Age | Commit message (Collapse) | Author | Files | Lines |
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Since the linker created .TOC. symbol is placed at roughly .got+32k,
.toc input sections must be placed in or after .got if .toc entries
are accessed using 16-bit signed offset relocs. crt1.o contains such
a relocation.
PR gold/20717
* testsuite/pr20717.t: Add .got output section containing .toc.
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PR c++/78252
* cp-demangle.c (struct d_print_info): Add is_lambda_arg field.
(d_print_init): Initialize it.
(d_print_comp_inner) <DEMANGLE_COMPONENT_TEMPLATE_PARAM>: Check
is_lambda_arg for auto.
<DEMANGLE_COMPONENT_REFERENCE,
DEMANGLE_COMPONENT_RVALUE_REFERENCE>: Skip smashing check when
is_lambda_arg.
<DEMANGLE_COMPONENT_LAMBDA>: Increment is_lambda_arg around arg
printing.
* testsuite/demangle-expected: Add lambda auto mangling cases.
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cris_delayed_get_disassembler has an assert that exec_bfd can't be
NULL, but this assert can be triggered like this,
(gdb) set architecture cris
The target architecture is assumed to be cris
(gdb) disassemble 0x0,+4
Dump of assembler code from 0x0 to 0x4:
0x00000000:
../../binutils-gdb/gdb/cris-tdep.c:3798: internal-error: int cris_delayed_get_disassembler(bfd_vma, disassemble_info*): Assertion `exec_bfd != NULL' failed.
A problem internal to GDB has been detected,
further debugging may prove unreliable.
however, cris_get_disassembler does have code to handle the case that
bfd is NULL,
/* If there's no bfd in sight, we return what is valid as input in all
contexts if fed back to the assembler: disassembly *with* register
prefix. Unfortunately this will be totally wrong for v32. */
if (abfd == NULL)
return print_insn_cris_with_register_prefix;
This patch is to remove this assert.
gdb:
2016-12-12 Yao Qi <yao.qi@linaro.org>
PR tdep/20955
* cris-tdep.c (cris_delayed_get_disassembler): Remove the
assert.
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Nowadays, memory error in rx disassembly is not handled, so if I
start a fresh GDB, and disassemble,
(gdb) set architecture rx
The target architecture is assumed to be rx
(gdb) disassemble 0x0,+4
Dump of assembler code from 0x0 to 0x4:
0x00000000: brk
0x00000001: brk
0x00000002: brk
0x00000003: brk
the output is wrong. This patch adds code to call dis->memory_error_func
on memory error, and longjmp to print_insn_rx. With this patch applied,
(gdb) set architecture rx
The target architecture is assumed to be rx
(gdb) disassemble 0,+4
Dump of assembler code from 0x0 to 0x4:
0x00000000: Cannot access memory at address 0x0
opcodes:
2016-12-12 Yao Qi <yao.qi@linaro.org>
* rx-dis.c: Include <setjmp.h>
(struct private): New.
(rx_get_byte): Check return value of read_memory_func, and
call memory_error_func and OPCODES_SIGLONGJMP on error.
(print_insn_rx): Call OPCODES_SIGSETJMP.
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Nowadays, memory error in rl78 disassembly is not handled, so if I
start a fresh GDB, and disassemble,
(gdb) set architecture rl78
The target architecture is assumed to be rl78
(gdb) disassemble 0x0,+4
Dump of assembler code from 0x0 to 0x4:
0x00000000: nop
0x00000001: nop
0x00000002: nop
0x00000003: nop
the output is wrong. This patch adds code to call dis->memory_error_func
on memory error, and longjmp to print_insn_rl78_common. With this
patch applied,
(gdb) set architecture rl78
The target architecture is assumed to be rl78
(gdb) disassemble 0,+4
Dump of assembler code from 0x0 to 0x4:
0x00000000: Cannot access memory at address 0x0
opcodes:
2016-12-12 Yao Qi <yao.qi@linaro.org>
* rl78-dis.c: Include <setjmp.h>.
(struct private): New.
(rl78_get_byte): Check return value of read_memory_func, and
call memory_error_func and OPCODES_SIGLONGJMP on error.
(print_insn_rl78_common): Call OPCODES_SIGJMP.
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2016-12-01 Cary Coutant <ccoutant@gmail.com>
Igor Kudrin <ikudrin@accesssoftek.com>
PR gold/20717
* script-sections.cc (Script_sections): Set *keep to false when
no match.
2016-12-11 Igor Kudrin <ikudrin@accesssoftek.com>
PR gold/20717
* testsuite/Makefile.am (pr20717): New test.
* testsuite/Makefile.in: Regenerate.
* testsuite/pr20717.c: New test source file.
* testsuite/pr20717.sh: New test script.
* testsuite/pr20717.t: New test linker script.
