| Summary: | mod_so can not be actived in AIX 5.1 | ||
|---|---|---|---|
| Product: | Apache httpd-2 | Reporter: | Tony Fan <tfan> |
| Component: | mod_so | Assignee: | Apache HTTPD Bugs Mailing List <bugs> |
| Status: | CLOSED FIXED | ||
| Severity: | critical | CC: | sdupre |
| Priority: | P3 | ||
| Version: | 2.0.45 | ||
| Target Milestone: | --- | ||
| Hardware: | Other | ||
| OS: | other | ||
Try --enable-so or --enable-modules=so (Have I mentioned how annoying it is that you can --enable-whatever-you-want without getting an error message; yes, I think I have.) Also, drop the --enable-rule=SHARED_CORE argument. That too is Apache-1.3-style configure argument which means nothing to Apache 2.0. (But I suspect you have mod_so anyway... mod_so defaults to on for most systems (including AIX 5.1)... Try ./httpd -l and see if mod_so.c is in the output.) Also, there is a bug in the message generation. As you noticed, nothing is printed in the expected position to say yes or no or shared. Thank you for the information. I recomplired Aapche, I check httpd -l to make sure I had mod_so, but after I used JRun 4 connector to configure with Apache. here is the error I am getting. # ./apachectl start Syntax error on line 1037 of /usr/local/apache2/conf/httpd.conf: Cannot load /home/tfan/jrun4/lib/wsconfig/1/mod_jrun20.so into server: here is line 1037 from httpd.conf: LoadModule jrun_module /home/tfan/jrun4/lib/wsconfig/1/mod_jrun20.so this error most likely is mod_so doesn't work. any ideal? Ehm no, the error probably says, that mod_jrun doesn't work with that httpd version. Syntax error on line 1037 of /usr/local/apache2/conf/httpd.conf: Cannot load /home/tfan/jrun4/lib/wsconfig/1/mod_jrun20.so into server: <here is the interesting part> what is the interesting message? Unfortunately, some Apache modules don't build properly on AIX and an inability to load them is a frequent symptom. See my fun at trying to get some Tomcat connectors to build properly on AIX: http://www.apache.org/~trawick/tomcataix.html Send me privately the output of "dump -Tv mod_jrun20.so" and "dump -Hv mod_jrun20.so" and I'll maybe have a guess as to why they won't load. Here is result for dump -Tv mod_jrun20.so:
# dump -Tv /home/tfan/jrun4/lib/wsconfig/1/mod_jrun20.so
/home/tfan/jrun4/lib/wsconfig/1/mod_jrun20.so:
***Loader Section***
***Loader Symbol Table Information***
[Index] Value Scn IMEX Sclass Type IMPid Name
[0] 0x00000000 undef IMP DS EXTref . ap_add_cgi_va
rs
[1] 0x00000000 undef IMP DS EXTref . ap_add_common
_vars
[2] 0x00000000 undef IMP DS EXTref . ap_destroy_su
b_req
[3] 0x00000000 undef IMP DS EXTref . ap_get_client
_block
[4] 0x00000000 undef IMP DS EXTref . ap_log_error
[5] 0x00000000 undef IMP DS EXTref . ap_os_escape_
path
[6] 0x00000000 undef IMP DS EXTref . ap_rflush
[7] 0x00000000 undef IMP DS EXTref . ap_rwrite
[8] 0x00000000 undef IMP DS EXTref . ap_set_conten
t_length
[9] 0x00000000 undef IMP DS EXTref . ap_setup_clie
nt_block
[10] 0x00000000 undef IMP DS EXTref . ap_should_cli
ent_block
[11] 0x00000000 undef IMP DS EXTref . ap_sub_req_lo
okup_uri
[12] 0x00000000 undef IMP UA EXTref libc.a(shr.o) errno
[13] 0x00000000 undef IMP DS EXTref libc.a(shr.o) close
[14] 0x00000000 undef IMP DS EXTref libc.a(shr.o) socket
[15] 0x00000000 undef IMP DS EXTref libc.a(shr.o) send
[16] 0x00000000 undef IMP DS EXTref libc.a(shr.o) recv
[17] 0x00000000 undef IMP DS EXTref libc.a(shr.o) setsockopt
[18] 0x00000000 undef IMP UA EXTref libc.a(shr.o) _system_confi
guration
[19] 0x00000000 undef IMP DS EXTref libc.a(shr.o) free
[20] 0x00000000 undef IMP DS EXTref libc.a(shr.o) malloc
[21] 0x00000000 undef IMP DS EXTref libc.a(shr.o) strlen
[22] 0x00000000 undef IMP DS EXTref libc.a(shr.o) fopen
[23] 0x00000000 undef IMP DS EXTref libc.a(shr.o) strncasecmp
