Age | Commit message (Collapse) | Author | Files | Lines |
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Patch from Rui Ueyama, who says:
libbacktrace occasionally fails to decompress compressed debug info
even though the sections contain valid zlib streams. The cause of the
issue is an off-by-one error.
If a zlib data block is a plain data (uncompressed data), the next two
bytes contain the size of the block. These two bytes value is byte-
aligned, so if we read-ahead more than 8 bits, we need to unread it.
So, the correct condition to determine whether or not we need to
unread a byte is bits >= 8 and not bits > 8. Due to this error,
if the last read bits happened to end at a byte boundary, the next
byte would be skipped. That caused the decompression failure.
This bug was originally reported against the mold linker.
rui314/mold#402
* elf.c (elf_zlib_inflate): Don't skip initial aligned byte in
uncompressed block.
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* dwarf.c (find_address_ranges): Handle skeleton units.
(read_function_entry): Likewise.
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When I added the fields in 2019-12-13 I forgot to initialize them.
* dwarf.c (build_address_map): Initialize DWARF 5 fields of unit.
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* `-Werror` can cause issues when a more recent version of GCC compiles
an older version:
- https://bugs.gentoo.org/229059
- https://bugs.gentoo.org/475350
- https://bugs.gentoo.org/667104
libatomic/ChangeLog:
* configure.ac: Support --disable-werror.
* configure: Regenerate.
libbacktrace/ChangeLog:
* configure.ac: Support --disable-werror.
* configure: Regenerate.
libgomp/ChangeLog:
* configure.ac: Support --disable-werror.
* configure: Regenerate.
libitm/ChangeLog:
* configure.ac: Support --disable-werror.
* configure: Regenerate.
libsanitizer/ChangeLog:
* configure.ac: Support --disable-werror.
* aclocal.m4: Include also ../config/warnings.m4.
* libbacktrace/Makefile.am (WARN_FLAGS): Remove.
* configure: Regenerate.
* Makefile.in: Regenerate.
* asan/Makefile.in: Regenerate.
* hwasan/Makefile.in: Regenerate.
* interception/Makefile.in: Regenerate.
* libbacktrace/Makefile.in: Regenerate.
* lsan/Makefile.in: Regenerate.
* sanitizer_common/Makefile.in: Regenerate.
* tsan/Makefile.in: Regenerate.
* ubsan/Makefile.in: Regenerate.
Co-Authored-By: Jakub Jelinek <jakub@redhat.com>
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Do this separately from all other Copyright updates, as ChangeLog files
can be modified only separately.
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On non-ELF targets, the Makefile needs a newline inside the sed REPLACE
string. The way it is currently done fails with GNU Make < 4, but GCC
only requires "GNU make version 3.80 (or later)".
The portable solution is given in the autoconf manual:
https://www.gnu.org/software/autoconf/manual/autoconf-2.69/html_node/Newlines-in-Make-Rules.html
libbacktrace/ChangeLog:
PR libbacktrace/103822
* Makefile.am: Fix newline.
* Makefile.in: Regenerate.
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Fix issues mentioned in the PR.
PR libbacktrace/103167
libbacktrace/ChangeLog:
* elf.c (elf_uncompress_lzma_block): Cast to unsigned int.
(elf_uncompress_lzma): Likewise.
* xztest.c (test_samples): memcpy only if v > 0.
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PR testsuite/102742
libbacktrace/ChangeLog:
* btest.c (MIN_DESCRIPTOR): New.
(MAX_DESCRIPTOR): Likewise.
(check_available_files): Likewise.
(check_open_files): Check only file descriptors that
were not available at the entry.
(main): Call check_available_files.
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On LANG=ru_RU.UTF-8 'b2test_buildid' test fails due to localized readelf
output:
$ LANG=ru_RU.UTF-8 readelf -n b2test | fgrep 4e37e8f
ID сборки: 4e37e8fead8d6e8b0a9dc95ea25cd784dff3a393
$ LANG=C readelf -n b2test | fgrep 4e37e8f
Build ID: 4e37e8fead8d6e8b0a9dc95ea25cd784dff3a393
libbacktrace/
* install-debuginfo-for-buildid.sh.in: Force non-localized readelf
output with LANG=C.
