char* call(register Rule_t* r, char* args) { register Var_t* v; if (r->property & P_functional) { maketop(r, 0, args); if ((v = getvar(r->name)) && *v->value) return v->value; } return 0; }
void finish(int n) { Rule_t* r; int i; /* * old error intercept */ if (!state.hold && (r = internal.error) && (r->property & (P_target|P_functional)) == P_target) { state.hold = null; if (n && error_info.errors && !state.compileonly && !state.interrupt) { if (r->status == NOTYET) maketop(r, P_dontcare|P_foreground, NiL); state.hold = 0; if (r->status == EXISTS) { r->status = NOTYET; return; } } } /* * children exit without cleanup */ if (getpid() != state.pid) _exit(n); unparse(0); switch (state.finish) { case 0: /* * disable listing and wait for any jobs to finish */ state.finish++; alarm(0); state.list = 0; message((-1, "%s cleanup", state.interrupt ? "interrupt" : n > 0 ? "error" : "normal")); complete(NiL, NiL, NiL, 0); /*FALLTHROUGH*/ case 1: /* * make the done trap */ state.finish++; if (!state.compileonly && (r = getrule(external.done))) maketop(r, P_dontcare, NiL); /*FALLTHROUGH*/ case 2: /* * make the makedone trap */ state.finish++; if (!state.compileonly && (r = getrule(external.makedone))) maketop(r, P_dontcare, NiL); /*FALLTHROUGH*/ case 3: /* * wait for any job(s) to finish */ state.finish++; complete(NiL, NiL, NiL, 0); /*FALLTHROUGH*/ case 4: /* * put all jobs in foreground and save state */ state.finish++; state.jobs = 0; savestate(); /*FALLTHROUGH*/ case 5: /* * clean up temporaries */ state.finish++; remtmp(1); /*FALLTHROUGH*/ case 6: /* * drop the coshell */ state.finish++; drop(); /*FALLTHROUGH*/ case 7: /* * dump */ state.finish++; if (state.test & 0x00002000) { Vmstat_t vs; vmstat(Vmheap, &vs); error(0, "vm region %zu segments %zu busy %zu:%zu free %zu:%zu", vs.extent, vs.n_seg, vs.n_busy, vs.s_busy, vs.n_free, vs.s_free); } dump(sfstdout, error_info.trace <= -14); /*FALLTHROUGH*/ case 8: /* * final output */ state.finish++; if (state.errors && state.keepgoing && !n) n = 1; if (state.mam.out) { if (state.mam.regress) sfprintf(state.mam.out, "%sinfo finish regression\n", state.mam.label); else if (state.mam.dynamic || *state.mam.label) sfprintf(state.mam.out, "%sinfo finish %lu %d\n", state.mam.label, CURTIME, n); } for (i = 0; i < elementsof(state.io); i++) if (state.io[i] != sfstdin && state.io[i] != sfstdout && state.io[i] != sfstderr) sfclose(state.io[i]); if (state.errors && state.keepgoing) error(2, "*** %d action%s failed", state.errors, state.errors == 1 ? null : "s"); message((-1, "%s exit", state.interrupt ? "interrupt" : n ? "error" : "normal")); break; } if (state.interrupt) { n = 3; signal(state.interrupt, SIG_DFL); kill(getpid(), state.interrupt); pause(); } exit(n); }
int main(int argc, char** argv) { register char* s; register Rule_t* r; register List_t* p; int i; int args; int trace; char* t; char* buf; char* tok; Var_t* v; Stat_t st; Stat_t ds; Sfio_t* tmp; /* * initialize dynamic globals */ version = strdup(fmtident(version)); setlocale(LC_ALL, ""); error_info.id = idname; error_info.version = version; error_info.exit = finish; error_info.auxilliary = intercept; if (pathcheck(PATHCHECK, error_info.id, NiL)) return 1; error(-99, "startup"); settypes("*?[]", C_MATCH); settypes("+-|=", C_OPTVAL); settypes(" \t\n", C_SEP); settype(0, C_SEP); settypes(" \t\v\n:+&=;\"\\", C_TERMINAL); settype(0, C_TERMINAL); settypes("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ_", C_ID1|C_ID2|C_VARIABLE1|C_VARIABLE2); settypes(".", C_VARIABLE1|C_VARIABLE2); settypes("0123456789", C_ID2|C_VARIABLE2); /* * close garbage fd's -- we'll be tidy from this point on * 3 may be /dev/tty on some systems * 0..9 for user redirection in shell * 10..19 left open by bugs in some shells * error_info.fd interited from parent * any close-on-exec fd's must have been done on our behalf */ i = 3; if (isatty(i)) i++; for (; i < 20; i++) if (i != error_info.fd && !fcntl(i, F_GETFD, 0)) close(i); /* * allocate the very temporary buffer streams */ internal.met = sfstropen(); internal.nam = sfstropen(); internal.tmp = sfstropen(); internal.val = sfstropen(); internal.wrk = sfstropen(); tmp = sfstropen(); sfstrrsrv(tmp, 2 * MAXNAME); /* * initialize the code and hash tables */ initcode(); inithash(); /* * set the default state */ state.alias = 1; state.exec = 1; state.global = 1; state.init = 1; #if DEBUG state.intermediate = 1; #endif state.io[0] = sfstdin; state.io[1] = sfstdout; state.io[2] = sfstderr; state.jobs = 1; state.pid = getpid(); state.readstate = MAXVIEW; state.scan = 1; state.start = CURTIME; state.stateview = -1; state.tabstops = 8; state.targetview = -1; #if BINDINDEX state.view[0].path = makerule("."); #else state.view[0].path = "."; #endif state.view[0].pathlen = 1; state.writeobject = state.writestate = "-"; /* * pwd initialization * * for project management, if . is group|other writeable * then change umask() for similar write protections */ buf = sfstrbase(tmp); internal.pwd = (s = getcwd(buf, MAXNAME)) ? strdup(s) : strdup("."); internal.pwdlen = strlen(internal.pwd); if (stat(".", &st)) error(3, "cannot stat ."); if (S_ISDIR(st.st_mode) && (st.st_mode & (S_IWGRP|S_IWOTH))) umask(umask(0) & ~(st.st_mode & (S_IWGRP|S_IWOTH))); /* * set some variable default values */ hashclear(table.var, HASH_ALLOCATE); setvar(external.make, argv[0], V_import); t = "lib/make"; setvar(external.lib, strdup((s = pathpath(t, argv[0], PATH_EXECUTE, buf, SF_BUFSIZE)) ? s : t), V_import); setvar(external.pwd, internal.pwd, V_import); setvar(external.version, version, V_import); hashset(table.var, HASH_ALLOCATE); /* * read the environment */ readenv(); if (v = getvar(external.nproc)) state.jobs = (int)strtol(v->value, NiL, 0); if ((v = getvar(external.pwd)) && !streq(v->value, internal.pwd)) { if (!stat(v->value, &st) && !stat(internal.pwd, &ds) && st.st_ino == ds.st_ino && st.st_dev == ds.st_dev) { free(internal.pwd); internal.pwd = strdup(v->value); internal.pwdlen = strlen(v->value); } else { v->property &= ~V_import; v->property |= V_free; v->value = strdup(internal.pwd); } } /* * initialize the internal rule pointers */ initrule(); /* * read the static initialization script */ sfputr(tmp, initstatic, -1); parse(NiL, sfstruse(tmp), "initstatic", NiL); /* * check and read the args file */ if (s = colonlist(tmp, external.args, 1, ' ')) { i = fs3d(0); tok = tokopen(s, 1); while (s = tokread(tok)) if (vecargs(vecfile(s), &argc, &argv) >= 0) break; else if (errno != ENOENT) error(1, "cannot read args file %s", s); tokclose(tok); fs3d(i); } state.argf = newof(0, int, argc, 0); /* * set the command line options * read the command line assignments * mark the command line scripts and targets */ state.init = 0; state.readonly = 1; state.argv = argv; state.argc = argc; if ((args = scanargs(state.argc, state.argv, state.argf)) < 0) return 1; state.readonly = 0; state.init = 1; if (state.base) state.readstate = 0; if (state.compileonly) { state.forceread = 1; state.virtualdot = 0; } /* * tone down the bootstrap noise */ if ((trace = error_info.trace) == -1) error_info.trace = 0; /* * check explicit environment overrides */ if (s = colonlist(tmp, external.import, 1, ' ')) { tok = tokopen(s, 1); while (s = tokread(tok)) { if (i = *s == '!') s++; if (v = getvar(s)) { if (i) v->property &= ~V_import; else v->property |= V_readonly; } } tokclose(tok); } /* * set up the traps */ inittrap(); /* * announce the version */ if (error_info.trace < 0) { errno = 0; error(error_info.trace, "%s [%d %s]", version, state.pid, timestr(state.start)); } /* * initialize the views */ state.global = 0; state.user = 1; initview(); /* * check for mam */ if (state.mam.out) { if (!state.mam.statix || *state.mam.label) error_info.write = mamerror; if (state.mam.regress || state.regress) { sfprintf(state.mam.out, "%sinfo mam %s %05d\n", state.mam.label, state.mam.type, state.mam.parent); if (state.mam.regress) sfprintf(state.mam.out, "%sinfo start regression\n", state.mam.label); } else { sfprintf(state.mam.out, "%sinfo mam %s %05d 1994-07-17 %s\n", state.mam.label, state.mam.type, state.mam.parent, version); if (!state.mam.statix || *state.mam.label) { sfprintf(state.mam.out, "%sinfo start %lu\n", state.mam.label, CURTIME); if (!state.mam.root || streq(state.mam.root, internal.pwd)) sfprintf(state.mam.out, "%sinfo pwd %s\n", state.mam.label, internal.pwd); else sfprintf(state.mam.out, "%sinfo pwd %s %s\n", state.mam.label, state.mam.root, mamname(makerule(internal.pwd))); buf = sfstrbase(tmp); if (state.fsview && !mount(NiL, buf, FS3D_GET|FS3D_ALL|FS3D_SIZE(sfstrsize(tmp)), NiL)) sfprintf(state.mam.out, "%sinfo view %s\n", state.mam.label, buf); } } } /* * read the dynamic initialization script */ if ((i = error_info.trace) > -20) error_info.trace = 0; sfputr(tmp, initdynamic, -1); parse(NiL, sfstruse(tmp), "initdynamic", NiL); error_info.trace = i; state.user = 0; state.init = 0; /* * read the explicit makefiles * readfile() handles the base and global rules * * NOTE: internal.tmplist is used to handle the effects of * load() on internal list pointers */ compref(NiL, 0); if (p = internal.makefiles->prereqs) { p = internal.tmplist->prereqs = listcopy(p); for (; p; p = p->next) readfile(p->rule->name, COMP_FILE, NiL); freelist(internal.tmplist->prereqs); internal.tmplist->prereqs = 0; } /* * if no explicit makefiles then try external.{convert,files} */ if (!state.makefile) { int sep; Sfio_t* exp; Sfio_t* imp; exp = 0; imp = sfstropen(); sep = 0; s = 0; if (*(t = getval(external.convert, VAL_PRIMARY))) { sfputr(tmp, t, 0); sfstrrsrv(tmp, MAXNAME); tok = tokopen(sfstrbase(tmp), 0); while (s = tokread(tok)) { if (!exp) exp = sfstropen(); if (t = colonlist(exp, s, 0, ' ')) { t = tokopen(t, 0); while (s = tokread(t)) { if (readfile(s, COMP_INCLUDE|COMP_DONTCARE, NiL)) break; if (sep) sfputc(imp, ','); else sep = 1; sfputr(imp, s, -1); } tokclose(t); if (s) break; } if (!(s = tokread(tok))) break; } tokclose(tok); sfstrseek(tmp, 0, SEEK_SET); } if (!s && (s = colonlist(tmp, external.files, 1, ' '))) { tok = tokopen(s, 1); while (s = tokread(tok)) { if (readfile(s, COMP_INCLUDE|COMP_DONTCARE, NiL)) break; if (sep) sfputc(imp, ','); else sep = 1; sfputr(imp, s, -1); } tokclose(tok); } if (!s) { /* * this readfile() pulls in the default base rules * that might resolve any delayed self-documenting * options in optcheck() */ if (readfile("-", COMP_FILE, NiL)) optcheck(1); if (*(s = sfstruse(imp))) error(state.errorid ? 1 : 3, "a makefile must be specified when %s omitted", s); else error(state.errorid ? 1 : 3, "a makefile must be specified"); } sfstrclose(imp); if (exp) sfstrclose(exp); } /* * validate external command line options */ optcheck(1); /* * check for listing of variable and rule definitions */ if (state.list) { dump(sfstdout, 0); return 0; } /* * check if makefiles to be compiled */ if (state.compile && !state.virtualdot && state.writeobject) { /* * make the compinit trap */ if (r = getrule(external.compinit)) { state.reading = 1; maketop(r, P_dontcare|P_foreground, NiL); state.reading = 0; } if (state.exec && state.objectfile) { message((-2, "compiling makefile input into %s", state.objectfile)); compile(state.objectfile, NiL); } /* * make the compdone trap */ if (r = getrule(external.compdone)) { state.reading = 1; maketop(r, P_dontcare|P_foreground, NiL); state.reading = 0; } } /* * makefile read cleanup */ if (state.compileonly) return 0; compref(NiL, 0); sfstrclose(tmp); state.compile = COMPILED; if (state.believe) { if (!state.maxview) state.believe = 0; else if (state.fsview) error(3, "%s: option currently works in 2d only", optflag(OPT_believe)->name); } /* * read