loginutils/getty.c: In function ‘open_tty’:
loginutils/getty.c:224:17: warning: ignoring return value of ‘fchown’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
224 | fchown(0, 0, 0); /* 0:0 */
| ^~~~~~~~~~~~~~~
CC loginutils/login.o
loginutils/login.c: In function ‘login_main’:
loginutils/login.c:558:9: warning: ignoring return value of ‘fchown’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
558 | fchown(0, pw->pw_uid, pw->pw_gid);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
CC loginutils/passwd.o
CC loginutils/su.o
CC loginutils/sulogin.o
loginutils/sulogin.c: In function ‘sulogin_main’:
loginutils/sulogin.c:55:17: warning: ignoring return value of ‘dup’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
55 | dup(xopen(argv[0], O_RDWR));
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~
loginutils/sulogin.c:57:17: warning: ignoring return value of ‘dup’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
57 | dup(0);
| ^~~~~~
CC loginutils/vlock.o
AR loginutils/lib.a
LD mailutils/built-in.o
CC mailutils/mail.o
CC mailutils/makemime.o
mailutils/makemime.c: In function ‘makemime_main’:
mailutils/makemime.c:204:17: warning: ignoring return value of ‘freopen’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
204 | freopen(opt_output, "w", stdout);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
CC mailutils/popmaildir.o
CC mailutils/reformime.o
CC mailutils/sendmail.o
AR mailutils/lib.a
LD miscutils/built-in.o
CC miscutils/adjtimex.o
CC miscutils/ascii.o
CC miscutils/bc.o
CC miscutils/beep.o
CC miscutils/chat.o
CC miscutils/conspy.o
CC miscutils/crond.o
CC miscutils/crontab.o
miscutils/crontab.c: In function ‘crontab_main’:
miscutils/crontab.c:161:17: warning: ignoring return value of ‘fchown’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
161 | fchown(src_fd, pas->pw_uid, pas->pw_gid);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
CC miscutils/devmem.o
CC miscutils/fbsplash.o
CC miscutils/hdparm.o
CC miscutils/hexedit.o
CC miscutils/i2c_tools.o
miscutils/i2c_tools.c: In function ‘list_i2c_busses_and_exit’:
miscutils/i2c_tools.c:1152:46: warning: ‘%s’ directive output may be truncated writing up to 255 bytes into a region of size 236 [-Wformat-truncation=]
1152 | snprintf(path, NAME_MAX, "%s/%s/name",
| ^~
In file included from /usr/arm-linux-gnueabi/include/stdio.h:980,
from include/libbb.h:31,
from miscutils/i2c_tools.c:66:
In function ‘snprintf’,
inlined from ‘list_i2c_busses_and_exit’ at miscutils/i2c_tools.c:1152:3:
/usr/arm-linux-gnueabi/include/bits/stdio2.h:54:10: note: ‘__builtin___snprintf_chk’ output between 25 and 280 bytes into a destination of size 255
54 | return __builtin___snprintf_chk (__s, __n, __USE_FORTIFY_LEVEL - 1,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
55 | __glibc_objsize (__s), __fmt,
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
56 | __va_arg_pack ());
| ~~~~~~~~~~~~~~~~~
miscutils/i2c_tools.c: In function ‘list_i2c_busses_and_exit’:
miscutils/i2c_tools.c:1157:38: warning: ‘%s’ directive output may be truncated writing up to 255 bytes into a region of size 236 [-Wformat-truncation=]
1157 | "%s/%s/device/name",
| ^~
In function ‘snprintf’,
inlined from ‘list_i2c_busses_and_exit’ at miscutils/i2c_tools.c:1156:4:
/usr/arm-linux-gnueabi/include/bits/stdio2.h:54:10: note: ‘__builtin___snprintf_chk’ output between 32 and 287 bytes into a destination of size 255
54 | return __builtin___snprintf_chk (__s, __n, __USE_FORTIFY_LEVEL - 1,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
55 | __glibc_objsize (__s), __fmt,
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
56 | __va_arg_pack ());
| ~~~~~~~~~~~~~~~~~
miscutils/i2c_tools.c: In function ‘list_i2c_busses_and_exit’:
miscutils/i2c_tools.c:1165:38: warning: ‘%s’ directive output may be truncated writing up to 255 bytes into a region of size 236 [-Wformat-truncation=]
1165 | "%s/%s/device/name",
| ^~
In function ‘snprintf’,
