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2019-03-12Support fs_base and gs_base on FreeBSD/i386.John Baldwin6-12/+91
The i386 BSD native target uses the same ptrace operations (PT_[GS]ET[FG]SBASE) as the amd64 BSD native target to fetch and store the registers. The amd64 BSD native now uses 'tdep->fsbase_regnum' instead of hardcoding AMD64_FSBASE_REGNUM and AMD64_GSBASE_REGNUM to support 32-bit targets. In addition, the store operations explicitly zero the new register value before fetching it from the register cache to ensure 32-bit values are zero-extended. gdb/ChangeLog: * amd64-bsd-nat.c (amd64bsd_fetch_inferior_registers): Use tdep->fsbase_regnum instead of constants for fs_base and gs_base. (amd64bsd_store_inferior_registers): Likewise. * amd64-fbsd-nat.c (amd64_fbsd_nat_target::read_description): Enable segment base registers. * i386-bsd-nat.c (i386bsd_fetch_inferior_registers): Use PT_GETFSBASE and PT_GETGSBASE. (i386bsd_store_inferior_registers): Use PT_SETFSBASE and PT_SETGSBASE. * i386-fbsd-nat.c (i386_fbsd_nat_target::read_description): Enable segment base registers. * i386-fbsd-tdep.c (i386fbsd_core_read_description): Likewise.
2019-03-12Support the fs_base and gs_base registers on i386.John Baldwin18-31/+119
As on amd64, these registers hold the base address of the fs and gs segments, respectively. For i386 these two registers are 32 bits. gdb/ChangeLog: * amd64-fbsd-nat.c (amd64_fbsd_nat_target::read_description): Update calls to i386_target_description to add 'segments' parameter. * amd64-tdep.c (amd64_init_abi): Set tdep->fsbase_regnum. Don't add segment base registers. * arch/i386.c (i386_create_target_description): Add 'segments' parameter to enable segment base registers. * arch/i386.h (i386_create_target_description): Likewise. * features/i386/32bit-segments.xml: New file. * features/i386/32bit-segments.c: Generate. * i386-fbsd-nat.c (i386_fbsd_nat_target::read_description): Update call to i386_target_description to add 'segments' parameter. * i386-fbsd-tdep.c (i386fbsd_core_read_description): Likewise. * i386-go32-tdep.c (i386_go32_init_abi): Likewise. * i386-linux-tdep.c (i386_linux_read_description): Likewise. * i386-tdep.c (i386_validate_tdesc_p): Add segment base registers if feature is present. (i386_gdbarch_init): Pass I386_NUM_REGS to set_gdbarch_num_regs. Add 'segments' parameter to call to i386_target_description. (i386_target_description): Add 'segments' parameter to enable segment base registers. (_initialize_i386_tdep) [GDB_SELF_TEST]: Add 'segments' parameter to call to i386_target_description. * i386-tdep.h (struct gdbarch_tdep): Add 'fsbase_regnum'. (enum i386_regnum): Add I386_FSBASE_REGNUM and I386_GSBASE_REGNUM. Define I386_NUM_REGS. (i386_target_description): Add 'segments' parameter to enable segment base registers. gdb/gdbserver/ChangeLog: * linux-x86-tdesc.c (i386_linux_read_description): Update call to i386_create_target_description for 'segments' parameter. * lynx-i386-low.c (lynx_i386_arch_setup): Likewise. * nto-x86-low.c (nto_x86_arch_setup): Likewise. * win32-i386-low.c (i386_arch_setup): Likewise.
