[Bug 250702] c++filt crashes on a symbol representing a C++ lambda function
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=250702 Dimitry Andric changed: What|Removed |Added Resolution|--- |FIXED Status|In Progress |Closed -- You are receiving this mail because: You are the assignee for the bug. ___ freebsd-toolchain@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-toolchain To unsubscribe, send any mail to "freebsd-toolchain-unsubscr...@freebsd.org"
[Bug 250702] c++filt crashes on a symbol representing a C++ lambda function
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=250702 --- Comment #28 from commit-h...@freebsd.org --- A commit references this bug: Author: dim Date: Wed Dec 2 21:39:58 UTC 2020 New revision: 368285 URL: https://svnweb.freebsd.org/changeset/base/368285 Log: MFC r367304: Add WITH_LLVM_CXXFILT option to install llvm-cxxfilt as c++filt Since elftoolchain's cxxfilt is rather far behind on features, and we ran into several bugs, add an option to use llvm-cxxfilt as an drop-in replacement. It supports the same options as elftoolchain cxxfilt, though it doesn't have support for old ARM (C++ Annotated Reference Manual, not the CPU) and GNU v2 manglings. But these are irrelevant in 2020. Note: as we already compile the required libraries as part of libllvm, this will not add any significant build time either. PR: 250702 Reviewed by: emaste, yuri Differential Revision: https://reviews.freebsd.org/D27071 MFC r367712: Ensure make delete-old does not unlink the llvm-cxxfilt and its manpage, after r367304 and r367324, when WITH_LLVM_CXXFILT is enabled. Noticed by: "Herbert J. Skuhra" Changes: _U stable/11/ stable/11/share/man/man5/src.conf.5 stable/11/share/mk/src.opts.mk stable/11/tools/build/mk/OptionalObsoleteFiles.inc stable/11/tools/build/options/WITHOUT_LLVM_CXXFILT stable/11/tools/build/options/WITH_LLVM_CXXFILT stable/11/usr.bin/Makefile stable/11/usr.bin/clang/Makefile stable/11/usr.bin/clang/llvm-cxxfilt/Makefile _U stable/12/ stable/12/share/man/man5/src.conf.5 stable/12/share/mk/src.opts.mk stable/12/tools/build/mk/OptionalObsoleteFiles.inc stable/12/tools/build/options/WITHOUT_LLVM_CXXFILT stable/12/tools/build/options/WITH_LLVM_CXXFILT stable/12/usr.bin/Makefile stable/12/usr.bin/clang/Makefile stable/12/usr.bin/clang/llvm-cxxfilt/Makefile -- You are receiving this mail because: You are the assignee for the bug. ___ freebsd-toolchain@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-toolchain To unsubscribe, send any mail to "freebsd-toolchain-unsubscr...@freebsd.org"
[Bug 250702] c++filt crashes on a symbol representing a C++ lambda function
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=250702 --- Comment #27 from commit-h...@freebsd.org --- A commit references this bug: Author: dim Date: Sun Nov 8 00:00:49 UTC 2020 New revision: 367467 URL: https://svnweb.freebsd.org/changeset/base/367467 Log: MFC r367323: Update libcxxrt's private copy of elftoolchain demangler This updates the private copy of libelftc_dem_gnu3.c in libcxxrt with the most recent version from upstream r3877. Similar to r367322, this fixes a number of possible assertions, and allows it to correctly demangle several names that it could not handle before. PR: 250702 MFC r367337: Make vector-related functions in libcxxrt's demangler static Follow-up to r367323 by re-adding static to a number of the functions copied from elftc's libelftc_vstr.c. This was requested by upstream. PR: 250702 Changes: _U stable/11/ stable/11/contrib/libcxxrt/libelftc_dem_gnu3.c -- You are receiving this mail because: You are the assignee for the bug. ___ freebsd-toolchain@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-toolchain To unsubscribe, send any mail to "freebsd-toolchain-unsubscr...@freebsd.org"
[Bug 250702] c++filt crashes on a symbol representing a C++ lambda function
