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gdb/gdb-autoload-09of28.patch

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[patch#4 3/8] auto-load: reshuffle code
http://sourceware.org/ml/gdb-patches/2012-04/msg00087.html
http://sourceware.org/ml/gdb-cvs/2012-04/msg00112.html
Index: gdb-7.4.50.20120120/gdb/auto-load.c
===================================================================
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ gdb-7.4.50.20120120/gdb/auto-load.c 2012-04-18 00:26:29.049120212 +0200
@@ -0,0 +1,472 @@
+/* GDB routines for supporting auto-loaded scripts.
+
+ Copyright (C) 2012 Free Software Foundation, Inc.
+
+ This file is part of GDB.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#include "defs.h"
+#include "auto-load.h"
+#include "progspace.h"
+#include "python/python.h"
+#include "gdb_regex.h"
+#include "ui-out.h"
+#include "filenames.h"
+#include "command.h"
+#include "observer.h"
+#include "objfiles.h"
+#include "python/python-internal.h"
+
+/* Internal-use flag to enable/disable auto-loading.
+ This is true if we should auto-load python code when an objfile is opened,
+ false otherwise.
+
+ Both auto_load_scripts && gdbpy_global_auto_load must be true to enable
+ auto-loading.
+
+ This flag exists to facilitate deferring auto-loading during start-up
+ until after ./.gdbinit has been read; it may augment the search directories
+ used to find the scripts. */
+int gdbpy_global_auto_load = 1;
+
+/* For scripts specified in .debug_gdb_scripts, multiple objfiles may load
+ the same script. There's no point in loading the script multiple times,
+ and there can be a lot of objfiles and scripts, so we keep track of scripts
+ loaded this way. */
+
+struct auto_load_pspace_info
+{
+ /* For each program space we keep track of loaded scripts. */
+ struct htab *loaded_scripts;
+
+ /* Non-zero if we've issued the warning about an auto-load script not being
+ found. We only want to issue this warning once. */
+ int script_not_found_warning_printed;
+};
+
+/* Objects of this type are stored in the loaded script hash table. */
+
+struct loaded_script
+{
+ /* Name as provided by the objfile. */
+ const char *name;
+ /* Full path name or NULL if script wasn't found (or was otherwise
+ inaccessible). */
+ const char *full_path;
+};
+
+/* Per-program-space data key. */
+static const struct program_space_data *auto_load_pspace_data;
+
+static void
+auto_load_pspace_data_cleanup (struct program_space *pspace, void *arg)
+{
+ struct auto_load_pspace_info *info;
+
+ info = program_space_data (pspace, auto_load_pspace_data);
+ if (info != NULL)
+ {
+ if (info->loaded_scripts)
+ htab_delete (info->loaded_scripts);
+ xfree (info);
+ }
+}
+
+/* Get the current autoload data. If none is found yet, add it now. This
+ function always returns a valid object. */
+
+static struct auto_load_pspace_info *
+get_auto_load_pspace_data (struct program_space *pspace)
+{
+ struct auto_load_pspace_info *info;
+
+ info = program_space_data (pspace, auto_load_pspace_data);
+ if (info == NULL)
+ {
+ info = XZALLOC (struct auto_load_pspace_info);
+ set_program_space_data (pspace, auto_load_pspace_data, info);
+ }
+
+ return info;
+}
+
+/* Hash function for the loaded script hash. */
+
+static hashval_t
+hash_loaded_script_entry (const void *data)
+{
+ const struct loaded_script *e = data;
+
+ return htab_hash_string (e->name);
+}
+
+/* Equality function for the loaded script hash. */
+
+static int
+eq_loaded_script_entry (const void *a, const void *b)
+{
+ const struct loaded_script *ea = a;
+ const struct loaded_script *eb = b;
+
+ return strcmp (ea->name, eb->name) == 0;
+}
+
+/* Initialize the table to track loaded scripts.
+ Each entry is hashed by the full path name. */
+
+static void
+init_loaded_scripts_info (struct auto_load_pspace_info *pspace_info)
+{
+ /* Choose 31 as the starting size of the hash table, somewhat arbitrarily.
+ Space for each entry is obtained with one malloc so we can free them
+ easily. */
+
+ pspace_info->loaded_scripts = htab_create (31,
+ hash_loaded_script_entry,
+ eq_loaded_script_entry,
+ xfree);
+
+ pspace_info->script_not_found_warning_printed = FALSE;
+}
+
+/* Wrapper on get_auto_load_pspace_data to also allocate the hash table
+ for loading scripts. */
+
+struct auto_load_pspace_info *
+get_auto_load_pspace_data_for_loading (struct program_space *pspace)
+{
+ struct auto_load_pspace_info *info;
+
+ info = get_auto_load_pspace_data (pspace);
+ if (info->loaded_scripts == NULL)
+ init_loaded_scripts_info (info);
+
+ return info;
+}
+
+/* Add script NAME to hash table of PSPACE_INFO.