2019-03-12gdb/testsuite: Prepare for DejaGnu 1.6.2Andrew Burgess8-13/+12
Changes in DejaGnu 1.6.2 mean that our testsuite will no longer run. This is because of some confusion over how the gdb.exp file is handled. The gdb.exp file is really the tool init file, which is loaded from within the DejaGnu core, and it should not be loaded directly from any other file in the testsuite. DejaGnu tries to prevent the same library being loaded twice by remembering the names of library files as they are loaded. Until recently loading the tool init file in DejaGnu was very similar to loading a library file, as a result, loading the gdb.exp tool init file simply recorded 'gdb.exp' as having been loaded, future attempts to load 'gdb.exp' as a library would then be ignored (as the file was marked as already loaded). DejaGnu has now changed so that it supports having both a tool init file and a library with the same name, something that was not possible before. What this means however is that when the core loads the 'gdb.exp' tool init file it no longer marks the library 'gdb.exp' as having been loaded. When we then execute 'load_lib gdb.exp' we then try to reload the 'gdb.exp' file. Unfortunately our gdb.exp file can only be loaded once. It use of 'rename cd builtin_cd' means that a second attempt to load this file will fail. This was discussed on the DejaGnu list here: http://lists.gnu.org/archive/html/dejagnu/2019-03/msg00000.html and the suggested advice is that, unless we have some real requirement to load the tool init file twice, we should remove calls to 'load_lib gdb.exp' and rely on DejaGnu to load the file for us, which is what this patch does. I've tested with native X86-64/GNU Linux and see no regressions. gdb/testsuite/ChangeLog: * config/default.exp: Remove 'load_lib gdb.exp'. * config/monitor.exp: Likewise. * config/sid.exp: Likewise. * config/sim.exp: Likewise. * config/slite.exp: Likewise. * config/unix.exp: Likewise. * gdb.base/default.exp: Remove unhelpful comment.
2019-03-12Fix MinGW build with source-highlightEli Zaretskii2-0/+12
gdb/ChangeLog 2019-03-12 Eli Zaretskii <eliz@gnu.org> PR/24325 * source-cache.c: #undef open and close, to avoid unresolved externals during linking.
2019-03-12Make remote.c ptid constants "const"Tom Tromey2-9/+11
This changes magic_null_ptid, not_sent_ptid, and any_thread_ptid to be "const". This is a minor improvement that makes it so these can't be accidentally modified. Tested by rebuilding. I'm checking this in. gdb/ChangeLog 2019-03-12 Tom Tromey <tromey@adacore.com> * remote.c (magic_null_ptid, not_sent_ptid, any_thread_ptid): Now const. Add initializers. (_initialize_remote): Don't initialize ptid globals.
2019-03-12Fix test-cp-name-parser build, parser_fprintf undefinedPedro Alves2-1/+7
$ make test-cp-name-parser ... test-cp-name-parser.o: In function `yy_symbol_print(_IO_FILE*, int, YYSTYPE const*, cpname_state*)': build/gdb/cp-name-parser.c.tmp:1335: undefined reference to `parser_fprintf(_IO_FILE*, char const*, ...)' build/gdb/cp-name-parser.c.tmp:1339: undefined reference to `parser_fprintf(_IO_FILE*, char const*, ...)' test-cp-name-parser.o: In function `yy_stack_print(short*, short*)': build/gdb/cp-name-parser.c.tmp:1350: undefined reference to `parser_fprintf(_IO_FILE*, char const*, ...)' build/gdb/cp-name-parser.c.tmp:1354: undefined reference to `parser_fprintf(_IO_FILE*, char const*, ...)' build/gdb/cp-name-parser.c.tmp:1356: undefined reference to `parser_fprintf(_IO_FILE*, char const*, ...)' build/gdb/cp-name-parser.c.tmp:1376: more undefined references to `parser_fprintf(_IO_FILE*, char const*, ...)' follow collect2: error: ld returned 1 exit status make: *** [Makefile:1833: test-cp-name-parser] Error 1 gdb/ChangeLog: 2019-03-12 Pedro Alves <palves@redhat.com> * yy-remap.h [TEST_CPNAMES] (YYFPRINTF): Don't define.
2019-03-12Fix test-cp-name-parser build, unused variablePedro Alves2-1/+4
$ make test-cp-name-parser ... CXX test-cp-name-parser.o src/gdb/cp-name-parser.y: In function ‘int gdb::main(int, char**)’: src/gdb/cp-name-parser.y:2137:6: error: unused variable ‘len’ [-Werror=unused-variable] int len; ^~~ cc1plus: all warnings being treated as errors gdb/ChangeLog: 2019-03-12 Pedro Alves <palves@redhat.com> * cp-name-parser.y (main): Remove unused 'len' variable.
2019-03-12Make null_ptid and minus_one_ptid "const"Tom Tromey3-4/+9
This makes null_ptid and minus_one_ptid "const". I think this is an improvement because it means they can't be accidentally modified. 2019-03-12 Tom Tromey <tromey@adacore.com> * common/ptid.c (null_ptid, minus_one_ptid): Now const. * common/ptid.h (null_ptid, minus_one_ptid): Now const.
