764 lines
14 KiB
C
764 lines
14 KiB
C
/*
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* (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
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* See the copyright notice in the ACK home directory, in the file "Copyright".
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*/
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/* $Id$ */
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/*
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Driver for the CEMCOM compiler: works like /bin/cc and accepts
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most of the options accepted by /bin/cc and /usr/em/bin/ack.
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Date written: dec 4, 1985
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Adapted for 68000 (Aug 19, 1986)
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Merged the vax and mantra versions (Nov 10, 1986)
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Author: Erik Baalbergen
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*/
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#include <stdio.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <errno.h>
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#include <signal.h>
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#define MAXARGC 256 /* maximum number of arguments allowed in a list */
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#define USTR_SIZE 1024 /* maximum length of string variable */
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struct arglist {
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int al_argc;
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char *al_argv[MAXARGC];
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};
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/* some system-dependent variables */
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char *PP = "/lib/cpp";
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char *CEM = "/usr/em/lib/em_cemcom";
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char *ENCODE = "/usr/em/lib/em_encode";
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char *DECODE = "/usr/em/lib/em_decode";
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char *OPT = "/usr/em/lib/em_opt";
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char *SHELL = "/bin/sh";
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#ifndef MANTRA
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char *CG = "/usr/em/lib/vax4/cg";
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char *AS = "/bin/as";
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char *AS_FIX = "/user1/erikb/bin/mcomm";
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char *LD = "/bin/ld";
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char *LIBDIR = "/user1/cem/lib";
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char *V_FLAG = "-Vs2.2w4.4i4.4l4.4f4.4d8.4p4.4";
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#else MANTRA
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char *CG = "/usr/em/lib/m68k2/cg";
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char *AS = "/usr/em/lib/m68k2/as";
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char *LD = "/usr/em/lib/em_led";
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char *CV = "/usr/em/lib/m68k2/cv";
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char *LIBDIR = "/usr/em/lib/m68k2";
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char *V_FLAG = "-Vs2.2w2.2i2.2l4.2f4.2d8.2p4.2";
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#endif MANTRA
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struct arglist LD_HEAD = {
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2,
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{
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#ifndef MANTRA
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"/usr/em/lib/vax4/head_em",
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"/usr/em/lib/vax4/head_cc"
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#else MANTRA
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"/usr/em/lib/m68k2/head_em",
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"/usr/em/lib/m68k2/head_cc"
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#endif MANTRA
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}
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};
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struct arglist LD_TAIL = {
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#ifndef MANTRA
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4,
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{
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"/user1/cem/lib/libc.a",
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"/user1/cem/lib/stb.o",
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"/usr/em/lib/vax4/tail_mon",
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"/usr/em/lib/vax4/tail_em"
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}
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#else MANTRA
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7,
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{
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"/usr/em/lib/m68k2/tail_cc.1s",
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"/usr/em/lib/m68k2/tail_cc.2g",
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"/usr/em/lib/m68k2/tail_cem",
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"/usr/em/lib/m68k2/tail_fp.a",
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"/usr/em/lib/m68k2/tail_em.rt",
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"/usr/em/lib/m68k2/tail_mon",
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"/usr/em/lib/m68k2/end_em"
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}
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#endif MANTRA
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};
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char *o_FILE = "a.out";
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#ifdef MANTRA
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char *cv_FILE = "cv.out";
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#endif MANTRA
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#define remove(str) (((FLAG(t) == 0) && unlink(str)), (str)[0] = '\0')
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#define cleanup(str) (str && remove(str))
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#define mkname(dst, s1, s2) mkstr(dst, (s1), (s2), 0)
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#define init(al) (al)->al_argc = 1
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#define library(nm) \
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mkstr(alloc((unsigned int)strlen(nm) + strlen(LIBDIR) + 7), \
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LIBDIR, "/lib", nm, ".a", 0)
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struct arglist SRCFILES, LDFILES, GEN_LDFILES, PP_FLAGS, CEM_FLAGS,
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OPT_FLAGS, DECODE_FLAGS, ENCODE_FLAGS, CG_FLAGS, AS_FLAGS,
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O_FLAGS, DEBUG_FLAGS, CALL_VEC;
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#ifndef MANTRA
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struct arglist LD_FLAGS;
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#else MANTRA
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struct arglist LD_FLAGS = {
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5,
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{
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"-b0:0x80000",
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"-a0:2",
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"-a1:2",
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"-a2:2",
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"-a3:2"
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}
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};
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struct arglist CV_FLAGS;
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int Nc_flag = 0;
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#endif MANTRA
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/* option naming */
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#define NAME(chr) chr
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#define FLAG(chr) NAME(chr)_flag
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int E_flag, P_flag, S_flag, c_flag, e_flag, k_flag,
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m_flag, o_flag, t_flag, v_flag;
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/* various passes */
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struct prog {
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char *p_name;
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char **p_task;
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struct arglist *p_flags;
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} ProgParts[] = {
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{ "cpp", &PP, &PP_FLAGS },
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{ "cem", &CEM, &CEM_FLAGS },
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{ "opt", &OPT, &OPT_FLAGS },
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{ "decode", &DECODE, &DECODE_FLAGS },
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{ "encode", &ENCODE, &ENCODE_FLAGS },
