mirror of
https://codeberg.org/ziglang/zig.git
synced 2026-06-26 18:44:28 -04:00
Alex Rønne Petersen
99 lines
2.6 KiB
C
Vendored
99 lines
2.6 KiB
C
Vendored
/*
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*
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* Copyright (c) 2015 Mark Johnston <markj@FreeBSD.org>
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* Copyright (c) 2025 Kyle Evans <kevans@FreeBSD.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*
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*/
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#ifndef _SYS_UCOREDUMP_H_
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#define _SYS_UCOREDUMP_H_
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#ifdef _KERNEL
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#include <sys/_uio.h>
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#include <sys/blockcount.h>
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#include <sys/queue.h>
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/* Coredump output parameters. */
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struct coredump_params;
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struct coredump_writer;
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struct thread;
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struct ucred;
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typedef int coredump_init_fn(const struct coredump_writer *,
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const struct coredump_params *);
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typedef int coredump_write_fn(const struct coredump_writer *, const void *, size_t,
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off_t, enum uio_seg, struct ucred *, size_t *, struct thread *);
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typedef int coredump_extend_fn(const struct coredump_writer *, off_t,
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struct ucred *);
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struct coredump_vnode_ctx {
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struct vnode *vp;
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struct ucred *fcred;
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};
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coredump_write_fn core_vn_write;
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coredump_extend_fn core_vn_extend;
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struct coredump_writer {
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void *ctx;
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coredump_init_fn *init_fn;
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coredump_write_fn *write_fn;
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coredump_extend_fn *extend_fn;
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};
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struct coredump_params {
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off_t offset;
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struct ucred *active_cred;
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struct thread *td;
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const struct coredump_writer *cdw;
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struct compressor *comp;
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};
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#define CORE_BUF_SIZE (16 * 1024)
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int core_write(struct coredump_params *, const void *, size_t, off_t,
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enum uio_seg, size_t *);
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int core_output(char *, size_t, off_t, struct coredump_params *, void *);
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int sbuf_drain_core_output(void *, const char *, int);
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extern int coredump_pack_fileinfo;
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extern int coredump_pack_vmmapinfo;
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extern int compress_user_cores;
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extern int compress_user_cores_level;
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typedef int coredumper_probe_fn(struct thread *);
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/*
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* Some arbitrary values for coredumper probes to return. The highest priority
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* we can find wins. It's somewhat expected that a coredumper may want to bid
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* differently based on the process in question. Note that probe functions will
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* be called with the proc lock held, so they must not sleep.
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*/
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#define COREDUMPER_NOMATCH (-1) /* Decline to touch it */
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#define COREDUMPER_GENERIC (0) /* I handle coredumps */
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#define COREDUMPER_SPECIAL (50) /* Special handler */
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#define COREDUMPER_HIGH_PRIORITY (100) /* High-priority handler */
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/*
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* The handle functions will be called with the proc lock held, and should
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* return with the proc lock dropped.
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*/
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typedef int coredumper_handle_fn(struct thread *, off_t);
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struct coredumper {
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SLIST_ENTRY(coredumper) cd_entry;
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const char *cd_name;
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coredumper_probe_fn *cd_probe;
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coredumper_handle_fn *cd_handle;
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blockcount_t cd_refcount;
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};
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void coredumper_register(struct coredumper *);
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void coredumper_unregister(struct coredumper *);
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#endif /* _KERNEL */
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#endif /* _SYS_UCOREDUMP_H_ */ |