1 //===-- ABIMacOSX_arm.cpp --------------------------------------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 #include "ABIMacOSX_arm.h"
12 #include "lldb/Core/ConstString.h"
13 #include "lldb/Core/Error.h"
14 #include "lldb/Core/Module.h"
15 #include "lldb/Core/PluginManager.h"
16 #include "lldb/Core/RegisterValue.h"
17 #include "lldb/Core/Scalar.h"
18 #include "lldb/Core/Value.h"
19 #include "lldb/Core/ValueObjectConstResult.h"
20 #include "lldb/Symbol/ClangASTContext.h"
21 #include "lldb/Symbol/UnwindPlan.h"
22 #include "lldb/Target/Process.h"
23 #include "lldb/Target/RegisterContext.h"
24 #include "lldb/Target/Target.h"
25 #include "lldb/Target/Thread.h"
27 #include "llvm/ADT/Triple.h"
29 #include "Utility/ARM_DWARF_Registers.h"
30 #include "Utility/ARM_GCC_Registers.h"
31 #include "Plugins/Process/Utility/ARMDefines.h"
36 using namespace lldb_private;
38 static RegisterInfo g_register_infos[] =
40 // NAME ALT SZ OFF ENCODING FORMAT COMPILER DWARF GENERIC GDB LLDB NATIVE VALUE REGS INVALIDATE REGS
41 // ========== ======= == === ============= ============ ======================= =================== =========================== ======================= ====================== ========== ===============
42 { "r0", "arg1", 4, 0, eEncodingUint , eFormatHex, { gcc_r0, dwarf_r0, LLDB_REGNUM_GENERIC_ARG1, gdb_arm_r0, LLDB_INVALID_REGNUM }, NULL, NULL},
43 { "r1", "arg2", 4, 0, eEncodingUint , eFormatHex, { gcc_r1, dwarf_r1, LLDB_REGNUM_GENERIC_ARG2, gdb_arm_r1, LLDB_INVALID_REGNUM }, NULL, NULL},
44 { "r2", "arg3", 4, 0, eEncodingUint , eFormatHex, { gcc_r2, dwarf_r2, LLDB_REGNUM_GENERIC_ARG3, gdb_arm_r2, LLDB_INVALID_REGNUM }, NULL, NULL},
45 { "r3", "arg4", 4, 0, eEncodingUint , eFormatHex, { gcc_r3, dwarf_r3, LLDB_REGNUM_GENERIC_ARG4, gdb_arm_r3, LLDB_INVALID_REGNUM }, NULL, NULL},
46 { "r4", NULL, 4, 0, eEncodingUint , eFormatHex, { gcc_r4, dwarf_r4, LLDB_INVALID_REGNUM, gdb_arm_r4, LLDB_INVALID_REGNUM }, NULL, NULL},
47 { "r5", NULL, 4, 0, eEncodingUint , eFormatHex, { gcc_r5, dwarf_r5, LLDB_INVALID_REGNUM, gdb_arm_r5, LLDB_INVALID_REGNUM }, NULL, NULL},
48 { "r6", NULL, 4, 0, eEncodingUint , eFormatHex, { gcc_r6, dwarf_r6, LLDB_INVALID_REGNUM, gdb_arm_r6, LLDB_INVALID_REGNUM }, NULL, NULL},
49 { "r7", NULL, 4, 0, eEncodingUint , eFormatHex, { gcc_r7, dwarf_r7, LLDB_REGNUM_GENERIC_FP, gdb_arm_r7, LLDB_INVALID_REGNUM }, NULL, NULL},
50 { "r8", NULL, 4, 0, eEncodingUint , eFormatHex, { gcc_r8, dwarf_r8, LLDB_INVALID_REGNUM, gdb_arm_r8, LLDB_INVALID_REGNUM }, NULL, NULL},
51 { "r9", NULL, 4, 0, eEncodingUint , eFormatHex, { gcc_r9, dwarf_r9, LLDB_INVALID_REGNUM, gdb_arm_r9, LLDB_INVALID_REGNUM }, NULL, NULL},
52 { "r10", NULL, 4, 0, eEncodingUint , eFormatHex, { gcc_r10, dwarf_r10, LLDB_INVALID_REGNUM, gdb_arm_r10, LLDB_INVALID_REGNUM }, NULL, NULL},
53 { "r11", NULL, 4, 0, eEncodingUint , eFormatHex, { gcc_r11, dwarf_r11, LLDB_INVALID_REGNUM, gdb_arm_r11, LLDB_INVALID_REGNUM }, NULL, NULL},
54 { "r12", NULL, 4, 0, eEncodingUint , eFormatHex, { gcc_r12, dwarf_r12, LLDB_INVALID_REGNUM, gdb_arm_r12, LLDB_INVALID_REGNUM }, NULL, NULL},
55 { "sp", "r13", 4, 0, eEncodingUint , eFormatHex, { gcc_sp, dwarf_sp, LLDB_REGNUM_GENERIC_SP, gdb_arm_sp, LLDB_INVALID_REGNUM }, NULL, NULL},
56 { "lr", "r14", 4, 0, eEncodingUint , eFormatHex, { gcc_lr, dwarf_lr, LLDB_REGNUM_GENERIC_RA, gdb_arm_lr, LLDB_INVALID_REGNUM }, NULL, NULL},
57 { "pc", "r15", 4, 0, eEncodingUint , eFormatHex, { gcc_pc, dwarf_pc, LLDB_REGNUM_GENERIC_PC, gdb_arm_pc, LLDB_INVALID_REGNUM }, NULL, NULL},
58 { "cpsr", "psr", 4, 0, eEncodingUint , eFormatHex, { gcc_cpsr, dwarf_cpsr, LLDB_REGNUM_GENERIC_FLAGS, gdb_arm_cpsr, LLDB_INVALID_REGNUM }, NULL, NULL},
59 { "s0", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s0, LLDB_INVALID_REGNUM, gdb_arm_s0, LLDB_INVALID_REGNUM }, NULL, NULL},
