Improve objcopy's note mergeing capabilities.
* objcopy.c (struct merged_note_section): New structure. Used to chain together details of mergeable note sections. (is_merged_note_section): Rename to is_megreable_note_section and return true for note sections that use GNU_BUILD_ATTRS_SECTION_NAME as a prefix. (num_bytes): Delete (objcoopy_internal_note): Add padded_namesz field. (DEBUG_MERGE): New macro. Set to non-zero to enable debugging of the note merging code. (gap_exists): Rename to overlaps_or_adjoins and return TRUE for overlapping notes or adjoining notes. (contained_by, is_deleted_note, is_version_note) (compare_gnu_build_notes, sort_gnu_build_notes): New functions. (merge_gnu_build_notes): Rework. Sort notes into a mergeable order first. Merge them. Then sort them into an ascending address order before writing them out. (copy_object): Handle more than one mergeable note section. * testsuite/binutils-all/note-2-32.d: Update for new merging behaviour. * testsuite/binutils-all/note-2-32.s: Likewise. * testsuite/binutils-all/note-2-64.d: Likewise. * testsuite/binutils-all/note-2-64.s: Likewise. * testsuite/binutils-all/note-3-32.d: Likewise. * testsuite/binutils-all/note-3-32.s: Likewise. * testsuite/binutils-all/note-3-64.d: Likewise. * testsuite/binutils-all/note-3-64.s: Likewise. * testsuite/binutils-all/note-4-32.d: Likewise. * testsuite/binutils-all/note-4-32.s: Likewise. * testsuite/binutils-all/note-4-64.d: Likewise. * testsuite/binutils-all/note-4-64.s: Likewise. * testsuite/binutils-all/note-6-32.s: New test source file. * testsuite/binutils-all/note-6-64.s: New test source file. * testsuite/binutils-all/note-6-32.d: New test driver file. * testsuite/binutils-all/note-6-64.d: New test driver file. * testsuite/binutils-all/objcopy.exp: Run the new test.
This commit is contained in:
Nick Clifton
parent
27cee81d06
commit
5c49f2cd78
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@ -1,3 +1,41 @@
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2019-10-25 Nick Clifton <nickc@redhat.com>
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* objcopy.c (struct merged_note_section): New structure. Used to
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chain together details of mergeable note sections.
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(is_merged_note_section): Rename to is_megreable_note_section and
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return true for note sections that use GNU_BUILD_ATTRS_SECTION_NAME
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as a prefix.
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(num_bytes): Delete
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(objcoopy_internal_note): Add padded_namesz field.
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(DEBUG_MERGE): New macro. Set to non-zero to enable debugging of
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the note merging code.
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(gap_exists): Rename to overlaps_or_adjoins and return TRUE for
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overlapping notes or adjoining notes.
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(contained_by, is_deleted_note, is_version_note)
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(compare_gnu_build_notes, sort_gnu_build_notes): New functions.
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(merge_gnu_build_notes): Rework. Sort notes into a mergeable
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order first. Merge them. Then sort them into an ascending
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address order before writing them out.
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(copy_object): Handle more than one mergeable note section.
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* testsuite/binutils-all/note-2-32.d: Update for new merging
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behaviour.
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* testsuite/binutils-all/note-2-32.s: Likewise.
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* testsuite/binutils-all/note-2-64.d: Likewise.
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* testsuite/binutils-all/note-2-64.s: Likewise.
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* testsuite/binutils-all/note-3-32.d: Likewise.
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* testsuite/binutils-all/note-3-32.s: Likewise.
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* testsuite/binutils-all/note-3-64.d: Likewise.
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* testsuite/binutils-all/note-3-64.s: Likewise.
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* testsuite/binutils-all/note-4-32.d: Likewise.
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* testsuite/binutils-all/note-4-32.s: Likewise.
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* testsuite/binutils-all/note-4-64.d: Likewise.
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* testsuite/binutils-all/note-4-64.s: Likewise.
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* testsuite/binutils-all/note-6-32.s: New test source file.
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* testsuite/binutils-all/note-6-64.s: New test source file.
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* testsuite/binutils-all/note-6-32.d: New test driver file.
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* testsuite/binutils-all/note-6-64.d: New test driver file.
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* testsuite/binutils-all/objcopy.exp: Run the new test.
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2019-10-25 Alan Modra <amodra@gmail.com>
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* readelf.c (process_program_headers): Check PT_PHDR p_offset
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@ -97,8 +97,14 @@ static int deterministic = -1; /* Enable deterministic archives. */
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static int status = 0; /* Exit status. */
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static bfd_boolean merge_notes = FALSE; /* Merge note sections. */
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static bfd_byte * merged_notes = NULL; /* Contents on note section undergoing a merge. */
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static bfd_size_type merged_size = 0; /* New, smaller size of the merged note section. */
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typedef struct merged_note_section
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{
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asection * sec; /* The section that is being merged. */
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bfd_byte * contents;/* New contents of the section. */
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bfd_size_type size; /* New size of the section. */
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struct merged_note_section * next; /* Link to next merged note section. */
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} merged_note_section;
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enum strip_action
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{
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@ -1283,7 +1289,7 @@ is_update_section (bfd *abfd ATTRIBUTE_UNUSED, asection *sec)
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}
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static bfd_boolean
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is_merged_note_section (bfd * abfd, asection * sec)
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is_mergeable_note_section (bfd * abfd, asection * sec)
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{
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if (merge_notes
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&& bfd_get_flavour (abfd) == bfd_target_elf_flavour
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@ -1292,9 +1298,9 @@ is_merged_note_section (bfd * abfd, asection * sec)
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We should add support for more note types. */
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&& ((elf_section_data (sec)->this_hdr.sh_flags & SHF_GNU_BUILD_NOTE) != 0
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/* Old versions of GAS (prior to 2.27) could not set the section
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flags to OS-specific values, so we also accept sections with the
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expected name. */
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|| (strcmp (sec->name, GNU_BUILD_ATTRS_SECTION_NAME) == 0)))
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flags to OS-specific values, so we also accept sections that
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start with the expected name. */
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|| (CONST_STRNEQ (sec->name, GNU_BUILD_ATTRS_SECTION_NAME))))
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return TRUE;
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return FALSE;
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@ -1917,56 +1923,81 @@ copy_unknown_object (bfd *ibfd, bfd *obfd)
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return TRUE;
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}
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/* Returns the number of bytes needed to store VAL. */
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static inline unsigned int
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num_bytes (unsigned long val)
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{
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unsigned int count = 0;
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/* FIXME: There must be a faster way to do this. */
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while (val)
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{
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count ++;
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val >>= 8;
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}
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return count;
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}
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typedef struct objcopy_internal_note
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{
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Elf_Internal_Note note;
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unsigned long padded_namesz;
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bfd_vma start;
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bfd_vma end;
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bfd_boolean modified;
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} objcopy_internal_note;
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/* Returns TRUE if a gap does, or could, exist between the address range
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covered by PNOTE1 and PNOTE2. */
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#define DEBUG_MERGE 0
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#if DEBUG_MERGE
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#define merge_debug(format, ...) fprintf (stderr, format, ## __VA_ARGS__)
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#else
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#define merge_debug(format, ...)
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#endif
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/* Returns TRUE iff PNOTE1 overlaps or adjoins PNOTE2. */
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static bfd_boolean
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gap_exists (objcopy_internal_note * pnote1,
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objcopy_internal_note * pnote2)
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overlaps_or_adjoins (objcopy_internal_note * pnote1,
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objcopy_internal_note * pnote2)
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{
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/* Without range end notes, we assume that a gap might exist. */
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if (pnote1->end == 0 || pnote2->end == 0)
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if (pnote1->end < pnote2->start)
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/* FIXME: Alignment of 16 bytes taken from x86_64 binaries.
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Really we should extract the alignment of the section
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covered by the notes. */
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return BFD_ALIGN (pnote1->end, 16) < pnote2->start;
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if (pnote2->end < pnote2->start)
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return BFD_ALIGN (pnote2->end, 16) < pnote1->start;
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if (pnote1->end < pnote2->end)
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return TRUE;
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/* FIXME: Alignment of 16 bytes taken from x86_64 binaries.
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Really we should extract the alignment of the section covered by the notes. */
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return BFD_ALIGN (pnote1->end, 16) < pnote2->start;
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if (pnote2->end < pnote1->end)
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return TRUE;
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return FALSE;
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}
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/* Returns TRUE iff NEEDLE is fully contained by HAYSTACK. */
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static bfd_boolean
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contained_by (objcopy_internal_note * needle,
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objcopy_internal_note * haystack)
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{
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return needle->start >= haystack->start && needle->end <= haystack->end;
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}
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static bfd_boolean
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is_open_note (objcopy_internal_note * pnote)
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{
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return (pnote->note.type == NT_GNU_BUILD_ATTRIBUTE_OPEN);
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return pnote->note.type == NT_GNU_BUILD_ATTRIBUTE_OPEN;
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}
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static bfd_boolean
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is_func_note (objcopy_internal_note * pnote)
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{
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return (pnote->note.type == NT_GNU_BUILD_ATTRIBUTE_FUNC);
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return pnote->note.type == NT_GNU_BUILD_ATTRIBUTE_FUNC;
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}
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static bfd_boolean
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is_deleted_note (objcopy_internal_note * pnote)
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{
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return pnote->note.type == 0;
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}
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static bfd_boolean
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is_version_note (objcopy_internal_note * pnote)
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{
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return (pnote->note.namesz > 4
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&& pnote->note.namedata[0] == 'G'
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&& pnote->note.namedata[1] == 'A'
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&& pnote->note.namedata[2] == '$'
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&& pnote->note.namedata[3] == GNU_BUILD_ATTRIBUTE_VERSION);
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}
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static bfd_boolean
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@ -1979,11 +2010,97 @@ is_64bit (bfd * abfd)
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return elf_elfheader (abfd)->e_ident[EI_CLASS] == ELFCLASS64;
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}
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/* This sorting function is used to get the notes into an order
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that makes merging easy. */
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static int
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compare_gnu_build_notes (const void * data1, const void * data2)
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{
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objcopy_internal_note * pnote1 = (objcopy_internal_note *) data1;
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objcopy_internal_note * pnote2 = (objcopy_internal_note *) data2;
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/* Sort notes based upon the attribute they record. */
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int cmp = memcmp (pnote1->note.namedata + 3,
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pnote2->note.namedata + 3,
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pnote1->note.namesz < pnote2->note.namesz ?
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pnote1->note.namesz - 3 : pnote2->note.namesz - 3);
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if (cmp)
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return cmp;
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if (pnote1->end < pnote2->start)
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return -1;
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if (pnote1->start > pnote2->end)
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return 1;
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/* Overlaps - we should merge the two ranges. */
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if (pnote1->start < pnote2->start)
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return -1;
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if (pnote1->end > pnote2->end)
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return 1;
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/* Put OPEN notes before function notes. */
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if (is_open_note (pnote1) && ! is_open_note (pnote2))
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return -1;
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if (! is_open_note (pnote1) && is_open_note (pnote2))
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return 1;
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return 0;
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}
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/* This sorting function is used to get the notes into an order
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that makes eliminating address ranges easier. */
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static int
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sort_gnu_build_notes (const void * data1, const void * data2)
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{
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objcopy_internal_note * pnote1 = (objcopy_internal_note *) data1;
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objcopy_internal_note * pnote2 = (objcopy_internal_note *) data2;
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if (pnote1->note.type != pnote2->note.type)
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{
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/* Move deleted notes to the end. */
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if (is_deleted_note (pnote1)) /* 1: OFD 2: OFD */
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return 1;
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/* Move OPEN notes to the start. */
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if (is_open_note (pnote1)) /* 1: OF 2: OFD */
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return -1;
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if (is_deleted_note (pnote2)) /* 1: F 2: O D */
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return 1;
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return 1; /* 1: F 2: O */
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}
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/* Sort by starting address. */
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if (pnote1->start < pnote2->start)
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return -1;
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if (pnote1->start > pnote2->start)
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return 1;
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/* Then by end address (bigger range first). */
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if (pnote1->end > pnote2->end)
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return -1;
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if (pnote1->end < pnote2->end)
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return 1;
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/* Then by attribute type. */
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if (pnote1->note.namesz > 4
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&& pnote2->note.namesz > 4
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&& pnote1->note.namedata[3] != pnote2->note.namedata[3])
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return pnote1->note.namedata[3] - pnote2->note.namedata[3];
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return 0;
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}
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/* Merge the notes on SEC, removing redundant entries.
