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
26using namespace lldb_private;
27using namespace lldb;
28
29const 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};
41static_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
46const 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};
59static_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
64const 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};
70static_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
75static 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};
116static_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
121static 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};
140static_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
146static 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};
154static_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
159uint32_t RegisterContextPOSIX_x86::g_contained_eax[] = {lldb_eax_i386,
160 LLDB_INVALID_REGNUM};
161uint32_t RegisterContextPOSIX_x86::g_contained_ebx[] = {lldb_ebx_i386,
162 LLDB_INVALID_REGNUM};
163uint32_t RegisterContextPOSIX_x86::g_contained_ecx[] = {lldb_ecx_i386,
164 LLDB_INVALID_REGNUM};
165uint32_t RegisterContextPOSIX_x86::g_contained_edx[] = {lldb_edx_i386,
166 LLDB_INVALID_REGNUM};
167uint32_t RegisterContextPOSIX_x86::g_contained_edi[] = {lldb_edi_i386,
168 LLDB_INVALID_REGNUM};
169uint32_t RegisterContextPOSIX_x86::g_contained_esi[] = {lldb_esi_i386,
170 LLDB_INVALID_REGNUM};
171uint32_t RegisterContextPOSIX_x86::g_contained_ebp[] = {lldb_ebp_i386,
172 LLDB_INVALID_REGNUM};
173uint32_t RegisterContextPOSIX_x86::g_contained_esp[] = {lldb_esp_i386,
174 LLDB_INVALID_REGNUM};
175
176uint32_t RegisterContextPOSIX_x86::g_invalidate_eax[] = {
177 lldb_eax_i386, lldb_ax_i386, lldb_ah_i386, lldb_al_i386,
178 LLDB_INVALID_REGNUM};
179uint32_t RegisterContextPOSIX_x86::g_invalidate_ebx[] = {
180 lldb_ebx_i386, lldb_bx_i386, lldb_bh_i386, lldb_bl_i386,
181 LLDB_INVALID_REGNUM};
182uint32_t RegisterContextPOSIX_x86::g_invalidate_ecx[] = {
183 lldb_ecx_i386, lldb_cx_i386, lldb_ch_i386, lldb_cl_i386,
184 LLDB_INVALID_REGNUM};
185uint32_t RegisterContextPOSIX_x86::g_invalidate_edx[] = {
186 lldb_edx_i386, lldb_dx_i386, lldb_dh_i386, lldb_dl_i386,
187 LLDB_INVALID_REGNUM};
188uint32_t RegisterContextPOSIX_x86::g_invalidate_edi[] = {
189 lldb_edi_i386, lldb_di_i386, LLDB_INVALID_REGNUM};
190uint32_t RegisterContextPOSIX_x86::g_invalidate_esi[] = {
191 lldb_esi_i386, lldb_si_i386, LLDB_INVALID_REGNUM};
192uint32_t RegisterContextPOSIX_x86::g_invalidate_ebp[] = {
193 lldb_ebp_i386, lldb_bp_i386, LLDB_INVALID_REGNUM};
194uint32_t RegisterContextPOSIX_x86::g_invalidate_esp[] = {
195 lldb_esp_i386, lldb_sp_i386, LLDB_INVALID_REGNUM};
196
197uint32_t RegisterContextPOSIX_x86::g_contained_rax[] = {lldb_rax_x86_64,
198 LLDB_INVALID_REGNUM};
199uint32_t RegisterContextPOSIX_x86::g_contained_rbx[] = {lldb_rbx_x86_64,
200 LLDB_INVALID_REGNUM};
201uint32_t RegisterContextPOSIX_x86::g_contained_rcx[] = {lldb_rcx_x86_64,
202 LLDB_INVALID_REGNUM};
203uint32_t RegisterContextPOSIX_x86::g_contained_rdx[] = {lldb_rdx_x86_64,
204 LLDB_INVALID_REGNUM};
205uint32_t RegisterContextPOSIX_x86::g_contained_rdi[] = {lldb_rdi_x86_64,
206 LLDB_INVALID_REGNUM};
207uint32_t RegisterContextPOSIX_x86::g_contained_rsi[] = {lldb_rsi_x86_64,
208 LLDB_INVALID_REGNUM};
209uint32_t RegisterContextPOSIX_x86::g_contained_rbp[] = {lldb_rbp_x86_64,
210 LLDB_INVALID_REGNUM};
211uint32_t RegisterContextPOSIX_x86::g_contained_rsp[] = {lldb_rsp_x86_64,
212 LLDB_INVALID_REGNUM};
213uint32_t RegisterContextPOSIX_x86::g_contained_r8[] = {lldb_r8_x86_64,
214 LLDB_INVALID_REGNUM};
215uint32_t RegisterContextPOSIX_x86::g_contained_r9[] = {lldb_r9_x86_64,
216 LLDB_INVALID_REGNUM};
217uint32_t RegisterContextPOSIX_x86::g_contained_r10[] = {lldb_r10_x86_64,
218 LLDB_INVALID_REGNUM};
219uint32_t RegisterContextPOSIX_x86::g_contained_r11[] = {lldb_r11_x86_64,
220 LLDB_INVALID_REGNUM};
221uint32_t RegisterContextPOSIX_x86::g_contained_r12[] = {lldb_r12_x86_64,