[24] 0x00000000 undef IMP DS EXTref libc.a(shr.o) atoi
[25] 0x00000000 undef IMP DS EXTref libc.a(shr.o) strchr
[26] 0x00000000 undef IMP DS EXTref libc.a(shr.o) strtok
[27] 0x00000000 undef IMP DS EXTref libc.a(shr.o) fclose
[28] 0x00000000 undef IMP DS EXTref libc.a(shr.o) memset
[29] 0x00000000 undef IMP DS EXTref libc.a(shr.o) vsprintf
[30] 0x00000000 undef IMP DS EXTref libc.a(shr.o) sprintf
[31] 0x00000000 undef IMP DS EXTref libc.a(shr.o) fwrite
[32] 0x00000000 undef IMP DS EXTref libc.a(shr.o) strncmp
[33] 0x00000000 undef IMP DS EXTref libc.a(shr.o) tolower
[34] 0x00000000 undef IMP DS EXTref libc.a(shr.o) fread
[35] 0x00000000 undef IMP DS EXTref libc.a(shr.o) strdup
[36] 0x00000000 undef IMP DS EXTref libc.a(shr.o) ftell
[37] 0x00000000 undef IMP DS EXTref libc.a(shr.o) fseek
[38] 0x00000000 undef IMP DS EXTref libc.a(shr.o) time
[39] 0x00000000 undef IMP DS EXTref libc.a(shr.o) gettimeofday
[40] 0x00000000 undef IMP DS EXTref libc.a(shr.o) strstr
[41] 0x00000000 undef IMP DS EXTref libc.a(shr.o) srand
[42] 0x00000000 undef IMP DS EXTref libc.a(shr.o) rand
[43] 0x00000000 undef IMP DS EXTref libc.a(shr.o) strerror
[44] 0x00000000 undef IMP DS EXTref libc.a(shr.o) connect
[45] 0x00000000 undef IMP DS EXTref libc.a(shr.o) inet_addr
[46] 0x00000000 undef IMP DS EXTref libc.a(shr.o) strcasecmp
[47] 0x20000580 .data EXP RW SECdef [noIMid] jrun_module
[48] 0x200005b8 .data EXP RW SECdef [noIMid] jrMetrics
[49] 0x200005c0 .data EXP RW SECdef [noIMid] VARIABLE_NAME
S
[50] 0x2000089c .data EXP DS SECdef [noIMid] loadServersFr
omStore
[51] 0x200008a8 .data EXP DS SECdef [noIMid] mappingsTable
New
[52] 0x200008b4 .data EXP DS SECdef [noIMid] mappingsTable
Delete
[53] 0x200008c0 .data EXP DS SECdef [noIMid] init_jrun_req
uest
[54] 0x200008cc .data EXP DS SECdef [noIMid] retrieveServe
rsFromServer
[55] 0x200008d8 .data EXP DS SECdef [noIMid] persistServer
s
[56] 0x200008e4 .data EXP DS SECdef [noIMid] longerThan
[57] 0x200008f0 .data EXP DS SECdef [noIMid] removePathPar
ms
[58] 0x200008fc .data EXP DS SECdef [noIMid] jrunProxyNew
[59] 0x20000908 .data EXP DS SECdef [noIMid] startSync
[60] 0x20000914 .data EXP DS SECdef [noIMid] gtod
[61] 0x20000920 .data EXP DS SECdef [noIMid] tvToMillis
[62] 0x2000092c .data EXP DS SECdef [noIMid] stopSync
[63] 0x20000938 .data EXP DS SECdef [noIMid] initSync
[64] 0x20000944 .data EXP DS SECdef [noIMid] getPropertyVa
lue
[65] 0x20000950 .data EXP DS SECdef [noIMid] freePropertie
s
[66] 0x2000095c .data EXP DS SECdef [noIMid] describeError
[67] 0x20000968 .data EXP DS SECdef [noIMid] parseProperti
es
[68] 0x20000974 .data EXP DS SECdef [noIMid] getSession
[69] 0x20000980 .data EXP DS SECdef [noIMid] addProperty
[70] 0x2000098c .data EXP DS SECdef [noIMid] removePropert
yByIndex
[71] 0x20000998 .data EXP DS SECdef [noIMid] removePropert
y
[72] 0x200009a4 .data EXP DS SECdef [noIMid] setProperty
[73] 0x200009b0 .data EXP DS SECdef [noIMid] getPropertyVa
lue3
[74] 0x200009bc .data EXP DS SECdef [noIMid] getPropertyVa
lue2
[75] 0x200009c8 .data EXP DS SECdef [noIMid] freePropertie
s1
[76] 0x200009d4 .data EXP DS SECdef [noIMid] parseProperti
es1
[77] 0x200009e0 .data EXP DS SECdef [noIMid] loadPropertie
s1
[78] 0x200009ec .data EXP DS SECdef [noIMid] loadPropertie
s
[79] 0x200009f8 .data EXP DS SECdef [noIMid] getServerId
[80] 0x20000a04 .data EXP DS SECdef [noIMid] getNextBuddy
[81] 0x20000a10 .data EXP DS SECdef [noIMid] freeSync
[82] 0x20000c78 .bss EXP RW BSS [noIMid] jrun_rootdir
[83] 0x00000000 undef IMP DS EXTref .. apr_palloc
[84] 0x00000000 undef IMP DS EXTref .. apr_table_add
[85] 0x00000000 undef IMP DS EXTref .. apr_table_set
[86] 0x00000000 undef IMP DS EXTref .. apr_pstrdup
[87] 0x00000000 undef IMP DS EXTref .. apr_table_get
[88] 0x00000000 undef IMP DS EXTref .. apr_pstrcat
[89] 0x00000000 undef IMP DS EXTref .. ap_hook_post_
config
