overflow", true},
166 {"float-denorm", "floating point denormal", false},
167 {"float-underflow", "floating point underflow", false},
168 {"float-toolong", "too many digits in floating-point number", true},
169 {"user", "%warning directives", true},
170 {"lock", "lock prefix on unlockable instructions", true},
171 {"hle", "invalid hle prefixes", true},
172 {"bnd", "invalid bnd prefixes", true},
173 {"zext-reloc", "relocation zero-extended to match output format", true},
174 {"ptr", "non-NASM keyword used in other assemblers", true},
177 static bool want_usage
;
178 static bool terminate_after_phase
;
179 bool user_nolist
= false;
181 static char *quote_for_make(const char *str
);
183 static int64_t get_curr_offs(void)
185 return in_abs_seg
? abs_offset
: raa_read(offsets
, location
.segment
);
188 static void set_curr_offs(int64_t l_off
)
193 offsets
= raa_write(offsets
, location
.segment
, l_off
);
196 static void nasm_fputs(const char *line
, FILE * outfile
)
199 fputs(line
, outfile
);
205 /* Convert a struct tm to a POSIX-style time constant */
206 static int64_t make_posix_time(struct tm
*tm
)
209 int64_t y
= tm
->tm_year
;
211 /* See IEEE 1003.1:2004, section 4.14 */
213 t
= (y
-70)*365 + (y
-69)/4 - (y
-1)/100 + (y
+299)/400;
225 static void define_macros_early(void)
228 struct tm lt
, *lt_p
, gm
, *gm_p
;
231 lt_p
= localtime(&official_compile_time
);
235 strftime(temp
, sizeof temp
, "__DATE__=\"%Y-%m-%d\"", <
);
236 preproc
->pre_define(temp
);
237 strftime(temp
, sizeof temp
, "__DATE_NUM__=%Y%m%d", <
);
238 preproc
->pre_define(temp
);
239 strftime(temp
, sizeof temp
, "__TIME__=\"%H:%M:%S\"", <
);
240 preproc
->pre_define(temp
);
241 strftime(temp
, sizeof temp
, "__TIME_NUM__=%H%M%S", <
);
242 preproc
->pre_define(temp
);
245 gm_p
= gmtime(&official_compile_time
);
249 strftime(temp
, sizeof temp
, "__UTC_DATE__=\"%Y-%m-%d\"", &gm
);
250 preproc
->pre_define(temp
);
251 strftime(temp
, sizeof temp
, "__UTC_DATE_NUM__=%Y%m%d", &gm
);
252 preproc
->pre_define(temp
);
253 strftime(temp
, sizeof temp
, "__UTC_TIME__=\"%H:%M:%S\"", &gm
);
254 preproc
->pre_define(temp
);
255 strftime(temp
, sizeof temp
, "__UTC_TIME_NUM__=%H%M%S", &gm
);
256 preproc
->pre_define(temp
);
260 posix_time
= make_posix_time(&gm
);
262 posix_time
= make_posix_time(<
);
267 snprintf(temp
, sizeof temp
, "__POSIX_TIME__=%"PRId64
, posix_time
);
268 preproc
->pre_define(temp
);
272 static void define_macros_late(void)
277 * In case if output format is defined by alias
278 * we have to put shortname of the alias itself here
279 * otherwise ABI backward compatibility gets broken.
281 snprintf(temp
, sizeof(temp
), "__OUTPUT_FORMAT__=%s",
282 ofmt_alias
? ofmt_alias
->shortname
: ofmt
->shortname
);
283 preproc
->pre_define(temp
);
286 static void emit_dependencies(StrList
*list
)
292 if (depend_file
&& strcmp(depend_file
, "-")) {
293 deps
= fopen(depend_file
, "w");
295 nasm_error(ERR_NONFATAL
|ERR_NOFILE
|ERR_USAGE
,
296 "unable to write dependency file `%s'", depend_file
);
303 linepos
= fprintf(deps
, "%s:", depend_target
);
304 list_for_each(l
, list
) {
305 char *file
= quote_for_make(l
->str
);
307 if (linepos
+ len
> 62 && linepos
> 1) {
308 fprintf(deps
, " \\\n ");
311 fprintf(deps
, " %s", file
);
315 fprintf(deps
, "\n\n");
317 list_for_each_safe(l
, nl
, list
) {
318 if (depend_emit_phony
)
319 fprintf(deps
, "%s:\n\n", l
->str
);
327 int main(int argc
, char **argv
)
329 StrList
*depend_list
= NULL
, **depend_ptr
;
331 time(&official_compile_time
);
333 iflag_set(&cpu
, IF_PLEVEL
);
334 iflag_set(&cmd_cpu
, IF_PLEVEL
);
337 want_usage
= terminate_after_phase
= false;
338 nasm_set_verror(nasm_verror_gnu
);
345 offsets
= raa_init();
346 forwrefs
= saa_init((int32_t)sizeof(struct forwrefinfo
));
349 operating_mode
= OP_NORMAL
;
351 /* Define some macros dependent on the runtime, but not
352 on the command line. */
353 define_macros_early();
355 parse_cmdline(argc
, argv
);
357 if (terminate_after_phase
) {
363 if (!using_debug_info
) {
364 /* No debug info, redirect to the null backend (empty stubs) */
365 dfmt
= &null_debug_form
;
366 } else if (!debug_format
) {
367 /* Default debug format for this backend */
368 dfmt
= ofmt
->default_dfmt
;
370 dfmt
= dfmt_find(ofmt
, debug_format
);
372 nasm_fatal(ERR_NOFILE
| ERR_USAGE
,
373 "unrecognized debug format `%s' for"
374 " output format `%s'",
375 debug_format
, ofmt
->shortname
);
380 preproc
->extra_stdmac(ofmt
->stdmac
);
382 /* define some macros dependent of command-line */
383 define_macros_late();
385 depend_ptr
= (depend_file
|| (operating_mode
& OP_DEPEND
)) ? &depend_list
: NULL
;
387 depend_target
= quote_for_make(outname
);
389 if (operating_mode
& OP_DEPEND
) {
392 if (depend_missing_ok
)
393 preproc
->include_path(NULL
); /* "assume generated" */
395 preproc
->reset(inname
, 0, depend_ptr
);
396 if (outname
[0] == '\0')
397 ofmt
->filename(inname
, outname
);
399 while ((line
= preproc
->getline()))
402 } else if (operating_mode
& OP_PREPROCESS
) {
404 const char *file_name
= NULL
;
405 int32_t prior_linnum
= 0;
409 ofile
= fopen(outname
, "w");
411 nasm_fatal(ERR_NOFILE
,
