File: | src/gnu/usr.bin/clang/liblldbPluginProcess/../../../llvm/lldb/source/Plugins/Process/OpenBSD/NativeRegisterContextOpenBSD_x86_64.cpp |
Warning: | line 673, column 3 Value stored to 'src' is never read |
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1 | //===-- NativeRegisterContextOpenBSD_x86_64.cpp ---------------*- C++ -*-===// |
2 | // |
3 | // The LLVM Compiler Infrastructure |
4 | // |
5 | // This file is distributed under the University of Illinois Open Source |
6 | // License. See LICENSE.TXT for details. |
7 | // |
8 | //===----------------------------------------------------------------------===// |
9 | |
10 | #if defined(__x86_64__1) |
11 | |
12 | |
13 | #include <elf.h> |
14 | #include <err.h> |
15 | #include <stdint.h> |
16 | #include <stdlib.h> |
17 | |
18 | #include "NativeRegisterContextOpenBSD_x86_64.h" |
19 | |
20 | #include "lldb/Host/HostInfo.h" |
21 | #include "lldb/Utility/DataBufferHeap.h" |
22 | #include "lldb/Utility/Log.h" |
23 | #include "lldb/Utility/RegisterValue.h" |
24 | #include "lldb/Utility/Status.h" |
25 | |
26 | #include "Plugins/Process/Utility/RegisterContextOpenBSD_x86_64.h" |
27 | |
28 | // clang-format off |
29 | #include <sys/types.h> |
30 | #include <sys/sysctl.h> |
31 | #include <sys/time.h> |
32 | #include <machine/cpu.h> |
33 | // clang-format on |
34 | |
35 | using namespace lldb_private; |
36 | using namespace lldb_private::process_openbsd; |
37 | |
38 | // ---------------------------------------------------------------------------- |
39 | // Private namespace. |
40 | // ---------------------------------------------------------------------------- |
41 | |
42 | namespace { |
43 | // x86 64-bit general purpose registers. |
44 | static const uint32_t g_gpr_regnums_x86_64[] = { |
45 | lldb_rax_x86_64, lldb_rbx_x86_64, lldb_rcx_x86_64, lldb_rdx_x86_64, |
46 | lldb_rdi_x86_64, lldb_rsi_x86_64, lldb_rbp_x86_64, lldb_rsp_x86_64, |
47 | lldb_r8_x86_64, lldb_r9_x86_64, lldb_r10_x86_64, lldb_r11_x86_64, |
48 | lldb_r12_x86_64, lldb_r13_x86_64, lldb_r14_x86_64, lldb_r15_x86_64, |
49 | lldb_rip_x86_64, lldb_rflags_x86_64, lldb_cs_x86_64, lldb_fs_x86_64, |
50 | lldb_gs_x86_64, lldb_ss_x86_64, lldb_ds_x86_64, lldb_es_x86_64, |
51 | lldb_eax_x86_64, lldb_ebx_x86_64, lldb_ecx_x86_64, lldb_edx_x86_64, |
52 | lldb_edi_x86_64, lldb_esi_x86_64, lldb_ebp_x86_64, lldb_esp_x86_64, |
53 | lldb_r8d_x86_64, lldb_r9d_x86_64, lldb_r10d_x86_64, lldb_r11d_x86_64, |
54 | lldb_r12d_x86_64, lldb_r13d_x86_64, lldb_r14d_x86_64, lldb_r15d_x86_64, |
55 | lldb_ax_x86_64, lldb_bx_x86_64, lldb_cx_x86_64, lldb_dx_x86_64, |
56 | lldb_di_x86_64, lldb_si_x86_64, lldb_bp_x86_64, lldb_sp_x86_64, |
57 | lldb_r8w_x86_64, lldb_r9w_x86_64, lldb_r10w_x86_64, lldb_r11w_x86_64, |
58 | lldb_r12w_x86_64, lldb_r13w_x86_64, lldb_r14w_x86_64, lldb_r15w_x86_64, |
59 | lldb_ah_x86_64, lldb_bh_x86_64, lldb_ch_x86_64, lldb_dh_x86_64, |
60 | lldb_al_x86_64, lldb_bl_x86_64, lldb_cl_x86_64, lldb_dl_x86_64, |
61 | lldb_dil_x86_64, lldb_sil_x86_64, lldb_bpl_x86_64, lldb_spl_x86_64, |
62 | lldb_r8l_x86_64, lldb_r9l_x86_64, lldb_r10l_x86_64, lldb_r11l_x86_64, |
63 | lldb_r12l_x86_64, lldb_r13l_x86_64, lldb_r14l_x86_64, lldb_r15l_x86_64, |
