| 02:16.06 | *** join/#elinux CosmicPenguin (~jordanc@12-255-37-66.client.attbi.com) |
| 02:46.03 | *** join/#elinux CosmicPenguin (~jordanc@12-255-37-66.client.attbi.com) |
| 04:39.46 | *** join/#elinux ChanServ (ChanServ@services.) |
| 04:39.46 | *** mode/#eLinux [+o ChanServ] by benford.freenode.net |
| 04:39.46 | *** mode/#eLinux [-o kergoth`tv] by ChanServ |
| 04:39.57 | *** mode/#eLinux [+o kergoth] by ChanServ |
| 06:53.19 | *** join/#elinux ChanServ (ChanServ@services.) |
| 06:53.19 | *** mode/#eLinux [+o ChanServ] by benford.freenode.net |
| 06:53.19 | *** mode/#eLinux [-o kergoth`zzz] by ChanServ |
| 06:54.26 | *** join/#elinux dawn4lives (~dawn@adsl-64-168-31-148.dsl.snfc21.pacbell.net) |
| 06:54.49 | *** part/#elinux dawn4lives (~dawn@adsl-64-168-31-148.dsl.snfc21.pacbell.net) |
| 15:21.55 | *** join/#elinux NoyzSource (~ericp@h216-170-003-.adsl.navix.net) |
| 15:22.02 | NoyzSource | hello! |
| 15:22.54 | NoyzSource | I need to find a small implementation of scp. |
| 15:23.07 | NoyzSource | or comile a statically linked version. |
| 15:23.40 | NoyzSource | I'm not much a programmer so I've been trying to statically link OpenSSH but I'm not having any luck |
| 15:25.04 | NoyzSource | Therefore it might be better if I just found an binary or some instructions on how to do it. |
| 15:29.23 | Lethal | you want a static version of scp yet you want to statically link openssh? :P |
| 15:29.28 | Lethal | er, s/static/small/ |
| 15:29.50 | Lethal | if you statically drag in libc + openssl, you're pretty much fucked for small |
| 15:32.11 | Lethal | well, if its linked against uclibc, probably won't be too huge.. though I'd guess you'd still be around 500k - 1M or so |
| 15:32.27 | NoyzSource | I have a libc on the machine |
| 15:32.40 | NoyzSource | but you think the rest of it would prolly be about 1MB |
| 15:32.49 | NoyzSource | I think I have about 1.5MB to work with |
| 15:33.09 | NoyzSource | this can also get rid of ncftp put and ncftp get that are on the machine |
| 15:33.39 | Lethal | well, openssh/openssl are listed to work with uclibc.. that'd be your best bet for trimming it down. if you statically link scp you can always strip out the unused symbols and potentially save a bit that way as well. |
| 15:34.31 | NoyzSource | so far I've added -static to the CFLAGS portion of OpenSSH but the resulting binary is smaller after stripping than the binary that is on the RH machine I compile on |
| 15:34.46 | Lethal | is the RH machine binary stripped? |
| 15:35.00 | Lethal | just ldd the resultant binary and see if its still shared or not |
| 15:35.03 | NoyzSource | i guess I didn't try taht :) |
| 15:35.09 | NoyzSource | ldd, ok |
| 15:35.29 | Lethal | or run file on it as well and it'll tell you just as much, at least as far as static/shared goes ;P |
| 15:36.21 | NoyzSource | brb |
| 15:42.53 | Lethal | CFLAGS is also probably not what you want .. you probably want LDFLAGS instead, since that's whats used at actual link time. |
| 15:49.31 | andersee | NoyzSource: I have openssh compiling vs uClibc. Works fine. Precompiled uClibc development root_fs with ssh, gcc, gdb, etc is in the uclibc.org download area. |
| 15:51.22 | andersee | NoyzSource: I agree with Lethal, you are better off staticly linking ssh vs openssl (libcrypto). That'll help size a fair bit. |
| 16:25.57 | NoyzSource | LDFLAGS, i'll try that |
