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kernel-fxtec-pro1x/arch/x86/include/asm
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Christoph Hellwig dacbe41f77 ptrace: move user_enable_single_step & co prototypes to linux/ptrace.h 
While in theory user_enable_single_step/user_disable_single_step/
user_enable_blockstep could also be provided as an inline or macro there's
no good reason to do so, and having the prototype in one places keeps code
size and confusion down.

Roland said:

  The original thought there was that user_enable_single_step() et al
  might well be only an instruction or three on a sane machine (as if we
  have any of those!), and since there is only one call site inlining
  would be beneficial.  But I agree that there is no strong reason to care
  about inlining it.

  As to the arch changes, there is only one thought I'd add to the
  record.  It was always my thinking that for an arch where
  PTRACE_SINGLESTEP does text-modifying breakpoint insertion,
  user_enable_single_step() should not be provided.  That is,
  arch_has_single_step()=>true means that there is an arch facility with
  "pure" semantics that does not have any unexpected side effects.
  Inserting a breakpoint might do very unexpected strange things in
  multi-threaded situations.  Aside from that, it is a peculiar side
  effect that user_{enable,disable}_single_step() should cause COW
  de-sharing of text pages and so forth.  For PTRACE_SINGLESTEP, all these
  peculiarities are the status quo ante for that arch, so having
  arch_ptrace() itself do those is one thing.  But for building other
  things in the future, it is nicer to have a uniform "pure" semantics
  that arch-independent code can expect.

  OTOH, all such arch issues are really up to the arch maintainer.  As
  of today, there is nothing but ptrace using user_enable_single_step() et
  al so it's a distinction without a practical difference.  If/when there
  are other facilities that use user_enable_single_step() and might care,
  the affected arch's can revisit the question when someone cares about
  the quality of the arch support for said new facility.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Roland McGrath <roland@redhat.com>
Acked-by: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-03-12 15:52:38 -08:00
..
uv Merge branch 'x86-uv-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2010-02-28 11:00:55 -08:00
visws x86: Move pci init function to x86_init 2010-02-19 16:12:29 -08:00
xen xen: move Xen-testing predicates to common header 2009-11-04 08:47:24 -08:00
a.out-core.h hw-breakpoints: Fix broken a.out format dump 2009-11-10 11:23:05 +01:00
a.out.h
acpi.h ACPI: processor: finish unifying arch_acpi_processor_init_pdc() 2009-12-22 03:24:13 -05:00
aes.h
agp.h agp: kill phys_to_gart() and gart_to_phys() 2009-08-03 09:05:00 +01:00
alternative-asm.h x86/alternatives: No need for alternatives-asm.h to re-invent stuff already in asm.h 2009-12-02 11:39:45 +01:00
alternative.h Merge branch 'perf-probes-for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2010-03-05 10:50:22 -08:00
amd_iommu.h x86/amd-iommu: Update copyright headers 2009-11-27 11:45:49 +01:00
amd_iommu_proto.h x86/amd-iommu: Fix IOMMU-API initialization for iommu=pt 2010-01-22 17:44:35 +01:00
amd_iommu_types.h x86/amd-iommu: Remove amd_iommu_pd_table 2009-11-27 14:20:37 +01:00
apb_timer.h x86, apbt: Moorestown APB system timer driver 2010-02-24 11:01:21 -08:00
apic.h x86: apic: Do not use stacked physid_mask_t 2009-11-10 05:52:07 +01:00
apicdef.h x86: io-apic: IO-APIC MMIO should not fail on resource insertion 2009-11-16 16:37:10 +01:00
apm.h
