binutils-gdb/libctf/ChangeLog
Nick Alcock 0b4fa56e07 libctf: unidentified type kinds on open are a sign of file corruption
If we see a CTF type with a kind we do not recognize in its ctt_info
during opening, we cannot skip it and continue opening the file: if the
type kind is unknown, we do not know how long its vlen is, and we cannot
have skipped past it: so if we continue reading we will almost certainly
read in part of the vlen as if it were a new ctf_type_t.

Avoid this trouble by considering unknown type kinds to be a reason to
return ECTF_CORRUPT, just like everything else that reads in type kinds
does.

libctf/
	* ctf-open.c (ctf_types): Fail when unidentified type kinds are
	seen.
2019-06-21 13:04:02 +01:00

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2019-06-19 Nick Alcock <nick.alcock@oracle.com>
* ctf-open.c (ctf_types): Fail when unidentified type kinds are
seen.
2019-06-19 Nick Alcock <nick.alcock@oracle.com>
* ctf-open.c (ctf_bufopen): Dump header offsets into the debugging
output.
2019-06-19 Nick Alcock <nick.alcock@oracle.com>
* ctf-subr.c (_PAGESIZE): Remove.
(ctf_data_alloc): Likewise.
(ctf_data_free): Likewise.
(ctf_data_protect): Likewise.
* ctf-impl.h: Remove declarations.
* ctf-create.c (ctf_update): No longer call ctf_data_protect: use
ctf_free, not ctf_data_free.
(ctf_compress_write): Use ctf_data_alloc, not ctf_alloc. Free
the buffer again on compression error.
* ctf-open.c (ctf_set_base): No longer track the size: call
ctf_free, not ctf_data_free.
(upgrade_types): Likewise. Call ctf_alloc, not ctf_data_alloc.
(ctf_bufopen): Likewise. No longer call ctf_data_protect.
2019-06-19 Nick Alcock <nick.alcock@oracle.com>
* ctf-create.c (ctf_dtd_insert): Pass on error returns from
ctf_dynhash_insert.
(ctf_dvd_insert): Likewise.
(ctf_add_generic): Likewise.
(ctf_add_variable): Likewise.
* ctf-impl.h: Adjust declarations.
2019-06-14 Alan Modra <amodra@gmail.com>
* configure: Regenerate.
2019-06-06 Nick Alcock <nick.alcock@oracle.com>
* ctf-decls.h: Include <libiberty.h>.
* ctf-lookup.c (ctf_lookup_by_name): Call xstrndup(), not strndup().
2019-06-06 Nick Alcock <nick.alcock@oracle.com>
* ctf-dump.c (ctf_dump_format_type): Cast size_t's used in printf()s.
(ctf_dump_objts): Likewise.
(ctf_dump_funcs): Likewise.
(ctf_dump_member): Likewise.
(ctf_dump_str): Likewise.
2019-06-06 Nick Alcock <nick.alcock@oracle.com>
* ctf-archive.c (arc_mmap_header): Mark fd as potentially unused.
* ctf-subr.c (ctf_data_protect): Mark both args as potentially unused.
2019-06-05 Nick Alcock <nick.alcock@oracle.com>
* ctf-archive.c (ctf_arc_write): Eschew %zi format specifier.
(ctf_arc_open_by_offset): Likewise.
* ctf-create.c (ctf_add_type): Likewise.
2019-06-04 Tom Tromey <tromey@adacore.com>
* ctf-create.c (ctf_add_encoded, ctf_add_slice)
(ctf_add_member_offset): Use CHAR_BIT, not NBBY.
2019-06-04 Nick Alcock <nick.alcock@oracle.com>
* configure.ac: Check for O_CLOEXEC.
* ctf-decls.h (O_CLOEXEC): Define (to 0), if need be.
* config.h.in: Regenerate.
* configure: Likewise.
2019-06-04 Nick Alcock <nick.alcock@oracle.com>
* qsort_r.c: Rename to...
* ctf-qsort_r.c: ... this.
