- 05 Feb, 2008 40 commits
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Jeff Dike authored
Tidy current-related stuff. There was a comment in current.h saying that current_thread was obsolete, so this patch turns all instances of current_thread into current_thread_info(). There's some simplifying of the result in arch/um/sys-i386/signal.c. current.h and thread_info also get style cleanups. Signed-off-by:
Jeff Dike <jdike@linux.intel.com> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Jeff Dike authored
Style fixes in elf-i386.h and arch/um/kernel/mem.c. update the copyright get rid of an emacs formatting comment some formatting fixes inclusion trimming whitespace fixes Signed-off-by: -
Jeff Dike authored
Untangle UML headers somewhat and add some includes where they were needed explicitly, but gotten accidentally via some other header. arch/um/include/um_uaccess.h loses asm/fixmap.h because it uses no fixmap stuff and gains elf.h, because it needs FIXADDR_USER_*, and archsetjmp.h, because it needs jmp_buf. pmd_alloc_one is uninlined because it needs mm_struct, and that's inconvenient to provide in asm-um/pgtable-3level.h. elf_core_copy_fpregs is also uninlined from elf-i386.h and elf-x86_64.h, which duplicated the code anyway, to arch/um/kernel/process.c, so that the reference to current_thread doesn't pull sched.h or anything related into asm/elf.h. arch/um/sys-i386/ldt.c, arch/um/kernel/tlb.c and arch/um/kernel/skas/uaccess.c got sched.h because they dereference task_structs. Its includes of linux and asm headers got turned from "" to <>. arch/um/sys-i386/bug.c gets asm/errno.h because it needs errno constants. asm/elf-i386 gets asm/user.h because it needs user_regs_struct. asm/fixmap.h gets page.h because it needs PAGE_SIZE and PAGE_MASK and system.h for BUG_ON. asm/pgtable doesn't need sched.h. asm/processor-generic.h defined mm_segment_t, but didn't use it. So, that definition is moved to uaccess.h, which defines a bunch of mm_segment_t-related stuff. thread_info.h uses mm_segment_t, and includes uaccess.h, which causes a recursion. So, the definition is placed above the include of thread_info. in uaccess.h. thread_info.h also gets page.h because it needs PAGE_SIZE. ObCheckpatchViolationJustification - I'm not adding a typedef; I'm moving mm_segment_t from one place to another. Signed-off-by:
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Jeff Dike authored
This patchset makes UML build and run with three-level page tables on 32-bit hosts. This is an uncommon use case, but the code here needed fixing and cleaning up, so 32-bit three-level pages tables were tested to make sure the changes are good. Patch 1 - code movement Patch 2 - header untangling Patch 3 - style fixups in files affected so far Patch 4 - clean up use of current.h Patch 5 - fix sizes of types that are different between 2 and 3-level page tables - three-level page table support should build at this point Patch 6 - tidy (i.e. eliminate much of) the code that figures out how big the address space is Patch 7 - change um_virt_to_phys into virt_to_pte, clean its interface, and clean its (so far) one caller Patch 8 - the stub pages are covered with a VMA, allowing some nasty code to be thrown out - three-level page tables now work This patch: um_virt_to_phys only has one user, so it can be moved to the same file and made static. Its declarations in pgtable.h and ksyms.c are also gone. current_cmd was another apparent user, but it itself isn't used, so it is deleted. Signed-off-by:
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Jeff Dike authored
Add some diagnostics when TLS operations on the host fail. Also spit out more information about the TLS environment on the host at boot time. Signed-off-by:
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Karol Swietlicki authored
This patch changes a few functions into returning void. The return values were not used anyway, so I think it should not be a problem. Also removed a little leftover bit from TT mode. Signed-off-by:
Karol Swietlicki <magotari@gmail.com> Signed-off-by:
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Karol Swietlicki authored
This patch removes a variable which was not used in two functions. Yet another code cleanup, nothing really significant. Please note that I could not test this on x86_64. I don't have the hardware for it. [ jdike - Bits of tidying around the affected code. Also, it's fine on x86_64 ] Signed-off-by:
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Lucas Woods authored
Signed-off-by:
Lucas Woods <woodzy@gmail.com> Cc: Jeff Dike <jdike@addtoit.com> Signed-off-by:
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Jeff Dike authored
The previous const-ing patch consted a string which shouldn't have been, and I didn't notice the gcc warning. ubd_setup can't take a const char * because its address is assigned to something which expects a char *arg. Many setups modify the string they are given, they can't be const. Signed-off-by:
