mirror of
https://github.com/netwide-assembler/nasm.git
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2072 lines
70 KiB
C
2072 lines
70 KiB
C
/* ----------------------------------------------------------------------- *
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*
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* Copyright 1996-2012 The NASM Authors - All Rights Reserved
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* See the file AUTHORS included with the NASM distribution for
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* the specific copyright holders.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following
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* conditions are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
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* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
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* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* ----------------------------------------------------------------------- */
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/*
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* The Netwide Assembler main program module
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*/
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#include "compiler.h"
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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 <limits.h>
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#include <time.h>
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#include "nasm.h"
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#include "nasmlib.h"
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#include "saa.h"
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#include "raa.h"
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#include "float.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 "output/outform.h"
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#include "listing.h"
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/*
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* This is the maximum number of optimization passes to do. If we ever
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* find a case where the optimizer doesn't naturally converge, we might
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* have to drop this value so the assembler doesn't appear to just hang.
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*/
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#define MAX_OPTIMIZE (INT_MAX >> 1)
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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 *, StrList **);
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static void nasm_verror_gnu(int severity, const char *fmt, va_list args);
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static void nasm_verror_vc(int severity, const char *fmt, va_list args);
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static void nasm_verror_common(int severity, const char *fmt, va_list args);
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static bool is_suppressed_warning(int severity);
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static void usage(void);
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static int using_debug_info, opt_verbose_info;
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bool tasm_compatible_mode = false;
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int pass0, passn;
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int maxbits = 0;
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int globalrel = 0;
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static time_t official_compile_time;
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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 char errname[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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struct ofmt *ofmt = &OF_DEFAULT;
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struct ofmt_alias *ofmt_alias = NULL;
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const struct dfmt *dfmt;
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static FILE *error_file; /* Where to write error messages */
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FILE *ofile = NULL;
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int optimizing = MAX_OPTIMIZE; /* 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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int64_t global_offset_changed; /* referenced in labels.c */
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int64_t prev_offset_changed;
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int32_t stall_count;
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static struct location 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 const struct forwrefinfo *forwref;
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static struct preproc_ops *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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};
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static enum op_type operating_mode;
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/* Dependency flags */
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static bool depend_emit_phony = false;
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static bool depend_missing_ok = false;
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static const char *depend_target = NULL;
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static const char *depend_file = NULL;
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/*
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* Which of the suppressible warnings are suppressed. Entry zero
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* isn't an actual warning, but it used for -w+error/-Werror.
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*/
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static bool warning_on[ERR_WARN_MAX+1]; /* Current state */
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static bool warning_on_global[ERR_WARN_MAX+1]; /* Command-line state */
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static const struct warning {
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const char *name;
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const char *help;
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bool enabled;
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} warnings[ERR_WARN_MAX+1] = {
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{"error", "treat warnings as errors", false},
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{"macro-params", "macro calls with wrong parameter count", true},
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{"macro-selfref", "cyclic macro references", false},
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{"macro-defaults", "macros with more default than optional parameters", true},
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{"orphan-labels", "labels alone on lines without trailing `:'", true},
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{"number-overflow", "numeric constant does not fit", true},
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{"gnu-elf-extensions", "using 8- or 16-bit relocation in ELF32, a GNU extension", false},
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{"float-overflow", "floating point overflow", true},
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{"float-denorm", "floating point denormal", false},
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{"float-underflow", "floating point underflow", false},
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{"float-toolong", "too many digits in floating-point number", true},
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{"user", "%warning directives", true},
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{"lock", "lock prefix on unlockable instructions", true},
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{"hle", "invalid hle prefixes", true},
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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 bool want_usage;
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static bool terminate_after_phase;
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int user_nolist = 0; /* fbk 9/2/00 */
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static char *quote_for_make(const char *str);
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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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putc('\n', outfile);
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} else
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puts(line);
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}
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/* Convert a struct tm to a POSIX-style time constant */
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static int64_t posix_mktime(struct tm *tm)
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{
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int64_t t;
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int64_t y = tm->tm_year;
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/* See IEEE 1003.1:2004, section 4.14 */
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t = (y-70)*365 + (y-69)/4 - (y-1)/100 + (y+299)/400;
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t += tm->tm_yday;
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t *= 24;
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t += tm->tm_hour;
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t *= 60;
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t += tm->tm_min;
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t *= 60;
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t += tm->tm_sec;
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return t;
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}
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static void define_macros_early(void)
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{
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char temp[128];
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struct tm lt, *lt_p, gm, *gm_p;
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int64_t posix_time;
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lt_p = localtime(&official_compile_time);
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if (lt_p) {
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lt = *lt_p;
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strftime(temp, sizeof temp, "__DATE__=\"%Y-%m-%d\"", <);
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preproc->pre_define(temp);
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strftime(temp, sizeof temp, "__DATE_NUM__=%Y%m%d", <);
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preproc->pre_define(temp);
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strftime(temp, sizeof temp, "__TIME__=\"%H:%M:%S\"", <);
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preproc->pre_define(temp);
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strftime(temp, sizeof temp, "__TIME_NUM__=%H%M%S", <);
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preproc->pre_define(temp);
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}
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gm_p = gmtime(&official_compile_time);
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if (gm_p) {
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gm = *gm_p;
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strftime(temp, sizeof temp, "__UTC_DATE__=\"%Y-%m-%d\"", &gm);
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preproc->pre_define(temp);
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strftime(temp, sizeof temp, "__UTC_DATE_NUM__=%Y%m%d", &gm);
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preproc->pre_define(temp);
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strftime(temp, sizeof temp, "__UTC_TIME__=\"%H:%M:%S\"", &gm);
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preproc->pre_define(temp);
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strftime(temp, sizeof temp, "__UTC_TIME_NUM__=%H%M%S", &gm);
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preproc->pre_define(temp);
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}
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if (gm_p)
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posix_time = posix_mktime(&gm);
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else if (lt_p)
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posix_time = posix_mktime(<);
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else
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posix_time = 0;
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if (posix_time) {
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snprintf(temp, sizeof temp, "__POSIX_TIME__=%"PRId64, posix_time);
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preproc->pre_define(temp);
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}
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}
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static void define_macros_late(void)
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{
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char temp[128];
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/*
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* In case if output format is defined by alias
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* we have to put shortname of the alias itself here
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* otherwise ABI backward compatibility gets broken.