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=250702 --- Comment #26 from commit-h...@freebsd.org --- A commit references this bug: Author: dim Date: Sun Nov 8 00:00:49 UTC 2020 New revision: 367467 URL: https://svnweb.freebsd.org/changeset/base/367467 Log: MFC r367323: Update libcxxrt's private copy of elftoolchain demangler This updates the private copy of libelftc_dem_gnu3.c in libcxxrt with the most recent version from upstream r3877. Similar to r367322, this fixes a number of possible assertions, and allows it to correctly demangle several names that it could not handle before. PR: 250702 MFC r367337: Make vector-related functions in libcxxrt's demangler static Follow-up to r367323 by re-adding static to a number of the functions copied from elftc's libelftc_vstr.c. This was requested by upstream. PR: 250702 Changes: _U stable/11/ stable/11/contrib/libcxxrt/libelftc_dem_gnu3.c -- You are receiving this mail because: You are the assignee for the bug. ___ freebsd-toolchain@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-toolchain To unsubscribe, send any mail to "freebsd-toolchain-unsubscr...@freebsd.org"
[Bug 250702] c++filt crashes on a symbol representing a C++ lambda function
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=250702 --- Comment #25 from commit-h...@freebsd.org --- A commit references this bug: Author: dim Date: Sat Nov 7 23:58:01 UTC 2020 New revision: 367466 URL: https://svnweb.freebsd.org/changeset/base/367466 Log: Sync up elftoolchain with head, except for the capsicum-related commits, which are incompatible with stable/11. MFC r308465 (by emaste): c++filt: flush output after newline Some tools spawn c++filt and pass it a single line at a time for demangling. This is akin to r276689 for addr2line. Sponsored by: The FreeBSD Foundation MFC r317626 (by emaste): revert r308465: c++filt: flush output after newline The ELF Tool Chain update to r3520 uses setvbuf to set line buffering. Sponsored by: The FreeBSD Foundation MFC r340746 (by oshogbo): strings: fix style nits Reviewed by: cem, emaste, Joseph Koshy Differential Revision:https://reviews.freebsd.org/D18036 MFC r340750 (by mjg): strings: unbreak the build after r340746 Discussed with: oshogbo Sponsored by: The FreeBSD Foundation MFC r342918 (by emaste): Update to ELF Tool Chain r3668 Highlights: - Make sure that only TLS sections are sorted into TLS segment. - Fixed multiple errors in "Section to Segment mapping". - Man page updates - ar improvements - elfcopy: avoid filter_reloc uninitialized variable for rela - elfcopy: avoid stripping relocations from static binaries - readelf: avoid printing directory in front of absolute path - readelf: add NT_FREEBSD_FEATURE_CTL FreeBSD note type - test improvements NOTES: Some of these changes originated in FreeBSD and simply reduce diffs between contrib and vendor. ELF Tool Chain ar is not (currently) used in FreeBSD, and there are improvements in both FreeBSD and ELF Tool Chain ar that are not in the other. Sponsored by: The FreeBSD Foundation MFC r343592 (by emaste): readelf: decode flag bits in DT_FLAGS/DT_FLAGS_1 Decode d_val when the tag is DT_FLAGS or DT_FLAGS_1 based on the information at: https://docs.oracle.com/cd/E23824_01/html/819-0690/chapter6-42444.html PR: 232983 Submitted by: Bora Ozarslan borako.ozars...@gmail.com Sponsored by: The FreeBSD Foundation Differential Revision:https://reviews.freebsd.org/D18784 MFC r343593 (by emaste): readelf: fix i386 build Use %jx and (uintmax_t) cast. PR: 232983 Sponsored by: The FreeBSD Foundation MFC r343614 (by emaste): readelf: dump elf note data Output format is compatible with GNU readelf's handling of unknown note types (modulo a GNU char signedness bug); future changes will add type- specific decoding. Reviewed by: kib Relnotes: Yes Sponsored by: The FreeBSD Foundation MFC r343665 (by emaste): readelf: use table-based DT_FLAGS and DT_FLAGS_1 decoding Fewer lines of code and more maintainable. Reviewed by: brooks, kib Sponsored by: The FreeBSD Foundation Differential Revision:https://reviews.freebsd.org/D19053 MFC r343669 (by emaste): readelf: decode FreeBSD