2019-03-12Change iterate_over_lwps to take a gdb::function_viewTom Tromey9-109/+143
This changes iterate_over_lwps to use a gdb::function_view. This was needed in order to make null_ptid and minus_one_ptid 'const'. gdb/ChangeLog 2019-03-12 Tom Tromey <tromey@adacore.com> * linux-nat.c (iterate_over_lwps): Update. (stop_callback): Remove parameter. (stop_wait_callback, detach_callback, resume_set_callback) (select_singlestep_lwp_callback, set_ignore_sigint) (status_callback, resumed_callback, resume_clear_callback) (kill_callback, kill_wait_callback, linux_nat_stop_lwp): Remove data parameter. (linux_nat_target::detach, linux_nat_target::resume) (linux_stop_and_wait_all_lwps, select_event_lwp) (linux_nat_filter_event, linux_nat_wait_1) (linux_nat_target::kill, linux_nat_target::stop) (linux_nat_target::stop): Update. (linux_nat_resume_callback): Change type. (resume_stopped_resumed_lwps, count_events_callback) (select_event_lwp_callback): Likewise. (linux_stop_lwp, linux_nat_stop_lwp): Update. * arm-linux-nat.c (struct update_registers_data): Remove. (update_registers_callback): Change type. (arm_linux_insert_hw_breakpoint1): Update. * nat/x86-linux-dregs.c (update_debug_registers_callback): Remove parameter. (x86_linux_dr_set_addr): Update. (x86_linux_dr_set_control): Update. * nat/linux-nat.h (iterate_over_lwps_ftype): Remove parameter. (iterate_over_lwps): Use gdb::function_view. * nat/aarch64-linux-hw-point.c (struct aarch64_dr_update_callback_param): Remove. (debug_reg_change_callback): Change type. (aarch64_notify_debug_reg_change): Update. * s390-linux-nat.c (s390_refresh_per_info): Update. gdb/gdbserver/ChangeLog 2019-03-12 Tom Tromey <tromey@adacore.com> * linux-low.c (iterate_over_lwps): Update.
2019-03-11Remove redundant assignment from dwarf2_find_containing_comp_unitTom Tromey2-1/+5
dwarf2_find_containing_comp_unit has two assignments to "this_cu" in quick succession, both of which are just: this_cu = dwarf2_per_objfile->all_comp_units[low]; ... with no intervening assignments. This patch removes the second assignment. I'm checking this in as obvious. Tested on x86-64 Fedora 29. gdb/ChangeLog 2019-03-11 Tom Tromey <tromey@adacore.com> * dwarf2read.c (dwarf2_find_containing_comp_unit): Remove redundant assignment to "this_cu".
2019-03-09Remove unnecessary cases from rank_one_type's switchSimon Marchi2-33/+4
We return INCOMPATIBLE_TYPE_BADNESS for all these type codes, so we might as well just let them go to the default case. Incidentally, this patch also makes this false positive error go away when compiling with gcc (Ubuntu 7.3.0-27ubuntu1~18.04) 7.3.0, default compiler on Ubuntu 18.04. CXX gdbtypes.o /home/smarchi/src/binutils-gdb/gdb/gdbtypes.c: In function ‘rank rank_one_type(type*, type*, value*)’: /home/smarchi/src/binutils-gdb/gdb/gdbtypes.c:4259:1: error: control reaches end of non-void function [-Werror=return-type] } ^ gdb/ChangeLog: * gdbtypes.c (rank_one_type): Remove unnecessary cases from switch.
2019-03-09Split rank_one_type_parm_set from rank_one_typeSimon Marchi2-10/+23
gdb/ChangeLog: * gdbtypes.c (rank_one_type_parm_set): New function extracted from... (rank_one_type): ... this.
2019-03-09Split rank_one_type_parm_struct from rank_one_typeSimon Marchi2-12/+27
gdb/ChangeLog: * gdbtypes.c (rank_one_type_parm_struct): New function extracted from... (rank_one_type): ... this.
2019-03-09Split rank_one_type_parm_complex from rank_one_typeSimon Marchi2-10/+23
gdb/ChangeLog: * gdbtypes.c (rank_one_type_parm_complex): New function extracted from... (rank_one_type): ... this.
