% gdb -q ''
... or ...
% gdb -q
(gdb) file ''
... both cause GDB to crash with an invalid free. This is because
exec_file_attach is attempting to free a string that has not been
allocated. The string is only allocated if openp is successful.
But in the case of this obviously invalid filename, openp fails,
and leaves scratch_pathname uninitialized, thus causing the xfree
to fail.
The fix is to enable the associated cleanup after we have verified
that openp was successful.
gdb/ChangeLog (By Keith Seitz <keiths@redhat.com>):
* exec.c (exec_file_attach): Move cleanup after verifying that
memory has in fact been allocated.
gdb/testsuite/ChangeLog:
* gdb.base/empty_exe.exp: New testcase.
2012-11-26 Maxime Villard <rustyBSD@gmx.fr>
Pedro Alves <palves@redhat.com>
* common/linux-osdata.c (linux_xfer_osdata_fds): Decrease buffer
size parameter passed to readlink by one byte.
* fbsd-nat.c (fbsd_pid_to_exec_file): Ditto.
* linux-nat.c (linux_child_pid_to_exec_file): Ditto.
* nbsd-nat.c (nbsd_pid_to_exec_file): Ditto.
* inf-child.c (inf_child_fileio_readlink): Decrease local buffer's
size by one byte.
gdb/gdbserver/
2012-11-26 Maxime Villard <rustyBSD@gmx.fr>
* hostio.c (handle_readlink): Decrease buffer size
parameter passed to readlink by one byte.
There are a bunch of aliases that get used with help, but the current
command completion logic does not include those when doing completions.
Since the framework is already mostly in place, extend complete_on_cmdlist
slightly to pass down the ignore_help_classes flag like is done with the
existing lookup command logic.
Now you can do:
(gdb) help use<tab>
and get back:
(gdb) help user-defined
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* cp-namespace.c (cp_lookup_symbol_in_namespace): Add SEARCH
parameter and pass it to lookup_symbol_file.
(cp_lookup_symbol_imports): Tell cp_lookup_symbol_in_namespace
to search base classes.
(cp_lookup_symbol_namespace): Likewise.
(lookup_namespace_scope): Likewise.
(lookup_symbol_file): Add SEARCH parameter.
If SEARCH is non-zero and no symbol is found, lookup the class
and call cp_lookup_nested_symbol.
(find_symbol_in_baseclass): New function.
(cp_lookup_nested_symbol): Do not let
cp_lookup_symbol_in_namespace search through base classes.
Do that later when there is no global symbol match.
PR c++/13615
* gdb.cp/baseenum.cc: New file.
* gdb.cp/baseenum.exp: New file.
* gdb.cp/derivation.cc (A): Add copyright.
Add a typedef.
(B): Use A::value_type instead of int. Change all references.
(D): Use value_type instead of int. Change all references.
(E): Likewise.
(F); Likewise.
(Z): New class.
(ZZ): New class.
(N, Base, Derived): New namespace and classes.
(main): Add instances of Z and ZZ.
Make sure all symbols from N are kept.
* gdb.cp/derivation.exp: Update typedef changes in tests.
Add tests for class typedefs both before and after starting
the inferior.
Add tests for searching for a typedef while stopped in a
method.
(get_init_files): If --data-directory is provided,
and SYSTEM_GDBINIT lives in data-directory, look for it there.
* NEWS: Mention it.
doc/
* gdb.texinfo (System-wide configuration): If the system-wide init
file lives in the data-directory, and --data-directory is provided,
look for it there.
ARI fixes: move gdb_wait and gdb_stat headers to common subdirectory.
* gdb_stat.h: Delete. Moved to common directory.
* common/gdb_stat.h: New file.
* gdb_wait.h: Delete. Moved to common directory.
* common/gdb_wait.h: New file.
* Makefile.in (H_FILES_NO_SRC): Adapt to new header
location.
* contrib/ari/gdb_ari.sh (wait.h rule): Adapt to new gdb_wait.h
location.
(stat.h rule): Adapt to new gdb_stat.h location.
* common/linux-osdata.c: Include "gdb_stat.h" header instead of
<sys/stat.h> header.
* common/linux-ptrace.c: Include "gdb_wait.h" header instead of
<sys/wait.h> header.
gdbserver ChangeLog entry:
2012-11-15 Pierre Muller <muller@sourceware.org>
* configure.ac (AC_CHECK_HEADERS): Add wait.h header.
* config.in: Regenerate.
* configure: Regenerate.
* linux-low.c: Use "gdb_stat.h" header instead of <sys/stat.h> header.
Use "gdb_wait.h" header instead of <sys/wait.h> header.
* lynx-low.c: Use "gdb_wait.h" header instead of <sys/wait.h> header.
* remote-utils.c: Use "gdb_stat.h" header instead of <sys/stat.h>
header.
* server.c: Remove HAVE_WAIT_H conditional. Use "gdb_wait.h" header
instead of <sys/wait.h> header.
* spu-low.c: Use "gdb_wait.h" header instead of <sys/wait.h> header.
2012-11-14 Daniel Jacobowitz <dan@codesourcery.com>
Yao Qi <yao@codesourcery.com>
* arm-tdep.c (arm_addr_bits_remove): Do not adjust the low
bit of EXC_RETURN.
(arm_m_exception_cache, arm_m_exception_this_id)
(arm_m_exception_prev_register, arm_m_exception_unwind_sniffer)
(arm_m_exception_unwind): New.
(arm_gdbarch_init): Register arm_m_exception_unwind.
