Differences between version 26 and predecessor to the previous major change of KernelNotes.
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| Newer page: | version 26 | Last edited on Sunday, May 28, 2006 12:40:15 pm | by AristotlePagaltzis | Revert |
| Older page: | version 23 | Last edited on Saturday, May 27, 2006 10:34:20 pm | by AristotlePagaltzis | Revert |
@@ -1,62 +1,51 @@
-!!! Compile Problems
+!!! Compiler Version
-<pre>
-__In file included from ide-cd.c:318:__
-__ide-cd.h:440: error: long, short, signed or unsigned used invalidly for `slot_tablelen'__
-</pre>
-
-This occurs if you're using a more recent compiler than the kernel
can be compiled for, for example
[GCC] 3
.x to compile a kernel (
kernels only
work with <
[GCC] 3)
. If you want to use eg
. <tt>gcc-2.95</tt>, try:
-
-<verbatim>
-make CC=gcc-2.95 bzImage
-</verbatim>
-
-In <tt>/usr/src/linux/
README</tt> (at least for kernel versions 2.4.x and below) you will find the following snippet
:
+The [Kernel]
can be sensitive to the version of
[GCC] in use. F.ex. 2
.4 and early 2.6
kernels did not
work with [GCC] 3.x
. They contained the following snippet in
<tt>README</tt>:
<verbatim>
COMPILING the kernel:
- Make sure you have gcc 2.95.3 available. gcc 2.91.66 (egcs-1.1.2) may
also work but is not as safe, and *gcc 2.7.2.3 is no longer supported*.
</verbatim>
-But
of course you always read the compile instructions for software you download, right? :)
+OTOH kernels since about 2.6.15 require [GCC] 3.x. Read the file to find the versions
of compilers and other tools you need. Make sure to check the <tt>README</tt> and <tt>Documentation/Changes</tt> files to find out which version you need. Of
course you always read the compile instructions for software you download, right? :)
-!! Linking fails with bootsplash compiled into your
kernel
+To compile a
kernel with a specific compiler, you can say eg. <tt>make CC=gcc-2.95 bzImage</tt> to make the <tt>bzImage</tt> target using the <tt>gcc-2.95</tt> compiler.
-<verbatim>
- LD .tmp_vmlinux1
-drivers/built-in.o(.text+0xa898a): In function `splash_getraw':
-: undefined reference to `con2fb_map'
-drivers/built-in.o(.text+0xa918c): In function `splash_verbose':
-: undefined reference to `con2fb_map'
-drivers/built-in.o(.text+0xa9670): In function `splash_status':
-: undefined reference to `con2fb_map'
-drivers/built-in.o(.text+0xa97a4): In function `splash_read_proc':
-: undefined reference to `con2fb_map'
-drivers/built-in.o(.text+0xa997d): In function `splash_write_proc':
-: undefined reference to `con2fb_map'
-make: *** [.tmp_vmlinux1] Error 1
-</verbatim>
+!!! Linking fails with bootsplash compiled into your kernel
-You need to have framebuffer console support compiled in. It can't be a module!
+Compiling aborts with the following message:
-Set
<tt
>CONFIG
_FRAMEBUFFER
_CONSOLE=y<
/tt>
in the <tt>
.config
</tt
>.
+
<verbatim
>
+ LD .tmp
_vmlinux1
+ drivers/built-in.o(.text+0xa898a): In function `splash
_getraw':
+ : undefined reference to `con2fb_map'
+ drivers
/built-
in.o(.text+0xa918c): In function `splash_verbose':
+ : undefined reference to `con2fb_map'
+ drivers/built-in.o(.text+0xa9670): In function `splash_status':
+ : undefined reference to `con2fb_map'
+ drivers/built-in.o(.text+0xa97a4): In function `splash_read_proc':
+ : undefined reference to `con2fb_map'
+ drivers/built-in.o(.text+0xa997d): In function `splash_write_proc':
+ : undefined reference to `con2fb_map'
+ make: *** [.tmp_vmlinux1] Error 1
+
</verbatim
>
-!!! Version 2
.6 series LinuxKernel notes
+You need to have framebuffer console support compiled in. It can't be a module
! Set <tt>CONFIG_FRAMEBUFFER_CONSOLE=y</tt> in the <tt>.config</tt>
.
-!! ModuleInitTools
+!
!! ModuleInitTools
Starting with 2.5.51, modules have a different format. The extension has also changed from <tt>.o</tt> to <tt>.ko</tt>, for kernel object. To work with modules, you need a completely rewritten set of module tools (modprobe(8), insmod(8), lsmod(8)), collectively called <tt>module-init-tools</tt>. They can coexist with the 2.4.x-specific tools. __Note, however__ that <tt>module-init-tools</tt> no longer reads <tt>modules.conf</tt> and instead uses a new file called modprobe.conf(5) which has a different syntax. <tt>man 5 modprobe.conf</tt> will be your friend here. It's possible to set <tt>modprobe.conf</tt> to handle modules for both 2.4.x and 2.5.x kernels, which is pretty cool if you're a dual-booter.
-!! Nvidia
and 2.6 notes
+!!! nVidia
and LinuxKernel
2.6
-[NVIDIA
drivers|http://www.nvidia.com/linux] version 1.-6106 and up support all 2.4 and 2.6 kernels, including kernels with the new 2.6 option for 4k stacks.
+[nVidia
drivers|http://www.nvidia.com/linux] version 1.-6106 and up support all 2.4 and 2.6 kernels, including kernels with the new 2.6 option for 4k stacks.
-!! Other Misc 2.6 Notes
+!
!! Other Misc 2.6 Notes
-In the 2.4 series, you could read <tt>/usr/src/linux-''version''/
Documentation/Configure.help</tt> to see all the help for the entries you'd see in <tt>make ''foo''config</tt>. In 2.6, this has moved to individual <tt>Kconfig</tt> files in each sub-directory of the source tree.
+In the 2.4 series, you could read <tt>Documentation/Configure.help</tt> to see all the help for the entries you'd see in <tt>make ''foo''config</tt>. In 2.6, this has moved to individual <tt>Kconfig</tt> files in each sub-directory of the source tree.
!!! See also
* TroubleshootingStartUp has help for some problems while booting kernels