2019-03-09Split rank_one_type_parm_float from rank_one_typeSimon Marchi2-19/+32
gdb/ChangeLog: * gdbtypes.c (rank_one_type_parm_float): New function extracted from... (rank_one_type): ... this.
2019-03-09Split rank_one_type_parm_bool from rank_one_typeSimon Marchi2-25/+38
gdb/ChangeLog: * gdbtypes.c (rank_one_type_parm_bool): New function extracted from... (rank_one_type): ... this.
2019-03-09Split rank_one_type_parm_range from rank_one_typeSimon Marchi2-14/+27
gdb/ChangeLog: * gdbtypes.c (rank_one_type_parm_range): New function extracted from... (rank_one_type): ... this.
2019-03-09Split rank_one_type_parm_char from rank_one_typeSimon Marchi2-41/+54
gdb/ChangeLog: * gdbtypes.c (rank_one_type_parm_char): New function extracted from... (rank_one_type): ... this.
2019-03-09Split rank_one_type_parm_enum from rank_one_typeSimon Marchi2-16/+29
gdb/ChangeLog: * gdbtypes.c (rank_one_type_parm_enum): New function extracted from... (rank_one_type): ... this.
2019-03-09Split rank_one_type_parm_int from rank_one_typeSimon Marchi2-83/+96
gdb/ChangeLog: * gdbtypes.c (rank_one_type_parm_int): New function extracted from... (rank_one_type): ... this.
2019-03-09Split rank_one_type_parm_func from rank_one_typeSimon Marchi2-7/+21
gdb/ChangeLog: * gdbtypes.c (rank_one_type_parm_func): New function extracted from... (rank_one_type): ... this.
2019-03-09Split rank_one_type_parm_array from rank_one_typeSimon Marchi2-9/+23
gdb/ChangeLog: * gdbtypes.c (rank_one_type_parm_array): New function extracted from... (rank_one_type): ... this.
2019-03-09Split rank_one_type_parm_ptr from rank_one_typeSimon Marchi2-63/+79
gdb/ChangeLog: * gdbtypes.c (rank_one_type_parm_ptr): New function extracted from... (rank_one_type): ... this.
2019-03-09Ensure 'help set/show print inferior-events' shows the example events.Philippe Waroquiers2-2/+7
Without this patch, the help stops after 'e.g.' : (gdb) apropos \(inferior\|thread\) event set print inferior-events -- Set printing of inferior events (e.g. set print thread-events -- Set printing of thread events (such as thread start and exit) show print inferior-events -- Show printing of inferior events (e.g. show print thread-events -- Show printing of thread events (such as thread start and exit) Using the same notation as for the thread evenets (i.e. 'such as') gives: (gdb) apropos \(inferior\|thread\) event set print inferior-events -- Set printing of inferior events (such as inferior start and exit) set print thread-events -- Set printing of thread events (such as thread start and exit) show print inferior-events -- Show printing of inferior events (such as inferior start and exit) show print thread-events -- Show printing of thread events (such as thread start and exit)
2019-03-09Support styling on native MS-Windows consoleEli Zaretskii7-1/+237
gdb/ChangeLog: 2019-03-08 Eli Zaretskii <eliz@gnu.org> PR/24315 * utils.c (can_emit_style_escape) [_WIN32]: Don't disable styling on MS-Windows if $TERM is not defined. * cli/cli-style.c: Set cli_styling to 1 in the MinGW build. * posix-hdep.c (gdb_console_fputs): * mingw-hdep.c (rgb_to_16colors, gdb_console_fputs): New functions. * ui-file.h (gdb_console_fputs): Add prototype. * ui-file.c (stdio_file::puts): Call gdb_console_fputs, and fall back to fputs only if the former returns zero.
