| //===-- ABIMacOSX_arm.cpp -------------------------------------------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "ABIMacOSX_arm.h" |
| |
| #include <vector> |
| |
| #include "llvm/ADT/STLExtras.h" |
| #include "llvm/ADT/Triple.h" |
| |
| #include "lldb/Core/Module.h" |
| #include "lldb/Core/PluginManager.h" |
| #include "lldb/Core/Value.h" |
| #include "lldb/Core/ValueObjectConstResult.h" |
| #include "lldb/Symbol/UnwindPlan.h" |
| #include "lldb/Target/Process.h" |
| #include "lldb/Target/RegisterContext.h" |
| #include "lldb/Target/Target.h" |
| #include "lldb/Target/Thread.h" |
| #include "lldb/Utility/ConstString.h" |
| #include "lldb/Utility/RegisterValue.h" |
| #include "lldb/Utility/Scalar.h" |
| #include "lldb/Utility/Status.h" |
| |
| #include "Plugins/Process/Utility/ARMDefines.h" |
| #include "Utility/ARM_DWARF_Registers.h" |
| #include "Utility/ARM_ehframe_Registers.h" |
| |
| using namespace lldb; |
| using namespace lldb_private; |
| |
| static const RegisterInfo g_register_infos[] = { |
| // NAME ALT SZ OFF ENCODING FORMAT EH_FRAME |
| // DWARF GENERIC PROCESS PLUGIN |
| // LLDB NATIVE |
| // ========== ======= == === ============= ============ |
| // ======================= =================== =========================== |
| // ======================= ====================== |
| {"r0", |
| "arg1", |
| 4, |
| 0, |
| eEncodingUint, |
| eFormatHex, |
| {ehframe_r0, dwarf_r0, LLDB_REGNUM_GENERIC_ARG1, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"r1", |
| "arg2", |
| 4, |
| 0, |
| eEncodingUint, |
| eFormatHex, |
| {ehframe_r1, dwarf_r1, LLDB_REGNUM_GENERIC_ARG2, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"r2", |
| "arg3", |
| 4, |
| 0, |
| eEncodingUint, |
| eFormatHex, |
| {ehframe_r2, dwarf_r2, LLDB_REGNUM_GENERIC_ARG3, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"r3", |
| "arg4", |
| 4, |
| 0, |
| eEncodingUint, |
| eFormatHex, |
| {ehframe_r3, dwarf_r3, LLDB_REGNUM_GENERIC_ARG4, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"r4", |
| nullptr, |
| 4, |
| 0, |
| eEncodingUint, |
| eFormatHex, |
| {ehframe_r4, dwarf_r4, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"r5", |
| nullptr, |
| 4, |
| 0, |
| eEncodingUint, |
| eFormatHex, |
| {ehframe_r5, dwarf_r5, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"r6", |
| nullptr, |
| 4, |
| 0, |
| eEncodingUint, |
| eFormatHex, |
| {ehframe_r6, dwarf_r6, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"r7", |
| nullptr, |
| 4, |
| 0, |
| eEncodingUint, |
| eFormatHex, |
| {ehframe_r7, dwarf_r7, LLDB_REGNUM_GENERIC_FP, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"r8", |
| nullptr, |
| 4, |
| 0, |
| eEncodingUint, |
| eFormatHex, |
| {ehframe_r8, dwarf_r8, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"r9", |
| nullptr, |
| 4, |
| 0, |
| eEncodingUint, |
| eFormatHex, |
| {ehframe_r9, dwarf_r9, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"r10", |
| nullptr, |
| 4, |
| 0, |
| eEncodingUint, |
| eFormatHex, |
| {ehframe_r10, dwarf_r10, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"r11", |
| nullptr, |
| 4, |
| 0, |
| eEncodingUint, |
| eFormatHex, |
| {ehframe_r11, dwarf_r11, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"r12", |
| nullptr, |
| 4, |
| 0, |
| eEncodingUint, |
| eFormatHex, |
| {ehframe_r12, dwarf_r12, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"sp", |
| "r13", |
| 4, |
| 0, |
| eEncodingUint, |
| eFormatHex, |
| {ehframe_sp, dwarf_sp, LLDB_REGNUM_GENERIC_SP, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"lr", |
| "r14", |
| 4, |
| 0, |
| eEncodingUint, |
| eFormatHex, |
| {ehframe_lr, dwarf_lr, LLDB_REGNUM_GENERIC_RA, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"pc", |
| "r15", |
| 4, |
| 0, |
| eEncodingUint, |
| eFormatHex, |
| {ehframe_pc, dwarf_pc, LLDB_REGNUM_GENERIC_PC, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"cpsr", |
| "psr", |
| 4, |
| 0, |
| eEncodingUint, |
| eFormatHex, |
| {ehframe_cpsr, dwarf_cpsr, LLDB_REGNUM_GENERIC_FLAGS, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"s0", |
| nullptr, |
| 4, |
| 0, |
| eEncodingIEEE754, |
| eFormatFloat, |
| {LLDB_INVALID_REGNUM, dwarf_s0, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"s1", |
| nullptr, |
| 4, |
| 0, |
| eEncodingIEEE754, |
| eFormatFloat, |
| {LLDB_INVALID_REGNUM, dwarf_s1, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"s2", |
| nullptr, |
| 4, |
| 0, |
| eEncodingIEEE754, |
| eFormatFloat, |
| {LLDB_INVALID_REGNUM, dwarf_s2, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"s3", |
| nullptr, |
| 4, |
| 0, |
| eEncodingIEEE754, |
| eFormatFloat, |
| {LLDB_INVALID_REGNUM, dwarf_s3, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"s4", |
| nullptr, |
| 4, |
| 0, |
| eEncodingIEEE754, |
| eFormatFloat, |
| {LLDB_INVALID_REGNUM, dwarf_s4, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"s5", |
| nullptr, |
| 4, |
| 0, |
| eEncodingIEEE754, |
