1 //===-- RegisterContextPOSIX_x86.cpp ----------------------------*- C++ -*-===//
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
7 //===----------------------------------------------------------------------===//
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"
23 #include "RegisterContextPOSIX_x86.h"
24 #include "RegisterContext_x86.h"
26 using namespace lldb_private;
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.
41 static_assert((sizeof(g_gpr_regnums_i386) / sizeof(g_gpr_regnums_i386[0])) -
43 k_num_gpr_registers_i386,
44 "g_gpr_regnums_i386 has wrong number of register infos");
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.
59 static_assert((sizeof(g_lldb_regnums_i386) / sizeof(g_lldb_regnums_i386[0])) -
61 k_num_fpr_registers_i386,
62 "g_lldb_regnums_i386 has wrong number of register infos");
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.
70 static_assert((sizeof(g_avx_regnums_i386) / sizeof(g_avx_regnums_i386[0])) -
72 k_num_avx_registers_i386,
73 " g_avx_regnums_i386 has wrong number of register infos");
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.
116 static_assert((sizeof(g_gpr_regnums_x86_64) / sizeof(g_gpr_regnums_x86_64[0])) -
118 k_num_gpr_registers_x86_64,
119 "g_gpr_regnums_x86_64 has wrong number of register infos");
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_foseg_x86_64, lldb_fooff_x86_64, lldb_mxcsr_x86_64,
125 lldb_mxcsrmask_x86_64, lldb_st0_x86_64, lldb_st1_x86_64,
126 lldb_st2_x86_64, lldb_st3_x86_64, lldb_st4_x86_64,
127 lldb_st5_x86_64, lldb_st6_x86_64, lldb_st7_x86_64,
128 lldb_mm0_x86_64, lldb_mm1_x86_64, lldb_mm2_x86_64,
129 lldb_mm3_x86_64, lldb_mm4_x86_64, lldb_mm5_x86_64,
130 lldb_mm6_x86_64, lldb_mm7_x86_64, lldb_xmm0_x86_64,
131 lldb_xmm1_x86_64, lldb_xmm2_x86_64, lldb_xmm3_x86_64,
132 lldb_xmm4_x86_64, lldb_xmm5_x86_64, lldb_xmm6_x86_64,
133 lldb_xmm7_x86_64, lldb_xmm8_x86_64, lldb_xmm9_x86_64,
134 lldb_xmm10_x86_64, lldb_xmm11_x86_64, lldb_xmm12_x86_64,
135 lldb_xmm13_x86_64, lldb_xmm14_x86_64, lldb_xmm15_x86_64,
136 LLDB_INVALID_REGNUM // Register sets must be terminated with
137 // LLDB_INVALID_REGNUM.
139 static_assert((sizeof(g_lldb_regnums_x86_64) /
140 sizeof(g_lldb_regnums_x86_64[0])) -
142 k_num_fpr_registers_x86_64,
143 "g_lldb_regnums_x86_64 has wrong number of register infos");
145 static const uint32_t g_avx_regnums_x86_64[] = {
146 lldb_ymm0_x86_64, lldb_ymm1_x86_64, lldb_ymm2_x86_64, lldb_ymm3_x86_64,
147 lldb_ymm4_x86_64, lldb_ymm5_x86_64, lldb_ymm6_x86_64, lldb_ymm7_x86_64,
148 lldb_ymm8_x86_64, lldb_ymm9_x86_64, lldb_ymm10_x86_64, lldb_ymm11_x86_64,
149 lldb_ymm12_x86_64, lldb_ymm13_x86_64, lldb_ymm14_x86_64, lldb_ymm15_x86_64,
150 LLDB_INVALID_REGNUM // Register sets must be terminated with
151 // LLDB_INVALID_REGNUM.
