Author: slthakur
Date: Fri May 13 06:04:47 2016
New Revision: 269407
URL: http://llvm.org/viewvc/llvm-project?rev=269407&view=rev
Log:
[LLDB][MIPS] Provide ABI string to compiler for appropriate code generation for
MIPS
Patch by Nitesh Jain.
Summary: These patch will set clang::TargetOptions::ABI and accordingly code
will be generated for MIPS target.
Reviewers: ovyalov, clayborg
Subscribers: lldb-commits, mohit.bhakkad, sagar, jaydeep, bhushan
Differential: D18638
Modified:
lldb/trunk/source/Plugins/ExpressionParser/Clang/ClangExpressionParser.cpp
lldb/trunk/source/Plugins/ExpressionParser/Clang/ClangExpressionParser.h
Modified:
lldb/trunk/source/Plugins/ExpressionParser/Clang/ClangExpressionParser.cpp
URL:
http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Plugins/ExpressionParser/Clang/ClangExpressionParser.cpp?rev=269407&r1=269406&r2=269407&view=diff
==============================================================================
--- lldb/trunk/source/Plugins/ExpressionParser/Clang/ClangExpressionParser.cpp
(original)
+++ lldb/trunk/source/Plugins/ExpressionParser/Clang/ClangExpressionParser.cpp
Fri May 13 06:04:47 2016
@@ -286,7 +286,8 @@ ClangExpressionParser::ClangExpressionPa
lldb::LanguageType frame_lang = expr.Language(); // defaults to
lldb::eLanguageTypeUnknown
bool overridden_target_opts = false;
lldb_private::LanguageRuntime *lang_rt = nullptr;
-
+
+ std::string abi;
ArchSpec target_arch;
target_arch = target_sp->GetArchitecture();
@@ -350,6 +351,11 @@ ClangExpressionParser::ClangExpressionPa
// This will be empty for any CPU that doesn't really need to make a
special CPU string.
m_compiler->getTargetOpts().CPU = target_arch.GetClangTargetCPU();
+ // Set the target ABI
+ abi = GetClangTargetABI(target_arch);
+ if (!abi.empty())
+ m_compiler->getTargetOpts().ABI = abi;
+
// 3. Now allow the runtime to provide custom configuration options for
the target.
// In this case, a specialized language runtime is available and we can
query it for extra options.
// For 99% of use cases, this will not be needed and should be provided
when basic platform detection is not enough.
@@ -658,6 +664,29 @@ ClangExpressionParser::Parse(DiagnosticM
return num_errors;
}
+std::string
+ClangExpressionParser::GetClangTargetABI (const ArchSpec &target_arch)
+{
+ std::string abi;
+ const llvm::Triple::ArchType machine = target_arch.GetMachine();
+
+ if(target_arch.IsMIPS())
+ {
+ switch (target_arch.GetFlags () & ArchSpec::eMIPSABI_mask)
+ {
+ case ArchSpec::eMIPSABI_N64:
+ abi = "n64"; break;
+ case ArchSpec::eMIPSABI_N32:
+ abi = "n32"; break;
+ case ArchSpec::eMIPSABI_O32:
+ abi = "o32"; break;
+ default:
+ break;
+ }
+ }
+ return abi;
+}
+
bool
ClangExpressionParser::RewriteExpression(DiagnosticManager &diagnostic_manager)
{
Modified:
lldb/trunk/source/Plugins/ExpressionParser/Clang/ClangExpressionParser.h
URL:
http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Plugins/ExpressionParser/Clang/ClangExpressionParser.h?rev=269407&r1=269406&r2=269407&view=diff
==============================================================================
--- lldb/trunk/source/Plugins/ExpressionParser/Clang/ClangExpressionParser.h
(original)
+++ lldb/trunk/source/Plugins/ExpressionParser/Clang/ClangExpressionParser.h
Fri May 13 06:04:47 2016
@@ -137,7 +137,19 @@ public:
Error
RunStaticInitializers (lldb::IRExecutionUnitSP &execution_unit_sp,
ExecutionContext &exe_ctx);
-
+
+ //------------------------------------------------------------------
+ /// Returns a string representing current ABI.
+ ///
+ /// @param[in] target_arch
+ /// The target architecture.
+ ///
+ /// @return
+ /// A string representing target ABI for the current architecture.
+ //-------------------------------------------------------------------
+ std::string
+ GetClangTargetABI (const ArchSpec &target_arch);
+
private:
std::unique_ptr<llvm::LLVMContext> m_llvm_context; ///< The
LLVM context to generate IR into
std::unique_ptr<clang::FileManager> m_file_manager; ///< The
Clang file manager object used by the compiler
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