There are two calls to uiout->is_mi_like_p in the else branch of a
if (uiout->is_mi_like_p ()), we already know they will return false.
A bit lower, there are two if (!uiout->is_mi_like_p ()) that we can
merge.
gdb/ChangeLog:
* thread.c (print_thread_info_1): Remove unnecessary calls to
uiout->is_mi_like_p.
This changes add_using_directive to accept a std::vector and then
changes the callers. This allows removing a cleanup.
ChangeLog
2017-09-09 Tom Tromey <tom@tromey.com>
* namespace.h (add_using_directive): Update.
* namespace.c (add_using_directive): Change type of excludes to
std::vector.
* dwarf2read.c (read_import_statement): Use std::vector.
(read_namespace): Update.
* cp-namespace.c (cp_scan_for_anonymous_namespaces): Update.
This changes create_sals_line_offset to use gdb::def_vector, removing
some cleanups.
ChangeLog
2017-09-09 Tom Tromey <tom@tromey.com>
* linespec.c (create_sals_line_offset): Use gdb::def_vector.
This changes pascal_object_print_value to use a gdb::byte_vector.
This removes a cleanup. This change also points out how the previous
code had a possible use-after-free bug.
ChangeLog
2017-09-09 Tom Tromey <tom@tromey.com>
* p-valprint.c (pascal_object_print_value): Use gdb::byte_vector.
This changes func_command to use gdb::def_vector, removing a cleanup.
ChangeLog
2017-09-09 Tom Tromey <tom@tromey.com>
* stack.c (func_command): Use gdb::def_vector.
This changes a few spots to use ui_out_emit_list and/or
ui_out_emit_tuple with gdb::optional, to preserve existing behavior.
This allows for the removal of a few more cleanups.
ChangeLog
2017-09-09 Tom Tromey <tom@tromey.com>
* mi/mi-cmd-var.c (mi_cmd_var_list_children): Use gdb::optional,
ui_out_emit_list, ui_out_emit_tuple.
(mi_cmd_var_update): Likewise.
This patch introduces ui_out_redirect_pop. All uses of
make_cleanup_ui_out_redirect_pop are replaced with this new class.
ChangeLog
2017-09-09 Tom Tromey <tom@tromey.com>
* mi/mi-interp.c (mi_user_selected_context_changed): Use
ui_out_redirect_pop.
* guile/scm-ports.c (ioscm_with_output_to_port_worker): Use
ui_out_redirect_pop.
* utils.c (do_ui_out_redirect_pop)
(make_cleanup_ui_out_redirect_pop): Remove.
* top.c (execute_command_to_string): Use ui_out_redirect_pop.
* utils.h (make_cleanup_ui_out_redirect_pop): Remove.
* ui-out.h (ui_out_redirect_pop): New class.
This changes various spots to use ui_out_emit_list, removing some
cleanups.
ChangeLog
2017-09-09 Tom Tromey <tom@tromey.com>
* mi/mi-main.c (output_cores): Use ui_out_emit_list.
(list_available_thread_groups, mi_cmd_list_thread_groups)
(mi_cmd_data_list_changed_registers, mi_cmd_data_read_memory)
(mi_cmd_data_read_memory_bytes, mi_cmd_trace_frame_collected):
Likewise.
This changes one spot in disasm.c to use ui_out_emit_tuple. This
patch required a large reindentation, so I've separated it out.
ChangeLog
2017-09-09 Tom Tromey <tom@tromey.com>
* disasm.c (gdb_pretty_print_disassembler::pretty_print_insn): Use
ui_out_emit_tuple.
This changes more places to use ui_out_emit_tuple, removing cleanups.
ChangeLog
2017-09-09 Tom Tromey <tom@tromey.com>
* target.c (flash_erase_command): Use ui_out_emit_tuple.
* stack.c (print_frame): Use ui_out_emit_tuple.
* spu-tdep.c (info_spu_event_command): Use ui_out_emit_tuple.
(info_spu_mailbox_command, info_spu_dma_command)
(info_spu_proxydma_command): Likewise.
* mi/mi-main.c (mi_cmd_trace_frame_collected): Use
ui_out_emit_tuple, gdb::byte_vector, bin2hex.