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Returns the new, smaller size of the section upon success. */
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static bfd_size_type
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merge_gnu_build_notes (bfd * abfd, asection * sec, bfd_size_type size, bfd_byte * contents)
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merge_gnu_build_notes (bfd * abfd,
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asection * sec,
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bfd_size_type size,
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bfd_byte * contents)
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{
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objcopy_internal_note * pnotes_end;
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objcopy_internal_note * pnotes = NULL;
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@ -1992,11 +2109,8 @@ merge_gnu_build_notes (bfd * abfd, asection * sec, bfd_size_type size, bfd_byte
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unsigned version_1_seen = 0;
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unsigned version_2_seen = 0;
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unsigned version_3_seen = 0;
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bfd_boolean duplicate_found = FALSE;
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const char * err = NULL;
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bfd_byte * in = contents;
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int attribute_type_byte;
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int val_start;
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unsigned long previous_func_start = 0;
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unsigned long previous_open_start = 0;
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unsigned long previous_func_end = 0;
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@ -2015,20 +2129,33 @@ merge_gnu_build_notes (bfd * abfd, asection * sec, bfd_size_type size, bfd_byte
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relcount = bfd_canonicalize_reloc (abfd, sec, relpp, isympp);
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free (relpp);
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if (relcount != 0)
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goto done;
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{
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if (! is_strip)
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non_fatal (_("%s[%s]: Cannot merge - there are relocations against this section"),
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bfd_get_filename (abfd), bfd_section_name (sec));
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goto done;
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}
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}
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/* Make a copy of the notes and convert to our internal format.
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Minimum size of a note is 12 bytes. Also locate the version
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notes and check them. */
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pnote = pnotes = (objcopy_internal_note *) xcalloc ((size / 12), sizeof (* pnote));
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pnote = pnotes = (objcopy_internal_note *)
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xcalloc ((size / 12), sizeof (* pnote));
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while (remain >= 12)
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{
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bfd_vma start, end;
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pnote->note.namesz = (bfd_get_32 (abfd, in ) + 3) & ~3;
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pnote->note.descsz = (bfd_get_32 (abfd, in + 4) + 3) & ~3;
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pnote->note.type = bfd_get_32 (abfd, in + 8);
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pnote->note.namesz = bfd_get_32 (abfd, in);
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pnote->note.descsz = bfd_get_32 (abfd, in + 4);
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pnote->note.type = bfd_get_32 (abfd, in + 8);
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pnote->padded_namesz = (pnote->note.namesz + 3) & ~3;
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if (((pnote->note.descsz + 3) & ~3) != pnote->note.descsz)
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{
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err = _("corrupt GNU build attribute note: description size not a factor of 4");
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goto done;
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}
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if (pnote->note.type != NT_GNU_BUILD_ATTRIBUTE_OPEN
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&& pnote->note.type != NT_GNU_BUILD_ATTRIBUTE_FUNC)
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@ -2037,7 +2164,7 @@ merge_gnu_build_notes (bfd * abfd, asection * sec, bfd_size_type size, bfd_byte
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goto done;
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}
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if (pnote->note.namesz + pnote->note.descsz + 12 > remain)
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if (pnote->padded_namesz + pnote->note.descsz + 12 > remain)
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{
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err = _("corrupt GNU build attribute note: note too big");
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goto done;
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|
@ -2050,21 +2177,17 @@ merge_gnu_build_notes (bfd * abfd, asection * sec, bfd_size_type size, bfd_byte
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}
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pnote->note.namedata = (char *)(in + 12);
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pnote->note.descdata = (char *)(in + 12 + pnote->note.namesz);
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pnote->note.descdata = (char *)(in + 12 + pnote->padded_namesz);
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||||
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||||
remain -= 12 + pnote->note.namesz + pnote->note.descsz;
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in += 12 + pnote->note.namesz + pnote->note.descsz;
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remain -= 12 + pnote->padded_namesz + pnote->note.descsz;
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in += 12 + pnote->padded_namesz + pnote->note.descsz;
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||||
|
||||
if (pnote->note.namesz > 2
|
||||
&& pnote->note.namedata[0] == '$'
|
||||
&& pnote->note.namedata[1] == GNU_BUILD_ATTRIBUTE_VERSION
|
||||
&& pnote->note.namedata[2] == '1')
|
||||
++ version_1_seen;
|
||||
else if (pnote->note.namesz > 4
|
||||
&& pnote->note.namedata[0] == 'G'
|
||||
&& pnote->note.namedata[1] == 'A'
|
||||
&& pnote->note.namedata[2] == '$'
|
||||
&& pnote->note.namedata[3] == GNU_BUILD_ATTRIBUTE_VERSION)
|
||||
else if (is_version_note (pnote))
|
||||
{
|
||||
if (pnote->note.namedata[4] == '2')
|
||||
++ version_2_seen;
|
||||
|
|
@ -2170,11 +2293,18 @@ merge_gnu_build_notes (bfd * abfd, asection * sec, bfd_size_type size, bfd_byte
|
|||
|
||||
if (version_1_seen == 0 && version_2_seen == 0 && version_3_seen == 0)
|
||||
{
|
||||
#if 0
|
||||
err = _("bad GNU build attribute notes: no known versions detected");
|
||||
goto done;
|
||||
#else
|
||||
/* This happens with glibc. No idea why. */
|
||||
non_fatal (_("%s[%s]: Warning: version note missing - assuming version 3"),
|
||||
bfd_get_filename (abfd), bfd_section_name (sec));
|
||||
version_3_seen = 2;
|
||||
#endif
|
||||
}
|
||||
|
||||
if ((version_1_seen > 0 && version_2_seen > 0)
|
||||
if ( (version_1_seen > 0 && version_2_seen > 0)
|
||||
|| (version_1_seen > 0 && version_3_seen > 0)
|
||||
|| (version_2_seen > 0 && version_3_seen > 0))
|
||||
{
|
||||
|
|
@ -2182,270 +2312,215 @@ merge_gnu_build_notes (bfd * abfd, asection * sec, bfd_size_type size, bfd_byte
|
|||
goto done;
|
||||
}
|
||||
|
||||
/* Merging is only needed if there is more than one version note... */
|
||||
if (version_1_seen == 1 || version_2_seen == 1 || version_3_seen == 1)
|
||||
goto done;
|
||||
/* We are now only supporting the merging v3+ notes
|
||||
- it makes things much simpler. */
|
||||
if (version_3_seen == 0)
|
||||
{
|
||||
merge_debug ("%s: skipping merge - not using v3 notes", bfd_section_name (sec));
|
||||
goto done;
|
||||
}
|
||||
|
||||
attribute_type_byte = version_1_seen ? 1 : 3;
|
||||
val_start = attribute_type_byte + 1;
|
||||
merge_debug ("Merging section %s which contains %ld notes\n",
|
||||
sec->name, pnotes_end - pnotes);
|
||||
|
||||
/* We used to require that the first note be a version note,
|
||||
but this is no longer enforced. Due to the problems with
|
||||
linking sections with the same name (eg .gnu.build.note.hot)
|
||||
we cannot guarantee that the first note will be a version note. */
|
||||
/* Sort the notes. */
|
||||
qsort (pnotes, pnotes_end - pnotes, sizeof (* pnotes),
|
||||
compare_gnu_build_notes);
|
||||
|
||||
#if DEBUG_MERGE
|
||||
merge_debug ("Results of initial sort:\n");
|
||||
for (pnote = pnotes; pnote < pnotes_end; pnote ++)
|
||||
merge_debug ("offset %#08lx range %#08lx..%#08lx type %ld attribute %d namesz %ld\n",
|
||||
(pnote->note.namedata - (char *) contents) - 12,
|
||||
pnote->start, pnote->end,
|
||||
pnote->note.type,
|
||||
pnote->note.namedata[3],
|
||||
pnote->note.namesz
|
||||
);
|
||||
#endif
|
||||
|
||||
/* Now merge the notes. The rules are:
|
||||
1. Preserve the ordering of the notes.
|
||||
2. Preserve any NT_GNU_BUILD_ATTRIBUTE_FUNC notes.
|
||||
3. Eliminate any NT_GNU_BUILD_ATTRIBUTE_OPEN notes that have the same
|
||||
full name field as the immediately preceeding note with the same type
|
||||
of name and whose address ranges coincide.
|
||||
IE - if there are gaps in the coverage of the notes, then these gaps
|
||||
must be preserved.
|
||||
4. Combine the numeric value of any NT_GNU_BUILD_ATTRIBUTE_OPEN notes
|
||||
of type GNU_BUILD_ATTRIBUTE_STACK_SIZE.
|
||||
5. If an NT_GNU_BUILD_ATTRIBUTE_OPEN note is going to be preserved and
|
||||
its description field is empty then the nearest preceeding OPEN note
|
||||
with a non-empty description field must also be preserved *OR* the
|
||||
description field of the note must be changed to contain the starting
|
||||
address to which it refers.
|
||||
6. Notes with the same start and end address can be deleted.
|
||||
7. FIXME: Elminate duplicate version notes - even function specific ones ? */
|
||||
1. If a note has a zero range, it can be eliminated.
|
||||
2. If two notes have the same namedata then:
|
||||
2a. If one note's range is fully covered by the other note
|
||||
then it can be deleted.
|
||||
2b. If one note's range partially overlaps or adjoins the
|
||||
other note then if they are both of the same type (open
|
||||
or func) then they can be merged and one deleted. If
|
||||
they are of different types then they cannot be merged. */
|
||||
for (pnote = pnotes; pnote < pnotes_end; pnote ++)
|
||||
{
|
||||
int note_type;
|
||||
objcopy_internal_note * back;
|
||||
objcopy_internal_note * prev_open_with_range = NULL;
|
||||
/* Skip already deleted notes.
|
||||
FIXME: Can this happen ? We are scanning forwards and
|
||||
deleting backwards after all. */
|
||||
if (is_deleted_note (pnote))
|
||||
continue;
|
||||
|
||||
/* Rule 6 - delete 0-range notes. */
|
||||
/* Rule 1 - delete 0-range notes. */
|
||||
if (pnote->start == pnote->end)
|
||||
{
|
||||
duplicate_found = TRUE;
|
||||
merge_debug ("Delete note at offset %#08lx - empty range\n",
|
||||
(pnote->note.namedata - (char *) contents) - 12);
|
||||
pnote->note.type = 0;
|
||||
continue;
|
||||
}
|
||||
|
||||
/* Rule 2 - preserve function notes. */
|
||||
if (! is_open_note (pnote))
|
||||
int iter;
|
||||
objcopy_internal_note * back;
|
||||
|
||||
/* Rule 2: Check to see if there is an identical previous note. */
|
||||
for (iter = 0, back = pnote - 1; back >= pnotes; back --)
|
||||
{
|
||||
int iter;
|
||||
if (is_deleted_note (back))
|
||||
continue;
|
||||
|
||||
/* Check to see if there is an identical previous function note.
