diff options
Diffstat (limited to 'lldb/source/Plugins/ABI/MacOSX-arm/ABIMacOSX_arm.cpp')
| -rw-r--r-- | lldb/source/Plugins/ABI/MacOSX-arm/ABIMacOSX_arm.cpp | 150 |
1 files changed, 79 insertions, 71 deletions
diff --git a/lldb/source/Plugins/ABI/MacOSX-arm/ABIMacOSX_arm.cpp b/lldb/source/Plugins/ABI/MacOSX-arm/ABIMacOSX_arm.cpp index 6035b051559..3477695425f 100644 --- a/lldb/source/Plugins/ABI/MacOSX-arm/ABIMacOSX_arm.cpp +++ b/lldb/source/Plugins/ABI/MacOSX-arm/ABIMacOSX_arm.cpp @@ -16,6 +16,7 @@ #include "lldb/Core/RegisterValue.h" #include "lldb/Core/Scalar.h" #include "lldb/Core/Value.h" +#include "lldb/Core/ValueObjectConstResult.h" #include "lldb/Symbol/ClangASTContext.h" #include "lldb/Symbol/UnwindPlan.h" #include "lldb/Target/Process.h" @@ -417,85 +418,92 @@ ABIMacOSX_arm::GetArgumentValues (Thread &thread, return true; } -bool -ABIMacOSX_arm::GetReturnValue (Thread &thread, - Value &value) const +ValueObjectSP +ABIMacOSX_arm::GetReturnValueObjectImpl (Thread &thread, + lldb_private::ClangASTType &ast_type) const { - switch (value.GetContextType()) + Value value; + ValueObjectSP return_valobj_sp; + + void *value_type = ast_type.GetOpaqueQualType(); + if (!value_type) + return return_valobj_sp; + + clang::ASTContext *ast_context = ast_type.GetASTContext(); + if (!ast_context) + return return_valobj_sp; + + value.SetContext (Value::eContextTypeClangType, value_type); + + RegisterContext *reg_ctx = thread.GetRegisterContext().get(); + if (!reg_ctx) + return return_valobj_sp; + + bool is_signed; + + // Get the pointer to the first stack argument so we have a place to start + // when reading data + + const RegisterInfo *r0_reg_info = reg_ctx->GetRegisterInfoByName("r0", 0); + if (ClangASTContext::IsIntegerType (value_type, is_signed)) { - default: - return false; - case Value::eContextTypeClangType: + size_t bit_width = ClangASTType::GetClangTypeBitWidth(ast_context, value_type); + + switch (bit_width) { - // Extract the Clang AST context from the PC so that we can figure out type - // sizes - - clang::ASTContext *ast_context = thread.CalculateTarget()->GetScratchClangASTContext()->getASTContext(); - - // Get the pointer to the first stack argument so we have a place to start - // when reading data - - RegisterContext *reg_ctx = thread.GetRegisterContext().get(); - - void *value_type = value.GetClangType(); - bool is_signed; - - const RegisterInfo *r0_reg_info = reg_ctx->GetRegisterInfoByName("r0", 0); - if (ClangASTContext::IsIntegerType (value_type, is_signed)) - { - size_t bit_width = ClangASTType::GetClangTypeBitWidth(ast_context, value_type); - - switch (bit_width) - { - default: - return false; - case 64: - { - const RegisterInfo *r1_reg_info = reg_ctx->GetRegisterInfoByName("r1", 0); - uint64_t raw_value; - raw_value = reg_ctx->ReadRegisterAsUnsigned(r0_reg_info, 0) & UINT32_MAX; - raw_value |= ((uint64_t)(reg_ctx->ReadRegisterAsUnsigned(r1_reg_info, 0) & UINT32_MAX)) << 32; - if (is_signed) - value.GetScalar() = (int64_t)raw_value; - else - value.GetScalar() = (uint64_t)raw_value; - } - break; - case 32: - if (is_signed) - value.GetScalar() = (int32_t)(reg_ctx->ReadRegisterAsUnsigned(r0_reg_info, 0) & UINT32_MAX); - else - value.GetScalar() = (uint32_t)(reg_ctx->ReadRegisterAsUnsigned(r0_reg_info, 0) & UINT32_MAX); - break; - case 16: - if (is_signed) - value.GetScalar() = (int16_t)(reg_ctx->ReadRegisterAsUnsigned(r0_reg_info, 0) & UINT16_MAX); - else - value.GetScalar() = (uint16_t)(reg_ctx->ReadRegisterAsUnsigned(r0_reg_info, 0) & UINT16_MAX); - break; - case 8: - if (is_signed) - value.GetScalar() = (int8_t)(reg_ctx->ReadRegisterAsUnsigned(r0_reg_info, 0) & UINT8_MAX); - else - value.GetScalar() = (uint8_t)(reg_ctx->ReadRegisterAsUnsigned(r0_reg_info, 0) & UINT8_MAX); - break; - } - } - else if (ClangASTContext::IsPointerType (value_type)) + default: + return return_valobj_sp; + case 64: { - uint32_t ptr = thread.GetRegisterContext()->ReadRegisterAsUnsigned(r0_reg_info, 0) & UINT32_MAX; - value.GetScalar() = ptr; - } - else - { - // not handled yet - return false; + const RegisterInfo *r1_reg_info = reg_ctx->GetRegisterInfoByName("r1", 0); + uint64_t raw_value; + raw_value = reg_ctx->ReadRegisterAsUnsigned(r0_reg_info, 0) & UINT32_MAX; + raw_value |= ((uint64_t)(reg_ctx->ReadRegisterAsUnsigned(r1_reg_info, 0) & UINT32_MAX)) << 32; + if (is_signed) + value.GetScalar() = (int64_t)raw_value; + else + value.GetScalar() = (uint64_t)raw_value; } + break; + case 32: + if (is_signed) + value.GetScalar() = (int32_t)(reg_ctx->ReadRegisterAsUnsigned(r0_reg_info, 0) & UINT32_MAX); + else + value.GetScalar() = (uint32_t)(reg_ctx->ReadRegisterAsUnsigned(r0_reg_info, 0) & UINT32_MAX); + break; + case 16: + if (is_signed) + value.GetScalar() = (int16_t)(reg_ctx->ReadRegisterAsUnsigned(r0_reg_info, 0) & UINT16_MAX); + else + value.GetScalar() = (uint16_t)(reg_ctx->ReadRegisterAsUnsigned(r0_reg_info, 0) & UINT16_MAX); + break; + case 8: + if (is_signed) + value.GetScalar() = (int8_t)(reg_ctx->ReadRegisterAsUnsigned(r0_reg_info, 0) & UINT8_MAX); + else + value.GetScalar() = (uint8_t)(reg_ctx->ReadRegisterAsUnsigned(r0_reg_info, 0) & UINT8_MAX); + break; } - break; + } + else if (ClangASTContext::IsPointerType (value_type)) + { + uint32_t ptr = thread.GetRegisterContext()->ReadRegisterAsUnsigned(r0_reg_info, 0) & UINT32_MAX; + value.GetScalar() = ptr; + } + else + { + // not handled yet + return return_valobj_sp; } - return true; + // If we get here, we have a valid Value, so make our ValueObject out of it: + + return_valobj_sp = ValueObjectConstResult::Create( + thread.GetStackFrameAtIndex(0).get(), + ast_type.GetASTContext(), + value, + ConstString("")); + return return_valobj_sp; } bool |