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*/
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snprintf(temp, sizeof(temp), "__OUTPUT_FORMAT__=%s",
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ofmt_alias ? ofmt_alias->shortname : ofmt->shortname);
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preproc->pre_define(temp);
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}
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static void emit_dependencies(StrList *list)
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{
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FILE *deps;
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int linepos, len;
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StrList *l, *nl;
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if (depend_file && strcmp(depend_file, "-")) {
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deps = fopen(depend_file, "w");
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if (!deps) {
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nasm_error(ERR_NONFATAL|ERR_NOFILE|ERR_USAGE,
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"unable to write dependency file `%s'", depend_file);
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return;
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}
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} else {
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deps = stdout;
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}
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linepos = fprintf(deps, "%s:", depend_target);
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list_for_each(l, list) {
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char *file = quote_for_make(l->str);
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len = strlen(file);
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if (linepos + len > 62 && linepos > 1) {
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fprintf(deps, " \\\n ");
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linepos = 1;
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}
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fprintf(deps, " %s", file);
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linepos += len+1;
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nasm_free(file);
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}
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fprintf(deps, "\n\n");
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list_for_each_safe(l, nl, list) {
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if (depend_emit_phony)
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fprintf(deps, "%s:\n\n", l->str);
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nasm_free(l);
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}
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if (deps != stdout)
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fclose(deps);
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}
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int main(int argc, char **argv)
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{
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StrList *depend_list = NULL, **depend_ptr;
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time(&official_compile_time);
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pass0 = 0;
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want_usage = terminate_after_phase = false;
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nasm_set_verror(nasm_verror_gnu);
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error_file = stderr;
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tolower_init();
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nasm_init_malloc_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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/* Define some macros dependent on the runtime, but not
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on the command line. */
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define_macros_early();
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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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preproc->extra_stdmac(ofmt->stdmac);
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parser_global_info(&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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define_macros_late();
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depend_ptr = (depend_file || (operating_mode == op_depend)) ? &depend_list : NULL;
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if (!depend_target)
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depend_target = quote_for_make(outname);
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switch (operating_mode) {
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case op_depend:
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{
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char *line;
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if (depend_missing_ok)
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preproc->include_path(NULL); /* "assume generated" */
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preproc->reset(inname, 0, &nasmlist, depend_ptr);
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if (outname[0] == '\0')
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ofmt->filename(inname, outname);
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ofile = NULL;
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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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}
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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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nasm_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, 3, &nasmlist, depend_ptr);
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memcpy(warning_on, warning_on_global, (ERR_WARN_MAX+1) * sizeof(bool));
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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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ofile = NULL;
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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);
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ofile = fopen(outname, (ofmt->flags & OFMT_TEXT) ? "w" : "wb");
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if (!ofile) {
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nasm_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();