412 "unable to open output file `%s'",
417 location
.known
= false;
420 preproc
->reset(inname
, 3, depend_ptr
);
421 memcpy(warning_on
, warning_on_global
,
422 (ERR_WARN_MAX
+1) * sizeof(bool));
424 while ((line
= preproc
->getline())) {
426 * We generate %line directives if needed for later programs
428 int32_t linnum
= prior_linnum
+= lineinc
;
429 int altline
= src_get(&linnum
, &file_name
);
431 if (altline
== 1 && lineinc
== 1)
432 nasm_fputs("", ofile
);
434 lineinc
= (altline
!= -1 || lineinc
!= 1);
435 fprintf(ofile
? ofile
: stdout
,
436 "%%line %"PRId32
"+%d %s\n", linnum
, lineinc
,
439 prior_linnum
= linnum
;
441 nasm_fputs(line
, ofile
);
447 if (ofile
&& terminate_after_phase
)
452 if (operating_mode
& OP_NORMAL
) {
454 * We must call ofmt->filename _anyway_, even if the user
455 * has specified their own output file, because some
456 * formats (eg OBJ and COFF) use ofmt->filename to find out
457 * the name of the input file and then put that inside the
460 ofmt
->filename(inname
, outname
);
462 ofile
= fopen(outname
, (ofmt
->flags
& OFMT_TEXT
) ? "w" : "wb");
464 nasm_fatal(ERR_NOFILE
,
465 "unable to open output file `%s'", outname
);
468 * We must call init_labels() before ofmt->init() since
469 * some object formats will want to define labels in their
470 * init routines. (eg OS/2 defines the FLAT group)
477 assemble_file(inname
, depend_ptr
);
479 if (!terminate_after_phase
) {
484 nasm_error(ERR_NONFATAL
|ERR_NOFILE
,
485 "write error on output file `%s'", outname
);
486 terminate_after_phase
= true;
492 if (terminate_after_phase
)
498 if (depend_list
&& !terminate_after_phase
)
499 emit_dependencies(depend_list
);
510 return terminate_after_phase
;
514 * Get a parameter for a command line option.
515 * First arg must be in the form of e.g. -f...
517 static char *get_param(char *p
, char *q
, bool *advance
)
520 if (p
[2]) /* the parameter's in the option */
521 return nasm_skip_spaces(p
+ 2);
526 nasm_error(ERR_NONFATAL
| ERR_NOFILE
| ERR_USAGE
,
527 "option `-%c' requires an argument", p
[1]);
534 static void copy_filename(char *dst
, const char *src
)
536 size_t len
= strlen(src
);
538 if (len
>= (size_t)FILENAME_MAX
) {
539 nasm_fatal(ERR_NOFILE
, "file name too long");
542 strncpy(dst
, src
, FILENAME_MAX
);
546 * Convert a string to Make-safe form
548 static char *quote_for_make(const char *str
)
553 size_t n
= 1; /* Terminating zero */
559 for (p
= str
; *p
; p
++) {
563 /* Convert N backslashes + ws -> 2N+1 backslashes + ws */
583 /* Convert N backslashes at the end of filename to 2N backslashes */
587 os
= q
= nasm_malloc(n
);
590 for (p
= str
; *p
; p
++) {
636 static const struct textargs textopts
[] = {
637 {"prefix", OPT_PREFIX
},
638 {"postfix", OPT_POSTFIX
},
642 static void show_version(void)
644 printf("NASM version %s compiled on %s%s\n",
645 nasm_version
, nasm_date
, nasm_compile_options
);
649 static bool stopoptions
= false;
650 static bool process_arg(char *p
, char *q
)
654 bool advance
= false;
660 if (p
[0] == '-' && !stopoptions
) {
661 if (strchr("oOfpPdDiIlFXuUZwW", p
[1])) {
662 /* These parameters take values */
663 if (!(param
= get_param(p
, q
, &advance
)))
672 case 'o': /* output file */
673 copy_filename(outname
, param
);
676 case 'f': /* output format */
677 ofmt
= ofmt_find(param
, &ofmt_alias
);
679 nasm_fatal(ERR_NOFILE
| ERR_USAGE
,
680 "unrecognised output format `%s' - "
681 "use -hf for a list", param
);
685 case 'O': /* Optimization level */
690 /* Naked -O == -Ox */
691 optimizing
= MAX_OPTIMIZE
;
695 case '0': case '1': case '2': case '3': case '4':
696 case '5': case '6': case '7': case '8': case '9':
697 opt
= strtoul(param
, ¶m
, 10);
699 /* -O0 -> optimizing == -1, 0.98 behaviour */
700 /* -O1 -> optimizing == 0, 0.98.09 behaviour */
702 optimizing
= opt
- 1;
710 opt_verbose_info
= true;
715 optimizing
= MAX_OPTIMIZE
;
720 "unknown optimization option -O%c\n",
725 if (optimizing
> MAX_OPTIMIZE
)
726 optimizing
= MAX_OPTIMIZE
;
731 case 'p': /* pre-include */
733 preproc
->pre_include(param
);
736 case 'd': /* pre-define */
738 preproc
->pre_define(param
);
741 case 'u': /* un-define */
743 preproc
->pre_undefine(param
);
746 case 'i': /* include search path */
748 preproc
->include_path(param
);
751 case 'l': /* listing file */
752 copy_filename(listname
, param
);
755 case 'Z': /* error messages file */
756 copy_filename(errname
, param
);
759 case 'F': /* specify debug format */
760 using_debug_info
= true;
761 debug_format
= param
;
764 case 'X': /* specify error reporting format */
765 if (nasm_stricmp("vc", param
) == 0)
766 nasm_set_verror(nasm_verror_vc
);
767 else if (nasm_stricmp("gnu", param
) == 0)
768 nasm_set_verror(nasm_verror_gnu
);
770 nasm_fatal(ERR_NOFILE
| ERR_USAGE
,
771 "unrecognized error reporting format `%s'",
776 using_debug_info
= true;
778 debug_format
= nasm_skip_spaces(p
+ 2);
783 ("usage: nasm [-@ response file] [-o outfile] [-f format] "
785 " [options...] [--] filename\n"
786 " or nasm -v (or --v) for version info\n\n"
787 " -t assemble in SciTech TASM compatible mode\n");
789 (" -E (or -e) preprocess only (writes output to stdout by default)\n"