(_quicksort): Define to ctf_qsort_r.
* ctf-decls.h (qsort_r): Remove.
(ctf_qsort_r): Add.
(struct ctf_qsort_arg): New, transport the real ARG and COMPAR.
(ctf_qsort_compar_thunk): Rearrange the arguments to COMPAR.
* Makefile.am (libctf_a_LIBADD): Remove.
(libctf_a_SOURCES): New, add ctf-qsort_r.c.
* ctf-archive.c (ctf_arc_write): Call ctf_qsort_r, not qsort_r.
* ctf-create.c (ctf_update): Likewise.
* configure.ac: Check for BSD versus GNU qsort_r signature.
* Makefile.in: Regenerate.
* config.h.in: Likewise.
* configure: Likewise.
2019-06-03 Nick Alcock <nick.alcock@oracle.com>
* ctf-dump.c (ctf_dump_funcs): Free in the right place.
2019-05-29 Nick Alcock <nick.alcock@oracle.com>
* Makefile.am (ZLIB): New.
(ZLIBINC): Likewise.
(AM_CFLAGS): Use them.
(libctf_a_LIBADD): New, for LIBOBJS.
* configure.ac: Check for zlib, endian.h, and qsort_r.
* ctf-endian.h: New, providing htole64 and le64toh.
* swap.h: Code style fixes.
(bswap_identity_64): New.
* qsort_r.c: New, from gnulib (with one added #include).
* ctf-decls.h: New, providing a conditional qsort_r declaration,
and unconditional definitions of MIN and MAX.
* ctf-impl.h: Use it. Do not use <sys/errno.h>.
(ctf_set_errno): Now returns unsigned long.
* ctf-util.c (ctf_set_errno): Adjust here too.
* ctf-archive.c: Use ctf-endian.h.
(ctf_arc_open_by_offset): Use memset, not bzero. Drop cts_type,
cts_flags and cts_offset.
(ctf_arc_write): Drop debugging dependent on the size of off_t.
* ctf-create.c: Provide a definition of roundup if not defined.
(ctf_create): Drop cts_type, cts_flags and cts_offset.
(ctf_add_reftype): Do not check if type IDs are below zero.
(ctf_add_slice): Likewise.
(ctf_add_typedef): Likewise.
(ctf_add_member_offset): Cast error-returning ssize_t's to size_t
when known error-free. Drop CTF_ERR usage for functions returning
int.
(ctf_add_member_encoded): Drop CTF_ERR usage for functions returning
int.
(ctf_add_variable): Likewise.
(enumcmp): Likewise.
(enumadd): Likewise.
(membcmp): Likewise.
(ctf_add_type): Likewise. Cast error-returning ssize_t's to size_t
when known error-free.
* ctf-dump.c (ctf_is_slice): Drop CTF_ERR usage for functions
returning int: use CTF_ERR for functions returning ctf_type_id.
(ctf_dump_label): Likewise.
(ctf_dump_objts): Likewise.
* ctf-labels.c (ctf_label_topmost): Likewise.
(ctf_label_iter): Likewise.
(ctf_label_info): Likewise.
* ctf-lookup.c (ctf_func_args): Likewise.
* ctf-open.c (upgrade_types): Cast to size_t where appropriate.
(ctf_bufopen): Likewise. Use zlib types as needed.
* ctf-types.c (ctf_member_iter): Drop CTF_ERR usage for functions
returning int.
(ctf_enum_iter): Likewise.
(ctf_type_size): Likewise.
(ctf_type_align): Likewise. Cast to size_t where appropriate.
(ctf_type_kind_unsliced): Likewise.
(ctf_type_kind): Likewise.
(ctf_type_encoding): Likewise.
(ctf_member_info): Likewise.
(ctf_array_info): Likewise.
(ctf_enum_value): Likewise.
(ctf_type_rvisit): Likewise.
* ctf-open-bfd.c (ctf_bfdopen): Drop cts_type, cts_flags and
cts_offset.
