1 //===-- RegisterContextPOSIX_x86.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 //===----------------------------------------------------------------------===//
14 #include "lldb/Core/DataBufferHeap.h"
15 #include "lldb/Core/DataExtractor.h"
16 #include "lldb/Core/RegisterValue.h"
17 #include "lldb/Core/Scalar.h"
18 #include "lldb/Host/Endian.h"
19 #include "lldb/Target/Target.h"
20 #include "lldb/Target/Thread.h"
21 #include "lldb/Target/Process.h"
22 #include "llvm/Support/Compiler.h"
24 #include "RegisterContextPOSIX_x86.h"
25 #include "RegisterContext_x86.h"
27 using namespace lldb_private;
30 const uint32_t g_gpr_regnums_i386[] = {
31 lldb_eax_i386, lldb_ebx_i386, lldb_ecx_i386, lldb_edx_i386,
32 lldb_edi_i386, lldb_esi_i386, lldb_ebp_i386, lldb_esp_i386,
33 lldb_eip_i386, lldb_eflags_i386, lldb_cs_i386, lldb_fs_i386,
34 lldb_gs_i386, lldb_ss_i386, lldb_ds_i386, lldb_es_i386,
35 lldb_ax_i386, lldb_bx_i386, lldb_cx_i386, lldb_dx_i386,
36 lldb_di_i386, lldb_si_i386, lldb_bp_i386, lldb_sp_i386,
37 lldb_ah_i386, lldb_bh_i386, lldb_ch_i386, lldb_dh_i386,
38 lldb_al_i386, lldb_bl_i386, lldb_cl_i386, lldb_dl_i386,
39 LLDB_INVALID_REGNUM, // Register sets must be terminated with
40 // LLDB_INVALID_REGNUM.
42 static_assert((sizeof(g_gpr_regnums_i386) / sizeof(g_gpr_regnums_i386[0])) -
44 k_num_gpr_registers_i386,
45 "g_gpr_regnums_i386 has wrong number of register infos");
47 const uint32_t g_lldb_regnums_i386[] = {
48 lldb_fctrl_i386, lldb_fstat_i386, lldb_ftag_i386, lldb_fop_i386,
49 lldb_fiseg_i386, lldb_fioff_i386, lldb_foseg_i386, lldb_fooff_i386,
50 lldb_mxcsr_i386, lldb_mxcsrmask_i386, lldb_st0_i386, lldb_st1_i386,
51 lldb_st2_i386, lldb_st3_i386, lldb_st4_i386, lldb_st5_i386,
52 lldb_st6_i386, lldb_st7_i386, lldb_mm0_i386, lldb_mm1_i386,
53 lldb_mm2_i386, lldb_mm3_i386, lldb_mm4_i386, lldb_mm5_i386,
54 lldb_mm6_i386, lldb_mm7_i386, lldb_xmm0_i386, lldb_xmm1_i386,
55 lldb_xmm2_i386, lldb_xmm3_i386, lldb_xmm4_i386, lldb_xmm5_i386,
56 lldb_xmm6_i386, lldb_xmm7_i386,
57 LLDB_INVALID_REGNUM // Register sets must be terminated with
58 // LLDB_INVALID_REGNUM.
60 static_assert((sizeof(g_lldb_regnums_i386) / sizeof(g_lldb_regnums_i386[0])) -
62 k_num_fpr_registers_i386,
63 "g_lldb_regnums_i386 has wrong number of register infos");
65 const uint32_t g_avx_regnums_i386[] = {
66 lldb_ymm0_i386, lldb_ymm1_i386, lldb_ymm2_i386, lldb_ymm3_i386,
67 lldb_ymm4_i386, lldb_ymm5_i386, lldb_ymm6_i386, lldb_ymm7_i386,
68 LLDB_INVALID_REGNUM // Register sets must be terminated with
69 // LLDB_INVALID_REGNUM.