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dfmt = ofmt->current_dfmt;
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dfmt->init();
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assemble_file(inname, depend_ptr);
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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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fflush(ofile);
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if (ferror(ofile)) {
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nasm_error(ERR_NONFATAL|ERR_NOFILE,
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"write error on output file `%s'", outname);
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}
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}
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if (ofile) {
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fclose(ofile);
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if (terminate_after_phase)
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remove(outname);
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ofile = NULL;
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}
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}
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break;
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}
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if (depend_list && !terminate_after_phase)
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emit_dependencies(depend_list);
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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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return terminate_after_phase;
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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, bool *advance)
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{
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*advance = false;
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if (p[2]) /* the parameter's in the option */
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return nasm_skip_spaces(p + 2);
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if (q && q[0]) {
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*advance = true;
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return q;
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}
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nasm_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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|
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/*
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* Copy a filename
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|
*/
|
|
static void copy_filename(char *dst, const char *src)
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|
{
|
|
size_t len = strlen(src);
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|
|
if (len >= (size_t)FILENAME_MAX) {
|
|
nasm_error(ERR_FATAL | ERR_NOFILE, "file name too long");
|
|
return;
|
|
}
|
|
strncpy(dst, src, FILENAME_MAX);
|
|
}
|
|
|
|
/*
|
|
* Convert a string to Make-safe form
|
|
*/
|
|
static char *quote_for_make(const char *str)
|
|
{
|
|
const char *p;
|
|
char *os, *q;
|
|
|
|
size_t n = 1; /* Terminating zero */
|
|
size_t nbs = 0;
|
|
|
|
if (!str)
|
|
return NULL;
|
|
|
|
for (p = str; *p; p++) {
|
|
switch (*p) {
|
|
case ' ':
|
|
case '\t':
|
|
/* Convert N backslashes + ws -> 2N+1 backslashes + ws */
|
|
n += nbs + 2;
|
|
nbs = 0;
|
|
break;
|
|
case '$':
|
|
case '#':
|
|
nbs = 0;
|
|
n += 2;
|
|
break;
|
|
case '\\':
|
|
nbs++;
|
|
n++;
|
|
break;
|
|
default:
|
|
nbs = 0;
|
|
n++;
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* Convert N backslashes at the end of filename to 2N backslashes */
|
|
if (nbs)
|
|
n += nbs;
|
|
|
|
os = q = nasm_malloc(n);
|
|
|
|
nbs = 0;
|
|
for (p = str; *p; p++) {
|
|
switch (*p) {
|
|
case ' ':
|
|
case '\t':
|
|
while (nbs--)
|
|
*q++ = '\\';
|
|
*q++ = '\\';
|
|
*q++ = *p;
|
|
break;
|
|
case '$':
|
|
*q++ = *p;
|
|
*q++ = *p;
|
|
nbs = 0;
|
|
break;
|
|
case '#':
|
|
*q++ = '\\';
|
|
*q++ = *p;
|
|
nbs = 0;
|
|
break;
|
|
case '\\':
|
|
*q++ = *p;
|
|
nbs++;
|
|
break;
|
|
default:
|
|
*q++ = *p;
|
|
nbs = 0;
|
|
break;
|
|
}
|
|
}
|
|
while (nbs--)
|
|
*q++ = '\\';
|
|
|
|
*q = '\0';
|
|
|
|
return os;
|
|
}
|
|
|
|
struct textargs {
|
|
const char *label;
|
|
int value;
|
|
};
|
|
|
|
#define OPT_PREFIX 0
|
|
#define OPT_POSTFIX 1
|
|
struct textargs textopts[] = {
|
|
{"prefix", OPT_PREFIX},
|
|
{"postfix", OPT_POSTFIX},
|
|
{NULL, 0}
|
|
};
|
|
|
|
static bool stopoptions = false;
|
|
static bool process_arg(char *p, char *q)
|
|
{
|
|
char *param;
|
|
int i;
|
|
bool advance = false;
|
|
bool do_warn;
|
|
|
|
if (!p || !p[0])
|
|
return false;
|
|
|
|
if (p[0] == '-' && !stopoptions) {
|
|
if (strchr("oOfpPdDiIlFXuUZwW", p[1])) {
|
|
/* These parameters take values */
|
|
if (!(param = get_param(p, q, &advance)))
|
|
return advance;
|
|
}
|
|
|
|
switch (p[1]) {
|
|
case 's':
|
|
error_file = stdout;
|
|
break;
|
|
|
|
case 'o': /* output file */
|
|
copy_filename(outname, param);
|
|
break;
|
|
|
|
case 'f': /* output format */
|
|
ofmt = ofmt_find(param, &ofmt_alias);
|
|
if (!ofmt) {
|
|
nasm_error(ERR_FATAL | ERR_NOFILE | ERR_USAGE,
|
|
"unrecognised output format `%s' - "
|
|
"use -hf for a list", param);
|
|
}
|
|
break;
|
|
|
|
case 'O': /* Optimization level */
|
|
{
|
|
int opt;
|
|
|
|
if (!*param) {
|
|
/* Naked -O == -Ox */
|
|
optimizing = MAX_OPTIMIZE;
|
|
} else {
|
|
while (*param) {
|
|
switch (*param) {
|
|
case '0': case '1': case '2': case '3': case '4':
|
|
case '5': case '6': case '7': case '8': case '9':
|
|
opt = strtoul(param, ¶m, 10);
|
|
|
|
/* -O0 -> optimizing == -1, 0.98 behaviour */
|
|
/* -O1 -> optimizing == 0, 0.98.09 behaviour */
|
|
if (opt < 2)
|
|
optimizing = opt - 1;
|
|
else
|
|
optimizing = opt;
|
|
break;
|
|
|
|
case 'v':
|
|
case '+':
|
|
param++;
|
|
opt_verbose_info = true;
|
|
break;
|
|
|
|
case 'x':
|
|
param++;
|
|
optimizing = MAX_OPTIMIZE;
|
|
break;
|
|
|
|
default:
|
|
nasm_error(ERR_FATAL,
|
|
"unknown optimization option -O%c\n",
|
|
*param);
|
|
break;
|
|
}
|
|
}
|
|
if (optimizing > MAX_OPTIMIZE)
|
|
optimizing = MAX_OPTIMIZE;
|
|
}
|
|
break;
|
|
}
|
|
|
|
case 'p': /* pre-include */
|
|
case 'P':
|
|
preproc->pre_include(param);
|
|
break;
|
|
|
|
case 'd': /* pre-define */
|
|
case 'D':
|
|
preproc->pre_define(param);
|
|
break;
|
|
|
|
case 'u': /* un-define */
|
|
case 'U':
|
|
preproc->pre_undefine(param);
|
|
break;
|
|
|
|
case 'i': /* include search path */
|
|
case 'I':
|
