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| 01:35.48 | `Bleu | <--absolute noob to embedded linux. Can some one point me to where i can get some small hardware to run linux? Not sure if it is possible or not, but i was thinking about building a mediatomb server on some small embedded device. |
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| 06:09.19 | methril | morning |
| 06:14.04 | cdm | hey |
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| 09:14.07 | shaz | hi guys |
| 09:15.03 | shaz | need some tips on cross compile and makefiles |
| 09:15.45 | shaz | Is CROSS_COMPILE a builtin variable of Makefile tools (or whatever) |
| 09:17.59 | mnemoc | yes |
| 09:18.03 | mnemoc | err |
| 09:18.06 | mnemoc | not built it |
| 09:18.09 | mnemoc | built-in |
| 09:18.14 | shaz | ya :) |
| 09:18.24 | mnemoc | yuck, /me needs coffee |
| 09:18.38 | mnemoc | it's a normal variable used by some Makefiles |
| 09:19.12 | shaz | I am porting some software and the makefile has no CROSS_COMPILE and I added it to the makefile so will it work |
| 09:19.55 | mnemoc | usually you don't need it |
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| 09:20.26 | mnemoc | if you have a toolchain built setting the right CC, CXX, ... is enough |
| 09:20.44 | shaz | So u mean I sould use CC=arm-linux- or CC=arm-linuc-gcc |
| 09:21.08 | mnemoc | the second |
| 09:21.15 | shaz | but I get wrong elf format error |
| 09:21.32 | mnemoc | LD? |
| 09:21.46 | mnemoc | STRIP, RANLIB, ... |
| 09:21.49 | shaz | yes that was the error |
| 09:21.55 | shaz | how do i set those |
| 09:22.00 | mnemoc | you have to set them all to use your toolchain :) |
| 09:22.18 | mnemoc | in the same way you did with CC |
| 09:22.23 | shaz | the tool chain is builtroot and complete and tested |
| 09:22.32 | mnemoc | usually passing it as argument to `make` |
| 09:22.53 | mnemoc | I have never used buildroot, so I can only give you "general" hints |
| 09:23.02 | shaz | like STRIP= and LD= and RANLIB= |
| 09:23.09 | mnemoc | yes |
| 09:23.21 | mnemoc | STRIP=arm-linux-strip, ... |
| 09:23.23 | shaz | that is fine. I am understanding what u mean |
| 09:23.32 | shaz | ok thats cool. |
| 09:24.15 | shaz | and I have mounted my rootfs so do i also set LIB=<PATH to LIB on rootfs> |
| 09:25.08 | shaz | mounted it on my build system |
| 09:27.06 | shaz | thanx |
| 09:27.41 | mnemoc | good luck :) |
| 09:29.40 | Blastur | hey, i have a question on network device drivers. Im trying to add scattergather support to a driver, but im a bit confused on the skbs. When no fragments are present (normal case), i simply send skb->data with length skb->len. However, what does skb->data contain for fragmented skbs? some drivers seems to iterate over the number of fragments and send each frag page, ignoring skb->data. Other drivers seems to use skb->data to e |
| 09:30.40 | Blastur | for example this: http://lxr.linux.no/linux/drivers/net/typhoon.c#L844 .. if nr_frags > 0, it sends skb->data up to skb_headlen() (ie, it only sends the header). But what will happen if some payload data also exists in skb->data, then it will not be sent? |
| 09:38.56 | Blastur | so in short, should i consider skb->data as "header" and all fragments as payload, or is that not a safe assumption? |
| 09:41.26 | mnemoc | Blastur: I think you should ask again once US people is awake ,-) |
| 09:43.33 | Blastur | aye :) |
| 09:43.36 | Blastur | good idea. |
| 09:43.45 | Blastur | when is that? in like .. 10 hours? |
| 09:45.14 | Blastur | by the way, do you know how to get the physical address of a page if i dont have a pci bus? seems like 99% of the net drivers map with pci_map_single(), but we dont have a PCI bus .. since its a SoC |
| 09:45.35 | Blastur | but i still need to pass an address to the DMA controller, or else it will be very sad :) |
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| 11:33.28 | hw__ | Is it possible to give 'make' additional defines to be added as C_FLAGS for gcc? |
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| 12:22.06 | Blastur | hey,, anyone know if skb->data and the skb fragments may overlap (assuming that skb is fragmented)? |
| 12:22.23 | Blastur | (skbuff) |
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| 15:20.20 | prpplague | TimRikerOLS: hey hey, Tim Bird will be giving away one of our Nail Boards there at OLS |
| 15:20.52 | TimRikerOLS | prpplague: cool. I'm headed to his offsite session. I never will anything though. :/ |
| 15:22.33 | wmat | that is cool |
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| 17:33.12 | prpplague | TimRiker: greetings |
| 17:33.18 | prpplague | TimRiker: hows OLS so far? |
| 17:33.58 | TimRiker | fun fun. not so rowdy parties (yet) but good talks. A lot more embedded focus than I remember. |
| 17:34.19 | prpplague | interesting |
| 17:34.54 | prpplague | TimRikerOLS: you'll have to let me know about the interest in the Nail board give away |
| 17:35.07 | TimRikerOLS | will do. 'specially if I win. :) |
| 17:36.58 | prpplague | hehe |
| 17:51.59 | wmat | Blastur: sorry, i don't have an answer to that question. There was some lkml traffic at one point about using an skb recycle buffer to improve network stack performance, but that's all I know on the subject. |
| 17:58.49 | TimRikerOLS | wmat: Tim and I added remote backup on the server. should run weekly now. |
| 17:59.09 | wmat | TimRikerOLS: awesome! |
| 17:59.50 | wmat | TimRikerOLS: for everything? |
| 18:13.51 | TimRikerOLS | wmat: yes. it dumps mysql, backs up the full os, and then rsyncs to mirror.c.o |
| 18:15.52 | wmat | great |
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