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gcc commit 387d0773f3 changed the D demangler, with the following
commit log:
libiberty: Add support for `in' and `in ref' storage classes.
The storage class `in' is now a first-class citizen with its own mangle
symbol, of which also permits `in ref'. Previously, `in' was an alias
to `const [scope]', which is a type constructor.
The mangle symbol repurposed for this is `I', which was originally used
by identifier types. However, while TypeIdentifier is part of the
grammar, it must be resolved to some other entity during the semantic
passes, and so shouldn't appear anywhere in the mangled name.
Old tests that are now no longer valid have been removed.
This patch makes the same changes to the gdb testsuite as were made to
the upstream gcc libiberty testsuite.
gdb/testsuite/
PR 26597
* gdb.dlang/demangle.exp: Update tests as per gcc commit 387d0773f3.
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Implement the following functionality: create_inferior,
post_create_inferior, attach, kill, detach, mourn, join, thread_alive,
resume, wait, fetch_registers, store_registers, read_memory, write_memory,
request_interrupt, supports_read_auxv, read_auxv,
supports_hardware_single_step, sw_breakpoint_from_kind,
supports_z_point_type, insert_point, remove_point,
stopped_by_sw_breakpoint, supports_qxfer_siginfo, qxfer_siginfo,
supports_stopped_by_sw_breakpoint, supports_non_stop,
supports_multi_process, supports_fork_events, supports_vfork_events,
supports_exec_events, supports_disable_randomization,
supports_qxfer_libraries_svr4, qxfer_libraries_svr4,
supports_pid_to_exec_file, pid_to_exec_file, thread_name,
supports_catch_syscall.
The only CPU architecture supported: x86_64.
Implement only support for hardware assisted single step and
software breakpoint.
Implement support only for regular X86 registers, thus no FPU.
gdbserver/ChangeLog:
* netbsd-low.cc: Add.
* netbsd-low.h: Likewise.
* netbsd-amd64-low.cc: Likewise.
* Makefile.in (SFILES): Register "netbsd-low.cc", "netbsd-low.h",
"netbsd-amd64-low.cc".
* configure.srv: Add x86_64-*-netbsd*.
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No functional change as the same functionality inlined in nbsd-nat.c
is offered in gdb/nat/netbsd-nat.c.
gdb/ChangeLog:
* nbsd-nat.c: Include "nat/netbsd-nat.h".
* (nbsd_nat_target::pid_to_exec_file)
(nbsd_nat_target::thread_alive, nbsd_nat_target::thread_name)
(nbsd_nat_target::post_startup_inferior)
(nbsd_nat_target::post_attach, nbsd_nat_target::xfer_partial)
(nbsd_add_threads): Switch local code to common gdb/nat functions.
* (nbsd_pid_to_cmdline): Call sysctl from the global namespace.
* (nbsd_thread_lister): Remove.
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Do not free the last execd pathname as it will be used in
prepare_resume_reply(), after attaching a client side.
gdb/ChangeLog:
* fork-inferior.c (startup_inferior): Avoid double free.
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gdb/ChangeLog:
* netbsd-nat.h (netbsd_nat::qxfer_siginfo): Add.
* netbsd-nat.c (netbsd_nat::qxfer_siginfo): Likewise.
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Add generic function to enable debugger events in a process.
gdb/ChangeLog:
* netbsd-nat.h (netbsd_nat::enable_proc_events): Add.
* netbsd-nat.c: Include <sys/ptrace.h>.
* (netbsd_nat::enable_proc_events): Add.
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Add netbsd_nat::netbsd_thread_lister a generic thread lister, used
internally in netbsd-nat.c, copied from gdb/nbsd-nat.c.
Add public extern functions for listing threads:
* netbsd_nat::thread_alive
* netbsd_nat::thread_name
* netbsd_nat::for_each_thread
gdb/ChangeLog:
* netbsd-nat.h: Include "gdbsupport/function-view.h".
* (netbsd_nat::thread_alive, netbsd_nat::thread_name)
(netbsd_nat::for_each_thread): Add.
* netbsd-nat.c: Include "gdbsupport/common-defs.h" and
"gdbsupport/common-debug.h".
* (netbsd_nat::netbsd_thread_lister)
(netbsd_nat::thread_alive, netbsd_nat::thread_name)
(netbsd_nat::for_each_thread): Add.
