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authorIngo Molnar <mingo@elte.hu>2009-11-21 14:07:23 +0100
committerIngo Molnar <mingo@elte.hu>2009-11-21 14:07:23 +0100
commit96200591a34f8ecb98481c626125df43a2463b55 (patch)
tree314c376b01f254d04f9aaf449b1f9147ad177fa6 /arch/x86/include/asm/processor.h
parent7031281e02bf951a2259849217193fb9d75a9762 (diff)
parent68efa37df779b3e04280598e8b5b3a1919b65fee (diff)
downloadop-kernel-dev-96200591a34f8ecb98481c626125df43a2463b55.zip
op-kernel-dev-96200591a34f8ecb98481c626125df43a2463b55.tar.gz
Merge branch 'tracing/hw-breakpoints' into perf/core
Conflicts: arch/x86/kernel/kprobes.c kernel/trace/Makefile Merge reason: hw-breakpoints perf integration is looking good in testing and in reviews, plus conflicts are mounting up - so merge & resolve. Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/include/asm/processor.h')
-rw-r--r--arch/x86/include/asm/processor.h14
1 files changed, 7 insertions, 7 deletions
diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h
index c978648..6f8ec1c 100644
--- a/arch/x86/include/asm/processor.h
+++ b/arch/x86/include/asm/processor.h
@@ -30,6 +30,7 @@ struct mm_struct;
#include <linux/math64.h>
#include <linux/init.h>
+#define HBP_NUM 4
/*
* Default implementation of macro that returns current
* instruction pointer ("program counter").
@@ -422,6 +423,8 @@ extern unsigned int xstate_size;
extern void free_thread_xstate(struct task_struct *);
extern struct kmem_cache *task_xstate_cachep;
+struct perf_event;
+
struct thread_struct {
/* Cached TLS descriptors: */
struct desc_struct tls_array[GDT_ENTRY_TLS_ENTRIES];
@@ -443,13 +446,10 @@ struct thread_struct {
unsigned long fs;
#endif
unsigned long gs;
- /* Hardware debugging registers: */
- unsigned long debugreg0;
- unsigned long debugreg1;
- unsigned long debugreg2;
- unsigned long debugreg3;
- unsigned long debugreg6;
- unsigned long debugreg7;
+ /* Save middle states of ptrace breakpoints */
+ struct perf_event *ptrace_bps[HBP_NUM];
+ /* Debug status used for traps, single steps, etc... */
+ unsigned long debugreg6;
/* Fault info: */
unsigned long cr2;
unsigned long trap_no;
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