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of \"e.full_name\" in current context"
Looking at testsuite results, I noticed this warning in an MI test:
~"\nCatchpoint "
~"2, "
&"warning: failed to get exception name: No definition of \"e.full_name\" in current context.\n"
~"exception at 0x000000000040192d in foo () at /home/pedro/brno/pedro/gdb/mygit/src/gdb/testsuite/gdb.ada/mi_catch_ex/foo.adb:20\n"
~"20\t raise Constraint_Error; -- SPOT1\n"
*stopped,reason="breakpoint-hit",disp="keep",bkptno="2",exception-name="CONSTRAINT_ERROR",frame={addr="0x000000000040192d",func="foo",args=[],file="/home/pedro/brno/pedro/gdb/mygit/src/gdb/testsuite/gdb.ada/mi_catch_ex/foo.adb",fullname="/home/pedro/brno/pedro/gdb/mygit/src/gdb/testsuite/gdb.ada/mi_catch_ex/foo.adb",line="20"},thread-id="1",stopped-threads="all",core="5"
(gdb)
PASS: gdb.ada/mi_catch_ex.exp: continue until CE caught by all-exceptions catchpoint
The problem is that:
- MI prints the breakpoint hit twice: once on the MI stream;
another time on the console stream.
- After printing the Ada catchpoint hit, gdb selects a non-current
frame, from within the catchpoint's print_it routine.
So the second time the breakpoint is printed, the selected frame is no
longer the current frame, and then evaluating e.full_name in
ada_exception_name_addr fails.
This commit fixes the problem and enhances the gdb.ada/mi_catch_ex.exp
test to make sure the catchpoint hit is printed correctly on the
console stream too.
gdb/ChangeLog:
2016-06-21 Pedro Alves <palves@redhat.com>
* ada-lang.c (ada_exception_name_addr_1): Add comment.
(print_it_exception): Select the current frame.
gdb/testsuite/ChangeLog:
2016-06-21 Pedro Alves <palves@redhat.com>
* gdb.ada/mi_catch_ex.exp (continue_to_exception): New procedure.
(top level): Use it instead of mi_execute_to.
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Similarly to 5068630ad34dce5fefbe68d70d3a50cd8b92f71e
(gdb.python/py-events.exp and normal_stop observers ordering) [1],
this commit makes the gdb.python/py-mi-events.exp test not rely on
order in which MI and Python observers run, or even on where each
observer sends its output to.
This shows up as a problem when testing with MI running as a separate
terminal, for example, where Python event output and MI output go to
different channels, even. But in any case, relying on the order in
which observers run is always going to be fragile.
The fix is to save the string output in the handlers in some variables
and then having MI print them explicitly, instead of printing them
directly from the Python events.
Tested on x86_64 Fedora 23.
https://sourceware.org/ml/gdb-patches/2015-07/msg00290.html
gdb/testsuite/ChangeLog:
2016-06-21 Pedro Alves <palves@redhat.com>
* gdb.python/py-mi-events-gdb.py (stop_handler_str)
(cont_handler_str): New.
(signal_stop_handler): Set stop_handler_str instead of printing to
stdout.
(continue_handler): Set cont_handler_str instead of printing to
stdout.
* gdb.python/py-mi-events.exp: Ues mi_execute_to instead of
mi_send_resuming_command. Print stop_handler_str and
cont_handler_str instead of expecting the python events print
directly.
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gas/
* testsuite/gas/mips/r6-64-n32.d: Change the `name' tag.
* testsuite/gas/mips/r6-64-n64.d: Likewise.
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Complement commit 44d3da233815 ("MIPS/GAS: Treat local jump relocs the
same no matter if REL or RELA") and update and clarify the comment on
jump reloc conversion.
gas/
* config/tc-mips.c (mips_fix_adjustable): Update comment on jump
reloc conversion.
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If there is no PLT in output, return 0 for first_plt_entry_offset and
plt_entry_size.
PR gold/20245
* i386.cc (Target_i386::first_plt_entry_offset): Return 0 if
plt_ is NULL.
(Target_i386::plt_entry_size): Likewise.
(Target_x86_64<size>::first_plt_entry_offset): Likewise.
(Target_x86_64<size>::plt_entry_size): Likewise.
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Includes DT_MIPS_RLD_MAP and DT_MIPS_RLD_MAP_REL dynamic tags and
__RLD_MAP symbol.
2016-06-20 Vladimir Radosavljevic <Vladimir.Radosavljevic@imgtec.com>
elfcpp/
* elfcpp.h (DT_MIPS_RLD_MAP_REL): New enum constant.
gold/
* mips.cc (Target_mips::Target_mips): Initialize rld_map_.
(Target_mips::rld_map_): New data member.
(Target_mips::do_finalize_sections): Add support for
DT_MIPS_RLD_MAP and DT_MIPS_RLD_MAP_REL dynamic tags,
.rld_map section, and __RLD_MAP symbol.
(Target_mips::do_dynamic_tag_custom_value): Add support for
DT_MIPS_RLD_MAP_REL dynamic tag.
* output.cc (Output_data_dynamic::get_entry_offset): New method
definition.
* output.h (Output_data_dynamic::get_entry_offset): New method
declaration.
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gold/
* mips.cc (Mips_relocate_functions::relpc16): Add unaligned check.
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elfcpp/
* mips.h (R_MIPS_PC21_S2, R_MIPS_PC26_S2, R_MIPS_PC18_S3,
R_MIPS_PC19_S2, R_MIPS_PCHI16, R_MIPS_PCLO16): New enums for
Mips32r6 and Mips64r6 relocations.
(r6_isa): New function.
gold/
* mips.cc (relocation_needs_la25_stub): Add support for relocs:
R_MIPS_PC21_S2 and R_MIPS_PC26_S2.
(hi16_reloc): Add support for R_MIPS_PCHI16 relocation.
(is_matching_lo16_reloc): Likewise.
(lo16_reloc): Add support for R_MIPS_PCLO16 relocation.
(Mips_output_data_plt::plt_entry_r6): New static data member for
R6 PLT entry.
(Target_mips::is_output_r6): New method.
(Target_mips::Mips_mach): Add new enum constants.
(Mips_relocate_functions::Status): Likewise.
(Mips_relocate_functions::pchi16_relocs): New static data member.
(Mips_relocate_functions::relpc21): New method.
(Mips_relocate_functions::relpc26): Likewise.
(Mips_relocate_functions::relpc18): Likewise.