(ctf_simple_open): Likewise.
(ctf_bfdopen_ctfsect): Likewise. Set cts_size properly.
* Makefile.in: Regenerate.
* aclocal.m4: Likewise.
* config.h: Likewise.
* configure: Likewise.
2019-05-28 Nick Alcock <nick.alcock@oracle.com>
* configure.in: Check for bfd_section_from_elf_index.
* configure: Regenerate.
* config.h.in [HAVE_BFD_ELF]: Likewise.
* libctf/ctf_open_bfd (ctf_bfdopen_ctfsect): Use it.
abfd is potentially unused now.
2019-05-28 Nick Alcock <nick.alcock@oracle.com>
* Makefile.am: New.
* Makefile.in: Regenerated.
* config.h.in: Likewise.
* aclocal.m4: Likewise.
* configure: Likewise.
2019-05-28 Nick Alcock <nick.alcock@oracle.com>
* ctf-dump.c: New.
2019-05-28 Nick Alcock <nick.alcock@oracle.com>
* ctf-labels.c: New.
2019-05-28 Nick Alcock <nick.alcock@oracle.com>
* ctf-impl.h (_libctf_version): New declaration.
* ctf-subr.c (_libctf_version): Define it.
(ctf_version): New.
2019-05-28 Nick Alcock <nick.alcock@oracle.com>
* ctf-create.c (enumcmp): New.
(enumadd): Likewise.
(membcmp): Likewise.
(membadd): Likewise.
(ctf_add_type): Likewise.
2019-05-28 Nick Alcock <nick.alcock@oracle.com>
* ctf-lookup.c (isqualifier): New.
(ctf_lookup_by_name): Likewise.
(struct ctf_lookup_var_key): Likewise.
(ctf_lookup_var): Likewise.
(ctf_lookup_variable): Likewise.
(ctf_lookup_symbol_name): Likewise.
(ctf_lookup_by_symbol): Likewise.
(ctf_func_info): Likewise.
(ctf_func_args): Likewise.
2019-05-28 Nick Alcock <nick.alcock@oracle.com>
* ctf-decl.c: New file.
* ctf-types.c: Likewise.
* ctf-impl.h: New declarations.
2019-05-28 Nick Alcock <nick.alcock@oracle.com>
* ctf-open-bfd.c: New file.
* ctf-open.c (ctf_close): New.
* ctf-impl.h: Include bfd.h.
(ctf_file): New members ctf_data_mmapped, ctf_data_mmapped_len.
(ctf_archive_internal): New members ctfi_abfd, ctfi_data,
ctfi_bfd_close.
(ctf_bfdopen_ctfsect): New declaration.
(_CTF_SECTION): likewise.
2019-05-28 Nick Alcock <nick.alcock@oracle.com>
* ctf-archive.c: New.
* ctf-impl.h (ctf_archive_internal): New type.
(ctf_arc_open_internal): New declaration.
(ctf_arc_bufopen): Likewise.
(ctf_arc_close_internal): Likewise.
2019-05-28 Nick Alcock <nick.alcock@oracle.com>
* ctf-open.c: New file.
* swap.h: Likewise.
2019-05-28 Nick Alcock <nick.alcock@oracle.com>
* ctf-create.c: New file.
* ctf-lookup.c: New file.
2019-05-28 Nick Alcock <nick.alcock@oracle.com>
* ctf-impl.h: New definitions and declarations for type creation
and lookup.
2019-05-28 Nick Alcock <nick.alcock@oracle.com>
* ctf-hash.c: New file.
* ctf-impl.h: New declarations.
2019-05-28 Nick Alcock <nick.alcock@oracle.com>
* ctf-error.c: New file.
2019-05-28 Nick Alcock <nick.alcock@oracle.com>
* ctf-util.c: New file.
* elf.h: Likewise.
* ctf-impl.h: Include it, and add declarations.
2019-05-28 Nick Alcock <nick.alcock@oracle.com>
* ctf-impl.h: New file.
* ctf-subr.c: New file.
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