diff options
| -rw-r--r-- | gdb/ChangeLog | 7 | ||||
| -rw-r--r-- | gdb/NEWS | 4 | ||||
| -rw-r--r-- | gdb/doc/ChangeLog | 5 | ||||
| -rw-r--r-- | gdb/doc/python.texi | 41 | ||||
| -rw-r--r-- | gdb/python/py-breakpoint.c | 134 | ||||
| -rw-r--r-- | gdb/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gdb/testsuite/gdb.python/py-breakpoint.c | 2 | ||||
| -rw-r--r-- | gdb/testsuite/gdb.python/py-breakpoint.exp | 80 |
8 files changed, 245 insertions, 33 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog index 4d42cf9..9ba0254 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,3 +1,10 @@ +2017-12-07 Phil Muldoon <pmuldoon@redhat.com> + + * python/py-breakpoint.c (bppy_init): Use string_to_event_location + over basic location code. Implement explicit location keywords. + (bppy_init_validate_args): New function. + * NEWS: Document Python explicit breakpoint locations. + 2017-12-07 Joel Brobecker <brobecker@adacore.com> * MAINTAINERS: Restore target entries for m68hc11-elf, @@ -115,6 +115,10 @@ command allows the setting of a large number of breakpoints via a regex pattern in Python. See the manual for further details. + ** Python breakpoints can now accept explicit locations. See the + manual for a further description of this feature. + + * New features in the GDB remote stub, GDBserver ** GDBserver is now able to start inferior processes with a diff --git a/gdb/doc/ChangeLog b/gdb/doc/ChangeLog index a108427..419efc4 100644 --- a/gdb/doc/ChangeLog +++ b/gdb/doc/ChangeLog @@ -1,3 +1,8 @@ +2017-12-07 Phil Muldoon <pmuldoon@redhat.com> + + * python.texi (Breakpoints In Python): Add text relating + to allowed explicit locations and keywords in gdb.Breakpoints. + 2017-12-04 Tom Tromey <tom@tromey.com> * gdb.texinfo (Rust): Update trait object status diff --git a/gdb/doc/python.texi b/gdb/doc/python.texi index f411f60..28a7a1a 100644 --- a/gdb/doc/python.texi +++ b/gdb/doc/python.texi @@ -4878,27 +4878,30 @@ represented as Python @code{Long} values. Python code can manipulate breakpoints via the @code{gdb.Breakpoint} class. -@defun Breakpoint.__init__ (spec @r{[}, type @r{[}, wp_class @r{[},internal @r{[},temporary@r{]]]]}) +@defun Breakpoint.__init__ (spec @r{[}, type @r{[}, wp_class @r{[}, internal @r{[}, temporary @r{]}, source @r{]}, function @r{]}, label @r{]}, line @r{]]]]]]]]}) Create a new breakpoint according to @var{spec}, which is a string naming the location of the breakpoint, or an expression that defines a -watchpoint. The contents can be any location recognized by the -@code{break} command, or in the case of a watchpoint, by the -@code{watch} command. The optional @var{type} denotes the breakpoint -to create from the types defined later in this chapter. This argument -can be either @code{gdb.BP_BREAKPOINT} or @code{gdb.BP_WATCHPOINT}; it -defaults to @code{gdb.BP_BREAKPOINT}. The optional @var{internal} -argument allows the breakpoint to become invisible to the user. The -breakpoint will neither be reported when created, nor will it be -listed in the output from @code{info breakpoints} (but will be listed -with the @code{maint info breakpoints} command). The optional -@var{temporary} argument makes the breakpoint a temporary breakpoint. -Temporary breakpoints are deleted after they have been hit. Any -further access to the Python breakpoint after it has been hit will -result in a runtime error (as that breakpoint has now been -automatically deleted). The optional @var{wp_class} argument defines -the class of watchpoint to create, if @var{type} is -@code{gdb.BP_WATCHPOINT}. If a watchpoint class is not provided, it -is