JDevlieghere created this revision.
JDevlieghere added a reviewer: LLDB.
Herald added a subscriber: teemperor.
Herald added a project: LLDB.
This patch adds support for C++20 char8_t, as well as dlang's char/wchar/dchar
types.
Original patch by James Blachly, modified by me.
Repository:
rLLDB LLDB
https://reviews.llvm.org/D66447
Files:
lldb/include/lldb/lldb-enumerations.h
lldb/packages/Python/lldbsuite/test/lang/cpp/char8_t/Makefile
lldb/packages/Python/lldbsuite/test/lang/cpp/char8_t/TestCxxChar8_t.py
lldb/packages/Python/lldbsuite/test/lang/cpp/char8_t/main.cpp
lldb/source/Commands/CommandObjectMemory.cpp
lldb/source/Plugins/Language/CPlusPlus/CPlusPlusLanguage.cpp
lldb/source/Plugins/Language/CPlusPlus/CxxStringTypes.cpp
lldb/source/Plugins/Language/CPlusPlus/CxxStringTypes.h
lldb/source/Symbol/ClangASTContext.cpp
Index: lldb/source/Symbol/ClangASTContext.cpp
===================================================================
--- lldb/source/Symbol/ClangASTContext.cpp
+++ lldb/source/Symbol/ClangASTContext.cpp
@@ -1378,10 +1378,21 @@
case DW_ATE_UTF:
if (type_name) {
- if (streq(type_name, "char16_t")) {
+ if (streq(type_name, "char16_t") ||
+ streq(type_name, "wchar") || // dlang
+ streq(type_name, "const(wchar)") ||
+ streq(type_name, "immutable(wchar)")) {
return CompilerType(this, ast->Char16Ty.getAsOpaquePtr());
- } else if (streq(type_name, "char32_t")) {
+ } else if (streq(type_name, "char32_t") ||
+ streq(type_name, "dchar") || // dlang
+ streq(type_name, "const(dchar") ||
+ streq(type_name, "immutable(dchar)")) {
return CompilerType(this, ast->Char32Ty.getAsOpaquePtr());
+ } else if (streq(type_name, "char8_t") || // C++20
+ streq(type_name, "char") || // dlang
+ streq(type_name, "const(char)") ||
+ streq(type_name, "immutable(char)")) {
+ return CompilerType(this, ast->Char8Ty.getAsOpaquePtr());
}
}
break;
Index: lldb/source/Plugins/Language/CPlusPlus/CxxStringTypes.h
===================================================================
--- lldb/source/Plugins/Language/CPlusPlus/CxxStringTypes.h
+++ lldb/source/Plugins/Language/CPlusPlus/CxxStringTypes.h
@@ -16,6 +16,9 @@
namespace lldb_private {
namespace formatters {
+bool Char8StringSummaryProvider(ValueObject &valobj, Stream &stream,
+ const TypeSummaryOptions &options); // char8_t*
+
bool Char16StringSummaryProvider(
ValueObject &valobj, Stream &stream,
const TypeSummaryOptions &options); // char16_t* and unichar*
@@ -27,6 +30,9 @@
bool WCharStringSummaryProvider(ValueObject &valobj, Stream &stream,
const TypeSummaryOptions &options); // wchar_t*
+bool Char8SummaryProvider(ValueObject &valobj, Stream &stream,
+ const TypeSummaryOptions &options); // char8_t
+
bool Char16SummaryProvider(
ValueObject &valobj, Stream &stream,
const TypeSummaryOptions &options); // char16_t and unichar
Index: lldb/source/Plugins/Language/CPlusPlus/CxxStringTypes.cpp
===================================================================
--- lldb/source/Plugins/Language/CPlusPlus/CxxStringTypes.cpp
+++ lldb/source/Plugins/Language/CPlusPlus/CxxStringTypes.cpp
@@ -32,6 +32,31 @@
using namespace lldb_private;
using namespace lldb_private::formatters;
+bool lldb_private::formatters::Char8StringSummaryProvider(
+ ValueObject &valobj, Stream &stream, const TypeSummaryOptions &) {
+ ProcessSP process_sp = valobj.GetProcessSP();
+ if (!process_sp)
+ return false;
+
+ lldb::addr_t valobj_addr = GetArrayAddressOrPointerValue(valobj);
+ if (valobj_addr == 0 || valobj_addr == LLDB_INVALID_ADDRESS)
+ return false;
+
+ StringPrinter::ReadStringAndDumpToStreamOptions options(valobj);
+ options.SetLocation(valobj_addr);