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PR 16711 noted that gold allocates file space for BSS sections when using
a linker script. I've fixed that by rewriting set_section_addresses and
set_section_list_addresses to track the file offset separate from the
current virtual address, so that BSS sections do not move the file offset.
Now, if a series of BSS sections come at the end of a segment, we do not
allocate file space; but if a script forces them into the middle of a
segment, we will still allocate file space (matching Gnu ld behavior).
I've also added a warning when that happens.
That exposed another problem where orphan .bss sections were sometimes
placed in the middle of a segment. For example, if the script mentions
the .got section, but both .data and .bss are orphans, gold would put
both .data and .bss in front of .got. I've fixed that by ensuring that
orphan BSS sections are always placed after all other allocated sections.
It also exposed a problem where the SUBALIGN property is not handled
properly. The ld manual clearly states that it should override input section
alignment, whether greater or less than the given alignment, but gold would
only increase an input section's alignment. Gold would also place the output
section based on its original alignment before the SUBALIGN property took
effect, leading to a misaligned output section (where the input section
was properly aligned in memory, but was not aligned relative to the start
of the section), in violation of the ELF/gABI spec. I've fixed that by
making sure that the SUBALIGN property overrides the internal alignment of
the input sections as well as the external alignment of the output section.
This affected the behavior of script_test_2, which was written to expect
a misaligned section.
The net effect is, I think, improved compatibility with the BFD linker.
There are still cases where orphan placement differs, but the differences
should be rarer and less important. ALIGN and SUBALIGN behavior is closer,
but still not an exact match -- I still found cases where ld would create
a misaligned output section, and where gold will properly align it.
gold/
PR gold/16711
* output.cc (Output_section::set_final_data_size): Calculate data size
based on relative offset rather than file offset.
(Output_segment::set_section_addresses): Track file offset separately
from address offset.
(Output_segment::set_section_list_addresses): Add pfoff parameter.
Track file offset separately. Don't move file offset for BSS
sections.
* output.h (Output_segment::set_section_list_addresses): Add pfoff
parameter.
* script-sections.cc (Orphan_section_placement): Add PLACE_LAST_ALLOC.
(Orphan_section_placement::Orphan_section_placement): Initialize it.
(Orphan_section_placement::output_section_init): Track last allocated
section.
(Orphan_section_placement::find_place): Place BSS after last allocated
section.
(Output_section_element_input::set_section_addresses): Always override
input section alignment when SUBALIGN is specified.
(Output_section_definition::set_section_addresses): Override alignment
of output section when SUBALIGN is specified.
* testsuite/Makefile.am (script_test_15a, script_test_15b)
(script_test_15c): New test cases.
* testsuite/Makefile.in: Regenerate.
* testsuite/script_test_2.cc: Adjust expected layout.
* testsuite/script_test_15.c: New source file.
* testsuite/script_test_15a.sh: New shell script.
* testsuite/script_test_15a.t: New linker script.
* testsuite/script_test_15b.sh: New shell script.
* testsuite/script_test_15b.t: New linker script.
* testsuite/script_test_15c.sh: New shell script.
* testsuite/script_test_15c.t: New linker script.
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non-deterministic automake.
* Makefile.in: Regenerate.
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This code has never been used throughout the repository history, and
likely not before either, as due to the assymetry of MIPS16 instruction
set encoding there are no 32-bit shift operations having their immediate
shift count placed in the position of the usual `rx' instruction field.
gas/
* config/tc-mips.c (mips16_macro_build) <'>'>: Remove case.
include/
* opcode/mips.h: Remove references to `>' operand code.
opcodes/
* mips16-opc.c (decode_mips16_operand) <'>'>: Remove cases.
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Make the `e' operand code used with raw EXTEND instructions use the
hexadecimal rather than decimal format, for consistency with what is
actually produced by code in `print_insn_mips16' dedicated to EXTEND
disassembly. Due to that special handling the operand code is only
interpreted for assembly however, which accepts either format either
way, so there is no functional change here.
opcodes/
* mips16-opc.c (decode_mips16_operand) <'e'>: Use HINT rather
than UINT.
gas/
* testsuite/gas/mips/mips16-extend.d: New test.
* testsuite/gas/mips/mips16-extend.s: New test source.
* testsuite/gas/mips/mips.exp: Run the new test.
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Use a tab rather than a space to separate `extend' and its uninterpreted
argument output, like with regular instructions. Separate hexadecimal
halves of undecoded extended instructions output with a space instead of
presenting them concatenated.
opcodes/
* mips-dis.c (print_insn_mips16): Use a tab rather than a space
to separate `extend' and its uninterpreted argument output.
Separate hexadecimal halves of undecoded extended instructions
output.
binutils/
* testsuite/binutils-all/mips/mips16-extend-noinsn.d: New test.
* testsuite/binutils-all/mips/mips16-extend-noinsn.s: New test
source.
* testsuite/binutils-all/mips/mips.exp: Run the new test.