|
||||
This can happen with overlays for example. */
|
||||
for (iter = 0, back = pnote -1; back >= pnotes; back --)
|
||||
/* Our sorting function should have placed all identically
|
||||
attributed notes together, so if we see a note of a different
|
||||
attribute type stop searching. */
|
||||
if (back->note.namesz != pnote->note.namesz
|
||||
|| memcmp (back->note.namedata,
|
||||
pnote->note.namedata, pnote->note.namesz) != 0)
|
||||
break;
|
||||
|
||||
if (back->start == pnote->start
|
||||
&& back->end == pnote->end)
|
||||
{
|
||||
if (back->start == pnote->start
|
||||
&& back->end == pnote->end
|
||||
&& back->note.namesz == pnote->note.namesz
|
||||
&& memcmp (back->note.namedata, pnote->note.namedata, pnote->note.namesz) == 0)
|
||||
{
|
||||
duplicate_found = TRUE;
|
||||
pnote->note.type = 0;
|
||||
break;
|
||||
}
|
||||
|
||||
/* Don't scan too far back however. */
|
||||
if (iter ++ > 16)
|
||||
break;
|
||||
merge_debug ("Delete note at offset %#08lx - duplicate of note at offset %#08lx\n",
|
||||
(pnote->note.namedata - (char *) contents) - 12,
|
||||
(back->note.namedata - (char *) contents) - 12);
|
||||
pnote->note.type = 0;
|
||||
break;
|
||||
}
|
||||
|
||||
/* Rule 2a. */
|
||||
if (contained_by (pnote, back))
|
||||
{
|
||||
merge_debug ("Delete note at offset %#08lx - fully contained by note at %#08lx\n",
|
||||
(pnote->note.namedata - (char *) contents) - 12,
|
||||
(back->note.namedata - (char *) contents) - 12);
|
||||
pnote->note.type = 0;
|
||||
break;
|
||||
}
|
||||
|
||||
#if DEBUG_MERGE
|
||||
/* This should not happen as we have sorted the
|
||||
notes with earlier starting addresses first. */
|
||||
if (contained_by (back, pnote))
|
||||
merge_debug ("ERROR: UNEXPECTED CONTAINMENT\n");
|
||||
#endif
|
||||
|
||||
/* Rule 2b. */
|
||||
if (overlaps_or_adjoins (back, pnote)
|
||||
&& is_func_note (back) == is_func_note (pnote))
|
||||
{
|
||||
merge_debug ("Delete note at offset %#08lx - merge into note at %#08lx\n",
|
||||
(pnote->note.namedata - (char *) contents) - 12,
|
||||
(back->note.namedata - (char *) contents) - 12);
|
||||
|
||||
back->end = back->end > pnote->end ? back->end : pnote->end;
|
||||
back->start = back->start < pnote->start ? back->start : pnote->start;
|
||||
pnote->note.type = 0;
|
||||
break;
|
||||
}
|
||||
|
||||
/* Don't scan too far back however. */
|
||||
if (iter ++ > 16)
|
||||
{
|
||||
/* FIXME: Not sure if this can ever be triggered. */
|
||||
merge_debug ("ITERATION LIMIT REACHED\n");
|
||||
break;
|
||||
}
|
||||
continue;
|
||||
}
|
||||
#if DEBUG_MERGE
|
||||
if (! is_deleted_note (pnote))
|
||||
merge_debug ("Unable to do anything with note at %#08lx\n",
|
||||
(pnote->note.namedata - (char *) contents) - 12);
|
||||
#endif
|
||||
}
|
||||
|
||||
note_type = pnote->note.namedata[attribute_type_byte];
|
||||
/* Resort the notes. */
|
||||
merge_debug ("Final sorting of notes\n");
|
||||
qsort (pnotes, pnotes_end - pnotes, sizeof (* pnotes), sort_gnu_build_notes);
|
||||
|
||||
/* Scan backwards from pnote, looking for duplicates.
|
||||
Clear the type field of any found - but do not delete them just yet. */
|
||||
for (back = pnote - 1; back >= pnotes; back --)
|
||||
/* Reconstruct the ELF notes. */
|
||||
bfd_byte * new_contents;
|
||||
bfd_byte * old;
|
||||
bfd_byte * new;
|
||||
bfd_size_type new_size;
|
||||
bfd_vma prev_start = 0;
|
||||
bfd_vma prev_end = 0;
|
||||
|
||||
new = new_contents = xmalloc (size);
|
||||
for (pnote = pnotes, old = contents;
|
||||
pnote < pnotes_end;
|
||||
pnote ++)
|
||||
{
|
||||
bfd_size_type note_size = 12 + pnote->padded_namesz + pnote->note.descsz;
|
||||
|
||||
if (! is_deleted_note (pnote))
|
||||
{
|
||||
int back_type = back->note.namedata[attribute_type_byte];
|
||||
|
||||
/* If this is the first open note with an address
|
||||
range that we have encountered then record it. */
|
||||
if (prev_open_with_range == NULL
|
||||
&& back->note.descsz > 0
|
||||
&& ! is_func_note (back))
|
||||
prev_open_with_range = back;
|
||||
|
||||
if (! is_open_note (back))
|
||||
continue;
|
||||
|
||||
/* If the two notes are different then keep on searching. */
|
||||
if (back_type != note_type)
|
||||
continue;
|
||||
|
||||
/* Rule 4 - combine stack size notes. */
|
||||
if (back_type == GNU_BUILD_ATTRIBUTE_STACK_SIZE)
|
||||
/* Create the note, potentially using the
|
||||
address range of the previous note. */
|
||||
if (pnote->start == prev_start && pnote->end == prev_end)
|
||||
{
|
||||
unsigned char * name;
|
||||
unsigned long note_val;
|
||||
unsigned long back_val;
|
||||
unsigned int shift;
|
||||
unsigned int bytes;
|
||||
unsigned long byte;
|
||||
|
||||
for (shift = 0, note_val = 0,
|
||||
bytes = pnote->note.namesz - val_start,
|
||||
name = (unsigned char *) pnote->note.namedata + val_start;
|
||||
bytes--;)
|
||||
{
|
||||
byte = (* name ++) & 0xff;
|
||||
note_val |= byte << shift;
|
||||
shift += 8;
|
||||
}
|
||||
|
||||
for (shift = 0, back_val = 0,
|
||||
bytes = back->note.namesz - val_start,
|
||||
name = (unsigned char *) back->note.namedata + val_start;
|
||||
bytes--;)
|
||||
{
|
||||
byte = (* name ++) & 0xff;
|
||||
back_val |= byte << shift;
|
||||
shift += 8;
|
||||
}
|
||||
|
||||
back_val += note_val;
|
||||
if (num_bytes (back_val) >= back->note.namesz - val_start)
|
||||
{
|
||||
/* We have a problem - the new value requires more bytes of
|
||||
storage in the name field than are available. Currently
|
||||
we have no way of fixing this, so we just preserve both
|
||||
notes. */
|
||||
continue;
|
||||
}
|
||||
|
||||
/* Write the new val into back. */
|
||||
name = (unsigned char *) back->note.namedata + val_start;
|
||||
while (name < (unsigned char *) back->note.namedata
|
||||
+ back->note.namesz)
|
||||
{
|
||||
byte = back_val & 0xff;
|
||||
* name ++ = byte;
|
||||
if (back_val == 0)
|
||||
break;
|
||||
back_val >>= 8;
|
||||
}
|
||||
|
||||
duplicate_found = TRUE;
|
||||
pnote->note.type = 0;
|
||||
break;
|
||||
}
|
||||
|
||||
/* Rule 3 - combine identical open notes. */
|
||||
if (back->note.namesz == pnote->note.namesz
|
||||
&& memcmp (back->note.namedata,
|
||||
pnote->note.namedata, back->note.namesz) == 0
|
||||
&& ! gap_exists (back, pnote))
|
||||
{
|
||||
duplicate_found = TRUE;
|
||||
pnote->note.type = 0;
|
||||
|
||||
if (pnote->end > back->end)
|
||||
back->end = pnote->end;
|
||||
|
||||
if (version_3_seen)
|
||||
back->modified = TRUE;
|
||||
break;
|
||||
}
|
||||
|
||||
/* Rule 5 - Since we are keeping this note we must check to see
|
||||
if its description refers back to an earlier OPEN version
|
||||
note that has been scheduled for deletion. If so then we
|
||||
must make sure that version note is also preserved. */
|
||||
if (version_3_seen)
|
||||
{
|
||||
/* As of version 3 we can just
|
||||
move the range into the note. */
|
||||
pnote->modified = TRUE;
|
||||
pnote->note.type = NT_GNU_BUILD_ATTRIBUTE_FUNC;
|
||||
back->modified = TRUE;
|
||||
back->note.type = NT_GNU_BUILD_ATTRIBUTE_FUNC;
|
||||
bfd_put_32 (abfd, pnote->note.namesz, new);
|
||||
bfd_put_32 (abfd, 0, new + 4);
|
||||
bfd_put_32 (abfd, pnote->note.type, new + 8);
|
||||
new += 12;
|
||||
memcpy (new, pnote->note.namedata, pnote->note.namesz);
|
||||
if (pnote->note.namesz < pnote->padded_namesz)
|
||||
memset (new + pnote->note.namesz, 0, pnote->padded_namesz - pnote->note.namesz);
|
||||
new += pnote->padded_namesz;
|
||||
}
|
||||
else
|
||||
{
|
||||
if (pnote->note.descsz == 0
|
||||
&& prev_open_with_range != NULL
|
||||
&& prev_open_with_range->note.type == 0)
|
||||
prev_open_with_range->note.type = NT_GNU_BUILD_ATTRIBUTE_OPEN;
|
||||
}
|
||||
|
||||
/* We have found a similar attribute but the details do not match.
