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(I'm so sorry!) Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel os linux
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105/* SPDX-License-Identifier: GPL-2.0 */#ifndef _LINUX_COREDUMP_H#define _LINUX_COREDUMP_H
#include <linux/types.h>#include <linux/mm.h>#include <linux/fs.h>#include <linux/pid_types.h>#include <linux/sched/coredump.h>#include <uapi/linux/coredump.h>#include <asm/siginfo.h>
#ifdef CONFIG_COREDUMP/** * enum coredump_state - what happened while the coredump was written * @COREDUMP_STATE_STARTED: the dumper committed to writing a coredump * @COREDUMP_STATE_TRUNCATED: the dumper stopped before it had written all of it */enum coredump_state { COREDUMP_STATE_STARTED = (1U << 0), COREDUMP_STATE_TRUNCATED = (1U << 1),};
struct core_vma_metadata { unsigned long start, end; vm_flags_t flags; unsigned long dump_size; unsigned long pgoff; struct file *file;};
struct coredump_params { const kernel_siginfo_t *siginfo; struct file *file; unsigned long limit; /* COREDUMP_MEMORY_* types to dump, the task's or the server's. */ u64 memory_types; /* Snapshot of dumpable at dump start. */ enum task_dumpable dumpable; int cpu; /* COREDUMP_* options negotiated with the coredump server. */ u64 mask; /* COREDUMP_STATE_* raised while the coredump is written. */ enum coredump_state state; /* Record header scratch, NULL unless the coredump is a record stream. */ struct coredump_record_header *record_hdr; /* Bytes handed to the file, record headers included. */ loff_t written; /* Offset in the coredump, record headers excluded. */ loff_t pos; loff_t to_skip; int vma_count; size_t vma_data_size; struct core_vma_metadata *vma_meta; /* Dumping thread and its thread-group leader by pid type. */ DECLARE_PIDS(pid, PIDTYPE_TGID);};
extern unsigned int core_file_note_size_limit;
/* * These are the only things you should do on a core-file: use only these * functions to write out all the necessary info. */void dump_skip_to(struct coredump_params *cprm, unsigned long to);void dump_skip(struct coredump_params *cprm, size_t nr);bool dump_emit(struct coredump_params *cprm, const void *addr, int nr);bool dump_align(struct coredump_params *cprm, int align);bool dump_user_range(struct coredump_params *cprm, unsigned long start, unsigned long len);void vfs_coredump(const kernel_siginfo_t *siginfo);
/* * Logging for the coredump code, ratelimited. * The TGID and comm fields are added to the message. */
#define __COREDUMP_PRINTK(Level, Format, ...) \ do { \ char comm[TASK_COMM_LEN]; \ /* This will always be NUL terminated. */ \ memcpy(comm, current->comm, sizeof(comm)); \ printk_ratelimited(Level "coredump: %d(%*pE): " Format "\n", \ task_tgid_vnr(current), (int)strlen(comm), comm, ##__VA_ARGS__); \ } while (0) \
#define coredump_report(fmt, ...) __COREDUMP_PRINTK(KERN_INFO, fmt, ##__VA_ARGS__)#define coredump_report_failure(fmt, ...) __COREDUMP_PRINTK(KERN_WARNING, fmt, ##__VA_ARGS__)
#elsestatic inline void vfs_coredump(const kernel_siginfo_t *siginfo) {}
#define coredump_report(...)#define coredump_report_failure(...)
#endif
#if defined(CONFIG_COREDUMP) && defined(CONFIG_SYSCTL)extern void validate_coredump_safety(void);#elsestatic inline void validate_coredump_safety(void) {}#endif
#endif /* _LINUX_COREDUMP_H */