void
meta_job_finish(Job *job)
{
BuildMon *pbm;
if (job != NULL) {
pbm = &job->bm;
} else {
pbm = &Mybm;
}
if (pbm->mfp != NULL) {
meta_cmd_finish(pbm);
fclose(pbm->mfp);
pbm->mfp = NULL;
pbm->meta_fname[0] = '\0';
}
}
int
meta_job_finish(Job *job)
{
BuildMon *pbm;
int error = 0;
int x;
if (job != NULL) {
pbm = &job->bm;
} else {
pbm = &Mybm;
}
if (pbm->mfp != NULL) {
error = meta_cmd_finish(pbm);
x = fclose(pbm->mfp);
if (error == 0 && x != 0)
error = errno;
pbm->mfp = NULL;
pbm->meta_fname[0] = '\0';
}
return error;
}
/*-
*-----------------------------------------------------------------------
* CompatRunCommand --
* Execute the next command for a target. If the command returns an
* error, the node's made field is set to ERROR and creation stops.
*
* Input:
* cmdp Command to execute
* gnp Node from which the command came
*
* Results:
* 0 if the command succeeded, 1 if an error occurred.
*
* Side Effects:
* The node's 'made' field may be set to ERROR.
*
*-----------------------------------------------------------------------
*/
int
CompatRunCommand(void *cmdp, void *gnp)
{
char *cmdStart; /* Start of expanded command */
char *cp, *bp;
Boolean silent, /* Don't print command */
doIt; /* Execute even if -n */
volatile Boolean errCheck; /* Check errors */
WAIT_T reason; /* Reason for child's death */
int status; /* Description of child's death */
pid_t cpid; /* Child actually found */
pid_t retstat; /* Result of wait */
LstNode cmdNode; /* Node where current command is located */
const char ** volatile av; /* Argument vector for thing to exec */
char ** volatile mav;/* Copy of the argument vector for freeing */
int argc; /* Number of arguments in av or 0 if not
* dynamically allocated */
Boolean local; /* TRUE if command should be executed
* locally */
Boolean useShell; /* TRUE if command should be executed
* using a shell */
char * volatile cmd = (char *)cmdp;
GNode *gn = (GNode *)gnp;
silent = gn->type & OP_SILENT;
errCheck = !(gn->type & OP_IGNORE);
doIt = FALSE;
cmdNode = Lst_Member(gn->commands, cmd);
cmdStart = Var_Subst(NULL, cmd, gn, FALSE);
/*
* brk_string will return an argv with a NULL in av[0], thus causing
* execvp to choke and die horribly. Besides, how can we execute a null
* command? In any case, we warn the user that the command expanded to
* nothing (is this the right thing to do?).
*/
if (*cmdStart == '\0') {
free(cmdStart);
Error("%s expands to empty string", cmd);
return(0);
}
cmd = cmdStart;
Lst_Replace(cmdNode, cmdStart);
if ((gn->type & OP_SAVE_CMDS) && (gn != ENDNode)) {
(void)Lst_AtEnd(ENDNode->commands, cmdStart);
return(0);
}
if (strcmp(cmdStart, "...") == 0) {
gn->type |= OP_SAVE_CMDS;
return(0);
}
while ((*cmd == '@') || (*cmd == '-') || (*cmd == '+')) {
switch (*cmd) {
case '@':
silent = DEBUG(LOUD) ? FALSE : TRUE;
break;
case '-':
errCheck = FALSE;
break;
case '+':
doIt = TRUE;
if (!meta[0]) /* we came here from jobs */
Compat_Init();
break;
}
cmd++;
}
while (isspace((unsigned char)*cmd))
cmd++;
#if !defined(MAKE_NATIVE)
/*
* In a non-native build, the host environment might be weird enough
* that it's necessary to go through a shell to get the correct
* behaviour. Or perhaps the shell has been replaced with something
* that does extra logging, and that should not be bypassed.
*/
useShell = TRUE;
#else
/*
* Search for meta characters in the command. If there are no meta
* characters, there's no need to execute a shell to execute the
* command.
