Compile Nagios Core 4.2.4 on AIX 7.1 using gcc
Posted: Fri Feb 03, 2017 5:28 am
Hi folks,
I just want share my findings that I made when trying to run and/or compile Nagios Core 4.2.4 on AIX 7.1 using gcc.
I started with using the Nagios RPM package from http://www.perzl.org/aix/index.php?n=Main.HomePage (a well known site for AIX open source packages)
Installation was ok, but when running the nagios binary from that package some errors showed up. So I had to compile my own package.
The Nagios SRPM file from http://www.perzl.org/ already contains some patches against Nagios 4.2.4 but I had to do further changes.
1.)
AIX out of the box cannot handle long arguments (e.g. --verbose or --help) so standard getopt has to be used.
The Nagios SRPM file from http://www.perzl.org/ already has this patch:
I had to do an additional patch. The getopt string in base/nagios.c needs to be "+hVvdspuxTW:" instead of "+hVvdspuxTW" because the "-W" option has an argument.
2.)
wait4() seems to misbehave on AIX 7.1 when called with WNOHANG. wait4() with WNOHANG aways returns 0. So the worker threads didn't know that the monitor scripts/commands had terminated.
As a workaround I had to call check_completion() like this: check_completion(cp, 0)
3.)
A patch for timeval. Don't know if this is really needed. gcc just gave a warning.
4.)
Some patches by Mr. Perzl from the Nagios SRPM file from http://www.perzl.org/
That's it for now. I hope this information is useful.
Regards,
Stefan
I just want share my findings that I made when trying to run and/or compile Nagios Core 4.2.4 on AIX 7.1 using gcc.
I started with using the Nagios RPM package from http://www.perzl.org/aix/index.php?n=Main.HomePage (a well known site for AIX open source packages)
Installation was ok, but when running the nagios binary from that package some errors showed up. So I had to compile my own package.
The Nagios SRPM file from http://www.perzl.org/ already contains some patches against Nagios 4.2.4 but I had to do further changes.
1.)
AIX out of the box cannot handle long arguments (e.g. --verbose or --help) so standard getopt has to be used.
The Nagios SRPM file from http://www.perzl.org/ already has this patch:
Code: Select all
*** ./base/workers.c.ORIG Thu Mar 26 23:07:07 2015
--- ./base/workers.c Thu Mar 26 23:07:15 2015
***************
*** 924,930 ****
static int spawn_core_worker(void)
{
! char *argvec[] = {nagios_binary_path, "--worker", qh_socket_path ? qh_socket_path : DEFAULT_QUERY_SOCKET, NULL};
int ret;
if ((ret = spawn_helper(argvec)) < 0)
--- 924,930 ----
static int spawn_core_worker(void)
{
! char *argvec[] = {nagios_binary_path, "-W", qh_socket_path ? qh_socket_path : DEFAULT_QUERY_SOCKET, NULL};
int ret;
if ((ret = spawn_helper(argvec)) < 0)
Code: Select all
*** ./base/nagios.c.orig Mon Jan 23 09:22:33 2017
--- ./base/nagios.c Mon Jan 23 09:35:57 2017
***************
*** 258,264 ****
/* get all command line arguments */
while(1) {
! c = getopt(argc, argv, "+hVvdspuxTW");
if(c == -1 || c == EOF)
break;
--- 258,264 ----
/* get all command line arguments */
while(1) {
! c = getopt(argc, argv, "+hVvdspuxTW:");
if(c == -1 || c == EOF)
break;
wait4() seems to misbehave on AIX 7.1 when called with WNOHANG. wait4() with WNOHANG aways returns 0. So the worker threads didn't know that the monitor scripts/commands had terminated.
