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| 00:34.14 | roxfan | onoes, not another one http://www.tgdaily.com/mobility-features/58794-linux-based-meltemi-could-power-low-end-nokia-phones |
| 00:35.31 | SpeedEvil | ... |
| 00:35.42 | SpeedEvil | There is a translation error there though. |
| 00:35.49 | SpeedEvil | They meant thousand, but put billion |
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| 04:50.42 | dalias | landley, hey |
| 04:51.17 | dalias | is there any way you could get ld with support for -Bsymbolic-functions into aboriginal linux? |
| 04:51.22 | landley | dalias: hiya. How's stuff? |
| 04:51.36 | landley | dalias: which binutils version introduced that? |
| 04:51.42 | dalias | seems the included binutils, at least on arm, is too old to support it |
| 04:51.51 | landley | Which version introduced it? |
| 04:51.53 | dalias | i'm not sure exactly, i'll have to look into it |
| 04:52.01 | landley | I'm shipping the last gplv2 version. |
| 04:52.12 | landley | My LFS build scripts build newer versions, but don't install them yet. |
| 04:52.31 | landley | What is -Bsymbolic-functions? |
| 04:52.42 | dalias | i added dynamic linking support for arm, but the libc.so is not entirely correct because i had to use -Bsymbolic rather than -Bsymbolic-functions |
| 04:53.04 | dalias | -Bsymbolic-functions is just like -Bsymbolic but only does the binding for functions rather than all symbols (including variables) |
| 04:53.17 | landley | "correct"? |
| 04:53.20 | landley | What does the flag do? |
| 04:53.37 | landley | Binding? |
| 04:53.37 | dalias | -Bsymbolic binds all dynamic symbols in the library at .so creation time |
| 04:53.46 | dalias | so there's no longer a relocation |
| 04:53.52 | landley | Ah, ok. |
| 04:54.00 | landley | There's a -Bsymbolic already in 2.17? |
| 04:54.10 | dalias | in theory this is fine as long as you don't want to support symbol interposition |
| 04:54.17 | landley | I can probably trivially hack i the option as a patch. |
| 04:54.20 | dalias | however for variables it's a problem because of copy relocations |
| 04:54.33 | landley | Send me an email about it, I'm really distracted right now but should have some time tomorrow. |
| 04:54.44 | dalias | variables that might be used in the main program (like environ) always need to have a relocation |
| 04:55.08 | dalias | or the library and main program will refer to separate copies of the variable (the one in the lib, and the copy reloc in the main program) |
| 04:55.15 | dalias | so i use -Bsymbolic-functions |
| 04:55.16 | landley | Gotcha. I can copy the -Bsymbolic option and just have it apply only to certain symbol types. |
| 04:55.24 | dalias | *nod* |
| 04:55.35 | dalias | or i could find a way to do it with visibility instead... |
| 04:55.39 | landley | Please send me an email so I remember, I'm in the middle of several things at the moment. Brain full. |
| 04:55.52 | dalias | but there's no option for visibility to make all functions protected and all variables normal |
| 04:56.10 | dalias | so i'd have to keep/maintain a list of the right types |
| 04:56.12 | dalias | which sucks |
| 05:01.39 | landley | dalias: I can add the option, send me an email. |
| 05:01.52 | landley | The functionality's already there, you just need it to be more selective. that's easy to code. |
| 05:04.15 | dalias | *nod* ok i will |
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