Git-Mirrors/hardened_malloc
1
0
Fork 0
mirror of https://github.com/GrapheneOS/hardened_malloc.git synced 2024-06-28 23:52:21 +00:00
Code Issues Packages Projects Releases Wiki Activity

document padding for allocator state

Browse Source
This commit is contained in:
Daniel Micay 2018-10-15 19:08:20 -04:00
parent da8e9aa1d8
commit 67ada4d309
1 changed files with 4 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
malloc.c
View File

@ -556,11 +556,14 @@ struct region_allocator {
struct random_state rng; struct random_state rng;
}; };
struct allocator_state { struct __attribute__((aligned(PAGE_SIZE))) allocator_state {
struct size_class size_class_metadata[N_SIZE_CLASSES]; struct size_class size_class_metadata[N_SIZE_CLASSES];
struct region_allocator region_allocator; struct region_allocator region_allocator;
// padding until next page boundary for mprotect
struct region_metadata regions_a[MAX_REGION_TABLE_SIZE] __attribute__((aligned(PAGE_SIZE))); struct region_metadata regions_a[MAX_REGION_TABLE_SIZE] __attribute__((aligned(PAGE_SIZE)));
// padding until next page boundary for mprotect
struct region_metadata regions_b[MAX_REGION_TABLE_SIZE] __attribute__((aligned(PAGE_SIZE))); struct region_metadata regions_b[MAX_REGION_TABLE_SIZE] __attribute__((aligned(PAGE_SIZE)));
// padding until next page boundary for mprotect
}; };
static void regions_quarantine_deallocate_pages(void *p, size_t size, size_t guard_size) { static void regions_quarantine_deallocate_pages(void *p, size_t size, size_t guard_size) {