note types Decode NT_FREEBSD_ABI_TAG, NT_FREEBSD_ARCH_TAG, and NT_FREEBSD_FEATURE_CTL. Reviewed by: brooks, kib (earlier) Relnotes: Yes Sponsored by: The FreeBSD Foundation Differential Revision:https://reviews.freebsd.org/D19054 MFC r345360 (by oshogbo): strings: do not depend on stdin Instead of depending on one stdin FILE structure and use freopen(3), pass to the functions appropriate FILE structure. Reviewed by: cem Discussed with: emaste Differential Revision:https://reviews.freebsd.org/D18037 MFC r345361 (by oshogbo): strings: do not continue if getc or getcharacter returns EOF Reported by: cem MFC r345362 (by oshogbo): Fix powerpc and arm builds after r345361. Reported by: jenkins MFC r345364 (by oshogbo): In case of ENCODING_8BIT the EOF code will be pass to putchar. EOF check should be done before (uint8_t)c > 127 test. Reported by: cem MFC r345431 (by oshogbo): strings: return an error code and the char value separately If we returning 32 bits value it's hard to distinguish if the returned value is a valid one or if its an error (in case of EOF). For that reason separate exit code of the function from the returned character. Reported by: cem, se MFC r345593 (by markj): Prepend DW_AT_comp_dir to relative line number directory table entries. Relative directories may appear in the line number program for a CPU if files were included via a relative path, for instance with "-I.". Previously, dwarf_srclines(3) and dwarf_srcfiles(3) would return the relative path, so addr2line, for instance, would do the same. However, we can get an absolute path by prepending the compilation directory, so change libdwarf to do that to improve compatibility with GNU binutils and since it is more useful in
[Bug 250702] c++filt crashes on a symbol representing a C++ lambda function
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=250702 --- Comment #23 from commit-h...@freebsd.org --- A commit references this bug: Author: dim Date: Sat Nov 7 19:57:20 UTC 2020 New revision: 367463 URL: https://svnweb.freebsd.org/changeset/base/367463 Log: MFC r367323: Update libcxxrt's private copy of elftoolchain demangler This updates the private copy of libelftc_dem_gnu3.c in libcxxrt with the most recent version from upstream r3877. Similar to r367322, this fixes a number of possible assertions, and allows it to correctly demangle several names that it could not handle before. PR: 250702 MFC r367337: Make vector-related functions in libcxxrt's demangler static Follow-up to r367323 by re-adding static to a number of the functions copied from elftc's libelftc_vstr.c. This was requested by upstream. PR: 250702 Changes: _U stable/12/ stable/12/contrib/libcxxrt/libelftc_dem_gnu3.c -- You are receiving this mail because: You are the assignee for the bug. ___ freebsd-toolchain@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-toolchain To unsubscribe, send any mail to "freebsd-toolchain-unsubscr...@freebsd.org"
[Bug 250702] c++filt crashes on a symbol representing a C++ lambda function
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=250702 --- Comment #24 from commit-h...@freebsd.org --- A commit references this bug: Author: dim Date: Sat Nov 7 19:57:20 UTC 2020 New revision: 367463 URL: https://svnweb.freebsd.org/changeset/base/367463 Log: MFC r367323: Update libcxxrt's private copy of elftoolchain demangler This updates the private copy of libelftc_dem_gnu3.c in libcxxrt with the most recent version from upstream r3877. Similar to r367322, this fixes a number of possible assertions, and allows it to correctly demangle several names that it could not handle before. PR: 250702 MFC r367337: Make vector-related functions in libcxxrt's demangler static Follow-up to r367323 by re-adding static to a number of the functions copied from elftc's libelftc_vstr.c. This was requested by upstream. PR: 250702 Changes: _U stable/12/ stable/12/contrib/libcxxrt/libelftc_dem_gnu3.c -- You are receiving this mail because: You are the assignee for the bug. ___ freebsd-toolchain@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-toolchain To unsubscribe, send any mail to "freebsd-toolchain-unsubscr...@freebsd.org"
