diff options
Diffstat (limited to 'source/Plugins/ABI/SysV-x86_64/ABISysV_x86_64.cpp')
| -rw-r--r-- | source/Plugins/ABI/SysV-x86_64/ABISysV_x86_64.cpp | 27 |
1 files changed, 19 insertions, 8 deletions
diff --git a/source/Plugins/ABI/SysV-x86_64/ABISysV_x86_64.cpp b/source/Plugins/ABI/SysV-x86_64/ABISysV_x86_64.cpp index 776e7fea67c76..71d99c8c65d25 100644 --- a/source/Plugins/ABI/SysV-x86_64/ABISysV_x86_64.cpp +++ b/source/Plugins/ABI/SysV-x86_64/ABISysV_x86_64.cpp @@ -510,7 +510,7 @@ ABISysV_x86_64::GetArgumentValues (Thread &thread, if (clang_type.IsIntegerType (is_signed)) { ReadIntegerArgument(value->GetScalar(), - clang_type.GetBitSize(), + clang_type.GetBitSize(nullptr), is_signed, thread, argument_register_ids, @@ -520,7 +520,7 @@ ABISysV_x86_64::GetArgumentValues (Thread &thread, else if (clang_type.IsPointerType ()) { ReadIntegerArgument(value->GetScalar(), - clang_type.GetBitSize(), + clang_type.GetBitSize(nullptr), false, thread, argument_register_ids, @@ -590,7 +590,7 @@ ABISysV_x86_64::SetReturnValueObject(lldb::StackFrameSP &frame_sp, lldb::ValueOb error.SetErrorString ("We don't support returning complex values at present"); else { - size_t bit_width = clang_type.GetBitSize(); + size_t bit_width = clang_type.GetBitSize(nullptr); if (bit_width <= 64) { const RegisterInfo *xmm0_info = reg_ctx->GetRegisterInfoByName("xmm0", 0); @@ -658,7 +658,7 @@ ABISysV_x86_64::GetReturnValueObjectSimple (Thread &thread, { // Extract the register context so we can read arguments from registers - const size_t byte_size = return_clang_type.GetByteSize(); + const size_t byte_size = return_clang_type.GetByteSize(nullptr); uint64_t raw_value = thread.GetRegisterContext()->ReadRegisterAsUnsigned(reg_ctx->GetRegisterInfoByName("rax", 0), 0); const bool is_signed = (type_flags & eTypeIsSigned) != 0; switch (byte_size) @@ -707,7 +707,7 @@ ABISysV_x86_64::GetReturnValueObjectSimple (Thread &thread, } else { - const size_t byte_size = return_clang_type.GetByteSize(); + const size_t byte_size = return_clang_type.GetByteSize(nullptr); if (byte_size <= sizeof(long double)) { const RegisterInfo *xmm0_info = reg_ctx->GetRegisterInfoByName("xmm0", 0); @@ -755,7 +755,7 @@ ABISysV_x86_64::GetReturnValueObjectSimple (Thread &thread, } else if (type_flags & eTypeIsVector) { - const size_t byte_size = return_clang_type.GetByteSize(); + const size_t byte_size = return_clang_type.GetByteSize(nullptr); if (byte_size > 0) { @@ -821,7 +821,7 @@ ABISysV_x86_64::GetReturnValueObjectImpl (Thread &thread, ClangASTType &return_c if (!reg_ctx_sp) return return_valobj_sp; - const size_t bit_width = return_clang_type.GetBitSize(); + const size_t bit_width = return_clang_type.GetBitSize(nullptr); if (return_clang_type.IsAggregateType()) { Target *target = exe_ctx.GetTargetPtr(); @@ -869,7 +869,7 @@ ABISysV_x86_64::GetReturnValueObjectImpl (Thread &thread, ClangASTType &return_c uint32_t count; ClangASTType field_clang_type = return_clang_type.GetFieldAtIndex (idx, name, &field_bit_offset, NULL, NULL); - const size_t field_bit_width = field_clang_type.GetBitSize(); + const size_t field_bit_width = field_clang_type.GetBitSize(nullptr); // If there are any unaligned fields, this is stored in memory. if (field_bit_offset % field_bit_width != 0) @@ -1070,6 +1070,10 @@ ABISysV_x86_64::GetReturnValueObjectImpl (Thread &thread, ClangASTType &return_c return return_valobj_sp; } +// This defines the CFA as rsp+8 +// the saved pc is at CFA-8 (i.e. rsp+0) +// The saved rsp is CFA+0 + bool ABISysV_x86_64::CreateFunctionEntryUnwindPlan (UnwindPlan &unwind_plan) { @@ -1083,12 +1087,18 @@ ABISysV_x86_64::CreateFunctionEntryUnwindPlan (UnwindPlan &unwind_plan) row->SetCFARegister (sp_reg_num); row->SetCFAOffset (8); row->SetRegisterLocationToAtCFAPlusOffset(pc_reg_num, -8, false); + row->SetRegisterLocationToIsCFAPlusOffset(sp_reg_num, 0, true); unwind_plan.AppendRow (row); unwind_plan.SetSourceName ("x86_64 at-func-entry default"); unwind_plan.SetSourcedFromCompiler (eLazyBoolNo); return true; } +// This defines the CFA as rbp+16 +// The saved pc is at CFA-8 (i.e. rbp+8) +// The saved rbp is at CFA-16 (i.e. rbp+0) +// The saved rsp is CFA+0 + bool ABISysV_x86_64::CreateDefaultUnwindPlan (UnwindPlan &unwind_plan) { @@ -1132,6 +1142,7 @@ ABISysV_x86_64::RegisterIsVolatile (const RegisterInfo *reg_info) // (this doc is also commonly referred to as the x86-64/AMD64 psABI) // Edited by Michael Matz, Jan Hubicka, Andreas Jaeger, and Mark Mitchell // current version is 0.99.6 released 2012-07-02 at http://refspecs.linuxfoundation.org/elf/x86-64-abi-0.99.pdf +// It's being revised & updated at https://github.com/hjl-tools/x86-psABI/ bool ABISysV_x86_64::RegisterIsCalleeSaved (const RegisterInfo *reg_info) |