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libbb: code shrink: introduce and use [_]exit_SUCCESS()

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function                                             old     new   delta
exit_SUCCESS                                           -       7      +7
_exit_SUCCESS                                          -       7      +7
run_pipe                                            1562    1567      +5
pseudo_exec_argv                                     399     400      +1
finish                                                86      87      +1
start_stop_daemon_main                              1109    1107      -2
shutdown_on_signal                                    38      36      -2
runsv_main                                          1662    1660      -2
redirect                                            1070    1068      -2
read_line                                             79      77      -2
pause_and_low_level_reboot                            54      52      -2
list_i2c_busses_and_exit                             483     481      -2
less_exit                                             12      10      -2
identify                                            4123    4121      -2
grep_file                                           1161    1159      -2
getty_main                                          1519    1517      -2
fsck_minix_main                                     2681    2679      -2
free_session                                         132     130      -2
fdisk_main                                          4739    4737      -2
clean_up_and_exit                                     53      51      -2
bsd_select                                          1566    1564      -2
bb_daemonize_or_rexec                                198     196      -2
------------------------------------------------------------------------------
(add/remove: 2/0 grow/shrink: 3/17 up/down: 21/-34)           Total: -13 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko
2022-01-05 22:16:06 +01:00
parent 076f5e064f
commit db5546ca10
24 changed files with 45 additions and 33 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
libbb/vfork_daemon_rexec.c
View File

@ -308,7 +308,7 @@ void FAST_FUNC bb_daemonize_or_rexec(int flags, char **argv)
/* fflush_all(); - add it in fork_or_rexec() if necessary */
if (fork_or_rexec(argv))
_exit(EXIT_SUCCESS); /* parent */
_exit_SUCCESS(); /* parent */
/* if daemonizing, detach from stdio & ctty */
setsid();
dup2(fd, 0);
@ -320,7 +320,7 @@ void FAST_FUNC bb_daemonize_or_rexec(int flags, char **argv)
// * Prevent this: stop being a session leader.
// */
// if (fork_or_rexec(argv))
// _exit(EXIT_SUCCESS); /* parent */
// _exit_SUCCESS(); /* parent */
// }
}
while (fd > 2) {

10
libbb/xfuncs.c
View File

@ -423,3 +423,13 @@ int FAST_FUNC wait4pid(pid_t pid)
return WTERMSIG(status) + 0x180;
return 0;
}
void FAST_FUNC exit_SUCCESS(void)
{
exit(EXIT_SUCCESS);
}
void FAST_FUNC _exit_SUCCESS(void)
{
_exit(EXIT_SUCCESS);
}