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| 1 | #ifndef _ASM_X86_ELFCORE_COMPAT_H |
|---|---|
| 2 | #define _ASM_X86_ELFCORE_COMPAT_H |
| 3 | |
| 4 | #include <asm/user32.h> |
| 5 | |
| 6 | /* |
| 7 | * On amd64 we have two 32bit ABIs - i386 and x32. The latter |
| 8 | * has bigger registers, so we use it for compat_elf_regset_t. |
| 9 | * The former uses i386_elf_prstatus and PRSTATUS_SIZE/SET_PR_FPVALID |
| 10 | * are used to choose the size and location of ->pr_fpvalid of |
| 11 | * the layout actually used. |
| 12 | */ |
| 13 | typedef struct user_regs_struct compat_elf_gregset_t; |
| 14 | |
| 15 | struct i386_elf_prstatus |
| 16 | { |
| 17 | struct compat_elf_prstatus_common common; |
| 18 | struct user_regs_struct32 pr_reg; |
| 19 | compat_int_t pr_fpvalid; |
| 20 | }; |
| 21 | |
| 22 | #define PRSTATUS_SIZE \ |
| 23 | (user_64bit_mode(task_pt_regs(current)) \ |
| 24 | ? sizeof(struct compat_elf_prstatus) \ |
| 25 | : sizeof(struct i386_elf_prstatus)) |
| 26 | #define SET_PR_FPVALID(S) \ |
| 27 | (*(user_64bit_mode(task_pt_regs(current)) \ |
| 28 | ? &(S)->pr_fpvalid \ |
| 29 | : &((struct i386_elf_prstatus *)(S))->pr_fpvalid) = 1) |
| 30 | |
| 31 | #endif |
| 32 |
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