When GDB uses recent version of babeltrace, such as 1.2.x, we'll see
such error emitted from babeltrace library,
(gdb) target ctf .../gdb/testsuite/gdb.trace/actions.ctf
[error] Invalid CTF stream: content size is smaller than packet headers.
[error] Stream index creation error.
[error] Open file stream error.
The problem can be reproduce out of GDB too, using babeltrace,
$ babeltrace ./fake-packet.ctf/
[error] Invalid CTF stream: content size is smaller than packet headers.
[error] Stream index creation error.
[error] Open file stream error.
Recent babeltrace library becomes more strict on CTF, and complains
about one "faked packet" GDB adds, when saving trace data in ctf
format from GDB. babeltrace 1.1.0 has a bug that it can't read trace
data smaller than a certain size (see https://bugs.lttng.org/issues/450).
We workaround it in GDB to append some meaningless data in a faked
packet to make sure trace file is large enough (see ctf.c:ctf_end).
The babeltrace issue was fixed in 1.1.1 release. However, babeltrace
recent release (since 1.1.2) starts to complain about such faked
packet. Here is a table shows that whether faked packet or no faked
packet is "supported" by various babeltrace releases,
faked packet no faked packet
1.1.0 Yes No
1.1.1 Yes Yes
1.1.2 No Yes
1.2.0 No Yes
We decide to get rid of this workaround in GDB, and people can build GDB
with libbabeltrace >= 1.1.1. In this way, both configure and ctf.c is
simpler.
Run gdb.trace/* tests in the following combinations:
wo/ this pattch 1.1.0
w/ this patch 1.1.1
w/ this patch 1.1.2
w/ this patch 1.2.0
No test results change.
gdb:
2014-08-22 Yao Qi <yao@codesourcery.com>
* ctf.c (CTF_FILE_MIN_SIZE): Remove.
(ctf_end): Remove code.
cie->output_sec is used to when merging CIEs to ensure that only CIEs
from the same output section are merged. I noticed an assignment to
this field in _bfd_elf_parse_eh_frame, and thought "That's wrong,
output_section isn't set properly when _bfd_elf_parse_eh_frame is
called from gc-sections code". It turns out that this assignment is
premature, and in fact a dead store. find_merged_cie overwrites with
the correct value before the field is ever used. On looking a little
more it becomes apparent that cie->cie_inf.u.cie.u.sec->output_section
holds the same value, so cie->output_sec is redundant.
* elf-eh-frame.c (struct cie): Delete "output_sec" field.
(cie_eq, cie_compute_hash): Use output_section from cie_inf instead.
I noticed recently that .eh_frame FDEs generated by the linker for
call stubs and .glink weren't being indexed in .eh_frame_hdr, due to
bfd_elf_discard_info being run before the linker generated .eh_frame
sections were available for parsing. This patch moves code around in
elf64-ppc.c and ppc64elf.em to avoid that problem.
Another problem fixed here is that --gc-sections parses .eh_frame
early, and the existing machinery allows only one go at parsing the
.eh_frame sections. That resulted in the linker generated .eh_frame
CIEs not being merged and no .eh_frame_hdr index entries for those
FDEs. It turns out that all the info from parsing .eh_frame is
attached to the section, so order of parsing isn't important, and
after parsing sec_info_type being set will prevent a section being
parsed again. At least, when parsing doesn't hit an error. So there
isn't really any need for "parsed_eh_frame". "merge_cies" is also
redundant, which means _bfd_elf_{begin,end}_eh_frame_parsing can also
disappear.
bfd/
* elf-bfd.h (struct eh_frame_hdr_info): Delete merge_cies and
parsed_eh_frames.
(_bfd_elf_begin_eh_frame_parsing): Delete.
(_bfd_elf_end_eh_frame_parsing): Delete.
* elf-eh-frame.c (_bfd_elf_begin_eh_frame_parsing): Delete.
(_bfd_elf_end_eh_frame_parsing): Delete.
(_bfd_elf_parse_eh_frame): Don't test parsed_eh_frame. Test
!info->relocatable in place of merge_cies.
* elflink.c (bfd_elf_gc_sections, bfd_elf_discard_info): Adjust.
* elf64-ppc.c (glink_eh_frame_cie): Pad to multiple of 8.
(ppc64_elf_size_stubs): Likewise pad stub FDE.
(ppc64_elf_build_stubs): Move code setting glink .eh_frame to..
(ppc64_elf_size_stubs): ..here and..
(ppc64_elf_finish_dynamic_sections): ..here.
ld/
* emultempl/ppc64elf.em (gld${EMULATION_NAME}_after_allocation): Call
bfd_elf_discard_info after generating glink .eh_frame. Delete
redundant test on ppc64_elf_setup_section_lists status.
Program received signal SIGABRT, Aborted.
[...]
(gdb) gcore foobar
Couldn't get registers: No such process.
(gdb) info threads
[...]
(gdb) gcore foobar
Saved corefile foobar
(gdb)
gcore tries to access the exited thread:
[Thread 0x7ffff7fce700 (LWP 6895) exited]
ptrace(PTRACE_GETREGS, 6895, 0, 0x7fff18167dd0) = -1 ESRCH (No such process)
Without the TRY_CATCH protection testsuite FAILs for:
gcore .../gdb/testsuite/gdb.threads/gcore-thread0.test
Cannot find new threads: debugger service failed
(gdb) FAIL: gdb.threads/gcore-thread.exp: save a zeroed-threads corefile
+
core .../gdb/testsuite/gdb.threads/gcore-thread0.test
".../gdb/testsuite/gdb.threads/gcore-thread0.test" is not a core dump: File format not recognized
(gdb) FAIL: gdb.threads/gcore-thread.exp: core0file: re-load generated corefile (bad file format)
Maybe the TRY_CATCH could be more inside update_thread_list().
Similar update_thread_list() call is IMO missing in procfs_make_note_section()
but I do not have where to verify that change.
gdb/ChangeLog
2014-08-21 Jan Kratochvil <jan.kratochvil@redhat.com>
* linux-tdep.c (linux_corefile_thread_callback): Ignore THREAD_EXITED.
(linux_make_corefile_notes): call update_thread_list, protected against
exceptions.
gdb/testsuite/ChangeLog
2014-08-21 Jan Kratochvil <jan.kratochvil@redhat.com>
* gdb.threads/gcore-stale-thread.c: New file.
* gdb.threads/gcore-stale-thread.exp: New file.
This TODO has been stale for over 2 years. In bd5635a1 (1991), we
already see the comment, when we only had a bare attach_command:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/*
* TODO:
* Should save/restore the tty state since it might be that the
* program to be debugged was started on this tty and it wants
* the tty in some state other than what we want. If it's running
* on another terminal or without a terminal, then saving and
* restoring the tty state is a harmless no-op.
* This only needs to be done if we are attaching to a process.
*/
/*
* attach_command --
* takes a program started up outside of gdb and ``attaches'' to it.
* This stops it cold in its tracks and allows us to start tracing it.
* For this to work, we must be able to send the process a
* signal and we must have the same effective uid as the program.
*/
void
attach_command (args, from_tty)
char *args;
int from_tty;
{
target_attach (args, from_tty);
}
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Later in b5a3d2aa (1992) target_terminal_init, etc. calls are added to
attach_command, and in 7e97eb28 (1992) we see:
+ /* If we attached to the process, we might or might not be sharing
+ a terminal. Avoid printing error msg if we are unable to set our
+ terminal's process group to his process group ID. */
+ if (!attach_flag) {
+ OOPSY ("ioctl TIOCSPGRP");
Clearly the TODO has been stale for a long while.
I considered preserving the text elsewhere, but then thought the
comments in inflow.c already have all the necessary info.
gdb/ChangeLog:
* infcmd.c (attach_command): Remove comment.
The 48-bit LI instruction encoding has been removed from the microMIPS
ISA and no implementation ever made that included it.
* micromips-opc.c (micromips_opcodes): Remove #ifdef-ed out
48-bit "li" encoding.
Checking whether the gcore command is included in the GDB build as
proxy for checking whether core dumping is supported by the target is
useless, as gcore.o has been in COMMON_OBS since git 9b4eba8e:
2009-10-26 Michael Snyder <msnyder@vmware.com>
Hui Zhu <teawater@gmail.com>
* Makefile.in (SFILES): Add gcore.c.
(COMMON_OBS): Add gcore.o.
* config/alpha/alpha-linux.mh (NATDEPFILES): Delete gcore.o.
* config/alpha/fbsd.mh (NATDEPFILES): Ditto.
...
IOW, the command is always included in the build.
Instead, nowadays, tests bail out if actually trying to generate a
core fails with an indication the target doesn't support it. See
gdb_gcore_cmd and callers.
Tested on x86_64 Fedora 20.
gdb/testsuite/ChangeLog:
* gdb.base/gcore-buffer-overflow.exp: Remove "help gcore" test.
* gdb.base/gcore-relro-pie.exp: Likewise.
* gdb.base/gcore-relro.exp: Likewise.
* gdb.base/gcore.exp: Likewise.
* gdb.base/print-symbol-loading.exp: Likewise.
* gdb.threads/gcore-thread.exp: Likewise.
* lib/gdb.exp (gdb_gcore_cmd): Don't expect "Undefined command".
2014-08-21 Tony Wang <tony.wang@arm.com>
* elf32-arm.c (elf32_arm_final_link_relocate): Implement
the veneer routine for R_ARM_THM_JUMP19.
(arm_type_of_stub): Add conditional clause for R_ARM_THM_JUMP19
(elf32_arm_size_stub): Ditto.
ld/testsuite/ChangeLog
2014-08-21 Tony Wang <tony.wang@arm.com>
* ld-arm/jump-reloc-veneers-cond.s: New test.
* ld-arm/farcall-cond-thumb-arm.s: Ditto.
* ld-arm/jump-reloc-veneers-cond-short.d: Expected output
for target without a veneer generation.
* ld-arm/jump-reloc-veneers-cond-long.d: Expected output
for target with a veneer generation.
* ld-arm/farcall-cond-thumb-arm.d: Expected output for
inter working veneer generation.
* ld-arm/arm-elf.exp: Add tests for conditional branch veneer.
Recent gdb code refactor changes LONGEST from a macro to a typedef,
thus the use of it in aarch64-linux-nat.c is no longer valid.
2014-08-21 Bin Cheng <bin.cheng@arm.com>
* aarch64-linux-nat.c (dr_changed_t): Change the type from
unsigned LONGEST to ULONGEST.
This integrates Jan Kratochvil's nice race reproducer from PR
testsuite/12649 into the testsuite infrustructure directly.
With this, one only has to do either 'make check-read1' or 'make check
READ1="1"' to preload the read1.so library into expect.
Currently only enabled for glibc/GNU systems, and if
build==host==target.
gdb/testsuite/ChangeLog:
* Makefile.in (EXTRA_RULES, CC): New variables, get from
configure.
(EXPECT): Handle READ1 being set.
(all): Depend on EXTRA_RULES.
(check-read1, expect-read1, read1.so, read1): New rules.
* README (Testsuite Parameters): Document the READ1 make variable.
(Race detection): New section.
* configure: Regenerate.
* configure.ac: If build==host==target, and running under a
GNU/glibc system, add read1 to the extra Makefile rules.
(EXTRA_RULES): AC_SUBST it.
* lib/read1.c: New file.
gdb/ChangeLog:
* Makefile.in (check-read1): New rule.
bfd/
PR ld/17277
* elf32-arm.c (elf32_arm_check_relocs): Increment P->pc_count for
all reloc types with pc_relative set in the howto, not just for
R_ARM_REL32 and R_ARM_REL32_NOI.
(allocate_dynrelocs_for_symbol): Update comment.
(elf32_arm_gc_sweep_hook): For all reloc types with pc_relative
set in the howto, set call_reloc_p and may_need_local_target_p but
not may_become_dynamic_p; not only for R_ARM_REL32 and R_ARM_REL32_NOI.
(elf32_arm_check_relocs): Likewise.
ld/testsuite/
PR ld/17277
* ld-arm/pcrel-shared.s: New file.
* ld-arm/pcrel-shared.rd: New file.
* ld-arm/arm-elf.exp (armelftests_common): Add it.
At the moment it is possible to configure binutils for these triples
but the resulting linker defaults to little endian with huge numbers
of testsuite failures, which on the face of it does not appear to make
much sense.
This patch makes the behaviour similar to armeb-elf and the testsuite
is clean.
bfd/ChangeLog:
2014-08-20 Will Newton <will.newton@linaro.org>
* config.bfd: Default armeb-*-eabi* to big endian.
ld/ChangeLog:
2014-08-20 Will Newton <will.newton@linaro.org>
* configure.tgt: Default armeb-*-eabi* to big endian.
addresses outside of the 32-bit range before memory exhaustion. This
results in a higher entropy implementation of ASLR when used with the
DYNAMIC_BASE flag.
* include/coff/pe.h: Add HIGH_ENTROPY_VA flag
* ld/emultempl/pep.em: Add --high-entropy-va switch
* ld/ld.texinfo: Document the --high-entropy-va switch
Consider an array described in the debugging information as being
a typedef of an array type for which there is a DW_AT_data_location
attribute. Trying to print the value of that array currently yields
incorrect element values. For instance:
(gdb) print foo.three_tdef
$1 = (6293760, 0, 6293772)
The problem occurs because we check for the data_location attribute
only on the typedef type, whereas we should be checking for the
typedef's target type. As a result, GDB erroneously thinks that
there is no data_location, and therefore starts reading the array's
content from the address of the descriptor instead of the data_location
address.
gdb/ChangeLog:
* value.c (value_from_contents_and_address): Strip resolved_type's
typedef layers before checking its TYPE_DATA_LOCATION.
gdb/testsuite/ChangeLog:
* gdb.dwarf2/data-loc.exp: Add additional tests exercising
the handling of variables declared as a typedef to an array
which a DW_AT_data_location attribute.
We would like to wrap examples, output or code snippet in comments with
blank lines, and move */ to a new line if the comment is ended with the
example.
gdb:
2014-08-20 Yao Qi <yao@codesourcery.com>
* amd64-tdep.c (amd64_classify): Add a blank line after the
example. Move "*/" to a new line.
* arm-tdep.c (arm_vfp_cprc_sub_candidate): Likewise.
* arm-wince-tdep.c (arm_pe_skip_trampoline_code): Likewise.
* dwarf2read.c (psymtab_include_file_name): Likewise.
This fixes PR symtab/14604, PR symtab/14605, and Jan's test at
https://sourceware.org/ml/gdb-patches/2014-07/msg00158.html, in a tree
with bddbbed reverted:
2014-07-22 Pedro Alves <palves@redhat.com>
* value.c (allocate_optimized_out_value): Don't mark value as
non-lazy.
The PRs are about variables described by the DWARF as being split over
multiple registers using DWARF piece information, but some of those
registers being marked as optimised out (not saved) by a later frame.
GDB currently incorrectly mishandles these partially-optimized-out
values.
Even though we can usually tell from the debug info whether a local or
global is optimized out, handling the case of a local living in a
register that was not saved in a frame requires fetching the variable.
GDB also needs to fetch a value to tell whether parts of it are
"<unavailable>". Given this, it's not worth it to try to avoid
fetching lazy optimized-out values based on debug info alone.
So this patch makes GDB track which chunks of a value's contents are
optimized out like it tracks <unavailable> contents. That is, it
makes value->optimized_out be a bit range vector instead of a boolean,
and removes the struct lval_funcs check_validity and check_any_valid
hooks.
Unlike Andrew's series which this is based on (at
https://sourceware.org/ml/gdb-patches/2013-08/msg00300.html, note some
pieces have gone in since), this doesn't merge optimized out and
unavailable contents validity/availability behind a single interface,
nor does it merge the bit range vectors themselves (at least yet).
While it may be desirable to have a single entry point that returns
existence of contents irrespective of what may make them
invalid/unavailable, several places want to treat optimized out /
unavailable / etc. differently, so each spot that potentially could
use it will need to be careful considered on case-by-case basis, and
best done as a separate change.
This fixes Jan's test, because value_available_contents_eq wasn't
considering optimized out value contents. It does now, and because of
that it's been renamed to value_contents_eq.
A new intro comment is added to value.h describing "<optimized out>",
"<not saved>" and "<unavailable>" values.
gdb/
PR symtab/14604
PR symtab/14605
* ada-lang.c (coerce_unspec_val_to_type): Use
value_contents_copy_raw.
* ada-valprint.c (val_print_packed_array_elements): Adjust.
* c-valprint.c (c_val_print): Use value_bits_any_optimized_out.
* cp-valprint.c (cp_print_value_fields): Let the common printing
code handle optimized out values.
(cp_print_value_fields_rtti): Use value_bits_any_optimized_out.
* d-valprint.c (dynamic_array_type): Use
value_bits_any_optimized_out.
* dwarf2loc.c (entry_data_value_funcs): Remove check_validity and
check_any_valid fields.
(check_pieced_value_bits): Delete and inline ...
(check_pieced_synthetic_pointer): ... here.
(check_pieced_value_validity): Delete.
(check_pieced_value_invalid): Delete.
(pieced_value_funcs): Remove check_validity and check_any_valid
fields.
(read_pieced_value): Use mark_value_bits_optimized_out.
(write_pieced_value): Switch to use
mark_value_bytes_optimized_out.
(dwarf2_evaluate_loc_desc_full): Copy the value contents instead
of assuming the whole value is optimized out.
* findvar.c (read_frame_register_value): Remove special handling
of optimized out registers.
(value_from_register): Use mark_value_bytes_optimized_out.
* frame-unwind.c (frame_unwind_got_optimized): Use
mark_value_bytes_optimized_out.
* jv-valprint.c (java_value_print): Adjust.
(java_print_value_fields): Let the common printing code handle
optimized out values.
* mips-tdep.c (mips_print_register): Remove special handling of
optimized out registers.
* opencl-lang.c (lval_func_check_validity): Delete.
(lval_func_check_any_valid): Delete.
(opencl_value_funcs): Remove check_validity and check_any_valid
fields.
* p-valprint.c (pascal_object_print_value_fields): Let the common
printing code handle optimized out values.
* stack.c (read_frame_arg): Remove special handling of optimized
out values. Fetch both VAL and ENTRYVAL before comparing
contents. Adjust to value_available_contents_eq rename.
* valprint.c (valprint_check_validity)
(val_print_scalar_formatted): Use value_bits_any_optimized_out.
(val_print_array_elements): Adjust.
* value.c (struct value) <optimized_out>: Now a VEC(range_s).
(value_bits_any_optimized_out): New function.
(value_entirely_covered_by_range_vector): New function, factored
out from value_entirely_unavailable.
(value_entirely_unavailable): Reimplement.
(value_entirely_optimized_out): New function.
(insert_into_bit_range_vector): New function, factored out from
mark_value_bits_unavailable.
(mark_value_bits_unavailable): Reimplement.
(struct ranges_and_idx): New struct.
(find_first_range_overlap_and_match): New function, factored out
from value_available_contents_bits_eq.
(value_available_contents_bits_eq): Rename to ...
(value_contents_bits_eq): ... this. Check both unavailable
contents and optimized out contents.
(value_available_contents_eq): Rename to ...
(value_contents_eq): ... this.
(allocate_value_lazy): Remove reference to the old optimized_out
boolean.
(allocate_optimized_out_value): Use
mark_value_bytes_optimized_out.
(require_not_optimized_out): Adjust to check whether the
optimized_out vec is empty.
(ranges_copy_adjusted): New function, factored out from
value_contents_copy_raw.
(value_contents_copy_raw): Also copy the optimized out ranges.
Assert the destination ranges aren't optimized out.
(value_contents_copy): Update comment, remove call to
require_not_optimized_out.
(value_contents_equal): Adjust to check whether the optimized_out
vec is empty.
(set_value_optimized_out, value_optimized_out_const): Delete.
(mark_value_bytes_optimized_out, mark_value_bits_optimized_out):
New functions.
(value_entirely_optimized_out, value_bits_valid): Delete.
(value_copy): Take a VEC copy of the 'optimized_out' field.
(value_primitive_field): Remove special handling of optimized out.
(value_fetch_lazy): Assert that lazy values have no unavailable
regions. Use value_bits_any_optimized_out. Remove some special
handling for optimized out values.
* value.h: Add intro comment about <optimized out> and
<unavailable>.
(struct lval_funcs): Remove check_validity and check_any_valid
fields.
(set_value_optimized_out, value_optimized_out_const): Remove.
(mark_value_bytes_optimized_out, mark_value_bits_optimized_out):
New declarations.
(value_bits_any_optimized_out): New declaration.
(value_bits_valid): Delete declaration.
(value_available_contents_eq): Rename to ...
(value_contents_eq): ... this, and extend comments.
gdb/testsuite/
PR symtab/14604
PR symtab/14605
* gdb.dwarf2/dw2-op-out-param.exp: Remove kfail branches and use
gdb_test.
echo 'void f(char *s){}main(){f((char *)1);}'|gcc -g -x c -;../gdb ./a.out -ex 'b f' -ex r
====ERROR: AddressSanitizer: heap-buffer-overflow on address 0x6020000aaccf at pc 0x96eea7 bp 0x7fff75bdbc90 sp 0x7fff75bdbc80
READ of size 1 at 0x6020000aaccf thread T0
#0 0x96eea6 in extract_unsigned_integer .../gdb/findvar.c:108
#1 0x9df02b in val_print_string .../gdb/valprint.c:2513
[...]
0x6020000aaccf is located 1 bytes to the left of 8-byte region [0x6020000aacd0,0x6020000aacd8)
allocated by thread T0 here:
#0 0x7f45fad26b97 in malloc (/lib64/libasan.so.1+0x57b97)
#1 0xdb3409 in xmalloc common/common-utils.c:45
#2 0x9d8cf9 in read_string .../gdb/valprint.c:1845
#3 0x9defca in val_print_string .../gdb/valprint.c:2502
[..]
====ABORTING
gdb/
2014-08-18 Jan Kratochvil <jan.kratochvil@redhat.com>
Fix -fsanitize=address on unreadable inferior strings.
* valprint.c (val_print_string): Fix access before BUFFER.
This comment is no longer true for watchpoints since commit 31e77af2
(PR breakpoints/7143 - Watchpoint does not trigger when first set).
gdb/testsuite/
* gdb.base/watchpoint-hw-hit-once.c (main): Update comment.
I thought that this home made implementation of a vector could be
replaced by the more standard VEC. The implementation seems to predate
the introduction of vec.h, so that would explain why it exists.
Ran make check before and after, no new failures.
gdb/ChangeLog:
2014-08-19 Simon Marchi <simon.marchi@ericsson.com>
* target.c (target_struct_size): Remove.
(target_struct_allocsize): Remove.
(DEFAULT_ALLOCSIZE): Remove.
(target_ops_p): New typedef.
(DEF_VEC_P (target_ops_p)): New vector type.
(target_structs): Change type to VEC (target_ops_p).
(add_target_with_completer): Replace "push" code by VEC_safe_push.
(find_default_run_target): Rewrite for loop following changes to
target_structs.
Before FreeBSD-8 there was/is no arm support from the OS side.
FreeBSD-9.x added ARM support but only for the OABI.
From FreeBSD-10 upwards there is EABI support.
* Makefile.am: Add FreeBSD ARM support.
* Mafefile.in: Regenerate.
* configure.tgt: Add FreeBSD ARM support.
* config/te-armfbsdeabi.h: New file.
* config/te-armfbsdvfp.h: Likewise.
readability and also fixes some minor issues.
S/390: Split disassembler routine into smaller functions
S/390: Fix disassembler's treatment of signed/unsigned operands
S/390: Fix off-by-one error in disassembler initialization
S/390: Simplify opcode search loop in disassembler
S/390: Drop function pointer dereferences in disassembler
S/390: Various minor simplifications in disassembler
The given type is expected to always be a TYPE_CODE_PTR, for which
resolve_dynamic_type does nothing. So this patch removes this call.
gdb/ChangeLog:
* value.c (value_from_pointer): Remove use of resolve_dynamic_type.
Adjust code accordingly. Adjust function description comment.
In gdb.base/watchpoint-hw-hit-once.exp, test scans source and set
breakpoint on the line having "break-at-exit",
gdb_breakpoint [gdb_get_line_number "break-at-exit"]
However, in watchpoint-hw-hit-once.c, there are two lines having
this key word:
dummy = 1; /* Stub to catch break-at-exit after WATCHEE has been hit. */
dummy = 2; /* break-at-exit */
so the test sets breakpoint on the first one, while I think it is
expected to set breakpoint on the second one, as far as I can tell
from the comments in watchpoint-hw-hit-once.c:
/* Stub lines are present as no breakpoints/watchpoint gets hit if current PC
already stays on the line PC while entering "step"/"continue". */
This patch is to change the source matching pattern so that test
can correctly set breakpoint on the right line. This patch fixes
a fail we found on arm-none-eabi target.
(gdb) PASS: gdb.base/watchpoint-hw-hit-once.exp: continue
continue^M
Continuing.^M
^M
*** EXIT code 0^M
[Inferior 1 (Remote target) exited normally]^M
(gdb) FAIL: gdb.base/watchpoint-hw-hit-once.exp: continue to break-at-exit (the program exited)
Run it again on x86_64-linux, no result changes.
gdb/testsuite:
2014-08-19 Yao Qi <yao@codesourcery.com>
* gdb.base/watchpoint-hw-hit-once.exp: Set breakpoint on the
right line.
Hi,
When we pass "-mfloat-abi=hard" flag in the GDB testing, we see the
following fails,
FAIL: gdb.base/callfuncs.exp: p t_float_complex_values(fc1, fc2)
FAIL: gdb.base/callfuncs.exp: p t_float_complex_many_args(fc1, fc2, fc3, fc4, fc1, fc2, fc3, fc4, fc1, fc2, fc3, fc4, fc1, fc2, fc3, fc4)
FAIL: gdb.base/callfuncs.exp: p t_double_complex_values(dc1, dc2)
FAIL: gdb.base/callfuncs.exp: p t_double_complex_many_args(dc1, dc2, dc3, dc4, dc1, dc2, dc3, dc4, dc1, dc2, dc3, dc4, dc1, dc2, dc3, dc4)
FAIL: gdb.base/callfuncs.exp: p t_long_double_complex_values(ldc1, ldc2)
FAIL: gdb.base/callfuncs.exp: p t_long_double_complex_many_args(ldc1, ldc2, ldc3, ldc4, ldc1, ldc2, ldc3, ldc4, ldc1, ldc2, ldc3, ldc4, ldc1, ldc2, ldc3, ldc4)
FAIL: gdb.base/callfuncs.exp: call inferior func with struct - returns float _Complex
FAIL: gdb.base/callfuncs.exp: call inferior func with struct - returns double _Complex
The hard-VFP ABI was supported by GDB overal, done by this patch
https://sourceware.org/ml/gdb-patches/2009-07/msg00686.html but
"vectors and complex types are not currently supported", mentioned in
the patch. As a result, these tests fail.
This patch is to support _Complex types in hard-VFP abi. As specified
in "7.1.1, Procedure Call Standard for the ARM Arch", the layout of
_Complex types is a struct, which is identical to the layout on amd64,
so I copy Mark's comments to amd64 support.
Regression tested on arm-none-eabi target. OK to apply?
gdb:
2014-08-19 Yao Qi <yao@codesourcery.com>
* arm-tdep.c (arm_vfp_cprc_sub_candidate): Handle _Complex
types.
Directories that don't use libtool need to add -ldl (on most *nix
hosts) to provide dlopen for libbfd.
config/
* plugins.m4 (AC_PLUGINS): If plugins are enabled, add -ldl to
LIBS via AC_SEARCH_LIBS.
gdb/
* acinclude.m4 (GDB_AC_CHECK_BFD): Don't add -ldl.
* config.in: Regenerate.
sim/ppc/
* configure.ac: Invoke AC_PLUGINS.
* config.in: Regenerate.
and regen lots of configure files.
* msp430-sim.c: Move static hardware multiply support variables
from here...
* msp430-sim.h (msp430_cpu_state): ... into here ...
* msp430-sim.c (get_op, put_op): ... and update references to use
the msp430_cpu_state structure.
This introduces common-debug.h. This holds the functions debug_printf
and debug_vprintf, two functions that the common code can use to print
debugging messages. Clients of the common code are expected to
implement debug_vprintf; a debug_vprintf function is written from
scratch for GDB, and gdbserver's existing debug_printf is repurposed
as debug_vprintf.
common/agent.c is changed to use debug_vprintf rather than
defining the macro DEBUG_AGENT depending on GDBSERVER.
nat/i386-dregs.c is changed to use the externally-implemented
debug_printf, rather than defining it itself.
gdb/ChangeLog:
* common/common-debug.h: New file.
* common/common-debug.c: Likewise.
* debug.c: Likewise.
* Makefile.in (SFILES): Add common/common-debug.c.
(HFILES_NO_SRCDIR): Add common/common-debug.h.
(COMMON_OBS): Add common-debug.o and debug.o.
(common-debug.o): New rule.
* common/common-defs.h: Include common-debug.h.
* common/agent.c (debug_agent_printf): New function.
(DEBUG_AGENT): Redefine.
* nat/i386-dregs.c (debug_printf): Undefine.
gdb/gdbserver/ChangeLog:
* Makefile.in (SFILES): Add common/common-debug.c.
(OBS): Add common-debug.o.
(common-debug.o): New rule.
* debug.h (debug_printf): Don't declare.
* debug.c (debug_printf): Renamed and rewritten as...
(debug_vprintf): New function.
This commit moves the inclusion of print-utils.h to common-defs.h
and removes all other inclusions.
gdb/ChangeLog:
* common/common-defs.h: Include print-utils.h.
* utils.h: Do not include print-utils.h.
gdb/gdbserver/ChangeLog:
* utils.h: Do not include print-utils.h.
This introduces common-types.h. This file defines various standard
types used by gdb and gdbserver.
Currently these types are conditionally defined based on GDBSERVER.
The long term goal is to remove all such tests; however, this is
difficult as currently gdb uses definitions from BFD. In the meantime
this is still a step in the right direction.
gdb/ChangeLog:
* common/common-types.h: New file.
* Makefile.in (HFILES_NO_SRCDIR): Add common/common-types.h.
* common/common-defs.h: Include common-types.h.
* defs.h (gdb_byte, CORE_ADDR, CORE_ADDR_MAX, LONGEST)
(ULONGEST): Remove.
gdb/gdbserver/ChangeLog:
* server.h: Add static assertion.
(gdb_byte, CORE_ADDR, LONGEST, ULONGEST): Remove.
This introduces common/errors.h. This holds some error- and warning-
related declarations that can be used by the code in common, nat and
target. Some of the declared functions must be provided by the client
as documented by the header file comments.
gdb/ChangeLog:
* common/errors.h: New file.
* common/errors.c: Likewise.
* Makefile.in (SFILES): Add common/errors.c.
(HFILES_NO_SRCDIR): Add common/errors.h.
(COMMON_OBS): Add errors.o.
(errors.o): New rule.
* common/common-defs.h: Include errors.h.
* utils.h (perror_with_name, error, verror, warning, vwarning):
Don't declare.
* common/common-utils.h: (malloc_failure, internal_error):
Likewise.
gdb/gdbserver/ChangeLog:
* Makefile.in (SFILES): Add common/errors.c.
(OBS): Add errors.o.
(IPA_OBS): Add errors-ipa.o.
(errors.o): New rule.
(errors-ipa.o): Likewise.
* utils.h (perror_with_name, error, warning): Don't declare.
* utils.c (warning): Renamed and rewritten as...
(vwarning): New function.
(error): Renamed and rewritten as...
(verror): New function.
(internal_error): Renamed and rewritten as...
(internal_verror): New function.
While working on internal_vproblem I noticed that the error/warning
message is suppressed if problem->should_quit is internal_problem_yes
or internal_problem_no. This behaviour seems wrong. This commit
modifies internal_vproblem to emit the message regardless of the
user's settings.
gdb/
2014-08-19 Gary Benson <gbenson@redhat.com>
* utils.c (internal_vproblem): Always print the message.
The testcase generates an assembly file where a second DW_AT_upper_bound
attribute gets generated in the array range. This was definitely
unintentional, and I only noticed this after pushing the testcase,
when dumping one more time the DWARF data using readelf.
This patch fixes it.
gdb/testsuite/ChangeLog:
* gdb.dwarf2/data-loc.exp: Remove second DW_AT_upper bound
attribute in array range.
than 4. This affects DWARF debug info generation in particular.
* config/tc-rl78.c (md_apply_fix): Correct handling of small sized
RELOC_RL78_DIFF fixups.
This testcase allows us to test the proper processing of both
DW_AT_data_location and DW_OP_push_object_address using a hand-crafted
testcase duplicating how we expect the Ada compiler to represent
unbounded arrays.
gdb/testsuite/ChangeLog:
* gdb.dwarf2/data-loc.c, gdb.dwarf2/data-loc.exp: New files.
Consider an Ada array type where the DWARF debugging info for
at least one of the bounds involves an expression containing
a DW_OP_push_object_address operation. Trying to "ptype" that
type currently yields:
(gdb) ptype foo.array_type
type = array (Location address is not set.
This patch improves ada-typeprint by adding handling of the situation
where an array range type has dynamic bounds. In that case, it prints
the array bounds using Ada's typical syntax for unbounded ranges "<>":
(gdb) ptype array_type
type = array (<>) of integer
gdb/ChangeLog:
* ada-typeprint.c (type_is_full_subrange_of_target_type):
Return 0 if TYPE is dynamic.
(print_range): Add handling of dynamic ranges.
gdb/ChangeLog:
* gdbtypes.h (struct main_type): Add field "data_location".
(TYPE_DATA_LOCATION, TYPE_DATA_LOCATION_BATON)
(TYPE_DATA_LOCATION_ADDR, TYPE_DATA_LOCATION_KIND): New macros.
* gdbtypes.c (is_dynamic_type): Return 1 if the type has
a dynamic data location.
(resolve_dynamic_type): Add DW_AT_data_location handling.
(copy_recursive, copy_type): Copy the data_location information
when present.
* dwarf2read.c (set_die_type): Add DW_AT_data_location handling.
* value.c (value_from_contents_and_address): Add
DW_AT_data_location handling.
