[nemiver/better-variable-format: 1/8] Backend support for GDB/MI variable format
- From: Dodji Seketeli <dodji src gnome org>
- To: commits-list gnome org
- Cc:
- Subject: [nemiver/better-variable-format: 1/8] Backend support for GDB/MI variable format
- Date: Wed, 2 Mar 2011 18:39:38 +0000 (UTC)
commit f4318604f332fc93b930399b19f51105e28fb7c1
Author: Dodji Seketeli <dodji gnome org>
Date: Mon Aug 30 11:15:55 2010 +0200
Backend support for GDB/MI variable format
* src/dbgengine/nmv-gdbmi-parser.h (parse_variable_format):
Declare new GDBMI parser entry point.
* src/dbgengine/nmv-gdbmi-parser.cc (parse_variable_format):
Define it.
(parse_result_record): Support variable format result record. Use
parse_variable_format.
* src/dbgengine/nmv-i-debugger.h (IDebugger::Variable::Format):
New enum.
(query_variable_format, set_variable_format): Declare new entry
points.
* src/dbgengine/nmv-dbg-common.h (ResultRecord::variable_format)
(ResultRecord::has_variable_format): New accessors to support
variable format in the result record.
* src/dbgengine/nmv-debugger-utils.[cc|h] (string_to_variable_format)
(variable_format_to_string): New (de)serialization functions.
* src/dbgengine/nmv-gdb-engine.h (query_variable_format)
(set_variable_format): Likewise.
* src/dbgengine/nmv-gdb-engine.cc (query_variable_format)
(set_variable_format): Define these.
(struct OnVariableFormatHandler): New output handler.
(init_output_handlers): Add it to the list of output handlers.
* src/dbgengine/Makefile.am: Make the libgdbmod use the static lib
libdebuggerutils.
* tests/test-variable-format.cc: New test.
* tests/Makefile.am: Added new test-variable-format to the build
system. Link runtestgdbmi and runtestvarobjwalker with
libdebuggerutils.la
* tests/fooprog.cc: Add a new func1_1 to test for some variable
value. Used by the new tests/test-variable-format.cc.
src/dbgengine/Makefile.am | 4 +-
src/dbgengine/nmv-dbg-common.h | 25 +++++++++
src/dbgengine/nmv-debugger-utils.cc | 57 +++++++++++++++++++++
src/dbgengine/nmv-debugger-utils.h | 4 ++
src/dbgengine/nmv-gdb-engine.cc | 92 +++++++++++++++++++++++++++++++++++
src/dbgengine/nmv-gdb-engine.h | 8 +++
src/dbgengine/nmv-gdbmi-parser.cc | 76 +++++++++++++++++++++++++++++
src/dbgengine/nmv-gdbmi-parser.h | 5 ++
src/dbgengine/nmv-i-debugger.h | 27 ++++++++++-
tests/Makefile.am | 6 ++-
tests/fooprog.cc | 9 +++-
tests/test-variable-format.cc | 3 +-
12 files changed, 308 insertions(+), 8 deletions(-)
---
diff --git a/src/dbgengine/Makefile.am b/src/dbgengine/Makefile.am
index f1f1d10..8415db2 100644
--- a/src/dbgengine/Makefile.am
+++ b/src/dbgengine/Makefile.am
@@ -95,8 +95,8 @@ publicheaders_DATA=$(dynmodheaders)
publicheadersdir=$(NEMIVER_INCLUDE_DIR)/dynmods