| eFormatFloat, |
| {LLDB_INVALID_REGNUM, dwarf_s5, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"s6", |
| nullptr, |
| 4, |
| 0, |
| eEncodingIEEE754, |
| eFormatFloat, |
| {LLDB_INVALID_REGNUM, dwarf_s6, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"s7", |
| nullptr, |
| 4, |
| 0, |
| eEncodingIEEE754, |
| eFormatFloat, |
| {LLDB_INVALID_REGNUM, dwarf_s7, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"s8", |
| nullptr, |
| 4, |
| 0, |
| eEncodingIEEE754, |
| eFormatFloat, |
| {LLDB_INVALID_REGNUM, dwarf_s8, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"s9", |
| nullptr, |
| 4, |
| 0, |
| eEncodingIEEE754, |
| eFormatFloat, |
| {LLDB_INVALID_REGNUM, dwarf_s9, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"s10", |
| nullptr, |
| 4, |
| 0, |
| eEncodingIEEE754, |
| eFormatFloat, |
| {LLDB_INVALID_REGNUM, dwarf_s10, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"s11", |
| nullptr, |
| 4, |
| 0, |
| eEncodingIEEE754, |
| eFormatFloat, |
| {LLDB_INVALID_REGNUM, dwarf_s11, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"s12", |
| nullptr, |
| 4, |
| 0, |
| eEncodingIEEE754, |
| eFormatFloat, |
| {LLDB_INVALID_REGNUM, dwarf_s12, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"s13", |
| nullptr, |
| 4, |
| 0, |
| eEncodingIEEE754, |
| eFormatFloat, |
| {LLDB_INVALID_REGNUM, dwarf_s13, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"s14", |
| nullptr, |
| 4, |
| 0, |
| eEncodingIEEE754, |
| eFormatFloat, |
| {LLDB_INVALID_REGNUM, dwarf_s14, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"s15", |
| nullptr, |
| 4, |
| 0, |
| eEncodingIEEE754, |
| eFormatFloat, |
| {LLDB_INVALID_REGNUM, dwarf_s15, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"s16", |
| nullptr, |
| 4, |
| 0, |
| eEncodingIEEE754, |
| eFormatFloat, |
| {LLDB_INVALID_REGNUM, dwarf_s16, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"s17", |
| nullptr, |
| 4, |
| 0, |
| eEncodingIEEE754, |
| eFormatFloat, |
| {LLDB_INVALID_REGNUM, dwarf_s17, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"s18", |
| nullptr, |
| 4, |
| 0, |
| eEncodingIEEE754, |
| eFormatFloat, |
| {LLDB_INVALID_REGNUM, dwarf_s18, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"s19", |
| nullptr, |
| 4, |
| 0, |
| eEncodingIEEE754, |
| eFormatFloat, |
| {LLDB_INVALID_REGNUM, dwarf_s19, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"s20", |
| nullptr, |
| 4, |
| 0, |
| eEncodingIEEE754, |
| eFormatFloat, |
| {LLDB_INVALID_REGNUM, dwarf_s20, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"s21", |
| nullptr, |
| 4, |
| 0, |
| eEncodingIEEE754, |
| eFormatFloat, |
| {LLDB_INVALID_REGNUM, dwarf_s21, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"s22", |
| nullptr, |
| 4, |
| 0, |
| eEncodingIEEE754, |
| eFormatFloat, |
| {LLDB_INVALID_REGNUM, dwarf_s22, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"s23", |
| nullptr, |
| 4, |
| 0, |
| eEncodingIEEE754, |
| eFormatFloat, |
| {LLDB_INVALID_REGNUM, dwarf_s23, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"s24", |
| nullptr, |
| 4, |
| 0, |
| eEncodingIEEE754, |
| eFormatFloat, |
| {LLDB_INVALID_REGNUM, dwarf_s24, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"s25", |
| nullptr, |
| 4, |
| 0, |
| eEncodingIEEE754, |
| eFormatFloat, |
| {LLDB_INVALID_REGNUM, dwarf_s25, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"s26", |
| nullptr, |
| 4, |
| 0, |
| eEncodingIEEE754, |
| eFormatFloat, |
| {LLDB_INVALID_REGNUM, dwarf_s26, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"s27", |
| nullptr, |
| 4, |
| 0, |
| eEncodingIEEE754, |
| eFormatFloat, |
| {LLDB_INVALID_REGNUM, dwarf_s27, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"s28", |
| nullptr, |
| 4, |
| 0, |
| eEncodingIEEE754, |
| eFormatFloat, |
| {LLDB_INVALID_REGNUM, dwarf_s28, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"s29", |
| nullptr, |
| 4, |
| 0, |
| eEncodingIEEE754, |
| eFormatFloat, |
| {LLDB_INVALID_REGNUM, dwarf_s29, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"s30", |
| nullptr, |
| 4, |
| 0, |
| eEncodingIEEE754, |
| eFormatFloat, |
| {LLDB_INVALID_REGNUM, dwarf_s30, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"s31", |
| nullptr, |
| 4, |
| 0, |
| eEncodingIEEE754, |
| eFormatFloat, |
| {LLDB_INVALID_REGNUM, dwarf_s31, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"fpscr", |
| nullptr, |
| 4, |
| 0, |
| eEncodingUint, |
| eFormatHex, |
| {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"d0", |
| nullptr, |
| 8, |
| 0, |
| eEncodingIEEE754, |
| eFormatFloat, |
| {LLDB_INVALID_REGNUM, dwarf_d0, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"d1", |
| nullptr, |
| 8, |
| 0, |
| eEncodingIEEE754, |
| eFormatFloat, |
| {LLDB_INVALID_REGNUM, dwarf_d1, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"d2", |
| nullptr, |
| 8, |
| 0, |
| eEncodingIEEE754, |
| eFormatFloat, |
| {LLDB_INVALID_REGNUM, dwarf_d2, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"d3", |