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gdb/ChangeLog:
* netbsd-nat.h: Include <unistd.h>.
* (netbsd_nat::pid_to_exec_file): Add.
* netbsd-nat.c: Include <sys/types.h> and <sys/sysctl.h>.
* (netbsd_nat::pid_to_exec_file) Add.
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gdb/ChangeLog:
* configure.nat (NATDEPFILES): Add nat/netbsd-nat.o when needed.
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gdb/ChangeLog:
* netbsd-nat.h: New file.
* netbsd-nat.c: Likewise.
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gdbsupport/ChangeLog:
* eintr.h: New file.
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disassembly of PowerPC binaries.
* ppc-dis.c (ppc_symbol_is_valid): New function. Returns false
for hidden, local, no-type symbols.
(disassemble_init_powerpc): Point the symbol_is_valid field in the
info structure at the new function.
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gas/
* config/tc-csky.c (md_begin): Enable extend lrw by default for
CK802, CK803 and CK860.
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opcodes/
* csky-opc.h (csky_v2_opcodes): Add L2Cache instructions.
* testsuite/gas/csky/cskyv2_ck860.d : Adjust to icache.iva
opcode fixing.
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Add arches CK804, CK805 and CK800. CK800 is an special arch which
support all instructions for CSKYV2. Refine the cpu tables to
simplify adding a new cpu.
Co-Authored-By: Lifang Xia <lifang_xia@c-sky.com>
gas/
* config/tc-csky.c (struct csky_cpu_info): Add new members
isa_flag, features and ver.
(struct csky_cpu_feature): New.
(struct csky_cpu_version): New.
(CSKY_FEATURE_MAX): Define.
(CSKY_CPU_REVERISON_MAX): Define.
(FEATURE_DSP_EXT, FEATURE_DSP, FEATURE_MMU, FEATURE_VDSP,
FEATURE_FLOAT, FEATURE_TRUST, FEATURE_JAVA, FEATURE_SHIELD):
Define, each standard one collection of instructions.
(CSKY_FEATURES_DEF_NULL, CSKY_FEATURES_DEF_e,
CSKY_FEATURES_DEF_t, CSKY_FEATURES_DEF_f, CSKY_FEATURES_DEF_v,
CSKY_FEATURES_DEF_ef, CSKY_FEATURES_DEF_jt,
CSKY_FEATURES_DEF_efht, CSKY_FEATURES_DEF_efv,
CSKY_FEATURES_DEF_eft, CSKY_FEATURES_DEF_d,
CSKY_FEATURES_DEF_df, CSKY_FEATURES_DEF_ft,
CSKY_FEATURES_DEF_tv, CSKY_FEATURES_DEF_fv,
CSKY_FEATURES_DEF_dft, CSKY_FEATURES_DEF_dfv,
CSKY_FEATURES_DEF_ftv, CSKY_FEATURES_DEF_eftv): Define,
the features combination used by cpu.
(CSKY_CPU_REVERISON_r0p0, CSKY_CPU_REVERISON_r1p0,
CSKY_CPU_REVERISON_r2p0, CSKY_CPU_REVERISON_r3p0,
CSKY_CPU_REVERISON_RESERVED, CSKY_CPU_REVERISON_R3):
Define, version information used by cpu.
(csky_cpus): Refine, and add CK804, CK805 and CK800.
(parse_cpu): Refine.
(parse_arch): Refine.
(md_show_usage): Refine.
(md_begin): Refine.
include/
* opcode/csky.h (CSKY_ARCH_804): Define.
(CSKY_ARCH_805): Define.
(CSKY_ARCH_800): Define.
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Some MIPS targets, for reasons I didn't analyse, use the larger common
symbol in a shared lib rather than a smaller common in an executable.
That doesn't seem unreasonable, so allow that to pass for pr26580-2.
bfin-elf complains about not supporting copy relocs, but it's quite
silly to want a copy reloc for common symbols, so leave the fail
there. mn10300-elf and score-elf both fail the test with "PHDR
segment not covered by LOAD segment". Other tests fail similarly so
one more doesn't hurt. The failure is a consequence of supporting
dynamic objects but setting EMBEDDED in ld scripts.
PR 26580
* testsuite/ld-elf/pr26580-2.sd: Accept undefined symbol.
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Extend the test a little to archives, not that we expect this to
fail. Nor has the lto-18 test ever failed without -flto.
