%{
-/* Copyright (C) 1991 Free Software Foundation, Inc.
+/* Copyright (C) 1991, 1992, 1993, 1994 Free Software Foundation, Inc.
This file is part of GLD, the Gnu Linker.
#include <ansidecl.h>
+#include <stdio.h>
+/* start-sanitize-mpw */
+#ifdef MPW
+/* Prevent enum redefinition problems. */
+#define TRUE_FALSE_ALREADY_DEFINED
+#endif /* MPW */
+/* end-sanitize-mpw */
#include "bfd.h"
+#include "sysdep.h"
+#include "ld.h"
#include "ldgram.h"
-
-int ldgram_in_defsym;
-extern int ldgram_had_equals;
-extern int ldgram_in_script;
-
+#include "ldmisc.h"
+#include "ldexp.h"
+#include "ldlang.h"
+#include "ldfile.h"
+#include "ldlex.h"
+#include "ldmain.h"
+
+/* The type of top-level parser input.
+ yylex and yyparse (indirectly) both check this. */
+input_type parser_input;
+
+/* Radix to use for bfd_scan_vma -- 0 (default to base 10) or 16. */
int hex_mode;
-extern int fgetc();
-extern int yyparse();
-
-
-
-char *buystring();
+/* Line number in the current input file.
+ (FIXME Actually, it doesn't appear to get reset for each file?) */
unsigned int lineno = 1;
-int old;
-static comment();
+/* Support for flex reading from more than one input file (stream).
+ `include_stack' is flex's input state for each open file;
+ `file_name_stack' is the file names.
+
+ If `include_stack_ptr' is 0, we haven't started reading anything yet.
+ Otherwise, stack elements 0 through `include_stack_ptr - 1' are valid. */
#undef YY_INPUT
#define YY_INPUT(buf,result,max_size) yy_input(buf, &result, max_size)
-#undef YY_FATAL_ERROR
-#define YY_FATAL_ERROR ;
+
#define MAX_INCLUDE_DEPTH 10
-YY_BUFFER_STATE include_stack[MAX_INCLUDE_DEPTH];
-char *file_name_stack[MAX_INCLUDE_DEPTH];
-unsigned int include_stack_ptr = 0;
+static YY_BUFFER_STATE include_stack[MAX_INCLUDE_DEPTH];
+static char *file_name_stack[MAX_INCLUDE_DEPTH];
+static unsigned int include_stack_ptr = 0;
+
+static YY_BUFFER_STATE yy_create_string_buffer PARAMS ((const char *string,
+ size_t size));
+static void yy_input PARAMS ((char *, int *result, int max_size));
+static void comment PARAMS ((void));
+static void lex_warn_invalid PARAMS ((char *where, char *what));
/* STATES
- COMMAND on command line
- COMMENT in a C comment
- EXPRESSION definiatelyt in an expression
- SCRIPT definately in a script
- SOMEWHERE either EXPRESSION or SCRIPT
+ EXPRESSION definitely in an expression
+ SCRIPT definitely in a script
+ BOTH either EXPRESSION or SCRIPT
+ DEFSYMEXP in an argument to -defsym
MRI in an MRI script
*/
#define RTOKEN(x) { yylval.token = x; return x; }
+
+/* Some versions of flex want this. */
