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/*
Crown Copyright (c) 1997
This TenDRA(r) Computer Program is subject to Copyright
owned by the United Kingdom Secretary of State for Defence
acting through the Defence Evaluation and Research Agency
(DERA). It is made available to Recipients with a
royalty-free licence for its use, reproduction, transfer
to other parties and amendment for any purpose not excluding
product development provided that any such use et cetera
shall be deemed to be acceptance of the following conditions:-
(1) Its Recipients shall ensure that this Notice is
reproduced upon any copies or amended versions of it;
(2) Any amended version of it shall be clearly marked to
show both the nature of and the organisation responsible
for the relevant amendment or amendments;
(3) Its onward transfer from a recipient to another
party shall be deemed to be that party's acceptance of
these conditions;
(4) DERA gives no warranty or assurance as to its
quality or suitability for any purpose and DERA accepts
no liability whatsoever in relation to any use to which
it may be put.
*/
#include "config.h"
#include <signal.h>
#include "release.h"
#include "object.h"
#include "hash.h"
#include "index.h"
#include "lex.h"
#include "makefile.h"
#include "name.h"
#include "syntax.h"
#include "type.h"
#include "print.h"
#include "utility.h"
/*
SIGNAL HANDLER
This routine handles caught signals.
*/
static void handler
PROTO_N ( ( sig ) )
PROTO_T ( int sig )
{
char *s ;
hash_elem *e ;
IGNORE signal ( SIGINT, SIG_IGN ) ;
switch ( sig ) {
case SIGINT : s = "interrupt" ; break ;
case SIGSEGV : s = "segmentation violation" ; break ;
case SIGTERM : s = "termination signal" ; break ;
default : s = "unknown signal" ; break ;
}
error ( ERR_SERIOUS, "Caught %s", s ) ;
e = sort_hash ( files ) ;
while ( e ) {
object *p = e->obj ;
FILE *f = p->u.u_file ;
if ( f ) {
char *nm = p->name ;
if ( verbose ) error ( ERR_INFO, "Removing %s ...", nm ) ;
IGNORE fclose ( f ) ;
IGNORE remove ( nm ) ;
}
e = e->next ;
}
exit ( exit_status ) ;
}
/*
SEPARATE COMPILATION ROUTINE
This routine performs the separate compilation of the set object p.
*/
static void separate
PROTO_N ( ( p ) )
PROTO_T ( object *p )
{
info *i = p->u.u_info ;
static char *exec = null ;
if ( i->subset || i->file == null ) return ;
if ( exec == null ) exec = buffer + strlen ( buffer ) ;
IGNORE sprintf ( exec, "%s %s", i->api, i->file ) ;
if ( verbose > 1 ) error ( ERR_INFO, "Executing '%s' ...", buffer ) ;
if ( system ( buffer ) ) {
error ( ERR_SERIOUS, "Separate compilation of %s failed", p->name ) ;
}
return ;
}
/*
MARK A SET AS IMPLEMENTED
This routine recursively marks all implemented subsets of p.
*/
static void implement
PROTO_N ( ( p, depth ) )
PROTO_T ( object *p X int depth )
{
object *q ;
info *i = p->u.u_info ;
if ( i == null || i->implemented >= depth ) return ;
i->implemented = depth ;
for ( q = i->elements ; q != null ; q = q->next ) {
if ( q->objtype == OBJ_IMPLEMENT ) {
implement ( q->u.u_obj, depth + 1 ) ;
}
}
return ;
}
/*
MAIN ROUTINE
This is the main routine which interprets the command-line options
and calls the appropriate routines.
*/
int main
PROTO_N ( ( argc, argv ) )
PROTO_T ( int argc X char **argv )
{
int a ;
char *env ;
char *dir = "." ;
char *api = null ;
char *file = null ;
char *subset = null ;
object *commands = null ;
FILE *preproc_file = null ;
int show_index = 0 ;
boolean check_only = 0 ;
boolean preproc_input = 0 ;
boolean separate_files = 0 ;
/* Initialisation */
line_no = 1 ;
filename = "built-in definitions" ;
init_hash () ;
init_keywords () ;
init_types () ;
filename = "command line" ;
IGNORE signal ( SIGINT, handler ) ;
IGNORE signal ( SIGSEGV, handler ) ;
IGNORE signal ( SIGTERM, handler ) ;
/* Read system variables */
env = getenv ( INPUT_ENV ) ;
if ( env ) input_dir = string_copy ( env ) ;
env = getenv ( OUTPUT_ENV ) ;
if ( env ) {
output_incl_dir = string_printf ( "%s/include", env ) ;
output_incl_len = ( int ) strlen ( output_incl_dir ) + 1 ;
output_src_dir = string_printf ( "%s/src", env ) ;
output_src_len = ( int ) strlen ( output_src_dir ) + 1 ;
}
env = getenv ( INCLUDE_ENV ) ;