the state file */ readstate(); /* * place the command line targets in internal.args */ if (internal.main->dynamic & D_dynamic) dynamic(internal.main); internal.args->prereqs = p = 0; for (i = args; i < state.argc; i++) if (state.argf[i] & ARG_TARGET) { List_t* q; q = cons(makerule(state.argv[i]), NiL); if (p) p = p->next = q; else internal.args->prereqs = p = q; } /* * the engine bootstrap is complete -- start user activities */ state.user = 1; /* * make the makeinit trap */ if (r = getrule(external.makeinit)) maketop(r, P_dontcare|P_foreground, NiL); /* * read the command line scripts */ for (i = args; i < state.argc; i++) if (state.argf[i] & ARG_SCRIPT) { state.reading = 1; parse(NiL, state.argv[i], "command line script", NiL); state.reading = 0; } /* * freeze the parameter files and candidate state variables */ state.user = 2; candidates(); /* * make the init trap */ if (r = getrule(external.init)) maketop(r, P_dontcare|P_foreground, NiL); /* * internal.args default to internal.main */ if (!internal.args->prereqs && internal.main->prereqs) internal.args->prereqs = listcopy(internal.main->prereqs); /* * turn up the volume again */ if (!error_info.trace) error_info.trace = trace; /* * make the prerequisites of internal.args */ if (internal.args->prereqs) while (internal.args->prereqs) { /* * we explicitly allow internal.args modifications */ r = internal.args->prereqs->rule; internal.making->prereqs = internal.args->prereqs; internal.args->prereqs = internal.args->prereqs->next; internal.making->prereqs->next = 0; maketop(r, 0, NiL); } else if (state.makefile) error(3, "%s: a main target must be specified", state.makefile); /* * finish up */ finish(0); return 0; }
int handle(void) { register int sig; register Rule_t* r; register Alarms_t* a; char* s; char* w; Var_t* v; Seconds_t t; if (!state.caught) return 0; while (state.caught) { state.caught = 0; for (sig = 1; sig <= sig_info.sigmax; sig++) if (trap.caught[sig]) { trap.caught[sig] = 0; /* * flush the output streams */ sfsync(sfstderr); sfsync(sfstdout); /* * continue if already in finish */ if (state.finish) { if (!state.interrupt) state.interrupt = sig; for (sig = 1; sig <= sig_info.sigmax; sig++) trap.caught[sig] = 0; return 0; } /* * check user trap (some cannot be trapped) */ w = 0; if (!state.compileonly) switch (sig) { case SIGALRM: s = fmtsignal(-sig); t = CURSECS; while ((a = trap.alarms) && a->time <= t) { trap.alarms = a->next; r = a->rule; a->next = trap.freealarms; trap.freealarms = a; maketop(r, (P_dontcare|P_force|P_ignore|P_repeat)|((r->property & P_make)?0:P_foreground), s); } setwakeup(); continue; default: s = fmtsignal(-sig); if ((r = catrule(external.interrupt, ".", s, 0)) || (r = getrule(external.interrupt))) { if (!(r->property & P_functional)) v = setvar(external.interrupt, s, 0); maketop(r, (P_dontcare|P_force|P_ignore|P_repeat)|((r->property & P_make)?0:P_foreground), s); if (r->property & P_functional) v = getvar(r->name); w = v->value; if (r->status == EXISTS && (streq(w, s) || streq(w, "continue"))) { message((-1, "trap %s handler %s status CONTINUE return %s", s, r->name, w)); continue; } message((-1, "trap %s handler %s status TERMINATE return %s", s, r->name, w)); } /*FALLTHROUGH*/ #ifdef SIGILL case SIGILL: #endif #ifdef SIGIOT case SIGIOT: #endif #ifdef SIGEMT case SIGEMT: #endif #ifdef SIGBUS case SIGBUS: #endif #ifdef SIGSEGV case SIGSEGV: #endif break; } /* * terminate outstanding jobs */ terminate(); /* * the interpreter resumes without exit */ if (state.interpreter) { if (state.waiting) return 1; longjmp(state.resume.label, 1); } /* * if external.interrupt=""|"exit" then exit * otherwise terminate via original signal */ if (w && (!*w || streq(w, "exit"))) state.interrupt = 0; else if (!state.interrupt) state.interrupt = sig; finish(3); /* * shouldn't get here */ exit(3); } } return 1; }