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{ "be", &CG, &CG_FLAGS },
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{ "cg", &CG, &CG_FLAGS },
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{ "as", &AS, &AS_FLAGS },
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{ "ld", &LD, &LD_FLAGS },
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#ifdef MANTRA
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{ "cv", &CV, &CV_FLAGS },
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#endif MANTRA
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{ 0, 0, 0 }
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};
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/* various forward declarations */
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int trap();
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char *mkstr();
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char *alloc();
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long sizeof_file();
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/* various globals */
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char *ProgCall = 0;
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int debug = 0;
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int exec = 1;
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int RET_CODE = 0;
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main(argc, argv)
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char *argv[];
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{
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char *str, **argvec, *file, *ldfile = 0;
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int count, ext;
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char Nfile[USTR_SIZE], kfile[USTR_SIZE], sfile[USTR_SIZE],
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mfile[USTR_SIZE], ofile[USTR_SIZE], BASE[USTR_SIZE];
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register struct arglist *call = &CALL_VEC;
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set_traps(trap);
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ProgCall = *argv++;
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append(&CEM_FLAGS, "-L");
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while (--argc > 0) {
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if (*(str = *argv++) != '-') {
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append(&SRCFILES, str);
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continue;
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}
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switch (str[1]) {
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case '-':
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switch (str[2]) {
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case 'C':
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case 'E':
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case 'P':
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FLAG(E) = 1;
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append(&PP_FLAGS, str);
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PP = CEM;
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FLAG(P) = (str[2] == 'P');
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break;
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default:
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append(&DEBUG_FLAGS, str);
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break;
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}
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break;
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case 'B':
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PP = CEM = &str[2];
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break;
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case 'C':
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case 'E':
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case 'P':
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FLAG(E) = 1;
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append(&PP_FLAGS, str);
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FLAG(P) = (str[1] == 'P');
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break;
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case 'c':
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if (str[2] == '.') {
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switch (str[3]) {
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case 's':
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FLAG(S) = 1;
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break;
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case 'k':
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FLAG(k) = 1;
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break;
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case 'o':
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FLAG(c) = 1;
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break;
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case 'm':
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FLAG(m) = 1;
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break;
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case 'e':
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FLAG(e) = 1;
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break;
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default:
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bad_option(str);
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}
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}
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else
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if (str[2] == '\0')
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FLAG(c) = 1;
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else
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bad_option(str);
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break;
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case 'D':
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case 'I':
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case 'U':
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append(&PP_FLAGS, str);
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break;
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case 'k':
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FLAG(k) = 1;
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break;
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case 'l':
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if (str[2] == '\0') /* no standard libraries */
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LD_HEAD.al_argc = LD_TAIL.al_argc = 0;
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else /* use library from library directory */
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append(&SRCFILES, library(&str[2]));
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break;
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case 'L': /* change default library directory */
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LIBDIR = &str[2];
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break;
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case 'm':
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FLAG(m) = 1;
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break;
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#ifdef MANTRA
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case 'N':
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switch (str[2]) {
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case 'c': /* no a.out conversion */
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Nc_flag = 1;
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break;
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case 'l': /* no default options to led */
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LD_FLAGS.al_argc = 0;
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break;
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default:
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bad_option(str);
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}
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break;
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#endif MANTRA
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case 'o':
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FLAG(o) = 1;
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if (argc-- < 0)
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bad_option(str);
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else
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o_FILE = *argv++;
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break;
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case 'O':
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append(&O_FLAGS, "-O");
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break;
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case 'R':
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if (str[2] == '\0')
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append(&CEM_FLAGS, str);
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else
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Roption(str);
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break;
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case 'S':
