1 | //===-- RegisterContextPOSIX_x86.cpp --------------------------------------===// |
2 | // |
3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
4 | // See https://llvm.org/LICENSE.txt for license information. |
5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
6 | // |
7 | //===----------------------------------------------------------------------===// |
8 | |
9 | #include <cerrno> |
10 | #include <cstdint> |
11 | #include <cstring> |
12 | |
13 | #include "lldb/Target/Process.h" |
14 | #include "lldb/Target/Target.h" |
15 | #include "lldb/Target/Thread.h" |
16 | #include "lldb/Utility/DataBufferHeap.h" |
17 | #include "lldb/Utility/DataExtractor.h" |
18 | #include "lldb/Utility/Endian.h" |
19 | #include "lldb/Utility/RegisterValue.h" |
20 | #include "lldb/Utility/Scalar.h" |
21 | #include "llvm/Support/Compiler.h" |
22 | |
23 | #include "RegisterContextPOSIX_x86.h" |
24 | #include "RegisterContext_x86.h" |
25 | |
26 | using namespace lldb_private; |
27 | using namespace lldb; |
28 | |
29 | const uint32_t g_gpr_regnums_i386[] = { |
30 | lldb_eax_i386, lldb_ebx_i386, lldb_ecx_i386, lldb_edx_i386, |
31 | lldb_edi_i386, lldb_esi_i386, lldb_ebp_i386, lldb_esp_i386, |
32 | lldb_eip_i386, lldb_eflags_i386, lldb_cs_i386, lldb_fs_i386, |
33 | lldb_gs_i386, lldb_ss_i386, lldb_ds_i386, lldb_es_i386, |
34 | lldb_ax_i386, lldb_bx_i386, lldb_cx_i386, lldb_dx_i386, |
35 | lldb_di_i386, lldb_si_i386, lldb_bp_i386, lldb_sp_i386, |
36 | lldb_ah_i386, lldb_bh_i386, lldb_ch_i386, lldb_dh_i386, |
37 | lldb_al_i386, lldb_bl_i386, lldb_cl_i386, lldb_dl_i386, |
38 | LLDB_INVALID_REGNUM, // Register sets must be terminated with |
39 | // LLDB_INVALID_REGNUM. |
40 | }; |
41 | static_assert((sizeof(g_gpr_regnums_i386) / sizeof(g_gpr_regnums_i386[0])) - |
42 | 1 == |
43 | k_num_gpr_registers_i386, |
44 | "g_gpr_regnums_i386 has wrong number of register infos" ); |
45 | |
46 | const uint32_t g_lldb_regnums_i386[] = { |
47 | lldb_fctrl_i386, lldb_fstat_i386, lldb_ftag_i386, lldb_fop_i386, |
48 | lldb_fiseg_i386, lldb_fioff_i386, lldb_foseg_i386, lldb_fooff_i386, |
49 | lldb_mxcsr_i386, lldb_mxcsrmask_i386, lldb_st0_i386, lldb_st1_i386, |
50 | lldb_st2_i386, lldb_st3_i386, lldb_st4_i386, lldb_st5_i386, |
51 | lldb_st6_i386, lldb_st7_i386, lldb_mm0_i386, lldb_mm1_i386, |
52 | lldb_mm2_i386, lldb_mm3_i386, lldb_mm4_i386, lldb_mm5_i386, |
53 | lldb_mm6_i386, lldb_mm7_i386, lldb_xmm0_i386, lldb_xmm1_i386, |
54 | lldb_xmm2_i386, lldb_xmm3_i386, lldb_xmm4_i386, lldb_xmm5_i386, |
55 | lldb_xmm6_i386, lldb_xmm7_i386, |
56 | LLDB_INVALID_REGNUM // Register sets must be terminated with |
57 | // LLDB_INVALID_REGNUM. |
58 | }; |
59 | static_assert((sizeof(g_lldb_regnums_i386) / sizeof(g_lldb_regnums_i386[0])) - |
60 | 1 == |
61 | k_num_fpr_registers_i386, |
62 | "g_lldb_regnums_i386 has wrong number of register infos" ); |
63 | |
64 | const uint32_t g_avx_regnums_i386[] = { |
65 | lldb_ymm0_i386, lldb_ymm1_i386, lldb_ymm2_i386, lldb_ymm3_i386, |
66 | lldb_ymm4_i386, lldb_ymm5_i386, lldb_ymm6_i386, lldb_ymm7_i386, |
67 | LLDB_INVALID_REGNUM // Register sets must be terminated with |
68 | // LLDB_INVALID_REGNUM. |
69 | }; |
70 | static_assert((sizeof(g_avx_regnums_i386) / sizeof(g_avx_regnums_i386[0])) - |
71 | 1 == |
72 | k_num_avx_registers_i386, |
