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- /* SPDX-License-Identifier: GPL-2.0 */
- #ifndef _LINUX_SCHED_COREDUMP_H
- #define _LINUX_SCHED_COREDUMP_H
- #include <linux/mm_types.h>
- #define SUID_DUMP_DISABLE 0 /* No setuid dumping */
- #define SUID_DUMP_USER 1 /* Dump as user of process */
- #define SUID_DUMP_ROOT 2 /* Dump as root */
- /* mm flags */
- /* for SUID_DUMP_* above */
- #define MMF_DUMPABLE_BITS 2
- #define MMF_DUMPABLE_MASK ((1 << MMF_DUMPABLE_BITS) - 1)
- extern void set_dumpable(struct mm_struct *mm, int value);
- /*
- * This returns the actual value of the suid_dumpable flag. For things
- * that are using this for checking for privilege transitions, it must
- * test against SUID_DUMP_USER rather than treating it as a boolean
- * value.
- */
- static inline int __get_dumpable(unsigned long mm_flags)
- {
- return mm_flags & MMF_DUMPABLE_MASK;
- }
- static inline int get_dumpable(struct mm_struct *mm)
- {
- return __get_dumpable(mm->flags);
- }
- /* coredump filter bits */
- #define MMF_DUMP_ANON_PRIVATE 2
- #define MMF_DUMP_ANON_SHARED 3
- #define MMF_DUMP_MAPPED_PRIVATE 4
- #define MMF_DUMP_MAPPED_SHARED 5
- #define MMF_DUMP_ELF_HEADERS 6
- #define MMF_DUMP_HUGETLB_PRIVATE 7
- #define MMF_DUMP_HUGETLB_SHARED 8
- #define MMF_DUMP_DAX_PRIVATE 9
- #define MMF_DUMP_DAX_SHARED 10
- #define MMF_DUMP_FILTER_SHIFT MMF_DUMPABLE_BITS
- #define MMF_DUMP_FILTER_BITS 9
- #define MMF_DUMP_FILTER_MASK \
- (((1 << MMF_DUMP_FILTER_BITS) - 1) << MMF_DUMP_FILTER_SHIFT)
- #define MMF_DUMP_FILTER_DEFAULT \
- ((1 << MMF_DUMP_ANON_PRIVATE) | (1 << MMF_DUMP_ANON_SHARED) |\
- (1 << MMF_DUMP_HUGETLB_PRIVATE) | MMF_DUMP_MASK_DEFAULT_ELF)
- #ifdef CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS
- # define MMF_DUMP_MASK_DEFAULT_ELF (1 << MMF_DUMP_ELF_HEADERS)
- #else
- # define MMF_DUMP_MASK_DEFAULT_ELF 0
- #endif
- /* leave room for more dump flags */
- #define MMF_VM_MERGEABLE 16 /* KSM may merge identical pages */
- #define MMF_VM_HUGEPAGE 17 /* set when VM_HUGEPAGE is set on vma */
- /*
- * This one-shot flag is dropped due to necessity of changing exe once again
- * on NFS restore
- */
- //#define MMF_EXE_FILE_CHANGED 18 /* see prctl_set_mm_exe_file() */
- #define MMF_HAS_UPROBES 19 /* has uprobes */
- #define MMF_RECALC_UPROBES 20 /* MMF_HAS_UPROBES can be wrong */
- #define MMF_OOM_SKIP 21 /* mm is of no interest for the OOM killer */
- #define MMF_UNSTABLE 22 /* mm is unstable for copy_from_user */
- #define MMF_HUGE_ZERO_PAGE 23 /* mm has ever used the global huge zero page */
- #define MMF_DISABLE_THP 24 /* disable THP for all VMAs */
- #define MMF_OOM_VICTIM 25 /* mm is the oom victim */
- #define MMF_OOM_REAP_QUEUED 26 /* mm was queued for oom_reaper */
- #define MMF_MULTIPROCESS 27 /* mm is shared between processes */
- #define MMF_DISABLE_THP_MASK (1 << MMF_DISABLE_THP)
- #define MMF_INIT_MASK (MMF_DUMPABLE_MASK | MMF_DUMP_FILTER_MASK |\
- MMF_DISABLE_THP_MASK)
- #endif /* _LINUX_SCHED_COREDUMP_H */
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