153 static_assert((sizeof(g_avx_regnums_x86_64) / sizeof(g_avx_regnums_x86_64[0])) -
155 k_num_avx_registers_x86_64,
156 "g_avx_regnums_x86_64 has wrong number of register infos");
158 uint32_t RegisterContextPOSIX_x86::g_contained_eax[] = {lldb_eax_i386,
159 LLDB_INVALID_REGNUM};
160 uint32_t RegisterContextPOSIX_x86::g_contained_ebx[] = {lldb_ebx_i386,
161 LLDB_INVALID_REGNUM};
162 uint32_t RegisterContextPOSIX_x86::g_contained_ecx[] = {lldb_ecx_i386,
163 LLDB_INVALID_REGNUM};
164 uint32_t RegisterContextPOSIX_x86::g_contained_edx[] = {lldb_edx_i386,
165 LLDB_INVALID_REGNUM};
166 uint32_t RegisterContextPOSIX_x86::g_contained_edi[] = {lldb_edi_i386,
167 LLDB_INVALID_REGNUM};
168 uint32_t RegisterContextPOSIX_x86::g_contained_esi[] = {lldb_esi_i386,
169 LLDB_INVALID_REGNUM};
170 uint32_t RegisterContextPOSIX_x86::g_contained_ebp[] = {lldb_ebp_i386,
171 LLDB_INVALID_REGNUM};
172 uint32_t RegisterContextPOSIX_x86::g_contained_esp[] = {lldb_esp_i386,
173 LLDB_INVALID_REGNUM};
175 uint32_t RegisterContextPOSIX_x86::g_invalidate_eax[] = {
176 lldb_eax_i386, lldb_ax_i386, lldb_ah_i386, lldb_al_i386,
177 LLDB_INVALID_REGNUM};
178 uint32_t RegisterContextPOSIX_x86::g_invalidate_ebx[] = {
179 lldb_ebx_i386, lldb_bx_i386, lldb_bh_i386, lldb_bl_i386,
180 LLDB_INVALID_REGNUM};
181 uint32_t RegisterContextPOSIX_x86::g_invalidate_ecx[] = {
182 lldb_ecx_i386, lldb_cx_i386, lldb_ch_i386, lldb_cl_i386,
183 LLDB_INVALID_REGNUM};
184 uint32_t RegisterContextPOSIX_x86::g_invalidate_edx[] = {
185 lldb_edx_i386, lldb_dx_i386, lldb_dh_i386, lldb_dl_i386,
186 LLDB_INVALID_REGNUM};
187 uint32_t RegisterContextPOSIX_x86::g_invalidate_edi[] = {
188 lldb_edi_i386, lldb_di_i386, LLDB_INVALID_REGNUM};
189 uint32_t RegisterContextPOSIX_x86::g_invalidate_esi[] = {
190 lldb_esi_i386, lldb_si_i386, LLDB_INVALID_REGNUM};
191 uint32_t RegisterContextPOSIX_x86::g_invalidate_ebp[] = {
192 lldb_ebp_i386, lldb_bp_i386, LLDB_INVALID_REGNUM};
193 uint32_t RegisterContextPOSIX_x86::g_invalidate_esp[] = {
194 lldb_esp_i386, lldb_sp_i386, LLDB_INVALID_REGNUM};
196 uint32_t RegisterContextPOSIX_x86::g_contained_rax[] = {lldb_rax_x86_64,
197 LLDB_INVALID_REGNUM};
198 uint32_t RegisterContextPOSIX_x86::g_contained_rbx[] = {lldb_rbx_x86_64,
199 LLDB_INVALID_REGNUM};
200 uint32_t RegisterContextPOSIX_x86::g_contained_rcx[] = {lldb_rcx_x86_64,
201 LLDB_INVALID_REGNUM};
202 uint32_t RegisterContextPOSIX_x86::g_contained_rdx[] = {lldb_rdx_x86_64,