60 { "s1", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s1, LLDB_INVALID_REGNUM, gdb_arm_s1, LLDB_INVALID_REGNUM }, NULL, NULL},
61 { "s2", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s2, LLDB_INVALID_REGNUM, gdb_arm_s2, LLDB_INVALID_REGNUM }, NULL, NULL},
62 { "s3", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s3, LLDB_INVALID_REGNUM, gdb_arm_s3, LLDB_INVALID_REGNUM }, NULL, NULL},
63 { "s4", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s4, LLDB_INVALID_REGNUM, gdb_arm_s4, LLDB_INVALID_REGNUM }, NULL, NULL},
64 { "s5", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s5, LLDB_INVALID_REGNUM, gdb_arm_s5, LLDB_INVALID_REGNUM }, NULL, NULL},
65 { "s6", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s6, LLDB_INVALID_REGNUM, gdb_arm_s6, LLDB_INVALID_REGNUM }, NULL, NULL},
66 { "s7", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s7, LLDB_INVALID_REGNUM, gdb_arm_s7, LLDB_INVALID_REGNUM }, NULL, NULL},
67 { "s8", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s8, LLDB_INVALID_REGNUM, gdb_arm_s8, LLDB_INVALID_REGNUM }, NULL, NULL},
68 { "s9", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s9, LLDB_INVALID_REGNUM, gdb_arm_s9, LLDB_INVALID_REGNUM }, NULL, NULL},
69 { "s10", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s10, LLDB_INVALID_REGNUM, gdb_arm_s10, LLDB_INVALID_REGNUM }, NULL, NULL},
70 { "s11", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s11, LLDB_INVALID_REGNUM, gdb_arm_s11, LLDB_INVALID_REGNUM }, NULL, NULL},
71 { "s12", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s12, LLDB_INVALID_REGNUM, gdb_arm_s12, LLDB_INVALID_REGNUM }, NULL, NULL},
72 { "s13", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s13, LLDB_INVALID_REGNUM, gdb_arm_s13, LLDB_INVALID_REGNUM }, NULL, NULL},
73 { "s14", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s14, LLDB_INVALID_REGNUM, gdb_arm_s14, LLDB_INVALID_REGNUM }, NULL, NULL},
74 { "s15", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s15, LLDB_INVALID_REGNUM, gdb_arm_s15, LLDB_INVALID_REGNUM }, NULL, NULL},
75 { "s16", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s16, LLDB_INVALID_REGNUM, gdb_arm_s16, LLDB_INVALID_REGNUM }, NULL, NULL},
76 { "s17", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s17, LLDB_INVALID_REGNUM, gdb_arm_s17, LLDB_INVALID_REGNUM }, NULL, NULL},
77 { "s18", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s18, LLDB_INVALID_REGNUM, gdb_arm_s18, LLDB_INVALID_REGNUM }, NULL, NULL},
78 { "s19", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s19, LLDB_INVALID_REGNUM, gdb_arm_s19, LLDB_INVALID_REGNUM }, NULL, NULL},
79 { "s20", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s20, LLDB_INVALID_REGNUM, gdb_arm_s20, LLDB_INVALID_REGNUM }, NULL, NULL},
80 { "s21", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s21, LLDB_INVALID_REGNUM, gdb_arm_s21, LLDB_INVALID_REGNUM }, NULL, NULL},
81 { "s22", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s22, LLDB_INVALID_REGNUM, gdb_arm_s22, LLDB_INVALID_REGNUM }, NULL, NULL},
82 { "s23", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s23, LLDB_INVALID_REGNUM, gdb_arm_s23, LLDB_INVALID_REGNUM }, NULL, NULL},
83 { "s24", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s24, LLDB_INVALID_REGNUM, gdb_arm_s24, LLDB_INVALID_REGNUM }, NULL, NULL},
84 { "s25", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s25, LLDB_INVALID_REGNUM, gdb_arm_s25, LLDB_INVALID_REGNUM }, NULL, NULL},
85 { "s26", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s26, LLDB_INVALID_REGNUM, gdb_arm_s26, LLDB_INVALID_REGNUM }, NULL, NULL},
86 { "s27", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s27, LLDB_INVALID_REGNUM, gdb_arm_s27, LLDB_INVALID_REGNUM }, NULL, NULL},
87 { "s28", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s28, LLDB_INVALID_REGNUM, gdb_arm_s28, LLDB_INVALID_REGNUM }, NULL, NULL},