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Jeff Dike authored
The earlier pgtable.h tidying patch made things a bit too tidy. Add back a header which is needed in VMALLOC_START and friend. Also add back a definition of pmd_page_vaddr, which is needed on x86_64. Signed-off-by:
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Jeff Dike authored
Large pieces of include/asm/pgtable.h were unused cruft. This uncovered arch/um/kernel/trap.c needing skas.h in order to get ptrace_faultinfo. Signed-off-by:
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Jeff Dike authored
Tidy kern_util.h. It turns out that most of the function declarations aren't used, so they can go away. os.h no longer includes kern_util.h, so files which got it through os.h now need to include it directly. A number of other files never needed it, so these includes are deleted. The structure which was used to pass signal handlers from the kernel side to the userspace side is gone. Instead, the handlers are declared here, and used directly from libc code. This allows arch/um/os-Linux/trap.c to be deleted, with its remnants being moved to arch/um/os-Linux/skas/trap.c. arch/um/os-Linux/tty.c had its inclusions changed, and it needed some style attention, so it got tidied. Signed-off-by:
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Jeff Dike authored
Allow LFLAGS to be given to make and have the expected effect. Signed-off-by:
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Jeff Dike authored
Robert Day noticed a few unused headers in UML, so this gets rid of them. Cc: "Robert P. J. Day" <rpjday@crashcourse.ca> Signed-off-by:
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Jeff Dike authored
Suggested by Geert Uytterhoeven - use const.h to get constants that are usable in both C and assembly. I can't include it directly since this code can't include kernel headers. const.h is also for numeric constants that can be typed by tacking a "UL" or similar on the end. The constants here have to be typed by casting them. So, the relevant parts of const.h are copied here and modified in order to allow the constants to be uncasted in assembly and casted in C. Signed-off-by:
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Jeff Dike authored
clone.c needed some style attention - updated copyright include trimming coding style Signed-off-by:
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Jeff Dike authored
Console driver cleanups - Changed an instance of foo = bar + foo to foo += bar Removed checks of tty->stopped - I don't think the low-level driver has any business looking at that Removed an annoying warning Signed-off-by:
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Karol Swietlicki authored
This is a short Kconfig fix for a problem in User Mode Linux. Frame pointers are required for gprof support to work. Signed-off-by:
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Jeff Dike authored
SMP still needs to depend on BROKEN for now. Signed-off-by:
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WANG Cong authored
This patch also does some improvements for uml code. Improvements include dropping unnecessary cast, killing some unnecessary code and still some constifying for pointers etc.. Signed-off-by:
WANG Cong <xiyou.wangcong@gmail.com> Signed-off-by:
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Jeff Dike authored
bugs.c, for both i386 and x86_64, can undergo further cleaning - The i386 arch_check_bugs only does one thing, so we might as well inline the cmov checking. The i386 includes can be trimmed down a bit. arch_init_thread wasn't used, so it is deleted. The panics in arch_handle_signal are turned into printks because the process is about to get segfaulted anyway, so something is dying no matter what happens here. Also, the return value was always the same, so it contained no information, so it can be void instead. The name is changed to arch_examine_signal because it doesn't handle anything. The caller of arch_handle_signal, relay_signal, does things in a different order. The kernel-mode signal check is now first, which puts everything else together, making things a bit clearer conceptually. [akpm@linux-foundation.org: coding-style fixes] Signed-off-by:
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Karol Swietlicki authored
This patch finishes what the previous one started. The code was not used after my first patch, and now can be removed with ease. [ jdike - also deleted the #if 0 lcall stuff ] Signed-off-by:
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Karol Swietlicki authored