assumed to be a @code{gdb.WP_WRITE} class. +watchpoint. The contents can be any location recognized by the +@code{break} command or, in the case of a watchpoint, by the +@code{watch} command. Alternatively, create a new a explicit location +breakpoint (@pxref{Explicit Locations}) according to the +specifications contained in the key words @var{source}, +@var{function}, @var{label} and @var{line}. The optional @var{type} +denotes the breakpoint to create from the types defined later in this +chapter. This argument can be either @code{gdb.BP_BREAKPOINT} or +@code{gdb.BP_WATCHPOINT}; it defaults to @code{gdb.BP_BREAKPOINT}. +The optional @var{internal} argument allows the breakpoint to become +invisible to the user. The breakpoint will neither be reported when +created, nor will it be listed in the output from @code{info +breakpoints} (but will be listed with the @code{maint info +breakpoints} command). The optional @var{temporary} argument makes +the breakpoint a temporary breakpoint. Temporary breakpoints are +deleted after they have been hit. Any further access to the Python +breakpoint after it has been hit will result in a runtime error (as +that breakpoint has now been automatically deleted). The optional +@var{wp_class} argument defines the class of watchpoint to create, if +@var{type} is @code{gdb.BP_WATCHPOINT}. If a watchpoint class is not +provided, it is assumed to be a @code{gdb.WP_WRITE} class. @end defun The available types are represented by constants defined in the @code{gdb} diff --git a/gdb/python/py-breakpoint.c b/gdb/python/py-breakpoint.c index 2574683..f865317 100644 --- a/gdb/python/py-breakpoint.c +++ b/gdb/python/py-breakpoint.c @@ -32,6 +32,7 @@ #include "language.h" #include "location.h" #include "py-event.h" +#include "linespec.h" /* Number of live breakpoints. */ static int bppy_live; @@ -631,25 +632,104 @@ bppy_get_ignore_count (PyObject *self, void *closure) return PyInt_FromLong (self_bp->bp->ignore_count); } +/* Internal function to validate the Python parameters/keywords + provided to bppy_init. */ + +static int +bppy_init_validate_args (const char *spec, char *source, + char *function, char *label, + char *line, enum bptype type) +{ + /* If spec is defined, ensure that none of the explicit location + keywords are also defined. */ + if (spec != NULL) + { + if (source != NULL || function != NULL || label != NULL || line != NULL) + { + PyErr_SetString (PyExc_RuntimeError, + _("Breakpoints specified with spec cannot " + "have source, function, label or line defined.")); + return -1; + } + } + else + { + /* If spec isn't defined, ensure that the user is not trying to + define a watchpoint with an explicit location. */ + if (type == bp_watchpoint) + { + PyErr_SetString (PyExc_RuntimeError, + _("Watchpoints cannot be set by explicit " + "location parameters.")); + return -1; + } + else + { + /* Otherwise, ensure some explicit locations are defined. */ + if (source == NULL && function == NULL && label == NULL + && line == NULL) + { + PyErr_SetString (PyExc_RuntimeError, + _("Neither spec nor explicit location set.")); + return -1; + } + /* Finally, if source is specified, ensure that line, label + or function are specified too. */ + if (source != NULL && function == NULL && label == NULL + && line == NULL) + { + PyErr_SetString (PyExc_RuntimeError, + _("Specifying a source must also include a " + "line, label or function.")); + return -1; + } + } + } + return 1; +} + /* Python function to create a new breakpoint. */ static int bppy_init (PyObject *self, PyObject *args, PyObject *kwargs) { static const char *keywords[] = { "spec", "type", "wp_class", "internal", - "temporary", NULL }; - const char *spec; - int type = bp_breakpoint; + "temporary","source", "function", + "label", "line", NULL }; + const char *spec = NULL; + enum bptype type = bp_breakpoint; int access_type = hw_write; PyObject *internal = NULL; PyObject *temporary = NULL; + PyObject *lineobj = NULL;; int internal_bp = 0; int temporary_bp = 0; + gdb::unique_xmalloc_ptr<char> line; + char *label = NULL; + char *source = NULL; + char *function = NULL; - if (!gdb_PyArg_ParseTupleAndKeywords (args, kwargs, "s|iiOO", keywords, + if (!gdb_PyArg_ParseTupleAndKeywords (args, kwargs, "|siiOOsssO", keywords, &spec, &type, &access_type, - &internal, &temporary)) + &internal, + &temporary, &source, + &function, &label, &lineobj)) return -1; + + if (lineobj != NULL) + { + if (PyInt_Check (lineobj)) + line.reset (xstrprintf ("%ld", PyInt_AsLong (lineobj))); + else if (PyString_Check (lineobj)) + line = python_string_to_host_string (lineobj); + else + { + PyErr_SetString (PyExc_RuntimeError, + _("Line keyword should be an integer or a string. ")); + return -1; + } + } + if (internal) { internal_bp = PyObject_IsTrue (internal); @@ -664,23 +744,47 @@ bppy_init (PyObject *self, PyObject *args, PyObject *kwargs) return -1; } + if (bppy_init_validate_args (spec, source, function, label, line.get (), + type) == -1) + return -1; + bppy_pending_object = (gdbpy_breakpoint_object *) self; bppy_pending_object->number = -1; bppy_pending_object->bp = NULL; TRY { - gdb::unique_xmalloc_ptr<char> - copy_holder (xstrdup (skip_spaces (spec))); - const char *copy = copy_holder.get (); - switch (type) { case bp_breakpoint: { - event_location_up location - = string_to_event_location_basic (©, current_language, - symbol_name_match_type::WILD); + event_location_up location; + + if (spec != NULL) + { + gdb::unique_xmalloc_ptr<char> + copy_holder (xstrdup (skip_spaces (spec))); + const char *copy = copy_holder.get (); + + location = string_to_event_location (©, + current_language); + } + else + { + struct explicit_location explicit_loc; + + initialize_explicit_location (&explicit_loc); + explicit_loc.source_filename = source; + explicit_loc.function_name = function; + explicit_loc.label_name = label; + + if (line != NULL) + explicit_loc.line_offset = + linespec_parse_line_offset (line.get ()); + + location = new_explicit_location (&explicit_loc); + } + create_breakpoint (python_gdbarch, location.get (), NULL, -1, NULL, 0, @@ -691,8 +795,12 @@ bppy_init (PyObject *self, PyObject *args, PyObject *kwargs) 0, 1, internal_bp, 0); break; } - case bp_watchpoint: + case bp_watchpoint: { + gdb::unique_xmalloc_ptr<char> + copy_holder (xstrdup (skip_spaces (spec))); + char *copy = copy_holder.get (); + if (access_type == hw_write) watch_command_wrapper (copy, 0, internal_bp); else if (access_type == hw_access) diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog index 326af54..87547cb 100644 --- a/gdb/testsuite/ChangeLog +++ b/gdb/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2017-12-07 Phil Muldoon <pmuldoon@redhat.com> + + * gdb.python/py-breakpoint.exp (test_bkpt_explicit_loc): Add new + tests for explicit locations. + 2017-12-06 Pedro Alves <palves@redhat.com> * gdb.arch/i386-avx.exp: If testing with a RSP target, check diff --git a/gdb/testsuite/gdb.python/py-breakpoint.c b/gdb/testsuite/gdb.python/py-breakpoint.c index df6163e..562cab3 100644 --- a/gdb/testsuite/gdb.python/py-breakpoint.c +++ b/gdb/testsuite/gdb.python/py-breakpoint.c @@ -24,7 +24,7 @@ int multiply (int i) int add (int i) { - return i + i; + return i + i; /* Break at function add. */ } diff --git a/gdb/testsuite/gdb.python/py-breakpoint.exp b/gdb/testsuite/gdb.python/py-breakpoint.exp index 6c39f13..e89b9b8 100644 --- a/gdb/testsuite/gdb.python/py-breakpoint.exp +++ b/gdb/testsuite/gdb.python/py-breakpoint.exp @@ -531,6 +531,85 @@ proc_with_prefix test_bkpt_events {} { check_last_event breakpoint_deleted } +proc test_bkpt_explicit_loc {} { + global srcfile testfile + + with_test_prefix test_bkpt_invisible { + # Start with a fresh gdb. + clean_restart ${testfile} + + if ![runto_main] then { + fail "cannot run to main." + return 0 + } + + delete_breakpoints + + set bp_location1 [gdb_get_line_number "Break at multiply."] + set bp_location2 [gdb_get_line_number "Break at add."] + + gdb_py_test_silent_cmd "python bp1 = gdb.Breakpoint (line=$bp_location1)" \ + "set explicit breakpoint by line" 0 + gdb_continue_to_breakpoint "break at multiply for explicit line" \ + ".*Break at multiply.*" + + gdb_py_test_silent_cmd "python bp1 = gdb.Breakpoint (line=\"+1\")" \ + "set explicit breakpoint by relative line" 0 + gdb_continue_to_breakpoint "break at add for relative line" \ + ".*Break at add.*" + + delete_breakpoints + gdb_py_test_silent_cmd "python bp1 = gdb.Breakpoint (line=\"-1\")" \ + "set explicit breakpoint by relative negative line" 0 + gdb_continue_to_breakpoint "break at multiply for negative line" \ + ".*Break at multiply.*" + + delete_breakpoints + gdb_test "python bp1 = gdb.Breakpoint (line=bp1)" \ + "RuntimeError: Line keyword should be an integer or a string.*" \ + "set explicit breakpoint by invalid line type" + + delete_breakpoints + gdb_py_test_silent_cmd "python bp1 = gdb.Breakpoint (function=\"add\")" \ + "set explicit breakpoint by function" 0 + gdb_continue_to_breakpoint "break at function add for function" \ + ".*Break at function add.*" + + delete_breakpoints + gdb_py_test_silent_cmd "python bp1 = gdb.Breakpoint (source=\"$srcfile\", function=\"add\")" \ + "set explicit breakpoint by source file and function" 0 + gdb_continue_to_breakpoint "break at function add for source and function" \ + ".*Break at function add.*" + + delete_breakpoints + gdb_py_test_silent_cmd "python bp1 = gdb.Breakpoint (source=\"$srcfile\", line=\"$bp_location2\")" \ + "set explicit breakpoint by source file and line number" 0 + gdb_continue_to_breakpoint "break at add for source and line" \ + ".*Break at add.*" + + delete_breakpoints + gdb_py_test_silent_cmd "python bp1 = gdb.Breakpoint (\"-source $srcfile -line $bp_location2\")" \ + "set explicit breakpoint by source file and line number in spec" 0 + gdb_continue_to_breakpoint "break at add for source and line in spec" \ + ".*Break at add.*" + + delete_breakpoints + gdb_test "python bp1 = gdb.Breakpoint (source=\"$srcfile\")" \ + "RuntimeError: Specifying a source must also include a line, label or function.*" \ + "set invalid explicit breakpoint by source only" + + gdb_test "python bp1 = gdb.Breakpoint (source=\"foo.c\", line=\"5\")" \ + "No source file named foo.*" \ + "set invalid explicit breakpoint by missing source and line" + gdb_test "python bp1 = gdb.Breakpoint (source=\"$srcfile\", line=\"900\")" \ + "No line 900 in file \"$srcfile\".*" \ + "set invalid explicit breakpoint by source and invalid line" + gdb_test "python bp1 = gdb.Breakpoint (function=\"blah\")" \ + "Function \"blah\" not defined.*" \ + "set invalid explicit breakpoint by missing function" + } +} + test_bkpt_basic test_bkpt_deletion test_bkpt_cond_and_cmds @@ -542,3 +621,4 @@ test_bkpt_temporary test_bkpt_address test_bkpt_pending test_bkpt_events +test_bkpt_explicit_loc |