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FLAG(S) = 1;
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break;
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case 't':
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FLAG(t) = 1;
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break;
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case 'v': /* set debug switches */
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FLAG(v) = 1;
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switch (str[2]) {
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case 'd':
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debug = 1;
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break;
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case 'n': /* no execute */
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exec = 0;
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break;
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case '\0':
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break;
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default:
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bad_option(str);
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}
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break;
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case 'V':
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V_FLAG = str;
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break;
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default:
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append(&LD_FLAGS, str);
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}
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}
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if (debug) report("Note: debug output");
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if (exec == 0)
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report("Note: no execution");
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count = SRCFILES.al_argc;
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argvec = &(SRCFILES.al_argv[0]);
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Nfile[0] = '\0';
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while (count-- > 0) {
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basename(file = *argvec++, BASE);
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if (FLAG(E)) {
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char ifile[USTR_SIZE];
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init(call);
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append(call, PP);
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concat(call, &DEBUG_FLAGS);
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concat(call, &PP_FLAGS);
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append(call, file);
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runvec(call, FLAG(P) ? mkname(ifile, BASE, ".i") : 0);
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continue;
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}
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ext = extension(file);
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/* .c to .k and .N */
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if (ext == 'c' || ext == 'i') {
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init(call);
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append(call, CEM);
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concat(call, &DEBUG_FLAGS);
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append(call, V_FLAG);
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concat(call, &CEM_FLAGS);
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concat(call, &PP_FLAGS);
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append(call, file);
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append(call, mkname(kfile, BASE, ".k"));
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append(call, mkname(Nfile, BASE, ".N"));
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if (runvec(call, (char *)0)) {
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file = kfile;
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ext = 'k';
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if (sizeof_file(Nfile) <= 0L)
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remove(Nfile);
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}
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else {
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remove(kfile);
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remove(Nfile);
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continue;
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}
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}
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/* .e to .k */
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if (ext == 'e') {
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init(call);
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append(call, ENCODE);
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concat(call, &ENCODE_FLAGS);
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append(call, file);
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append(call, mkname(kfile, BASE, ".k"));
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if (runvec(call, (char *)0) == 0)
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continue;
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file = kfile;
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ext = 'k';
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}
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if (FLAG(k))
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continue;
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/* decode .k or .m */
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if (FLAG(e) && (ext == 'k' || ext == 'm')) {
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char efile[USTR_SIZE];
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init(call);
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append(call, DECODE);
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concat(call, &DECODE_FLAGS);
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append(call, file);
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append(call, mkname(efile, BASE, ".e"));
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runvec(call, (char *)0);
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cleanup(kfile);
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continue;
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}
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/* .k to .m */
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if (ext == 'k') {
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init(call);
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append(call, OPT);
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concat(call, &OPT_FLAGS);
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append(call, file);
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if (runvec(call, mkname(mfile, BASE, ".m")) == 0)
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continue;
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file = mfile;
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ext = 'm';
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cleanup(kfile);
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}
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if (FLAG(m))
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continue;
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/* .m to .s */
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if (ext == 'm') {
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init(call);
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append(call, CG);
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concat(call, &CG_FLAGS);
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append(call, file);
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append(call, mkname(sfile, BASE, ".s"));
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if (runvec(call, (char *)0) == 0)
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continue;
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if (Nfile[0] != '\0') {
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#ifndef MANTRA
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init(call);
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append(call, AS_FIX);
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append(call, Nfile);
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append(call, sfile);
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runvec(call, (char *)0);
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#endif MANTRA
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remove(Nfile);
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}
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cleanup(mfile);
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file = sfile;
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ext = 's';
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}
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if (FLAG(S))
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continue;
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/* .s to .o */
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if (ext == 's') {
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ldfile = FLAG(c) ?
