diff options
Diffstat (limited to 'arch/arc/include/asm')
| -rw-r--r-- | arch/arc/include/asm/perf_event.h | 4 | ||||
| -rw-r--r-- | arch/arc/include/asm/ptrace.h | 27 | ||||
| -rw-r--r-- | arch/arc/include/asm/syscall.h | 2 | ||||
| -rw-r--r-- | arch/arc/include/asm/thread_info.h | 5 |
4 files changed, 37 insertions, 1 deletions
diff --git a/arch/arc/include/asm/perf_event.h b/arch/arc/include/asm/perf_event.h index 4c919c0f4b30..d5719a260864 100644 --- a/arch/arc/include/asm/perf_event.h +++ b/arch/arc/include/asm/perf_event.h @@ -63,4 +63,8 @@ struct arc_reg_cc_build { #define PERF_COUNT_ARC_HW_MAX (PERF_COUNT_HW_MAX + 8) +#ifdef CONFIG_PERF_EVENTS +#define perf_arch_bpf_user_pt_regs(regs) (struct user_regs_struct *)regs +#endif + #endif /* __ASM_PERF_EVENT_H */ diff --git a/arch/arc/include/asm/ptrace.h b/arch/arc/include/asm/ptrace.h index cca8d6583e31..5869a74c0db2 100644 --- a/arch/arc/include/asm/ptrace.h +++ b/arch/arc/include/asm/ptrace.h @@ -8,6 +8,7 @@ #define __ASM_ARC_PTRACE_H #include <uapi/asm/ptrace.h> +#include <linux/compiler.h> #ifndef __ASSEMBLY__ @@ -54,6 +55,9 @@ struct pt_regs { unsigned long user_r25; }; + +#define MAX_REG_OFFSET offsetof(struct pt_regs, user_r25) + #else struct pt_regs { @@ -102,6 +106,8 @@ struct pt_regs { unsigned long status32; }; +#define MAX_REG_OFFSET offsetof(struct pt_regs, status32) + #endif /* Callee saved registers - need to be saved only when you are scheduled out */ @@ -154,6 +160,27 @@ static inline void instruction_pointer_set(struct pt_regs *regs, { instruction_pointer(regs) = val; } + +static inline unsigned long kernel_stack_pointer(struct pt_regs *regs) +{ + return regs->sp; +} + +extern int regs_query_register_offset(const char *name); +extern const char *regs_query_register_name(unsigned int offset); +extern bool regs_within_kernel_stack(struct pt_regs *regs, unsigned long addr); +extern unsigned long regs_get_kernel_stack_nth(struct pt_regs *regs, + unsigned int n); + +static inline unsigned long regs_get_register(struct pt_regs *regs, + unsigned int offset) +{ + if (unlikely(offset > MAX_REG_OFFSET)) + return 0; + + return *(unsigned long *)((unsigned long)regs + offset); +} + #endif /* !__ASSEMBLY__ */ #endif /* __ASM_PTRACE_H */ diff --git a/arch/arc/include/asm/syscall.h b/arch/arc/include/asm/syscall.h index 94529e89dff0..9709256e31c8 100644 --- a/arch/arc/include/asm/syscall.h +++ b/arch/arc/include/asm/syscall.h @@ -12,6 +12,8 @@ #include <asm/unistd.h> #include <asm/ptrace.h> /* in_syscall() */ +extern void *sys_call_table[]; + static inline long syscall_get_nr(struct task_struct *task, struct pt_regs *regs) { diff --git a/arch/arc/include/asm/thread_info.h b/arch/arc/include/asm/thread_info.h index 1e0b2e3914d5..6ba7fe417095 100644 --- a/arch/arc/include/asm/thread_info.h +++ b/arch/arc/include/asm/thread_info.h @@ -78,9 +78,9 @@ static inline __attribute_const__ struct thread_info *current_thread_info(void) #define TIF_SYSCALL_AUDIT 4 /* syscall auditing active */ #define TIF_NOTIFY_SIGNAL 5 /* signal notifications exist */ #define TIF_SYSCALL_TRACE 15 /* syscall trace active */ - /* true if poll_idle() is polling TIF_NEED_RESCHED */ #define TIF_MEMDIE 16 +#define TIF_SYSCALL_TRACEPOINT 17 /* syscall tracepoint instrumentation */ #define _TIF_SYSCALL_TRACE (1<<TIF_SYSCALL_TRACE) #define _TIF_NOTIFY_RESUME (1<<TIF_NOTIFY_RESUME) @@ -89,11 +89,14 @@ static inline __attribute_const__ struct thread_info *current_thread_info(void) #define _TIF_SYSCALL_AUDIT (1<<TIF_SYSCALL_AUDIT) #define _TIF_NOTIFY_SIGNAL (1<<TIF_NOTIFY_SIGNAL) #define _TIF_MEMDIE (1<<TIF_MEMDIE) +#define _TIF_SYSCALL_TRACEPOINT (1<<TIF_SYSCALL_TRACEPOINT) /* work to do on interrupt/exception return */ #define _TIF_WORK_MASK (_TIF_NEED_RESCHED | _TIF_SIGPENDING | \ _TIF_NOTIFY_RESUME | _TIF_NOTIFY_SIGNAL) +#define _TIF_SYSCALL_WORK (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_TRACEPOINT) + /* * _TIF_ALLWORK_MASK includes SYSCALL_TRACE, but we don't need it. * SYSCALL_TRACE is anyway separately/unconditionally tested right after a |