790 " -a don't preprocess (assemble only)\n"
791 " -M generate Makefile dependencies on stdout\n"
792 " -MG d:o, missing files assumed generated\n"
793 " -MF <file> set Makefile dependency file\n"
794 " -MD <file> assemble and generate dependencies\n"
795 " -MT <file> dependency target name\n"
796 " -MQ <file> dependency target name (quoted)\n"
797 " -MP emit phony target\n\n"
798 " -Z<file> redirect error messages to file\n"
799 " -s redirect error messages to stdout\n\n"
800 " -g generate debugging information\n\n"
801 " -F format select a debugging format\n\n"
802 " -gformat same as -g -F format\n\n"
803 " -o outfile write output to an outfile\n\n"
804 " -f format select an output format\n\n"
805 " -l listfile write listing to a listfile\n\n"
806 " -I<path> adds a pathname to the include file path\n");
808 (" -O<digit> optimize branch offsets\n"
809 " -O0: No optimization\n"
810 " -O1: Minimal optimization\n"
811 " -Ox: Multipass optimization (default)\n\n"
812 " -P<file> pre-includes a file\n"
813 " -D<macro>[=<value>] pre-defines a macro\n"
814 " -U<macro> undefines a macro\n"
815 " -X<format> specifies error reporting format (gnu or vc)\n"
816 " -w+foo enables warning foo (equiv. -Wfoo)\n"
817 " -w-foo disable warning foo (equiv. -Wno-foo)\n\n"
818 " -h show invocation summary and exit\n\n"
819 "--prefix,--postfix\n"
820 " this options prepend or append the given argument to all\n"
821 " extern and global variables\n"
823 for (i
= 0; i
<= ERR_WARN_MAX
; i
++)
824 printf(" %-23s %s (default %s)\n",
825 warnings
[i
].name
, warnings
[i
].help
,
826 warnings
[i
].enabled
? "on" : "off");
828 ("\nresponse files should contain command line parameters"
829 ", one per line.\n");
831 printf("\nvalid output formats for -f are"
832 " (`*' denotes default):\n");
833 ofmt_list(ofmt
, stdout
);
835 printf("\nFor a list of valid output formats, use -hf.\n");
836 printf("For a list of debug formats, use -f <form> -y.\n");
838 exit(0); /* never need usage message here */
842 printf("\nvalid debug formats for '%s' output format are"
843 " ('*' denotes default):\n", ofmt
->shortname
);
844 dfmt_list(ofmt
, stdout
);
849 tasm_compatible_mode
= true;
856 case 'e': /* preprocess only */
858 operating_mode
= OP_PREPROCESS
;
861 case 'a': /* assemble only - don't preprocess */
862 preproc
= &preproc_nop
;
866 if (param
[0] == 'n' && param
[1] == 'o' && param
[2] == '-') {
875 if (param
[0] != '+' && param
[0] != '-') {
876 nasm_error(ERR_NONFATAL
| ERR_NOFILE
| ERR_USAGE
,
877 "invalid option to `-w'");
880 do_warn
= (param
[0] == '+');
884 for (i
= 0; i
<= ERR_WARN_MAX
; i
++) {
885 if (!nasm_stricmp(param
, warnings
[i
].name
))
888 if (i
<= ERR_WARN_MAX
) {
889 warning_on_global
[i
] = do_warn
;
890 } else if (!nasm_stricmp(param
, "all")) {
891 for (i
= 1; i
<= ERR_WARN_MAX
; i
++)
892 warning_on_global
[i
] = do_warn
;
893 } else if (!nasm_stricmp(param
, "none")) {
894 for (i
= 1; i
<= ERR_WARN_MAX
; i
++)
895 warning_on_global
[i
] = !do_warn
;
897 /* Ignore invalid warning names; forward compatibility */
904 operating_mode
= OP_DEPEND
;
907 operating_mode
= OP_DEPEND
;
908 depend_missing_ok
= true;
911 depend_emit_phony
= true;
914 operating_mode
= OP_NORMAL
;
927 depend_target
= quote_for_make(q
);
931 nasm_error(ERR_NONFATAL
|ERR_NOFILE
|ERR_USAGE
,
932 "unknown dependency option `-M%c'", p
[2]);
935 if (advance
&& (!q
|| !q
[0])) {
936 nasm_error(ERR_NONFATAL
|ERR_NOFILE
|ERR_USAGE
,
937 "option `-M%c' requires a parameter", p
[2]);
946 if (p
[2] == 0) { /* -- => stop processing options */
951 if (!nasm_stricmp(p
, "--v"))
954 for (s
= 0; textopts
[s
].label
; s
++) {
955 if (!nasm_stricmp(p
+ 2, textopts
[s
].label
)) {
966 nasm_error(ERR_NONFATAL
| ERR_NOFILE
|
968 "option `--%s' requires an argument",
972 advance
= 1, param
= q
;
977 strlcpy(lprefix
, param
, PREFIX_MAX
);
980 strlcpy(lpostfix
, param
, POSTFIX_MAX
);
983 nasm_panic(ERR_NOFILE
,
992 nasm_error(ERR_NONFATAL
| ERR_NOFILE
| ERR_USAGE
,
993 "unrecognised option `--%s'", p
+ 2);
1001 if (!ofmt
->setinfo(GI_SWITCH
, &p
))
1002 nasm_error(ERR_NONFATAL
| ERR_NOFILE
| ERR_USAGE
,
1003 "unrecognised option `-%c'", p
[1]);
1008 nasm_error(ERR_NONFATAL
| ERR_NOFILE
| ERR_USAGE
,
1009 "more than one input file specified");
1011 copy_filename(inname
, p
);
1018 #define ARG_BUF_DELTA 128
1020 static void process_respfile(FILE * rfile
)
1022 char *buffer
, *p
, *q
, *prevarg
;
1023 int bufsize
, prevargsize
;
1025 bufsize
= prevargsize
= ARG_BUF_DELTA
;
1026 buffer
= nasm_malloc(ARG_BUF_DELTA
);
1027 prevarg
= nasm_malloc(ARG_BUF_DELTA
);
1030 while (1) { /* Loop to handle all lines in file */
1032 while (1) { /* Loop to handle long lines */
1033 q
= fgets(p
, bufsize
- (p
- buffer
), rfile
);
1037 if (p
> buffer
&& p
[-1] == '\n')
1039 if (p
- buffer
> bufsize
- 10) {
1041 offset
= p
- buffer
;
1042 bufsize
+= ARG_BUF_DELTA
;
1043 buffer
= nasm_realloc(buffer
, bufsize
);
1044 p
= buffer
+ offset
;
1048 if (!q
&& p
== buffer
) {
1050 process_arg(prevarg
, NULL
);
1057 * Play safe: remove CRs, LFs and any spurious ^Zs, if any of
1058 * them are present at the end of the line.
