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zdump: Extract dfi_mem_chunk module

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To make dfi_mem_chunk API unit testable.

Signed-off-by: Alexander Egorenkov <egorenar@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
This commit is contained in:
Alexander Egorenkov
2021-10-08 08:13:38 +02:00
committed by Jan Höppner
parent 969a439aaa
commit 2df532c1fa
5 changed files with 611 additions and 549 deletions
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zdump/dfi_mem_chunk.h
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/*
* Copyright IBM Corp. 2001, 2018
*
* s390-tools is free software; you can redistribute it and/or modify
* it under the terms of the MIT license. See LICENSE for details.
*/
#ifndef DFI_MEM_CHUNK_H
#define DFI_MEM_CHUNK_H
#include <stdbool.h>
#include "lib/zt_common.h"
#include "lib/util_list.h"
/*
* Mem chunk functions and definitions
*/
struct dfi_mem_chunk;
typedef void (*dfi_mem_chunk_read_fn)(struct dfi_mem_chunk *mem_chunk,
u64 off, void *buf, u64 cnt);
typedef void (*dfi_mem_chunk_free_fn)(void *data);
struct dfi_mem_chunk {
struct util_list_node list; /* List */
u64 start; /* Start address in memory */
u64 end; /* End address in memory */
u64 size; /* Size of chunk in dump file */
dfi_mem_chunk_read_fn read_fn; /* Chunk read callback */
dfi_mem_chunk_free_fn free_fn; /* Free data callback */
void *data; /* Data for callback */
u32 volnr; /* Volume id where chunk resides */
};
extern void dfi_mem_chunk_read_zero(struct dfi_mem_chunk *UNUSED(mem_chunk),
u64 UNUSED(off), void *buf, u64 cnt);
extern void dfi_mem_chunk_add_vol(u64 start, u64 size, void *data,
dfi_mem_chunk_read_fn read_fn,
dfi_mem_chunk_free_fn free_fn,
u32 volnr);
extern void dfi_mem_chunk_add(u64 start, u64 size, void *data,
dfi_mem_chunk_read_fn read_fn,
dfi_mem_chunk_free_fn free_fn);
extern void dfi_mem_chunk_virt_add(u64 start, u64 size, void *data,
dfi_mem_chunk_read_fn read_fn,
dfi_mem_chunk_free_fn free_fn);
extern u64 dfi_mem_range(void);
extern int dfi_mem_range_valid(u64 addr, u64 len);
extern unsigned int dfi_mem_chunk_cnt(void);
extern struct dfi_mem_chunk *dfi_mem_chunk_first(void);
extern struct dfi_mem_chunk *dfi_mem_chunk_last(void);
extern struct dfi_mem_chunk *dfi_mem_chunk_next(struct dfi_mem_chunk *chunk);
extern struct dfi_mem_chunk *dfi_mem_chunk_prev(struct dfi_mem_chunk *chunk);
extern struct dfi_mem_chunk *dfi_mem_chunk_find(u64 addr);
extern struct util_list *dfi_mem_chunk_list(void);
#define dfi_mem_chunk_iterate(mem_chunk) \
util_list_iterate(dfi_mem_chunk_list(), mem_chunk)
/*
* DFI external functions
*/
extern void dfi_mem_read(u64 addr, void *buf, size_t cnt);
extern int dfi_mem_read_rc(u64 addr, void *buf, size_t cnt);
extern void dfi_mem_phys_read(u64 addr, void *buf, size_t cnt);
void dfi_mem_map_print(bool verbose);
void dfi_mem_unmap(u64 start, u64 size);
void dfi_mem_map(u64 start, u64 size, u64 start_phys);
int dfi_mem_chunk_init(void);
void dfi_mem_chunk_deinit(void);
#endif /* DFI_MEM_CHUNK_H */