This update is primarily bug fixes in C++ symbol demangling, including:
- rvalue reference
- builtin type auto and decltype(auto)
- revamped support for function return types
- formatting fixes
- omit void when its the only param
- ref-qualifiers and others in function types
- type qualifiers in pointer-to-member function types
- incorrect handling regarding CV-qualifiers in function types
- ref-qualifier found in nested-name
- properly handle <name> ::= <substitute><template-args>
- make sure that nested function name is not a substitute candidate
- correctly handle expression in template args
- skip unknown substitution abbreviations
MFC after: 4 days
This is not fully fleshed out but is sufficient to dump the
SHT_MIPS_ABIFLAGS used in FreeBSD.
Reviewed by: imp
MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D8241
Highlights of changes between r3490 and r3520:
- Improve C++ demangling
- Improve compatibility with Binutils tools wrt. error messages
- Handle additional types/sections/etc. in readelf and elfdump
- addr2line, cxxfilt: use setvbuf to set line buffering for filter use
PR: 218395
MFC after: 2 weeks
Relnotes: Yes
Sponsored by: The FreeBSD Foundation
FreeBSD uses the full target triple when generating embedded rootfs images
(MFS_IMAGE= make option). Without this change objcopy errors out with:
objcopy: elf64-poewrpc-freebsd: invalid target name
MFC after: 2 weeks
dwarf_attrval_*() will search the parent DIE referenced by a
DW_AT_abstract_origin attribute for the value of the DW_AT_type attribute.
Do the same thing for the DW_AT_specification attributes in variable
definitions emitted by GCC 6.2, and ensure that we return an error rather
than crashing if neither DW_AT_abstract_origin or DW_AT_specification is
found when looking for the value of the DW_AT_type attribute.
PR: 215350, 215395
Reviewed by: emaste
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D8920
Fixed a bug that the PE object section names are generated incorrectly
using the section name table found in the original input ELF object
instead of the intermediate ELF object.
Ticket: #541
Do not try to copy section content from a NULL d_buf when creating
uninitialized data COFF section for PE object.
Ticket: #540
Obtained from: ELF Tool Chain r3507, r3508
MFC after: 1 week
Needed for 'readelf -l' of extended phnum files. (Parity with GNU
binutils.)
Reviewed by: no one, unfortunately
Sponsored by: Dell EMC Isilon
Differential Revision: https://reviews.freebsd.org/D8703
Extended numbering is used for any of these fields overflowing.
Reviewed by: emaste@
Sponsored by: Dell EMC Isilon
Differential Revision: https://reviews.freebsd.org/D8701
Include the SHN_UNDEF (zero) index special section in extended-attribute
ELF files, like GNU binutils' readelf.
Additionally, print "<no-name>" for sections without names, like GNU
binutils.
Reviewed by: kaiw@
Sponsored by: Dell EMC Isilon
Differential Revision: https://reviews.freebsd.org/D8707
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
Previously a command like "strings f1 f2 f3" reported the exit status
based only on processing the last file.
As with GNU strings, report an error exit status if an error was
encountered processing any of the files. While here simplify the
exit status handling to just success (0) / failure (1).
Reviewed by: brooks
MFC after: 1 month
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D8334
The mode of operation (elfcopy, mcs, or strip) is chosen based on the
program name. Broaden this to allow a substring match at the end of the
name to allow prefixes - for example, bsdstrip or aarch64-freebsd-strip.
This improves use of these tools as drop-in replacements for GNU objcopy
and strip, which are often built with a limited set of supported targets
and installed with a target prefix for cross tools.
Reviewed by: dim
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D1663
Improvements include:
* readelf: report all relocation types in rel/rela for MIPS N64
* readelf: add ELFOSABI_ARM_AEABI
* elfdump: add ELFOSABI_ARM_AEABI and ELFOSABI_ARM
* Add recent RISC-V relocations
* elfcopy: use elftc_timestamp, to support SOURCE_DATE_EPOCH
Sponsored by: The FreeBSD Foundation
This fixes build failures on older releases that lack various
definitions such as EM_AARCH64 (which was unfixed before this).