1060 *(p
= &buffer
[strcspn(buffer
, "\r\n\032")]) = '\0';
1062 while (p
> buffer
&& nasm_isspace(p
[-1]))
1065 p
= nasm_skip_spaces(buffer
);
1067 if (process_arg(prevarg
, p
))
1070 if ((int) strlen(p
) > prevargsize
- 10) {
1071 prevargsize
+= ARG_BUF_DELTA
;
1072 prevarg
= nasm_realloc(prevarg
, prevargsize
);
1074 strncpy(prevarg
, p
, prevargsize
);
1078 /* Function to process args from a string of args, rather than the
1079 * argv array. Used by the environment variable and response file
1082 static void process_args(char *args
)
1084 char *p
, *q
, *arg
, *prevarg
;
1085 char separator
= ' ';
1088 if (*p
&& *p
!= '-')
1093 while (*p
&& *p
!= separator
)
1095 while (*p
== separator
)
1099 if (process_arg(prevarg
, arg
))
1103 process_arg(arg
, NULL
);
1106 static void process_response_file(const char *file
)
1109 FILE *f
= fopen(file
, "r");
1114 while (fgets(str
, sizeof str
, f
)) {
1120 static void parse_cmdline(int argc
, char **argv
)
1123 char *envreal
, *envcopy
= NULL
, *p
;
1126 *inname
= *outname
= *listname
= *errname
= '\0';
1128 for (i
= 0; i
<= ERR_WARN_MAX
; i
++)
1129 warning_on_global
[i
] = warnings
[i
].enabled
;
1132 * First, process the NASMENV environment variable.
1134 envreal
= getenv("NASMENV");
1136 envcopy
= nasm_strdup(envreal
);
1137 process_args(envcopy
);
1142 * Now process the actual command line.
1147 if (argv
[0][0] == '@') {
1149 * We have a response file, so process this as a set of
1150 * arguments like the environment variable. This allows us
1151 * to have multiple arguments on a single line, which is
1152 * different to the -@resp file processing below for regular
1155 process_response_file(argv
[0]+1);
1159 if (!stopoptions
&& argv
[0][0] == '-' && argv
[0][1] == '@') {
1160 p
= get_param(argv
[0], argc
> 1 ? argv
[1] : NULL
, &advance
);
1162 rfile
= fopen(p
, "r");
1164 process_respfile(rfile
);
1167 nasm_error(ERR_NONFATAL
| ERR_NOFILE
| ERR_USAGE
,
1168 "unable to open response file `%s'", p
);
1171 advance
= process_arg(argv
[0], argc
> 1 ? argv
[1] : NULL
);
1172 argv
+= advance
, argc
-= advance
;
1176 * Look for basic command line typos. This definitely doesn't
1177 * catch all errors, but it might help cases of fumbled fingers.
1180 nasm_error(ERR_NONFATAL
| ERR_NOFILE
| ERR_USAGE
,
1181 "no input file specified");
1182 else if (!strcmp(inname
, errname
) ||
1183 !strcmp(inname
, outname
) ||
1184 !strcmp(inname
, listname
) ||
1185 (depend_file
&& !strcmp(inname
, depend_file
)))
1186 nasm_fatal(ERR_NOFILE
| ERR_USAGE
,
1187 "file `%s' is both input and output file",
1191 error_file
= fopen(errname
, "w");
1193 error_file
= stderr
; /* Revert to default! */
1194 nasm_fatal(ERR_NOFILE
| ERR_USAGE
,
1195 "cannot open file `%s' for error messages",
1201 static enum directives
getkw(char **directive
, char **value
);
1203 static void assemble_file(char *fname
, StrList
**depend_ptr
)
1205 char *directive
, *value
, *p
, *q
, *special
, *line
;
1211 struct tokenval tokval
;
1215 if (cmd_sb
== 32 && iflag_ffs(&cmd_cpu
) < IF_386
)
1216 nasm_fatal(0, "command line: 32-bit segment size requires a higher cpu");
1218 pass_max
= prev_offset_changed
= (INT_MAX
>> 1) + 2; /* Almost unlimited */
1219 for (passn
= 1; pass0
<= 2; passn
++) {
1223 pass1
= pass0
== 2 ? 2 : 1; /* 1, 1, 1, ..., 1, 2 */
1224 pass2
= passn
> 1 ? 2 : 1; /* 1, 2, 2, ..., 2, 2 */
1225 /* pass0 0, 0, 0, ..., 1, 2 */
1227 def_label
= passn
> 1 ? redefine_label
: define_label
;
1229 globalbits
= sb
= cmd_sb
; /* set 'bits' to command line default */
1232 lfmt
->init(listname
);
1235 global_offset_changed
= 0; /* set by redefine_label */
1236 location
.segment
= ofmt
->section(NULL
, pass2
, &sb
);
1239 saa_rewind(forwrefs
);
1240 forwref
= saa_rstruct(forwrefs
);
1242 offsets
= raa_init();
1244 preproc
->reset(fname
, pass1
, pass1
== 2 ? depend_ptr
: NULL
);
1245 memcpy(warning_on
, warning_on_global
, (ERR_WARN_MAX
+1) * sizeof(bool));
1249 location
.known
= true;
1250 location
.offset
= offs
= get_curr_offs();
1252 while ((line
= preproc
->getline())) {
1257 * Here we parse our directives; this is not handled by the
1258 * 'real' parser. This really should be a separate function.