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gdb/ChangeLog:
2016-12-09 Pedro Alves <palves@redhat.com>
* Makefile.in (ALL_TARGET_OBS): Remove vax-obsd-tdep.o.
* alpha-fbsd-tdep.c (_initialize_alphafbsd_tdep): Adjust.
* alpha-nbsd-tdep.c: Move comment to _initialize_alphanbsd_tdep.
(alphanbsd_core_osabi_sniffer): Delete.
(_initialize_alphanbsd_tdep): No longer handle a.out.
* alpha-obsd-tdep.c (_initialize_alphaobsd_tdep): Adjust.
* amd64-fbsd-tdep.c (_initialize_amd64fbsd_tdep): Adjust.
* amd64-nbsd-tdep.c (_initialize_amd64nbsd_tdep): Adjust.
* amd64-obsd-tdep.c (amd64obsd_supply_regset)
(amd64obsd_combined_regset)
(amd64obsd_iterate_over_regset_sections, amd64obsd_core_init_abi):
Delete.
(_initialize_amd64obsd_tdep): Don't handle a.out.
* arm-nbsd-nat.c (struct md_core, fetch_core_registers)
(arm_netbsd_core_fns): Delete.
(_initialize_arm_netbsd_nat): Don't register arm_netbsd_core_fns.
* arm-nbsd-tdep.c (arm_netbsd_aout_init_abi)
(arm_netbsd_aout_osabi_sniffer): Delete.
(_initialize_arm_netbsd_tdep): Don't handle a.out.
* arm-obsd-tdep.c (armobsd_core_osabi_sniffer): Delete.
(_initialize_armobsd_tdep): Don't handle a.out.
* arm-tdep.c (arm_gdbarch_init): Remove bfd_target_aout_flavour
case.
* breakpoint.c (disable_breakpoints_in_unloaded_shlib): Remove
SunOS a.out handling.
* configure.tgt (vax-*-netbsd* | vax-*-knetbsd*-gnu): Remove
vax-obsd-tdep.o from gdb_target_objs.
(vax-*-openbsd*): Likewise.
(*-*-freebsd*): Adjust default gdb_osabi.
(*-*-openbsd*): Likewise.
* dbxread.c (block_address_function_relative): Delete.
(dbx_symfile_read): Remove reference to
block_address_function_relative.
(dbx_symfile_read): Don't call read_dbx_dynamic_symtab.
(read_dbx_dynamic_symtab): Delete.
(process_one_symbol): Remove references to
block_address_function_relative.
* defs.h (GDB_OSABI_FREEBSD_AOUT, GDB_OSABI_NETBSD_AOUT): Remove.
(GDB_OSABI_FREEBSD_ELF): Rename to ...
(GDB_OSABI_FREEBSD): ... this.
(GDB_OSABI_NETBSD_ELF): Rename to ...
(GDB_OSABI_NETBSD): ... this.
(GDB_OSABI_OPENBSD_ELF): Rename to ...
(GDB_OSABI_OPENBSD): ... this.
(GDB_OSABI_HPUX_ELF, GDB_OSABI_HPUX_SOM): Remove.
* fbsd-tdep.c: Adjust comment.
* hppa-nbsd-tdep.c (_initialize_hppanbsd_tdep): Adjust.
* hppa-obsd-tdep.c (GDB_OSABI_NETBSD_CORE): Delete.
(hppaobsd_core_osabi_sniffer): Delete.
(_initialize_hppabsd_tdep): Don't handle a.out.
* hppa-tdep.c (hppa_stub_frame_unwind_cache): Don't handle
GDB_OSABI_HPUX_SOM.
(hppa_gdbarch_init): Likewise.
* i386-bsd-tdep.c (i386bsd_aout_osabi_sniffer)
(i386bsd_core_osabi_sniffer, _initialize_i386bsd_tdep): Delete.
* i386-fbsd-tdep.c (i386fbsdaout_init_abi): Delete. Merge bits
with ...
(i386fbsd_init_abi): ... this.
(_initialize_i386fbsd_tdep): Don't handle a.out.
* i386-nbsd-tdep.c (_initialize_i386nbsd_tdep): Adjust.
* i386-obsd-tdep.c (i386obsd_aout_supply_regset)
(i386obsd_aout_gregset)
(i386obsd_aout_iterate_over_regset_sections): Delete.
(i386obsd_init_abi): Merge with i386obsd_elf_init_abi.
(i386obsd_aout_init_abi): Delete.
(_initialize_i386obsd_tdep): Don't handle a.out.
* m68k-bsd-tdep.c (m68kobsd_sigtramp_cache_init)
(m68kobsd_sigtramp): Delete.
(m68kbsd_init_abi): Merge with ...
(m68kbsd_elf_init_abi): ... this, and delete it.
(m68kbsd_aout_init_abi): Delete.
(m68kbsd_aout_osabi_sniffer, m68kbsd_core_osabi_sniffer): Delete.
(_initialize_m68kbsd_tdep): Don't handle a.out.