73 | " g_avx_regnums_i386 has wrong number of register infos" ); |
74 | |
75 | static const uint32_t g_gpr_regnums_x86_64[] = { |
76 | lldb_rax_x86_64, lldb_rbx_x86_64, lldb_rcx_x86_64, lldb_rdx_x86_64, |
77 | lldb_rdi_x86_64, lldb_rsi_x86_64, lldb_rbp_x86_64, lldb_rsp_x86_64, |
78 | lldb_r8_x86_64, lldb_r9_x86_64, lldb_r10_x86_64, lldb_r11_x86_64, |
79 | lldb_r12_x86_64, lldb_r13_x86_64, lldb_r14_x86_64, lldb_r15_x86_64, |
80 | lldb_rip_x86_64, lldb_rflags_x86_64, lldb_cs_x86_64, lldb_fs_x86_64, |
81 | lldb_gs_x86_64, lldb_ss_x86_64, lldb_ds_x86_64, lldb_es_x86_64, |
82 | lldb_eax_x86_64, lldb_ebx_x86_64, lldb_ecx_x86_64, lldb_edx_x86_64, |
83 | lldb_edi_x86_64, lldb_esi_x86_64, lldb_ebp_x86_64, lldb_esp_x86_64, |
84 | lldb_r8d_x86_64, // Low 32 bits or r8 |
85 | lldb_r9d_x86_64, // Low 32 bits or r9 |
86 | lldb_r10d_x86_64, // Low 32 bits or r10 |
87 | lldb_r11d_x86_64, // Low 32 bits or r11 |
88 | lldb_r12d_x86_64, // Low 32 bits or r12 |
89 | lldb_r13d_x86_64, // Low 32 bits or r13 |
90 | lldb_r14d_x86_64, // Low 32 bits or r14 |
91 | lldb_r15d_x86_64, // Low 32 bits or r15 |
92 | lldb_ax_x86_64, lldb_bx_x86_64, lldb_cx_x86_64, lldb_dx_x86_64, |
93 | lldb_di_x86_64, lldb_si_x86_64, lldb_bp_x86_64, lldb_sp_x86_64, |
94 | lldb_r8w_x86_64, // Low 16 bits or r8 |
95 | lldb_r9w_x86_64, // Low 16 bits or r9 |
96 | lldb_r10w_x86_64, // Low 16 bits or r10 |
97 | lldb_r11w_x86_64, // Low 16 bits or r11 |
98 | lldb_r12w_x86_64, // Low 16 bits or r12 |
99 | lldb_r13w_x86_64, // Low 16 bits or r13 |
100 | lldb_r14w_x86_64, // Low 16 bits or r14 |
101 | lldb_r15w_x86_64, // Low 16 bits or r15 |
102 | lldb_ah_x86_64, lldb_bh_x86_64, lldb_ch_x86_64, lldb_dh_x86_64, |
103 | lldb_al_x86_64, lldb_bl_x86_64, lldb_cl_x86_64, lldb_dl_x86_64, |
104 | lldb_dil_x86_64, lldb_sil_x86_64, lldb_bpl_x86_64, lldb_spl_x86_64, |
105 | lldb_r8l_x86_64, // Low 8 bits or r8 |
106 | lldb_r9l_x86_64, // Low 8 bits or r9 |
107 | lldb_r10l_x86_64, // Low 8 bits or r10 |
108 | lldb_r11l_x86_64, // Low 8 bits or r11 |
109 | lldb_r12l_x86_64, // Low 8 bits or r12 |
110 | lldb_r13l_x86_64, // Low 8 bits or r13 |
111 | lldb_r14l_x86_64, // Low 8 bits or r14 |
112 | lldb_r15l_x86_64, // Low 8 bits or r15 |
113 | LLDB_INVALID_REGNUM // Register sets must be terminated with |
114 | // LLDB_INVALID_REGNUM. |
115 | }; |
116 | static_assert((sizeof(g_gpr_regnums_x86_64) / sizeof(g_gpr_regnums_x86_64[0])) - |
117 | 1 == |
118 | k_num_gpr_registers_x86_64, |
119 | "g_gpr_regnums_x86_64 has wrong number of register infos" ); |
120 | |
121 | static const uint32_t g_lldb_regnums_x86_64[] = { |
122 | lldb_fctrl_x86_64, lldb_fstat_x86_64, lldb_ftag_x86_64, |
123 | lldb_fop_x86_64, lldb_fiseg_x86_64, lldb_fioff_x86_64, |
124 | lldb_fip_x86_64, lldb_foseg_x86_64, lldb_fooff_x86_64, |
125 | lldb_fdp_x86_64, lldb_mxcsr_x86_64, lldb_mxcsrmask_x86_64, |
126 | lldb_st0_x86_64, lldb_st1_x86_64, lldb_st2_x86_64, |
127 | lldb_st3_x86_64, lldb_st4_x86_64, lldb_st5_x86_64, |
128 | lldb_st6_x86_64, lldb_st7_x86_64, lldb_mm0_x86_64, |
129 | lldb_mm1_x86_64, lldb_mm2_x86_64, lldb_mm3_x86_64, |
130 | lldb_mm4_x86_64, lldb_mm5_x86_64, lldb_mm6_x86_64, |
131 | lldb_mm7_x86_64, lldb_xmm0_x86_64, lldb_xmm1_x86_64, |
132 | lldb_xmm2_x86_64, lldb_xmm3_x86_64, lldb_xmm4_x86_64, |
133 | lldb_xmm5_x86_64, lldb_xmm6_x86_64, lldb_xmm7_x86_64, |