1261 d
= getkw(&directive
, &value
);
1266 case D_SEGMENT
: /* [SEGMENT n] */
1268 seg
= ofmt
->section(value
, pass2
, &sb
);
1269 if (seg
== NO_SEG
) {
1270 nasm_error(pass1
== 1 ? ERR_NONFATAL
: ERR_PANIC
,
1271 "segment name `%s' not recognized",
1275 location
.segment
= seg
;
1278 case D_SECTALIGN
: /* [SECTALIGN n] */
1282 tokval
.t_type
= TOKEN_INVALID
;
1283 e
= evaluate(stdscan
, NULL
, &tokval
, NULL
, pass2
, NULL
);
1285 unsigned int align
= (unsigned int)e
->value
;
1286 if ((uint64_t)e
->value
> 0x7fffffff) {
1288 * FIXME: Please make some sane message here
1289 * ofmt should have some 'check' method which
1290 * would report segment alignment bounds.
1293 "incorrect segment alignment `%s'", value
);
1294 } else if (!is_power2(align
)) {
1295 nasm_error(ERR_NONFATAL
,
1296 "segment alignment `%s' is not power of two",
1300 /* callee should be able to handle all details */
1301 if (location
.segment
!= NO_SEG
)
1302 ofmt
->sectalign(location
.segment
, align
);
1306 case D_EXTERN
: /* [EXTERN label:special] */
1308 value
++; /* skip initial $ if present */
1311 while (*q
&& *q
!= ':')
1315 ofmt
->symdef(value
, 0L, 0L, 3, q
);
1317 } else if (passn
== 1) {
1322 while (*q
&& *q
!= ':') {
1328 nasm_error(ERR_NONFATAL
,
1329 "identifier expected after EXTERN");
1337 if (!is_extern(value
)) { /* allow re-EXTERN to be ignored */
1339 pass0
= 1; /* fake pass 1 in labels.c */
1340 declare_as_global(value
, special
);
1341 define_label(value
, seg_alloc(), 0L, NULL
,
1345 } /* else pass0 == 1 */
1347 case D_BITS
: /* [BITS bits] */
1348 globalbits
= sb
= get_bits(value
);
1350 case D_GLOBAL
: /* [GLOBAL symbol:special] */
1352 value
++; /* skip initial $ if present */
1353 if (pass0
== 2) { /* pass 2 */
1355 while (*q
&& *q
!= ':')
1359 ofmt
->symdef(value
, 0L, 0L, 3, q
);
1361 } else if (pass2
== 1) { /* pass == 1 */
1366 while (*q
&& *q
!= ':') {
1372 nasm_error(ERR_NONFATAL
,
1373 "identifier expected after GLOBAL");
1381 declare_as_global(value
, special
);
1384 case D_COMMON
: /* [COMMON symbol size:special] */
1389 value
++; /* skip initial $ if present */
1394 while (*p
&& !nasm_isspace(*p
)) {
1400 nasm_error(ERR_NONFATAL
,
1401 "identifier expected after COMMON");
1405 p
= nasm_zap_spaces_fwd(p
);
1407 while (*q
&& *q
!= ':')
1415 size
= readnum(p
, &rn_error
);
1417 nasm_error(ERR_NONFATAL
,
1418 "invalid size specified"
1419 " in COMMON declaration");
1423 nasm_error(ERR_NONFATAL
,
1424 "no size specified in"
1425 " COMMON declaration");
1430 define_common(value
, seg_alloc(), size
, special
);
1431 } else if (pass0
== 2) {
1433 ofmt
->symdef(value
, 0L, 0L, 3, special
);
1437 case D_ABSOLUTE
: /* [ABSOLUTE address] */
1440 tokval
.t_type
= TOKEN_INVALID
;
1441 e
= evaluate(stdscan
, NULL
, &tokval
, NULL
, pass2
, NULL
);
1445 1 ? ERR_NONFATAL
: ERR_PANIC
,
1446 "cannot use non-relocatable expression as "
1447 "ABSOLUTE address");
1449 abs_seg
= reloc_seg(e
);
1450 abs_offset
= reloc_value(e
);
1452 } else if (passn
== 1)
1453 abs_offset
= 0x100; /* don't go near zero in case of / */
1455 nasm_panic(0, "invalid ABSOLUTE address "
1458 location
.segment
= NO_SEG
;
1460 case D_DEBUG
: /* [DEBUG] */
1463 bool badid
, overlong
;
1467 badid
= overlong
= false;
1468 if (!isidstart(*p
)) {
1471 while (*p
&& !nasm_isspace(*p
)) {
1472 if (q
>= debugid
+ sizeof debugid
- 1) {
1483 nasm_error(passn
== 1 ? ERR_NONFATAL
: ERR_PANIC
,
1484 "identifier expected after DEBUG");
1488 nasm_error(passn
