vbalu updated this revision to Diff 97569.
vbalu added a comment.
Herald added a subscriber: srhines.
Added the test case.
Repository:
rL LLVM
https://reviews.llvm.org/D32732
Files:
packages/Python/lldbsuite/test/functionalities/target_command/TestTargetCommand.py
packages/Python/lldbsuite/test/functionalities/target_command/globals.c
source/Commands/CommandObjectTarget.cpp
source/Plugins/ExpressionParser/Clang/ClangExpressionDeclMap.cpp
source/Plugins/ExpressionParser/Clang/ClangExpressionDeclMap.h
Index: source/Plugins/ExpressionParser/Clang/ClangExpressionDeclMap.h
===================================================================
--- source/Plugins/ExpressionParser/Clang/ClangExpressionDeclMap.h
+++ source/Plugins/ExpressionParser/Clang/ClangExpressionDeclMap.h
@@ -303,6 +303,23 @@
TargetInfo GetTargetInfo();
//------------------------------------------------------------------
+ /// Used to parse all the variable declared in globa score before accssing
+ /// indivually when user try to see the global symbol before starting
+ /// execution.
+ ///
+ /// @param[in] target
+ /// The target to find the symbol in.
+ ///
+ /// @param[in] name
+ /// Symbol name that user try to print.
+ ///
+ /// @return
+ /// True on success; false otherwise.
+ //------------------------------------------------------------------
+
+ void ParseGlobalVariablesInScopeZero(Target &target, const ConstString name);
+
+ //------------------------------------------------------------------
/// [Used by ClangASTSource] Find all entities matching a given name,
/// using a NameSearchContext to make Decls for them.
///
Index: source/Plugins/ExpressionParser/Clang/ClangExpressionDeclMap.cpp
===================================================================
--- source/Plugins/ExpressionParser/Clang/ClangExpressionDeclMap.cpp
+++ source/Plugins/ExpressionParser/Clang/ClangExpressionDeclMap.cpp
@@ -733,6 +733,28 @@
frame_decl_context.GetTypeSystem());
}
+void ClangExpressionDeclMap::ParseGlobalVariablesInScopeZero(
+ Target &target, const ConstString name) {
+ const Symbol *symbol = FindGlobalDataSymbol(target, name, NULL);
+ ModuleSP module;
+
+ if (!symbol)
+ return;
+
+ if (symbol->ValueIsAddress())
+ module = symbol->GetAddressRef().GetModule();
+
+ SymbolVendor *vendor_sym = module->GetSymbolVendor(true, NULL);
+ SymbolContext sc;
+
+ sc.module_sp = module;
+ sc.comp_unit = symbol->GetAddress().CalculateSymbolContextCompileUnit();
+
+ vendor_sym->ParseVariablesForContext(sc);
+
+ return;
+}
+
// Interface for ClangASTSource
void ClangExpressionDeclMap::FindExternalVisibleDecls(
@@ -1229,6 +1251,11 @@
}
}
if (target) {
+ // Looks like trying to find a variable before program is run.
+ // So parse the global variable for declaration.
