#include "defs.h"
#include "arch-utils.h"
#include <ctype.h>
+#include <cmath>
#include <signal.h>
#include "command.h"
#include "gdbcmd.h"
#include "cli/cli-setshow.h"
#include "cli/cli-cmds.h"
+#if CXX_STD_THREAD
+#include "gdbsupport/thread-pool.h"
+#endif
+
static void maintenance_do_deprecate (const char *, int);
/* Access the maintenance subcommands. */
printf_filtered ("\n");
}
+/* Information passed between the "maintenance info sections" command, and
+ the worker function that prints each section. */
+struct maint_print_section_data
+{
+ /* The GDB objfile we're printing this section for. */
+ struct objfile *objfile;
+
+ /* The argument string passed by the user to the top level maintenance
+ info sections command. Used for filtering which sections are
+ printed. */
+ const char *arg;
+
+ /* The number of digits in the highest section index for all sections
+ from the bfd object associated with OBJFILE. Used when pretty
+ printing the index number to ensure all of the indexes line up. */
+ int index_digits;
+
+ /* Constructor. */
+ maint_print_section_data (struct objfile *objfile, const char *arg,
+ bfd *abfd)
+ : objfile (objfile),
+ arg(arg)
+ {
+ int section_count = gdb_bfd_count_sections (abfd);
+ index_digits = ((int) log10 ((float) section_count)) + 1;
+ }
+
+private:
+ maint_print_section_data () = delete;
+ maint_print_section_data (const maint_print_section_data &) = delete;
+};
+
+/* Helper function to pretty-print the section index of ASECT from ABFD.
+ The INDEX_DIGITS is the number of digits in the largest index that will
+ be printed, and is used to pretty-print the resulting string. */
+
static void
-print_bfd_section_info (bfd *abfd,
- asection *asect,
+print_section_index (bfd *abfd,
+ asection *asect,
+ int index_digits)
+{
+ std::string result
+ = string_printf (" [%d] ", gdb_bfd_section_index (abfd, asect));
+ /* The '+ 4' for the leading and trailing characters. */
+ printf_filtered ("%-*s", (index_digits + 4), result.c_str ());
+}
+
+/* Print information about ASECT from ABFD. DATUM holds a pointer to a
+ maint_print_section_data object. The section will be printed using the
+ VMA's from the bfd, which will not be the relocated addresses for bfds
+ that should be relocated. The information must be printed with the
+ same layout as PRINT_OBJFILE_SECTION_INFO below. */
+
+static void
+print_bfd_section_info (bfd *abfd,
+ asection *asect,
void *datum)
{
- flagword flags = bfd_get_section_flags (abfd, asect);
- const char *name = bfd_section_name (abfd, asect);
- const char *arg = (const char *) datum;
+ flagword flags = bfd_section_flags (asect);
+ const char *name = bfd_section_name (asect);
+ maint_print_section_data *print_data = (maint_print_section_data *) datum;
+ const char *arg = print_data->arg;
if (arg == NULL || *arg == '\0'
|| match_substring (arg, name)
int addr_size = gdbarch_addr_bit (gdbarch) / 8;
CORE_ADDR addr, endaddr;
- addr = bfd_section_vma (abfd, asect);
- endaddr = addr + bfd_section_size (abfd, asect);
- printf_filtered (" [%d] ", gdb_bfd_section_index (abfd, asect));
+ addr = bfd_section_vma (asect);
+ endaddr = addr + bfd_section_size (asect);
+ print_section_index (abfd, asect, print_data->index_digits);
maint_print_section_info (name, flags, addr, endaddr,
asect->filepos, addr_size);
}
}
+/* Print information about ASECT which is GDB's wrapper around a section
+ from ABFD. The information must be printed with the same layout as
+ PRINT_BFD_SECTION_INFO above. PRINT_DATA holds information used to
+ filter which sections are printed, and for formatting the output. */
+
static void
-print_objfile_section_info (bfd *abfd,
- struct obj_section *asect,
- const char *string)
+print_objfile_section_info (bfd *abfd,
+ struct obj_section *asect,
+ maint_print_section_data *print_data)
{
- flagword flags = bfd_get_section_flags (abfd, asect->the_bfd_section);
- const char *name = bfd_section_name (abfd, asect->the_bfd_section);
+ flagword flags = bfd_section_flags (asect->the_bfd_section);
+ const char *name = bfd_section_name (asect->the_bfd_section);
+ const char *string = print_data->arg;
if (string == NULL || *string == '\0'
|| match_substring (string, name)
struct gdbarch *gdbarch = gdbarch_from_bfd (abfd);