2019-03-07C++-ify bcacheTom Tromey16-316/+228
This somewhat C++-ifies bcache. It replaces bcache_xmalloc and bcache_xfree with constructors; changes some functions into methods; and changes various structures to include a bcache directly (as opposed to a pointer to a bcache). Tested by the buildbot. gdb/ChangeLog 2019-03-07 Tom Tromey <tom@tromey.com> * symmisc.c (print_symbol_bcache_statistics): Update. (print_objfile_statistics): Update. * symfile.c (allocate_symtab): Update. * stabsread.c: Don't include bcache.h. * psymtab.h (struct psymbol_bcache): Don't declare. (class psymtab_storage) <psymbol_cache>: Now a bcache. (psymbol_bcache_init, psymbol_bcache_free) (psymbol_bcache_get_bcache): Don't declare. * psymtab.c (struct psymbol_bcache): Remove. (psymtab_storage::psymtab_storage): Update. (psymtab_storage::~psymtab_storage): Update. (psymbol_bcache_init, psymbol_bcache_free) (psymbol_bcache_get_bcache, psymbol_bcache_full): Remove. (add_psymbol_to_bcache): Update. (allocate_psymtab): Update. * objfiles.h (struct objfile_per_bfd_storage) <filename_cache, macro_cache>: No longer pointers. * objfiles.c (get_objfile_bfd_data): Don't call bcache_xmalloc. (free_objfile_per_bfd_storage): Don't call bcache_xfree. * macrotab.c (macro_bcache): Update. * macroexp.c: Don't include bcache.h. * gdbtypes.c (check_types_worklist): Update. (types_deeply_equal): Remove TRY/CATCH. Update. * elfread.c (elf_symtab_read): Update. * dwarf2read.c: Don't include bcache.h. * buildsym.c (buildsym_compunit::get_macro_table): Update. * bcache.h (bcache, bcache_full, bcache_xffree, bcache_xmalloc) (print_bcache_statistics, bcache_memory_used): Don't declare. (struct bcache): Move from bcache.c. Add constructor, destructor, methods. Rename all data members. * bcache.c (struct bcache): Move to bcache.h. (bcache::expand_hash_table): Rename from expand_hash_table. (bcache): Remove. (bcache::insert): Rename from bcache_full. (bcache::compare): Rename from bcache_compare. (bcache_xmalloc): Remove. (bcache::~bcache): Rename from bcache_xfree. (bcache::print_statistics): Rename from print_bcache_statistics. (bcache::memory_used): Rename from bcache_memory_used.
2019-03-07Fix normal_stop latent bugPedro Alves2-1/+7
TARGET_WAITKIND_NO_RESUMED doesn't have an associated event thread, so we shouldn't be referring to inferior_thread() assuming it points to one. This was caught on the multi-target branch, where we always switch to no-thread-selected whenever we start handling an event, exactly to catch places that incorrectly use "inferior_ptid/inferior_thread()" without switching to the right event thread / target. Here, on the branch, we assert in inferior_thread() because TARGET_WAITKIND_NO_RESUMED doesn't have an associated event thread, so inferior_ptid is still null_ptid. gdb/ChangeLog: 2019-03-07 Pedro Alves <palves@redhat.com> * infrun.c (normal_stop): Also check for TARGET_WAITKIND_NO_RESUMED before referring to inferior_thread().
2019-03-07gdb: Move value_from_host_double into value.c and make more use of itAndrew Burgess7-35/+29
The function value_from_host_double can be moved from f-lang.c into value.c as a generally useful function, and then used more widely. Tested on X86-64/GNU Linux with no regressions. gdb/ChangeLog: * f-lang.c (value_from_host_double): Moved to... * value.c (value_from_host_double): ...here. * value.h (value_from_host_double): Declare. * guile/scm-math.c (vlscm_convert_typed_number): Use value_from_host_double. (vlscm_convert_number): Likewise. * guile/scm-value.c (gdbscm_value_to_real): Likewise. * python/py-value.c (convert_value_from_python): Likewise.
2019-03-06Use SCOPE_EXIT in write_gcore_fileTom Tromey2-17/+7
This replaces a TRY/CATCH in write_gcore_file with a use of SCOPE_EXIT instead. I find that this is simpler to understand. 2019-03-06 Tom Tromey <tom@tromey.com> * gcore.c (write_gcore_file): Use SCOPE_EXIT.
2019-03-06Remove free_current_contentsTom Tromey3-31/+5
free_current_contents is no longer used, so this patch removes it. 2019-03-06 Tom Tromey <tom@tromey.com> * utils.h (free_current_contents): Don't declare. * utils.c (free_current_contents): Remove.
