libpwdgrp: use FAST_FUNC to make "matching ABI" optimization more likely to succeed
authorDenys Vlasenko <vda.linux@googlemail.com>
Fri, 2 Jan 2015 21:31:07 +0000 (22:31 +0100)
committerDenys Vlasenko <vda.linux@googlemail.com>
Fri, 2 Jan 2015 21:31:07 +0000 (22:31 +0100)
commit908b6e5dfdbc81322680ce939e5415161c637bb4
treed3a5d43b353963cf0ac8faa79b5839c611e63c40
parent1da09cfacf1c4789cc74322857a098c2ddb06e31
libpwdgrp: use FAST_FUNC to make "matching ABI" optimization more likely to succeed

See bb_internal_get*nam_r size reduction:

function                                             old     new   delta
bb_internal_getpwent_r                               167     176      +9
getXXnam_r                                           204     206      +2
sulogin_main                                         326     325      -1
su_main                                              471     470      -1
read_line_input                                     3832    3831      -1
print_stat                                           865     864      -1
prepare_socket_fd                                    283     282      -1
load_crontab                                         777     776      -1
fork_job                                             456     455      -1
do_shm                                               884     883      -1
do_sem                                               637     636      -1
do_msg                                               783     782      -1
complete_username                                    124     123      -1
bb_internal_getgrouplist                              71      70      -1
xgetpwuid                                             27      25      -2
xgetpwnam                                             27      25      -2
xgetgrnam                                             27      25      -2
xgetgrgid                                             27      25      -2
uid2uname                                             18      16      -2
login_main                                           980     978      -2
gid2group                                             18      16      -2
get_shell_name                                        54      52      -2
change_identity                                       50      48      -2
bb_internal_initgroups                                50      48      -2
argstr                                              1261    1259      -2
print_perms                                          177     174      -3
inetd_main                                          2077    2074      -3
run_applet_no_and_exit                               446     442      -4
fileaction_setowngrp                                  89      85      -4
deluser_main                                         312     308      -4
bb_internal_getpwuid                                  19      15      -4
bb_internal_getpwnam                                  11       7      -4
bb_internal_getgrnam                                  14      10      -4
bb_internal_getgrgid                                  19      15      -4
adduser_main                                         865     861      -4
passwd_main                                          989     984      -5
get_passwd                                            97      92      -5
data_extract_all                                     887     882      -5
check_user_passwd                                    490     485      -5
get_groups                                            81      75      -6
ftpd_main                                           2178    2171      -7
bb_internal_getspnam_r                                42      18     -24
bb_internal_getpwnam_r                                39      15     -24
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/41 up/down: 11/-153)         Total: -142 bytes
   text    data     bss     dec     hex filename
 923167     928   17676  941771   e5ecb busybox_old
 923023     928   17676  941627   e5e3b busybox_unstripped

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
include/grp_.h
include/pwd_.h
include/shadow_.h
libpwdgrp/pwd_grp.c