int addr_size = gdbarch_addr_bit (gdbarch) / 8;
+ print_section_index (abfd, asect->the_bfd_section,
+ print_data->index_digits);
maint_print_section_info (name, flags,
obj_section_addr (asect),
obj_section_endaddr (asect),
}
}
+/* Find an obj_section, GDB's wrapper around a bfd section for ASECTION
+ from ABFD. It might be that no such wrapper exists (for example debug
+ sections don't have such wrappers) in which case nullptr is returned. */
+
+static obj_section *
+maint_obj_section_from_bfd_section (bfd *abfd,
+ asection *asection,
+ objfile *ofile)
+{
+ if (ofile->sections == nullptr)
+ return nullptr;
+
+ obj_section *osect
+ = &ofile->sections[gdb_bfd_section_index (abfd, asection)];
+
+ if (osect >= ofile->sections_end)
+ return nullptr;
+
+ return osect;
+}
+
+/* Print information about ASECT from ABFD. DATUM holds a pointer to a
+ maint_print_section_data object. Where possible the information for
+ ASECT will print the relocated addresses of the section. */
+
+static void
+print_bfd_section_info_maybe_relocated (bfd *abfd,
+ asection *asect,
+ void *datum)
+{
+ maint_print_section_data *print_data = (maint_print_section_data *) datum;
+ objfile *objfile = print_data->objfile;
+
+ gdb_assert (objfile->sections != NULL);
+ obj_section *osect
+ = maint_obj_section_from_bfd_section (abfd, asect, objfile);
+
+ if (osect->the_bfd_section == NULL)
+ print_bfd_section_info (abfd, asect, datum);
+ else
+ print_objfile_section_info (abfd, osect, print_data);
+}
+
+/* Implement the "maintenance info sections" command. */
+
static void
maintenance_info_sections (const char *arg, int from_tty)
{
if (exec_bfd)
{
+ bool allobj = false;
+
printf_filtered (_("Exec file:\n"));
printf_filtered (" `%s', ", bfd_get_filename (exec_bfd));
wrap_here (" ");
printf_filtered (_("file type %s.\n"), bfd_get_target (exec_bfd));
- if (arg && *arg && match_substring (arg, "ALLOBJ"))
+
+ /* Only this function cares about the 'ALLOBJ' argument;
+ if 'ALLOBJ' is the only argument, discard it rather than
+ passing it down to print_objfile_section_info (which
+ wouldn't know how to handle it). */
+ if (arg && strcmp (arg, "ALLOBJ") == 0)
{
- struct obj_section *osect;
+ arg = NULL;
+ allobj = true;
+ }
- /* Only this function cares about the 'ALLOBJ' argument;
- if 'ALLOBJ' is the only argument, discard it rather than
- passing it down to print_objfile_section_info (which
- wouldn't know how to handle it). */
- if (strcmp (arg, "ALLOBJ") == 0)
- arg = NULL;
+ for (objfile *ofile : current_program_space->objfiles ())
+ {
+ if (allobj)
+ printf_filtered (_(" Object file: %s\n"),
+ bfd_get_filename (ofile->obfd));
+ else if (ofile->obfd != exec_bfd)
+ continue;
- for (objfile *ofile : current_program_space->objfiles ())
- {
- printf_filtered (_(" Object file: %s\n"),
- bfd_get_filename (ofile->obfd));
- ALL_OBJFILE_OSECTIONS (ofile, osect)
- {
- print_objfile_section_info (ofile->obfd, osect, arg);
- }
- }
+ maint_print_section_data print_data (ofile, arg, ofile->obfd);
+
+ bfd_map_over_sections (ofile->obfd,
+ print_bfd_section_info_maybe_relocated,
+ (void *) &print_data);
}
- else
- bfd_map_over_sections (exec_bfd, print_bfd_section_info, (void *) arg);
}
if (core_bfd)
{
+ maint_print_section_data print_data (nullptr, arg, core_bfd);
+
printf_filtered (_("Core file:\n"));
printf_filtered (" `%s', ", bfd_get_filename (core_bfd));
wrap_here (" ");
printf_filtered (_("file type %s.\n"), bfd_get_target (core_bfd));
- bfd_map_over_sections (core_bfd, print_bfd_section_info, (void *) arg);
+ bfd_map_over_sections (core_bfd, print_bfd_section_info,
+ (void *) &print_data);
}
}
if (sym.minsym)
{
- const char *symbol_name = MSYMBOL_PRINT_NAME (sym.minsym);
+ const char *symbol_name = sym.minsym->print_name ();
const char *symbol_offset
= pulongest (address - BMSYMBOL_VALUE_ADDRESS (sym));
gdb_assert (sect->objfile && objfile_name (sect->objfile));
obj_name = objfile_name (sect->objfile);
- if (MULTI_OBJFILE_P ())
+ if (current_program_space->multi_objfile_p ())
printf_filtered (_("%s + %s in section %s of %s\n"),
symbol_name, symbol_offset,
section_name, obj_name);
/* Profiling support. */
-static int maintenance_profile_p;
+static bool maintenance_profile_p;
static void
show_maintenance_profile_p (struct ui_file *file, int from_tty,