Revert all of the recent compatibility changes that worked around this
problem.
This uses the same method of using the in-tree header as lib/libelf,
lib/libdwarf and usr.bin/readelf.
Reviewed by: emaste
Sponsored by: EMC / Isilon Storage Division
Differential Revision: https://reviews.freebsd.org/D6734
This fixes a EFI/PE header issue that prevented elfcopy-produced .efi
files from working with Secure Boot:
Make sure section raw size is always padded to multiple of
FileAlignment from the optional header, as requested by the PE
specification. This change should reduce the diff between PE image
generated by Binutils objcopy and elftoolchain elfcopy.
Submitted by: kaiw
Reported by: ambrisko
Improvements include:
* Add support for reporting and handling a number of new constants in
various tools, including:
* CloudABI OSABI
* DT_TLSDESC_*
* i386, MIPS, SPARC and amd64 relocations
* C++ demangler bug fixes
* Man page updates
* Improved input validation in several tools
This update also reduces diffs against upstream as a number of fixes
included in upstream were previously cherry-picked into FreeBSD.
Sponsored by: The FreeBSD Foundation
Fix a symbol table handling bug in elfcopy: elfcopy puts .symtab,
.strtab and .shstrtab sections in the end of the output object. If
the input objects have more sections after any of these 3 sections,
the section table will be reordered, and in that case the section
symbols should be regenerated for relocations.
The bug is triggered since newer clang puts .strtab section in the
beginning of the object produced.
Ticket: #525
Reported by: royger
Obtained from: ELF Tool Chain r3443
Merge ELF Tool Chain r3434:
Previously, elfcopy defines:
VMA: section virtual address
LMA: PHDR(p_vaddr)
While binutils(libbfd) defines:
VMA: section virtual address and PHDR(p_vaddr).
LMA: PHDR(p_paddr)
For elfcopy, p_paddr is considered not meaningful and is always set
to the same value as p_vaddr.
elfcopy was implemented that way because I thought p_paddr is not
used/meaningful according to the ELF ABI. However it turned out
p_paddr is at least used in some ELF files, e.g. the FreeBSD kernel.
This change made elfcopy treat p_paddr as LMA, same as libbfd.
(However, some VMA/LMA related command line option still need tweaking
to make them compatible with binutils objcopy. This will be improved
later)
Ticket: #524
And typo fixes in r3435 and r3436.
This fixes the Xen kernel build.
Submitted by: kaiw
Tested by: royger
An empty debug link target previously returned a confusing and incorrect
error like "objcopy: fread failed: No error: 0". Now, return an explicit
error.
GNU objcopy allows an empty file as the debug link target. However,
that case is nonsensical so diverging from GNU behaviour is fine.
Reviewed by: bdrewery
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D5541
If the output object is not an ELF file, choose an arbitrary ELF format
for the intermediate file. srec, ihex and binary formats are independent
of class, endianness and machine type so these choices do not affect the
output.
ELF Tool Chain ticket #517
Reviewed by: kai
Obtained from: ELF Tool Chain r3411
Some notable improvements include:
readelf:
- Add AArch64 relocation definitions.
- Report value of unknown relocation types.
elfcopy:
- Consider symbols with STB_GNU_UNIQUE binding as global symbols.
- Fixed support for VMA adjustment for loadable sections found
in relocatable objects.
- Handle nameless global symbols.
- Improve wildcard matching for !-prefixed symbols.
- Add PE/COFF support.
elfdump:
- Improve section type reporting.
- Add MIPS-specific section types.
This update also includes a significant number of bug fixes.
PR: 207091 [exp-run]
Sponsored by: The FreeBSD Foundation
