26 Apr, 2008
1 commit
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Now that there are no more special cases in sys32_ptrace, we
can convert to using the generic compat_sys_ptrace entry point.
The sys32_ptrace function gets simpler and becomes compat_arch_ptrace.Signed-off-by: Roland McGrath
Signed-off-by: Ingo Molnar
17 Apr, 2008
4 commits
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This patch renames VM_MASK to X86_VM_MASK (which
in turn defined as alias to X86_EFLAGS_VM) to better
distinguish from virtual memory flags. We can't just
use X86_EFLAGS_VM instead because it is also used
for conditional compilationSigned-off-by: Cyrill Gorcunov
Signed-off-by: Ingo Molnar -
Signed-off-by: Joe Perches
Signed-off-by: Ingo Molnar -
Signed-off-by: Harvey Harrison
Cc: Roland McGrath
Signed-off-by: Ingo Molnar
Signed-off-by: Thomas Gleixner -
Signed-off-by: Harvey Harrison
Cc: Roland McGrath
Signed-off-by: Ingo Molnar
Signed-off-by: Thomas Gleixner
30 Jan, 2008
15 commits
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Choose a less generic name for such a special case. Add
a comment explaining the odd use in X86_32.Change the one user of stack_pointer.
Signed-off-by: Harvey Harrison
Signed-off-by: Ingo Molnar
Signed-off-by: Thomas Gleixner -
Leave definition of pt_regs in its own section, move all kernel
code to section afterwards, unify prototype definitions, has some
conditional prototypes to make it clear what was only defined in
32 and 64 bit.Signed-off-by: Harvey Harrison
Signed-off-by: Ingo Molnar
Signed-off-by: Thomas Gleixner -
Unify the definiton of:
v8086_mode
user_mode
user_mode_vm
stack_pointer
instruction_pointer
frame_pointerin ptrace.h to make it clear where the differences are between
32 and 64 bit. Changes macros to static inlines as well.Signed-off-by: Harvey Harrison
Signed-off-by: Ingo Molnar
Signed-off-by: Thomas Gleixner -
is_prefetch was the last user of get_segment_eip and only on
X86_32. This function returned the faulting instruction's
address and set the upper segment limit.Instead, use the convert_ip_to_linear helper and rely on
probe_kernel_address to do the segment checks which was
already done everywhere the segment limit was being checked
on X86_32.Remove get_segment_eip as well.
Signed-off-by: Harvey Harrison
Signed-off-by: Ingo Molnar
Signed-off-by: Thomas Gleixner -
Rename convert_rip_to_linear to convert_ip_to_linear for shared
X86_32|64 use.Signed-off-by: Harvey Harrison
Signed-off-by: Ingo Molnar
Signed-off-by: Thomas Gleixner -
get_segment_eip has similarities to convert_rip_to_linear(),
and is used in a similar context. Move get_segment_eip to
step.c to allow easier consolidation.Signed-off-by: Harvey Harrison
Signed-off-by: Ingo Molnar
Signed-off-by: Thomas Gleixner -
Here's the new ptrace BTS API that supports two different overflow handling mechanisms (wrap-around and buffer-full-signal) to support two different use cases (debugging and profiling).
It further combines buffer allocation and configuration.
Opens:
- memory rlimit
- overflow signalWhat would be the right signal to use?
Signed-off-by: Markus Metzger
Signed-off-by: Ingo Molnar
Signed-off-by: Thomas Gleixner -
Resend using different mail client
Changes to the last version:
- split implementation into two layers: ds/bts and ptrace
- renamed TIF's
- save/restore ds save area msr in __switch_to_xtra()
- make block-stepping only look at BTF bitSigned-off-by: Markus Metzger
Signed-off-by: Suresh Siddha
Signed-off-by: Ingo Molnar
Signed-off-by: Thomas Gleixner -
This switches over the 64-bit build to use the shared ptrace code,
instead of the old ptrace_64.c and arch/x86/ia32/ptrace32.c code.Signed-off-by: Roland McGrath
Signed-off-by: Ingo Molnar
Signed-off-by: Thomas Gleixner -
This removes the EF_* enum from . It is no longer used,
and duplicates the X86_EFLAGS_* constants from .Signed-off-by: Roland McGrath
Signed-off-by: Ingo Molnar
Signed-off-by: Thomas Gleixner -
We have a lot of code which differs only by the naming of specific
members of structures that contain registers. In order to enable
additional unifications, this patch drops the e- or r- size prefix
from the register names in struct pt_regs, and drops the x- prefixes
for segment registers on the 32-bit side.This patch also performs the equivalent renames in some additional
places that might be candidates for unification in the future.Signed-off-by: H. Peter Anvin
Signed-off-by: Ingo Molnar
Signed-off-by: Thomas Gleixner -
This implements user-mode step-until-branch on x86 using the BTF bit
in MSR_IA32_DEBUGCTLMSR. It's just like single-step, only less so.Signed-off-by: Roland McGrath
Signed-off-by: Ingo Molnar
Signed-off-by: Thomas Gleixner -
This cleans up the 64-bit ptrace code to separate the guts of the
debug register access from the implementation of PTRACE_PEEKUSR and
PTRACE_POKEUSR. The new functions ptrace_[gs]et_debugreg are made
global so that the ia32 code can later be changed to call them too.Signed-off-by: Roland McGrath
Signed-off-by: Ingo Molnar
Signed-off-by: Thomas Gleixner -
This defines the new standard arch_has_single_step macro. It makes the
existing set_singlestep and clear_singlestep entry points global, and
renames them to the new standard names user_enable_single_step and
user_disable_single_step, respectively.Signed-off-by: Roland McGrath
Signed-off-by: Ingo Molnar
Signed-off-by: Thomas Gleixner -
This consolidates the four different places that implemented the same
encoding magic for the GDT-slot 32-bit TLS support. The old tls32.c was
renamed and is now only slightly modified to be the shared implementation.Signed-off-by: Roland McGrath
Cc: Andrew Morton
Cc: Zachary Amsden
Signed-off-by: Thomas Gleixner
Signed-off-by: Ingo Molnar
Signed-off-by: Thomas Gleixner
15 Nov, 2007
1 commit
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x86 32-bit isn't saving the stack pointer to pt_regs->esp when an
interrupt occurs.Signed-off-by: Jan Blunck
Tested-by: Robert Fitzsimons
Cc: Andi Kleen
Cc: Ingo Molnar
Cc: Thomas Gleixner
Cc: Philippe Elie
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
24 Oct, 2007
1 commit
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Signed-off-by: Ingo Molnar
Signed-off-by: Thomas Gleixner
11 Oct, 2007
1 commit
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Move the headers to include/asm-x86 and fixup the
header install make rulesSigned-off-by: Thomas Gleixner
Signed-off-by: Ingo Molnar