88 { "s29", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s29, LLDB_INVALID_REGNUM, gdb_arm_s29, LLDB_INVALID_REGNUM }, NULL, NULL},
89 { "s30", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s30, LLDB_INVALID_REGNUM, gdb_arm_s30, LLDB_INVALID_REGNUM }, NULL, NULL},
90 { "s31", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s31, LLDB_INVALID_REGNUM, gdb_arm_s31, LLDB_INVALID_REGNUM }, NULL, NULL},
91 { "fpscr", NULL, 4, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,LLDB_INVALID_REGNUM, gdb_arm_fpscr, LLDB_INVALID_REGNUM }, NULL, NULL},
92 { "d0", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d0, LLDB_INVALID_REGNUM, gdb_arm_d0, LLDB_INVALID_REGNUM }, NULL, NULL},
93 { "d1", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d1, LLDB_INVALID_REGNUM, gdb_arm_d1, LLDB_INVALID_REGNUM }, NULL, NULL},
94 { "d2", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d2, LLDB_INVALID_REGNUM, gdb_arm_d2, LLDB_INVALID_REGNUM }, NULL, NULL},
95 { "d3", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d3, LLDB_INVALID_REGNUM, gdb_arm_d3, LLDB_INVALID_REGNUM }, NULL, NULL},
96 { "d4", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d4, LLDB_INVALID_REGNUM, gdb_arm_d4, LLDB_INVALID_REGNUM }, NULL, NULL},
97 { "d5", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d5, LLDB_INVALID_REGNUM, gdb_arm_d5, LLDB_INVALID_REGNUM }, NULL, NULL},
98 { "d6", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d6, LLDB_INVALID_REGNUM, gdb_arm_d6, LLDB_INVALID_REGNUM }, NULL, NULL},
99 { "d7", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d7, LLDB_INVALID_REGNUM, gdb_arm_d7, LLDB_INVALID_REGNUM }, NULL, NULL},
100 { "d8", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d8, LLDB_INVALID_REGNUM, gdb_arm_d8, LLDB_INVALID_REGNUM }, NULL, NULL},
101 { "d9", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d9, LLDB_INVALID_REGNUM, gdb_arm_d9, LLDB_INVALID_REGNUM }, NULL, NULL},
102 { "d10", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d10, LLDB_INVALID_REGNUM, gdb_arm_d10, LLDB_INVALID_REGNUM }, NULL, NULL},
103 { "d11", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d11, LLDB_INVALID_REGNUM, gdb_arm_d11, LLDB_INVALID_REGNUM }, NULL, NULL},
104 { "d12", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d12, LLDB_INVALID_REGNUM, gdb_arm_d12, LLDB_INVALID_REGNUM }, NULL, NULL},
105 { "d13", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d13, LLDB_INVALID_REGNUM, gdb_arm_d13, LLDB_INVALID_REGNUM }, NULL, NULL},
106 { "d14", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d14, LLDB_INVALID_REGNUM, gdb_arm_d14, LLDB_INVALID_REGNUM }, NULL, NULL},
107 { "d15", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d15, LLDB_INVALID_REGNUM, gdb_arm_d15, LLDB_INVALID_REGNUM }, NULL, NULL},
108 { "d16", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d16, LLDB_INVALID_REGNUM, gdb_arm_d16, LLDB_INVALID_REGNUM }, NULL, NULL},
109 { "d17", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d17, LLDB_INVALID_REGNUM, gdb_arm_d17, LLDB_INVALID_REGNUM }, NULL, NULL},
110 { "d18", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d18, LLDB_INVALID_REGNUM, gdb_arm_d18, LLDB_INVALID_REGNUM }, NULL, NULL},
111 { "d19", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d19, LLDB_INVALID_REGNUM, gdb_arm_d19, LLDB_INVALID_REGNUM }, NULL, NULL},
112 { "d20", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d20, LLDB_INVALID_REGNUM, gdb_arm_d20, LLDB_INVALID_REGNUM }, NULL, NULL},
113 { "d21", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d21, LLDB_INVALID_REGNUM, gdb_arm_d21, LLDB_INVALID_REGNUM }, NULL, NULL},
114 { "d22", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d22, LLDB_INVALID_REGNUM, gdb_arm_d22, LLDB_INVALID_REGNUM }, NULL, NULL},
115 { "d23", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d23, LLDB_INVALID_REGNUM, gdb_arm_d23, LLDB_INVALID_REGNUM }, NULL, NULL},
