Nick Clifton [Fri, 28 Aug 2020 15:04:49 +0000 (16:04 +0100)]
Fix a bogus error message from the DWARF LEB129 decoder when trying to read a signed LEB128 value containing the largest possible signed negative integer value.
PR 26548
* dwarf.c (read_leb128): When checking for overflow of a signed
read, use a signed shift.
Alan Modra [Fri, 28 Aug 2020 14:13:16 +0000 (23:43 +0930)]
PR26449, PR26450 UBSAN: frv-ibld.c:135 left shift
Eh well, I guess the code didn't quite live up to the comment.
PR 26449
PR 26450
* cgen-ibld.in (insert_1): Use 1UL in forming mask.
(extract_normal): Likewise.
(insert_normal): Likewise, and move past zero length test.
(put_insn_int_value): Handle mask for zero length, use 1UL.
* bpf-ibld.c, * epiphany-ibld.c, * fr30-ibld.c, * frv-ibld.c,
* ip2k-ibld.c, * iq2000-ibld.c, * lm32-ibld.c, * m32c-ibld.c,
* m32r-ibld.c, * mep-ibld.c, * mt-ibld.c, * or1k-ibld.c,
* xc16x-ibld.c, * xstormy16-ibld.c: Regenerate.
Alan Modra [Fri, 28 Aug 2020 13:39:29 +0000 (23:09 +0930)]
PR26460 UBSAN: tc-ia64.c:6107 index out of bounds
PR 26460
* config/tc-ia64.c (parse_operands): Don't access past end of
idesc->operands.
Alan Modra [Fri, 28 Aug 2020 13:36:47 +0000 (23:06 +0930)]
PR26418 UBSAN: cache.c:386 null pointer fwrite
And some more.
PR 26418
* ecofflink.c (bfd_ecoff_write_accumulated_debug): Don't write
zero size buffers.
Mark Wielaard [Wed, 26 Aug 2020 19:46:04 +0000 (21:46 +0200)]
gas: Handle bad -gdwarf options, just like bad --gdwarf options.
parse_args uses getopt_long_only so it can handle long options both
with double and single dash. But this means that some single dash
options like -gdwarf-1 don't generate an error (unlike --gdwarf-1).
This is especially confusing since there is also --gdwarf2, but no
--gdwarf4 (it is --gdwarf-4). When giving -gdwarf4 the option is
silently interpreted as -g (which set dwarf_version to 2). This causes
some confusion for people who don't expect this and suddenly get
DWARF2 instead of DWARF4 as they might expect.
So make it so that the -gdwarf<unknown> creates an error, just like
--gdwarf<unknown> would.
Jozef Lawrynowicz [Fri, 28 Aug 2020 12:56:53 +0000 (13:56 +0100)]
MSP430: Fix alignment of __*_array_start symbols in default linker script
__{preinit,init,fini}_array_start symbols must be word aligned in
linker scripts. If the section preceding the __*_array_start symbol
has an odd size, then a NULL byte will be present between the start
symbol and the .*_array section itself, when the section gets
automatically word-aligned.
This results in a branch to an invalid address when the CRT startup
code tries to run through the functions listed in the array sections.
Some MSP430 linker scripts do not align the __*_array start symbols, so
this added warning will catch that problem and help the user avoid
the potential incorrect execution of the program.
ld/ChangeLog:
* emultempl/msp430.em (input_section_exists): New.
(check_array_section_alignment): New.
(gld${EMULATION_NAME}_finish): New.
* scripttempl/elf32msp430.sc: Add ALIGN directives before the
definition of __*_array_start symbols.
* testsuite/ld-msp430-elf/finiarray-warn.ld: New test.
* testsuite/ld-msp430-elf/finiarray-warn.r: New test.
* testsuite/ld-msp430-elf/initarray-nowarn.ld: New test.
* testsuite/ld-msp430-elf/initarray-warn.ld: New test.
* testsuite/ld-msp430-elf/initarray-warn.r: New test.
* testsuite/ld-msp430-elf/initarray.s: New test.
* testsuite/ld-msp430-elf/msp430-elf.exp: Run new tests.
* testsuite/ld-msp430-elf/preinitarray-warn.ld: New test.
* testsuite/ld-msp430-elf/preinitarray-warn.r: New test.
Jozef Lawrynowicz [Fri, 28 Aug 2020 12:56:53 +0000 (13:56 +0100)]
LD: Add new %pU vfinfo format for printing linker script name
The %pT vfinfo format prints the linker script name with a line number,
however sometimes it may be necessary to print the linker script name
without any associated line number.
ld/ChangeLog:
* ldmisc.c (vfinfo): Support new "%pU" format specifier.
Alan Modra [Fri, 28 Aug 2020 12:15:49 +0000 (21:45 +0930)]
PR26418 UBSAN: cache.c:386 null pointer fwrite
The previous "fix" tested the wrong value.
PR 26418
* ecofflink.c (WRITE): Really don't write zero size chunks.
Tuckker [Fri, 28 Aug 2020 12:27:16 +0000 (13:27 +0100)]
Prevent the linker from overestimating the alignment requirement of common symbols on targets with octets that are larger than one byte.
PR 26543
* linker.c (bfd_generic_define_common_symbol): Force the alignment
to 1 if the section has now alignment requirement.
Tom de Vries [Fri, 28 Aug 2020 10:02:20 +0000 (12:02 +0200)]
[gdb/breakpoint] Handle setting breakpoint on label without address
Consider test-case test.c:
...
$ cat test.c
int main (void) {
return 0;
L1:
(void)0;
}
...
Compiled with debug info:
...
$ gcc test.c -g
...
When attempting to set a breakpoint at L1, which is a label without address:
...
<1><f4>: Abbrev Number: 2 (DW_TAG_subprogram)
<f5> DW_AT_name : main
<2><115>: Abbrev Number: 3 (DW_TAG_label)
<116> DW_AT_name : L1
<119> DW_AT_decl_file : 1
<11a> DW_AT_decl_line : 5
<2><11b>: Abbrev Number: 0
...
we run into an internal-error:
...
$ gdb -batch a.out -ex "b main:L1"
linespec.c:3233: internal-error: void \
decode_line_full(const event_location*, int, program_space*, symtab*, \
int, linespec_result*, const char*, const char*): \
Assertion `result.size () == 1 || canonical->pre_expanded' failed.
A problem internal to GDB has been detected,
further debugging may prove unreliable.
...
Fix this by detecting the error condition in decode_line_full instead, and
throwing an error, such that we have instead:
...
(gdb) b main:L1
Location main:L1 not available
(gdb)
...
Unfortunately, to call event_location_to_string, which is used to get the
location name in the error message, we need to pass a non-const struct
event_location, because the call may cache the string in the struct (See
EL_STRING). So, we change the prototype of decode_line_full accordingly, and
everywhere this propages to.
Tested on x86_64-linux.
gdb/ChangeLog:
2020-08-28 Tom de Vries <tdevries@suse.de>
PR breakpoint/26544
* breakpoint.c (parse_breakpoint_sals): Remove const from struct
event_location.
(create_breakpoint): Same.
(base_breakpoint_decode_location): Same.
(bkpt_create_sals_from_location): Same.
(bkpt_decode_location): Same.
(bkpt_probe_create_sals_from_location): Same.
(bkpt_probe_decode_location): Same.
(tracepoint_create_sals_from_location): Same.
(tracepoint_decode_location): Same.
(tracepoint_probe_decode_location): Same.
(strace_marker_create_sals_from_location): Same.
(strace_marker_decode_location): Same.
(create_sals_from_location_default): Same.
(decode_location_default): Same.
* breakpoint.h (struct breakpoint_ops): Same.
(create_breakpoint): Same.
* linespec.h (decode_line_full): Same.
* linespec.c (decode_line_full): Same. Throw error if
result.size () == 0.
gdb/testsuite/ChangeLog:
2020-08-28 Tom de Vries <tdevries@suse.de>
* gdb.base/label-without-address.c: New test.
* gdb.base/label-without-address.exp: New file.
Cooper Qu [Wed, 26 Aug 2020 03:21:14 +0000 (11:21 +0800)]
CSKY: Support attribute section.
bfd
* elf32-csky.c (csky_archs): Fix arch names.
(csky_find_arch_with_name): New.
(elf32_csky_merge_attributes): New.
(csky_elf_merge_private_bfd_data): Add process of merge
attribute section.
(elf32_csky_obj_attrs_arg_type): New.
(elf32_csky_obj_attrs_handle_unknown): New.
(elf_backend_obj_attrs_vendor): Define.
(elf_backend_obj_attrs_section): Define.
(elf_backend_obj_attrs_arg_type): Define.
(elf_backend_obj_attrs_section_type): Define.
binutils/
* readelf.c (get_csky_section_type_name): New.
(get_section_type_name): Add handler for CSKY.
(display_csky_attribute): New.
(process_arch_specific): Add handler for CSKY.
* testsuite/binutils-all/strip-3.d: Remove .csky.attributes
section.
elfcpp/
* elfcpp.h (enum SHT): New enum SHT_CSKY_ATTRIBUTES.
gas/
* gas/config/tc-csky.c (md_begin): Set attributes.
(isa_flag): Change type to unsigned 64 bits.
(struct csky_cpu_info): Likewise.
(struct csky_macro_info): Likewise.
(set_csky_attribute): New.
* testsuite/gas/csky/802j.d: Ignore .csky.attributes section.
* testsuite/gas/csky/all.d: Likewise.
* testsuite/gas/csky/bsr1.d: Likewise.
* testsuite/gas/csky/csky_vdsp.d: Likewise.
* testsuite/gas/csky/cskyv2_all.d: Likewise.
* testsuite/gas/csky/cskyv2_ck803r2.d: Likewise.
* testsuite/gas/csky/cskyv2_ck860.d: Likewise.
* testsuite/gas/csky/cskyv2_dsp.d: Likewise.
* testsuite/gas/csky/cskyv2_elrw.d: Likewise.
* testsuite/gas/csky/cskyv2_float.d: Likewise.
* testsuite/gas/csky/enhance_dsp.d: Likewise.
* testsuite/gas/csky/java.d: Likewise.
* testsuite/gas/csky/v1_float.d: Likewise.
* testsuite/gas/csky/v2_float_part1.d: Likewise.
* testsuite/gas/csky/v2_float_part2.d: Likewise.
* testsuite/gas/csky/v2_tls_gd.d: Likewise.
* testsuite/gas/csky/v2_tls_ie.d: Likewise.
* testsuite/gas/csky/v2_tls_ld.d: Likewise.
* testsuite/gas/csky/v2_tls_le.d: Likewise.
* testsuite/gas/elf/elf.exp: Add handler for CSKY.
* testsuite/gas/elf/section2.e-csky: New.
include/
* elf/csky.h (SHT_CSKY_ATTRIBUTES): Define.
(Tag_CSKY_ARCH_NAME): New enum constant.
(Tag_CSKY_CPU_NAME): Likewise.
(Tag_CSKY_ISA_FLAGS): Likewise.
(Tag_CSKY_DSP_VERSION): Likewise.
(Tag_CSKY_VDSP_VERSION): Likewise.
(Tag_CSKY_FPU_VERSION): Likewise.
(Tag_CSKY_FPU_ABI): Likewise.
(Tag_CSKY_FPU_ROUNDING): Likewise.
(Tag_CSKY_FPU_DENORMAL): Likewise.
(Tag_CSKY_FPU_Exception): Likewise.
(Tag_CSKY_FPU_NUMBER_MODULE): Likewise.