* testsuite/ld-plugin/lto-18b.c (select): Remove.
* testsuite/ld-plugin/lto-18c.c (select): Remove.
* testsuite/ld-plugin/lto.exp: Build archives for lto-18 too,
and run static versions of the test.
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incldue * opcode/csky.h (CSKY_ISA_FLOAT_7E60): Use a long long type for
this value.
opcodes * csky-dis.c (csky_output_operand): Coerce the immediate values to
long before printing.
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* csky-dis.c (csky_output_operand): Don't sprintf str to itself.
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I believe ada-lang.c:remove_extra_symbols has a latent bug. This
function loops over a vector of symbols, removing duplicates according
to some criteria.
At the end of the loop it does:
if (remove_p)
syms->erase (syms->begin () + i);
i += 1;
However, this seems wrong to me -- when removing the i'th element,
this code still increments "i", thus skipping an element.
At first I thought this was a regression from the patches to remove
cleanups from ada-lang.c (this was when std::vector was introduced);
but I found that instead the bug seems to be older:
if (remove_p)
{
for (j = i + 1; j < nsyms; j += 1)
syms[j - 1] = syms[j];
nsyms -= 1;
}
i += 1;
No test, as I don't know how to write one.
As this is Ada-specific, and was already reviewed internally by Joel,
I am checking it in.
gdb/ChangeLog
2020-09-09 Tom Tromey <tromey@adacore.com>
* ada-lang.c (remove_extra_symbols): Do not increment when
removing an element
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* cofflink.c (coff_link_check_archive_element): Move the check for
coff type input to the start of the function.
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We don't support power10 on ppc32, mainly because some instructions
have 34-bit fields for which we don't have relocations on ppc32.
If you try to assemble typical code, you'll see errors saying
"reloc ... not supported by object file format". Also, on 32-bit
hosts with binutils configured without a 64-bit bfd, you'll see errors
saying "bignum invalid" when using large offsets. But let's not kill
output of prefix insns entirely on 32-bit hosts.
* config/tc-ppc.c (md_assemble): Emit prefix insn by parts when
valueT is smaller than 64 bits.
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gas/
* config/tc-csky.c (CSKYV2_ISA_DSP): CSKY_ISA_DSPE60.
(CSKY_ISA_860): Likewise.
include/
* opcode/csky.h (CSKY_ISA_DSPE60): Define.
opcodes/
* csky-opc.h (csky_v2_opcodes): Change mvtc and mulsw's
ISA flag.
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The option corresponds to GCC to control the float calling conversion,
and the value will be stored in .csky.attributes section.
Co-Authored-By: Lifang Xia <lifang_xia@c-sky.com>
gas/
* config/tc-csky.c (float_abi): New.
(md_longopts): Add mfloat-abi.
(struct sky_option_value_table): New.
(csky_float_abis): New, the possible values for -mfloat-abi.
(parse_float_abi): New funtion.
(md_show_usage): Show help information for -mfloat-abi.
(set_csky_attribute): Store float-abi value.
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Co-Authored-By: Lifang Xia <lifang_xia@c-sky.com>
gas/
* config/tc-csky.c (float_work_fpuv3_fmovi): New function,
helper function to encode fpuv3 fmovi instructions.
(float_work_fpuv3_fstore): New function.
(struct literal): Add new member 'offset'.
(csky_cpus): New cpu CK860f.
(enter_literal): Return literal pool pointer instead of offset.
(parse_rt): Adjust the change of enter_literal.
(parse_rtf): Likewise.
(v1_work_lrw): Likewise.
(v1_work_jbsr): Likewise.
(v2_work_lrw): Likewise.
(v2_work_jbsr): Likewise.
(v2_work_jsri): Likewise.
(vdsp_work_vlrw): Likewise.
(is_freglist_legal): Add handler for FPUV3.
(parse_type_freg): Likewise.
(is_imm_within_range): Set e.X_add_number if it is a signed and
negtive number.
(get_operand_value): Add handler for OPRND_TYPE_IMM9b,
OPRND_TYPE_HFLOAT_FMOVI, OPRND_TYPE_SFLOAT_FMOVI
and OPRND_TYPE_DFLOAT_FMOVI.