asm-offsets.h kbuild: move asm-offsets.h to include/generated 2009-12-12 13:08:14 +01:00
asm.h x86, asm: Make _ASM_EXTABLE() usable from assembly code 2009-08-31 15:14:30 -07:00
atomic.h x86: Mark atomic irq ops raw for 32bit legacy 2010-02-16 17:19:11 +01:00
atomic64_32.h x86: Split atomic64_t functions into seperate headers 2010-01-07 11:47:31 -08:00
atomic64_64.h x86: Split atomic64_t functions into seperate headers 2010-01-07 11:47:31 -08:00
auxvec.h
bios_ebda.h
bitops.h
bitsperlong.h asm-generic: introduce asm/bitsperlong.h 2009-06-11 21:02:14 +02:00
boot.h x86, setup: correct include file in <asm/boot.h> 2009-06-25 15:16:06 -07:00
bootparam.h Merge branch 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-09-18 14:05:47 -07:00
bug.h x86: Convert BUG() to use unreachable() 2009-12-05 09:10:12 -08:00
bugs.h
byteorder.h
cache.h x86: Eliminate redundant/contradicting cache line size config options 2009-11-19 04:58:34 +01:00
cacheflush.h Merge branch 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-12-08 13:27:33 -08:00
calgary.h x86: Calgary: Convert detect_calgary() to use iommu_init hook 2009-11-10 12:31:15 +01:00
calling.h
checksum.h
checksum_32.h x86: fix csum_ipv6_magic asm memory clobber 2009-10-01 16:11:12 -07:00
checksum_64.h
cmpxchg.h
cmpxchg_32.h Merge branch 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-12-05 15:32:03 -08:00
cmpxchg_64.h x86: Generate cmpxchg build failures 2009-10-09 15:57:00 +02:00
compat.h improve sys_newuname() for compat architectures 2010-03-12 15:52:32 -08:00
cpu.h
cpufeature.h x86, cpu: Print AMD virtualization features in /proc/cpuinfo 2010-02-13 15:04:40 -08:00
cpumask.h
cputime.h
current.h x86, percpu: Add 'percpu_read_stable()' interface for cacheable accesses 2009-08-04 01:28:52 +09:00
debugreg.h x86/debug: Clear reserved bits of DR6 in do_debug() 2010-01-29 02:26:10 +01:00
delay.h
desc.h x86: Make sure get_user_desc() doesn't sign extend. 2009-11-05 13:22:18 -08:00
desc_defs.h tree-wide: fix assorted typos all over the place 2009-12-04 15:39:55 +01:00
device.h x86/amd-iommu: Use dev->arch->iommu to store iommu related information 2009-11-27 14:20:32 +01:00
div64.h
dma-mapping.h dma-mapping: fix off-by-one error in dma_capable() 2009-12-16 07:20:12 -08:00
dma.h
dmi.h
ds.h
dwarf2.h x86, asm: Add 32-bit versions of the combined CFI macros 2009-08-31 15:14:29 -07:00
e820.h core: Move early_res from arch/x86 to kernel/ 2010-02-16 21:43:39 -08:00
edac.h
efi.h x86: Make 64-bit efi_ioremap use ioremap on MMIO regions 2009-08-03 13:34:25 -07:00
elf.h x86: ELF_PLAT_INIT() shouldn't worry about TIF_IA32 2010-02-16 08:51:49 -08:00
emergency-restart.h
entry_arch.h x86: UV RTC: Rename generic_interrupt to x86_platform_ipi 2009-10-14 18:27:11 +02:00
errno.h
fb.h x86-64: Allow fbdev primary video code 2010-02-16 21:22:26 -08:00
fcntl.h
fixmap.h x86: Lift restriction on the location of FIX_BTMAP_* 2009-12-30 11:57:30 +01:00
floppy.h
frame.h
ftrace.h tracing: Remove FTRACE_SYSCALL_MAX definitions 2009-08-26 21:30:39 +02:00
futex.h
gart.h x86: GART: Convert gart_iommu_hole_init() to use iommu_init hook 2009-11-10 12:31:23 +01:00
genapic.h
geode.h cs5535: drop the Geode-specific MFGPT/GPIO code 2009-12-15 08:53:28 -08:00
gpio.h
hardirq.h Merge branch 'x86-uv-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-12-08 13:38:21 -08:00
highmem.h x86, paravirt: Remove kmap_atomic_pte paravirt op. 2010-02-27 14:41:35 -08:00
hpet.h x86: Disable HPET MSI on ATI SB700/SB800 2010-01-23 06:21:58 +01:00
hugetlb.h
hw_breakpoint.h hw-breakpoints: Rewrite the hw-breakpoints layer on top of perf events 2009-11-08 15:34:42 +01:00
hw_irq.h x86, pic: Make use of legacy_pic abstraction 2010-02-19 16:25:17 -08:00