* mi/mi-cmd-file.c (mi_cmd_file_list_shared_libraries): Use
ui_out_emit_tuple.
* breakpoint.c (print_it_watchpoint): Use ui_out_emit_tuple.
This changes the few remaining uses of
make_cleanup_ui_out_table_begin_end to use ui_out_emit_table instead,
and then removes the cleanup.
ChangeLog
2017-09-09 Tom Tromey <tom@tromey.com>
* ui-out.h (make_cleanup_ui_out_table_begin_end): Remove.
(class ui_out_emit_table): Update comment.
* ui-out.c (do_cleanup_table_end)
(make_cleanup_ui_out_table_begin_end): Remove.
* spu-tdep.c (info_spu_mailbox_list): Use ui_out_emit_table.
(info_spu_dma_cmdlist): Likewise.
* probe.c (info_probes_for_ops): Use ui_out_emit_table.
* darwin-nat-info.c (darwin_debug_regions_recurse): Use
ui_out_emit_table.
This changes print_thread_info_1 to use ui_out_emit_table and
ui_out_emit_list. Which one is used depends on whether the ui-out is
mi-like; so the emitters are wrapped in gdb::optional.
ChangeLog
2017-09-09 Tom Tromey <tom@tromey.com>
* thread.c (print_thread_info_1): Use ui_out_emit_table,
ui_out_emit_list, gdb::optional.
This changes the PowerPC64 --plt-align option to perform the usual
alignment of code as suggested by its name, as well as the previous
behaviour of padding so as to reduce boundary crossing. The old
behaviour is had by using a negative parameter.
The default is also changed to align plt stub code by default to 32
byte boundaries, the point being to get better bctr branch prediction
on power8 and power9 hardware.
bfd/
* elf64-ppp.c (plt_stub_pad): Handle positive and negative
plt_stub_align.
ld/
* ld.texinfo (--plt-align): Describe new behaviour of option.
* emultempl/ppc64elf.em (params): Default plt_stub_align to 5.
* testsuite/ld-powerpc/powerpc.exp: Pass --no-plt-align for
selected tests.
* testsuite/ld-powerpc/relbrlt.d: Pass --no-plt-align.
* testsuite/ld-powerpc/elfv2so.d: Adjust expected output.
Since the only information which SYMBOL_REFERENCES_LOCAL_P doesn't check
is relocations, UNDEFINED_WEAK_RESOLVED_TO_ZERO only needs to check for
relocations with SYMBOL_REFERENCES_LOCAL_P.
* elf32-i386.c (elf_i386_relocate_section): Update usage of
UNDEFINED_WEAK_RESOLVED_TO_ZERO.
(elf_i386_finish_dynamic_symbol): Likewise.
* elf64-x86-64.c (elf_x86_64_relocate_section): Likewise.
(elf_x86_64_finish_dynamic_symbol): Likewise.
* elfxx-x86.c (elf_x86_allocate_dynrelocs): Likewise.
(_bfd_x86_elf_fixup_symbol): Likewise.
_bfd_x86_elf_link_symbol_references_local should depend only on symbol
references, not relocations, to work in check_relocs.
* elfxx-x86.c (_bfd_x86_elf_link_symbol_references_local): Don't
check has_non_got_reloc.
Since the NOTRACK prefix is no longer required to be the last prefix
before the REX prefix, restriction on the NOTRACK prefix position is
removed from assembler as well as disassembler. Assembler encodes the
NOTRACK prefix the same way as the DS segment register, which places
it before other prefixes. Disassembler displays prefixes in the order
they appear.
gas/
* config/tc-i386.c (NOTRACK_PREFIX): Removed.
(REX_PREFIX): Updated.
(MAX_PREFIXES): Likewise.
(parse_insn): Remove restriction on NOTRACK prefix position.
* testsuite/gas/i386/notrack.s: Add tests with NOTRACK prefix
before other prefixes.
* testsuite/gas/i386/x86-64-notrack.s: Likewise.
* testsuite/gas/i386/notrackbad.s: Remove tests with NOTRACK
prefix before other prefixes.