(float_to_half): Convert float number to harf float.
opcodes/
* csky-dis.c (csky_output_operand): Add handlers for
OPRND_TYPE_HFLOAT_FMOVI, OPRND_TYPE_SFLOAT_FMOVI and
OPRND_TYPE_DFLOAT_FMOVI. Refine OPRND_TYPE_FREGLIST_DASH
to support FPUV3 instructions.
* csky-opc.h (enum operand_type): New enum OPRND_TYPE_IMM9b,
OPRND_TYPE_HFLOAT_FMOVI, OPRND_TYPE_SFLOAT_FMOVI and
OPRND_TYPE_DFLOAT_FMOVI.
(OPRND_MASK_4_5, OPRND_MASK_6, OPRND_MASK_6_7, OPRND_MASK_6_8,
OPRND_MASK_7, OPRND_MASK_7_8, OPRND_MASK_17_24,
OPRND_MASK_20, OPRND_MASK_20_21, OPRND_MASK_20_22,
OPRND_MASK_20_23, OPRND_MASK_20_24, OPRND_MASK_20_25,
OPRND_MASK_0_3or5_8, OPRND_MASK_0_3or6_7, OPRND_MASK_0_3or25,
OPRND_MASK_0_4or21_24, OPRND_MASK_5or20_21,
OPRND_MASK_5or20_22, OPRND_MASK_5or20_23, OPRND_MASK_5or20_24,
OPRND_MASK_5or20_25, OPRND_MASK_8_9or21_25,
OPRND_MASK_8_9or16_25, OPRND_MASK_4_6or20, OPRND_MASK_5_7or20,
OPRND_MASK_4_5or20or25, OPRND_MASK_4_6or20or25,
OPRND_MASK_4_7or20or25, OPRND_MASK_6_9or17_24,
OPRND_MASK_6_7or20, OPRND_MASK_6or20, OPRND_MASK_7or20,
OPRND_MASK_5or8_9or16_25, OPRND_MASK_5or8_9or20_25): Define.
(csky_v2_opcodes): Add FPUV3 instructions.
include/
* opcode/csky.h (CSKY_ISA_FLOAT_7E60): Define.
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The associated check function doesn't do anything with its "data"
param, so nothing to adjust there.
PR 26578
* dwarf.c (parse_gnu_debugaltlink): Don't alloc build_id_data.
(load_separate_debug_files): Use a stack var for build_id_data.
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Demonstrates a reason to use IR symbols when deciding an --as-needed
library should be loaded.
* testsuite/ld-plugin/lto-18a.c,
* testsuite/ld-plugin/lto-18b.c,
* testsuite/ld-plugin/lto-18c.c,
* testsuite/ld-plugin/lto-18d.c,
* testsuite/ld-plugin/lto-18.out: New test.
* testsuite/ld-plugin/lto.exp: Run it.
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Put the prototype where it won't disappear on the next regen of libbfd.h.
* libbfd-in.h (_bfd_write_unsigned_leb128): Declare.
* libbfd.h: Regenerate.
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The div and mod eBPF instructions are unsigned, but the semantic
specification for the simulator incorrectly used signed operators.
Correct them to unsigned versions, and correct the ALU tests in
the simulator (which incorrectly assumed signed semantics).
Tested in bpf-unknown-none.
cpu/ChangeLog:
2020-09-08 David Faust <david.faust@oracle.com>
* bpf.cpu (define-alu-instructions): Correct semantic operators
for div, mod to unsigned versions.
sim/ChangeLog:
2020-09-08 David Faust <david.faust@oracle.com>
* bpf/sem-be.c: Regenerate.
* bpf/sem-le.c: Likewise.
sim/testsuite/ChangeLog:
2020-09-08 David Faust <david.faust@oracle.com>
* sim/bpf/alu.s: Correct div and mod tests.
* sim/bpf/alu32.s: Likewise.
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Pass --disable-reloc-section on PE targets for PR 25662 test since
commit 514b4e191d5f46de8e142fe216e677a35fa9c4bb
Author: Jeremy Drake <sourceware-bugzilla@jdrake.com>
Date: Thu Aug 27 12:58:27 2020 +0100
Change the default characteristics of DLLs built by the linker to more secure settings.
defaulted to --enable-reloc-section.
PR ld/26587
* testsuite/binutils-all/objcopy.exp: Pass --disable-reloc-section
to ld on PE targets for PR 25662 test.
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PR win32/25302 notes that gdb will crash when trying to "run" even a
simple program on Windows. The essential bug here is that the BFD
cache can easily be corrupted -- I have sent a separate patch for
that.
