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(parent: 225f2d3) | patch
x86: debugctlmsr arch_has_block_step
authorRoland McGrath <roland@redhat.com>
Wed, 30 Jan 2008 12:30:54 +0000 (13:30 +0100)
committerIngo Molnar <mingo@elte.hu>
Wed, 30 Jan 2008 12:30:54 +0000 (13:30 +0100)
commitfdccc6e4728e6685a345166a29f7c1a35163cfac
treebd21d2094eacca5b07d5ee5977cb0ad57ebc5c02tree | snapshot
parent225f2d3ddd835c17543c99ce580271efb41c783acommit | diff
x86: debugctlmsr arch_has_block_step

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 <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
arch/x86/kernel/step.c diff | blob | history
arch/x86/kernel/traps_32.c diff | blob | history
arch/x86/kernel/traps_64.c diff | blob | history
include/asm-x86/ptrace.h diff | blob | history
Linux Kernel Source Tree.