+#ifndef yywrap
+int yywrap () { return 1; }
+#endif
%}
%a 4000
SYMBOLCHARN [_a-zA-Z\/\.\\0-9]
FILENAMECHAR [_a-zA-Z0-9\/\.\-\_\+\=\$\:\[\]\\\,\~]
FILENAME {FILENAMECHAR}+
-WHITE [ \t\n]+
+WHITE [ \t\n\r]+
NOCFILENAMECHAR [_a-zA-Z0-9\/\.\-\_\+\$\:\[\]\\\~]
-%s COMMAND
%s SCRIPT
%s EXPRESSION
-%s COMMENT
%s BOTH
%s DEFSYMEXP
%s MRI
%%
+ if (parser_input != input_selected)
+ {
+ /* The first token of the input determines the initial parser state. */
+ input_type t = parser_input;
+ parser_input = input_selected;
+ switch (t)
+ {
+ case input_script: return INPUT_SCRIPT; break;
+ case input_mri_script: return INPUT_MRI_SCRIPT; break;
+ case input_defsym: return INPUT_DEFSYM; break;
+ default: abort ();
+ }
+ }
-<BOTH,SCRIPT,EXPRESSION,COMMAND>"/*" { comment(); }
+<BOTH,SCRIPT,EXPRESSION>"/*" { comment(); }
<DEFSYMEXP>"-" { RTOKEN('-');}
<DEFSYMEXP>"+" { RTOKEN('+');}
<DEFSYMEXP>{FILENAMECHAR1}{SYMBOLCHARN}* { yylval.name = buystring(yytext); return NAME; }
-<DEFSYMEXP>[ \t] { RTOKEN(DEFSYMEND); }
<DEFSYMEXP>"=" { RTOKEN('='); }
-<COMMAND>"--help" { return OPTION_help; }
-<COMMAND>"--version" { return OPTION_version; }
-<COMMAND>"-defsym"{WHITE}* { return OPTION_defsym; }
-<COMMAND>"-format" { return OPTION_format; }
-<COMMAND>"-noinhibit-exec" { return OPTION_noinhibit_exec; }
-<COMMAND>"-noinhibit_exec" { return OPTION_noinhibit_exec; }
-<COMMAND>"-oformat" { return OPTION_oformat; }
-<COMMAND>"-sort-common" { return OPTION_sort_common;}
-<COMMAND>"-sort_common" { return OPTION_sort_common;}
-<COMMAND>"-warn-common" { return OPTION_warn_common;}
-<COMMAND>"-n" { return OPTION_n; }
-<COMMAND>"-N" { return OPTION_N; }
-<COMMAND>"-r" { return OPTION_r; }
-<COMMAND>"-relax" { return OPTION_relax; }
-<COMMAND>"-i" { return OPTION_r; }
-<COMMAND>"-Ur" { return OPTION_Ur; }
-<COMMAND>"-o" { return OPTION_o; }
-<COMMAND>"-g" { return OPTION_g; }
-<COMMAND>"-e" { return OPTION_e; }
-<COMMAND>"-b" { return OPTION_b; }
-<COMMAND>"-dc" { return OPTION_dc; }
-<COMMAND>"-dp" { return OPTION_dp; }
-<COMMAND>"-d" { return OPTION_d; }
-<COMMAND>"-v" { return OPTION_v; }
-<COMMAND>"-V" { return OPTION_V; }
-<COMMAND>"-m" { return OPTION_m; }
-<COMMAND>"-m"{FILENAME} { return OPTION_memul; }
-<COMMAND>"-M" { return OPTION_M; }
-<COMMAND>"-Map" { return OPTION_Map;}
-<COMMAND>"-t" { return OPTION_t; }
-<COMMAND>"-X" { return OPTION_X; }
-<COMMAND>"-x" { return OPTION_x; }
-<COMMAND>"-c" { return OPTION_c; }
-<COMMAND>"-R" { return OPTION_R; }
-<COMMAND>"-u" { return OPTION_u; }
-<COMMAND>"-s" { return OPTION_s; }