222 LLDB_INVALID_REGNUM};
223uint32_t RegisterContextPOSIX_x86::g_contained_r13[] = {lldb_r13_x86_64,
224 LLDB_INVALID_REGNUM};
225uint32_t RegisterContextPOSIX_x86::g_contained_r14[] = {lldb_r14_x86_64,
226 LLDB_INVALID_REGNUM};
227uint32_t RegisterContextPOSIX_x86::g_contained_r15[] = {lldb_r15_x86_64,
228 LLDB_INVALID_REGNUM};
229
230uint32_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};
233uint32_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};
236uint32_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};
239uint32_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};
242uint32_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};
245uint32_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};
248uint32_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};
251uint32_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};
254uint32_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};
257uint32_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};
260uint32_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};
263uint32_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};
266uint32_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};
269uint32_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};
272uint32_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};
275uint32_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
279uint32_t RegisterContextPOSIX_x86::g_contained_fip[] = {lldb_fip_x86_64,
280 LLDB_INVALID_REGNUM};
281uint32_t RegisterContextPOSIX_x86::g_contained_fdp[] = {lldb_fdp_x86_64,
282 LLDB_INVALID_REGNUM};
283
284uint32_t RegisterContextPOSIX_x86::g_invalidate_fip[] = {
285 lldb_fip_x86_64, lldb_fioff_x86_64, lldb_fiseg_x86_64, LLDB_INVALID_REGNUM};
286uint32_t RegisterContextPOSIX_x86::g_invalidate_fdp[] = {
287 lldb_fdp_x86_64, lldb_fooff_x86_64, lldb_foseg_x86_64, LLDB_INVALID_REGNUM};
288
289uint32_t RegisterContextPOSIX_x86::g_contained_st0_32[] = {lldb_st0_i386,
290 LLDB_INVALID_REGNUM};
291uint32_t RegisterContextPOSIX_x86::g_contained_st1_32[] = {lldb_st1_i386,
292 LLDB_INVALID_REGNUM};
293uint32_t RegisterContextPOSIX_x86::g_contained_st2_32[] = {lldb_st2_i386,
294 LLDB_INVALID_REGNUM};
295uint32_t RegisterContextPOSIX_x86::g_contained_st3_32[] = {lldb_st3_i386,
296 LLDB_INVALID_REGNUM};
297uint32_t RegisterContextPOSIX_x86::g_contained_st4_32[] = {lldb_st4_i386,
298 LLDB_INVALID_REGNUM};
299uint32_t RegisterContextPOSIX_x86::g_contained_st5_32[] = {lldb_st5_i386,
300 LLDB_INVALID_REGNUM};
301uint32_t RegisterContextPOSIX_x86::g_contained_st6_32[] = {lldb_st6_i386,
302 LLDB_INVALID_REGNUM};
303uint32_t RegisterContextPOSIX_x86::g_contained_st7_32[] = {lldb_st7_i386,
304 LLDB_INVALID_REGNUM};
305
306uint32_t RegisterContextPOSIX_x86::g_invalidate_st0_32[] = {
307 lldb_st0_i386, lldb_mm0_i386, LLDB_INVALID_REGNUM};
308uint32_t RegisterContextPOSIX_x86::g_invalidate_st1_32[] = {
309 lldb_st1_i386, lldb_mm1_i386, LLDB_INVALID_REGNUM};
310uint32_t RegisterContextPOSIX_x86::g_invalidate_st2_32[] = {
311 lldb_st2_i386, lldb_mm2_i386, LLDB_INVALID_REGNUM};
312uint32_t RegisterContextPOSIX_x86::g_invalidate_st3_32[] = {
313 lldb_st3_i386, lldb_mm3_i386, LLDB_INVALID_REGNUM};
314uint32_t RegisterContextPOSIX_x86::g_invalidate_st4_32[] = {
315 lldb_st4_i386, lldb_mm4_i386, LLDB_INVALID_REGNUM};
316uint32_t RegisterContextPOSIX_x86::g_invalidate_st5_32[] = {
317 lldb_st5_i386, lldb_mm5_i386, LLDB_INVALID_REGNUM};
318uint32_t RegisterContextPOSIX_x86::g_invalidate_st6_32[] = {
319 lldb_st6_i386, lldb_mm6_i386, LLDB_INVALID_REGNUM};
320uint32_t RegisterContextPOSIX_x86::g_invalidate_st7_32[] = {
321 lldb_st7_i386, lldb_mm7_i386, LLDB_INVALID_REGNUM};
322
323uint32_t RegisterContextPOSIX_x86::g_contained_st0_64[] = {lldb_st0_x86_64,
324 LLDB_INVALID_REGNUM};
325uint32_t RegisterContextPOSIX_x86::g_contained_st1_64[] = {lldb_st1_x86_64,
326 LLDB_INVALID_REGNUM};
327uint32_t RegisterContextPOSIX_x86::g_contained_st2_64[] = {lldb_st2_x86_64,
328 LLDB_INVALID_REGNUM};
329uint32_t RegisterContextPOSIX_x86::g_contained_st3_64[] = {lldb_st3_x86_64,