64 | LLDB_INVALID_REGNUM0xffffffffU // register sets need to end with this flag |
65 | }; |
66 | static_assert( |
67 | (sizeof(g_gpr_regnums_x86_64) / sizeof(g_gpr_regnums_x86_64[0])) - 1 |
68 | == k_num_gpr_registers_x86_64, |
69 | "g_gpr_regnums_x86_64 has wrong number of register infos"); |
70 | |
71 | // x86 64-bit floating point registers. |
72 | static const uint32_t g_fpu_regnums_x86_64[] = { |
73 | lldb_fctrl_x86_64, lldb_fstat_x86_64, lldb_ftag_x86_64, |
74 | lldb_fop_x86_64, lldb_fiseg_x86_64, lldb_fioff_x86_64, |
75 | lldb_fip_x86_64, lldb_foseg_x86_64, lldb_fooff_x86_64, |
76 | lldb_fdp_x86_64, lldb_mxcsr_x86_64, lldb_mxcsrmask_x86_64, |
77 | lldb_st0_x86_64, lldb_st1_x86_64, |
78 | lldb_st2_x86_64, lldb_st3_x86_64, lldb_st4_x86_64, |
79 | lldb_st5_x86_64, lldb_st6_x86_64, lldb_st7_x86_64, |
80 | lldb_mm0_x86_64, lldb_mm1_x86_64, lldb_mm2_x86_64, |
81 | lldb_mm3_x86_64, lldb_mm4_x86_64, lldb_mm5_x86_64, |
82 | lldb_mm6_x86_64, lldb_mm7_x86_64, lldb_xmm0_x86_64, |
83 | lldb_xmm1_x86_64, lldb_xmm2_x86_64, lldb_xmm3_x86_64, |
84 | lldb_xmm4_x86_64, lldb_xmm5_x86_64, lldb_xmm6_x86_64, |
85 | lldb_xmm7_x86_64, lldb_xmm8_x86_64, lldb_xmm9_x86_64, |
86 | lldb_xmm10_x86_64, lldb_xmm11_x86_64, lldb_xmm12_x86_64, |
87 | lldb_xmm13_x86_64, lldb_xmm14_x86_64, lldb_xmm15_x86_64, |
88 | LLDB_INVALID_REGNUM0xffffffffU // register sets need to end with this flag |
89 | }; |
90 | static_assert( |
91 | (sizeof(g_fpu_regnums_x86_64) / sizeof(g_fpu_regnums_x86_64[0])) - 1 |
92 | == k_num_fpr_registers_x86_64, |
93 | "g_fpu_regnums_x86_64 has wrong number of register infos"); |
94 | |
95 | // Number of register sets provided by this context. |
96 | enum { k_num_register_sets = 2 }; |
97 | |
98 | // Register sets for x86 64-bit. |
99 | static const RegisterSet g_reg_sets_x86_64[k_num_register_sets] = { |
100 | {"General Purpose Registers", "gpr", k_num_gpr_registers_x86_64, |
101 | g_gpr_regnums_x86_64}, |
102 | {"Floating Point Registers", "fpu", k_num_fpr_registers_x86_64, |
103 | g_fpu_regnums_x86_64}, |
104 | }; |
105 | |
106 | struct x86_fpu_addr { |
107 | uint32_t offset; |
108 | uint32_t selector; |
109 | }; |
110 | |
111 | } // namespace |
112 | |
113 | #define REG_CONTEXT_SIZE(GetGPRSize() + GetFPRSize()) (GetGPRSize() + GetFPRSize()) |
114 | |
115 | std::unique_ptr<NativeRegisterContextOpenBSD> |
116 | NativeRegisterContextOpenBSD::CreateHostNativeRegisterContextOpenBSD( |
117 | const ArchSpec &target_arch, NativeThreadProtocol &native_thread) { |
118 | return std::make_unique<NativeRegisterContextOpenBSD_x86_64>(target_arch, native_thread); |
119 | } |
120 | |
121 | // ---------------------------------------------------------------------------- |
122 | // NativeRegisterContextOpenBSD_x86_64 members. |
123 | // ---------------------------------------------------------------------------- |
124 | |
125 | static RegisterInfoInterface * |
126 | CreateRegisterInfoInterface(const ArchSpec &target_arch) { |
127 | assert((HostInfo::GetArchitecture().GetAddressByteSize() == 8) &&((void)0) |
128 | "Register setting path assumes this is a 64-bit host")((void)0); |
129 | // X86_64 hosts know how to work with 64-bit and 32-bit EXEs using the x86_64 |