+ FULL_PATH is NULL if the script wasn't found.
+ The result is true if the script was already in the hash table. */
+
+int
+maybe_add_script (struct auto_load_pspace_info *pspace_info, const char *name,
+ const char *full_path)
+{
+ struct htab *htab = pspace_info->loaded_scripts;
+ struct loaded_script **slot, entry;
+ int in_hash_table;
+
+ entry.name = name;
+ entry.full_path = full_path;
+ slot = (struct loaded_script **) htab_find_slot (htab, &entry, INSERT);
+ in_hash_table = *slot != NULL;
+
+ /* If this script is not in the hash table, add it. */
+
+ if (! in_hash_table)
+ {
+ char *p;
+
+ /* Allocate all space in one chunk so it's easier to free. */
+ *slot = xmalloc (sizeof (**slot)
+ + strlen (name) + 1
+ + (full_path != NULL ? (strlen (full_path) + 1) : 0));
+ p = ((char*) *slot) + sizeof (**slot);
+ strcpy (p, name);
+ (*slot)->name = p;
+ if (full_path != NULL)
+ {
+ p += strlen (p) + 1;
+ strcpy (p, full_path);
+ (*slot)->full_path = p;
+ }
+ else
+ (*slot)->full_path = NULL;
+ }
+
+ return in_hash_table;
+}
+
+/* Clear the table of loaded section scripts. */
+
+static void
+clear_section_scripts (void)
+{
+ struct program_space *pspace = current_program_space;
+ struct auto_load_pspace_info *info;
+
+ info = program_space_data (pspace, auto_load_pspace_data);
+ if (info != NULL && info->loaded_scripts != NULL)
+ {
+ htab_delete (info->loaded_scripts);
+ info->loaded_scripts = NULL;
+ info->script_not_found_warning_printed = FALSE;
+ }
+}
+
+/* Look for the auto-load script associated with OBJFILE and load it. */
+
+void
+auto_load_objfile_script (struct objfile *objfile, const char *suffix)
+{
+ char *realname;
+ char *filename, *debugfile;
+ int len;
+ FILE *input;
+ struct cleanup *cleanups;
+
+ realname = gdb_realpath (objfile->name);
+ len = strlen (realname);
+ filename = xmalloc (len + strlen (suffix) + 1);
+ memcpy (filename, realname, len);
+ strcpy (filename + len, suffix);
+
+ cleanups = make_cleanup (xfree, filename);
+ make_cleanup (xfree, realname);
+
+ input = fopen (filename, "r");
+ debugfile = filename;
+
+ if (!input && debug_file_directory)
+ {
+ /* Also try the same file in the separate debug info directory. */
+ debugfile = xmalloc (strlen (filename)
+ + strlen (debug_file_directory) + 1);
+ strcpy (debugfile, debug_file_directory);
+ /* FILENAME is absolute, so we don't need a "/" here. */
+ strcat (debugfile, filename);
+
+ make_cleanup (xfree, debugfile);
+ input = fopen (debugfile, "r");
+ }
+
+ if (!input && gdb_datadir)
+ {
+ /* Also try the same file in a subdirectory of gdb's data
+ directory. */
+ debugfile = xmalloc (strlen (gdb_datadir) + strlen (filename)
+ + strlen ("/auto-load") + 1);
+ strcpy (debugfile, gdb_datadir);
+ strcat (debugfile, "/auto-load");
+ /* FILENAME is absolute, so we don't need a "/" here. */
+ strcat (debugfile, filename);
+
+ make_cleanup (xfree, debugfile);
+ input = fopen (debugfile, "r");
+ }
+
+ if (input)
+ {
+ struct auto_load_pspace_info *pspace_info;
+
+ make_cleanup_fclose (input);
+
+ /* Add this script to the hash table too so "info auto-load-scripts"
+ can print it. */
+ pspace_info =
+ get_auto_load_pspace_data_for_loading (current_program_space);
+ maybe_add_script (pspace_info, debugfile, debugfile);
+
+ /* To preserve existing behaviour we don't check for whether the
+ script was already in the table, and always load it.
+ It's highly unlikely that we'd ever load it twice,
+ and these scripts are required to be idempotent under multiple
+ loads anyway. */
+ source_python_script_for_objfile (objfile, input, debugfile);
+ }
+
+ do_cleanups (cleanups);
+}
+
+/* This is a new_objfile observer callback to auto-load scripts.
+
+ Two flavors of auto-loaded scripts are supported.
+ 1) based on the path to the objfile
+ 2) from .debug_gdb_scripts section */
+
+static void
+auto_load_new_objfile (struct objfile *objfile)
+{
+ if (!objfile)
+ {
+ /* OBJFILE is NULL when loading a new "main" symbol-file. */
+ clear_section_scripts ();
+ return;
+ }
+
+ load_auto_scripts_for_objfile (objfile);
+}
+
+/* Collect scripts to be printed in a vec. */
+
+typedef struct loaded_script *loaded_script_ptr;
+DEF_VEC_P (loaded_script_ptr);
+
+/* Traversal function for htab_traverse.