203 LLDB_INVALID_REGNUM};
204 uint32_t RegisterContextPOSIX_x86::g_contained_rdi[] = {lldb_rdi_x86_64,
205 LLDB_INVALID_REGNUM};
206 uint32_t RegisterContextPOSIX_x86::g_contained_rsi[] = {lldb_rsi_x86_64,
207 LLDB_INVALID_REGNUM};
208 uint32_t RegisterContextPOSIX_x86::g_contained_rbp[] = {lldb_rbp_x86_64,
209 LLDB_INVALID_REGNUM};
210 uint32_t RegisterContextPOSIX_x86::g_contained_rsp[] = {lldb_rsp_x86_64,
211 LLDB_INVALID_REGNUM};
212 uint32_t RegisterContextPOSIX_x86::g_contained_r8[] = {lldb_r8_x86_64,
213 LLDB_INVALID_REGNUM};
214 uint32_t RegisterContextPOSIX_x86::g_contained_r9[] = {lldb_r9_x86_64,
215 LLDB_INVALID_REGNUM};
216 uint32_t RegisterContextPOSIX_x86::g_contained_r10[] = {lldb_r10_x86_64,
217 LLDB_INVALID_REGNUM};
218 uint32_t RegisterContextPOSIX_x86::g_contained_r11[] = {lldb_r11_x86_64,
219 LLDB_INVALID_REGNUM};
220 uint32_t RegisterContextPOSIX_x86::g_contained_r12[] = {lldb_r12_x86_64,
221 LLDB_INVALID_REGNUM};
222 uint32_t RegisterContextPOSIX_x86::g_contained_r13[] = {lldb_r13_x86_64,
223 LLDB_INVALID_REGNUM};
224 uint32_t RegisterContextPOSIX_x86::g_contained_r14[] = {lldb_r14_x86_64,
225 LLDB_INVALID_REGNUM};
226 uint32_t RegisterContextPOSIX_x86::g_contained_r15[] = {lldb_r15_x86_64,
227 LLDB_INVALID_REGNUM};
229 uint32_t RegisterContextPOSIX_x86::g_invalidate_rax[] = {
230 lldb_rax_x86_64, lldb_eax_x86_64, lldb_ax_x86_64,
231 lldb_ah_x86_64, lldb_al_x86_64, LLDB_INVALID_REGNUM};
232 uint32_t RegisterContextPOSIX_x86::g_invalidate_rbx[] = {
233 lldb_rbx_x86_64, lldb_ebx_x86_64, lldb_bx_x86_64,
234 lldb_bh_x86_64, lldb_bl_x86_64, LLDB_INVALID_REGNUM};
235 uint32_t RegisterContextPOSIX_x86::g_invalidate_rcx[] = {
236 lldb_rcx_x86_64, lldb_ecx_x86_64, lldb_cx_x86_64,
237 lldb_ch_x86_64, lldb_cl_x86_64, LLDB_INVALID_REGNUM};
238 uint32_t RegisterContextPOSIX_x86::g_invalidate_rdx[] = {
239 lldb_rdx_x86_64, lldb_edx_x86_64, lldb_dx_x86_64,
240 lldb_dh_x86_64, lldb_dl_x86_64, LLDB_INVALID_REGNUM};
241 uint32_t RegisterContextPOSIX_x86::g_invalidate_rdi[] = {
242 lldb_rdi_x86_64, lldb_edi_x86_64, lldb_di_x86_64, lldb_dil_x86_64,
243 LLDB_INVALID_REGNUM};
244 uint32_t RegisterContextPOSIX_x86::g_invalidate_rsi[] = {
245 lldb_rsi_x86_64, lldb_esi_x86_64, lldb_si_x86_64, lldb_sil_x86_64,
246 LLDB_INVALID_REGNUM};
247 uint32_t RegisterContextPOSIX_x86::g_invalidate_rbp[] = {
248 lldb_rbp_x86_64, lldb_ebp_x86_64, lldb_bp_x86_64, lldb_bpl_x86_64,
