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// SPDX-License-Identifier: GPL-2.0-or-later
#pragma once
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include "generated/bit-length.h"
#include "maple-shared.h"
#include "vma_internal.h"
#include "../../../mm/vma.h"
/* Simple test runner. Assumes local num_[fail, tests] counters. */
#define TEST(name) \
do { \
(*num_tests)++; \
if (!test_##name()) { \
(*num_fail)++; \
fprintf(stderr, "Test " #name " FAILED\n"); \
} \
} while (0)
#define ASSERT_TRUE(_expr) \
do { \
if (!(_expr)) { \
fprintf(stderr, \
"Assert FAILED at %s:%d:%s(): %s is FALSE.\n", \
__FILE__, __LINE__, __FUNCTION__, #_expr); \
return false; \
} \
} while (0)
#define ASSERT_FALSE(_expr) ASSERT_TRUE(!(_expr))
#define ASSERT_EQ(_val1, _val2) ASSERT_TRUE((_val1) == (_val2))
#define ASSERT_NE(_val1, _val2) ASSERT_TRUE((_val1) != (_val2))
#define IS_SET(_val, _flags) ((_val & _flags) == _flags)
extern bool fail_prealloc;
/* Override vma_iter_prealloc() so we can choose to fail it. */
#define vma_iter_prealloc(vmi, vma) \
(fail_prealloc ? -ENOMEM : mas_preallocate(&(vmi)->mas, (vma), GFP_KERNEL))
#define CONFIG_DEFAULT_MMAP_MIN_ADDR 65536
extern unsigned long mmap_min_addr;
extern unsigned long dac_mmap_min_addr;
extern unsigned long stack_guard_gap;
extern const struct vm_operations_struct vma_dummy_vm_ops;
extern struct anon_vma dummy_anon_vma;
extern struct task_struct __current;
/*
* Helper function which provides a wrapper around a merge existing VMA
* operation.
*
* Declared in main.c as uses static VMA function.
*/
struct vm_area_struct *merge_existing(struct vma_merge_struct *vmg);
/*
* Helper function to allocate a VMA and link it to the tree.
*
* Declared in main.c as uses static VMA function.
*/
int attach_vma(struct mm_struct *mm, struct vm_area_struct *vma);
/* Helper function providing a dummy vm_ops->close() method.*/
static inline void dummy_close(struct vm_area_struct *)
{
}
/* Helper function to simply allocate a VMA. */
struct vm_area_struct *alloc_vma(struct mm_struct *mm,
unsigned long start, unsigned long end,
pgoff_t pgoff, vm_flags_t vm_flags);
/* Helper function to detach and free a VMA. */
void detach_free_vma(struct vm_area_struct *vma);
/* Helper function to allocate a VMA and link it to the tree. */
struct vm_area_struct *alloc_and_link_vma(struct mm_struct *mm,
unsigned long start, unsigned long end,
pgoff_t pgoff, vm_flags_t vm_flags);
/*
* Helper function to reset the dummy anon_vma to indicate it has not been
* duplicated.
*/
void reset_dummy_anon_vma(void);
/*
* Helper function to remove all VMAs and destroy the maple tree associated with
* a virtual address space. Returns a count of VMAs in the tree.
*/
int cleanup_mm(struct mm_struct *mm, struct vma_iterator *vmi);
/* Helper function to determine if VMA has had vma_start_write() performed. */
bool vma_write_started(struct vm_area_struct *vma);
void __vma_set_dummy_anon_vma(struct vm_area_struct *vma,
struct anon_vma_chain *avc, struct anon_vma *anon_vma);
/* Provide a simple dummy VMA/anon_vma dummy setup for testing. */
void vma_set_dummy_anon_vma(struct vm_area_struct *vma,
struct anon_vma_chain *avc);
/* Helper function to specify a VMA's range. */
void vma_set_range(struct vm_area_struct *vma,
unsigned long start, unsigned long end,
pgoff_t pgoff);
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