| nullptr, |
| 8, |
| 0, |
| eEncodingIEEE754, |
| eFormatFloat, |
| {LLDB_INVALID_REGNUM, dwarf_d3, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"d4", |
| nullptr, |
| 8, |
| 0, |
| eEncodingIEEE754, |
| eFormatFloat, |
| {LLDB_INVALID_REGNUM, dwarf_d4, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"d5", |
| nullptr, |
| 8, |
| 0, |
| eEncodingIEEE754, |
| eFormatFloat, |
| {LLDB_INVALID_REGNUM, dwarf_d5, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"d6", |
| nullptr, |
| 8, |
| 0, |
| eEncodingIEEE754, |
| eFormatFloat, |
| {LLDB_INVALID_REGNUM, dwarf_d6, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"d7", |
| nullptr, |
| 8, |
| 0, |
| eEncodingIEEE754, |
| eFormatFloat, |
| {LLDB_INVALID_REGNUM, dwarf_d7, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"d8", |
| nullptr, |
| 8, |
| 0, |
| eEncodingIEEE754, |
| eFormatFloat, |
| {LLDB_INVALID_REGNUM, dwarf_d8, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"d9", |
| nullptr, |
| 8, |
| 0, |
| eEncodingIEEE754, |
| eFormatFloat, |
| {LLDB_INVALID_REGNUM, dwarf_d9, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"d10", |
| nullptr, |
| 8, |
| 0, |
| eEncodingIEEE754, |
| eFormatFloat, |
| {LLDB_INVALID_REGNUM, dwarf_d10, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"d11", |
| nullptr, |
| 8, |
| 0, |
| eEncodingIEEE754, |
| eFormatFloat, |
| {LLDB_INVALID_REGNUM, dwarf_d11, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"d12", |
| nullptr, |
| 8, |
| 0, |
| eEncodingIEEE754, |
| eFormatFloat, |
| {LLDB_INVALID_REGNUM, dwarf_d12, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"d13", |
| nullptr, |
| 8, |
| 0, |
| eEncodingIEEE754, |
| eFormatFloat, |
| {LLDB_INVALID_REGNUM, dwarf_d13, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"d14", |
| nullptr, |
| 8, |
| 0, |
| eEncodingIEEE754, |
| eFormatFloat, |
| {LLDB_INVALID_REGNUM, dwarf_d14, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"d15", |
| nullptr, |
| 8, |
| 0, |
| eEncodingIEEE754, |
| eFormatFloat, |
| {LLDB_INVALID_REGNUM, dwarf_d15, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"d16", |
| nullptr, |
| 8, |
| 0, |
| eEncodingIEEE754, |
| eFormatFloat, |
| {LLDB_INVALID_REGNUM, dwarf_d16, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"d17", |
| nullptr, |
| 8, |
| 0, |
| eEncodingIEEE754, |
| eFormatFloat, |
| {LLDB_INVALID_REGNUM, dwarf_d17, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"d18", |
| nullptr, |
| 8, |
| 0, |
| eEncodingIEEE754, |
| eFormatFloat, |
| {LLDB_INVALID_REGNUM, dwarf_d18, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"d19", |
| nullptr, |
| 8, |
| 0, |
| eEncodingIEEE754, |
| eFormatFloat, |
| {LLDB_INVALID_REGNUM, dwarf_d19, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"d20", |
| nullptr, |
| 8, |
| 0, |
| eEncodingIEEE754, |
| eFormatFloat, |
| {LLDB_INVALID_REGNUM, dwarf_d20, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"d21", |
| nullptr, |
| 8, |
| 0, |
| eEncodingIEEE754, |
| eFormatFloat, |
| {LLDB_INVALID_REGNUM, dwarf_d21, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"d22", |
| nullptr, |
| 8, |
| 0, |
| eEncodingIEEE754, |
| eFormatFloat, |
| {LLDB_INVALID_REGNUM, dwarf_d22, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"d23", |
| nullptr, |
| 8, |
| 0, |
| eEncodingIEEE754, |
| eFormatFloat, |
| {LLDB_INVALID_REGNUM, dwarf_d23, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"d24", |
| nullptr, |
| 8, |
| 0, |
| eEncodingIEEE754, |
| eFormatFloat, |
| {LLDB_INVALID_REGNUM, dwarf_d24, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"d25", |
| nullptr, |
| 8, |
| 0, |
| eEncodingIEEE754, |
| eFormatFloat, |
| {LLDB_INVALID_REGNUM, dwarf_d25, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"d26", |
| nullptr, |
| 8, |
| 0, |
| eEncodingIEEE754, |
| eFormatFloat, |
| {LLDB_INVALID_REGNUM, dwarf_d26, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"d27", |
| nullptr, |
| 8, |
| 0, |
| eEncodingIEEE754, |
| eFormatFloat, |
| {LLDB_INVALID_REGNUM, dwarf_d27, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"d28", |
| nullptr, |
| 8, |
| 0, |
| eEncodingIEEE754, |
| eFormatFloat, |
| {LLDB_INVALID_REGNUM, dwarf_d28, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"d29", |
| nullptr, |
| 8, |
| 0, |
| eEncodingIEEE754, |
| eFormatFloat, |
| {LLDB_INVALID_REGNUM, dwarf_d29, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"d30", |
| nullptr, |
| 8, |
| 0, |
| eEncodingIEEE754, |
| eFormatFloat, |
| {LLDB_INVALID_REGNUM, dwarf_d30, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"d31", |
| nullptr, |
| 8, |
| 0, |
| eEncodingIEEE754, |
| eFormatFloat, |
| {LLDB_INVALID_REGNUM, dwarf_d31, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"r8_usr", |
| nullptr, |
| 4, |
| 0, |
| eEncodingUint, |
| eFormatHex, |
| {LLDB_INVALID_REGNUM, dwarf_r8_usr, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"r9_usr", |