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ofile :
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alloc((unsigned)strlen(BASE) + 3);
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init(call);
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append(call, AS);
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concat(call, &AS_FLAGS);
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#ifdef MANTRA
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append(call, "-");
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#endif MANTRA
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append(call, "-o");
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append(call, mkname(ldfile, BASE, ".o"));
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append(call, file);
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if (runvec(call, (char *)0) == 0)
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continue;
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file = ldfile;
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ext = 'o';
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cleanup(sfile);
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}
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if (FLAG(c))
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continue;
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append(&LDFILES, file);
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if (ldfile) {
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append(&GEN_LDFILES, ldfile);
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ldfile = 0;
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}
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}
|
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/* *.o to a.out */
|
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if (RET_CODE == 0 && LDFILES.al_argc > 0) {
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init(call);
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append(call, LD);
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concat(call, &LD_FLAGS);
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append(call, "-o");
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#ifndef MANTRA
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append(call, o_FILE);
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#else MANTRA
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append(call, Nc_flag ? o_FILE : cv_FILE);
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#endif MANTRA
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concat(call, &LD_HEAD);
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concat(call, &LDFILES);
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concat(call, &LD_TAIL);
|
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if (runvec(call, (char *)0)) {
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register i = GEN_LDFILES.al_argc;
|
|
|
|
while (i-- > 0)
|
|
remove(GEN_LDFILES.al_argv[i]);
|
|
#ifdef MANTRA
|
|
/* convert to local a.out format */
|
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if (Nc_flag == 0) {
|
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init(call);
|
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append(call, CV);
|
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concat(call, &CV_FLAGS);
|
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append(call, cv_FILE);
|
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append(call, o_FILE);
|
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if (runvec(call, (char *)0))
|
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remove(cv_FILE);
|
|
}
|
|
#endif MANTRA
|
|
}
|
|
}
|
|
exit(RET_CODE);
|
|
}
|
|
|
|
#define BUFSIZE (USTR_SIZE * MAXARGC)
|
|
char alloc_buf[BUFSIZE];
|
|
|
|
char *
|
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alloc(u)
|
|
unsigned u;
|
|
{
|
|
static char *bufptr = &alloc_buf[0];
|
|
register char *p = bufptr;
|
|
|
|
if ((bufptr += u) >= &alloc_buf[BUFSIZE])
|
|
panic("no space");
|
|
return p;
|
|
}
|
|
|
|
append(al, arg)
|
|
register struct arglist *al;
|
|
char *arg;
|
|
{
|
|
if (al->al_argc >= MAXARGC)
|
|
panic("argument list overflow");
|
|
al->al_argv[(al->al_argc)++] = arg;
|
|
}
|
|
|
|
concat(al1, al2)
|
|
struct arglist *al1, *al2;
|
|
{
|
|
register int i = al2->al_argc;
|
|
register char **p = &(al1->al_argv[al1->al_argc]);
|
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register char **q = &(al2->al_argv[0]);
|
|
|
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if ((al1->al_argc += i) >= MAXARGC)
|
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panic("argument list overflow");
|
|
while (i-- > 0)
|
|
*p++ = *q++;
|
|
}
|
|
|
|
/* The next function is a dirty old one, taking a variable number of
|
|
arguments.