71 static_assert((sizeof(g_avx_regnums_i386) / sizeof(g_avx_regnums_i386[0])) -
73 k_num_avx_registers_i386,
74 " g_avx_regnums_i386 has wrong number of register infos");
76 static const uint32_t g_gpr_regnums_x86_64[] = {
77 lldb_rax_x86_64, lldb_rbx_x86_64, lldb_rcx_x86_64, lldb_rdx_x86_64,
78 lldb_rdi_x86_64, lldb_rsi_x86_64, lldb_rbp_x86_64, lldb_rsp_x86_64,
79 lldb_r8_x86_64, lldb_r9_x86_64, lldb_r10_x86_64, lldb_r11_x86_64,
80 lldb_r12_x86_64, lldb_r13_x86_64, lldb_r14_x86_64, lldb_r15_x86_64,
81 lldb_rip_x86_64, lldb_rflags_x86_64, lldb_cs_x86_64, lldb_fs_x86_64,
82 lldb_gs_x86_64, lldb_ss_x86_64, lldb_ds_x86_64, lldb_es_x86_64,
83 lldb_eax_x86_64, lldb_ebx_x86_64, lldb_ecx_x86_64, lldb_edx_x86_64,
84 lldb_edi_x86_64, lldb_esi_x86_64, lldb_ebp_x86_64, lldb_esp_x86_64,
85 lldb_r8d_x86_64, // Low 32 bits or r8
86 lldb_r9d_x86_64, // Low 32 bits or r9
87 lldb_r10d_x86_64, // Low 32 bits or r10
88 lldb_r11d_x86_64, // Low 32 bits or r11
89 lldb_r12d_x86_64, // Low 32 bits or r12
90 lldb_r13d_x86_64, // Low 32 bits or r13
91 lldb_r14d_x86_64, // Low 32 bits or r14
92 lldb_r15d_x86_64, // Low 32 bits or r15
93 lldb_ax_x86_64, lldb_bx_x86_64, lldb_cx_x86_64, lldb_dx_x86_64,
94 lldb_di_x86_64, lldb_si_x86_64, lldb_bp_x86_64, lldb_sp_x86_64,
95 lldb_r8w_x86_64, // Low 16 bits or r8
96 lldb_r9w_x86_64, // Low 16 bits or r9
97 lldb_r10w_x86_64, // Low 16 bits or r10
98 lldb_r11w_x86_64, // Low 16 bits or r11
99 lldb_r12w_x86_64, // Low 16 bits or r12
100 lldb_r13w_x86_64, // Low 16 bits or r13
101 lldb_r14w_x86_64, // Low 16 bits or r14
102 lldb_r15w_x86_64, // Low 16 bits or r15
103 lldb_ah_x86_64, lldb_bh_x86_64, lldb_ch_x86_64, lldb_dh_x86_64,
104 lldb_al_x86_64, lldb_bl_x86_64, lldb_cl_x86_64, lldb_dl_x86_64,
105 lldb_dil_x86_64, lldb_sil_x86_64, lldb_bpl_x86_64, lldb_spl_x86_64,
106 lldb_r8l_x86_64, // Low 8 bits or r8
107 lldb_r9l_x86_64, // Low 8 bits or r9
108 lldb_r10l_x86_64, // Low 8 bits or r10
109 lldb_r11l_x86_64, // Low 8 bits or r11
110 lldb_r12l_x86_64, // Low 8 bits or r12
111 lldb_r13l_x86_64, // Low 8 bits or r13
112 lldb_r14l_x86_64, // Low 8 bits or r14
113 lldb_r15l_x86_64, // Low 8 bits or r15
114 LLDB_INVALID_REGNUM // Register sets must be terminated with
115 // LLDB_INVALID_REGNUM.
117 static_assert((sizeof(g_gpr_regnums_x86_64) / sizeof(g_gpr_regnums_x86_64[0])) -
119 k_num_gpr_registers_x86_64,
120 "g_gpr_regnums_x86_64 has wrong number of register infos");
122 static const uint32_t g_lldb_regnums_x86_64[] = {
123 lldb_fctrl_x86_64, lldb_fstat_x86_64, lldb_ftag_x86_64,
124 lldb_fop_x86_64, lldb_fiseg_x86_64, lldb_fioff_x86_64,
125 lldb_foseg_x86_64, lldb_fooff_x86_64, lldb_mxcsr_x86_64,
126 lldb_mxcsrmask_x86_64, lldb_st0_x86_64, lldb_st1_x86_64,
127 lldb_st2_x86_64, lldb_st3_x86_64, lldb_st4_x86_64,
128 lldb_st5_x86_64, lldb_st6_x86_64, lldb_st7_x86_64,
129 lldb_mm0_x86_64, lldb_mm1_x86_64, lldb_mm2_x86_64,
130 lldb_mm3_x86_64, lldb_mm4_x86_64, lldb_mm5_x86_64,
131 lldb_mm6_x86_64, lldb_mm7_x86_64, lldb_xmm0_x86_64,
132 lldb_xmm1_x86_64, lldb_xmm2_x86_64, lldb_xmm3_x86_64,
133 lldb_xmm4_x86_64, lldb_xmm5_x86_64, lldb_xmm6_x86_64,
134 lldb_xmm7_x86_64, lldb_xmm8_x86_64, lldb_xmm9_x86_64,
135 lldb_xmm10_x86_64, lldb_xmm11_x86_64, lldb_xmm12_x86_64,
136 lldb_xmm13_x86_64, lldb_xmm14_x86_64, lldb_xmm15_x86_64,
137 LLDB_INVALID_REGNUM // Register sets must be terminated with
138 // LLDB_INVALID_REGNUM.