The particular reason that the cache is corrupted on Windows is that
gnulib overrides "stat" to make it do timezone adjustment -- but BFD
does not use this version of stat. The difference here triggers the
latent cache bug, but can also cause other bugs as well; in particular
it can cause spurious warnings about source files being newer.
This patch simply removes the stat override on mingw, making gnulib
and BFD agree.
I tested this by backing out the local AdaCore changes to work around
this bug and then verifying that I could reproduce it. Then, I
applied this patch and verified that "run" works again.
2020-09-08 Tom Tromey <tromey@adacore.com>
PR win32/25302:
* update-gnulib.sh: Apply stat patch.
* patches/0001-use-windows-stat: New file.
* import/m4/stat.m4: Update.
* configure: Rebuild.
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The previous patch introduced an uninitialized warning in
gdb_bfd_open. The problem was that "abfd" was being used without
being initialized.
This patch fixes the problem by calling bfd_fopen in the branch where
"fstat" has failed.
gdb/ChangeLog
2020-09-08 Tom Tromey <tromey@adacore.com>
* gdb_bfd.c (gdb_bfd_open): Call bfd_fopen when fstat fails.
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gdb caches BFDs that come from ordinary files. This code turns out to
have a bug where the hash table can become corrupted, causing gdb to
crash.
When gdb_bfd_open opens the BFD, it uses fstat to get the BFD's mtime.
This is used when inserting the entry into gdb_bfd_cache. Then, the
function creates the gdb_bfd_data object as a side effect of calling
new_reference. This object is used when finding objects in the hash
table, and its constructor uses bfd_get_mtime. So, if the file
changes between the time the BFD is put into the cache and the time
that this object is created, the hash table will be incorrect. When
the BFD is later deleted, its entry in the hash table will not be
found, and at this point the hash table will point to invalid memory.
This patch fixes the bug by ensuring that the mtime, and other
relevant attributes comgin from stat, that are used for insertion are
also used when creating the gdb_bfd_data.
This obsoletes an earlier patch that had split this into two parts
(surrounding a patch to use bfd_stat more consistently). This version
merges the two patches, in the interest of correctness.
gdb/ChangeLog
2020-09-08 Tom Tromey <tromey@adacore.com>
PR win32/25302:
* gdb_bfd.c (gdb_bfd_data): Add "st" parameter.
(gdb_bfd_init_data): New function.
(gdb_bfd_open, gdb_bfd_ref): Use gdb_bfd_init_data.
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Link-time relaxations of branches are common for MSP430, given that GCC
can generate pessimal branch instructions, and the
-mcode-region=either/-mdata-region=either options to shuffle sections
can further change the type of branch instruction required.
These relaxations can result in invalid code when .uleb128
directives, used in the .gcc_except_table section, are used to calculate
the distance between two labels. A value for the .uleb128 directive is
calculated at assembly-time, and can't be updated at link-time, even if
relaxation causes the distance between the labels to change.
This patch adds relocations for subtract expressions in .uleb128
directives, to allow the linker to re-calculate the value of these
expressions after relaxation has been performed.
bfd/ChangeLog:
* bfd-in2.h (bfd_reloc_code_real): Add
BFD_RELOC_MSP430_{SET,SUB}_ULEB128.
* elf32-msp430.c (msp430_elf_ignore_reloc): New.
(elf_msp430_howto_table): Add R_MSP430{,X}_GNU_{SET,SUB}_ULEB128.
(msp430_reloc_map): Add R_MSP430_GNU_{SET,SUB}_ULEB128.
(msp430x_reloc_map): Add R_MSP430X_GNU_{SET,SUB}_ULEB128.
(write_uleb128): New.
(msp430_final_link_relocate): Handle R_MSP430{,X}_GNU_{SET,SUB}_ULEB128.
* libbfd.c (_bfd_write_unsigned_leb128): New.
* libbfd.h (_bfd_write_unsigned_leb128): New prototype.
Add BFD_RELOC_MSP430_{SET,SUB}_ULEB128.
* reloc.c: Document BFD_RELOC_MSP430_{SET,SUB}_ULEB128.
binutils/ChangeLog:
* readelf.c (target_specific_reloc_handling): Handle
R_MSP430{,X}_GNU_{SET,SUB}_ULEB128.
gas/ChangeLog:
* config/tc-msp430.c (msp430_insert_uleb128_fixes): New.