116 { "d24", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d24, LLDB_INVALID_REGNUM, gdb_arm_d24, LLDB_INVALID_REGNUM }, NULL, NULL},
117 { "d25", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d25, LLDB_INVALID_REGNUM, gdb_arm_d25, LLDB_INVALID_REGNUM }, NULL, NULL},
118 { "d26", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d26, LLDB_INVALID_REGNUM, gdb_arm_d26, LLDB_INVALID_REGNUM }, NULL, NULL},
119 { "d27", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d27, LLDB_INVALID_REGNUM, gdb_arm_d27, LLDB_INVALID_REGNUM }, NULL, NULL},
120 { "d28", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d28, LLDB_INVALID_REGNUM, gdb_arm_d28, LLDB_INVALID_REGNUM }, NULL, NULL},
121 { "d29", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d29, LLDB_INVALID_REGNUM, gdb_arm_d29, LLDB_INVALID_REGNUM }, NULL, NULL},
122 { "d30", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d30, LLDB_INVALID_REGNUM, gdb_arm_d30, LLDB_INVALID_REGNUM }, NULL, NULL},
123 { "d31", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d31, LLDB_INVALID_REGNUM, gdb_arm_d31, LLDB_INVALID_REGNUM }, NULL, NULL},
124 { "r8_usr", NULL, 4, 0, eEncodingUint , eFormatHex, { LLDB_INVALID_REGNUM, dwarf_r8_usr, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, NULL, NULL},
125 { "r9_usr", NULL, 4, 0, eEncodingUint , eFormatHex, { LLDB_INVALID_REGNUM, dwarf_r9_usr, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, NULL, NULL},
126 { "r10_usr", NULL, 4, 0, eEncodingUint , eFormatHex, { LLDB_INVALID_REGNUM, dwarf_r10_usr, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, NULL, NULL},
127 { "r11_usr", NULL, 4, 0, eEncodingUint , eFormatHex, { LLDB_INVALID_REGNUM, dwarf_r11_usr, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, NULL, NULL},
128 { "r12_usr", NULL, 4, 0, eEncodingUint , eFormatHex, { LLDB_INVALID_REGNUM, dwarf_r12_usr, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, NULL, NULL},
129 { "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},
130 { "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},
131 { "r8_fiq", NULL, 4, 0, eEncodingUint , eFormatHex, { LLDB_INVALID_REGNUM, dwarf_r8_fiq, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, NULL, NULL},
132 { "r9_fiq", NULL, 4, 0, eEncodingUint , eFormatHex, { LLDB_INVALID_REGNUM, dwarf_r9_fiq, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, NULL, NULL},
133 { "r10_fiq", NULL, 4, 0, eEncodingUint , eFormatHex, { LLDB_INVALID_REGNUM, dwarf_r10_fiq, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, NULL, NULL},
134 { "r11_fiq", NULL, 4, 0, eEncodingUint , eFormatHex, { LLDB_INVALID_REGNUM, dwarf_r11_fiq, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, NULL, NULL},
135 { "r12_fiq", NULL, 4, 0, eEncodingUint , eFormatHex, { LLDB_INVALID_REGNUM, dwarf_r12_fiq, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, NULL, NULL},
136 { "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},
137 { "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},
138 { "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},
139 { "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},
140 { "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},
141 { "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},
142 { "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},
143 { "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},
144 { "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},
145 { "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}
147 static const uint32_t k_num_register_infos = sizeof(g_register_infos)/sizeof(RegisterInfo);
148 static bool g_register_info_names_constified = false;
150 const lldb_private::RegisterInfo *
151 ABIMacOSX_arm::GetRegisterInfoArray (uint32_t &count)
153 // Make the C-string names and alt_names for the register infos into const
154 // C-string values by having the ConstString unique the names in the global
155 // constant C-string pool.