* mips-nbsd-tdep.c (_initialize_mipsnbsd_tdep): Adjust.
* mips64-obsd-tdep.c (_initialize_mips64obsd_tdep): Adjust.
* osabi.c (gdb_osabi_names): Remove "a.out" entries. Drop "ELF"
suffixes. Remove "HP-UX" entries.
(generic_elf_osabi_sniff_abi_tag_sections): Adjust.
(generic_elf_osabi_sniffer): No longer handle GDB_OSABI_HPUX_ELF.
Adjust.
(_initialize_ppcfbsd_tdep): Adjust.
* ppc-nbsd-tdep.c (_initialize_ppcnbsd_tdep): Adjust.
* ppc-obsd-tdep.c (GDB_OSABI_NETBSD_CORE)
(ppcobsd_core_osabi_sniffer): Delete.
(_initialize_ppcobsd_tdep): Don't handle a.out.
* rs6000-tdep.c (rs6000_gdbarch_init): Adjust.
* sh-nbsd-tdep.c (GDB_OSABI_NETBSD_CORE)
(shnbsd_core_osabi_sniffer): Delete.
(_initialize_shnbsd_tdep): Don't handle a.out.
* solib.c (clear_solib): Don't handle SunOS/a.out.
* sparc-nbsd-tdep.c (sparc32nbsd_init_abi): Make extern.
(sparc32nbsd_aout_init_abi): Delete.
(sparc32nbsd_elf_init_abi): Merged into sparc32nbsd_init_abi.
(sparcnbsd_aout_osabi_sniffer): Delete.
(GDB_OSABI_NETBSD_CORE, sparcnbsd_core_osabi_sniffer): Delete.
(_initialize_sparcnbsd_tdep): No longer handle a.out.
* sparc-obsd-tdep.c (sparc32obsd_init_abi)
(_initialize_sparc32obsd_tdep): Adjust.
* sparc-tdep.h (sparc32nbsd_elf_init_abi): Rename to ...
(sparc32nbsd_init_abi): ... this.
* sparc64-fbsd-tdep.c (_initialize_sparc64fbsd_tdep): Adjust.
* sparc64-nbsd-tdep.c (_initialize_sparc64nbsd_tdep): Adjust.
* sparc64-obsd-tdep.c (_initialize_sparc64obsd_tdep): Adjust.
* stabsread.c: Update comment.
* symmisc.c (print_objfile_statistics): Don't mention "a.out" in
output.
* vax-nbsd-tdep.c (_initialize_vaxnbsd_tdep): Adjust.
* vax-obsd-tdep.c: Delete file.
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ChangeLog entries are missed in my two previous commits.
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I build GDB with all targets enabled, and "set architecture rx",
GDB crashes,
(gdb) set architecture rx
Program received signal SIGSEGV, Segmentation fault.
append_flags_type_flag (type=0x20cc360, bitpos=bitpos@entry=0, name=name@entry=0xd27529 "C") at ../../binutils-gdb/gdb/gdbtypes.c:4926
4926 name);
(gdb) bt 10
#0 append_flags_type_flag (type=0x20cc360, bitpos=bitpos@entry=0, name=name@entry=0xd27529 "C") at ../../binutils-gdb/gdb/gdbtypes.c:4926
#1 0x00000000004ce725 in rx_gdbarch_init (info=..., arches=<optimized out>) at ../../binutils-gdb/gdb/rx-tdep.c:1051
#2 0x00000000006b05a4 in gdbarch_find_by_info (info=...) at ../../binutils-gdb/gdb/gdbarch.c:5269
#3 0x000000000060eee4 in gdbarch_update_p (info=...) at ../../binutils-gdb/gdb/arch-utils.c:557
#4 0x000000000060f8a8 in set_architecture (ignore_args=<optimized out>, from_tty=1, c=<optimized out>) at ../../binutils-gdb/gdb/arch-utils.c:531
#5 0x0000000000593d0b in do_set_command (arg=<optimized out>, arg@entry=0x20bee81 "rx ", from_tty=from_tty@entry=1, c=c@entry=0x20b1540)
at ../../binutils-gdb/gdb/cli/cli-setshow.c:455
#6 0x00000000007665c3 in execute_command (p=<optimized out>, p@entry=0x20bee70 "set architecture rx ", from_tty=1) at ../../binutils-gdb/gdb/top.c:666
#7 0x00000000006935f4 in command_handler (command=0x20bee70 "set architecture rx ") at ../../binutils-gdb/gdb/event-top.c:577
#8 0x00000000006938d8 in command_line_handler (rl=<optimized out>) at ../../binutils-gdb/gdb/event-top.c:767
#9 0x0000000000692c2c in gdb_rl_callback_handler (rl=0x20be7f0 "") at ../../binutils-gdb/gdb/event-top.c:200
The cause is that we want to access some builtin types in gdbarch init, but
it is not initialized yet. I fix it by creating the type when it is to be
used. We've already done this in sparc, sparc64 and m68k.
gdb:
2016-12-09 Yao Qi <yao.qi@linaro.org>
PR tdep/20954
* rx-tdep.c (rx_psw_type): New function.
