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drphibes
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Joined: 30 Nov 2004
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 Posted: Mon Jun 20, 2005 12:03 am Post subject: gentoo-sources-2.6.12 really needs a linux-headers-2.6.12 |
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| linux-headers-2.6.11-r11 should be upgraded to linux-headers-2.6.12 sooner rather than later....there are incompatibilities between these kernels. |
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kmj0377
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Joined: 26 Sep 2003
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| Posted: Mon Jun 20, 2005 2:56 pm Post subject: |
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| I don't believe the linux headers in /usr/include have to match the version you are currently running. In fact, I'm curious as to why Gentoo is still using the headers straight from the linux kernel tarball instead of using the linux-libc-headers (http://ep09.pld-linux.org/~mmazur/linux-libc-headers/) since kernel developers are against using the linux kernel tarball for its headers. The linux headers should not be updated so quickly since they need to match the version glibc was compiled against. And then there's the /usr/src/linux symlink which kernel developers also seem to be against, but gentoo seems to require it for kernel module packages. |
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cbradney
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Joined: 08 May 2003
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Location: Luxembourg
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| Posted: Mon Jun 20, 2005 6:25 pm Post subject: |
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Seems this is correct tho. My friend running Slackware cant build 2.6.12, and its a header issue. Plus, compare the virtual FS area in config.. thats one place that we've noticed. Havent tried on Gentoo myself yet.
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dsd
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| Posted: Mon Jun 20, 2005 6:51 pm Post subject: Re: gentoo-sources-2.6.12 really needs a linux-headers-2.6.1 |
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| drphibes wrote: | | linux-headers-2.6.11-r11 should be upgraded to linux-headers-2.6.12 sooner rather than later....there are incompatibilities between these kernels. |
such as ..?
| kmj0377 wrote: | | The linux headers should not be updated so quickly since they need to match the version glibc was compiled against. |
they are updated regularly to fix bugs... often glibc does not need to be recompiled against the smaller changes
| Quote: | | And then there's the /usr/src/linux symlink which kernel developers also seem to be against, but gentoo seems to require it for kernel module packages. |
the reasons why people are against it do not apply to gentoo. (they only apply for people who build glibc against /usr/src/linux, but gentoo does not, we have linux-headers package)
| cbradney wrote: | | Seems this is correct tho. My friend running Slackware cant build 2.6.12, and its a header issue. |
unless slackware does strange stuff, headers (as in /usr/include headers) are not used in kernel compilation at all since the kernel binary does not rely on any libraries at all.
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cbradney
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| Posted: Mon Jun 20, 2005 7:02 pm Post subject: Re: gentoo-sources-2.6.12 really needs a linux-headers-2.6.1 |
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| dsd wrote: |
| cbradney wrote: | | Seems this is correct tho. My friend running Slackware cant build 2.6.12, and its a header issue. |
unless slackware does strange stuff, headers (as in /usr/include headers) are not used in kernel compilation at all since the kernel binary does not rely on any libraries at all. |
Yeah. That was my understanding. Maybe its a bad config dependency issue. He was trying to get i2c to work and was getting build failures re missing headers that were not in any of the kernel dirs, but only in the /usr/include dirs. Dont know if he sorted it out or not.
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drphibes
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| Posted: Mon Jun 20, 2005 10:37 pm Post subject: Re: gentoo-sources-2.6.12 really needs a linux-headers-2.6.1 |
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| dsd wrote: | | drphibes wrote: | | linux-headers-2.6.11-r11 should be upgraded to linux-headers-2.6.12 sooner rather than later....there are incompatibilities between these kernels. |
such as ..?
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pci.h
the struct pci_dev member 'slot_name' is now obsolete (gone!), but the 2.6.11 headers represent it as being available.
(struct pci_dev)pdev->slot_name references are now properly done as pci_name(pdev). |
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dsd
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| Posted: Mon Jun 20, 2005 10:56 pm Post subject: |
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that is an internal kernel change does not relate to headers at all. its not exposed as a system call to external libraries or anything like that.
remember, the kernel does not build against the headers in /usr/include ...
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drphibes
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| Posted: Mon Jun 20, 2005 11:03 pm Post subject: |
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| I see. Why, then, does not linux-headers only expose system call resources, as opposed to all the kernel headers? |
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dsd
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| Posted: Tue Jun 21, 2005 5:17 pm Post subject: |
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probably because it would then be a great amount of work in order to stay in-sync with the mainline kernel
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