(Mips_relocate_functions::relpc19): Likewise.
(Mips_relocate_functions::relpchi16): Likewise.
(Mips_relocate_functions::do_relpchi16): Likewise.
(Mips_relocate_functions::relpclo16): Likewise.
(Mips_output_data_plt::do_write): Add support for Mips r6 plt
entry.
(Target_mips::mips_32bit_flags): Add E_MIPS_ARCH_32R6 support.
(Target_mips::elf_mips_mach): Add E_MIPS_ARCH_32R6 and
E_MIPS_ARCH_64R6 support.
(Target_mips::update_abiflags_isa): Likewise.
(mips_get_size_for_reloc): Add support for relocs: R_MIPS_PCHI16,
R_MIPS_PCLO16, R_MIPS_PC21_S2, R_MIPS_PC26_S2, R_MIPS_PC18_S3 and
R_MIPS_PC19_S2.
(Target_mips::Scan::local): Add support for relocs: R_MIPS_PCHI16
and R_MIPS_PCLO16.
(Target_mips::Scan::global): Add support for relocs:
R_MIPS_PC21_S2 and R_MIPS_PC26_S2.
(Target_mips::Relocate::relocate): Call functions for resolving
Mips32r6 and Mips64r6 relocations, and print error message for
STATUS_PCREL_UNALIGNED.
(Target_mips::Scan::get_reference_flags): Add support for relocs:
R_MIPS_PCHI16, R_MIPS_PCLO16, R_MIPS_PC21_S2, R_MIPS_PC26_S2,
R_MIPS_PC18_S3 and R_MIPS_PC19_S2.
(Target_mips::elf_mips_mach_name): Add E_MIPS_ARCH_32R6 and
E_MIPS_ARCH_64R6 support.
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ELF linker shouldn't skip the IR object when searching the symbol table
of an archive element. If linker doesn't know if the object file is an
IR object, it should give LTO plugin a chance to get the correct symbol
table and use the IR symbol table if the input is an IR object.
bfd/
PR ld/18250
PR ld/20267
* elflink.c: Include plugin.h if BFD_SUPPORTS_PLUGINS is
defined.
(elf_link_is_defined_archive_symbol): Call
bfd_link_plugin_object_p on unknown plugin object and use the
IR symbol table if the input is an IR object.
* plugin.c (bfd_link_plugin_object_p): New function.
* plugin.h (bfd_link_plugin_object_p): New prototype.
ld/
PR ld/20267
* testsuite/ld-plugin/lto.exp (lto_link_tests): Add test for
PR ld/20267.
(lto_run_tests): Likewise.
* testsuite/ld-plugin/pr20267a.c: New file.
* testsuite/ld-plugin/pr20267b.c: Likewise.
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gas * config/tc-aarch64.c (aarch64_cpus): Update vulcan feature set.
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Also, don't check alignment on symbol from plugin dummy input.
bfd/
PR ld/20276
* elflink.c (elf_link_add_object_symbols): Don't check alignment
on symbol from plugin dummy input.
ld/
PR ld/20276
* plugin.c (plugin_notice): Set non_ir_ref on common symbols.
* testsuite/ld-plugin/lto.exp (lto_link_tests): Add test for
PR ld/20276.
(lto_run_tests): Likewise.
* testsuite/ld-plugin/pass.out: New file.
* testsuite/ld-plugin/pr20276a.c: Likewise.
* testsuite/ld-plugin/pr20276b.c: Likewise.
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bfd/
* bfd.c (bfd_plugin_format): Rename bfd_plugin_uknown to
bfd_plugin_unknown.
* bfd-in2.h: Regenerated.
* plugin.c (bfd_plugin_object_p): Replace bfd_plugin_uknown
with bfd_plugin_unknown.
ld/
* plugin.c (plugin_object_p): Replace bfd_plugin_uknown
with bfd_plugin_unknown.
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If a backend supports it, PLT entry isn't needed when all references
to a STT_GNU_IFUNC symbols are done via GOT or static function pointers.
For GOT entries, We generate dynamic R_*_GLOB_DAT relocations for
preemptable symbols and R_*_IRELATIVE relocations for non-preemptable
symbols to update them with real function address. For static pointer
pointers, we generate dynamic pointer relocations and store them in:
1. .rel[a].ifunc section in PIC object.
2. .rel[a].got section in dynamic executable.
3. .rel[a].iplt section in static executable.
We don't allocate GOT entry if it isn't used.
bfd/
PR ld/20253
* elf-bfd.h (_bfd_elf_allocate_ifunc_dyn_relocs): Add an
bfd_boolean argument.
* elf-ifunc.c (_bfd_elf_create_ifunc_sections): Replace
"shared object" with "PIC object" in comments.
(_bfd_elf_allocate_ifunc_dyn_relocs): Updated. Replace
"shared object" with "PIC object" in comments. Avoid PLT if
requested. Generate dynamic relocations for non-GOT references.
Make room for the special first entry in PLT and allocate PLT
entry only for PLT and PC-relative references. Store dynamic
GOT relocations in .rel[a].iplt section for static executables.
If PLT isn't used, always use GOT for symbol value. Don't
allocate GOT entry if it isn't used.
* elf32-i386.c (elf_i386_check_relocs): Increment PLT reference
count only in the code section. Allocate dynamic pointer
relocation against STT_GNU_IFUNC symbol in the non-code section.
(elf_i386_adjust_dynamic_symbol): Increment PLT reference count
only for PC-relative references.
(elf_i386_allocate_dynrelocs): Pass TRUE to
_bfd_elf_allocate_ifunc_dyn_relocs.
(elf_i386_relocate_section): Allow R_386_GOT32/R_386_GOT32X
relocations against STT_GNU_IFUNC symbols without PLT. Generate
dynamic pointer relocation against STT_GNU_IFUNC symbol in
the non-code section and store it in the proper REL section.
Don't allow non-pointer relocation against STT_GNU_IFUNC symbol
without PLT.
(elf_i386_finish_dynamic_symbol): Generate dynamic
R_386_IRELATIVE and R_386_GLOB_DAT GOT relocations against
STT_GNU_IFUNC symbols without PLT.
(elf_i386_finish_dynamic_sections): Don't handle local
STT_GNU_IFUNC symbols here.
(elf_i386_output_arch_local_syms): Handle local STT_GNU_IFUNC
symbols here.
(elf_backend_output_arch_local_syms): New.
