PR gdb/15830
gdb/ChangeLog: PR gdb/15830 * NEWS: The "maint demangle" command is renamed as "demangle". * demangle.c: #include cli/cli-utils.h, language.h. (demangle_command): New function. (_initialize_demangle): Add new command "demangle". * maint.c (maintenance_demangle): Stub out. (_initialize_maint_cmds): Update help text for "maint demangle", and mark as deprecated. gdb/doc/ChangeLog: * gdb.texinfo (Debugging C Plus Plus): Mention "demangle". (Symbols): Ditto. (Maintenance Commands): Delete docs for "maint demangle". gdb/testsuite/ChangeLog: * gdb.base/maint.exp: Remove references to "maint demangle". * gdb.cp/demangle.exp: Update. "maint demangle" -> "demangle". Add tests for explicitly specifying language to demangle. * gdb.dlang/demangle.exp: Ditto.
This commit is contained in:
Doug Evans
parent
ebf3aa7224
commit
439250fbac
@ -1,3 +1,14 @@
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2015-01-11 Doug Evans <xdje42@gmail.com>
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PR gdb/15830
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* NEWS: The "maint demangle" command is renamed as "demangle".
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* demangle.c: #include cli/cli-utils.h, language.h.
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(demangle_command): New function.
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(_initialize_demangle): Add new command "demangle".
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* maint.c (maintenance_demangle): Stub out.
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(_initialize_maint_cmds): Update help text for "maint demangle",
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and mark as deprecated.
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2015-01-11 Mark Kettenis <kettenis@gnu.org>
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* inf-ptrace.c (inf_ptrace_follow_fork): Adjust now that
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6
gdb/NEWS
6
gdb/NEWS
@ -47,6 +47,12 @@
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* New commands
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demangle [-l language] [--] name
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Demangle "name" in the specified language, or the current language
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if elided. This command is renamed from the "maint demangle" command.
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The latter is kept as a no-op to avoid "maint demangle" being interpreted
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as "maint demangler-warning".
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queue-signal signal-name-or-number
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Queue a signal to be delivered to the thread when it is resumed.
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@ -24,10 +24,13 @@
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to a styles of demangling, and GDB specific. */
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#include "defs.h"
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#include "cli/cli-utils.h" /* for skip_to_space */
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#include "command.h"
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#include "gdbcmd.h"
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#include "demangle.h"
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#include "gdb-demangle.h"
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#include "language.h"
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/* Select the default C++ demangling style to use. The default is "auto",
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which allows gdb to attempt to pick an appropriate demangling style for
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the executable it has loaded. It can be set to a specific style ("gnu",
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@ -40,6 +43,8 @@
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#define DEFAULT_DEMANGLING_STYLE AUTO_DEMANGLING_STYLE_STRING
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#endif
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static void demangle_command (char *, int);
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/* See documentation in gdb-demangle.h. */
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int demangle = 1;
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@ -151,6 +156,77 @@ is_cplus_marker (int c)
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return c && strchr (cplus_markers, c) != NULL;
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}
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/* Demangle the given string in the current language. */
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static void
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demangle_command (char *args, int from_tty)
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{
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char *demangled, *name, *lang_name = NULL;
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char *arg_buf, *arg_start;
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int processing_args = 1;
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const struct language_defn *lang;
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struct cleanup *cleanups;
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arg_buf = xstrdup (args != NULL ? args : "");
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cleanups = make_cleanup (xfree, arg_buf);
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arg_start = arg_buf;
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while (processing_args
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&& *arg_start == '-')
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{
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char *p = skip_to_space (arg_start);
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if (strncmp (arg_start, "-l", p - arg_start) == 0)
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{
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char *lang_name_end;
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lang_name = skip_spaces (p);
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lang_name_end = skip_to_space (lang_name);
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lang_name = savestring (lang_name, lang_name_end - lang_name);
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make_cleanup (xfree, lang_name);
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p = lang_name_end;
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}
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else if (strncmp (arg_start, "--", p - arg_start) == 0)
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processing_args = 0;
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else
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{
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*p = '\0';
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error (_("Unrecognized option '%s' to demangle command. "
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"Try \"help demangle\"."), arg_start);
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}
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arg_start = skip_spaces (p);
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}
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name = arg_start;
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if (*name == '\0')
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error (_("Usage: demangle [-l language] [--] name"));
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if (lang_name != NULL)
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{
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enum language lang_enum;
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lang_enum = language_enum (lang_name);
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if (lang_enum == language_unknown)
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error (_("Unknown language \"%s\""), lang_name);
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lang = language_def (lang_enum);
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}
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else
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lang = current_language;
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demangled = language_demangle (lang, name, DMGL_ANSI | DMGL_PARAMS);
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if (demangled != NULL)
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{
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printf_filtered ("%s\n", demangled);
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xfree (demangled);
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}
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else
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error (_("Can't demangle \"%s\""), name);
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do_cleanups (cleanups);
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}
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extern initialize_file_ftype _initialize_demangler; /* -Wmissing-prototypes */
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void
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@ -200,4 +276,10 @@ Use `set demangle-style' without arguments for a list of demangling styles."),
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set_demangling_command,
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show_demangling_style_names,
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&setlist, &showlist);
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add_cmd ("demangle", class_support, demangle_command, _("\
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Demangle a mangled name.\n\
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Usage: demangle [-l language] [--] name\n\
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If LANGUAGE is not specified, NAME is demangled in the current language."),
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&cmdlist);
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}
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@ -1,3 +1,10 @@
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2015-01-11 Doug Evans <xdje42@gmail.com>
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PR gdb/15830
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* gdb.texinfo (Debugging C Plus Plus): Mention "demangle".