249 LLDB_INVALID_REGNUM};
250 uint32_t RegisterContextPOSIX_x86::g_invalidate_rsp[] = {
251 lldb_rsp_x86_64, lldb_esp_x86_64, lldb_sp_x86_64, lldb_spl_x86_64,
252 LLDB_INVALID_REGNUM};
253 uint32_t RegisterContextPOSIX_x86::g_invalidate_r8[] = {
254 lldb_r8_x86_64, lldb_r8d_x86_64, lldb_r8w_x86_64, lldb_r8l_x86_64,
255 LLDB_INVALID_REGNUM};
256 uint32_t RegisterContextPOSIX_x86::g_invalidate_r9[] = {
257 lldb_r9_x86_64, lldb_r9d_x86_64, lldb_r9w_x86_64, lldb_r9l_x86_64,
258 LLDB_INVALID_REGNUM};
259 uint32_t RegisterContextPOSIX_x86::g_invalidate_r10[] = {
260 lldb_r10_x86_64, lldb_r10d_x86_64, lldb_r10w_x86_64, lldb_r10l_x86_64,
261 LLDB_INVALID_REGNUM};
262 uint32_t RegisterContextPOSIX_x86::g_invalidate_r11[] = {
263 lldb_r11_x86_64, lldb_r11d_x86_64, lldb_r11w_x86_64, lldb_r11l_x86_64,
264 LLDB_INVALID_REGNUM};
265 uint32_t RegisterContextPOSIX_x86::g_invalidate_r12[] = {
266 lldb_r12_x86_64, lldb_r12d_x86_64, lldb_r12w_x86_64, lldb_r12l_x86_64,
267 LLDB_INVALID_REGNUM};
268 uint32_t RegisterContextPOSIX_x86::g_invalidate_r13[] = {
269 lldb_r13_x86_64, lldb_r13d_x86_64, lldb_r13w_x86_64, lldb_r13l_x86_64,
270 LLDB_INVALID_REGNUM};
271 uint32_t RegisterContextPOSIX_x86::g_invalidate_r14[] = {
272 lldb_r14_x86_64, lldb_r14d_x86_64, lldb_r14w_x86_64, lldb_r14l_x86_64,
273 LLDB_INVALID_REGNUM};
274 uint32_t RegisterContextPOSIX_x86::g_invalidate_r15[] = {
275 lldb_r15_x86_64, lldb_r15d_x86_64, lldb_r15w_x86_64, lldb_r15l_x86_64,
276 LLDB_INVALID_REGNUM};
278 // Number of register sets provided by this context.
279 enum { k_num_extended_register_sets = 1, k_num_register_sets = 3 };
281 static const RegisterSet g_reg_sets_i386[k_num_register_sets] = {
282 {"General Purpose Registers", "gpr", k_num_gpr_registers_i386,
284 {"Floating Point Registers", "fpu", k_num_fpr_registers_i386,
285 g_lldb_regnums_i386},
286 {"Advanced Vector Extensions", "avx", k_num_avx_registers_i386,
287 g_avx_regnums_i386}};
289 static const RegisterSet g_reg_sets_x86_64[k_num_register_sets] = {
290 {"General Purpose Registers", "gpr", k_num_gpr_registers_x86_64,
291 g_gpr_regnums_x86_64},
292 {"Floating Point Registers", "fpu", k_num_fpr_registers_x86_64,
293 g_lldb_regnums_x86_64},
294 {"Advanced Vector Extensions", "avx", k_num_avx_registers_x86_64,
295 g_avx_regnums_x86_64}};
297 bool RegisterContextPOSIX_x86::IsGPR(unsigned reg) {
298 return reg <= m_reg_info.last_gpr; // GPR's come first.