134 | lldb_xmm8_x86_64, lldb_xmm9_x86_64, lldb_xmm10_x86_64, |
135 | lldb_xmm11_x86_64, lldb_xmm12_x86_64, lldb_xmm13_x86_64, |
136 | lldb_xmm14_x86_64, lldb_xmm15_x86_64, |
137 | LLDB_INVALID_REGNUM // Register sets must be terminated with |
138 | // LLDB_INVALID_REGNUM. |
139 | }; |
140 | static_assert((sizeof(g_lldb_regnums_x86_64) / |
141 | sizeof(g_lldb_regnums_x86_64[0])) - |
142 | 1 == |
143 | k_num_fpr_registers_x86_64, |
144 | "g_lldb_regnums_x86_64 has wrong number of register infos" ); |
145 | |
146 | static const uint32_t g_avx_regnums_x86_64[] = { |
147 | lldb_ymm0_x86_64, lldb_ymm1_x86_64, lldb_ymm2_x86_64, lldb_ymm3_x86_64, |
148 | lldb_ymm4_x86_64, lldb_ymm5_x86_64, lldb_ymm6_x86_64, lldb_ymm7_x86_64, |
149 | lldb_ymm8_x86_64, lldb_ymm9_x86_64, lldb_ymm10_x86_64, lldb_ymm11_x86_64, |
150 | lldb_ymm12_x86_64, lldb_ymm13_x86_64, lldb_ymm14_x86_64, lldb_ymm15_x86_64, |
151 | LLDB_INVALID_REGNUM // Register sets must be terminated with |
152 | // LLDB_INVALID_REGNUM. |
153 | }; |
154 | static_assert((sizeof(g_avx_regnums_x86_64) / sizeof(g_avx_regnums_x86_64[0])) - |
155 | 1 == |
156 | k_num_avx_registers_x86_64, |
157 | "g_avx_regnums_x86_64 has wrong number of register infos" ); |
158 | |
159 | uint32_t RegisterContextPOSIX_x86::g_contained_eax[] = {lldb_eax_i386, |
160 | LLDB_INVALID_REGNUM}; |
161 | uint32_t RegisterContextPOSIX_x86::g_contained_ebx[] = {lldb_ebx_i386, |
162 | LLDB_INVALID_REGNUM}; |
163 | uint32_t RegisterContextPOSIX_x86::g_contained_ecx[] = {lldb_ecx_i386, |
164 | LLDB_INVALID_REGNUM}; |
165 | uint32_t RegisterContextPOSIX_x86::g_contained_edx[] = {lldb_edx_i386, |
166 | LLDB_INVALID_REGNUM}; |
167 | uint32_t RegisterContextPOSIX_x86::g_contained_edi[] = {lldb_edi_i386, |
168 | LLDB_INVALID_REGNUM}; |
169 | uint32_t RegisterContextPOSIX_x86::g_contained_esi[] = {lldb_esi_i386, |
170 | LLDB_INVALID_REGNUM}; |
171 | uint32_t RegisterContextPOSIX_x86::g_contained_ebp[] = {lldb_ebp_i386, |
172 | LLDB_INVALID_REGNUM}; |
173 | uint32_t RegisterContextPOSIX_x86::g_contained_esp[] = {lldb_esp_i386, |
174 | LLDB_INVALID_REGNUM}; |
175 | |
176 | uint32_t RegisterContextPOSIX_x86::g_invalidate_eax[] = { |
177 | lldb_eax_i386, lldb_ax_i386, lldb_ah_i386, lldb_al_i386, |
178 | LLDB_INVALID_REGNUM}; |
179 | uint32_t RegisterContextPOSIX_x86::g_invalidate_ebx[] = { |
180 | lldb_ebx_i386, lldb_bx_i386, lldb_bh_i386, lldb_bl_i386, |
181 | LLDB_INVALID_REGNUM}; |
182 | uint32_t RegisterContextPOSIX_x86::g_invalidate_ecx[] = { |
183 | lldb_ecx_i386, lldb_cx_i386, lldb_ch_i386, lldb_cl_i386, |
184 | LLDB_INVALID_REGNUM}; |
185 | uint32_t RegisterContextPOSIX_x86::g_invalidate_edx[] = { |
186 | lldb_edx_i386, lldb_dx_i386, lldb_dh_i386, lldb_dl_i386, |
187 | LLDB_INVALID_REGNUM}; |
188 | uint32_t RegisterContextPOSIX_x86::g_invalidate_edi[] = { |
189 | lldb_edi_i386, lldb_di_i386, LLDB_INVALID_REGNUM}; |
190 | uint32_t RegisterContextPOSIX_x86::g_invalidate_esi[] = { |
191 | lldb_esi_i386, lldb_si_i386, LLDB_INVALID_REGNUM}; |
192 | uint32_t RegisterContextPOSIX_x86::g_invalidate_ebp[] = { |
193 | lldb_ebp_i386, lldb_bp_i386, LLDB_INVALID_REGNUM}; |
194 | uint32_t RegisterContextPOSIX_x86::g_invalidate_esp[] = { |
195 | lldb_esp_i386, lldb_sp_i386, LLDB_INVALID_REGNUM}; |
196 | |
