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cc.c
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cc.c
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/*frontend of c compiler.*/
#include "xprintf.h"
#include "nativec.h"
#include "ff.h"
#include "ff_wrap.h"
/* now we are surporting only this style.
* *.c=>*.s=>*.o=>[a.out] (compile, assemle and linking) (*.c compile mode.)
* *.o=>[a.out] (linking only) (*.o linking)
* *.c=>*.s=>*.o (compile & assemble) (-c option, output object code.)
* *.c=>*.s (just generate assemble list) (-S option, output assemble code)
*
* Another option to help development.
*
* -Dname=val define name as value.
* -Ipath define include path.
* -o name define output name. default is a.out
*
* ex.
* cc test.c
* cc test.c -c -o test.o
* cc test.o hoge.o -o hoge.out
*
* Addition, We provide NO-SDCARD mode. In this mode, we delete all procedure files,
* such *.o, *.s.
*/
#define _CC_MAX_FILENAME 64
#define _CC_MAX_INPUT_FILES 10
typedef struct{
char is_compileonly;
char is_assembleonly;
char is_onscreen;
char outputname[_CC_MAX_FILENAME];
char inputfiles[_CC_MAX_INPUT_FILES][_CC_MAX_FILENAME];
int inputnum;
} cc_t;
int strlen(const char*);
int strcpy(char *,const char *);
int smlrcmain(int argc,const char **argv);
int asmain(int argc,const char **argv);
int ldmain(int argc,const char **argv,unsigned baseaddress);
void printarg(int argc,const char **argv){
int i;
xprintf("\"");
for(i=0;i<argc;i++){
xprintf("%s ",argv[i]);
}
xprintf("\"\n");
}
int cc(int argc,const char **argv){
cc_t ccobj={0};
int i;
const char *ap;
int ret;
printarg(argc,argv);
xsprintf(ccobj.outputname,"a.out");
// step 1, args analysis.
for(i=1;i<argc;i++){
ap = argv[i];
if(ap[0]=='-'){
switch(ap[1]){
case 'p':
ccobj.is_onscreen = 1;
break;
case 'c':
ccobj.is_compileonly = 1;
break;
case 'S':
ccobj.is_assembleonly = 1;
break;
case 'o':
if(argv[i+1][0]){
strcpy(ccobj.outputname,argv[i+1]);
i++;
break;
}
default:
xprintf("unknown option%s\n",ap);
ret = -1;
goto fin;
}
}else{
xsprintf(ccobj.inputfiles[ccobj.inputnum],ap);
ccobj.inputnum++;
if(ccobj.inputnum==_CC_MAX_INPUT_FILES){
xprintf("too many input files.");
ret = -1;
goto fin;
}
}
}
if(ccobj.inputnum==0){
xprintf("input file required.\n");
ret = -1;
goto fin;
}
if(ccobj.is_compileonly&&ccobj.inputnum!=1){
xprintf("-c -o option is required just ONE source file.\n");
ret = -1;
goto fin;
}
if(!ccobj.is_onscreen){
stop_composite();
}
//step2 compilation.
int len;
char outfilename[_CC_MAX_FILENAME];
const char *varg[_CC_MAX_INPUT_FILES+3];
for(i=0;i<ccobj.inputnum;i++){
len = strlen(ccobj.inputfiles[i]);
switch(ccobj.inputfiles[i][len-1]){
case 'C':
case 'c':/* *.c file compilation*/
ccobj.inputfiles[i][len-1] = '\0';
if(!ccobj.is_compileonly)
xsprintf(outfilename, "%ss" ,ccobj.inputfiles[i]);
else
xsprintf(outfilename,"%s",ccobj.outputname);
ccobj.inputfiles[i][len-1] = 'c';
varg[0] = "smlrc";
varg[1] = ccobj.inputfiles[i];
varg[2] = outfilename;
varg[3] = "-SI";
varg[4] = "/include/";
printarg(5,varg);
if(smlrcmain(5,varg)){
ret = -2;
goto fin;
}
fcloseall();
ccobj.inputfiles[i][len-1] = 's';
case 's':
case 'S':
if(ccobj.is_assembleonly)break;
ccobj.inputfiles[i][len-1] = '\0';
xsprintf(outfilename, "%so" ,ccobj.inputfiles[i]);
ccobj.inputfiles[i][len-1] = 's';
varg[0] = "as";
varg[1] = "-o";
varg[2] = outfilename;
varg[3] = ccobj.inputfiles[i];
printarg(4,varg);
if( asmain(4,varg) ){
ret = -3;
goto fin;
}
fcloseall();
if(no_sd){
if(f_unlink(ccobj.inputfiles[i])){
printf("error while removing `%s`\n",ccobj.inputfiles[i]);
}
}
ccobj.inputfiles[i][len-1] = 'o';
break;
case 'o':
case 'O':
break;
default:
xprintf("unknown file type [%s]\n",ccobj.inputfiles[i]);
ret = -1;
goto fin;
}
}
if(ccobj.is_compileonly||ccobj.is_assembleonly){
ret = 0;
goto fin;
}
//step3 linking.
/*[exefile] [inputs] -o [output]*/
varg[0] = "ld";
varg[1] = "-o";
varg[2] = ccobj.outputname;
varg[3] = "-e";
varg[4] = "startup";
for(i=0;i<ccobj.inputnum;i++){
varg[i+5] = ccobj.inputfiles[i];
}
printarg(i+5,varg);
if(ldmain(i+5,varg,((unsigned)ARAM)+sizeof(FIL)*MAX_USER_APP_FILE)){
ret = -4;
goto fin;
}
fcloseall();
if(no_sd){
for(i=0;i<ccobj.inputnum;i++){
if(f_unlink(ccobj.inputfiles[i])){
printf("error:while removing `%s`\n",ccobj.inputfiles[i]);
}
}
}
ret = 0;
fin:
if(!ccobj.is_onscreen){
start_composite();
}
return ret;
}