Contributors: 23
Author Tokens Token Proportion Commits Commit Proportion
Jann Horn 36 13.28% 3 6.25%
Linus Torvalds (pre-git) 35 12.92% 11 22.92%
Roman Kisel 34 12.55% 1 2.08%
Al Viro 30 11.07% 5 10.42%
Eric W. Biedermann 22 8.12% 6 12.50%
Alex Kelly 21 7.75% 2 4.17%
Daisuke Hatayama 19 7.01% 1 2.08%
Masami Hiramatsu 17 6.27% 2 4.17%
nixiaoming 11 4.06% 1 2.08%
David Howells 6 2.21% 2 4.17%
Denys Vlasenko 6 2.21% 1 2.08%
Linus Torvalds 5 1.85% 2 4.17%
Allen Pais 5 1.85% 1 2.08%
Luis R. Rodriguez 4 1.48% 1 2.08%
Adrian Bunk 4 1.48% 1 2.08%
Oleksandr Natalenko 3 1.11% 1 2.08%
Richard Weinberger 3 1.11% 1 2.08%
Mateusz Guzik 3 1.11% 1 2.08%
Arnd Bergmann 2 0.74% 1 2.08%
Andrew Morton 2 0.74% 1 2.08%
Kees Cook 1 0.37% 1 2.08%
Greg Kroah-Hartman 1 0.37% 1 2.08%
Oleg Nesterov 1 0.37% 1 2.08%
Total 271 48


/* 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 <asm/siginfo.h>

#ifdef CONFIG_COREDUMP
struct core_vma_metadata {
	unsigned long start, end;
	unsigned long 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;
	unsigned long mm_flags;
	int cpu;
	loff_t written;
	loff_t pos;
	loff_t to_skip;
	int vma_count;
	size_t vma_data_size;
	struct core_vma_metadata *vma_meta;
};

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.
 */
extern void dump_skip_to(struct coredump_params *cprm, unsigned long to);
extern void dump_skip(struct coredump_params *cprm, size_t nr);
extern int dump_emit(struct coredump_params *cprm, const void *addr, int nr);
extern int dump_align(struct coredump_params *cprm, int align);
int dump_user_range(struct coredump_params *cprm, unsigned long start,
		    unsigned long len);
extern void do_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];	\
	\
		get_task_comm(comm, current);	\
		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__)

#else
static inline void do_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);
#else
static inline void validate_coredump_safety(void) {}
#endif

#endif /* _LINUX_COREDUMP_H */