-<COMMAND>"-S" { return OPTION_S; }
-<COMMAND>"-Bstat" { return OPTION_Bstatic; }
-<COMMAND>"-B"{FILENAME} { /* Ignored */ }
-<COMMAND>"-l"{FILENAME} {
- yylval.name = buystring(yytext+2);
- return OPTION_l;
- }
-
-<COMMAND>"-L"{FILENAME} {
- yylval.name = buystring(yytext+2);
- return OPTION_Lfile;
- }
-<COMMAND>"-L" { return OPTION_L; }
-<COMMAND>"-Ttext" {
- yylval.name = ".text";
- return OPTION_Texp;
- }
-<COMMAND>"-Tdata" {
- yylval.name = ".data";
- return OPTION_Texp;
- }
-<COMMAND>"-Tbss" {
- yylval.name = ".bss";
- return OPTION_Texp;
- }
-<COMMAND>"-O"{FILENAME} {
- yylval.name = buystring(yytext+2);
- return OPTION_Texp;
- }
-
-<COMMAND>"-T"{FILENAME} {
- yylval.name = buystring(yytext+2);
- return OPTION_Tfile;
- }
-<COMMAND>"-T" {
- return OPTION_T;
- }
-
-<COMMAND>"-F"{FILENAME} {
- return OPTION_F;
- }
-<COMMAND>"-F" {
- return OPTION_F;
- }
-
-<COMMAND>"-y"{FILENAME} {
- yylval.name = buystring(yytext+2);
- return OPTION_y;
- }
-
-<COMMAND>"-A"{FILENAME} {
- yylval.name = buystring(yytext+2);
- return OPTION_Aarch;
- }
-
-<COMMAND>"-retain-symbols-file" { return OPTION_RETAIN_SYMBOLS_FILE; }
-
-<COMMAND>"-EB" {
- return OPTION_EB;
- }
-<COMMAND>"-EL" {
- return OPTION_EL;
- }
-<COMMAND>"-G" {
- return OPTION_G;
- }
-<COMMAND>"-G"([0-9])+ {
- yylval.integer = atoi (yytext + 2);
- return OPTION_Gval;
- }
-
-<COMMAND>"-Qy" { return OPTION_Qy; }
-<COMMAND>"-dn" { return OPTION_dn; }
-<COMMAND>"-Y" { return OPTION_Y; }
-<COMMAND>"-YP,"{FILENAME} {
- yylval.name = buystring (yytext+4);
- return OPTION_YP;
- }
<MRI,EXPRESSION>"$"([0-9A-Fa-f])+ {
- yylval.integer = strtoul(yytext+1, 0,16);
+ yylval.integer = bfd_scan_vma (yytext+1, 0,16);
return INT;
}
<MRI,EXPRESSION>([0-9A-Fa-f])+(H|X|B|O|D) {
- int base ;
+ int ibase ;
switch (yytext[yyleng-1]) {
case 'X':
case 'H':
- base = 16;
+ ibase = 16;
break;
case 'O':
- base = 8;
+ ibase = 8;
break;
case 'B':
- base = 2;
+ ibase = 2;
break;
default:
- base = 10;
+ ibase = 10;
}
- yylval.integer = strtoul(yytext+1, 0, base);
+ yylval.integer = bfd_scan_vma (yytext+1, 0,
+ ibase);
return INT;
}
<SCRIPT,DEFSYMEXP,MRI,BOTH,EXPRESSION>"$"?"0x"?([0-9A-Fa-f])+(M|K|m|k)? {
- yylval.integer = strtoul(yytext,0,hex_mode);
+ yylval.integer = bfd_scan_vma (yytext, 0,
+ hex_mode);
if (yytext[yyleng-1]=='M'
|| yytext[yyleng-1] == 'm') {
yylval.integer *= 1024*1024;
<BOTH,SCRIPT,EXPRESSION>"/" { RTOKEN('/');}
<BOTH,SCRIPT,EXPRESSION>"%" { RTOKEN('%');}
<BOTH,SCRIPT,EXPRESSION>"<" { RTOKEN('<');}
-<BOTH,SCRIPT,EXPRESSION>">" { RTOKEN('>');}
<MRI,BOTH,SCRIPT,EXPRESSION>"=" { RTOKEN('=');}