+ Collect the entry if it matches the regexp. */
+
+static int
+collect_matching_scripts (void **slot, void *info)
+{
+ struct loaded_script *script = *slot;
+ VEC (loaded_script_ptr) **scripts_ptr = info;
+
+ if (re_exec (script->name))
+ VEC_safe_push (loaded_script_ptr, *scripts_ptr, script);
+
+ return 1;
+}
+
+/* Print SCRIPT. */
+
+static void
+print_script (struct loaded_script *script)
+{
+ struct ui_out *uiout = current_uiout;
+ struct cleanup *chain;
+
+ chain = make_cleanup_ui_out_tuple_begin_end (uiout, NULL);
+
+ ui_out_field_string (uiout, "loaded", script->full_path ? "Yes" : "Missing");
+ ui_out_field_string (uiout, "script", script->name);
+ ui_out_text (uiout, "\n");
+
+ /* If the name isn't the full path, print it too. */
+ if (script->full_path != NULL
+ && strcmp (script->name, script->full_path) != 0)
+ {
+ ui_out_text (uiout, "\tfull name: ");
+ ui_out_field_string (uiout, "full_path", script->full_path);
+ ui_out_text (uiout, "\n");
+ }
+
+ do_cleanups (chain);
+}
+
+/* Helper for info_auto_load_scripts to sort the scripts by name. */
+
+static int
+sort_scripts_by_name (const void *ap, const void *bp)
+{
+ const struct loaded_script *a = *(const struct loaded_script **) ap;
+ const struct loaded_script *b = *(const struct loaded_script **) bp;
+
+ return FILENAME_CMP (a->name, b->name);
+}
+
+/* "info auto-load-scripts" command. */
+
+static void
+info_auto_load_scripts (char *pattern, int from_tty)
+{
+ struct ui_out *uiout = current_uiout;
+ struct auto_load_pspace_info *pspace_info;
+ struct cleanup *script_chain;
+ VEC (loaded_script_ptr) *scripts;
+ int nr_scripts;
+
+ dont_repeat ();
+
+ pspace_info = get_auto_load_pspace_data (current_program_space);
+
+ if (pattern && *pattern)
+ {
+ char *re_err = re_comp (pattern);
+
+ if (re_err)
+ error (_("Invalid regexp: %s"), re_err);
+ }
+ else
+ {
+ re_comp ("");
+ }
+
+ /* We need to know the number of rows before we build the table.
+ Plus we want to sort the scripts by name.
+ So first traverse the hash table collecting the matching scripts. */
+
+ scripts = VEC_alloc (loaded_script_ptr, 10);
+ script_chain = make_cleanup (VEC_cleanup (loaded_script_ptr), &scripts);
+
+ if (pspace_info != NULL && pspace_info->loaded_scripts != NULL)
+ {
+ immediate_quit++;
+ /* Pass a pointer to scripts as VEC_safe_push can realloc space. */
+ htab_traverse_noresize (pspace_info->loaded_scripts,
+ collect_matching_scripts, &scripts);
+ immediate_quit--;
+ }
+
+ nr_scripts = VEC_length (loaded_script_ptr, scripts);
+ make_cleanup_ui_out_table_begin_end (uiout, 2, nr_scripts,
+ "AutoLoadedScriptsTable");
+
+ ui_out_table_header (uiout, 7, ui_left, "loaded", "Loaded");
+ ui_out_table_header (uiout, 70, ui_left, "script", "Script");
+ ui_out_table_body (uiout);
+
+ if (nr_scripts > 0)
+ {
+ int i;
+ loaded_script_ptr script;
+
+ qsort (VEC_address (loaded_script_ptr, scripts),
+ VEC_length (loaded_script_ptr, scripts),
+ sizeof (loaded_script_ptr), sort_scripts_by_name);
+ for (i = 0; VEC_iterate (loaded_script_ptr, scripts, i, script); ++i)
+ print_script (script);
+ }
+
+ do_cleanups (script_chain);
+
+ if (nr_scripts == 0)
+ {
+ if (pattern && *pattern)
+ ui_out_message (uiout, 0, "No auto-load scripts matching %s.\n",
+ pattern);
+ else
+ ui_out_message (uiout, 0, "No auto-load scripts.\n");
+ }
+}
+
+/* Return non-zero if SCRIPT_NOT_FOUND_WARNING_PRINTED of PSPACE_INFO was unset
+ before calling this function. Always set SCRIPT_NOT_FOUND_WARNING_PRINTED
+ of PSPACE_INFO. */
+
+int
+script_not_found_warning_print (struct auto_load_pspace_info *pspace_info)
+{
+ int retval = !pspace_info->script_not_found_warning_printed;
+
+ pspace_info->script_not_found_warning_printed = 1;
+
+ return retval;
+}
+
+void _initialize_auto_load (void);
+
+void
+_initialize_auto_load (void)
+{
+ auto_load_pspace_data
+ = register_program_space_data_with_cleanup (auto_load_pspace_data_cleanup);
+
+ observer_attach_new_objfile (auto_load_new_objfile);
+
+ add_info ("auto-load-scripts",
+ info_auto_load_scripts,
+ _("Print the list of automatically loaded scripts.\n\
+Usage: info auto-load-scripts [REGEXP]"));
+}
Index: gdb-7.4.50.20120120/gdb/auto-load.h
===================================================================
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ gdb-7.4.50.20120120/gdb/auto-load.h 2012-04-18 00:26:29.049120212 +0200
@@ -0,0 +1,36 @@
+/* GDB routines for supporting auto-loaded scripts.