[Bug 250702] c++filt crashes on a symbol representing a C++ lambda function
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=250702 --- Comment #22 from commit-h...@freebsd.org --- A commit references this bug: Author: dim Date: Sat Nov 7 19:55:07 UTC 2020 New revision: 367462 URL: https://svnweb.freebsd.org/changeset/base/367462 Log: Sync up elftoolchain with head, except for the capsicum-related commits, which are incompatible with stable/12. MFC r345360 (by oshogbo): strings: do not depend on stdin Instead of depending on one stdin FILE structure and use freopen(3), pass to the functions appropriate FILE structure. Reviewed by: cem Discussed with: emaste Differential Revision:https://reviews.freebsd.org/D18037 MFC r345361 (by oshogbo): strings: do not continue if getc or getcharacter returns EOF Reported by: cem MFC r345362 (by oshogbo): Fix powerpc and arm builds after r345361. Reported by: jenkins MFC r345364 (by oshogbo): In case of ENCODING_8BIT the EOF code will be pass to putchar. EOF check should be done before (uint8_t)c > 127 test. Reported by: cem MFC r345431 (by oshogbo): strings: return an error code and the char value separately If we returning 32 bits value it's hard to distinguish if the returned value is a valid one or if its an error (in case of EOF). For that reason separate exit code of the function from the returned character. Reported by: cem, se MFC r346323 (by emaste): readelf: speed up readelf -wo Use an array instead of STAILQ, and sort at the end instead of while adding new elements. PR: 212539 Submitted by: Bora ?zarslan Reviewed by: markj Sponsored by: The FreeBSD Foundation MFC r346327 (by emaste): readelf: use size_t for object counts PR: 212539 Reported by: cem Sponsored by: The FreeBSD Foundation MFC r348776 (by csjp): Teach readelf about some OpenBSD ELF program headers - Add constants for OpenBSD wxneeded, bootdata and randomize to the FreeBSD elf_common.h file. This is the file that gets used by the elftoolchain library. - Update readelf and elfdump utilities to decode these program headers if they are encountered. Note: FreeBSD has it's own version of elfdump(1), which will be updated in a subsequent commit. I am adding it here anyway because this diff is going to be submitted upstream. Discussed with: emaste Reviewed by: imp MFC afer: 2 weeks Differential Revision:https://reviews.freebsd.org/D20548 Mcontrib/elftoolchain/elfdump/elfdump.c Mcontrib/elftoolchain/readelf/readelf.c Msys/sys/elf_common.h MFC r349510 (by luporl): [PowerPC64] readelf: print description for 'e_flags' in ELF header (ABI type) This prints out description text with the meaning of 'Flags' value in PowerPC64. Example: $ readelf -h ~/tmp/t1-Flag2 ELF Header: Magic: 7f 45 4c 46 02 02 01 09 00 00 00 00 00 00 00 00 Class: ELF64 Data: 2's complement, big endian Version: 1 (current) OS/ABI:FreeBSD ABI Version: 0 Type: EXEC (Executable file) Machine: PowerPC 64-bit Version: 0x1 Entry point address: 0x1001 Start of program headers: 64 (bytes into file) Start of section headers: 209368 (bytes into file) Flags: 0x2, OpenPOWER ELF V2 ABI Size of this header: 64 (bytes) Size of program headers: 56 (bytes) Number of program headers: 10 Size of section headers: 64 (bytes) Number of section headers: 34 Section header string table index: 31 Submitted by: alfredo.junior_eldorado.org.br Reviewed by: luporl Differential Revision:https://reviews.freebsd.org/D20782 MFC r350511 (by emaste): readelf: decode NT_GNU_PROPERTY_TYPE_0 / GNU_PROPERTY_X86_FEATURE_1_AND These bits are used for Intel CET IBT/Shadow Stack. Sponsored by: The FreeBSD Foundation Differential Revision:https://reviews.freebsd.org/D20516 MFC r354544 (by emaste): elfcopy/strip: Ensure sections have required alignment on output Object files may specify insufficient alignment on certain sections, for example due to a bug in NASM[1]. When we detect that case in elfcopy or strip, emit a warning and increase the alignment to the minimum required. The NASM bug was fixed in 2015[2], but we might as well have this fixup (and warning) in elfcopy in case we encounter such a file for any other reason. This might be reworked somewhat upstream - see ELF Tool Chain ticket 485[3]. [1] https://bugzilla.nasm.us/show_bug.cgi?id=3392307 [2] https://repo.or.cz/w/nasm.git/commit/1f0cb0f2c1ba632c0fab02424928cfb756a9160c [3] https://sourceforge.net/p/elftoolchain/tickets/485/
