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detach_fork.
* inf-ptrace.c (inf_ptrace_follow_fork): Likewise.
* inf-ttrace.c (inf_ttrace_follow_fork): Likewise.
* inferior.h (detach_fork): Remove.
* infrun.c (detach_fork): Adjust comment and make it
static.
(follow_fork): Pass detach_fork parameter to
target_follow_fork.
* linux-nat.c (linux_child_follow_fork): New parameter
detach_fork.
* target.c (target_follow_fork): New parameter detach_fork.
Pass detach_fork as parameter and print its value.
* target.h (struct target_ops) <to_follow_fork>: New int
parameter.
(target_follow_fork): New parameter detach_fork.
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The field "bfd" no longer exists in struct target_section.
Use the_bfd_section->owner instead.
gdb/ChangeLog:
* solib-ia64-hpux.c (ia64_hpux_relocate_section_addresses):
Replace sec->bfd by sec->the_bfd_section->owner.
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* linux-tdep.c (linux_is_uclinux): New function. Code moved
from linux_has_shared_address_space.
(linux_has_shared_address_space): Call linux_is_uclinux.
* linux-tdep.h (linux_is_uclinux): Declare.
* m68klinux-tdep.c (m68k_linux_get_sigtramp_info): Call
linux_is_uclinux.
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* config/djgpp/fnchange.lst: Remove entry of
i386-interix-nat.c and i386-interix-tdep.c.
* configure.ac: Remove '*-*-interix*'.
* configure: Re-generated.
* defs.h (enum gdb_osabi): Remove GDB_OSABI_INTERIX.
* i386-cygwin-tdep.c (i386_cygwin_osabi_sniffer): Remove
obsolete comments.
* osabi.c (gdb_osabi_names): Remove "Interix".
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* arch-utils.c: Fix typo in the comment to gdbarch_update_p.
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I'm seeing trace-buffer-size.exp failing (with gdbserver):
(gdb) PASS: gdb.trace/trace-buffer-size.exp: tstatus check 2
show trace-buffer-size 4
Requested size of trace buffer is 4.
(gdb) PASS: gdb.trace/trace-buffer-size.exp: show trace buffer size
set trace-buffer-size -1
memory clobbered past end of allocated block
Remote connection closed
(gdb) FAIL: gdb.trace/trace-buffer-size.exp: set trace buffer size 2
set trace-buffer-size unlimited
(gdb) PASS: gdb.trace/trace-buffer-size.exp: set trace-buffer-size unlimited
That "memory clobbered past end of allocated block" is mcheck triggering.
Valgrind shows:
==23624== Invalid write of size 1
==23624== at 0x418DD8: clear_trace_buffer (tracepoint.c:1443)
==23624== by 0x418F3A: init_trace_buffer (tracepoint.c:1497)
==23624== by 0x41D95B: cmd_bigqtbuffer_size (tracepoint.c:4061)
==23624== by 0x41DEEC: handle_tracepoint_general_set (tracepoint.c:4193)
clear_trace_buffer does:
static void
clear_trace_buffer (void)
{
trace_buffer_start = trace_buffer_lo;
trace_buffer_free = trace_buffer_lo;
trace_buffer_end_free = trace_buffer_hi;
trace_buffer_wrap = trace_buffer_hi;
/* A traceframe with zeroed fields marks the end of trace data. */
((struct traceframe *) trace_buffer_free)->tpnum = 0;
((struct traceframe *) trace_buffer_free)->data_size = 0;
traceframe_read_count = traceframe_write_count = 0;
traceframes_created = 0;
}
And the tpnum+data_size fields are over 4 bytes... This fixes it by
ensuring we allocate space at least for an EOB. We have code
elsewhere that relies on the EOB being present (like e.g.,
find_traceframe), so this seems simplest.
gdb/gdbserver/
2013-09-02 Pedro Alves <palves@redhat.com>
* tracepoint.c (TRACEFRAME_EOB_MARKER_SIZE): New macro.
(init_trace_buffer): Ensure at least TRACEFRAME_EOB_MARKER_SIZE is
allocated.
(trace_buffer_alloc): Use TRACEFRAME_EOB_MARKER_SIZE.
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* record.h (record_print_flag) <record_print_src_line,
record_print_insn_range>: Rename into ...
(record_print_flag) <record_print_src_line,
record_print_insn_range>: ... this. Update all users.
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or WriteProcessMemory complete successfully and handle
ERROR_PARTIAL_COPY error.
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When I added gdb_read_memory, with bits factored out from elsewhere, I
missed adjusting this error return. gdb_read_memory has an interface
similar to Like GDB's xfer_partial:
> /* Read trace frame or inferior memory. Returns the number of bytes
> actually read, zero when no further transfer is possible, and -1 on
> error. Return of a positive value smaller than LEN does not
> indicate there's no more to be read, only the end of the transfer.
Returning EIO, a positive value, is obviously bogus, for the caller
will confuse it with a successful partial transfer.
Found by inspection.
Tested on x86_64 Fedora 17.
gdb/gdbserver/
2013-09-02 Pedro Alves <palves@redhat.com>
* server.c (gdb_read_memory): Return -1 on traceframe memory read
error instead of EIO.
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error code.
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by use of plongest function.
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* s390-opc.txt: Fix description for fiebra, fidbra, and fixbra.
For the load fp integer instructions only the suppression flag was
new with z196 version.
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* NEWS: Add entry mentioning support for native Windows x64
SEH data.
* amd64-windows-tdep.c: #include "objfiles.h", "frame-unwind.h",
"coff/internal.h", "coff/i386.h", "coff/pe.h" and "libcoff.h".
(struct amd64_windows_frame_cache): New struct.
(amd64_windows_w2gdb_regnum): New global.
(pc_in_range, amd64_windows_frame_decode_epilogue)
(amd64_windows_frame_decode_insns, amd64_windows_find_unwind_info)
(amd64_windows_frame_cache, amd64_windows_frame_prev_register)
(amd64_windows_frame_this_id): New functions.
(amd64_windows_frame_unwind): New static global.
(amd64_windows_skip_prologue): New function.
(amd64_windows_init_abi): Call frame_unwind_prepend_unwinder
with amd64_windows_frame_unwind. Call set_gdbarch_skip_prologue
with amd64_windows_skip_prologue.
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* elf64-hppa.c (elf_hppa_final_link_relocate): Add missing '%' to
format string.
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https://sourceware.org/ml/gdb-patches/2013-08/msg00920.html
gdb/ChangeLog
* gdb.base/code_elim1.c (my_bss_symbol): New variable added.
(my_static_symbol): Add comment.
(main): Reference my_bss_symbol.
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When I looked for print_stack_frame calls in MI, I wondered why this
one passing down SRC_AND_LOC. print_stack_frame does:
/* For mi, alway print location and address. */
if (ui_out_is_mi_like_p (current_uiout))
print_what = LOC_AND_ADDRESS;
So it really doesn't matter which value is passed down, but, to avoid
confusion in readers, it's better to use the MI standard here.
There's another SRC_AND_LOC in mi-interp.c, but that one makes sense.
gdb/
2013-08-30 Pedro Alves <palves@redhat.com>
* mi/mi-main.c (mi_cmd_trace_find): Use LOC_AND_ADDRESS instead of
SRC_AND_LOC.
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I noticed SRC_LINE has special handling within print_stack_frame (mid
statement handling), so I audited all uses, and noticed the one in
restore_selected_frame. I actually added this warning myself back in
2008, but reading back, I think we can do better. "reparsed frame" is
probably confusing to users.
Old:
warning: Couldn't restore frame #2 in current thread, at reparsed frame #0
45 w = 0;
(gdb)
New:
warning: Couldn't restore frame #2 in current thread. Bottom (innermost) frame selected:
#0 foo () at foo.c:45
45 w = 0;
(gdb)
Tested on x86_64 Fedora 17.
gdb/
2013-08-30 Pedro Alves <palves@redhat.com>
* thread.c (restore_selected_frame): Use SRC_AND_LOC, and change
warning text.
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1 is SRC_AND_LOC.
Then, this is passing -1 as print_level argument to print_stack_frame.
-1 is not a valid print_level value (it's a regular boolean). But, it
used to be, before
<https://sourceware.org/ml/gdb-patches/2004-04/msg00585.html>.
What happened is that bsd-kvm.c did not exist at the time of that
patch, but went into the tree about a month after, without being
adjusted to the new interface.
Fixed now, exactly as e.g., ocd.c had been adjusted:
> --- ocd.c 18 Jan 2004 19:26:51 -0000 1.28
> +++ ocd.c 23 Apr 2004 14:29:12 -0000
> @@ -225,7 +225,7 @@
> flush_cached_frames ();
> registers_changed ();
> stop_pc = read_pc ();
> - print_stack_frame (get_selected_frame (), -1, 1);
> + print_stack_frame (get_selected_frame (), 0, SRC_AND_LOC);
gdb/
2013-08-30 Pedro Alves <palves@redhat.com>
* bsd-kvm.c (bsd_kvm_open, bsd_kvm_proc_cmd, bsd_kvm_pcb_cmd):
Adjust arguments to print_stack_frame.
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1 is SRC_AND_LOC.
2013-08-30 Pedro Alves <palves@redhat.com>
* ada-tasks.c (task_command_1): Write SRC_AND_LOC instead '1'.
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This is declaring a function that no longer exists. It was deleted
back in 2003-01-13:
...
show_and_print_stack_frame, print_only_stack_frame_stub,
print_only_stack_frame): Delete functions.
gdb/
2013-08-30 Pedro Alves <palves@redhat.com>
* frame.h (show_and_print_stack_frame): Delete declaration.
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PR python/15461
* python/py-arch.c (ARCHPY_REQUIRE_VALID): New macro.
(archpy_name): Check for valid architecture.
(archpy_disassemble): Ditto.
2013-08-30 Phil Muldoon <pmuldoon@redhat.com>
* gdb.python/py-arch.exp: Tests for invalid architecture.
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Thread support got broken when adding 64bit support on ppc-aix.
Upon digging further, I found that the following patch...
| * gdb_ptrace.h: Use ptrace64 instead of ptrace if HAVE_PTRACE64
| is defined.
| * rs6000-nat.c: Check for __ld_info64_ if compiling 64 BIT gdb.
| (rs6000_ptrace32): Call ptrace64 instead of ptrace if present.
| (rs6000_ptrace64): Call ptace64 instead of ptracex if present.
| * configure.ac: Check for ptrace64.
| * configure, config.in: Regenerate.
... is responsible for this regression:
(gdb) x /x &__n_pthreads
0xf06a8258 <__n_pthreads>: Cannot access memory at address 0xf06a8258
Prior to the patch, we have:
(gdb) x /x &__n_pthreads
0xf06a8258 <__n_pthreads>: 0x00000003
The problem occurs inside rs6000_ptrace32, while calling ptrace64.
The address is given to rs6000_ptrace32 as an "int *", while
ptrace64 takes a "long long". The cast causes the address to be
sign-extended, which results in GDB trying to read the wrong address.
This patch fixes the issue by casting the address to a "uintptr_t"
instead, and letting the compiler do the implicit conversion to
"long long" in the function call.
gdb/ChangeLog:
* rs6000-nat.c (rs6000_ptrace32): Cast "addr" to "uintptr_t"
instead of "long long" in call to ptrace64.
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* boards/remote-stdio-gdbserver.exp: Set rcp_prog and
rsh_prog in new conditional. Move use of REMOTE_PORTNUM into
said conditional.
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https://sourceware.org/ml/gdb-patches/2013-08/msg00605.html
gdb/ChangeLog
* mi/mi-interp.c (mi_command_loop): Change signature to match
interp_command_loop_ftype.
(mi1_command_loop): Remove.
(mi2_command_loop): Remove.
(mi3_command_loop): Remove.
(mi_interpreter_resume): Remove setting of
deprecated_command_loop_hook.
(_initialize_mi_interp): Set mi_command_loop as the command loop
callback.
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* valops.c (do_search_struct_field): Pass v2 instead of base_type to
value_type.
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2013-08-29 Sanimir Agovic <sanimir.agovic@intel.com>
* value.c (allocate_value_contents): Make static.
* value.h (allocate_value_contents): Remove prototype.
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I came across a pattern used to construct a value in the following way:
struct value *val = allocate_value_lazy (type);
VALUE_LVAL (val) = lval_memory;
set_value_address (val, address);
Instead we fold the above call into:
value_at_lazy (type, addr);
2013-08-27 Sanimir Agovic <sanimir.agovic@intel.com>
* dwarf2loc.c (dwarf2_evaluate_loc_desc_full): Use value_at_lazy instead
of assembling value via allocate_value_lazy and attribute setter.
* findvar.c (default_read_var_value): Use value_at_lazy instead of
assembling value via allocate_value_lazy and attribute setter.
* valops.c (do_search_struct_field): Use value_at_lazy instead of
assembling value via allocate_value_lazy and attribute setter.
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2013-08-29 Sanimir Agovic <sanimir.agovic@intel.com>
* value.c (value_from_contents_and_address): Replace allocate_value and
memcpy with value_from_contents.
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64-bit -mcmodel=large -fpic TLS GD and LD sequences.
(elf_x86_64_relocate_section): Handle -mcmodel=large -fpic
TLS GD and LD sequences in GD->LE, GD->IE and LD->LE transitions.
ld/testsuite/
* ld-x86-64/x86-64.exp: Add tlsld3, tlsgd7 and tlsgd8 tests.
* ld-x86-64/tlspic1.s: Add -mcmodel=large -fpic TLS GD and LD
sequences.
* ld-x86-64/tlspic.dd: Adjusted.
* ld-x86-64/tlspic.rd: Adjusted.
* ld-x86-64/tlspic-nacl.rd: Adjusted.
* ld-x86-64/tlsld3.dd: New test.
* ld-x86-64/tlsld3.s: New file.
* ld-x86-64/tlsgd7.dd: New test.
* ld-x86-64/tlsgd7.s: New file.
* ld-x86-64/tlsgd8.dd: New test.
* ld-x86-64/tlsgd8.s: New file.
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* gdb.python/py-arch.exp: Load gdb-python.exp.
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* python/py-framefilter.c (py_print_frame): Remove usage of
PyString_AsString. Use python_string_to_host_string instead.
Refactor function to work with a string as a new allocation
instead of a pointer.
(py_print_frame): Ditto.
* python/lib/gdb/frames.py (return_list): Cain iterators together
instead of adding them as a list.
(_sort_list): Call return_list, and remove duplicate code.
(execute_frame_filters): Convert iterator to a list with list().
* python/lib/gdb/command/frame_filters.py
(SetFrameFilterPriority._set_filter_priority): Convert priority
attribute to an integer.
* python/lib/gdb/FrameIterator.py (FrameIterator.next): Define
wrapper function __next__.
* python/lib/gdb/FrameDecorator.py: If basestring not defined,
define as "str".
2013-08-29 Phil Muldoon <pmuldoon@redhat.com>
* gdb.python/py-framefilter.py (FrameFilter.filter): Check
itertools for imap attribute. Otherwise use map().
(ElidingIterator): Define wrapper function __next__.
* gdb.python/py-framefilter-mi.exp: Do not use execfile,
use exec (open (read ())) instead.
* gdb.python/py-framefilter.exp: Ditto.
* gdb.python/py-arch.exp: Update print based test to Python 3.x
compliance.
* gdb.python/py-frame.exp: Ditto.
* gdb.python/py-type.exp: Ditto.
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* ChangeLog: Remove blank lines between PR and ChangeLog description.
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PR python/15752
* python/py-framefilter.c (apply_frame_filter): Check
gdb_python_initialized. Exit if the Python frame-filter code
cannot be initialized.
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PR cli/15842
* top.c (print_gdb_version): Remove erroneous newline after help
text.
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* varobj.c (install_dynamic_child): Remove trailing space.
Add one blank line after variable declaration.
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gdb/
2013-08-27 Jan Kratochvil <jan.kratochvil@redhat.com>
PR gdb/15415
* corefile.c (get_exec_file): Use exec_filename.
* defs.h (OPF_DISABLE_REALPATH): New definition. Add new comment.
* exec.c (exec_close): Free EXEC_FILENAME.
(exec_file_attach): New variable canonical_pathname. Use
OPF_DISABLE_REALPATH. Call gdb_realpath explicitly. Set
EXEC_FILENAME.
* exec.h (exec_filename): New.
* inferior.c (print_inferior, inferior_command): Use
PSPACE_EXEC_FILENAME.
* mi/mi-main.c (print_one_inferior): Likewise.
* progspace.c (clone_program_space, print_program_space): Likewise.
* progspace.h (struct program_space): New field pspace_exec_filename.
* source.c (openp): Describe OPF_DISABLE_REALPATH. New variable
realpath_fptr, initialize it from OPF_DISABLE_REALPATH, use it.
gdb/testsuite/
2013-08-27 Jan Kratochvil <jan.kratochvil@redhat.com>
PR gdb/15415
* gdb.base/argv0-symlink.c: New file.
* gdb.base/argv0-symlink.exp: New file.
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gdb/gdbserver/
2013-08-28 Jan Kratochvil <jan.kratochvil@redhat.com>
PR server/15604
* linux-low.c: Include filestuff.h.
(linux_create_inferior) <pid == 0>: Call close_most_fds.
* lynx-low.c: Include filestuff.h.
(lynx_create_inferior) <pid == 0>: Call close_most_fds.
* server.c: Include filestuff.h.
(main): Call notice_open_fds.
* spu-low.c: Include filestuff.h.
(spu_create_inferior) <pid == 0>: Call close_most_fds.
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when saving index.
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As uintptr_t is used stdint.h must be included on all architectures.
2013-08-28 Will Newton <will.newton@linaro.org>
* common/linux-ptrace.c: Include stdint.h unconditionally.
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Code cleanup.
* nto-tdep.c (nto_find_and_open_solib): Use OPF_TRY_CWD_FIRST.
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* event-top.c (gdb_setup_readline): Call stderr_fileopen
instead of stdio_fileopen.
* main.c (captured_main) [__MINGW32__]: Set stderr unbuffered.
.Call stderr_fileopen instead of stdio_fileopen.
* ui-file.c [__MINGW32__] (stderr_file_write): New function.
[__MINGW32__] (stderr_file_fputs): New function.
(stderr_fileopen): New function.
* ui-file.h (stderr_fileopen): Declare.
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immediate is not suitable for the 32-bit ABI.
* gas/aarch64/illegal.s: Add illegal constant for logical
operation.
* gas/aarch64/illegal.l: Add expected error message.
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