+
+ Copyright (C) 2012 Free Software Foundation, Inc.
+
+ This file is part of GDB.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#ifndef AUTO_LOAD_H
+#define AUTO_LOAD_H 1
+
+struct program_space;
+
+extern int gdbpy_global_auto_load;
+
+extern struct auto_load_pspace_info *
+ get_auto_load_pspace_data_for_loading (struct program_space *pspace);
+extern int maybe_add_script (struct auto_load_pspace_info *pspace_info,
+ const char *name, const char *full_path);
+extern void auto_load_objfile_script (struct objfile *objfile,
+ const char *suffix);
+extern int
+ script_not_found_warning_print (struct auto_load_pspace_info *pspace_info);
+
+#endif /* AUTO_LOAD_H */
Index: gdb-7.4.50.20120120/gdb/gdb-gdb.gdb.in
===================================================================
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ gdb-7.4.50.20120120/gdb/gdb-gdb.gdb.in 2012-04-18 00:26:29.049120212 +0200
@@ -0,0 +1,34 @@
+echo Setting up the environment for debugging gdb.\n
+
+set complaints 1
+
+b internal_error
+
+b info_command
+commands
+ silent
+ return
+end
+
+dir @srcdir@/../libiberty
+dir @srcdir@/../bfd
+dir @srcdir@
+dir .
+set prompt (top-gdb)
+
+define pdie
+ if $argc == 1
+ call dump_die ($arg0, 1)
+ else
+ if $argc == 2
+ call dump_die ($arg0, $arg1)
+ else
+ printf "Syntax: pdie die [depth]\n"
+ end
+ end
+end
+
+document pdie
+Pretty print a DWARF DIE.
+Syntax: pdie die [depth]