* elf32-x86-64.c (elf_i386_check_relocs): Increment PLT reference
count only in the code section. Allocate dynamic pointer
relocation against STT_GNU_IFUNC symbol in the non-code section.
(elf_x86_64_adjust_dynamic_symbol): Increment PLT reference
count only for PC-relative references.
(elf_x86_64_allocate_dynrelocs): Pass TRUE to
_bfd_elf_allocate_ifunc_dyn_relocs.
(elf_x86_64_relocate_section): Allow R_X86_64_GOTPCREL,
R_X86_64_GOTPCRELX, R_X86_64_REX_GOTPCRELX and
R_X86_64_GOTPCREL64 relocations against STT_GNU_IFUNC symbols
without PLT. Generate dynamic pointer relocation against
STT_GNU_IFUNC symbol in the non-code section and store it in
the proper RELA section. Don't allow non-pointer relocation
against STT_GNU_IFUNC symbol without PLT.
(elf_x86_64_finish_dynamic_symbol): Generate dynamic
R_X86_64_IRELATIVE and R_X86_64_GLOB_DAT GOT relocations against
STT_GNU_IFUNC symbols without PLT.
(elf_x86_64_finish_dynamic_sections): Don't handle local
STT_GNU_IFUNC symbols here.
(elf_x86_64_output_arch_local_syms): Handle local STT_GNU_IFUNC
symbols here.
(elf_backend_output_arch_local_syms): New.
* elfnn-aarch64.c (elfNN_aarch64_allocate_ifunc_dynrelocs):
Pass FALSE to _bfd_elf_allocate_ifunc_dyn_relocs.
ld/
PR ld/20253
* testsuite/ld-i386/i386.exp: Run PR ld/20253 tests.
* testsuite/ld-i386/no-plt.exp: Likewise.
* testsuite/ld-x86-64/no-plt.exp: Likewise.
* testsuite/ld-i386/pr13302.d: Remove .rel.plt section.
* testsuite/ld-ifunc/ifunc-13-i386.d: Likewise.
* testsuite/ld-ifunc/ifunc-13-x86-64.d: Likewise.
* testsuite/ld-ifunc/ifunc-15-i386.d: Likewise.
* testsuite/ld-ifunc/ifunc-15-x86-64.d: Likewise.
* testsuite/ld-x86-64/pr13082-5a.d: Likewise.
* testsuite/ld-x86-64/pr13082-5b.d: Likewise.
* testsuite/ld-x86-64/pr13082-6a.d: Likewise.
* testsuite/ld-x86-64/pr13082-6b.d: Likewise.
* testsuite/ld-i386/pr20244-2a.d: Remove .plt section.
* testsuite/ld-ifunc/ifunc-21-i386.d: Likewise.
* testsuite/ld-ifunc/ifunc-21-x86-64.d: Likewise.
* testsuite/ld-ifunc/ifunc-22-i386.d: Likewise.
* testsuite/ld-ifunc/ifunc-22-x86-64.d: Likewise.
* testsuite/ld-i386/pr20244-2b.d: Updated.
* testsuite/ld-i386/pr20244-2c.d: Likewise.
* testsuite/ld-ifunc/ifunc-18a-i386.d: Likewise.
* testsuite/ld-ifunc/ifunc-18a-x86-64.d: Likewise.
* testsuite/ld-ifunc/ifunc-18b-i386.d: Likewise.
* testsuite/ld-ifunc/ifunc-18b-x86-64.d: Likewise.
* testsuite/ld-i386/pr20253-1a.c: New file.
* testsuite/ld-i386/pr20253-1b.S: Likewise.
* testsuite/ld-i386/pr20253-1c.S: Likewise.
* testsuite/ld-i386/pr20253-1d.S: Likewise.
* testsuite/ld-i386/pr20253-2a.c: Likewise.
* testsuite/ld-i386/pr20253-2b.S: Likewise.
* testsuite/ld-i386/pr20253-2c.S: Likewise.
* testsuite/ld-i386/pr20253-2d.S: Likewise.
* testsuite/ld-i386/pr20253-3.d: Likewise.
* testsuite/ld-i386/pr20253-3.s: Likewise.
* testsuite/ld-i386/pr20253-4.s: Likewise.
* testsuite/ld-i386/pr20253-4a.d: Likewise.
* testsuite/ld-i386/pr20253-4b.d: Likewise.
* testsuite/ld-i386/pr20253-4c.d: Likewise.
* testsuite/ld-i386/pr20253-5.d: Likewise.
* testsuite/ld-i386/pr20253-5.s: Likewise.
* testsuite/ld-ifunc/ifunc-23-x86.s: Likewise.
* testsuite/ld-ifunc/ifunc-23a-x86.d: Likewise.
* testsuite/ld-ifunc/ifunc-23b-x86.d: Likewise.
* testsuite/ld-ifunc/ifunc-23c-x86.d: Likewise.
* testsuite/ld-ifunc/ifunc-24-x86.s: Likewise.
* testsuite/ld-ifunc/ifunc-24a-x86.d: Likewise.
* testsuite/ld-ifunc/ifunc-24b-x86.d: Likewise.
* testsuite/ld-ifunc/ifunc-24c-x86.d: Likewise.
* testsuite/ld-ifunc/ifunc-25-x86.s: Likewise.
* testsuite/ld-ifunc/ifunc-25a-x86.d: Likewise.
* testsuite/ld-ifunc/ifunc-25b-x86.d: Likewise.
* testsuite/ld-ifunc/ifunc-25c-x86.d: Likewise.
* testsuite/ld-x86-64/pr20253-1.s: Likewise.
* testsuite/ld-x86-64/pr20253-1a.d: Likewise.
* testsuite/ld-x86-64/pr20253-1b.d: Likewise.
* testsuite/ld-x86-64/pr20253-1c.d: Likewise.
* testsuite/ld-x86-64/pr20253-1d.d: Likewise.
* testsuite/ld-x86-64/pr20253-1e.d: Likewise.
* testsuite/ld-x86-64/pr20253-1f.d: Likewise.
* testsuite/ld-x86-64/pr20253-1g.d: Likewise.
* testsuite/ld-x86-64/pr20253-1h.d: Likewise.
* testsuite/ld-x86-64/pr20253-1i.d: Likewise.
* testsuite/ld-x86-64/pr20253-1j.d: Likewise.
* testsuite/ld-x86-64/pr20253-1k.d: Likewise.
* testsuite/ld-x86-64/pr20253-1l.d: Likewise.