libgdbmod_la_LDFLAGS=-module -avoid-version -Wl,--as-needed
-libgdbmod_la_LIBADD=libdbgcommon.la libgdbmiparser.la libgdbengine.la \
- NEMIVERCOMMON_LIBS@ \
+libgdbmod_la_LIBADD=libdbgcommon.la libgdbmiparser.la \
+libgdbengine.la libdebuggerutils.la @NEMIVERCOMMON_LIBS@ \
$(abs_top_builddir)/src/langs/libnemivercparser.la \
$(abs_top_builddir)/src/common/libnemivercommon.la
diff --git a/src/dbgengine/nmv-dbg-common.h b/src/dbgengine/nmv-dbg-common.h
index 3885e3d..7f48b25 100644
--- a/src/dbgengine/nmv-dbg-common.h
+++ b/src/dbgengine/nmv-dbg-common.h
@@ -434,6 +434,10 @@ public:
UString m_path_expression;
bool m_has_path_expression;
+ // The variable format of a variable object
+ IDebugger::Variable::Format m_variable_format;
+ bool m_has_variable_format;
+
public:
ResultRecord () {clear ();}
@@ -476,6 +480,8 @@ public:
m_has_changed_var_list = false;
m_path_expression.clear ();
m_has_path_expression = false;
+ m_variable_format = IDebugger::Variable::UNDEFINED_FORMAT;
+ m_has_variable_format = false;
}
/// \name accessors
@@ -751,6 +757,25 @@ public:
m_has_path_expression = a;
}
+ IDebugger::Variable::Format variable_format () const
+ {
+ return m_variable_format;
+ }
+ void variable_format (IDebugger::Variable::Format a_format)
+ {
+ m_variable_format = a_format;
+ has_variable_format (true);
+ }
+
+ bool has_variable_format () const
+ {
+ return m_has_variable_format;
+ }
+ void has_variable_format (bool a_flag)
+ {
+ m_has_variable_format = a_flag;
+ }
+
/// @}
};//end class ResultRecord
diff --git a/src/dbgengine/nmv-debugger-utils.cc b/src/dbgengine/nmv-debugger-utils.cc
index d036060..8b2bc7a 100644
--- a/src/dbgengine/nmv-debugger-utils.cc
+++ b/src/dbgengine/nmv-debugger-utils.cc
@@ -149,5 +149,62 @@ load_debugger_iface_with_gconf ()
return debugger;
}
+/// Read a string and convert it into the IDebugger::Variable::Format
+/// enum.
+/// \param a_str the string to consider
+/// \return resulting format enum
+IDebugger::Variable::Format
+string_to_variable_format (const std::string &a_str)
+{
+ IDebugger::Variable::Format result =
+ IDebugger::Variable::UNKNOWN_FORMAT;
+
+ if (a_str == "binary") {
+ result = IDebugger::Variable::BINARY_FORMAT;
+ } else if (a_str == "decimal") {
+ result = IDebugger::Variable::DECIMAL_FORMAT;
+ } else if (a_str == "hexadecimal") {
+ result = IDebugger::Variable::HEXADECIMAL_FORMAT;
+ } else if (a_str == "octal") {
+ result = IDebugger::Variable::OCTAL_FORMAT;
+ } else if (a_str == "natural") {
+ result = IDebugger::Variable::NATURAL_FORMAT;
+ }
+ return result;
+}
+
+/// Serialize an IDebugger::Variable::Format enum into a string.
+/// \param a_format the instance of format to serialize.
+/// \return the resulting serialization.