[Bug 250702] c++filt crashes on a symbol representing a C++ lambda function
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=250702 --- Comment #21 from commit-h...@freebsd.org --- A commit references this bug: Author: dim Date: Wed Nov 4 17:51:10 UTC 2020 New revision: 367337 URL: https://svnweb.freebsd.org/changeset/base/367337 Log: Make vector-related functions in libcxxrt's demangler static Follow-up to r367323 by re-adding static to a number of the functions copied from elftc's libelftc_vstr.c. This was requested by upstream. PR: 250702 MFC after:3 days Changes: head/contrib/libcxxrt/libelftc_dem_gnu3.c -- You are receiving this mail because: You are the assignee for the bug. ___ freebsd-toolchain@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-toolchain To unsubscribe, send any mail to "freebsd-toolchain-unsubscr...@freebsd.org"
[Bug 250702] c++filt crashes on a symbol representing a C++ lambda function
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=250702 Dimitry Andric changed: What|Removed |Added Flags||mfc-stable12+, ||mfc-stable11+ Status|New |In Progress --- Comment #20 from Dimitry Andric --- The original assertions in elftoolchain cxxfilt have been patched as much as possible, though it still does not support unnamed types or lambdas. An option has been added to replace c++filt with llvm-cxxfilt, and this option has been turned on by default for -CURRENT. If this causes no trouble, I will MFC all the changes to stable/11 and stable/12. -- You are receiving this mail because: You are the assignee for the bug. ___ freebsd-toolchain@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-toolchain To unsubscribe, send any mail to "freebsd-toolchain-unsubscr...@freebsd.org"
[Bug 250702] c++filt crashes on a symbol representing a C++ lambda function
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=250702 --- Comment #19 from commit-h...@freebsd.org --- A commit references this bug: Author: dim Date: Wed Nov 4 11:23:20 UTC 2020 New revision: 367324 URL: https://svnweb.freebsd.org/changeset/base/367324 Log: Turn on WITH_LLVM_CXXFILT by default LLVM's demangler supports more modern C++ constructs such as lambdas and unnamed types, and is actively maintained. The command line tool is usable as a drop-in replacement for GNU c++filt, or elftoolchain's cxxfilt. The latter is still available by using WITHOUT_LLVM_CXXFILT, if needed. PR: 250702 MFC after:2 weeks Changes: head/share/man/man5/src.conf.5 head/share/mk/src.opts.mk -- You are receiving this mail because: You are the assignee for the bug. ___ freebsd-toolchain@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-toolchain To unsubscribe, send any mail to "freebsd-toolchain-unsubscr...@freebsd.org"
[Bug 250702] c++filt crashes on a symbol representing a C++ lambda function
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=250702 --- Comment #18 from commit-h...@freebsd.org --- A commit references this bug: Author: dim Date: Wed Nov 4 11:13:36 UTC 2020 New revision: 367323 URL: https://svnweb.freebsd.org/changeset/base/367323 Log: Update libcxxrt's private copy of elftoolchain demangler This updates the private copy of libelftc_dem_gnu3.c in libcxxrt with the most recent version from upstream r3877. Similar to r367322, this fixes a number of possible assertions, and allows it to correctly demangle several names that it could not handle before. PR: 250702 MFC after:3 days Changes: head/contrib/libcxxrt/libelftc_dem_gnu3.c -- You are receiving this mail because: You are the assignee for the bug. ___ freebsd-toolchain@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-toolchain To unsubscribe, send any mail to "freebsd-toolchain-unsubscr...@freebsd.org"