2019-03-06Remove basic cleanup codeTom Tromey7-217/+31
This removes the basic cleanup code: make_cleanups, do_cleanups, discard_cleanups, and friends. This code is no longer needed, as nothing in gdb makes an ordinary cleanup. Final cleanups are still needed. 2019-03-06 Tom Tromey <tom@tromey.com> * top.c (quit_force): Update. * main.c (captured_command_loop): Update. * common/new-op.c (operator new): Update. * common/common-exceptions.c (struct catcher) <save_cleanup_chain>: Remove member. (exceptions_state_mc_init): Update. (exception_try_scope_entry): Return nullptr. (exception_try_scope_exit, exception_rethrow) (throw_exception_sjlj, throw_exception_cxx): Update. * common/cleanups.h (make_cleanup, make_cleanup_dtor) (all_cleanups, do_cleanups, discard_cleanups) (discard_final_cleanups, save_cleanups, save_final_cleanups) (restore_cleanups, restore_final_cleanups): Don't declare. (do_final_cleanups): Remove parameter. * common/cleanups.c (cleanup_chain, make_cleanup) (make_cleanup_dtor, all_cleanups, do_cleanups) (discard_my_cleanups, discard_cleanups) (discard_final_cleanups, save_my_cleanups, save_cleanups) (save_final_cleanups, restore_my_cleanups, restore_cleanups) (null_cleanup): Remove. (do_final_cleanups): Remove parameter.
2019-03-06Use unique_xmalloc_ptr in remote.cTom Tromey2-5/+9
This removes a cleanup from remote.c, replacing it with unique_xmalloc_ptr. 2019-03-06 Tom Tromey <tom@tromey.com> * remote.c (remote_target::remote_parse_stop_reply): Use unique_xmalloc_ptr.
2019-03-06Remove last cleanups from stabsread.cTom Tromey2-46/+47
This removes the last cleanups from stabsread.c. Similar code in dwarf2read.c was C++-ified, but considering that stabs are deprecated, it seemed simpler to just change these allocations to use an obstack and leave the data structures in place. This patch renames field_info to stabs_field_info -- adding a constructor here provoked a bug due to the resulting ODR violation. 2019-03-06 Tom Tromey <tom@tromey.com> * stabsread.c (struct stabs_field_info): Rename from field_info. <list, fnlist>: Add initializers. <obstack>: New member. (read_member_functions, read_struct_fields, read_baseclasses): Allocate on obstack. Don't use cleanups. (read_one_struct_field, read_member_functions, read_struct_fields) (read_baseclasses, read_tilde_fields, attach_fn_fields_to_type) (attach_fields_to_type, read_cpp_abbrev, read_member_functions) (read_struct_type): Update.
2019-03-06Remove last cleanup from linux-namespaces.cTom Tromey4-51/+22
This removes the last cleanup from linux-namespaces.c, replacing it with a use of SCOPE_EXIT. 2019-03-06 Tom Tromey <tom@tromey.com> * nat/linux-namespaces.c (linux_mntns_access_fs): Use SCOPE_EXIT. * common/filestuff.h (make_cleanup_close): Don't declare. * common/filestuff.c (do_close_cleanup, make_cleanup_close): Remove.
2019-03-06Remove last cleanup solib-aix.cTom Tromey2-4/+10
This removes the last cleanup solib-aix.c, replacing it with a use of make_scope_exit. 2019-03-06 Tom Tromey <tom@tromey.com> * solib-aix.c: Use make_scope_exit.
2019-03-06Remove last cleanups from solib-svr4.cTom Tromey2-7/+15
This removes the last cleanups from solib-svr4.c, replacing them with uses of make_scope_exit. 2019-03-06 Tom Tromey <tom@tromey.com> * solib-svr4.c (svr4_parse_libraries, svr4_current_sos_direct): Use make_scope_exit.
2019-03-06Remove cleanup from solib-svr4.cTom Tromey2-30/+15
This removes a cleanup from solib-svr4.c, replacing it with make_scope_exit. 2019-03-06 Tom Tromey <tom@tromey.com> * solib-svr4.c (disable_probes_interface): Remove parameter. (svr4_handle_solib_event): Use make_scope_exit.
2019-03-06Remove last cleanup from gdbserverTom Tromey2-5/+11
This removes the last cleanup from gdbserver, replacing it with SCOPE_EXIT. This could perhaps be done in a different way, but this approach was direct and obviously correct. 2019-03-06 Tom Tromey <tom@tromey.com> * server.c (detach_or_kill_for_exit_cleanup): Remove parameter. (captured_main): Use SCOPE_EXIT.