|
||||
Stop searching backwards. */
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
if (duplicate_found)
|
||||
{
|
||||
bfd_byte * new_contents;
|
||||
bfd_byte * old;
|
||||
bfd_byte * new;
|
||||
bfd_size_type new_size;
|
||||
bfd_vma prev_start = 0;
|
||||
bfd_vma prev_end = 0;
|
||||
|
||||
/* Eliminate the duplicates. */
|
||||
new = new_contents = xmalloc (size);
|
||||
for (pnote = pnotes, old = contents;
|
||||
pnote < pnotes_end;
|
||||
pnote ++)
|
||||
{
|
||||
bfd_size_type note_size = 12 + pnote->note.namesz + pnote->note.descsz;
|
||||
|
||||
if (pnote->note.type != 0)
|
||||
{
|
||||
if (pnote->modified)
|
||||
bfd_put_32 (abfd, pnote->note.namesz, new);
|
||||
bfd_put_32 (abfd, is_64bit (abfd) ? 16 : 8, new + 4);
|
||||
bfd_put_32 (abfd, pnote->note.type, new + 8);
|
||||
new += 12;
|
||||
memcpy (new, pnote->note.namedata, pnote->note.namesz);
|
||||
if (pnote->note.namesz < pnote->padded_namesz)
|
||||
memset (new + pnote->note.namesz, 0, pnote->padded_namesz - pnote->note.namesz);
|
||||
new += pnote->padded_namesz;
|
||||
if (is_64bit (abfd))
|
||||
{
|
||||
/* If the note has been modified then we must copy it by
|
||||
hand, potentially adding in a new description field. */
|
||||
if (pnote->start == prev_start && pnote->end == prev_end)
|
||||
{
|
||||
bfd_put_32 (abfd, pnote->note.namesz, new);
|
||||
bfd_put_32 (abfd, 0, new + 4);
|
||||
bfd_put_32 (abfd, pnote->note.type, new + 8);
|
||||
new += 12;
|
||||
memcpy (new, pnote->note.namedata, pnote->note.namesz);
|
||||
new += pnote->note.namesz;
|
||||
}
|
||||
else
|
||||
{
|
||||
bfd_put_32 (abfd, pnote->note.namesz, new);
|
||||
bfd_put_32 (abfd, is_64bit (abfd) ? 16 : 8, new + 4);
|
||||
bfd_put_32 (abfd, pnote->note.type, new + 8);
|
||||
new += 12;
|
||||
memcpy (new, pnote->note.namedata, pnote->note.namesz);
|
||||
new += pnote->note.namesz;
|
||||
if (is_64bit (abfd))
|
||||
{
|
||||
bfd_put_64 (abfd, pnote->start, new);
|
||||
bfd_put_64 (abfd, pnote->end, new + 8);
|
||||
new += 16;
|
||||
}
|
||||
else
|
||||
{
|
||||
bfd_put_32 (abfd, pnote->start, new);
|
||||
bfd_put_32 (abfd, pnote->end, new + 4);
|
||||
new += 8;
|
||||
}
|
||||
}
|
||||
bfd_put_64 (abfd, pnote->start, new);
|
||||
bfd_put_64 (abfd, pnote->end, new + 8);
|
||||
new += 16;
|
||||
}
|
||||
else
|
||||
{
|
||||
memcpy (new, old, note_size);
|
||||
new += note_size;
|
||||
bfd_put_32 (abfd, pnote->start, new);
|
||||
bfd_put_32 (abfd, pnote->end, new + 4);
|
||||
new += 8;
|
||||
}
|
||||
|
||||
prev_start = pnote->start;
|
||||
prev_end = pnote->end;
|
||||
}
|
||||
|
||||
old += note_size;
|
||||
}
|
||||
|
||||
new_size = new - new_contents;
|
||||
memcpy (contents, new_contents, new_size);
|
||||
size = new_size;
|
||||
free (new_contents);
|
||||
old += note_size;
|
||||
}
|
||||
|
||||
#if DEBUG_MERGE
|
||||
merge_debug ("Results of merge:\n");
|
||||
for (pnote = pnotes; pnote < pnotes_end; pnote ++)
|
||||
if (! is_deleted_note (pnote))
|
||||
merge_debug ("offset %#08lx range %#08lx..%#08lx type %ld attribute %d namesz %ld\n",
|
||||
(pnote->note.namedata - (char *) contents) - 12,
|
||||
pnote->start, pnote->end,
|
||||
pnote->note.type,
|
||||
pnote->note.namedata[3],
|
||||
pnote->note.namesz
|
||||
);
|
||||
#endif
|
||||
|
||||
new_size = new - new_contents;
|
||||
memcpy (contents, new_contents, new_size);
|
||||
size = new_size;
|
||||
free (new_contents);
|
||||
|
||||
done:
|
||||
if (err)
|
||||
{
|
||||
|
|
@ -2783,53 +2858,62 @@ copy_object (bfd *ibfd, bfd *obfd, const bfd_arch_info_type *input_arch)
|
|||
}
|
||||
}
|
||||
|
||||
merged_note_section * merged_note_sections = NULL;
|
||||
if (merge_notes)
|
||||
{
|
||||
/* This palaver is necessary because we must set the output
|
||||
section size first, before its contents are ready. */
|
||||
osec = bfd_get_section_by_name (ibfd, GNU_BUILD_ATTRS_SECTION_NAME);
|
||||
if (osec && is_merged_note_section (ibfd, osec))
|
||||
for (osec = ibfd->sections; osec != NULL; osec = osec->next)
|
||||
{
|
||||
bfd_size_type size;
|
||||
|
||||
size = bfd_section_size (osec);
|
||||
if (! is_mergeable_note_section (ibfd, osec))
|
||||
continue;
|
||||
|
||||
bfd_size_type size = bfd_section_size (osec);
|
||||
|
||||
if (size == 0)
|
||||
{
|
||||
bfd_nonfatal_message (NULL, ibfd, osec, _("warning: note section is empty"));
|
||||
merge_notes = FALSE;
|
||||
bfd_nonfatal_message (NULL, ibfd, osec,
|
||||
_("warning: note section is empty"));
|
||||
continue;
|
||||
}
|
||||
else if (! bfd_get_full_section_contents (ibfd, osec, & merged_notes))
|
||||
|
||||
merged_note_section * merged = xmalloc (sizeof * merged);
|
||||
merged->contents = NULL;
|
||||
if (! bfd_get_full_section_contents (ibfd, osec, & merged->contents))
|
||||
{
|
||||
bfd_nonfatal_message (NULL, ibfd, osec, _("warning: could not load note section"));
|
||||
free (merged_notes);
|
||||
merged_notes = NULL;
|
||||
merge_notes = FALSE;
|
||||
bfd_nonfatal_message (NULL, ibfd, osec,
|
||||
_("warning: could not load note section"));
|
||||
free (merged->contents);
|
||||
free (merged);
|
||||
continue;
|
||||
}
|
||||
else
|
||||
|
||||
merged->size = merge_gnu_build_notes (ibfd, osec, size,
|
||||
merged->contents);
|
||||
if (merged->size == size)
|
||||
{
|
||||
merged_size = merge_gnu_build_notes (ibfd, osec, size, merged_notes);
|
||||
if (merged_size == size)
|
||||
{
|
||||
/* Merging achieves nothing. */
|
||||
free (merged_notes);
|
||||
merged_notes = NULL;
|
||||
merge_notes = FALSE;
|
||||
merged_size = 0;
|
||||
}
|
||||
else
|
||||
{
|
||||
if (osec->output_section == NULL
|
||||
|| !bfd_set_section_size (osec->output_section,
|
||||
merged_size))
|
||||
{
|
||||
bfd_nonfatal_message (NULL, obfd, osec, _("warning: failed to set merged notes size"));
|
||||
free (merged_notes);
|
||||
merged_notes = NULL;
|
||||
merge_notes = FALSE;
|
||||
merged_size = 0;
|
||||
}
|
||||
}
|
||||
/* Merging achieves nothing. */
|
||||
merge_debug ("Merge of section %s achieved nothing - skipping\n",
|
||||
bfd_section_name (osec));
|
||||
free (merged->contents);
|
||||
free (merged);
|
||||
continue;
|
||||
}
|
||||
|
||||
if (osec->output_section == NULL
|
||||
|| !bfd_set_section_size (osec->output_section, merged->size))
|
||||
{
|
||||
bfd_nonfatal_message (NULL, obfd, osec,
|
||||
_("warning: failed to set merged notes size"));
|
||||
free (merged->contents);
|
||||
free (merged);
|
||||
continue;
|
||||
}
|
||||
|
||||
/* Add section to list of merged sections. */
|
||||
merged->sec = osec;
|
||||
merged->next = merged_note_sections;
|
||||
merged_note_sections = merged;
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -3154,23 +3238,72 @@ copy_object (bfd *ibfd, bfd *obfd, const bfd_arch_info_type *input_arch)
|
|||
}
|
||||
}
|
||||
|
||||
if (merge_notes)
|
||||
if (merged_note_sections != NULL)
|
||||
{
|
||||
osec = bfd_get_section_by_name (obfd, GNU_BUILD_ATTRS_SECTION_NAME);
|
||||
if (osec && is_merged_note_section (obfd, osec))
|
||||
merged_note_section * merged = NULL;
|
||||
|
||||
for (osec = obfd->sections; osec != NULL; osec = osec->next)
|
||||
{
|
||||
if (! bfd_set_section_contents (obfd, osec, merged_notes, 0, merged_size))
|
||||
if (! is_mergeable_note_section (obfd, osec))
|
||||
continue;
|
||||
|
||||
if (merged == NULL)
|
||||
merged = merged_note_sections;
|
||||
|
||||
/* It is likely that output sections are in the same order
|
||||
as the input sections, but do not assume that this is
|
||||
the case. */
|
||||
if (strcmp (bfd_section_name (merged->sec),
|
||||
bfd_section_name (osec)) != 0)
|
||||
{
|
||||
bfd_nonfatal_message (NULL, obfd, osec, _("error: failed to copy merged notes into output"));
|
||||
for (merged = merged_note_sections;
|
||||
merged != NULL;
|
||||
merged = merged->next)
|
||||
if (strcmp (bfd_section_name (merged->sec),
|
||||
bfd_section_name (osec)) == 0)
|
||||
break;
|
||||
|
||||
if (merged == NULL)
|
||||
{
|
||||
bfd_nonfatal_message
|
||||
(NULL, obfd, osec,
|
||||
_("error: failed to copy merged notes into output"));
|
||||
continue;
|
||||
}
|
||||
}
|
||||
|
||||
if (! is_mergeable_note_section (obfd, osec))
|
||||
{
|
||||
bfd_nonfatal_message
|
||||
(NULL, obfd, osec,
|
||||
_("error: failed to copy merged notes into output"));
|
||||
continue;
|
||||
}
|
||||
|
||||
if (! bfd_set_section_contents (obfd, osec, merged->contents, 0,
|
||||
merged->size))
|
||||
{
|
||||
bfd_nonfatal_message
|
||||
(NULL, obfd, osec,
|
||||
_("error: failed to copy merged notes into output"));
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
merged = merged->next;
|
||||
}
|
||||
|
||||
/* Free the memory. */
|
||||
merged_note_section * next;
|
||||
for (merged = merged_note_sections; merged != NULL; merged = next)
|
||||
{
|
||||
next = merged->next;
|
||||
free (merged->contents);
|
||||
free (merged);
|
||||
}
|
||||
else if (! is_strip)
|
||||
bfd_nonfatal_message (NULL, obfd, osec, _("could not find any mergeable note sections"));
|
||||
free (merged_notes);
|
||||
merged_notes = NULL;
|
||||
merge_notes = FALSE;
|
||||
}
|
||||
else if (merge_notes && ! is_strip)
|
||||
non_fatal (_("%s: Could not find any mergeable note sections"),
|
||||
bfd_get_filename (ibfd));
|
||||
|
||||
if (gnu_debuglink_filename != NULL)
|
||||
{
|
||||
|
|
@ -3959,7 +4092,7 @@ skip_section (bfd *ibfd, sec_ptr isection, bfd_boolean skip_copy)
|
|||
|
||||
/* When merging a note section we skip the copying of the contents,
|
||||
but not the copying of the relocs associated with the contents. */
|
||||
if (skip_copy && is_merged_note_section (ibfd, isection))
|
||||
if (skip_copy && is_mergeable_note_section (ibfd, isection))
|
||||
return TRUE;
|
||||
|
||||
flags = bfd_section_flags (isection);
|
||||
|
|
|
|||
|
|
@ -6,12 +6,11 @@
|
|||
|
||||
#...