<BOTH,SCRIPT,EXPRESSION>"}" { RTOKEN('}') ; }
<BOTH,SCRIPT,EXPRESSION>"{" { RTOKEN('{'); }
<BOTH,SCRIPT,EXPRESSION>")" { RTOKEN(')');}
<BOTH,SCRIPT,EXPRESSION>"(" { RTOKEN('(');}
-<BOTH,SCRIPT,EXPRESSION>"]" { RTOKEN(']');}
-<BOTH,SCRIPT,EXPRESSION>"[" { RTOKEN('[');}
<BOTH,SCRIPT,EXPRESSION>":" { RTOKEN(':'); }
<BOTH,SCRIPT,EXPRESSION>";" { RTOKEN(';');}
-<BOTH,SCRIPT,EXPRESSION>"-" { RTOKEN('-');}
-<BOTH,SCRIPT,EXPRESSION>"/" { RTOKEN('/');}
<BOTH,SCRIPT>"MEMORY" { RTOKEN(MEMORY);}
<BOTH,SCRIPT>"ORIGIN" { RTOKEN(ORIGIN);}
<BOTH,SCRIPT>"BLOCK" { RTOKEN(BLOCK);}
<BOTH,SCRIPT>"HLL" { RTOKEN(HLL);}
<BOTH,SCRIPT>"SYSLIB" { RTOKEN(SYSLIB);}
<BOTH,SCRIPT>"FLOAT" { RTOKEN(FLOAT);}
+<BOTH,SCRIPT>"QUAD" { RTOKEN( QUAD);}
<BOTH,SCRIPT>"LONG" { RTOKEN( LONG);}
<BOTH,SCRIPT>"SHORT" { RTOKEN( SHORT);}
<BOTH,SCRIPT>"BYTE" { RTOKEN( BYTE);}
<BOTH,SCRIPT>"len" { RTOKEN( LENGTH);}
<BOTH,SCRIPT>"INCLUDE" { RTOKEN(INCLUDE);}
<EXPRESSION,BOTH,SCRIPT>"AT" { RTOKEN(AT);}
+<BOTH,SCRIPT>"PROVIDE" { RTOKEN(PROVIDE); }
<MRI>"\n" { ++ lineno; RTOKEN(NEWLINE); }
+<MRI>"\r" { ++ lineno; RTOKEN(NEWLINE); }
<MRI>"*".* { /* Mri comment line */ }
<MRI>"END" { RTOKEN(ENDWORD); }
<MRI>"ALIGNMOD" { RTOKEN(ALIGNMOD);}
<MRI>"sect" { RTOKEN(SECT); }
<EXPRESSION,BOTH,SCRIPT,MRI>"absolute" { RTOKEN(ABSOLUTE); }
-<COMMAND>{CMDFILENAMECHAR1}{CMDFILENAMECHAR}* {
- yylval.name = buystring(yytext);
- return NAME;
- }
-
-
<MRI>{FILENAMECHAR1}{NOCFILENAMECHAR}* {
/* Filename without commas, needed to parse mri stuff */
yylval.name = buystring(yytext);
yylval.name = buystring(yytext);
return NAME;
}
-<SCRIPT,COMMAND>{FILENAMECHAR}* { yylval.name = buystring(yytext);
+<SCRIPT>{FILENAMECHAR}* { yylval.name = buystring(yytext);
return NAME;
}
-<EXPRESSION,BOTH,COMMAND,SCRIPT>"\""[^\"]*"\"" {
+<EXPRESSION,BOTH,SCRIPT>"\""[^\"]*"\"" {
/* No matter the state, quotes
give what's inside */
yylval.name = buystring(yytext+1);
return NAME;
}
<BOTH,SCRIPT,EXPRESSION>"\n" { lineno++;}
-<MRI,COMMAND,BOTH,SCRIPT,EXPRESSION>[ \t]
+<BOTH,SCRIPT,EXPRESSION>"\r" { lineno++;}
+<MRI,BOTH,SCRIPT,EXPRESSION>[ \t]
<<EOF>> {
- extern char *ldfile_input_filename;
include_stack_ptr--;
if (include_stack_ptr == 0)
yy_switch_to_buffer(include_stack[include_stack_ptr]);
}
- if (include_stack_ptr==1)
- {
- BEGIN(COMMAND);
- }
- else
- {
- BEGIN(SCRIPT);
- ldfile_input_filename = file_name_stack[include_stack_ptr-1];
- }
+ BEGIN(SCRIPT);
+ ldfile_input_filename = file_name_stack[include_stack_ptr-1];
return END;
}
+
+<SCRIPT,MRI>. lex_warn_invalid(" in script", yytext);