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(Symbols): Ditto.
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(Maintenance Commands): Delete docs for "maint demangle".
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2015-01-10 Doug Evans <xdje42@gmail.com>
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* gdb.texinfo (Symbols): Document new commands
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@ -14215,6 +14215,11 @@ method tables of the object computed by @var{expression}. This shows
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one entry per virtual table; there may be multiple virtual tables when
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multiple inheritance is in use.
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@cindex C@t{++} demangling
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@item demangle @var{name}
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Demangle @var{name}.
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@xref{Symbols}, for a more complete description of the @code{demangle} command.
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@cindex C@t{++} symbol display
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@item set print demangle
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@itemx show print demangle
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@ -16070,6 +16075,19 @@ _start + 5 in section .text of /tmp/a.out
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__read_nocancel + 6 in section .text of /usr/lib64/libc.so.6
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@end smallexample
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@kindex demangle
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@cindex demangle
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@item demangle @r{[}-l @var{language}@r{]} @r{[}@var{--}@r{]} @var{name}
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Demangle @var{name}.
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If @var{language} is provided it is the name of the language to demangle
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@var{name} in. Otherwise @var{name} is demangled in the current language.
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The @samp{--} option specifies the end of options,
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and is useful when @var{name} begins with a dash.
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The parameter @code{demangle-style} specifies how to interpret the kind
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of mangling used. @xref{Print Settings}.
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@kindex whatis
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@item whatis[/@var{flags}] [@var{arg}]
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Print the data type of @var{arg}, which can be either an expression
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@ -33501,10 +33519,6 @@ Print the first C@t{++} class/namespace component of @var{name}.
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@item maint cplus namespace
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Print the list of possible C@t{++} namespaces.
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@kindex maint demangle
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@item maint demangle @var{name}
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Demangle a C@t{++} or Objective-C mangled @var{name}.
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@kindex maint deprecate
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@kindex maint undeprecate
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@cindex deprecated commands
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44
gdb/maint.c
44
gdb/maint.c
@ -139,38 +139,14 @@ maintenance_demangler_warning (char *args, int from_tty)
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demangler_warning (__FILE__, __LINE__, "%s", (args == NULL ? "" : args));
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}
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/* Someday we should allow demangling for things other than just
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explicit strings. For example, we might want to be able to specify
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the address of a string in either GDB's process space or the
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debuggee's process space, and have gdb fetch and demangle that
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string. If we have a char* pointer "ptr" that points to a string,
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we might want to be able to given just the name and have GDB
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demangle and print what it points to, etc. (FIXME) */
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/* Old command to demangle a string. The command has been moved to "demangle".