+std::string
+variable_format_to_string (IDebugger::Variable::Format a_format)
+{
+ std::string result;
+ switch (a_format) {
+ case IDebugger::Variable::UNDEFINED_FORMAT:
+ result = "undefined";
+ break;
+ case IDebugger::Variable::BINARY_FORMAT:
+ result = "binary";
+ break;
+ case IDebugger::Variable::DECIMAL_FORMAT:
+ result = "decimal";
+ break;
+ case IDebugger::Variable::HEXADECIMAL_FORMAT:
+ result = "hexadecimal";
+ break;
+ case IDebugger::Variable::OCTAL_FORMAT:
+ result = "octal";
+ break;
+ case IDebugger::Variable::NATURAL_FORMAT:
+ result = "natural";
+ break;
+ case IDebugger::Variable::UNKNOWN_FORMAT:
+ result = "unknown";
+ break;
+ }
+ return result;
+}
+
NEMIVER_END_NAMESPACE (debugger_utils)
NEMIVER_END_NAMESPACE (nemiver)
diff --git a/src/dbgengine/nmv-debugger-utils.h b/src/dbgengine/nmv-debugger-utils.h
index 2ab7814..67d8a51 100644
--- a/src/dbgengine/nmv-debugger-utils.h
+++ b/src/dbgengine/nmv-debugger-utils.h
@@ -53,6 +53,10 @@ void dump_variable_value (IDebugger::VariableSafePtr a_var,
IDebuggerSafePtr load_debugger_iface_with_gconf ();
+IDebugger::Variable::Format string_to_variable_format (const std::string &);
+
+std::string variable_format_to_string (IDebugger::Variable::Format);
+
NEMIVER_END_NAMESPACE (debugger_utils)
NEMIVER_END_NAMESPACE (nemiver)
diff --git a/src/dbgengine/nmv-gdb-engine.cc b/src/dbgengine/nmv-gdb-engine.cc
index 09dfdd3..7418c22 100644
--- a/src/dbgengine/nmv-gdb-engine.cc
+++ b/src/dbgengine/nmv-gdb-engine.cc
@@ -2703,6 +2703,45 @@ struct OnListChangedVariableHandler : public OutputHandler
}
};//end OnListChangedVariableHandler
+struct OnVariableFormatHandler : public OutputHandler
+{
+ GDBEngine *m_engine;
+
+ OnVariableFormatHandler (GDBEngine *a_engine) :
+ m_engine (a_engine)
+ {
+ }
+
+ bool can_handle (CommandAndOutput &a_in)
+ {
+ if (a_in.command ().name () == "query-variable-format"
+ && a_in.output ().result_record ().kind ()
+ == Output::ResultRecord::DONE) {
+ return true;
+ }
+ return false;
+ }
+
+ void do_handle (CommandAndOutput &a_in)
+ {
+ if (a_in.command ().name () == "query-variable-format"
+ && a_in.output ().result_record ().has_variable_format ()) {
+ // Set the result we got from gdb into the variable handed to us
+ // by the the client code.
+ a_in.command ().variable ()->format
+ (a_in.output ().result_record ().variable_format ());
+
+ // Call the slot associated to
+ // IDebugger::query_variable_format.
+ if (a_in.command ().has_slot ()) {
+ typedef IDebugger::ConstVariableSlot SlotType;
+ SlotType slot = a_in.command ().get_slot<SlotType> ();
+ slot (a_in.command ().variable ());
+ }
+ }
+ }
+};//end OnVariableFormatHandler
+
//****************************
//</GDBengine output handlers
//***************************
@@ -3071,6 +3110,8 @@ GDBEngine::init_output_handlers ()
(OutputHandlerSafePtr (new OnUnfoldVariableHandler (this)));
m_priv->output_handler_list.add
(OutputHandlerSafePtr (new OnListChangedVariableHandler (this)));
+ m_priv->output_handler_list.add
+ (OutputHandlerSafePtr (new OnVariableFormatHandler (this)));
}
sigc::signal<void, Output&>&
@@ -5186,6 +5227,57 @@ GDBEngine::query_variable_path_expr (const VariableSafePtr a_var,
queue_command (command);
}
+/// Ask GDB what the value display format of a variable is.
+/// \param a_var the variable to consider
+/// \param a_slot the slot to invoke upon receiving the reply from
+/// GDB.
