| 56 | int init_ret_flag = RT_EOK; |
| 57 | |
| 58 | static int __setup_additional_pages(enum vdso_abi abi, struct rt_lwp *lwp) |
| 59 | { |
| 60 | RT_ASSERT(lwp != RT_NULL); |
| 61 | |
| 62 | int ret; |
| 63 | void *vdso_base = RT_NULL; |
| 64 | unsigned long vdso_data_len, vdso_text_len; |
| 65 | |
| 66 | vdso_data_len = VVAR_NR_PAGES * ARCH_PAGE_SIZE; |
| 67 | vdso_text_len = vdso_info[abi].vdso_pages << ARCH_PAGE_SHIFT; |
| 68 | |
| 69 | vdso_base = lwp_map_user_phy(lwp, RT_NULL, rt_kmem_v2p((void *)vdso_data), vdso_data_len, 0); |
| 70 | if (vdso_base != RT_NULL) |
| 71 | { |
| 72 | ret = RT_EOK; |
| 73 | } |
| 74 | else |
| 75 | { |
| 76 | ret = RT_ERROR; |
| 77 | } |
| 78 | |
| 79 | vdso_base += vdso_data_len; |
| 80 | vdso_base = lwp_map_user_phy(lwp, vdso_base, rt_kmem_v2p((void *)vdso_info[abi].vdso_code_start), vdso_text_len, 0); |
| 81 | |
| 82 | lwp->vdso_vbase = vdso_base; |
| 83 | return ret; |
| 84 | } |
| 85 | |
| 86 | int arch_setup_additional_pages(struct rt_lwp *lwp) |
| 87 | { |
no test coverage detected