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author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-05-21 17:32:01 (GMT) |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-05-21 17:32:01 (GMT) |
commit | 9daeaa370526df1c19eba4780247bb7155541e38 (patch) | |
tree | 5ae2601c26e280e81d753c1fe65453a3b8b1d2a0 /Documentation | |
parent | cb62ab71fe2b16e8203a0f0a2ef4eda23d761338 (diff) | |
parent | 1edc17832d8f49a0263d364c453ea35da0e4e2a6 (diff) | |
download | linux-fsl-qoriq-9daeaa370526df1c19eba4780247bb7155541e38.tar.xz |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next
Pull sparc updates from David Miller:
1) Kill off support for sun4c and Cypress sun4m chips.
And as a result we were able to also kill off that ugly btfixup thing
that required multi-stage links of the final vmlinux image in the
Kbuild system. This should make the kbuild maintainers really happy.
Thanks a lot to Sam Ravnborg for his tireless efforts to get this
going.
2) Convert sparc64 to nobootmem. I suspect now with sparc32 being a lot
cleaner, it should be able to fall in line and modernize in this area
too.
3) Make sparc32 use generic clockevents, from Tkhai Kirill.
[ I fixed up the BPF rules, and tried to clean up the build rules too.
But I don't have - or want - a sparc cross-build environment, so the
BPF rule bug and the related build cleanup was all done with just a
bare "make -n" pseudo-test. - Linus ]
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next: (110 commits)
sparc32: use flushi when run-time patching in per_cpu_patch
sparc32: fix cpuid_patch run-time patching
sparc32: drop unused inline functions in srmmu.c
sparc32: drop unused functions in pgtsrmmu.h
sparc32,leon: move leon mmu functions to leon_mm.c
sparc32,leon: remove duplicate definitions in leon.h
sparc32,leon: remove duplicate UART register definitions
sparc32,leon: move leon ASI definitions to asi.h
sparc32: move trap table to a separate file
sparc64: renamed ttable.S to ttable_64.S
sparc32: Remove asm/sysen.h header.
sparc32: Delete asm/smpprim.h
sparc32: Remove unused empty_bad_page{,_table} declarations.
sparc32: Kill boot_cpu_id4
sparc32: Move GET_PROCESSOR*_ID() out of asm/asmmacro.h
sparc32: Remove completely unused code from asm/cache.h
sparc32: Add ucmpdi2.o to obj-y instead of lib-y.
sparc32: add ucmpdi2
sparc: introduce arch/sparc/Kbuild
sparc: remove obsolete documentation
...
Diffstat (limited to 'Documentation')
-rw-r--r-- | Documentation/sparc/README-2.5 | 46 |
1 files changed, 0 insertions, 46 deletions
diff --git a/Documentation/sparc/README-2.5 b/Documentation/sparc/README-2.5 deleted file mode 100644 index 806fe49..0000000 --- a/Documentation/sparc/README-2.5 +++ /dev/null @@ -1,46 +0,0 @@ -BTFIXUP -------- - -To build new kernels you have to issue "make image". The ready kernel -in ELF format is placed in arch/sparc/boot/image. Explanation is below. - -BTFIXUP is a unique feature of Linux/sparc among other architectures, -developed by Jakub Jelinek (I think... Obviously David S. Miller took -part, too). It allows to boot the same kernel at different -sub-architectures, such as sun4c, sun4m, sun4d, where SunOS uses -different kernels. This feature is convinient for people who you move -disks between boxes and for distrution builders. - -To function, BTFIXUP must link the kernel "in the draft" first, -analyze the result, write a special stub code based on that, and -build the final kernel with the stub (btfix.o). - -Kai Germaschewski improved the build system of the kernel in the 2.5 series -significantly. Unfortunately, the traditional way of running the draft -linking from architecture specific Makefile before the actual linking -by generic Makefile is nearly impossible to support properly in the -new build system. Therefore, the way we integrate BTFIXUP with the -build system was changed in 2.5.40. Now, generic Makefile performs -the draft linking and stores the result in file vmlinux. Architecture -specific post-processing invokes BTFIXUP machinery and final linking -in the same way as other architectures do bootstraps. - -Implications of that change are as follows. - -1. Hackers must type "make image" now, instead of just "make", in the same - way as s390 people do now. It is analogous to "make bzImage" on i386. - This does NOT affect sparc64, you continue to use "make" to build sparc64 - kernels. - -2. vmlinux is not the final kernel, so RPM builders have to adjust - their spec files (if they delivered vmlinux for debugging). - System.map generated for vmlinux is still valid. - -3. Scripts that produce a.out images have to be changed. First, if they - invoke make, they have to use "make image". Second, they have to pick up - the new kernel in arch/sparc/boot/image instead of vmlinux. - -4. Since we are compliant with Kai's build system now, make -j is permitted. - --- Pete Zaitcev -zaitcev@yahoo.com |