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libbacktrace/ChangeLog:
2021-06-28 Clément Chigot <clement.chigot@atos.net>
* xcoff.c (SSUBTYP_DWRNGES): New define.
(xcoff_add): Use correct XCOFF DWARF section subtype
for DEBUG_RANGES. Remove lineoff workaround.
Adjust base_address.
(xcoff_initialize_syminfo): Adapt to new base_address.
(xcoff_lookup_pc): Likewise.
(xcoff_initialize_fileline): Likewise.
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Check if host supports multi-byte NOPs before enabling CET on host.
gcc/
PR bootstrap/99703
* configure: Regenerated.
libbacktrace/
PR bootstrap/99703
* configure: Regenerated.
libcc1/
PR bootstrap/99703
* configure: Regenerated.
libcpp/
PR bootstrap/99703
* configure: Regenerated.
libdecnumber/
PR bootstrap/99703
* configure: Regenerated.
lto-plugin/
PR bootstrap/99703
* configure: Regenerated.
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It's no longer necessary as file 0 is now set up in all cases.
* dwarf.c (read_line_program): Don't special case file 0.
(read_function_entry): Likewise.
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PR libbacktrace/98818
* dwarf.c (dwarf_buf_error): Add errnum parameter. Change all
callers.
* backtrace.h: Update backtrace_error_callback comment.
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* configure.ac: Check for objcopy --add-gnu-debuglink by using
objcopy --help.
* configure: Regenerate
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* Makefile.am (%_dwz): If dwz fails, use uncompressed debug info.
* Makefile.in: Regenerate.
* configure: Regenerate.
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PR debug/98716
* dwarf.c (read_v2_paths): Allocate zero entry for dirs and
filenames.
(read_line_program): Remove parameter u, change caller. Don't
subtract one from dirs and filenames index.
(read_function_entry): Don't subtract one from filenames index.
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ChangeLog:
* libtool.m4: Match gnu* along other GNU systems.
* libgo/config/libtool.m4: Match gnu* along other GNU systems.
* libgo/configure: Re-generate.
libffi/
* configure: Re-generate.
libgomp/
* configure: Re-generate.
gcc/
* configure: Re-generate.
libatomic/
* configure: Re-generate.
libbacktrace/
* configure: Re-generate.
libcc1/
* configure: Re-generate.
libgfortran/
* configure: Re-generate.
libgomp/
* configure: Re-generate.
libhsail-rt/
* configure: Re-generate.
libitm/
* configure: Re-generate.
libobjc/
* configure: Re-generate.
liboffloadmic/
* configure: Re-generate.
* plugin/configure: Re-generate.
libphobos/
* configure: Re-generate.
libquadmath/
* configure: Re-generate.
libsanitizer/
* configure: Re-generate.
libssp/
* configure: Re-generate.
libstdc++-v3/
* configure: Re-generate.
libvtv/
* configure: Re-generate.
lto-plugin/
* configure: Re-generate.
zlib/
* configure: Re-generate.
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Do this separately from all other Copyright updates, as ChangeLog files
can be modified only separately.
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The change in major version (and the increment from Darwin19 to 20)
caused libtool tests to fail which resulted in incorrect build settings
for shared libraries.
We take this opportunity to sort out the shared undefined symbols state
rather than propagating the current unsound behaviour into a new rev.
This change means that we default to the case that missing symbols are
considered an error, and if one wants to allow this intentionally, the
confiuration for that case should be set appropriately.
Three existing cases need undefined dynamic lookup:
libitm, where there is already a configuration mechanism to add the
flags.
libcc1, where we add simple configuration to add the flags for Darwin.
libsanitizer, where we can add to the existing extra flags.
libcc1/ChangeLog:
PR target/97865
* Makefile.am: Add dynamic_lookup to LD flags for Darwin.
* configure.ac: Test for Darwin host and set a flag.
* Makefile.in: Regenerate.
* configure: Regenerate.
libitm/ChangeLog:
PR target/97865
* configure.tgt: Add dynamic_lookup to XLDFLAGS for Darwin.
* configure: Regenerate.
libsanitizer/ChangeLog:
PR target/97865
* configure.tgt: Add dynamic_lookup to EXTRA_CXXFLAGS for
Darwin.