197 | uint32_t RegisterContextPOSIX_x86::g_contained_rax[] = {lldb_rax_x86_64, |
198 | LLDB_INVALID_REGNUM}; |
199 | uint32_t RegisterContextPOSIX_x86::g_contained_rbx[] = {lldb_rbx_x86_64, |
200 | LLDB_INVALID_REGNUM}; |
201 | uint32_t RegisterContextPOSIX_x86::g_contained_rcx[] = {lldb_rcx_x86_64, |
202 | LLDB_INVALID_REGNUM}; |
203 | uint32_t RegisterContextPOSIX_x86::g_contained_rdx[] = {lldb_rdx_x86_64, |
204 | LLDB_INVALID_REGNUM}; |
205 | uint32_t RegisterContextPOSIX_x86::g_contained_rdi[] = {lldb_rdi_x86_64, |
206 | LLDB_INVALID_REGNUM}; |
207 | uint32_t RegisterContextPOSIX_x86::g_contained_rsi[] = {lldb_rsi_x86_64, |
208 | LLDB_INVALID_REGNUM}; |
209 | uint32_t RegisterContextPOSIX_x86::g_contained_rbp[] = {lldb_rbp_x86_64, |
210 | LLDB_INVALID_REGNUM}; |
211 | uint32_t RegisterContextPOSIX_x86::g_contained_rsp[] = {lldb_rsp_x86_64, |
212 | LLDB_INVALID_REGNUM}; |
213 | uint32_t RegisterContextPOSIX_x86::g_contained_r8[] = {lldb_r8_x86_64, |
214 | LLDB_INVALID_REGNUM}; |
215 | uint32_t RegisterContextPOSIX_x86::g_contained_r9[] = {lldb_r9_x86_64, |
216 | LLDB_INVALID_REGNUM}; |
217 | uint32_t RegisterContextPOSIX_x86::g_contained_r10[] = {lldb_r10_x86_64, |
218 | LLDB_INVALID_REGNUM}; |
219 | uint32_t RegisterContextPOSIX_x86::g_contained_r11[] = {lldb_r11_x86_64, |
220 | LLDB_INVALID_REGNUM}; |
221 | uint32_t RegisterContextPOSIX_x86::g_contained_r12[] = {lldb_r12_x86_64, |
222 | LLDB_INVALID_REGNUM}; |
223 | uint32_t RegisterContextPOSIX_x86::g_contained_r13[] = {lldb_r13_x86_64, |
224 | LLDB_INVALID_REGNUM}; |
225 | uint32_t RegisterContextPOSIX_x86::g_contained_r14[] = {lldb_r14_x86_64, |
226 | LLDB_INVALID_REGNUM}; |
227 | uint32_t RegisterContextPOSIX_x86::g_contained_r15[] = {lldb_r15_x86_64, |
228 | LLDB_INVALID_REGNUM}; |
229 | |
230 | uint32_t RegisterContextPOSIX_x86::g_invalidate_rax[] = { |
231 | lldb_rax_x86_64, lldb_eax_x86_64, lldb_ax_x86_64, |
232 | lldb_ah_x86_64, lldb_al_x86_64, LLDB_INVALID_REGNUM}; |
233 | uint32_t RegisterContextPOSIX_x86::g_invalidate_rbx[] = { |
234 | lldb_rbx_x86_64, lldb_ebx_x86_64, lldb_bx_x86_64, |
235 | lldb_bh_x86_64, lldb_bl_x86_64, LLDB_INVALID_REGNUM}; |
236 | uint32_t RegisterContextPOSIX_x86::g_invalidate_rcx[] = { |
237 | lldb_rcx_x86_64, lldb_ecx_x86_64, lldb_cx_x86_64, |
238 | lldb_ch_x86_64, lldb_cl_x86_64, LLDB_INVALID_REGNUM}; |
239 | uint32_t RegisterContextPOSIX_x86::g_invalidate_rdx[] = { |
240 | lldb_rdx_x86_64, lldb_edx_x86_64, lldb_dx_x86_64, |
241 | lldb_dh_x86_64, lldb_dl_x86_64, LLDB_INVALID_REGNUM}; |
242 | uint32_t RegisterContextPOSIX_x86::g_invalidate_rdi[] = { |
243 | lldb_rdi_x86_64, lldb_edi_x86_64, lldb_di_x86_64, lldb_dil_x86_64, |
244 | LLDB_INVALID_REGNUM}; |
245 | uint32_t RegisterContextPOSIX_x86::g_invalidate_rsi[] = { |
246 | lldb_rsi_x86_64, lldb_esi_x86_64, lldb_si_x86_64, lldb_sil_x86_64, |
247 | LLDB_INVALID_REGNUM}; |
248 | uint32_t RegisterContextPOSIX_x86::g_invalidate_rbp[] = { |
249 | lldb_rbp_x86_64, lldb_ebp_x86_64, lldb_bp_x86_64, lldb_bpl_x86_64, |
250 | LLDB_INVALID_REGNUM}; |
251 | uint32_t RegisterContextPOSIX_x86::g_invalidate_rsp[] = { |
252 | lldb_rsp_x86_64, lldb_esp_x86_64, lldb_sp_x86_64, lldb_spl_x86_64, |
253 | LLDB_INVALID_REGNUM}; |
254 | uint32_t RegisterContextPOSIX_x86::g_invalidate_r8[] = { |
255 | lldb_r8_x86_64, lldb_r8d_x86_64, lldb_r8w_x86_64, lldb_r8l_x86_64, |
