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Frederic Weisbecker 61c1917f47 perf events, x86/stacktrace: Make stack walking optional 
The current print_context_stack helper that does the stack
walking job is good for usual stacktraces as it walks through
all the stack and reports even addresses that look unreliable,
which is nice when we don't have frame pointers for example.

But we have users like perf that only require reliable
stacktraces, and those may want a more adapted stack walker, so
lets make this function a callback in stacktrace_ops that users
can tune for their needs.

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
LKML-Reference: <1261024834-5336-1-git-send-regression-fweisbec@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
 		2009-12-17 09:56:19 +01:00
..
acpi Merge branch 'bugzilla-14700' into release 2009-12-15 22:35:21 -05:00
apic genirq: Convert irq_desc.lock to raw_spinlock 2009-12-14 23:55:33 +01:00
cpu perf events, x86/stacktrace: Make stack walking optional 2009-12-17 09:56:19 +01:00
.gitignore
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Makefile cs5535: drop the Geode-specific MFGPT/GPIO code 2009-12-15 08:53:28 -08:00
alternative.c 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
amd_iommu.c iommu-helper: use bitmap library 2009-12-16 07:20:18 -08:00
amd_iommu_init.c Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-12-11 20:47:59 -08:00
aperture_64.c x86: Gart: fix breakage due to IOMMU initialization cleanup 2009-12-14 08:57:40 +01:00
apm_32.c x86: Remove BKL from apm_32 2009-10-14 17:04:48 +02:00
asm-offsets.c
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asm-offsets_32.c lguest: optimize by coding restore_flags and irq_enable in assembler. 2009-06-12 22:27:03 +09:30
asm-offsets_64.c tracing: Define NR_syscalls for x86_64 2009-08-26 21:29:58 +02:00
audit_64.c
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bios_uv.c x86: uv: update XPC to handle updated BIOS interface 2009-12-16 07:20:14 -08:00
bootflag.c
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check.c
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cpuid.c Merge branch 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-12-05 15:32:35 -08:00
crash.c x86: Use x86_platform for iommu_shutdown 2009-11-08 13:12:26 +01:00
crash_dump_32.c x86: crash_dump: Fix non-pae kdump kernel memory accesses 2009-10-26 12:38:59 +01:00
crash_dump_64.c
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doublefault_32.c x86: Use get_desc_base() 2009-07-19 18:27:51 +02:00
ds.c percpu: make percpu symbols in x86 unique 2009-10-29 22:34:14 +09:00
ds_selftest.c x86, ds: fix buffer alignment in debug store selftest 2009-04-24 10:18:51 +02:00
ds_selftest.h
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dumpstack.c perf events, x86/stacktrace: Make stack walking optional 2009-12-17 09:56:19 +01:00
dumpstack.h perf events, x86/stacktrace: Make stack walking optional 2009-12-17 09:56:19 +01:00
dumpstack_32.c perf events, x86/stacktrace: Make stack walking optional 2009-12-17 09:56:19 +01:00
dumpstack_64.c perf events, x86/stacktrace: Make stack walking optional 2009-12-17 09:56:19 +01:00
e820.c x86: Use find_e820() instead of hard coded trampoline address 2009-12-11 09:28:22 +01:00
early-quirks.c
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early_printk.c x86: earlyprintk: Fix regression to handle serial,ttySn as 1 arg 2009-10-01 10:34:16 +02:00
efi.c x86: Make EFI RTC function depend on 32bit again 2009-10-27 12:35:48 +01:00
efi_32.c
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efi_64.c x86: Make 64-bit efi_ioremap use ioremap on MMIO regions 2009-08-03 13:34:25 -07:00
efi_stub_32.S
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efi_stub_64.S
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entry_32.S x86, 32-bit: Use same regs as 64-bit for kernel_thread_helper 2009-12-10 15:55:36 -08:00
entry_64.S Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-12-16 12:02:37 -08:00
ftrace.c 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
head.c