|
||||
[ ]+Owner[ ]+Data size[ ]+Description
|
||||
[ ]+\$<version>1[ ]+0x00000004[ ]+OPEN[ ]+Applies to region from 0x100 \(note1.s\)
|
||||
[ ]+\$<tool>gcc 7.0.1[ ]+0x00000000[ ]+OPEN[ ]+Applies to region from 0x100
|
||||
[ ]+\+<stack prot>true[ ]+0x00000000[ ]+OPEN[ ]+Applies to region from 0x100
|
||||
[ ]+\*<PIC>static[ ]+0x00000000[ ]+OPEN[ ]+Applies to region from 0x100
|
||||
[ ]+\*<ABI>0x0[ ]+0x00000000[ ]+OPEN[ ]+Applies to region from 0x100
|
||||
[ ]+\$<version>1[ ]+0x00000004[ ]+OPEN[ ]+Applies to region from 0x104 \(note2.s\)
|
||||
[ ]+!<stack prot>false[ ]+0x00000000[ ]+OPEN[ ]+Applies to region from 0x104
|
||||
[ ]+\*<PIC>pic[ ]+0x00000004[ ]+func[ ]+Applies to region from 0x104 \(func1\)
|
||||
[ ]+GA\$<version>3p1[ ]+0x00000008[ ]+OPEN[ ]+Applies to region from 0x100 to 0x10b \(note1.s\)
|
||||
[ ]+GA\$<tool>gcc 7.0.1[ ]+0x00000000[ ]+OPEN[ ]+Applies to region from 0x100 to 0x10b
|
||||
[ ]+GA\*<ABI>0x0[ ]+0x00000008[ ]+OPEN[ ]+Applies to region from 0x100 to 0x108 \(note1.s\)
|
||||
[ ]+GA\+<stack prot>true[ ]+0x00000008[ ]+OPEN[ ]+Applies to region from 0x100 to 0x104 \(note1.s\)
|
||||
[ ]+GA\*<PIC>static[ ]+0x00000000[ ]+OPEN[ ]+Applies to region from 0x100 to 0x104
|
||||
[ ]+GA!<stack prot>false[ ]+0x00000008[ ]+OPEN[ ]+Applies to region from 0x104 to 0x108 \(note2.s\)
|
||||
[ ]+GA\*<PIC>pic[ ]+0x00000008[ ]+func[ ]+Applies to region from 0x104 to 0x106 \(func1\)
|
||||
#...
|
||||
|
|
|
|||
|
|
@ -6,32 +6,37 @@ note1.s:
|
|||
|
||||
.pushsection .gnu.build.attributes, "0x100000", %note
|
||||
.balign 4
|
||||
.dc.l 4
|
||||
.dc.l 4
|
||||
.dc.l 8
|
||||
.dc.l 8
|
||||
.dc.l 0x100
|
||||
.asciz "$1"
|
||||
.asciz "GA$3p1"
|
||||
.dc.l 0x100
|
||||
.dc.l 0x104
|
||||
|
||||
.dc.l 12
|
||||
.dc.l 14
|
||||
.dc.l 0
|
||||
.dc.l 0x100
|
||||
.asciz "$gcc 7.0.1"
|
||||
.asciz "GA$gcc 7.0.1"
|
||||
.dc.b 0,0
|
||||
|
||||
.dc.l 3
|
||||
.dc.l 5
|
||||
.dc.l 0
|
||||
.dc.l 0x100
|
||||
.dc.b 0x2b, 0x2, 0
|
||||
.dc.b 0
|
||||
.dc.b 0x47, 0x41, 0x2b, 0x2, 0
|
||||
.dc.b 0,0,0
|
||||
|
||||
.dc.l 4
|
||||
.dc.l 6
|
||||
.dc.l 0
|
||||
.dc.l 0x100
|
||||
.dc.b 0x2a, 0x7, 0, 0
|
||||
.dc.b 0x47, 0x41, 0x2a, 0x7, 0, 0
|
||||
.dc.b 0,0
|
||||
|
||||
.dc.l 4
|
||||
.dc.l 6
|
||||
.dc.l 0
|
||||
.dc.l 0x100
|
||||
.dc.b 0x2a, 0x6, 0, 0
|
||||
.dc.b 0x47, 0x41, 0x2a, 0x6, 0, 0
|
||||
.dc.b 0,0
|
||||
|
||||
.popsection
|
||||
|
||||
|
||||
|
|
@ -42,33 +47,38 @@ func1:
|
|||
.dc.l 0x100
|
||||
|
||||
.pushsection .gnu.build.attributes, "0x100000", %note
|
||||
.dc.l 4
|
||||
.dc.l 4
|
||||
.dc.l 8
|
||||
.dc.l 8
|
||||
.dc.l 0x100
|
||||
.asciz "$1"
|
||||
.dc.l 0x104
|
||||
|
||||
.dc.l 12
|
||||
.dc.l 0
|
||||
.dc.l 0x100
|
||||
.asciz "$gcc 7.0.1"
|
||||
|
||||
.dc.l 3
|
||||
.dc.l 0
|
||||
.dc.l 0x100
|
||||
.dc.b 0x21, 0x2, 0
|
||||
.dc.b 0
|
||||
|
||||
.dc.l 4
|
||||
.dc.l 4
|
||||
.dc.l 0x101
|
||||
.dc.b 0x2a, 0x7, 1, 0
|
||||
.asciz "GA$3p1"
|
||||
.dc.l 0x104
|
||||
.dc.l 0x108
|
||||
|
||||
.dc.l 4
|
||||
.dc.l 14
|
||||
.dc.l 0
|
||||
.dc.l 0x100
|
||||
.dc.b 0x2a, 0x6, 0, 0
|
||||
.asciz "GA$gcc 7.0.1"
|
||||
.dc.b 0,0
|
||||
|
||||
.dc.l 5
|
||||
.dc.l 0
|
||||
.dc.l 0x100
|
||||
.dc.b 0x47, 0x41, 0x21, 0x2, 0
|
||||
.dc.b 0,0,0
|
||||
|
||||
.dc.l 6
|
||||
.dc.l 8
|
||||
.dc.l 0x101
|
||||
.dc.b 0x47, 0x41, 0x2a, 0x7, 1, 0
|
||||
.dc.b 0,0
|
||||
.dc.l 0x104
|
||||
.dc.l 0x106
|
||||
|
||||
.dc.l 6
|
||||
.dc.l 0
|
||||
.dc.l 0x100
|
||||
.dc.b 0x47, 0x41, 0x2a, 0x6, 0, 0
|
||||
.dc.b 0,0
|
||||
.popsection
|
||||
|
||||
|
||||
|
|
@ -77,16 +87,18 @@ note3.s:
|
|||
.dc.l 0x100
|
||||
|
||||
.pushsection .gnu.build.attributes, "0x100000", %note
|
||||
.dc.l 4
|
||||
.dc.l 4
|
||||
.dc.l 8
|
||||
.dc.l 8
|
||||
.dc.l 0x100
|
||||
.asciz "$1"
|
||||
.asciz "GA$3p1"
|
||||
.dc.l 0x108
|
||||
.dc.l 0x10b
|
||||
|
||||
.dc.l 12
|
||||
.dc.l 14
|
||||
.dc.l 0
|
||||
.dc.l 0x100
|
||||
.asciz "$gcc 7.0.1"
|
||||
.asciz "GA$gcc 7.0.1"
|
||||
.dc.b 0,0
|
||||
|
||||
.popsection
|
||||
|
||||
|
|
|
|||
|
|
@ -10,12 +10,11 @@
|
|||
|
||||
#...
|
||||
[ ]+Owner[ ]+Data size[ ]+Description
|
||||
[ ]+\$<version>1[ ]+0x00000008[ ]+OPEN[ ]+Applies to region from 0x100 \(note1.s\)
|
||||
[ ]+\$<tool>gcc 7.0.1[ ]+0x00000000[ ]+OPEN[ ]+Applies to region from 0x100
|
||||
[ ]+\+<stack prot>true[ ]+0x00000000[ ]+OPEN[ ]+Applies to region from 0x100
|
||||
[ ]+\*<PIC>static[ ]+0x00000000[ ]+OPEN[ ]+Applies to region from 0x100
|
||||
[ ]+\*<ABI>0x0[ ]+0x00000000[ ]+OPEN[ ]+Applies to region from 0x100
|
||||
[ ]+\$<version>1[ ]+0x00000008[ ]+OPEN[ ]+Applies to region from 0x104 \(note2.s\)
|
||||
[ ]+!<stack prot>false[ ]+0x00000000[ ]+OPEN[ ]+Applies to region from 0x104
|
||||
[ ]+\*<PIC>pic[ ]+0x00000008[ ]+func[ ]+Applies to region from 0x104 \(func1\)
|
||||
[ ]+GA\$<version>3p1[ ]+0x00000010[ ]+OPEN[ ]+Applies to region from 0x100 to 0x10b \(note1.s\)
|
||||
[ ]+GA\$<tool>gcc 7.0.1[ ]+0x00000000[ ]+OPEN[ ]+Applies to region from 0x100 to 0x10b
|
||||
[ ]+GA\*<ABI>0x0[ ]+0x00000010[ ]+OPEN[ ]+Applies to region from 0x100 to 0x108 \(note1.s\)
|
||||
[ ]+GA\+<stack prot>true[ ]+0x00000010[ ]+OPEN[ ]+Applies to region from 0x100 to 0x104 \(note1.s\)
|
||||
[ ]+GA\*<PIC>static[ ]+0x00000000[ ]+OPEN[ ]+Applies to region from 0x100 to 0x104
|
||||
[ ]+GA!<stack prot>false[ ]+0x00000010[ ]+OPEN[ ]+Applies to region from 0x104 to 0x108 \(note2.s\)
|
||||
[ ]+GA\*<PIC>pic[ ]+0x00000010[ ]+func[ ]+Applies to region from 0x104 to 0x106 \(func1\)
|
||||
#...