As a workaround I had to call check_completion() like this: check_completion(cp, 0)
Code: Select all
*** ./lib/worker.c.ori Mon Jan 23 13:26:17 2017
--- ./lib/worker.c Wed Jan 25 12:12:20 2017
***************
*** 382,388 ****
* first attempt at reaping, so see if we just failed to
* notice that things were going wrong her
*/
! if (reason == ETIME && !check_completion(cp, WNOHANG)) {
timeouts++;
wlog("job %d with pid %d reaped at timeout. timeouts=%u; started=%u", cp->id, pid, timeouts, started);
return;
--- 382,388 ----
* first attempt at reaping, so see if we just failed to
* notice that things were going wrong her
*/
! if (reason == ETIME && !check_completion(cp, 0)) {
timeouts++;
wlog("job %d with pid %d reaped at timeout. timeouts=%u; started=%u", cp->id, pid, timeouts, started);
return;
***************
*** 489,495 ****
iobroker_close(iobs, io->fd);
io->fd = -1;
if (!final)
! check_completion(cp, WNOHANG);
break;
}
--- 489,495 ----
iobroker_close(iobs, io->fd);
io->fd = -1;
if (!final)
! check_completion(cp, 0);
break;
}
3.)
A patch for timeval. Don't know if this is really needed. gcc just gave a warning.
Code: Select all
*** ./lib/worker.c.orig Mon Jan 23 13:20:05 2017
--- ./lib/worker.c Mon Jan 23 13:15:46 2017
***************
*** 209,215 ****
#define kvvec_add_tv(kvv, key, value) \
do { \
! const char *buf = mkstr("%ld.%06ld", value.tv_sec, value.tv_usec); \
kvvec_addkv_wlen(kvv, key, sizeof(key) - 1, buf, strlen(buf)); \
} while (0)
--- 209,215 ----
#define kvvec_add_tv(kvv, key, value) \
do { \
! const char *buf = mkstr("%ld.%06ld", (long)value.tv_sec, (long)value.tv_usec); \
kvvec_addkv_wlen(kvv, key, sizeof(key) - 1, buf, strlen(buf)); \
} while (0)
Some patches by Mr. Perzl from the Nagios SRPM file from http://www.perzl.org/
Code: Select all
*** ./include/config.h.in.ORIG Thu Feb 13 20:31:02 2014
--- ./include/config.h.in Thu Feb 13 20:31:21 2014
***************
*** 268,276 ****
--- 268,278 ----
#include <netdb.h>
#endif
+ #ifndef _AIX51
#undef HAVE_LIBGEN_H
#ifdef HAVE_LIBGEN_H
#include <libgen.h>
+ #endif
#endif
#undef HAVE_SYS_UN_H
*** ./configure.ORIG Thu Feb 13 20:33:51 2014
--- ./configure Thu Feb 13 20:34:27 2014
***************
*** 7396,7402 ****
{ echo "$as_me:$LINENO: checking for extra flags needed to export symbols" >&5
echo $ECHO_N "checking for extra flags needed to export symbols... $ECHO_C" >&6; }
case $host_os in
! aix4*|aix5*)
BROKER_LDFLAGS="$BROKER_LDFLAGS -Wl,-bexpall,-brtl"
;;
bsdi*)
--- 7396,7402 ----
{ echo "$as_me:$LINENO: checking for extra flags needed to export symbols" >&5
echo $ECHO_N "checking for extra flags needed to export symbols... $ECHO_C" >&6; }
case $host_os in
! aix[4-9]*)
BROKER_LDFLAGS="$BROKER_LDFLAGS -Wl,-bexpall,-brtl"
;;
bsdi*)
*** ./base/Makefile.in.ORIG Thu Feb 13 21:12:00 2014
--- ./base/Makefile.in Thu Feb 13 21:12:26 2014
***************
*** 11,17 ****
SRC_LIB=../lib
CC=@CC@
! CFLAGS=-Wall -I.. @CFLAGS@ @DEFS@ -DNSCORE
# Compiler flags for use with gprof
#CFLAGS=-pg -DHAVE_CONFIG_H -DNSCORE
--- 11,17 ----
SRC_LIB=../lib
CC=@CC@
! CFLAGS=-I.. @CFLAGS@ @DEFS@ -DNSCORE
# Compiler flags for use with gprof
#CFLAGS=-pg -DHAVE_CONFIG_H -DNSCORE
Regards,
Stefan
