From c713168bc72a7fd0dcc8da3b2c41acac18538fe1 Mon Sep 17 00:00:00 2001 From: "H. Peter Anvin" Date: Tue, 7 Mar 2017 17:45:01 -0800 Subject: [PATCH] asm/nasm.c: Move directive parsing into a separate function Move the directive parsing out of the main loop into a separate function. It is much cleaner this way, and opens up for further refactoring -- a bunch of the directives do the same thing or very similar things. Signed-off-by: H. Peter Anvin --- asm/directiv.pl | 5 +- asm/nasm.c | 1147 +++++++++++++++++++++++++++++-------------------------- 2 files changed, 609 insertions(+), 543 deletions(-) diff --git a/asm/directiv.pl b/asm/directiv.pl index b567aff9..6a2d5635 100755 --- a/asm/directiv.pl +++ b/asm/directiv.pl @@ -45,7 +45,10 @@ require 'phash.ph'; my($output, $directives_dat, $outfile) = @ARGV; @directives = (); -@specials = ('none', 'unknown'); + +# Special values for enum directives. Note that D_none must be first +# so D_none == 0. +@specials = ('none', 'unknown', 'corrupt'); open(DD, "< ${directives_dat}\0") or die "$0: cannot open: ${directives_dat}: $!\n"; diff --git a/asm/nasm.c b/asm/nasm.c index dc8eecff..398ad3de 100644 --- a/asm/nasm.c +++ b/asm/nasm.c @@ -1,6 +1,6 @@ /* ----------------------------------------------------------------------- * * - * Copyright 1996-2016 The NASM Authors - All Rights Reserved + * Copyright 1996-2017 The NASM Authors - All Rights Reserved * See the file AUTHORS included with the NASM distribution for * the specific copyright holders. * @@ -90,6 +90,7 @@ static const char *debug_format; bool tasm_compatible_mode = false; int pass0, passn; +static int pass1, pass2; /* XXX: Get rid of these, they are redundant */ int globalrel = 0; int globalbnd = 0; @@ -1243,20 +1244,447 @@ static void parse_cmdline(int argc, char **argv, int pass) } } -static enum directives getkw(char **directive, char **value); +static enum directives parse_directive_line(char **directive, char **value) +{ + char *p, *q, *buf; + + buf = nasm_skip_spaces(*directive); + + /* + * It should be enclosed in [ ]. + * XXX: we don't check there is nothing else on the remainder of the + * line, except a possible comment. + */ + if (*buf != '[') + return D_none; + q = strchr(buf, ']'); + if (!q) + return D_corrupt; + + /* + * Strip off the comments. XXX: this doesn't account for quoted + * strings inside a directive. We should really strip the + * comments in generic code, not here. While we're at it, it + * would be better to pass the backend a series of tokens instead + * of a raw string, and actually process quoted strings for it, + * like of like argv is handled in C. + */ + p = strchr(buf, ';'); + if (p) { + if (p < q) /* ouch! somewhere inside */ + return D_corrupt; + *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_corrupt; /* sigh... no value there */ + *q = '\0'; + *directive = p; + + /* and value finally */ + p = nasm_skip_spaces(++q); + *value = p; + + return find_directive(*directive); +} + +static void process_pragma(char *str) +{ + (void)str; +} + +static enum directives process_directives(char *directive) +{ + enum directives d; + char *value, *p, *q, *special; + struct tokenval tokval; + bool bad_param = false; + + d = parse_directive_line(&directive, &value); + + switch (d) { + case D_none: + return D_none; /* Not a directive */ + + case D_corrupt: + nasm_error(ERR_NONFATAL, "invalid directive line"); + break; + + default: /* It's a backend-specific directive */ + 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; + + case D_SEGMENT: /* [SEGMENT n] */ + case D_SECTION: + { + int sb; + int32_t 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] */ + { + expr *e; + + if (*value) { + stdscan_reset(); + stdscan_set(value); + tokval.t_type = TOKEN_INVALID; + e = evaluate(stdscan, NULL, &tokval, NULL, pass2, NULL); + if (e) { + uint64_t align = e->value; + + if (!is_power2(e->value)) { + nasm_error(ERR_NONFATAL, + "segment alignment `%s' is not power of two", + value); + } else if (align > UINT64_C(0x7fffffff)) { + /* + * FIXME: Please make some sane message here + * ofmt should have some 'check' method which + * would report segment alignment bounds. + */ + nasm_error(ERR_NONFATAL, + "absurdly large segment alignment `%s' (2^%d)", + value, ilog2_64(align)); + } + + /* callee should be able to handle all details */ + if (location.segment != NO_SEG) + 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) { + bool validid = true; + q = value; + 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 = 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 */ + bool validid = true; + + q = value; + 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; + bool rn_error; + bool validid; + + 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] */ + { + expr *e; + + stdscan_reset(); + stdscan_set(value); + tokval.t_type = TOKEN_INVALID; + e = evaluate(stdscan, NULL, &tokval, NULL, pass2, 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_panic(0, "invalid ABSOLUTE address " + "in pass two"); + in_abs_seg = true; + location.segment = NO_SEG; + break; + } + + case D_DEBUG: /* [DEBUG] */ + { + bool badid, overlong; + char debugid[128]; + + 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] */ + { + enum warn_action { WID_OFF, WID_ON, WID_RESET }; + enum warn_action action; + int i; + + value = nasm_skip_spaces(value); + switch(*value) { + case '-': action = WID_OFF; value++; break; + case '+': action = WID_ON; value++; break; + case '*': action = WID_RESET; value++; break; + default: action = WID_ON; break; + } + + for (i = 1; i <= ERR_WARN_MAX; i++) + if (!nasm_stricmp(value, warnings[i].name)) + break; + if (i <= ERR_WARN_MAX) { + switch (action) { + case WID_OFF: + warning_on[i] = false; + break; + case WID_ON: + warning_on[i] = true; + break; + case WID_RESET: + warning_on[i] = warning_on_global[i]; + break; + } + } + 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 { + bad_param = true; + } + } + break; + + case D_DEFAULT: /* [DEFAULT] */ + stdscan_reset(); + stdscan_set(value); + tokval.t_type = TOKEN_INVALID; + if (stdscan(NULL, &tokval) != TOKEN_INVALID) { + switch (tokval.t_integer) { + case S_REL: + globalrel = 1; + break; + case S_ABS: + globalrel = 0; + break; + case P_BND: + globalbnd = 1; + break; + case P_NOBND: + globalbnd = 0; + break; + default: + bad_param = true; + break; + } + } else { + bad_param = true; + } + break; + + case D_FLOAT: + if (float_option(value)) { + nasm_error(pass1 == 1 ? ERR_NONFATAL : ERR_PANIC, + "unknown 'float' directive: %s", value); + } + break; + + case D_PRAGMA: + process_pragma(value); + break; + } + + + /* A common error message */ + if (bad_param) { + nasm_error(ERR_NONFATAL, "invalid parameter to [%s] directive", + directive); + } + + return d; +} static void assemble_file(char *fname, StrList **depend_ptr) { - char *directive, *value, *p, *q, *special, *line; + char *line; insn output_ins; - int i, validid; - bool rn_error; - int32_t seg; + int i; int64_t offs; - struct tokenval tokval; - expr *e; int pass_max; - char debugid[128]; int sb; if (cmd_sb == 32 && iflag_ffs(&cmd_cpu) < IF_386) @@ -1264,7 +1692,6 @@ static void assemble_file(char *fname, StrList **depend_ptr) 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 */ @@ -1297,528 +1724,204 @@ static void assemble_file(char *fname, StrList **depend_ptr) 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. + * main parser. */ - 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, 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_fatal(0, - "incorrect segment alignment `%s'", value); - } else if (!is_power2(align)) { - nasm_error(ERR_NONFATAL, - "segment alignment `%s' is not power of two", - value); - } + if (process_directives(line) != D_none) + goto end_of_line; /* Just do final cleanup */ + + /* Not a directive, or even something that starts with [ */ + + parse_line(pass1, line, &output_ins, def_label); - /* callee should be able to handle all details */ - if (location.segment != NO_SEG) - ofmt->sectalign(location.segment, align); + 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; + } } } - 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; + } + } + + /* 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 - 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; + "bad syntax for EQU"); } - 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) { + } 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, - "invalid size specified" - " in COMMON declaration"); - break; - } - } else { - nasm_error(ERR_NONFATAL, - "no size specified in" - " COMMON declaration"); - break; + "bad syntax for EQU"); } - - 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, 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_panic(0, "invalid ABSOLUTE address " - "in pass two"); - in_abs_seg = true; - location.segment = NO_SEG; - break; - case D_DEBUG: /* [DEBUG] */ - { - 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; - } + } else { /* instruction isn't an EQU */ + + if (pass1 == 1) { - for (i = 1; i <= ERR_WARN_MAX; i++) - if (!nasm_stricmp(value, warnings[i].name)) + int64_t l = insn_size(location.segment, offs, sb, cpu, + &output_ins); + l *= output_ins.times; + + /* 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; - if (i <= ERR_WARN_MAX) { - switch(validid) { - case 0: - warning_on[i] = false; + case I_RESW: + typeinfo = + TYS_ELEMENTS(output_ins.oprs[0].offset) | TY_WORD; break; - case 1: - warning_on[i] = true; + case I_RESD: + typeinfo = + TYS_ELEMENTS(output_ins.oprs[0].offset) | TY_DWORD; break; - case 2: - warning_on[i] = warning_on_global[i]; + case I_RESQ: + typeinfo = + TYS_ELEMENTS(output_ins.oprs[0].offset) | TY_QWORD; break; - } - } - 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_INVALID) { - switch (tokval.t_integer) { - case S_REL: - globalrel = 1; + case I_REST: + typeinfo = + TYS_ELEMENTS(output_ins.oprs[0].offset) | TY_TBYTE; break; - case S_ABS: - globalrel = 0; + case I_RESO: + typeinfo = + TYS_ELEMENTS(output_ins.oprs[0].offset) | TY_OWORD; break; - case P_BND: - globalbnd = 1; + case I_RESY: + typeinfo = + TYS_ELEMENTS(output_ins.oprs[0].offset) | TY_YWORD; break; - case P_NOBND: - globalbnd = 0; + case I_DB: + typeinfo |= TY_BYTE; break; - default: - err = 1; + case I_DW: + typeinfo |= TY_WORD; 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; - case D_PRAGMA: - /* Currently the pragma directive doesn't do anything */ - 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; - } - } - } - } - } + 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; - /* 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); - l *= output_ins.times; - /* 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); + set_curr_offs(offs); - 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); - set_curr_offs(offs); + } + } /* not an EQU */ + cleanup_insn(&output_ins); - } - } /* not an EQU */ - cleanup_insn(&output_ins); - } + end_of_line: nasm_free(line); location.offset = offs = get_curr_offs(); } /* end while (line = preproc->getline... */ @@ -1864,46 +1967,6 @@ static void assemble_file(char *fname, StrList **depend_ptr) } } -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 -- 2.11.4.GIT