+end
Index: gdb-7.4.50.20120120/gdb/Makefile.in
===================================================================
--- gdb-7.4.50.20120120.orig/gdb/Makefile.in 2012-04-18 00:26:14.000000000 +0200
+++ gdb-7.4.50.20120120/gdb/Makefile.in 2012-04-18 00:26:53.455058037 +0200
@@ -680,7 +680,7 @@ TARGET_FLAGS_TO_PASS = \
# SFILES is used in building the distribution archive.
SFILES = ada-exp.y ada-lang.c ada-typeprint.c ada-valprint.c ada-tasks.c \
- addrmap.c \
+ addrmap.c auto-load.c \
auxv.c ax-general.c ax-gdb.c \
bcache.c \
bfd-target.c \
@@ -819,7 +819,7 @@ solib-darwin.h solib-ia64-hpux.h solib-s
gnulib/extra/arg-nonnull.h gnulib/extra/c++defs.h gnulib/extra/warn-on-use.h \
gnulib/stddef.in.h inline-frame.h skip.h stap-probe.h \
common/common-utils.h common/xml-utils.h common/buffer.h common/ptid.h \
-common/linux-osdata.h gdb-dlfcn.h
+common/linux-osdata.h gdb-dlfcn.h auto-load.h
# Header files that already have srcdir in them, or which are in objdir.
@@ -851,7 +851,7 @@ COMMON_OBS = $(DEPFILES) $(CONFIG_OBS) $
version.o \
annotate.o \
addrmap.o \
- auxv.o \
+ auto-load.o auxv.o \
bfd-target.o \
blockframe.o breakpoint.o findvar.o regcache.o \
charset.o continuations.o corelow.o disasm.o dummy-frame.o dfp.o \
@@ -1255,7 +1255,7 @@ distclean: clean
rm -f gdbserver/config.status gdbserver/config.log
rm -f gdbserver/tm.h gdbserver/xm.h gdbserver/nm.h
rm -f gdbserver/Makefile gdbserver/config.cache
- rm -f nm.h config.status config.h stamp-h .gdbinit jit-reader.h
+ rm -f nm.h config.status config.h stamp-h gdb-gdb.gdb jit-reader.h
rm -f y.output yacc.acts yacc.tmp y.tab.h
rm -f config.log config.cache
rm -f Makefile
Index: gdb-7.4.50.20120120/gdb/configure
===================================================================
--- gdb-7.4.50.20120120.orig/gdb/configure 2012-04-18 00:26:14.000000000 +0200
+++ gdb-7.4.50.20120120/gdb/configure 2012-04-18 00:26:29.053120202 +0200
@@ -16839,7 +16839,7 @@ ac_config_links="$ac_config_links $ac_co
$as_echo "#define GDB_DEFAULT_HOST_CHARSET \"UTF-8\"" >>confdefs.h
-ac_config_files="$ac_config_files Makefile .gdbinit:gdbinit.in doc/Makefile gnulib/Makefile data-directory/Makefile"
+ac_config_files="$ac_config_files Makefile gdb-gdb.gdb doc/Makefile gnulib/Makefile data-directory/Makefile"
ac_config_commands="$ac_config_commands default"
@@ -17605,7 +17605,7 @@ do
"jit-reader.h") CONFIG_FILES="$CONFIG_FILES jit-reader.h:jit-reader.in" ;;
"$ac_config_links_1") CONFIG_LINKS="$CONFIG_LINKS $ac_config_links_1" ;;
"Makefile") CONFIG_FILES="$CONFIG_FILES Makefile" ;;
- ".gdbinit") CONFIG_FILES="$CONFIG_FILES .gdbinit:gdbinit.in" ;;
+ "gdb-gdb.gdb") CONFIG_FILES="$CONFIG_FILES gdb-gdb.gdb" ;;
"doc/Makefile") CONFIG_FILES="$CONFIG_FILES doc/Makefile" ;;
"gnulib/Makefile") CONFIG_FILES="$CONFIG_FILES gnulib/Makefile" ;;
"data-directory/Makefile") CONFIG_FILES="$CONFIG_FILES data-directory/Makefile" ;;
Index: gdb-7.4.50.20120120/gdb/configure.ac
===================================================================
--- gdb-7.4.50.20120120.orig/gdb/configure.ac 2012-04-18 00:26:14.000000000 +0200
+++ gdb-7.4.50.20120120/gdb/configure.ac 2012-04-18 00:26:29.053120202 +0200
@@ -2422,7 +2422,7 @@ dnl At the moment, we just assume it's
AC_DEFINE(GDB_DEFAULT_HOST_CHARSET, "UTF-8",
[Define to be a string naming the default host character set.])
-AC_OUTPUT(Makefile .gdbinit:gdbinit.in doc/Makefile gnulib/Makefile data-directory/Makefile,
+AC_OUTPUT(Makefile gdb-gdb.gdb doc/Makefile gnulib/Makefile data-directory/Makefile,
[
case x$CONFIG_HEADERS in
xconfig.h:config.in)
Index: gdb-7.4.50.20120120/gdb/main.c
===================================================================
--- gdb-7.4.50.20120120.orig/gdb/main.c 2012-04-18 00:26:14.000000000 +0200
+++ gdb-7.4.50.20120120/gdb/main.c 2012-04-18 00:26:29.054120199 +0200
@@ -42,6 +42,7 @@
#include "cli/cli-cmds.h"
#include "python/python.h"
#include "objfiles.h"
+#include "auto-load.h"
/* The selected interpreter. This will be used as a set command
variable, so it should always be malloc'ed - since
Index: gdb-7.4.50.20120120/gdb/python/py-auto-load.c
===================================================================
--- gdb-7.4.50.20120120.orig/gdb/python/py-auto-load.c 2012-04-18 00:26:14.000000000 +0200
+++ gdb-7.4.50.20120120/gdb/python/py-auto-load.c 2012-04-18 00:26:29.054120199 +0200
@@ -18,30 +18,14 @@
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
-#include "filenames.h"
#include "gdb_string.h"
-#include "gdb_regex.h"
#include "top.h"
#include "exceptions.h"
-#include "command.h"
#include "gdbcmd.h"
-#include "observer.h"
-#include "progspace.h"
#include "objfiles.h"
#include "python.h"
#include "cli/cli-cmds.h"
-
-/* Internal-use flag to enable/disable auto-loading.
- This is true if we should auto-load python code when an objfile is opened,
- false otherwise.
-
- Both auto_load_scripts && gdbpy_global_auto_load must be true to enable
- auto-loading.