|
preproc->include_path(param);
|
|
break;
|
|
|
|
case 'l': /* listing file */
|
|
copy_filename(listname, param);
|
|
break;
|
|
|
|
case 'Z': /* error messages file */
|
|
copy_filename(errname, param);
|
|
break;
|
|
|
|
case 'F': /* specify debug format */
|
|
ofmt->current_dfmt = dfmt_find(ofmt, param);
|
|
if (!ofmt->current_dfmt) {
|
|
nasm_error(ERR_FATAL | ERR_NOFILE | ERR_USAGE,
|
|
"unrecognized debug format `%s' for"
|
|
" output format `%s'",
|
|
param, ofmt->shortname);
|
|
}
|
|
using_debug_info = true;
|
|
break;
|
|
|
|
case 'X': /* specify error reporting format */
|
|
if (nasm_stricmp("vc", param) == 0)
|
|
nasm_set_verror(nasm_verror_vc);
|
|
else if (nasm_stricmp("gnu", param) == 0)
|
|
nasm_set_verror(nasm_verror_gnu);
|
|
else
|
|
nasm_error(ERR_FATAL | ERR_NOFILE | ERR_USAGE,
|
|
"unrecognized error reporting format `%s'",
|
|
param);
|
|
break;
|
|
|
|
case 'g':
|
|
using_debug_info = true;
|
|
break;
|
|
|
|
case 'h':
|
|
printf
|
|
("usage: nasm [-@ response file] [-o outfile] [-f format] "
|
|
"[-l listfile]\n"
|
|
" [options...] [--] filename\n"
|
|
" or nasm -v for version info\n\n"
|
|
" -t assemble in SciTech TASM compatible mode\n"
|
|
" -g generate debug information in selected format\n");
|
|
printf
|
|
(" -E (or -e) preprocess only (writes output to stdout by default)\n"
|
|
" -a don't preprocess (assemble only)\n"
|
|
" -M generate Makefile dependencies on stdout\n"
|
|
" -MG d:o, missing files assumed generated\n"
|
|
" -MF <file> set Makefile dependency file\n"
|
|
" -MD <file> assemble and generate dependencies\n"
|
|
" -MT <file> dependency target name\n"
|
|
" -MQ <file> dependency target name (quoted)\n"
|
|
" -MP emit phony target\n\n"
|
|
" -Z<file> redirect error messages to file\n"
|
|
" -s redirect error messages to stdout\n\n"
|
|
" -F format select a debugging format\n\n"
|
|
" -I<path> adds a pathname to the include file path\n");
|
|
printf
|
|
(" -O<digit> optimize branch offsets\n"
|
|
" -O0: No optimization\n"
|
|
" -O1: Minimal optimization\n"
|
|
" -Ox: Multipass optimization (default)\n\n"
|
|
" -P<file> pre-includes a file\n"
|
|
" -D<macro>[=<value>] pre-defines a macro\n"
|
|
" -U<macro> undefines a macro\n"
|
|
" -X<format> specifies error reporting format (gnu or vc)\n"
|
|
" -w+foo enables warning foo (equiv. -Wfoo)\n"
|
|
" -w-foo disable warning foo (equiv. -Wno-foo)\n\n"
|
|
"--prefix,--postfix\n"
|
|
" this options prepend or append the given argument to all\n"
|
|
" extern and global variables\n\n"
|
|
"Warnings:\n");
|
|
for (i = 0; i <= ERR_WARN_MAX; i++)
|
|
printf(" %-23s %s (default %s)\n",
|
|
warnings[i].name, warnings[i].help,
|
|
warnings[i].enabled ? "on" : "off");
|
|
printf
|
|
("\nresponse files should contain command line parameters"
|
|
", one per line.\n");
|
|
if (p[2] == 'f') {
|
|
printf("\nvalid output formats for -f are"
|
|
" (`*' denotes default):\n");
|
|
ofmt_list(ofmt, stdout);
|
|
} else {
|
|
printf("\nFor a list of valid output formats, use -hf.\n");
|
|
printf("For a list of debug formats, use -f <form> -y.\n");
|
|
}
|
|
exit(0); /* never need usage message here */
|
|
break;
|
|
|
|
case 'y':
|
|
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':
|
|
printf("NASM version %s compiled on %s%s\n",
|
|
nasm_version, nasm_date, nasm_compile_options);
|
|
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 = &preproc_nop;
|
|
break;
|
|
|
|
case 'W':
|
|
if (param[0] == 'n' && param[1] == 'o' && param[2] == '-') {
|
|
do_warn = false;
|
|
param += 3;
|
|
} else {
|
|
do_warn = true;
|
|
}
|
|
goto set_warning;
|
|
|
|
case 'w':
|
|
if (param[0] != '+' && param[0] != '-') {
|
|
nasm_error(ERR_NONFATAL | ERR_NOFILE | ERR_USAGE,
|
|
"invalid option to `-w'");
|
|
break;
|
|
}
|
|
do_warn = (param[0] == '+');
|
|
param++;
|
|
|
|
set_warning:
|
|
for (i = 0; i <= ERR_WARN_MAX; i++) {
|
|
if (!nasm_stricmp(param, warnings[i].name))
|
|
break;
|
|
}
|
|
if (i <= ERR_WARN_MAX) {
|
|
warning_on_global[i] = do_warn;
|
|
} else if (!nasm_stricmp(param, "all")) {
|
|
for (i = 1; i <= ERR_WARN_MAX; i++)
|
|
warning_on_global[i] = do_warn;
|
|
} else if (!nasm_stricmp(param, "none")) {
|
|
for (i = 1; i <= ERR_WARN_MAX; i++)
|
|
warning_on_global[i] = !do_warn;
|
|
} else {
|
|
nasm_error(ERR_NONFATAL | ERR_NOFILE | ERR_USAGE,
|
|
"invalid warning `%s'", param);
|
|
}
|
|
break;
|
|
|
|
case 'M':
|
|
switch (p[2]) {
|
|
case 0:
|
|
operating_mode = op_depend;
|
|
break;
|
|
case 'G':
|
|
operating_mode = op_depend;
|
|
depend_missing_ok = true;
|
|
break;
|
|
case 'P':
|
|
depend_emit_phony = true;
|
|
break;
|
|
case 'D':
|
|
depend_file = q;
|
|
advance = true;
|
|
break;
|
|
case 'T':
|
|
depend_target = q;
|
|
advance = true;
|
|
break;
|
|
case 'Q':
|
|
depend_target = quote_for_make(q);
|
|
advance = true;
|
|
break;
|
|
default:
|
|
nasm_error(ERR_NONFATAL|ERR_NOFILE|ERR_USAGE,
|
|
"unknown dependency option `-M%c'", p[2]);
|
|
break;
|
|
}
|
|
if (advance && (!q || !q[0])) {
|
|
nasm_error(ERR_NONFATAL|ERR_NOFILE|ERR_USAGE,
|
|
"option `-M%c' requires a parameter", p[2]);
|
|
break;
|
|
}
|
|
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) {
|
|
nasm_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:
|
|
{
|
|
nasm_error(ERR_NONFATAL | ERR_NOFILE | ERR_USAGE,
|
|
"unrecognised option `--%s'", p + 2);
|
|
break;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
|
|
default:
|
|
if (!ofmt->setinfo(GI_SWITCH, &p))
|
|
nasm_error(ERR_NONFATAL | ERR_NOFILE | ERR_USAGE,
|
|
"unrecognised option `-%c'", p[1]);
|
|
break;
|
|
}
|
|
} else {
|
|
if (*inname) {
|
|
nasm_error(ERR_NONFATAL | ERR_NOFILE | ERR_USAGE,
|
|
"more than one input file specified");
|
|
} else {
|
|
copy_filename(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 && nasm_isspace(p[-1]))
|
|
*--p = '\0';
|
|
|
|
p = nasm_skip_spaces(buffer);
|
|
|
|
if (process_arg(prevarg, p))
|
|
*p = '\0';
|
|
|
|
if ((int) strlen(p) > prevargsize - 10) {
|
|
prevargsize += ARG_BUF_DELTA;
|
|
prevarg = nasm_realloc(prevarg, prevargsize);
|
|
}
|
|
strncpy(prevarg, p, prevargsize);
|
|
}
|
|
}
|
|
|
|
/* 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 process_response_file(const char *file)
|
|
{
|
|
char str[2048];
|
|
FILE *f = fopen(file, "r");
|
|
if (!f) {
|
|
perror(file);
|
|
exit(-1);
|
|
}
|
|
while (fgets(str, sizeof str, f)) {
|
|
process_args(str);
|
|
}
|
|
fclose(f);
|
|
}
|
|
|
|
static void parse_cmdline(int argc, char **argv)
|
|
{
|
|
FILE *rfile;
|
|
char *envreal, *envcopy = NULL, *p;
|
|
int i;
|
|
|
|
*inname = *outname = *listname = *errname = '\0';
|
|
|
|
for (i = 0; i <= ERR_WARN_MAX; i++)
|
|
warning_on_global[i] = warnings[i].enabled;
|
|
|
|
/*
|
|
* First, process the NASMENV environment variable.