inlined from ‘list_i2c_busses_and_exit’ at miscutils/i2c_tools.c:1164:4:
/usr/arm-linux-gnueabi/include/bits/stdio2.h:54:10: note: ‘__builtin___snprintf_chk’ output between 32 and 287 bytes into a destination of size 255
54 | return __builtin___snprintf_chk (__s, __n, __USE_FORTIFY_LEVEL - 1,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
55 | __glibc_objsize (__s), __fmt,
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
56 | __va_arg_pack ());
| ~~~~~~~~~~~~~~~~~
miscutils/i2c_tools.c: In function ‘list_i2c_busses_and_exit’:
miscutils/i2c_tools.c:1177:54: warning: ‘%s’ directive output may be truncated writing up to 255 bytes into a region of size 236 [-Wformat-truncation=]
1177 | "%s/%s/device/%s/name",
| ^~
In function ‘snprintf’,
inlined from ‘list_i2c_busses_and_exit’ at miscutils/i2c_tools.c:1176:6:
/usr/arm-linux-gnueabi/include/bits/stdio2.h:54:10: note: ‘__builtin___snprintf_chk’ output between 33 and 543 bytes into a destination of size 255
54 | return __builtin___snprintf_chk (__s, __n, __USE_FORTIFY_LEVEL - 1,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
55 | __glibc_objsize (__s), __fmt,
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
56 | __va_arg_pack ());
| ~~~~~~~~~~~~~~~~~
CC miscutils/less.o
CC miscutils/lsscsi.o
CC miscutils/makedevs.o
CC miscutils/man.o
miscutils/man.c: In function ‘run_pipe’:
miscutils/man.c:160:9: warning: ignoring return value of ‘system’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
160 | system(cmd);
| ^~~~~~~~~~~
CC miscutils/microcom.o
miscutils/microcom.c: In function ‘microcom_main’:
miscutils/microcom.c:160:25: warning: ignoring return value of ‘write’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
160 | write(sfd, &c, 1);
| ^~~~~~~~~~~~~~~~~
CC miscutils/mt.o
CC miscutils/nandwrite.o
CC miscutils/partprobe.o
CC miscutils/raidautorun.o
CC miscutils/readahead.o
CC miscutils/runlevel.o
CC miscutils/rx.o
CC miscutils/seedrng.o
CC miscutils/setfattr.o
CC miscutils/setserial.o
CC miscutils/strings.o
CC miscutils/time.o
CC miscutils/tree.o
CC miscutils/ts.o
CC miscutils/ttysize.o
CC miscutils/ubi_tools.o
CC miscutils/ubirename.o
CC miscutils/volname.o
CC miscutils/watchdog.o
miscutils/watchdog.c: In function ‘watchdog_main’:
miscutils/watchdog.c:161:17: warning: ignoring return value of ‘write’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
161 | write(3, "", 1); /* write zero byte */
| ^~~~~~~~~~~~~~~
miscutils/watchdog.c: In function ‘shutdown_watchdog’:
miscutils/watchdog.c:71:9: warning: ignoring return value of ‘write’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
71 | write(3, &V, 1); /* Magic, see watchdog-api.txt in kernel */
| ^~~~~~~~~~~~~~~
AR miscutils/lib.a
LD modutils/built-in.o
CC modutils/modinfo.o
CC modutils/modprobe-small.o
CC modutils/modutils.o
modutils/modutils.c: In function ‘filename2modname’:
modutils/modutils.c:115:1: warning: function may return address of local variable [-Wreturn-local-addr]
115 | }
| ^
modutils/modutils.c:94:14: note: declared here
94 | char local_modname[MODULE_NAME_LEN];
| ^~~~~~~~~~~~~
AR modutils/lib.a
LD networking/built-in.o
CC networking/arp.o
In file included from networking/arp.c:43:
networking/arp.c: In function ‘arp_show’:
include/libbb.h:236:28: warning: ignoring return value of ‘fgets_unlocked’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
236 | # define fgets(s,n,stream) fgets_unlocked(s,n,stream)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
networking/arp.c:430:9: note: in expansion of macro ‘fgets’
430 | fgets(line, sizeof(line), fp);
| ^~~~~
CC networking/arping.o
CC networking/brctl.o
CC networking/dnsd.o
CC networking/ether-wake.o
CC networking/ftpd.o
networking/ftpd.c: In function ‘popen_ls’:
networking/ftpd.c:718:17: warning: ignoring return value of ‘dup’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
718 | dup(STDOUT_FILENO); /* copy will become STDIN_FILENO */
| ^~~~~~~~~~~~~~~~~~
CC networking/ftpgetput.o
CC networking/hostname.o
