* dwarf.c (fetch_indexed_string): Do not use length of first table
in string section as the length of every table in the section.
* testsuite/binutils-all/pr26112.r: Update expected output.
Commit 04f096fb9e ("Move the xc16x target to the obsolete list") moved
the architecture from the "obsolete but still available" to the
"obsolete / support removed" list in config.bfd, making the architecture
impossible to enable (except maybe via "enable everything" options").
Note that I didn't touch */po/*.po{,t} on the assumption that these
would be updated by some (half)automatic means.
For clang compiled objects with dwarf-5, location list offset address dump
under DW_AT_location is corrected, where DW_FORM_loclistx is used. While
dumping the location list offset, the address dumped is wrong where it was
refering to .debug_addr instead of .debug_loclists
* dwarf.c (fetch_indexed_value): Add base_address as parameter and
use it to access the section offset.
(read_and_display_attr_value): Handle DW_FORM_loclistx form separately.
Pass loclists_base to fetch_indexed_value().
* dwarf.c (fetch_indexed_string): Added new parameter
str_offsets_base to calculate the string offset.
(read_and_display_attr_value): Read DW_AT_str_offsets_base
attribute.
(process_debug_info): While allocating memory and initializing
debug_information, do it for do_debug_info also, if its true.
(load_separate_debug_files): Load .debug_str_offsets if exists.
* dwarf.h (struct debug_info): Add str_offsets_base field.
Using xmalloc makes the null check redundant since failing allocation
will exit the program. Instead use malloc and let the error be
conveyed up the call chain.
* dwarf.h (struct debug_info): Add rnglists_base field.
* dwarf.c (read_and_display_attr_value): Read attribute DW_AT_rnglists_base.
(display_debug_rnglists_list): While handling DW_RLE_base_addressx,
DW_RLE_startx_endx, DW_RLE_startx_length items, pass the proper parameter
value to fetch_indexed_addr(), i.e. fetch the proper entry in .debug_addr section.
(display_debug_ranges): Add rnglists_base to the .debug_rnglists base address.
(load_separate_debug_files): Load .debug_addr section, if exists.
PR 29250
binutils/
* dwarf.c (display_debug_frames): Set col_type[reg] on sizing
pass over FDE to cie->col_type[reg] if CIE specifies reg.
Handle DW_CFA_restore and DW_CFA_restore_extended on second
pass using the same logic. Remove unnecessary casts. Don't
call frame_need_space on second pass over FDE.
gas/
* testsuite/gas/i386/ehinterp.d,
* testsuite/gas/i386/ehinterp.s: New test.
* testsuite/gas/i386/i386.exp: Run it.
git commit 202be274a4 went a little wild in removing trailing spaces
in gas/testsuite/gas/i386/{secidx.d,secrel.d}, causing
x86_64-w64-mingw32 +FAIL: i386 secrel reloc
x86_64-w64-mingw32 +FAIL: i386 secidx reloc
I could have just replaced the trailing space, but let's fix the
objdump output instead. Touches lots of testsuite files.
Requiring C99 means that uses of bfd_uint64_t can be replaced with
uint64_t, and similarly for bfd_int64_t, BFD_HOST_U_64_BIT, and
BFD_HOST_64_BIT. This patch does that, removes #ifdef BFD_HOST_*
and tidies a few places that print 64-bit values.
The fix here is to pass "section" down to read_and_display_attr_value.
The test in read_and_display_attr_value is a little bit of hardening.
PR 29171
* dwarf.c (display_debug_macro, display_debug_names): Pass section
to read_and_display_attr_value2.
(read_and_display_attr_value): Don't attempt to check for .dwo
section name when section is NULL.
* dwarf.c (dwarf_select_sections_by_names): Return zero if no
sections were selected.
(dwarf_select_sections_by_letters): Likewise.
* dwarf.h: (dwarf_select_sections_by_names): Update prototype.
(dwarf_select_sections_by_letters): Update prototype.
* objdump.c (might_need_separate_debug_info): New function.
(dump_bfd): Call new function before attempting to load separate
debug info files.
(main): Do not enable dwarf section dumping for -WK or -WN.
* readelf.c (parse_args): Do not enable dwarf section dumping for
-wK or -wN.
(might_need_separate_debug_info): New function.
(process_object): Call new function before attempting to load
separate debug info files.
