* NEWS: Mention new options "set debug dwarf2-read" and
"set debug symtab-create". * dwarf2read.c (dwarf2_read_debug): New static global. (dwarf2_build_psymtabs_hard): Add debugging printfs. (process_queue): Ditto. (process_full_comp_unit): Ditto. (_initialize_dwarf2_read): Add new option "set debug dwarf2-read". * elfread.c (elf_symfile_read): Add debugging printf. * minsyms.c (install_minimal_symbols): Ditto. * psymtab.c (allocate_psymtab): Ditto. * symfile.c (allocate_symtab): Ditto. * symtab.c (symtab_create_debug): New global. (_initialize_symtab): Add new option "set debug symtab-create". * symtab.h (symtab_create_debug): Declare. doc/ * gdb.texinfo (Debugging Output): Document debug options dwarf2-read and symtab-create.
This commit is contained in:
Doug Evans
parent
1c658ad5fa
commit
45cfd46896
11 changed files with 164 additions and 0 deletions
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@ -1,5 +1,20 @@
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2012-06-26 Doug Evans <dje@google.com>
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* NEWS: Mention new options "set debug dwarf2-read" and
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"set debug symtab-create".
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* dwarf2read.c (dwarf2_read_debug): New static global.
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(dwarf2_build_psymtabs_hard): Add debugging printfs.
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(process_queue): Ditto.
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(process_full_comp_unit): Ditto.
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(_initialize_dwarf2_read): Add new option "set debug dwarf2-read".
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* elfread.c (elf_symfile_read): Add debugging printf.
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* minsyms.c (install_minimal_symbols): Ditto.
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* psymtab.c (allocate_psymtab): Ditto.
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* symfile.c (allocate_symtab): Ditto.
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* symtab.c (symtab_create_debug): New global.
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(_initialize_symtab): Add new option "set debug symtab-create".
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* symtab.h (symtab_create_debug): Declare.
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* dwarf2read.c (lookup_dwo_comp_unit): Enhance comment.
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(lookup_dwo_type_unit): Ditto.
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10
gdb/NEWS
10
gdb/NEWS
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@ -468,6 +468,16 @@ tstop [NOTES]
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* New options
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set debug dwarf2-read
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show debug dwarf2-read
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Turns on or off display of debugging messages related to reading
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DWARF debug info. The default is off.
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set debug symtab-create
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show debug symtab-create
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Turns on or off display of debugging messages related to symbol table
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creation. The default is off.
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set extended-prompt
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show extended-prompt
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Set the GDB prompt, and allow escape sequences to be inserted to
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@ -1,3 +1,8 @@
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2012-06-26 Doug Evans <dje@google.com>
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* gdb.texinfo (Debugging Output): Document debug options dwarf2-read
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and symtab-create.
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2012-06-25 Keith Seitz <keiths@redhat.com>
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* gdb.texinfo (GDB/MI Breakpoint Commands): Remove "-r" option
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@ -21741,6 +21741,12 @@ The value is the number of nesting levels to print.
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A value of zero turns off the display.
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@item show debug dwarf2-die
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Show the current state of DWARF2 DIE debugging.
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@item set debug dwarf2-read
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@cindex DWARF2 Reading
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Turns on or off display of debugging messages related to reading
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DWARF debug info. The default is off.
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@item show debug dwarf2-read
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Show the current state of DWARF2 reader debugging.
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@item set debug displaced
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@cindex displaced stepping debugging info
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Turns on or off display of @value{GDBN} debugging info for the
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@ -21838,6 +21844,12 @@ Turns on or off debugging messages for FR-V shared-library code.
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@item show debug solib-frv
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Display the current state of FR-V shared-library code debugging
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messages.
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@item set debug symtab-create
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@cindex symbol table creation
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Turns on or off display of debugging messages related to symbol table creation.
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The default is off.
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@item show debug symtab-create
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Show the current state of symbol table creation debugging.
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@item set debug target
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@cindex target debugging info
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Turns on or off display of @value{GDBN} target debugging info. This info
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@ -82,6 +82,10 @@
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typedef struct symbol *symbolp;
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DEF_VEC_P (symbolp);
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/* When non-zero, print basic high level tracing messages.
