[llvm] 134e181 - [lldb] change name demangling to be consistent between windows and linx
Andy Yankovsky via llvm-commits
llvm-commits at lists.llvm.org
Tue Oct 19 03:05:00 PDT 2021
Author: Lasse Folger
Date: 2021-10-19T12:04:37+02:00
New Revision: 134e1817f62c08cde1ed1f7e94e51425536085ac
URL: https://github.com/llvm/llvm-project/commit/134e1817f62c08cde1ed1f7e94e51425536085ac
DIFF: https://github.com/llvm/llvm-project/commit/134e1817f62c08cde1ed1f7e94e51425536085ac.diff
LOG: [lldb] change name demangling to be consistent between windows and linx
When printing names in lldb on windows these names contain the full type information while on linux only the name is contained.
This change introduces a flag in the Microsoft demangler to control if the type information should be included.
With the flag enabled demangled name contains only the qualified name, e.g:
without flag -> with flag
int (*array2d)[10] -> array2d
int (*abc::array2d)[10] -> abc::array2d
const int *x -> x
For globals there is a second inconsistency which is not yet addressed by this change. On linux globals (in global namespace) are prefixed with :: while on windows they are not.
Reviewed By: teemperor, rnk
Differential Revision: https://reviews.llvm.org/D111715
Added:
Modified:
lldb/source/Core/Mangled.cpp
llvm/include/llvm/Demangle/Demangle.h
llvm/include/llvm/Demangle/MicrosoftDemangleNodes.h
llvm/lib/Demangle/MicrosoftDemangle.cpp
llvm/lib/Demangle/MicrosoftDemangleNodes.cpp
llvm/test/Demangle/ms-options.test
llvm/tools/llvm-undname/llvm-undname.cpp
Removed:
################################################################################
diff --git a/lldb/source/Core/Mangled.cpp b/lldb/source/Core/Mangled.cpp
index 35b1082c3025d..e36d412896a93 100644
--- a/lldb/source/Core/Mangled.cpp
+++ b/lldb/source/Core/Mangled.cpp
@@ -131,9 +131,9 @@ void Mangled::SetValue(ConstString name) {
static char *GetMSVCDemangledStr(const char *M) {
char *demangled_cstr = llvm::microsoftDemangle(
M, nullptr, nullptr, nullptr, nullptr,
- llvm::MSDemangleFlags(llvm::MSDF_NoAccessSpecifier |
- llvm::MSDF_NoCallingConvention |
- llvm::MSDF_NoMemberType));
+ llvm::MSDemangleFlags(
+ llvm::MSDF_NoAccessSpecifier | llvm::MSDF_NoCallingConvention |
+ llvm::MSDF_NoMemberType | llvm::MSDF_NoVariableType));
if (Log *log = lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_DEMANGLE)) {
if (demangled_cstr && demangled_cstr[0])
diff --git a/llvm/include/llvm/Demangle/Demangle.h b/llvm/include/llvm/Demangle/Demangle.h
index 8d61fa1c17f2f..521795f7a1f81 100644
--- a/llvm/include/llvm/Demangle/Demangle.h
+++ b/llvm/include/llvm/Demangle/Demangle.h
@@ -38,6 +38,7 @@ enum MSDemangleFlags {
MSDF_NoCallingConvention = 1 << 2,
MSDF_NoReturnType = 1 << 3,
MSDF_NoMemberType = 1 << 4,
+ MSDF_NoVariableType = 1 << 5,
};
/// Demangles the Microsoft symbol pointed at by mangled_name and returns it.