* testsuite/ld-x86-64/pr20253-2a.c: Likewise.
* testsuite/ld-x86-64/pr20253-2b.S: Likewise.
* testsuite/ld-x86-64/pr20253-2c.S: Likewise.
* testsuite/ld-x86-64/pr20253-2d.S: Likewise.
* testsuite/ld-x86-64/pr20253-3.d: Likewise.
* testsuite/ld-x86-64/pr20253-3.s: Likewise.
* testsuite/ld-x86-64/pr20253-4.s: Likewise.
* testsuite/ld-x86-64/pr20253-4a.d: Likewise.
* testsuite/ld-x86-64/pr20253-4b.d: Likewise.
* testsuite/ld-x86-64/pr20253-4c.d: Likewise.
* testsuite/ld-x86-64/pr20253-4d.d: Likewise.
* testsuite/ld-x86-64/pr20253-4e.d: Likewise.
* testsuite/ld-x86-64/pr20253-4f.d: Likewise.
* testsuite/ld-x86-64/pr20253-5.s: Likewise.
* testsuite/ld-x86-64/pr20253-5a.d: Likewise.
* testsuite/ld-x86-64/pr20253-5b.d: Likewise.
* testsuite/ld-ifunc/ifunc-18a-i386.d: Remove extra IRELATIVE
relocation.
* testsuite/ld-ifunc/ifunc-18a-x86-64.d: Likewise.
* testsuite/ld-ifunc/ifunc-18b-i386.d: Likewise.
* testsuite/ld-ifunc/ifunc-18b-x86-64.d: Likewise.
* testsuite/ld-ifunc/ifunc-18a.s: Fix a typo.
* testsuite/ld-x86-64/x86-64.exp: Run pr20253-1 tests.
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Originally intended to be committed on 2013-01-17 in
675921c059dbaddd02ab2eb8a1eaf77b3ac727dd (Test case for the
jit-reader), but by mistake the files were not added. Fortunately
they still work.
gdb/testsuite/ChangeLog:
2016-06-17 Sanjoy Das <sanjoy@playingwithpointers.com>
* gdb.base/jit-reader.exp: New file.
* gdb.base/jithost.c: New file.
* gdb.base/jithost.h: New file.
* gdb.base/jitreader.c : New file.
* gdb.base/jit-protocol.h: New file.
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2016-06-17 Thomas Preud'homme <thomas.preudhomme@arm.com>
Tony Wang <tony.wang@arm.com>
bfd/
* elf32-arm.c (elf32_arm_stub_long_branch_thumb2_only): Define stub
sequence.
(stub_long_branch_thumb2_only): Define stub.
(arm_stub_is_thumb): Add case for arm_stub_long_branch_thumb2_only.
(arm_stub_long_branch_thumb2_only): Likewise.
(arm_type_of_stub): Use arm_stub_long_branch_thumb2_only for Thumb-2
capable targets.
ld/
* testsuite/ld-arm/arm-elf.exp (Thumb-Thumb farcall M profile):
Assemble for ARMv6-M.
(Thumb2-Thumb2 farcall M profile): New testcase.
* testsuite/ld-arm/farcall-thumb2-thumb2-m.d: New file.
* testsuite/ld-arm/jump-reloc-veneers-cond-long-backward.d: Update to
reflect the use of Thumb-2 veneers for Thumb-2 capable targets.
* testsuite/ld-arm/jump-reloc-veneers-cond-long.d: Likewise.
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This patch extends step-over-syscall.exp by setting different values to
detach-on-fork and follow-fork.
gdb/testsuite:
2016-06-17 Yao Qi <yao.qi@linaro.org>
* gdb.base/step-over-syscall.exp (break_cond_on_syscall): New
parameters follow_fork and detach_on_fork. Set follow-fork-mode
and detach-on-fork. Adjust tests.
(top level): Invoke break_cond_on_syscall with combinations of
syscall, follow-fork-mode and detach-on-fork.
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When a thread is doing step-over with reinsert breakpoint, and the
instruction executed is a syscall doing vfork, both parent and child
share the memory, so the reinsert breakpoint in the space is visible
to both of them. Also, removing the reinsert breakpoints from the
child will effectively remove them from the parent. We should
carefully manipulate reinsert breakpoints for both processes.
What we are doing here is that
- uninsert reinsert breakpoints from the parent before cloning the
breakpoint list. We use "uninsert" instead of "remove", because
we need to "reinsert" them back after vfork is done. In fact,
"uninsert" removes them from both child and parent process space.
- reinsert breakpoints in parent process are still copied to child's
breakpoint list,
- remove them from child's breakpoint list as what we did for fork,
at this point, reinsert breakpoints are removed from the child and
the parent, but they are still tracked by the parent's breakpoint
list,
- once vfork is done, "reinsert" them back to the parent,
gdb/gdbserver:
2016-06-17 Yao Qi <yao.qi@linaro.org>
* linux-low.c (handle_extended_wait): Call
uninsert_reinsert_breakpoints for the parent process. Remove
reinsert breakpoints from the child process. Reinsert them to
the parent process when vfork is done.
* mem-break.c (uninsert_reinsert_breakpoints): New function.
(reinsert_reinsert_breakpoints): New function.
* mem-break.h (uninsert_reinsert_breakpoints): Declare
(reinsert_reinsert_breakpoints): Declare.
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When a thread is stepping over a syscall instruction with software
single step, GDBserver inserts reinsert breakpoints at the next pcs.
If the syscall call is fork, the forked child has reinsert breakpoint
in its space, and GDBserver clones parent's breakpoint list to child's.
When GDBserver resumes the child, its bp_reinsert is zero, but has
reinsert breakpoints, so the following assert is triggered if I apply
the patch extending step-over-syscall.exp.
gdb/gdbserver/linux-low.c:4292: A problem internal to GDBserver has been detected.^M
void linux_resume_one_lwp_throw(lwp_info*, int, int, siginfo_t*): Assertion `!has_reinsert_breakpoints (proc)' failed.
gdb/gdbserver:
2016-06-17 Yao Qi <yao.qi@linaro.org>
* linux-low.c (handle_extended_wait): If the parent is doing
step-over, remove the reinsert breakpoints from the forked child.