(Tag_CSKY_FPU_HARDFP): Likewise.
(Tag_CSKY_MAX): Likewise.
(VAL_CSKY_DSP_VERSION_EXTENSION): Likewise.
(VAL_CSKY_DSP_VERSION_2): Likewise.
(VAL_CSKY_VDSP_VERSION_1): Likewise.
(VAL_CSKY_VDSP_VERSION_2): Likewise.
(VAL_CSKY_FPU_ABI_SOFT): Likewise.
(VAL_CSKY_FPU_ABI_SOFTFP): Likewise.
(VAL_CSKY_FPU_ABI_HARD): Likewise.
(VAL_CSKY_FPU_HARDFP_HALF): Likewise.
(VAL_CSKY_FPU_HARDFP_SINGLE): Likewise.
(VAL_CSKY_FPU_HARDFP_DOUBLE): Likewise.
* opcode/csky.h (CSKY_ISA_VDSP_V2): Define.
CSKYV1_ISA_E1: Change to long constant type.
CSKYV2_ISA_E1: Likewise.
CSKYV2_ISA_1E2: Likewise.
CSKYV2_ISA_2E3: Likewise.
CSKYV2_ISA_3E7: Likewise.
CSKYV2_ISA_7E10: Likewise.
CSKYV2_ISA_3E3R1: Likewise.
CSKYV2_ISA_3E3R2: Likewise.
CSKYV2_ISA_10E60: Likewise.
CSKY_ISA_TRUST: Likewise.
CSKY_ISA_CACHE: Likewise.
CSKY_ISA_NVIC: Likewise.
CSKY_ISA_CP: Likewise.
CSKY_ISA_MP: Likewise.
CSKY_ISA_MP_1E2: Likewise.
CSKY_ISA_JAVA: Likewise.
CSKY_ISA_MAC: Likewise.
CSKY_ISA_MAC_DSP: Likewise.
CSKY_ISA_DSP: Likewise.
CSKY_ISA_DSP_1E2: Likewise.
CSKY_ISA_DSP_ENHANCE: Likewise.
CSKY_ISA_FLOAT_E1: Likewise.
CSKY_ISA_FLOAT_1E2: Likewise.
CSKY_ISA_FLOAT_1E3: Likewise.
CSKY_ISA_FLOAT_3E4: Likewise.
CSKY_ISA_VDSP: Likewise.
ld/
* emulparams/cskyelf.sh: Support attribute section.
* testsuite/ld-csky/tls-le-v1.d: Match .csky.attributes section.
* ld/testsuite/ld-csky/tls-le.d: Likewise.
* testsuite/ld-elf/non-contiguous.ld: Ignore .csky.attributes
section.
opcodes/
* csky-dis.c (CSKY_DEFAULT_ISA): Define.
(csky_dis_info): Add member isa.
(csky_find_inst_info): Skip instructions that do not belong to
current CPU.
(csky_get_disassembler): Get infomation from attribute section.
(print_insn_csky): Set defualt ISA flag.
* csky.h (CSKY_ISA_VDSP_2): Rename from CSKY_ISA_VDSP_V2.
* csky-opc.h (struct csky_opcode): Change isa_flag16 and
isa_flag32'type to unsigned 64 bits.
Nick Clifton [Fri, 28 Aug 2020 08:43:13 +0000 (09:43 +0100)]
Fixes for testsuite failures introduced by the changes made for PR 19011.
PR19011
bfd * cofflink.c (_bfd_coff_generic_relocate_section): Provide a value
for undefined symbols which will not generate extra warning
messages about truncated relocs.
ld * testsuite/lib/ld-lib.exp (ld_link_defsyms): For PE based targets
define the __main and ___main symbols in terms of the main symbol.
Alan Modra [Fri, 28 Aug 2020 01:21:28 +0000 (10:51 +0930)]
mingw plugin test regressions due to commit
514b4e191d5f
Fixes new failures due to image base change.
PR 19011
* testsuite/ld-plugin/plugin.exp: Use modified CFLAGS throughout
file. Add --image-base for pecoff.
Nelson Chu [Wed, 26 Aug 2020 08:19:13 +0000 (01:19 -0700)]
RISC-V: Treat R_RISCV_CALL and R_RISCV_CALL_PLT as the same in check_relocs.
In fact, we can treate these two relocation as the same one in the
riscv_elf_check_relocs. I have heard that RISC-V lld had made this
improvement, and so had GNU AARCH64, they only need R_AARCH64_CALL26
for calls rather than two seperate relocations.
Beside, the following PLT issue for RISC-V 32-bit glibc seems to be
fixed by applying at least this patch.
<https://sourceware.org/pipermail/libc-alpha/2020-August/117214.html>
I have ran the toolchain regression, and everything seems fine for now.
bfd/
* elfnn-riscv.c (riscv_elf_check_relocs): Treat R_RISCV_CALL
and R_RISCV_CALL_PLT as the same in the riscv_elf_check_relocs.
(riscv_elf_relocate_section): Remove the R_RISCV_CALL for the
unresolved reloc checks.
ld/
testsuite/ld-riscv-elf/lib-nopic-01a.s: Use R_RISCV_JAL rather
than R_RISCV_CALL.
testsuite/ld-riscv-elf/lib-nopic-01b.d: Likewise.
testsuite/ld-riscv-elf/lib-nopic-01b.s: Likewise.
GDB Administrator [Fri, 28 Aug 2020 00:00:10 +0000 (00:00 +0000)]
Automatic date update in version.in
Pedro Alves [Thu, 27 Aug 2020 20:03:53 +0000 (21:03 +0100)]
Fix advance/until and multiple locations (PR gdb/26524)
If you do "advance LINESPEC", and LINESPEC expands to more than one
location, GDB just errors out:
if (sals.size () != 1)
error (_("Couldn't get information on specified line."));
For example, advancing to a line in an inlined function, inlined three
times:
(gdb) b 21
Breakpoint 1 at 0x55555555516f: advance.cc:21. (3 locations)
(gdb) info breakpoints
Num Type Disp Enb Address What
1 breakpoint keep y <MULTIPLE>
1.1 y 0x000055555555516f in inline_func at advance.cc:21
1.2 y 0x000055555555517e in inline_func at advance.cc:21
1.3 y 0x000055555555518d in inline_func at advance.cc:21
(gdb) advance 21
Couldn't get information on specified line.
(gdb)
Similar issue with the "until" command, as it shares the
implementation with "advance".
Since, as the comment in gdb.base/advance.exp says, "advance <location>"
is really just syntactic sugar for "tbreak <location>;continue",
fix this by making GDB insert a breakpoint at all the resolved
locations.
A new testcase is included, which exercises both "advance" and
"until", in two different cases expanding to multiple locations:
- inlined functions
- C++ overloads
This also exercises the inline frames issue fixed by the previous
patch.
gdb/ChangeLog:
PR gdb/26524
* breakpoint.c (until_break_fsm) <location_breakpoint,
caller_breakpoint>: Delete fields.
<breakpoints>: New field.
<until_break_fsm>: Adjust to save a breakpoint vector instead of
two individual breakpoints.
(until_break_fsm::should_stop): Loop over breakpoints in the
breakpoint vector.
(until_break_fsm::clean_up): Adjust to clear the breakpoints
vector.
(until_break_command): Handle location expanding into multiple
sals.
gdb/testsuite/ChangeLog:
PR gdb/26523
PR gdb/26524
* gdb.base/advance-until-multiple-locations.cc: New.
* gdb.base/advance-until-multiple-locations.exp: New.
Pedro Alves [Thu, 27 Aug 2020 20:03:53 +0000 (21:03 +0100)]
Fix advance/until and inline frames (PR gdb/26523)
If you do "tbreak LINENO; c" to advance to an inlined function, GDB
presents the stop at the inline frame instead of at the non-artificial
stack frame:
(gdb) list 21
18 static inline __attribute__ ((always_inline)) int
19 inline_func (int i)
20 {
21 return i + 1;
22 }
(gdb) tbreak 21
Temporary breakpoint 3 at 0x55555555516f: advance.cc:21.
(gdb) c
Continuing.
Temporary breakpoint 3, inline_func (i=0) at advance.cc:21
21 return i + 1;
The logic for this is in stopped_by_user_bp_inline_frame:
/* Loop over the stop chain and determine if execution stopped in an
inlined frame because of a breakpoint with a user-specified
location set at FRAME_BLOCK. */
static bool
stopped_by_user_bp_inline_frame (const block *frame_block, bpstat stop_chain)
If however, you do "advance LINENO" or "until LINENO" instead, GDB
presents the stop at the non-artificial frame:
(gdb) advance 21
main () at advance.cc:43
43 i = inline_func (i);
(gdb)
"advance" and "until" should really behave like user breakpoints here,
since their location is also user-specified. As the comment in
gdb.base/advance.exp says, "advance <location>" is really just
syntactic sugar for "tbreak <location>; continue".
Fix this by making stopped_by_user_bp_inline_frame also consider
advance/until breakpoints.
A testcase covering this will be included in the next patch.
gdb/ChangeLog:
PR gdb/26523
* inline-frame.c (stopped_by_user_bp_inline_frame): Also consider
bp_until breakpoints user-specified locations. Update intro
comment.
Jozef Lawrynowicz [Thu, 27 Aug 2020 19:48:35 +0000 (20:48 +0100)]
readelf: MSP430: Fix incorrect usage of "msp430x" in function names
The "X" in "MSP430X" indicates an extension to the original MSP430 ISA, but
these functions are generically used for all MSP430 ISAs, so the names should
not use the "X" suffix.
binutils/ChangeLog:
* readelf.c (get_msp430x_section_type_name): Rename to ...
(get_msp430_section_type_name): ... this.
(get_section_type_name): Use get_msp430_section_type_name.
(display_msp430x_attribute): Rename to ...
(display_msp430_attribute): ... this.
(process_arch_specific): Use display_msp430_attribute.
Jozef Lawrynowicz [Thu, 27 Aug 2020 17:17:43 +0000 (18:17 +0100)]
ld/emultempl/msp430.em: Remove unused variable
ld/ChangeLog:
* emultempl/msp430.em: Remove unused variable "buf".
Simon Marchi [Thu, 27 Aug 2020 18:42:12 +0000 (14:42 -0400)]
gdb/testsuite: use multi_line in gdb.dwarf2/dw2-reg-undefined.exp
Use multi_line to make the expected pattern more readable.
gdb/testsuite/ChangeLog:
* gdb.dwarf2/dw2-reg-undefined.exp: Use multi_line.
Change-Id: Ia8e42d156c0c30265121eb890e1db17a692dbaf0
Simon Marchi [Thu, 27 Aug 2020 16:54:00 +0000 (12:54 -0400)]
gdb: fix whitespace issues in ChangeLog files
Change-Id: I423867477d4342673e629dac71a80592fd879ea1
Andrew Burgess [Wed, 26 Aug 2020 13:05:45 +0000 (14:05 +0100)]
gdb/testsuite: make test names unique in gdb.arch/*.exp
Make the test names unique in gdb.arch/*.exp by either modifying the
test names or using with_test_prefix.
I have also fixed a typo 'forth' -> 'fourth' throughout gdb.arch/*.
Finally, I replaced code like this:
gdb_test "break [gdb_get_line_number "first breakpoint here"]" \
"Breakpoint .* at .*${srcfile}.*" \
"set first breakpoint in main"
With this:
gdb_breakpoint [gdb_get_line_number "first breakpoint here"]
In those files that I was already modifying for the other reasons
given above.
gdb/testsuite/ChangeLog:
* gdb.arch/amd64-byte.exp: Make test names unique, use
gdb_breakpoint, and fix typo 'forth' -> 'fourth'.