+<EXPRESSION,DEFSYMEXP,BOTH>. lex_warn_invalid(" in expression", yytext);
%%
+\f
+
+/* Switch flex to reading script file NAME, open on FILE,
+ saving the current input info on the include stack. */
void
lex_push_file (file, name)
char *name;
{
if (include_stack_ptr >= MAX_INCLUDE_DEPTH)
- {
- einfo("%F:includes nested too deeply\n");
- }
+ {
+ einfo("%F:includes nested too deeply\n");
+ }
file_name_stack[include_stack_ptr] = name;
include_stack[include_stack_ptr] = YY_CURRENT_BUFFER;
include_stack_ptr++;
yyin = file;
yy_switch_to_buffer(yy_create_buffer(yyin, YY_BUF_SIZE));
-
- BEGIN(SCRIPT);
+ BEGIN (SCRIPT);
}
-YY_BUFFER_STATE
-yy_create_string_buffer (string, size)
+/* Return a newly created flex input buffer containing STRING,
+ which is SIZE bytes long. */
+
+static YY_BUFFER_STATE
+yy_create_string_buffer (string, size)
CONST char *string;
- int size;
+ size_t size;
{
YY_BUFFER_STATE b;
- b = (YY_BUFFER_STATE) malloc( sizeof( struct yy_buffer_state ) );
+ /* Calls to m-alloc get turned by sed into xm-alloc. */
+ b = (YY_BUFFER_STATE) malloc (sizeof (struct yy_buffer_state));
b->yy_input_file = 0;
-
- if ( ! b )
- YY_FATAL_ERROR( "out of dynamic memory in yy_create_buffer()" );
-
b->yy_buf_size = size;
/* yy_ch_buf has to be 2 characters longer than the size given because
- * we need to put in 2 end-of-buffer characters.
- */
- b->yy_ch_buf = (YY_CHAR *) malloc( (unsigned) (b->yy_buf_size + 3) );
-
- if ( ! b->yy_ch_buf )
- YY_FATAL_ERROR( "out of dynamic memory in yy_create_buffer()" );
-
+ we need to put in 2 end-of-buffer characters. */
+ b->yy_ch_buf = (YY_CHAR *) malloc ((unsigned) (b->yy_buf_size + 3));
b->yy_ch_buf[0] = '\n';
- strcpy(b->yy_ch_buf+1, string);
+ strcpy (b->yy_ch_buf+1, string);
b->yy_ch_buf[size+1] = YY_END_OF_BUFFER_CHAR;
b->yy_ch_buf[size+2] = YY_END_OF_BUFFER_CHAR;
- b->yy_n_chars = size+1;
+ b->yy_n_chars = size+1;
b->yy_buf_pos = &b->yy_ch_buf[1];
-
b->yy_eof_status = EOF_NOT_SEEN;
- return ( b );
+ return b;
}
-
+/* Switch flex to reading from STRING, saving the current input info
+ on the include stack. */
void
lex_redirect (string)
- CONST char *string;
+ CONST char *string;
{
YY_BUFFER_STATE tmp;
- int len = strlen(string);
- yy_init = 0 ;
+ yy_init = 0;
if (include_stack_ptr >= MAX_INCLUDE_DEPTH)
- {
- einfo("%F: macros nested too deeply\n");
- }
+ {
+ einfo("%F: macros nested too deeply\n");
+ }
file_name_stack[include_stack_ptr] = "redirect";
include_stack[include_stack_ptr] = YY_CURRENT_BUFFER;
include_stack_ptr++;
- tmp = yy_create_string_buffer(string, len);
-
- yy_switch_to_buffer(tmp);