* testsuite/binutils-all/debuginfo.exp: Expect -WE and -wE
debuginfod tests to pass.
* testsuite/binutils-all/objdump.Wk: Add extra regexps.
* testsuite/binutils-all/readelf.k: Add extra regexps.
Fill the timestamp field suitably for _bfd_XXi_only_swap_filehdr_out().
Instead of re-arranging the present if(), fold this logic with that of
copying the optional header.
PR 29135
* nm.c (non_weak): New variable.
(filter_symbols): When non-weak is true, ignore weak symbols.
(long_options): Add --no-weak.
(usage): Mention --no-weak.
(main): Handle -W/--no-weak.
* doc/binutils.texi: Document new feature.
* NEWS: Mention the new feature.
* testsuite/binutils-all/nm.exp: Add test of new feature.
* testsuite/binutils-all/no-weak.s: New test source file.
As before, on sufficiently old glibc this conflicts with a global
identifier in the library headers. While there also zap the unusual
padding by blanks.
PR 29072
bfd * elflink.c (bfd_elf_size_dynamic_sections): Display a note to the
user that the current ehaviour of creating an executable stack
because of a missing .note.GNU-stack section is deprecated and
will be changed in a future release.
binutils* testsuite/lib/binutils-common.exp (prune_warnings_extra): Filter
out notes about the executable stacjk behaviour beign deprecated.
ld * testsuite/ld-elf/pr29072.b.warn: Update to include the note
about the linker's behaviour being depreccated.
Formalise what ought to be obvious. The top level of the binutils-gdb
repository isn't owned by binutils.
* MAINTAINERS: Spelling fix. GDB global maintainer rights.
PR 28981
* dwarf.c (fetch_indexed_value): Rename to fecth_indexed_addr and
return the address, rather than a string.
(fetch_indexed_value): New function - returns a value indexed by a
DW_FORM_loclistx or DW_FORM_rnglistx form.
(read_and_display_attr_value): Add support for DW_FORM_loclistx
and DW_FORM_rnglistx.
(process_debug_info): Load the loclists and rnglists sections.
(display_loclists_list): Add support for DW_LLE_base_addressx,
DW_LLE_startx_endx, DW_LLE_startx_length and
DW_LLE_default_location.
(display_offset_entry_loclists): New function. Displays a
.debug_loclists section that contains offset entry tables.
(display_debug_loc): Call the new function.
(display_debug_rnglists_list): Add support for
DW_RLE_base_addressx, DW_RLE_startx_endx and DW_RLE_startx_length.
(display_debug_ranges): Display the contents of the section's
header.
* dwarf.h (struct debug_info): Add loclists_base field.
* testsuite/binutils-all/dw5.W: Update expected output.
* testsuite/binutils-all/x86-64/pr26808.dump: Likewise.
This commit adds the _option_ of having disassembler output syntax
highlighted in objdump. This option is _off_ by default. The new
command line options are:
--disassembler-color=off # The default.
--disassembler-color=color
--disassembler-color=extended-color
I have implemented two colour modes, using the same option names as we
use of --visualize-jumps, a basic 8-color mode ("color"), and an
extended 8bit color mode ("extended-color").
The syntax highlighting requires that each targets disassembler be
updated; each time the disassembler produces some output we now pass
through an additional parameter indicating what style should be
applied to the text.
As updating all target disassemblers is a large task, the old API is
maintained. And so, a user of the disassembler (i.e. objdump, gdb)
must provide two functions, the current non-styled print function, and
a new, styled print function.
I don't currently have a plan for converting every single target
disassembler, my hope is that interested folk will update the
disassemblers they are interested in. But it is possible some might
never get updated.
In this initial series I intend to convert the RISC-V disassembler
completely, and also do a partial conversion of the x86 disassembler.
Hopefully having the x86 disassembler at least partial converted will
allow more people to try this out easily and provide feedback.
In this commit I have focused on objdump. The changes to GDB at this
point are the bare minimum required to get things compiling, GDB makes
no use of the styling information to provide any colors, that will
come later, if this commit is accepted.
This first commit in the series doesn't convert any target
disassemblers at all (the next two commits will update some targets),
so after this commit, the only color you will see in the disassembler
output, is that produced from objdump itself, e.g. from
objdump_print_addr_with_sym, where we print an address and a symbol
name, these are now printed with styling information, and so will have
colors applied (if the option is on).