+/// \param a_cookie the cookie of this request
+void
+GDBEngine::query_variable_format (const VariableSafePtr a_var,
+ const ConstVariableSlot &a_slot,
+ const UString &a_cookie)
+{
+ LOG_FUNCTION_SCOPE_NORMAL_DD;
+
+ THROW_IF_FAIL (a_var);
+ THROW_IF_FAIL (!a_var->internal_name ().empty ());
+
+ UString cmd_str = "-var-show-format ";
+ cmd_str += a_var->internal_name ();
+
+ Command command ("query-variable-format",
+ cmd_str, a_cookie);
+ command.variable (a_var);
+ command.set_slot (a_slot);
+ queue_command (command);
+}
+
+/// Set the value display format of variable a_var
+/// \param a_var the variable to consider
+/// \param a_format the format to set the display format of the
+/// variable to.
+/// \param a_cookie the cookie of this request.
+void
+GDBEngine::set_variable_format (const VariableSafePtr a_var,
+ const Variable::Format a_format,
+ const UString &a_cookie)
+{
+ LOG_FUNCTION_SCOPE_NORMAL_DD;
+
+ THROW_IF_FAIL (a_var);
+ THROW_IF_FAIL (!a_var->internal_name ().empty ());
+ THROW_IF_FAIL (a_format > IDebugger::Variable::UNDEFINED_FORMAT
+ && a_format < IDebugger::Variable::UNKNOWN_FORMAT);
+
+ UString cmd_str = "-var-set-format ";
+ cmd_str +=
+ a_var->internal_name () + " " +
+ debugger_utils::variable_format_to_string (a_format);
+ Command command ("set-variable-format",
+ cmd_str, a_cookie);
+ queue_command (command);
+}
+
//****************************
//</GDBEngine methods>
//****************************
diff --git a/src/dbgengine/nmv-gdb-engine.h b/src/dbgengine/nmv-gdb-engine.h
index 7f95fe6..e37935e 100644
--- a/src/dbgengine/nmv-gdb-engine.h
+++ b/src/dbgengine/nmv-gdb-engine.h
@@ -558,6 +558,14 @@ public:
void query_variable_path_expr (const VariableSafePtr,
const ConstVariableSlot &a_slot,
const UString &a_cookie);
+
+ void query_variable_format (const VariableSafePtr a_var,
+ const ConstVariableSlot &a_slot,
+ const UString &a_cookie);
+
+ void set_variable_format (const VariableSafePtr a_var,
+ const Variable::Format a_format,
+ const UString &a_cookie);
};//end class GDBEngine
NEMIVER_END_NAMESPACE (nemiver)
diff --git a/src/dbgengine/nmv-gdbmi-parser.cc b/src/dbgengine/nmv-gdbmi-parser.cc
index b76d970..145e8c0 100644
--- a/src/dbgengine/nmv-gdbmi-parser.cc
+++ b/src/dbgengine/nmv-gdbmi-parser.cc
@@ -26,7 +26,9 @@
#include <cstring>
#include <sstream>
#include "common/nmv-str-utils.h"
+#include "common/nmv-asm-utils.h"
#include "nmv-gdbmi-parser.h"
+#include "nmv-debugger-utils.h"
using nemiver::common::UString;
@@ -194,6 +196,7 @@ const char* CHANGELIST = "changelist";
const char* PREFIX_PATH_EXPR = "path_expr=";
const char* PATH_EXPR = "path_expr";
static const char* PREFIX_ASM_INSTRUCTIONS= "asm_insns=";
+const char* PREFIX_VARIABLE_FORMAT = "format=";
static bool
is_string_start (gunichar a_c)
@@ -2013,6 +2016,22 @@ fetch_gdbmi_result:
} else {
LOG_PARSING_ERROR2 (cur);
}
+ } else if (!RAW_INPUT.compare (cur,
+ strlen (PREFIX_VARIABLE_FORMAT),
+ PREFIX_VARIABLE_FORMAT)) {
+ IDebugger::Variable::Format format =