|
|
*/
|
|
envreal = getenv("NASMENV");
|
|
if (envreal) {
|
|
envcopy = nasm_strdup(envreal);
|
|
process_args(envcopy);
|
|
nasm_free(envcopy);
|
|
}
|
|
|
|
/*
|
|
* Now process the actual command line.
|
|
*/
|
|
while (--argc) {
|
|
bool advance;
|
|
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.
|
|
*/
|
|
process_response_file(argv[0]+1);
|
|
argc--;
|
|
argv++;
|
|
}
|
|
if (!stopoptions && argv[0][0] == '-' && argv[0][1] == '@') {
|
|
p = get_param(argv[0], argc > 1 ? argv[1] : NULL, &advance);
|
|
if (p) {
|
|
rfile = fopen(p, "r");
|
|
if (rfile) {
|
|
process_respfile(rfile);
|
|
fclose(rfile);
|
|
} else
|
|
nasm_error(ERR_NONFATAL | ERR_NOFILE | ERR_USAGE,
|
|
"unable to open response file `%s'", p);
|
|
}
|
|
} else
|
|
advance = process_arg(argv[0], argc > 1 ? argv[1] : NULL);
|
|
argv += advance, argc -= advance;
|
|
}
|
|
|
|
/*
|
|
* Look for basic command line typos. This definitely doesn't
|
|
* catch all errors, but it might help cases of fumbled fingers.
|
|
*/
|
|
if (!*inname)
|
|
nasm_error(ERR_NONFATAL | ERR_NOFILE | ERR_USAGE,
|
|
"no input file specified");
|
|
else if (!strcmp(inname, errname) ||
|
|
!strcmp(inname, outname) ||
|
|
!strcmp(inname, listname) ||
|
|
(depend_file && !strcmp(inname, depend_file)))
|
|
nasm_error(ERR_FATAL | ERR_NOFILE | ERR_USAGE,
|
|
"file `%s' is both input and output file",
|
|
inname);
|
|
|
|
if (*errname) {
|
|
error_file = fopen(errname, "w");
|
|
if (!error_file) {
|
|
error_file = stderr; /* Revert to default! */
|
|
nasm_error(ERR_FATAL | ERR_NOFILE | ERR_USAGE,
|
|
"cannot open file `%s' for error messages",
|
|
errname);
|
|
}
|
|
}
|
|
}
|
|
|
|
static enum directives getkw(char **directive, char **value);
|
|
|
|
static void assemble_file(char *fname, StrList **depend_ptr)
|
|
{
|
|
char *directive, *value, *p, *q, *special, *line;
|
|
insn output_ins;
|
|
int i, validid;
|
|
bool rn_error;
|
|
int32_t seg;
|
|
int64_t offs;
|
|
struct tokenval tokval;
|
|
expr *e;
|
|
int pass_max;
|
|
|
|
if (cmd_sb == 32 && cmd_cpu < IF_386)
|
|
nasm_error(ERR_FATAL, "command line: "
|
|
"32-bit segment size requires a higher cpu");
|
|
|
|
pass_max = prev_offset_changed = (INT_MAX >> 1) + 2; /* Almost unlimited */
|
|
for (passn = 1; pass0 <= 2; passn++) {
|
|
int pass1, pass2;
|
|
ldfunc def_label;
|
|
|
|
pass1 = pass0 == 2 ? 2 : 1; /* 1, 1, 1, ..., 1, 2 */
|
|
pass2 = passn > 1 ? 2 : 1; /* 1, 2, 2, ..., 2, 2 */
|
|
/* pass0 0, 0, 0, ..., 1, 2 */
|
|
|
|
def_label = passn > 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, nasm_error);
|
|
}
|
|
in_abs_seg = false;
|
|
global_offset_changed = 0; /* set by redefine_label */
|
|
location.segment = ofmt->section(NULL, pass2, &sb);
|
|
globalbits = sb;
|
|
if (passn > 1) {
|
|
saa_rewind(forwrefs);
|
|
forwref = saa_rstruct(forwrefs);
|
|
raa_free(offsets);
|
|
offsets = raa_init();
|
|
}
|
|
preproc->reset(fname, pass1, &nasmlist,
|
|
pass1 == 2 ? depend_ptr : NULL);
|
|
memcpy(warning_on, warning_on_global, (ERR_WARN_MAX+1) * sizeof(bool));
|
|
|
|
globallineno = 0;
|
|
if (passn == 1)
|
|
location.known = true;
|
|
location.offset = offs = GET_CURR_OFFS;
|
|
|
|
while ((line = preproc->getline())) {
|
|
enum directives d;
|
|
globallineno++;
|
|
|
|
/*
|
|
* Here we parse our directives; this is not handled by the
|
|
* 'real' parser. This really should be a separate function.
