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#include <stdio.h>
/* Normal passes ...
* p: C preprocessor .c -> .0
* 1: cc1 .1 -> .2
* 2: opt .2 -> .3
* 3: cg .3 -> .s
* a: as .s -> .o
* l: ld .o -> .out
*
* c: Is alias for one or more of 0,1,2
* d: This command. (Semi-colon seperators)
*/
#define MAXPASSES 16
#define MAXOPTIONS 32
struct pass {
char * command;
char pass_id;
char source;
char result;
char * args;
} passes[MAXPASSES];
struct option {
char * optname;
char * subst;
} options[MAXOPTS];
/* The default argument list ... */
extern int standard_argc;
extern char ** standard_argv;
#ifdef __MSDOS__
int standard_argc = 0; /* Nothing ... use the files */
char ** standard_argv = 0;
#endif
struct { char * opt, *spec; } builtin_models[] = {
{ "-0", "i8086" }
{ "-3", "i386" }
{ "-9", "mc6809" }
{0,0}
};
/* What sort of compile ? */
char model[20] = "-";
int model_found = 0;
int args_active = 1;
/* Linker output file */
char * output_file = "a.out";
char ** file_list = 0;
int file_count = 0;
int pass_count = 0;
int opts_count = 0;
/* A temp buffer */
char little_buf[128];
main(argc, argv)
int argc;
char ** argv;
{
int ar;
/* First, is there a model ? */
/* PROBLEM: This doesn't find -b specifiers that are embedded in user opts */
for(ar=1; ar<argc; ar++)
if(argv[ar][0] == '-') switch(argv[ar][1])
{
case 'o': ar++; break;
case 'b': if(argv[ar][2]) break;
ar++;
if( argv[ar] == 0 ) fatal("-b needs specifier");
strncpy(model, argv[ar], sizeof(model)-1);
break;
default: /* Scan builtin_models */
}
/* Space for filenames */
file_list = calloc(argc, sizeof(char*));
if( file_list == 0 ) fatal("Out of memory");
/* Perhaps: make builtin_models[0].spec the default ? */
for(ar=0; ar<standard_argc; )
ar += decode_arg(standard_argv[ar], standard_argv[ar+1]);
/* The model isn't in the standard args ... */
if( !model_found )
{
strcat(little_buf, exec_paths[0]);
strcat(little_buf, "/spec");
include_file(little_buf);
}
if( !model_found && strcmp(model, "-") != 0 )
{
strcat(little_buf, exec_paths[0]);
strcat(little_buf, "/spec.");
strcat(little_buf, model);
include_file(little_buf);
}
if( !model_found ) fatal("Unable to find compiler specification");
/* Now we can do the command line for real */
for(ar=1; ar<argc; )
ar += decode_arg(argv[ar], argv[ar+1]);
/* Compile all the files to objects; save the names back in file_table */
for(ar=0; ar<file_count; ar++)
do_compile(file_table[ar]);
/* If everything was OK then find the pass with a nul result type */
if( exit_status == 0 )
do_link_command();
return exit_status;
}
decode_arg(arg1, arg2)
char * arg1;
char * arg2;
{
if(arg1[0] == '-' && arg1[2] == '\0') switch(arg1[1])
{
case 'v': verbose++; return 1;
case 'o': if( arg2 == 0 ) fatal("-o needs filename");
output_file = arg2;
return 2;
case 'b': if( arg2 == 0 ) fatal("-b needs specifier");
args_active = 1;
if( strcmp(arg2, "-") == 0)
return 2;
else if( strcmp(arg2, model) == 0)
;
else if( strcmp(model, "-") == 0)
strncpy(model, arg2, sizeof(model)-1);
else
{
args_active=0;
return 2;
}
model_found = 1;
return 2;
default: /* Lookup item in conversion table */
}
else if( args_active == 0 )
return 1;
else if(arg1[0] == '-' ) switch(arg1[1])
{
case '@': include_file(arg1+2); return 1;
case 'B': add_path(exec_path, arg1+2); return 1;
case 'W': command_W(arg1+2); return 1;
case 'T': command_T(arg1+2); return 1;
/* -T0,bcc-cc1,-0,-i,$1,$2,-o,$3 ie add standard args */
default: /* Lookup item in conversion table */
}
else
{
file_names[file_count++] = arg1;
return 1;
}
/* Do conversion ... */
/*
* 1) Locate arg in options
* 2) for each semicolon seperated item
* 3) pass it to decode_arg
* 4) remember to give it 2 args for '-b'
*
* Note: char '*' in the options table matches the rest of the arg.
*/
return 1;
}
include_file(fname)
char * fname;
{
FILE * fd;
char line_buffer[512];
char * p;
RIGHT HERE
fd = fopen(fname, "r");
if( fd == 0 ) fatal("Cannot open command line file");
while( fgets(line_buffer, sizeof(line_buffer), fd) )
{
if( line_buffer[0] == '#' ) continue;
}
fclose(fd);
}
command_T(arg1)
char * arg1;
{
/* Is it an option specifier ? */
if(arg1[0] == '-')
{
argend = strchr(arg1, ';');
}
else /* Must be a pass specifier or modifier */
{
}
}
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