//===-- ABIMacOSX_arm.cpp --------------------------------------*- C++ -*-===// // // The LLVM Compiler Infrastructure // // This file is distributed under the University of Illinois Open Source // License. See LICENSE.TXT for details. // //===----------------------------------------------------------------------===// #include "ABIMacOSX_arm.h" #include "lldb/Core/ConstString.h" #include "lldb/Core/Error.h" #include "lldb/Core/Module.h" #include "lldb/Core/PluginManager.h" #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" #include "lldb/Target/RegisterContext.h" #include "lldb/Target/Target.h" #include "lldb/Target/Thread.h" #include "llvm/ADT/Triple.h" #include "Utility/ARM_DWARF_Registers.h" #include "Utility/ARM_GCC_Registers.h" #include "Plugins/Process/Utility/ARMDefines.h" #include using namespace lldb; using namespace lldb_private; static RegisterInfo g_register_infos[] = { // NAME ALT SZ OFF ENCODING FORMAT COMPILER DWARF GENERIC GDB LLDB NATIVE VALUE REGS INVALIDATE REGS // ========== ======= == === ============= ============ ======================= =================== =========================== ======================= ====================== ========== =============== { "r0", "arg1", 4, 0, eEncodingUint , eFormatHex, { gcc_r0, dwarf_r0, LLDB_REGNUM_GENERIC_ARG1, gdb_arm_r0, LLDB_INVALID_REGNUM }, NULL, NULL}, { "r1", "arg2", 4, 0, eEncodingUint , eFormatHex, { gcc_r1, dwarf_r1, LLDB_REGNUM_GENERIC_ARG2, gdb_arm_r1, LLDB_INVALID_REGNUM }, NULL, NULL}, { "r2", "arg3", 4, 0, eEncodingUint , eFormatHex, { gcc_r2, dwarf_r2, LLDB_REGNUM_GENERIC_ARG3, gdb_arm_r2, LLDB_INVALID_REGNUM }, NULL, NULL}, { "r3", "arg4", 4, 0, eEncodingUint , eFormatHex, { gcc_r3, dwarf_r3, LLDB_REGNUM_GENERIC_ARG4, gdb_arm_r3, LLDB_INVALID_REGNUM }, NULL, NULL}, { "r4", NULL, 4, 0, eEncodingUint , eFormatHex, { gcc_r4, dwarf_r4, LLDB_INVALID_REGNUM, gdb_arm_r4, LLDB_INVALID_REGNUM }, NULL, NULL}, { "r5", NULL, 4, 0, eEncodingUint , eFormatHex, { gcc_r5, dwarf_r5, LLDB_INVALID_REGNUM, gdb_arm_r5, LLDB_INVALID_REGNUM }, NULL, NULL}, { "r6", NULL, 4, 0, eEncodingUint , eFormatHex, { gcc_r6, dwarf_r6, LLDB_INVALID_REGNUM, gdb_arm_r6, LLDB_INVALID_REGNUM }, NULL, NULL}, { "r7", NULL, 4, 0, eEncodingUint , eFormatHex, { gcc_r7, dwarf_r7, LLDB_REGNUM_GENERIC_FP, gdb_arm_r7, LLDB_INVALID_REGNUM }, NULL, NULL}, { "r8", NULL, 4, 0, eEncodingUint , eFormatHex, { gcc_r8, dwarf_r8, LLDB_INVALID_REGNUM, gdb_arm_r8, LLDB_INVALID_REGNUM }, NULL, NULL}, { "r9", NULL, 4, 0, eEncodingUint , eFormatHex, { gcc_r9, dwarf_r9, LLDB_INVALID_REGNUM, gdb_arm_r9, LLDB_INVALID_REGNUM }, NULL, NULL}, { "r10", NULL, 4, 0, eEncodingUint , eFormatHex, { gcc_r10, dwarf_r10, LLDB_INVALID_REGNUM, gdb_arm_r10, LLDB_INVALID_REGNUM }, NULL, NULL}, { "r11", NULL, 4, 0, eEncodingUint , eFormatHex, { gcc_r11, dwarf_r11, LLDB_INVALID_REGNUM, gdb_arm_r11, LLDB_INVALID_REGNUM }, NULL, NULL}, { "r12", NULL, 4, 0, eEncodingUint , eFormatHex, { gcc_r12, dwarf_r12, LLDB_INVALID_REGNUM, gdb_arm_r12, LLDB_INVALID_REGNUM }, NULL, NULL}, { "sp", "r13", 4, 0, eEncodingUint , eFormatHex, { gcc_sp, dwarf_sp, LLDB_REGNUM_GENERIC_SP, gdb_arm_sp, LLDB_INVALID_REGNUM }, NULL, NULL}, { "lr", "r14", 4, 0, eEncodingUint , eFormatHex, { gcc_lr, dwarf_lr, LLDB_REGNUM_GENERIC_RA, gdb_arm_lr, LLDB_INVALID_REGNUM }, NULL, NULL}, { "pc", "r15", 4, 0, eEncodingUint , eFormatHex, { gcc_pc, dwarf_pc, LLDB_REGNUM_GENERIC_PC, gdb_arm_pc, LLDB_INVALID_REGNUM }, NULL, NULL}, { "cpsr", "psr", 4, 0, eEncodingUint , eFormatHex, { gcc_cpsr, dwarf_cpsr, LLDB_REGNUM_GENERIC_FLAGS, gdb_arm_cpsr, LLDB_INVALID_REGNUM }, NULL, NULL}, { "s0", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s0, LLDB_INVALID_REGNUM, gdb_arm_s0, LLDB_INVALID_REGNUM }, NULL, NULL}, { "s1", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s1, LLDB_INVALID_REGNUM, gdb_arm_s1, LLDB_INVALID_REGNUM }, NULL, NULL}, { "s2", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s2, LLDB_INVALID_REGNUM, gdb_arm_s2, LLDB_INVALID_REGNUM }, NULL, NULL}, { "s3", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s3, LLDB_INVALID_REGNUM, gdb_arm_s3, LLDB_INVALID_REGNUM }, NULL, NULL}, { "s4", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s4, LLDB_INVALID_REGNUM, gdb_arm_s4, LLDB_INVALID_REGNUM }, NULL, NULL}, { "s5", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s5, LLDB_INVALID_REGNUM, gdb_arm_s5, LLDB_INVALID_REGNUM }, NULL, NULL}, { "s6", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s6, LLDB_INVALID_REGNUM, gdb_arm_s6, LLDB_INVALID_REGNUM }, NULL, NULL}, { "s7", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s7, LLDB_INVALID_REGNUM, gdb_arm_s7, LLDB_INVALID_REGNUM }, NULL, NULL}, { "s8", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s8, LLDB_INVALID_REGNUM, gdb_arm_s8, LLDB_INVALID_REGNUM }, NULL, NULL}, { "s9", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s9, LLDB_INVALID_REGNUM, gdb_arm_s9, LLDB_INVALID_REGNUM }, NULL, NULL}, { "s10", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s10, LLDB_INVALID_REGNUM, gdb_arm_s10, LLDB_INVALID_REGNUM }, NULL, NULL}, { "s11", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s11, LLDB_INVALID_REGNUM, gdb_arm_s11, LLDB_INVALID_REGNUM }, NULL, NULL}, { "s12", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s12, LLDB_INVALID_REGNUM, gdb_arm_s12, LLDB_INVALID_REGNUM }, NULL, NULL}, { "s13", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s13, LLDB_INVALID_REGNUM, gdb_arm_s13, LLDB_INVALID_REGNUM }, NULL, NULL}, { "s14", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s14, LLDB_INVALID_REGNUM, gdb_arm_s14, LLDB_INVALID_REGNUM }, NULL, NULL}, { "s15", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s15, LLDB_INVALID_REGNUM, gdb_arm_s15, LLDB_INVALID_REGNUM }, NULL, NULL}, { "s16", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s16, LLDB_INVALID_REGNUM, gdb_arm_s16, LLDB_INVALID_REGNUM }, NULL, NULL}, { "s17", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s17, LLDB_INVALID_REGNUM, gdb_arm_s17, LLDB_INVALID_REGNUM }, NULL, NULL}, { "s18", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s18, LLDB_INVALID_REGNUM, gdb_arm_s18, LLDB_INVALID_REGNUM }, NULL, NULL}, { "s19", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s19, LLDB_INVALID_REGNUM, gdb_arm_s19, LLDB_INVALID_REGNUM }, NULL, NULL}, { "s20", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s20, LLDB_INVALID_REGNUM, gdb_arm_s20, LLDB_INVALID_REGNUM }, NULL, NULL}, { "s21", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s21, LLDB_INVALID_REGNUM, gdb_arm_s21, LLDB_INVALID_REGNUM }, NULL, NULL}, { "s22", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s22, LLDB_INVALID_REGNUM, gdb_arm_s22, LLDB_INVALID_REGNUM }, NULL, NULL}, { "s23", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s23, LLDB_INVALID_REGNUM, gdb_arm_s23, LLDB_INVALID_REGNUM }, NULL, NULL}, { "s24", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s24, LLDB_INVALID_REGNUM, gdb_arm_s24, LLDB_INVALID_REGNUM }, NULL, NULL}, { "s25", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s25, LLDB_INVALID_REGNUM, gdb_arm_s25, LLDB_INVALID_REGNUM }, NULL, NULL}, { "s26", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s26, LLDB_INVALID_REGNUM, gdb_arm_s26, LLDB_INVALID_REGNUM }, NULL, NULL}, { "s27", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s27, LLDB_INVALID_REGNUM, gdb_arm_s27, LLDB_INVALID_REGNUM }, NULL, NULL}, { "s28", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s28, LLDB_INVALID_REGNUM, gdb_arm_s28, LLDB_INVALID_REGNUM }, NULL, NULL}, { "s29", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s29, LLDB_INVALID_REGNUM, gdb_arm_s29, LLDB_INVALID_REGNUM }, NULL, NULL}, { "s30", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s30, LLDB_INVALID_REGNUM, gdb_arm_s30, LLDB_INVALID_REGNUM }, NULL, NULL}, { "s31", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s31, LLDB_INVALID_REGNUM, gdb_arm_s31, LLDB_INVALID_REGNUM }, NULL, NULL}, { "fpscr", NULL, 4, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,LLDB_INVALID_REGNUM, gdb_arm_fpscr, LLDB_INVALID_REGNUM }, NULL, NULL}, { "d0", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d0, LLDB_INVALID_REGNUM, gdb_arm_d0, LLDB_INVALID_REGNUM }, NULL, NULL}, { "d1", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d1, LLDB_INVALID_REGNUM, gdb_arm_d1, LLDB_INVALID_REGNUM }, NULL, NULL}, { "d2", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d2, LLDB_INVALID_REGNUM, gdb_arm_d2, LLDB_INVALID_REGNUM }, NULL, NULL}, { "d3", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d3, LLDB_INVALID_REGNUM, gdb_arm_d3, LLDB_INVALID_REGNUM }, NULL, NULL}, { "d4", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d4, LLDB_INVALID_REGNUM, gdb_arm_d4, LLDB_INVALID_REGNUM }, NULL, NULL}, { "d5", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d5, LLDB_INVALID_REGNUM, gdb_arm_d5, LLDB_INVALID_REGNUM }, NULL, NULL}, { "d6", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d6, LLDB_INVALID_REGNUM, gdb_arm_d6, LLDB_INVALID_REGNUM }, NULL, NULL}, { "d7", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d7, LLDB_INVALID_REGNUM, gdb_arm_d7, LLDB_INVALID_REGNUM }, NULL, NULL}, { "d8", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d8, LLDB_INVALID_REGNUM, gdb_arm_d8, LLDB_INVALID_REGNUM }, NULL, NULL}, { "d9", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d9, LLDB_INVALID_REGNUM, gdb_arm_d9, LLDB_INVALID_REGNUM }, NULL, NULL}, { "d10", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d10, LLDB_INVALID_REGNUM, gdb_arm_d10, LLDB_INVALID_REGNUM }, NULL, NULL}, { "d11", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d11, LLDB_INVALID_REGNUM, gdb_arm_d11, LLDB_INVALID_REGNUM }, NULL, NULL}, { "d12", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d12, LLDB_INVALID_REGNUM, gdb_arm_d12, LLDB_INVALID_REGNUM }, NULL, NULL}, { "d13", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d13, LLDB_INVALID_REGNUM, gdb_arm_d13, LLDB_INVALID_REGNUM }, NULL, NULL}, { "d14", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d14, LLDB_INVALID_REGNUM, gdb_arm_d14, LLDB_INVALID_REGNUM }, NULL, NULL}, { "d15", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d15, LLDB_INVALID_REGNUM, gdb_arm_d15, LLDB_INVALID_REGNUM }, NULL, NULL}, { "d16", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d16, LLDB_INVALID_REGNUM, gdb_arm_d16, LLDB_INVALID_REGNUM }, NULL, NULL}, { "d17", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d17, LLDB_INVALID_REGNUM, gdb_arm_d17, LLDB_INVALID_REGNUM }, NULL, NULL}, { "d18", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d18, LLDB_INVALID_REGNUM, gdb_arm_d18, LLDB_INVALID_REGNUM }, NULL, NULL}, { "d19", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d19, LLDB_INVALID_REGNUM, gdb_arm_d19, LLDB_INVALID_REGNUM }, NULL, NULL}, { "d20", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d20, LLDB_INVALID_REGNUM, gdb_arm_d20, LLDB_INVALID_REGNUM }, NULL, NULL}, { "d21", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d21, LLDB_INVALID_REGNUM, gdb_arm_d21, LLDB_INVALID_REGNUM }, NULL, NULL}, { "d22", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d22, LLDB_INVALID_REGNUM, gdb_arm_d22, LLDB_INVALID_REGNUM }, NULL, NULL}, { "d23", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d23, LLDB_INVALID_REGNUM, gdb_arm_d23, LLDB_INVALID_REGNUM }, NULL, NULL}, { "d24", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d24, LLDB_INVALID_REGNUM, gdb_arm_d24, LLDB_INVALID_REGNUM }, NULL, NULL}, { "d25", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d25, LLDB_INVALID_REGNUM, gdb_arm_d25, LLDB_INVALID_REGNUM }, NULL, NULL}, { "d26", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d26, LLDB_INVALID_REGNUM, gdb_arm_d26, LLDB_INVALID_REGNUM }, NULL, NULL}, { "d27", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d27, LLDB_INVALID_REGNUM, gdb_arm_d27, LLDB_INVALID_REGNUM }, NULL, NULL}, { "d28", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d28, LLDB_INVALID_REGNUM, gdb_arm_d28, LLDB_INVALID_REGNUM }, NULL, NULL}, { "d29", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d29, LLDB_INVALID_REGNUM, gdb_arm_d29, LLDB_INVALID_REGNUM }, NULL, NULL}, { "d30", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d30, LLDB_INVALID_REGNUM, gdb_arm_d30, LLDB_INVALID_REGNUM }, NULL, NULL}, { "d31", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d31, LLDB_INVALID_REGNUM, gdb_arm_d31, LLDB_INVALID_REGNUM }, NULL, NULL}, { "r8_usr", NULL, 4, 0, eEncodingUint , eFormatHex, { LLDB_INVALID_REGNUM, dwarf_r8_usr, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, NULL, NULL}, { "r9_usr", NULL, 4, 0, eEncodingUint , eFormatHex, { LLDB_INVALID_REGNUM, dwarf_r9_usr, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, NULL, NULL}, { "r10_usr", NULL, 4, 0, eEncodingUint , eFormatHex, { LLDB_INVALID_REGNUM, dwarf_r10_usr, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, NULL, NULL}, { "r11_usr", NULL, 4, 0, eEncodingUint , eFormatHex, { LLDB_INVALID_REGNUM, dwarf_r11_usr, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, NULL, NULL}, { "r12_usr", NULL, 4, 0, eEncodingUint , eFormatHex, { LLDB_INVALID_REGNUM, dwarf_r12_usr, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, NULL, NULL}, { "r13_usr", "sp_usr", 4, 0, eEncodingUint , eFormatHex, { LLDB_INVALID_REGNUM, dwarf_r13_usr, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, NULL, NULL}, { "r14_usr", "lr_usr", 4, 0, eEncodingUint , eFormatHex, { LLDB_INVALID_REGNUM, dwarf_r14_usr, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, NULL, NULL}, { "r8_fiq", NULL, 4, 0, eEncodingUint , eFormatHex, { LLDB_INVALID_REGNUM, dwarf_r8_fiq, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, NULL, NULL}, { "r9_fiq", NULL, 4, 0, eEncodingUint , eFormatHex, { LLDB_INVALID_REGNUM, dwarf_r9_fiq, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, NULL, NULL}, { "r10_fiq", NULL, 4, 0, eEncodingUint , eFormatHex, { LLDB_INVALID_REGNUM, dwarf_r10_fiq, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, NULL, NULL}, { "r11_fiq", NULL, 4, 0, eEncodingUint , eFormatHex, { LLDB_INVALID_REGNUM, dwarf_r11_fiq, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, NULL, NULL}, { "r12_fiq", NULL, 4, 0, eEncodingUint , eFormatHex, { LLDB_INVALID_REGNUM, dwarf_r12_fiq, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, NULL, NULL}, { "r13_fiq", "sp_fiq", 4, 0, eEncodingUint , eFormatHex, { LLDB_INVALID_REGNUM, dwarf_r13_fiq, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, NULL, NULL}, { "r14_fiq", "lr_fiq", 4, 0, eEncodingUint , eFormatHex, { LLDB_INVALID_REGNUM, dwarf_r14_fiq, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, NULL, NULL}, { "r13_irq", "sp_irq", 4, 0, eEncodingUint , eFormatHex, { LLDB_INVALID_REGNUM, dwarf_r13_irq, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, NULL, NULL}, { "r14_irq", "lr_irq", 4, 0, eEncodingUint , eFormatHex, { LLDB_INVALID_REGNUM, dwarf_r14_irq, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, NULL, NULL}, { "r13_abt", "sp_abt", 4, 0, eEncodingUint , eFormatHex, { LLDB_INVALID_REGNUM, dwarf_r13_abt, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, NULL, NULL}, { "r14_abt", "lr_abt", 4, 0, eEncodingUint , eFormatHex, { LLDB_INVALID_REGNUM, dwarf_r14_abt, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, NULL, NULL}, { "r13_und", "sp_und", 4, 0, eEncodingUint , eFormatHex, { LLDB_INVALID_REGNUM, dwarf_r13_und, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, NULL, NULL}, { "r14_und", "lr_und", 4, 0, eEncodingUint , eFormatHex, { LLDB_INVALID_REGNUM, dwarf_r14_und, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, NULL, NULL}, { "r13_svc", "sp_svc", 4, 0, eEncodingUint , eFormatHex, { LLDB_INVALID_REGNUM, dwarf_r13_svc, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, NULL, NULL}, { "r14_svc", "lr_svc", 