301 bool RegisterContextPOSIX_x86::IsFPR(unsigned reg) {
302 return (m_reg_info.first_fpr <= reg && reg <= m_reg_info.last_fpr);
305 bool RegisterContextPOSIX_x86::IsAVX(unsigned reg) {
306 return (m_reg_info.first_ymm <= reg && reg <= m_reg_info.last_ymm);
309 bool RegisterContextPOSIX_x86::IsFPR(unsigned reg, FPRType fpr_type) {
310 bool generic_fpr = IsFPR(reg);
312 if (fpr_type == eXSAVE)
313 return generic_fpr || IsAVX(reg);
317 RegisterContextPOSIX_x86::RegisterContextPOSIX_x86(
318 Thread &thread, uint32_t concrete_frame_idx,
319 RegisterInfoInterface *register_info)
320 : RegisterContext(thread, concrete_frame_idx) {
321 m_register_info_up.reset(register_info);
323 switch (register_info->m_target_arch.GetMachine()) {
324 case llvm::Triple::x86:
325 m_reg_info.num_registers = k_num_registers_i386;
326 m_reg_info.num_gpr_registers = k_num_gpr_registers_i386;
327 m_reg_info.num_fpr_registers = k_num_fpr_registers_i386;
328 m_reg_info.num_avx_registers = k_num_avx_registers_i386;
329 m_reg_info.last_gpr = k_last_gpr_i386;
330 m_reg_info.first_fpr = k_first_fpr_i386;
331 m_reg_info.last_fpr = k_last_fpr_i386;
332 m_reg_info.first_st = lldb_st0_i386;
333 m_reg_info.last_st = lldb_st7_i386;
334 m_reg_info.first_mm = lldb_mm0_i386;
335 m_reg_info.last_mm = lldb_mm7_i386;
336 m_reg_info.first_xmm = lldb_xmm0_i386;
337 m_reg_info.last_xmm = lldb_xmm7_i386;
338 m_reg_info.first_ymm = lldb_ymm0_i386;
339 m_reg_info.last_ymm = lldb_ymm7_i386;
340 m_reg_info.first_dr = lldb_dr0_i386;
341 m_reg_info.gpr_flags = lldb_eflags_i386;
343 case llvm::Triple::x86_64:
344 m_reg_info.num_registers = k_num_registers_x86_64;
345 m_reg_info.num_gpr_registers = k_num_gpr_registers_x86_64;
346 m_reg_info.num_fpr_registers = k_num_fpr_registers_x86_64;
347 m_reg_info.num_avx_registers = k_num_avx_registers_x86_64;
348 m_reg_info.last_gpr = k_last_gpr_x86_64;
349 m_reg_info.first_fpr = k_first_fpr_x86_64;
350 m_reg_info.last_fpr = k_last_fpr_x86_64;
351 m_reg_info.first_st = lldb_st0_x86_64;
352 m_reg_info.last_st = lldb_st7_x86_64;
353 m_reg_info.first_mm = lldb_mm0_x86_64;
354 m_reg_info.last_mm = lldb_mm7_x86_64;
355 m_reg_info.first_xmm = lldb_xmm0_x86_64;
356 m_reg_info.last_xmm = lldb_xmm15_x86_64;
357 m_reg_info.first_ymm = lldb_ymm0_x86_64;
358 m_reg_info.last_ymm = lldb_ymm15_x86_64;
359 m_reg_info.first_dr = lldb_dr0_x86_64;
360 m_reg_info.gpr_flags = lldb_rflags_x86_64;
363 assert(false && "Unhandled target architecture.");
367 ::memset(&m_fpr, 0, sizeof(FPR));
369 m_fpr_type = eNotValid;
372 RegisterContextPOSIX_x86::~RegisterContextPOSIX_x86() {}
374 RegisterContextPOSIX_x86::FPRType RegisterContextPOSIX_x86::GetFPRType() {
375 if (m_fpr_type == eNotValid) {
376 // TODO: Use assembly to call cpuid on the inferior and query ebx or ecx
377 m_fpr_type = eXSAVE; // extended floating-point registers, if available
379 m_fpr_type = eFXSAVE; // assume generic floating-point registers
384 void RegisterContextPOSIX_x86::Invalidate() {}
386 void RegisterContextPOSIX_x86::InvalidateAllRegisters() {}
388 unsigned RegisterContextPOSIX_x86::GetRegisterOffset(unsigned reg) {
389 assert(reg < m_reg_info.num_registers && "Invalid register number.");
390 return GetRegisterInfo()[reg].byte_offset;
393 unsigned RegisterContextPOSIX_x86::GetRegisterSize(unsigned reg) {
394 assert(reg < m_reg_info.num_registers && "Invalid register number.");
395 return GetRegisterInfo()[reg].byte_size;
398 size_t RegisterContextPOSIX_x86::GetRegisterCount() {
399 size_t num_registers =