This patch introduces a new way of checking for the cmov instruction. I use signal handling instead of reading /proc/cpuinfo. [ jdike - Fiddled the asm to make it obvious that it didn't mess with any in-use registers and made test_for_host_cmov void ] [akpm@linux-foundation.org: coding-style fixes] Signed-off-by:
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Karol Swietlicki authored
This patch updates links which broke during the transition to the new UML website. Signed-off-by:
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Jeff Dike authored
The ubd help message didn't document the 'c' flag. Signed-off-by:
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Jeff Dike authored
Get rid of asmlinkage and remove some old cruft from asm/linkage.h. [akpm@linux-foundation.org: coding-style fixes] Signed-off-by:
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Jeff Dike authored
Implement get_wchan - the algorithm is similar to x86. It starts with the stack pointer of the process in question and looks above that for addresses that are kernel text. The second one which isn't in the scheduler is the one that's returned. The first one is ignored because that will be UML's own context switching routine. Signed-off-by:
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WANG Cong authored
This patch contains varied fixes and improvements for some files under arch/um/os-Linux/, such as a typo fix in a perror message, a missing argument fix for a printf, some constifying for pointers and so on. [ jdike - made sigprocmask failure return -errno instead of -1 ] Signed-off-by:
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Karol Swietlicki authored
This patch removes some code which ran at every boot, but does not seem to do anything anymore. Please test. It works for me but mistakes can happen. Signed-off-by:
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Jeff Dike authored
init.h started breaking now for some reason. It turns out that there wasn't a definition of __used. Fixed this by copying the relevant stuff from compiler.h in the userspace case, and including compiler.h in the kernel case. [xiyou.wangcong@gmail.com: added definition of __section] Signed-off-by:
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Jesper Nilsson authored
This is very old code, it hasn't changed since 2001 and it is not used anywhere. Noticed by Clemens Koller. Signed-off-by:
Jesper Nilsson <jesper.nilsson@axis.com> Signed-off-by:
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Julia Lawall authored
An extra error handling label is needed for the case where the ioremap has succeeded. The problem was detected using the following semantic match (http://www.emn.fr/x-info/coccinelle/) // <smpl> @@ type T,T1,T2; identifier E; statement S; expression x1,x2; constant C; int ret; @@ T E; ... * E = ioremap(...); if (E == NULL) S ... when != iounmap(E) when != if (E != NULL) { ... iounmap(E); ...} when != x1 = (T1)E if (...) { ... when != iounmap(E) when != if (E != NULL) { ... iounmap(E); ...} when != x2 = (T2)E ( * return; | * return C; | * return ret; ) } // </smpl> Signed-off-by:
Julia Lawall <julia@diku.dk> Cc: Mikael Starvik <starvik@axis.com> Signed-off-by:
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Jesper Nilsson authored
Improve including of architecture dependent Kconfig files. - Always include the architecture dependent Kconfig files. - Wrap architecture dependent Kconfig files inside an appropriate "if ETRAX_ARCH_Vxx" block. This makes it possible to run the configuration even without the arch links, which are created later in the build process. Signed-off-by:
Sam Ravnborg <sam@ravnborg.org> Signed-off-by:
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Stanislav Brabec authored
It seems, that current kernel source code contains no traces of MAC_ADBKEYCODES and no reference to keyboard_sends_linux_keycodes any more. Remove them from configuration files. Signed-off-by:
Stanislav Brabec <sbrabec@suse.cz> Signed-off-by:
Geert Uytterhoeven <geert@linux-m68k.org> Cc: Roman Zippel <zippel@linux-m68k.org> Signed-off-by:
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Finn Thain authored
Add some new card definitions and fix a typo (from Eugen Paiuc). Signed-off-by:
Finn Thain <fthain@telegraphics.com.au> Signed-off-by:
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Finn Thain authored
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Finn Thain authored
Corrects a mistake I made in a comment. Signed-off-by:
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Adrian Bunk authored
EXPORT_SYMBOL's belong to the actual code. Signed-off-by:
Adrian Bunk <bunk@kernel.org> Signed-off-by:
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Adrian Bunk authored
EXPORT_SYMBOL's belong to the actual code. Signed-off-by:
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Adrian Bunk authored
EXPORT_SYMBOL's belong to the actual code. Signed-off-by:
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