|
|
*/
|
|
directive = line;
|
|
d = getkw(&directive, &value);
|
|
if (d) {
|
|
int err = 0;
|
|
|
|
switch (d) {
|
|
case D_SEGMENT: /* [SEGMENT n] */
|
|
case D_SECTION:
|
|
seg = ofmt->section(value, pass2, &sb);
|
|
if (seg == NO_SEG) {
|
|
nasm_error(pass1 == 1 ? ERR_NONFATAL : ERR_PANIC,
|
|
"segment name `%s' not recognized",
|
|
value);
|
|
} else {
|
|
in_abs_seg = false;
|
|
location.segment = seg;
|
|
}
|
|
break;
|
|
case D_SECTALIGN: /* [SECTALIGN n] */
|
|
if (*value) {
|
|
stdscan_reset();
|
|
stdscan_set(value);
|
|
tokval.t_type = TOKEN_INVALID;
|
|
e = evaluate(stdscan, NULL, &tokval, NULL, pass2, nasm_error, NULL);
|
|
if (e) {
|
|
unsigned int align = (unsigned int)e->value;
|
|
if ((uint64_t)e->value > 0x7fffffff) {
|
|
/*
|
|
* FIXME: Please make some sane message here
|
|
* ofmt should have some 'check' method which
|
|
* would report segment alignment bounds.
|
|
*/
|
|
nasm_error(ERR_FATAL,
|
|
"incorrect segment alignment `%s'", value);
|
|
} else if (!is_power2(align)) {
|
|
nasm_error(ERR_NONFATAL,
|
|
"segment alignment `%s' is not power of two",
|
|
value);
|
|
}
|
|
/* callee should be able to handle all details */
|
|
ofmt->sectalign(location.segment, align);
|
|
}
|
|
}
|
|
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 (passn == 1) {
|
|
q = value;
|
|
validid = true;
|
|
if (!isidstart(*q))
|
|
validid = false;
|
|
while (*q && *q != ':') {
|
|
if (!isidchar(*q))
|
|
validid = false;
|
|
q++;
|
|
}
|
|
if (!validid) {
|
|
nasm_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);
|
|
define_label(value, seg_alloc(), 0L, NULL,
|
|
false, true);
|
|
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) {
|
|
nasm_error(ERR_NONFATAL,
|
|
"identifier expected after GLOBAL");
|
|
break;
|
|
}
|
|
if (*q == ':') {
|
|
*q++ = '\0';
|
|
special = q;
|
|
} else
|
|
special = NULL;
|
|
declare_as_global(value, special);
|
|
} /* pass == 1 */
|
|
break;
|
|
case D_COMMON: /* [COMMON symbol size:special] */
|
|
{
|
|
int64_t size;
|
|
|
|
if (*value == '$')
|
|
value++; /* skip initial $ if present */
|
|
p = value;
|
|
validid = true;
|
|
if (!isidstart(*p))
|
|
validid = false;
|
|
while (*p && !nasm_isspace(*p)) {
|
|
if (!isidchar(*p))
|
|
validid = false;
|
|
p++;
|
|
}
|
|
if (!validid) {
|
|
nasm_error(ERR_NONFATAL,
|
|
"identifier expected after COMMON");
|
|
break;
|
|
}
|
|
if (*p) {
|
|
p = nasm_zap_spaces_fwd(p);
|
|
q = p;
|
|
while (*q && *q != ':')
|
|
q++;
|
|
if (*q == ':') {
|
|
*q++ = '\0';
|
|
special = q;
|
|
} else {
|
|
special = NULL;
|
|
}
|
|
size = readnum(p, &rn_error);
|
|
if (rn_error) {
|
|
nasm_error(ERR_NONFATAL,
|
|
"invalid size specified"
|
|
" in COMMON declaration");
|
|
break;
|
|
}
|
|
} else {
|
|
nasm_error(ERR_NONFATAL,
|
|
"no size specified in"
|
|
" COMMON declaration");
|
|
break;
|
|
}
|
|
|
|
if (pass0 < 2) {
|
|
define_common(value, seg_alloc(), size, special);
|
|
} else if (pass0 == 2) {
|
|
if (special)
|
|
ofmt->symdef(value, 0L, 0L, 3, special);
|
|
}
|
|
break;
|
|
}
|
|
case D_ABSOLUTE: /* [ABSOLUTE address] */
|
|
stdscan_reset();
|
|
stdscan_set(value);
|
|
tokval.t_type = TOKEN_INVALID;
|
|
e = evaluate(stdscan, NULL, &tokval, NULL, pass2,
|
|
nasm_error, NULL);
|
|
if (e) {
|
|
if (!is_reloc(e))
|
|
nasm_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 (passn == 1)
|
|
abs_offset = 0x100; /* don't go near zero in case of / */
|
|
else
|
|
nasm_error(ERR_PANIC, "invalid ABSOLUTE address "
|
|
"in pass two");
|
|
in_abs_seg = true;
|
|
location.segment = NO_SEG;
|
|
break;
|
|
case D_DEBUG: /* [DEBUG] */
|
|
{
|
|
char debugid[128];
|
|
bool badid, overlong;
|
|
|
|
p = value;
|
|
q = debugid;
|
|
badid = overlong = false;
|
|
if (!isidstart(*p)) {
|
|
badid = true;
|
|
} else {
|
|
while (*p && !nasm_isspace(*p)) {
|
|
if (q >= debugid + sizeof debugid - 1) {
|
|
overlong = true;
|
|
break;
|
|
}
|
|
if (!isidchar(*p))
|
|
badid = true;
|
|
*q++ = *p++;
|
|
}
|
|
*q = 0;
|
|
}
|
|
if (badid) {
|
|
nasm_error(passn == 1 ? ERR_NONFATAL : ERR_PANIC,
|
|
"identifier expected after DEBUG");
|
|
break;
|
|
}
|
|
if (overlong) {
|
|
nasm_error(passn == 1 ? ERR_NONFATAL : ERR_PANIC,
|
|
"DEBUG identifier too long");
|
|
break;
|
|
}
|
|
p = nasm_skip_spaces(p);
|
|
if (pass0 == 2)
|
|
dfmt->debug_directive(debugid, p);
|
|
break;
|
|
}
|
|