* testsuite/gas/i386/x86-64-notrackbad.s: Likewise.
* testsuite/gas/i386/notrack-intel.d: Updated.
* testsuite/gas/i386/notrack.d: Likewise.
* testsuite/gas/i386/notrackbad.l: Likewise.
* testsuite/gas/i386/x86-64-notrack-intel.d: Likewise.
* testsuite/gas/i386/x86-64-notrack.d: Likewise.
* testsuite/gas/i386/x86-64-notrackbad.l: Likewise.
opcodes/
* i386-dis.c (last_active_prefix): Removed.
(ckprefix): Don't set last_active_prefix.
(NOTRACK_Fixup): Don't check last_active_prefix.
After _bfd_i386_elf_convert_load and _bfd_x86_64_elf_convert_load are
removed, elf_i386_convert_load_reloc and elf_x86_64_convert_load_reloc
see __ehdr_start as an undefined symbol when they are called from
check_relocs to convert GOT relocations against local symbols. But
__ehdr_start will be defined as a hidden symbol by linker at the later
stage if it is referenced. This patch marks __ehdr_start as a defined
local symbol at the start of check_relocs if it is referenced and not
defined.
bfd/
PR ld/22115
* elf32-i386.c (elf_i386_convert_load_reloc): Check linker_def.
Don't use UNDEFINED_WEAK_RESOLVED_TO_ZERO.
* elf64-x86-64.c (elf_x86_64_convert_load_reloc): Check
linker_def. Don't use UNDEFINED_WEAK_RESOLVED_TO_ZERO.
* elfxx-x86.c (_bfd_x86_elf_link_check_relocs): Set local_ref
and linker_def on __ehdr_start if it is referenced and not
defined.
(_bfd_x86_elf_link_symbol_references_local): Also set local_ref
and return TRUE when building executable, if a symbol has
non-GOT/non-PLT relocations in text section or there is no
dynamic linker.
* elfxx-x86.h (elf_x86_link_hash_entry): Add linker_def.
ld/
PR ld/22115
* ld-i386/i386.exp: Run PR ld/22115 tests,
* ld/testsuite/ld-x86-64/x86-64.exp: Likewise.
* testsuite/ld-i386/pr22115-1.s: New file.
* testsuite/ld-i386/pr22115-1a.d: Likewise.
* testsuite/ld-i386/pr22115-1b.d: Likewise.
* testsuite/ld-i386/pr22115-1c.d: Likewise.
* testsuite/ld-i386/pr22115-1d.d: Likewise.
* testsuite/ld-x86-64/pr22115-1.s: Likewise.
* testsuite/ld-x86-64/pr22115-1a-x32.d: Likewise.
* testsuite/ld-x86-64/pr22115-1a.d: Likewise.
* testsuite/ld-x86-64/pr22115-1b-x32.d: Likewise.
* testsuite/ld-x86-64/pr22115-1b.d: Likewise.
* testsuite/ld-x86-64/pr22115-1c-x32.d: Likewise.
* testsuite/ld-x86-64/pr22115-1c.d: Likewise.
* testsuite/ld-x86-64/pr22115-1d-x32.d: Likewise.
* testsuite/ld-x86-64/pr22115-1d.d: Likewise.
Since at least 7.3 the "fnfields" field in struct field_info has been
unused. This patch simply removes it.
gdb/ChangeLog:
* dwarf2read.c (struct field_info) <fnfields>: Remove unused
field.
Remove code relevant for printing C/C++ Integer values in a
Fortran specific file to unify printing of Fortran values.
This does not change the output.
Printing the prefix "PTR TO -> (" resp. "REF TO ->(" ignored the active
indentation level. This caused inconsistent appearance of user-defined
Fortran types containing pointers. Fix by using "fprintfi_filtered" with the
current indentation level for outputting the prefix string. Add test case
ptr-indentation.
Example using 'ptype' on object of type:
type TypeWithPointer
integer i
integer, pointer:: p
end type TypeWithPointer
Before:
type = Type typewithpointer
integer(kind=4) :: i
PTR TO -> ( integer(kind=4) :: p)
End Type typewithpointer
After:
type = Type typewithpointer
integer(kind=4) :: i
PTR TO -> ( integer(kind=4) :: p)
End Type typewithpointer
Don't set r_info and r_sym fields in _bfd_x86_elf_link_hash_table_create.