2019-03-06C++ify remote notification codeTom Tromey4-99/+59
This C++ifies the remote notification code -- replacing function pointers with virtual methods and using unique_ptr. This allows for the removal of some cleanups. 2019-03-06 Tom Tromey <tom@tromey.com> * remote.c (struct stop_reply_deleter): Remove. (stop_reply_up): Update. (struct stop_reply): Derive from notif_event. Don't typedef. <regcache>: Now a std::vector. (stop_reply_xfree): Remove. (stop_reply::~stop_reply): Rename from stop_reply_dtr. (remote_notif_stop_alloc_reply): Return a unique_ptr. Use new. (remote_target::discard_pending_stop_replies): Use delete. (remote_target::remote_parse_stop_reply): Update. (remote_target::process_stop_reply): Update. * remote-notif.h (struct notif_event): Add virtual destructor. Remove "dtr" member. (struct notif_client) <alloc_event>: Return a unique_ptr. (notif_event_xfree): Don't declare. (notif_event_up): New typedef. * remote-notif.c (remote_notif_ack, remote_notif_parse): Update. (notif_event_xfree, do_notif_event_xfree): Remove. (remote_notif_state_xfree): Update.
2019-03-06Change displaced_step_clear_cleanup to a forward_scope_exitTom Tromey2-19/+18
This changes displaced_step_clear_cleanup to be a forward_scope_exit and updates the callers. gdb/ChangeLog 2019-03-06 Tom Tromey <tom@tromey.com> * infrun.c (displaced_step_clear_cleanup): Now a forward_scope_exit type. (displaced_step_prepare_throw): Update. (displaced_step_fixup): Update.
2019-03-06Update two cleanup commentsTom Tromey3-2/+7
This updates another couple of comments to remove mentions of cleanups. gdb/ChangeLog 2019-03-06 Tom Tromey <tom@tromey.com> * inferior.h (class inferior): Update comment. * gdbthread.h (class thread_info): Update comment.
2019-03-06Remove cleanups from coffread.cTom Tromey4-109/+72
This removes the remaining cleanups from coffread.c. Tested by the buildbot and also some manual testing. This version includes the fix provided by Joel. gdb/ChangeLog 2019-03-06 Joel Brobecker <brobecker@adacore.com> Tom Tromey <tom@tromey.com> * stabsread.h (struct stab_section_list): Remove. (coffstab_build_psymtabs): Update. * dbxread.c (symbuf_sections): Now a std::vector. (sect_idx): New global. (fill_symbuf): Update. (coffstab_build_psymtabs): Change type of stabsects parameter. Update. * coffread.c (struct coff_symfile_info) <stabsects>: Now a std::vector. (linetab, linetab_offset, linetab_size, stringtab): Move earlier. (coff_locate_sections): Update. (coff_symfile_read): Remove cleanups. Update. (init_stringtab): Add storage parameter. (free_stringtab, free_stringtab_cleanup): Remove. (init_lineno): Add storage parameter. (free_linetab, free_linetab_cleanup): Remove.
2019-03-06Eliminate fork_info::clobber_regsPedro Alves2-44/+45
All fork_save_infrun_state callers pass '1' as CLOBBER_REGS nowadays. The larger hunk in fork_save_infrun_state is just a reindentation. gdb/ChangeLog: 2019-03-06 Pedro Alves <palves@redhat.com> * linux-fork.c (fork_info::clobber_regs): Delete. (fork_load_infrun_state): Remove reference to 'clobber_regs'. (fork_save_infrun_state): Remove 'clobber_regs' parameter. Update comment. Adjust. (scoped_switch_fork_info::scoped_switch_fork_info) (checkpoint_command, linux_fork_context): Adjust fork_save_infrun_state calls.
2019-03-06linux-fork.c: rewrite inf_has_multiple_threadsPedro Alves2-20/+15
There's no need to iterate over all threads of all inferiors here. gdb/ChangeLog: 2019-03-06 Pedro Alves <palves@redhat.com> * linux-fork.c (inf_has_multiple_thread_cb): Delete. (inf_has_multiple_threads): Return 'bool' and rewrite using inferior_info::threads().