== 1 ? ERR_NONFATAL
: ERR_PANIC
,
1489 "DEBUG identifier too long");
1492 p
= nasm_skip_spaces(p
);
1494 dfmt
->debug_directive(debugid
, p
);
1497 case D_WARNING
: /* [WARNING {+|-|*}warn-name] */
1498 value
= nasm_skip_spaces(value
);
1500 case '-': validid
= 0; value
++; break;
1501 case '+': validid
= 1; value
++; break;
1502 case '*': validid
= 2; value
++; break;
1503 default: validid
= 1; break;
1506 for (i
= 1; i
<= ERR_WARN_MAX
; i
++)
1507 if (!nasm_stricmp(value
, warnings
[i
].name
))
1509 if (i
<= ERR_WARN_MAX
) {
1512 warning_on
[i
] = false;
1515 warning_on
[i
] = true;
1518 warning_on
[i
] = warning_on_global
[i
];
1523 case D_CPU
: /* [CPU] */
1524 cpu
= get_cpu(value
);
1526 case D_LIST
: /* [LIST {+|-}] */
1527 value
= nasm_skip_spaces(value
);
1528 if (*value
== '+') {
1531 if (*value
== '-') {
1538 case D_DEFAULT
: /* [DEFAULT] */
1541 tokval
.t_type
= TOKEN_INVALID
;
1542 if (stdscan(NULL
, &tokval
) != TOKEN_INVALID
) {
1543 switch ((int)tokval
.t_integer
) {
1565 if (float_option(value
)) {
1566 nasm_error(pass1
== 1 ? ERR_NONFATAL
: ERR_PANIC
,
1567 "unknown 'float' directive: %s",
1572 if (ofmt
->directive(d
, value
, pass2
))
1574 /* else fall through */
1576 nasm_error(pass1
== 1 ? ERR_NONFATAL
: ERR_PANIC
,
1577 "unrecognised directive [%s]",
1582 nasm_error(ERR_NONFATAL
,
1583 "invalid parameter to [%s] directive",
1586 } else { /* it isn't a directive */
1587 parse_line(pass1
, line
, &output_ins
, def_label
);
1589 if (optimizing
> 0) {
1590 if (forwref
!= NULL
&& globallineno
== forwref
->lineno
) {
1591 output_ins
.forw_ref
= true;
1593 output_ins
.oprs
[forwref
->operand
].opflags
|= OPFLAG_FORWARD
;
1594 forwref
= saa_rstruct(forwrefs
);
1595 } while (forwref
!= NULL
1596 && forwref
->lineno
== globallineno
);
1598 output_ins
.forw_ref
= false;
1600 if (output_ins
.forw_ref
) {
1602 for (i
= 0; i
< output_ins
.operands
; i
++) {
1603 if (output_ins
.oprs
[i
].opflags
& OPFLAG_FORWARD
) {
1604 struct forwrefinfo
*fwinf
= (struct forwrefinfo
*)saa_wstruct(forwrefs
);
1605 fwinf
->lineno
= globallineno
;
1614 if (output_ins
.opcode
== I_EQU
) {
1617 * Special `..' EQUs get processed in pass two,
1618 * except `..@' macro-processor EQUs which are done
1619 * in the normal place.
1621 if (!output_ins
.label
)
1622 nasm_error(ERR_NONFATAL
,
1623 "EQU not preceded by label");
1625 else if (output_ins
.label
[0] != '.' ||
1626 output_ins
.label
[1] != '.' ||
1627 output_ins
.label
[2] == '@') {
1628 if (output_ins
.operands
== 1 &&
1629 (output_ins
.oprs
[0].type
& IMMEDIATE
) &&
1630 output_ins
.oprs
[0].wrt
== NO_SEG
) {
1631 bool isext
= !!(output_ins
.oprs
[0].opflags
& OPFLAG_EXTERN
);
1632 def_label(output_ins
.label
,
1633 output_ins
.oprs
[0].segment
,
1634 output_ins
.oprs
[0].offset
, NULL
,
1636 } else if (output_ins
.operands
== 2
1637 && (output_ins
.oprs
[0].type
& IMMEDIATE
)
1638 && (output_ins
.oprs
[0].type
& COLON
)
1639 && output_ins
.oprs
[0].segment
== NO_SEG
1640 && output_ins
.oprs
[0].wrt
== NO_SEG
1641 && (output_ins
.oprs
[1].type
& IMMEDIATE
)
1642 && output_ins
.oprs
[1].segment
== NO_SEG
1643 && output_ins
.oprs
[1].wrt
== NO_SEG
) {
1644 def_label(output_ins
.label
,
1645 output_ins
.oprs
[0].offset
| SEG_ABS
,
1646 output_ins
.oprs
[1].offset
,
1647 NULL
, false, false);
1649 nasm_error(ERR_NONFATAL
,
1650 "bad syntax for EQU");
1654 * Special `..' EQUs get processed here, except
1655 * `..@' macro processor EQUs which are done above.