Instead, set them in _bfd_x86_elf_link_setup_gnu_properties. We can
avoid adding elf64-x86-64.lo and elf64.lo together with elfxx-x86.lo to
bfd_backends.
* configure.ac (bfd_backends): Don't add elf64-x86-64.lo nor
elf64.lo together with elfxx-x86.lo for 64-bit BFD.
* configure: Regenerated.
* elf32-i386.c (elf_i386_link_setup_gnu_properties): Set r_info
and r_sym fields of plt_layout.
* elf64-x86-64.c (elf_x86_64_link_setup_gnu_properties):
Likewise.
* elfxx-x86.c (elf_x86_64_is_reloc_section): Remove BFD64 check.
(_bfd_x86_elf_link_hash_table_create): Likewise. Don't set
r_info nor r_sym fields.
(_bfd_x86_elf_link_setup_gnu_properties): Set r_info and r_sym
fields of htab.
* elfxx-x86.h (elf_x86_plt_layout_table): Add r_info and r_sym.
When linking the following code
.global _prog_start
_prog_start:
mv x1, x1
mv x2, x2
.align 2
rvc_boundry:
.option norvc
.align 3
mv x3, x3
we currently emit an invalid two-byte 0 instruction. The actual output
code looks like
0000000080000000 <_prog_start>:
80000000: 8086 mv ra,ra
80000002: 810a mv sp,sp
0000000080000004 <rvc_boundry>:
80000004: 0000 unimp
80000006: 0001 nop
80000008: 00018193 mv gp,gp
This ends up manifesting due to the two-byte compressed NOP that's
pessimisticly emitted by the ".align 2", which results in "rvc_boundry"
being 2-byte aligned. frag_align_code() then goes and outputs a 2-byte
NOP (which is invalid in no-RVC mode) to align the code back to a 4-byte
boundry, which can't be relaxed away by the linker as it's not part of
the R_RISCV_RELAX relocation.
The fix is to just always emit the worst case possible alignment into
the output as a single R_RISCV_RELAX, which the linker will then fix up.
With this patch I get the expected code generation
0000000080000000 <_prog_start>:
80000000: 8086 mv ra,ra
80000002: 810a mv sp,sp
0000000080000004 <rvc_boundry>:
80000004: 00000013 nop
80000008: 00018193 mv gp,gp
gas/ChangeLog
2017-09-07 Palmer Dabbelt <palmer@dabbelt.com>
* config/tc-riscv.c (riscv_frag_align_code): Emit the entire
alignment sequence inside R_RISCV_ALIGN.
This used to just print "can't relax section: Success", which is a silly
error message.
bfd/ChangeLog
2017-09-07 Palmer Dabbelt <palmer@dabbelt.com>
* elfnn-riscv.c (_bfd_riscv_relax_align): Call bfd_set_error and
print an error message when unable to relax a .align directive.
I recently modified our Linux port's base address such the absolute
address 0 is no longer addressable as a 32-bit PC-relative offset.
Since Linux links a weak undefined symbol in an intermediate binary, it
needs to be able to reference absolute address 0.
This patch changes R_RISCV_PCREL_* relocations to absolute relocations
while resolving them in order to allow these symbols to be referenced in
PC-relative programs linked at high addresses. Note that this doesn't
apply to PIC, which also uses PC-relative relocations, just to
position-dependent objects, which we use to allow programs to be linked
at high addresses.
In case some of our embedded users are using R_RISCV_PCREL_* as a hacked
up method of getting position-independent binaries (which can work if
you have very simple programs), we only convert the relocations when the
PC-relative version would overflow.
bfd/ChangeLog:
2017-09-07 Palmer Dabbelt <palmer@dabbelt.com>
* elfnn-riscv.c (riscv_zero_pcrel_hi_reloc): New function.
(riscv_record_pcrel_hi_reloc): Add absolute argument.
