/* fcc/fm2/fpc Driver for fast ACK compilers. Derived from the C compiler driver from Minix. Compile this file with cc -O -I/config -DF?? driver.c where F?? is either FCC, FPC, or FM2. Install the resulting binaries in the EM bin directory. Suggested names: afcc, afm2, and afpc. */ #if FM2+FPC+FCC > 1 Something wrong here! Only one of FM2, FPC, or FCC must be defined #endif #ifdef sun3 #define MACHNAME "m68020" #define SYSNAME "sun3" #endif #ifdef vax4 #define MACHNAME "vax4" #define SYSNAME "vax4" #endif #ifdef i386 #define MACHNAME "i386" #define SYSNAME "i386" #endif #include #include #include #include #include #include #include #include #include "em_path.h" #include "system.h" #if(CHAR_BIT!=8) We do not support machines with non 8-bit characters. #endif /* Create em based compiler if otherwise not specified. * Size of EM machine depends on current machine. */ #ifndef MACHNAME #if(INT_MAX==32767) #define MACHNAME "em22" #define SYSNAME "em22" #else #define MACHNAME "em44" #define SYSNAME "em44" #endif #endif /* Version producing ACK .o files in one pass. */ #define MAXARGC 256 /* maximum number of arguments allowed in a list */ #define USTR_SIZE FILENAME_MAX /* maximum length of string variable */ typedef char USTRING[USTR_SIZE]; struct arglist { int al_argc; char *al_argv[MAXARGC]; }; #define CPP_NAME "$H/lib/ack/em_cpp" #define LD_NAME "$H/lib/ack/em_ass" #define CV_NAME "$H/lib/ack/$S/cv" static char *CPP; static char *COMP; static char *cc = "cc"; static int kids = -1; static int ecount = 0; struct arglist CPP_FLAGS = { #ifdef FCC 7, #else 13, #endif { "-D__unix", "-D_EM_WSIZE=4", "-D_EM_PSIZE=4", "-D_EM_SSIZE=2", "-D_EM_LSIZE=4", "-D_EM_FSIZE=4", "-D_EM_DSIZE=8", #ifndef FCC "-DEM_WSIZE=4", "-DEM_PSIZE=4", "-DEM_SSIZE=2", "-DEM_LSIZE=4", "-DEM_FSIZE=4", "-DEM_DSIZE=8", #endif } }; struct arglist LD_HEAD = { 2, { "$H/lib/$S/head_em", #ifdef FCC "$H/lib/$S/head_$A" #endif #ifdef FM2 "$H/lib/$S/head_m2" #endif #ifdef FPC "$H/lib/$S/head_pc" #endif }}; struct arglist LD_TAIL = { #if defined(sun3) || defined(i386) 5, #else 4, #endif { #ifdef FCC "$H/lib/$S/tail_$A", #endif #ifdef FM2 "$H/lib/$S/tail_m2", #endif #ifdef FPC "$H/lib/$S/tail_pc", #endif #if defined(sun3) || defined(i386) "$H/lib/$M/tail_fp", #endif "$H/lib/$M/tail_em", "$H/lib/$S/tail_mon", "$H/lib/$M/end_em" } }; struct arglist align = { 5, { #ifdef sun3 "-a0:4", "-a1:4", "-a2:0x20000", "-a3:4", "-b0:0x2020" #endif #ifdef vax4 "-a0:4", "-a1:4", "-a2:0x400", "-a3:4", "-b0:0" #endif #ifdef i386 "-a0:4", "-a1:4", "-a2:4", "-a3:4", "-b1:0x1880000" #endif } }; struct arglist COMP_FLAGS; static char *o_FILE = "a.out"; /* default name for executable file */ #define cleanup(str) (str && str[0] && remove(str)) #define init(al) ((al)->al_argc = 0) static char ProgCall[FILENAME_MAX]; static struct arglist SRCFILES; static struct arglist LDFILES; static int RET_CODE = 0; /* The environment variable pointing to ACK_HOME */ static char* ackhome = 0; /* The environment variable pointing to the temporary directory. */ static char* tmpdir = 0; static struct arglist LD_FLAGS; static struct arglist CALL_VEC; static int o_flag = 0; static int c_flag = 0; static int g_flag = 0; static int v_flag = 0; static int O_flag = 0; /* Only ANSI C is now supported. */ static int ansi_c = 1; char *mkstr(char *, ...); static char *alloc(unsigned int); static char *extension(char *); static char *expand_string(char *); static void error(char *, char *, char *); static void warning(char *, char *, char *); static void panic(char *); static void append(register struct arglist *, char *); static void expand(register struct arglist *); static void concat(struct arglist *, struct arglist *); static int runvec(struct arglist *, char *); static int needsprep(char *); static USTRING ofile; static USTRING BASE; static char tmp_file[L_tmpnam]; int noexec = 0; void trapcc(int sig) { cleanup(ofile); cleanup(tmp_file); if (ackhome != 