Finally, my ability to pick "good" colors is ... well, terrible. I'm
in no way committed to the colors I've picked here, so I encourage
people to suggest new colors, or wait for this commit to land, and
then patch the choice of colors.
I do have an idea about using possibly an environment variable to
allow the objdump colors to be customised, but I haven't done anything
like that in this commit, the color choices are just fixed in the code
for now.
binutils/ChangeLog:
* NEWS: Mention new feature.
* doc/binutils.texi (objdump): Describe --disassembler-color
option.
* objdump.c (disassembler_color): New global.
(disassembler_extended_color): Likewise.
(disassembler_in_comment): Likewise.
(usage): Mention --disassembler-color option.
(long_options): Add --disassembler-color option.
(objdump_print_value): Use fprintf_styled_func instead of
fprintf_func.
(objdump_print_symname): Likewise.
(objdump_print_addr_with_sym): Likewise.
(objdump_color_for_disassembler_style): New function.
(objdump_styled_sprintf): New function.
(fprintf_styled): New function.
(disassemble_jumps): Use disassemble_set_printf, and reset
disassembler_in_comment.
(null_styled_print): New function.
(disassemble_bytes): Use disassemble_set_printf, and reset
disassembler_in_comment.
(disassemble_data): Update init_disassemble_info call.
(main): Handle --disassembler-color option.
include/ChangeLog:
* dis-asm.h (enum disassembler_style): New enum.
(struct disassemble_info): Add fprintf_styled_func field, and
created_styled_output field.
(disassemble_set_printf): Declare.
(init_disassemble_info): Add additional parameter.
(INIT_DISASSEMBLE_INFO): Add additional parameter.
opcodes/ChangeLog:
* dis-init.c (init_disassemble_info): Take extra parameter,
initialize the new fprintf_styled_func and created_styled_output
fields.
* disassembler.c (disassemble_set_printf): New function definition.
This core dump note contains the value of the base address of the %fs
and %gs segments for both i386 and amd64 core dumps. It is primarily
useful in resolving the address of TLS variables in core dumps.
binutils/ChangeLog:
* readelf.c (get_freebsd_elfcore_note_type): Handle
NT_FREEBSD_X86_SEGBASES.
include/ChangeLog:
* elf/common.h (NT_FREEBSD_X86_SEGBASES): Define.
My previous nm patch handled all cases but one -- if the user set NM in
the environment to a path which contained an option, libtool's nm
detection tries to run nm against a copy of nm with the options in it:
e.g. if NM was set to "nm --blargle", and nm was found in /usr/bin, the
test would try to run "/usr/bin/nm --blargle /usr/bin/nm --blargle".
This is unlikely to be desirable: in this case we should run
"/usr/bin/nm --blargle /usr/bin/nm".
Furthermore, as part of this nm has to detect when the passed-in $NM
contains a path, and in that case avoid doing a path search itself.
This too was thrown off if an option contained something that looked
like a path, e.g. NM="nm -B../prev-gcc"; libtool then tries to run
"nm -B../prev-gcc nm" which rarely works well (and indeed it looks
to see whether that nm exists, finds it doesn't, and wrongly concludes
that nm -p or whatever does not work).
Fix all of these by clipping all options (defined as everything
including and after the first " -") before deciding whether nm
contains a path (but not using the clipped value for anything else),
and then removing all options from the path-modified nm before
looking to see whether that nm existed.
NM=my-nm now does a path search and runs e.g.
/usr/bin/my-nm -B /usr/bin/my-nm
NM=/usr/bin/my-nm now avoids a path search and runs e.g.
/usr/bin/my-nm -B /usr/bin/my-nm
NM="my-nm -p../wombat" now does a path search and runs e.g.
/usr/bin/my-nm -p../wombat -B /usr/bin/my-nm
NM="../prev-binutils/new-nm -B../prev-gcc" now avoids a path search:
../prev-binutils/my-nm -B../prev-gcc -B ../prev-binutils/my-nm
This seems to be all combinations, including those used by GCC bootstrap
(which, before this commit, fails to bootstrap when configured
--with-build-config=bootstrap-lto, because the lto plugin is now using
--export-symbols-regex, which requires libtool to find a working nm,
while also using -B../prev-gcc to point at the lto plugin associated
with the GCC just built.)