2019-03-06C++ify fork_info, use std::listPedro Alves2-153/+125
- Convert new_fork and free_fork to fork_info ctor/dtor. - Use std::list. gdb/ChangeLog: 2019-03-06 Pedro Alves <palves@redhat.com> * linux-fork.c: Include <list>. (fork_list): Now a std::list instance. (fork_info): Add ctor, dtor, and in-class initialize all fields. (forks_exist_p, find_last_fork): Adjust. (new_fork): Delete. (one_fork_p): New. (add_fork): Adjust. (free_fork): Delete, folded into fork_info::~fork_info(). (delete_fork, find_fork_ptid, find_fork_id, find_fork_pid): Adjust. (init_fork_list): Delete. (linux_fork_killall, linux_fork_mourn_inferior) (linux_fork_detach, info_checkpoints_command): Adjust. (_initialize_linux_fork): No longer call init_fork_list.
2019-03-06Make "checkpoint" not rely on inferior_ptidPedro Alves3-17/+37
Don't rely on "inferior_ptid" deep within add_fork. In the multi-target branch, I'm forcing inferior_ptid to null_ptid early in infrun event handling to make sure we don't inadvertently rely on the current thread/target when we shouldn't, and that caught some bad or unnecessary assumptions throughout. gdb/ChangeLog: 2019-03-06 Pedro Alves <palves@redhat.com> * linux-fork.c (new_fork): New, split out of ... (add_fork): ... this. Return void. Move "first fork" special case from here, to ... (checkpoint_command): ... here. * linux-linux.h (add_fork): Return void.
2019-03-06gdb/fortran: Handle older TYPE*SIZE typenamesAndrew Burgess4-0/+33
This patch adds support for the older TYPE*SIZE typenames that are still around in older code. For implementation this currently reuses the kind mechanism, as under gFortran the kind number is equivalent to the size, however, this is not necessarily true for all compilers. If the rules for other compilers are better understood then this code might need to be improved slightly to allow for a distinction between size and kind, however, adding this extra complexity now seems pointless. gdb/ChangeLog: * f-exp.y (direct_abs_decl): Handle TYPE*SIZE type names. gdb/testsuite/ChangeLog: * gdb.fortran/type-kinds.exp: Extend to cover TYPE*SIZE cases.
2019-03-06gdb/fortran: Add support for the ABS intrinsic functionAndrew Burgess5-1/+70
Adds support for the abs intrinsic function, this requires adding a new pattern to the Fortran parser. Currently only float and integer argument types are supported to ABS, complex is still not supported, this can be added later if needed. gdb/ChangeLog: * f-exp.y: New token, UNOP_INTRINSIC. (exp): New pattern using UNOP_INTRINSIC token. (f77_keywords): Add 'abs' keyword. * f-lang.c: Add 'target-float.h' and 'math.h' includes. (value_from_host_double): New function. (evaluate_subexp_f): Support UNOP_ABS. gdb/testsuite/ChangeLog: * gdb.fortran/intrinsics.exp: Extend to cover ABS.
2019-03-06gdb/fortran: Use TYPE_CODE_CHAR for character typesAndrew Burgess4-2/+11
Switch to using TYPE_CODE_CHAR for character types. This appears to have little impact on the test results as gFortran uses the DW_TAG_string_type to represent all character variables (as far as I can see). The only place this has an impact is when the user casts a variable to a character type, in which case GDB does now use the CHAR type, and prints the variable as both a value and a character, for example, before: (gdb) p ((character) 97) $1 = 97 and after: (gdb) p ((character) 97) $1 = 97 'a' gdb/ChangeLog: * f-lang.c (build_fortran_types): Use TYPE_CODE_CHAR for character types. gdb/testsuite/ChangeLog: * gdb.fortran/type-kinds.exp: Update expected results.
2019-03-06gdb/fortran: Add builtin 8-byte integer type with (kind=8) supportAndrew Burgess6-0/+18
Add a new builtin type, an 8-byte integer, and allow GDB to parse 'integer (kind=8)', returning the new 8-byte integer. gdb/ChangeLog: * f-exp.y (convert_to_kind_type): Handle integer (kind=8). * f-lang.c (build_fortran_types): Setup builtin_integer_s8. * f-lang.h (struct builtin_f_type): Add builtin_integer_s8 field. gdb/testsuite/ChangeLog: * gdb.fortran/type-kinds.exp: Test new integer type kind.