0) { free(ackhome); } if (tmpdir != 0) { free(tmpdir); } exit(EXIT_FAILURE); } #ifdef FCC #define lang_suffix() "c" #define comp_name() "$H/lib/ack/em_cemcom.ansi" #define ansi_c_name() "$H/lib/ack/em_cemcom.ansi" #endif /* FCC */ #ifdef FM2 #define lang_suffix() "mod" #define comp_name() "$H/lib/ack/em_m2" #endif /* FM2 */ #ifdef FPC #define lang_suffix() "p" #define comp_name() "$H/lib/ack/em_pc" #endif /* FPC */ #ifdef FCC int lang_opt(char *str) { switch (str[1]) { case 'R': if (!ansi_c) { append(&COMP_FLAGS, str); return 1; } break; case '-': /* debug options */ append(&COMP_FLAGS, str); return 1; case 'w': /* disable warnings */ if (!ansi_c) { append(&COMP_FLAGS, str); return 1; } if (str[2]) { str[1] = '-'; append(&COMP_FLAGS, &str[1]); } else append(&COMP_FLAGS, "-a"); return 1; } return 0; } #endif /* FCC */ #ifdef FM2 int lang_opt(char *str) { switch(str[1]) { case '-': /* debug options */ case 'w': /* disable warnings */ case 'R': /* no runtime checks */ case 'W': /* add warnings */ case 'L': /* no line numbers */ case 'A': /* extra array bound checks */ case '3': /* only accept 3rd edition Modula-2 */ append(&COMP_FLAGS, str); return 1; case 'I': append(&COMP_FLAGS, str); break; /* !!! */ case 'U': /* underscores in identifiers allowed */ if (str[2] == '\0') { append(&COMP_FLAGS, str); return 1; } break; case 'e': /* local extension for Modula-2 compiler: procedure constants */ str[1] = 'l'; append(&COMP_FLAGS, str); return 1; } return 0; } #endif /* FM2 */ #ifdef FPC int lang_opt(char *str) { switch(str[1]) { case '-': /* debug options */ case 'a': /* enable assertions */ case 'd': /* allow doubles (longs) */ case 'i': /* set size of integer sets */ case 't': /* tracing */ case 'w': /* disable warnings */ case 'A': /* extra array bound checks */ case 'C': /* distinguish between lower case and upper case */ case 'L': /* no FIL and LIN instructions */ case 'R': /* no runtime checks */ append(&COMP_FLAGS, str); return 1; case 'u': case 'U': /* underscores in identifiers */ case 's': /* only compile standard pascal */ case 'c': /* C type strings */ if (str[2] == '+' && str[3] == '\0') { str[2] = 0; append(&COMP_FLAGS, str); return 1; } } return 0; } #endif /* FPC */ char* stringdup(const char* s) { if (s == NULL) return NULL; char *p = alloc(strlen(s) + sizeof(char)); strcpy(p, s); return p; } char* getackhome(void) { char *value = getenv("ACK_HOME"); if (value == NULL) { #ifndef EM_DIR panic("ACK_HOME must be set."); #else return EM_DIR; #endif } return value; } int main(int argc, char *argv[]) { char *str; char **argvec; int count; char *ext; FILE* fd; register struct arglist *call = &CALL_VEC; char *file; char *ldfile; char *INCLUDE = NULL; int compile_cnt = 0; ackhome = stringdup(getackhome()); if (ackhome == NULL) { panic("ACK_HOME Environment variable is not set."); } tmpdir = stringdup(sys_gettmpdir()); if (tmpdir == NULL) { panic("TMPDIR Environment variable is not set."); } setbuf(stdout, (char *) 0); /* get basebame of application. */ sys_basename(*argv++, ProgCall); /* get compiler to use. */ COMP = expand_string(comp_name()); /* get c pre-processor to use */ CPP = expand_string(CPP_NAME); #ifdef vax4 append(&CPP_FLAGS, "-D__vax"); #endif #ifdef sun3 append(&CPP_FLAGS, "-D__sun"); #endif #ifdef m68020 append(&CPP_FLAGS, "-D__mc68020"); append(&CPP_FLAGS, "-D__mc68000"); #endif if (signal(SIGINT, SIG_IGN) != SIG_IGN) signal(SIGINT, trapcc); if (signal(SIGTERM, SIG_IGN) != SIG_IGN) signal(SIGTERM, trapcc); while (--argc > 0) { if (*(str = *argv++) != '-') { append(&SRCFILES, str); continue; } if (lang_opt(str)) { } else switch (str[1]) { case 'c': /* stop after producing .o files */ c_flag = 1; break; case 'D': /* preprocessor #define */ case 'U': /* preprocessor #undef */ append(&CPP_FLAGS, str); break; case 'I': /* include directory */ append(&CPP_FLAGS, str); break; case 'g': /* debugger support */ append(&COMP_FLAGS, str); g_flag = 1; break; case 'o': /* target file */ if (argc-- >= 0) { o_flag = 1; o_FILE = *argv++; ext = extension(o_FILE); if (ext != o_FILE && !strcmp(ext, lang_suffix())) { error("-o would overwrite %s", o_FILE, NULL); } } break; case 'u': /* mark identifier as undefined */ append(&LD_FLAGS, str); if (argc-- >= 0) append(&LD_FLAGS, *argv++); break; case 'O': /* use built in peephole optimizer */ O_flag = 1; break; case 'v': /* verbose */ v_flag++; if (str[2] == 'n') noexec = 1; break; case 'l': /* library file */ append(&SRCFILES, str); break; case 'M': /* use other compiler (for testing) */ free(COMP); COMP = alloc(strlen(str)+2-1); strcpy(COMP, str + 2); break; case 'P': /* use other cpp (for testing) */ free(CPP); CPP = alloc(strlen(str)+2-1); strcpy(CPP, str + 2); break; case 's': /* strip */ if (str[2] == '\0') { append(&LD_FLAGS, str); break; } /* fall through */ default: warning("%s flag ignored", str, NULL); break; } } if (ecount) exit(EXIT_FAILURE); count = SRCFILES.al_argc; argvec = &(SRCFILES.al_argv[0]); while (count-- > 0) { ext = extension(*argvec); if (*argvec[0] != '-' && ext != *argvec++ && (!strcmp(ext, lang_suffix()))) { compile_cnt++; } } if (compile_cnt > 1 && c_flag && o_flag) { warning("-o flag ignored", NULL, NULL); o_flag = 0; } #ifdef FM2 INCLUDE = expand_string("-I$H/lib/m2"); #endif /* FM2 */ #ifdef FCC /* INCLUDE = expand_string( ansi_c ? "-I$H/include/tail_ac" : "-I$H/include/_tail_cc"); */ INCLUDE = expand_string("-I$H/share/ack/include"); append(&COMP_FLAGS, "-L"); #endif /* FCC */ count = SRCFILES.al_argc; argvec = &(SRCFILES.al_argv[0]); /* For each source file... */ while (count-- > 0) { register char *f; sys_basename(file = *argvec++, BASE); ext = extension(file); /* if not standard input and file is equal to the supported language suffix. */ if (file[0] != '-' && ext != file && (!strcmp(ext, lang_suffix()))) { if (compile_cnt > 1) printf("%s\n", file); ldfile = c_flag ? ofile : alloc((unsigned) strlen(BASE) + 3); /**************************************************** * Run C preprocessor on the source files and save * result in temporary output file. ****************************************************/ if ( #ifdef FCC /* (!strcmp(ext, "s")) && */ #endif needsprep(file)) { if (sys_tmpnam(tmp_file)==NULL) { panic("Cannot get temporary filename."); } fd = fopen(tmp_file,"w+"); if (fd==NULL) { fclose(fd); panic("Cannot write temporary file."); } init(call); append(call, CPP); concat(call, &CPP_FLAGS); append(call, INCLUDE); append(call, file); if (runvec(call, tmp_file)==EXIT_SUCCESS) { /* The input file is now the preprocessor * output file. */ file = tmp_file; } else { remove(tmp_file); tmp_file[0] = '\0'; continue; } } /**************************************************** * Compile the source file. ****************************************************/ init(call); if (o_flag && c_flag) { f = o_FILE; } else { f = mkstr(ldfile, BASE, ".", "o", (char *) 0); } append(call, COMP); concat(call, &COMP_FLAGS); #ifdef FM2 append(call, INCLUDE); #endif append(call, file); append(call, f); if (runvec(call, (char *) 0)==EXIT_SUCCESS) { file = f; } else { remove(f); continue; } cleanup(tmp_file); tmp_file[0] = '\0'; } else if (file[0] != '-' && strcmp(ext, "o") && strcmp(ext, "a")) { warning("file with unknown suffix (%s) passed to the loader", ext, NULL); } if (c_flag) continue; /* Add the output object file to the list of files to link. */ append(&LDFILES, file); } /* *.s to a.out */ if (RET_CODE == 0 && LDFILES.al_argc > 0) { init(call); // expand(&LD_HEAD); // cc = "cc.2g"; // expand(&LD_TAIL); append(call, expand_string(LD_NAME)); // concat(call, &align); append(call, "-o"); if (sys_tmpnam(tmp_file)==NULL) { panic("Cannot get temporary filename."); } append(call, tmp_file); // concat(call, &LD_HEAD); // concat(call, &LD_FLAGS); concat(call, &LDFILES); /* if (g_flag) append(call, expand_string("$H/lib/$M/tail_db")); #ifdef FCC if (!ansi_c) append(call, expand_string("$H/lib/$S/tail_cc.1s")); #endif concat(call, &LD_TAIL);*/ if (runvec(call, (char *) 0)==EXIT_FAILURE) { cleanup(tmp_file); exit(RET_CODE); } /* init(call); append(call, expand_string(CV_NAME)); append(call, tmp_file); append(call, o_FILE); runvec(call, (char *) 0);*/ cleanup(tmp_file); } if ((LDFILES.al_argc == 0) && (SRCFILES.al_argc==0)) { panic("No input source files or input object files specified."); } exit(RET_CODE); } static int needsprep(char *name) { /* FILE *file; char fc; file = fopen(name, "r"); if (file == 0) return 0; if (fread(file, &fc, 1) != 1) fc = 0; fclose(file); return fc == '#';*/ return 1; } static char * alloc(unsigned int u) { char *p = malloc(u); if (p == NULL) panic("no space"); return p; } static char * expand_string(char *s) { char buf[1024]; register char *p = s; register char *q = &buf[0]; int expanded = 0; if (!p) return p; while (*p) { if (*p == '$') { p++; expanded = 1; switch (*p++) { case 'A': if (ansi_c) strcpy(q, "ac"); else strcpy(q, cc); break; case 'H': strcpy(q, ackhome); break; case 'M': strcpy(q, MACHNAME); break; case 'S': strcpy(q, SYSNAME); break; default: panic("internal error"); break; } while (*q) q++; } else *q++ = *p++; } if (!expanded) return s; *q++ = '\0'; /* Do not forget the missing null character. */ p = alloc((unsigned int) (q - buf)); return strcpy(p, buf); } static void append(register struct arglist *al, char *arg) { if (!arg || !*arg) return; if (al->al_argc >= MAXARGC) panic("argument list overflow"); al->al_argv[(al->al_argc)++] = arg; } static void expand(register struct arglist *al) { register int i = al->al_argc; register char **p = &(al->al_argv[0]); while (i-- > 0) { *p = expand_string(*p); p++; } } static void concat(struct arglist *al1, struct arglist *al2) { register int i = al2->al_argc; register char **p = &(al1->al_argv[al1->al_argc]); register char **q = &(al2->al_argv[0]); if ((al1->al_argc += i) >= MAXARGC) panic("argument list overflow"); while (i-- > 0) { *p++ = *q++; } } char *mkstr(char *dst, ...) { va_list ap; va_start(ap, dst); { register char *p; register char *q; q = dst; p = va_arg(ap, char *); while (p) { while ((*q++ = *p++) != 0) ; q--; p = va_arg(ap, char *); } } va_end(ap); return dst; } static char * extension(char *fn) { register char *c = fn; while (*c++) ; while (*--c != '.' && c >= fn) { } if (c++ < fn || !*c) return fn; return c; } /* Converts an argument structure to a string. * The memory allocated should be freed by * the caller. * */ char *arg2str(struct arglist *vec) { int i; unsigned int length; char *p; length = 0; for (i = 0; i < vec->al_argc; i++) { length += strlen(vec->al_argv[i]); } /* Add space character */ length += vec->al_argc * sizeof(char); p = alloc(length + sizeof(char)); *p = '\0'; for (i = 0; i < vec->al_argc; i++) { strcat(p, vec->al_argv[i]); strcat(p, " "); } return p; } /* Run the system command, and outputs to "outp" if not * NULL. */ static int runvec(struct arglist *vec, char *outp) { int status; char *p; char *redirect; redirect = NULL; /* Check if a command interpreter is available. */ if (system(NULL) == 0) { panic("No command interpreter available!"); } if(outp != NULL) { /* Don't forget the null character. */ redirect = alloc(strlen(outp)+sizeof(char)*3); strcpy(redirect,"1>"); strcat(redirect,outp); append(vec,redirect); } p = arg2str(vec); status = system(p); free(p); if (outp != NULL) { free(redirect); } if (status == 0) { RET_CODE = EXIT_SUCCESS; } else { RET_CODE = EXIT_FAILURE; } return status; } /*VARARGS1*/ static void error(char *str, char *s1, char *s2) { fprintf(stderr, "%s: ", ProgCall); fprintf(stderr, str, s1, s2); putc('\n', stderr); ecount++; } /*VARARGS1*/ static void warning(char *str, char *s1, char *s2) { fprintf(stderr, "%s: (warning) ", ProgCall); fprintf(stderr, str, s1, s2); putc('\n', stderr); } static void panic(char *str) { error(str, NULL, NULL); trapcc(SIGINT); }