256 | LLDB_INVALID_REGNUM}; |
257 | uint32_t RegisterContextPOSIX_x86::g_invalidate_r9[] = { |
258 | lldb_r9_x86_64, lldb_r9d_x86_64, lldb_r9w_x86_64, lldb_r9l_x86_64, |
259 | LLDB_INVALID_REGNUM}; |
260 | uint32_t RegisterContextPOSIX_x86::g_invalidate_r10[] = { |
261 | lldb_r10_x86_64, lldb_r10d_x86_64, lldb_r10w_x86_64, lldb_r10l_x86_64, |
262 | LLDB_INVALID_REGNUM}; |
263 | uint32_t RegisterContextPOSIX_x86::g_invalidate_r11[] = { |
264 | lldb_r11_x86_64, lldb_r11d_x86_64, lldb_r11w_x86_64, lldb_r11l_x86_64, |
265 | LLDB_INVALID_REGNUM}; |
266 | uint32_t RegisterContextPOSIX_x86::g_invalidate_r12[] = { |
267 | lldb_r12_x86_64, lldb_r12d_x86_64, lldb_r12w_x86_64, lldb_r12l_x86_64, |
268 | LLDB_INVALID_REGNUM}; |
269 | uint32_t RegisterContextPOSIX_x86::g_invalidate_r13[] = { |
270 | lldb_r13_x86_64, lldb_r13d_x86_64, lldb_r13w_x86_64, lldb_r13l_x86_64, |
271 | LLDB_INVALID_REGNUM}; |
272 | uint32_t RegisterContextPOSIX_x86::g_invalidate_r14[] = { |
273 | lldb_r14_x86_64, lldb_r14d_x86_64, lldb_r14w_x86_64, lldb_r14l_x86_64, |
274 | LLDB_INVALID_REGNUM}; |
275 | uint32_t RegisterContextPOSIX_x86::g_invalidate_r15[] = { |
276 | lldb_r15_x86_64, lldb_r15d_x86_64, lldb_r15w_x86_64, lldb_r15l_x86_64, |
277 | LLDB_INVALID_REGNUM}; |
278 | |
279 | uint32_t RegisterContextPOSIX_x86::g_contained_fip[] = {lldb_fip_x86_64, |
280 | LLDB_INVALID_REGNUM}; |
281 | uint32_t RegisterContextPOSIX_x86::g_contained_fdp[] = {lldb_fdp_x86_64, |
282 | LLDB_INVALID_REGNUM}; |
283 | |
284 | uint32_t RegisterContextPOSIX_x86::g_invalidate_fip[] = { |
285 | lldb_fip_x86_64, lldb_fioff_x86_64, lldb_fiseg_x86_64, LLDB_INVALID_REGNUM}; |
286 | uint32_t RegisterContextPOSIX_x86::g_invalidate_fdp[] = { |
287 | lldb_fdp_x86_64, lldb_fooff_x86_64, lldb_foseg_x86_64, LLDB_INVALID_REGNUM}; |
288 | |
289 | uint32_t RegisterContextPOSIX_x86::g_contained_st0_32[] = {lldb_st0_i386, |
290 | LLDB_INVALID_REGNUM}; |
291 | uint32_t RegisterContextPOSIX_x86::g_contained_st1_32[] = {lldb_st1_i386, |
292 | LLDB_INVALID_REGNUM}; |
293 | uint32_t RegisterContextPOSIX_x86::g_contained_st2_32[] = {lldb_st2_i386, |
294 | LLDB_INVALID_REGNUM}; |
295 | uint32_t RegisterContextPOSIX_x86::g_contained_st3_32[] = {lldb_st3_i386, |
296 | LLDB_INVALID_REGNUM}; |
297 | uint32_t RegisterContextPOSIX_x86::g_contained_st4_32[] = {lldb_st4_i386, |
298 | LLDB_INVALID_REGNUM}; |
299 | uint32_t RegisterContextPOSIX_x86::g_contained_st5_32[] = {lldb_st5_i386, |
300 | LLDB_INVALID_REGNUM}; |
301 | uint32_t RegisterContextPOSIX_x86::g_contained_st6_32[] = {lldb_st6_i386, |
302 | LLDB_INVALID_REGNUM}; |
303 | uint32_t RegisterContextPOSIX_x86::g_contained_st7_32[] = {lldb_st7_i386, |
304 | LLDB_INVALID_REGNUM}; |
305 | |
306 | uint32_t RegisterContextPOSIX_x86::g_invalidate_st0_32[] = { |
307 | lldb_st0_i386, lldb_mm0_i386, LLDB_INVALID_REGNUM}; |
308 | uint32_t RegisterContextPOSIX_x86::g_invalidate_st1_32[] = { |
309 | lldb_st1_i386, lldb_mm1_i386, LLDB_INVALID_REGNUM}; |
310 | uint32_t RegisterContextPOSIX_x86::g_invalidate_st2_32[] = { |
311 | lldb_st2_i386, lldb_mm2_i386, LLDB_INVALID_REGNUM}; |
312 | uint32_t RegisterContextPOSIX_x86::g_invalidate_st3_32[] = { |
313 | lldb_st3_i386, lldb_mm3_i386, LLDB_INVALID_REGNUM}; |
314 | uint32_t RegisterContextPOSIX_x86::g_invalidate_st4_32[] = { |