1657 if (output_ins
.label
[0] == '.' &&
1658 output_ins
.label
[1] == '.' &&
1659 output_ins
.label
[2] != '@') {
1660 if (output_ins
.operands
== 1 &&
1661 (output_ins
.oprs
[0].type
& IMMEDIATE
)) {
1662 define_label(output_ins
.label
,
1663 output_ins
.oprs
[0].segment
,
1664 output_ins
.oprs
[0].offset
,
1665 NULL
, false, false);
1666 } else if (output_ins
.operands
== 2
1667 && (output_ins
.oprs
[0].type
& IMMEDIATE
)
1668 && (output_ins
.oprs
[0].type
& COLON
)
1669 && output_ins
.oprs
[0].segment
== NO_SEG
1670 && (output_ins
.oprs
[1].type
& IMMEDIATE
)
1671 && output_ins
.oprs
[1].segment
== NO_SEG
) {
1672 define_label(output_ins
.label
,
1673 output_ins
.oprs
[0].offset
| SEG_ABS
,
1674 output_ins
.oprs
[1].offset
,
1675 NULL
, false, false);
1677 nasm_error(ERR_NONFATAL
,
1678 "bad syntax for EQU");
1681 } else { /* instruction isn't an EQU */
1685 int64_t l
= insn_size(location
.segment
, offs
, sb
, cpu
,
1688 /* if (using_debug_info) && output_ins.opcode != -1) */
1689 if (using_debug_info
)
1690 { /* fbk 03/25/01 */
1691 /* this is done here so we can do debug type info */
1693 TYS_ELEMENTS(output_ins
.operands
);
1694 switch (output_ins
.opcode
) {
1697 TYS_ELEMENTS(output_ins
.oprs
[0].offset
) | TY_BYTE
;
1701 TYS_ELEMENTS(output_ins
.oprs
[0].offset
) | TY_WORD
;
1705 TYS_ELEMENTS(output_ins
.oprs
[0].offset
) | TY_DWORD
;
1709 TYS_ELEMENTS(output_ins
.oprs
[0].offset
) | TY_QWORD
;
1713 TYS_ELEMENTS(output_ins
.oprs
[0].offset
) | TY_TBYTE
;
1717 TYS_ELEMENTS(output_ins
.oprs
[0].offset
) | TY_OWORD
;
1721 TYS_ELEMENTS(output_ins
.oprs
[0].offset
) | TY_YWORD
;
1724 typeinfo
|= TY_BYTE
;
1727 typeinfo
|= TY_WORD
;
1730 if (output_ins
.eops_float
)
1731 typeinfo
|= TY_FLOAT
;
1733 typeinfo
|= TY_DWORD
;
1736 typeinfo
|= TY_QWORD
;
1739 typeinfo
|= TY_TBYTE
;
1742 typeinfo
|= TY_OWORD
;
1745 typeinfo
|= TY_YWORD
;
1748 typeinfo
= TY_LABEL
;
1752 dfmt
->debug_typevalue(typeinfo
);
1756 set_curr_offs(offs
);
1759 * else l == -1 => invalid instruction, which will be
1760 * flagged as an error on pass 2
1764 offs
+= assemble(location
.segment
, offs
, sb
, cpu
,
1766 set_curr_offs(offs
);
1770 cleanup_insn(&output_ins
);
1773 location
.offset
= offs
= get_curr_offs();
1774 } /* end while (line = preproc->getline... */
1776 if (pass0
== 2 && global_offset_changed
&& !terminate_after_phase
)
1777 nasm_error(ERR_NONFATAL
,
1778 "phase error detected at end of assembly.");
1781 preproc
->cleanup(1);
1783 if ((passn
> 1 && !global_offset_changed
) || pass0
== 2) {
1785 } else if (global_offset_changed
&&
1786 global_offset_changed
< prev_offset_changed
) {
1787 prev_offset_changed
= global_offset_changed
;
1793 if (terminate_after_phase
)
1796 if ((stall_count
> 997) || (passn
>= pass_max
)) {
1797 /* We get here if the labels don't converge
1798 * Example: FOO equ FOO + 1
1800 nasm_error(ERR_NONFATAL
,
1801 "Can't find valid values for all labels "
1802 "after %d passes, giving up.", passn
);
1803 nasm_error(ERR_NONFATAL
,
1804 "Possible causes: recursive EQUs, macro abuse.");
1809 preproc
->cleanup(0);
1811 if (!terminate_after_phase
&& opt_verbose_info
) {
1812 /* -On and -Ov switches */
1813 fprintf(stdout
, "info: assembly required 1+%d+1 passes\n", passn
-3);
1817 static enum directives
getkw(char **directive
, char **value
)
1821 buf
= nasm_skip_spaces(*directive
);
1823 /* it should be enclosed in [ ] */
1826 q
= strchr(buf
, ']');
1830 /* stip off the comments */
1831 p
= strchr(buf
, ';');
1833 if (p
< q
) /* ouch! somwhere inside */
1838 /* no brace, no trailing spaces */
1840 nasm_zap_spaces_rev(--q
);
1843 p
= nasm_skip_spaces(++buf
);
1844 q
= nasm_skip_word(p
);
1846 return D_none
; /* sigh... no value there */
1850 /* and value finally */
1851 p
= nasm_skip_spaces(++q
);
1854 return find_directive(*directive
);
1858 * gnu style error reporting
1859 * This function prints an error message to error_file in the
1860 * style used by GNU. An example would be:
1861 * file.asm:50: error: blah blah blah
1862 * where file.asm is the name of the file, 50 is the line number on
1863 * which the error occurs (or is detected) and "error:" is one of
1864 * the possible optional diagnostics -- it can be "error" or "warning"
1865 * or something else. Finally the line terminates with the actual
1868 * @param severity the severity of the warning or error
1869 * @param fmt the printf style format string
1871 static void nasm_verror_gnu(int severity
, const char *fmt
, va_list ap
)
1873 const char *currentfile
= NULL
;
1876 if (is_suppressed_warning(severity
))
1879 if (!(severity
& ERR_NOFILE
))
1880 src_get(&lineno
, ¤tfile
);
1882 if (!skip_this_pass(severity
)) {
1884 fprintf(error_file
, "%s:%"PRId32
": ", currentfile
, lineno
);
1886 fputs("nasm: ", error_file
);
1890 nasm_verror_common(severity
, fmt
, ap
);
1894 * MS style error reporting
1895 * This function prints an error message to error_file in the
1896 * style used by Visual C and some other Microsoft tools. An example
1898 * file.asm(50) : error: blah blah blah
1899 * where file.asm is the name of the file, 50 is the line number on
1900 * which the error occurs (or is detected) and "error:" is one of
1901 * the possible optional diagnostics -- it can be "error" or "warning"
1902 * or something else. Finally the line terminates with the actual
1905 * @param severity the severity of the warning or error
1906 * @param fmt the printf style format string
1908 static void nasm_verror_vc(int severity
, const char *fmt
, va_list ap
)
1910 const char *currentfile
= NULL
;
1913 if (is_suppressed_warning(severity
))
1916 if (!(severity
& ERR_NOFILE
))
1917 src_get(&lineno
, ¤tfile
);
1919 if (!skip_this_pass(severity
)) {
1921 fprintf(error_file
, "%s(%"PRId32
") : ", currentfile
, lineno
);
1923 fputs("nasm: ", error_file
);
1927 nasm_verror_common(severity
, fmt
, ap
);
1931 * check for supressed warning
1932 * checks for suppressed warning or pass one only warning and we're
1935 * @param severity the severity of the warning or error
1936 * @return true if we should abort error/warning printing
1938 static bool is_suppressed_warning(int severity
)
1940 /* Not a warning at all */
1941 if ((severity
& ERR_MASK
) != ERR_WARNING
)
1944 /* Might be a warning but suppresed explicitly */
1945 if (severity
& ERR_WARN_MASK
)
1946 return !warning_on
[WARN_IDX(severity
)];
1951 static bool skip_this_pass(int severity
)
1953 /* See if it's a pass-specific warning which should be skipped. */
1955 if ((severity
& ERR_MASK
) > ERR_WARNING
)
1959 * passn is 1 on the very first pass only.