[Bug 250702] c++filt crashes on a symbol representing a C++ lambda function
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=250702 --- Comment #17 from commit-h...@freebsd.org --- A commit references this bug: Author: dim Date: Wed Nov 4 11:02:05 UTC 2020 New revision: 367322 URL: https://svnweb.freebsd.org/changeset/base/367322 Log: Merge elftoolchain r3877 (by jkoshy): Incorporate fixes from Dimitry Andric: - Use a BUFFER_GROW() macro to avoid rounding errors in capacity calculations. - Fix a bug introduced in [r3531]. - Fix handling of nested template parameters. Ticket: #581 This should fix a number of assertions on elftoolchain's cxxfilt, and allow it to correctly demangle several names that it could not handle before. Obtained from:https://sourceforge.net/p/elftoolchain/code/3877/ PR: 250702 MFC after:3 days Changes: head/contrib/elftoolchain/libelftc/_libelftc.h head/contrib/elftoolchain/libelftc/libelftc_dem_gnu3.c head/contrib/elftoolchain/libelftc/libelftc_vstr.c -- You are receiving this mail because: You are the assignee for the bug. ___ freebsd-toolchain@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-toolchain To unsubscribe, send any mail to "freebsd-toolchain-unsubscr...@freebsd.org"
[Bug 250702] c++filt crashes on a symbol representing a C++ lambda function
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=250702 --- Comment #16 from commit-h...@freebsd.org --- A commit references this bug: Author: dim Date: Tue Nov 3 19:57:30 UTC 2020 New revision: 367304 URL: https://svnweb.freebsd.org/changeset/base/367304 Log: Add WITH_LLVM_CXXFILT option to install llvm-cxxfilt as c++filt Since elftoolchain's cxxfilt is rather far behind on features, and we ran into several bugs, add an option to use llvm-cxxfilt as an drop-in replacement. It supports the same options as elftoolchain cxxfilt, though it doesn't have support for old ARM (C++ Annotated Reference Manual, not the CPU) and GNU v2 manglings. But these are irrelevant in 2020. Note: as we already compile the required libraries as part of libllvm, this will not add any significant build time either. PR: 250702 Reviewed by: emaste, yuri Differential Revision: https://reviews.freebsd.org/D27071 MFC after:2 weeks Changes: head/share/man/man5/src.conf.5 head/share/mk/src.opts.mk head/tools/build/options/WITHOUT_LLVM_CXXFILT head/tools/build/options/WITH_LLVM_CXXFILT head/usr.bin/Makefile head/usr.bin/clang/Makefile head/usr.bin/clang/llvm-cxxfilt/Makefile -- You are receiving this mail because: You are the assignee for the bug. ___ freebsd-toolchain@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-toolchain To unsubscribe, send any mail to "freebsd-toolchain-unsubscr...@freebsd.org"
[Bug 250702] c++filt crashes on a symbol representing a C++ lambda function
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=250702 --- Comment #15 from Ed Maste --- (In reply to Dimitry Andric from comment #14) > That said, it might be more future-proof if we import libcxxabi from > the llvm project into contrib, and start building that, at least > for its demangler support. Indeed, I've thought about doing that at least for c++filt even if we don't use it for the C++ runtime. We already have a copy of the libcxxabi demangler being used in lldb. That said it's still worth fixing as many of the elftc demangler issues as we can. -- You are receiving this mail because: You are the assignee for the bug. ___ freebsd-toolchain@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-toolchain To unsubscribe, send any mail to "freebsd-toolchain-unsubscr...@freebsd.org"
[Bug 250702] c++filt crashes on a symbol representing a C++ lambda function