CC networking/httpd.o
CC networking/ifconfig.o
CC networking/ifenslave.o
CC networking/ifplugd.o
CC networking/ifupdown.o
CC networking/inetd.o
CC networking/interface.o
In file included from networking/interface.c:33:
networking/interface.c: In function ‘if_readlist_proc’:
include/libbb.h:236:28: warning: ignoring return value of ‘fgets_unlocked’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
236 | # define fgets(s,n,stream) fgets_unlocked(s,n,stream)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
networking/interface.c:554:9: note: in expansion of macro ‘fgets’
554 | fgets(buf, sizeof buf, fh); /* eat line */
| ^~~~~
include/libbb.h:236:28: warning: ignoring return value of ‘fgets_unlocked’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
236 | # define fgets(s,n,stream) fgets_unlocked(s,n,stream)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
networking/interface.c:555:9: note: in expansion of macro ‘fgets’
555 | fgets(buf, sizeof buf, fh);
| ^~~~~
CC networking/ip.o
CC networking/ipcalc.o
CC networking/isrv.o
CC networking/isrv_identd.o
CC networking/nameif.o
CC networking/nbd-client.o
networking/nbd-client.c: In function ‘nbdclient_main’:
networking/nbd-client.c:281:25: warning: ignoring return value of ‘daemon’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
281 | daemon(0, 0);
| ^~~~~~~~~~~~
CC networking/nc.o
CC networking/netstat.o
CC networking/nslookup.o
networking/nslookup.c: In function ‘send_queries’:
networking/nslookup.c:622:33: warning: ignoring return value of ‘write’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
622 | write(pfd.fd, G.query[qn].query, G.query[qn].qlen);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
CC networking/ntpd.o
networking/ntpd.c: In function ‘update_local_clock’:
networking/ntpd.c:1624:49: warning: format ‘%ld’ expects argument of type ‘long int’, but argument 2 has type ‘long long int’ [-Wformat=]
1624 | bb_error_msg("p adjtimex freq:%ld offset:%+ld status:0x%x tc:%ld",
| ~~^
| |
| long int
| %lld
1625 | tmx.freq, tmx.offset, tmx.status, tmx.constant);
| ~~~~~~~~
| |
| long long int
networking/ntpd.c:1624:61: warning: format ‘%ld’ expects argument of type ‘long int’, but argument 3 has type ‘long long int’ [-Wformat=]
1624 | bb_error_msg("p adjtimex freq:%ld offset:%+ld status:0x%x tc:%ld",
| ~~~^
| |
| long int
| %+lld
1625 | tmx.freq, tmx.offset, tmx.status, tmx.constant);
| ~~~~~~~~~~
| |
| long long int
networking/ntpd.c:1624:80: warning: format ‘%ld’ expects argument of type ‘long int’, but argument 5 has type ‘long long int’ [-Wformat=]
1624 | bb_error_msg("p adjtimex freq:%ld offset:%+ld status:0x%x tc:%ld",
| ~~^
| |
| long int
| %lld
1625 | tmx.freq, tmx.offset, tmx.status, tmx.constant);
| ~~~~~~~~~~~~
| |
| long long int
networking/ntpd.c:1739:48: warning: format ‘%ld’ expects argument of type ‘long int’, but argument 3 has type ‘long long int’ [-Wformat=]
1739 | VERB4 bb_error_msg("adjtimex:%d freq:%ld offset:%+ld status:0x%x",
| ~~^
| |
| long int
| %lld
1740 | rc, tmx.freq, tmx.offset, tmx.status);
| ~~~~~~~~
| |
| long long int
networking/ntpd.c:1739:60: warning: format ‘%ld’ expects argument of type ‘long int’, but argument 4 has type ‘long long int’ [-Wformat=]
1739 | VERB4 bb_error_msg("adjtimex:%d freq:%ld offset:%+ld status:0x%x",
| ~~~^
| |
| long int
| %+lld
1740 | rc, tmx.freq, tmx.offset, tmx.status);
| ~~~~~~~~~~
| |
| long long int
CC networking/parse_pasv_epsv.o
CC networking/ping.o
CC networking/pscan.o
CC networking/route.o
CC networking/slattach.o
networking/slattach.c: In function ‘slattach_main’:
networking/slattach.c:225:17: warning: ignoring return value of ‘system’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
225 | system(extcmd);
| ^~~~~~~~~~~~~~
CC networking/ssl_client.o
CC networking/tc.o
networking/tc.c: In function ‘cbq_print_opt’:
networking/tc.c:236:27: error: ‘TCA_CBQ_MAX’ undeclared (first use in this function); did you mean ‘TCA_CBS_MAX’?