130 | // register context. |
131 | return new RegisterContextOpenBSD_x86_64(target_arch); |
132 | } |
133 | |
134 | NativeRegisterContextOpenBSD_x86_64::NativeRegisterContextOpenBSD_x86_64( |
135 | const ArchSpec &target_arch, NativeThreadProtocol &native_thread) |
136 | : NativeRegisterContextOpenBSD(native_thread, |
137 | CreateRegisterInfoInterface(target_arch)), |
138 | m_gpr(), m_fpr() {} |
139 | |
140 | uint32_t NativeRegisterContextOpenBSD_x86_64::GetUserRegisterCount() const { |
141 | uint32_t count = 0; |
142 | for (uint32_t set_index = 0; set_index < k_num_register_sets; ++set_index) |
143 | count += g_reg_sets_x86_64[set_index].num_registers; |
144 | return count; |
145 | } |
146 | |
147 | uint32_t NativeRegisterContextOpenBSD_x86_64::GetRegisterSetCount() const { |
148 | return k_num_register_sets; |
149 | } |
150 | |
151 | const RegisterSet * |
152 | NativeRegisterContextOpenBSD_x86_64::GetRegisterSet(uint32_t set_index) const { |
153 | switch (GetRegisterInfoInterface().GetTargetArchitecture().GetMachine()) { |
154 | case llvm::Triple::x86_64: |
155 | return &g_reg_sets_x86_64[set_index]; |
156 | default: |
157 | assert(false && "Unhandled target architecture.")((void)0); |
158 | return nullptr; |
159 | } |
160 | |
161 | return nullptr; |
162 | } |
163 | |
164 | int NativeRegisterContextOpenBSD_x86_64::GetSetForNativeRegNum( |
165 | int reg_num) const { |
166 | if (reg_num >= k_first_gpr_x86_64 && reg_num <= k_last_gpr_x86_64) |
167 | return GPRegSet; |
168 | else if (reg_num >= k_first_fpr_x86_64 && reg_num <= k_last_fpr_x86_64) |
169 | return FPRegSet; |
170 | else |
171 | return -1; |
172 | } |
173 | |
174 | int NativeRegisterContextOpenBSD_x86_64::ReadRegisterSet(uint32_t set) { |
175 | switch (set) { |
176 | case GPRegSet: |
177 | ReadGPR(); |
178 | return 0; |
179 | case FPRegSet: |
180 | ReadFPR(); |
181 | return 0; |
182 | default: |
183 | break; |
184 | } |
185 | return -1; |
186 | } |
187 | int NativeRegisterContextOpenBSD_x86_64::WriteRegisterSet(uint32_t set) { |
188 | switch (set) { |
189 | case GPRegSet: |
190 | WriteGPR(); |
191 | return 0; |
192 | case FPRegSet: |
193 | WriteFPR(); |
194 | return 0; |
195 | default: |
196 | break; |
197 | } |
198 | return -1; |
199 | } |
200 | |
201 | Status |
202 | NativeRegisterContextOpenBSD_x86_64::ReadRegister(const RegisterInfo *reg_info, |
203 | RegisterValue ®_value) { |
204 | Status error; |
205 | |
206 | if (!reg_info) { |
207 | error.SetErrorString("reg_info NULL"); |
208 | return error; |
209 | } |
210 | |
211 | const uint32_t reg = reg_info->kinds[lldb::eRegisterKindLLDB]; |
212 | if (reg == LLDB_INVALID_REGNUM0xffffffffU) { |
213 | // This is likely an internal register for lldb use only and should not be |
214 | // directly queried. |
215 | error.SetErrorStringWithFormat("register \"%s\" is an internal-only lldb " |
216 | "register, cannot read directly", |
217 | reg_info->name); |
218 | return error; |
219 | } |
220 | |
221 | int set = GetSetForNativeRegNum(reg); |
222 | if (set == -1) { |
223 | // This is likely an internal register for lldb use only and should not be |
224 | // directly queried. |
225 | error.SetErrorStringWithFormat("register \"%s\" is in unrecognized set", |