|
|
Take care that the last argument is a null-valued pointer!
|
|
*/
|
|
/*VARARGS1*/
|
|
char *
|
|
mkstr(dst, arg)
|
|
char *dst, *arg;
|
|
{
|
|
char **vec = (char **) &arg;
|
|
register char *p;
|
|
register char *q = dst;
|
|
|
|
while (p = *vec++) {
|
|
while (*q++ = *p++);
|
|
q--;
|
|
}
|
|
return dst;
|
|
}
|
|
|
|
Roption(str)
|
|
char *str; /* of the form "prog=/-arg" */
|
|
{
|
|
char *eq;
|
|
char *prog, *arg;
|
|
char bc;
|
|
char *cindex();
|
|
|
|
prog = &str[2];
|
|
if (eq = cindex(prog, '='))
|
|
bc = '=';
|
|
else
|
|
if (eq = cindex(prog, '-'))
|
|
bc = '-';
|
|
else {
|
|
bad_option(str);
|
|
return;
|
|
}
|
|
*eq++ = '\0';
|
|
if (arg = eq) {
|
|
char *opt = 0;
|
|
struct prog *pp = &ProgParts[0];
|
|
|
|
if (bc == '-')
|
|
opt = mkstr(alloc((unsigned)strlen(arg) + 2),
|
|
"-", arg, 0);
|
|
while (pp->p_name) {
|
|
if (strcmp(prog, pp->p_name) == 0) {
|
|
if (opt)
|
|
append(pp->p_flags, opt);
|
|
else
|
|
*(pp->p_task) = arg;
|
|
return;
|
|
}
|
|
pp++;
|
|
}
|
|
}
|
|
bad_option(str);
|
|
}
|
|
|
|
basename(str, dst)
|
|
char *str;
|
|
register char *dst;
|
|
{
|
|
register char *p1 = str;
|
|
register char *p2 = p1;
|
|
|
|
while (*p1)
|
|
if (*p1++ == '/')
|
|
p2 = p1;
|
|
p1--;
|
|
if (*--p1 == '.') {
|
|
*p1 = '\0';
|
|
while (*dst++ = *p2++) {}
|
|
*p1 = '.';
|
|
}
|
|
else
|
|
while (*dst++ = *p2++) {}
|
|
}
|
|
|
|
int
|
|
extension(fn)
|
|
register char *fn;
|
|
{
|
|
char c;
|
|
|
|
while (*fn++) {}
|
|
fn--;
|
|
c = *--fn;
|
|
return (*--fn == '.') ? c : 0;
|
|
}
|
|
|
|
long
|
|
sizeof_file(nm)
|
|
char *nm;
|
|
{
|
|
struct stat stbuf;
|
|
|
|
if (stat(nm, &stbuf) == 0)
|
|
return stbuf.st_size;
|
|
return -1;
|
|
}
|
|
|
|
char * sysmsg[] = {
|
|
0,
|
|
"Hangup",
|
|
"Interrupt",
|
|
"Quit",
|
|
"Illegal instruction",
|
|
"Trace/BPT trap",
|
|
"IOT trap",
|
|
"EMT trap",
|
|
"Floating exception",
|
|
"Killed",
|
|
"Bus error",
|
|
"Memory fault",
|
|
"Bad system call",
|
|
"Broken pipe",
|
|
"Alarm call",
|
|
"Terminated",
|
|
"Signal 16"
|
|
};
|
|
|
|
runvec(vec, outp)
|
|
struct arglist *vec;
|
|
char *outp;
|
|
{
|
|
int status, fd;
|
|
char *task = vec->al_argv[1];
|
|
|
|
vec->al_argv[vec->al_argc] = 0;
|
|
if (FLAG(v))
|
|
print_vec(vec);
|
|
if (exec == 0)
|
|
return 1;
|
|
if (fork() == 0) { /* start up the process */
|
|
extern int errno;