315 | lldb_st4_i386, lldb_mm4_i386, LLDB_INVALID_REGNUM}; |
316 | uint32_t RegisterContextPOSIX_x86::g_invalidate_st5_32[] = { |
317 | lldb_st5_i386, lldb_mm5_i386, LLDB_INVALID_REGNUM}; |
318 | uint32_t RegisterContextPOSIX_x86::g_invalidate_st6_32[] = { |
319 | lldb_st6_i386, lldb_mm6_i386, LLDB_INVALID_REGNUM}; |
320 | uint32_t RegisterContextPOSIX_x86::g_invalidate_st7_32[] = { |
321 | lldb_st7_i386, lldb_mm7_i386, LLDB_INVALID_REGNUM}; |
322 | |
323 | uint32_t RegisterContextPOSIX_x86::g_contained_st0_64[] = {lldb_st0_x86_64, |
324 | LLDB_INVALID_REGNUM}; |
325 | uint32_t RegisterContextPOSIX_x86::g_contained_st1_64[] = {lldb_st1_x86_64, |
326 | LLDB_INVALID_REGNUM}; |
327 | uint32_t RegisterContextPOSIX_x86::g_contained_st2_64[] = {lldb_st2_x86_64, |
328 | LLDB_INVALID_REGNUM}; |
329 | uint32_t RegisterContextPOSIX_x86::g_contained_st3_64[] = {lldb_st3_x86_64, |
330 | LLDB_INVALID_REGNUM}; |
331 | uint32_t RegisterContextPOSIX_x86::g_contained_st4_64[] = {lldb_st4_x86_64, |
332 | LLDB_INVALID_REGNUM}; |
333 | uint32_t RegisterContextPOSIX_x86::g_contained_st5_64[] = {lldb_st5_x86_64, |
334 | LLDB_INVALID_REGNUM}; |
335 | uint32_t RegisterContextPOSIX_x86::g_contained_st6_64[] = {lldb_st6_x86_64, |
336 | LLDB_INVALID_REGNUM}; |
337 | uint32_t RegisterContextPOSIX_x86::g_contained_st7_64[] = {lldb_st7_x86_64, |
338 | LLDB_INVALID_REGNUM}; |
339 | |
340 | uint32_t RegisterContextPOSIX_x86::g_invalidate_st0_64[] = { |
341 | lldb_st0_x86_64, lldb_mm0_x86_64, LLDB_INVALID_REGNUM}; |
342 | uint32_t RegisterContextPOSIX_x86::g_invalidate_st1_64[] = { |
343 | lldb_st1_x86_64, lldb_mm1_x86_64, LLDB_INVALID_REGNUM}; |
344 | uint32_t RegisterContextPOSIX_x86::g_invalidate_st2_64[] = { |
345 | lldb_st2_x86_64, lldb_mm2_x86_64, LLDB_INVALID_REGNUM}; |
346 | uint32_t RegisterContextPOSIX_x86::g_invalidate_st3_64[] = { |
347 | lldb_st3_x86_64, lldb_mm3_x86_64, LLDB_INVALID_REGNUM}; |
348 | uint32_t RegisterContextPOSIX_x86::g_invalidate_st4_64[] = { |
349 | lldb_st4_x86_64, lldb_mm4_x86_64, LLDB_INVALID_REGNUM}; |
350 | uint32_t RegisterContextPOSIX_x86::g_invalidate_st5_64[] = { |
351 | lldb_st5_x86_64, lldb_mm5_x86_64, LLDB_INVALID_REGNUM}; |
352 | uint32_t RegisterContextPOSIX_x86::g_invalidate_st6_64[] = { |
353 | lldb_st6_x86_64, lldb_mm6_x86_64, LLDB_INVALID_REGNUM}; |
354 | uint32_t RegisterContextPOSIX_x86::g_invalidate_st7_64[] = { |
355 | lldb_st7_x86_64, lldb_mm7_x86_64, LLDB_INVALID_REGNUM}; |
356 | |
357 | // Number of register sets provided by this context. |
358 | enum { k_num_extended_register_sets = 1, k_num_register_sets = 3 }; |
359 | |
360 | static const RegisterSet g_reg_sets_i386[k_num_register_sets] = { |
361 | {.name: "General Purpose Registers" , .short_name: "gpr" , .num_registers: k_num_gpr_registers_i386, |
362 | .registers: g_gpr_regnums_i386}, |
363 | {.name: "Floating Point Registers" , .short_name: "fpu" , .num_registers: k_num_fpr_registers_i386, |
364 | .registers: g_lldb_regnums_i386}, |
365 | {.name: "Advanced Vector Extensions" , .short_name: "avx" , .num_registers: k_num_avx_registers_i386, |
366 | .registers: g_avx_regnums_i386}}; |
367 | |
368 | static const RegisterSet g_reg_sets_x86_64[k_num_register_sets] = { |
369 | {.name: "General Purpose Registers" , .short_name: "gpr" , .num_registers: k_num_gpr_registers_x86_64, |
