diff options
Diffstat (limited to 'arch/x86/include/asm/extable_fixup_types.h')
| -rw-r--r-- | arch/x86/include/asm/extable_fixup_types.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/arch/x86/include/asm/extable_fixup_types.h b/arch/x86/include/asm/extable_fixup_types.h index 4d709a2768bb..944f8329022a 100644 --- a/arch/x86/include/asm/extable_fixup_types.h +++ b/arch/x86/include/asm/extable_fixup_types.h @@ -2,6 +2,29 @@ #ifndef _ASM_X86_EXTABLE_FIXUP_TYPES_H #define _ASM_X86_EXTABLE_FIXUP_TYPES_H +/* + * Our IMM is signed, as such it must live at the top end of the word. Also, + * since C99 hex constants are of ambigious type, force cast the mask to 'int' + * so that FIELD_GET() will DTRT and sign extend the value when it extracts it. + */ +#define EX_DATA_TYPE_MASK ((int)0x000000FF) +#define EX_DATA_REG_MASK ((int)0x00000F00) +#define EX_DATA_FLAG_MASK ((int)0x0000F000) +#define EX_DATA_IMM_MASK ((int)0xFFFF0000) + +#define EX_DATA_REG_SHIFT 8 +#define EX_DATA_FLAG_SHIFT 12 +#define EX_DATA_IMM_SHIFT 16 + +#define EX_DATA_FLAG(flag) ((flag) << EX_DATA_FLAG_SHIFT) +#define EX_DATA_IMM(imm) ((imm) << EX_DATA_IMM_SHIFT) + +/* flags */ +#define EX_FLAG_CLEAR_AX EX_DATA_FLAG(1) +#define EX_FLAG_CLEAR_DX EX_DATA_FLAG(2) +#define EX_FLAG_CLEAR_AX_DX EX_DATA_FLAG(3) + +/* types */ #define EX_TYPE_NONE 0 #define EX_TYPE_DEFAULT 1 #define EX_TYPE_FAULT 2 @@ -20,5 +43,6 @@ #define EX_TYPE_FAULT_MCE_SAFE 13 #define EX_TYPE_POP_ZERO 14 +#define EX_TYPE_IMM_REG 15 /* reg := (long)imm */ #endif |