diff --git a/llvm/include/llvm/Demangle/MicrosoftDemangleNodes.h b/llvm/include/llvm/Demangle/MicrosoftDemangleNodes.h
index 77446e9b0f079..7f3ee5a1d487f 100644
--- a/llvm/include/llvm/Demangle/MicrosoftDemangleNodes.h
+++ b/llvm/include/llvm/Demangle/MicrosoftDemangleNodes.h
@@ -80,6 +80,7 @@ enum OutputFlags {
OF_NoAccessSpecifier = 4,
OF_NoMemberType = 8,
OF_NoReturnType = 16,
+ OF_NoVariableType = 32,
};
// Types
diff --git a/llvm/lib/Demangle/MicrosoftDemangle.cpp b/llvm/lib/Demangle/MicrosoftDemangle.cpp
index 303207176be71..15d7056b29cb1 100644
--- a/llvm/lib/Demangle/MicrosoftDemangle.cpp
+++ b/llvm/lib/Demangle/MicrosoftDemangle.cpp
@@ -2361,6 +2361,8 @@ char *llvm::microsoftDemangle(const char *MangledName, size_t *NMangled,
OF = OutputFlags(OF | OF_NoReturnType);
if (Flags & MSDF_NoMemberType)
OF = OutputFlags(OF | OF_NoMemberType);
+ if (Flags & MSDF_NoVariableType)
+ OF = OutputFlags(OF | OF_NoVariableType);
int InternalStatus = demangle_success;
if (D.Error)
diff --git a/llvm/lib/Demangle/MicrosoftDemangleNodes.cpp b/llvm/lib/Demangle/MicrosoftDemangleNodes.cpp
index 9fe157bf0d2aa..56a07377c92ad 100644
--- a/llvm/lib/Demangle/MicrosoftDemangleNodes.cpp
+++ b/llvm/lib/Demangle/MicrosoftDemangleNodes.cpp
@@ -613,12 +613,12 @@ void VariableSymbolNode::output(OutputStream &OS, OutputFlags Flags) const {
if (!(Flags & OF_NoMemberType) && IsStatic)
OS << "static ";
- if (Type) {
+ if (!(Flags & OF_NoVariableType) && Type) {
Type->outputPre(OS, Flags);
outputSpaceIfNecessary(OS);
}
Name->output(OS, Flags);
- if (Type)
+ if (!(Flags & OF_NoVariableType) && Type)
Type->outputPost(OS, Flags);
}
diff --git a/llvm/test/Demangle/ms-options.test b/llvm/test/Demangle/ms-options.test
index 1699ad6f558a5..94663a5f9fc46 100644
--- a/llvm/test/Demangle/ms-options.test
+++ b/llvm/test/Demangle/ms-options.test
@@ -1,14 +1,43 @@
-; RUN: llvm-undname < %s | FileCheck %s
-; RUN: llvm-undname --no-calling-convention < %s | FileCheck %s --check-prefix=CHECK-NO-CALLING-CONV
-; RUN: llvm-undname --no-return-type < %s | FileCheck %s --check-prefix=CHECK-NO-RETURN
-; RUN: llvm-undname --no-access-specifier < %s | FileCheck %s --check-prefix=CHECK-NO-ACCESS
-; RUN: llvm-undname --no-member-type < %s | FileCheck %s --check-prefix=CHECK-NO-MEMBER-TYPE
-; RUN: llvm-undname --no-calling-convention --no-return-type --no-access-specifier --no-member-type < %s | FileCheck %s --check-prefix=CHECK-NO-ALL
-
-?func at MyClass@@UEAAHHH at Z
-; CHECK: public: virtual int __cdecl MyClass::func(int, int)
-; CHECK-NO-CALLING-CONV: public: virtual int MyClass::func(int, int)
-; CHECK-NO-RETURN: public: virtual __cdecl MyClass::func(int, int)
-; CHECK-NO-ACCESS: {{^}}virtual int __cdecl MyClass::func(int, int)
-; CHECK-NO-MEMBER-TYPE: public: int __cdecl MyClass::func(int, int)
-; CHECK-NO-ALL: {{^}}MyClass::func(int, int)
+; RUN: llvm-undname < %s | FileCheck %s
+; RUN: llvm-undname --no-calling-convention < %s | FileCheck %s --check-prefix=CHECK-NO-CALLING-CONV
