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authorIngo Molnar <mingo@elte.hu>2008-09-10 08:20:51 +0200
committerIngo Molnar <mingo@elte.hu>2008-09-10 08:20:51 +0200
commit81faaae45701484bd7368336e02f2a846153b22f (patch)
treed7d8dcafe5bb22decb0024537478fb667b0c896b /arch/x86/Kconfig.cpu
parentf69feff720497237ae9dd2f4604921bd3080c421 (diff)
parent3c9339049df5cc3a468c11de6c4101a1ea8c3d83 (diff)
Merge branch 'x86/pebs' into x86/unify-cpu-detect
Conflicts: arch/x86/Kconfig.cpu include/asm-x86/ds.h Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/Kconfig.cpu')
-rw-r--r--arch/x86/Kconfig.cpu18
1 files changed, 18 insertions, 0 deletions
diff --git a/arch/x86/Kconfig.cpu b/arch/x86/Kconfig.cpu
index ab77d409fee..1b29d6a8756 100644
--- a/arch/x86/Kconfig.cpu
+++ b/arch/x86/Kconfig.cpu
@@ -477,3 +477,21 @@ config CPU_SUP_UMC_32
depends on !64BIT
help
This enables extended support for UMC processors
+
+config X86_DS
+ bool "Debug Store support"
+ default y
+ help
+ Add support for Debug Store.
+ This allows the kernel to provide a memory buffer to the hardware
+ to store various profiling and tracing events.
+
+config X86_PTRACE_BTS
+ bool "ptrace interface to Branch Trace Store"
+ default y
+ depends on (X86_DS && X86_DEBUGCTLMSR)
+ help
+ Add a ptrace interface to allow collecting an execution trace
+ of the traced task.
+ This collects control flow changes in a (cyclic) buffer and allows
+ debuggers to fill in the gaps and show an execution trace of the debuggee.