(riscv_elf_relocate_section): Call riscv_zero_pcrel_hi_reloc for
R_RISCV_PCREL_HI20 relocs, and pass the result to
riscv_record_pcrel_hi_reloc.
This entry was added twice within the same commit, back in Dec 2017
by the following change:
commit aefd8b33d9
Date: Thu Dec 22 22:14:02 2016 -0500
Subject: Implement proper "startup-with-shell" support on gdbserver
I think the second entry is just a rebase/merge oversight, and it wasn't
meant to be added there, particularly since the 7.11 branch was no longer
active at that time anymore.
This patch just removes the entry.
gdb/ChangeLog:
* NEWS (Changes in GDB 7.11): Remove entry for QStartupWithShell.
Instead of converting GOT relocations when sizing dynamic sections, we
convert GOT relocations during relocation check. Add a field, local_ref,
to elf_x86_link_hash_entry to indicate if symbol references are always
local with a new function to check if symbol references are always local,
which works in check_relocs.
* elf32-i386.c (elf_i386_convert_load_reloc): Add an argument,
r_type_p. Remove the converted argument. Replace
SYMBOL_REFERENCES_LOCAL with SYMBOL_REFERENCES_LOCAL_P. Return
the new relocation type via r_type_p.
(elf_i386_relocate_section): Likewise.
(elf_i386_finish_dynamic_symbol): Likewise.
(need_convert_load): Removed.
(check_relocs_failed): Updated.
(elf_i386_check_relocs): Call elf_i386_convert_load_reloc,
instead of setting need_convert_load.
(_bfd_i386_elf_convert_load): Removed.
* elf64-x86-64.c (need_convert_load): Removed.
(check_relocs_failed): Updated.
(elf_x86_64_convert_load_reloc): Add an argument, r_type_p.
Replace SYMBOL_REFERENCES_LOCAL with SYMBOL_REFERENCES_LOCAL_P.
Return the new relocation type via r_type_p.
(elf_x86_64_check_relocs): Call elf_x86_64_convert_load_reloc,
instead of setting need_convert_load.
(elf_x86_64_check_relocs): Don't check PIC if relocation has
been converted.
(_bfd_x86_64_elf_convert_load): Removed.
(elf_x86_64_relocate_section): Replace SYMBOL_REFERENCES_LOCAL
with SYMBOL_REFERENCES_LOCAL_P.
(elf_x86_64_finish_dynamic_symbol): Likewise.
* elfxx-x86.c (_bfd_x86_elf_link_hash_table_create): Don't
set convert_load.
(_bfd_x86_elf_size_dynamic_sections): Don't call convert_load.
(_bfd_x86_elf_link_symbol_references_local): New function.
* elfxx-x86.h (SYMBOL_REFERENCES_LOCAL_P): New.
(UNDEFINED_WEAK_RESOLVED_TO_ZERO): Replace elf.forced_local with
SYMBOL_REFERENCES_LOCAL_P.
(elf_x86_link_hash_entry): Add local_ref.
(elf_x86_link_hash_table): Remove convert_load.
(_bfd_i386_elf_convert_load): Removed.
(_bfd_x86_64_elf_convert_load): Likewise.
(_bfd_x86_elf_link_symbol_references_local): New.
This simplifies the handling of funcall_chain, by changing it to be a
std::vector<int> and then fixing the users. This allows the removal
of a cleanup.
It would be even cleaner to replace this with better logic in the
parsers; but a baby step seemed ok.
gdb/ChangeLog
2017-09-05 Tom Tromey <tom@tromey.com>
* parse.c (funcall_chain): Now a std::vector.
(start_arglist, end_arglist): Simplify.
(free_funcalls): Remove.
(parse_exp_in_context_1): Remove cleanup.
This removes the last remaining cleanups from d-exp.y.
2017-09-05 Tom Tromey <tom@tromey.com>
* d-exp.y (PrimaryExpression): Use std::string.
(d_parse): Don't create a cleanup.