236 | struct rtattr *tb[TCA_CBQ_MAX+1];
| ^~~~~~~~~~~
| TCA_CBS_MAX
networking/tc.c:236:27: note: each undeclared identifier is reported only once for each function it appears in
networking/tc.c:249:16: error: ‘TCA_CBQ_RATE’ undeclared (first use in this function); did you mean ‘TCA_TBF_RATE64’?
249 | if (tb[TCA_CBQ_RATE]) {
| ^~~~~~~~~~~~
| TCA_TBF_RATE64
networking/tc.c:255:16: error: ‘TCA_CBQ_LSSOPT’ undeclared (first use in this function)
255 | if (tb[TCA_CBQ_LSSOPT]) {
| ^~~~~~~~~~~~~~
networking/tc.c:256:61: error: invalid application of ‘sizeof’ to incomplete type ‘struct tc_cbq_lssopt’
256 | if (RTA_PAYLOAD(tb[TCA_CBQ_LSSOPT]) < sizeof(*lss))
| ^
networking/tc.c:261:16: error: ‘TCA_CBQ_WRROPT’ undeclared (first use in this function)
261 | if (tb[TCA_CBQ_WRROPT]) {
| ^~~~~~~~~~~~~~
networking/tc.c:262:61: error: invalid application of ‘sizeof’ to incomplete type ‘struct tc_cbq_wrropt’
262 | if (RTA_PAYLOAD(tb[TCA_CBQ_WRROPT]) < sizeof(*wrr))
| ^
networking/tc.c:267:16: error: ‘TCA_CBQ_FOPT’ undeclared (first use in this function)
267 | if (tb[TCA_CBQ_FOPT]) {
| ^~~~~~~~~~~~
networking/tc.c:268:59: error: invalid application of ‘sizeof’ to incomplete type ‘struct tc_cbq_fopt’
268 | if (RTA_PAYLOAD(tb[TCA_CBQ_FOPT]) < sizeof(*fopt))
| ^
networking/tc.c:273:16: error: ‘TCA_CBQ_OVL_STRATEGY’ undeclared (first use in this function)
273 | if (tb[TCA_CBQ_OVL_STRATEGY]) {
| ^~~~~~~~~~~~~~~~~~~~
networking/tc.c:274:67: error: invalid application of ‘sizeof’ to incomplete type ‘struct tc_cbq_ovl’
274 | if (RTA_PAYLOAD(tb[TCA_CBQ_OVL_STRATEGY]) < sizeof(*ovl))
| ^
networking/tc.c:277:50: error: invalid application of ‘sizeof’ to incomplete type ‘struct tc_cbq_ovl’
277 | (unsigned) sizeof(*ovl));
| ^
networking/tc.c:293:23: error: invalid use of undefined type ‘struct tc_cbq_lssopt’
293 | if (lss && lss->flags) {
| ^~
networking/tc.c:296:24: error: invalid use of undefined type ‘struct tc_cbq_lssopt’
296 | if (lss->flags&TCF_CBQ_LSS_BOUNDED) {
| ^~
networking/tc.c:296:32: error: ‘TCF_CBQ_LSS_BOUNDED’ undeclared (first use in this function)