+ options.SetProcessSP(process_sp);
+ options.SetStream(&stream);
+ options.SetPrefixToken("u8");
+
+ if (!StringPrinter::ReadStringAndDumpToStream<
+ StringPrinter::StringElementType::UTF8>(options)) {
+ stream.Printf("Summary Unavailable");
+ return true;
+ }
+
+ return true;
+}
+
bool lldb_private::formatters::Char16StringSummaryProvider(
ValueObject &valobj, Stream &stream, const TypeSummaryOptions &) {
ProcessSP process_sp = valobj.GetProcessSP();
@@ -128,6 +153,32 @@
return true;
}
+bool lldb_private::formatters::Char8SummaryProvider(
+ ValueObject &valobj, Stream &stream, const TypeSummaryOptions &) {
+ DataExtractor data;
+ Status error;
+ valobj.GetData(data, error);
+
+ if (error.Fail())
+ return false;
+
+ std::string value;
+ valobj.GetValueAsCString(lldb::eFormatUnicode8, value);
+ if (!value.empty())
+ stream.Printf("%s ", value.c_str());
+
+ StringPrinter::ReadBufferAndDumpToStreamOptions options(valobj);
+ options.SetData(data);
+ options.SetStream(&stream);
+ options.SetPrefixToken("u8");
+ options.SetQuote('\'');
+ options.SetSourceSize(1);
+ options.SetBinaryZeroIsTerminator(false);
+
+ return StringPrinter::ReadBufferAndDumpToStream<
+ StringPrinter::StringElementType::UTF8>(options);
+}
+
bool lldb_private::formatters::Char16SummaryProvider(
ValueObject &valobj, Stream &stream, const TypeSummaryOptions &) {
DataExtractor data;
Index: lldb/source/Plugins/Language/CPlusPlus/CPlusPlusLanguage.cpp
===================================================================
--- lldb/source/Plugins/Language/CPlusPlus/CPlusPlusLanguage.cpp
+++ lldb/source/Plugins/Language/CPlusPlus/CPlusPlusLanguage.cpp
@@ -853,6 +853,14 @@
// FIXME because of a bug in the FormattersContainer we need to add a summary
// for both X* and const X* (<rdar://problem/12717717>)
+ AddCXXSummary(
+ cpp_category_sp, lldb_private::formatters::Char8StringSummaryProvider,
+ "char8_t * summary provider", ConstString("char8_t *"), string_flags);
+ AddCXXSummary(cpp_category_sp,
+ lldb_private::formatters::Char8StringSummaryProvider,
+ "char8_t [] summary provider",
+ ConstString("char8_t \\[[0-9]+\\]"), string_array_flags, true);
+
AddCXXSummary(
cpp_category_sp, lldb_private::formatters::Char16StringSummaryProvider,
"char16_t * summary provider", ConstString("char16_t *"), string_flags);
@@ -890,6 +898,9 @@
.SetHideItemNames(true)
.SetShowMembersOneLiner(false);
+ AddCXXSummary(cpp_category_sp, lldb_private::formatters::Char8SummaryProvider,
+ "char8_t summary provider", ConstString("char8_t"),
+ widechar_flags);
AddCXXSummary(
cpp_category_sp, lldb_private::formatters::Char16SummaryProvider,
"char16_t summary provider", ConstString("char16_t"), widechar_flags);
Index: lldb/source/Commands/CommandObjectMemory.cpp
===================================================================
--- lldb/source/Commands/CommandObjectMemory.cpp
+++ lldb/source/Commands/CommandObjectMemory.cpp
@@ -163,6 +163,7 @@
case eFormatOctal:
case eFormatDecimal:
case eFormatEnum:
+ case eFormatUnicode8:
case eFormatUnicode16:
case eFormatUnicode32:
case eFormatUnsigned:
@@ -1411,6 +1412,7 @@
case eFormatBytesWithASCII:
case eFormatComplex:
case eFormatEnum:
+ case eFormatUnicode8:
case eFormatUnicode16:
case eFormatUnicode32:
case eFormatVectorOfChar:
Index: lldb/packages/Python/lldbsuite/test/lang/cpp/char8_t/main.cpp
===================================================================
--- /dev/null
+++ lldb/packages/Python/lldbsuite/test/lang/cpp/char8_t/main.cpp
@@ -0,0 +1,7 @@
+#include <cstring>
+
+int main (int argc, char const *argv[])
+{
+ char8_t c8 = u8'\0';
+ return 0; // Set break point at this line.