156 if (!g_register_info_names_constified)
158 g_register_info_names_constified = true;
159 for (uint32_t i=0; i<k_num_register_infos; ++i)
161 if (g_register_infos[i].name)
162 g_register_infos[i].name = ConstString(g_register_infos[i].name).GetCString();
163 if (g_register_infos[i].alt_name)
164 g_register_infos[i].alt_name = ConstString(g_register_infos[i].alt_name).GetCString();
167 count = k_num_register_infos;
168 return g_register_infos;
173 ABIMacOSX_arm::GetRedZoneSize () const
178 //------------------------------------------------------------------
180 //------------------------------------------------------------------
182 ABIMacOSX_arm::CreateInstance (const ArchSpec &arch)
184 static ABISP g_abi_sp;
185 const llvm::Triple::ArchType arch_type = arch.GetTriple().getArch();
186 if ((arch_type == llvm::Triple::arm) ||
187 (arch_type == llvm::Triple::thumb))
190 g_abi_sp.reset (new ABIMacOSX_arm);
197 ABIMacOSX_arm::PrepareTrivialCall (Thread &thread,
199 addr_t function_addr,
206 addr_t *arg6_ptr) const
208 RegisterContext *reg_ctx = thread.GetRegisterContext().get();
212 const uint32_t pc_reg_num = reg_ctx->ConvertRegisterKindToRegisterNumber (eRegisterKindGeneric, LLDB_REGNUM_GENERIC_PC);
213 const uint32_t sp_reg_num = reg_ctx->ConvertRegisterKindToRegisterNumber (eRegisterKindGeneric, LLDB_REGNUM_GENERIC_SP);
214 const uint32_t ra_reg_num = reg_ctx->ConvertRegisterKindToRegisterNumber (eRegisterKindGeneric, LLDB_REGNUM_GENERIC_RA);
216 RegisterValue reg_value;
220 reg_value.SetUInt32(*arg1_ptr);
221 if (!reg_ctx->WriteRegister (reg_ctx->GetRegisterInfoByName("r0"), reg_value))
226 reg_value.SetUInt32(*arg2_ptr);
227 if (!reg_ctx->WriteRegister (reg_ctx->GetRegisterInfoByName("r1"), reg_value))
232 reg_value.SetUInt32(*arg3_ptr);
233 if (!reg_ctx->WriteRegister (reg_ctx->GetRegisterInfoByName("r2"), reg_value))
237 reg_value.SetUInt32(*arg4_ptr);
238 const RegisterInfo *reg_info = reg_ctx->GetRegisterInfoByName("r3");
239 if (!reg_ctx->WriteRegister (reg_info, reg_value))
243 // Keep the stack 8 byte aligned, not that we need to
246 reg_value.SetUInt32(*arg5_ptr);
247 if (reg_ctx->WriteRegisterValueToMemory (reg_info, sp, reg_info->byte_size, reg_value).Fail())
251 reg_value.SetUInt32(*arg6_ptr);
252 if (reg_ctx->WriteRegisterValueToMemory (reg_info, sp + 4, reg_info->byte_size, reg_value).Fail())
262 TargetSP target_sp (thread.CalculateTarget());
265 // Figure out if our return address is ARM or Thumb by using the
266 // Address::GetCallableLoadAddress(Target*) which will figure out the ARM
267 // thumb-ness and set the correct address bits for us.
268 so_addr.SetLoadAddress (return_addr, target_sp.get());
269 return_addr = so_addr.GetCallableLoadAddress (target_sp.get());
271 // Set "lr" to the return address
272 if (!reg_ctx->WriteRegisterFromUnsigned (ra_reg_num, return_addr))
275 // Set "sp" to the requested value
276 if (!reg_ctx->WriteRegisterFromUnsigned (sp_reg_num, sp))
279 // If bit zero or 1 is set, this must be a thumb function, no need to figure
280 // this out from the symbols.
