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revert of the 'Identifiers can start and/or contain'

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When tccboot kernels compiles with
    'Identifiers can start and/or', this kernel don't start.
    It is hard to find what is wrong.

    PS: there was no test for identifiers in *.S with '.'
This commit is contained in:
seyko 2016-04-13 03:52:07 +03:00
parent 174d06a3ff
commit 131d776d66
4 changed files with 70 additions and 92 deletions
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4
tcc.h
View File

@ -958,9 +958,7 @@ struct TCCState {
#define DEF_ASM(x) DEF(TOK_ASM_ ## x, #x) #define DEF_ASM(x) DEF(TOK_ASM_ ## x, #x)
#define TOK_ASM_int TOK_INT #define TOK_ASM_int TOK_INT
#define DEF_ASMDIR(x) DEF(TOK_ASMDIR_ ## x, "." #x) #define TOK_ASM_weak TOK_WEAK1
#define TOK_ASMDIR_FIRST TOK_ASMDIR_byte
#define TOK_ASMDIR_LAST TOK_ASMDIR_section
#if defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64 #if defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64
/* only used for i386 asm opcodes definitions */ /* only used for i386 asm opcodes definitions */

87
tccasm.c
View File

@ -331,23 +331,24 @@ static void asm_parse_directive(TCCState *s1)
uint8_t *ptr; uint8_t *ptr;
/* assembler directive */ /* assembler directive */
next();
sec = cur_text_section; sec = cur_text_section;
switch(tok) { switch(tok) {
case TOK_ASMDIR_align: case TOK_ASM_align:
case TOK_ASMDIR_p2align: case TOK_ASM_p2align:
case TOK_ASMDIR_skip: case TOK_ASM_skip:
case TOK_ASMDIR_space: case TOK_ASM_space:
tok1 = tok; tok1 = tok;
next(); next();
n = asm_int_expr(s1); n = asm_int_expr(s1);
if (tok1 == TOK_ASMDIR_p2align) if (tok1 == TOK_ASM_p2align)
{ {
if (n < 0 || n > 30) if (n < 0 || n > 30)
tcc_error("invalid p2align, must be between 0 and 30"); tcc_error("invalid p2align, must be between 0 and 30");
n = 1 << n; n = 1 << n;
tok1 = TOK_ASMDIR_align; tok1 = TOK_ASM_align;
} }
if (tok1 == TOK_ASMDIR_align) { if (tok1 == TOK_ASM_align) {
if (n < 0 || (n & (n-1)) != 0) if (n < 0 || (n & (n-1)) != 0)
tcc_error("alignment must be a positive power of two"); tcc_error("alignment must be a positive power of two");
offset = (ind + n - 1) & -n; offset = (ind + n - 1) & -n;
@ -371,7 +372,7 @@ static void asm_parse_directive(TCCState *s1)
} }
ind += size; ind += size;
break; break;
case TOK_ASMDIR_quad: case TOK_ASM_quad:
next(); next();
for(;;) { for(;;) {
uint64_t vl; uint64_t vl;
@ -398,15 +399,15 @@ static void asm_parse_directive(TCCState *s1)
next(); next();
} }
break; break;
case TOK_ASMDIR_byte: case TOK_ASM_byte:
size = 1; size = 1;
goto asm_data; goto asm_data;