370 | .registers: g_gpr_regnums_x86_64}, |
371 | {.name: "Floating Point Registers" , .short_name: "fpu" , .num_registers: k_num_fpr_registers_x86_64, |
372 | .registers: g_lldb_regnums_x86_64}, |
373 | {.name: "Advanced Vector Extensions" , .short_name: "avx" , .num_registers: k_num_avx_registers_x86_64, |
374 | .registers: g_avx_regnums_x86_64}}; |
375 | |
376 | bool RegisterContextPOSIX_x86::IsGPR(unsigned reg) { |
377 | return reg <= GetRegInfo().last_gpr; // GPR's come first. |
378 | } |
379 | |
380 | bool RegisterContextPOSIX_x86::IsFPR(unsigned reg) { |
381 | return (GetRegInfo().first_fpr <= reg && reg <= GetRegInfo().last_fpr); |
382 | } |
383 | |
384 | bool RegisterContextPOSIX_x86::IsAVX(unsigned reg) { |
385 | return (GetRegInfo().first_ymm <= reg && reg <= GetRegInfo().last_ymm); |
386 | } |
387 | |
388 | bool RegisterContextPOSIX_x86::IsFPR(unsigned reg, FPRType fpr_type) { |
389 | bool generic_fpr = IsFPR(reg); |
390 | |
391 | if (fpr_type == eXSAVE) |
392 | return generic_fpr || IsAVX(reg); |
393 | return generic_fpr; |
394 | } |
395 | |
396 | RegisterContextPOSIX_x86::RegisterContextPOSIX_x86( |
397 | Thread &thread, uint32_t concrete_frame_idx, |
398 | RegisterInfoInterface *register_info) |
399 | : RegisterContext(thread, concrete_frame_idx) { |
400 | m_register_info_up.reset(p: register_info); |
401 | |
402 | ::memset(s: &m_fpr, c: 0, n: sizeof(FPR)); |
403 | ::memset(s: &m_ymm_set, c: 0, n: sizeof(YMM)); |
404 | |
405 | m_fpr_type = eNotValid; |
406 | } |
407 | |
408 | RegisterContextPOSIX_x86::~RegisterContextPOSIX_x86() = default; |
409 | |
410 | RegisterContextPOSIX_x86::FPRType RegisterContextPOSIX_x86::GetFPRType() { |
411 | if (m_fpr_type == eNotValid) { |
412 | // TODO: Use assembly to call cpuid on the inferior and query ebx or ecx |
413 | m_fpr_type = eXSAVE; // extended floating-point registers, if available |
414 | if (!ReadFPR()) |
415 | m_fpr_type = eFXSAVE; // assume generic floating-point registers |
416 | } |
417 | return m_fpr_type; |
418 | } |
419 | |
420 | void RegisterContextPOSIX_x86::Invalidate() {} |
421 | |
422 | void RegisterContextPOSIX_x86::InvalidateAllRegisters() {} |
423 | |
424 | unsigned RegisterContextPOSIX_x86::GetRegisterOffset(unsigned reg) { |
425 | assert(reg < GetRegInfo().num_registers && "Invalid register number." ); |
426 | return GetRegisterInfo()[reg].byte_offset; |
427 | } |
428 | |
429 | RegInfo &RegisterContextPOSIX_x86::GetRegInfo() { |
430 | return GetRegInfoShared( |
431 | arch_type: m_register_info_up->GetTargetArchitecture().GetMachine(), |
432 | /*with_base=*/false); |
433 | } |
434 | |
435 | unsigned RegisterContextPOSIX_x86::GetRegisterSize(unsigned reg) { |
436 | assert(reg < GetRegInfo().num_registers && "Invalid register number." ); |
437 | return GetRegisterInfo()[reg].byte_size; |
438 | } |
439 | |
440 | size_t RegisterContextPOSIX_x86::GetRegisterCount() { |
441 | size_t num_registers = |
442 | GetRegInfo().num_gpr_registers + GetRegInfo().num_fpr_registers; |
443 | if (GetFPRType() == eXSAVE) |
444 | return num_registers + GetRegInfo().num_avx_registers; |
445 | return num_registers; |
446 | } |
447 | |
448 | size_t RegisterContextPOSIX_x86::GetGPRSize() { |
449 | return m_register_info_up->GetGPRSize(); |
450 | } |
451 | |