281 so_addr.SetLoadAddress (function_addr, target_sp.get());
282 function_addr = so_addr.GetCallableLoadAddress (target_sp.get());
284 const RegisterInfo *cpsr_reg_info = reg_ctx->GetRegisterInfoByName("cpsr");
285 const uint32_t curr_cpsr = reg_ctx->ReadRegisterAsUnsigned(cpsr_reg_info, 0);
287 // Make a new CPSR and mask out any Thumb IT (if/then) bits
288 uint32_t new_cpsr = curr_cpsr & ~MASK_CPSR_IT_MASK;
289 // If bit zero or 1 is set, this must be thumb...
290 if (function_addr & 1ull)
291 new_cpsr |= MASK_CPSR_T; // Set T bit in CPSR
293 new_cpsr &= ~MASK_CPSR_T; // Clear T bit in CPSR
295 if (new_cpsr != curr_cpsr)
297 if (!reg_ctx->WriteRegisterFromUnsigned (cpsr_reg_info, new_cpsr))
301 function_addr &= ~1ull; // clear bit zero since the CPSR will take care of the mode for us
303 // Set "pc" to the address requested
304 if (!reg_ctx->WriteRegisterFromUnsigned (pc_reg_num, function_addr))
311 ABIMacOSX_arm::GetArgumentValues (Thread &thread,
312 ValueList &values) const
314 uint32_t num_values = values.GetSize();
317 ExecutionContext exe_ctx (thread.shared_from_this());
318 // For now, assume that the types in the AST values come from the Target's
321 // Extract the register context so we can read arguments from registers
323 RegisterContext *reg_ctx = thread.GetRegisterContext().get();
330 for (uint32_t value_idx = 0; value_idx < num_values; ++value_idx)
332 // We currently only support extracting values with Clang QualTypes.
333 // Do we care about others?
334 Value *value = values.GetValueAtIndex(value_idx);
339 ClangASTType clang_type = value->GetClangType();
342 bool is_signed = false;
343 size_t bit_width = 0;
344 if (clang_type.IsIntegerType (is_signed))
346 bit_width = clang_type.GetBitSize();
348 else if (clang_type.IsPointerOrReferenceType ())
350 bit_width = clang_type.GetBitSize();
354 // We only handle integer, pointer and reference types currently...
358 if (bit_width <= (exe_ctx.GetProcessRef().GetAddressByteSize() * 8))
362 // Arguments 1-4 are in r0-r3...
363 const RegisterInfo *arg_reg_info = NULL;
364 // Search by generic ID first, then fall back to by name
365 uint32_t arg_reg_num = reg_ctx->ConvertRegisterKindToRegisterNumber (eRegisterKindGeneric, LLDB_REGNUM_GENERIC_ARG1 + value_idx);
366 if (arg_reg_num != LLDB_INVALID_REGNUM)
368 arg_reg_info = reg_ctx->GetRegisterInfoAtIndex(arg_reg_num);
374 case 0: arg_reg_info = reg_ctx->GetRegisterInfoByName("r0"); break;
375 case 1: arg_reg_info = reg_ctx->GetRegisterInfoByName("r1"); break;
376 case 2: arg_reg_info = reg_ctx->GetRegisterInfoByName("r2"); break;
377 case 3: arg_reg_info = reg_ctx->GetRegisterInfoByName("r3"); break;
383 RegisterValue reg_value;
385 if (reg_ctx->ReadRegister(arg_reg_info, reg_value))
388 reg_value.SignExtend(bit_width);
389 if (!reg_value.GetScalarValue(value->GetScalar()))
400 // Read the stack pointer if it already hasn't been read
401 sp = reg_ctx->GetSP(0);
406 // Arguments 5 on up are on the stack
407 const uint32_t arg_byte_size = (bit_width + (8-1)) / 8;
409 if (!exe_ctx.GetProcessRef().ReadScalarIntegerFromMemory(sp, arg_byte_size, is_signed, value->GetScalar(), error))
421 ABIMacOSX_arm::GetReturnValueObjectImpl (Thread &thread,
422 lldb_private::ClangASTType &clang_type) const
425 ValueObjectSP return_valobj_sp;
428 return return_valobj_sp;
430 clang::ASTContext *ast_context = clang_type.GetASTContext();
432 return return_valobj_sp;
434 //value.SetContext (Value::eContextTypeClangType, clang_type.GetOpaqueQualType());
435 value.SetClangType (clang_type);
437 RegisterContext *reg_ctx = thread.GetRegisterContext().get();
439 return return_valobj_sp;
443 // Get the pointer to the first stack argument so we have a place to start