(rx_fpsw_type): New function.
(rx_register_type): Call rx_psw_type and rx_fpsw_type.
(rx_gdbarch_init): Move code to rx_psw_type and
rx_fpsw_type.
gdb/testsuite:
2016-12-09 Yao Qi <yao.qi@linaro.org>
* gdb.base/all-architectures.exp.in: Remove kfail for "rx".
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I build GDB for all targets enabled. When I "set architecture rl78",
GDB crashes,
(gdb) set architecture rl78
Program received signal SIGSEGV, Segmentation fault.
append_flags_type_flag (type=0x20cc0e0, bitpos=bitpos@entry=0, name=name@entry=0x11dba3f "CY") at ../../binutils-gdb/gdb/gdbtypes.c:4926
4926 name);
(gdb) bt 10
#0 append_flags_type_flag (type=0x20cc0e0, bitpos=bitpos@entry=0, name=name@entry=0x11dba3f "CY") at ../../binutils-gdb/gdb/gdbtypes.c:4926
#1 0x00000000004aaca8 in rl78_gdbarch_init (info=..., arches=<optimized out>) at ../../binutils-gdb/gdb/rl78-tdep.c:1410
#2 0x00000000006b05a4 in gdbarch_find_by_info (info=...) at ../../binutils-gdb/gdb/gdbarch.c:5269
#3 0x000000000060eee4 in gdbarch_update_p (info=...) at ../../binutils-gdb/gdb/arch-utils.c:557
#4 0x000000000060f8a8 in set_architecture (ignore_args=<optimized out>, from_tty=1, c=<optimized out>) at ../../binutils-gdb/gdb/arch-utils.c:531
#5 0x0000000000593d0b in do_set_command (arg=<optimized out>, arg@entry=0x20be851 "rl78", from_tty=from_tty@entry=1, c=c@entry=0x20b1540)
at ../../binutils-gdb/gdb/cli/cli-setshow.c:455
#6 0x00000000007665c3 in execute_command (p=<optimized out>, p@entry=0x20be840 "set architecture rl78", from_tty=1) at ../../binutils-gdb/gdb/top.c:666
#7 0x00000000006935f4 in command_handler (command=0x20be840 "set architecture rl78") at ../../binutils-gdb/gdb/event-top.c:577
#8 0x00000000006938d8 in command_line_handler (rl=<optimized out>) at ../../binutils-gdb/gdb/event-top.c:767
#9 0x0000000000692c2c in gdb_rl_callback_handler (rl=0x20be890 "") at ../../binutils-gdb/gdb/event-top.c:200
The cause is that we want to access some builtin types in gdbarch init, but
it is not initialized yet. I fix it by creating the type when it is to be
used. We've already done this in sparc, sparc64 and m68k.
gdb:
2016-12-09 Yao Qi <yao.qi@linaro.org>
PR tdep/20953
* rl78-tdep.c (rl78_psw_type): New function.
(rl78_register_type): Call rl78_psw_type.
(rl78_gdbarch_init): Move code to rl78_psw_type.
gdb/testsuite:
2016-12-09 Yao Qi <yao.qi@linaro.org>
* gdb.base/all-architectures.exp.in: Remove kfail for rl78.
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This adds a test that exposes several problems fixed by earlier
patches:
#1 - Buffer overrun when host/target formats match, but sizes don't.
https://sourceware.org/ml/gdb-patches/2016-03/msg00125.html
#2 - Missing handling for FR-V FR300.
https://sourceware.org/ml/gdb-patches/2016-03/msg00117.html
#3 - BFD architectures with spaces in their names (v850).
https://sourceware.org/ml/binutils/2016-03/msg00108.html
#4 - The OS ABI names with spaces issue.
https://sourceware.org/ml/gdb-patches/2016-03/msg00116.html
#5 - Bogus HP/PA long double format.
https://sourceware.org/ml/gdb-patches/2016-03/msg00122.html
#6 - Cris big endian internal error.
https://sourceware.org/ml/gdb-patches/2016-03/msg00126.html
#7 - Several PowerPC bfd archs/machines not handled by gdb.
https://sourceware.org/bugzilla/show_bug.cgi?id=19797
And hopefully helps catch others in the future.
This started out as a test that simply did,
gdb -ex "print 1.0L"
to exercise #1 above.
Then to cover both 32-bit target / 64-bit host and the converse, I
thought of having the testcase print the floats twice, once with the
architecture set to "i386" and then to "i386:x86-64". This way it
wouldn't matter whether gdb was built as 32-bit or a 64-bit program.
Then I thought that other archs might have similar host/target
floatformat conversion issues as well. Instead of hardcoding some
architectures in the test file, I thought we could just iterate over
all bfd architectures and OS ABIs supported by the gdb build being
tested. This is what then exposed all the other problems listed
above...
