| //===-- 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/STLExtras.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 <vector> |
| |
| 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 = llvm::array_lengthof(g_register_infos); |
| 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<k_num_register_infos; ++i) |
| { |
| if (g_register_infos[i].name) |
| g_register_infos[i].name = ConstString(g_register_infos[i].name).GetCString(); |
| if (g_register_infos[i].alt_name) |
| g_register_infos[i].alt_name = ConstString(g_register_infos[i].alt_name).GetCString(); |
| } |
| } |
| count = k_num_register_infos; |
| return g_register_infos; |
| } |
| |
| |
| size_t |
| ABIMacOSX_arm::GetRedZoneSize () const |
| { |
| return 0; |
| } |
| |
| //------------------------------------------------------------------ |
| // Static Functions |
| //------------------------------------------------------------------ |
| ABISP |
| ABIMacOSX_arm::CreateInstance (const ArchSpec &arch) |
| { |
| static ABISP g_abi_sp; |
| const llvm::Triple::ArchType arch_type = arch.GetTriple().getArch(); |
| if ((arch_type == llvm::Triple::arm) || |
| (arch_type == llvm::Triple::thumb)) |
| { |
| if (!g_abi_sp) |
| g_abi_sp.reset (new ABIMacOSX_arm); |
| return g_abi_sp; |
| } |
| 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 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; |
| Error 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 |
| { |
| 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; |
| } |
| |
