diff options
Diffstat (limited to 'arch/arc/include/asm/ptrace.h')
| -rw-r--r-- | arch/arc/include/asm/ptrace.h | 24 |
1 files changed, 20 insertions, 4 deletions
diff --git a/arch/arc/include/asm/ptrace.h b/arch/arc/include/asm/ptrace.h index 3afadefe335f..3ec89f467ac3 100644 --- a/arch/arc/include/asm/ptrace.h +++ b/arch/arc/include/asm/ptrace.h @@ -50,7 +50,17 @@ struct pt_regs { long r0; long sp; /* user/kernel sp depending on where we came from */ long orig_r0; - long orig_r8; /*to distinguish bet excp, sys call, int1 or int2 */ + + /*to distinguish bet excp, syscall, irq */ + union { +#ifdef CONFIG_CPU_BIG_ENDIAN + /* so that assembly code is same for LE/BE */ + unsigned long orig_r8:16, event:16; +#else + unsigned long event:16, orig_r8:16; +#endif + long orig_r8_word; + }; }; /* Callee saved registers - need to be saved only when you are scheduled out */ @@ -87,9 +97,8 @@ struct callee_regs { sp; \ }) -/* return 1 if in syscall, 0 if Intr or Exception */ -#define in_syscall(regs) (((regs->orig_r8) >= 0 && \ - (regs->orig_r8 <= NR_syscalls)) ? 1 : 0) +#define in_syscall(regs) (regs->event & orig_r8_IS_SCALL) +#define in_brkpt_trap(regs) (regs->event & orig_r8_IS_BRKPT) #define current_pt_regs() \ ({ \ @@ -101,6 +110,13 @@ struct callee_regs { #endif /* !__ASSEMBLY__ */ +#define orig_r8_IS_SCALL 0x0001 +#define orig_r8_IS_SCALL_RESTARTED 0x0002 +#define orig_r8_IS_BRKPT 0x0004 +#define orig_r8_IS_EXCPN 0x0004 +#define orig_r8_IS_IRQ1 0x0010 +#define orig_r8_IS_IRQ2 0x0020 + #endif /* __KERNEL__ */ #ifndef __ASSEMBLY__ |