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This patch fixes a GDBserver crash when one thread is stepping over
a syscall instruction which is exit. Step-over isn't finished due
to the exit, but GDBserver doesn't clean up the state of step-over,
so in the wait next time, GDBserver will wait on step_over_bkpt,
which is already exited, and GDBserver crashes because
'requested_child' is NULL. See gdbserver logs below,
Need step over [LWP 14858]? yes, found breakpoint at 0x2aaaaad91307^M
proceed_all_lwps: found thread 14858 needing a step-over^M
Starting step-over on LWP 14858. Stopping all threads^M
>>>> entering void stop_all_lwps(int, lwp_info*)
....
<<<< exiting void stop_all_lwps(int, lwp_info*)^M
Done stopping all threads for step-over.^M
pc is 0x2aaaaad91307^M
Writing 0f to 0x2aaaaad91307 in process 14858^M
Could not find fast tracepoint jump at 0x2aaaaad91307 in list (uninserting).^M
pending reinsert at 0x2aaaaad91307^M
step from pc 0x2aaaaad91307^M
Resuming lwp 14858 (step, signal 0, stop not expected)^M
# Start step-over for LWP 14858
>>>> entering ptid_t linux_wait_1(ptid_t, target_waitstatus*, int)
....
LLFE: 14858 exited.
...
<<<< exiting ptid_t linux_wait_1(ptid_t, target_waitstatus*, int)
# LWP 14858 exited
.....
>>>> entering ptid_t linux_wait_1(ptid_t, target_waitstatus*, int)^M
linux_wait_1: [<all threads>]^M
step_over_bkpt set [LWP 14858.14858], doing a blocking wait
# but step_over_bkpt is still LWP 14858, which is wrong
The fix is to finish step-over if it is ongoing, and unsuspend other
threads. Without the fix in linux-low.c, GDBserver will crash in
with running gdb.base/step-over-exit.exp.
gdb/gdbserver:
2016-06-17 Yao Qi <yao.qi@linaro.org>
* linux-low.c (unsuspend_all_lwps): Declare.
(linux_low_filter_event): If thread exited, call finish_step_over.
If step-over is finished, unsuspend other threads.
gdb/testsuite:
2016-06-17 Yao Qi <yao.qi@linaro.org>
* gdb.base/step-over-exit.c: New.
* gdb.base/step-over-exit.exp: New.
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This patch adds more asserts, so the incorrect or sub-optimal
reinsert breakpoints manipulations (from the tests in the following
patches) can trigger them.
gdb/gdbserver:
2016-06-17 Yao Qi <yao.qi@linaro.org>
* linux-low.c (linux_resume_one_lwp_throw): Assert
has_reinsert_breakpoints returns false.
* mem-break.c (delete_disabled_breakpoints): Assert
bp type isn't reinsert_breakpoint.
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This patch adds some sanity check that reinsert breakpoints must be
there when doing step-over on software single step target. The check
triggers an assert when running forking-threads-plus-breakpoint.exp
on arm-linux target,
gdb/gdbserver/linux-low.c:4714: A problem internal to GDBserver has been detected.^M
int finish_step_over(lwp_info*): Assertion `has_reinsert_breakpoints ()' failed.
the error happens when GDBserver has already resumed a thread of
process A for step-over (and wait for it hitting reinsert breakpoint),
but receives detach request for process B from GDB, which is shown in
the backtrace below,
(gdb) bt
#2 0x000228aa in finish_step_over (lwp=0x12bbd98) at /home/yao/SourceCode/gnu/gdb/git/gdb/gdbserver/linux-low.c:4703
#3 0x00025a50 in finish_step_over (lwp=0x12bbd98) at /home/yao/SourceCode/gnu/gdb/git/gdb/gdbserver/linux-low.c:4749
#4 complete_ongoing_step_over () at /home/yao/SourceCode/gnu/gdb/git/gdb/gdbserver/linux-low.c:4760
#5 linux_detach (pid=25228) at /home/yao/SourceCode/gnu/gdb/git/gdb/gdbserver/linux-low.c:1503
#6 0x00012bae in process_serial_event () at /home/yao/SourceCode/gnu/gdb/git/gdb/gdbserver/server.c:3974
#7 handle_serial_event (err=<optimized out>, client_data=<optimized out>) at /home/yao/SourceCode/gnu/gdb/git/gdb/gdbserver/server.c:4347
#8 0x00016d68 in handle_file_event (event_file_desc=<optimized out>) at /home/yao/SourceCode/gnu/gdb/git/gdb/gdbserver/event-loop.c:429
#9 0x000173ea in process_event () at /home/yao/SourceCode/gnu/gdb/git/gdb/gdbserver/event-loop.c:184
#10 start_event_loop () at /home/yao/SourceCode/gnu/gdb/git/gdb/gdbserver/event-loop.c:547
#11 0x0000aa2c in captured_main (argv=<optimized out>, argc=<optimized out>) at /home/yao/SourceCode/gnu/gdb/git/gdb/gdbserver/server.c:3719
#12 main (argc=<optimized out>, argv=<optimized out>) at /home/yao/SourceCode/gnu/gdb/git/gdb/gdbserver/server.c:3804
the sanity check tries to find the reinsert breakpoint from process B,
but nothing is found. It is wrong, we need to search in process A,
since we started step-over of a thread of process A.
(gdb) p lwp->thread->entry.id
$3 = {pid = 25120, lwp = 25131, tid = 0}
(gdb) p current_thread->entry.id
$4 = {pid = 25228, lwp = 25228, tid = 0}
This patch switched current_thread to the thread we are doing step-over
in finish_step_over.
gdb/gdbserver:
2016-06-17 Yao Qi <yao.qi@linaro.org>
* linux-low.c (maybe_hw_step): New function.
(linux_resume_one_lwp_throw): Call maybe_hw_step.
(finish_step_over): Switch current_thread to lwp temporarily,
and assert has_reinsert_breakpoints returns true.
(proceed_one_lwp): Call maybe_hw_step.
* mem-break.c (has_reinsert_breakpoints): New function.
* mem-break.h (has_reinsert_breakpoints): Declare.
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gdb/ChangeLog:
* Makefile.in (ALL_TARGET_OBS): Add nds32-tdep.o.
(HFILES_NO_SRCDIR): Add nds32-tdep.h.
(ALLDEPFILES): Add nds32-tdep.c.
* NEWS: Mention new NDS32 port.
* configure.tgt: Add NDS32.
* nds32-tdep.c: New file.
* nds32-tdep.h: New file.
* features/Makefile (XMLTOC): Add nds32.xml.
* features/nds32-core.xml: New file.
* features/nds32-fpu.xml: New file.
* features/nds32-system.xml: New file.
* features/nds32.c: New file (generated).