296 | if (lss->flags&TCF_CBQ_LSS_BOUNDED) {
| ^~~~~~~~~~~~~~~~~~~
networking/tc.c:300:24: error: invalid use of undefined type ‘struct tc_cbq_lssopt’
300 | if (lss->flags&TCF_CBQ_LSS_ISOLATED) {
| ^~
networking/tc.c:300:32: error: ‘TCF_CBQ_LSS_ISOLATED’ undeclared (first use in this function)
300 | if (lss->flags&TCF_CBQ_LSS_ISOLATED) {
| ^~~~~~~~~~~~~~~~~~~~
networking/tc.c:308:24: error: invalid use of undefined type ‘struct tc_cbq_wrropt’
308 | if (wrr->priority != TC_CBQ_MAXPRIO)
| ^~
networking/tc.c:308:38: error: ‘TC_CBQ_MAXPRIO’ undeclared (first use in this function)
308 | if (wrr->priority != TC_CBQ_MAXPRIO)
| ^~~~~~~~~~~~~~
networking/tc.c:309:46: error: invalid use of undefined type ‘struct tc_cbq_wrropt’
309 | printf("prio %u", wrr->priority);
| ^~
networking/tc.c:313:43: error: invalid use of undefined type ‘struct tc_cbq_wrropt’
313 | printf("/%u ", wrr->cpriority);
| ^~
networking/tc.c:314:32: error: invalid use of undefined type ‘struct tc_cbq_wrropt’
314 | if (wrr->weight != 1) {
| ^~
networking/tc.c:315:65: error: invalid use of undefined type ‘struct tc_cbq_wrropt’
315 | print_rate(buf, sizeof(buf), wrr->weight);
| ^~
networking/tc.c:318:32: error: invalid use of undefined type ‘struct tc_cbq_wrropt’
318 | if (wrr->allot)
| ^~
networking/tc.c:319:57: error: invalid use of undefined type ‘struct tc_cbq_wrropt’
319 | printf("allot %ub ", wrr->allot);
| ^~
networking/tc.c:236:24: warning: unused variable ‘tb’ [-Wunused-variable]
236 | struct rtattr *tb[TCA_CBQ_MAX+1];
| ^~
make[1]: *** [scripts/Makefile.build:198：networking/tc.o] 错误 1
make: *** [Makefile:744：networking] 错误 2
CC networking/tc.o
networking/tc.c: In function ‘cbq_print_opt’:
networking/tc.c:236:27: error: ‘TCA_CBQ_MAX’ undeclared (first use in this function); did you mean ‘TCA_CBS_MAX’?
236 | struct rtattr *tb[TCA_CBQ_MAX+1];
| ^~~~~~~~~~~
| TCA_CBS_MAX
networking/tc.c:236:27: note: each undeclared identifier is reported only once for each function it appears in
networking/tc.c:249:16: error: ‘TCA_CBQ_RATE’ undeclared (first use in this function); did you mean ‘TCA_TBF_RATE64’?
249 | if (tb[TCA_CBQ_RATE]) {
| ^~~~~~~~~~~~
| TCA_TBF_RATE64
networking/tc.c:255:16: error: ‘TCA_CBQ_LSSOPT’ undeclared (first use in this function)
255 | if (tb[TCA_CBQ_LSSOPT]) {
| ^~~~~~~~~~~~~~
networking/tc.c:256:61: error: invalid application of ‘sizeof’ to incomplete type ‘struct tc_cbq_lssopt’
256 | if (RTA_PAYLOAD(tb[TCA_CBQ_LSSOPT]) < sizeof(*lss))
| ^
networking/tc.c:261:16: error: ‘TCA_CBQ_WRROPT’ undeclared (first use in this function)
261 | if (tb[TCA_CBQ_WRROPT]) {
| ^~~~~~~~~~~~~~
networking/tc.c:262:61: error: invalid application of ‘sizeof’ to incomplete type ‘struct tc_cbq_wrropt’
262 | if (RTA_PAYLOAD(tb[TCA_CBQ_WRROPT]) < sizeof(*wrr))
| ^
networking/tc.c:267:16: error: ‘TCA_CBQ_FOPT’ undeclared (first use in this function)
267 | if (tb[TCA_CBQ_FOPT]) {
| ^~~~~~~~~~~~
networking/tc.c:268:59: error: invalid application of ‘sizeof’ to incomplete type ‘struct tc_cbq_fopt’
268 | if (RTA_PAYLOAD(tb[TCA_CBQ_FOPT]) < sizeof(*fopt))
| ^
networking/tc.c:273:16: error: ‘TCA_CBQ_OVL_STRATEGY’ undeclared (first use in this function)
273 | if (tb[TCA_CBQ_OVL_STRATEGY]) {
| ^~~~~~~~~~~~~~~~~~~~
networking/tc.c:274:67: error: invalid application of ‘sizeof’ to incomplete type ‘struct tc_cbq_ovl’
274 | if (RTA_PAYLOAD(tb[TCA_CBQ_OVL_STRATEGY]) < sizeof(*ovl))
| ^
networking/tc.c:277:50: error: invalid application of ‘sizeof’ to incomplete type ‘struct tc_cbq_ovl’
277 | (unsigned) sizeof(*ovl));
| ^
networking/tc.c:293:23: error: invalid use of undefined type ‘struct tc_cbq_lssopt’
293 | if (lss && lss->flags) {
| ^~
networking/tc.c:296:24: error: invalid use of undefined type ‘struct tc_cbq_lssopt’
296 | if (lss->flags&TCF_CBQ_LSS_BOUNDED) {
| ^~
networking/tc.c:296:32: error: ‘TCF_CBQ_LSS_BOUNDED’ undeclared (first use in this function)
296 | if (lss->flags&TCF_CBQ_LSS_BOUNDED) {
| ^~~~~~~~~~~~~~~~~~~
networking/tc.c:300:24: error: invalid use of undefined type ‘struct tc_cbq_lssopt’
300 | if (lss->flags&TCF_CBQ_LSS_ISOLATED) {
| ^~
networking/tc.c:300:32: error: ‘TCF_CBQ_LSS_ISOLATED’ undeclared (first use in this function)
300 | if (lss->flags&TCF_CBQ_LSS_ISOLATED) {
| ^~~~~~~~~~~~~~~~~~~~
networking/tc.c:308:24: error: invalid use of undefined type ‘struct tc_cbq_wrropt’
308 | if (wrr->priority != TC_CBQ_MAXPRIO)
| ^~
networking/tc.c:308:38: error: ‘TC_CBQ_MAXPRIO’ undeclared (first use in this function)
308 | if (wrr->priority != TC_CBQ_MAXPRIO)
| ^~~~~~~~~~~~~~
networking/tc.c:309:46: error: invalid use of undefined type ‘struct tc_cbq_wrropt’
309 | printf("prio %u", wrr->priority);
| ^~
networking/tc.c:313:43: error: invalid use of undefined type ‘struct tc_cbq_wrropt’
313 | printf("/%u ", wrr->cpriority);
| ^~
networking/tc.c:314:32: error: invalid use of undefined type ‘struct tc_cbq_wrropt’
314 | if (wrr->weight != 1) {
| ^~
networking/tc.c:315:65: error: invalid use of undefined type ‘struct tc_cbq_wrropt’
315 | print_rate(buf, sizeof(buf), wrr->weight);
| ^~
networking/tc.c:318:32: error: invalid use of undefined type ‘struct tc_cbq_wrropt’
318 | if (wrr->allot)
| ^~
networking/tc.c:319:57: error: invalid use of undefined type ‘struct tc_cbq_wrropt’
319 | printf("allot %ub ", wrr->allot);
| ^~
networking/tc.c:236:24: warning: unused variable ‘tb’ [-Wunused-variable]
236 | struct rtattr *tb[TCA_CBQ_MAX+1];
| ^~
make[1]: *** [scripts/Makefile.build:198：networking/tc.o] 错误 1
make: *** [Makefile:744：networking] 错误 2
本文详细介绍了Linux操作系统中参数定义的通用容量限制，包括系统级别的固定常量限制和可配置限制。解释了如何使用sysconf函数来查找特定机器上的实际限制值，确保应用程序在不同环境下稳定运行。
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