-
- This flag exists to facilitate deferring auto-loading during start-up
- until after ./.gdbinit has been read; it may augment the search directories
- used to find the scripts. */
-int gdbpy_global_auto_load = 1;
+#include "auto-load.h"
#ifdef HAVE_PYTHON
@@ -60,32 +44,6 @@ int gdbpy_global_auto_load = 1;
The leading byte is to allow upward compatible extensions. */
#define GDBPY_AUTO_SECTION_NAME ".debug_gdb_scripts"
-/* For scripts specified in .debug_gdb_scripts, multiple objfiles may load
- the same script. There's no point in loading the script multiple times,
- and there can be a lot of objfiles and scripts, so we keep track of scripts
- loaded this way. */
-
-struct auto_load_pspace_info
-{
- /* For each program space we keep track of loaded scripts. */
- struct htab *loaded_scripts;
-
- /* Non-zero if we've issued the warning about an auto-load script not being
- found. We only want to issue this warning once. */
- int script_not_found_warning_printed;
-};
-
-/* Objects of this type are stored in the loaded script hash table. */
-
-struct loaded_script
-{
- /* Name as provided by the objfile. */
- const char *name;
- /* Full path name or NULL if script wasn't found (or was otherwise
- inaccessible). */
- const char *full_path;
-};
-
/* User-settable option to enable/disable auto-loading:
set auto-load-scripts on|off
This is true if we should auto-load associated scripts when an objfile
@@ -97,136 +55,6 @@ struct loaded_script
The fact that it lives here is just an implementation detail. */
static int auto_load_scripts = 1;
-/* Per-program-space data key. */
-static const struct program_space_data *auto_load_pspace_data;
-
-static void
-auto_load_pspace_data_cleanup (struct program_space *pspace, void *arg)
-{
- struct auto_load_pspace_info *info;
-
- info = program_space_data (pspace, auto_load_pspace_data);
- if (info != NULL)
- {
- if (info->loaded_scripts)
- htab_delete (info->loaded_scripts);
- xfree (info);
- }
-}
-
-/* Get the current autoload data. If none is found yet, add it now. This
- function always returns a valid object. */
-
-static struct auto_load_pspace_info *
-get_auto_load_pspace_data (struct program_space *pspace)
-{
- struct auto_load_pspace_info *info;
-
- info = program_space_data (pspace, auto_load_pspace_data);
- if (info == NULL)
- {
- info = XZALLOC (struct auto_load_pspace_info);
- set_program_space_data (pspace, auto_load_pspace_data, info);
- }
-
- return info;
-}
-
-/* Hash function for the loaded script hash. */
-
-static hashval_t
-hash_loaded_script_entry (const void *data)
-{
- const struct loaded_script *e = data;
-
- return htab_hash_string (e->name);
-}
-
-/* Equality function for the loaded script hash. */
-
-static int
-eq_loaded_script_entry (const void *a, const void *b)
-{
- const struct loaded_script *ea = a;
- const struct loaded_script *eb = b;
-
- return strcmp (ea->name, eb->name) == 0;
-}
-
-/* Initialize the table to track loaded scripts.
- Each entry is hashed by the full path name. */
-
-static void
-init_loaded_scripts_info (struct auto_load_pspace_info *pspace_info)
-{
- /* Choose 31 as the starting size of the hash table, somewhat arbitrarily.
- Space for each entry is obtained with one malloc so we can free them
- easily. */
-
- pspace_info->loaded_scripts = htab_create (31,
- hash_loaded_script_entry,
- eq_loaded_script_entry,
- xfree);
-
- pspace_info->script_not_found_warning_printed = FALSE;
-}
-
-/* Wrapper on get_auto_load_pspace_data to also allocate the hash table
- for loading scripts. */
-
-static struct auto_load_pspace_info *
-get_auto_load_pspace_data_for_loading (struct program_space *pspace)
-{
- struct auto_load_pspace_info *info;
-
- info = get_auto_load_pspace_data (pspace);
- if (info->loaded_scripts == NULL)
- init_loaded_scripts_info (info);
-
- return info;
-}
-
-/* Add script NAME to hash table HTAB.
- FULL_PATH is NULL if the script wasn't found.
- The result is true if the script was already in the hash table. */
-
-static int
-maybe_add_script (struct htab *htab, const char *name, const char *full_path)
-{
- struct loaded_script **slot, entry;
- int in_hash_table;
-
- entry.name = name;
- entry.full_path = full_path;
- slot = (struct loaded_script **) htab_find_slot (htab, &entry, INSERT);
- in_hash_table = *slot != NULL;
-
- /* If this script is not in the hash table, add it. */
-
- if (! in_hash_table)
- {
- char *p;
-
- /* Allocate all space in one chunk so it's easier to free. */
- *slot = xmalloc (sizeof (**slot)
- + strlen (name) + 1
- + (full_path != NULL ? (strlen (full_path) + 1) : 0));
- p = ((char*) *slot) + sizeof (**slot);
- strcpy (p, name);
- (*slot)->name = p;
- if (full_path != NULL)
- {
- p += strlen (p) + 1;
- strcpy (p, full_path);
- (*slot)->full_path = p;
- }
- else
- (*slot)->full_path = NULL;
- }
-
- return in_hash_table;
-}
-
/* Load scripts specified in OBJFILE.
START,END delimit a buffer containing a list of nul-terminated
file names.