400 m_reg_info.num_gpr_registers + m_reg_info.num_fpr_registers;
401 if (GetFPRType() == eXSAVE)
402 return num_registers + m_reg_info.num_avx_registers;
403 return num_registers;
406 size_t RegisterContextPOSIX_x86::GetGPRSize() {
407 return m_register_info_up->GetGPRSize();
410 size_t RegisterContextPOSIX_x86::GetFXSAVEOffset() {
411 return GetRegisterInfo()[m_reg_info.first_fpr].byte_offset;
414 const RegisterInfo *RegisterContextPOSIX_x86::GetRegisterInfo() {
415 // Commonly, this method is overridden and g_register_infos is copied and
416 // specialized. So, use GetRegisterInfo() rather than g_register_infos in
418 return m_register_info_up->GetRegisterInfo();
422 RegisterContextPOSIX_x86::GetRegisterInfoAtIndex(size_t reg) {
423 if (reg < m_reg_info.num_registers)
424 return &GetRegisterInfo()[reg];
429 size_t RegisterContextPOSIX_x86::GetRegisterSetCount() {
431 for (size_t set = 0; set < k_num_register_sets; ++set) {
432 if (IsRegisterSetAvailable(set))
439 const RegisterSet *RegisterContextPOSIX_x86::GetRegisterSet(size_t set) {
440 if (IsRegisterSetAvailable(set)) {
441 switch (m_register_info_up->m_target_arch.GetMachine()) {
442 case llvm::Triple::x86:
443 return &g_reg_sets_i386[set];
444 case llvm::Triple::x86_64:
445 return &g_reg_sets_x86_64[set];
447 assert(false && "Unhandled target architecture.");
454 const char *RegisterContextPOSIX_x86::GetRegisterName(unsigned reg) {
455 assert(reg < m_reg_info.num_registers && "Invalid register offset.");
456 return GetRegisterInfo()[reg].name;
459 lldb::ByteOrder RegisterContextPOSIX_x86::GetByteOrder() {
460 // Get the target process whose privileged thread was used for the register
462 lldb::ByteOrder byte_order = eByteOrderInvalid;
463 Process *process = CalculateProcess().get();
466 byte_order = process->GetByteOrder();
470 // Parse ymm registers and into xmm.bytes and ymmh.bytes.
471 bool RegisterContextPOSIX_x86::CopyYMMtoXSTATE(uint32_t reg,
472 lldb::ByteOrder byte_order) {
476 if (byte_order == eByteOrderLittle) {
477 uint32_t reg_no = reg - m_reg_info.first_ymm;
478 YMMToXState(m_ymm_set.ymm[reg_no],
479 m_fpr.fxsave.xmm[reg_no].bytes,
480 m_fpr.xsave.ymmh[reg_no].bytes);
484 return false; // unsupported or invalid byte order
487 // Concatenate xmm.bytes with ymmh.bytes
488 bool RegisterContextPOSIX_x86::CopyXSTATEtoYMM(uint32_t reg,
489 lldb::ByteOrder byte_order) {
493 if (byte_order == eByteOrderLittle) {
494 uint32_t reg_no = reg - m_reg_info.first_ymm;
495 m_ymm_set.ymm[reg_no] = XStateToYMM(
496 m_fpr.fxsave.xmm[reg_no].bytes,
497 m_fpr.xsave.ymmh[reg_no].bytes);
501 return false; // unsupported or invalid byte order
504 bool RegisterContextPOSIX_x86::IsRegisterSetAvailable(size_t set_index) {
505 // Note: Extended register sets are assumed to be at the end of g_reg_sets...
506 size_t num_sets = k_num_register_sets - k_num_extended_register_sets;
508 if (GetFPRType() == eXSAVE) // ...and to start with AVX registers.
510 return (set_index < num_sets);
513 // Used when parsing DWARF and EH frame information and any other object file
514 // sections that contain register numbers in them.
515 uint32_t RegisterContextPOSIX_x86::ConvertRegisterKindToRegisterNumber(
516 lldb::RegisterKind kind, uint32_t num) {
517 const uint32_t num_regs = GetRegisterCount();
519 assert(kind < kNumRegisterKinds);
520 for (uint32_t reg_idx = 0; reg_idx < num_regs; ++reg_idx) {
521 const RegisterInfo *reg_info = GetRegisterInfoAtIndex(reg_idx);
523 if (reg_info->kinds[kind] == num)
527 return LLDB_INVALID_REGNUM;