+ IDebugger::Variable::UNDEFINED_FORMAT;
+ UString value;
+ if (parse_variable_format (cur, cur, format, value)) {
+ result_record.variable_format (format);
+ if (!value.empty ()) {
+ IDebugger::VariableSafePtr var (new IDebugger::Variable);
+ var->value (value);
+ result_record.variable_value (var);
+ }
+ } else {
+ LOG_PARSING_ERROR2 (cur);
+ }
} else {
GDBMIResultSafePtr result;
if (!parse_gdbmi_result (cur, cur, result)
@@ -3633,6 +3652,63 @@ GDBMIParser::parse_var_path_expression (UString::size_type a_from,
}
bool
+GDBMIParser::parse_variable_format (UString::size_type a_from,
+ UString::size_type &a_to,
+ IDebugger::Variable::Format &a_format,
+ UString &a_value)
+{
+ LOG_FUNCTION_SCOPE_NORMAL_D (GDBMI_PARSING_DOMAIN);
+ UString::size_type cur = a_from;
+ CHECK_END2 (cur);
+
+ if (RAW_INPUT.compare (cur, strlen (PREFIX_VARIABLE_FORMAT),
+ PREFIX_VARIABLE_FORMAT)) {
+ LOG_PARSING_ERROR2 (cur);
+ return false;
+ }
+
+ UString name, value;
+ if (!parse_gdbmi_string_result (cur, cur, name, value)) {
+ LOG_PARSING_ERROR2 (cur);
+ return false;
+ }
+ const char *FORMAT = "format";
+ if (name != FORMAT) {
+ LOG_ERROR ("expected gdbmi variable " << FORMAT << ", got: "
+ << name << "\'");
+ return false;
+ }
+
+ a_format = debugger_utils::string_to_variable_format (value);
+ if (a_format == IDebugger::Variable::UNKNOWN_FORMAT) {
+ LOG_ERROR ("got unknown variable format: '" << a_format << "'");
+ return false;
+ }
+
+ SKIP_WS2 (cur);
+ if (RAW_CHAR_AT (cur) == ',') {
+ ++cur;
+ SKIP_WS2 (cur);
+ name.clear (), value.clear ();
+ if (!parse_gdbmi_string_result (cur, cur, name, value)) {
+ LOG_PARSING_ERROR2 (cur);
+ return false;
+ }
+ const char *VALUE = "value";
+ if (name == VALUE) {
+ if (value.empty ()) {
+ LOG_ERROR ("the 'value' property should have a non-empty value");
+ return true;
+ }
+ a_value = value;
+ }
+ }
+
+ a_to = cur;
+ return true;
+}
+
+bool
GDBMIParser::parse_register_names (UString::size_type a_from,
UString::size_type &a_to,
std::map<IDebugger::register_id_t,
diff --git a/src/dbgengine/nmv-gdbmi-parser.h b/src/dbgengine/nmv-gdbmi-parser.h
index 01d3c80..3b2d0ea 100644
--- a/src/dbgengine/nmv-gdbmi-parser.h
+++ b/src/dbgengine/nmv-gdbmi-parser.h
@@ -639,6 +639,11 @@ public:
UString::size_type &a_to,
UString &a_expression);
+ bool parse_variable_format (UString::size_type a_from,
+ UString::size_type &a_to,
+ IDebugger::Variable::Format &a_format,
+ UString &a_value);
+
bool parse_result_record (UString::size_type a_from,
UString::size_type &a_to,
Output::ResultRecord &a_record);
diff --git a/src/dbgengine/nmv-i-debugger.h b/src/dbgengine/nmv-i-debugger.h
index 978f5e8..6ff960d 100644
--- a/src/dbgengine/nmv-i-debugger.h
+++ b/src/dbgengine/nmv-i-debugger.h
@@ -344,6 +344,17 @@ public:
FrameArgsSlot;
class Variable : public Object {
+ public:
+ enum Format {
+ UNDEFINED_FORMAT = 0,
+ BINARY_FORMAT,
+ DECIMAL_FORMAT,
+ HEXADECIMAL_FORMAT,
+ OCTAL_FORMAT,
+ NATURAL_FORMAT,
+ UNKNOWN_FORMAT // must be last
+ };
+ private:
// non copyable.