1960 * pass0 is 2 on the code-generation (final) pass only.
1961 * These are the passes we care about in this case.
1963 return (((severity
& ERR_PASS1
) && passn
!= 1) ||
1964 ((severity
& ERR_PASS2
) && pass0
!= 2));
1968 * common error reporting
1969 * This is the common back end of the error reporting schemes currently
1970 * implemented. It prints the nature of the warning and then the
1971 * specific error message to error_file and may or may not return. It
1972 * doesn't return if the error severity is a "panic" or "debug" type.
1974 * @param severity the severity of the warning or error
1975 * @param fmt the printf style format string
1977 static void nasm_verror_common(int severity
, const char *fmt
, va_list args
)
1982 switch (severity
& (ERR_MASK
|ERR_NO_SEVERITY
)) {
2003 vsnprintf(msg
, sizeof msg
- 64, fmt
, args
);
2004 if ((severity
& (ERR_WARN_MASK
|ERR_PP_LISTMACRO
)) == ERR_WARN_MASK
) {
2005 char *p
= strchr(msg
, '\0');
2006 snprintf(p
, 64, " [-w+%s]", warnings
[WARN_IDX(severity
)].name
);
2009 if (!skip_this_pass(severity
))
2010 fprintf(error_file
, "%s%s\n", pfx
, msg
);
2012 /* Are we recursing from error_list_macros? */
2013 if (severity
& ERR_PP_LISTMACRO
)
2017 * Don't suppress this with skip_this_pass(), or we don't get
2018 * pass1 or preprocessor warnings in the list file
2020 if ((severity
& ERR_MASK
) >= ERR_WARNING
)
2021 lfmt
->error(severity
, pfx
, msg
);
2023 if (severity
& ERR_USAGE
)
2026 preproc
->error_list_macros(severity
);
2028 switch (severity
& ERR_MASK
) {
2030 /* no further action, by definition */
2033 /* Treat warnings as errors */
2034 if (warning_on
[WARN_IDX(ERR_WARN_TERM
)])
2035 terminate_after_phase
= true;
2038 terminate_after_phase
= true;
2048 exit(1); /* instantly die */
2049 break; /* placate silly compilers */
2052 /* abort(); */ /* halt, catch fire, and dump core */
2063 static void usage(void)
2065 fputs("type `nasm -h' for help\n", error_file
);
2068 static iflag_t
get_cpu(char *value
)
2072 iflag_clear_all(&r
);
2074 if (!strcmp(value
, "8086"))
2075 iflag_set(&r
, IF_8086
);
2076 else if (!strcmp(value
, "186"))
2077 iflag_set(&r
, IF_186
);
2078 else if (!strcmp(value
, "286"))
2079 iflag_set(&r
, IF_286
);
2080 else if (!strcmp(value
, "386"))
2081 iflag_set(&r
, IF_386
);
2082 else if (!strcmp(value
, "486"))
2083 iflag_set(&r
, IF_486
);
2084 else if (!strcmp(value
, "586") ||
2085 !nasm_stricmp(value
, "pentium"))
2086 iflag_set(&r
, IF_PENT
);
2087 else if (!strcmp(value
, "686") ||
2088 !nasm_stricmp(value
, "ppro") ||
2089 !nasm_stricmp(value
, "pentiumpro") ||
2090 !nasm_stricmp(value
, "p2"))
2091 iflag_set(&r
, IF_P6
);
2092 else if (!nasm_stricmp(value
, "p3") ||
2093 !nasm_stricmp(value
, "katmai"))
2094 iflag_set(&r
, IF_KATMAI
);
2095 else if (!nasm_stricmp(value
, "p4") || /* is this right? -- jrc */
2096 !nasm_stricmp(value
, "willamette"))
2097 iflag_set(&r
, IF_WILLAMETTE
);
2098 else if (!nasm_stricmp(value
, "prescott"))
2099 iflag_set(&r
, IF_PRESCOTT
);
2100 else if (!nasm_stricmp(value
, "x64") ||
2101 !nasm_stricmp(value
, "x86-64"))
2102 iflag_set(&r
, IF_X86_64
);
2103 else if (!nasm_stricmp(value
, "ia64") ||
2104 !nasm_stricmp(value
, "ia-64") ||
2105 !nasm_stricmp(value
, "itanium")||
2106 !nasm_stricmp(value
, "itanic") ||
2107 !nasm_stricmp(value
, "merced"))
2108 iflag_set(&r
, IF_IA64
);
2110 iflag_set(&r
, IF_PLEVEL
);
2111 nasm_error(pass0
< 2 ? ERR_NONFATAL
: ERR_FATAL
,
2112 "unknown 'cpu' type");
2117 static int get_bits(char *value
)
2121 if ((i
= atoi(value
)) == 16)
2122 return i
; /* set for a 16-bit segment */
2124 if (iflag_ffs(&cpu
) < IF_386
) {
2125 nasm_error(ERR_NONFATAL
,
2126 "cannot specify 32-bit segment on processor below a 386");
2129 } else if (i
== 64) {
2130 if (iflag_ffs(&cpu
) < IF_X86_64
) {
2131 nasm_error(ERR_NONFATAL
,
2132 "cannot specify 64-bit segment on processor below an x86-64");
2136 nasm_error(pass0
< 2 ? ERR_NONFATAL
: ERR_FATAL
,
2137 "`%s' is not a valid segment size; must be 16, 32 or 64",