- BEGIN(COMMAND);
- yyout = stdout;
+ tmp = yy_create_string_buffer (string, strlen (string));
+ yy_switch_to_buffer (tmp);
+ BEGIN (SCRIPT);
}
+\f
+/* Functions to switch to a different flex start condition,
+ saving the current start condition on `state_stack'. */
-int state_stack[20];
-int *state_stack_p = state_stack;
+static int state_stack[MAX_INCLUDE_DEPTH * 2];
+static int *state_stack_p = state_stack;
void
ldlex_script ()
{
*(state_stack_p)++ = yy_start;
-
- BEGIN(SCRIPT);
+ BEGIN (SCRIPT);
}
-
void
ldlex_mri_script ()
{
*(state_stack_p)++ = yy_start;
- BEGIN(MRI);
+ BEGIN (MRI);
}
void
ldlex_defsym ()
{
*(state_stack_p)++ = yy_start;
- BEGIN(DEFSYMEXP);
+ BEGIN (DEFSYMEXP);
}
void
ldlex_expression ()
{
*(state_stack_p)++ = yy_start;
- BEGIN(EXPRESSION);
-
+ BEGIN (EXPRESSION);
}
+
void
ldlex_both ()
{
*(state_stack_p)++ = yy_start;
- BEGIN(BOTH);
-}
-void
-ldlex_command ()
-{
- *(state_stack_p)++ = yy_start;
- BEGIN(COMMAND);
+ BEGIN (BOTH);
}
void
{
yy_start = *(--state_stack_p);
}
+\f
+
+/* Place up to MAX_SIZE characters in BUF and return in *RESULT
+ either the number of characters read, or 0 to indicate EOF. */
-yy_input(buf, result, max_size)
-char *buf;
-int *result;
-int max_size;
+static void
+yy_input (buf, result, max_size)
+ char *buf;
+ int *result;
+ int max_size;
{
*result = 0;
if (yy_current_buffer->yy_input_file)
- {
- if (yyin)
- if ( (*result = read( fileno(yyin), (char *) buf, max_size )) < 0 )
- YY_FATAL_ERROR( "read() in flex scanner failed" );
- }
+ {
+ if (yyin)
+ {
+ *result = read (fileno (yyin), (char *) buf, max_size);
+ if (*result < 0)
+ einfo ("%F%P: read in flex scanner failed");
+ }
+ }
}
-static
-comment()
+/* Eat the rest of a C-style comment. */
+
+static void
+comment ()
{
int c;
+
while (1)
{
c = input();
- while (c !='*' && c != EOF)
+ while (c != '*' && c != EOF)
{
- if (c == '\n') lineno++;
+ if (c == '\n' || c == '\r')
+ lineno++;
c = input();
}
-
if (c == '*')
{
c = input();
- while ( c == '*')
+ while (c == '*')
c = input();
- if ( c == '/' )
+ if (c == '/')
break; /* found the end */
}
- if ( c == EOF )
+ if (c == '\n' || c == '\r')
+ lineno++;
+
+ if (c == EOF)
{
- einfo( "%F%P :EOF in comment\n");
+ einfo( "%F%P: EOF in comment\n");
break;
}
}
}
+
+/* Warn the user about a garbage character WHAT in the input
+ in context WHERE. */
+
+static void
+lex_warn_invalid (where, what)
+ char *where, *what;
+{
+ fprintf(stderr,
+ "%s: ignoring invalid character `%s'%s\n",
+ program_name, what, where);
+}
projects / deliverable / binutils-gdb.git / blobdiff