Variable (const Variable &);
Variable& operator= (const Variable &);
@@ -371,6 +382,7 @@ public:
// If empty, it can be set by calling
// IDebugger::query_variable_path_expr()
UString m_path_expression;
+ Format m_format;
public:
Variable (const UString &a_internal_name,
@@ -382,7 +394,8 @@ public:
m_value (a_value),
m_type (a_type),
m_parent (0),
- m_num_expected_children (0)
+ m_num_expected_children (0),
+ m_format (UNDEFINED_FORMAT)
{
}
@@ -751,6 +764,10 @@ public:
{
m_path_expression = a_expr;
}
+
+ Format format () const {return m_format;}
+ void format (Format a_format) {m_format = a_format;}
+
};//end class Variable
enum State {
@@ -1324,10 +1341,18 @@ public:
virtual void query_variable_path_expr (const VariableSafePtr a_var,
const UString &a_cookie = "") = 0;
+
virtual void query_variable_path_expr (const VariableSafePtr a_var,
const ConstVariableSlot &a_slot,
const UString &a_cookie = "") = 0;
+ virtual void query_variable_format (const VariableSafePtr a_var,
+ const ConstVariableSlot &a_slot,
+ const UString &a_cookie = "") = 0;
+
+ virtual void set_variable_format (const VariableSafePtr a_var,
+ const Variable::Format a_format,
+ const UString &a_cookie = "") = 0;
};//end IDebugger
NEMIVER_END_NAMESPACE (nemiver)
diff --git a/tests/Makefile.am b/tests/Makefile.am
index 03d6ab0..53bf4d2 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -15,7 +15,8 @@ runtestwatchpoint runtestderef \
runtestlocalvarslist runtestcpplexer \
runtestcppparser runtestvarpathexpr \
runtestlibtoolwrapperdetection \
-runtestenv runtesttypes runtestdisassemble
+runtestenv runtesttypes runtestdisassemble \
+runtestvariableformat
else
@@ -34,7 +35,8 @@ runtestgdbmi_SOURCES=$(h)/test-gdbmi.cc
runtestgdbmi_LDADD= @NEMIVERCOMMON_LIBS@ \
@BOOST_UNIT_TEST_FRAMEWORK_STATIC_LIB@ \
$(top_builddir)/src/common/libnemivercommon.la \
-$(top_builddir)/src/dbgengine/libgdbmiparser.la
+$(top_builddir)/src/dbgengine/libgdbmiparser.la \
+$(top_builddir)/src/dbgengine/libdebuggerutils.la
gtkmmtest_SOURCES=$(h)/gtkmm-test.cc
gtkmmtest_CXXFLAGS= @NEMIVERUICOMMON_CFLAGS@
diff --git a/tests/fooprog.cc b/tests/fooprog.cc
index 430af63..61bdb96 100644
--- a/tests/fooprog.cc
+++ b/tests/fooprog.cc
@@ -2,10 +2,17 @@
#include <iostream>
void
+func1_1 (int i_i)
+{
+ ++i_i;
+}
+
+void
func1 ()
{
- int i = 0;
+ int i = 17;
++i;
+ func1_1 (i);
}
void
diff --git a/tests/test-variable-format.cc b/tests/test-variable-format.cc
index 1268d64..c74590f 100644
--- a/tests/test-variable-format.cc
+++ b/tests/test-variable-format.cc
@@ -114,7 +114,7 @@ test_main (int, char **)
//load the IDebugger interface
IDebuggerSafePtr debugger =
debugger_utils::load_debugger_iface_with_gconf ();
-
+
//setup the debugger with the glib mainloop
debugger->set_event_loop_context (Glib::MainContext::get_default ());
@@ -140,7 +140,6 @@ test_main (int, char **)
//****************************************
s_loop->run ();
-
NEMIVER_CATCH_AND_RETURN_NOX (-1);
BOOST_REQUIRE (s_got_format);
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