7dc3136033
The current support only printed coredump notes, but most binaries also contain notes. This change adds names for four FreeBSD-specific notes and pretty-prints three of them: NT_FREEBSD_ABI_TAG: This note holds a 32-bit (decimal) integer containing the value of the __FreeBSD_version macro, which is defined in crt1.o and will hold a value such as 1300076 for a binary build on a FreeBSD 13 system. NT_FREEBSD_ARCH_TAG: A string containing the value of the build-time MACHINE_ARCH NT_FREEBSD_FEATURE_CTL: A 32-bit flag that indicates to the kernel that the binary wants certain bevahiour. Examples include setting NT_FREEBSD_FCTL_ASLR_DISABLE which tells the kernel to disable ASLR. After this change llvm-readobj also no longer decodes coredump-only FreeBSD notes in non-coredump files. I've also converted the note-freebsd.s test to use yaml2obj instead of llvm-mc. Reviewed By: jhenderson Differential Revision: https://reviews.llvm.org/D74393
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5.0 KiB
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146 lines
5.0 KiB
Plaintext
## Test that note values are interpreted correctly for FreeBSD core files.
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# RUN: yaml2obj %s -o %t.o
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# RUN: llvm-readelf --notes %t.o | FileCheck %s --check-prefix=GNU --strict-whitespace
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# RUN: llvm-readobj --notes %t.o | FileCheck %s --check-prefix=LLVM --strict-whitespace
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--- !ELF
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FileHeader:
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Class: ELFCLASS64
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Data: ELFDATA2LSB
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Type: ET_CORE
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Sections:
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- Name: .note.foo
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Type: SHT_NOTE
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Notes:
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- Name: FreeBSD
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Type: NT_FREEBSD_THRMISC
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- Name: FreeBSD
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Type: NT_FREEBSD_PROCSTAT_PROC
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- Name: FreeBSD
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Type: NT_FREEBSD_PROCSTAT_FILES
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- Name: FreeBSD
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Type: NT_FREEBSD_PROCSTAT_VMMAP
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- Name: FreeBSD
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Type: NT_FREEBSD_PROCSTAT_GROUPS
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- Name: FreeBSD
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Type: NT_FREEBSD_PROCSTAT_UMASK
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- Name: FreeBSD
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Type: NT_FREEBSD_PROCSTAT_RLIMIT
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- Name: FreeBSD
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Type: NT_FREEBSD_PROCSTAT_OSREL
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- Name: FreeBSD
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Type: NT_FREEBSD_PROCSTAT_PSSTRINGS
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- Name: FreeBSD
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Type: NT_FREEBSD_PROCSTAT_AUXV
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- Name: FreeBSD
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Type: 0x12345
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- Name: .note.bar
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Type: SHT_NOTE
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Notes:
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- Name: FreeBSD
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Desc: 'aabbccddeeff'
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Type: NT_PRPSINFO
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ProgramHeaders:
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- Type: PT_NOTE
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FirstSec: .note.foo
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LastSec: .note.foo
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- Type: PT_NOTE
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FirstSec: .note.bar
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LastSec: .note.bar
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# GNU: Displaying notes found at file offset 0x000000b0 with length 0x000000dc:
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# GNU-NEXT: Owner Data size Description
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# GNU-NEXT: FreeBSD 0x00000000 NT_THRMISC (thrmisc structure)
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# GNU-NEXT: FreeBSD 0x00000000 NT_PROCSTAT_PROC (proc data)
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# GNU-NEXT: FreeBSD 0x00000000 NT_PROCSTAT_FILES (files data)
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# GNU-NEXT: FreeBSD 0x00000000 NT_PROCSTAT_VMMAP (vmmap data)
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# GNU-NEXT: FreeBSD 0x00000000 NT_PROCSTAT_GROUPS (groups data)
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# GNU-NEXT: FreeBSD 0x00000000 NT_PROCSTAT_UMASK (umask data)
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# GNU-NEXT: FreeBSD 0x00000000 NT_PROCSTAT_RLIMIT (rlimit data)
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# GNU-NEXT: FreeBSD 0x00000000 NT_PROCSTAT_OSREL (osreldate data)
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# GNU-NEXT: FreeBSD 0x00000000 NT_PROCSTAT_PSSTRINGS (ps_strings data)
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# GNU-NEXT: FreeBSD 0x00000000 NT_PROCSTAT_AUXV (auxv data)
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# GNU-NEXT: FreeBSD 0x00000000 Unknown note type: (0x00012345)
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# GNU-EMPTY:
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# GNU-NEXT: Displaying notes found at file offset 0x0000018c with length 0x0000001c:
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# GNU-NEXT: Owner Data size Description
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# GNU-NEXT: FreeBSD 0x00000006 NT_PRPSINFO (prpsinfo structure)
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# GNU-NEXT: description data: aa bb cc dd ee ff
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# GNU-EMPTY:
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# LLVM: Notes [
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# LLVM-NEXT: NoteSection {
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# LLVM-NEXT: Name: <?>
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# LLVM-NEXT: Offset: 0xB0
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# LLVM-NEXT: Size: 0xDC
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# LLVM-NEXT: Note {
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# LLVM-NEXT: Owner: FreeBSD
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# LLVM-NEXT: Data size: 0x0
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# LLVM-NEXT: Type: NT_THRMISC (thrmisc structure)
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# LLVM-NEXT: }
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# LLVM-NEXT: Note {
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# LLVM-NEXT: Owner: FreeBSD
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# LLVM-NEXT: Data size: 0x0
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# LLVM-NEXT: Type: NT_PROCSTAT_PROC (proc data)
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# LLVM-NEXT: }
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# LLVM-NEXT: Note {
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# LLVM-NEXT: Owner: FreeBSD
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# LLVM-NEXT: Data size: 0x0
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# LLVM-NEXT: Type: NT_PROCSTAT_FILES (files data)
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# LLVM-NEXT: }
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# LLVM-NEXT: Note {
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# LLVM-NEXT: Owner: FreeBSD
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# LLVM-NEXT: Data size: 0x0
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# LLVM-NEXT: Type: NT_PROCSTAT_VMMAP (vmmap data)
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# LLVM-NEXT: }
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# LLVM-NEXT: Note {
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# LLVM-NEXT: Owner: FreeBSD
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# LLVM-NEXT: Data size: 0x0
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# LLVM-NEXT: Type: NT_PROCSTAT_GROUPS (groups data)
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# LLVM-NEXT: }
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# LLVM-NEXT: Note {
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# LLVM-NEXT: Owner: FreeBSD
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# LLVM-NEXT: Data size: 0x0
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# LLVM-NEXT: Type: NT_PROCSTAT_UMASK (umask data)
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# LLVM-NEXT: }
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# LLVM-NEXT: Note {
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# LLVM-NEXT: Owner: FreeBSD
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# LLVM-NEXT: Data size: 0x0
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# LLVM-NEXT: Type: NT_PROCSTAT_RLIMIT (rlimit data)
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# LLVM-NEXT: }
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# LLVM-NEXT: Note {
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# LLVM-NEXT: Owner: FreeBSD
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# LLVM-NEXT: Data size: 0x0
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# LLVM-NEXT: Type: NT_PROCSTAT_OSREL (osreldate data)
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# LLVM-NEXT: }
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# LLVM-NEXT: Note {
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# LLVM-NEXT: Owner: FreeBSD
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# LLVM-NEXT: Data size: 0x0
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# LLVM-NEXT: Type: NT_PROCSTAT_PSSTRINGS (ps_strings data)
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# LLVM-NEXT: }
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# LLVM-NEXT: Note {
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# LLVM-NEXT: Owner: FreeBSD
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# LLVM-NEXT: Data size: 0x0
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# LLVM-NEXT: Type: NT_PROCSTAT_AUXV (auxv data)
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# LLVM-NEXT: }
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# LLVM-NEXT: Note {
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# LLVM-NEXT: Owner: FreeBSD
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# LLVM-NEXT: Data size: 0x0
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# LLVM-NEXT: Type: Unknown (0x00012345)
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# LLVM-NEXT: }
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# LLVM-NEXT: }
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# LLVM-NEXT: NoteSection {
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# LLVM-NEXT: Name: <?>
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# LLVM-NEXT: Offset: 0x18C
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# LLVM-NEXT: Size: 0x1C
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# LLVM-NEXT: Note {
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# LLVM-NEXT: Owner: FreeBSD
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# LLVM-NEXT: Data size: 0x6
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# LLVM-NEXT: Type: NT_PRPSINFO (prpsinfo structure)
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# LLVM-NEXT: Description data (
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# LLVM-NEXT: 0000: AABBCCDD EEFF |......|
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# LLVM-NEXT: )
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# LLVM-NEXT: }
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# LLVM-NEXT: }
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# LLVM-NEXT: ]
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