* features/nds32.xml: New file.
gdb/doc/ChangeLog:
* gdb.texinfo (Standard Target Features): Document NDS32 features.
(NDS32 Features): New Section.
gdb/testsuite/ChangeLog:
* gdb.base/float.exp: Add target check for nds32*-*-*.
* gdb.xml/tdesc-regs.exp: Set core-regs for nds32*-*-*.
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This patch fixes and expands the definition of the read/write
instructions for ancillary-state, privileged and hyperprivileged
registers in opcodes.
It also adds support for three new v9m hyperprivileged registers:
%hmcdper, %hmcddfr and %hva_mask_nz.
Finally, the patch expands existing tests (and adds several new ones) in
order to cover all the read/write instructions in all its variants.
opcodes/ChangeLog:
2016-06-17 Jose E. Marchesi <jose.marchesi@oracle.com>
* sparc-opc.c (rdasr): New macro.
(wrasr): Likewise.
(rdpr): Likewise.
(wrpr): Likewise.
(rdhpr): Likewise.
(wrhpr): Likewise.
(sparc_opcodes): Use the macros above to fix and expand the
definition of read/write instructions from/to
asr/privileged/hyperprivileged instructions.
* sparc-dis.c (v9_hpriv_reg_names): Add %hmcdper, %hmcddfr and
%hva_mask_nz. Prefer softint_set and softint_clear over
set_softint and clear_softint.
(print_insn_sparc): Support %ver in Rd.
gas/ChangeLog:
2016-06-17 Jose E. Marchesi <jose.marchesi@oracle.com>
* config/tc-sparc.c (hpriv_reg_table): Add registers %hmcdper,
%hmcddfr and %hva_mask_nz.
(sparc_ip): New handling of asr/privileged/hyperprivileged
registers, adapted to the new form of the sparc opcodes table.
* testsuite/gas/sparc/rdasr.s: New file.
* testsuite/gas/sparc/rdasr.d: Likewise.
* testsuite/gas/sparc/wrasr.s: Likewise.
* testsuite/gas/sparc/wrasr.d: Likewise.
* testsuite/gas/sparc/sparc.exp (sparc_elf_setup): Add rdasr and
wrasr tests.
* testsuite/gas/sparc/rdpr.d: Use -Av9m, as some privileged
registers require it.
* testsuite/gas/sparc/wrpr.s: Complete to cover all privileged
registers and write instruction modalities.
* testsuite/gas/sparc/wrpr.d: Likewise.
* testsuite/gas/sparc/rdhpr.s: Likewise for hyperprivileged
registers.
* testsuite/gas/sparc/rdhpr.d: Likewise.
* testsuite/gas/sparc/wrhpr.s: Likewise.
* testsuite/gas/sparc/wrhpr.d: Likewise.
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This patch marks the SPARC instructions in the opcodes table with their
proper opcode architectures, and makes the assembler aware of them.
This allows the assembler to properly realize when a new instruction
needs a higher architecture (after v9b) and to react accordingly
emitting an error message or bumping the architecture.
It also expands architecture mismatch tests to cover architectures
higher than v9b, and fixes a couple of minor bugs in the GAS testsuite.
opcodes/ChangeLog:
2016-06-17 Jose E. Marchesi <jose.marchesi@oracle.com>
* sparc-opc.c (sparc_opcodes): Adjust instructions opcode
architecture according to the hardware capabilities they require.
(sparc_priv_regs): New table.
(sparc_hpriv_regs): Likewise.
(sparc_asr_regs): Likewise.
(v9anotv9m): Define.
gas/ChangeLog:
2016-06-17 Jose E. Marchesi <jose.marchesi@oracle.com>
* config/tc-sparc.c (sparc_arch_table): adjust the GAS
architectures to use the right opcode architecture.
(sparc_md_end): Handle v9{c,d,e,v,m}.
(sparc_ip): Fix some comments.
* testsuite/gas/sparc/ldx_efsr.d: Fix the architecture of this
instruction, which is v9d.
* testsuite/gas/sparc/mwait.s: Remove the `rd %mwait,%g1'
instruction from the test, as %mwait is not readable.
* testsuite/gas/sparc/mwait.d: Likewise.
* testsuite/gas/sparc/mism-1.s: Expand to check v9b and v9e
mismatch architecture errors.
* testsuite/gas/sparc/mism-2.s: New file.
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The current sparc assembler breaks when the name of an ancillary-state
register, privileged register or hyperprivileged register has a
%-pseudo-operation name as a prefix. For example, %hmcdper and %hm(),
or %hintp and %hi().
This patch fixes it by introducing a new table `perc_table' (for
%-table) that contains an entry for every %name supported by the
assembler, other than the general registers. This table is used to
detect name collisions when the assembler tries to detect a %-pseudo-op.
This patch also fixes a related bug, making sure that v9a_asr_table and
hpriv_reg_table are sorted in reverse lexicographic order, as otherwise
the search code may fail.
gas/ChangeLog:
2016-06-17 Jose E. Marchesi <jose.marchesi@oracle.com>
* config/tc-sparc.c (priv_reg_table): Use NULL instead of the
empty string to mark the end of the array.
(hpriv_reg_table): Likewise.
(v9a_asr_table): Likewise.
(cmp_reg_entry): Handle entries with NULL names.
(F_POP_V9): Define.
(F_POP_PCREL): Likewise.
(F_POP_TLS_CALL): Likewise.
(F_POP_POSTFIX): Likewise.
(struct pop_entry): New type.
(pop_table): New variable.
(enum pop_entry_type): New type.
(struct perc_entry): Likewise.
(NUM_PERC_ENTRIES): Define.
(perc_table): New variable.
(cmp_perc_entry): New function.
(md_begin): Sort hpriv_reg_table and v9a_asr_table, and initialize
perc_table.
(sparc_ip): Handle entries with NULL names in priv_reg_table,
hpriv_reg_table and v9a_asr_table. Use perc_table to handle
%-pseudo-ops.
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numbers.
This patch adds support for the opcode architectures
SPARC_OPCODE_ARCH_V9{C,D,E,V,M} and its associated BFD machine numbers
bfd_mach_sparc_v9{c,d,e,v,m} and bfd_mach_sparc_v8plus{c,d,e,v,m}.