static void execute(register Joblist_t* job) { register List_t* p; char* s; char* t; int flags; Rule_t* r; Var_t* v; Sfio_t* tmp; Sfio_t* att; Sfio_t* sp; att = sfstropen(); tmp = sfstropen(); restore(job, tmp, att); job->status = RUNNING; job->target->mark &= ~M_waiting; if (state.targetcontext || state.maxview && !state.fsview && *job->target->name != '/' && (!(job->target->dynamic & D_regular) || job->target->view)) commit(job, job->target->name); if ((state.mam.dynamic || state.mam.regress) && state.user && !(job->target->property & (P_after|P_before|P_dontcare|P_make|P_state|P_virtual))) sfprintf(state.mam.out, "%sinit %s %s\n", state.mam.label, mamname(job->target), timefmt(NiL, CURTIME)); t = sfstruse(tmp); if (!(job->flags & CO_ALWAYS)) { if (state.touch) { if (state.virtualdot) { state.virtualdot = 0; lockstate(1); } if (!(job->target->property & (P_attribute|P_virtual))) { acceptrule(job->target); if ((job->target->property & (P_joint|P_target)) == (P_joint|P_target)) for (p = job->target->prereqs->rule->prereqs; p; p = p->next) if (p->rule != job->target) acceptrule(p->rule); } } else if (*t && (!state.silent || state.mam.regress)) dumpaction(state.mam.out ? state.mam.out : sfstdout, NiL, t, NiL); done(job, 0, NiL); } else { if (state.virtualdot && !notfile(job->target)) { state.virtualdot = 0; lockstate(1); } if (!state.coshell) { sp = sfstropen(); sfprintf(sp, "label=%s", idname); expand(sp, " $(" CO_ENV_OPTIONS ")"); flags = CO_ANY; if (state.cross) flags |= CO_CROSS; if (state.serialize && state.jobs > 1) flags |= CO_SERIALIZE; if (!(state.coshell = coopen(getval(CO_ENV_SHELL, VAL_PRIMARY), flags, sfstruse(sp)))) error(ERROR_SYSTEM|3, "coshell open error"); sfstrclose(sp); } if (p = internal.exports->prereqs) { Sfio_t* exp; exp = sfstropen(); do { if (v = getvar(p->rule->name)) { expand(exp, v->value); coexport(state.coshell, p->rule->name, sfstruse(exp)); } else if (s = strchr(p->rule->name, '=')) { *s = 0; expand(exp, s + 1); coexport(state.coshell, p->rule->name, sfstruse(exp)); *s = '='; } } while (p = p->next); sfstrclose(exp); #if 0 freelist(internal.exports->prereqs); #endif internal.exports->prereqs = 0; } if (job->flags & CO_DATAFILE) { static char* dot; static char* tmp; if (job->target->property & P_read) { if (!dot) dot = pathtemp(NiL, 0, null, idname, NiL); state.tmpfile = dot; } else { if (!tmp) tmp = pathtemp(NiL, 0, NiL, idname, NiL); state.tmpfile = tmp; } } #if !_HUH_1992_02_29 /* i386 and ftx m68k dump without this statement -- help */ message((-99, "execute: %s: t=0x%08x &t=0x%08x", job->target->name, t, &t)); #endif if (state.mam.out) dumpaction(state.mam.out, MAMNAME(job->target), t, NiL); if (r = getrule(external.makerun)) maketop(r, P_dontcare|P_foreground, NiL); if (!(job->cojob = coexec(state.coshell, t, job->flags, state.tmpfile, NiL, sfstruse(att)))) error(3, "%s: cannot send action to coshell", job->target->name); job->cojob->local = (void*)job; /* * grab semaphores */ if (job->target->dynamic & D_hassemaphore) { job->flags |= CO_SEMAPHORES; for (p = job->prereqs; p; p = p->next) if (p->rule->semaphore && --p->rule->semaphore == 1) p->rule->status = MAKING; } /* * check status and sync */ if (job->target->dynamic & D_hasafter) save(job); if (job->flags & (CO_DATAFILE|CO_FOREGROUND)) { complete(job->target, NiL, NiL, 0); if (job->target->property & (P_functional|P_read)) { if (sp = sfopen(NiL, state.tmpfile, "r")) { remove(state.tmpfile); if (job->target->property & P_read) parse(sp, NiL, job->target->name, NiL); else { char* e; sfmove(sp, tmp, SF_UNBOUND, -1); t = sfstrbase(tmp); e = sfstrseek(tmp, 0, SEEK_CUR); while (e > t && *(e - 1) == '\n') e--; sfstrseek(tmp, e - t, SEEK_SET); setvar(job->target->name, sfstruse(tmp), 0); } sfclose(sp); } else error(2, "%s: cannot read temporary data output file %s", job->target->name, state.tmpfile); state.tmpfile = 0; } } } sfstrclose(att); sfstrclose(tmp); }