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| author |   Ingo Molnar <mingo@elte.hu> | 2008-10-12 11:32:17 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-10-12 11:32:17 +0200 |
| commit | 206855c321adee56db3946ca09a5887cddb9d598 (patch) | |
| tree | 13a2729d4d0e37170552bd9ad3c6bba71ba0c55c /include/asm-x86/ptrace.h | |
| parent | signals: demultiplexing SIGTRAP signal, fix (diff) | |
| parent | x86: fix early panic on amd64 due to typo in supported CPU section (diff) | |
| download | linux-dev-206855c321adee56db3946ca09a5887cddb9d598.tar.xz linux-dev-206855c321adee56db3946ca09a5887cddb9d598.zip | |
Merge branch 'x86/urgent' into core/signal
Conflicts:
arch/x86/kernel/signal_64.c
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 c2f368273079..ac578f11c1c5 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); |