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vmcoreinfo: export SECTION_HAS_MEM_MAP

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The crash tool currently hardcodes SECTION_HAS_MEM_MAP, and makedumpfile
needs similar information (although still relying on
SECTION_MARKED_PRESENT, it should switch to SECTION_HAS_MEM_MAP).

Let's just export the value instead, so tools that work on vmcoreinfo
will not have to guess.

Link: https://lore.kernel.org/20260928-section_has_mem_map-v1-1-4129f6ba2838@kernel.org
Signed-off-by: David Hildenbrand (Arm) <david@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Baoquan He <baoquan.he@linux.dev>
Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
Reviewed-by: Bradley Morgan <brads@mainlining.org>
Cc: David Carlier <devnexen@gmail.com>
Cc: Dave Young <ruirui.yang@linux.dev>
Cc: Kazuhito Hagio <kazuhito.hagio@nec.com>
This commit is contained in:
David Hildenbrand (Arm) 2026-09-28 10:48:21 +02:00 committed by Andrew Morton
parent 82b1ee68b5
commit 0b4af90344
1 changed files with 1 additions and 0 deletions
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kernel/vmcore_info.c
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@ -182,6 +182,7 @@ static int __init crash_save_vmcoreinfo_init(void)
VMCOREINFO_STRUCT_SIZE(mem_section);
VMCOREINFO_OFFSET(mem_section, section_mem_map);
VMCOREINFO_NUMBER(SECTION_SIZE_BITS);
VMCOREINFO_NUMBER(SECTION_HAS_MEM_MAP);
VMCOREINFO_NUMBER(MAX_PHYSMEM_BITS);
#endif
VMCOREINFO_STRUCT_SIZE(page);