case TOK_ASMDIR_word: case TOK_ASM_word:
case TOK_ASMDIR_short: case TOK_SHORT:
size = 2; size = 2;
goto asm_data; goto asm_data;
case TOK_ASMDIR_long: case TOK_LONG:
case TOK_ASMDIR_int: case TOK_INT:
size = 4; size = 4;
asm_data: asm_data:
next(); next();
@ -432,7 +433,7 @@ static void asm_parse_directive(TCCState *s1)
next(); next();
} }
break; break;
case TOK_ASMDIR_fill: case TOK_ASM_fill:
{ {
int repeat, size, val, i, j; int repeat, size, val, i, j;
uint8_t repeat_buf[8]; uint8_t repeat_buf[8];
@ -474,7 +475,7 @@ static void asm_parse_directive(TCCState *s1)
} }
} }
break; break;
case TOK_ASMDIR_org: case TOK_ASM_org:
{ {
unsigned long n; unsigned long n;
next(); next();
@ -487,10 +488,10 @@ static void asm_parse_directive(TCCState *s1)
goto zero_pad; goto zero_pad;
} }
break; break;
case TOK_ASMDIR_globl: case TOK_ASM_globl:
case TOK_ASMDIR_global: case TOK_ASM_global:
case TOK_ASMDIR_weak: case TOK_ASM_weak:
case TOK_ASMDIR_hidden: case TOK_ASM_hidden:
tok1 = tok; tok1 = tok;
do { do {
Sym *sym; Sym *sym;
@ -501,18 +502,18 @@ static void asm_parse_directive(TCCState *s1)
sym = label_push(&s1->asm_labels, tok, 0); sym = label_push(&s1->asm_labels, tok, 0);
sym->type.t = VT_VOID; sym->type.t = VT_VOID;
} }
if (tok1 != TOK_ASMDIR_hidden) if (tok1 != TOK_ASM_hidden)
sym->type.t &= ~VT_STATIC; sym->type.t &= ~VT_STATIC;
if (tok1 == TOK_ASMDIR_weak) if (tok1 == TOK_ASM_weak)
sym->type.t |= VT_WEAK; sym->type.t |= VT_WEAK;
else if (tok1 == TOK_ASMDIR_hidden) else if (tok1 == TOK_ASM_hidden)
sym->type.t |= STV_HIDDEN << VT_VIS_SHIFT; sym->type.t |= STV_HIDDEN << VT_VIS_SHIFT;
next(); next();
} while (tok == ','); } while (tok == ',');
break; break;
case TOK_ASMDIR_string: case TOK_ASM_string:
case TOK_ASMDIR_ascii: case TOK_ASM_ascii:
case TOK_ASMDIR_asciz: case TOK_ASM_asciz:
{ {
const uint8_t *p; const uint8_t *p;
int i, size, t; int i, size, t;
@ -524,7 +525,7 @@ static void asm_parse_directive(TCCState *s1)
expect("string constant"); expect("string constant");
p = tokc.str.data; p = tokc.str.data;
size = tokc.str.size; size = tokc.str.size;
if (t == TOK_ASMDIR_ascii && size > 0) if (t == TOK_ASM_ascii && size > 0)
size--; size--;
for(i = 0; i < size; i++) for(i = 0; i < size; i++)
g(p[i]); g(p[i]);
@ -537,9 +538,9 @@ static void asm_parse_directive(TCCState *s1)
} }
} }
break; break;
case TOK_ASMDIR_text: case TOK_ASM_text:
case TOK_ASMDIR_data: case TOK_ASM_data:
case TOK_ASMDIR_bss: case TOK_ASM_bss:
{ {
char sname[64]; char sname[64];
tok1 = tok; tok1 = tok;
@ -556,7 +557,7 @@ static void asm_parse_directive(TCCState *s1)
use_section(s1, sname); use_section(s1, sname);
} }
break; break;
case TOK_ASMDIR_file: case TOK_ASM_file:
{ {
char filename[512]; char filename[512];
@ -574,7 +575,7 @@ static void asm_parse_directive(TCCState *s1)
next(); next();
} }
break; break;
case TOK_ASMDIR_ident: case TOK_ASM_ident:
{ {
char ident[256]; char ident[256];
@ -592,7 +593,7 @@ static void asm_parse_directive(TCCState *s1)
next(); next();
} }
break; break;
case TOK_ASMDIR_size: case TOK_ASM_size:
{ {
Sym *sym; Sym *sym;
@ -613,7 +614,7 @@ static void asm_parse_directive(TCCState *s1)
} }
} }
break; break;
case TOK_ASMDIR_type: case TOK_ASM_type:
{ {
Sym *sym; Sym *sym;
const char *newtype; const char *newtype;
@ -631,7 +632,7 @@ static void asm_parse_directive(TCCState *s1)
newtype = tokc.str.data; newtype = tokc.str.data;
} else { } else {
if (tok == '@' || tok == '%') if (tok == '@' || tok == '%')
next(); skip(tok);
newtype = get_tok_str(tok, NULL); newtype = get_tok_str(tok, NULL);
} }
@ -645,7 +646,7 @@ static void asm_parse_directive(TCCState *s1)
next(); next();
} }
break; break;
case TOK_ASMDIR_section: case TOK_SECTION1:
{ {
char sname[256]; char sname[256];
@ -665,18 +666,12 @@ static void asm_parse_directive(TCCState *s1)
if (tok != TOK_STR) if (tok != TOK_STR)
expect("string constant"); expect("string constant");
next(); next();
if (tok == ',') {
next();
if (tok == '@' || tok == '%')
next();
next();
}
} }
last_text_section = cur_text_section; last_text_section = cur_text_section;
use_section(s1, sname); use_section(s1, sname);
} }
break; break;
case TOK_ASMDIR_previous: case TOK_ASM_previous:
{ {
Section *sec; Section *sec;
next(); next();
@ -688,13 +683,13 @@ static void asm_parse_directive(TCCState *s1)
} }
break; break;
#ifdef TCC_TARGET_I386 #ifdef TCC_TARGET_I386
case TOK_ASMDIR_code16: case TOK_ASM_code16:
{ {
next(); next();
s1->seg_size = 16; s1->seg_size = 16;
} }
break; break;
case TOK_ASMDIR_code32: case TOK_ASM_code32:
{ {
next(); next();
s1->seg_size = 32; s1->seg_size = 32;
@ -703,7 +698,7 @@ static void asm_parse_directive(TCCState *s1)
#endif #endif
#ifdef TCC_TARGET_X86_64 #ifdef TCC_TARGET_X86_64
/* added for compatibility with GAS */ /* added for compatibility with GAS */
case TOK_ASMDIR_code64: case TOK_ASM_code64:
next(); next();
break; break;
#endif #endif
@ -768,7 +763,7 @@ static int tcc_assemble_internal(TCCState *s1, int do_preprocess)
/* horrible gas comment */ /* horrible gas comment */
while (tok != TOK_LINEFEED) while (tok != TOK_LINEFEED)
next(); next();
} else if (tok >= TOK_ASMDIR_FIRST && tok <= TOK_ASMDIR_LAST) { } else if (tok == '.') {
asm_parse_directive(s1); asm_parse_directive(s1);
} else if (tok == TOK_PPNUM) { } else if (tok == TOK_PPNUM) {
const char *p; const char *p;