+
+ ParseGlobalVariablesInScopeZero(*target, name);
+
var = FindGlobalVariable(*target, module_sp, name, &namespace_decl, NULL);
if (var) {
Index: source/Commands/CommandObjectTarget.cpp
===================================================================
--- source/Commands/CommandObjectTarget.cpp
+++ source/Commands/CommandObjectTarget.cpp
@@ -836,9 +836,25 @@
return false;
}
use_var_name = true;
+ if (!m_exe_ctx.GetFramePtr()) {
+ VariableList list;
+ lldb_private::RegularExpression all_globals_regex(".");
+ target->GetImages().FindGlobalVariables(all_globals_regex, true,
+ UINT32_MAX, list);
+ }
matches = target->GetImages().FindGlobalVariables(
regex, true, UINT32_MAX, variable_list);
} else {
+ // if there is no frame then it is before "r" ing the exe, so just
+ // parse all the variables
+ // before picking proper otherwise we end up adding only this variable
+ // in m_variables
+ if (!m_exe_ctx.GetFramePtr()) {
+ VariableList list;
+ lldb_private::RegularExpression all_globals_regex(".");
+ target->GetImages().FindGlobalVariables(all_globals_regex, true,
+ UINT32_MAX, list);
+ }
Error error(Variable::GetValuesForVariableExpressionPath(
arg, m_exe_ctx.GetBestExecutionContextScope(),
GetVariableCallback, target, variable_list, valobj_list));
Index: packages/Python/lldbsuite/test/functionalities/target_command/globals.c
===================================================================
--- packages/Python/lldbsuite/test/functionalities/target_command/globals.c
+++ packages/Python/lldbsuite/test/functionalities/target_command/globals.c
@@ -12,6 +12,7 @@
const char* my_global_str = "abc";
const char **my_global_str_ptr = &my_global_str;
static int my_static_int = 228;
+int my_global_int = 10;
int main (int argc, char const *argv[])
{
Index: packages/Python/lldbsuite/test/functionalities/target_command/TestTargetCommand.py
===================================================================
--- packages/Python/lldbsuite/test/functionalities/target_command/TestTargetCommand.py
+++ packages/Python/lldbsuite/test/functionalities/target_command/TestTargetCommand.py
@@ -59,6 +59,24 @@
self.do_target_variable_command_no_fail('globals')
+ @expectedFailureAndroid(archs=['aarch64'])
+ def test_target_variable_after_print_command(self):
+ """Test 'print' command before and 'target var' after starting the inferior."""
+ d = {'C_SOURCES': 'globals.c', 'EXE': 'globals'}
+ self.build(dictionary=d)
+ self.addTearDownCleanup(dictionary=d)
+
+ self.do_target_variable_after_print_command('globals')
+
+ @expectedFailureAndroid(archs=['aarch64'])
+ def test_target_variable_with_regex(self):
+ """Test 'target var -r' command before and 'target var' after starting the inferior."""
+ d = {'C_SOURCES': 'globals.c', 'EXE': 'globals'}
+ self.build(dictionary=d)
+ self.addTearDownCleanup(dictionary=d)
+
+ self.do_target_variable_with_regex('globals')
+
def do_target_command(self):
"""Exercise 'target create', 'target list', 'target select' commands."""
exe_a = os.path.join(os.getcwd(), "a.out")
@@ -245,7 +263,8 @@
substrs=['my_global_char',
'my_global_str',
'my_global_str_ptr',
- 'my_static_int'])
+ 'my_static_int',
+ 'my_global_int'])
self.expect(
"target variable my_global_str",
@@ -273,3 +292,49 @@
substrs=[
"my_global_char",
"'X'"])
+
+ def do_target_variable_after_print_command(self, exe_name):
+ """Exercise 'print' command before and 'target var' after starting the inferior."""
+ self.runCmd("file " + exe_name, CURRENT_EXECUTABLE_SET)
+
+ self.expect(
+ "target variable my_global_char",
+ VARIABLES_DISPLAYED_CORRECTLY,
+ substrs=[
+ "my_global_char",
+ "'X'"])
+
+ self.runCmd("b main")
+ self.runCmd("run")
+
+ # To test whether all varaible are shown if we print only one variable before
+ # starting inferior
+ self.expect("target variable",
+ substrs=['my_global_char',
+ 'my_global_str',
+ 'my_global_str_ptr',
+ 'my_static_int',
+ 'my_global_int'])
+
+ def do_target_variable_with_regex(self, exe_name):
+ """Exercise 'target var -r' command before and 'target var' after starting the inferior."""
+ self.runCmd("file " + exe_name, CURRENT_EXECUTABLE_SET)
+
+ self.expect(
+ "target variable -r my_global_ch*",
+ VARIABLES_DISPLAYED_CORRECTLY,
+ substrs=[
+ "my_global_char",
+ "'X'"])
+
+ self.runCmd("b main")
+ self.runCmd("run")
+
+ # To test whether all varaible are shown if we use regex for one variable before
+ # starting inferior
+ self.expect("target variable",
+ substrs=['my_global_char',
+ 'my_global_str',
+ 'my_global_str_ptr',
+ 'my_static_int',
+ 'my_global_int'])
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