The DWARF reader is littered with the following idiom to read a linkage name
from the debug info:
mangled = dwarf2_string_attr (die, DW_AT_linkage_name, cu);
if (mangled == NULL)
mangled = dwarf2_string_attr (die, DW_AT_MIPS_linkage_name, cu);
This patch introduces functions to simplify this to:
mangled = dw2_linkage_name (die, cu);
or
attr = dw2_linkage_name_attr (die, cu);
gdb/ChangeLog:
* dwarf2read.c (dw2_linkage_name_attr): New function.
(dw2_linkage_name): New function.
(dwarf2_compute_name, dwarf2_physname, read_call_site_scope)
(guess_full_die_structure_name, dwarf2_name): Use dw2_linkage_name.
(anonymous_struct_prefix, dwarf2_name): Use dw2_linkage_name_attr.
PR gdb/22010 concerns a regression I introduced with the scalar
printing changes. The bug is that this code in sizeof.exp:
set signof_byte [get_integer_valueof "'\\377'" -1]
can incorrectly compute sizeof_byte. One underlying problem here is
that gdb's C parser doesn't treat a char constant as an int (this is
PR 19973).
However, it seems good to have an immediate fix for the regression.
The simplest is to cast to an int here.
testsuite/ChangeLog
2017-09-05 Tom Tromey <tom@tromey.com>
PR gdb/22010:
* gdb.base/sizeof.exp (check_valueof): Cast char constant to int.
String comparison of in a POSIX bourne shell must be done
with '=', not '=='. For example the NetBSD sh(1) does not
support it.
gdb/ChangeLog
2017-09-06 Kamil Rytarowski <n54@gmx.com>
* config/djgpp/djconfig.sh: Correct shell portability issue.
Tests in gdb.arch/thumb2-it.exp call functions defined in assembly
without type debugging information. Since
7022349d5c ("Stop assuming no-debug-info
functions return int") this triggers an error which leads to many tests
to FAIL. This patch cast the call to indicate the return type of the
functions when calling them.
2017-09-06 Thomas Preud'homme <thomas.preudhomme@arm.com>
gdb/testsuite/
* gdb.arch/thumb2-it.exp: Cast call to assembly defined function.
NetBSD ships with gcore(1) againg since the version 2.0.
This tool is functional and actively maintained.
gdb/ChangeLog
2017-09-06 Kamil Rytarowski <n54@gmx.com>
* configure.nat: Define HAVE_NATIVE_GCORE_HOST on NetBSD.
Support for collecting and supplying general purpose and floating point
register sets is provided along with signal frame unwinding.
gdb/ChangeLog:
* Makefile.in (ALL_64_TARGET_OBS): Add aarch64-fbsd-tdep.o.
(ALLDEPFILES): Add aarch64-fbsd-tdep.c.
* NEWS: Mention new FreeBSD/aarch64 target.
* configure.tgt: Add aarch64*-*-freebsd*.
* aarch64-fbsd-tdep.c: New file.
* aarch64-fbsd-tdep.h: New file.
Add R_X86_64_converted_reloc_bit to relocation type to indicate if a
relocation is converted from a GOTPCREL relocation. Linker now generates
failed to convert GOTPCREL relocation; relink with --no-relax
for all cases, including relocations against local symbols.
bfd/
* elf64-x86-64.c (R_X86_64_converted_reloc_bit): New.
(elf_x86_64_info_to_howto): Get the real relocation type by
masking out R_X86_64_converted_reloc_bit.
(elf_x86_64_check_tls_transition): Get the real relocation type
by masking out R_X86_64_converted_reloc_bit.
(elf_x86_64_convert_load_reloc): Set R_X86_64_converted_reloc_bit
instead of setting converted_reloc.
(elf_x86_64_relocate_section): Check R_X86_64_converted_reloc_bit
instead of converted_reloc. Get the real relocation type by
masking out R_X86_64_converted_reloc_bit.
(elf_x86_64_link_setup_gnu_properties): Verify that the value of
R_X86_64_converted_reloc_bit is valid.
* elfxx-x86.h (converted_reloc): Removed.
ld/
* testsuite/ld-x86-64/pr19609-2a.d: Updated.
* testsuite/ld-x86-64/pr19609-2b.d: Likewise.
* testsuite/ld-x86-64/pr19609-4a.d: Likewise.
* testsuite/ld-x86-64/pr19609-4c.d: Likewise.