+}
Index: lldb/packages/Python/lldbsuite/test/lang/cpp/char8_t/TestCxxChar8_t.py
===================================================================
--- /dev/null
+++ lldb/packages/Python/lldbsuite/test/lang/cpp/char8_t/TestCxxChar8_t.py
@@ -0,0 +1,48 @@
+# coding=utf8
+"""
+Test that C++ supports char8_t correctly.
+"""
+
+from __future__ import print_function
+
+import lldb
+from lldbsuite.test.decorators import *
+from lldbsuite.test.lldbtest import *
+import lldbsuite.test.lldbutil as lldbutil
+
+
+class CxxChar8_tTestCase(TestBase):
+
+ mydir = TestBase.compute_mydir(__file__)
+
+ def setUp(self):
+ # Call super's setUp().
+ TestBase.setUp(self)
+ # Find the line number to break for main.cpp.
+ self.source = 'main.cpp'
+ self.line = line_number(self.source,
+ '// Set break point at this line.')
+
+ @skipIf(compiler="clang", compiler_version=['<', '5.0'])
+ def test(self):
+ """Test that C++ supports wchar_t correctly."""
+ self.build()
+ exe = self.getBuildArtifact("a.out")
+
+ # Create a target by the debugger.
+ target = self.dbg.CreateTarget(exe)
+ self.assertTrue(target, VALID_TARGET)
+
+ # Break on the struct declration statement in main.cpp.
+ lldbutil.run_break_set_by_file_and_line(self, "main.cpp", self.line)
+
+ # Now launch the process, and do not stop at entry point.
+ process = target.LaunchSimple(None, None,
+ self.get_process_working_directory())
+
+ if not process:
+ self.fail("SBTarget.Launch() failed")
+
+ # Check that we correctly report templates on wchar_t
+ self.expect(
+ "frame variable c8", substrs=["(char8_t) c8 = 0x00 u8'\\0'"])
Index: lldb/packages/Python/lldbsuite/test/lang/cpp/char8_t/Makefile
===================================================================
--- /dev/null
+++ lldb/packages/Python/lldbsuite/test/lang/cpp/char8_t/Makefile
@@ -0,0 +1,8 @@
+LEVEL = ../../../make
+
+CXX_SOURCES := main.cpp
+CFLAGS := -g -O0 -std=c++2a
+
+clean: OBJECTS+=$(wildcard main.d.*)
+
+include $(LEVEL)/Makefile.rules
Index: lldb/include/lldb/lldb-enumerations.h
===================================================================
--- lldb/include/lldb/lldb-enumerations.h
+++ lldb/include/lldb/lldb-enumerations.h
@@ -167,6 +167,7 @@
eFormatOctal,
eFormatOSType, // OS character codes encoded into an integer 'PICT' 'text'
// etc...
+ eFormatUnicode8,
eFormatUnicode16,
eFormatUnicode32,
eFormatUnsigned,
_______________________________________________
lldb-commits mailing list
lldb-commits@lists.llvm.org
https://lists.llvm.org/cgi-bin/mailman/listinfo/lldb-commits
