drgn/libdrgn/helpers.h

// Copyright (c) Facebook, Inc. and its affiliates.
// SPDX-License-Identifier: GPL-3.0+

/**
 * @file
 *
 * Helpers implemented in C.
 *
 * Most drgn helpers are implemented in Python. However, there are a few that we
 * need internally in libdrgn, so they are implemented in C, instead.
 */

#ifndef DRGN_HELPERS_H
#define DRGN_HELPERS_H

#include <stddef.h>
#include <stdint.h>

struct drgn_object;
struct drgn_program;

struct drgn_error *linux_helper_read_vm(struct drgn_program *prog,
					uint64_t pgtable, uint64_t virt_addr,
					void *buf, size_t count);

struct drgn_error *
linux_helper_radix_tree_lookup(struct drgn_object *res,
			       const struct drgn_object *root, uint64_t index);

struct drgn_error *linux_helper_idr_find(struct drgn_object *res,
					 const struct drgn_object *idr,
					 uint64_t id);

struct drgn_error *linux_helper_find_pid(struct drgn_object *res,
					 const struct drgn_object *ns,
					 uint64_t pid);

struct drgn_error *linux_helper_pid_task(struct drgn_object *res,
					 const struct drgn_object *pid,
					 uint64_t pid_type);

struct drgn_error *linux_helper_find_task(struct drgn_object *res,
					  const struct drgn_object *ns,
					  uint64_t pid);

#endif /* DRGN_HELPERS_H */