330 LLDB_INVALID_REGNUM};
331uint32_t RegisterContextPOSIX_x86::g_contained_st4_64[] = {lldb_st4_x86_64,
332 LLDB_INVALID_REGNUM};
333uint32_t RegisterContextPOSIX_x86::g_contained_st5_64[] = {lldb_st5_x86_64,
334 LLDB_INVALID_REGNUM};
335uint32_t RegisterContextPOSIX_x86::g_contained_st6_64[] = {lldb_st6_x86_64,
336 LLDB_INVALID_REGNUM};
337uint32_t RegisterContextPOSIX_x86::g_contained_st7_64[] = {lldb_st7_x86_64,
338 LLDB_INVALID_REGNUM};
339
340uint32_t RegisterContextPOSIX_x86::g_invalidate_st0_64[] = {
341 lldb_st0_x86_64, lldb_mm0_x86_64, LLDB_INVALID_REGNUM};
342uint32_t RegisterContextPOSIX_x86::g_invalidate_st1_64[] = {
343 lldb_st1_x86_64, lldb_mm1_x86_64, LLDB_INVALID_REGNUM};
344uint32_t RegisterContextPOSIX_x86::g_invalidate_st2_64[] = {
345 lldb_st2_x86_64, lldb_mm2_x86_64, LLDB_INVALID_REGNUM};
346uint32_t RegisterContextPOSIX_x86::g_invalidate_st3_64[] = {
347 lldb_st3_x86_64, lldb_mm3_x86_64, LLDB_INVALID_REGNUM};
348uint32_t RegisterContextPOSIX_x86::g_invalidate_st4_64[] = {
349 lldb_st4_x86_64, lldb_mm4_x86_64, LLDB_INVALID_REGNUM};
350uint32_t RegisterContextPOSIX_x86::g_invalidate_st5_64[] = {
351 lldb_st5_x86_64, lldb_mm5_x86_64, LLDB_INVALID_REGNUM};
352uint32_t RegisterContextPOSIX_x86::g_invalidate_st6_64[] = {
353 lldb_st6_x86_64, lldb_mm6_x86_64, LLDB_INVALID_REGNUM};
354uint32_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.
358enum { k_num_extended_register_sets = 1, k_num_register_sets = 3 };
359
360static 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
368static 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
376bool RegisterContextPOSIX_x86::IsGPR(unsigned reg) {
377 return reg <= GetRegInfo().last_gpr; // GPR's come first.
378}
379
380bool RegisterContextPOSIX_x86::IsFPR(unsigned reg) {
381 return (GetRegInfo().first_fpr <= reg && reg <= GetRegInfo().last_fpr);
382}
383
384bool RegisterContextPOSIX_x86::IsAVX(unsigned reg) {
385 return (GetRegInfo().first_ymm <= reg && reg <= GetRegInfo().last_ymm);
386}
387
388bool 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
396RegisterContextPOSIX_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
408RegisterContextPOSIX_x86::~RegisterContextPOSIX_x86() = default;
409
410RegisterContextPOSIX_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
420void RegisterContextPOSIX_x86::Invalidate() {}
421
422void RegisterContextPOSIX_x86::InvalidateAllRegisters() {}
423
424unsigned RegisterContextPOSIX_x86::GetRegisterOffset(unsigned reg) {
425 assert(reg < GetRegInfo().num_registers && "Invalid register number.");
426 return GetRegisterInfo()[reg].byte_offset;
427}
428
429RegInfo &RegisterContextPOSIX_x86::GetRegInfo() {
430 return GetRegInfoShared(
431 arch_type: m_register_info_up->GetTargetArchitecture().GetMachine(),
432 /*with_base=*/false);
433}
434
435unsigned RegisterContextPOSIX_x86::GetRegisterSize(unsigned reg) {
436 assert(reg < GetRegInfo().num_registers && "Invalid register number.");
437 return GetRegisterInfo()[reg].byte_size;
438}
439
440size_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
448size_t RegisterContextPOSIX_x86::GetGPRSize() {
449 return m_register_info_up->GetGPRSize();
450}
451
452size_t RegisterContextPOSIX_x86::GetFXSAVEOffset() {
453 return GetRegisterInfo()[GetRegInfo().first_fpr].byte_offset;
454}
455
456const 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
463const RegisterInfo *
464RegisterContextPOSIX_x86::GetRegisterInfoAtIndex(size_t reg) {
465 if (reg < GetRegInfo().num_registers)
466 return &GetRegisterInfo()[reg];
467 else
468 return nullptr;
469}
470
471size_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
481const 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
496const 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.
502bool 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
518bool 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
533bool 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

source code of lldb/source/Plugins/Process/Utility/RegisterContextPOSIX_x86.cpp