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| author | Omar Sandoval <osandov@fb.com> | 2018-08-21 21:55:20 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-08-22 10:52:46 -0700 |
| commit | 23c85094fe1895caefdd19ef624ee687ec5f4507 (patch) | |
| tree | 13a0d0b93980e585384310a021b3772dc37b9e54 /include/linux | |
| parent | eff4345e7fba0aac8665f00e8599b36946d9aaec (diff) | |
| download | linux-23c85094fe1895caefdd19ef624ee687ec5f4507.tar.gz linux-23c85094fe1895caefdd19ef624ee687ec5f4507.tar.bz2 linux-23c85094fe1895caefdd19ef624ee687ec5f4507.zip | |
proc/kcore: add vmcoreinfo note to /proc/kcore
The vmcoreinfo information is useful for runtime debugging tools, not just
for crash dumps. A lot of this information can be determined by other
means, but this is much more convenient, and it only adds a page at most
to the file.
Link: http://lkml.kernel.org/r/fddbcd08eed76344863303878b12de1c1e2a04b6.1531953780.git.osandov@fb.com
Signed-off-by: Omar Sandoval <osandov@fb.com>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Bhupesh Sharma <bhsharma@redhat.com>
Cc: Eric Biederman <ebiederm@xmission.com>
Cc: James Morse <james.morse@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/crash_core.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/crash_core.h b/include/linux/crash_core.h index b511f6d24b42..525510a9f965 100644 --- a/include/linux/crash_core.h +++ b/include/linux/crash_core.h @@ -60,6 +60,8 @@ phys_addr_t paddr_vmcoreinfo_note(void); #define VMCOREINFO_CONFIG(name) \ vmcoreinfo_append_str("CONFIG_%s=y\n", #name) +extern unsigned char *vmcoreinfo_data; +extern size_t vmcoreinfo_size; extern u32 *vmcoreinfo_note; Elf_Word *append_elf_note(Elf_Word *buf, char *name, unsigned int type, |