(msp430_md_end): Call msp430_insert_uleb128_fixes.
include/ChangeLog:
* elf/msp430.h (elf_msp430_reloc_type): Add
R_MSP430_GNU_{SET,SUB}_ULEB128.
(elf_msp430x_reloc_type): Add R_MSP430X_GNU_{SET,SUB}_ULEB128.
ld/ChangeLog:
* testsuite/ld-msp430-elf/msp430-elf.exp: Run new tests.
* testsuite/ld-msp430-elf/uleb128.s: New test.
* testsuite/ld-msp430-elf/uleb128_430.d: New test.
* testsuite/ld-msp430-elf/uleb128_430x.d: New test.
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This adds support for the Arm Cortex-R82 CPU in AArch64 GAS. For more
information about this processor, see [0].
[0] : https://developer.arm.com/ip-products/processors/cortex-r/cortex-r82
gas/ChangeLog:
2020-09-08 Alex Coplan <alex.coplan@arm.com>
* config/tc-aarch64.c (aarch64_cpus): Add Cortex-R82.
* doc/c-aarch64.texi: Document -mcpu=cortex-r82.
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This patch adds support for the system registers introduced in Armv8-R
AArch64.
gas/ChangeLog:
2020-09-08 Alex Coplan <alex.coplan@arm.com>
* config/tc-aarch64.c (parse_sys_reg): Also pass sysreg name to
validation function.
(parse_sys_ins_reg): Likewise.
(print_operands): Pass CPU features to aarch64_print_operand().
* testsuite/gas/aarch64/v8-r-bad-sysregs.d: New test.
* testsuite/gas/aarch64/v8-r-bad-sysregs.l: Error output.
* testsuite/gas/aarch64/v8-r-bad-sysregs.s: Input.
* testsuite/gas/aarch64/v8-r-sysregs-need-arch.d: New test.
* testsuite/gas/aarch64/v8-r-sysregs-need-arch.l: Error output.
* testsuite/gas/aarch64/v8-r-sysregs.d: New test.
* testsuite/gas/aarch64/v8-r-sysregs.s: Input for previous two tests.
include/ChangeLog:
2020-09-08 Alex Coplan <alex.coplan@arm.com>
* opcode/aarch64.h (aarch64_sys_ins_reg_supported_p): Also take
system register name in order to simplify validation for v8-R.
(aarch64_print_operand): Also take CPU feature set, as disassembly for
system registers now depends on arch variant.
opcodes/ChangeLog:
2020-09-08 Alex Coplan <alex.coplan@arm.com>
* aarch64-dis.c (print_operands): Pass CPU features to
aarch64_print_operand().
* aarch64-opc.c (aarch64_print_operand): Use CPU features to determine
preferred disassembly of system registers.
(SR_RNG): Refactor to use new SR_FEAT2 macro.
(SR_FEAT2): New.
(SR_V8_1_A): New.
(SR_V8_4_A): New.
(SR_V8_A): New.
(SR_V8_R): New.
(SR_EXPAND_ELx): New.
(SR_EXPAND_EL12): New.
(aarch64_sys_regs): Specify which registers are only on
A-profile, add R-profile system registers.
(ENC_BARLAR): New.
(PRBARn_ELx): New.
(PRLARn_ELx): New.
(aarch64_sys_ins_reg_supported_p): Reject EL3 registers for
Armv8-R AArch64.
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This adds support for the DFB alias introduced in Armv8-R AArch64.
gas/ChangeLog:
2020-09-08 Alex Coplan <alex.coplan@arm.com>
* testsuite/gas/aarch64/dfb.d: New test.
* testsuite/gas/aarch64/dfb.s: Input.
opcodes/ChangeLog:
2020-09-08 Alex Coplan <alex.coplan@arm.com>
* aarch64-tbl.h (aarch64_feature_v8_r): New.
(ARMV8_R): New.
(V8_R_INSN): New.
(aarch64_opcode_table): Add dfb.
* aarch64-opc-2.c: Regenerate.
* aarch64-asm-2.c: Regenerate.
* aarch64-dis-2.c: Regenerate.
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This patch adds the basic infrastructure needed to support Armv8-R in
AArch64 binutils: new command-line flags, new feature bits, a new BFD
architecture, and support for differentiating between architecture
variants in the disassembler.