*/
for (cp = cmd; !meta[(unsigned char)*cp]; cp++) {
continue;
}
useShell = (*cp != '\0');
#endif
/*
* Print the command before echoing if we're not supposed to be quiet for
* this one. We also print the command if -n given.
*/
if (!silent || NoExecute(gn)) {
printf("%s\n", cmd);
fflush(stdout);
}
/*
* If we're not supposed to execute any commands, this is as far as
* we go...
*/
if (!doIt && NoExecute(gn)) {
return (0);
}
if (DEBUG(JOB))
fprintf(debug_file, "Execute: '%s'\n", cmd);
again:
if (useShell) {
/*
* We need to pass the command off to the shell, typically
* because the command contains a "meta" character.
*/
static const char *shargv[4];
shargv[0] = shellPath;
/*
* The following work for any of the builtin shell specs.
*/
if (DEBUG(SHELL))
shargv[1] = "-xc";
else
shargv[1] = "-c";
shargv[2] = cmd;
shargv[3] = NULL;
av = shargv;
argc = 0;
bp = NULL;
mav = NULL;
} else {
/*
* No meta-characters, so no need to exec a shell. Break the command
* into words to form an argument vector we can execute.
*/
mav = brk_string(cmd, &argc, TRUE, &bp);
if (mav == NULL) {
useShell = 1;
goto again;
}
av = (const char **)mav;
}
local = TRUE;
#ifdef USE_META
if (useMeta) {
meta_compat_start();
}
#endif
/*
* Fork and execute the single command. If the fork fails, we abort.
*/
cpid = vFork();
if (cpid < 0) {
Fatal("Could not fork");
}
if (cpid == 0) {
Check_Cwd(av);
Var_ExportVars();
#ifdef USE_META
if (useMeta) {
meta_compat_child();
}
#endif
if (local)
(void)execvp(av[0], (char *const *)UNCONST(av));
else
(void)execv(av[0], (char *const *)UNCONST(av));
execError("exec", av[0]);
_exit(1);
}
if (mav)
free(mav);
if (bp)
free(bp);
Lst_Replace(cmdNode, NULL);
#ifdef USE_META
if (useMeta) {
meta_compat_parent();
}
#endif
/*
* The child is off and running. Now all we can do is wait...
*/
while (1) {
while ((retstat = wait(&reason)) != cpid) {
if (retstat > 0)
JobReapChild(retstat, reason, FALSE); /* not ours? */
if (retstat == -1 && errno != EINTR) {
break;
}
}
if (retstat > -1) {
if (WIFSTOPPED(reason)) {
status = WSTOPSIG(reason); /* stopped */
} else if (WIFEXITED(reason)) {
status = WEXITSTATUS(reason); /* exited */
#if defined(USE_META) && defined(USE_FILEMON_ONCE)
if (useMeta) {
meta_cmd_finish(NULL);
}
#endif
if (status != 0) {
if (DEBUG(ERROR)) {
fprintf(debug_file, "\n*** Failed target: %s\n*** Failed command: ",
gn->name);
for (cp = cmd; *cp; ) {
if (isspace((unsigned char)*cp)) {
fprintf(debug_file, " ");
while (isspace((unsigned char)*cp))
cp++;
} else {
fprintf(debug_file, "%c", *cp);
cp++;
}
}
fprintf(debug_file, "\n");
}
printf("*** Error code %d", status);
}
} else {
status = WTERMSIG(reason); /* signaled */
printf("*** Signal %d", status);
}
if (!WIFEXITED(reason) || (status != 0)) {
if (errCheck) {
#ifdef USE_META
if (useMeta) {
meta_job_error(NULL, gn, 0, status);
}
#endif
gn->made = ERROR;
if (keepgoing) {
/*
* Abort the current target, but let others
* continue.
*/
printf(" (continuing)\n");
}
} else {
/*
* Continue executing commands for this target.
* If we return 0, this will happen...
*/
printf(" (ignored)\n");
status = 0;
}
}
break;
} else {
Fatal("error in wait: %d: %s", retstat, strerror(errno));
/*NOTREACHED*/
}
}
free(cmdStart);
return (status);
}
