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dump,restore: Dump and restore vDSO area from userspace

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There is no need to force kernel to remap vDSO area, we
can do that from the user-space as well.

Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
This commit is contained in:
Cyrill Gorcunov
2011-11-29 16:39:48 +04:00
parent f6ae59cdde
commit 4dc0736697
2 changed files with 1 additions and 13 deletions
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12
restorer.c
View File

@@ -220,18 +220,6 @@ self_len_end:
if (final_vma_entry(vma_entry))
break;
if (vma_entry_is(vma_entry, VMA_AREA_VDSO)) {
ret = sys_prctl(PR_SETUP_VDSO_AT, vma_entry->start,
0, 0, 0);
if (ret) {
write_num_n(__LINE__);
write_hex_n(vma_entry->start);
write_num_n(ret);
goto core_restore_end;
}
continue;
}
if (!vma_entry_is(vma_entry, VMA_AREA_REGULAR))
continue;

2
util.c
View File

@@ -322,7 +322,7 @@ int parse_maps(pid_t pid, struct list_head *vma_area_list, bool use_map_files)
} else if (strstr(big_buffer, "[vsyscall]")) {
vma_area->vma.status |= VMA_AREA_VSYSCALL;
} else if (strstr(big_buffer, "[vdso]")) {
vma_area->vma.status |= VMA_AREA_VDSO;
vma_area->vma.status |= VMA_AREA_REGULAR | VMA_AREA_VDSO;
} else if (strstr(big_buffer, "[heap]")) {
vma_area->vma.status |= VMA_AREA_REGULAR | VMA_AREA_HEAP;
} else {