|
||||
|
|
|
|||
|
|
@ -6,32 +6,43 @@ note1.s:
|
|||
|
||||
.pushsection .gnu.build.attributes, "0x100000", %note
|
||||
.balign 4
|
||||
.dc.l 4
|
||||
.dc.l 8
|
||||
.dc.l 16
|
||||
.dc.l 0x100
|
||||
.asciz "$1"
|
||||
.asciz "GA$3p1"
|
||||
.8byte 0x100
|
||||
.8byte 0x104
|
||||
|
||||
.dc.l 12
|
||||
.dc.l 14
|
||||
.dc.l 0
|
||||
.dc.l 0x100
|
||||
.asciz "$gcc 7.0.1"
|
||||
|
||||
.dc.l 3
|
||||
.asciz "GA$gcc 7.0.1"
|
||||
.dc.b 0,0
|
||||
|
||||
.dc.l 5
|
||||
.dc.l 0
|
||||
.dc.l 0x100
|
||||
.dc.b 0x2b, 0x2, 0
|
||||
.dc.b 0
|
||||
.dc.b 0x47, 0x41, 0x2b, 0x2, 0
|
||||
.dc.b 0,0,0
|
||||
|
||||
.dc.l 4
|
||||
.dc.l 6
|
||||
.dc.l 0
|
||||
.dc.l 0x100
|
||||
.dc.b 0x2a, 0x7, 0, 0
|
||||
.dc.b 0x47, 0x41, 0x2a, 0x7, 0, 0
|
||||
.dc.b 0,0
|
||||
|
||||
.dc.l 4
|
||||
.dc.l 6
|
||||
.dc.l 0
|
||||
.dc.l 0x100
|
||||
.dc.b 0x2a, 0x6, 0, 0
|
||||
.dc.b 0x47, 0x41, 0x2a, 0x6, 0, 0
|
||||
.dc.b 0,0
|
||||
|
||||
.dc.l 6
|
||||
.dc.l 0
|
||||
.dc.l 0x100
|
||||
.dc.b 0x47, 0x41, 0x2a, 0x7, 0, 0
|
||||
.dc.b 0,0
|
||||
|
||||
.popsection
|
||||
|
||||
|
||||
|
|
@ -43,33 +54,38 @@ func1:
|
|||
.dc.l 0x100
|
||||
|
||||
.pushsection .gnu.build.attributes, "0x100000", %note
|
||||
.dc.l 4
|
||||
.dc.l 8
|
||||
.dc.l 8
|
||||
.dc.l 16
|
||||
.dc.l 0x100
|
||||
.asciz "$1"
|
||||
.asciz "GA$3p1"
|
||||
.8byte 0x104
|
||||
.8byte 0x108
|
||||
|
||||
.dc.l 12
|
||||
.dc.l 14
|
||||
.dc.l 0
|
||||
.dc.l 0x100
|
||||
.asciz "$gcc 7.0.1"
|
||||
|
||||
.dc.l 3
|
||||
.asciz "GA$gcc 7.0.1"
|
||||
.dc.b 0,0
|
||||
|
||||
.dc.l 5
|
||||
.dc.l 0
|
||||
.dc.l 0x100
|
||||
.dc.b 0x21, 0x2, 0
|
||||
.dc.b 0
|
||||
.dc.b 0x47, 0x41, 0x21, 0x2, 0
|
||||
.dc.b 0,0,7
|
||||
|
||||
.dc.l 4
|
||||
.dc.l 8
|
||||
.dc.l 6
|
||||
.dc.l 16
|
||||
.dc.l 0x101
|
||||
.dc.b 0x2a, 0x7, 1, 0
|
||||
.dc.b 0x47, 0x41, 0x2a, 0x7, 1, 0
|
||||
.dc.b 0,0
|
||||
.8byte 0x104
|
||||
.8byte 0x106
|
||||
|
||||
.dc.l 4
|
||||
.dc.l 6
|
||||
.dc.l 0
|
||||
.dc.l 0x100
|
||||
.dc.b 0x2a, 0x6, 0, 0
|
||||
.dc.b 0x47, 0x41, 0x2a, 0x6, 0, 0
|
||||
.dc.b 0,0
|
||||
.popsection
|
||||
|
||||
|
||||
|
|
@ -78,15 +94,17 @@ note3.s:
|
|||
.dc.l 0x100
|
||||
|
||||
.pushsection .gnu.build.attributes, "0x100000", %note
|
||||
.dc.l 4
|
||||
.dc.l 8
|
||||
.dc.l 8
|
||||
.dc.l 16
|
||||
.dc.l 0x100
|
||||
.asciz "$1"
|
||||
.asciz "GA$3p1"
|
||||
.8byte 0x108
|
||||
.8byte 0x10b
|
||||
|
||||
.dc.l 12
|
||||
.dc.l 14
|
||||
.dc.l 0
|
||||
.dc.l 0x100
|
||||
.asciz "$gcc 7.0.1"
|
||||
.asciz "GA$gcc 7.0.1"
|
||||
.dc.b 0,0
|
||||
|
||||
.popsection
|
||||
|
|
|
|||
|
|
@ -7,12 +7,12 @@
|
|||
#...
|
||||
Displaying notes found in: .gnu.build.attributes
|
||||
[ ]+Owner[ ]+Data size[ ]+Description
|
||||
[ ]+GA\$<version>2p1[ ]+0x0000000.[ ]+OPEN[ ]+Applies to region from 0x100 to 0x122 \(note_1.s\)
|
||||
[ ]+GA\$<tool>gcc 6.3.1 20161221[ ]+0x00000000[ ]+OPEN[ ]+Applies to region from 0x100 to 0x122
|
||||
[ ]+GA\*GOW:0x700[ ]+0x00000000[ ]+OPEN[ ]+Applies to region from 0x100 to 0x122
|
||||
[ ]+GA\$<version>3p1[ ]+0x0000000.[ ]+OPEN[ ]+Applies to region from 0x100 to 0x122 \(note_1.s\)
|
||||
[ ]+GA\*<stack prot>off[ ]+0x00000000[ ]+OPEN[ ]+Applies to region from 0x100 to 0x122
|
||||
[ ]+GA\*FORTIFY:0xff[ ]+0x00000000[ ]+OPEN[ ]+Applies to region from 0x100 to 0x122
|
||||
[ ]+GA\$<tool>gcc 6.3.1 20161221[ ]+0x00000000[ ]+OPEN[ ]+Applies to region from 0x100 to 0x122
|
||||
[ ]+GA\*<ABI>0x[0-9a-f]+[ ]+0x00000000[ ]+OPEN[ ]+Applies to region from 0x100 to 0x122
|
||||
[ ]+GA\*<PIC>PIC[ ]+0x00000000[ ]+OPEN[ ]+Applies to region from 0x100 to 0x122
|
||||
[ ]+GA\!<short enum>false[ ]+0x00000000[ ]+OPEN[ ]+Applies to region from 0x100 to 0x122
|
||||
[ ]+GA\*<ABI>0x[0-9a-f]+[ ]+0x00000000[ ]+OPEN[ ]+Applies to region from 0x100 to 0x122
|
||||
[ ]+GA\*FORTIFY:0xff[ ]+0x00000000[ ]+OPEN[ ]+Applies to region from 0x100 to 0x122
|
||||
[ ]+GA\*GOW:0x700[ ]+0x00000000[ ]+OPEN[ ]+Applies to region from 0x100 to 0x122
|
||||
#...
|
||||
|
|
|
|||
|
|
@ -9,10 +9,11 @@ note_1.s:
|
|||
.balign 4
|
||||
|
||||
.dc.l 8
|
||||
.dc.l 4
|
||||
.dc.l 8
|
||||
.dc.l 0x100
|
||||
.asciz "GA$2p1"
|
||||
.dc.l note_1.s
|
||||
.asciz "GA$3p1"
|
||||
.dc.l 0x100 /* note_1.s */
|
||||
.dc.l 0x122 /* note_1.s end */
|
||||
|
||||
.dc.l 23
|
||||
.dc.l 0
|
||||
|
|
@ -55,4 +56,12 @@ note_1.s:
|
|||
.dc.l 0x100
|
||||
.dc.b 0x47, 0x41, 0x2a, 0x6, 0xf2, 0x3, 0x38, 0xee, 0xce, 0xfa, 0x5e, 0x3c, 0
|
||||
.dc.b 0, 0, 0
|
||||
|
||||
.dc.l 5
|
||||
.dc.l 0
|
||||
.dc.l 0x100
|
||||
.dc.b 0x47, 0x41, 0x21, 0x8, 0
|
||||
.dc.b 0, 0, 0
|
||||
|
||||
|
||||
.popsection
|
||||
|
|
|
|||
|
|
@ -7,12 +7,12 @@
|
|||
#...
|
||||
Displaying notes found in: .gnu.build.attributes
|
||||
[ ]+Owner[ ]+Data size[ ]+Description
|
||||
[ ]+GA\$<version>2p1[ ]+0x0000000.[ ]+OPEN[ ]+Applies to region from 0x100 to 0x122 \(note_1.s\)
|
||||
[ ]+GA\$<tool>gcc 6.3.1 20161221[ ]+0x00000000[ ]+OPEN[ ]+Applies to region from 0x100 to 0x122
|
||||
[ ]+GA\*GOW:0x700[ ]+0x00000000[ ]+OPEN[ ]+Applies to region from 0x100 to 0x122
|
||||
[ ]+GA\$<version>3p1[ ]+0x00000010[ ]+OPEN[ ]+Applies to region from 0x100 to 0x122 \(note_1.s\)
|
||||
[ ]+GA\*<stack prot>off[ ]+0x00000000[ ]+OPEN[ ]+Applies to region from 0x100 to 0x122
|
||||
[ ]+GA\*FORTIFY:0xff[ ]+0x00000000[ ]+OPEN[ ]+Applies to region from 0x100 to 0x122
|
||||
[ ]+GA\$<tool>gcc 6.3.1 20161221[ ]+0x00000000[ ]+OPEN[ ]+Applies to region from 0x100 to 0x122
|
||||
[ ]+GA\*<ABI>0x[0-9a-f]+[ ]+0x00000000[ ]+OPEN[ ]+Applies to region from 0x100 to 0x122
|
||||
[ ]+GA\*<PIC>PIC[ ]+0x00000000[ ]+OPEN[ ]+Applies to region from 0x100 to 0x122
|
||||
[ ]+GA\!<short enum>false[ ]+0x00000000[ ]+OPEN[ ]+Applies to region from 0x100 to 0x122
|
||||
[ ]+GA\*<ABI>0x[0-9a-f]+[ ]+0x00000000[ ]+OPEN[ ]+Applies to region from 0x100 to 0x122
|
||||
[ ]+GA\*FORTIFY:0xff[ ]+0x00000000[ ]+OPEN[ ]+Applies to region from 0x100 to 0x122
|
||||
[ ]+GA\*GOW:0x700[ ]+0x00000000[ ]+OPEN[ ]+Applies to region from 0x100 to 0x122
|
||||
#...
|
||||
|
|
|
|||
|
|
@ -9,10 +9,11 @@ note_1.s:
|
|||
.balign 4
|
||||
|
||||
.dc.l 8
|
||||
.dc.l 8
|
||||
.dc.l 16
|
||||
.dc.l 0x100
|
||||
.asciz "GA$2p1"
|
||||
.8byte note_1.s
|
||||
.asciz "GA$3p1"
|
||||
.8byte 0x100 /* note_1.s */
|
||||
.8byte 0x122 /* note_1 end */
|
||||
|
||||
.dc.l 23
|
||||
.dc.l 0
|
||||
|
|
@ -55,4 +56,11 @@ note_1.s:
|
|||
.dc.l 0x100
|
||||
.dc.b 0x47, 0x41, 0x2a, 0x6, 0xf2, 0x3, 0x38, 0xee, 0xce, 0xfa, 0x5e, 0x3c, 0
|
||||
.dc.b 0, 0, 0
|
||||
|
||||
.dc.l 6
|
||||
.dc.l 0
|
||||
.dc.l 0x100
|
||||
.dc.b 0x47, 0x41, 0x2a, 0x7, 0x2, 0
|
||||
.dc.b 0, 0
|
||||
|
||||
.popsection
|
||||
|
|
|
|||
|
|
@ -8,12 +8,12 @@
|
|||
Displaying notes found in: .gnu.build.attributes
|
||||
[ ]+Owner[ ]+Data size[ ]+Description
|
||||
[ ]+GA\$<version>3p3[ ]+0x00000008[ ]+OPEN[ ]+Applies to region from 0x10. to 0x110 \(note_4.s\)
|
||||
[ ]+GA\$<tool>gcc 7.2.1 20170915[ ]+0x00000000[ ]+OPEN[ ]+Applies to region from 0x10. to 0x110
|
||||
[ ]+GA\*GOW:0x700[ ]+0x00000000[ ]+OPEN[ ]+Applies to region from 0x10. to 0x110
|
||||
[ ]+GA\*<stack prot>off[ ]+0x00000000[ ]+OPEN[ ]+Applies to region from 0x10. to 0x110
|
||||
[ ]+GA\*FORTIFY:0xff[ ]+0x00000000[ ]+OPEN[ ]+Applies to region from 0x10. to 0x110
|
||||
[ ]+GA\$<tool>gcc 7.2.1 20170915[ ]+0x00000000[ ]+OPEN[ ]+Applies to region from 0x10. to 0x110
|
||||
[ ]+GA\*<ABI>0x[0-9a-f]+[ ]+0x00000000[ ]+OPEN[ ]+Applies to region from 0x10. to 0x110
|
||||
[ ]+GA\*<PIC>PIC[ ]+0x00000000[ ]+OPEN[ ]+Applies to region from 0x10. to 0x110
|
||||
[ ]+GA\!<short enum>false[ ]+0x00000000[ ]+OPEN[ ]+Applies to region from 0x10. to 0x110
|
||||
[ ]+GA\*<ABI>0x[0-9a-f]+[ ]+0x00000000[ ]+OPEN[ ]+Applies to region from 0x10. to 0x110
|
||||
[ ]+GA\*FORTIFY:0xff[ ]+0x00000000[ ]+OPEN[ ]+Applies to region from 0x10. to 0x110
|
||||
[ ]+GA\*GOW:0x700[ ]+0x00000000[ ]+OPEN[ ]+Applies to region from 0x10. to 0x110
|
||||
[ ]+GA\*<stack prot>strong[ ]+0x00000008[ ]+func[ ]+Applies to region from 0x10. to 0x10c.*
|
||||
#...