case D_WARNING: /* [WARNING {+|-|*}warn-name] */
|
|
value = nasm_skip_spaces(value);
|
|
switch(*value) {
|
|
case '-': validid = 0; value++; break;
|
|
case '+': validid = 1; value++; break;
|
|
case '*': validid = 2; value++; break;
|
|
default: validid = 1; break;
|
|
}
|
|
|
|
for (i = 1; i <= ERR_WARN_MAX; i++)
|
|
if (!nasm_stricmp(value, warnings[i].name))
|
|
break;
|
|
if (i <= ERR_WARN_MAX) {
|
|
switch(validid) {
|
|
case 0:
|
|
warning_on[i] = false;
|
|
break;
|
|
case 1:
|
|
warning_on[i] = true;
|
|
break;
|
|
case 2:
|
|
warning_on[i] = warning_on_global[i];
|
|
break;
|
|
}
|
|
} else
|
|
nasm_error(ERR_NONFATAL,
|
|
"invalid warning id in WARNING directive");
|
|
break;
|
|
case D_CPU: /* [CPU] */
|
|
cpu = get_cpu(value);
|
|
break;
|
|
case D_LIST: /* [LIST {+|-}] */
|
|
value = nasm_skip_spaces(value);
|
|
if (*value == '+') {
|
|
user_nolist = 0;
|
|
} else {
|
|
if (*value == '-') {
|
|
user_nolist = 1;
|
|
} else {
|
|
err = 1;
|
|
}
|
|
}
|
|
break;
|
|
case D_DEFAULT: /* [DEFAULT] */
|
|
stdscan_reset();
|
|
stdscan_set(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;
|
|
case D_FLOAT:
|
|
if (float_option(value)) {
|
|
nasm_error(pass1 == 1 ? ERR_NONFATAL : ERR_PANIC,
|
|
"unknown 'float' directive: %s",
|
|
value);
|
|
}
|
|
break;
|
|
default:
|
|
if (ofmt->directive(d, value, pass2))
|
|
break;
|
|
/* else fall through */
|
|
case D_unknown:
|
|
nasm_error(pass1 == 1 ? ERR_NONFATAL : ERR_PANIC,
|
|
"unrecognised directive [%s]",
|
|
directive);
|
|
break;
|
|
}
|
|
if (err) {
|
|
nasm_error(ERR_NONFATAL,
|
|
"invalid parameter to [%s] directive",
|
|
directive);
|
|
}
|
|
} else { /* it isn't a directive */
|
|
parse_line(pass1, line, &output_ins, def_label);
|
|
|
|
if (optimizing > 0) {
|
|
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 (output_ins.forw_ref) {
|
|
if (passn == 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;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/* 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)
|
|
nasm_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) {
|
|
bool 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);
|
|
} 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);
|
|
} else
|
|
nasm_error(ERR_NONFATAL,
|
|
"bad syntax for EQU");
|
|
}
|
|
} else {
|
|
/*
|
|
* 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);
|
|
} 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);
|
|
} else
|
|
nasm_error(ERR_NONFATAL,
|
|
"bad syntax for EQU");
|
|
}
|
|
}
|
|
} else { /* instruction isn't an EQU */
|
|
|
|
if (pass1 == 1) {
|
|
|
|
int64_t l = insn_size(location.segment, offs, sb, cpu,
|
|
&output_ins, nasm_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_RESO:
|
|
typeinfo =
|
|
TYS_ELEMENTS(output_ins.oprs[0].offset) | TY_OWORD;
|
|
break;
|
|
case I_RESY:
|
|
typeinfo =
|
|
TYS_ELEMENTS(output_ins.oprs[0].offset) | TY_YWORD;
|
|
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;
|
|
case I_DY:
|
|
typeinfo |= TY_YWORD;
|
|
break;
|
|
default:
|
|
typeinfo = TY_LABEL;
|
|
|
|
}
|
|
|
|
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 {
|
|
offs += assemble(location.segment, offs, sb, cpu,
|
|
&output_ins, ofmt, nasm_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 (pass0 == 2 && global_offset_changed && !terminate_after_phase)
|
|
nasm_error(ERR_NONFATAL,
|
|
"phase error detected at end of assembly.");
|
|
|
|
if (pass1 == 1)
|
|
preproc->cleanup(1);
|
|
|
|
if ((passn > 1 && !global_offset_changed) || pass0 == 2) {
|
|
pass0++;
|
|
} else if (global_offset_changed &&
|
|
global_offset_changed < prev_offset_changed) {
|
|
prev_offset_changed = global_offset_changed;
|
|
stall_count = 0;
|
|
} else {
|
|
stall_count++;
|
|
}
|
|
|
|
if (terminate_after_phase)
|
|
break;
|
|
|
|
if ((stall_count > 997) || (passn >= pass_max)) {
|
|
/* We get here if the labels don't converge
|
|
* Example: FOO equ FOO + 1
|
|
*/
|
|
nasm_error(ERR_NONFATAL,
|
|
"Can't find valid values for all labels "
|
|
"after %d passes, giving up.", passn);
|
|
nasm_error(ERR_NONFATAL,
|
|
"Possible causes: recursive EQUs, macro abuse.");
|
|
break;
|
|
}
|
|
}
|
|
|
|
preproc->cleanup(0);
|
|
nasmlist.cleanup();
|
|
if (!terminate_after_phase && opt_verbose_info) {
|
|
/* -On and -Ov switches */
|
|
fprintf(stdout, "info: assembly required 1+%d+1 passes\n", passn-3);
|
|
}
|