140 static_assert((sizeof(g_lldb_regnums_x86_64) /
141 sizeof(g_lldb_regnums_x86_64[0])) -
143 k_num_fpr_registers_x86_64,
144 "g_lldb_regnums_x86_64 has wrong number of register infos");
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.
154 static_assert((sizeof(g_avx_regnums_x86_64) / sizeof(g_avx_regnums_x86_64[0])) -
156 k_num_avx_registers_x86_64,
157 "g_avx_regnums_x86_64 has wrong number of register infos");
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};
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};
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};
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};
279 // Number of register sets provided by this context.
280 enum { k_num_extended_register_sets = 1, k_num_register_sets = 3 };
282 static const RegisterSet g_reg_sets_i386[k_num_register_sets] = {
283 {"General Purpose Registers", "gpr", k_num_gpr_registers_i386,
285 {"Floating Point Registers", "fpu", k_num_fpr_registers_i386,
286 g_lldb_regnums_i386},
287 {"Advanced Vector Extensions", "avx", k_num_avx_registers_i386,
288 g_avx_regnums_i386}};
290 static const RegisterSet g_reg_sets_x86_64[k_num_register_sets] = {
291 {"General Purpose Registers", "gpr", k_num_gpr_registers_x86_64,
292 g_gpr_regnums_x86_64},
293 {"Floating Point Registers", "fpu", k_num_fpr_registers_x86_64,
294 g_lldb_regnums_x86_64},
295 {"Advanced Vector Extensions", "avx", k_num_avx_registers_x86_64,
296 g_avx_regnums_x86_64}};
298 bool RegisterContextPOSIX_x86::IsGPR(unsigned reg) {
299 return reg <= m_reg_info.last_gpr; // GPR's come first.
302 bool RegisterContextPOSIX_x86::IsFPR(unsigned reg) {
303 return (m_reg_info.first_fpr <= reg && reg <= m_reg_info.last_fpr);
306 bool RegisterContextPOSIX_x86::IsAVX(unsigned reg) {
307 return (m_reg_info.first_ymm <= reg && reg <= m_reg_info.last_ymm);
310 bool RegisterContextPOSIX_x86::IsFPR(unsigned reg, FPRType fpr_type) {
311 bool generic_fpr = IsFPR(reg);
313 if (fpr_type == eXSAVE)
314 return generic_fpr || IsAVX(reg);
318 RegisterContextPOSIX_x86::RegisterContextPOSIX_x86(
319 Thread &thread, uint32_t concrete_frame_idx,
320 RegisterInfoInterface *register_info)
321 : RegisterContext(thread, concrete_frame_idx) {
322 m_register_info_ap.reset(register_info);
324 switch (register_info->m_target_arch.GetMachine()) {
325 case llvm::Triple::x86:
326 m_reg_info.num_registers = k_num_registers_i386;
327 m_reg_info.num_gpr_registers = k_num_gpr_registers_i386;
328 m_reg_info.num_fpr_registers = k_num_fpr_registers_i386;
329 m_reg_info.num_avx_registers = k_num_avx_registers_i386;
330 m_reg_info.last_gpr = k_last_gpr_i386;
331 m_reg_info.first_fpr = k_first_fpr_i386;
332 m_reg_info.last_fpr = k_last_fpr_i386;
333 m_reg_info.first_st = lldb_st0_i386;
334 m_reg_info.last_st = lldb_st7_i386;
335 m_reg_info.first_mm = lldb_mm0_i386;
336 m_reg_info.last_mm = lldb_mm7_i386;
337 m_reg_info.first_xmm = lldb_xmm0_i386;
338 m_reg_info.last_xmm = lldb_xmm7_i386;
339 m_reg_info.first_ymm = lldb_ymm0_i386;