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This is in contrast to the low level DIE reading of dwarf2_die_debug. */
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static int dwarf2_read_debug = 0;
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/* When non-zero, dump DIEs after they are read in. */
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static int dwarf2_die_debug = 0;
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@ -4450,6 +4454,12 @@ dwarf2_build_psymtabs_hard (struct objfile *objfile)
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struct obstack temp_obstack;
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int i;
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if (dwarf2_read_debug)
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{
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fprintf_unfiltered (gdb_stdlog, "Building psymtabs of objfile %s ...\n",
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objfile->name);
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}
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dwarf2_per_objfile->reading_partial_symbols = 1;
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dwarf2_read_section (objfile, &dwarf2_per_objfile->info);
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@ -4483,6 +4493,10 @@ dwarf2_build_psymtabs_hard (struct objfile *objfile)
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discard_cleanups (addrmap_cleanup);
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do_cleanups (back_to);
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if (dwarf2_read_debug)
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fprintf_unfiltered (gdb_stdlog, "Done building psymtabs of %s\n",
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objfile->name);
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}
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/* die_reader_func for load_partial_comp_unit. */
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@ -5387,6 +5401,13 @@ process_queue (void)
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{
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struct dwarf2_queue_item *item, *next_item;
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if (dwarf2_read_debug)
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{
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fprintf_unfiltered (gdb_stdlog,
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"Expanding one or more symtabs of objfile %s ...\n",
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dwarf2_per_objfile->objfile->name);
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}
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/* The queue starts out with one item, but following a DIE reference
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may load a new CU, adding it to the end of the queue. */
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for (item = dwarf2_queue; item != NULL; dwarf2_queue = item = next_item)
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@ -5402,6 +5423,12 @@ process_queue (void)
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}
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dwarf2_queue_tail = NULL;
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if (dwarf2_read_debug)
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{
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fprintf_unfiltered (gdb_stdlog, "Done expanding symtabs of %s.\n",
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dwarf2_per_objfile->objfile->name);
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}
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}
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/* Free all allocated queue entries. This function only releases anything if
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@ -5791,6 +5818,14 @@ process_full_comp_unit (struct dwarf2_per_cu_data *per_cu,
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struct cleanup *back_to, *delayed_list_cleanup;
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CORE_ADDR baseaddr;
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if (dwarf2_read_debug)
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{
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fprintf_unfiltered (gdb_stdlog,
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"Expanding symtab of %s at offset 0x%x\n",
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per_cu->is_debug_types ? "TU" : "CU",
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per_cu->offset.sect_off);
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}
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baseaddr = ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile));
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buildsym_init ();
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@ -5866,6 +5901,14 @@ process_full_comp_unit (struct dwarf2_per_cu_data *per_cu,
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VEC_safe_push (dwarf2_per_cu_ptr, dwarf2_per_objfile->just_read_cus, per_cu);
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do_cleanups (back_to);
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if (dwarf2_read_debug)
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{
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fprintf_unfiltered (gdb_stdlog,
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"Done expanding symtab of %s at offset 0x%x\n",
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per_cu->is_debug_types ? "TU" : "CU",
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per_cu->offset.sect_off);
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}
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}
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/* Process an imported unit DIE. */
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@ -18278,6 +18321,15 @@ conversational style, when possible."),
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&set_dwarf2_cmdlist,
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&show_dwarf2_cmdlist);
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add_setshow_boolean_cmd ("dwarf2-read", no_class, &dwarf2_read_debug, _("\
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Set debugging of the dwarf2 reader."), _("\
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Show debugging of the dwarf2 reader."), _("\
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When enabled, debugging messages are printed during dwarf2 reading\n\
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and symtab expansion."),
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NULL,
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NULL,
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&setdebuglist, &showdebuglist);
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add_setshow_zinteger_cmd ("dwarf2-die", no_class, &dwarf2_die_debug, _("\
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Set debugging of the dwarf2 DIE reader."), _("\
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Show debugging of the dwarf2 DIE reader."), _("\
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@ -1251,6 +1251,13 @@ elf_symfile_read (struct objfile *objfile, int symfile_flags)
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asymbol **symbol_table = NULL, **dyn_symbol_table = NULL;
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asymbol *synthsyms;
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if (symtab_create_debug)
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{
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fprintf_unfiltered (gdb_stdlog,
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"Reading minimal symbols of objfile %s ...\n",
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objfile->name);
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}
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init_minimal_symbol_collection ();