|
||||
|
|
|
|||
|
|
@ -18,8 +18,8 @@ note_4.s_end:
|
|||
.dc.l 8
|
||||
.dc.l 0x100
|
||||
.asciz "GA$3p3"
|
||||
.dc.l note_4.s - 2
|
||||
.dc.l note_4.s_end
|
||||
.dc.l 0x100 /* note_4.s - 2 */
|
||||
.dc.l 0x110 /* note_4.s_end */
|
||||
|
||||
.dc.l 23
|
||||
.dc.l 0
|
||||
|
|
@ -63,12 +63,18 @@ note_4.s_end:
|
|||
.dc.b 0x47, 0x41, 0x2a, 0x6, 0xf2, 0x3, 0x38, 0xee, 0xce, 0xfa, 0x5e, 0x3c, 0
|
||||
.dc.b 0, 0, 0
|
||||
|
||||
.dc.l 5
|
||||
.dc.l 0
|
||||
.dc.l 0x100
|
||||
.dc.b 0x47, 0x41, 0x21, 0x8, 0
|
||||
.dc.b 0, 0, 0
|
||||
|
||||
.dc.l 6
|
||||
.dc.l 8
|
||||
.dc.l 0x101
|
||||
.dc.b 0x47, 0x41, 0x2a, 0x2, 0x3, 0
|
||||
.dc.b 0, 0
|
||||
.dc.l bar
|
||||
.dc.l bar_end
|
||||
.dc.l 0x108 /* bar */
|
||||
.dc.l 0x10c /* bar_end */
|
||||
|
||||
.popsection
|
||||
|
|
|
|||
|
|
@ -8,12 +8,12 @@
|
|||
Displaying notes found in: .gnu.build.attributes
|
||||
[ ]+Owner[ ]+Data size[ ]+Description
|
||||
[ ]+GA\$<version>3p3[ ]+0x00000010[ ]+OPEN[ ]+Applies to region from 0x100 to 0x120 \(note_4.s\)
|
||||
[ ]+GA\$<tool>gcc 7.2.1 20170915[ ]+0x00000000[ ]+OPEN[ ]+Applies to region from 0x100 to 0x120
|
||||
[ ]+GA\*GOW:0x700[ ]+0x00000000[ ]+OPEN[ ]+Applies to region from 0x100 to 0x120
|
||||
[ ]+GA\*<stack prot>off[ ]+0x00000000[ ]+OPEN[ ]+Applies to region from 0x100 to 0x120
|
||||
[ ]+GA\*FORTIFY:0xff[ ]+0x00000000[ ]+OPEN[ ]+Applies to region from 0x100 to 0x120
|
||||
[ ]+GA\$<tool>gcc 7.2.1 20170915[ ]+0x00000000[ ]+OPEN[ ]+Applies to region from 0x100 to 0x120
|
||||
[ ]+GA\*<ABI>0x[0-9a-f]+[ ]+0x00000000[ ]+OPEN[ ]+Applies to region from 0x100 to 0x120
|
||||
[ ]+GA\*<PIC>PIC[ ]+0x00000000[ ]+OPEN[ ]+Applies to region from 0x100 to 0x120
|
||||
[ ]+GA\!<short enum>false[ ]+0x00000000[ ]+OPEN[ ]+Applies to region from 0x100 to 0x120
|
||||
[ ]+GA\*<ABI>0x[0-9a-f]+[ ]+0x00000000[ ]+OPEN[ ]+Applies to region from 0x100 to 0x120
|
||||
[ ]+GA\*<stack prot>strong[ ]+0x00000010[ ]+func[ ]+Applies to region from 0x110 to 0x11c.*
|
||||
[ ]+GA\*FORTIFY:0xff[ ]+0x00000000[ ]+OPEN[ ]+Applies to region from 0x100 to 0x120
|
||||
[ ]+GA\*GOW:0x700[ ]+0x00000000[ ]+OPEN[ ]+Applies to region from 0x100 to 0x120
|
||||
[ ]+GA\*<stack prot>strong[ ]+0x00000010[ ]+func[ ]+Applies to region from 0x110 to 0x120.*
|
||||
#...
|
||||
|
|
|
|||
|
|
@ -22,8 +22,8 @@ note_4.s_end:
|
|||
.dc.l 16
|
||||
.dc.l 0x100
|
||||
.asciz "GA$3p3"
|
||||
.8byte note_4.s - 2
|
||||
.8byte note_4.s_end
|
||||
.8byte 0x100 /* note_4.s - 2 */
|
||||
.8byte 0x120 /* note_4.s_end */
|
||||
|
||||
.dc.l 23
|
||||
.dc.l 0
|
||||
|
|
@ -67,12 +67,18 @@ note_4.s_end:
|
|||
.dc.b 0x47, 0x41, 0x2a, 0x6, 0xf2, 0x3, 0x38, 0xee, 0xce, 0xfa, 0x5e, 0x3c, 0
|
||||
.dc.b 0, 0, 0
|
||||
|
||||
.dc.l 6
|
||||
.dc.l 0
|
||||
.dc.l 0x100
|
||||
.dc.b 0x47, 0x41, 0x2a, 0x7, 0x2, 0
|
||||
.dc.b 0, 0
|
||||
|
||||
.dc.l 6
|
||||
.dc.l 16
|
||||
.dc.l 0x101
|
||||
.dc.b 0x47, 0x41, 0x2a, 0x2, 0x3, 0
|
||||
.dc.b 0, 0
|
||||
.8byte bar
|
||||
.8byte bar_end
|
||||
.8byte 0x110 /* bar */
|
||||
.8byte 0x120 /* bar_end */
|
||||
|
||||
.popsection
|
||||
|
|
|
|||
|
|
@ -0,0 +1,20 @@
|
|||
#PROG: objcopy
|
||||
#readelf: --notes --wide
|
||||
#objcopy: --merge-notes
|
||||
#name: v3 gnu build attribute note merging (32-bit)
|
||||
#source: note-6-32.s
|
||||
|
||||
#...
|
||||
Displaying notes found in: .gnu.build.attributes
|
||||
[ ]+Owner[ ]+Data size[ ]+Description
|
||||
[ ]+GA\$<version>3p1[ ]+0x00000008[ ]+OPEN[ ]+Applies to region from 0x100 to 0x106 \(note_test\)
|
||||
[ ]+GA\*<stack prot>off[ ]+0x00000000[ ]+OPEN[ ]+Applies to region from 0x100 to 0x106
|
||||
[ ]+GA\$<tool>gcc 8.3.1 20190507[ ]+0x00000000[ ]+OPEN[ ]+Applies to region from 0x100 to 0x106
|
||||
[ ]+GA\*<ABI>0x[0-9a-f]+[ ]+0x00000000[ ]+OPEN[ ]+Applies to region from 0x100 to 0x106
|
||||
[ ]+GA\*<PIC>PIC[ ]+0x00000000[ ]+OPEN[ ]+Applies to region from 0x100 to 0x106
|
||||
[ ]+GA\!<short enum>false[ ]+0x00000000[ ]+OPEN[ ]+Applies to region from 0x100 to 0x106
|
||||
[ ]+GA\*FORTIFY:0xff[ ]+0x00000000[ ]+OPEN[ ]+Applies to region from 0x100 to 0x106
|
||||
[ ]+GA\*GOW:0x700[ ]+0x00000000[ ]+OPEN[ ]+Applies to region from 0x100 to 0x106
|
||||
[ ]+GA\$<version>3p1[ ]+0x00000008[ ]+func[ ]+Applies to region from 0x102 to 0x106
|
||||
[ ]+GA\$<tool>hello world[ ]+0x00000000[ ]+func[ ]+Applies to region from 0x102 to 0x106
|
||||
#...