@@ -301,20 +129,17 @@ source_section_scripts (struct objfile *
IWBN if complaints.c were more general-purpose. */
- in_hash_table = maybe_add_script (pspace_info->loaded_scripts, file,
+ in_hash_table = maybe_add_script (pspace_info, file,
opened ? full_path : NULL);
if (! opened)
{
/* We don't throw an error, the program is still debuggable. */
- if (! pspace_info->script_not_found_warning_printed)
- {
- warning (_("Missing auto-load scripts referenced in section %s\n\
+ if (script_not_found_warning_print (pspace_info))
+ warning (_("Missing auto-load scripts referenced in section %s\n\
of file %s\n\
Use `info auto-load-scripts [REGEXP]' to list them."),
- GDBPY_AUTO_SECTION_NAME, objfile->name);
- pspace_info->script_not_found_warning_printed = TRUE;
- }
+ GDBPY_AUTO_SECTION_NAME, objfile->name);
}
else
{
@@ -356,116 +181,6 @@ auto_load_section_scripts (struct objfil
do_cleanups (cleanups);
}
-/* Clear the table of loaded section scripts. */
-
-static void
-clear_section_scripts (void)
-{
- struct program_space *pspace = current_program_space;
- struct auto_load_pspace_info *info;
-
- info = program_space_data (pspace, auto_load_pspace_data);
- if (info != NULL && info->loaded_scripts != NULL)
- {
- htab_delete (info->loaded_scripts);
- info->loaded_scripts = NULL;
- info->script_not_found_warning_printed = FALSE;
- }
-}
-
-/* Look for the auto-load script associated with OBJFILE and load it. */
-
-static void
-auto_load_objfile_script (struct objfile *objfile, const char *suffix)
-{
- char *realname;
- char *filename, *debugfile;
- int len;
- FILE *input;
- struct cleanup *cleanups;
-
- realname = gdb_realpath (objfile->name);
- len = strlen (realname);
- filename = xmalloc (len + strlen (suffix) + 1);
- memcpy (filename, realname, len);
- strcpy (filename + len, suffix);
-
- cleanups = make_cleanup (xfree, filename);
- make_cleanup (xfree, realname);
-
- input = fopen (filename, "r");
- debugfile = filename;
-
- if (!input && debug_file_directory)
- {
- /* Also try the same file in the separate debug info directory. */
- debugfile = xmalloc (strlen (filename)
- + strlen (debug_file_directory) + 1);
- strcpy (debugfile, debug_file_directory);
- /* FILENAME is absolute, so we don't need a "/" here. */
- strcat (debugfile, filename);
-
- make_cleanup (xfree, debugfile);
- input = fopen (debugfile, "r");
- }
-
- if (!input && gdb_datadir)
- {
- /* Also try the same file in a subdirectory of gdb's data
- directory. */
- debugfile = xmalloc (strlen (gdb_datadir) + strlen (filename)
- + strlen ("/auto-load") + 1);
- strcpy (debugfile, gdb_datadir);
- strcat (debugfile, "/auto-load");
- /* FILENAME is absolute, so we don't need a "/" here. */
- strcat (debugfile, filename);
-
- make_cleanup (xfree, debugfile);
- input = fopen (debugfile, "r");
- }
-
- if (input)
- {
- struct auto_load_pspace_info *pspace_info;
-
- make_cleanup_fclose (input);
-
- /* Add this script to the hash table too so "info auto-load-scripts"
- can print it. */
- pspace_info =
- get_auto_load_pspace_data_for_loading (current_program_space);
- maybe_add_script (pspace_info->loaded_scripts, debugfile, debugfile);
-
- /* To preserve existing behaviour we don't check for whether the
- script was already in the table, and always load it.
- It's highly unlikely that we'd ever load it twice,
- and these scripts are required to be idempotent under multiple
- loads anyway. */
- source_python_script_for_objfile (objfile, input, debugfile);
- }
-
- do_cleanups (cleanups);
-}
-
-/* This is a new_objfile observer callback to auto-load scripts.
-
- Two flavors of auto-loaded scripts are supported.
- 1) based on the path to the objfile
- 2) from .debug_gdb_scripts section */
-
-static void
-auto_load_new_objfile (struct objfile *objfile)
-{
- if (!objfile)
- {
- /* OBJFILE is NULL when loading a new "main" symbol-file. */
- clear_section_scripts ();
- return;
- }
-
- load_auto_scripts_for_objfile (objfile);
-}
-
/* Load any auto-loaded scripts for OBJFILE. */
void
@@ -478,146 +193,9 @@ load_auto_scripts_for_objfile (struct ob
}
}
-/* Collect scripts to be printed in a vec. */
-
-typedef struct loaded_script *loaded_script_ptr;
-DEF_VEC_P (loaded_script_ptr);
-
-/* Traversal function for htab_traverse.
