diff options
author | Tejun Heo <tj@kernel.org> | 2013-01-23 09:31:01 -0800 |
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committer | Tejun Heo <tj@kernel.org> | 2013-01-23 09:31:01 -0800 |
commit | c14afb82ffff5903a701a9fb737ac20f36d1f755 (patch) | |
tree | 304dcc7b1d7b9a5f564f7e978228e61ef41fbef2 /arch/alpha/include/asm/ptrace.h | |
parent | 0fdff3ec6d87856cdcc99e69cf42143fdd6c56b4 (diff) | |
parent | 1d8549085377674224bf30a368284c391a3ce40e (diff) |
Merge branch 'master' into for-3.9-async
To receive f56c3196f251012de9b3ebaff55732a9074fdaae ("async: fix
__lowest_in_progress()").
Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'arch/alpha/include/asm/ptrace.h')
-rw-r--r-- | arch/alpha/include/asm/ptrace.h | 69 |
1 files changed, 2 insertions, 67 deletions
diff --git a/arch/alpha/include/asm/ptrace.h b/arch/alpha/include/asm/ptrace.h index b4c5b2fbb647..21128505ddbe 100644 --- a/arch/alpha/include/asm/ptrace.h +++ b/arch/alpha/include/asm/ptrace.h @@ -1,77 +1,14 @@ #ifndef _ASMAXP_PTRACE_H #define _ASMAXP_PTRACE_H +#include <uapi/asm/ptrace.h> -/* - * This struct defines the way the registers are stored on the - * kernel stack during a system call or other kernel entry - * - * NOTE! I want to minimize the overhead of system calls, so this - * struct has as little information as possible. I does not have - * - * - floating point regs: the kernel doesn't change those - * - r9-15: saved by the C compiler - * - * This makes "fork()" and "exec()" a bit more complex, but should - * give us low system call latency. - */ - -struct pt_regs { - unsigned long r0; - unsigned long r1; - unsigned long r2; - unsigned long r3; - unsigned long r4; - unsigned long r5; - unsigned long r6; - unsigned long r7; - unsigned long r8; - unsigned long r19; - unsigned long r20; - unsigned long r21; - unsigned long r22; - unsigned long r23; - unsigned long r24; - unsigned long r25; - unsigned long r26; - unsigned long r27; - unsigned long r28; - unsigned long hae; -/* JRP - These are the values provided to a0-a2 by PALcode */ - unsigned long trap_a0; - unsigned long trap_a1; - unsigned long trap_a2; -/* These are saved by PAL-code: */ - unsigned long ps; - unsigned long pc; - unsigned long gp; - unsigned long r16; - unsigned long r17; - unsigned long r18; -}; - -/* - * This is the extended stack used by signal handlers and the context - * switcher: it's pushed after the normal "struct pt_regs". - */ -struct switch_stack { - unsigned long r9; - unsigned long r10; - unsigned long r11; - unsigned long r12; - unsigned long r13; - unsigned long r14; - unsigned long r15; - unsigned long r26; - unsigned long fp[32]; /* fp[31] is fpcr */ -}; - -#ifdef __KERNEL__ #define arch_has_single_step() (1) #define user_mode(regs) (((regs)->ps & 8) != 0) #define instruction_pointer(regs) ((regs)->pc) #define profile_pc(regs) instruction_pointer(regs) +#define current_user_stack_pointer() rdusp() #define task_pt_regs(task) \ ((struct pt_regs *) (task_stack_page(task) + 2*PAGE_SIZE) - 1) @@ -83,5 +20,3 @@ struct switch_stack { #define force_successful_syscall_return() (current_pt_regs()->r0 = 0) #endif - -#endif |