Note that for arches up to v9b (UltraSPARC III), the detection of the
BFD machine type was based on the bits in the e_machine field of the ELF
header. However, there are no more available bits in that field, so
this patch takes the approach of using the hardware capabilities stored
in the object attributes HWCAPS/HWCAPS2 in order to characterize the
machine the object was built for.
bfd/ChangeLog:
2016-06-17 Jose E. Marchesi <jose.marchesi@oracle.com>
* archures.c (bfd_mach_sparc_v8plusc): Define.
(bfd_mach_sparc_v9c): Likewise.
(bfd_mach_sparc_v8plusd): Likewise.
(bfd_mach_sparc_v9d): Likewise.
(bfd_mach_sparc_v8pluse): Likewise.
(bfd_mach_sparc_v9e): Likewise.
(bfd_mach_sparc_v8plusv): Likewise
(bfd_mach_sparc_v9v): Likewise.
(bfd_mach_sparc_v8plusm): Likewise.
(bfd_mach_sparc_v9m): Likewise.
(bfd_mach_sparc_v9_p): Adapt to v8plusm and v9m.
(bfd_mach_sparc_64bit_p): Likewise.
* bfd-in2.h: Regenerate.
* cpu-sparc.c (arch_info_struct): Add entries for
bfd_mach_sparc_v8plus{c,d,e,v,m} and bfd_mach_sparc_v9{c,d,e,v,m}.
* aoutx.h (machine_type): Handle bfd_mach_sparc_v8plus{c,d,e,v,m}
and bfd_mach_sparc_v9{c,d,e,v,m}.
* elf32-sparc.c (elf32_sparc_final_write_processing): Likewise.
* elfxx-sparc.c (_bfd_sparc_elf_object_p): Likewise.
include/ChangeLog:
2016-06-17 Jose E. Marchesi <jose.marchesi@oracle.com>
* opcode/sparc.h (enum sparc_opcode_arch_val): Add
SPARC_OPCODE_ARCH_V9C, SPARC_OPCODE_ARCH_V9D,
SPARC_OPCODE_ARCH_V9E, SPARC_OPCODE_ARCH_V9V and
SPARC_OPCODE_ARCH_V9M.
opcodes/ChangeLog:
2016-06-17 Jose E. Marchesi <jose.marchesi@oracle.com>
* sparc-dis.c (MASK_V9): Add SPARC_OPCODE_ARCH_V9{C,D,E,V,M}.
(compute_arch_mask): Handle bfd_mach_sparc_v8plus{c,d,e,v,m} and
bfd_mach_sparc_v9{c,d,e,v,m}.
* sparc-opc.c (MASK_V9C): Define.
(MASK_V9D): Likewise.
(MASK_V9E): Likewise.
(MASK_V9V): Likewise.
(MASK_V9M): Likewise.
(v6): Add MASK_V9{C,D,E,V,M}.
(v6notlet): Likewise.
(v7): Likewise.
(v8): Likewise.
(v9): Likewise.
(v9andleon): Likewise.
(v9a): Likewise.
(v9b): Likewise.
(v9c): Define.
(v9d): Likewise.
(v9e): Likewise.
(v9v): Likewise.
(v9m): Likewise.
(sparc_opcode_archs): Add entry for v9{c,d,e,v,m}.
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commit bf52d7c72035679e6b3ab601133c56a4388f4dc9
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Wed Jun 15 10:35:38 2016 -0700
Don't check undefined symbol for IFUNC reloc
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Since x86 elf_*_check_relocs is called after all symbols have been
resolved, there is no need to check undefined symbols for relocations
against IFUNC symbols.
bfd/
* elf32-i386.c (elf_i386_check_relocs): Don't check undefined
symbols for relocations against IFUNC symbols.
* elf64-x86-64.c (elf_x86_64_check_relocs): Likewise.
ld/
* testsuite/ld-i386/i386.exp: Run pr19636-2e-nacl.
* testsuite/ld-i386/pr19636-2e.d: Skip for NaCl targets.
Remove .rel.plt section.
* testsuite/ld-i386/pr19636-2e-nacl.d: New file.
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This was broken by 4ade44b727ee77adaa9c22719935d012e253a5e6,
which changed the calculation to use the .rela.plt linker section
instead of its output section - thus skipping .rela.iplt .
Fix the calculations to include it.
bfd/ChangeLog:
* elf32-s390.c (elf_s390_finish_dynamic_sections): Include
.rela.iplt in DT_PLTRELSZ.
* elf64-s390.c (elf_s390_finish_dynamic_sections): Likewise,
for DT_PLTRELSZ and DT_RELASZ as well.
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Don't do anything special with non-loaded, non-alloced sections.
In particular, any relocs in such sections should not affect GOT
and PLT reference counting (ie. we don't allow them to create GOT
or PLT entries), there's no possibility or desire to optimize TLS
relocs, and there's not much point in propagating relocs to shared
libs that the dynamic linker won't relocate.
* elf32-i386.c (elf_i386_check_relocs): Skip relocations in
non-loaded, non-alloced sections.
* elf64-x86-64.c (elf_x86_64_check_relocs): Likewise.
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* elf32-i386.c (elf_i386_check_relocs): Check SEC_ALLOC before
allocating dynamic relocation.
* elf64-x86-64.c (elf_x86_64_check_relocs): Likewise.
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* testsuite/ld-i386/no-plt-check1a.S (check): Test static
function pointer.
* testsuite/ld-i386/no-plt-check1b.S (check): Likewise.
* testsuite/ld-x86-64/no-plt-check1.S (check): Likewise.
* testsuite/ld-i386/no-plt-extern1a.S (func_p): New. Static
function pointer.
* testsuite/ld-i386/no-plt-extern1b.S (func_p): Likewise.
* testsuite/ld-x86-64/no-plt-extern1.S (func_p): Likewise.
* testsuite/ld-i386/no-plt-1a.dd: Updated.
* testsuite/ld-i386/no-plt-1b.dd: Likewise.
* testsuite/ld-i386/no-plt-1c.dd: Likewise.
* testsuite/ld-i386/no-plt-1d.dd: Likewise.
* testsuite/ld-i386/no-plt-1e.dd: Likewise.
* testsuite/ld-i386/no-plt-1f.dd: Likewise.
* testsuite/ld-i386/no-plt-1g.dd: Likewise.
* testsuite/ld-i386/no-plt-1h.dd: Likewise.
* testsuite/ld-i386/no-plt-1i.dd: Likewise.
* testsuite/ld-i386/no-plt-1j.dd: Likewise.
* testsuite/ld-x86-64/no-plt-1a.dd: Likewise.