| nullptr, |
| 4, |
| 0, |
| eEncodingUint, |
| eFormatHex, |
| {LLDB_INVALID_REGNUM, dwarf_r9_usr, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"r10_usr", |
| nullptr, |
| 4, |
| 0, |
| eEncodingUint, |
| eFormatHex, |
| {LLDB_INVALID_REGNUM, dwarf_r10_usr, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"r11_usr", |
| nullptr, |
| 4, |
| 0, |
| eEncodingUint, |
| eFormatHex, |
| {LLDB_INVALID_REGNUM, dwarf_r11_usr, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"r12_usr", |
| nullptr, |
| 4, |
| 0, |
| eEncodingUint, |
| eFormatHex, |
| {LLDB_INVALID_REGNUM, dwarf_r12_usr, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"r13_usr", |
| "sp_usr", |
| 4, |
| 0, |
| eEncodingUint, |
| eFormatHex, |
| {LLDB_INVALID_REGNUM, dwarf_r13_usr, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"r14_usr", |
| "lr_usr", |
| 4, |
| 0, |
| eEncodingUint, |
| eFormatHex, |
| {LLDB_INVALID_REGNUM, dwarf_r14_usr, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"r8_fiq", |
| nullptr, |
| 4, |
| 0, |
| eEncodingUint, |
| eFormatHex, |
| {LLDB_INVALID_REGNUM, dwarf_r8_fiq, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"r9_fiq", |
| nullptr, |
| 4, |
| 0, |
| eEncodingUint, |
| eFormatHex, |
| {LLDB_INVALID_REGNUM, dwarf_r9_fiq, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"r10_fiq", |
| nullptr, |
| 4, |
| 0, |
| eEncodingUint, |
| eFormatHex, |
| {LLDB_INVALID_REGNUM, dwarf_r10_fiq, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"r11_fiq", |
| nullptr, |
| 4, |
| 0, |
| eEncodingUint, |
| eFormatHex, |
| {LLDB_INVALID_REGNUM, dwarf_r11_fiq, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"r12_fiq", |
| nullptr, |
| 4, |
| 0, |
| eEncodingUint, |
| eFormatHex, |
| {LLDB_INVALID_REGNUM, dwarf_r12_fiq, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"r13_fiq", |
| "sp_fiq", |
| 4, |
| 0, |
| eEncodingUint, |
| eFormatHex, |
| {LLDB_INVALID_REGNUM, dwarf_r13_fiq, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"r14_fiq", |
| "lr_fiq", |
| 4, |
| 0, |
| eEncodingUint, |
| eFormatHex, |
| {LLDB_INVALID_REGNUM, dwarf_r14_fiq, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"r13_irq", |
| "sp_irq", |
| 4, |
| 0, |
| eEncodingUint, |
| eFormatHex, |
| {LLDB_INVALID_REGNUM, dwarf_r13_irq, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"r14_irq", |
| "lr_irq", |
| 4, |
| 0, |
| eEncodingUint, |
| eFormatHex, |
| {LLDB_INVALID_REGNUM, dwarf_r14_irq, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"r13_abt", |
| "sp_abt", |
| 4, |
| 0, |
| eEncodingUint, |
| eFormatHex, |
| {LLDB_INVALID_REGNUM, dwarf_r13_abt, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"r14_abt", |
| "lr_abt", |
| 4, |
| 0, |
| eEncodingUint, |
| eFormatHex, |
| {LLDB_INVALID_REGNUM, dwarf_r14_abt, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"r13_und", |
| "sp_und", |
| 4, |
| 0, |
| eEncodingUint, |
| eFormatHex, |
| {LLDB_INVALID_REGNUM, dwarf_r13_und, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"r14_und", |
| "lr_und", |
| 4, |
| 0, |
| eEncodingUint, |
| eFormatHex, |
| {LLDB_INVALID_REGNUM, dwarf_r14_und, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"r13_svc", |
| "sp_svc", |
| 4, |
| 0, |
| eEncodingUint, |
| eFormatHex, |
| {LLDB_INVALID_REGNUM, dwarf_r13_svc, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {"r14_svc", |
| "lr_svc", |
| 4, |
| 0, |
| eEncodingUint, |
| eFormatHex, |
| {LLDB_INVALID_REGNUM, dwarf_r14_svc, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}}; |
| |
| static const uint32_t k_num_register_infos = |
| llvm::array_lengthof(g_register_infos); |
| |
| const lldb_private::RegisterInfo * |
| ABIMacOSX_arm::GetRegisterInfoArray(uint32_t &count) { |
| count = k_num_register_infos; |
| return g_register_infos; |
| } |
| |
| size_t ABIMacOSX_arm::GetRedZoneSize() const { return 0; } |
| |
| // Static Functions |
| |
| ABISP |
| ABIMacOSX_arm::CreateInstance(ProcessSP process_sp, const ArchSpec &arch) { |
| const llvm::Triple::ArchType arch_type = arch.GetTriple().getArch(); |
| const llvm::Triple::VendorType vendor_type = arch.GetTriple().getVendor(); |
| |
| if (vendor_type == llvm::Triple::Apple) { |
| if ((arch_type == llvm::Triple::arm) || |
| (arch_type == llvm::Triple::thumb)) { |
| return ABISP( |
| new ABIMacOSX_arm(std::move(process_sp), MakeMCRegisterInfo(arch))); |
| } |
| } |
| |
| return ABISP(); |
| } |
| |
| bool ABIMacOSX_arm::PrepareTrivialCall(Thread &thread, addr_t sp, |
| addr_t function_addr, addr_t return_addr, |
| llvm::ArrayRef<addr_t> args) const { |
| RegisterContext *reg_ctx = thread.GetRegisterContext().get(); |
| if (!reg_ctx) |
| return false; |
| |
| const uint32_t pc_reg_num = reg_ctx->ConvertRegisterKindToRegisterNumber( |
| eRegisterKindGeneric, LLDB_REGNUM_GENERIC_PC); |
| const uint32_t sp_reg_num = reg_ctx->ConvertRegisterKindToRegisterNumber( |
| eRegisterKindGeneric, LLDB_REGNUM_GENERIC_SP); |