340 m_reg_info.last_ymm = lldb_ymm7_i386;
341 m_reg_info.first_dr = lldb_dr0_i386;
342 m_reg_info.gpr_flags = lldb_eflags_i386;
344 case llvm::Triple::x86_64:
345 m_reg_info.num_registers = k_num_registers_x86_64;
346 m_reg_info.num_gpr_registers = k_num_gpr_registers_x86_64;
347 m_reg_info.num_fpr_registers = k_num_fpr_registers_x86_64;
348 m_reg_info.num_avx_registers = k_num_avx_registers_x86_64;
349 m_reg_info.last_gpr = k_last_gpr_x86_64;
350 m_reg_info.first_fpr = k_first_fpr_x86_64;
351 m_reg_info.last_fpr = k_last_fpr_x86_64;
352 m_reg_info.first_st = lldb_st0_x86_64;
353 m_reg_info.last_st = lldb_st7_x86_64;
354 m_reg_info.first_mm = lldb_mm0_x86_64;
355 m_reg_info.last_mm = lldb_mm7_x86_64;
356 m_reg_info.first_xmm = lldb_xmm0_x86_64;
357 m_reg_info.last_xmm = lldb_xmm15_x86_64;
358 m_reg_info.first_ymm = lldb_ymm0_x86_64;
359 m_reg_info.last_ymm = lldb_ymm15_x86_64;
360 m_reg_info.first_dr = lldb_dr0_x86_64;
361 m_reg_info.gpr_flags = lldb_rflags_x86_64;
364 assert(false && "Unhandled target architecture.");
368 // Initialize m_iovec to point to the buffer and buffer size
369 // using the conventions of Berkeley style UIO structures, as required
370 // by PTRACE extensions.
371 m_iovec.iov_base = &m_fpr.xstate.xsave;
372 m_iovec.iov_len = sizeof(m_fpr.xstate.xsave);
374 ::memset(&m_fpr, 0, sizeof(FPR));
376 m_fpr_type = eNotValid;
379 RegisterContextPOSIX_x86::~RegisterContextPOSIX_x86() {}
381 RegisterContextPOSIX_x86::FPRType RegisterContextPOSIX_x86::GetFPRType() {
382 if (m_fpr_type == eNotValid) {
383 // TODO: Use assembly to call cpuid on the inferior and query ebx or ecx
384 m_fpr_type = eXSAVE; // extended floating-point registers, if available
385 if (false == ReadFPR())
386 m_fpr_type = eFXSAVE; // assume generic floating-point registers
391 void RegisterContextPOSIX_x86::Invalidate() {}
393 void RegisterContextPOSIX_x86::InvalidateAllRegisters() {}
395 unsigned RegisterContextPOSIX_x86::GetRegisterOffset(unsigned reg) {
396 assert(reg < m_reg_info.num_registers && "Invalid register number.");
397 return GetRegisterInfo()[reg].byte_offset;
400 unsigned RegisterContextPOSIX_x86::GetRegisterSize(unsigned reg) {
401 assert(reg < m_reg_info.num_registers && "Invalid register number.");
402 return GetRegisterInfo()[reg].byte_size;
405 size_t RegisterContextPOSIX_x86::GetRegisterCount() {
406 size_t num_registers =
407 m_reg_info.num_gpr_registers + m_reg_info.num_fpr_registers;
408 if (GetFPRType() == eXSAVE)
409 return num_registers + m_reg_info.num_avx_registers;
410 return num_registers;
413 size_t RegisterContextPOSIX_x86::GetGPRSize() {
414 return m_register_info_ap->GetGPRSize();
417 size_t RegisterContextPOSIX_x86::GetFXSAVEOffset() {
418 return GetRegisterInfo()[m_reg_info.first_fpr].byte_offset;
421 const RegisterInfo *RegisterContextPOSIX_x86::GetRegisterInfo() {
422 // Commonly, this method is overridden and g_register_infos is copied and
424 // So, use GetRegisterInfo() rather than g_register_infos in this scope.
