From 952974ac61f686896bd4134dae106a886a5589f1 Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Fri, 12 Feb 2010 13:38:40 +0100 Subject: s390: Add pt_regs register and stack access API This API is needed for the kprobe-based event tracer. Signed-off-by: Heiko Carstens Reviewed-by: Masami Hiramatsu Cc: Martin Schwidefsky LKML-Reference: <20100212123840.GB27548@osiris.boeblingen.de.ibm.com> Signed-off-by: Frederic Weisbecker --- arch/s390/include/asm/ptrace.h | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) (limited to 'arch/s390/include/asm/ptrace.h') diff --git a/arch/s390/include/asm/ptrace.h b/arch/s390/include/asm/ptrace.h index 95dcf183a28d..dd2d913afcae 100644 --- a/arch/s390/include/asm/ptrace.h +++ b/arch/s390/include/asm/ptrace.h @@ -492,13 +492,24 @@ struct user_regs_struct struct task_struct; extern void user_enable_single_step(struct task_struct *); extern void user_disable_single_step(struct task_struct *); +extern void show_regs(struct pt_regs * regs); #define user_mode(regs) (((regs)->psw.mask & PSW_MASK_PSTATE) != 0) #define instruction_pointer(regs) ((regs)->psw.addr & PSW_ADDR_INSN) #define user_stack_pointer(regs)((regs)->gprs[15]) #define regs_return_value(regs)((regs)->gprs[2]) #define profile_pc(regs) instruction_pointer(regs) -extern void show_regs(struct pt_regs * regs); + +int regs_query_register_offset(const char *name); +const char *regs_query_register_name(unsigned int offset); +unsigned long regs_get_register(struct pt_regs *regs, unsigned int offset); +unsigned long regs_get_kernel_stack_nth(struct pt_regs *regs, unsigned int n); + +static inline unsigned long kernel_stack_pointer(struct pt_regs *regs) +{ + return regs->gprs[15] & PSW_ADDR_INSN; +} + #endif /* __KERNEL__ */ #endif /* __ASSEMBLY__ */ -- cgit