* gdb.arch/amd64-dword.exp: Likewise.
* gdb.arch/amd64-pseudo.c: Fix typo 'forth' -> 'fourth'.
* gdb.arch/amd64-stap-special-operands.exp: Make test names
unique.
* gdb.arch/amd64-tailcall-ret.exp: Likewise.
* gdb.arch/amd64-word.exp: Make test names unique, use
gdb_breakpoint, and fix typo 'forth' -> 'fourth'.
* gdb.arch/i386-byte.exp: Make test names unique, use
gdb_breakpoint.
* gdb.arch/i386-word.exp: Likewise.
John David Anglin [Thu, 27 Aug 2020 15:25:03 +0000 (15:25 +0000)]
Fix PR binutils/26356 on hppa*-*-hpux*.
PR 26356
* som.c (som_bfd_copy_private_section_data): Issue error when a
subspace is specified without its containing space.
* testsuite/binutils-all/objcopy.exp (objcopy --reverse-bytes): Add
"-j $PRIVATE$" to command on hppa*-*-hpux*.
* testsuite/lib/utils-lib.exp (default_binutils_run): Remove existing
dollar-sign quotes before quoting. Do this prior to generating log
output.
Ralf Habacker [Thu, 27 Aug 2020 14:59:53 +0000 (15:59 +0100)]
Corrects the broken line number incrementation in the Windows resource parser
When the tokens MCLINE, MCENDLINE, and MCCOMMENT were created, the
line number was not increased, which led to an incorrect value in
the error output.
PR 26088
* mclex.c (skip_until_eol): if eol was found, increment line number
Simon Marchi [Thu, 27 Aug 2020 12:58:43 +0000 (08:58 -0400)]
gdb: add gdb_bfd_sections for range-based iteration
I wanted to make a nicer / type-safe interface for
bfd_map_over_sections, avoiding the `void *` data parameter.
My first shot was to make a wrapper for bfd_map_over_sections,
gdb_bfd_map_over_sections that took a gdb::function_view.
However, I think that a range adapter gives nicer and simpler code, as a
simple for loop is easier to read than a callback / lambda function. So
here it is, it uses next_iterator and next_adapter, so it's not much
code.
As an example, I ported maintenance_info_sections and friends to use it.
The maint_print_section_data type could probably be removed now, but I
didn't want to do too much in one patch.
gdb/ChangeLog:
* gdb_bfd.h (gdb_bfd_section_iterator, gdb_bfd_section_range,
gdb_bfd_sections): New.
* maint.c (print_bfd_section_info): Change param type to
maint_print_section_data.
(print_objfile_section_info): Likewise.
(print_bfd_section_info_maybe_relocated): Likewise.
(maintenance_info_sections): Use gdb_bfd_sections.
Change-Id: Ib496f6b0a0eb7aadb10da1dd381304014d934ea0
Nick Clifton [Thu, 27 Aug 2020 12:52:45 +0000 (13:52 +0100)]
Nick Clifton [Thu, 27 Aug 2020 12:47:02 +0000 (13:47 +0100)]
Fix linker testcase for alpha-linux affected by fix for PR 26416
PR 26416
* testsuite/ld-alpha/tlsbinr.rd: Update expected output.
* testsuite/ld-alpha/tlsbinr.dd: Likewise.
* testsuite/ld-alpha/tlsbinr.sd: Likewise.
Alan Modra [Thu, 27 Aug 2020 12:14:41 +0000 (21:44 +0930)]
PR26469 UBSAN: elflink.c:8742 shift exponent
6148914691236511722
PR 26469
* elflink.c: Include limits.h.
(CHAR_BIT): Provide fallback define.
(set_symbol_value): Correct complex reloc comment.
(undefined_reference): Set bfd_error.
(BINARY_OP_HEAD, BINARY_OP_TAIL): Split out from..
(BINARY_OP): ..this.
(eval_symbol): Limit shifts. Force unsigned for left shift.
Catch divide by zero.
* configure.ac (AC_CHECK_HEADERS): Combine, sort and add limits.h.
* configure: Regenerate.
* config.in: Regenerate.
Alan Modra [Thu, 27 Aug 2020 04:16:45 +0000 (13:46 +0930)]
PR26467 UBSAN: cgen.c:762 shift exponent
18446744073709551615
PR 26467
* cgen.c (weak_operand_overflow_check): Handle opmask for
operand length zero. Use 1UL constant.
Alan Modra [Thu, 27 Aug 2020 03:55:31 +0000 (13:25 +0930)]
PR26462 UBSAN: reloc.c:473 shift exponent
4294967295
PR 26462
* reloc.c (bfd_check_overflow): Return early if zero bitsize.
Alan Modra [Thu, 27 Aug 2020 03:20:20 +0000 (12:50 +0930)]
arm-symbianelf segfault
Yes, the target is marked obsolete due to this and other segfaults,
but this one is easy enough to fix.
* elf32-arm.c (elf32_arm_final_link_relocate): Don't segfault
on sym_sec not being output.
Alan Modra [Thu, 27 Aug 2020 12:24:16 +0000 (21:54 +0930)]
Re: commit
eae0b5c3b2d6b
PR 26416
* elf64-alpha.c (elf64_alpha_relax_tls_get_addr): Correct "dynamic".
Nick Alcock [Wed, 29 Jul 2020 12:50:10 +0000 (13:50 +0100)]
binutils, ld: dequote libctf error messages
These are not identifiers and should not be quoted. (Also, quoting them
just looks odd.)
Adjust diagnostics tests accordingly.
binutils/ChangeLog
2020-08-27 Nick Alcock <nick.alcock@oracle.com>
* objdump.c (dump_ctf_errs): Unquote CTF error messages.
* readelf.c (dump_ctf_errs): Likewise.
ld/ChangeLog
2020-08-27 Nick Alcock <nick.alcock@oracle.com>
* ldlang.c (dump_ctf_errs): Unquote CTF error messages.
(ldlang_open_ctf): Likewise.
(lang_merge_ctf): Likewise.
(lang_write_ctf): Likewise.
* testsuite/ld-ctf/diag-ctf-version-f.d: Adjust.
* testsuite/ld-ctf/diag-cttname-invalid.d: Adjust.
* testsuite/ld-ctf/diag-decompression-failure.d: Adjust.
* testsuite/ld-ctf/diag-parname.d: Adjust.
* testsuite/ld-ctf/diag-unsupported-flag.d: Adjust.
* testsuite/ld-ctf/diag-wrong-magic-number-mixed.d: Adjust.
* testsuite/ld-ctf/diag-wrong-magic-number.d: Adjust.
Nick Alcock [Mon, 27 Jul 2020 15:45:15 +0000 (16:45 +0100)]
libctf, binutils, include, ld: gettextize and improve error handling
This commit follows on from the earlier commit "libctf, ld, binutils:
add textual error/warning reporting for libctf" and converts every error
in libctf that was reported using ctf_dprintf to use ctf_err_warn
instead, gettextizing them in the process, using N_() where necessary to
avoid doing gettext calls unless an error message is actually generated,
and rephrasing some error messages for ease of translation.
This requires a slight change in the ctf_errwarning_next API: this API
is public but has not been in a release yet, so can still change freely.
The problem is that many errors are emitted at open time (whether
opening of a CTF dict, or opening of a CTF archive): the former of these
throws away its incompletely-initialized ctf_file_t rather than return
it, and the latter has no ctf_file_t at all. So errors and warnings
emitted at open time cannot be stored in the ctf_file_t, and have to go
elsewhere.
We put them in a static local in ctf-subr.c (which is not very
thread-safe: a later commit will improve things here): ctf_err_warn with
a NULL fp adds to this list, and the public interface
ctf_errwarning_next with a NULL fp retrieves from it.
We need a slight exception from the usual iterator rules in this case:
with a NULL fp, there is nowhere to store the ECTF_NEXT_END "error"
which signifies the end of iteration, so we add a new err parameter to
ctf_errwarning_next which is used to report such iteration-related
errors. (If an fp is provided -- i.e., if not reporting open errors --
this is optional, but even if it's optional it's still an API change.
This is actually useful from a usability POV as well, since
ctf_errwarning_next is usually called when there's been an error, so
overwriting the error code with ECTF_NEXT_END is not very helpful!
So, unusually, ctf_errwarning_next now uses the passed fp for its
error code *only* if no errp pointer is passed in, and leaves it
untouched otherwise.)
ld, objdump and readelf are adapted to call ctf_errwarning_next with a
NULL fp to report open errors where appropriate.
The ctf_err_warn API also has to change, gaining a new error-number
parameter which is used to add the error message corresponding to that
error number into the debug stream when LIBCTF_DEBUG is enabled:
changing this API is easy at this point since we are already touching
all existing calls to gettextize them. We need this because the debug
stream should contain the errno's message, but the error reported in the
error/warning stream should *not*, because the caller will probably
report it themselves at failure time regardless, and reporting it in
every error message that leads up to it leads to a ridiculous chattering
on failure, which is likely to end up as ridiculous chattering on stderr
(trimmed a bit):
CTF error: `ld/testsuite/ld-ctf/A.c (0): lookup failure for type 3: flags 1: The parent CTF dictionary is unavailable'
CTF error: `ld/testsuite/ld-ctf/A.c (0): struct/union member type hashing error during type hashing for type
80000001, kind 6: The parent CTF dictionary is unavailable'
CTF error: `deduplicating link variable emission failed for ld/testsuite/ld-ctf/A.c: The parent CTF dictionary is unavailable'
ld/.libs/lt-ld-new: warning: CTF linking failed; output will have no CTF section: `The parent CTF dictionary is unavailable'
We only need to be told that the parent CTF dictionary is unavailable
*once*, not over and over again!
errmsgs are still emitted on warning generation, because warnings do not
usually lead to a failure propagated up to the caller and reported
there.
Debug-stream messages are not translated. If translation is turned on,
there will be a mixture of English and translated messages in the debug
stream, but rather that than burden the translators with debug-only
output.
binutils/ChangeLog
2020-08-27 Nick Alcock <nick.alcock@oracle.com>
* objdump.c (dump_ctf_archive_member): Move error-
reporting...
(dump_ctf_errs): ... into this separate function.
(dump_ctf): Call it on open errors.
* readelf.c (dump_ctf_archive_member): Move error-
reporting...
(dump_ctf_errs): ... into this separate function. Support
calls with NULL fp. Adjust for new err parameter to
ctf_errwarning_next.
(dump_section_as_ctf): Call it on open errors.
include/ChangeLog
2020-08-27 Nick Alcock <nick.alcock@oracle.com>
* ctf-api.h (ctf_errwarning_next): New err parameter.
ld/ChangeLog
2020-08-27 Nick Alcock <nick.alcock@oracle.com>
* ldlang.c (lang_ctf_errs_warnings): Support calls with NULL fp.
Adjust for new err parameter to ctf_errwarning_next. Only
check for assertion failures when fp is non-NULL.
(ldlang_open_ctf): Call it on open errors.
* testsuite/ld-ctf/ctf.exp: Always use the C locale to avoid
breaking the diags tests.
libctf/ChangeLog
2020-08-27 Nick Alcock <nick.alcock@oracle.com>
* ctf-subr.c (open_errors): New list.
(ctf_err_warn): Calls with NULL fp append to open_errors. Add err
parameter, and use it to decorate the debug stream with errmsgs.