hypertransport.h
hyperv.h KVM: Add HYPER-V header file 2010-03-01 12:35:57 -03:00
hypervisor.h x86: Move tsc_calibration to x86_init_ops 2009-08-31 09:35:47 +02:00
i387.h x86, ptrace: regset extensions to support xstate 2010-02-11 15:08:17 -08:00
i8253.h
i8259.h Merge remote branch 'origin/x86/apic' into x86/mrst 2010-02-22 16:25:18 -08:00
ia32.h
ia32_unistd.h
idle.h
inat.h x86: AVX instruction set decoder support 2009-10-29 08:47:46 +01:00
inat_types.h x86: Instruction decoder API 2009-08-27 00:35:56 +02:00
init.h
insn.h x86: AVX instruction set decoder support 2009-10-29 08:47:46 +01:00
inst.h x86: Generate .byte code for some new instructions via gas macro 2009-11-09 13:52:26 -05:00
io.h x86: Merge io.h 2010-02-05 13:57:40 -08:00
io_apic.h x86, ioapic: Add dummy ioapic functions 2010-02-23 23:14:07 -08:00
ioctl.h
ioctls.h x86: remove all now-duplicate header files 2009-06-18 14:40:03 -07:00
iomap.h x86, pat: Add PAT reserve free to io_mapping* APIs 2009-08-26 15:41:16 -07:00
iommu.h x86: Move iommu_shutdown_noop to x86_init.c 2009-11-15 09:03:10 +01:00
ipcbuf.h x86: remove all now-duplicate header files 2009-06-18 14:40:03 -07:00
ipi.h
irq.h x86, legacy_irq: Remove left over nr_legacy_irqs 2010-02-24 11:01:34 -08:00
irq_regs.h
irq_remapping.h
irq_vectors.h x86, irq: Use 0x20 for the IRQ_MOVE_CLEANUP_VECTOR instead of 0x1f 2010-01-18 10:59:59 -08:00
irqflags.h x86: allow "=rm" in native_save_fl() 2009-08-25 16:47:16 -07:00
ist.h
k8.h x86: k8.h: Add struct bootnode 2009-11-08 12:55:38 +01:00
Kbuild KVM: export <asm/hyperv.h> 2010-03-01 12:36:01 -03:00
kdebug.h
kexec.h
kgdb.h
kmap_types.h kmap_types: make most arches use generic header file 2009-06-16 19:47:51 -07:00
kmemcheck.h kmemcheck: add the kmemcheck core 2009-06-13 15:37:30 +02:00
kprobes.h kprobes/x86: Support kprobes jump optimization on x86 2010-02-25 17:49:26 +01:00
kvm.h KVM: x86: Extend KVM_SET_VCPU_EVENTS with selective updates 2009-12-27 13:36:33 -02:00
kvm_emulate.h KVM: x86 emulator: fix memory access during x86 emulation 2010-03-01 12:36:11 -03:00
kvm_host.h KVM: Fix segment descriptor loading 2010-03-01 12:36:14 -03:00
kvm_para.h KVM: Implement bare minimum of HYPER-V MSRs 2010-03-01 12:35:57 -03:00
ldt.h
lguest.h Merge commit 'origin/x86/urgent' into x86/asm 2009-08-25 15:40:29 -07:00
lguest_hcall.h lguest: update commentry 2009-07-30 16:03:46 +09:30
linkage.h
local.h local_t: Remove cpu_local_xx macros 2010-01-05 15:34:49 +09:00
mach_timer.h
mach_traps.h
math_emu.h
mc146818rtc.h
mca.h
mca_dma.h
mce.h x86: mce.h: Fix warning in header checks 2010-01-13 10:41:22 +01:00
microcode.h Revert "x86: ucode-amd: Load ucode-patches once ..." 2010-01-23 06:21:59 +01:00
mman.h x86: remove all now-duplicate header files 2009-06-18 14:40:03 -07:00
mmconfig.h
mmu.h
mmu_context.h cpumask: use mm_cpumask() wrapper: x86 2009-09-24 09:34:52 +09:30
mmx.h
mmzone.h
mmzone_32.h tree-wide: fix assorted typos all over the place 2009-12-04 15:39:55 +01:00
mmzone_64.h x86, numa: Add fixed node size option for numa emulation 2010-02-15 14:34:10 -08:00
module.h Merge branch 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-09-14 07:57:32 -07:00
mpspec.h Merge branch 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-12-08 13:27:33 -08:00
mpspec_def.h
mrst.h x86, mrst: Add vrtc platform data setup code 2010-02-23 23:15:19 -08:00
msgbuf.h x86: remove all now-duplicate header files 2009-06-18 14:40:03 -07:00
msidef.h
msr-index.h x86, amd: Get multi-node CPU info from NodeId MSR instead of PCI config space 2009-12-16 15:06:23 -08:00
msr.h x86, msr: msrs_alloc/free for CONFIG_SMP=n 2009-12-16 15:36:32 -08:00