* configure: Regenerate.
ChangeLog:
PR target/97865
* libtool.m4: Update handling of Darwin platform link flags
for Darwin20.
gcc/ChangeLog:
PR target/97865
* configure: Regenerate.
libatomic/ChangeLog:
PR target/97865
* configure: Regenerate.
libbacktrace/ChangeLog:
PR target/97865
* configure: Regenerate.
libffi/ChangeLog:
PR target/97865
* configure: Regenerate.
libgfortran/ChangeLog:
PR target/97865
* configure: Regenerate.
libgomp/ChangeLog:
PR target/97865
* configure: Regenerate.
libhsail-rt/ChangeLog:
PR target/97865
* configure: Regenerate.
libobjc/ChangeLog:
PR target/97865
* configure: Regenerate.
libphobos/ChangeLog:
PR target/97865
* configure: Regenerate.
libquadmath/ChangeLog:
PR target/97865
* configure: Regenerate.
libssp/ChangeLog:
PR target/97865
* configure: Regenerate.
libstdc++-v3/ChangeLog:
PR target/97865
* configure: Regenerate.
libvtv/ChangeLog:
PR target/97865
* configure: Regenerate.
zlib/ChangeLog:
PR target/97865
* configure: Regenerate.
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* dwarf.c (resolve_string): Use > rather than >= to check whether
string index extends past buffer.
(resolve_addr_index): Similarly for address index.
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This change adds the +nodefaultrpath ld option to remove all library
paths that were specified with the -L option from the embedded path.
2020-11-29 John David Anglin <danglin@gcc.gnu.org>
ChangeLog:
* libtool.m4 (archive_cmds): Add +nodefaultrpath ld option on
hppa64-*-hpux11*.
libatomic/ChangeLog:
* configure: Regenerate.
libbacktrace/ChangeLog:
* configure: Regenerate.
libcc1/ChangeLog:
* configure: Regenerate.
libffi/ChangeLog:
* configure: Regenerate.
libgfortran/ChangeLog:
* configure: Regenerate.
libgomp/ChangeLog:
* configure: Regenerate.
libhsail-rt/ChangeLog:
* configure: Regenerate.
libitm/ChangeLog:
* configure: Regenerate.
libobjc/ChangeLog:
* configure: Regenerate.
liboffloadmic/ChangeLog:
* configure: Regenerate.
* plugin/configure: Regenerate.
libquadmath/ChangeLog:
* configure: Regenerate.
libsanitizer/ChangeLog:
* configure: Regenerate.
libssp/ChangeLog:
* configure: Regenerate.
libstdc++-v3/ChangeLog:
* configure: Regenerate.
libvtv/ChangeLog:
* configure: Regenerate.
lto-plugin/ChangeLog:
* configure: Regenerate.
zlib/ChangeLog:
* configure: Regenerate.
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Use an attribute rather than a comment when falling through a switch case.
* internal.h (ATTRIBUTE_FALLTHROUGH): Define.
* elf.c (elf_zlib_inflate): Use ATTRIBUTE_FALLTHROUGH.
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libbacktrace/ChangeLog:
PR libbacktrace/97082
* Makefile.am (check_DATA): Add mtest.dSYM if USE_DSYMUTIL.
* Makefile.in: Regenerate.
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libbacktrace/ChangeLog:
PR libbacktrace/97227
* configure.ac (USE_DSYMUTIL): Define instead of HAVE_DSYMUTIL.
* Makefile.am: Change all uses of HAVE_DSYMUTIL to USE_DSYMUTIL.
* configure: Regenerate.
* Makefile.in: Regenerate.
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* dwarf.c (report_inlined_functions): Handle PC == -1 and PC ==
p->low.
(dwarf_lookup_pc): Likewise.
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PR libbacktrace/97080
* fileline.c (backtrace_syminfo_to_full_callback): New function.
(backtrace_syminfo_to_full_error_callback): New function.
* elf.c (elf_nodebug): Call syminfo_fn if possible.
* internal.h (struct backtrace_call_full): Define.
(backtrace_syminfo_to_full_callback): Declare.
(backtrace_syminfo_to_full_error_callback): Declare.
* mtest.c (f3): Only check all[i] if data.index permits.
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