With an --enable-targets=all, this exercises over 14 thousand
combinations. If left in a single test file, it all consistenly runs
in under a minute on my machine (An Intel i7-4810MQ @ 2.8 MHZ running
Fedora 23). Split in 8 chunks, as in this commit, it runs in around
25 seconds, with make -j8.
To avoid flooding the gdb.sum file, it avoids calling "pass" on each
tested combination/iteration. I'm explicitly not implementing that by
passing an empty message to gdb_test / gdb_test_multiple, because I
still want a FAIL to be logged in gdb.sum. So instead this puts the
internal passes in the gdb.log file, only, prefixed "IPASS:", for
internal pass. TBC, if some iteration fails, it'll still show up as
FAIL in gdb.sum. If this is an approach that takes on, I can see us
extending the common bits to support it for all testcases.
gdb/testsuite/ChangeLog:
2016-12-09 Pedro Alves <palves@redhat.com>
* gdb.base/all-architectures-0.exp: New file.
* gdb.base/all-architectures-1.exp: New file.
* gdb.base/all-architectures-2.exp: New file.
* gdb.base/all-architectures-3.exp: New file.
* gdb.base/all-architectures-4.exp: New file.
* gdb.base/all-architectures-5.exp: New file.
* gdb.base/all-architectures-6.exp: New file.
* gdb.base/all-architectures-7.exp: New file.
* gdb.base/all-architectures.exp.in: New file.
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This patch change aarch prologue analyzer using code cache, in order
to improve the performance of remote debugging.
gdb.perf/skip-prologue.exp (measured by wall-time) is improved when
the program is compiled without debug information.
Original Patched Original Patched
without dbg without dbg with dbg with dbg
/ 11.1635239124 9.99472999573 9.65339517593 9.66648793221
-fstack-protector-all 11.2560930252 9.338118 9.63896489143 9.59474396706
gdb:
2016-12-9 Yao Qi <yao.qi@linaro.org>
* aarch64-tdep.c (instruction_reader::read): Call
read_code_unsigned_integer instead of
read_memory_unsigned_integer.
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This patch change arm prologue analyzer using code cache, in order
to improve the performance of remote debugging.
gdb.perf/skip-prologue.exp (measured by wall-time) is improved a lot,
Original Patched Original Patched
without dbg without dbg with dbg with dbg
-marm 14.166741848 9.32852292061 11.4908499718 9.16302204132
-marm 14.6705040932 9.34849786758 18.2788009644 9.14823913574
\-fstack-protector-all
-mthumb 34.4391930103 10.6062178612 13.7886838913 10.3094120026
-mthumb
\-fstack-protector-all 34.9310460091 10.6413481236 25.3875930309 10.6294929981
gdb:
2016-12-09 Yao Qi <yao.qi@linaro.org>
* arm-tdep.c (skip_prologue_function): Call
read_code_unsigned_integer instead of
read_memory_unsigned_integer.
(thumb_analyze_prologue): Likewise.
(arm_analyze_load_stack_chk_guard): Likewise.
(arm_skip_stack_protector): Likewise.
(arm_analyze_prologue):Likewise.
(extend_buffer_earlier): Call target_read_code instead
of target_read_memory.
(arm_adjust_breakpoint_address): Likewise.
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gdb.perf/skip-prologue.exp is intended to measure the performance of
skipping prologue with prologue analysis by setting breakpoints.
However, if program is compiled with debug info, GDB is smart to
skip prologue by line table from debug info, so prologue analysis
is not exercised at all.
This patch adds a parameter COMPILE to specify compiling with
debug information, otherwise, it is compiled without debug
information.
gdb/testsuite:
2016-12-09 Yao Qi <yao.qi@linaro.org>
* gdb.perf/skip-prologue.exp: Add parameter COMPILE.
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For "info threads", we currently run into:
$ gdb/gdb -q -nw -nx --batch -ex start -ex info\ threads bfd/doc/chew
Temporary breakpoint 1 at 0x80486e0: file ../../../W._C._Handy/bfd/doc/chew.c, line 1535.
[New Thread 10656.5]
Thread 4 hit Temporary breakpoint 1, main (ac=1, av=0x102cd84) at ../../../W._C._Handy/bfd/doc/chew.c:1535
1535 {
Id Target Id Frame
1 bogus thread id 1 Can't fetch registers from thread bogus thread id 1: No such thread
Before commit e8032dde10b743253125d7defb5f5503b21c1d26,
gdb/thread.c:update_thread_list used to call prune_threads, after that change
it doesn't anymore, and we don't implement the to_update_thread_list target
method where the prune_threads call got moved. For now, apply a fix, related
to commit c82f56d9d760a9b4034eeaac44f2f0fa5779ff69 "Hurd: Adjust to
startup-with-shell changes", which restores the previous behavior:
Id Target Id Frame
* 4 Thread 10688.4 main (ac=1, av=0x102cd84) at ../../../W._C._Handy/bfd/doc/chew.c:1535
5 Thread 10688.5 0x0106096c in ?? () from /lib/i386-gnu/libc.so.0.3
Not perfect, but at least better.
gdb/
* gnu-nat.c (gnu_create_inferior): After startup_inferior, call
prune_threads.