mtrr.h x86, mtrr: make mtrr_aps_delayed_init static bool 2009-08-21 17:00:02 -07:00
mutex.h
mutex_32.h
mutex_64.h
nmi.h x86, perfctr: Remove unused func avail_to_resrv_perfctr_nmi() 2009-12-28 09:36:46 +01:00
nops.h x86/tracing: comment need for atomic nop 2009-09-10 17:22:44 -04:00
numa.h
numa_32.h
numa_64.h x86, numa: Add fixed node size option for numa emulation 2010-02-15 14:34:10 -08:00
numaq.h Merge branch 'x86-mrst-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2010-03-07 15:59:39 -08:00
olpc.h x86, olpc: Use pci subarch init for OLPC 2010-02-25 19:26:23 -08:00
page.h asm-generic: rename page.h and uaccess.h 2009-06-11 21:02:17 +02:00
page_32.h
page_32_types.h
page_64.h
page_64_types.h x86, 64-bit: Clean up user address masking 2009-06-20 15:40:00 -07:00
page_types.h x86: Use the generic page_is_ram() 2010-02-01 16:58:17 -08:00
param.h x86: remove all now-duplicate header files 2009-06-18 14:40:03 -07:00
paravirt.h x86, paravirt: Remove kmap_atomic_pte paravirt op. 2010-02-27 14:41:35 -08:00
paravirt_types.h x86, paravirt: Remove kmap_atomic_pte paravirt op. 2010-02-27 14:41:35 -08:00
parport.h
pat.h x86, platform: Change is_untracked_pat_range() to bool; cleanup init 2009-11-23 17:09:59 -08:00
pci-direct.h
pci-functions.h
pci.h Merge branch 'x86-mrst-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2010-03-07 15:59:39 -08:00
pci_64.h x86: Only call dma32_reserve_bootmem 64bit !CONFIG_NUMA 2010-02-10 17:47:18 -08:00
pci_x86.h Merge branch 'x86-mrst-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2010-03-07 15:59:39 -08:00
percpu.h percpu, x86: Generic inc / dec percpu instructions 2010-01-05 15:34:50 +09:00
perf_event.h Merge branch 'perf/urgent' into perf/core 2010-01-29 10:36:22 +01:00
pgalloc.h x86, mm: Allow highmem user page tables to be disabled at boot time 2010-02-25 10:28:19 +01:00
pgtable-2level.h
pgtable-2level_types.h
pgtable-3level.h
pgtable-3level_types.h
pgtable.h x86, mm: is_untracked_pat_range() takes a normal semiclosed range 2009-11-23 17:09:59 -08:00
pgtable_32.h Merge branch 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2010-03-03 09:11:02 -08:00
pgtable_32_types.h module: merge module_alloc() finally 2009-06-12 21:47:03 +09:30
pgtable_64.h MM: Pass a PTE pointer to update_mmu_cache() rather than the PTE itself 2010-02-20 16:41:46 +00:00
pgtable_64_types.h
pgtable_types.h Merge branch 'bugfix' of git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen into x86/urgent 2009-09-23 14:35:10 +02:00
poll.h
posix_types.h
posix_types_32.h
posix_types_64.h
prctl.h
processor-cyrix.h
processor-flags.h
processor.h hw-breakpoint: Keep track of dr7 local enable bits 2010-02-19 19:06:48 +01:00
proto.h Move round_up/down to kernel.h 2010-02-12 09:42:39 -08:00
ptrace-abi.h
ptrace.h ptrace: move user_enable_single_step & co prototypes to linux/ptrace.h 2010-03-12 15:52:38 -08:00
pvclock-abi.h
pvclock.h
rdc321x_defs.h
reboot.h
reboot_fixups.h
required-features.h
resource.h
resume-trace.h
rio.h
rtc.h
rwlock.h
rwsem.h x86-64, rwsem: Avoid store forwarding hazard in __downgrade_write 2010-02-13 13:37:56 -08:00
scatterlist.h x86: remove all now-duplicate header files 2009-06-18 14:40:03 -07:00
seccomp.h
seccomp_32.h
seccomp_64.h
sections.h x86-64: align RODATA kernel section to 2MB with CONFIG_DEBUG_RODATA 2009-10-20 14:46:00 +09:00
segment.h
sembuf.h
serial.h
setup.h x86: Move pci init function to x86_init 2010-02-19 16:12:29 -08:00
setup_arch.h
shmbuf.h x86: remove all now-duplicate header files 2009-06-18 14:40:03 -07:00
shmparam.h
sigcontext.h tree-wide: fix misspelling of "definition" in comments 2009-12-04 23:41:47 +01:00
sigcontext32.h
sigframe.h
siginfo.h
