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| author | Denis Vlasenko <vda.linux@googlemail.com> | 2007-04-11 07:04:23 +0000 |
|---|---|---|
| committer | Denis Vlasenko <vda.linux@googlemail.com> | 2007-04-11 07:04:23 +0000 |
| commit | 473dae080a8a0089d5d619a56d8943d131aa451e (patch) | |
| tree | 29763aae84d2c9336d9f34a5dc02c024285af60e /libbb | |
| parent | f1a7141cfcacf606ae321faa58c45617045460fe (diff) | |
| download | busybox-473dae080a8a0089d5d619a56d8943d131aa451e.tar.gz | |
add more convenient defines for [NO]MMU:
"#ifndef BB_NOMMU" is a double negative
Diffstat (limited to 'libbb')
| -rw-r--r-- | libbb/vfork_daemon_rexec.c | 25 |
1 files changed, 10 insertions, 15 deletions
diff --git a/libbb/vfork_daemon_rexec.c b/libbb/vfork_daemon_rexec.c index 64952225d..281ead4dc 100644 --- a/libbb/vfork_daemon_rexec.c +++ b/libbb/vfork_daemon_rexec.c @@ -107,15 +107,15 @@ int spawn_and_wait(char **argv) const struct bb_applet *a = find_applet_by_name(argv[0]); if (a && (a->nofork -#ifndef BB_NOMMU - || a->noexec /* NOEXEC cannot be used on NOMMU */ +#if BB_MMU + || a->noexec /* NOEXEC trick needs fork() */ #endif )) { int argc = 1; char **pp = argv; while (*++pp) argc++; -#ifndef BB_NOMMU +#if BB_MMU if (a->nofork) #endif { @@ -136,7 +136,7 @@ int spawn_and_wait(char **argv) applet_name = a->name; // what else should we save/restore? // TODO: what if applet will mangle argv vector? -// xargs needs argv untouched because it frees the vector! +// xargs needs argv untouched because it frees argv[i]! // shouldn't we pass a copy? rc = a->main(argc, argv); current_applet = old_a; @@ -152,29 +152,25 @@ int spawn_and_wait(char **argv) option_mask32 = old_m; return rc; } -#ifndef BB_NOMMU /* MMU only */ +#if BB_MMU + /* MMU only */ /* a->noexec is true */ rc = fork(); - if (rc) - goto w; + if (rc) /* parent or error */ + return wait4pid(rc); /* child */ xfunc_error_retval = EXIT_FAILURE; current_applet = a; run_current_applet_and_exit(argc, argv); #endif } +#endif /* FEATURE_PREFER_APPLETS */ rc = spawn(argv); -#ifndef BB_NOMMU - w: -#endif return wait4pid(rc); -#else /* !FEATURE_PREFER_APPLETS */ - return wait4pid(spawn(argv)); -#endif } -#ifdef BB_NOMMU +#if !BB_MMU void forkexit_or_rexec(char **argv) { pid_t pid; @@ -210,7 +206,6 @@ void forkexit_or_rexec(void) #define forkexit_or_rexec(argv) forkexit_or_rexec() #endif - /* Due to a #define in libbb.h on MMU systems we actually have 1 argument - * char **argv "vanishes" */ void bb_daemonize_or_rexec(int flags, char **argv) |