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head32.c x86: Use find_e820() instead of hard coded trampoline address 2009-12-11 09:28:22 +01:00
head64.c x86: Use find_e820() instead of hard coded trampoline address 2009-12-11 09:28:22 +01:00
head_32.S x86-32: Use symbolic constants, safer CPUID when enabling EFER.NX 2009-11-16 13:44:56 -08:00
head_64.S 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
hpet.c x86: hpet: Make WARN_ON understandable 2009-11-27 20:37:41 +01:00
hw_breakpoint.c hw-breakpoints: Use overflow handler instead of the event callback 2009-12-06 08:27:18 +01:00
i386_ksyms_32.c x86: Don't generate cmpxchg8b_emu if CONFIG_X86_CMPXCHG64=y 2009-10-01 08:42:24 +02:00
i387.c
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i8237.c
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i8253.c x86: Do not unregister PIT clocksource on PIT oneshot setup/shutdown 2009-08-21 21:13:37 +02:00
i8259.c
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init_task.c Use new __init_task_data macro in arch init_task.c files. 2009-09-21 06:27:08 +02:00
io_delay.c
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ioport.c x86-64, paravirt: Call set_iopl_mask() on 64 bits 2009-12-09 16:54:08 -08:00
irq.c genirq: Convert irq_desc.lock to raw_spinlock 2009-12-14 23:55:33 +01:00
irq_32.c x86: Unify fixup_irqs() for 32-bit and 64-bit kernels 2009-11-02 15:56:34 +01:00
irq_64.c x86: Unify fixup_irqs() for 32-bit and 64-bit kernels 2009-11-02 15:56:34 +01:00
irqinit.c x86: UV RTC: Rename generic_interrupt to x86_platform_ipi 2009-10-14 18:27:11 +02:00
k8.c
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kdebugfs.c
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kgdb.c kgdb,x86: do not set kgdb_single_step on x86 2009-12-11 08:43:18 -06:00
kprobes.c Merge branch 'for-next' into for-linus 2009-12-07 18:36:35 +01:00
kvm.c KVM guest: do not batch pte updates from interrupt context 2009-09-10 18:10:50 +03:00
kvmclock.c 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
ldt.c cpumask: use mm_cpumask() wrapper: x86 2009-09-24 09:34:52 +09:30
machine_kexec_32.c 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
machine_kexec_64.c hw-breakpoints: cleanup HW Breakpoint registers before kexec 2009-06-02 22:47:00 +02:00
mca_32.c
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microcode_amd.c arch/x86/kernel/microcode*: Use pr_fmt() and remove duplicated KERN_ERR prefix 2009-12-09 08:25:57 +01:00
microcode_core.c arch/x86/kernel/microcode*: Use pr_fmt() and remove duplicated KERN_ERR prefix 2009-12-09 08:25:57 +01:00
microcode_intel.c arch/x86/kernel/microcode*: Use pr_fmt() and remove duplicated KERN_ERR prefix 2009-12-09 08:25:57 +01:00
mmconf-fam10h_64.c
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module.c module: cleanup FIXME comments about trimming exception table entries. 2009-06-12 21:47:05 +09:30
mpparse.c x86: Use find_e820() instead of hard coded trampoline address 2009-12-11 09:28:22 +01:00
mrst.c x86: Add Moorestown early detection 2009-08-31 11:09:40 +02:00
msr.c x86, msr: Remove incorrect, duplicated code in the MSR driver 2009-12-14 10:05:05 -08:00
olpc.c cs5535: move VSA2 checks into linux/cs5535.h 2009-12-15 08:53:28 -08:00
paravirt-spinlocks.c locking: Convert __raw_spin* functions to arch_spin* 2009-12-14 23:55:32 +01:00
paravirt.c 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
paravirt_patch_32.c
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paravirt_patch_64.c
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pci-calgary_64.c iommu-helper: use bitmap library 2009-12-16 07:20:18 -08:00
pci-dma.c x86: Split swiotlb initialization into two stages 2009-12-15 13:01:57 +01:00
pci-gart_64.c iommu-helper: use bitmap library 2009-12-16 07:20:18 -08:00
pci-nommu.c x86: Kill bad_dma_address variable 2009-11-17 07:53:21 +01:00
pci-swiotlb.c x86: Split swiotlb initialization into two stages 2009-12-15 13:01:57 +01:00
pcspeaker.c
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pmtimer_64.c
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probe_roms_32.c
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process.c Merge branch 'x86/asm' into x86/urgent 2009-12-15 20:33:28 +01:00