+; RUN: llvm-undname --no-return-type < %s | FileCheck %s --check-prefix=CHECK-NO-RETURN
+; RUN: llvm-undname --no-access-specifier < %s | FileCheck %s --check-prefix=CHECK-NO-ACCESS
+; RUN: llvm-undname --no-member-type < %s | FileCheck %s --check-prefix=CHECK-NO-MEMBER-TYPE
+; RUN: llvm-undname --no-variable-type < %s | FileCheck %s --check-prefix=CHECK-NO-VARIABLE-TYPE
+; RUN: llvm-undname --no-calling-convention --no-return-type --no-access-specifier --no-member-type --no-variable-type < %s | FileCheck %s --check-prefix=CHECK-NO-ALL
+
+?func at MyClass@@UEAAHHH at Z
+; CHECK: public: virtual int __cdecl MyClass::func(int, int)
+; CHECK-NO-CALLING-CONV: public: virtual int MyClass::func(int, int)
+; CHECK-NO-RETURN: public: virtual __cdecl MyClass::func(int, int)
+; CHECK-NO-ACCESS: {{^}}virtual int __cdecl MyClass::func(int, int)
+; CHECK-NO-MEMBER-TYPE: public: int __cdecl MyClass::func(int, int)
+; CHECK-NO-VARIABLE-TYPE: public: virtual int __cdecl MyClass::func(int, int)
+; CHECK-NO-ALL: {{^}}MyClass::func(int, int)
+
+?array2d@@3PAY09HA
+; CHECK: int (*array2d)[10]
+; CHECK-NO-CALLING-CONV: int (*array2d)[10]
+; CHECK-NO-RETURN: int (*array2d)[10]
+; CHECK-NO-ACCESS: int (*array2d)[10]
+; CHECK-NO-MEMBER-TYPE: int (*array2d)[10]
+; CHECK-NO-VARIABLE-TYPE: array2d
+; CHECK-NO-ALL: array2d
+
+?a at abc@@3PAY09HA
+; CHECK: int (*abc::a)[10]
+; CHECK-NO-CALLING-CONV: int (*abc::a)[10]
+; CHECK-NO-RETURN: int (*abc::a)[10]
+; CHECK-NO-ACCESS: int (*abc::a)[10]
+; CHECK-NO-MEMBER-TYPE: int (*abc::a)[10]
+; CHECK-NO-VARIABLE-TYPE: abc::a
+; CHECK-NO-ALL: abc::a
+
+?x@@3PEAEEA
+; CHECK: unsigned char *x
+; CHECK-NO-CALLING-CONV: unsigned char *x
+; CHECK-NO-RETURN: unsigned char *x
+; CHECK-NO-ACCESS: unsigned char *x
+; CHECK-NO-MEMBER-TYPE: unsigned char *x
+; CHECK-NO-VARIABLE-TYPE: x
+; CHECK-NO-ALL: x
diff --git a/llvm/tools/llvm-undname/llvm-undname.cpp b/llvm/tools/llvm-undname/llvm-undname.cpp
index c6714cf667dd8..cc35cdf4533da 100644
--- a/llvm/tools/llvm-undname/llvm-undname.cpp
+++ b/llvm/tools/llvm-undname/llvm-undname.cpp
@@ -46,6 +46,9 @@ cl::opt<bool> NoReturnType("no-return-type", cl::Optional,
cl::opt<bool> NoMemberType("no-member-type", cl::Optional,
cl::desc("skip member types"), cl::Hidden,
cl::init(false), cl::cat(UndNameCategory));
+cl::opt<bool> NoVariableType("no-variable-type", cl::Optional,
+ cl::desc("skip variable types"), cl::Hidden,
+ cl::init(false), cl::cat(UndNameCategory));
cl::opt<std::string> RawFile("raw-file", cl::Optional,
cl::desc("for fuzzer data"), cl::Hidden,
cl::cat(UndNameCategory));
@@ -68,6 +71,8 @@ static bool msDemangle(const std::string &S) {
Flags = MSDemangleFlags(Flags | MSDF_NoReturnType);
if (NoMemberType)
Flags = MSDemangleFlags(Flags | MSDF_NoMemberType);
+ if (NoVariableType)
+ Flags = MSDemangleFlags(Flags | MSDF_NoVariableType);
size_t NRead;
char *ResultBuf =
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