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[lldb] Use llvm::format in AppleObjCRuntimeV2.cpp 

Crushing a "sprintf" buffer is null warning.
This commit is contained in:
Pavel Labath 2019-11-26 15:00:15 +01:00
parent 64225aea8f
commit 290e43ddb6
1 changed files with 2 additions and 8 deletions
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10
lldb/source/Plugins/LanguageRuntime/ObjC/AppleObjCRuntime/AppleObjCRuntimeV2.cpp
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@ -1625,19 +1625,13 @@ AppleObjCRuntimeV2::UpdateISAToDescriptorMapSharedCache() {
// Substitute in the correct class_getName / class_getNameRaw function name,
// concatenate the two parts of our expression text. The format string
// has two %s's, so provide the name twice.
int prefix_string_size = snprintf (nullptr, 0,
std::string shared_class_expression;
llvm::raw_string_ostream(shared_class_expression) << llvm::format(
g_shared_cache_class_name_funcptr,
class_name_getter_function_name.AsCString(),
class_name_getter_function_name.AsCString());
char *class_name_func_ptr_expr = (char*) malloc (prefix_string_size + 1);
snprintf (class_name_func_ptr_expr, prefix_string_size + 1,
g_shared_cache_class_name_funcptr,
class_name_getter_function_name.AsCString(),
class_name_getter_function_name.AsCString());
std::string shared_class_expression = class_name_func_ptr_expr;
shared_class_expression += g_get_shared_cache_class_info_body;
free (class_name_func_ptr_expr);
m_get_shared_cache_class_info_code.reset(
GetTargetRef().GetUtilityFunctionForLanguage(