446 const RegisterInfo *r0_reg_info = reg_ctx->GetRegisterInfoByName("r0", 0);
447 if (clang_type.IsIntegerType (is_signed))
449 size_t bit_width = clang_type.GetBitSize();
454 return return_valobj_sp;
457 const RegisterInfo *r1_reg_info = reg_ctx->GetRegisterInfoByName("r1", 0);
459 raw_value = reg_ctx->ReadRegisterAsUnsigned(r0_reg_info, 0) & UINT32_MAX;
460 raw_value |= ((uint64_t)(reg_ctx->ReadRegisterAsUnsigned(r1_reg_info, 0) & UINT32_MAX)) << 32;
462 value.GetScalar() = (int64_t)raw_value;
464 value.GetScalar() = (uint64_t)raw_value;
469 value.GetScalar() = (int32_t)(reg_ctx->ReadRegisterAsUnsigned(r0_reg_info, 0) & UINT32_MAX);
471 value.GetScalar() = (uint32_t)(reg_ctx->ReadRegisterAsUnsigned(r0_reg_info, 0) & UINT32_MAX);
475 value.GetScalar() = (int16_t)(reg_ctx->ReadRegisterAsUnsigned(r0_reg_info, 0) & UINT16_MAX);
477 value.GetScalar() = (uint16_t)(reg_ctx->ReadRegisterAsUnsigned(r0_reg_info, 0) & UINT16_MAX);
481 value.GetScalar() = (int8_t)(reg_ctx->ReadRegisterAsUnsigned(r0_reg_info, 0) & UINT8_MAX);
483 value.GetScalar() = (uint8_t)(reg_ctx->ReadRegisterAsUnsigned(r0_reg_info, 0) & UINT8_MAX);
487 else if (clang_type.IsPointerType ())
489 uint32_t ptr = thread.GetRegisterContext()->ReadRegisterAsUnsigned(r0_reg_info, 0) & UINT32_MAX;
490 value.GetScalar() = ptr;
495 return return_valobj_sp;
498 // If we get here, we have a valid Value, so make our ValueObject out of it:
500 return_valobj_sp = ValueObjectConstResult::Create(thread.GetStackFrameAtIndex(0).get(),
503 return return_valobj_sp;
507 ABIMacOSX_arm::SetReturnValueObject(lldb::StackFrameSP &frame_sp, lldb::ValueObjectSP &new_value_sp)
512 error.SetErrorString("Empty value object for return value.");
516 ClangASTType clang_type = new_value_sp->GetClangType();
519 error.SetErrorString ("Null clang type for return value.");
523 Thread *thread = frame_sp->GetThread().get();
529 RegisterContext *reg_ctx = thread->GetRegisterContext().get();
531 bool set_it_simple = false;
532 if (clang_type.IsIntegerType (is_signed) || clang_type.IsPointerType())
535 size_t num_bytes = new_value_sp->GetData(data);
536 lldb::offset_t offset = 0;
539 const RegisterInfo *r0_info = reg_ctx->GetRegisterInfoByName("r0", 0);
542 uint32_t raw_value = data.GetMaxU32(&offset, num_bytes);
544 if (reg_ctx->WriteRegisterFromUnsigned (r0_info, raw_value))
545 set_it_simple = true;
549 uint32_t raw_value = data.GetMaxU32(&offset, 4);
551 if (reg_ctx->WriteRegisterFromUnsigned (r0_info, raw_value))
553 const RegisterInfo *r1_info = reg_ctx->GetRegisterInfoByName("r1", 0);
554 uint32_t raw_value = data.GetMaxU32(&offset, num_bytes - offset);
556 if (reg_ctx->WriteRegisterFromUnsigned (r1_info, raw_value))
557 set_it_simple = true;
563 error.SetErrorString("We don't support returning longer than 64 bit integer values at present.");
566 else if (clang_type.IsFloatingPointType (count, is_complex))
569 error.SetErrorString ("We don't support returning complex values at present");
571 error.SetErrorString ("We don't support returning float values at present");
575 error.SetErrorString ("We only support setting simple integer return types at present.");
581 ABIMacOSX_arm::CreateFunctionEntryUnwindPlan (UnwindPlan &unwind_plan)
584 unwind_plan.SetRegisterKind (eRegisterKindDWARF);
586 uint32_t lr_reg_num = dwarf_lr;
587 uint32_t sp_reg_num = dwarf_sp;
588 uint32_t pc_reg_num = dwarf_pc;
590 UnwindPlan::RowSP row(new UnwindPlan::Row);
592 // Our Call Frame Address is the stack pointer value
593 row->SetCFARegister (sp_reg_num);
595 // The previous PC is in the LR
596 row->SetRegisterLocationToRegister(pc_reg_num, lr_reg_num, true);
597 unwind_plan.AppendRow (row);
599 // All other registers are the same.
