- 03 Jan, 2005 40 commits
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Jeff Dike authored
Fix sys_sigreturn and sys_rt_sigreturn to avoid calling copy_from_user inside a spinlock. We copy the blocked signal mask into a local sigset_t before the spinlock and then just assign from it inside the lock. Signed-off-by:
Jeff Dike <jdike@addtoit.com> Signed-off-by:
Andrew Morton <akpm@osdl.org> Signed-off-by:
Linus Torvalds <torvalds@osdl.org>
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Jeff Dike authored
This piece appears to have gone in twice. Signed-off-by:
Milton Miller <miltonm@bga.com> Signed-off-by:
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Jeff Dike authored
From: Chris Wedgewood: this removes unnecessary cruft from unistd.h Signed-off-by:
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Jeff Dike authored
From: Bodo Stroesser Signed-off-by:
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Jeff Dike authored
This patch rips out the old signal delivery mechanism and replaces it with a sane one. Specifically, UML used to capture a host signal frame and use it as a template for its own signal frames. This was a worthy idea, because it promised a degree of architecture-independence for this part of UML, but impractical. There are some environments, notably 32 bit emulation on a 64 bit box, where you can't use the host signal frame as a template for your own. Plus, this code is as complicated, even to someone who understands what it's doing, as the standard fill-in-a-structure-and-write-it-to-the-stack. For everyone else, it is incomprehensible. So, this reimplements signal handling in the way that everyone else does. It gives up on architecture independence, and moves this code into the x86-specific stuff. Signed-off-by:
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Paolo \'Blaisorblade\' Giarrusso authored
From: Jeff Dike <jdike@addtoit.com> This patch adds ptrace_setfpregs and makes these functions return -errno on failure. Signed-off-by:
Paolo 'Blaisorblade' Giarrusso <blaisorblade_spam@yahoo.it> Signed-off-by:
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Paolo \'Blaisorblade\' Giarrusso authored
Reworded the comment about __wrap_free detection of the allocator used to allocate the pointer (it can free a pointer created by either the host malloc(), kmalloc() or vmalloc()). Signed-off-by:
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Paolo \'Blaisorblade\' Giarrusso authored
Remove uses of devfs_mk_symlink(). We didn't do this before to avoid breaking most user setups, but this patch should be quite harmless. I've excluded the hottest part, i.e. the ubd symlink, while removing the other; I released a end-user tree with this patch and there was a good number of people using the symlink rather than the preferred name. That part will be merged later, I think. Since now we have evidence of less and less users using devfs, we think that it will not cause too much problems. Acked-by:
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Hirokazu Takata authored
This patch updates include/asm-m32r/mmu_context.h. * include/asm-m32r/mmu_context.h: - Add #ifdef __KERNEL__ - Change __inline__ to inline for __KERNEL__ portion. Signed-off-by:
Hirokazu Takata <takata@linux-m32r.org> Signed-off-by:
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Hirokazu Takata authored
This patch updates include/asm-m32r/system.h. * include/asm-m32r/system.h: - Use barrier() as mb(). - Change __inline__ to inline. Signed-off-by:
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Hirokazu Takata authored
This patch is for employing the generic hardirq framework for m32r. Now CONFIG_GENERIC_HARDIRQS is set to Y by default. - Update to use GENERIC_HARDIRQ framework. - Fix PREEMPT_ACTIVE definition (changeset 1.2000.16.20) Signed-off-by:
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Hirokazu Takata authored
Here is a patch to update kernel headers for mutual exclusion, atomic.h, bitops.h and semaphore.h of m32r. This patch is for making these headers publishable to userland. * include/asm-m32r/assembler.h (M32R_LOCK, M32R_UNLOCK): Define M32R_LOCK and M32R_UNLOCK macros. For SMP configuration, these macros are expanded to m32r's LOCK and UNLOCK instructions. While, for UP configuration, these are simply expanded to m32r's LD(load) and ST(store) instructions, respectively. * include/asm-m32r/atomic.h, include/asm-m32r/bitops.h, include/asm-m32r/semaphore.h: - Change macros from LOAD and STORE to M32R_LOCK and M32R_UNLOCK, respectively. It is because LOAD and STORE are too generic words. - Change inline to __inline__. Retrieve __inline__ modifiers for functions which are placed outside of __KERNEL__ region in these headers, because those functions might be included and used from ISO C program in userland. Currently, it seems that these headers are allowed to be included from userland. Indeed, they are kernel stuff, but these headers provide useful definitions and functions even for userland applications, I think. Signed-off-by:
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Hirokazu Takata authored
- Use kmalloc for m32r stacks (cf. changeset 1.1046.533.10) - Update for CONFIG_DEBUG_STACK_USAGE This modification was taken from include/asm-i386/thread_info.h. Signed-off-by:
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Hirokazu Takata authored
- Use THREAD_SIZE for __ASSEMBLY__ portion. - Update comments. - Fix a typo: user-thead --> user-thread. NOTE: Now there are two THREAD_SIZE definitions in the following patch, one is in C part and the other is in __ASSEMBLY__ part. I'm going to consolidate these THREAD_SIZE definitions. So, I have to change PAGE_SIZE definition of include/asm-m32r/page.h to be includable into asm portion... Signed-off-by:
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Hirokazu Takata authored
- Add #ifdef __KERNEL__ - Change __inline__ to inline for __KERNEL__ portion. - Remove RCS ID string. Signed-off-by:
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Hirokazu Takata authored
- Remove _PAGE_USER bit from pte. - The m32r doesn't support _PAGE_USER bit by hardware. Signed-off-by:
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Hirokazu Takata authored
- Support PAGE_NONE attribute for memory protection. - Add _PAGE_PROTNONE bit to pte (software bit). Signed-off-by:
NIIBE Yutaka <gniibe@fsij.org> Signed-off-by:
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Hirokazu Takata authored
- Change PAGE_*_X to PAGE_*_EXEC for good readability. - Add #include __KERNEL__ - Change __inline__ to inline for the __KERNEL__ portion. Signed-off-by:
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Hirokazu Takata authored
- Fix a typo: ACE_USEMODE --> ACE_USERMODE. - Update copyright statement, and so on. Signed-off-by:
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Hirokazu Takata authored
- To be more comprehensive, keep ACE_INSTRUCTION (access exception on instruction execution) information in thread_info->flags, instead of encoding it into address parameter. Signed-off-by:
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Hirokazu Takata authored
- Cause a segmentation fault for an illegal execution of a code on non-executable memory page. Signed-off-by:
Naoto Sugai <sugai@isl.melco.co.jp> Signed-off-by:
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Hirokazu Takata authored
This patch updates ptrace.c to support multithread debugging. So far, only one breakpoint's location was kept by kernel, however, in the multithreaded application's debug, it is required to kept multi-point breakpoint locations by kernel. In this implementation, maximum number of MAX_TRAPS(=10 (by default)) breakpoint's information will be kept in the "debug_trap" member of the thread_struct for each thread. * include/asm-m32r/processor.h: Modify debug_trap struct to keep multipoint breakpoint locations for multithread debugging. * arch/m32r/kernel/ptrace.c: - Update to support multithread debugging. - Remove unused functions, withdraw_debug_trap_for_signal() and embed_debug_trap_for_signal(). Signed-off-by:
Kei Sakamoto <ksakamot@linux-m32r.org> Signed-off-by:
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Hirokazu Takata authored
This patch updates include/asm-m32r/pgtable.h to add pgprot_noncached(). It is required to fix a problem of an userspace application, which mmaps io registers. This patch also modifies drivers/video/fbmem.c to support noncachable framebuffer access for m32r. In this routine, pgprot_writecombine() is used hopefully, even though the current m32r never does write-combining or write-coalescing... Please apply this. * include/asm-m32r/pgtable.h (pgprot_noncached, pgprot_writecombine): Newly added. * drivers/video/fbmem.c (fb_mmap): Add m32r support. Signed-off-by:
Mamoru Sakugawa <sakugawa@linux-m32r.org> Signed-off-by:
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Hirokazu Takata authored
include/asm-m32r/elf.h: Add relocations R_M32R_GOTOFF_HI_ULO, R_M32R_GOTOFF_HI_SLO, and R_M32R_GOTOFF_LO. These relocations are required to implement GOTOFF support for m32r. Signed-off-by:
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Andrew Morton authored
In file included from include/linux/ptrace.h:77, from arch/ppc64/lib/sstep.c:12: include/linux/sched.h: In function `freeze_processes': include/linux/sched.h:1189: warning: no return statement in function returning non-void Signed-off-by: -
Pavel Machek authored
This moves refrigerator changes to sched.h, so that every file user of refrigerator does not have to include suspend.h, and makes refrigerator support easier by introducing try_to_freeze. Adapted from patch by Nigel Cunningham Signed-off-by:
Pavel Machek <pavel@suse.cz> Signed-off-by:
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Pavel Machek authored
Some machines are spending minutes of CPU time during suspend in stupid O(n^2) algorithm. This patch replaces it with O(n) algorithm, making swsusp usable to some people. Signed-off-by:
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Pavel Machek authored
This adds statics at few places and fixes stale references to pmdisk. Signed-off-by:
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Pavel Machek authored
swsusp contains few one-line helpers that only make reading/understanding code more difficult. Also warn the user when something goes wrong, instead of waking machine with corrupt data. Signed-off-by:
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Pavel Machek authored
Variable used only for writing is bad idea. Signed-off-by:
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Pavel Machek authored
At few points we still reference to swsusp as "pmdisk"... it might confuse someone not knowing full history. Signed-off-by:
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Russell King authored
arch/arm/common/sa1111.c: In function `sa1111_suspend': arch/arm/common/sa1111.c:816: warning: assignment from incompatible pointer type This is a rather annoying, and IMHO pointless warning. First question: what is the reasoning for using an array of unsigned bytes here? Are we expecting to power manage devices which only have byte wide registers? In reality, devices have half-word and word sized registers as well, which means that dev->power.saved_state actually points to device specific data (or even device driver specific data) for the device. As such, it makes far more sense for this to be a 'void *'. I'd rather not go around the ARM kernel tree adding pointless casts to 'u8 *' and back again because the wrong type for this was picked in the structure definition, so here's a patch which changes this to void *. Signed-off-by:
Russell King <rmk@arm.linux.org.uk> Signed-off-by:
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Bjorn Helgaas authored
This is only used by the ia64 early_printk patch, which isn't in the mainline tree. If anybody is still using that patch, hcdp_early_uart() should be incorporated into it. Signed-off-by:
Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by:
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Ian Molton authored
Some long overdue updates to this file. newer macros taken from arm32. Signed-off-by:
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Ian Molton authored
Better put_user macro. Signed-off-by:
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Ian Molton authored
A keep-it-compiling patch based on the arm32 code. Signed-off-by:
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Ian Molton authored
ARM26 systems only have one possible clock, thus we can merge all this into one source file and drop the ability to dynamically alter it. Signed-off-by:
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Ian Molton authored
The arm26 version of this had become horribly out of date. this is a sideways-port of the arm32 version, dropping the unwanted stuff and adjusted for arm26 compatability. Signed-off-by:
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Ian Molton authored
New irq exit handler (part of the softirq changes) Signed-off-by:
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Ian Molton authored
Drop shark support from arm26 (shark isn't arm26 based) Signed-off-by:
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