| 16:26.41 | NoyzSource | everything I've done so far is not statically linked no matter where I've put the -static flag. I'll put it in LDFLAGS this time. |
| 16:28.02 | NoyzSource | it looks like scp is calling ssh then just using rcp through the ssh tunnel |
| 16:28.20 | NoyzSource | we may have to switch to sftp instead |
| 16:31.25 | andersee | NoyzSource: When I want a particular lib to be staticly linked, I explicitly add that .a file to the link. |
| 16:32.37 | andersee | i.e. just put lib/libcrypto.a on the link line |
| 16:33.39 | andersee | -LIBS=-lutil -lz -lcrypto -lcrypt |
| 16:33.56 | andersee | +LIBS=-lutil -lz <path>/libcrypto.a -lcrypt |
| 16:39.14 | NoyzSource | I'll have to try that also. My ignorance in this arena is not exactly overcoming my confusion. :) |
| 16:39.54 | andersee | I just built ssh with openssl staticly linked by doing the above. Worked for me. |
| 16:39.57 | andersee | # ldd /usr/bin/ssh |
| 16:39.57 | andersee | <PROTECTED> |
| 16:39.57 | andersee | <PROTECTED> |
| 16:39.57 | andersee | <PROTECTED> |
| 16:39.57 | andersee | <PROTECTED> |
| 16:39.58 | andersee | <PROTECTED> |
| 16:40.09 | andersee | make CC=$(TARGET_CC1) LIBS="-lutil -lz $(STAGING_DIR)/lib/libcrypto.a -lcrypt" -C $(OPENSSH_DIR) |
| 16:40.32 | andersee | As simple as that after configuring it |
| 16:41.15 | NoyzSource | you make that look too simple. I'll try it. |
| 16:42.39 | NoyzSource | I don't have to put the -l in front of the <path>/libcrypto.a ? |
| 16:43.15 | NoyzSource | BTW this is a new job for me. I'm learning this stuff by just trying it. |
| 16:56.54 | NoyzSource | for some reason what you did didn't work for me |
| 16:58.04 | NoyzSource | so I just compiled normally then deleted scp and found the gcc command that compiled scp and through trial and error I moved -static around so that ldd ./scp said not a dynamic executable. |
| 16:58.43 | NoyzSource | i assume that if ldd says not a dynamic executable that the program is completely statically linked including libc? |
| 16:59.37 | Lethal | usually. you can run file on it too and it'll tell you explicitly if its static or shared. but not being dynamic is usually a dead give away ;P |
| 17:01.11 | NoyzSource | that's awesome |
| 17:01.18 | NoyzSource | hopefully it will actually run now |
| 17:02.21 | NoyzSource | except is still calling ssh first |
| 17:08.28 | NoyzSource | sftp does not seem to call external programs so I think we will probably use it. |
| 17:09.23 | NoyzSource | I take that back |
| 17:09.51 | NoyzSource | all of the secondary ssh programs call the ssh program itself |
| 17:10.01 | NoyzSource | even when statically linked |
| 17:11.04 | NoyzSource | so therefore I would need to put ssh (statically linked) and scp or sftp (statically linked) on the base station. |
| 17:16.36 | *** join/#elinux CosmicPenguin ([tzuq9wVcC@cosmic.censoft.com) |
| 17:21.33 | Lethal | or you could hack scp functionality into ssh and treat it as a multi-call binary to cut down on wasted lib space ;P |
| 17:23.47 | NoyzSource | I understand what you are saying but I think that might be over my head. |
| 17:32.11 | CosmicPenguin | Lethal: thats a good idea |
| 18:15.53 | *** join/#elinux ibot (ibot@rikers.org) |
| 18:15.53 | *** topic/#elinux is Embedded Linux || http://eLinux.org/ || cross compile, uClibc, busybox, tinylogin, handhelds, post-sale linux installs ;-), etc. |
| 18:15.56 | *** mode/#eLinux [+o ibot] by ChanServ |
| 20:58.23 | *** mode/#eLinux [+o kergoth] by ChanServ |