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On GNU/Hurd, there is no "#define PATH_MAX", so this failed to build.
gdb/
* inferior.c (print_selected_inferior): Avoid PATH_MAX usage.
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opcodes/
* mips-dis.c (print_mips16_insn_arg): Remove extraneous
indentation space across.
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Complement commit dd8b7c222e0e ("MIPS: mips16e jalrc/jrc opcodes"),
<https://sourceware.org/ml/binutils/2005-07/msg00349.html>, and stop the
disassembler making a delay-slot adjustment for PC-relative operations
following either MIPS16e compact jumps, or undefined RR/J(AL)R(C)
encodings that have the `l' (link) and `ra' (source register is `ra')
bits set both at a time. Adjust code description for accuracy. Add a
suitable test case.
opcodes/
* mips-dis.c (print_mips16_insn_arg): Avoid delay-slot
adjustment for PC-relative operations following MIPS16e compact
jumps or undefined RR/J(AL)R(C) encodings.
binutils/
* testsuite/binutils-all/mips/mips16-pcrel.d: New test.
* testsuite/binutils-all/mips/mips16-pcrel.s: New test source.
* testsuite/binutils-all/mips/mips.exp: Run the new test.
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Fix a commit a9752fdf8398 ("[ARC] Sync cpu names with the ones accepted
by GCC.") build regression:
cc1: warnings being treated as errors
.../gas/config/tc-arc.c: In function 'arc_show_cpu_list':
.../gas/config/tc-arc.c:3452: error: declaration of 'spaces' shadows a global declaration
.../gas/../include/libiberty.h:248: error: shadowed declaration is here
make[4]: *** [tc-arc.o] Error 1
in a way following commit 91d6fa6a035c ("Add -Wshadow to the gcc command
line options used when compiling the binutils.").
gas/
* config/tc-arc.c (arc_show_cpu_list): Rename `spaces' local
variable to `space_buf'.
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Fix a commit 008a97eff0ca ("[GAS][ARM]Generate unpredictable warning for
pc used in data processing instructions with register-shifted register
operand.") build regression:
cc1: warnings being treated as errors
.../gas/config/tc-arm.c: In function 'encode_arm_shift':
.../gas/config/tc-arm.c:7439: error: declaration of 'index' shadows a global declaration
/usr/include/string.h:303: error: shadowed declaration is here
make[4]: *** [tc-arm.o] Error 1
in a way following commit 91d6fa6a035c ("Add -Wshadow to the gcc command
line options used when compiling the binutils.").
gas/
* config/tc-arm.c (encode_arm_shift): Rename `index' local
variable to `op_index'.
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Fix a commit c2c4ff8d52a2 ("[AArch64] Add ARMv8.3 FCMLA and FCADD
instructions") build regression:
cc1: warnings being treated as errors
.../opcodes/aarch64-dis.c: In function 'aarch64_ext_sve_addr_rr_lsl':
.../opcodes/aarch64-dis.c:1324: error: declaration of 'index' shadows a global declaration
/usr/include/string.h:303: error: shadowed declaration is here
make[4]: *** [aarch64-asm.lo] Error 1
in a way following commit 91d6fa6a035c ("Add -Wshadow to the gcc command
line options used when compiling the binutils.").
opcodes/
* aarch64-asm.c (aarch64_ins_reglane): Rename `index' local
variable to `reglane_index'.
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I got a report of a gdb crash for vle and further investigation showed an
attempt to disassemble an invalid memory range. I tracked the crash down
to the code in get_powerpc_dialect, where we fail to make sure we have a
valid section pointer before dereferencing it.
There is no such problem for rs6000-based disassembling.
opcodes/ChangeLog:
2016-12-08 Luis Machado <lgustavo@codesourcery.com>
* ppc-dis.c (get_powerpc_dialect): Check NULL info->section.
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* readelf.c (process_program_headers): Always use hex prefix when
displaying the segment alignment.
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A branch in a non-exec section that needs a stub can lead to this
assertion.
* powerpc.cc (Powerpc_relobj::stub_table): Return NULL rather
then asserting.
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* options.h (--stub-group-multi): Fix typo.
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config/
* acx.m4: Import from gcc.
* bootstrap-asan.mk: Likewise.
* multi.m4: Likewise.
/
* configure: Regnerate.
gas/
* configure: Regnerate.
ld/
* configure: Regnerate.
libiberty/
* configure: Regnerate.
zlib/
* configure: Regnerate.
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PR ld/20932
* elflink.c (bfd_elf_record_link_assignment): Handle warning symbols.