(ctf_err_warn_to_open): Splice errors from a CTF dict into the
open_errors.
(ctf_errwarning_next): Calls with NULL fp report from open_errors.
New err param to report iteration errors (including end-of-iteration)
when fp is NULL.
(ctf_assert_fail_internal): Adjust ctf_err_warn call for new err
parameter: gettextize.
* ctf-impl.h (ctfo_get_vbytes): Add ctf_file_t parameter.
(LCTF_VBYTES): Adjust.
(ctf_err_warn_to_open): New.
(ctf_err_warn): Adjust.
(ctf_bundle): Used in only one place: move...
* ctf-create.c: ... here.
(enumcmp): Use ctf_err_warn, not ctf_dprintf, passing the err number
down as needed. Don't emit the errmsg. Gettextize.
(membcmp): Likewise.
(ctf_add_type_internal): Likewise.
(ctf_write_mem): Likewise.
(ctf_compress_write): Likewise. Report errors writing the header or
body.
(ctf_write): Likewise.
* ctf-archive.c (ctf_arc_write_fd): Use ctf_err_warn, not
ctf_dprintf, and gettextize, as above.
(ctf_arc_write): Likewise.
(ctf_arc_bufopen): Likewise.
(ctf_arc_open_internal): Likewise.
* ctf-labels.c (ctf_label_iter): Likewise.
* ctf-open-bfd.c (ctf_bfdclose): Likewise.
(ctf_bfdopen): Likewise.
(ctf_bfdopen_ctfsect): Likewise.
(ctf_fdopen): Likewise.
* ctf-string.c (ctf_str_write_strtab): Likewise.
* ctf-types.c (ctf_type_resolve): Likewise.
* ctf-open.c (get_vbytes_common): Likewise. Pass down the ctf dict.
(get_vbytes_v1): Pass down the ctf dict.
(get_vbytes_v2): Likewise.
(flip_ctf): Likewise.
(flip_types): Likewise. Use ctf_err_warn, not ctf_dprintf, and
gettextize, as above.
(upgrade_types_v1): Adjust calls.
(init_types): Use ctf_err_warn, not ctf_dprintf, as above.
(ctf_bufopen_internal): Likewise. Adjust calls. Transplant errors
emitted into individual dicts into the open errors if this turns
out to be a failed open in the end.
* ctf-dump.c (ctf_dump_format_type): Adjust ctf_err_warn for new err
argument. Gettextize. Don't emit the errmsg.
(ctf_dump_funcs): Likewise. Collapse err label into its only case.
(ctf_dump_type): Likewise.
* ctf-link.c (ctf_create_per_cu): Adjust ctf_err_warn for new err
argument. Gettextize. Don't emit the errmsg.
(ctf_link_one_type): Likewise.
(ctf_link_lazy_open): Likewise.
(ctf_link_one_input_archive): Likewise.
(ctf_link_deduplicating_count_inputs): Likewise.
(ctf_link_deduplicating_open_inputs): Likewise.
(ctf_link_deduplicating_close_inputs): Likewise.
(ctf_link_deduplicating): Likewise.
(ctf_link): Likewise.
(ctf_link_deduplicating_per_cu): Likewise. Add some missed
ctf_set_errnos to obscure error cases.
* ctf-dedup.c (ctf_dedup_rhash_type): Adjust ctf_err_warn for new
err argument. Gettextize. Don't emit the errmsg.
(ctf_dedup_populate_mappings): Likewise.
(ctf_dedup_detect_name_ambiguity): Likewise.
(ctf_dedup_init): Likewise.
(ctf_dedup_multiple_input_dicts): Likewise.
(ctf_dedup_conflictify_unshared): Likewise.
(ctf_dedup): Likewise.
(ctf_dedup_rwalk_one_output_mapping): Likewise.
(ctf_dedup_id_to_target): Likewise.
(ctf_dedup_emit_type): Likewise.
(ctf_dedup_emit_struct_members): Likewise.
(ctf_dedup_populate_type_mapping): Likewise.
(ctf_dedup_populate_type_mappings): Likewise.
(ctf_dedup_emit): Likewise.
(ctf_dedup_hash_type): Likewise. Fix a bit of messed-up error
status setting.
(ctf_dedup_rwalk_one_output_mapping): Likewise. Don't hide
unknown-type-kind messages (which signify file corruption).
Nick Alcock [Thu, 30 Jul 2020 16:43:12 +0000 (17:43 +0100)]
libctf, binutils: initial work towards libctf gettextization
We gettextize under our package name, which we change to a more
reasonable 'libctf'. Our internationalization support is mostly
provided by ctf-intl.h, which is a copy of opcodes/opintl.h with
the non-gettext_noop N_() expansion debracketed to avoid pedantic
compiler warnings.
The libctf error strings returned by ctf_errmsg are marked up for
internationalization.
(We also adjust binutils's Makefile a tiny bit to allow for the
fact that libctf now uses functions from libintl.)
binutils/ChangeLog
2020-08-27 Nick Alcock <nick.alcock@oracle.com>
* Makefile.am (readelf_LDADD): Move $(LIBINTL) after $(LIBCTF_NOBFD).
* Makefile.in: Regenerated.
libctf/ChangeLog
2020-08-27 Nick Alcock <nick.alcock@oracle.com>
* configure.ac: Adjust package name to simply 'libctf': arbitrarily
declare this to be version 1.2.0.
* Makefile.am (AM_CPPFLAGS): Add @INCINTL@.
* Makefile.in: Regenerated.
* configure: Regenerated.
* ctf-intl.h: New file, lightly modified from opcodes/opintl.h.
* ctf-impl.h: Include it.
* ctf-error.r (_ctf_errlist_t): Mark strings as noop-translatable.
(ctf_errmsg): Actually translate them.
Jeremy Drake [Thu, 27 Aug 2020 11:58:27 +0000 (12:58 +0100)]
Change the default characteristics of DLLs built by the linker to more secure settings.
PR 19011
* emultempl/pe.em (DEFAULT_DLL_CHARACTERISTICS): Define.
(pe_dll_characteristics): Initialise to DEFAULT_DLL_CHARACTERISTICS.
(add_options): Add options to disable DLL characteristics.
(list_options): List the new options.
(handle_options): Handle the new options.
* emultempl/pep.em: Similar changes to above.
(NT_EXE_IMAGE_BASE): Default to an address above 4G.
(NT_DLL_IMAGE_BASE, NT_DLL_AUTO_IMAGE_BASE,
(NT_DLL_AUTO_IMAGE_MASK): Likewise.
* ld.texi: Document the new options.
* pe-dll.c (pe_dll_enable_reloc_section): Change to default to
true.
(generate_reloc): Do nothing if there is no reloc section.
(pe_exe_fill_sections): Only assign the reloc section contents if
the section exists.
* testsuite/ld-pe/pe.exp: Add the --disable-reloc-section flag to
the .secrel32 tests.
* testsuite/ld-scripts/provide-8.d: Expect for fail on PE targets.
* NEWS: Mention the change in DLL generation.
GDB Administrator [Thu, 27 Aug 2020 00:00:10 +0000 (00:00 +0000)]
Automatic date update in version.in
Christian Biesinger [Wed, 26 Aug 2020 22:37:28 +0000 (15:37 -0700)]
Update gnulib to current trunk
This fixes two issues on Windows: Update.
https://sourceware.org/pipermail/gdb-patches/2020-June/169978.html
gnulib/ChangeLog:
2020-08-26 Christian Biesinger <cbiesinger@google.com>
Pedro Alves <palves@redhat.com>
Joel Brobecker <brobecker@adacore.com>
* Makefile.in: Regenerate.
* aclocal.m4: Regenerate.
* config.in: Regenerate.
* configure: Regenerate.
* import/Makefile.am: Update.
* import/Makefile.in: Regenerate.
* import/alloca.in.h (if): Update.
* import/assure.h (affirm): Update.
* import/at-func.c: Update.
* import/attribute.h: New file.
* import/btowc.c: New file.
* import/canonicalize-lgpl.c: Update.
* import/count-one-bits.h (COUNT_ONE_BITS_GENERIC): Update.
(COUNT_ONE_BITS): Update.
(intrinsic): Update.
(__popcnt64): Update.
(popcount_supported): Update.
* import/ctype.in.h: New file.
* import/dirent-private.h (WIN32_FIND_DATA): Update.
* import/dirent.in.h (_GL_ATTRIBUTE_PURE): Update.
* import/dirname.h: Update.
* import/dosname.h: Remove.
* import/error.h (_GL_ATTRIBUTE_FORMAT): Update.
* import/extra/update-copyright: Update.
* import/fchdir.c: Update.
* import/fcntl.in.h (GNULIB_defined_rpl_fcntl): Update.
(GNULIB_defined_fcntl): Update.
* import/filename.h (HAS_DEVICE): Update.
(IS_ABSOLUTE_PATH): Update.
(IS_PATH_WITH_DIR): Update.
(FILE_SYSTEM_PREFIX_LEN): Update.
(_IS_DRIVE_LETTER): Update.
(FILE_SYSTEM_DRIVE_PREFIX_CAN_BE_RELATIVE): Update.
(IS_ABSOLUTE_FILE_NAME): Update.
(IS_RELATIVE_FILE_NAME): Update.
(IS_FILE_NAME_WITH_DIR): Update.
* import/filenamecat-lgpl.c (mfile_name_concat): Update.
* import/fnmatch.c (WIDE_CHAR_SUPPORT): Update.
(btowc): Update.
(iswctype): Update.
(mempcpy): Update.
(strnlen): Update.
(towlower): Update.
(wcscat): Update.
(wcslen): Update.
(wctype): Update.
(wmemchr): Update.
(wmempcpy): Update.
(SIZE_MAX): Update.
(isblank): Update.
(__libc_use_alloca): Update.
(alloca): Update.
(alloca_account): Update.
(STREQ): Update.
(CHAR_CLASS_MAX_LENGTH): Update.
(IS_CHAR_CLASS): Update.
(ISWCTYPE): Update.
(if): Update.
(HANDLE_MULTIBYTE): Update.
(internal_function): Update.
(FOLD): Update.
(CHAR): Update.
(UCHAR): Update.
(INT): Update.
(FCT): Update.
(EXT): Update.
(END): Update.
(L_): Update.
(BTOWC): Update.
(STRLEN): Update.
(STRCAT): Update.
(MEMPCPY): Update.
(MEMCHR): Update.
(WIDE_CHAR_VERSION): Update.
(STRUCT): Update.
(FINDIDX): Update.
(findidx): Update.
(ALLOCA_LIMIT): Update.
(SHLIB_COMPAT): Update.
* import/fnmatch_loop.c (struct STRUCT): Update.
(FCT): Update.
(EXT): Update.
(END): Update.
(str): Update.
(NEW_PATTERN): Update.
* import/getcwd.c: Update.
* import/getlogin_r.c (GetUserName): Update.
* import/getprogname.c (getprogname): Update.
* import/getrandom.c: New file.
* import/gettimeofday.c: Remove.
* import/glob.in.h (_Restrict_): Update.
* import/inttypes.in.h (_GL_FUNCDECL_RPL): Update.
(_GL_CXXALIAS_RPL): Update.
(_GL_FUNCDECL_SYS): Update.
(_GL_CXXALIAS_SYS): Update.
* import/isblank.c: New file.
* import/isnanl-nolibm.h (__has_builtin): Update.
* import/libc-config.h (versioned_symbol): Update.
(compat_symbol): Update.
* import/limits.in.h (_GL_ALREADY_INCLUDING_LIMITS_H): Update.