if ( env ) {
output_incl_dir = string_copy ( env ) ;
output_incl_len = ( int ) strlen ( output_incl_dir ) + 1 ;
}
env = getenv ( SRC_ENV ) ;
if ( env ) {
output_src_dir = string_copy ( env ) ;
output_src_len = ( int ) strlen ( output_src_dir ) + 1 ;
}
env = getenv ( COPYRIGHT_ENV ) ;
if ( env ) copyright = string_copy ( env ) ;
/* Process options */
for ( a = 1 ; a < argc ; a++ ) {
char *arg = argv [a] ;
line_no = a ;
if ( arg [0] == '-' ) {
if ( arg [1] == 'I' ) {
dir = string_printf ( "%s:%s", dir, arg + 2 ) ;
} else if ( arg [1] == 'O' ) {
output_incl_dir = arg + 2 ;
output_incl_len = ( int ) strlen ( arg + 2 ) + 1 ;
} else if ( arg [1] == 'S' ) {
output_src_dir = arg + 2 ;
output_src_len = ( int ) strlen ( arg + 2 ) + 1 ;
} else if ( arg [1] == 'C' ) {
copyright = arg + 2 ;
} else {
char *s ;
for ( s = arg + 1 ; *s ; s++ ) {
switch ( *s ) {
case 'a' : separate_files = 0 ; break ;
case 'c' : check_only = 1 ; break ;
case 'd' : restrict_depth = 0 ; break ;
case 'e' : preproc_file = stdout ; break ;
case 'f' : force_output = 1 ; break ;
case 'i' : show_index = 1 ; break ;
case 'l' : local_input = 1 ; break ;
case 'm' : show_index = 2 ; break ;
case 'n' : progdate = date_stamp ( argv [0] ) ; break ;
case 'p' : preproc_input = 1 ; break ;
case 'r' : restrict_use = 1 ; break ;
case 's' : separate_files = 1 ; break ;
case 't' : allow_long_long = 1 ; break ;
case 'u' : unique_names = 1 ; break ;
case 'v' : verbose++ ; break ;
case 'w' : warnings = 0 ; break ;
case 'V' : {
error ( ERR_INFO, "Version: %s (release %s)",
progvers, RELEASE ) ;
break ;
}
default : {
error ( ERR_WARNING, "Unknown option, -%c", *s ) ;
break ;
}
}
}
}
} else {
if ( api == null ) {
api = arg ;
} else if ( file == null ) {
file = arg ;
} else if ( subset == null ) {
subset = arg ;
} else {
error ( ERR_WARNING, "Too many arguments" ) ;
}
}
}
if ( local_input ) {
if ( subset ) error ( ERR_WARNING, "Too many arguments" ) ;
subset = file ;
file = api ;
api = LOCAL_API ;
}
if ( api == null ) error ( ERR_FATAL, "Not enough arguments" ) ;
input_dir = string_printf ( "%s:%s", dir, input_dir ) ;
if ( preproc_input ) {
/* Open preprocessed input */
if ( file != null ) error ( ERR_WARNING, "Too many arguments" ) ;
preproc_file = fopen ( api, "r" ) ;
filename = api ;
line_no = 1 ;
if ( preproc_file == null ) {
error ( ERR_FATAL, "Can't open input file" ) ;
}
} else {
/* Find the temporary file */
int n ;
if ( preproc_file == null ) {
preproc_file = tmpfile () ;
if ( preproc_file == null ) {
error ( ERR_FATAL, "Can't open temporary file" ) ;
}
}
/* Do the preprocessing */
preproc ( preproc_file, api, file, subset ) ;
n = no_errors ;
if ( n ) {
filename = null ;
error ( ERR_FATAL, "%d error(s) in preprocessor phase", n ) ;
}
if ( preproc_file == stdout ) exit ( exit_status ) ;
filename = "temporary file" ;
line_no = 1 ;
}
/* Deal with separate compilation */
if ( separate_files ) {
int n ;
hash_elem *e ;
char *s = buffer ;
IGNORE sprintf ( s, "%s ", argv [0] ) ;
for ( a = 1 ; a < argc ; a++ ) {
char *arg = argv [a] ;
if ( arg [0] == '-' ) {
s = s + strlen ( s ) ;
IGNORE sprintf ( s, "%s ", arg ) ;
}
}
s = s + strlen ( s ) ;
IGNORE strcpy ( s, "-ac " ) ;
filename = null ;
e = sort_hash ( subsets ) ;
while ( e ) {
separate ( e->obj ) ;
e = e->next ;
}
n = no_errors ;
if ( n ) {
error ( ERR_FATAL, "%d error(s) in separate compilation", n ) ;
}
exit ( exit_status ) ;
}
/* Process the input */
input_file = preproc_file ;
input_pending = LEX_EOF ;
rewind ( input_file ) ;
ADVANCE_LEXER ;
read_spec ( &commands ) ;
if ( no_errors ) {
filename = null ;
error ( ERR_FATAL, "%d error(s) in analyser phase", no_errors ) ;
}
/* Perform the output */
if ( !check_only ) {
filename = null ;
if ( commands && commands->objtype == OBJ_SET ) {
implement ( commands->u.u_obj, 1 ) ;
if ( show_index == 0 ) {
print_set ( commands, 0 ) ;
print_set ( commands, 1 ) ;
if ( file == null ) {
hash_elem *e = sort_hash ( subsets ) ;
print_makefile ( api, e, 0 ) ;
print_makefile ( api, e, 1 ) ;
}
} else {
if ( show_index == 1 ) {
print_index ( commands ) ;
} else {
print_machine_index ( commands ) ;
}
}
}
}
return ( exit_status ) ;
}