4, 0, eEncodingUint , eFormatHex, { LLDB_INVALID_REGNUM, dwarf_r14_svc, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, NULL, NULL} }; static const uint32_t k_num_register_infos = sizeof(g_register_infos)/sizeof(RegisterInfo); static bool g_register_info_names_constified = false; const lldb_private::RegisterInfo * ABIMacOSX_arm::GetRegisterInfoArray (uint32_t &count) { // Make the C-string names and alt_names for the register infos into const // C-string values by having the ConstString unique the names in the global // constant C-string pool. if (!g_register_info_names_constified) { g_register_info_names_constified = true; for (uint32_t i=0; i 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::iterator ai = args.begin(), ae = args.end(); for (size_t i = 0; i < (sizeof(reg_names) / sizeof(reg_names[0])); ++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 8 byte aligned, not that we need to sp &= ~(8ull-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; // Set "sp" to the requested value if (!reg_ctx->WriteRegisterFromUnsigned (sp_reg_num, sp)) 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 // 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; ClangASTType clang_type = value->GetClangType(); if (clang_type) { bool is_signed = false; size_t bit_width = 0; if (clang_type.IsIntegerType (is_signed)) { bit_width = clang_type.GetBitSize(); } else if (clang_type.IsPointerOrReferenceType ()) { bit_width = clang_type.GetBitSize(); } 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 = NULL; // 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; Error error; if (!exe_ctx.GetProcessRef().ReadScalarIntegerFromMemory(sp, arg_byte_size, is_signed, value->GetScalar(), error)) return false; sp += arg_byte_size; } } } } return true; } ValueObjectSP ABIMacOSX_arm::GetReturnValueObjectImpl (Thread &thread, lldb_private::ClangASTType &clang_type) const { Value value; ValueObjectSP return_valobj_sp; if (!clang_type) return return_valobj_sp; clang::ASTContext *ast_context = clang_type.GetASTContext(); if (!ast_context) return return_valobj_sp; //value.SetContext (Value::eContextTypeClangType, clang_type.GetOpaqueQualType()); value.SetClangType (clang_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 (clang_type.IsIntegerType (is_signed)) { size_t bit_width = clang_type.GetBitSize(); switch (bit_width) { default: return return_valobj_sp; 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 (clang_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; } Error ABIMacOSX_arm::SetReturnValueObject(lldb::StackFrameSP &frame_sp, lldb::ValueObjectSP &new_value_sp) { Error error; if (!new_value_sp) { error.SetErrorString("Empty value object for return value."); return error; } ClangASTType clang_type = new_value_sp->GetClangType(); if (!clang_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 (clang_type.IsIntegerType (is_signed) || clang_type.IsPointerType()) { DataExtractor data; size_t num_bytes = new_value_sp->GetData(data); 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 { error.SetErrorString("We don't support returning longer than 64 bit integer values at present."); } } else if (clang_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->SetCFARegister (sp_reg_num); // 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->SetCFARegister (fp_reg_num); row->SetCFAOffset (2 * ptr_size); row->SetOffset (0); 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); 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; } 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': switch (name[2]) { case '\0': return true; // s2 is volatile default: break; } break; case '3': switch (name[2]) { case '\0': return true; // s3 is volatile default: break; } case '4': case '5': case '6': case '7': case '8': case '9': return name[2] == '\0'; // s4 - s9 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; }