* import/m4/btowc.m4: New file.
* import/m4/ctype.m4: New file.
* import/m4/exponentl.m4: Update.
* import/m4/fnmatch.m4: Update.
* import/m4/getrandom.m4: New file.
* import/m4/glob.m4: Update.
* import/m4/gnulib-cache.m4: Update.
* import/m4/gnulib-common.m4: Update.
* import/m4/gnulib-comp.m4: Update.
* import/m4/inttypes.m4: Update.
* import/m4/isblank.m4: New file.
* import/m4/isnanl.m4: Update.
* import/m4/largefile.m4: Update.
* import/m4/mbtowc.m4: New file.
* import/m4/memmem.m4: Update.
* import/m4/minmax.m4: New file.
* import/m4/signal_h.m4: Update.
* import/m4/stdio_h.m4: Update.
* import/m4/stdlib_h.m4: Update.
* import/m4/string_h.m4: Update.
* import/m4/strnlen.m4: New file.
* import/m4/sys_random_h.m4: New file.
* import/m4/sys_socket_h.m4: Update.
* import/m4/sys_stat_h.m4: Update.
* import/m4/time_h.m4: Update.
* import/m4/unistd_h.m4: Update.
* import/m4/wchar_h.m4: Update.
* import/m4/wint_t.m4: Update.
* import/m4/wmemchr.m4: New file.
* import/m4/wmempcpy.m4: New file.
* import/math.in.h (__has_builtin): Update.
* import/mbrtowc.c (FALLTHROUGH): Update.
* import/mbtowc-impl.h: New file.
* import/mbtowc.c: New file.
* import/minmax.h: New file.
* import/open.c (open): Update.
* import/openat-proc.c (openat_proc_name): Update.
* import/openat.c (rpl_openat): Update.
(openat_needs_fchdir): Update.
* import/openat.h (FCHOWNAT_INLINE): Update.
(CHOWNAT_INLINE): Update.
(FCHMODAT_INLINE): Update.
(CHMODAT_INLINE): Update.
* import/opendir.c (WIN32_FIND_DATA): Update.
(GetFullPathName): Update.
(FindFirstFile): Update.
* import/readdir.c (FindNextFile): Update.
* import/rename.c (MoveFileEx): Update.
* import/rewinddir.c (FindFirstFile): Update.
* import/rmdir.c: Update.
* import/signal.in.h (_GL_FUNCDECL_RPL): Update.
(_GL_CXXALIAS_RPL): Update.
(_GL_FUNCDECL_SYS): Update.
(_GL_CXXALIAS_SYS): Update.
* import/stat-w32.c (_WIN32_WINNT): Update.
(LoadLibrary): Update.
(GetFinalPathNameByHandle): Update.
(GetProcAddress): Update.
(DWORD): Update.
(GetFileInformationByHandleExFunc): Update.
(GetFinalPathNameByHandleFunc): Update.
* import/stat.c (WIN32_FIND_DATA): Update.
(CreateFile): Update.
(FindFirstFile): Update.
* import/stdio.in.h (_GL_ATTRIBUTE_FORMAT): Update.
(_GL_FUNCDECL_RPL): Update.
(_GL_CXXALIAS_RPL): Update.
(_GL_FUNCDECL_SYS): Update.
(_GL_CXXALIAS_SYS): Update.
(_GL_FUNCDECL_RPL_1): Update.
(_GL_CXXALIAS_RPL_1): Update.
(_GL_CXXALIAS_SYS_CAST): Update.
* import/stdlib.in.h (_GL_ATTRIBUTE_PURE): Update.
(_GL_FUNCDECL_RPL): Update.
(_GL_CXXALIAS_RPL): Update.
(_GL_FUNCDECL_SYS): Update.
(_GL_CXXALIAS_SYS): Update.
* import/string.in.h (_GL_ATTRIBUTE_PURE): Update.
(_GL_WARN_ON_USE): Update.
(_GL_WARN_ON_USE_CXX): Update.
(_GL_FUNCDECL_RPL): Update.
(_GL_CXXALIAS_RPL): Update.
(_GL_CXXALIAS_SYS): Update.
(mbstok_r): Update.
* import/strnlen.c: New file.
* import/sys_random.in.h: New file.
* import/sys_socket.in.h (GNULIB_defined_socklen_t): Update.
(_GL_FUNCDECL_RPL): Update.
(_GL_CXXALIAS_RPL): Update.
(_GL_CXXALIAS_SYS_CAST): Update.
* import/sys_stat.in.h (_GL_FUNCDECL_RPL): Update.
(_GL_CXXALIAS_RPL): Update.
(_GL_FUNCDECL_SYS): Update.
(_GL_CXXALIAS_SYS): Update.
(lchmod): Update.
(_GL_CXXALIAS_RPL_1): Update.
(stat): Update.
* import/tempname.c (__set_errno): Update.
(__secure_getenv): Update.
(__try_tempname): Update.
(__getpid): Update.
(__gettimeofday): Update.
(RANDOM_BITS): Update.
(uint64_t): Update.
(RANDOM_VALUE_MAX): Update.
(BASE_62_DIGITS): Update.
(BASE_62_POWER): Update.
(try_tempname_len): Update.
(try_file): Update.
(try_dir): Update.
(try_nocreate): Update.
(gen_tempname_len): Update.
(__gen_tempname): Update.
(try_tempname): Update.
* import/tempname.h (gen_tempname_len): Update.
(try_tempname_len): Update.
* import/time.in.h (_GL_FUNCDECL_RPL): Update.
(_GL_CXXALIAS_RPL): Update.
(_GL_CXXALIAS_SYS): Update.
* import/unistd.in.h (if): Update.
(_GL_FUNCDECL_SYS): Update.
(_GL_CXXALIAS_SYS): Update.
(_GL_CXXALIASWARN): Update.
(_GL_WARN_ON_USE): Update.
(_GL_FUNCDECL_RPL): Update.
(_GL_CXXALIAS_RPL): Update.
* import/verify.h: Update.
* import/warn-on-use.h (_GL_WARN_ON_USE_CXX): Update.
* import/wchar.in.h (_GL_ATTRIBUTE_PURE): Update.
(_GL_FUNCDECL_RPL): Update.
(_GL_CXXALIAS_RPL): Update.
(_GL_FUNCDECL_SYS): Update.
(_GL_CXXALIAS_SYS): Update.
(_GL_CXXALIASWARN): Update.
(_GL_WARN_ON_USE): Update.
(_GL_CXXALIAS_SYS_CAST2): Update.
(_GL_CXXALIASWARN1): Update.
* import/windows-rwlock.c (CreateEvent): Update.
* import/wmemchr-impl.h: New file.
* import/wmemchr.c: New file.
* import/wmempcpy.c: New file.
* update-gnulib.sh (IMPORTED_GNULIB_MODULES): Add gettimeofday.
(GNULIB_COMMIT_SHA1): Update gnulib revision.
H.J. Lu [Wed, 26 Aug 2020 18:28:26 +0000 (11:28 -0700)]
ld: Add $NOSANTIZE_CFLAGS to more linker tests
-fsanitize= can be used to build binutils with
$ CC="gcc -fsanitize=address,undefined" CXX="g++ -fsanitize=address,undefined" .../configure --disable-werror
Since not all linker tests are compatible with -fsanitize=, pass
$NOSANTIZE_CFLAGS to disable -fsanitize= for such tests.
* testsuite/ld-elf/indirect.exp: Append $NOSANTIZE_CFLAGS to CC.
* testsuite/ld-elf/shared.exp: Likewise.
* testsuite/ld-elfcomm/elfcomm.exp: Likewise.
* testsuite/ld-elfvers/vers.exp: Likewise.
* testsuite/ld-elfvsb/elfvsb.exp: Likewise.
* testsuite/ld-elfweak/elfweak.exp: Likewise.
* testsuite/ld-plugin/lto.exp: Likewise.
* testsuite/ld-plugin/plugin.exp: Likewise.
* testsuite/ld-scripts/crossref.exp: Likewise.
Nick Clifton [Wed, 26 Aug 2020 16:43:39 +0000 (17:43 +0100)]
Fix sanitization problems in the BFD library when running the linker testsuite for the AVR target.
PR 26433
* elf32-avr.c (avr_final_link_relocate): Fix undefined shift
behaviour.
(avr_elf32_load_records_from_section): Use bfd_get_16 and
bfd_get_32 to load values from potentially unaligned pointers.
Nick Clifton [Wed, 26 Aug 2020 15:26:13 +0000 (16:26 +0100)]
Fix sanitization problems running the linker testsuite for the alpha-elf target.
PR 26416
* elf64-alpha.c (elf64_alpha_relax_tls_get_addr): Test for and
ignore local symbols.
(elf64_alpha_relax_got_load): Do not check for local dynamic
symbols.
(OP_LDA, OP_LDAH, OP_LDQ, OP_BR, OP_BSR): Use unsigned constant
values.
(INSN_A) Cast the A parameter to unsigned.
(INSN_AB): Define in terms of INSN_A.
(INSN_ABC): Likewise.
(INSN_ABO): Likewise.
(INSN_AD): Likewise.
Nick Clifton [Wed, 26 Aug 2020 14:50:36 +0000 (15:50 +0100)]
Fix a sanitization problem running the linker testsuite for the AArch64 target.
PR 26411
* elfnn-aarch64.c (elfNN_aarch64_relocate_section): Use an
unsigned long constant when creating a mask to test for alignment
issues.
Jose E. Marchesi [Wed, 26 Aug 2020 14:48:39 +0000 (16:48 +0200)]
opcodes: Add missing entries to ebpf_isa_attr
opcodes/
* disassemble.c (enum epbf_isa_attr): Add ISA_XBPFBE, ISA_EBPFMAX.
Nick Clifton [Wed, 26 Aug 2020 14:13:41 +0000 (15:13 +0100)]
Add support to readelf for the OpenBSD segment types.
PR 26405
binutils* readelf.c (get_segment_type): Handle OpenBSD segment types.
include * elf/common.h (PT_OPENBSD_BOOTDATA): Define.
(PT_OPENBSD_RANDOMIZE): Define.
(PT_OPENBSD_WXNEEDED): Define.
Alan Modra [Wed, 26 Aug 2020 10:58:40 +0000 (20:28 +0930)]
PR26508 UBSAN: tc-xtensa.c:7764 null pointer bsearch
PR 26508
* config/tc-xtensa.c (xg_get_trampoline_chain): Return early
when n_entries is zero.
Alan Modra [Wed, 26 Aug 2020 10:55:04 +0000 (20:25 +0930)]
PR26507 UBSAN: elf32-xtensa.c:6013 null pointer bsearch
PR 26507
* elf32-xtensa.c (find_removed_literal): Don't bsearch empty map.
Alan Modra [Wed, 26 Aug 2020 10:50:11 +0000 (20:20 +0930)]
PR26506 UBSAN: elf32-xtensa.c:3203 null pointer memcpy
PR 26506
* elf32-xtensa.c (elf_xtensa_combine_prop_entries): Return early
when section is empty.
Alan Modra [Wed, 26 Aug 2020 10:42:42 +0000 (20:12 +0930)]
PR26499 UBSAN: eelf32_spu.c:537 member access null pointer
Another &p->field.
PR 26499
* emultempl/spuelf.em (spu_elf_relink): Check for NULL tmp_file_list.
Alan Modra [Wed, 26 Aug 2020 10:32:07 +0000 (20:02 +0930)]
PR26498 UBSAN: elf32-spu.c:2292 left shift overflow
PR 26498
* elf32-spu.c (find_function_stack_adjust): Use unsigned vars to
avoid UB left shift.
Alan Modra [Wed, 26 Aug 2020 10:13:18 +0000 (19:43 +0930)]
PR 26484-26488, 26490 UBSAN &h->elf null pointer
PR 26484
PR 26485
PR 26486
PR 26487
PR 26488
PR 26490
* elf64-ppc.c (is_tls_get_addr): Avoid UB &h->elf when h is NULL.
(ppc64_elf_tls_setup): Likewise.
(branch_reloc_hash_match): Likewise.
(build_plt_stub): Likewise.
(ppc64_elf_relocate_section): Likewise.
Alan Modra [Wed, 26 Aug 2020 09:02:30 +0000 (18:32 +0930)]
PR26478 UBSAN: mmo.c:2941 null pointer memcpy
PR 26478
* mmo.c (mmo_write_symbols_and_terminator): Don't memcpy empty table.
Alan Modra [Wed, 26 Aug 2020 08:52:07 +0000 (18:22 +0930)]
PR26475 UBSAN: elfxx-mips.c:12180 null pointer memset
Another memset(0,0,0)
PR 26475
* elfxx-mips.c (_bfd_mips_elf_finish_dynamic_sections): Check
sstubs->contents != NULL.
Alan Modra [Wed, 26 Aug 2020 01:30:22 +0000 (11:00 +0930)]
PR26458 UBSAN: elf32-i386.c:3615 left shift of negative value
Happens when poking symbol index -2 into r_info. (The index is
updated before writing out to file.)
PR 26458
* elf/common.h (ELF32_R_INFO): Cast symbol index to unsigned.
Alan Modra [Wed, 26 Aug 2020 08:28:40 +0000 (17:58 +0930)]
PR26453 UBSAN: som.c:2885 null pointer memcpy
PR 26453
* som.c (som_prep_for_fixups): Return early when no symbols.
Alan Modra [Wed, 26 Aug 2020 08:09:58 +0000 (17:39 +0930)]
PR26448 UBSAN: symbols.c:1586 left shift of negative value
Besides avoiding the UB, this also makes right shifts inside
expression symbols unsigned, consistent with the way gas evaluates
expressions in source.
PR 26448
* symbols.c: Include limits.h.
(resolve_symbol_value <O_left_shift, O_right_shift>): Do an
unsigned shift. Warn if shift count larger than valueT size.
Alan Modra [Wed, 26 Aug 2020 05:25:39 +0000 (14:55 +0930)]
PR26447 UBSAN: expr.c:1936 left shift of negative value
PR 26447
* expr.c (expr <O_left_shift>): Do an unsigned shift.
Alan Modra [Wed, 26 Aug 2020 04:53:42 +0000 (14:23 +0930)]
PR26431 UBSAN: pe-dll.c:568 null pointer bsearch
PR 26431
* pe-dll.c (auto_export): Don't call bsearch with zero count.
Alan Modra [Wed, 26 Aug 2020 04:48:53 +0000 (14:18 +0930)]
PR26418 UBSAN: cache.c:386 null pointer fwrite
PR 26418
* ecofflink.c (WRITE): Don't write size 0 chunks.
Alan Modra [Wed, 26 Aug 2020 02:02:51 +0000 (11:32 +0930)]
asan: alpha-vms: mmember access within null pointer
* bfdio.c (bfd_get_file_size): Don't segv on NULL adata.
Alan Modra [Wed, 26 Aug 2020 01:56:35 +0000 (11:26 +0930)]
PR26415 UBSAN: vms-misc.c:636 left shift cannot be represented
An unsigned short value is promoted to int, thus triggering UB on a
left shift of a positive value that results in a negative int.
PR 26415
* vms-misc.c (vms_time_t_to_vms_time): Don't use unsigned short vars.
Alan Modra [Wed, 26 Aug 2020 00:41:38 +0000 (10:11 +0930)]
PR26412 UBSAN: objcopy.c:3026 null pointer fwrite
PR 26412
* objcopy.c (copy_object): Don't fwrite NULL contents.
David Faust [Wed, 26 Aug 2020 13:39:00 +0000 (15:39 +0200)]
bpf: add xBPF ISA
This patch adds support for xBPF, another ISA targetting the BPF
virtual architecture. For now, the primary difference between eBPF
and xBPF is that xBPF supports indirect calls through the
'call %reg' form of the call instruction.
bfd/
* archures.c (bfd_mach_xbpf): Define.
* bfd-in2.h: Regenerate.
* cpu-bpf.c (bfd_xbpf_arch) New.
(bfd_bpf_arch) Update next in list field to point to xbpf arch.
cpu/
* bpf.cpu (arch bpf): Add xbpf mach and isas.
(define-xbpf-isa) New pmacro.
(all-isas) Add xbpfle,xbpfbe.
(endian-isas): New pmacro.
(mach xbpf): New.
(model xbpf-def): Likewise.
(h-gpr): Add xbpf mach.
(f-dstle, f-srcle, dstle, srcle): Add xbpfle isa.
(f-dstbe, f-srcbe, dstbe, srcbe): Add xbpfbe isa.
(define-alu-insn-un): Use new endian-isas pmacro.
(define-alu-insn-bin, define-alu-insn-mov): Likewise.
(define-endian-insn, define-lddw): Likewise.
(dlind, dxli, dxsi, dsti): Likewise.
(define-cond-jump-insn, define-call-insn): Likewise.
(define-atomic-insns): Likewise.
gas/
* config/tc-bpf.c: Add option -mxbpf to select xbpf isa.
* testsuite/gas/bpf/indcall-1.d: New file.
* testsuite/gas/bpf/indcall-1.s: Likewise.
* testsuite/gas/bpf/indcall-bad-1.l: Likewise.
* testsuite/gas/bpf/indcall-bad-1.s: Likewise.
* testsuite/gas/bpf/bpf.exp: Run new tests.
opcodes/
* bpf-desc.c: Regenerate.
* bpf-desc.h: Likewise.
* bpf-opc.c: Likewise.
* bpf-opc.h: Likewise.
* disassemble.c (disassemble_init_for_target): Set bits for xBPF
ISA when appropriate.
Katayama Hirofumi [Wed, 26 Aug 2020 10:57:02 +0000 (11:57 +0100)]
windres: AUTOCHECKBOX default style must have WS_TABSTOP style
PR 26340
* rcparse.y (AUTOCHECKBOX): Add WS_TABSTOP to the base style.
Shahab Vahedi [Wed, 5 Aug 2020 15:58:45 +0000 (17:58 +0200)]
gdb: Add ARC target and maintainer to MAINTAINERS
This patch updates gdb/MAINTAINERS with ARC as a target and
myself as the maintainer. There is no mention of "-Werror"
because that is enabled by default for gdb/ targets now.
gdb/ChangeLog:
* MAINTAINERS: Add ARC target and maintainer.
Alan Modra [Wed, 26 Aug 2020 02:10:28 +0000 (11:40 +0930)]
Re: CSKY: Add new arch CK860
bfd-in2.h is a generated file. Put the new machine where it belongs.
* archures.c (bfd_mach_ck860): Define.
GDB Administrator [Wed, 26 Aug 2020 00:00:10 +0000 (00:00 +0000)]
Automatic date update in version.in
Anton Kolesov [Wed, 6 Jul 2016 17:36:49 +0000 (20:36 +0300)]
arc: Add GNU/Linux support for ARC
ARC Linux targets differences from baremetal:
- No support for hardware single instruction stepping.
- Different access rules to registers.
- Use of another instruction for breakpoints.
v2: Changes after Tom's remarks [1]
arc-linux-tdep.c
- Use true/false instead of TRUE/FALSE.
- arc_linux_sw_breakpoint_from_kind (): Break long lines into two.
- arc_linux_sw_breakpoint_from_kind (): Remove starting blank line.
- Use explicit number evaluation, e.g: if (a & b) -> if ((a & b) != 0)
arc-tdep.c
- Use explicit number evaluation, e.g: if (a & b) -> if ((a & b) != 0)
gdb/configure.tgt
- arc*-*-linux*): Remove "build_gdbserver=yes".
v3: Changes after Simon's remarks [2]
arc-linux-tdep.c
- Use "return trap_size" instead of cryptic "return 2".
- Removed unnecessary curly braces.
- Removed "void" from "_initialize_arc_linux_tdep (void)".
v5: Changes after Simon's remarks [3]
- Remove unnecessary empty lines.
- Replace "breakpoint uses" with "breakpoints use" in a comment.
- "return condition;" i.s.o. "if (condition) return true; else return false;"
[1] Tom's remarks
https://sourceware.org/pipermail/gdb-patches/2020-April/167887.html
[2] Simon's remarks on v2
https://sourceware.org/pipermail/gdb-patches/2020-May/168513.html
[3] Simon's remarks on v4
https://sourceware.org/pipermail/gdb-patches/2020-August/170994.html
gdb/ChangeLog:
2020-08-25 Anton Kolesov <anton.kolesov@synopsys.com>
* configure.tgt: ARC support for GNU/Linux.
* Makefile.in (ALL_TARGET_OBJS): Likewise.
* arc-linux-tdep.c: New file.
* arc-tdep.h (ARC_STATUS32_L_MASK, ARC_STATUS32_DE_MASK): Declare.
* arc-tdep.c (arc_write_pc): Use it.
Shahab Vahedi [Thu, 9 Jul 2020 15:44:01 +0000 (17:44 +0200)]
arc: Add hardware loop detection
For ARC there are registers that are not part of a required set in XML
target descriptions by default, but are almost always present on ARC
targets and are universally exposed by the ptrace interface. Hardware
loop registers being one of them.
LP_START and LP_END auxiliary registers are hardware loop start and end.
Formally, they are optional, but it is hard to find an ARC configuration
that doesn't have them. They are always present in processors that can
run GNU/Linux. GDB needs to know about those registers to implement
proper software single stepping, since they affect what instruction
will be next.
This commit adds the code to check for the existance of "lp_start" and
"lp_end" in XML target descriptions. If they exist, then the function
reports that the target supports hardware loops.
gdb/ChangeLog:
* arc-tdep.c (arc_check_for_hardware_loop): New.
* arc-tdep.h (gdbarch_tdep): New field has_hw_loops.
gdb/doc/ChangeLog:
* gdb.texinfo (Synopsys ARC): Document LP_START, LP_END and BTA.
Shahab Vahedi [Mon, 3 Aug 2020 18:41:42 +0000 (20:41 +0200)]
arc: Add inclusion of "gdbarch.h" in "arc-tdep.h"
The "arc-tdep.h" makes use of definitions in "gdbarch.h", but it
does not include it explicitly. I have piggy backed this fix
in another commit [1], but I was asked to do it separately [2].
[1] arc: Add hardware loop detection
https://sourceware.org/pipermail/gdb-patches/2020-July/170800.html
[2] Simon's remarks to "arc: Add hardware loop detection"
https://sourceware.org/pipermail/gdb-patches/2020-August/170993.html
gdb/ChangeLog:
* arc-tdep.h: Include "gdbarch.h".
Shahab Vahedi [Thu, 9 Jul 2020 15:43:13 +0000 (17:43 +0200)]
arc: Add ARCv2 XML target along with refactoring
A few changes have been made to make the register support simpler,
more flexible and extendible. The trigger for most of these changes
are the remarks [1] made earlier for v2 of this patch. The noticeable
improvements are:
- The arc XML target features are placed under gdb/features/arc
- There are two cores (based on ISA) and one auxiliary feature:
v1-core: ARC600, ARC601, ARC700
v2-core: ARC EM, ARC HS
aux: common in both
- The XML target features represent a minimalistic sane set of
registers irrespective of application (baremetal or linux).
- A concept of "feature" class has been introduced in the code.
The "feature" object is constructed from BFD and GDBARCH data.
It contains necessary information (ISA and register size) to
determine which XML target feature to use.
- A new structure (ARC_REGISTER_FEATURE) is added that allows
providing index, names, and the necessity of registers. This
simplifies the sanity checks and future extendibility.
- Documnetation has been updated to reflect ARC features better.
- Although the feature names has changed, there still exists
backward compatibility with older names through
find_obsolete_[core,aux]_names() functions.
The last two points were inspired from RiscV port.
[1]
https://sourceware.org/pipermail/gdb-patches/2020-May/168511.html
gdb/ChangeLog:
* arch/arc.h
(arc_gdbarch_features): New class to stir the selection of target XML.
(arc_create_target_description): Use FEATURES to choose XML target.
(arc_lookup_target_description): Use arc_create_target_description
to create _new_ target descriptions or return the already created
ones if the FEATURES is the same.
* arch/arc.c: Implementation of prototypes described above.
* gdb/arc-tdep.h (arc_regnum enum): Add more registers.
(arc_gdbarch_features_init): Initialize the FEATURES struct.
* arc-tdep.c (*_feature_name): Make feature names consistent.
(arc_register_feature): A new struct to hold information about
registers of a particular target/feature.
(arc_check_tdesc_feature): Check if XML provides registers in
compliance with ARC_REGISTER_FEATURE structs.
(arc_update_acc_reg_names): Add aliases for r58 and r59.
(determine_*_reg_feature_set): Which feature name to look for.
(arc_gdbarch_features_init): Given MACH and ABFD, initialize FEATURES.
(mach_type_to_arc_isa): Convert from a set of binutils machine types
to expected ISA enums to be used in arc_gdbarch_features structs.
* features/Makefile (FEATURE_XMLFILES): Add new files.
* gdb/features/arc/v1-aux.c: New file.
* gdb/features/arc/v1-aux.xml: Likewise.
* gdb/features/arc/v1-core.c: Likewise.
* gdb/features/arc/v1-core.xml: Likewise.
* gdb/features/arc/v2-aux.c: Likewise.
* gdb/features/arc/v2-aux.xml: Likewise.
* gdb/features/arc/v2-core.c: Likewise.
* gdb/features/arc/v2-core.xml: Likewise.
* NEWS (Changes since GDB 9): Announce obsolence of old feature names.
gdb/doc/ChangeLog:
* gdb.texinfo (Synopsys ARC): Update the documentation for ARC
Features.
gdb/testsuite/ChangeLog:
* gdb.arch/arc-tdesc-cpu.xml: Use new feature names.
Simon Marchi [Tue, 25 Aug 2020 15:06:43 +0000 (11:06 -0400)]
gdb/testsuite: fix gdb.threads/stepi-random-signal.exp pattern (gdb/26532)
Commit
1eb8556f5a8b ("gdb: add infrun_debug_printf macro") changed the
debug output format for `set debug infrun 1`. The test
gdb.threads/stepi-random-signal.exp uses that debug output, and was
updated, but not correctly. It results in this failure:
FAIL: gdb.threads/stepi-random-signal.exp: stepi (no random signal)
Fix it by adjusting the pattern in the test.
gdb/testsuite/ChangeLog:
PR gdb/26532
* gdb.threads/stepi-random-signal.exp: Update pattern.
Change-Id: If5fa525e9545e32a286effe6a6184358374bd37c
Simon Marchi [Tue, 25 Aug 2020 15:06:27 +0000 (11:06 -0400)]
gdb/testsuite: fix gdb.base/ui-redirect.exp pattern (gdb/26532)
Commit
1eb8556f5a8b ("gdb: add infrun_debug_printf macro") changed the
debug output format for `set debug infrun 1`. It broke test
gdb.base/ui-redirect.exp, which I missed:
FAIL: gdb.base/ui-redirect.exp: debugging: continue
Fix it by adjusting the pattern in the test to the new reality.
gdb/testsuite/ChangeLog:
PR gdb/26532
* gdb.base/ui-redirect.exp: Update pattern.
Change-Id: Ie8a8f6675e35a0cab55109b1534b44eb51baec9d
Gary Benson [Tue, 25 Aug 2020 14:53:33 +0000 (15:53 +0100)]
Mark Wielaard [Tue, 25 Aug 2020 14:33:00 +0000 (15:33 +0100)]
Fix the linker's handling of DWARF-5 line number tables.
When building with gcc with -gdwarf-5 ld tests (including ld-elf/dwarf.exp)
fail because they try to read the .debug_ranges section. But DWARF5
introduces a new .debug_rnglists section that encodes the address ranges
more efficiently. Implement reading the debug_rnglists in bfd/dwarf2.c.
Which makes all tests pass again and fixes several gcc testsuite tests
when defaulting to DWARF5.
* dwarf2.c (struct dwarf2_debug_file): Add dwarf_rnglists_buffer
and dwarf_rnglists_size fields.
(dwarf_debug_sections): Add debug_rnglists.
(dwarf_debug_section_enum): Likewise.
(read_debug_rnglists): New function.
(read_rangelist): New function to call either read_ranges or
read_rnglists. Rename original function to...
(read_ranges): ...this.
(read_rnglists): New function.
Gary Benson [Tue, 25 Aug 2020 14:25:04 +0000 (15:25 +0100)]
Disable Clang's integrated assembler for two testcases
gdb.dwarf2/dw2-dir-file-name.exp fails to build using Clang because
the generated assembly language contains .ascii directives with more
than one string literal. gdb.dwarf2/dw2-restore.exp fails to build
using Clang because it contains .func and .endfunc directives.
This commit causes Clang to invoke the system assembler to assemble
the relevant files.
gdb/testsuite/ChangeLog:
* gdb.dwarf2/dw2-dir-file-name.exp: Use system assembler
when compiling with clang.
* gdb.dwarf2/dw2-restore.exp: Likewise
Gary Benson [Tue, 25 Aug 2020 14:14:46 +0000 (15:14 +0100)]
Enable gdb.cp/ambiguous.exp with GCC and clang
gdb.cp/ambiguous.exp failed to build using clang with the following
error:
gdb compile failed, /gdbtest/src/gdb/testsuite/gdb.cp/ambiguous.cc:70:36:
warning: direct base 'A1' is inaccessible due to ambiguity:
class JVA1 -> class KV -> class A1
class JVA1 -> class A1 [-Winaccessible-base]
class JVA1 : public KV, public LV, public A1 {
^~~~~~~~~
This commit builds this testcase with -Wno-inaccessible-base when
using clang, to avoid this failure.
Furthermore, gdb.cp/ambiguous.exp has been disabled when using GCC
since 1998. This commit enables this testcase, building with
-Wno-inaccessible-base when using GCC >= 10.1, and -w otherwise.
gdb/testsuite/ChangeLog:
* gdb.cp/ambiguous.exp: Enable test when compiling with GCC.
Add additional_flags=-Wno-inaccessible-base when compiling
with GCC >= 10.1 or clang. Add additional_flags=-w when
compiling with GCC < 10.
Alan Modra [Tue, 25 Aug 2020 08:26:08 +0000 (17:56 +0930)]
PR26505, ASAN: xstormy16_elf_relax_section elf32-xstormy16.c:595
PR 26505
* elf32-xstormy16.c (xstormy16_elf_relax_section): Check
is_elf_hash_table before accessing elf fields.
Alan Modra [Tue, 25 Aug 2020 08:16:59 +0000 (17:46 +0930)]
PR26504, ASAN: parse_disassembler_options vax-dis.c:142
PR 26504
* vax-dis.c (parse_disassembler_options): Always add at least one
to entry_addr_total_slots.
Alan Modra [Tue, 25 Aug 2020 07:46:28 +0000 (17:16 +0930)]
PR26501, ASAN: tic54x_undefined_symbol tc-tic54x.c:5015
PR26501
* gas/config/tc-tic54x.c (tic54x_undefined_symbol): Properly treat
misc_symbol_hash entries without values.
Alan Modra [Tue, 25 Aug 2020 07:26:07 +0000 (16:56 +0930)]
PR26500, ASAN: tic4x_inst_make tc-tic4x.c:1247
PR 26500
* tc-tic4x.c (tic4x_inst_make): Don't die on terminating insn
with name = "".
Alan Modra [Tue, 25 Aug 2020 06:45:27 +0000 (16:15 +0930)]
PR26482, ASAN: _bfd_xcoff_sizeof_headers coff-rs6000.c:2585
PR 26482
* coff-rs6000.c (_bfd_xcoff_sizeof_headers): Ignore sections that
won't be output.
Alan Modra [Tue, 25 Aug 2020 08:53:38 +0000 (18:23 +0930)]
PR26463, ASAN: m32c_elf_relax_section elf32-m32c.c:1448
PR 26463
* elf32-m32c.c (m32c_elf_relax_section): Check is_elf_hash_table
before accessing elf fields.
Alan Modra [Tue, 25 Aug 2020 06:16:02 +0000 (15:46 +0930)]
PR26452, ASAN: som_compute_checksum som.c:4293
PR 26452
* som.c (som_compute_checksum): XOR 32-bit words in header,
not unsigned long sized words.
Alan Modra [Tue, 25 Aug 2020 06:04:10 +0000 (15:34 +0930)]
PR26441, ASAN: get_b_cc tc-cr16.c:1521
PR 26441
* config/tc-cr16.c (get_b_cc): Return NULL early if op isn't
two or three chars, and don't bother copying.
Alan Modra [Tue, 25 Aug 2020 05:17:50 +0000 (14:47 +0930)]
PR26430, ASAN: nacl_modify_segment_map elf-nacl.c:164
PR 26430
* elf-nacl.c (nacl_modify_segment_map): Correct alloc size and
amount copied for elf_segment_map defined with one element
sections array.
Alan Modra [Tue, 25 Aug 2020 04:42:49 +0000 (14:12 +0930)]
PR26426, ASAN: neon_quad tc-arm.c:15175
PR 26426
* config/tc-arm.c (do_neon_mvn, do_neon_swp): Bail out on
NS_NULL shape.
Alan Modra [Tue, 25 Aug 2020 04:35:10 +0000 (14:05 +0930)]
PR26422, ASAN: elf32_arm_final_link_relocate elf32-arm.c:10351
Always reading 32 bits in order to extract addends from instruction
fields is wrong when the field size is smaller. It also leads to
reading past the end of the section. This patch tidies that by
reading the proper field size, which allows some later refetching of
addends to disappear.
PR 26422
* elf32-arm.c (elf32_arm_final_link_relocate): Use the appropriate
bfd_get_x size function to read addends out of fields. Apply
rightshift adjustment too. Don't apply the now unnecessary
howto->size shift to branch REL addends. Don't refetch R_ARM_ABS8
and R_ARM_ABS16 addends. Don't refetch thumb branch addends.
Correct R_ARM_THM_JUMP6 addend.
Alan Modra [Tue, 25 Aug 2020 00:07:23 +0000 (09:37 +0930)]
PR26419, ASAN: mn10300_elf_relax_section elf-m10300.c:3943
PR 26419
* elf-m10300.c (mn10300_elf_relax_section): Don't attempt access
before start of section.
Alan Modra [Tue, 25 Aug 2020 05:21:21 +0000 (14:51 +0930)]
PR26410, UBSAN: symbols.c:1818
Don't memset(0,0,0).
PR 26410
* symbols.c (dollar_label_count, dollar_label_max): Make size_t.
(dollar_label_clear): Don't call memset with NULL pointer.
Alan Modra [Tue, 25 Aug 2020 00:27:58 +0000 (09:57 +0930)]
gas warning fixes
Some versions of gcc with -Werror=format-overflow complain about using
a perfectly good 7 char buffer for "r%dr%d" when the int is between 0
and 64, apparently not seeing the value range.
note: __builtin___sprintf_chk output between 5 and 24 bytes into a destination of size 7
* config/tc-arc.c (declare_register_set): Avoid false positive
format-overflow warning.
* config/tc-epiphany.c (md_assemble): Likewise.
* config/tc-mips.c (md_begin): Likewise.
* config/tc-mmix.c (mmix_md_begin): Likewise.
* config/tc-nds32.c (nds32_elf_append_relax_relocs): Avoid false
positive "may be used uninitialized" warning.
Alan Modra [Mon, 24 Aug 2020 16:29:55 +0000 (01:59 +0930)]
tic54x ld testsuite
* testsuite/ld-libs/libs.exp: Don't run on sh-pe, tic30 or tic54x.
* testsuite/ld-scripts/data.d: xfail tic4x and tic54x.
* testsuite/ld-scripts/empty-address-2a.d: xfail tic54x.
* testsuite/ld-scripts/empty-address-2b.d: Likewise.
* testsuite/ld-scripts/include-1.d: xfail tic4x and tic54x.
* testsuite/ld-scripts/provide-1.d: xfail tic54x.
* testsuite/ld-scripts/provide-2.d: Likewise.
* testsuite/ld-scripts/provide-4.d: Likewise.
Gaius Mulley [Tue, 25 Aug 2020 08:39:27 +0000 (09:39 +0100)]
gdb/modula-2: parsing of multi-subscript arrays
Fix bug PR m2/26372, GDB's inability to parse multi-dimensional
modula-2 arrays.
We previously had two rules for handling the parsing of array
sub-scripts. I have reproduced them here with the actual handler
blocks removed to make the bug clearer:
exp : exp '[' non_empty_arglist ']'
;
exp : exp '[' exp ']'
;
non_empty_arglist
: exp
;
non_empty_arglist
: non_empty_arglist ',' exp
;
This is ambiguous as the pattern "exp '[' exp" could match either of
the 'exp' rules. Currently it just so happens that the parser picks
the second 'exp' rule which means we can only handle a single array
index.
As the handler code for the first 'exp' pattern will correctly handle
and number of array indexes then lets just remove the second pattern.
gdb/ChangeLog:
PR m2/26372
* m2-exp.y (exp): Improve comment for non_empty_arglist case, add
an assert. Remove single element array indexing pattern as the
MULTI_SUBSCRIPT support will handle this case too.
gdb/testsuite/ChangeLog:
PR m2/26372
* gdb.modula2/multidim.c: New file.
* gdb.modula2/multidim.exp: New file.
Andrew Burgess [Tue, 25 Aug 2020 09:25:32 +0000 (10:25 +0100)]
Revert "Fix for Bug 26372 [Modula-2] Parsing of multi-subscript arrays"
This reverts commit
07758bdfa9e5a762f2ec0deeb51b11d6ad5fe376.
Gaius Mulley [Tue, 25 Aug 2020 09:16:56 +0000 (11:16 +0200)]
Fix for Bug 26372 [Modula-2] Parsing of multi-subscript arrays
Here is a bugfix for Pr 26372 [Modula-2] Parsing of multi-subscript arrays.
Also included is a dejagnu testcase. No extra regressions are caused on
Debian GNU/Linux Buster amd64.
gdb/ChangeLog:
2020-08-25 Gaius Mulley <gaiusmod2@gmail.com>
PR m2/26372
* m2-exp.y: Rewrite array subscript rules to support multidimension
array access. (ArgumentList) replaces non_empty_arglist.
gdb/testsuite/ChangeLog:
2020-08-25 Gaius Mulley <gaiusmod2@gmail.com>
PR m2/26372
* testsuite/gdb.modula2/multidim.exp: New file.
* testsuite/gdb.modula2/multidim.c: New file.
Simon Marchi [Tue, 25 Aug 2020 02:51:50 +0000 (22:51 -0400)]
gdb: move declaration of valprint_check_validity to valprint.h
The implementation is in valprint.c, so the declaration belongs in
valprint.h.
gdb/ChangeLog:
* value.h (valprint_check_validity): Move declaration from
here...
* valprint.h (valprint_check_validity): ... to here.
Change-Id: Ibe577d3696720099e6d79888d4ee8e3c1bf05a26
GDB Administrator [Tue, 25 Aug 2020 00:00:09 +0000 (00:00 +0000)]
Automatic date update in version.in
Simon Marchi [Mon, 24 Aug 2020 23:44:53 +0000 (19:44 -0400)]
gdb/testsuite: make runto always emit a FAIL on internal error
I noticed that when a test uses `runto_main` and a GDB internal error
happens while running to main, no error or fail is emitted. This is
because `runto_main` uses the `no-message` option of `runto`.
As a result, if a test fails to run to main and exits, no sign that
something went wrong is emitted. For example, add this always-false
assertion to compute_frame_id:
--- a/gdb/frame.c
+++ b/gdb/frame.c
@@ -545,6 +545,7 @@ static void
compute_frame_id (struct frame_info *fi)
{
gdb_assert (!fi->this_id.p);
+ gdb_assert (false);
if (frame_debug)
fprintf_unfiltered (gdb_stdlog, "{ compute_frame_id (fi=%d) ",
... and run gdb.dwarf2/dw2-align.exp. No fail or sign that something
went wrong is shown. It just appears as if the test gets skipped.
A developer introducing such a regression in this test today would
likely notice it, because we are used to diff-ing test results. So we
would see some PASSes dispappear for no good reason and look into it.
But I find it worrysome for two reasons:
1. Scripts that analyze regressions (such as the one on the buildbot)
may only look for new FAILs or new ERRORs. It would probably miss
this.
2. Imagine that we one day have a testsuite that runs cleanly (some
people might already run subsets of the testsuite and expect it to
all pass), we would just run the testsuite and check that there are
no fails. It would be easy to miss something like this.
In case of internal error, I suggest making `runto` emit a FAIL even if
`no-message` was passed. This is different from other failure modes
that might be expected (whchi rightfully cause the test to simply be
skipped). An internal error is always bad, so if it happens it should
noisily fail.
gdb/testsuite/ChangeLog:
* lib/gdb.exp (runto): Always emit fail on internal error.
Change-Id: I6e6faed4868ea821541a23042b2d01c30058b0d3
Simon Marchi [Mon, 24 Aug 2020 19:50:19 +0000 (15:50 -0400)]
gdb: add debug_prefixed_vprintf
To help ensure that all debug statements have the same format, introduce
the debug_prefixed_vprintf helper. Implement linux_nat_debug_printf_1
and infrun_debug_printf_1 with it.
I would eventually like to style the module and function name with some
color, to help them stick out, but I don't really know how to do that
yet, it can always be done later.
gdb/ChangeLog:
* debug.h: New file.
* debug.c (debug_prefixed_vprintf): New function.
* infrun.c (infrun_debug_printf_1): Use debug_prefixed_vprintf.
* linux-nat.c (linux_nat_debug_printf_1): Likewise.
Change-Id: Iccc290a2dc6b5fffcbe1c2866ed8d804ad380764
Simon Marchi [Mon, 24 Aug 2020 19:49:46 +0000 (15:49 -0400)]
gdb: add infrun_debug_printf macro
Introduce this macro to print debug statements in the infrun.c file,
same idea as what was done in
9327494e0eeb ("gdb: add
linux_nat_debug_printf macro").
Although in this case, there are places outside infrun.c that print
debug statements if debug_infrun is set. So the macro has to be
declared in the header file, so that it can be used in these other
files.
Note one special case. In stop_all_threads, I've used an explicit
if (debug_infrun)
infrun_debug_printf_1 ("stop_all_threads", "done");
for the message in the SCOPE_EXIT. Otherwise, the message appears like
this:
[infrun] operator(): done
Until we find a better solution for extracting a meaningful function
name for lambda functions, I think it's fine to handle these special
cases manually, they are quite rare.
Some tests need to be updated, because they rely on some infrun debug
statements.
gdb/ChangeLog:
* infrun.h (infrun_debug_printf_1): New function declaration.
(infrun_debug_printf): New macro.
* infrun.c (infrun_debug_printf_1): Use infrun_debug_printf
throughout.
(infrun_debug_printf): New function.
* breakpoint.c (should_be_inserted): Use infrun_debug_printf.
(handle_jit_event): Likewise.
gdb/testsuite/ChangeLog:
* gdb.base/gdb-sigterm.exp (do_test): Update expected regexp.
* gdb.threads/signal-while-stepping-over-bp-other-thread.exp:
Likewise.
* gdb.threads/stepi-random-signal.exp: Likewise.
Change-Id: I66433c8a9caa64c8525ab57c593022b9d1956d5c
Alan Modra [Mon, 24 Aug 2020 17:07:02 +0000 (02:37 +0930)]
elf_hash_table_id access
* elf-m10300.c (elf32_mn10300_hash_table): Test is_elf_hash_table
before accessing elf_hash_table_id.
* elf32-arc.c (elf_arc_hash_table): Likewise.
* elf32-arm.c (elf32_arm_hash_table): Likewise.
* elf32-avr.c (avr_link_hash_table): Likewise.
* elf32-bfin.c (bfinfdpic_hash_table): Likewise.
* elf32-cris.c (elf_cris_hash_table): Likewise.
* elf32-csky.c (csky_elf_hash_table): Likewise.
* elf32-frv.c (frvfdpic_hash_table): Likewise.
* elf32-hppa.c (hppa_link_hash_table): Likewise.
* elf32-lm32.c (lm32_elf_hash_table): Likewise.
* elf32-m32r.c (m32r_elf_hash_table): Likewise.
* elf32-m68hc1x.h (m68hc11_elf_hash_table): Likewise.
* elf32-m68k.c (elf_m68k_hash_table): Likewise.
* elf32-metag.c (metag_link_hash_table): Likewise.
* elf32-microblaze.c (elf32_mb_hash_table): Likewise.
* elf32-nds32.h (nds32_elf_hash_table): Likewise.
* elf32-or1k.c (or1k_elf_hash_table): Likewise.
* elf32-s390.c (elf_s390_hash_table): Likewise.
* elf32-sh.c (sh_elf_hash_table): Likewise.
* elf32-spu.c (spu_hash_table): Likewise.
* elf32-tilepro.c (tilepro_elf_hash_table): Likewise.
* elf32-xtensa.c (elf_xtensa_hash_table): Likewise.
* elf64-alpha.c (alpha_elf_hash_table): Likewise.
* elf64-hppa.c (hppa_link_hash_table): Likewise.
* elf64-ia64-vms.c (elf64_ia64_hash_table): Likewise.
* elf64-s390.c (elf_s390_hash_table): Likewise.
* elfnn-ia64.c (elfNN_ia64_hash_table): Likewise.
* elfnn-riscv.c (riscv_elf_hash_table): Likewise.
* elfxx-mips.c (mips_elf_hash_table): Likewise.
* elfxx-sparc.h (_bfd_sparc_elf_hash_table): Likewise.
* elfxx-tilegx.c (tilegx_elf_hash_table): Likewise.
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