|
}
|
|
|
|
static enum directives getkw(char **directive, char **value)
|
|
{
|
|
char *p, *q, *buf;
|
|
|
|
buf = nasm_skip_spaces(*directive);
|
|
|
|
/* it should be enclosed in [ ] */
|
|
if (*buf != '[')
|
|
return D_none;
|
|
q = strchr(buf, ']');
|
|
if (!q)
|
|
return D_none;
|
|
|
|
/* stip off the comments */
|
|
p = strchr(buf, ';');
|
|
if (p) {
|
|
if (p < q) /* ouch! somwhere inside */
|
|
return D_none;
|
|
*p = '\0';
|
|
}
|
|
|
|
/* no brace, no trailing spaces */
|
|
*q = '\0';
|
|
nasm_zap_spaces_rev(--q);
|
|
|
|
/* directive */
|
|
p = nasm_skip_spaces(++buf);
|
|
q = nasm_skip_word(p);
|
|
if (!q)
|
|
return D_none; /* sigh... no value there */
|
|
*q = '\0';
|
|
*directive = p;
|
|
|
|
/* and value finally */
|
|
p = nasm_skip_spaces(++q);
|
|
*value = p;
|
|
|
|
return find_directive(*directive);
|
|
}
|
|
|
|
/**
|
|
* 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 nasm_verror_gnu(int severity, const char *fmt, va_list ap)
|
|
{
|
|
char *currentfile = NULL;
|
|
int32_t lineno = 0;
|
|
|
|
if (is_suppressed_warning(severity))
|
|
return;
|
|
|
|
if (!(severity & ERR_NOFILE))
|
|
src_get(&lineno, ¤tfile);
|
|
|
|
if (currentfile) {
|
|
fprintf(error_file, "%s:%"PRId32": ", currentfile, lineno);
|
|
nasm_free(currentfile);
|
|
} else {
|
|
fputs("nasm: ", error_file);
|
|
}
|
|
|
|
nasm_verror_common(severity, fmt, 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 nasm_verror_vc(int severity, const char *fmt, va_list ap)
|
|
{
|
|
char *currentfile = NULL;
|
|
int32_t lineno = 0;
|
|
|
|
if (is_suppressed_warning(severity))
|
|
return;
|
|
|
|
if (!(severity & ERR_NOFILE))
|
|
src_get(&lineno, ¤tfile);
|
|
|
|
if (currentfile) {
|
|
fprintf(error_file, "%s(%"PRId32") : ", currentfile, lineno);
|
|
nasm_free(currentfile);
|
|
} else {
|
|
fputs("nasm: ", error_file);
|
|
}
|
|
|
|
nasm_verror_common(severity, fmt, 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 bool is_suppressed_warning(int severity)
|
|
{
|
|
/* Not a warning at all */
|
|
if ((severity & ERR_MASK) != ERR_WARNING)
|
|
return false;
|
|
|
|
/* See if it's a pass-one only warning and we're not in pass one. */
|
|
if (((severity & ERR_PASS1) && pass0 != 1) ||
|
|
((severity & ERR_PASS2) && pass0 != 2))
|
|
return true;
|
|
|
|
/* Might be a warning but suppresed explicitly */
|
|
if (severity & ERR_WARN_MASK)
|
|
return !warning_on[WARN_IDX(severity)];
|
|
else
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* 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 nasm_verror_common(int severity, const char *fmt, va_list args)
|
|
{
|
|
char msg[1024];
|
|
const char *pfx;
|
|
|
|
switch (severity & (ERR_MASK|ERR_NO_SEVERITY)) {
|
|
case ERR_WARNING:
|
|
pfx = "warning: ";
|
|
break;
|
|
case ERR_NONFATAL:
|
|
pfx = "error: ";
|
|
break;
|
|
case ERR_FATAL:
|
|
pfx = "fatal: ";
|
|
break;
|
|
case ERR_PANIC:
|
|
pfx = "panic: ";
|
|
break;
|
|
case ERR_DEBUG:
|
|
pfx = "debug: ";
|
|
break;
|
|
default:
|
|
pfx = "";
|
|
break;
|
|
}
|
|
|
|
vsnprintf(msg, sizeof msg, fmt, args);
|
|
|
|
fprintf(error_file, "%s%s\n", pfx, msg);
|
|
|
|
if (*listname)
|
|
nasmlist.error(severity, pfx, msg);
|
|
|
|
if (severity & ERR_USAGE)
|
|
want_usage = true;
|
|
|
|
switch (severity & ERR_MASK) {
|
|
case ERR_DEBUG:
|
|
/* no further action, by definition */
|
|
break;
|
|
case ERR_WARNING:
|
|
/* Treat warnings as errors */
|
|
if (warning_on[WARN_IDX(ERR_WARN_TERM)])
|
|
terminate_after_phase = true;
|
|
break;
|
|
case ERR_NONFATAL:
|
|
terminate_after_phase = true;
|
|
break;
|
|
case ERR_FATAL:
|
|
if (ofile) {
|
|
fclose(ofile);
|
|
remove(outname);
|
|
ofile = NULL;
|
|
}
|
|
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 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;
|
|
|
|
nasm_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) {
|
|
nasm_error(ERR_NONFATAL,
|
|
"cannot specify 32-bit segment on processor below a 386");
|
|
i = 16;
|
|
}
|
|
} else if (i == 64) {
|
|
if (cpu < IF_X86_64) {
|
|
nasm_error(ERR_NONFATAL,
|
|
"cannot specify 64-bit segment on processor below an x86-64");
|
|
i = 16;
|
|
}
|
|
if (i != maxbits) {
|
|
nasm_error(ERR_NONFATAL,
|
|
"%s output format does not support 64-bit code",
|
|
ofmt->shortname);
|
|
i = 16;
|
|
}
|
|
} else {
|
|
nasm_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;
|
|
}
|