601 unwind_plan.SetSourceName ("arm at-func-entry default");
602 unwind_plan.SetSourcedFromCompiler (eLazyBoolNo);
608 ABIMacOSX_arm::CreateDefaultUnwindPlan (UnwindPlan &unwind_plan)
610 unwind_plan.Clear ();
611 unwind_plan.SetRegisterKind (eRegisterKindDWARF);
613 uint32_t fp_reg_num = dwarf_r7; // apple uses r7 for all frames. Normal arm uses r11
614 uint32_t pc_reg_num = dwarf_pc;
616 UnwindPlan::RowSP row(new UnwindPlan::Row);
617 const int32_t ptr_size = 4;
619 row->SetCFARegister (fp_reg_num);
620 row->SetCFAOffset (2 * ptr_size);
623 row->SetRegisterLocationToAtCFAPlusOffset(fp_reg_num, ptr_size * -2, true);
624 row->SetRegisterLocationToAtCFAPlusOffset(pc_reg_num, ptr_size * -1, true);
626 unwind_plan.AppendRow (row);
627 unwind_plan.SetSourceName ("arm-apple-ios default unwind plan");
628 unwind_plan.SetSourcedFromCompiler (eLazyBoolNo);
629 unwind_plan.SetUnwindPlanValidAtAllInstructions (eLazyBoolNo);
634 // cf. "ARMv6 Function Calling Conventions"
635 // https://developer.apple.com/library/ios/documentation/Xcode/Conceptual/iPhoneOSABIReference/Articles/ARMv6FunctionCallingConventions.html
636 // and "ARMv7 Function Calling Conventions"
637 // https://developer.apple.com/library/ios/documentation/Xcode/Conceptual/iPhoneOSABIReference/Articles/ARMv7FunctionCallingConventions.html
639 // ARMv7 on iOS general purpose reg rules:
640 // r0-r3 not preserved (used for argument passing)
642 // r7 preserved (frame pointer)
644 // r9 not preserved (usable as volatile scratch register with iOS 3.x and later)
647 // r13 preserved (stack pointer)
648 // r14 not preserved (link register)
649 // r15 preserved (pc)
650 // cpsr not preserved (different rules for different bits)
652 // ARMv7 on iOS floating point rules:
653 // d0-d7 not preserved (aka s0-s15, q0-q3)
654 // d8-d15 preserved (aka s16-s31, q4-q7)
655 // d16-d31 not preserved (aka q8-q15)
658 ABIMacOSX_arm::RegisterIsVolatile (const RegisterInfo *reg_info)
662 // Volatile registers are: r0, r1, r2, r3, r9, r12, r13 (aka sp)
663 const char *name = reg_info->name;
668 case '0': return name[2] == '\0'; // r0
676 return name[3] == '\0'; // r12, r13 (sp)
682 case '2': return name[2] == '\0'; // r2
683 case '3': return name[2] == '\0'; // r3
684 case '9': return name[2] == '\0'; // r9 (apple-ios only...)
689 else if (name[0] == 'd')
694 return name[2] == '\0'; // d0 is volatile
700 return true; // d1 is volatile
705 return name[3] == '\0'; // d16 - d19 are volatile
715 return true; // d2 is volatile
726 return name[3] == '\0'; // d20 - d29 are volatile
736 return true; // d3 is volatile
739 return name[3] == '\0'; // d30 - d31 are volatile
747 return name[2] == '\0'; // d4 - d7 are volatile
753 else if (name[0] == 's')
758 return name[2] == '\0'; // s0 is volatile
764 return true; // s1 is volatile
771 return name[3] == '\0'; // s10 - s15 are volatile
781 return true; // s2 is volatile
791 return true; // s3 is volatile
801 return name[2] == '\0'; // s4 - s9 are volatile
807 else if (name[0] == 's' && name[1] == 'p' && name[2] == '\0')
814 ABIMacOSX_arm::Initialize()
816 PluginManager::RegisterPlugin (GetPluginNameStatic(),
817 "Mac OS X ABI for arm targets",
822 ABIMacOSX_arm::Terminate()
824 PluginManager::UnregisterPlugin (CreateInstance);
827 lldb_private::ConstString
828 ABIMacOSX_arm::GetPluginNameStatic()
830 static ConstString g_name("macosx-arm");
834 //------------------------------------------------------------------
835 // PluginInterface protocol
836 //------------------------------------------------------------------
837 lldb_private::ConstString
838 ABIMacOSX_arm::GetPluginName()
840 return GetPluginNameStatic();
844 ABIMacOSX_arm::GetPluginVersion()