| const uint32_t ra_reg_num = reg_ctx->ConvertRegisterKindToRegisterNumber( |
| eRegisterKindGeneric, LLDB_REGNUM_GENERIC_RA); |
| |
| RegisterValue reg_value; |
| |
| const char *reg_names[] = {"r0", "r1", "r2", "r3"}; |
| |
| llvm::ArrayRef<addr_t>::iterator ai = args.begin(), ae = args.end(); |
| |
| for (size_t i = 0; i < llvm::array_lengthof(reg_names); ++i) { |
| if (ai == ae) |
| break; |
| |
| reg_value.SetUInt32(*ai); |
| if (!reg_ctx->WriteRegister(reg_ctx->GetRegisterInfoByName(reg_names[i]), |
| reg_value)) |
| return false; |
| |
| ++ai; |
| } |
| |
| if (ai != ae) { |
| // Spill onto the stack |
| size_t num_stack_regs = ae - ai; |
| |
| sp -= (num_stack_regs * 4); |
| // Keep the stack 16 byte aligned |
| sp &= ~(16ull - 1ull); |
| |
| // just using arg1 to get the right size |
| const RegisterInfo *reg_info = reg_ctx->GetRegisterInfo( |
| eRegisterKindGeneric, LLDB_REGNUM_GENERIC_ARG1); |
| |
| addr_t arg_pos = sp; |
| |
| for (; ai != ae; ++ai) { |
| reg_value.SetUInt32(*ai); |
| if (reg_ctx |
| ->WriteRegisterValueToMemory(reg_info, arg_pos, |
| reg_info->byte_size, reg_value) |
| .Fail()) |
| return false; |
| arg_pos += reg_info->byte_size; |
| } |
| } |
| |
| TargetSP target_sp(thread.CalculateTarget()); |
| Address so_addr; |
| |
| // Figure out if our return address is ARM or Thumb by using the |
| // Address::GetCallableLoadAddress(Target*) which will figure out the ARM |
| // thumb-ness and set the correct address bits for us. |
| so_addr.SetLoadAddress(return_addr, target_sp.get()); |
| return_addr = so_addr.GetCallableLoadAddress(target_sp.get()); |
| |
| // Set "lr" to the return address |
| if (!reg_ctx->WriteRegisterFromUnsigned(ra_reg_num, return_addr)) |
| return false; |
| |
| // If bit zero or 1 is set, this must be a thumb function, no need to figure |
| // this out from the symbols. |
| so_addr.SetLoadAddress(function_addr, target_sp.get()); |
| function_addr = so_addr.GetCallableLoadAddress(target_sp.get()); |
| |
| const RegisterInfo *cpsr_reg_info = reg_ctx->GetRegisterInfoByName("cpsr"); |
| const uint32_t curr_cpsr = reg_ctx->ReadRegisterAsUnsigned(cpsr_reg_info, 0); |
| |
| // Make a new CPSR and mask out any Thumb IT (if/then) bits |
| uint32_t new_cpsr = curr_cpsr & ~MASK_CPSR_IT_MASK; |
| // If bit zero or 1 is set, this must be thumb... |
| if (function_addr & 1ull) |
| new_cpsr |= MASK_CPSR_T; // Set T bit in CPSR |
| else |
| new_cpsr &= ~MASK_CPSR_T; // Clear T bit in CPSR |
| |
| if (new_cpsr != curr_cpsr) { |
| if (!reg_ctx->WriteRegisterFromUnsigned(cpsr_reg_info, new_cpsr)) |
| return false; |
| } |
| |
| function_addr &= |
| ~1ull; // clear bit zero since the CPSR will take care of the mode for us |
| |
| // Update the sp - stack pointer - to be aligned to 16-bytes |
| sp &= ~(0xfull); |
| if (!reg_ctx->WriteRegisterFromUnsigned(sp_reg_num, sp)) |
| return false; |
| |
| // Set "pc" to the address requested |
| if (!reg_ctx->WriteRegisterFromUnsigned(pc_reg_num, function_addr)) |
| return false; |
| |
| return true; |
| } |
| |
| bool ABIMacOSX_arm::GetArgumentValues(Thread &thread, ValueList &values) const { |
| uint32_t num_values = values.GetSize(); |
| |
| ExecutionContext exe_ctx(thread.shared_from_this()); |
| // For now, assume that the types in the AST values come from the Target's |
| // scratch AST. |
| |
| // Extract the register context so we can read arguments from registers |
| |
| RegisterContext *reg_ctx = thread.GetRegisterContext().get(); |
| |
| if (!reg_ctx) |
| return false; |
| |
| addr_t sp = 0; |
| |
| for (uint32_t value_idx = 0; value_idx < num_values; ++value_idx) { |
| // We currently only support extracting values with Clang QualTypes. Do we |
| // care about others? |
| Value *value = values.GetValueAtIndex(value_idx); |
| |
| if (!value) |
| return false; |
| |
| CompilerType compiler_type = value->GetCompilerType(); |
| if (compiler_type) { |
| bool is_signed = false; |
| size_t bit_width = 0; |
| llvm::Optional<uint64_t> bit_size = compiler_type.GetBitSize(&thread); |
| if (!bit_size) |
| return false; |
| if (compiler_type.IsIntegerOrEnumerationType(is_signed)) |
| bit_width = *bit_size; |
| else if (compiler_type.IsPointerOrReferenceType()) |
| bit_width = *bit_size; |
| else |
| // We only handle integer, pointer and reference types currently... |
| return false; |
| |
| if (bit_width <= (exe_ctx.GetProcessRef().GetAddressByteSize() * 8)) { |
| if (value_idx < 4) { |
| // Arguments 1-4 are in r0-r3... |
| const RegisterInfo *arg_reg_info = nullptr; |
| // Search by generic ID first, then fall back to by name |
| uint32_t arg_reg_num = reg_ctx->ConvertRegisterKindToRegisterNumber( |
| eRegisterKindGeneric, LLDB_REGNUM_GENERIC_ARG1 + value_idx); |
| if (arg_reg_num != LLDB_INVALID_REGNUM) { |
| arg_reg_info = reg_ctx->GetRegisterInfoAtIndex(arg_reg_num); |
| } else { |
| switch (value_idx) { |
| case 0: |
| arg_reg_info = reg_ctx->GetRegisterInfoByName("r0"); |