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=250702 --- Comment #14 from Dimitry Andric --- (In reply to Yuri Victorovich from comment #13) Yes, the elftoolchain demangler misses a few more modern features, and its development does not seem very active. (Not necessarily for the other parts of elftoolchain such as libelf, btw.) That said, with the fixes I've proposed for upstream, only the lambda examples don't demangle correctly, but the rest does. E.g. I now get: _ZZ5func1vENK3$_0clEv -> func1()::$_0::operator()() const _ZZN7WebCore19SVGAnimatedProperty20LookupOrCreateHelperINS_32SVGAnimatedStaticPropertyTearOffIbEEbLb1EE21lookupOrCreateWrapperEPNS_10SVGElementEPKNS_15SVGPropertyInfoERbE19__PRETTY_FUNCTION__ -> WebCore::SVGAnimatedProperty::LookupOrCreateHelper, bool, true>::lookupOrCreateWrapper(WebCore::SVGElement*, WebCore::SVGPropertyInfo const*, bool&)::__PRETTY_FUNCTION__ _ZNSt3__116__copy_unalignedINS_6vectorIbNS_9allocatorIbLb0EEENS_14__bit_iteratorIT_Lb0EXLi0NS5_IS6_XT0_EXLi0S8_S7_ -> std::__1::__bit_iterator std::__1::__copy_unaligned >, false>(std::__1::__bit_iterator, 0>, std::__1::__bit_iterator, 0>, std::__1::__bit_iterator) _ZZN10half_float6detail15half2float_implEjfNSt3__117integral_constantIbLb114exponent_table -> half_float::detail::half2float_impl(unsigned int, float, std::__1::integral_constant)::exponent_table So the remaining one is: _ZZN9libunwind17LocalAddressSpace18findUnwindSectionsEjRNS_18UnwindInfoSectionsEENUlP12dl_phdr_infojPvE_8__invokeES4_jS5_ That said, it might be more future-proof if we import libcxxabi from the llvm project into contrib, and start building that, at least for its demangler support. At some point it might even replace libcxxrt, or serve as a drop-in replacement. -- You are receiving this mail because: You are the assignee for the bug. ___ freebsd-toolchain@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-toolchain To unsubscribe, send any mail to "freebsd-toolchain-unsubscr...@freebsd.org"
[Bug 250702] c++filt crashes on a symbol representing a C++ lambda function
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=250702 --- Comment #13 from Yuri Victorovich --- On this testcase c++filt doesn't assert but doesn't decode the symbol either: _ZNSt3__116__copy_unalignedINS_6vectorIbNS_9allocatorIbLb0EEENS_14__bit_iteratorIT_Lb0EXLi0NS5_IS6_XT0_EXLi0S8_S7_ c++filt from the binutils package does decode it correctly. Overall c++filt from the base is quite far behind of the c++filt from the binutils package in terms of stability and symbol support. -- You are receiving this mail because: You are the assignee for the bug. ___ freebsd-toolchain@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-toolchain To unsubscribe, send any mail to "freebsd-toolchain-unsubscr...@freebsd.org"
[Bug 250702] c++filt crashes on a symbol representing a C++ lambda function
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=250702 --- Comment #12 from Yuri Victorovich --- Here is another symbol that causes the assertion: _ZZN10half_float6detail15half2float_implEjfNSt3__117integral_constantIbLb114exponent_table (from the object file merge-dequantize-operators.cpp.o from the port misc/nn-insight). This one is not for a lambda function. -- You are receiving this mail because: You are the assignee for the bug. ___ freebsd-toolchain@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-toolchain To unsubscribe, send any mail to "freebsd-toolchain-unsubscr...@freebsd.org"
[Bug 250702] c++filt crashes on a symbol representing a C++ lambda function
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=250702 Yuri Victorovich changed: What|Removed |Added Summary|c++filt crashes on a|c++filt crashes on a symbol |particular symbol |representing a C++ lambda ||function -- You are receiving this mail because: You are the assignee for the bug. ___ freebsd-toolchain@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-toolchain To unsubscribe, send any mail to "freebsd-toolchain-unsubscr...@freebsd.org"