The new command-line options added by this patch are -march=armv8-r in
GAS and -m aarch64:armv8-r in objdump.
The disassembler support is necessary since Armv8-R AArch64 introduces a
system register (VSCTLR_EL2) which shares an encoding with a different
system register (TTBR0_EL2) in Armv8-A. This also allows us to use the
correct preferred disassembly for the new DFB alias introduced in
Armv8-R.
bfd/ChangeLog:
2020-09-08 Alex Coplan <alex.coplan@arm.com>
* archures.c (bfd_mach_aarch64_8R): New.
* bfd-in2.h: Regenerate.
* cpu-aarch64.c (bfd_aarch64_arch_v8_r): New.
(bfd_aarch64_arch_ilp32): Update tail pointer.
gas/ChangeLog:
2020-09-08 Alex Coplan <alex.coplan@arm.com>
* config/tc-aarch64.c (aarch64_archs): Add armv8-r.
* doc/c-aarch64.texi: Document -march=armv8-r.
include/ChangeLog:
2020-09-08 Alex Coplan <alex.coplan@arm.com>
* opcode/aarch64.h (AARCH64_FEATURE_V8_A): New.
(AARCH64_FEATURE_V8_R): New.
(AARCH64_ARCH_V8): Include new A-profile feature bit.
(AARCH64_ARCH_V8_R): New.
opcodes/ChangeLog:
2020-09-08 Alex Coplan <alex.coplan@arm.com>
* aarch64-dis.c (arch_variant): New.
(determine_disassembling_preference): Disassemble according to
arch variant.
(select_aarch64_variant): New.
(print_insn_aarch64): Set feature set.
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Two pieces to this puzzle:
1) Revert HJ's fix for PR13250 so that size and alignment isn't
sticky, instead attack the real underlying problem that
_bfd_generic_link_add_one_symbol does the wrong thing in making a
common section in a shared library bfd.
2) Save and restore common u.c.p fields, which hold the section and
alignment.
A better fix for (2) would be to throw away all of that horrible code
saving and restoring the hash table when loading as-needed library
symbols, and instead do a scan over as-needed library symbols before
adding anything.
bfd/
PR 13250
PR 26580
* elflink.c (_bfd_elf_merge_symbol): Make "override" a bfd**.
Return oldbfd in override when old common should override new
common.
(_bfd_elf_add_default_symbol): Adjust to suit.
(elf_link_add_object_symbols): Likewise. Pass "override" to
_bfd_generic_link_add_one_symbol. Save and restore common u.c.p
field for --as-needed shared libraries. Revert pr13250 changes.
ld/
* testsuite/ld-elf/pr26580-a.s,
* testsuite/ld-elf/pr26580-b.s,
* testsuite/ld-elf/pr26580-1.sd,
* testsuite/ld-elf/pr26580-2.sd: New tests
* testsuite/ld-elf/comm-data.exp: Run new tests.
* testsuite/ld-elf/pr26580-a.c,
* testsuite/ld-elf/pr26580-b.c,
* testsuite/ld-elf/pr26580-3.out,
* testsuite/ld-elf/pr26580-4.out: New tests.
* testsuite/ld-elf/shared.exp: Run new tests.
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config/
Sync from gcc
2020-07-15 H.J. Lu <hjl.tools@gmail.com>
PR bootstrap/96202
* cet.m4 (GCC_CET_HOST_FLAGS): Don't enable CET without CET
support in stage1 nor for build support.
libiberty/
* configure: Regenerate.
Sync from gcc
2020-09-08 Alan Modra <amodra@gmail.com>
* d-demangle.c: Include limits.h.
(ULONG_MAX, UINT_MAX): Provide fall-back definition.
(dlang_number): Simplify and correct overflow test. Only
write *ret on returning non-NULL. Make "ret" an unsigned long*.
Only succeed for result of [0,UINT_MAX].
(dlang_decode_backref): Simplify and correct overflow test.
Only write *ret on returning non-NULL. Only succeed for
result [1,MAX_LONG].
(dlang_backref): Remove now unnecessary range check.
(dlang_symbol_name_p): Likewise.
(string_need): Take a size_t n arg, and use size_t tem.
(string_append): Use size_t n.
(string_appendn, string_prependn): Take a size_t n arg.
(TEMPLATE_LENGTH_UNKNOWN): Define as -1UL.