| break; |
| case 1: |
| arg_reg_info = reg_ctx->GetRegisterInfoByName("r1"); |
| break; |
| case 2: |
| arg_reg_info = reg_ctx->GetRegisterInfoByName("r2"); |
| break; |
| case 3: |
| arg_reg_info = reg_ctx->GetRegisterInfoByName("r3"); |
| break; |
| } |
| } |
| |
| if (arg_reg_info) { |
| RegisterValue reg_value; |
| |
| if (reg_ctx->ReadRegister(arg_reg_info, reg_value)) { |
| if (is_signed) |
| reg_value.SignExtend(bit_width); |
| if (!reg_value.GetScalarValue(value->GetScalar())) |
| return false; |
| continue; |
| } |
| } |
| return false; |
| } else { |
| if (sp == 0) { |
| // Read the stack pointer if it already hasn't been read |
| sp = reg_ctx->GetSP(0); |
| if (sp == 0) |
| return false; |
| } |
| |
| // Arguments 5 on up are on the stack |
| const uint32_t arg_byte_size = (bit_width + (8 - 1)) / 8; |
| Status error; |
| if (!exe_ctx.GetProcessRef().ReadScalarIntegerFromMemory( |
| sp, arg_byte_size, is_signed, value->GetScalar(), error)) |
| return false; |
| |
| sp += arg_byte_size; |
| } |
| } |
| } |
| } |
| return true; |
| } |
| |
| bool ABIMacOSX_arm::IsArmv7kProcess() const { |
| bool is_armv7k = false; |
| ProcessSP process_sp(GetProcessSP()); |
| if (process_sp) { |
| const ArchSpec &arch(process_sp->GetTarget().GetArchitecture()); |
| const ArchSpec::Core system_core = arch.GetCore(); |
| if (system_core == ArchSpec::eCore_arm_armv7k) { |
| is_armv7k = true; |
| } |
| } |
| return is_armv7k; |
| } |
| |
| ValueObjectSP ABIMacOSX_arm::GetReturnValueObjectImpl( |
| Thread &thread, lldb_private::CompilerType &compiler_type) const { |
| Value value; |
| ValueObjectSP return_valobj_sp; |
| |
| if (!compiler_type) |
| return return_valobj_sp; |
| |
| value.SetCompilerType(compiler_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 (compiler_type.IsIntegerOrEnumerationType(is_signed)) { |
| llvm::Optional<uint64_t> bit_width = compiler_type.GetBitSize(&thread); |
| if (!bit_width) |
| return return_valobj_sp; |
| |
| switch (*bit_width) { |
| default: |
| return return_valobj_sp; |
| case 128: |
| if (IsArmv7kProcess()) { |
| // "A composite type not larger than 16 bytes is returned in r0-r3. The |
| // format is as if the result had been stored in memory at a word- |
| // aligned address and then loaded into r0-r3 with an ldm instruction" |
| { |
| const RegisterInfo *r1_reg_info = |
| reg_ctx->GetRegisterInfoByName("r1", 0); |
| const RegisterInfo *r2_reg_info = |
| reg_ctx->GetRegisterInfoByName("r2", 0); |
| const RegisterInfo *r3_reg_info = |
| reg_ctx->GetRegisterInfoByName("r3", 0); |
| if (r1_reg_info && r2_reg_info && r3_reg_info) { |
| llvm::Optional<uint64_t> byte_size = |
| compiler_type.GetByteSize(&thread); |
| if (!byte_size) |
| return return_valobj_sp; |
| ProcessSP process_sp(thread.GetProcess()); |
| if (*byte_size <= r0_reg_info->byte_size + r1_reg_info->byte_size + |
| r2_reg_info->byte_size + |
| r3_reg_info->byte_size && |
| process_sp) { |
| std::unique_ptr<DataBufferHeap> heap_data_up( |
| new DataBufferHeap(*byte_size, 0)); |
| const ByteOrder byte_order = process_sp->GetByteOrder(); |
| RegisterValue r0_reg_value; |
| RegisterValue r1_reg_value; |
| RegisterValue r2_reg_value; |
| RegisterValue r3_reg_value; |
| if (reg_ctx->ReadRegister(r0_reg_info, r0_reg_value) && |
| reg_ctx->ReadRegister(r1_reg_info, r1_reg_value) && |
| reg_ctx->ReadRegister(r2_reg_info, r2_reg_value) && |
| reg_ctx->ReadRegister(r3_reg_info, r3_reg_value)) { |
| Status error; |
| if (r0_reg_value.GetAsMemoryData(r0_reg_info, |
| heap_data_up->GetBytes() + 0, |
| 4, byte_order, error) && |
| r1_reg_value.GetAsMemoryData(r1_reg_info, |
| heap_data_up->GetBytes() + 4, |
| 4, byte_order, error) && |
| r2_reg_value.GetAsMemoryData(r2_reg_info, |
| heap_data_up->GetBytes() + 8, |
| 4, byte_order, error) && |
| r3_reg_value.GetAsMemoryData(r3_reg_info, |
| heap_data_up->GetBytes() + 12, |
| 4, byte_order, error)) { |
| DataExtractor data(DataBufferSP(heap_data_up.release()), |
| byte_order, |
| process_sp->GetAddressByteSize()); |
| |
| return_valobj_sp = ValueObjectConstResult::Create( |
| &thread, compiler_type, ConstString(""), data); |
| return return_valobj_sp; |
| } |
| } |
| } |
| } |
| } |
| } else { |
| return return_valobj_sp; |
| } |
| break; |
| 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 (compiler_type.IsPointerType()) { |
| uint32_t ptr = |
| thread.GetRegisterContext()->ReadRegisterAsUnsigned(r0_reg_info, 0) & |
| UINT32_MAX; |
| value.GetScalar() = ptr; |
| } else { |
| // not handled yet |
| return return_valobj_sp; |
| } |
| |
| // 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(), value, ConstString("")); |
| return return_valobj_sp; |
| } |
| |
| Status ABIMacOSX_arm::SetReturnValueObject(lldb::StackFrameSP &frame_sp, |
| lldb::ValueObjectSP &new_value_sp) { |
| Status error; |
| if (!new_value_sp) { |
| error.SetErrorString("Empty value object for return value."); |