signal.h asm-generic: rename termios.h, signal.h and mman.h 2009-06-11 21:01:52 +02:00
smp.h x86, lib: Add wbinvd smp helpers 2010-01-22 16:05:42 -08:00
smpboot_hooks.h
socket.h x86: remove all now-duplicate header files 2009-06-18 14:40:03 -07:00
sockios.h x86: remove all now-duplicate header files 2009-06-18 14:40:03 -07:00
sparsemem.h
spinlock.h locking: Convert raw_rwlock functions to arch_rwlock 2009-12-14 23:55:32 +01:00
spinlock_types.h locking: Convert raw_rwlock to arch_rwlock 2009-12-14 23:55:32 +01:00
srat.h
stackprotector.h x86/i386: Make sure stack-protector segment base is cache aligned 2009-09-03 21:30:51 +02:00
stacktrace.h perf: Drop useless check for ignored frame 2010-01-13 10:09:08 +01:00
stat.h
statfs.h
string.h
string_32.h x86: Use __builtin_memset and __builtin_memcpy for memset/memcpy 2009-09-28 16:43:15 -07:00
string_64.h x86: add hooks for kmemcheck 2009-06-15 12:40:02 +02:00
suspend.h
suspend_32.h
suspend_64.h
svm.h KVM: SVM: Fix SVM_CR0_SELECTIVE_MASK 2010-03-01 12:35:51 -03:00
swab.h
swiotlb.h x86: Split swiotlb initialization into two stages 2009-12-15 13:01:57 +01:00
sync_bitops.h
sys_ia32.h Add generic sys_olduname() 2010-03-12 15:52:32 -08:00
syscall.h tracing: Unify arch_syscall_addr() implementations 2010-02-17 13:07:21 +01:00
syscalls.h Add generic sys_olduname() 2010-03-12 15:52:32 -08:00
system.h Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu 2010-03-03 07:34:18 -08:00
system_64.h
tce.h
termbits.h x86: remove all now-duplicate header files 2009-06-18 14:40:03 -07:00
termios.h x86: remove all now-duplicate header files 2009-06-18 14:40:03 -07:00
thread_info.h x86: get rid of the insane TIF_ABI_PENDING bit 2010-01-29 08:22:01 -08:00
time.h x86: Move get/set_wallclock to x86_platform_ops 2009-09-16 14:34:50 +02:00
timer.h x86: Move tsc_calibration to x86_init_ops 2009-08-31 09:35:47 +02:00
timex.h time: move PIT_TICK_RATE to linux/timex.h 2009-06-16 19:47:27 -07:00
tlb.h
tlbflush.h x86: make zap_low_mapping could be used early 2009-06-12 13:50:24 +03:00
topology.h hugetlb: add generic definition of NUMA_NO_NODE 2009-12-15 08:53:12 -08:00
trampoline.h x86: Use find_e820() instead of hard coded trampoline address 2009-12-11 09:28:22 +01:00
traps.h x86: Remove unused patch_espfix_desc() 2009-07-19 18:27:52 +02:00
tsc.h x86: Move tsc_calibration to x86_init_ops 2009-08-31 09:35:47 +02:00
types.h x86: remove all now-duplicate header files 2009-06-18 14:40:03 -07:00
uaccess.h x86, 64-bit: Move K8 B step iret fixup to fault entry asm 2009-10-12 18:29:46 +02:00
uaccess_32.h x86: copy_from_user() should not return -EFAULT 2010-01-05 13:45:06 -08:00
uaccess_64.h Merge branch 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2010-02-28 10:35:09 -08:00
ucontext.h x86: remove all now-duplicate header files 2009-06-18 14:40:03 -07:00
unaligned.h
unistd.h
unistd_32.h Add generic sys_olduname() 2010-03-12 15:52:32 -08:00
unistd_64.h Add generic sys_olduname() 2010-03-12 15:52:32 -08:00
user.h x86, ptrace: regset extensions to support xstate 2010-02-11 15:08:17 -08:00
user32.h
user_32.h
user_64.h
vdso.h
vga.h
vgtod.h time: Introduce CLOCK_REALTIME_COARSE 2009-08-21 21:43:46 +02:00
virtext.h
vm86.h
vmi.h
vmi_time.h
vmware.h x86: Move tsc_calibration to x86_init_ops 2009-08-31 09:35:47 +02:00
vmx.h KVM: VMX: Rename VMX_EPT_IGMT_BIT to VMX_EPT_IPAT_BIT 2010-03-01 12:36:09 -03:00
vsyscall.h
x86_init.h Merge branch 'x86-mrst-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2010-03-07 15:59:39 -08:00
xcr.h
xor.h x86: add hooks for kmemcheck 2009-06-15 12:40:02 +02:00
xor_32.h
xor_64.h
xsave.h x86, ptrace: regset extensions to support xstate 2010-02-11 15:08:17 -08:00