[90] 0x00000000 undef IMP DS EXTref .. ap_hook_child
_init
[91] 0x00000000 undef IMP DS EXTref .. ap_hook_type_
checker
[92] 0x00000000 undef IMP DS EXTref .. ap_hook_handl
er
[93] 0x00000000 undef IMP DS EXTref .. ap_run_http_m
ethod
[94] 0x00000000 undef IMP DS EXTref .. apr_table_elt
s
[95] 0x00000000 undef IMP DS EXTref .. apr_table_set
n
[96] 0x00000000 undef IMP DS EXTref .. apr_pool_clea
nup_register
--------------------------------------------------------------------------------
Here is a result for dump -Hv /home/tfan/jrun4/lib/wsconfig/1/mod_jrun20.so:
# dump -Hv /home/tfan/jrun4/lib/wsconfig/1/mod_jrun20.so
/home/tfan/jrun4/lib/wsconfig/1/mod_jrun20.so:
***Loader Section***
Loader Header Information
VERSION# #SYMtableENT #RELOCent LENidSTR
0x00000001 0x00000061 0x00000149 0x00000038
#IMPfilID OFFidSTR LENstrTBL OFFstrTBL
0x00000004 0x000018a4 0x00000470 0x000018dc
***Import File Strings***
INDEX PATH BASE MEMBER
0 /usr/lib/threads:/usr/lib:/lib
1 libc.a shr.o
2 .
3 ..
dang it, I think it is a build problem related to the display issue you noted back at square one... your DSO looks great try this: $ cd /path/to/httpd-2.0.45 $ grep HTTPD_LDFLAGS build/config_vars.mk I bet the output is simply HTTPD_LDFLAGS = when it should be something similar to HTTPD_LDFLAGS = -Wl,-uXML_Parse -Wl,-bE:/path/to/server/httpd.exp The lack of the weird "-Wl,-bE:" option means that httpd doesn't export the Apache API to DSOs, subsequently leading to DSOs failing to load. Depending on how mod_so gets enabled, the variable $enable_so may or may not get set, and if it isn't set then the right LDFLAGS for linking httpd don't get initialized. If you verify that HTTPD_LDFLAGS is an empty string, here is a work-around that worked for me: Add "--enable-so" to your Apache configure invocation, as in make distclean && ./configure --enable-so --other-opts && make && make install By explicitly turning on mod_so (using the Apache 2 option this time :) ), we avoid the bug. This has been fixed in 2.1-dev, and if nobody complains about the fix in the next few days I'll propose it for merging into 2.0.46-dev. Until then, specify --enable-so. I recompiled as your suggection. after that I check: 1. config.log (I can see mod_so turned on YES) 2. HTTPD_LDFLAGS = -Wl,-uXML_Parse -Wl,-bE:/path/to/server/httpd.exp 3. httpd -l showed mod_so but when I start up Aapche still got same error. # ./apachectl start Syntax error on line 1037 of /usr/local/apache2/conf/httpd.conf: Cannot load /home/tfan/jrun4/lib/wsconfig/1/mod_jrun20.so into server: plz send me off-line (trawick@apache.org) the output of dump -Tv /path/to/new/httpd (the one picked up by your still-failing ./apachectl start) ISTR hearing off-line that the Apache build was corrected with the --enable-so work-around, and that further work was going to be done with the 3rd-party module build to see why it wasn't loading. Re-open the PR if there is still a problem with httpd not exporting symbols. |
Hi, I tried to build Apache 2.0.45 in my AIX 5.1 system. here is what I start to build: ./configure --enable-ssl=shared \ --with-ssl=/usr/local/ssl \ --enable-rule=SHARED_CORE \ --enable-module=so everything is working fine then I do make no error make install no error but when I relized mod_so doesn't work I went beck to check the config.log file. it is showed: .......... configure:14313: checking whether to enable mod_userdir configure:14351: result: yes (default) configure:14399: checking whether to enable mod_alias configure:14437: result: yes (default) configure:14486: checking whether to enable mod_rewrite configure:14524: result: no configure:14618: checking whether to enable mod_so configure:14656: result: configure:15020: checking whether byte ordering is bigendian .......... somehow mod_so module can not be turned on --Tony