425 return m_register_info_ap->GetRegisterInfo();
429 RegisterContextPOSIX_x86::GetRegisterInfoAtIndex(size_t reg) {
430 if (reg < m_reg_info.num_registers)
431 return &GetRegisterInfo()[reg];
436 size_t RegisterContextPOSIX_x86::GetRegisterSetCount() {
438 for (size_t set = 0; set < k_num_register_sets; ++set) {
439 if (IsRegisterSetAvailable(set))
446 const RegisterSet *RegisterContextPOSIX_x86::GetRegisterSet(size_t set) {
447 if (IsRegisterSetAvailable(set)) {
448 switch (m_register_info_ap->m_target_arch.GetMachine()) {
449 case llvm::Triple::x86:
450 return &g_reg_sets_i386[set];
451 case llvm::Triple::x86_64:
452 return &g_reg_sets_x86_64[set];
454 assert(false && "Unhandled target architecture.");
461 const char *RegisterContextPOSIX_x86::GetRegisterName(unsigned reg) {
462 assert(reg < m_reg_info.num_registers && "Invalid register offset.");
463 return GetRegisterInfo()[reg].name;
466 lldb::ByteOrder RegisterContextPOSIX_x86::GetByteOrder() {
467 // Get the target process whose privileged thread was used for the register
469 lldb::ByteOrder byte_order = eByteOrderInvalid;
470 Process *process = CalculateProcess().get();
473 byte_order = process->GetByteOrder();
477 // Parse ymm registers and into xmm.bytes and ymmh.bytes.
478 bool RegisterContextPOSIX_x86::CopyYMMtoXSTATE(uint32_t reg,
479 lldb::ByteOrder byte_order) {
483 if (byte_order == eByteOrderLittle) {
484 ::memcpy(m_fpr.xstate.fxsave.xmm[reg - m_reg_info.first_ymm].bytes,
485 m_ymm_set.ymm[reg - m_reg_info.first_ymm].bytes, sizeof(XMMReg));
486 ::memcpy(m_fpr.xstate.xsave.ymmh[reg - m_reg_info.first_ymm].bytes,
487 m_ymm_set.ymm[reg - m_reg_info.first_ymm].bytes + sizeof(XMMReg),
492 if (byte_order == eByteOrderBig) {
493 ::memcpy(m_fpr.xstate.fxsave.xmm[reg - m_reg_info.first_ymm].bytes,
494 m_ymm_set.ymm[reg - m_reg_info.first_ymm].bytes + sizeof(XMMReg),
496 ::memcpy(m_fpr.xstate.xsave.ymmh[reg - m_reg_info.first_ymm].bytes,
497 m_ymm_set.ymm[reg - m_reg_info.first_ymm].bytes, sizeof(YMMHReg));
500 return false; // unsupported or invalid byte order
503 // Concatenate xmm.bytes with ymmh.bytes
504 bool RegisterContextPOSIX_x86::CopyXSTATEtoYMM(uint32_t reg,
505 lldb::ByteOrder byte_order) {
509 if (byte_order == eByteOrderLittle) {
510 ::memcpy(m_ymm_set.ymm[reg - m_reg_info.first_ymm].bytes,
511 m_fpr.xstate.fxsave.xmm[reg - m_reg_info.first_ymm].bytes,
513 ::memcpy(m_ymm_set.ymm[reg - m_reg_info.first_ymm].bytes + sizeof(XMMReg),
514 m_fpr.xstate.xsave.ymmh[reg - m_reg_info.first_ymm].bytes,
519 if (byte_order == eByteOrderBig) {
520 ::memcpy(m_ymm_set.ymm[reg - m_reg_info.first_ymm].bytes + sizeof(XMMReg),
521 m_fpr.xstate.fxsave.xmm[reg - m_reg_info.first_ymm].bytes,
523 ::memcpy(m_ymm_set.ymm[reg - m_reg_info.first_ymm].bytes,
524 m_fpr.xstate.xsave.ymmh[reg - m_reg_info.first_ymm].bytes,
528 return false; // unsupported or invalid byte order
531 bool RegisterContextPOSIX_x86::IsRegisterSetAvailable(size_t set_index) {
532 // Note: Extended register sets are assumed to be at the end of g_reg_sets...
533 size_t num_sets = k_num_register_sets - k_num_extended_register_sets;
535 if (GetFPRType() == eXSAVE) // ...and to start with AVX registers.
537 return (set_index < num_sets);
540 // Used when parsing DWARF and EH frame information and any other
541 // object file sections that contain register numbers in them.
542 uint32_t RegisterContextPOSIX_x86::ConvertRegisterKindToRegisterNumber(
543 lldb::RegisterKind kind, uint32_t num) {
544 const uint32_t num_regs = GetRegisterCount();
546 assert(kind < kNumRegisterKinds);
547 for (uint32_t reg_idx = 0; reg_idx < num_regs; ++reg_idx) {
548 const RegisterInfo *reg_info = GetRegisterInfoAtIndex(reg_idx);
550 if (reg_info->kinds[kind] == num)
554 return LLDB_INVALID_REGNUM;