(dlang_lname, dlang_parse_template): Take an unsigned long len
arg.
(dlang_symbol_backref, dlang_identifier, dlang_parse_integer),
(dlang_parse_integer, dlang_parse_string),
(dlang_parse_arrayliteral, dlang_parse_assocarray),
(dlang_parse_structlit, dlang_parse_tuple),
(dlang_template_symbol_param, dlang_template_args): Use
unsigned long variables.
* testsuite/d-demangle-expected: Add new tests.
2020-08-04 Iain Buclaw <ibuclaw@gdcproject.org>
* d-demangle.c (dlang_function_args): Handle 'in' and 'in ref'
parameter storage classes.
(dlang_type): Remove identifier type.
* testsuite/d-demangle-expected: Update tests.
2020-08-03 Richard Biener <rguenther@suse.de>
PR lto/96385
* simple-object-elf.c
(simple_object_elf_copy_lto_debug_sections): Localize global
UNDEFs and reuse the prevailing name.
2020-07-10 Ian Lance Taylor <iant@golang.org>
PR demangler/96143
* cp-demangle.c (d_lambda): Don't add substitution candidate.
* testsuite/demangle-expected: Update a few existing test cases
accordingly, and add a new test case.
2020-07-04 Jason Merrill <jason@redhat.com>
* cp-demangle.c (cplus_demangle_operators): Add di, dx, dX.
(d_expression_1): Handle di and dX.
(is_designated_init, d_maybe_print_designated_init): New.
(d_print_comp_inner): Use d_maybe_print_designated_init.
* testsuite/demangle-expected: Add designator tests.
2020-06-25 Nick Clifton <nickc@redhat.com>
* bsearch.c (bsearch): Remove use of register keyword.
* bsearch_r.c (bsearch_r): Likewise.
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I'm running into the following FAIL:
...
(gdb) starti ^M
Starting program: frame-inlined-in-outer-frame frame^M
^M
^M
Program stopped.^M
0x0000000000401000 in _start ()^M
(gdb) PASS: gdb.dwarf2/frame-inlined-in-outer-frame.exp: frame
frame^M
(gdb) FAIL: gdb.dwarf2/frame-inlined-in-outer-frame.exp: step into foo
stepi^M
0x0000000000401001 in foo ()^M
...
The problem is that the .exp file issues a gdb_starti_cmd without consuming
the resulting prompt. Consequently, the gdb_test issuing the frame command
consumes that prompt, and things are out-of-sync from that point onwards.
Fix this by consuming the gdb prompt after gdb_starti_cmd.
Tested on x86_64-linux.
gdb/testsuite/ChangeLog:
2020-09-08 Tom de Vries <tdevries@suse.de>
* gdb.dwarf2/frame-inlined-in-outer-frame.exp: Consume gdb prompt
after gdb_starti_cmd.
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conanicalizing weak definitions.
* plugin.c (bfd_plugin_canonicalize_symtab): Handle the case of an
unrecognized symbol type in a weak definition.
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Use the available `switch_to_target_no_thread` function to switch the
target. This is a refactoring.
gdb/ChangeLog:
2020-09-07 Tankut Baris Aktemur <tankut.baris.aktemur@intel.com>
* infrun.c (fetch_inferior_event): Use
`switch_to_target_no_thread` to switch the target.
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* dwarf2dbg.c (add_line_strp): New function.
(out_dir_and_file_list): Take line_seg and sizeof_offset as
arguments, Use DW_FORM_line_strp for dir and file. Call
add_line_strp and set symbol offset for DWARF2_LINE_VERSION 5.
(out_debug_line): Call out_dir_and_file_list with line_seg and
sizeof_offset.
* gas/testsuite/gas/elf/dwarf-5-file0.d: Expect indirect line
strings.
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* dwarf2dbg.c (DWARF2_RNGLISTS_VERSION): New constant.
(out_debug_ranges): Add ranges_sym argument and set it.
(out_debug_rnglists): New function.
(out_debug_info): Change ranges_seg argument to ranges_sym
and use it to set DW_AT_ranges value.
(dwarf2_finish): Remove ranges_seg, add ranges_sym. For
DWARF2_VERSION 5 call out_debug_rnglists.
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* dwarf2dbg.c (dwarf2_directive_filename): Initialize with_md5 to
FALSE.
* gas/testsuite/gas/elf/dwarf-5-file0.s: Add a random bignum.
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