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It is kept for now because otherwise "mt demangle" gets interpreted as
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"mt demangler-warning" which artificially creates an internal gdb error. */
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static void
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maintenance_demangle (char *args, int from_tty)
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{
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char *demangled;
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if (args == NULL || *args == '\0')
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{
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printf_unfiltered (_("\"maintenance demangle\" takes "
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"an argument to demangle.\n"));
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}
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else
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{
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demangled = language_demangle (current_language, args,
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DMGL_ANSI | DMGL_PARAMS);
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if (demangled != NULL)
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{
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printf_unfiltered ("%s\n", demangled);
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xfree (demangled);
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}
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else
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{
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printf_unfiltered (_("Can't demangle \"%s\"\n"), args);
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}
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}
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printf_filtered (_("This command has been moved to \"demangle\".\n"));
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}
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static void
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@ -1009,11 +985,12 @@ show_per_command_cmd (char *args, int from_tty)
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void
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_initialize_maint_cmds (void)
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{
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struct cmd_list_element *cmd;
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add_prefix_cmd ("maintenance", class_maintenance, maintenance_command, _("\
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Commands for use by GDB maintainers.\n\
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Includes commands to dump specific internal GDB structures in\n\
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a human readable form, to cause GDB to deliberately dump core,\n\
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to test internal functions such as the C++/ObjC demangler, etc."),
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a human readable form, to cause GDB to deliberately dump core, etc."),
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&maintenancelist, "maintenance ", 0,
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&cmdlist);
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@ -1082,11 +1059,10 @@ Give GDB a demangler warning.\n\
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Cause GDB to behave as if a demangler warning was reported."),
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&maintenancelist);
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add_cmd ("demangle", class_maintenance, maintenance_demangle, _("\
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Demangle a C++/ObjC mangled name.\n\
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Call internal GDB demangler routine to demangle a C++ link name\n\
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and prints the result."),
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cmd = add_cmd ("demangle", class_maintenance, maintenance_demangle, _("\
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This command has been moved to \"demangle\"."),
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&maintenancelist);
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deprecate_cmd (cmd, "demangle");
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add_prefix_cmd ("per-command", class_maintenance, set_per_command_cmd, _("\
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Per-command statistics settings."),
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@ -1,3 +1,11 @@
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2015-01-11 Doug Evans <xdje42@gmail.com>
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PR gdb/15830
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* gdb.base/maint.exp: Remove references to "maint demangle".
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* gdb.cp/demangle.exp: Update. "maint demangle" -> "demangle".
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Add tests for explicitly specifying language to demangle.
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* gdb.dlang/demangle.exp: Ditto.
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2015-01-09 Pedro Alves <palves@redhat.com>
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* gdb.threads/non-stop-fair-events.c: New file.
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@ -25,7 +25,6 @@
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#maintenance expand-symtabs -- Expand symtabs matching a file regexp
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#maintenance set -- Set GDB internal variables used by the GDB maintainer
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#maintenance show -- Show GDB internal variables used by the GDB maintainer
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#maintenance demangle -- Demangle a C++ mangled name
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#maintenance dump-me -- Get fatal error; make debugger dump its core
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#maintenance print -- Maintenance command for printing GDB internal state
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#maintenance info -- Commands for showing internal info about the program being debugged
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@ -136,13 +135,6 @@ gdb_test "pwd" \
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"Command execution time: \[0-9.\]+ \\(cpu\\), \[0-9.\]+ \\(wall\\)\[\r\n\]+Space used: $decimal \\(\\+$decimal for this command\\)\[\r\n\]+#symtabs: $decimal \\(\\+$decimal\\), #compunits: $decimal \\(\\+$decimal\\), #blocks: $decimal \\(\\+$decimal\\)"
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gdb_test_no_output "maint set per-command off"
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gdb_test "maint demangle" \
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"\"maintenance demangle\" takes an argument to demangle\\."
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gdb_test "maint demangle main" "Can't demangle \"main\""
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# The timeout value is raised, because printing all the symbols and
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# statistical information about Cygwin and Windows libraries takes a lot
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# of time.