struct cmd_list_element *c, const char *value)
error (_("Profiling support is not available on this system."));
}
#endif
+
+static int n_worker_threads = 0;
+
+bool worker_threads_disabled ()
+{
+ return n_worker_threads == 0;
+}
+
+/* Update the thread pool for the desired number of threads. */
+static void
+update_thread_pool_size ()
+{
+#if CXX_STD_THREAD
+ int n_threads = n_worker_threads;
+
+ if (n_threads < 0)
+ n_threads = std::thread::hardware_concurrency ();
+
+ gdb::thread_pool::g_thread_pool->set_thread_count (n_threads);
+#endif
+}
+
+static void
+maintenance_set_worker_threads (const char *args, int from_tty,
+ struct cmd_list_element *c)
+{
+ update_thread_pool_size ();
+}
+
\f
-/* If nonzero, display time usage both at startup and for each command. */
+/* If true, display time usage both at startup and for each command. */
-static int per_command_time;
+static bool per_command_time;
-/* If nonzero, display space usage both at startup and for each command. */
+/* If true, display space usage both at startup and for each command. */
-static int per_command_space;
+static bool per_command_space;
-/* If nonzero, display basic symtab stats for each command. */
+/* If true, display basic symtab stats for each command. */
-static int per_command_symtab;
+static bool per_command_symtab;
/* mt per-command commands. */
auto millis = ticks % 1000;
std::time_t as_time = system_clock::to_time_t (now);
- struct tm *tm = localtime (&as_time);
+ struct tm tm;
+ localtime_r (&as_time, &tm);
char out[100];
- strftime (out, sizeof (out), "%F %H:%M:%S", tm);
+ strftime (out, sizeof (out), "%F %H:%M:%S", &tm);
printf_unfiltered ("%s.%03d - %s\n", out, (int) millis, msg);
}
add_alias_cmd ("i", "info", class_maintenance, 1, &maintenancelist);
add_cmd ("sections", class_maintenance, maintenance_info_sections, _("\
-List the BFD sections of the exec and core files. \n\
+List the BFD sections of the exec and core files.\n\
Arguments may be any combination of:\n\
[one or more section names]\n\
ALLOC LOAD RELOC READONLY CODE DATA ROM CONSTRUCTOR\n\
&maintenancelist);
add_cmd ("deprecate", class_maintenance, maintenance_deprecate, _("\
-Deprecate a command. Note that this is just in here so the \n\
-testsuite can check the command deprecator. You probably shouldn't use this,\n\
-rather you should use the C function deprecate_cmd(). If you decide you \n\
-want to use it: maintenance deprecate 'commandname' \"replacement\". The \n\
-replacement is optional."), &maintenancelist);
+Deprecate a command (for testing purposes).\n\
+Usage: maintenance deprecate COMMANDNAME [\"REPLACEMENT\"]\n\
+This is used by the testsuite to check the command deprecator.\n\
+You probably shouldn't use this,\n\
+rather you should use the C function deprecate_cmd()."), &maintenancelist);
add_cmd ("undeprecate", class_maintenance, maintenance_undeprecate, _("\
-Undeprecate a command. Note that this is just in here so the \n\
-testsuite can check the command deprecator. You probably shouldn't use this,\n\
-If you decide you want to use it: maintenance undeprecate 'commandname'"),
+Undeprecate a command (for testing purposes).\n\
+Usage: maintenance undeprecate COMMANDNAME\n\
+This is used by the testsuite to check the command deprecator.\n\
+You probably shouldn't use this."),
&maintenancelist);
add_cmd ("selftest", class_maintenance, maintenance_selftest, _("\
Run gdb's unit tests.\n\
-Usage: maintenance selftest [filter]\n\
+Usage: maintenance selftest [FILTER]\n\
This will run any unit tests that were built in to gdb.\n\
If a filter is given, only the tests with that value in their name will ran."),
&maintenancelist);
show_maintenance_profile_p,
&maintenance_set_cmdlist,
&maintenance_show_cmdlist);
+
+ add_setshow_zuinteger_unlimited_cmd ("worker-threads",
+ class_maintenance,
+ &n_worker_threads, _("\
+Set the number of worker threads GDB can use."), _("\
+Show the number of worker threads GDB can use."), _("\
+GDB may use multiple threads to speed up certain CPU-intensive operations,\n\
+such as demangling symbol names."),
+ maintenance_set_worker_threads, NULL,
+ &maintenance_set_cmdlist,
+ &maintenance_show_cmdlist);
+
+ update_thread_pool_size ();
}
projects / deliverable / binutils-gdb.git / blobdiff