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back_to = make_cleanup_discard_minimal_symbols ();
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@ -1443,6 +1450,9 @@ elf_symfile_read (struct objfile *objfile, int symfile_flags)
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xfree (debugfile);
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}
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}
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if (symtab_create_debug)
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fprintf_unfiltered (gdb_stdlog, "Done reading minimal symbols.\n");
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}
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/* Callback to lazily read psymtabs. */
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@ -1167,6 +1167,13 @@ install_minimal_symbols (struct objfile *objfile)
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if (msym_count > 0)
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{
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if (symtab_create_debug)
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{
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fprintf_unfiltered (gdb_stdlog,
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"Installing %d minimal symbols of objfile %s.\n",
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msym_count, objfile->name);
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}
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/* Allocate enough space in the obstack, into which we will gather the
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bunches of new and existing minimal symbols, sort them, and then
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compact out the duplicate entries. Once we have a final table,
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@ -1731,6 +1731,26 @@ allocate_psymtab (const char *filename, struct objfile *objfile)
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psymtab->next = objfile->psymtabs;
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objfile->psymtabs = psymtab;
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if (symtab_create_debug)
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{
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/* Be a bit clever with debugging messages, and don't print objfile
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every time, only when it changes. */
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static char *last_objfile_name = NULL;
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if (last_objfile_name == NULL
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|| strcmp (last_objfile_name, objfile->name) != 0)
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{
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xfree (last_objfile_name);
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last_objfile_name = xstrdup (objfile->name);
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fprintf_unfiltered (gdb_stdlog,
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"Creating one or more psymtabs for objfile %s ...\n",
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last_objfile_name);
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}
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fprintf_unfiltered (gdb_stdlog,
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"Created psymtab 0x%lx for module %s.\n",
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(long) psymtab, filename);
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}
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return (psymtab);
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}
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@ -2873,6 +2873,26 @@ allocate_symtab (const char *filename, struct objfile *objfile)
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symtab->next = objfile->symtabs;
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objfile->symtabs = symtab;
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if (symtab_create_debug)
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{
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/* Be a bit clever with debugging messages, and don't print objfile
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every time, only when it changes. */
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static char *last_objfile_name = NULL;
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if (last_objfile_name == NULL
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|| strcmp (last_objfile_name, objfile->name) != 0)
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{
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xfree (last_objfile_name);
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last_objfile_name = xstrdup (objfile->name);
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fprintf_unfiltered (gdb_stdlog,
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"Creating one or more symtabs for objfile %s ...\n",
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last_objfile_name);
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}
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fprintf_unfiltered (gdb_stdlog,
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"Created symtab 0x%lx for module %s.\n",
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(long) symtab, filename);
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}
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return (symtab);
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}
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11
gdb/symtab.c
11
gdb/symtab.c
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@ -109,6 +109,9 @@ void _initialize_symtab (void);
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/* */
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/* When non-zero, print debugging messages related to symtab creation. */
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int symtab_create_debug = 0;
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/* Non-zero if a file may be known by two different basenames.
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This is the uncommon case, and significantly slows down gdb.
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Default set to "off" to not slow down the common case. */
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@ -5014,5 +5017,13 @@ one base name, and gdb will do file name comparisons more efficiently."),
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NULL, NULL,
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&setlist, &showlist);
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add_setshow_boolean_cmd ("symtab-create", no_class, &symtab_create_debug,
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_("Set debugging of symbol table creation."),
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_("Show debugging of symbol table creation."), _("\
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When enabled, debugging messages are printed when building symbol tables."),
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NULL,
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NULL,
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&setdebuglist, &showdebuglist);
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observer_attach_executable_changed (symtab_observer_executable_changed);
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}
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@ -1250,6 +1250,8 @@ void fixup_section (struct general_symbol_info *ginfo,
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struct objfile *lookup_objfile_from_block (const struct block *block);
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extern int symtab_create_debug;
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extern int basenames_may_differ;
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int compare_filenames_for_search (const char *filename,
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