84 lines
1.9 KiB
C
84 lines
1.9 KiB
C
#include <stdio.h>
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#include <stddef.h>
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#define container_of(ptr, type, member) ({ \
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const typeof(((type*)0)->member)* __mptr = (ptr); \
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(type*)((char*)__mptr - offsetof(type, member)); })
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# define randomized_struct_fields_start struct {
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# define randomized_struct_fields_end } __attribute__((spslr));
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# define __spslr_field_fixed __attribute__((spslr_field_fixed))
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// Minimal doubly linked list
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struct list_head {
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struct list_head *next, *prev;
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};
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static inline void INIT_LIST_HEAD(struct list_head *list)
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{
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list->next = list;
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list->prev = list;
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}
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static inline void __list_add(struct list_head *new, struct list_head *prev, struct list_head *next)
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{
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next->prev = new;
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new->next = next;
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new->prev = prev;
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prev->next = new;
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}
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static inline void list_add(struct list_head *new, struct list_head *head)
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{
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__list_add(new, head, head->next);
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}
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static inline void list_add_tail(struct list_head *new, struct list_head *head)
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{
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__list_add(new, head->prev, head);
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}
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#define list_entry(ptr, type, member) \
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container_of(ptr, type, member)
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#define list_for_each(pos, head) \
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for (pos = (head)->next; pos != (head); pos = pos->next)
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#define LIST_HEAD_SELF(name) { .next = &(name), .prev = &(name)}
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struct ArrayFun {
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int a, b, c;
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double d;
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} __attribute__((spslr));
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// A small struct like the Linux kernel's task_struct
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struct task_struct {
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int stuck0;
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randomized_struct_fields_start
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randomized_struct_fields_start
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int pid;
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const char *comm;
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struct ArrayFun arrfun[5];
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randomized_struct_fields_end
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/*
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* TODO
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* This field is used to statically initialize list heads.
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* To make the offset available at compile-time, it must be fixed.
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* The actual solution to this problem is dppins
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* -> Any static pointer into a randomized object must be patched too
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*/
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struct list_head tasks __spslr_field_fixed; // linkage for global task list
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randomized_struct_fields_end
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int stuck1, stuck2;
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};
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