| return error; |
| } |
| |
| CompilerType compiler_type = new_value_sp->GetCompilerType(); |
| if (!compiler_type) { |
| error.SetErrorString("Null clang type for return value."); |
| return error; |
| } |
| |
| Thread *thread = frame_sp->GetThread().get(); |
| |
| bool is_signed; |
| uint32_t count; |
| bool is_complex; |
| |
| RegisterContext *reg_ctx = thread->GetRegisterContext().get(); |
| |
| bool set_it_simple = false; |
| if (compiler_type.IsIntegerOrEnumerationType(is_signed) || |
| compiler_type.IsPointerType()) { |
| DataExtractor data; |
| Status data_error; |
| size_t num_bytes = new_value_sp->GetData(data, data_error); |
| if (data_error.Fail()) { |
| error.SetErrorStringWithFormat( |
| "Couldn't convert return value to raw data: %s", |
| data_error.AsCString()); |
| return error; |
| } |
| lldb::offset_t offset = 0; |
| if (num_bytes <= 8) { |
| const RegisterInfo *r0_info = reg_ctx->GetRegisterInfoByName("r0", 0); |
| if (num_bytes <= 4) { |
| uint32_t raw_value = data.GetMaxU32(&offset, num_bytes); |
| |
| if (reg_ctx->WriteRegisterFromUnsigned(r0_info, raw_value)) |
| set_it_simple = true; |
| } else { |
| uint32_t raw_value = data.GetMaxU32(&offset, 4); |
| |
| if (reg_ctx->WriteRegisterFromUnsigned(r0_info, raw_value)) { |
| const RegisterInfo *r1_info = reg_ctx->GetRegisterInfoByName("r1", 0); |
| uint32_t raw_value = data.GetMaxU32(&offset, num_bytes - offset); |
| |
| if (reg_ctx->WriteRegisterFromUnsigned(r1_info, raw_value)) |
| set_it_simple = true; |
| } |
| } |
| } else if (num_bytes <= 16 && IsArmv7kProcess()) { |
| // "A composite type not larger than 16 bytes is returned in r0-r3. The |
| // format is as if the result had been stored in memory at a word-aligned |
| // address and then loaded into r0-r3 with an ldm instruction" |
| |
| const RegisterInfo *r0_info = reg_ctx->GetRegisterInfoByName("r0", 0); |
| const RegisterInfo *r1_info = reg_ctx->GetRegisterInfoByName("r1", 0); |
| const RegisterInfo *r2_info = reg_ctx->GetRegisterInfoByName("r2", 0); |
| const RegisterInfo *r3_info = reg_ctx->GetRegisterInfoByName("r3", 0); |
| lldb::offset_t offset = 0; |
| uint32_t bytes_written = 4; |
| uint32_t raw_value = data.GetMaxU64(&offset, 4); |
| if (reg_ctx->WriteRegisterFromUnsigned(r0_info, raw_value) && |
| bytes_written <= num_bytes) { |
| bytes_written += 4; |
| raw_value = data.GetMaxU64(&offset, 4); |
| if (bytes_written <= num_bytes && |
| reg_ctx->WriteRegisterFromUnsigned(r1_info, raw_value)) { |
| bytes_written += 4; |
| raw_value = data.GetMaxU64(&offset, 4); |
| if (bytes_written <= num_bytes && |
| reg_ctx->WriteRegisterFromUnsigned(r2_info, raw_value)) { |
| bytes_written += 4; |
| raw_value = data.GetMaxU64(&offset, 4); |
| if (bytes_written <= num_bytes && |
| reg_ctx->WriteRegisterFromUnsigned(r3_info, raw_value)) { |
| set_it_simple = true; |
| } |
| } |
| } |
| } |
| } else { |
| error.SetErrorString("We don't support returning longer than 64 bit " |
| "integer values at present."); |
| } |
| } else if (compiler_type.IsFloatingPointType(count, is_complex)) { |
| if (is_complex) |
| error.SetErrorString( |
| "We don't support returning complex values at present"); |
| else |
| error.SetErrorString( |
| "We don't support returning float values at present"); |
| } |
| |
| if (!set_it_simple) |
| error.SetErrorString( |
| "We only support setting simple integer return types at present."); |
| |
| return error; |
| } |
| |
| bool ABIMacOSX_arm::CreateFunctionEntryUnwindPlan(UnwindPlan &unwind_plan) { |
| unwind_plan.Clear(); |
| unwind_plan.SetRegisterKind(eRegisterKindDWARF); |
| |
| uint32_t lr_reg_num = dwarf_lr; |
| uint32_t sp_reg_num = dwarf_sp; |
| uint32_t pc_reg_num = dwarf_pc; |
| |
| UnwindPlan::RowSP row(new UnwindPlan::Row); |
| |
| // Our Call Frame Address is the stack pointer value |
| row->GetCFAValue().SetIsRegisterPlusOffset(sp_reg_num, 0); |
| |
| // The previous PC is in the LR |
| row->SetRegisterLocationToRegister(pc_reg_num, lr_reg_num, true); |
| unwind_plan.AppendRow(row); |
| |
| // All other registers are the same. |
| |
| unwind_plan.SetSourceName("arm at-func-entry default"); |
| unwind_plan.SetSourcedFromCompiler(eLazyBoolNo); |
| |
| return true; |
| } |
| |
| bool ABIMacOSX_arm::CreateDefaultUnwindPlan(UnwindPlan &unwind_plan) { |
| unwind_plan.Clear(); |
| unwind_plan.SetRegisterKind(eRegisterKindDWARF); |
| |
| uint32_t fp_reg_num = |
| dwarf_r7; // apple uses r7 for all frames. Normal arm uses r11 |
| uint32_t pc_reg_num = dwarf_pc; |
| |
| UnwindPlan::RowSP row(new UnwindPlan::Row); |
| const int32_t ptr_size = 4; |
| |
| row->GetCFAValue().SetIsRegisterPlusOffset(fp_reg_num, 2 * ptr_size); |
| row->SetOffset(0); |
| row->SetUnspecifiedRegistersAreUndefined(true); |
| |
| row->SetRegisterLocationToAtCFAPlusOffset(fp_reg_num, ptr_size * -2, true); |
| row->SetRegisterLocationToAtCFAPlusOffset(pc_reg_num, ptr_size * -1, true); |
| |
