Commit graph

82667 commits

Author SHA1 Message Date
H.J. Lu
386047969d Unmap the buffer if plugin didn't claim the file
If plugin didn't claim the file, unmap the buffer.

	* plugin.c (plugin_input_file_t): Add use_mmap.
	(plugin_pagesize): New.
	(get_view): Use plugin_pagesize.  Set use_mmap if mmap is used.
	(plugin_load_plugins): Initialize plugin_pagesize.
	(plugin_maybe_claim): Unmap the buffer if plugin didn't claim the
	file.
2015-02-10 17:03:59 -08:00
Doug Evans
e7d52ed304 Rename new_symfile_objfile, make static.
gdb/ChangeLog:

	* symfile.h (new_symfile_objfile): Delete.
	* symfile.c (finish_new_objfile): Renamed from new_symfile_objfile.
	All callers updated.
2015-02-10 17:01:37 -08:00
Patrick Palka
fc6b1256ee Fix a pair of screen-resizing issues in TUI
This patch fixes a pair of TUI issues related to screen resizing:

1. In tui_handle_resize_during_io(), when the TUI screen gets resized,
we fail to update GDB's idea about the height of the output window.

You can see this bug by doing:

  a. Enter TUI mode.
  b. "show height"
  c. Resize the terminal.
  d. "show height"

And observe that despite resizing the terminal, the reported height
remains unchanged.  Note that a similar issue exists in the CLI.

The fix for this is simple: call tui_update_gdb_sizes() after performing
a resize, so that the "height" variable remains consistent with the
height of TUI's output window.

2. In tui_enable(), the call to tui_update_gdb_sizes() may clobber
readline's idea of the actual screen dimensions, and a subsequent
pending resize will use bogus terminal dimensions.

You can see this bug by doing:

  a. Enter TUI mode.
  b. Exit TUI mode.
  c. Resize the terminal.
  d. Enter TUI mode.
  e. Press a key to resize the screen.

And observe that the terminal gets incorrectly resized to the wrong
dimensions.  To fix this issue, we should oppurtunistically resize the
screen in tui_enable().  That way we eliminate the possibility of a
pending resize triggering right after we call tui_update_gdb_sizes().

gdb/ChangeLog:

	* tui/tui-io.c (tui_handle_resize_during_io): Call
	tui_update_gdb_sizes() after resizing the screen.
	* tui/tui.c (tui_enable): Resize the terminal before
	calling tui_update_gdb_sizes().
2015-02-10 19:06:49 -05:00
Patrick Palka
d908067812 Fix truncation of TUI command history
If we submit a command while the prompt cursor is somewhere other than
at the end of the command line, the command line gets truncated as the
command window gets shifted one line up.  This happens because we fail
to properly move the cursor to the end of the command line before
transmitting the newline to ncurses.  We need to move the cursor because
when ncurses outputs a newline it truncates any text that appears
past the end of the cursor.

The fix is generic enough to work properly even in multi-line secondary
prompts like the quit prompt.

gdb/ChangeLog:

	* tui/tui-io.c (tui_getc): Move cursor to the end of the command
	line before printing a newline.
2015-02-10 19:06:49 -05:00
GDB Administrator
084910afdd Automatic date update in version.in 2015-02-11 00:00:08 +00:00
Mark Wielaard
9f615e3af0 gdb producer_is_gcc fix bool return value.
gdb/ChangeLog:

	* utils.c (producer_is_gcc): Return true or false.
2015-02-11 00:45:39 +01:00
Mark Wielaard
b1ffba5a7f Change producer_is_gcc function return type to bool.
gdb/ChangeLog:

        * utils.h (producer_is_gcc): Change return type to bool. Add major
        argument.
        * utils.c (producer_is_gcc): Likewise.
        (producer_is_gcc_ge_4): Adjust producer_is_gcc call.
        * dwarf2read.c (check_producer): Likewise.
2015-02-10 21:20:38 +01:00
Pedro Alves
01b088bc51 Add "signal SIGTRAP" test
Some local changes I was working on related to SIGTRAP handling
resulted in "signal SIGTRAP" no longer passing the SIGTRAP to the
inferior.

Surprisingly, only annota1.exp catches this.  This commit adds a test
that doesn't rely on annotations, so that at the point annotations are
finaly dropped, we still have this use case covered ...

This is a multi-threaded test to also exercise the case of first
needing to do a step-over before delivering the signal.

Tested on x86_64 Fedora 20, native, remote/extended-remote gdbserver.

gdb/testsuite/
2015-02-10  Pedro Alves  <palves@redhat.com>

	* gdb.threads/signal-sigtrap.c: New file.
	* gdb.threads/signal-sigtrap.exp: New file.
2015-02-10 19:30:55 +00:00
Pedro Alves
b052c4fbf5 displaced_step_fixup may access memory from the wrong inferior/thread
displaced_step_fixup takes an thread to work with, as argument.  OTOH,
gdbarch_displaced_step_fixup fixes up the current thread.  The former
calls the latter without making sure the current thread is the one
that was passed in.  If it is not, then gdbarch_displaced_step_fixup
may e.g., try reading from a running thread, which doesn't work on
some targets, or worse, read memory from the wrong inferior and
succeed.

This is mostly a latent problem currently, as non-stop switches the
current thread to the event thread early in fetch_inferior_event.

Tested on x86_64 Fedora 20.

gdb/
2015-02-10  Pedro Alves  <palves@redhat.com>

	* infrun.c (displaced_step_fixup): Switch to the event thread
	before calling gdbarch_displaced_step_fixup.
2015-02-10 19:13:31 +00:00
Antoine Tremblay
b05ec7a53f gdbserver: Fix crash when QTinit is handled with no inferior process attached
When gdbserver is called with --multi and attach has not been called yet
and tstart is called on the gdb client, gdbserver would crash.
This patch fixes gdbserver so that it returns E01 to the gdb client.

Also this patch adds a testcase to verify this bug named no-attach-trace.exp

gdb/gdbserver/ChangeLog:
	PR breakpoints/15956
	* tracepoint.c (cmd_qtinit): Add check for current_thread.

gdb/testsuite/ChangeLog:
	* gdb.trace/no-attach-trace.c: New file.
	* gdb.trace/no-attach-trace.exp: New file.
2015-02-10 13:49:41 -05:00
Antoine Tremblay
3ac240d438 Add myself as write-after-approval GDB maintainer
gdb/ChangeLog:
	* MAINTAINERS (Write After Approval): Add Antoine Tremblay.
2015-02-10 13:38:57 -05:00
Pedro Alves
07774fccc3 opcodes/microblaze: Rename 'or', 'and', 'xor' to avoid C++ conflict
Building GDB as a C++ program, we see:

  In file included from gdb/microblaze-tdep.c:37:0:
  gdb/../opcodes/../opcodes/microblaze-opcm.h: At global scope:
  gdb/../opcodes/../opcodes/microblaze-opcm.h:32:51: error: expected identifier before ‘or’ token
     ncget, ncput, muli, bslli, bsrai, bsrli, mului, or, and, xor,
						     ^
  gdb/../opcodes/../opcodes/microblaze-opcm.h:32:51: error: expected ‘}’ before ‘or’ token
  gdb/../opcodes/../opcodes/microblaze-opcm.h:32:51: error: expected unqualified-id before ‘or’ token
  gdb/../opcodes/../opcodes/microblaze-opcm.h:60:1: error: expected declaration before ‘}’ token
   };
   ^

opcodes/ChangeLog:
2015-02-10  Pedro Alves  <palves@redhat.com>
	    Tom Tromey  <tromey@redhat.com>

	* microblaze-opcm.h (or, and, xor): Rename to microblaze_or,
	microblaze_and, microblaze_xor.
	* microblaze-opc.h (opcodes): Adjust.
2015-02-10 18:09:39 +00:00
Simon Marchi
c1cc615262 Finish constification of varobj interface
This completes the constification of the struct varobj pointers in the
lang_varobj_ops interface partially done in
b09e2c591f. As suggested by Pedro,
varobj_get_path_expr casts away the const to assign the "mutable" struct
member.

gdb/ChangeLog:

	* ada-varobj.c (ada_name_of_child): Constify parent.
	(ada_path_expr_of_child): Same.
	(ada_value_of_child): Same.
	(ada_type_of_child): Same.
	* c-varobj.c (c_is_path_expr_parent): Same.
	(c_describe_child): Same.
	(c_name_of_child): Same.
	(c_value_of_child): Same.
	(c_type_of_child): Same.
	(cplus_number_of_children): Same.
	(cplus_describe_child): Constify var.
	(cplus_name_of_child): Constify parent.
	(cplus_value_of_child): Same.
	(cplus_type_of_child): Same.
	* jv-varobj.c (java_name_of_child): Same.
	(java_value_of_child): Same.
	(java_type_of_child): Same.
	* varobj.c (value_of_child): Same.
	(varobj_default_is_path_expr_parent): Constify var, parent and return
	value.
	(varobj_get_path_expr): Constify var, modify path_expr through
	mutable_var.
	(install_new_value): Constify parent.
	(value_of_child): Constify parent.
	* varobj.h (struct varobj): Constify parent.
	(struct lang_varobj_ops): Constify name_of_child, value_of_child and
	type_of_child.
	(varobj_get_path_expr): Constify var.
	(varobj_get_path_expr_parent): Constify var and return value.
2015-02-10 12:57:47 -05:00
Nick Clifton
834f871cdc Fix memory access violations discovered by running readelf compiled with undefined memory access sanitization on fuzzed binaries.
PR binutils/17531
	* dwarf.c (display_debug_pubnames_worker): Use dwarf_vma type for
	offset.
	* readelf.c (dump_relocations): Handle printing offsets which are
	MIN_INT.
	(process_corefile_note_segment): Add range check of the namesz
	field.
2015-02-10 17:53:53 +00:00
Nick Clifton
03a91817f1 Fixes for memory access violations triggered by running readelf on fuzzed binaries.
PR binutils/17531
	* dwarf.c (process_debug_info): Zero the debug information array
	since correct initialisation cannot be relied upon.
	(process_cu_tu_index): Improve range checks.
2015-02-10 17:13:31 +00:00
Nick Clifton
77ef865475 Fix memory access violations triggered by running objdump compiled with out-of-bounds sanitization checking.
PR binutils/17512
	* dwarf.c (eh_addr_size): Use an unsigned type.
	(size_of_encoded_value): Return an unsigned type.
	(read_leb128): Break if the shift becomes too big.
	(process_extended_line_op): Do not read the address if the length
	is too long.
	(read_cie): Warn and fail if the pointer size or segment size are
	too big.
	* dwarf.h (DWARF2_External_LineInfo): Delete unused and incorrect
	structure definition.
	(DWARF2_External_PubNames): Likewise.
	(DWARF2_External_CompUnit): Likewise.
	(DWARF2_External_ARange): Likewise.
	(DWARF2_Internal_LineInfo): Use dwarf_vma type for
	li_prologue_length.
	(eh_addr_size): Update prototype.

	* coffcode.h (styp_to_sec_flags): Use an unsigned long type to
	hold the flag bits.
	* peXXigen.c (pe_print_reloc): Use unsigned types to hold the
	size and number of relocs.
	(pe_print_debugdata): Use a 32-bit aligned buffer to store the
	codeview record.
	* versados.c (process_otr): Check the esdid value before using it
	to access the EDATA.
2015-02-10 14:11:00 +00:00
H.J. Lu
b677c4562d Add the missing HAVE_GETPAGESIZE check in get_view 2015-02-10 05:46:38 -08:00
H.J. Lu
fe9057895e Align offset passed to mmap
Offset passed to mmap must be a multiple of the page size.  This patch
aligns offset passed to mmap.

	* plugin.c (get_view): Align offset passed to mmap.
2015-02-10 05:30:56 -08:00
Luis Machado
c1ee941477 Relax ARM prologue unwinder assumption
Modify the ARM prologue unwinder to use the stop_reason hook instead of
returning imprecise frame id's through the arm prologue this_id hook.

gdb/
2015-02-10  Luis Machado  <lgustavo@codesourcery.com>

	* arm-tdep.c (arm_prologue_unwind_stop_reason): New function.
	(arm_prologue_this_id): Move PC and SP limit checks to
	arm_prologue_unwind_stop_reason.
	(arm_prologue_unwind) <stop_reason> : Set to
	arm_prologue_unwind_stop_reason.
2015-02-10 09:46:11 -02:00
Mark Wielaard
f7de9aab90 Recognize new DWARF5/GCC5 DW_LANG Fortran 2003 and Fortran 2008 standards.
DWARFv5 defines and GCC5 may output two new DW_LANG constants for the
Fortran 2003 and Fortran 2008 standards. Recognize both as variants of
language_fortran.

gdb/ChangeLog:

	* dwarf2read.c (set_cu_language): Recognize DW_LANG_Fortran03 and
	DW_LANG_Fortran08 as language_fortran.

http://dwarfstd.org/ShowIssue.php?issue=141121.1
2015-02-10 10:15:04 +01:00
Mark Wielaard
5a19504458 Recognize new DWARF5/GCC5 DW_LANG constants for Fortran 03 and Fortran 08.
DWARFv5 defines and GCC5 may output two new DW_LANG constants for the
Fortran 2003 and Fortran 2008 standards. Handle and display both in
binutils.

binutils/ChangeLog:

	* dwarf.c (read_and_display_attr_value): Handle DW_LANG_Fortran03
	and DW_LANG_Fortran08.

include/ChangeLog:

	* dwarf2.h: Add DW_LANG_Fortran03 and DW_LANG_Fortran08.

http://dwarfstd.org/ShowIssue.php?issue=141121.1
2015-02-10 09:07:25 +01:00
Sergio Durigan Junior
0b24eb2de5 PR remote/17946: Fix wrong comparison of pointer against char
We were comparing a pointer against a char on remote.c.  'dcb' filed a
bug to inform us about that.  I pushed the following patch under the
obvious rule.

gdb/ChangeLog:
2015-02-09  Sergio Durigan Junior  <sergiodj@redhat.com>

	PR remote/17946
	* gdb/remote.c (remote_parse_stop_reply): Fix wrong comparison
	of pointer against char.
2015-02-09 19:00:55 -05:00
GDB Administrator
134cdf8ed3 Automatic date update in version.in 2015-02-10 00:00:08 +00:00
Ed Maste
35181b3eaa Avoid incrementing uninitialized variable
* elf32-i386.c (elf_i386_get_plt_sym_val): Avoid incrementing
	uninitialized and unused variable.
	* elf64-x86-64.c (elf_x86_64_get_plt_sym_val): Likewise.
2015-02-09 13:55:34 -08:00
Mark Wielaard
a2c2acaf15 GCC5/DWARFv5 Handle DW_TAG_atomic_type for C11 _Atomic type qualifier.
gdb/ChangeLog

	* c-typeprint.c (cp_type_print_method_args): Handle '_Atomic'.
	(c_type_print_modifier): Likewise.
	* dwarf2read.c (read_tag_atomic_type): New function.
	(read_type_die_1): Handle DW_TAG_atomic_type.
	* gdbtypes.c (make_atomic_type): New function.
	(recursive_dump_type): Handle TYPE_ATOMIC.
	* gdbtypes.h (enum type_flag_values): Renumber.
	(enum type_instance_flag_value): Add TYPE_INSTANCE_FLAG_ATOMIC.
	(TYPE_ATOMIC): New macro.
	(make_atomic_type): Declare.

gdb/testsuite/ChangeLog

	* gdb.dwarf2/atomic.c: New file.
	* gdb.dwarf2/atomic-type.exp: Likewise.

include/ChangeLog

	* dwarf2.def: Add DW_TAG_atomic_type.
2015-02-09 15:09:22 +01:00
H.J. Lu
e051a5b512 Replace two_file_shared_2.so with two_file_shared_1.so
There are

two_file_shared_2_pic_1_test_LDADD = two_file_test_2_pic.o two_file_shared_1.so

There should be two_file_shared_1.so, not two_file_shared_2.so in
two_file_shared_2_pic_1_test_DEPENDENCIES.

	* testsuite/Makefile.am (two_file_shared_2_pic_1_test_DEPENDENCIES):
	Replace two_file_shared_2.so with two_file_shared_1.so.
	* testsuite/Makefile.in: Regenerated.
2015-02-09 05:36:02 -08:00
Kyrylo Tkachov
5c3696f89f [ARM][gas] Use as_tsktsk instead of as_warn for deprecation messages.
* config/tc-arm.c (warn_deprecated_sp): Use as_tsktsk instead
	of as_warn for deprecation messages.
	(encode_arm_addr_mode_2): Likewise.
	(check_obsolete): Likewise.
	(do_rd_rm_rn): Likewise.
	(do_co_reg): Likewise.
	(do_setend): Likewise.
	(do_t_mov_cmp): Likewise.
	(do_neon_ldr_str): Likewise.
	(opcode_lookup): Likewise.
	(if_fsm_post_encode): Likewise.
	(md_assemble): Likewise.

	* gas/arm/armv1.l: Remove 'Warning: ' from expected messages
	for deprecations.
	* gas/arm/armv8-a-bad.l: Likewise.
	* gas/arm/armv8-a-it-bad.l: Likewise.
	* gas/arm/depr-swp.l: Likewise.
	* gas/arm/ldsgeb.l: Likewise.
	* gas/arm/ldsgeh.l: Likewise.
	* gas/arm/thumb2_bad_reg.l: Likewise.
	* gas/arm/thumb32.l: Likewise.
	* gas/arm/udf.l: Likewise.
	* gas/arm/vstr-arm-bad.l: Likewise.
2015-02-09 11:20:30 +00:00
Markus Metzger
31fd9caad9 record-btrace: indicate gaps
Indicate gaps in the trace due to decode errors.  Internally, a gap is
represented as a btrace function segment without instructions and with a
non-zero format-specific error code.

Show the gap when traversing the instruction or function call history.
Also indicate gaps in "info record".

It looks like this:

  (gdb) info record
  Active record target: record-btrace
  Recording format: Branch Trace Store.
  Buffer size: 64KB.
  Recorded 32 instructions in 5 functions (1 gaps) for thread 1 (process 7182).
  (gdb) record function-call-history /cli
  1	fib	inst 1,9	at src/fib.c:9,14
  2	  fib	inst 10,20	at src/fib.c:6,14
  3	[decode error (1): instruction overflow]
  4	fib	inst 21,28	at src/fib.c:11,14
  5	  fib	inst 29,33	at src/fib.c:6,9
  (gdb) record instruction-history 20,22
  20	   0x000000000040062f <fib+47>:	sub    $0x1,%rax
  [decode error (1): instruction overflow]
  21	   0x0000000000400613 <fib+19>:	add    $0x1,%rax
  22	   0x0000000000400617 <fib+23>:	mov    %rax,0x200a3a(%rip)
  (gdb)

Gaps are ignored during reverse execution and replay.

2015-02-09  Markus Metzger  <markus.t.metzger@intel.com>

	* btrace.c (ftrace_find_call): Skip gaps.
	(ftrace_new_function): Initialize level.
	(ftrace_new_call, ftrace_new_tailcall, ftrace_new_return)
	(ftrace_new_switch): Update
	level computation.
	(ftrace_new_gap): New.
	(ftrace_update_function): Create new function after gap.
	(btrace_compute_ftrace_bts): Create gap on error.
	(btrace_stitch_bts): Update parameters.  Clear trace if it
	becomes empty.
	(btrace_stitch_trace): Update parameters.  Update callers.
	(btrace_clear): Reset the number of gaps.
	(btrace_insn_get): Return NULL if the iterator points to a gap.
	(btrace_insn_number): Return zero if the iterator points to a gap.
	(btrace_insn_end): Allow gaps at the end.
	(btrace_insn_next, btrace_insn_prev, btrace_insn_cmp): Handle gaps.
	(btrace_find_insn_by_number): Assert that the found iterator does
	not point to a gap.
	(btrace_call_next, btrace_call_prev): Assert that the last function
	is not a gap.
	* btrace.h (btrace_bts_error): New.
	(btrace_function): Update comment.
	(btrace_function) <insn, insn_offset, number>: Update comment.
	(btrace_function) <errcode>: New.
	(btrace_thread_info) <ngaps>: New.
	(btrace_thread_info) <replay>: Update comment.
	(btrace_insn_get): Update comment.
	* record-btrace.c (btrace_ui_out_decode_error): New.
	(record_btrace_info): Print number of gaps.
	(btrace_insn_history, btrace_call_history): Call
	btrace_ui_out_decode_error for gaps.
	(record_btrace_step_thread, record_btrace_start_replaying): Skip gaps.

testsuite/
	* gdb.btrace/buffer-size.exp: Update "info record" output.
	* gdb.btrace/delta.exp: Update "info record" output.
	* gdb.btrace/enable.exp: Update "info record" output.
	* gdb.btrace/finish.exp: Update "info record" output.
	* gdb.btrace/instruction_history.exp: Update "info record" output.
	* gdb.btrace/next.exp: Update "info record" output.
	* gdb.btrace/nexti.exp: Update "info record" output.
	* gdb.btrace/step.exp: Update "info record" output.
	* gdb.btrace/stepi.exp: Update "info record" output.
	* gdb.btrace/nohist.exp: Update "info record" output.
2015-02-09 09:52:10 +01:00
Markus Metzger
afb778a2a8 btrace: identify cpu
Add a struct for identifying a processor and use it in linux-btrace.c when
identifying the processor we're running on.

We will need this feature for the new btrace format.

2015-02-09  Markus Metzger  <markus.t.metzger@intel.com>

	* common/btrace-common.h (btrace_cpu_vendor, btrace_cpu): New.
	* nat/linux-btrace.c: (btrace_this_cpu): New.
	(cpu_supports_bts): Call btrace_this_cpu.
	(intel_supports_bts): Add cpu parameter.
2015-02-09 09:49:15 +01:00
Markus Metzger
7d5c24b3ae btrace: extend struct btrace_insn
Add the instruction's size as well as a coarse classification to struct
btrace_insn.  Use the information in ftrace_update_function and
ftrace_find_call.

2015-02-09  Markus Metzger  <markus.t.metzger@intel.com>

	* btrace.h (btrace_insn_class): New.
	(btrace_insn) <size, iclass>: New.
	* btrace.c (ftrace_find_call): Update parameters.  Update users.
	Use instruction classification.
	(ftrace_new_return): Update parameters.  Update users.
	(ftrace_update_function): Update parameters.  Update users.  Use
	instruction classification.
	(ftrace_update_insns): Update parameters.  Update users.
	(ftrace_classify_insn): New.
	(btrace_compute_ftrace_bts): Fill in new btrace_insn fields.  Add
	TRY_CATCH around call to gdb_insn_length.
2015-02-09 09:46:49 +01:00
Markus Metzger
76235df10b btrace: update btrace_compute_ftrace parameters
Pass thread_info instead of btrace_thread_info to btrace_compute_ftrace.
We will need the thread_info in subsequent patches.

2015-02-09  Markus Metzger  <markus.t.metzger@intel.com>

	* btrace.c (btrace_compute_ftrace_bts, btrace_compute_ftrace):
	Update parameters.  Update users.
2015-02-09 09:45:00 +01:00
Markus Metzger
d33501a51f record-btrace: add bts buffer size configuration option
Allow the size of the branch trace ring buffer to be defined by the
user.  The specified buffer size will be used when BTS tracing is
enabled for new threads.

The obtained buffer size may differ from the requested size.  The
actual buffer size for the current thread is shown in the "info record"
command.

Bigger buffers mean longer traces, but also longer processing time.

2015-02-09  Markus Metzger  <markus.t.metzger@intel.com>

	* btrace.c (parse_xml_btrace_conf_bts): Add size.
	(btrace_conf_bts_attributes): New.
	(btrace_conf_children): Add attributes.
	* common/btrace-common.h (btrace_config_bts): New.
	(btrace_config)<bts>: New.
	(btrace_config): Update comment.
	* nat/linux-btrace.c (linux_enable_btrace, linux_enable_bts):
	Use config.
	* features/btrace-conf.dtd: Increment version.  Add size
	attribute to bts element.
	* record-btrace.c (set_record_btrace_bts_cmdlist,
	show_record_btrace_bts_cmdlist): New.
	(record_btrace_adjust_size, record_btrace_print_bts_conf,
	record_btrace_print_conf, cmd_set_record_btrace_bts,
	cmd_show_record_btrace_bts): New.
	(record_btrace_info): Call record_btrace_print_conf.
	(_initialize_record_btrace): Add commands.
	* remote.c: Add PACKET_Qbtrace_conf_bts_size enum.
	(remote_protocol_features): Add Qbtrace-conf:bts:size packet.
	(btrace_sync_conf): Synchronize bts size.
	(_initialize_remote): Add Qbtrace-conf:bts:size packet.
	* NEWS: Announce new commands and new packets.

doc/
	* gdb.texinfo (Branch Trace Configuration Format): Add size.
	(Process Record and Replay): Describe new set|show commands.
	(General Query Packets): Describe Qbtrace-conf:bts:size packet.

testsuite/
	* gdb.btrace/buffer-size: New.

gdbserver/
	* linux-low.c (linux_low_btrace_conf): Print size.
	* server.c (handle_btrace_conf_general_set): New.
	(hanle_general_set): Call handle_btrace_conf_general_set.
	(handle_query): Report Qbtrace-conf:bts:size as supported.
2015-02-09 09:42:28 +01:00
Markus Metzger
f4abbc1682 record btrace: add configuration struct
Add a struct to describe the branch trace configuration and use it for
enabling branch tracing.

The user will be able to set configuration fields for each tracing format
to be used for new threads.

The actual configuration that is active for a given thread will be shown
in the "info record" command.

At the moment, the configuration struct only contains a format field
that is set to the only available format.

The format is the only configuration option that can not be set via set
commands.  It is given as argument to the "record btrace" command when
starting recording.

2015-02-09  Markus Metzger  <markus.t.metzger@intel.com>

	* Makefile.in (XMLFILES): Add btrace-conf.dtd.
	* x86-linux-nat.c (x86_linux_enable_btrace): Update parameters.
	(x86_linux_btrace_conf): New.
	(x86_linux_create_target): Initialize to_btrace_conf.
	* nat/linux-btrace.c (linux_enable_btrace): Update parameters.
	Check format.  Split into this and ...
	(linux_enable_bts): ... this.
	(linux_btrace_conf): New.
	(perf_event_skip_record): Renamed into ...
	(perf_event_skip_bts_record): ... this.  Updated users.
	(linux_disable_btrace): Split into this and ...
	(linux_disable_bts): ... this.
	(linux_read_btrace): Check format.
	* nat/linux-btrace.h (linux_enable_btrace): Update parameters.
	(linux_btrace_conf): New.
	(btrace_target_info)<ptid>: Moved.
	(btrace_target_info)<conf>: New.
	(btrace_target_info): Split into this and ...
	(btrace_tinfo_bts): ... this.  Updated users.
	* btrace.c (btrace_enable): Update parameters.
	(btrace_conf, parse_xml_btrace_conf_bts, parse_xml_btrace_conf)
	(btrace_conf_children, btrace_conf_attributes)
	(btrace_conf_elements): New.
	* btrace.h (btrace_enable): Update parameters.
	(btrace_conf, parse_xml_btrace_conf): New.
	* common/btrace-common.h (btrace_config): New.
	* feature/btrace-conf.dtd: New.
	* record-btrace.c (record_btrace_conf): New.
	(record_btrace_cmdlist): New.
	(record_btrace_enable_warn, record_btrace_open): Pass
	&record_btrace_conf.
	(record_btrace_info): Print recording format.
	(cmd_record_btrace_bts_start): New.
	(cmd_record_btrace_start): Call cmd_record_btrace_bts_start.
	(_initialize_record_btrace): Add "record btrace bts" subcommand.
	Add "record bts" alias command.
	* remote.c (remote_state)<btrace_config>: New.
	(remote_btrace_reset, PACKET_qXfer_btrace_conf): New.
	(remote_protocol_features): Add qXfer:btrace-conf:read.
	(remote_open_1): Call remote_btrace_reset.
	(remote_xfer_partial): Handle TARGET_OBJECT_BTRACE_CONF.
	(btrace_target_info)<conf>: New.
	(btrace_sync_conf, btrace_read_config): New.
	(remote_enable_btrace): Update parameters.  Call btrace_sync_conf and
	btrace_read_conf.
	(remote_btrace_conf): New.
	(init_remote_ops): Initialize to_btrace_conf.
	(_initialize_remote): Add qXfer:btrace-conf packet.
	* target.c (target_enable_btrace): Update parameters.
	(target_btrace_conf): New.
	* target.h (target_enable_btrace): Update parameters.
	(target_btrace_conf): New.
	(target_object)<TARGET_OBJECT_BTRACE_CONF>: New.
	(target_ops)<to_enable_btrace>: Update parameters and comment.
	(target_ops)<to_btrace_conf>: New.
	* target-delegates: Regenerate.
	* target-debug.h (target_debug_print_const_struct_btrace_config_p)
	(target_debug_print_const_struct_btrace_target_info_p): New.
	NEWS: Announce new command and new packet.

doc/
	* gdb.texinfo (Process Record and Replay): Describe the "record
	btrace bts" command.
	(General Query Packets): Describe qXfer:btrace-conf:read packet.
	(Branch Trace Configuration Format): New.

gdbserver/
	* linux-low.c (linux_low_enable_btrace): Update parameters.
	(linux_low_btrace_conf): New.
	(linux_target_ops)<to_btrace_conf>: Initialize.
	* server.c (current_btrace_conf): New.
	(handle_btrace_enable): Rename to ...
	(handle_btrace_enable_bts): ... this.  Pass &current_btrace_conf
	to target_enable_btrace.  Update comment.  Update users.
	(handle_qxfer_btrace_conf): New.
    (qxfer_packets): Add btrace-conf entry.
	(handle_query): Report qXfer:btrace-conf:read as supported packet.
	* target.h (target_ops)<enable_btrace>: Update parameters and comment.
	(target_ops)<read_btrace_conf>: New.
	(target_enable_btrace): Update parameters.
	(target_read_btrace_conf): New.

testsuite/
	* gdb.btrace/delta.exp: Update "info record" output.
	* gdb.btrace/enable.exp: Update "info record" output.
	* gdb.btrace/finish.exp: Update "info record" output.
	* gdb.btrace/instruction_history.exp: Update "info record" output.
	* gdb.btrace/next.exp: Update "info record" output.
	* gdb.btrace/nexti.exp: Update "info record" output.
	* gdb.btrace/step.exp: Update "info record" output.
	* gdb.btrace/stepi.exp: Update "info record" output.
	* gdb.btrace/nohist.exp: Update "info record" output.
2015-02-09 09:38:55 +01:00
Markus Metzger
aadf7753fd btrace, linux: add perf event buffer abstraction
Collect perf event buffer related fields from btrace_target_info into
a new struct perf_event_buffer.  Update functions that operated on the
buffer to take a struct perf_event_buffer pointer rather than a
btrace_target_info pointer.

2015-02-09  Markus Metzger  <markus.t.metzger@intel.com>

	* nat/linux-btrace.h (perf_event_buffer): New.
	(btrace_target_info) <buffer, size, data_head>: Replace with ...
	<bts>: ... this.
	* nat/linux-btrace.c (perf_event_header, perf_event_mmap_size)
	(perf_event_buffer_size, perf_event_buffer_begin)
	(perf_event_buffer_end, linux_btrace_has_changed): Removed.
	Updated users.
	(perf_event_new_data): New.
2015-02-09 09:33:59 +01:00
Markus Metzger
043c357797 btrace: add format argument to supports_btrace
Add a format argument to the various supports_btrace functions to check
for support of a specific btrace format.  This is to prepare for a new
format.

Removed two redundant calls.  The check will be made in the subsequent
btrace_enable call.

2015-02-09  Markus Metzger  <markus.t.metzger@intel.com>

	* btrace.c (btrace_enable): Pass BTRACE_FORMAT_BTS.
	* record-btrace.c (record_btrace_open): Remove call to
	target_supports_btrace.
	* remote.c (remote_supports_btrace): Update parameters.
	* target.c (target_supports_btrace): Update parameters.
	* target.h (to_supports_btrace, target_supports_btrace): Update
	parameters.
	* target-delegates.c: Regenerate.
	* target-debug.h (target_debug_print_enum_btrace_format): New.
	* nat/linux-btrace.c
	(kernel_supports_btrace): Rename into ...
	(kernel_supports_bts): ... this.  Update users.  Update warning text.
	(intel_supports_btrace): Rename into ...
	(intel_supports_bts): ... this.  Update users.
	(cpu_supports_btrace): Rename into ...
	(cpu_supports_bts): ... this.  Update users.
	(linux_supports_btrace): Update parameters.  Split into this and ...
	(linux_supports_bts): ... this.
	* nat/linux-btrace.h (linux_supports_btrace): Update parameters.

gdbserver/
	* server.c (handle_btrace_general_set): Remove call to
	target_supports_btrace.
	(supported_btrace_packets): New.
	(handle_query): Call supported_btrace_packets.
	* target.h: include btrace-common.h.
	(btrace_target_info): Removed.
	(supports_btrace, target_supports_btrace): Update parameters.
2015-02-09 09:31:14 +01:00
Markus Metzger
734b0e4bda btrace: add struct btrace_data
Add a structure to hold the branch trace data and an enum to describe
the format of that data.  So far, only BTS is supported.  Also added
a NONE format to indicate that no branch trace data is available.

This will make it easier to support different branch trace formats in
the future.

2015-02-09  Markus Metzger  <markus.t.metzger@intel.com>

	* Makefile.in (SFILES): Add common/btrace-common.c.
	(COMMON_OBS): Add common/btrace-common.o.
	(btrace-common.o): Add build rules.
	* btrace.c (parse_xml_btrace): Update parameters.
	(parse_xml_btrace_block): Set format field.
	(btrace_add_pc, btrace_fetch): Use struct btrace_data.
	(do_btrace_data_cleanup, make_cleanup_btrace_data): New.
	(btrace_compute_ftrace): Split into this and...
	(btrace_compute_ftrace_bts): ...this.
	(btrace_stitch_trace): Split into this and...
	(btrace_stitch_bts): ...this.
	* btrace.h (parse_xml_btrace): Update parameters.
	(make_cleanup_btrace_data): New.
	* common/btrace-common.c: New.
	* common/btrace-common.h: Include common-defs.h.
	(btrace_block_s): Update comment.
	(btrace_format): New.
	(btrace_format_string): New.
	(btrace_data_bts): New.
	(btrace_data): New.
	(btrace_data_init, btrace_data_fini, btrace_data_empty): New.
	* remote.c (remote_read_btrace): Update parameters.
	* target.c (target_read_btrace): Update parameters.
	* target.h (target_read_btrace): Update parameters.
	(target_ops)<to_read_btrace>: Update parameters.
	* x86-linux-nat.c (x86_linux_read_btrace): Update parameters.
	* target-delegates.c: Regenerate.
	* target-debug (target_debug_print_struct_btrace_data_p): New.
	* nat/linux-btrace.c (linux_read_btrace): Split into this and...
	(linux_read_bts): ...this.
	* nat/linux-btrace.h (linux_read_btrace): Update parameters.

gdbserver/
	* Makefile.in (SFILES): Add common/btrace-common.c.
	(OBS): Add common/btrace-common.o.
	(btrace-common.o): Add build rules.
	* linux-low: Include btrace-common.h.
	(linux_low_read_btrace): Use struct btrace_data.  Call
	btrace_data_init and btrace_data_fini.
2015-02-09 09:21:44 +01:00
Alan Modra
989f98793c Don't segfault or assert on NULL tls_sec
Real code won't hit these, but it's possible to contrive a testcase..

	* elf32-ppc.c (ppc_elf_relocate_section): Don't segfault on NULL
	tls_sec.
	* elf64-ppc.c (ppc64_elf_relocate_section): Likewise.
	* elflink.c (elf_link_output_extsym): Don't assert on NULL tls_sec.
2015-02-09 14:06:27 +10:30
Alan Modra
ca4be51cd8 elflink.c whitespace, formatting and a plugin symbol tweak
* elflink.c: Whitespace, formatting fixes.
	(elf_link_input_bfd): Clarify comment.
	(elf_link_output_extsym): Exclude symbols in linker created
	sections when testing for plugin symbols.
2015-02-09 14:02:56 +10:30
Alan Modra
dddcc5b9a8 Gold testsuite make clean
* testsuite/Makefile.am (MOSTLYCLEANFILES): Add libweak_undef_2.a,
	plugin_test_thin.a and defsym_test.
	* testsuite/Makefile.in: Regenerate.
2015-02-09 13:19:53 +10:30
GDB Administrator
1474044c62 Automatic date update in version.in 2015-02-09 00:00:08 +00:00
H.J. Lu
1d5b29cfe4 Don't bfd_check_format if not needed
When plugin isn't active or there is no thing more to claim, we don't
need to call bfd_check_format.

	* ldfile.c (ldfile_try_open_bfd): Don't call bfd_check_format
	if plugin isn't active or there is no thing more to claim.
2015-02-08 15:00:34 -08:00
H.J. Lu
e13419c472 Check format against bfd_object directly
There is no need to call bfd_check_format.  We should just check format
against bfd_object directly.

	* plugin.c (plugin_maybe_claim): Check format against bfd_object
	directly.
2015-02-08 08:45:23 -08:00
GDB Administrator
63a5fbcfa8 Automatic date update in version.in 2015-02-08 00:00:12 +00:00
H.J. Lu
9384389406 Replace entry->the_bfd with ibfd
* plugin.c (plugin_maybe_claim): Replace entry->the_bfd with
	ibfd.
2015-02-07 12:50:17 -08:00
H.J. Lu
35a1e5f305 Update plugin_maybe_claim
This patch removes the argument of pointer to struct ld_plugin_input_file.
This is the first step to extract a plugin_object_p out of
plugin_maybe_claim for BFD.

	* plugin.c: Include "libbfd.h".
	(plugin_strdup): New.
	(plugin_maybe_claim): Remove the argument of pointer to struct
	ld_plugin_input_file.  Open and handle input entry.
	* plugin.h (plugin_maybe_claim): Updated.
	* ldfile.c (ldfile_try_open_bfd): Call plugin_maybe_claim directly
	without passing a pointer to struct ld_plugin_input_file.
	* ldmain.c: Don't include "libbfd.h".
	(add_archive_element): Call plugin_maybe_claim directly without
	passing a pointer to struct ld_plugin_input_file.
2015-02-07 11:01:22 -08:00
H.J. Lu
1952c5cd7d Issue relocation in RO section warning for -z text
This patch changes linker to issue a warning for relocation in readonly
section for -z text.

bfd/

	PR ld/17935
	* elf32-i386.c (elf_i386_readonly_dynrelocs): Also issue a
	warning for relocation in readonly section for -z text.
	(elf_i386_size_dynamic_sections): Likewise.
	* elf64-x86-64.c (elf_x86_64_readonly_dynrelocs): Likewise.
	(elf_x86_64_size_dynamic_sections): Likewise.

ld/testsuite/

	PR ld/17935
	* ld-i386/i386.exp: Run pr17935-1 and pr17935-2.
	* ld-x86-64/x86-64.exp: Likewise.

	* ld-i386/pr17935-1.d: New file.
	* ld-i386/pr17935-1.s: Likewise.
	* ld-i386/pr17935-2.d: Likewise.
	* ld-i386/pr17935-2.s: Likewise.
	* ld-x86-64/pr17935-1.d: Likewise.
	* ld-x86-64/pr17935-1.s: Likewise.
	* ld-x86-64/pr17935-2.d: Likewise.
	* ld-x86-64/pr17935-2.s: Likewise.
2015-02-07 05:28:06 -08:00
GDB Administrator
11228d29d5 Automatic date update in version.in 2015-02-07 00:00:08 +00:00
Doug Evans
bd2e0e9e9a remote-m32r-sdi.c: Include symfile.h.
gdb/ChangeLog:

	* remote-m32r-sdi.c: Include symfile.h.
2015-02-06 12:17:21 -08:00
Doug Evans
f176c4b57f Move clear_symtab_users, deduce_language_from_filename decls to better place.
gdb/ChangeLog:

	* symtab.h (clear_symtab_users, deduce_language_from_filename): Move
	* symfile.h (clear_symtab_users, deduce_language_from_filename): ...
	to here.
2015-02-06 11:32:01 -08:00
H.J. Lu
8dfef1bd76 Document -z text, -z notext and -z textoff
* ld.texinfo: Document -z text, -z notext and -z textoff.
	* emultempl/elf32.em (gld${EMULATION_NAME}_list_options): Add
	-z text, -z notext and -z textoff.
2015-02-06 10:01:35 -08:00