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authorDoug Evans <dje@google.com>2013-05-17 18:09:06 +0000
committerDoug Evans <dje@google.com>2013-05-17 18:09:06 +0000
commit7d0c9981dc1753663969b47221164504e71676a6 (patch)
tree7b96437bee3ee6847a00c8cf6a8488cc901766ef /gdb/symmisc.c
parent8d324e832969c4334524c77df4f94fe54f45ad18 (diff)
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* NEWS: Mention new maintenance commands check-symtabs, and
expand-symtabs, and renamed check-psymtabs. * psymtab.c (maintenance_check_psymtabs): Renamed from maintenance_check_symtabs. Only process already-expanded symbol tables. (_initialize_psymtab): Update. * symmisc.c (maintenance_check_symtabs): New function. (maintenance_expand_name_matcher): New function (maintenance_expand_file_matcher): New function (maintenance_expand_symtabs): New function. (_initialize_symmisc): Add "mt check-symtabs" and "mt expand-symtabs" commands. doc/ * gdb.texinfo (Maintenance Commands): Update doc for "maint check-psymtabs". Add doc for "maint check-symtabs", "maint expand-symtabs". testsuite/ * gdb.base/maint.exp: Update test for "maint check-psymtabs". Add tests for "maint check-symtabs", "maint expand-symtabs".
Diffstat (limited to 'gdb/symmisc.c')
-rw-r--r--gdb/symmisc.c138
1 files changed, 138 insertions, 0 deletions
diff --git a/gdb/symmisc.c b/gdb/symmisc.c
index 52c934a..eb8bbbf 100644
--- a/gdb/symmisc.c
+++ b/gdb/symmisc.c
@@ -771,6 +771,134 @@ maintenance_info_symtabs (char *regexp, int from_tty)
printf_filtered ("}\n");
}
}
+
+/* Check consistency of symtabs.
+ An example of what this checks for is NULL blockvectors.
+ They can happen if there's a bug during debug info reading.
+ GDB assumes they are always non-NULL.
+
+ Note: This does not check for psymtab vs symtab consistency.
+ Use "maint check-psymtabs" for that. */
+
+static void
+maintenance_check_symtabs (char *ignore, int from_tty)
+{
+ struct program_space *pspace;
+ struct objfile *objfile;
+
+ ALL_PSPACES (pspace)
+ ALL_PSPACE_OBJFILES (pspace, objfile)
+ {
+ struct symtab *symtab;
+
+ /* We don't want to print anything for this objfile until we
+ actually find something worth printing. */
+ int printed_objfile_start = 0;
+
+ ALL_OBJFILE_SYMTABS (objfile, symtab)
+ {
+ int found_something = 0;
+
+ QUIT;
+
+ if (symtab->blockvector == NULL)
+ found_something = 1;
+ /* Add more checks here. */
+
+ if (found_something)
+ {
+ if (! printed_objfile_start)
+ {
+ printf_filtered ("{ objfile %s ", objfile->name);
+ wrap_here (" ");
+ printf_filtered ("((struct objfile *) %s)\n",
+ host_address_to_string (objfile));
+ printed_objfile_start = 1;
+ }
+ printf_filtered (" { symtab %s\n",
+ symtab_to_filename_for_display (symtab));
+ if (symtab->blockvector == NULL)
+ printf_filtered (" NULL blockvector\n");
+ printf_filtered (" }\n");
+ }
+ }
+
+ if (printed_objfile_start)
+ printf_filtered ("}\n");
+ }
+}
+
+/* Helper function for maintenance_expand_symtabs.
+ This is the name_matcher function for expand_symtabs_matching. */
+
+static int
+maintenance_expand_name_matcher (const char *symname, void *data)
+{
+ /* Since we're not searching on symbols, just return TRUE. */
+ return 1;
+}
+
+/* Helper function for maintenance_expand_symtabs.
+ This is the file_matcher function for expand_symtabs_matching. */
+
+static int
+maintenance_expand_file_matcher (const char *filename, void *data,
+ int basenames)
+{
+ const char *regexp = data;
+
+ QUIT;
+
+ /* KISS: Only apply the regexp to the complete file name. */
+ if (basenames)
+ return 0;
+
+ if (regexp == NULL || re_exec (filename))
+ return 1;
+
+ return 0;
+}
+
+/* Expand all symbol tables whose name matches an optional regexp. */
+
+static void
+maintenance_expand_symtabs (char *args, int from_tty)
+{
+ struct program_space *pspace;
+ struct objfile *objfile;
+ struct cleanup *cleanups;
+ char **argv;
+ char *regexp = NULL;
+
+ /* We use buildargv here so that we handle spaces in the regexp
+ in a way that allows adding more arguments later. */
+ argv = gdb_buildargv (args);
+ cleanups = make_cleanup_freeargv (argv);
+
+ if (argv != NULL)
+ {
+ if (argv[0] != NULL)
+ {
+ regexp = argv[0];
+ if (argv[1] != NULL)
+ error (_("Extra arguments after regexp."));
+ }
+ }
+
+ if (regexp)
+ re_comp (regexp);
+
+ ALL_PSPACES (pspace)
+ ALL_PSPACE_OBJFILES (pspace, objfile)
+ {
+ if (objfile->sf)
+ {
+ objfile->sf->qf->expand_symtabs_matching
+ (objfile, maintenance_expand_file_matcher,
+ maintenance_expand_name_matcher, ALL_DOMAIN, regexp);
+ }
+ }
+}
/* Return the nexting depth of a block within other blocks in its symtab. */
@@ -819,4 +947,14 @@ This does not include information about individual symbols, blocks, or\n\
linetables --- just the symbol table structures themselves.\n\
With an argument REGEXP, list the symbol tables whose names that match that."),
&maintenanceinfolist);
+
+ add_cmd ("check-symtabs", class_maintenance, maintenance_check_symtabs,
+ _("\
+Check consistency of currently expanded symtabs."),
+ &maintenancelist);
+
+ add_cmd ("expand-symtabs", class_maintenance, maintenance_expand_symtabs,
+ _("Expand symbol tables.\n\
+With an argument REGEXP, only expand the symbol tables with matching names."),
+ &maintenancelist);
}