* testsuite/ld-x86-64/no-plt-1b.dd: Likewise.
* testsuite/ld-x86-64/no-plt-1c.dd: Likewise.
* testsuite/ld-x86-64/no-plt-1d.dd: Likewise.
* testsuite/ld-x86-64/no-plt-1e.dd: Likewise.
* testsuite/ld-x86-64/no-plt-1f.dd: Likewise.
* testsuite/ld-x86-64/no-plt-1g.dd: Likewise.
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binutils* readelf.c (is_24bit_abs_reloc): Add support for R_FT32_20
reloc.
gas * config/tc-ft32.c (md_assemble): Call dwarf2_emit_insn with the
instruction size.
* config/tc-mcore.c (md_assemble): Likewise.
* config/tc-mn10200.c (md_assemble): Likewise.
* config/tc-moxie.c (md_assemble): Likewise.
* config/tc-pj.c (md_apply_fix): Handle BFD_RELOC_PJ_CODE_REL32.
* testsuite/gas/all/gas.exp (diff1 test): Alpha sort list of
exception targets. Add alpha, hppa, microblaze and rl78 to list
of exceptions.
(forward): Add microblaze to list of exceptions.
(fwdexp): Add alpha to list of exceptions.
(redef2): Add arm-epoc-pe and rl78 to list of exceptions.
(redef3): Add rl78 and x86_64 cygwin to list of exceptions.
(do_930509a): Alpha sort list of exception targets. Add h8300 and
mn10200 to list of exceptions.
(align2): Expect to fail for nds32.
(cond): Add alpha and rl78 to list of exceptions.
* testsuite/gas/all/none.d: Skip for ft32 and hppa.
* testsuite/gas/all/string.d: Skip for tic4x.
* testsuite/gas/alpha/alpha.exp: Note that the alpha-linuxecoff
target does not support ELF.
* testsuite/gas/arm/blx-bl-convert.dL Skip for the nto target.
* testsuite/gas/cfi/cfi-alpha-2.d: All extended format names.
* testsuite/gas/cfi/cfi.exp: Alpha sort list of targets. Skip SH
tests for sh-pe and sh-rtemscoff targets.
* testsuite/gas/elf/elf.exp (redef): Add rl78, xgate and vax to
list of exceptions.
(type): Run the noifunc version for alpha-freebsd and visium.
* testsuite/gas/elf/warn-2.s: Do not expect to fail on the mcore,
mn10200 or moxie targets.
* testsuite/gas/ft32/insn.d: Update expected disassembly.
* testsuite/gas/i386/i386.exp (x86-64-pcrel): Skip for cygwin
targets.
* testsuite/gas/lns/lns.exp (lns-common-1): No longer skip for
mcore and rx targets.
* testsuite/gas/macros/macros.exp (dot): Add exceptions for ns32k,
rl78 and vax.
(purge): Expect to fail on the ns32k and vax.
* testsuite/gas/nds32/alu-2.d: Update expected disassembly.
* testsuite/gas/nds32/ls.d: Likewise.
* testsuite/gas/nds32/sys-reg.d: Likewise.
* testsuite/gas/nds32/usr-spe-reg.d: Likewise.
* testsuite/gas/pe/aligncomm-d.d: Skip for the sh.
* testsuite/gas/pe/section-align-3.d: Likewise.
* testsuite/gas/pe/section-exclude.d: Likewise.
* testsuite/gas/ppc/test2xcoff32.d: Pass once all the required
data has been seen.
* testsuite/gas/ppc/textalign-xcoff-001.d: Fix up regexp to allow
for variations in whitespace.
* testsuite/gas/tilepro/t_constants.d: Pass once all the required
data has been seen.
* testsuite/gas/tilepro/t_constants.s (.safe_word): New macro.
Installs a 32-bit value without generating warnings on 64-bit
hosts.
Use the new macro to replace the .word directives.
opcodes * nds32-dis.c (nds32_parse_audio_ext): Change printing of integer
constants to match expected behaviour.
(nds32_parse_opcode): Likewise. Also for whitespace.
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The extract function used for some arc_s instructions was not
implemented, and instead always returned 0. Fixed in this commit.
opcodes/ChangeLog:
* arc-opc.c (extract_rhv1): Extract value from insn.
gas/ChangeLog:
* testsuite/gas/arc/add_s.d: New file.
* testsuite/gas/arc/add_s.s: New file.
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This patch fixes another edge case related to alignment property
records - reloc offsets adjacent to property record offsets were not
getting adjusted during relaxation.
bfd/
PR ld/20254
* elf32-avr.c (elf32_avr_relax_delete_bytes): Adjust reloc
offsets until reloc_toaddr.
ld/
PR ld/20254
* testsuite/ld-avr/avr-prop-6.d: New test.
* testsuite/ld-avr/avr-prop-6.s: New test.
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When committing three recent patches incorrect dates were left on the
ChangeLog entries in gas/ChangeLog and opcodes/ChangeLog. Fixed in this
commit.
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Type lengths are unsigned, so they are always greater than or equal to
zero. A check against the length of 'tgt_type' is retained to prevent
dividing by zero.
gdb/ChangeLog:
* v850-tdep.c (v850_use_struct_convention): Trim type length checks.
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gdb/ChangeLog:
* tui/tui-stack.c (tui_show_frame_info): Fix type mismatch.
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If the instruction in this case does not include an RA field, then 'ra'
is used uninitialized. Use the same idiom used elsewhere in this file of
initializing ra to zero before check for an RA field.
gdb/ChangeLog:
* rs6000-tdep.c (ppc_process_record_op31): Initialize ra.
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The size field was defined as an instance of an enum, but existing code
treats the size field as a plain integer containing a bit count.
include/ChangeLog:
* opcode/msp430-decode.h (MSP430_Size): Remove.
(Msp430_Opcode_Decoded): Change type of size to int.
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binutils/ChangeLog:
* objcopy.c (do_elf_stt_common): Use correct type.
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elf_{i386|x86_64}_reloc_type_class should return reloc_class_ifunc for
R_386_IRELATIVE/R_X86_64_IRELATIVE relocations. There is no need to
check symbol type for STN_UNDEF symbol index.
* elf32-i386.c (elf_i386_reloc_type_class): Check R_386_IRELATIVE.
Don't check symbol type for STN_UNDEF symbol index.
* elf64-x86-64.c (elf_x86_64_reloc_type_class): Check
R_X86_64_IRELATIVE. Don't check symbol type for STN_UNDEF symbol
index.
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