| unwind_plan.AppendRow(row); |
| unwind_plan.SetSourceName("arm-apple-ios default unwind plan"); |
| unwind_plan.SetSourcedFromCompiler(eLazyBoolNo); |
| unwind_plan.SetUnwindPlanValidAtAllInstructions(eLazyBoolNo); |
| unwind_plan.SetUnwindPlanForSignalTrap(eLazyBoolNo); |
| |
| return true; |
| } |
| |
| // cf. "ARMv6 Function Calling Conventions" |
| // https://developer.apple.com/library/ios/documentation/Xcode/Conceptual/iPhoneOSABIReference/Articles/ARMv6FunctionCallingConventions.html |
| // and "ARMv7 Function Calling Conventions" |
| // https://developer.apple.com/library/ios/documentation/Xcode/Conceptual/iPhoneOSABIReference/Articles/ARMv7FunctionCallingConventions.html |
| |
| // ARMv7 on iOS general purpose reg rules: |
| // r0-r3 not preserved (used for argument passing) |
| // r4-r6 preserved |
| // r7 preserved (frame pointer) |
| // r8 preserved |
| // r9 not preserved (usable as volatile scratch register with iOS 3.x and |
| // later) |
| // r10-r11 preserved |
| // r12 not presrved |
| // r13 preserved (stack pointer) |
| // r14 not preserved (link register) |
| // r15 preserved (pc) |
| // cpsr not preserved (different rules for different bits) |
| |
| // ARMv7 on iOS floating point rules: |
| // d0-d7 not preserved (aka s0-s15, q0-q3) |
| // d8-d15 preserved (aka s16-s31, q4-q7) |
| // d16-d31 not preserved (aka q8-q15) |
| |
| bool ABIMacOSX_arm::RegisterIsVolatile(const RegisterInfo *reg_info) { |
| if (reg_info) { |
| // Volatile registers are: r0, r1, r2, r3, r9, r12, r13 (aka sp) |
| const char *name = reg_info->name; |
| if (name[0] == 'r') { |
| switch (name[1]) { |
| case '0': |
| return name[2] == '\0'; // r0 |
| case '1': |
| switch (name[2]) { |
| case '\0': |
| return true; // r1 |
| case '2': |
| case '3': |
| return name[3] == '\0'; // r12, r13 (sp) |
| default: |
| break; |
| } |
| break; |
| |
| case '2': |
| return name[2] == '\0'; // r2 |
| case '3': |
| return name[2] == '\0'; // r3 |
| case '9': |
| return name[2] == '\0'; // r9 (apple-ios only...) |
| |
| break; |
| } |
| } else if (name[0] == 'd') { |
| switch (name[1]) { |
| case '0': |
| return name[2] == '\0'; // d0 is volatile |
| |
| case '1': |
| switch (name[2]) { |
| case '\0': |
| return true; // d1 is volatile |
| case '6': |
| case '7': |
| case '8': |
| case '9': |
| return name[3] == '\0'; // d16 - d19 are volatile |
| default: |
| break; |
| } |
| break; |
| |
| case '2': |
| switch (name[2]) { |
| case '\0': |
| return true; // d2 is volatile |
| case '0': |
| case '1': |
| case '2': |
| case '3': |
| case '4': |
| case '5': |
| case '6': |
| case '7': |
| case '8': |
| case '9': |
| return name[3] == '\0'; // d20 - d29 are volatile |
| default: |
| break; |
| } |
| break; |
| |
| case '3': |
| switch (name[2]) { |
| case '\0': |
| return true; // d3 is volatile |
| case '0': |
| case '1': |
| return name[3] == '\0'; // d30 - d31 are volatile |
| default: |
| break; |
| } |
| break; |
| case '4': |
| case '5': |
| case '6': |
| case '7': |
| return name[2] == '\0'; // d4 - d7 are volatile |
| |
| default: |
| break; |
| } |
| } else if (name[0] == 's') { |
| switch (name[1]) { |
| case '0': |
| return name[2] == '\0'; // s0 is volatile |
| |
| case '1': |
| switch (name[2]) { |
| case '\0': |
| return true; // s1 is volatile |
| case '0': |
| case '1': |
| case '2': |
| case '3': |
| case '4': |
| case '5': |
| return name[3] == '\0'; // s10 - s15 are volatile |
| default: |
| break; |
| } |
| break; |
| |
| case '2': |
| case '3': |
| case '4': |
| case '5': |
| case '6': |
| case '7': |
| case '8': |
| case '9': |
| return name[2] == '\0'; // s2 - s9 are volatile |
| |
| default: |
| break; |
| } |
| } else if (name[0] == 'q') { |
| switch (name[1]) { |
| case '1': |
| switch (name[2]) { |
| case '\0': |
| return true; // q1 is volatile |
| case '0': |
| case '1': |
| case '2': |
| case '3': |
| case '4': |
| case '5': |
| return true; // q10-q15 are volatile |
| default: |
| break; |
| }; |
| break; |
| case '0': |
| case '2': |
| case '3': |
| return name[2] == '\0'; // q0-q3 are volatile |
| case '8': |
| case '9': |
| return name[2] == '\0'; // q8-q9 are volatile |
| default: |
| break; |
| } |
| } else if (name[0] == 's' && name[1] == 'p' && name[2] == '\0') |
| return true; |
| } |
| return false; |
| } |
| |
| void ABIMacOSX_arm::Initialize() { |
| PluginManager::RegisterPlugin(GetPluginNameStatic(), |
| "Mac OS X ABI for arm targets", CreateInstance); |
| } |
| |
| void ABIMacOSX_arm::Terminate() { |
| PluginManager::UnregisterPlugin(CreateInstance); |
| } |
| |
| lldb_private::ConstString ABIMacOSX_arm::GetPluginNameStatic() { |
| static ConstString g_name("macosx-arm"); |
| return g_name; |
| } |
| |
| // PluginInterface protocol |
| |
| lldb_private::ConstString ABIMacOSX_arm::GetPluginName() { |
| return GetPluginNameStatic(); |
| } |
| |
| uint32_t ABIMacOSX_arm::GetPluginVersion() { return 1; } |