* mi/mi-main.c (mi_cmd_data_write_memory): Handle additional
parameter COUNT, for pattern filling of memory regions.
* NEWS: Mention it.
doc
* gdb.texinfo (GDB/MI Data Manipulation): Document new optional
parameter "count" of -data-write-memory-bytes, and add an example.
testsuite
* gdb.mi/mi-fill-memory.exp: New test.
* disasm.c (do_mixed_source_and_assembly): Pass filename flag on
to print_source_lines ().
* symtab.h (PRINT_SOURCE_LINES_FILENAME): New print source lines
flag.
* source.c (print_source_lines_base): Prefix source line with
filename if PRINT_SOURCE_LINES_FILENAME flag is set.
gdb/ChangeLog:
* frame.h (frame_register_read): Remove FIXME comment.
* frame.c (frame_register_read): Add suggestion explaining
which function to use in place of this one.
* data-directory/Makefile.in (PYTHON_FILES): Add
type_printers.py.
* python/lib/gdb/command/type_printers.py: New file.
* python/lib/gdb/command/types.py (TypePrinter): New class.
(_get_some_type_recognizers, get_type_recognizers,
apply_type_recognizers, register_type_printer): New
functions.
* python/py-objfile.c (objfile_object) <type_printers>: New
field.
(objfpy_dealloc): Decref new field.
(objfpy_new): Set new field.
(objfpy_get_type_printers, objfpy_set_type_printers): New
functions.
(objfile_to_objfile_object): Set new field.
(objfile_getset): Add "type_printers".
* python/py-progspace.c (pspace_object) <type_printers>: New
field.
(pspy_dealloc): Decref new field.
(pspy_new): Set new field.
(pspy_get_type_printers, pspy_set_type_printers): New functions.
(pspace_to_pspace_object): Set new field.
(pspace_getset): Add "type_printers".
* python/python.c (start_type_printers, apply_type_printers,
free_type_printers): New functions.
(_initialize_python): Set gdb.type_printers.
* python/python.h (start_type_printers, apply_type_printers,
free_type_printers): Declare.
* typeprint.c (type_print_raw_options, default_ptype_flags):
Update for new fields.
(do_free_global_table, create_global_typedef_table,
find_global_typedef): New functions.
(find_typedef_in_hash): Use find_global_typedef.
(whatis_exp): Use create_global_typedef_table. Change cleanup
handling.
* typeprint.h (struct type_print_options) <global_typedefs,
global_printers>: New fields.
doc
* gdb.texinfo (Symbols): Document "info type-printers",
"enable type-printer" and "disable type-printer".
(Python API): Add new node to menu.
(Type Printing API): New node.
(Progspaces In Python): Document type_printers field.
(Objfiles In Python): Likewise.
(gdb.types) <get_type_recognizers, apply_type_recognizers,
register_type_printer, TypePrinter>: Document.
testsuite
* gdb.base/completion.exp: Update for "info type-printers".
* gdb.python/py-typeprint.cc: New file.
* gdb.python/py-typeprint.exp: New file.
* gdb.python/py-typeprint.py: New file.
* c-typeprint.c (c_type_print_base): Handle print_method and
print_typedefs flags.
* gdbcmd.h (setprinttypelist, showprinttypelist): Declare.
* python/py-type.c (typy_str): Use LA_PRINT_TYPE and raw
options.
* typeprint.c (type_print_raw_options, default_ptype_flags):
Update for new field.s
(whatis_exp): Parse flags. Use LA_PRINT_TYPE.
(setprinttypelist, showprinttypelist, print_methods,
print_typedefs): New globals.
(set_print_type, show_print_type, set_print_type_methods,
show_print_type_methods, set_print_type_typedefs,
show_print_type_typedefs): New functions.
(_initialize_typeprint): Update documentation. Add "print
type methods" and "print type typedefs" parameters.
* typeprint.h (struct type_print_options) <print_methods,
print_typedefs>: New fields.
doc
* gdb.texinfo (Symbols): Document "set print type methods",
"set print type typedefs", and flags to ptype and whatis.
* c-valprint.c (c_val_print): For character arrays
with "print null" option on, print ellipses if
the output is truncated and the next character is not \000.
* valprint.c (MAX_WCHARS): Define.
(WCHAR_BUFLEN): Likewise.
(WCHAR_BUFLEN_MAX): Likewise.
(struct converted_character): New structure.
(count_next_character): New function.
(print_converted_chars_to_obstack): New function.
(generic_printstr): Rewrite using count_next_character
and print_converted_chars_to_obstack.
* gdb.base/printcmds.c: Add invalid_XXX globals
for repeated byte tests.
* gdb.base/printcmds.exp (test_repeat_bytes): New procedure.
* gdb.base/wchar.c (main): Add and construct a wchar_t
array with repeated characters.
* gdb.base/wchar.exp: Add repeated character tests.
while executing the gdb command.
(tui_rl_startup_hook): Do not switch back to TUI_SINGLE_KEY_MODE if we
are called from prompt_for_continue.
* tui/tui-io.c (tui_redisplay_readline): Likewise.
gdb/ChangeLog
* source.c (print_source_lines_base): Add fullname field giving
full path to file in mi output.
* NEWS: Mention the new fullname field.
gdb/doc/ChangeLog
* gdb.texinfo (GDB/MI Data Manipulation): Add fullname field to
the example -data-disassemble output. Extend the description of
the -data-disassemble results to document all fields. Document
the cli disassemble command as being related to -data-disassemble.
gdb/testsuite/ChangeLog
* gdb.mi/mi-disassemble.exp: Expect fullname field in mi
disassembly output.