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@ -484,7 +476,7 @@ set timeout $oldtimeout
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#============test help on maint commands
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gdb_test "help maint" \
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"Commands for use by GDB maintainers\\..*Includes commands to dump specific internal GDB structures in.*a human readable form, to cause GDB to deliberately dump core,.*to test internal functions such as the C../ObjC demangler, etc\\..*List of maintenance subcommands:.*maintenance info.*maintenance internal-error.*maintenance print.*maintenance set.*maintenance show.*Type.*help maintenance.*followed by maintenance subcommand name for full documentation\\..*Command name abbreviations are allowed if unambiguous\\..*"
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"Commands for use by GDB maintainers\\..*Includes commands to dump specific internal GDB structures in.*a human readable form, to cause GDB to deliberately dump core, etc\\..*List of maintenance subcommands:.*maintenance info.*maintenance internal-error.*maintenance print.*maintenance set.*maintenance show.*Type.*help maintenance.*followed by maintenance subcommand name for full documentation\\..*Command name abbreviations are allowed if unambiguous\\..*"
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gdb_test "help maint info" \
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"Commands for showing internal info about the program being debugged.*unambiguous\\..*"
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@ -496,8 +488,7 @@ test_prefix_command_help {"maint print" "maintenance print"} {
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test_prefix_command_help {"maint" "maintenance"} {
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"Commands for use by GDB maintainers\\.\[\r\n\]+"
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"Includes commands to dump specific internal GDB structures in\[\r\n\]+"
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"a human readable form, to cause GDB to deliberately dump core,\[\r\n\]+"
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"to test internal functions such as the C\\+\\+/ObjC demangler, etc\\.\[\r\n\]+"
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"a human readable form, to cause GDB to deliberately dump core, etc\\.\[\r\n\]+"
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}
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#set oldtimeout $timeout
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@ -73,7 +73,7 @@ proc test_demangling_core {tester test result} {
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set_demangling_style $style
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}
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$tester "maintenance demangle $name" $result $test
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$tester "demangle $name" $result $test
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}
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### Demangle an identifier, and check that the result matches a pattern.
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@ -527,7 +527,7 @@ proc test_gnu_style_demangling {} {
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## 1999-04-19: "Fix from Dale Hawkins". Shouldn't segfault.
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# Accept even a dubious demangling; the string is ambiguous.
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gdb_test_multiple "maintenance demangle __thunk_64__0RL__list__Q29CosNaming20_proxy_NamingContextUlRPt25_CORBA_Unbounded_Sequence1ZQ29CosNaming7BindingRPQ29CosNaming15BindingIterator" "gnu: __thunk_64__0RL__list__Q29CosNaming20_proxy_NamingContextUlRPt25_CORBA_Unbounded_Sequence1ZQ29CosNaming7BindingRPQ29CosNaming15BindingIterator" {
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gdb_test_multiple "demangle __thunk_64__0RL__list__Q29CosNaming20_proxy_NamingContextUlRPt25_CORBA_Unbounded_Sequence1ZQ29CosNaming7BindingRPQ29CosNaming15BindingIterator" "gnu: __thunk_64__0RL__list__Q29CosNaming20_proxy_NamingContextUlRPt25_CORBA_Unbounded_Sequence1ZQ29CosNaming7BindingRPQ29CosNaming15BindingIterator" {
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-re "virtual function thunk \\(delta:-64\\) for CosNaming::_proxy_NamingContext::_0RL__list\\(unsigned long, _CORBA_Unbounded_Sequence<CosNaming::Binding> \\*\\&, CosNaming::BindingIterator \\*\\&\\)\r\n$gdb_prompt $" {
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pass "gnu: __thunk_64__0RL__list__Q29CosNaming20_proxy_NamingContextUlRPt25_CORBA_Unbounded_Sequence1ZQ29CosNaming7BindingRPQ29CosNaming15BindingIterator"
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}
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@ -1557,6 +1557,14 @@ proc do_tests {} {
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catch_demangling_errors test_gnu_style_demangling
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catch_demangling_errors test_arm_style_demangling
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catch_demangling_errors test_hp_style_demangling
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# Verify specifying demangle language.
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gdb_test_no_output "set language unknown"
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set_demangling_style "auto"
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gdb_test_exact "demangle -l c++ -- _ZSt4cout" "std::cout"
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gdb_test_exact "demangle -l c++ _ZSt4cout" "std::cout"
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gdb_test_exact "demangle -l c -- _ZSt4cout" "Can't demangle \"_ZSt4cout\""
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gdb_test_exact "demangle -l garbage xyzdje" "Unknown language \"garbage\""
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}
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do_tests
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@ -23,7 +23,7 @@ if { [skip_d_tests] } { continue }
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### Utility function for test_demangling and test_demangling_exact.
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proc test_demangling {test result} {
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gdb_test_exact "maintenance demangle $test" $result $test
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gdb_test_exact "demangle $test" $result $test
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}
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proc test_d_demangling {} {
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@ -201,6 +201,9 @@ if [set_lang_d] {
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gdb_test_no_output "set width 0"
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test_d_demangling
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# Verify we can specify the d language to demangle.
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gdb_test_exact "demangle -l d -- _Dmain" "D main"
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} else {
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warning "D demangling tests suppressed."
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}
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