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Follow-up to commit 14f6890677849172a4b13779acd9089c9baa3a81.
global_thread_id_to_ptid expects global thread numbers, which are nowadays only
used in MI, never presented to the user in the CLI. Since this is a CLI
command, it should accept the inferior-qualified format instead.
gdb/
* gnu-nat.c (set_sig_thread_cmd): Use parse_thread_id instead of
global_thread_id_to_ptid.
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..., so handle these in "C" mode still:
gdb/
* config/i386/i386gnu.mh (%_S.o %_U.o): Add "-x c" to
"COMPILE.post".
* gnu-nat.c: #include Mach/Hurd headers before all others. Wrap
Mach/Hurd headers and MIG stubs' prototypes in 'extern "C"'.
* i386-gnu-nat.c: Likewise.
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GNU/Hurd uses its own "typedef enum __error_t_codes error_t;"
([glibc]/sysdeps/mach/hurd/bits/errno.h), contrary to the default
"typedef int error_t;" ([glibc]/stdlib/errno.h).
The Mach/Hurd RPCs return kern_return_t values, for which, upon assigning them
to an error_t variable, GCC in C++ mode tells us "error: invalid conversion
from 'kern_return_t {aka int}' to 'error_t {aka __error_t_codes}'". Instead of
casting all these RPC return values to "error_t", just use "kern_return_t"
variables:
gdb/
* gnu-nat.c (proc_get_exception_port, proc_set_exception_port)
(INF_RESUME_MSGPORT_RPC, proc_get_state, _proc_get_exc_port)
(proc_steal_exc_port, proc_restore_exc_port, make_proc)
(inf_startup, inf_set_pid, inf_validate_procinfo)
(inf_validate_task_sc, inf_set_traced, inf_validate_procs)
(inf_signal, inf_continue, gnu_wait, S_exception_raise_request)
(do_mach_notify_dead_name, S_proc_wait_reply)
(S_msg_sig_post_untraced_reply, S_msg_sig_post_reply)
(port_msgs_queued, gnu_read_inferior, gnu_write_inferior)
(gnu_find_memory_regions, steal_exc_port, thread_takeover_sc_cmd)
(flush_inferior_icache): Instead of "error_t" use "kern_return_t".
* i386-gnu-nat.c (fetch_fpregs, store_fpregs, i386_gnu_dr_get)
(i386_gnu_dr_set): Likewise.
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... by a bit of code refactoring:
gdb/
* gnu-nat.c (set_task_pause_cmd, set_signals_cmd)
(set_exceptions_cmd): Add variants taking an "int arg" instead of
a "char *". Make the "char *" variants use the former.
(set_noninvasive_cmd): Also use the "int arg" variants.
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..., which C++ doesn't allow, so...
gdb/
* gnu-nat.c (gnu_create_inferior): Move nested "trace_me"
function...
(gnu_ptrace_me): ... here.
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C++ doesn't do implicit type conversions from "void *", so we have to...
gdb/
* i386-gnu-nat.c (i386_gnu_dr_set_control_one)
(i386_gnu_dr_set_addr_one): Explicitly cast "void *".
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[...]/gdb/gnu-nat.c: In function 'set_sig_thread_cmd':
[...]/gdb/gnu-nat.c:2973:7: warning: implicit declaration of function 'thread_id_to_pid' [-Wimplicit-function-declaration]
ptid_t ptid = thread_id_to_pid (atoi (args));
^
[...]/gdb/gnu-nat.c:2973:7: error: invalid initializer
That's commit 5d5658a1d3c3eb2a09c03f2f0662a1c01963c869, which renamed
`thread_id_to_pid` to `global_thread_id_to_ptid`.
gdb/
* gnu-nat.c (set_sig_thread_cmd): Call global_thread_id_to_ptid
instead of thread_id_to_pid.
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Complement commit e407c74b5b60 ("Support for MIPS R5900 (Sony Playstation
2)"), <https://sourceware.org/ml/binutils/2012-12/msg00240.html>, and
commit 2c62985659da ("MIPS: Add Octeon 3 support") and update the chip
mask accordingly.
include/
* opcode/mips.h (INSN_CHIP_MASK): Update according to bit use.
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opcodes/
* mips-dis.c (print_mips16_insn_arg): Fix comment typo.
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opcodes/
* mips16-opc.c (mips16_opcodes): Update comment naming structure
members.
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Align output produced consistently and fix other formatting issues.
opcodes/
* mips-dis.c (print_mips_disassembler_options): Reformat output.
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Complement commit 8f4f9071ad5f ("Add MIPS32 DSPr3 support.").
include/
* opcode/mips.h (ASE_DSPR3): Add a comment.
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Replace a global `mips_opts.isa' reference in `is_opcode_valid' and use
a local copy just made in `isa'. No functional change.
gas/
* config/tc-mips.c (is_opcode_valid): Use local `isa'
consistently.
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