diff options
| author | Ingo Molnar <mingo@elte.hu> | 2008-10-06 16:17:23 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-10-06 16:17:23 +0200 |
| commit | 19268ed7449c561694d048a34601a30e2d1aaf79 (patch) | |
| tree | 6f3f28ddac5d2b1cecd0f18ccf283f076839532a /include/asm-x86/ptrace.h | |
| parent | b8cd9d056bbc5f2630ab1787dbf76f83bbb517c0 (diff) | |
| parent | 493cd9122af5bd0b219974a48f0e31da0c29ff7e (diff) | |
Merge branch 'x86/pebs' into x86-v28-for-linus-phase1
Conflicts:
include/asm-x86/ds.h
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/asm-x86/ptrace.h')
| -rw-r--r-- | include/asm-x86/ptrace.h | 38 |
1 files changed, 36 insertions, 2 deletions
diff --git a/include/asm-x86/ptrace.h b/include/asm-x86/ptrace.h index d464f252edc3..45c75238cd08 100644 --- a/include/asm-x86/ptrace.h +++ b/include/asm-x86/ptrace.h @@ -127,14 +127,48 @@ struct pt_regs { #endif /* __KERNEL__ */ #endif /* !__i386__ */ + +#ifdef CONFIG_X86_PTRACE_BTS +/* a branch trace record entry + * + * In order to unify the interface between various processor versions, + * we use the below data structure for all processors. + */ +enum bts_qualifier { + BTS_INVALID = 0, + BTS_BRANCH, + BTS_TASK_ARRIVES, + BTS_TASK_DEPARTS +}; + +struct bts_struct { + __u64 qualifier; + union { + /* BTS_BRANCH */ + struct { + __u64 from_ip; + __u64 to_ip; + } lbr; + /* BTS_TASK_ARRIVES or + BTS_TASK_DEPARTS */ + __u64 jiffies; + } variant; +}; +#endif /* CONFIG_X86_PTRACE_BTS */ + #ifdef __KERNEL__ -/* the DS BTS struct is used for ptrace as well */ -#include <asm/ds.h> +#include <linux/init.h> +struct cpuinfo_x86; struct task_struct; +#ifdef CONFIG_X86_PTRACE_BTS +extern void __cpuinit ptrace_bts_init_intel(struct cpuinfo_x86 *); extern void ptrace_bts_take_timestamp(struct task_struct *, enum bts_qualifier); +#else +#define ptrace_bts_init_intel(config) do {} while (0) +#endif /* CONFIG_X86_PTRACE_BTS */ extern unsigned long profile_pc(struct pt_regs *regs); |