14
tccpp.c
View File

@ -1328,9 +1328,6 @@ ST_FUNC void parse_define(void)
parse_flags |= PARSE_FLAG_SPACES; parse_flags |= PARSE_FLAG_SPACES;
next_nomacro_spc(); next_nomacro_spc();
if (tok == '(') { if (tok == '(') {
/* must be able to parse TOK_DOTS (in asm mode '.' can be part of identifier) */
parse_flags &= ~PARSE_FLAG_ASM_FILE;
isidnum_table['.' - CH_EOF] = 0;
next_nomacro(); next_nomacro();
ps = &first; ps = &first;
if (tok != ')') for (;;) { if (tok != ')') for (;;) {
@ -1358,9 +1355,6 @@ ST_FUNC void parse_define(void)
} }
next_nomacro_spc(); next_nomacro_spc();
t = MACRO_FUNC; t = MACRO_FUNC;
parse_flags |= (saved_parse_flags & PARSE_FLAG_ASM_FILE);
isidnum_table['.' - CH_EOF] =
(parse_flags & PARSE_FLAG_ASM_FILE) ? IS_ID : 0;
} }
tok_str_new(&str); tok_str_new(&str);
spc = 2; spc = 2;
@ -2511,8 +2505,7 @@ maybe_newline:
p--; p--;
PEEKC(c, p); PEEKC(c, p);
parse_ident_slow: parse_ident_slow:
while (isidnum_table[c - CH_EOF] & (IS_ID|IS_NUM)) while (isidnum_table[c - CH_EOF] & (IS_ID|IS_NUM)) {
{
cstr_ccat(&tokcstr, c); cstr_ccat(&tokcstr, c);
PEEKC(c, p); PEEKC(c, p);
} }
@ -2571,7 +2564,7 @@ maybe_newline:
cstr_reset(&tokcstr); cstr_reset(&tokcstr);
cstr_ccat(&tokcstr, '.'); cstr_ccat(&tokcstr, '.');
goto parse_num; goto parse_num;
} else if (parse_flags & PARSE_FLAG_ASM_FILE) { } else if ((isidnum_table['.' - CH_EOF] & IS_ID) != 0) { /* asm mode */
*--p = c = '.'; *--p = c = '.';
goto parse_ident_fast; goto parse_ident_fast;
} else if (c == '.') { } else if (c == '.') {
@ -3368,9 +3361,6 @@ ST_FUNC void preprocess_init(TCCState *s1)
isidnum_table['$' - CH_EOF] = isidnum_table['$' - CH_EOF] =
tcc_state->dollars_in_identifiers ? IS_ID : 0; tcc_state->dollars_in_identifiers ? IS_ID : 0;
isidnum_table['.' - CH_EOF] =
(parse_flags & PARSE_FLAG_ASM_FILE) ? IS_ID : 0;
} }
ST_FUNC void preprocess_new(void) ST_FUNC void preprocess_new(void)

57
tcctok.h
View File

@ -301,40 +301,35 @@
#endif #endif
/* Tiny Assembler */ /* Tiny Assembler */
DEF_ASMDIR(byte) /* must be first directive */ DEF_ASM(byte)
DEF_ASMDIR(word) DEF_ASM(word)
DEF_ASMDIR(align) DEF_ASM(align)
DEF_ASMDIR(p2align) DEF_ASM(p2align)
DEF_ASMDIR(skip) DEF_ASM(skip)
DEF_ASMDIR(space) DEF_ASM(space)
DEF_ASMDIR(string) DEF_ASM(string)
DEF_ASMDIR(asciz) DEF_ASM(asciz)
DEF_ASMDIR(ascii) DEF_ASM(ascii)
DEF_ASMDIR(file) DEF_ASM(file)
DEF_ASMDIR(globl) DEF_ASM(globl)
DEF_ASMDIR(global) DEF_ASM(global)
DEF_ASMDIR(weak) DEF_ASM(hidden)
DEF_ASMDIR(hidden) DEF_ASM(ident)
DEF_ASMDIR(ident) DEF_ASM(size)
DEF_ASMDIR(size) DEF_ASM(type)
DEF_ASMDIR(type) DEF_ASM(text)
DEF_ASMDIR(text) DEF_ASM(data)
DEF_ASMDIR(data) DEF_ASM(bss)
DEF_ASMDIR(bss) DEF_ASM(previous)
DEF_ASMDIR(previous) DEF_ASM(fill)
DEF_ASMDIR(fill) DEF_ASM(org)
DEF_ASMDIR(org) DEF_ASM(quad)
DEF_ASMDIR(quad)
#if defined(TCC_TARGET_I386) #if defined(TCC_TARGET_I386)
DEF_ASMDIR(code16) DEF_ASM(code16)
DEF_ASMDIR(code32) DEF_ASM(code32)
#elif defined(TCC_TARGET_X86_64) #elif defined(TCC_TARGET_X86_64)
DEF_ASMDIR(code64) DEF_ASM(code64)
#endif #endif
DEF_ASMDIR(short)
DEF_ASMDIR(long)
DEF_ASMDIR(int)
DEF_ASMDIR(section) /* must be last directive */
#if defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64 #if defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64
#include "i386-tok.h" #include "i386-tok.h"