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326107f054
Add a helper to get the state of a task (e.g., 'R', 'S', 'D'). This will be used to make sure that a task is not running when getting a stack trace, so implement it in libdrgn.
40 lines
1.1 KiB
C
40 lines
1.1 KiB
C
// Copyright 2019 - Omar Sandoval
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// SPDX-License-Identifier: GPL-3.0+
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/**
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* @file
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*
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* Helpers implemented in C.
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*
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* Most drgn helpers are implemented in Python. However, there are a few that we
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* need internally in libdrgn, so they are implemented in C, instead.
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*/
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#ifndef DRGN_HELPERS_H
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#define DRGN_HELPERS_H
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struct drgn_error *
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linux_helper_radix_tree_lookup(struct drgn_object *res,
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const struct drgn_object *root, uint64_t index);
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struct drgn_error *linux_helper_idr_find(struct drgn_object *res,
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const struct drgn_object *idr,
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uint64_t id);
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struct drgn_error *linux_helper_find_pid(struct drgn_object *res,
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const struct drgn_object *ns,
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uint64_t pid);
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struct drgn_error *linux_helper_pid_task(struct drgn_object *res,
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const struct drgn_object *pid,
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uint64_t pid_type);
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struct drgn_error *linux_helper_find_task(struct drgn_object *res,
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const struct drgn_object *ns,
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uint64_t pid);
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struct drgn_error *
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linux_helper_task_state_to_char(const struct drgn_object *task, char *ret);
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#endif /* DRGN_HELPERS_H */
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