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Recognize FreeBSD core dump note for x86 segment base registers.

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This core dump note contains the value of the base address of the %fs
and %gs segments for both i386 and amd64 core dumps.  It is primarily
useful in resolving the address of TLS variables in core dumps.

binutils/ChangeLog:

	* readelf.c (get_freebsd_elfcore_note_type): Handle
	NT_FREEBSD_X86_SEGBASES.

include/ChangeLog:

	* elf/common.h (NT_FREEBSD_X86_SEGBASES): Define.
This commit is contained in:
John Baldwin 2022-04-01 13:16:46 -07:00
parent e330d4c033
commit a171378aa4
4 changed files with 12 additions and 0 deletions
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5
binutils/ChangeLog
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@ -1,3 +1,8 @@
2022-04-01 John Baldwin <jhb@FreeBSD.org>
* readelf.c (get_freebsd_elfcore_note_type): Handle
NT_FREEBSD_X86_SEGBASES.
2022-03-31 Nick Clifton <nickc@redhat.com>
* arlex.l: Accept the plus character as part of a filename.

2
binutils/readelf.c
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@ -20448,6 +20448,8 @@ get_freebsd_elfcore_note_type (Filedata * filedata, unsigned e_type)
return _("NT_PROCSTAT_AUXV (auxv data)");
case NT_FREEBSD_PTLWPINFO:
return _("NT_PTLWPINFO (ptrace_lwpinfo structure)");
case NT_FREEBSD_X86_SEGBASES:
return _("NT_X86_SEGBASES (x86 segment base registers)");
}
return get_note_type (filedata, e_type);
}

4
include/ChangeLog
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@ -1,3 +1,7 @@
2022-04-01 John Baldwin <jhb@FreeBSD.org>
* elf/common.h (NT_FREEBSD_X86_SEGBASES): Define.
2022-03-16 Simon Marchi <simon.marchi@efficios.com>
* elf/amdgpu.h: Add relocation values.

1
include/elf/common.h
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@ -738,6 +738,7 @@
#define NT_FREEBSD_PROCSTAT_PSSTRINGS 15 /* Procstat ps_strings data. */
#define NT_FREEBSD_PROCSTAT_AUXV 16 /* Procstat auxv data. */
#define NT_FREEBSD_PTLWPINFO 17 /* Thread ptrace miscellaneous info. */
#define NT_FREEBSD_X86_SEGBASES 0x200 /* x86 segment base registers */
/* Note segments for core files on NetBSD systems. Note name
must start with "NetBSD-CORE". */