Regenerate all affected configure scripts.
* libtool.m4 (LT_PATH_NM): Handle user-specified NM with
options, including options containing paths.
I much appreciate Nick offering this role to me. Nevertheless there's
still a lot for me to learn here.
At this occasion also update my email address in the pre-existing, much
more narrow entry.
The AMDGPU HSA OS ABI (code object v3 and above) defines the
NT_AMDGPU_METADATA ELF note [1]. The content is a msgpack object
describing, among other things, the kernels present in the code object
and how to call them.
I think it would be useful for readelf to be able to display the content
of those notes. msgpack is a structured format, a bit like JSON, except
not text-based. It is therefore possible to dump the contents in
human-readable form without knowledge of the specific layout of the
note.
Add configury to binutils to optionally check for the msgpack C library
[2]. Add There is a new --with{,out}-msgpack configure flag, and the actual
library lookup is done using pkg-config.
If msgpack support is enabled, dumping a NT_AMDGPU_METADATA note looks
like:
$ readelf --notes amdgpu-code-object
Displaying notes found in: .note
Owner Data size Description
AMDGPU 0x0000040d NT_AMDGPU_METADATA (code object metadata)
{
"amdhsa.kernels": [
{
".args": [
{
".address_space": "global",
".name": "out.coerce",
".offset": 0,
".size": 8,
".value_kind": "global_buffer",
},
<snip>
If msgpack support is disabled, dump the contents as hex, as is done
with notes that are not handled in a special way. This allows one to
decode the contents manually (maybe using a command-line msgpack
decoder) if really needed.
[1] https://llvm.org/docs/AMDGPUUsage.html#code-object-metadata
[2] https://github.com/msgpack/msgpack-c/tree/c_master
binutils/ChangeLog:
* Makefile.am (readelf_CFLAGS): New.
(readelf_LDADD): Add MSGPACK_LIBS.
* Makefile.in: Re-generate.
* config.in: Re-generate.
* configure: Re-generate.
* configure.ac: Add --with-msgpack flag and check for msgpack
using pkg-config.
* readelf.c: Include msgpack.h if HAVE_MSGPACK.
(print_note_contents_hex): New.
(print_indents): New.
(dump_msgpack_obj): New.
(dump_msgpack): New.
(print_amdgpu_note): New.
(process_note): Handle NT_AMDGPU_METADATA note contents.
Use print_note_contents_hex.
Change-Id: Ia60a654e620bc32dfdb1bccd845594e2af328b84
Handle the NT_AMDGPU_METADATA note, which is described here:
https://llvm.org/docs/AMDGPUUsage.html#code-object-v3-note-records
As of this patch, just print out the name, not the contents, which is in
the msgpack format.
binutils/ChangeLog:
* readelf.c (get_amdgpu_elf_note_type): New.
(process_note): Handle "AMDGPU" notes.
include/ChangeLog:
* elf/amdgcn.h (NT_AMDGPU_METADATA): New.
Change-Id: Id2dba2e2aeaa55ef7464fb35aee9c7d5f96ddb23
Decode and print the AMDGPU-specific fields of e_flags, as documented
here:
https://llvm.org/docs/AMDGPUUsage.html#header
That is:
- The specific GPU model
- Whether the xnack and sramecc features are enabled
The result looks like:
- Flags: 0x52f
+ Flags: 0x52f, gfx906, xnack any, sramecc any
The flags for the "HSA" OS ABI are properly versioned and documented on
that page. But the NONE, PAL and MESA3D OS ABIs are not well documented
nor versioned. Taking a peek at the LLVM source code, we see that they
encode their flags the same way as HSA v3. For example, for PAL:
c8b614cd74/llvm/lib/Target/AMDGPU/MCTargetDesc/AMDGPUTargetStreamer.cpp (L601)
So for those other OS ABIs, we read them the same as HSA v3.
binutils/ChangeLog:
* readelf.c: Include elf/amdgcn.h.
(decode_AMDGPU_machine_flags): New.
(get_machine_flags): Handle flags for EM_AMDGPU machine type.
include/ChangeLog:
* elf/amdgcn.h: Add EF_AMDGPU_MACH_AMDGCN_* and
EF_AMDGPU_FEATURE_* defines.
Change-Id: Ib5b94df7cae0719a22cf4e4fd0629330e9485c12