|
|
if (outp) { /* redirect standard output */
|
|
close(1);
|
|
if ((fd = creat(outp, 0666)) < 0)
|
|
panic("cannot create %s", outp);
|
|
if (fd != 1)
|
|
panic("illegal redirection");
|
|
}
|
|
if (debug) report("exec %s", task);
|
|
execv(task, &(vec->al_argv[1]));
|
|
/* not an a.out file, let's try it with the SHELL */
|
|
if (debug) report("try it with %s", SHELL);
|
|
if (errno == ENOEXEC) {
|
|
vec->al_argv[0] = SHELL;
|
|
execv(SHELL, &(vec->al_argv[0]));
|
|
}
|
|
/* failed, so ... */
|
|
panic("cannot execute %s", task);
|
|
exit(1);
|
|
}
|
|
else {
|
|
int loworder, highorder, sig;
|
|
|
|
wait(&status);
|
|
loworder = status & 0377;
|
|
highorder = (status >> 8) & 0377;
|
|
if (loworder == 0) {
|
|
if (highorder)
|
|
report("%s: exit status %d", task, highorder);
|
|
return highorder ? ((RET_CODE = 1), 0) : 1;
|
|
}
|
|
else {
|
|
sig = loworder & 0177;
|
|
if (sig == 0177)
|
|
report("%s: stopped by ptrace", task);
|
|
else
|
|
if (sysmsg[sig])
|
|
report("%s: %s%s", task, sysmsg[sig],
|
|
(loworder & 0200)
|
|
? " - core dumped"
|
|
: "");
|
|
RET_CODE = 1;
|
|
return 0;
|
|
}
|
|
}
|
|
/*NOTREACHED*/
|
|
}
|
|
|
|
bad_option(str)
|
|
char *str;
|
|
{
|
|
report("bad option %s", str);
|
|
}
|
|
|
|
/*VARARGS1*/
|
|
report(fmt, a0, a1, a2, a3, a4, a5, a6, a7, a8, a9)
|
|
char *fmt;
|
|
{
|
|
fprintf(stderr, "%s: ", ProgCall);
|
|
fprintf(stderr, fmt, a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);
|
|
fprintf(stderr, "\n");
|
|
}
|
|
|
|
/*VARARGS1*/
|
|
panic(fmt, a0, a1, a2, a3, a4, a5, a6, a7, a8, a9)
|
|
char *fmt;
|
|
{
|
|
fprintf(stderr, "%s: ", ProgCall);
|
|
fprintf(stderr, fmt, a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);
|
|
fprintf(stderr, "\n");
|
|
exit(1);
|
|
}
|
|
|
|
set_traps(f)
|
|
int (*f)();
|
|
{
|
|
signal(SIGHUP, f);
|
|
signal(SIGINT, f);
|
|
signal(SIGQUIT, f);
|
|
signal(SIGALRM, f);
|
|
signal(SIGTERM, f);
|
|
}
|
|
|
|
/*ARGSUSED*/
|
|
trap(sig)
|
|
{
|
|
set_traps(SIG_IGN);
|
|
panic("Trapped");
|
|
}
|
|
|
|
print_vec(vec)
|
|
struct arglist *vec;
|
|
{
|
|
register i;
|
|
|
|
for (i = 1; i < vec->al_argc; i++)
|
|
printf("%s ", vec->al_argv[i]);
|
|
printf("\n");
|
|
}
|
|
|
|
char *
|
|
cindex(s, c)
|
|
char *s, c;
|
|
{
|
|
while (*s)
|
|
if (*s++ == c)
|
|
return s - 1;
|
|
return (char *) 0;
|
|
}
|