452 | size_t RegisterContextPOSIX_x86::GetFXSAVEOffset() { |
453 | return GetRegisterInfo()[GetRegInfo().first_fpr].byte_offset; |
454 | } |
455 | |
456 | const RegisterInfo *RegisterContextPOSIX_x86::GetRegisterInfo() { |
457 | // Commonly, this method is overridden and g_register_infos is copied and |
458 | // specialized. So, use GetRegisterInfo() rather than g_register_infos in |
459 | // this scope. |
460 | return m_register_info_up->GetRegisterInfo(); |
461 | } |
462 | |
463 | const RegisterInfo * |
464 | RegisterContextPOSIX_x86::GetRegisterInfoAtIndex(size_t reg) { |
465 | if (reg < GetRegInfo().num_registers) |
466 | return &GetRegisterInfo()[reg]; |
467 | else |
468 | return nullptr; |
469 | } |
470 | |
471 | size_t RegisterContextPOSIX_x86::GetRegisterSetCount() { |
472 | size_t sets = 0; |
473 | for (size_t set = 0; set < k_num_register_sets; ++set) { |
474 | if (IsRegisterSetAvailable(set_index: set)) |
475 | ++sets; |
476 | } |
477 | |
478 | return sets; |
479 | } |
480 | |
481 | const RegisterSet *RegisterContextPOSIX_x86::GetRegisterSet(size_t set) { |
482 | if (IsRegisterSetAvailable(set_index: set)) { |
483 | switch (m_register_info_up->GetTargetArchitecture().GetMachine()) { |
484 | case llvm::Triple::x86: |
485 | return &g_reg_sets_i386[set]; |
486 | case llvm::Triple::x86_64: |
487 | return &g_reg_sets_x86_64[set]; |
488 | default: |
489 | assert(false && "Unhandled target architecture." ); |
490 | return nullptr; |
491 | } |
492 | } |
493 | return nullptr; |
494 | } |
495 | |
496 | const char *RegisterContextPOSIX_x86::GetRegisterName(unsigned reg) { |
497 | assert(reg < GetRegInfo().num_registers && "Invalid register offset." ); |
498 | return GetRegisterInfo()[reg].name; |
499 | } |
500 | |
501 | // Parse ymm registers and into xmm.bytes and ymmh.bytes. |
502 | bool RegisterContextPOSIX_x86::CopyYMMtoXSTATE(uint32_t reg, |
503 | lldb::ByteOrder byte_order) { |
504 | if (!IsAVX(reg)) |
505 | return false; |
506 | |
507 | if (byte_order == eByteOrderLittle) { |
508 | uint32_t reg_no = reg - GetRegInfo().first_ymm; |
509 | YMMToXState(input: m_ymm_set.ymm[reg_no], xmm_bytes: m_fpr.fxsave.xmm[reg_no].bytes, |
510 | ymmh_bytes: m_fpr.xsave.ymmh[reg_no].bytes); |
511 | return true; |
512 | } |
513 | |
514 | return false; // unsupported or invalid byte order |
515 | } |
516 | |
517 | // Concatenate xmm.bytes with ymmh.bytes |
518 | bool RegisterContextPOSIX_x86::CopyXSTATEtoYMM(uint32_t reg, |
519 | lldb::ByteOrder byte_order) { |
520 | if (!IsAVX(reg)) |
521 | return false; |
522 | |
523 | if (byte_order == eByteOrderLittle) { |
524 | uint32_t reg_no = reg - GetRegInfo().first_ymm; |
525 | m_ymm_set.ymm[reg_no] = XStateToYMM(xmm_bytes: m_fpr.fxsave.xmm[reg_no].bytes, |
526 | ymmh_bytes: m_fpr.xsave.ymmh[reg_no].bytes); |
527 | return true; |
528 | } |
529 | |
530 | return false; // unsupported or invalid byte order |
531 | } |
532 | |
533 | bool RegisterContextPOSIX_x86::IsRegisterSetAvailable(size_t set_index) { |
534 | // Note: Extended register sets are assumed to be at the end of g_reg_sets... |
535 | size_t num_sets = k_num_register_sets - k_num_extended_register_sets; |
536 | |
537 | if (GetFPRType() == eXSAVE) // ...and to start with AVX registers. |
538 | ++num_sets; |
539 | return (set_index < num_sets); |
540 | } |
541 | |