|
||||
|
|
@ -0,0 +1,145 @@
|
|||
.text
|
||||
.org 0x100
|
||||
.global note_test
|
||||
note_test:
|
||||
note_1_start:
|
||||
.word 0
|
||||
note_1_end:
|
||||
note_2_start:
|
||||
.word 0
|
||||
note_2_end:
|
||||
note_3_start:
|
||||
.word 0
|
||||
note_3_end:
|
||||
note_test_end:
|
||||
.size note_test, note_test_end - note_test
|
||||
|
||||
.pushsection .gnu.build.attributes, "", %note
|
||||
.balign 4
|
||||
|
||||
.dc.l 8
|
||||
.dc.l 8
|
||||
.dc.l 0x100
|
||||
.asciz "GA$3p1"
|
||||
.4byte 0x100 /* note_1_start */
|
||||
.4byte 0x102 /* note_1_end */
|
||||
|
||||
.dc.l 23
|
||||
.dc.l 0
|
||||
.dc.l 0x100
|
||||
.asciz "GA$gcc 8.3.1 20190507"
|
||||
.dc.b 0
|
||||
|
||||
.dc.l 10
|
||||
.dc.l 0
|
||||
.dc.l 0x100
|
||||
.dc.b 0x47, 0x41, 0x2a, 0x47, 0x4f, 0x57, 0, 0, 0x7, 0
|
||||
.dc.b 0, 0
|
||||
|
||||
.dc.l 6
|
||||
.dc.l 0
|
||||
.dc.l 0x100
|
||||
.dc.b 0x47, 0x41, 0x2a, 0x2, 0, 0
|
||||
.dc.b 0, 0
|
||||
|
||||
.dc.l 13
|
||||
.dc.l 0
|
||||
.dc.l 0x100
|
||||
.dc.b 0x47, 0x41, 0x2a, 0x46, 0x4f, 0x52, 0x54, 0x49, 0x46, 0x59, 0, 0xff, 0
|
||||
.dc.b 0, 0, 0
|
||||
|
||||
.dc.l 6
|
||||
.dc.l 0
|
||||
.dc.l 0x100
|
||||
.dc.b 0x47, 0x41, 0x2a, 0x7, 0x2, 0
|
||||
.dc.b 0, 0
|
||||
|
||||
.dc.l 5
|
||||
.dc.l 0
|
||||
.dc.l 0x100
|
||||
.dc.b 0x47, 0x41, 0x21, 0x8, 0
|
||||
.dc.b 0, 0, 0
|
||||
|
||||
.dc.l 13
|
||||
.dc.l 0
|
||||
.dc.l 0x100
|
||||
.dc.b 0x47, 0x41, 0x2a, 0x6, 0xf2, 0x3, 0x38, 0xee, 0xce, 0xfa, 0x5e, 0x3c, 0
|
||||
.dc.b 0, 0, 0
|
||||
|
||||
|
||||
.dc.l 8
|
||||
.dc.l 8
|
||||
.dc.l 0x100
|
||||
.asciz "GA$3p1"
|
||||
.4byte 0x102 /* note_2_start */
|
||||
.4byte 0x106 /* note_3_end */
|
||||
|
||||
.dc.l 23
|
||||
.dc.l 0
|
||||
.dc.l 0x100
|
||||
.asciz "GA$gcc 8.3.1 20190507"
|
||||
.dc.b 0
|
||||
|
||||
.dc.l 10
|
||||
.dc.l 0
|
||||
.dc.l 0x100
|
||||
.dc.b 0x47, 0x41, 0x2a, 0x47, 0x4f, 0x57, 0, 0, 0x7, 0
|
||||
.dc.b 0, 0
|
||||
|
||||
.dc.l 6
|
||||
.dc.l 0
|
||||
.dc.l 0x100
|
||||
.dc.b 0x47, 0x41, 0x2a, 0x2, 0, 0
|
||||
.dc.b 0, 0
|
||||
|
||||
.dc.l 13
|
||||
.dc.l 0
|
||||
.dc.l 0x100
|
||||
.dc.b 0x47, 0x41, 0x2a, 0x46, 0x4f, 0x52, 0x54, 0x49, 0x46, 0x59, 0, 0xff, 0
|
||||
.dc.b 0, 0, 0
|
||||
|
||||
.dc.l 6
|
||||
.dc.l 0
|
||||
.dc.l 0x100
|
||||
.dc.b 0x47, 0x41, 0x2a, 0x7, 0x2, 0
|
||||
.dc.b 0, 0
|
||||
|
||||
.dc.l 5
|
||||
.dc.l 0
|
||||
.dc.l 0x100
|
||||
.dc.b 0x47, 0x41, 0x21, 0x8, 0
|
||||
.dc.b 0, 0, 0
|
||||
|
||||
.dc.l 13
|
||||
.dc.l 0
|
||||
.dc.l 0x100
|
||||
.dc.b 0x47, 0x41, 0x2a, 0x6, 0xf2, 0x3, 0x38, 0xee, 0xce, 0xfa, 0x5e, 0x3c, 0
|
||||
.dc.b 0, 0, 0
|
||||
|
||||
|
||||
.dc.l 8
|
||||
.dc.l 8
|
||||
.dc.l 0x101
|
||||
.asciz "GA$3p1"
|
||||
.4byte 0x102 /* note_2_start */
|
||||
.4byte 0x104 /* note_2_end */
|
||||
|
||||
.dc.l 16
|
||||
.dc.l 0
|
||||
.dc.l 0x101
|
||||
.asciz "GA$hello world"
|
||||
|
||||
|
||||
.dc.l 8
|
||||
.dc.l 8
|
||||
.dc.l 0x101
|
||||
.asciz "GA$3p1"
|
||||
.4byte 0x104 /* note_3_start */
|
||||
.4byte 0x106 /* note_3_end */
|
||||
|
||||
.dc.l 16
|
||||
.dc.l 0
|
||||
.dc.l 0x101
|
||||
.asciz "GA$hello world"
|
||||
|
||||
.popsection
|
||||
|
|
@ -0,0 +1,20 @@
|
|||
#PROG: objcopy
|
||||
#readelf: --notes --wide
|
||||
#objcopy: --merge-notes
|
||||
#name: v3 gnu build attribute note merging (64-bit)
|
||||
#source: note-6-64.s
|
||||
|
||||
#...
|
||||
Displaying notes found in: .gnu.build.attributes
|
||||
[ ]+Owner[ ]+Data size[ ]+Description
|
||||
[ ]+GA\$<version>3p1[ ]+0x00000010[ ]+OPEN[ ]+Applies to region from 0x100 to 0x106 \(note_test\)
|
||||
[ ]+GA\*<stack prot>off[ ]+0x00000000[ ]+OPEN[ ]+Applies to region from 0x100 to 0x106
|
||||
[ ]+GA\$<tool>gcc 8.3.1 20190507[ ]+0x00000000[ ]+OPEN[ ]+Applies to region from 0x100 to 0x106
|
||||
[ ]+GA\*<ABI>0x[0-9a-f]+[ ]+0x00000000[ ]+OPEN[ ]+Applies to region from 0x100 to 0x106
|
||||
[ ]+GA\*<PIC>PIC[ ]+0x00000000[ ]+OPEN[ ]+Applies to region from 0x100 to 0x106
|
||||
[ ]+GA\!<short enum>false[ ]+0x00000000[ ]+OPEN[ ]+Applies to region from 0x100 to 0x106
|
||||
[ ]+GA\*FORTIFY:0xff[ ]+0x00000000[ ]+OPEN[ ]+Applies to region from 0x100 to 0x106
|
||||
[ ]+GA\*GOW:0x700[ ]+0x00000000[ ]+OPEN[ ]+Applies to region from 0x100 to 0x106
|
||||
[ ]+GA\$<version>3p1[ ]+0x00000010[ ]+func[ ]+Applies to region from 0x102 to 0x106
|
||||
[ ]+GA\$<tool>hello world[ ]+0x00000000[ ]+func[ ]+Applies to region from 0x102 to 0x106
|
||||
#...
|
||||
|
|
@ -0,0 +1,145 @@
|
|||
.text
|
||||
.org 0x100
|
||||
.global note_test
|
||||
note_test:
|
||||
note_1_start:
|
||||
.word 0
|
||||
note_1_end:
|
||||
note_2_start:
|
||||
.word 0
|
||||
note_2_end:
|
||||
note_3_start:
|
||||
.word 0
|
||||
note_3_end:
|
||||
note_test_end:
|
||||
.size note_test, note_test_end - note_test
|
||||
|
||||
.pushsection .gnu.build.attributes, "", %note
|
||||
.balign 4
|
||||
|
||||
.dc.l 8
|
||||
.dc.l 16
|
||||
.dc.l 0x100
|
||||
.asciz "GA$3p1"
|
||||
.8byte 0x100 /* note_1_start */
|
||||
.8byte 0x102 /* note_1_end */
|
||||
|
||||
.dc.l 23
|
||||
.dc.l 0
|
||||
.dc.l 0x100
|
||||
.asciz "GA$gcc 8.3.1 20190507"
|
||||
.dc.b 0
|
||||
|
||||
.dc.l 10
|
||||
.dc.l 0
|
||||
.dc.l 0x100
|
||||
.dc.b 0x47, 0x41, 0x2a, 0x47, 0x4f, 0x57, 0, 0, 0x7, 0
|
||||
.dc.b 0, 0
|
||||
|
||||
.dc.l 6
|
||||
.dc.l 0
|
||||
.dc.l 0x100
|
||||
.dc.b 0x47, 0x41, 0x2a, 0x2, 0, 0
|
||||
.dc.b 0, 0
|
||||
|
||||
.dc.l 13
|
||||
.dc.l 0
|
||||
.dc.l 0x100
|
||||
.dc.b 0x47, 0x41, 0x2a, 0x46, 0x4f, 0x52, 0x54, 0x49, 0x46, 0x59, 0, 0xff, 0
|
||||
.dc.b 0, 0, 0
|
||||
|
||||
.dc.l 6
|
||||
.dc.l 0
|
||||
.dc.l 0x100
|
||||
.dc.b 0x47, 0x41, 0x2a, 0x7, 0x2, 0
|
||||
.dc.b 0, 0
|
||||
|
||||
.dc.l 5
|
||||
.dc.l 0
|
||||
.dc.l 0x100
|
||||
.dc.b 0x47, 0x41, 0x21, 0x8, 0
|
||||
.dc.b 0, 0, 0
|
||||
|
||||
.dc.l 13
|
||||
.dc.l 0
|
||||
.dc.l 0x100
|
||||
.dc.b 0x47, 0x41, 0x2a, 0x6, 0xf2, 0x3, 0x38, 0xee, 0xce, 0xfa, 0x5e, 0x3c, 0
|
||||
.dc.b 0, 0, 0
|
||||
|
||||
|
||||
.dc.l 8
|
||||
.dc.l 16
|
||||
.dc.l 0x100
|
||||
.asciz "GA$3p1"
|
||||
.8byte 0x102 /* note_2_start */
|
||||
.8byte 0x106 /* note_3_end */
|
||||
|
||||
.dc.l 23
|
||||
.dc.l 0
|
||||
.dc.l 0x100
|
||||
.asciz "GA$gcc 8.3.1 20190507"
|
||||
.dc.b 0
|
||||
|
||||
.dc.l 10
|
||||
.dc.l 0
|
||||
.dc.l 0x100
|
||||
.dc.b 0x47, 0x41, 0x2a, 0x47, 0x4f, 0x57, 0, 0, 0x7, 0
|
||||
.dc.b 0, 0
|
||||
|
||||
.dc.l 6
|
||||
.dc.l 0
|
||||
.dc.l 0x100
|
||||
.dc.b 0x47, 0x41, 0x2a, 0x2, 0, 0
|
||||
.dc.b 0, 0
|
||||
|
||||
.dc.l 13
|
||||
.dc.l 0
|
||||
.dc.l 0x100
|
||||
.dc.b 0x47, 0x41, 0x2a, 0x46, 0x4f, 0x52, 0x54, 0x49, 0x46, 0x59, 0, 0xff, 0
|
||||
.dc.b 0, 0, 0
|
||||
|
||||
.dc.l 6
|
||||
.dc.l 0
|
||||
.dc.l 0x100
|
||||
.dc.b 0x47, 0x41, 0x2a, 0x7, 0x2, 0
|
||||
.dc.b 0, 0
|
||||
|
||||
.dc.l 5
|
||||
.dc.l 0
|
||||
.dc.l 0x100
|
||||
.dc.b 0x47, 0x41, 0x21, 0x8, 0
|
||||
.dc.b 0, 0, 0
|
||||
|
||||
.dc.l 13
|
||||
.dc.l 0
|
||||
.dc.l 0x100
|
||||
.dc.b 0x47, 0x41, 0x2a, 0x6, 0xf2, 0x3, 0x38, 0xee, 0xce, 0xfa, 0x5e, 0x3c, 0
|
||||
.dc.b 0, 0, 0
|
||||
|
||||
|
||||
.dc.l 8
|
||||
.dc.l 16
|
||||
.dc.l 0x101
|
||||
.asciz "GA$3p1"
|
||||
.8byte 0x102 /* note_2_start */
|
||||
.8byte 0x104 /* note_2_end */
|
||||
|
||||
.dc.l 16
|
||||
.dc.l 0
|
||||
.dc.l 0x101
|
||||
.asciz "GA$hello world"
|
||||
|
||||
|
||||
.dc.l 8
|
||||
.dc.l 16
|
||||
.dc.l 0x101
|
||||
.asciz "GA$3p1"
|
||||
.8byte 0x104 /* note_3_start */
|
||||
.8byte 0x106 /* note_3_end */
|
||||
|
||||
.dc.l 16
|
||||
.dc.l 0
|
||||
.dc.l 0x101
|
||||
.asciz "GA$hello world"
|
||||
|
||||
.popsection
|
||||
|
|
@ -1108,10 +1108,12 @@ if [is_elf_format] {
|
|||
run_dump_test "note-2-64"
|
||||
run_dump_test "note-3-64"
|
||||
run_dump_test "note-4-64"
|
||||
run_dump_test "note-6-64"
|
||||
} else {
|
||||
run_dump_test "note-2-32"
|
||||
run_dump_test "note-3-32"
|
||||
run_dump_test "note-4-32"
|
||||
run_dump_test "note-6-32"
|
||||
}
|
||||
run_dump_test "note-5"
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue