Commit Graph

84977 Commits

Author SHA1 Message Date
Alan Modra
1cb0b71f5a Add reloc sort test
* ld-powerpc/relocsort.s, * ld-powerpc/relocsort.d: New test.
	* ld-powerpc/powerpc.exp: Run it.
2015-08-27 23:21:21 +09:30
Alan Modra
2e57ce7b14 More fallout from "Allow symbol and label names to be enclosed in double quotes"
Some of the TC_START_LABEL implementations need to adjust the end of
the symbol, when a colon doesn't mean a label definition.  That means
they need access to nul_char both the restore the NUL location (it may
be a quote rather than a colon) and to store the new nul_char.  Others
need adjusting to step over a potential trailing quote.

	PR gas/18581
	* config/tc-aarch64.h (TC_START_LABEL): Redefine.
	* config/tc-arm.c (tc_start_label_without_colon): Delete params.
	Use input_line_pointer directly.
	* config/tc-arm.h (TC_START_LABEL): Redefine.
	(TC_START_LABEL_WITHOUT_COLON): Redefine.
	(tc_start_label_without_colon): Update prototype.
	* config/tc-bfin.c (bfin_start_label): Delete ptr param.  Check
	for NUL instead.
	* config/tc-bfin.h (bfin_start_label): Update prototype.
	(TC_START_LABEL): Redefine.
	* config/tc-d30v.h (TC_START_LABEL): Redefine.
	* config/tc-fr30.c (restore_colon): Rewrite.
	(fr30_is_colon_insn): Add nul_char param.  Return int.  Bump
	i_l_p over quote.  Update restore_colon calls.
	* config/tc-fr30.h (TC_START_LABEL): Redefine.
	(fr30_is_colon_insn): Update prototype.
	* config/tc-m32c.c (restore_colon, m32c_is_colon_insn): As above.
	* config/tc-m32c.h (TC_START_LABEL): Redefine.
	(m32c_is_colon_insn): Update prototype.
	* config/tc-m32r.h (TC_START_LABEL): Redefine.
	* config/tc-mep.h (TC_START_LABEL): Redefine.
	* config/tc-nds32.h (TC_START_LABEL): Redefine.
	* config/tc-tic54x.c (tic54x_start_label): Replace params with
	nul_char and next_char.  Step over trailing quote.
	* config/tc-tic54x.h (TC_START_LABEL_WITHOUT_COLON): Redefine.
	(tic54x_start_label): Update prototype.
	* read.c (TC_START_LABEL): Redefine.  Update invocation.
	(TC_START_LABEL_WITHOUT_COLON): Update invocation.
	* config/tc-nios2.c (s_nios2_set): Save initial input_line_pointer
	and restore if calling s_set.  Don't restore delim again.
2015-08-27 23:19:59 +09:30
Simon Marchi
f5cdf4989e Fix inverted statements in m88k_analyze_prologue
These two statements were inverted by mistake in commit "Replace some
xmalloc-family functions with XNEW-family ones".  It obviously doesn't
make sense to have them in this order, which is why I am pushing this as
obvious.

gdb/ChangeLog:

	* m88k-tdep.c (m88k_analyze_prologue): Fix inverted allocation
	statements.
2015-08-27 09:47:14 -04:00
Simon Marchi
5952e15788 Remove duplicate ChangeLog entry 2015-08-27 09:32:19 -04:00
Simon Marchi
fd2ae5d6a3 Document non-8-bits addressable memory support in NEWS
I think it would be a good idea to document that gdb now has (basic)
support to read/write memory on architectures with non-8-bits memory.
Hopefully somebody will see it and say "Hey!  We can now (more easily)
port GDB to our strange DSP that has 32-bits-addressable memory!" and do
it.

gdb/ChangeLog:

	* NEWS: Document support for non-8-bits addressable memory.
2015-08-27 09:30:00 -04:00
Pedro Alves
ab29043019 gdbserver/proc-service.c: bogus return value conversion
Building in C++ mode shows:

   int write_inferior_memory (CORE_ADDR memaddr, const unsigned char *myaddr,
       ^
  src/gdb/gdbserver/proc-service.c:93:64: error: invalid conversion from ‘int’ to ‘ps_err_e’ [-fpermissive]
     return write_inferior_memory ((unsigned long) addr, buf, size);
								  ^

It only works today by accident, write_inferior_memory does not return
a ps_err_e.

gdb/gdbserver/ChangeLog:
2015-08-27  Pedro Alves  <palves@redhat.com>

	* proc-service.c (ps_pdwrite): Return PS_ERR/PS_OK explicily.
2015-08-27 13:37:01 +01:00
Pedro Alves
14d8814778 gdb: Drop use of obsolete AC_TYPE_SIGNAL
Since we're using sighandler_t, nothing else refers to RETSIGTYPE in
gdb.

(Actually, given gdb/remote.c has been assuming signal handlers return
void for a long time, we could have gotten get rid of this even
without gnulib's sighandler_t.)

gdb/ChangeLog:
2015-08-27  Pedro Alves  <palves@redhat.com>

	* configure.ac: Remove AC_TYPE_SIGNAL call.
	* configure, config.in: Regenerate.
2015-08-27 13:26:23 +01:00
Pedro Alves
a40805d4a7 gdb: Use sighandler_t everywhere
This fixes 14 build errors like these in C++ mode:

 src/gdb/extension.c: In function ‘void install_sigint_handler(const signal_handler*)’:
 src/gdb/extension.c:698:41: error: invalid conversion from ‘void (*)()’ to ‘__sighandler_t {aka void (*)(int)}’ [-fpermissive]
    signal (SIGINT, handler_state->handler);
					  ^
 In file included from build-gnulib/import/signal.h:52:0,
		  from ../../src/gdb/extension.c:24:
 /usr/include/signal.h:102:23: error:   initializing argument 2 of ‘void (* signal(int, __sighandler_t))(int)’ [-fpermissive]
  extern __sighandler_t signal (int __sig, __sighandler_t __handler)
			^

Instead of this everywhere:

 -  RETSIGTYPE (*handle_sigint_for_compare) () = handle_sigint;
 +  RETSIGTYPE (*handle_sigint_for_compare) (int) = handle_sigint;

Use sighandler_t (a GNU extension).  That's OK to use unconditionaly
because gnulib's signal.h replacement makes sure that it is available.

gdb/ChangeLog:
2015-08-27  Pedro Alves  <palves@redhat.com>

	* cp-support.c (gdb_demangle): Use sighandler_t.  Remove cast.
	* extension-priv.h: Include signal.h.
	(struct signal_handler) <handler>: Change type to sighandler_t.
	* extension.c (install_gdb_sigint_handler): Use sighandler_t.
	* inflow.c (sigint_ours, sigquit_ours): Change type to
	sighandler_t.
	(child_terminal_inferior): Remove casts.
	(child_terminal_ours_1, new_tty): Use sighandler_t.  Remove casts.
	(osig): Change type to sighandler_t.
	* nto-procfs.c (ofunc): Change type to sighandler_t.
	(procfs_wait): Remove casts.
	* remote-m32r-sdi.c (m32r_wait, m32r_load): Use sighandler_t.
	* remote-sim.c (gdbsim_wait): Use sighandler_t.
	* utils.c (wait_to_die_with_timeout): Use sighandler_t.
2015-08-27 13:26:23 +01:00
Pedro Alves
0750520d89 Import the "signal-h" module from gnulib
This gives us a signal.h replacement that makes sure the sighandler_t
typedef (a GNU extension) is always available.  A follow up patch will
make use of this.

gdb/ChangeLog:
2015-08-27  Pedro Alves  <palves@redhat.com>

	* gnulib/update-gnulib.sh (IMPORTED_GNULIB_MODULES): Add signal-h.
	* gnulib/aclocal.m4: Renegerate.
	* gnulib/config.in: Renegerate.
	* gnulib/configure: Renegerate.
	* gnulib/import/Makefile.am: Update.
	* gnulib/import/Makefile.in: Regenerate.
	* gnulib/import/m4/gnulib-cache.m4: Update.
	* gnulib/import/m4/gnulib-comp.m4: Update.
	* gnulib/import/m4/signal_h.m4: New file.
	* gnulib/import/signal.in.h: New file.
2015-08-27 13:26:22 +01:00
Pedro Alves
7541ab0369 Fix ChangeLog entry date and mention gdb/18804 2015-08-27 13:09:39 +01:00
Pedro Alves
a5c0808e22 gdb: remove packet size limit
The remote packet buffer size is currently capped to 16384 mostly for
historical reasons, related to use of alloca.  Stop using alloca and
remove the limitation.

Tested on x86_64 Fedora 20.

gdb/ChangeLog:
2015-08-27  Pedro Alves  <palves@redhat.com>

	* remote.c (DEFAULT_MAX_MEMORY_PACKET_SIZE)
	(MIN_MEMORY_PACKET_SIZE): New.
	(MAX_REMOTE_PACKET_SIZE, MIN_REMOTE_PACKET_SIZE): Delete.
	(get_memory_packet_size): Adjust.  No longer limit the max packet
	size.
	(set_memory_packet_size): Adjust, and remove dead code.
	(remote_check_symbols): Use xmalloc and a cleanup instead of
	alloca.
	(remote_packet_size): No longer cap the packet size.
	(putpkt_binary): Use xmalloc and a cleanup instead of alloca.
2015-08-27 13:03:15 +01:00
Luis Machado
cdaec3f3e7 Mention language in compile error message
This patch improves one of the compile error messages by mentioning the
language.

Before - No compiler support for this language.
After  - No compiler support for language <language>.

gdb/ChangeLog:

2015-08-26  Luis Machado  <lgustavo@codesourcery.com>

	* compile/compile.c (compile_to_object): Mention language in
	error message.
2015-08-27 02:00:16 -03:00
Luis Machado
8ce7415353 Force language to C in gdb.compile/compile-ifunc.exp
Due to the lack of debug information in the binary, GDB is unable to figure
out what language is being used.  This may be a problem when doing remote
debugging and the binary stops at the entry point containing asm code.

In this case GDB will switch to asm as current language and will not switch
back to C when it reaches main, which in turn causes the compile feature check
to malfunction.

This is solved by forcing the language to C after reaching main.

gdb/testsuite/ChangeLog:

2015-08-26  Luis Machado  <lgustavo@codesourcery.com>

	* gdb.compile/compile-ifunc.exp (with_test_prefix): Force language
	to C.
2015-08-27 01:49:05 -03:00
Alan Modra
a40d44c44e Add missing pr reference 2015-08-27 11:00:01 +09:30
Alan Modra
6fc5bb5718 Don't sort ld -r output relocs on alpha
LITERAL/LITUSE relocs must be kept together.

	* elf64-alpha.c (elf64_alpha_sort_relocs_p): New function.
	(elf_backend_sort_relocs_p): Define.
2015-08-27 10:56:51 +09:30
Patrick Palka
e9756d52be Unset attach_flag when running a new process
We currently set attach_flag when attaching to a process, so we should
make sure to unset it when forking a new process.  Otherwise attach_flag
would remain set after forking, if the previous process associated with
the inferior was attached to.

gdb/ChangeLog:

	* target.c (target_pre_inferior): Unset attach_flag.

gdb/testsuite/ChangeLog:

	* gdb.base/run-after-attach.exp: New test file.
	* gdb.base/run-after-attach.c: New test file.
2015-08-26 20:50:43 -04:00
GDB Administrator
60f02a58bf Automatic date update in version.in 2015-08-27 00:00:08 +00:00
Simon Marchi
1dc7a62350 Fix gdbarch.c build error
I made a mistake while handling my previous patch.  A change in
gdbarch causes a build failure.

gdb/ChangeLog:

	* gdbarch.sh (append_name): Fix type in XRESIZEVEC.
	* gdbarch.c: Re-generate.
2015-08-26 17:31:47 -04:00
Simon Marchi
8d7493201c Replace some xmalloc-family functions with XNEW-family ones
This patch is part of the make-gdb-buildable-in-C++ effort.  The idea is
to change some calls to the xmalloc family of functions to calls to the
equivalents in the XNEW family.  This avoids adding an explicit cast, so
it keeps the code a bit more readable.  Some of them also map relatively
well to a C++ equivalent (XNEW (struct foo) -> new foo), so it will be
possible to do scripted replacements if needed.

I only changed calls that were obviously allocating memory for one or
multiple "objects".  Allocation of variable sizes (such as strings or
buffer handling) will be for later (and won't use XNEW).

  - xmalloc (sizeof (struct foo)) -> XNEW (struct foo)
  - xmalloc (num * sizeof (struct foo)) -> XNEWVEC (struct foo, num)
  - xcalloc (1, sizeof (struct foo)) -> XCNEW (struct foo)
  - xcalloc (num, sizeof (struct foo)) -> XCNEWVEC (struct foo, num)
  - xrealloc (p, num * sizeof (struct foo) -> XRESIZEVEC (struct foo, p, num)
  - obstack_alloc (ob, sizeof (struct foo)) -> XOBNEW (ob, struct foo)
  - obstack_alloc (ob, num * sizeof (struct foo)) -> XOBNEWVEC (ob, struct foo, num)
  - alloca (sizeof (struct foo)) -> XALLOCA (struct foo)
  - alloca (num * sizeof (struct foo)) -> XALLOCAVEC (struct foo, num)

Some instances of xmalloc followed by memset to zero the buffer were
replaced by XCNEW or XCNEWVEC.

I regtested on x86-64, Ubuntu 14.04, but the patch touches many
architecture-specific files.  For those I'll have to rely on the
buildbot or people complaining that I broke their gdb.

gdb/ChangeLog:

	* aarch64-linux-nat.c (aarch64_add_process): Likewise.
	* aarch64-tdep.c (aarch64_gdbarch_init): Likewise.
	* ada-exp.y (write_ambiguous_var): Likewise.
	* ada-lang.c (resolve_subexp): Likewise.
	(user_select_syms): Likewise.
	(assign_aggregate): Likewise.
	(ada_evaluate_subexp): Likewise.
	(cache_symbol): Likewise.
	* addrmap.c (allocate_key): Likewise.
	(addrmap_create_mutable): Likewise.
	* aix-thread.c (sync_threadlists): Likewise.
	* alpha-tdep.c (alpha_push_dummy_call): Likewise.
	(alpha_gdbarch_init): Likewise.
	* amd64-windows-tdep.c (amd64_windows_push_arguments): Likewise.
	* arm-linux-nat.c (arm_linux_add_process): Likewise.
	* arm-linux-tdep.c (arm_linux_displaced_step_copy_insn): Likewise.
	* arm-tdep.c (push_stack_item): Likewise.
	(arm_displaced_step_copy_insn): Likewise.
	(arm_gdbarch_init): Likewise.
	(_initialize_arm_tdep): Likewise.
	* avr-tdep.c (push_stack_item): Likewise.
	* ax-general.c (new_agent_expr): Likewise.
	* block.c (block_initialize_namespace): Likewise.
	* breakpoint.c (alloc_counted_command_line): Likewise.
	(update_dprintf_command_list): Likewise.
	(parse_breakpoint_sals): Likewise.
	(decode_static_tracepoint_spec): Likewise.
	(until_break_command): Likewise.
	(clear_command): Likewise.
	(update_global_location_list): Likewise.
	(get_breakpoint_objfile_data) Likewise.
	* btrace.c (ftrace_new_function): Likewise.
	(btrace_set_insn_history): Likewise.
	(btrace_set_call_history): Likewise.
	* buildsym.c (add_symbol_to_list): Likewise.
	(record_pending_block): Likewise.
	(start_subfile): Likewise.
	(start_buildsym_compunit): Likewise.
	(push_subfile): Likewise.
	(end_symtab_get_static_block): Likewise.
	(buildsym_init): Likewise.
	* cli/cli-cmds.c (source_command): Likewise.
	* cli/cli-decode.c (add_cmd): Likewise.
	* cli/cli-script.c (build_command_line): Likewise.
	(setup_user_args): Likewise.
	(realloc_body_list): Likewise.
	(process_next_line): Likewise.
	(copy_command_lines): Likewise.
	* cli/cli-setshow.c (do_set_command): Likewise.
	* coff-pe-read.c (read_pe_exported_syms): Likewise.
	* coffread.c (coff_locate_sections): Likewise.
	(coff_symtab_read): Likewise.
	(coff_read_struct_type): Likewise.
	* common/cleanups.c (make_my_cleanup2): Likewise.
	* common/common-exceptions.c (throw_it): Likewise.
	* common/filestuff.c (make_cleanup_close): Likewise.
	* common/format.c (parse_format_string): Likewise.
	* common/queue.h (DEFINE_QUEUE_P): Likewise.
	* compile/compile-object-load.c (munmap_list_add): Likewise.
	(compile_object_load): Likewise.
	* compile/compile-object-run.c (compile_object_run): Likewise.
	* compile/compile.c (append_args): Likewise.
	* corefile.c (specify_exec_file_hook): Likewise.
	* cp-support.c (make_symbol_overload_list): Likewise.
	* cris-tdep.c (push_stack_item): Likewise.
	(cris_gdbarch_init): Likewise.
	* ctf.c (ctf_trace_file_writer_new): Likewise.
	* dbxread.c (init_header_files): Likewise.
	(add_new_header_file): Likewise.
	(init_bincl_list): Likewise.
	(dbx_end_psymtab): Likewise.
	(start_psymtab): Likewise.
	(dbx_end_psymtab): Likewise.
	* dcache.c (dcache_init): Likewise.
	* dictionary.c (dict_create_hashed): Likewise.
	(dict_create_hashed_expandable): Likewise.
	(dict_create_linear): Likewise.
	(dict_create_linear_expandable): Likewise.
	* dtrace-probe.c (dtrace_process_dof_probe): Likewise.
	* dummy-frame.c (register_dummy_frame_dtor): Likewise.
	* dwarf2-frame-tailcall.c (cache_new_ref1): Likewise.
	* dwarf2-frame.c (dwarf2_build_frame_info): Likewise.
	(decode_frame_entry_1): Likewise.
	* dwarf2expr.c (new_dwarf_expr_context): Likewise.
	* dwarf2loc.c (dwarf2_compile_expr_to_ax): Likewise.
	* dwarf2read.c (dwarf2_has_info): Likewise.
	(create_signatured_type_table_from_index): Likewise.
	(dwarf2_read_index): Likewise.
	(dw2_get_file_names_reader): Likewise.
	(create_all_type_units): Likewise.
	(read_cutu_die_from_dwo): Likewise.
	(init_tu_and_read_dwo_dies): Likewise.
	(init_cutu_and_read_dies): Likewise.
	(create_all_comp_units): Likewise.
	(queue_comp_unit): Likewise.
	(inherit_abstract_dies): Likewise.
	(read_call_site_scope): Likewise.
	(dwarf2_add_field): Likewise.
	(dwarf2_add_typedef): Likewise.
	(dwarf2_add_member_fn): Likewise.
	(attr_to_dynamic_prop): Likewise.
	(abbrev_table_alloc_abbrev): Likewise.
	(abbrev_table_read_table): Likewise.
	(add_include_dir): Likewise.
	(add_file_name): Likewise.
	(dwarf_decode_line_header): Likewise.
	(dwarf2_const_value_attr): Likewise.
	(dwarf_alloc_block): Likewise.
	(parse_macro_definition): Likewise.
	(set_die_type): Likewise.
	(write_psymtabs_to_index): Likewise.
	(create_cus_from_index): Likewise.
	(dwarf2_create_include_psymtab): Likewise.
	(process_psymtab_comp_unit_reader): Likewise.
	(build_type_psymtab_dependencies): Likewise.
	(read_comp_units_from_section): Likewise.
	(compute_compunit_symtab_includes): Likewise.
	(create_dwo_unit_in_dwp_v1): Likewise.
	(create_dwo_unit_in_dwp_v2): Likewise.
	(read_func_scope): Likewise.
	(process_structure_scope): Likewise.
	(mark_common_block_symbol_computed): Likewise.
	(load_partial_dies): Likewise.
	(dwarf2_symbol_mark_computed): Likewise.
	* elfread.c (elf_symfile_segments): Likewise.
	(elf_read_minimal_symbols): Likewise.
	* environ.c (make_environ): Likewise.
	* eval.c (evaluate_subexp_standard): Likewise.
	* event-loop.c (create_file_handler): Likewise.
	(create_async_signal_handler): Likewise.
	(create_async_event_handler): Likewise.
	(create_timer): Likewise.
	* exec.c (build_section_table): Likewise.
	* fbsd-nat.c (fbsd_remember_child): Likewise.
	* fork-child.c (fork_inferior): Likewise.
	* frv-tdep.c (new_variant): Likewise.
	* gdbarch.sh (gdbarch_alloc): Likewise.
	(append_name): Likewise.
	* gdbtypes.c (rank_function): Likewise.
	(copy_type_recursive): Likewise.
	(add_dyn_prop): Likewise.
	* gnu-nat.c (make_proc): Likewise.
	(make_inf): Likewise.
	(gnu_write_inferior): Likewise.
	* gnu-v3-abi.c (build_gdb_vtable_type): Likewise.
	(build_std_type_info_type): Likewise.
	* guile/scm-param.c (compute_enum_list): Likewise.
	* guile/scm-utils.c (gdbscm_parse_function_args): Likewise.
	* guile/scm-value.c (gdbscm_value_call): Likewise.
	* h8300-tdep.c (h8300_gdbarch_init): Likewise.
	* hppa-tdep.c (hppa_init_objfile_priv_data): Likewise.
	(read_unwind_info): Likewise.
	* ia64-tdep.c (ia64_gdbarch_init): Likewise.
	* infcall.c (dummy_frame_context_saver_setup): Likewise.
	(call_function_by_hand_dummy): Likewise.
	* infcmd.c (step_once): Likewise.
	(finish_forward): Likewise.
	(attach_command): Likewise.
	(notice_new_inferior): Likewise.
	* inferior.c (add_inferior_silent): Likewise.
	* infrun.c (add_displaced_stepping_state): Likewise.
	(save_infcall_control_state): Likewise.
	(save_inferior_ptid): Likewise.
	(_initialize_infrun): Likewise.
	* jit.c (bfd_open_from_target_memory): Likewise.
	(jit_gdbarch_data_init): Likewise.
	* language.c (add_language): Likewise.
	* linespec.c (decode_line_2): Likewise.
	* linux-nat.c (add_to_pid_list): Likewise.
	(add_initial_lwp): Likewise.
	* linux-thread-db.c (add_thread_db_info): Likewise.
	(record_thread): Likewise.
	(info_auto_load_libthread_db): Likewise.
	* m32c-tdep.c (m32c_gdbarch_init): Likewise.
	* m68hc11-tdep.c (m68hc11_gdbarch_init): Likewise.
	* m68k-tdep.c (m68k_gdbarch_init): Likewise.
	* m88k-tdep.c (m88k_analyze_prologue): Likewise.
	* macrocmd.c (macro_define_command): Likewise.
	* macroexp.c (gather_arguments): Likewise.
	* macroscope.c (sal_macro_scope): Likewise.
	* macrotab.c (new_macro_table): Likewise.
	* mdebugread.c (push_parse_stack): Likewise.
	(parse_partial_symbols): Likewise.
	(parse_symbol): Likewise.
	(psymtab_to_symtab_1): Likewise.
	(new_block): Likewise.
	(new_psymtab): Likewise.
	(mdebug_build_psymtabs): Likewise.
	(add_pending): Likewise.
	(elfmdebug_build_psymtabs): Likewise.
	* mep-tdep.c (mep_gdbarch_init): Likewise.
	* mi/mi-main.c (mi_execute_command): Likewise.
	* mi/mi-parse.c (mi_parse_argv): Likewise.
	* minidebug.c (lzma_open): Likewise.
	* minsyms.c (terminate_minimal_symbol_table): Likewise.
	* mips-linux-nat.c (mips_linux_insert_watchpoint): Likewise.
	* mips-tdep.c (mips_gdbarch_init): Likewise.
	* mn10300-tdep.c (mn10300_gdbarch_init): Likewise.
	* msp430-tdep.c (msp430_gdbarch_init): Likewise.
	* mt-tdep.c (mt_registers_info): Likewise.
	* nat/aarch64-linux.c (aarch64_linux_new_thread): Likewise.
	* nat/linux-btrace.c (linux_enable_bts): Likewise.
	(linux_enable_pt): Likewise.
	* nat/linux-osdata.c (linux_xfer_osdata_processes): Likewise.
	(linux_xfer_osdata_processgroups): Likewise.
	* nios2-tdep.c (nios2_gdbarch_init): Likewise.
	* nto-procfs.c (procfs_meminfo): Likewise.
	* objc-lang.c (start_msglist): Likewise.
	(selectors_info): Likewise.
	(classes_info): Likewise.
	(find_methods): Likewise.
	* objfiles.c (allocate_objfile): Likewise.
	(update_section_map): Likewise.
	* osabi.c (gdbarch_register_osabi): Likewise.
	(gdbarch_register_osabi_sniffer): Likewise.
	* parse.c (start_arglist): Likewise.
	* ppc-linux-nat.c (hwdebug_find_thread_points_by_tid): Likewise.
	(hwdebug_insert_point): Likewise.
	* printcmd.c (display_command): Likewise.
	(ui_printf): Likewise.
	* procfs.c (create_procinfo): Likewise.
	(load_syscalls): Likewise.
	(proc_get_LDT_entry): Likewise.
	(proc_update_threads): Likewise.
	* prologue-value.c (make_pv_area): Likewise.
	(pv_area_store): Likewise.
	* psymtab.c (extend_psymbol_list): Likewise.
	(init_psymbol_list): Likewise.
	(allocate_psymtab): Likewise.
	* python/py-inferior.c (add_thread_object): Likewise.
	* python/py-param.c (compute_enum_values): Likewise.
	* python/py-value.c (valpy_call): Likewise.
	* python/py-varobj.c (py_varobj_iter_next): Likewise.
	* python/python.c (ensure_python_env): Likewise.
	* record-btrace.c (record_btrace_start_replaying): Likewise.
	* record-full.c (record_full_reg_alloc): Likewise.
	(record_full_mem_alloc): Likewise.
	(record_full_end_alloc): Likewise.
	(record_full_core_xfer_partial): Likewise.
	* regcache.c (get_thread_arch_aspace_regcache): Likewise.
	* remote-fileio.c (remote_fileio_init_fd_map): Likewise.
	* remote-notif.c (remote_notif_state_allocate): Likewise.
	* remote.c (demand_private_info): Likewise.
	(remote_notif_stop_alloc_reply): Likewise.
	(remote_enable_btrace): Likewise.
	* reverse.c (save_bookmark_command): Likewise.
	* rl78-tdep.c (rl78_gdbarch_init): Likewise.
	* rx-tdep.c (rx_gdbarch_init): Likewise.
	* s390-linux-nat.c (s390_insert_watchpoint): Likewise.
	* ser-go32.c (dos_get_tty_state): Likewise.
	(dos_copy_tty_state): Likewise.
	* ser-mingw.c (ser_windows_open): Likewise.
	(ser_console_wait_handle): Likewise.
	(ser_console_get_tty_state): Likewise.
	(make_pipe_state): Likewise.
	(net_windows_open): Likewise.
	* ser-unix.c (hardwire_get_tty_state): Likewise.
	(hardwire_copy_tty_state): Likewise.
	* solib-aix.c (solib_aix_new_lm_info): Likewise.
	* solib-dsbt.c (dsbt_current_sos): Likewise.
	(dsbt_relocate_main_executable): Likewise.
	* solib-frv.c (frv_current_sos): Likewise.
	(frv_relocate_main_executable): Likewise.
	* solib-spu.c (spu_bfd_fopen): Likewise.
	* solib-svr4.c (lm_info_read): Likewise.
	(svr4_copy_library_list): Likewise.
	(svr4_default_sos): Likewise.
	* source.c (find_source_lines): Likewise.
	(line_info): Likewise.
	(add_substitute_path_rule): Likewise.
	* spu-linux-nat.c (spu_bfd_open): Likewise.
	* spu-tdep.c (info_spu_dma_cmdlist): Likewise.
	* stabsread.c (dbx_lookup_type): Likewise.
	(read_type): Likewise.
	(read_member_functions): Likewise.
	(read_struct_fields): Likewise.
	(read_baseclasses): Likewise.
	(read_args): Likewise.
	(_initialize_stabsread): Likewise.
	* stack.c (func_command): Likewise.
	* stap-probe.c (handle_stap_probe): Likewise.
	* symfile.c (addrs_section_sort): Likewise.
	(addr_info_make_relative): Likewise.
	(load_section_callback): Likewise.
	(add_symbol_file_command): Likewise.
	(init_filename_language_table): Likewise.
	* symtab.c (create_filename_seen_cache): Likewise.
	(sort_search_symbols_remove_dups): Likewise.
	(search_symbols): Likewise.
	* target.c (make_cleanup_restore_target_terminal): Likewise.
	* thread.c (new_thread): Likewise.
	(enable_thread_stack_temporaries): Likewise.
	(make_cleanup_restore_current_thread): Likewise.
	(thread_apply_all_command): Likewise.
	* tic6x-tdep.c (tic6x_gdbarch_init): Likewise.
	* top.c (gdb_readline_wrapper): Likewise.
	* tracefile-tfile.c (tfile_trace_file_writer_new): Likewise.
	* tracepoint.c (trace_find_line_command): Likewise.
	(all_tracepoint_actions_and_cleanup): Likewise.
	(make_cleanup_restore_current_traceframe): Likewise.
	(get_uploaded_tp): Likewise.
	(get_uploaded_tsv): Likewise.
	* tui/tui-data.c (tui_alloc_generic_win_info): Likewise.
	(tui_alloc_win_info): Likewise.
	(tui_alloc_content): Likewise.
	(tui_add_content_elements): Likewise.
	* tui/tui-disasm.c (tui_find_disassembly_address): Likewise.
	(tui_set_disassem_content): Likewise.
	* ui-file.c (ui_file_new): Likewise.
	(stdio_file_new): Likewise.
	(tee_file_new): Likewise.
	* utils.c (make_cleanup_restore_integer): Likewise.
	(add_internal_problem_command): Likewise.
	* v850-tdep.c (v850_gdbarch_init): Likewise.
	* valops.c (find_oload_champ): Likewise.
	* value.c (allocate_value_lazy): Likewise.
	(record_latest_value): Likewise.
	(create_internalvar): Likewise.
	* varobj.c (install_variable): Likewise.
	(new_variable): Likewise.
	(new_root_variable): Likewise.
	(cppush): Likewise.
	(_initialize_varobj): Likewise.
	* windows-nat.c (windows_make_so): Likewise.
	* x86-nat.c (x86_add_process): Likewise.
	* xcoffread.c (arrange_linetable): Likewise.
	(allocate_include_entry): Likewise.
	(process_linenos): Likewise.
	(SYMBOL_DUP): Likewise.
	(xcoff_start_psymtab): Likewise.
	(xcoff_end_psymtab): Likewise.
	* xml-support.c (gdb_xml_parse_attr_ulongest): Likewise.
	* xtensa-tdep.c (xtensa_register_type): Likewise.
	* gdbarch.c: Regenerate.
	* gdbarch.h: Regenerate.

gdb/gdbserver/ChangeLog:

	* ax.c (gdb_parse_agent_expr): Likewise.
	(compile_bytecodes): Likewise.
	* dll.c (loaded_dll): Likewise.
	* event-loop.c (append_callback_event): Likewise.
	(create_file_handler): Likewise.
	(create_file_event): Likewise.
	* hostio.c (handle_open): Likewise.
	* inferiors.c (add_thread): Likewise.
	(add_process): Likewise.
	* linux-aarch64-low.c (aarch64_linux_new_process): Likewise.
	* linux-arm-low.c (arm_new_process): Likewise.
	(arm_new_thread): Likewise.
	* linux-low.c (add_to_pid_list): Likewise.
	(linux_add_process): Likewise.
	(handle_extended_wait): Likewise.
	(add_lwp): Likewise.
	(enqueue_one_deferred_signal): Likewise.
	(enqueue_pending_signal): Likewise.
	(linux_resume_one_lwp_throw): Likewise.
	(linux_resume_one_thread): Likewise.
	(linux_read_memory): Likewise.
	(linux_write_memory): Likewise.
	* linux-mips-low.c (mips_linux_new_process): Likewise.
	(mips_linux_new_thread): Likewise.
	(mips_add_watchpoint): Likewise.
	* linux-x86-low.c (initialize_low_arch): Likewise.
	* lynx-low.c (lynx_add_process): Likewise.
	* mem-break.c (set_raw_breakpoint_at): Likewise.
	(set_breakpoint): Likewise.
	(add_condition_to_breakpoint): Likewise.
	(add_commands_to_breakpoint): Likewise.
	(clone_agent_expr): Likewise.
	(clone_one_breakpoint): Likewise.
	* regcache.c (new_register_cache): Likewise.
	* remote-utils.c (look_up_one_symbol): Likewise.
	* server.c (queue_stop_reply): Likewise.
	(start_inferior): Likewise.
	(queue_stop_reply_callback): Likewise.
	(handle_target_event): Likewise.
	* spu-low.c (fetch_ppc_memory): Likewise.
	(store_ppc_memory): Likewise.
	* target.c (set_target_ops): Likewise.
	* thread-db.c (thread_db_load_search): Likewise.
	(try_thread_db_load_1): Likewise.
	* tracepoint.c (add_tracepoint): Likewise.
	(add_tracepoint_action): Likewise.
	(create_trace_state_variable): Likewise.
	(cmd_qtdpsrc): Likewise.
	(cmd_qtro): Likewise.
	(add_while_stepping_state): Likewise.
	* win32-low.c (child_add_thread): Likewise.
	(get_image_name): Likewise.
2015-08-26 17:18:12 -04:00
Don Breazeal
17d8546e60 Fix native follow-exec-mode "new"
This patch fixes a segmentation fault in native GDB when
handling an exec event with follow-exec-mode set to "new".

The stack trace from the segfault was this:

 0  0x0000000000669594 in gdbarch_data (gdbarch=0x0, data=0x20da7a0)
    at /scratch/dbreazea/sandbox/exec-nat/binutils-gdb/gdb/gdbarch.c:4847
 1  0x00000000004d430e in get_remote_arch_state ()
    at /scratch/dbreazea/sandbox/exec-nat/binutils-gdb/gdb/remote.c:603
 2  0x00000000004d431e in get_remote_state ()
    at /scratch/dbreazea/sandbox/exec-nat/binutils-gdb/gdb/remote.c:616
 3  0x00000000004dda8b in discard_pending_stop_replies (inf=0x217c710)
    at /scratch/dbreazea/sandbox/exec-nat/binutils-gdb/gdb/remote.c:5775
 4  0x00000000006a5928 in observer_inferior_exit_notification_stub (
    data=0x4dda7a <discard_pending_stop_replies>, args_data=0x7fff12c258f0)
    at ./observer.inc:1137
 5  0x00000000006a419a in generic_observer_notify (subject=0x21dfbe0,
    args=0x7fff12c258f0)
    at /scratch/dbreazea/sandbox/exec-nat/binutils-gdb/gdb/observer.c:167
 6  0x00000000006a59ba in observer_notify_inferior_exit (inf=0x217c710)
    at ./observer.inc:1162
 7  0x00000000007981d5 in exit_inferior_1 (inftoex=0x217c710, silent=1)
    at /scratch/dbreazea/sandbox/exec-nat/binutils-gdb/gdb/inferior.c:244
 8  0x00000000007982f2 in exit_inferior_num_silent (num=1)
    at /scratch/dbreazea/sandbox/exec-nat/binutils-gdb/gdb/inferior.c:286
 9  0x000000000062f93d in follow_exec (ptid=...,
    execd_pathname=0x7fff12c259a0 "/scratch/dbreazea/sandbox/exec-nat/build/gdb/testsuite/gdb.base/execd-prog")
    at /scratch/dbreazea/sandbox/exec-nat/binutils-gdb/gdb/infrun.c:1195

In follow_exec we were creating a new inferior for the execd program,
as required by the exec mode, but we were doing it before calling
exit_inferior_num_silent on the original inferior.  So on entry to
exit_inferior_num_silent we had two inferiors with the same ptid.

In the calls made by exit_inferior_num_silent, the current inferior
is temporarily saved and replaced in order to make use of functions
that only operate on the current inferior (for example, in
do_all_continuations, called while deleting the threads of the original
inferior).  When we restored the original inferior, we just took the
first inferior that matched the ptid of the original and got the new
(wrong) one.  It hadn't been initialized yet and had no gdbarch
pointer, and GDB segfaulted.

The fix for that is to call exit_inferior_num_silent before adding the new
inferior, so that we never have two inferiors with the same ptid.  Then
exit_inferior_num_silent uses the original inferior as the current inferior
throughout, and can find a valid gdbarch pointer.

Once we have finished with the exit of the old inferior and added the
new one, we need to create a new thread for the new inferior.  In the
function that called follow_exec, handle_inferior_event_1,
ecs->event_thread now points to the thread that was deleted with the
exit of the original inferior.  To remedy this we create the new thread,
and once we return from follow_exec we reset ecs->event_thread.

Note that we are guaranteed that we can reset ecs->event_thread
safely using inferior_thread because we have set the current
inferior in follow_exec, and inferior_ptid was set by the call
to context_switch at the beginning of exec event handling.

gdb/ChangeLog:

	* infrun.c (follow_exec): Re-order operations for
	handling follow-exec-mode "new".
	(handle_inferior_event_1): Assign ecs->event_thread
	to the current thread.
	* remote.c (get_remote_arch_state): Add an assertion.
2015-08-26 14:07:25 -07:00
Don Breazeal
8d37573b43 New test for follow-exec-mode
This patch implements a new GDB test for follow-exec-mode.  Although
there is a GDB test for debugging across an exec, there is no test for
follow-exec-mode.  This test is derived from gdb.base/foll-exec.exp,
and re-uses execd-prog.c as the program to exec.

The following behavior is tested:

follow-exec-mode == "same"
 - 'next' over the exec, check for one inferior
 - 'continue' past the exec to a breakpoint, check for one inferior
 - after the exec, use a 'run' command to run the current binary
follow-exec-mode == "new"
 - 'next' over the exec, check for two inferiors
 - 'continue' past the exec to a breakpoint, check for two inferiors
 - after the exec, use a 'run' command to run the current binary
 - after the exec, use the 'inferior' command to switch inferiors,
   then use a 'run' command to run the current binary

Note that single-step breakpoints do not survive across an exec.
There has to be a breakpoint in the execed program in order for
it to stop right after the exec.

gdb/testsuite/ChangeLog:

	* gdb.base/foll-exec-2.c: New test program.
	* gdb.base/foll-exec-2.exp: New test.
2015-08-26 13:38:40 -07:00
Pedro Alves
ba49e44bdc gdb: Add Markus Metzger as btrace maintainer
gdb/ChangeLog:
2015-08-26  Pedro Alves  <palves@redhat.com>

	* MAINTAINERS: Add Markus Metzger as btrace maintainer.
2015-08-26 17:50:02 +01:00
Alan Modra
0e28778672 Use stable sort for ld -r relocs
A number of targets emit multiple relocs at a given r_offset, and
depend on those relocs staying in their original order.

	PR 18867
	* elflink.c (cmp_ext32l_r_offset, cmp_ext32b_r_offset): Delete.
	(cmp_ext64l_r_offset, cmp_ext64b_r_offset): Delete.
	(ext32l_r_offset, ext32b_r_offset, ext64l_r_offset, ext64b_r_offset):
	New functions.
	(elf_link_adjust_relocs): Use an insertion sort to sort relocs.
2015-08-26 23:34:10 +09:30
Matthew Fortune
c97c330ba8 Select MIPS ABi based upon abiflags rather than e_flags.
bfd	PR ld/18401
	* elfxx-mips.c (bfd_mips_isa_ext_mach): New function: Converts an
	ISA value to a bfd machine number.
	(bfd_mips_isa_ext): Update the ISA level and revision if
	necessary.  Use mips_mach_extends_p to decide if the ISA extension
	needs to be set.
	(_bfd_mips_elf_merge_private_bfd_data): Allow the ISA extension to
	be inferred from the ABI setting.  Set the ISA level from the
	maximum of the incoming and outgoing ISA levels.

tests
	* ld-mips-elf/mips-elf-flags.exp: Add more ISA conflict tests.
2015-08-26 14:42:56 +01:00
Alan Modra
2d011dc169 Fallout from "Allow symbol and label names to be enclosed in double quotes"
PR gas/18581
	* config/tc-mn10200.c (md_assemble <mdr>): Move restore_line_pointer
	call to where input line used to be restored.
	* config/tc-mn10300.c (md_assemble <usp>): Remove redundant input
	line restore.
	* config/tc-tilepro.c (parse_reg_expression): Add regname var.
2015-08-26 23:07:24 +09:30
Nick Clifton
2a7f4fa91f Add asprintf to the list of functions whose decls are checked at configure time.
PR gas/18842
	* configure.ac (AS_CHECK_DECLS): Add asprintf.
	* configure: Regenerate.
	* config.in: Regenerate.
2015-08-26 10:56:26 +01:00
Cary Coutant
7c61d651fd Fix problem where script specified both address and region for a section.
If a script specifies both address and region for an output section
declaration, gold ignores the region specification. This can lead to
bogus "moves backward" errors. This patch fixes gold so that if a
section specifies both address and region, it will place the section
at the specified address in the region, and update the location counter
within the region.

gold/
	PR gold/18847
	* script-sections.cc (Memory_region::set_address): New method.
	(Script_sections::find_memory_region): Add explicit_only parameter.
	(Output_section_definition::set_section_addresses): Handle case where
	script specifies both address and vma region.
	* script-sections.h (Script_sections::find_memory_region): Add
	explicit_only parameter.
2015-08-26 00:03:04 -07:00
Cary Coutant
4bfacfd359 Fix --no-as-needed when shared library is listed twice on the command line.
When a shared library is listed twice on the command line, the linker
ignores the second mention. If the first mention is in the scope of
an --as-needed option, and the second one is under the scope of a
--no-as-needed option, the --no-as-needed should take effect, but
doesn't.  This patch keeps track of the objects we've already seen,
and updates the --as-needed flag so that if a shared object is ever
seen with --no-as-needed, it will be marked as such.

gold/
	PR gold/18859
	* object.cc (Input_objects::add_object): Store objects in a map,
	indexed by soname; update as-needed flag when necessary.
	* object.h (Object::clear_as_needed): New method.
	(Input_objects::so_names_): Change from set to map.
2015-08-25 18:39:20 -07:00
Cary Coutant
1757d35c8a Fix internal error in gold when script uses section address in assignment.
When processing assignment expressions in a linker script, gold processes
absolute assignments early, but when one of those assignments involves the
address of a section that has not yet been finalized, we get an internal
error in address. This patch fixes the problem by gracefully returning
from expression evaluation even if the address is not yet valid, and
deferring the assignment in such a case.

gold/
	PR gold/14746
	* expression.cc (Expression::Expression_eval_info): Add
	is_valid_pointer field.
	(Expression::eval_maybe_dot): Add is_valid_pointer parameter.
	Adjust all callers.
	(Addr_expression::value_from_output_section): Check whether address
	is valid.
	* script.cc (Symbol_assignment::set_if_absolute): Defer assignment
	if evaluation failed due to address that is not yet valid.
	* script.h: (Expression::eval_maybe_dot): Add is_valid_pointer
	parameter.
2015-08-25 18:11:19 -07:00
Cary Coutant
3ac0a36c29 Fix regression introduced by fix for PR 18703.
When a user object overrides a versioned definition in a shared object,
it's possible to trigger an internal error because the versioned
definition we saw didn't override the unversioned definition. This
was introduced by the fix for PR 18703. This patch fixes the problem
by reordering the tests so that we do not check ret->is_default()
until we're confident that the symbol is in fact versioned.

gold/
	PR gold/18866
	PR gold/18703
	* symtab.cc (Symbol_table): Reorder conditions to avoid internal error.
2015-08-25 17:53:53 -07:00
GDB Administrator
dc72bf948a Automatic date update in version.in 2015-08-26 00:00:07 +00:00
Nick Clifton
16ad13eca4 Replace assertions with warning messages about ELF binaries containing multiple symbol tables.
PR binutils/18854
	* elf.c (bfd_section_from_shdr): Replace assertions with warnings
	about multiple symbol tables.
2015-08-25 17:48:20 +01:00
Simon Dardis
cdbfb88617 Update MIPS tests for test failures on some configurations.
* gas/mips/micromips32-move.d: Update expected disassembly.
	* gas/mips/move.d: Likewise.
	* gas/mips/move.s: Fix for some MIPS configurations.
2015-08-25 17:06:49 +01:00
Pedro Alves
abc56d60aa remote: allow aborting long operations (e.g., file transfers)
Currently, when remote debugging, if you type Ctrl-C just while the
target stopped for an internal event, and GDB is busy doing something
that takes a while (e.g., fetching chunks of a shared library off of
the target, with vFile, to process ELF headers and debug info), the
Ctrl-C is lost.

The patch hooks up the QUIT macro to a new target method that lets the
target react to the double-Ctrl-C before the event loop is reached,
which allows reacting to a double-Ctrl-C even when GDB is busy doing
some long operation and not waiting for a stop reply.  That end result
is:

 (gdb) c
 Continuing.
 ^C
 ^C
 Interrupted while waiting for the program.
 Give up waiting? (y or n) y
 Quit
 (gdb) info threads
   Id   Target Id         Frame
 * 1    Thread 11673      0x00007ffff7deb240 in _dl_debug_state () from target:/lib64/ld-linux-x86-64.so.2
 (gdb)

If, however, GDB is waiting for a stop reply (because the target has
been resumed, with e.g., vCont;c), but the target isn't responding, we
now get:

 (gdb) c
 Continuing.
 ^C
 ^C
 The target is not responding to interrupt requests.
 Stop debugging it? (y or n) y
 Disconnected from target.
 (gdb) info threads
 No threads.

This offers to disconnect, because when we're waiting for a stop
reply, there's nothing else we can send the target other than an
interrupt request.  And if that doesn't work, there's nothing else we
can do.

The Ctrl-C is presently lost because until we get to a user-visible
stop, the SIGINT handler that is installed is the one that forwards
the interrupt to the remote side, with the \003 "packet" [1].  But,
gdbserver ignores an interrupt request if the program is stopped.
Still, even if it didn't, the server can only report back a
stop-because-of-SIGINT when the program is next resumed.  And it may
take a while to actually re-resume the target.

[1] - In the old sync days, the remote target would react to a
double-Ctrl-C by asking users whether they wanted to give up waiting
and disconnect.  The code is still there, but it it isn't reacheable
on most hosts, which support serial connections in async mode
(probably only DJGPP doesn't).  Even then, in sync mode, remote.c's
SIGINT handler is only installed while the target is resumed, and is
removed as soon as the target sends back a stop reply.  That means
that a Ctrl-C just while GDB is processing an internal event can end
up with an odd "Quit" at the prompt instead of "Program stopped by
SIGINT".  In contrast, in async mode, remote.c's SIGINT handler is set
up as long as target_terminal_inferior or
target_terminal_ours_for_output are in effect (IOW, until we get a
user-visible stop and call target_terminal_ours), so the user
shouldn't get back a spurious Quit.  However, it's still desirable to
be able to interrupt a long-running GDB operation, if GDB takes a
while to re-resume the target or get back to the event loop.

Tested on x86_64 Fedora 20.

gdb/ChangeLog:
2015-08-24  Pedro Alves  <palves@redhat.com>

	* defs.h (maybe_quit): Declare.
	(QUIT): Now calls maybe_quit.
	* event-loop.c (clear_async_signal_handler)
	(async_signal_handler_is_marked): New functions.
	* event-loop.h (async_signal_handler_is_marked)
	(clear_async_signal_handler): New declarations.
	* remote.c (remote_check_pending_interrupt): New function.
	(interrupt_query): Use make_cleanup_restore_target_terminal.  No
	longer check whether the target is async.  If waiting for a stop
	reply, and a Ctrl-C as been sent to the target, offer to
	disconnect, and throw TARGET_CLOSE_ERROR instead of a quit.
	Otherwise do not disconnect and throw a quit.
	(_initialize_remote): Install remote_check_pending_interrupt as
	to_check_pending_interrupt.
	* target.c (target_check_pending_interrupt): New function.
	* target.h (struct target_ops) <to_check_pending_interrupt>: New
	field.
	(target_check_pending_interrupt): New declaration.
	* utils.c (maybe_quit): New function.
	* target-delegates.c: Regenerate.
2015-08-25 16:12:11 +01:00
Jose E. Marchesi
3807431192 Support for the sparc %pmcdper privileged register.
opcodes/ChangeLog:

2015-08-25  Jose E. Marchesi  <jose.marchesi@oracle.com>

	* sparc-dis.c (print_insn_sparc): Handle the privileged register
	%pmcdper.

gas/ChangeLog:

2015-08-25  Jose E. Marchesi  <jose.marchesi@oracle.com>

	* config/tc-sparc.c (priv_reg_table): New privileged register
	%pmcdper.

gas/testsuite/ChangeLog:

2015-08-25  Jose E. Marchesi  <jose.marchesi@oracle.com>

	* gas/sparc/wrpr.s: Test writing to the privileged %pmcdper
	register.
	* gas/sparc/wrpr.d: ...and the expected result.
	* gas/sparc/rdpr.s: Test reading from the privileged %pmcdper
	register.
	* gas/sparc/rdpr.d: ...and the expected result.
2015-08-25 17:16:34 +02:00
Yao Qi
dfe7f77c4a Print tid in debug output of debug_reg_change_callback
In debug_reg_change_callback, we change debug registers of each LWP.
It makes more sense to print LWP's pid rather than group leader's pid.

gdb:

2015-08-25  Yao Qi  <yao.qi@linaro.org>

	* nat/aarch64-linux-hw-point.c (debug_reg_change_callback):
	Rename local variable pid to tid, and get lwpid of lwp.  Update
	debug output.
2015-08-25 14:45:54 +01:00
Pierre-Marie de Rodat
63e43d3aed DWARF: handle non-local references in nested functions
GDB's current behavior when dealing with non-local references in the
context of nested fuctions is approximative:

  - code using valops.c:value_of_variable read the first available stack
    frame that holds the corresponding variable (whereas there can be
    multiple candidates for this);

  - code directly relying on read_var_value will instead read non-local
    variables in frames where they are not even defined.

This change adds the necessary context to symbol reads (to get the block
they belong to) and to blocks (the static link property, if any) so that
GDB can make the proper decisions when dealing with non-local varibale
references.

gdb/ChangeLog:

	* ada-lang.c (ada_read_var_value): Add a var_block argument
	and pass it to default_read_var_value.
	* block.c (block_static_link): New accessor.
	* block.h (block_static_link): Declare it.
	* buildsym.c (finish_block_internal): Add a static_link
	argument.  If there is a static link, associate it to the new
	block.
	(finish_block): Add a static link argument and pass it to
	finish_block_internal.
	(end_symtab_get_static_block): Update calls to finish_block and
	to finish_block_internal.
	(end_symtab_with_blockvector): Update call to
	finish_block_internal.
	* buildsym.h: Forward-declare struct dynamic_prop.
	(struct context_stack): Add a static_link field.
	(finish_block): Add a static link argument.
	* c-exp.y: Remove an obsolete comment (evaluation of variables
	already start from the selected frame, and now they climb *up*
	the call stack) and propagate the block information to the
	produced expression.
	* d-exp.y: Likewise.
	* f-exp.y: Likewise.
	* go-exp.y: Likewise.
	* jv-exp.y: Likewise.
	* m2-exp.y: Likewise.
	* p-exp.y: Likewise.
	* coffread.c (coff_symtab_read): Update calls to finish_block.
	* dbxread.c (process_one_symbol): Likewise.
	* xcoffread.c (read_xcoff_symtab): Likewise.
	* compile/compile-c-symbols.c (convert_one_symbol): Promote the
	"sym" parameter to struct block_symbol, update its uses and pass
	its block to calls to read_var_value.
	(convert_symbol_sym): Update the calls to convert_one_symbol.
	* compile/compile-loc2c.c (do_compile_dwarf_expr_to_c): Update
	call to read_var_value.
	* dwarf2loc.c (block_op_get_frame_base): New.
	(dwarf2_block_frame_base_locexpr_funcs): Implement the
	get_frame_base method.
	(dwarf2_block_frame_base_loclist_funcs): Likewise.
	(dwarf2locexpr_baton_eval): Add a frame argument and use it
	instead of the selected frame in order to evaluate the
	expression.
	(dwarf2_evaluate_property): Add a frame argument.  Update call
	to dwarf2_locexpr_baton_eval to provide a frame in available and
	to handle the absence of address stack.
	* dwarf2loc.h (dwarf2_evaluate_property): Add a frame argument.
	* dwarf2read.c (attr_to_dynamic_prop): Add a forward
	declaration.
	(read_func_scope): Record any available static link description.
	Update call to finish_block.
	(read_lexical_block_scope): Update call to finish_block.
	* findvar.c (follow_static_link): New.
	(get_hosting_frame): New.
	(default_read_var_value): Add a var_block argument.  Use
	get_hosting_frame to handle non-local references.
	(read_var_value): Add a var_block argument and pass it to the
	LA_READ_VAR_VALUE method.
	* gdbtypes.c (resolve_dynamic_range): Update calls to
	dwarf2_evaluate_property.
	(resolve_dynamic_type_internal): Likewise.
	* guile/scm-frame.c (gdbscm_frame_read_var): Update call to
	read_var_value, passing it the block coming from symbol lookup.
	* guile/scm-symbol.c (gdbscm_symbol_value): Update call to
	read_var_value (TODO).
	* infcmd.c (finish_command_continuation): Update call to
	read_var_value, passing it the block coming from symbol lookup.
	* infrun.c (insert_exception_resume_breakpoint): Likewise.
	* language.h (struct language_defn): Add a var_block argument to
	the LA_READ_VAR_VALUE method.
	* objfiles.c (struct static_link_htab_entry): New.
	(static_link_htab_entry_hash): New.
	(static_link_htab_entry_eq): New.
	(objfile_register_static_link): New.
	(objfile_lookup_static_link): New.
	(free_objfile): Free the STATIC_LINKS hashed map if needed.
	* objfiles.h: Include hashtab.h.
	(struct objfile): Add a static_links field.
	(objfile_register_static_link): New.
	(objfile_lookup_static_link): New.
	* printcmd.c (print_variable_and_value): Update call to
	read_var_value.
	* python/py-finishbreakpoint.c (bpfinishpy_init): Likewise.
	* python/py-frame.c (frapy_read_var): Update call to
	read_var_value, passing it the block coming from symbol lookup.
	* python/py-framefilter.c (extract_sym): Add a sym_block
	parameter and set the pointed value to NULL (TODO).
	(enumerate_args): Update call to extract_sym.
	(enumerate_locals): Update calls to extract_sym and to
	read_var_value.
	* python/py-symbol.c (sympy_value): Update call to
	read_var_value (TODO).
	* stack.c (read_frame_local): Update call to read_var_value.
	(read_frame_arg): Likewise.
	(return_command): Likewise.
	* symtab.h (struct symbol_block_ops): Add a get_frame_base
	method.
	(struct symbol): Add a block field.
	(SYMBOL_BLOCK): New accessor.
	* valops.c (value_of_variable): Remove frame/block handling and
	pass the block argument to read_var_value, which does this job
	now.
	(value_struct_elt_for_reference): Update calls to
	read_var_value.
	(value_of_this): Pass the block found to read_var_value.
	* value.h (read_var_value): Add a var_block argument.
	(default_read_var_value): Likewise.

gdb/testsuite/ChangeLog:

	* gdb.base/nested-subp1.exp: New file.
	* gdb.base/nested-subp1.c: New file.
	* gdb.base/nested-subp2.exp: New file.
	* gdb.base/nested-subp2.c: New file.
	* gdb.base/nested-subp3.exp: New file.
	* gdb.base/nested-subp3.c: New file.
2015-08-25 08:13:28 -04:00
Renlin Li
7c2bea1ad1 [AArch64] Fix a typo in the comment for BFD_RELOC_AARCH64_LD64_GOT_LO12_NC
2015-08-25  Renlin Li  <renlin.li@arm.com>

bfd/
  * reloc.c (BFD_RELOC_AARCH64_LD64_GOTOFF_LO15): Use LP64 instead of
  ILP64.
  * bfd-in2.h: Regenerate.
2015-08-25 12:37:21 +01:00
Yao Qi
ed8b7b421c Move aarch64_linux_new_thread to nat/aarch64-linux.c
This patch moves aarch64_linux_new_thread in GDB and GDBserver to
nat/aarch64-linux.c.

gdb:

2015-08-25  Yao Qi  <yao.qi@linaro.org>

	* aarch64-linux-nat.c (aarch64_linux_new_thread): Move it to ...
	* nat/aarch64-linux.c (aarch64_linux_new_thread): ... here.
	* nat/aarch64-linux.h (aarch64_linux_new_thread): Declare.

gdb/gdbserver:

2015-08-25  Yao Qi  <yao.qi@linaro.org>

	* linux-aarch64-low.c (aarch64_linux_new_thread): Remove.
2015-08-25 11:39:14 +01:00
Yao Qi
db3cb7cb3e Move aarch64_linux_prepare_to_resume to nat/aarch64-linux.c
gdb:

2015-08-25  Yao Qi  <yao.qi@linaro.org>

	* Makefile.in (aarch64-liunx.o): New rule.
	(HFILES_NO_SRCDIR): Add aarch64-linux.h.
	* config/aarch64/linux.mh (NAT_FILE): Add aarch64-linux.o.
	* aarch64-linux-nat.c: Include nat/aarch64-linux.h.
	* aarch64-linux-nat.c (aarch64_get_debug_reg_state): Make it
	extern.
	(aarch64_linux_prepare_to_resume): Move it nat/aarch64-linux.c.
	* nat/aarch64-linux-hw-point.h (aarch64_debug_reg_state): Declare
	* nat/aarch64-linux.c: New file.
	* nat/aarch64-linux.h: New file.

gdb/gdbserver:

2015-08-25  Yao Qi  <yao.qi@linaro.org>

	* Makefile.in (aarch64-linux.o): New rule.
	* configure.srv (aarch64*-*-linux*): Append aarch64-linux.o to
	srv_tgtobj.
	* linux-aarch64-low.c: Include nat/aarch64-linux.h.
	(aarch64_init_debug_reg_state): Make it extern.
	(aarch64_linux_prepare_to_resume): Remove.
2015-08-25 11:39:14 +01:00
Yao Qi
f6011a1c84 Make aarch64_linux_prepare_to_resume the same on GDB and GDBserver
gdb:

2015-08-25  Yao Qi  <yao.qi@linaro.org>

	* aarch64-linux-nat.c (aarch64_linux_prepare_to_resume): Use
	lwp_arch_private_info and ptid_of_lwp.

gdb/gdbserver:

2015-08-25  Yao Qi  <yao.qi@linaro.org>

	* linux-aarch64-low.c (aarch64_linux_prepare_to_resume): Use
	lwp_arch_private_info and ptid_of_lwp.
2015-08-25 11:39:13 +01:00
Yao Qi
88e2cf7ee2 Add pid argument in aarch64_get_debug_reg_state
This patch addes argument pid in aarch64_get_debug_reg_state, so that
its interface is the same on both GDB and GDBserver.

gdb/gdbserver:

2015-018-25  Yao Qi  <yao.qi@linaro.org>

	* linux-aarch64-low.c (aarch64_get_debug_reg_state): Add argument pid.
	Find proc_info by find_process_pid.  All callers updated.
2015-08-25 11:39:13 +01:00
Yao Qi
5e35436ed1 Move debug_reg_change_callback and aarch64_notify_debug_reg_change to nat/aarch64-linux-hw-point.c
gdb:

2015-08-25  Yao Qi  <yao.qi@linaro.org>

	* aarch64-linux-nat.c (struct arch64_dr_update_callback_param):
	Move it to nat/aarch64-linux-hw-point.c.
	(debug_reg_change_callback): Likewise.
	(aarch64_notify_debug_reg_change): :Likewise.
	* nat/aarch64-linux-hw-point.c: Include nat/linux-nat.h.
	(aarch64_dr_update_callback_param): New.
	(debug_reg_change_callback): New function.
	(aarch64_notify_debug_reg_change): Likewise.
	* nat/aarch64-linux-hw-point.h (aarch64_notify_debug_reg_change):
	Remove the declaration.

gdb/gdbserver:

2015-08-25  Yao Qi  <yao.qi@linaro.org>

	* linux-aarch64-low.c (struct arch64_dr_update_callback_param):
	Remove.
	(debug_reg_change_callback): Remove.
	(aarch64_notify_debug_reg_change): Remove.
2015-08-25 11:39:13 +01:00
Yao Qi
75e1f0f7a0 Make debug_reg_change_callback the same on GDB and GDBserver
This patch makes function debug_reg_change_callback in GDB and GDBserver
look the same, so that the following patch can move them to
nat/aarch64-linux-hw-point.c.

gdb:

2015-08-25  Yao Qi  <yao.qi@linaro.org>

	* aarch64-linux-nat.c (debug_reg_change_callback): Use
	ptid_of_lwp to get ptid of lwp.

gdb/gdbserver:

2015-08-25  Yao Qi  <yao.qi@linaro.org>

	* linux-aarch64-low.c (debug_reg_change_callback): Use
	ptid_of_lwp to get ptid of lwp.
2015-08-25 11:39:13 +01:00
Yao Qi
4a8a7965f2 Make aarch64_notify_debug_reg_change the same on GDB and GDBserver
gdb:

2015-08-25  Yao Qi  <yao.qi@linaro.org>

	* aarch64-linux-nat.c (aarch64_notify_debug_reg_change):
	Call current_lwp_ptid.

gdb/gdbserver:

2015-08-25  Yao Qi  <yao.qi@linaro.org>

	* linux-aarch64-low.c (aarch64_notify_debug_reg_change):
	Call current_lwp_ptid.
2015-08-25 11:39:13 +01:00
Yao Qi
32a271eeaf Use debug_printf in debug_reg_change_callback
gdb:

2015-08-25  Yao Qi  <yao.qi@linaro.org>

	* aarch64-linux-nat.c (debug_reg_change_callback): Use
	debug_printf.

gdb/gdbserver:

2015-08-25  Yao Qi  <yao.qi@linaro.org>

	* linux-aarch64-low.c (debug_reg_change_callback): Use
	debug_printf.
2015-08-25 11:39:12 +01:00
Yao Qi
0d51c8d71c Use phex debug_reg_change_callback
This patch is to use phex in debug_reg_change_callback to make it
identical in GDB and GDBserver.

gdb/gdbserver:

2015-08-25  Yao Qi  <yao.qi@linaro.org>

	* linux-aarch64-low.c (debug_reg_change_callback): Use phex.
2015-08-25 11:39:12 +01:00
Yao Qi
5e137137b2 Get pid rather than lwpid
We print PID rather than LWPID in the debug output, so we need call
ptid_get_pid in debug_reg_change_callback.

gdb:

2015-08-25  Yao Qi  <yao.qi@linaro.org>

	* aarch64-linux-nat.c (debug_reg_change_callback): Call
	ptid_get_pid rather than ptid_get_lwp.
2015-08-25 11:39:12 +01:00
Yao Qi
31a43dd5e1 Remove some comments in debug_reg_change_callback
gdb/gdbserver:

2015-08-25  Yao Qi  <yao.qi@linaro.org>

	* linux-aarch64-low.c (debug_reg_change_callback): Remove comments.
2015-08-25 11:39:12 +01:00
Yao Qi
8ee525679d Re-indent the code
gdb/gdbserver:

2015-08-25  Yao Qi  <yao.qi@linaro.org>

	* linux-aarch64-low.c (debug_reg_change_callback): Re-indent
	the code.
2015-08-25 11:39:07 +01:00