- Collect the entry if it matches the regexp. */
-
-static int
-collect_matching_scripts (void **slot, void *info)
-{
- struct loaded_script *script = *slot;
- VEC (loaded_script_ptr) **scripts_ptr = info;
-
- if (re_exec (script->name))
- VEC_safe_push (loaded_script_ptr, *scripts_ptr, script);
-
- return 1;
-}
-
-/* Print SCRIPT. */
-
-static void
-print_script (struct loaded_script *script)
-{
- struct ui_out *uiout = current_uiout;
- struct cleanup *chain;
-
- chain = make_cleanup_ui_out_tuple_begin_end (uiout, NULL);
-
- ui_out_field_string (uiout, "loaded", script->full_path ? "Yes" : "Missing");
- ui_out_field_string (uiout, "script", script->name);
- ui_out_text (uiout, "\n");
-
- /* If the name isn't the full path, print it too. */
- if (script->full_path != NULL
- && strcmp (script->name, script->full_path) != 0)
- {
- ui_out_text (uiout, "\tfull name: ");
- ui_out_field_string (uiout, "full_path", script->full_path);
- ui_out_text (uiout, "\n");
- }
-
- do_cleanups (chain);
-}
-
-/* Helper for info_auto_load_scripts to sort the scripts by name. */
-
-static int
-sort_scripts_by_name (const void *ap, const void *bp)
-{
- const struct loaded_script *a = *(const struct loaded_script **) ap;
- const struct loaded_script *b = *(const struct loaded_script **) bp;
-
- return FILENAME_CMP (a->name, b->name);
-}
-
-/* "info auto-load-scripts" command. */
-
-static void
-info_auto_load_scripts (char *pattern, int from_tty)
-{
- struct ui_out *uiout = current_uiout;
- struct auto_load_pspace_info *pspace_info;
- struct cleanup *script_chain;
- VEC (loaded_script_ptr) *scripts;
- int nr_scripts;
-
- dont_repeat ();
-
- pspace_info = get_auto_load_pspace_data (current_program_space);
-
- if (pattern && *pattern)
- {
- char *re_err = re_comp (pattern);
-
- if (re_err)
- error (_("Invalid regexp: %s"), re_err);
- }
- else
- {
- re_comp ("");
- }
-
- /* We need to know the number of rows before we build the table.
- Plus we want to sort the scripts by name.
- So first traverse the hash table collecting the matching scripts. */
-
- scripts = VEC_alloc (loaded_script_ptr, 10);
- script_chain = make_cleanup (VEC_cleanup (loaded_script_ptr), &scripts);
-
- if (pspace_info != NULL && pspace_info->loaded_scripts != NULL)
- {
- immediate_quit++;
- /* Pass a pointer to scripts as VEC_safe_push can realloc space. */
- htab_traverse_noresize (pspace_info->loaded_scripts,
- collect_matching_scripts, &scripts);
- immediate_quit--;
- }
-
- nr_scripts = VEC_length (loaded_script_ptr, scripts);
- make_cleanup_ui_out_table_begin_end (uiout, 2, nr_scripts,
- "AutoLoadedScriptsTable");
-
- ui_out_table_header (uiout, 7, ui_left, "loaded", "Loaded");
- ui_out_table_header (uiout, 70, ui_left, "script", "Script");
- ui_out_table_body (uiout);
-
- if (nr_scripts > 0)
- {
- int i;
- loaded_script_ptr script;
-
- qsort (VEC_address (loaded_script_ptr, scripts),
- VEC_length (loaded_script_ptr, scripts),
- sizeof (loaded_script_ptr), sort_scripts_by_name);
- for (i = 0; VEC_iterate (loaded_script_ptr, scripts, i, script); ++i)
- print_script (script);
- }
-
- do_cleanups (script_chain);
-
- if (nr_scripts == 0)
- {
- if (pattern && *pattern)
- ui_out_message (uiout, 0, "No auto-load scripts matching %s.\n",
- pattern);
- else
- ui_out_message (uiout, 0, "No auto-load scripts.\n");
- }
-}
-
void
gdbpy_initialize_auto_load (void)
{
- auto_load_pspace_data
- = register_program_space_data_with_cleanup (auto_load_pspace_data_cleanup);
-
- observer_attach_new_objfile (auto_load_new_objfile);
-
add_setshow_boolean_cmd ("auto-load-scripts", class_support,
&auto_load_scripts, _("\
Set the debugger's behaviour regarding auto-loaded scripts."), _("\
@@ -627,11 +205,6 @@ an executable or shared library."),
NULL, NULL,
&setlist,
&showlist);
-
- add_info ("auto-load-scripts",
- info_auto_load_scripts,
- _("Print the list of automatically loaded scripts.\n\
-Usage: info auto-load-scripts [REGEXP]"));
}
#else /* ! HAVE_PYTHON */
Index: gdb-7.4.50.20120120/gdb/python/python.h
===================================================================
--- gdb-7.4.50.20120120.orig/gdb/python/python.h 2012-04-18 00:26:14.000000000 +0200
+++ gdb-7.4.50.20120120/gdb/python/python.h 2012-04-18 00:26:29.054120199 +0200
@@ -24,8 +24,6 @@
struct breakpoint_object;
-extern int gdbpy_global_auto_load;
-
extern void finish_python_initialization (void);
void eval_python_from_control_command (struct command_line *);
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