process_32.c Merge branch 'x86/asm' into x86/urgent 2009-12-15 20:33:28 +01:00
process_64.c Merge branch 'x86/asm' into x86/urgent 2009-12-15 20:33:28 +01:00
ptrace.c ptrace: x86: change syscall_trace_leave() to rely on tracehook when stepping 2009-12-16 07:20:08 -08:00
pvclock.c x86: Fix warning in pvclock.c 2009-07-14 16:25:05 +02:00
quirks.c x86: AMD Northbridge: Verify NB's node is online 2009-11-16 15:43:05 +01:00
reboot.c Merge branch 'linus' into x86/urgent 2009-12-07 13:14:18 +01:00
reboot_fixups_32.c cs5535: move the DIVIL MSR definition into linux/cs5535.h 2009-12-15 08:53:28 -08:00
relocate_kernel_32.S
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relocate_kernel_64.S
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rtc.c 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
scx200_32.c
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setup.c x86: Use find_e820() instead of hard coded trampoline address 2009-12-11 09:28:22 +01:00
setup_percpu.c x86: setup_percpu.c: Use pr_<level> and add pr_fmt(fmt) 2009-12-10 08:57:50 +01:00
sfi.c SFI: remove unneeded includes 2009-09-15 15:08:40 -04:00
signal.c x86: Merge sys_sigaltstack 2009-12-09 16:28:59 -08:00
smp.c Revert "x86, timers: Check for pending timers after (device) interrupts" 2009-10-09 15:58:20 +02:00
smpboot.c x86: Limit the number of processor bootup messages 2009-12-11 15:16:00 -08:00
stacktrace.c perf events, x86/stacktrace: Make stack walking optional 2009-12-17 09:56:19 +01:00
step.c x86: Use get_desc_base() 2009-07-19 18:27:51 +02:00
sys_i386_32.c Unify sys_mmap* 2009-12-11 06:44:29 -05:00
sys_x86_64.c Unify sys_mmap* 2009-12-11 06:44:29 -05:00
syscall_64.c
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syscall_table_32.S Unify sys_mmap* 2009-12-11 06:44:29 -05:00
tboot.c x86, intel_txt: clean up the impact on generic code, unbreak non-x86 2009-09-01 18:25:07 -07:00
tce_64.c
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test_nx.c
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test_rodata.c
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time.c x86: fix kernel panic on 32 bits when profiling 2009-10-12 11:53:51 -07:00
tlb_uv.c 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
tls.c
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tls.h
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topology.c
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trampoline.c x86: Use find_e820() instead of hard coded trampoline address 2009-12-11 09:28:22 +01:00
trampoline_32.S x86: cpuinit-annotate SMP boot trampolines properly 2009-09-20 20:23:37 +02:00
trampoline_64.S x86: Fix Suspend to RAM freeze on Acer Aspire 1511Lmi laptop 2009-10-12 18:06:48 +02:00
traps.c Merge commit 'perf/core' into perf/hw-breakpoint 2009-10-18 01:12:33 +02:00
tsc.c Merge branch 'linus' into x86/urgent 2009-09-20 20:25:03 +02:00
tsc_sync.c locking: Convert __raw_spin* functions to arch_spin* 2009-12-14 23:55:32 +01:00
uv_irq.c x86, apic: Move SGI UV functionality out of generic IO-APIC code 2009-10-14 09:17:09 +02:00
uv_sysfs.c
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uv_time.c x86: UV RTC: Always enable RTC clocksource 2009-11-23 19:41:30 +01:00
verify_cpu_64.S
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visws_quirks.c 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
vm86_32.c x86, 32-bit: Convert sys_vm86 & sys_vm86old 2009-12-09 16:29:23 -08:00
vmi_32.c x86, vmi: Mark VMI deprecated and schedule it for removal 2009-10-08 22:27:55 +02:00
vmiclock_32.c x86: vmiclock: Fix printk format 2009-11-18 12:31:06 +01:00
vmlinux.lds.S x86: Regex support and known-movable symbols for relocs, fix _end 2009-12-14 13:55:20 -08:00
vsmp_64.c
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vsyscall_64.c Merge branch 'timers-for-linus-urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-12-08 19:28:09 -08:00
x86_init.c 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
x8664_ksyms_64.c Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-12-16 12:02:37 -08:00
xsave.c x86-64: fix FPU corruption with signals and preemption 2009-04-20 14:33:00 -07:00