226 | reg_info->name); |
227 | return error; |
228 | } |
229 | |
230 | if (ReadRegisterSet(set) != 0) { |
231 | // This is likely an internal register for lldb use only and should not be |
232 | // directly queried. |
233 | error.SetErrorStringWithFormat( |
234 | "reading register set for register \"%s\" failed", reg_info->name); |
235 | return error; |
236 | } |
237 | |
238 | switch (reg) { |
239 | case lldb_rax_x86_64: |
240 | reg_value = (uint64_t)m_gpr.r_rax; |
241 | break; |
242 | case lldb_rbx_x86_64: |
243 | reg_value = (uint64_t)m_gpr.r_rbx; |
244 | break; |
245 | case lldb_rcx_x86_64: |
246 | reg_value = (uint64_t)m_gpr.r_rcx; |
247 | break; |
248 | case lldb_rdx_x86_64: |
249 | reg_value = (uint64_t)m_gpr.r_rdx; |
250 | break; |
251 | case lldb_rdi_x86_64: |
252 | reg_value = (uint64_t)m_gpr.r_rdi; |
253 | break; |
254 | case lldb_rsi_x86_64: |
255 | reg_value = (uint64_t)m_gpr.r_rsi; |
256 | break; |
257 | case lldb_rbp_x86_64: |
258 | reg_value = (uint64_t)m_gpr.r_rbp; |
259 | break; |
260 | case lldb_rsp_x86_64: |
261 | reg_value = (uint64_t)m_gpr.r_rsp; |
262 | break; |
263 | case lldb_r8_x86_64: |
264 | reg_value = (uint64_t)m_gpr.r_r8; |
265 | break; |
266 | case lldb_r9_x86_64: |
267 | reg_value = (uint64_t)m_gpr.r_r9; |
268 | break; |
269 | case lldb_r10_x86_64: |
270 | reg_value = (uint64_t)m_gpr.r_r10; |
271 | break; |
272 | case lldb_r11_x86_64: |
273 | reg_value = (uint64_t)m_gpr.r_r11; |
274 | break; |
275 | case lldb_r12_x86_64: |
276 | reg_value = (uint64_t)m_gpr.r_r12; |
277 | break; |
278 | case lldb_r13_x86_64: |
279 | reg_value = (uint64_t)m_gpr.r_r13; |
280 | break; |
281 | case lldb_r14_x86_64: |
282 | reg_value = (uint64_t)m_gpr.r_r14; |
283 | break; |
284 | case lldb_r15_x86_64: |
285 | reg_value = (uint64_t)m_gpr.r_r15; |
286 | break; |
287 | case lldb_rip_x86_64: |
288 | reg_value = (uint64_t)m_gpr.r_rip; |
289 | break; |
290 | case lldb_rflags_x86_64: |
291 | reg_value = (uint64_t)m_gpr.r_rflags; |
292 | break; |
293 | case lldb_cs_x86_64: |
294 | reg_value = (uint64_t)m_gpr.r_cs; |
295 | break; |
296 | case lldb_fs_x86_64: |
297 | reg_value = (uint64_t)m_gpr.r_fs; |
298 | break; |
299 | case lldb_gs_x86_64: |
300 | reg_value = (uint64_t)m_gpr.r_gs; |
301 | break; |
302 | case lldb_ss_x86_64: |
303 | reg_value = (uint64_t)m_gpr.r_ss; |
304 | break; |
305 | case lldb_ds_x86_64: |
306 | reg_value = (uint64_t)m_gpr.r_ds; |
307 | break; |
308 | case lldb_es_x86_64: |
309 | reg_value = (uint64_t)m_gpr.r_es; |
310 | break; |
311 | case lldb_fctrl_x86_64: |
312 | reg_value = (uint16_t)m_fpr.fxstate.fx_fcw; |
313 | break; |
314 | case lldb_fstat_x86_64: |
315 | reg_value = (uint16_t)m_fpr.fxstate.fx_fsw; |
316 | break; |
317 | case lldb_ftag_x86_64: |
318 | reg_value = (uint8_t)m_fpr.fxstate.fx_ftw; |
319 | break; |
320 | case lldb_fop_x86_64: |
321 | reg_value = (uint64_t)m_fpr.fxstate.fx_fop; |
322 | break; |
323 | case lldb_fioff_x86_64: |
324 | { |
325 | struct x86_fpu_addr *fp = (struct x86_fpu_addr *)&m_fpr.fxstate.fx_rip; |
326 | reg_value = fp->offset; |
327 | break; |
328 | } |
329 | case lldb_fiseg_x86_64: |
330 | { |
331 | struct x86_fpu_addr *fp = (struct x86_fpu_addr *)&m_fpr.fxstate.fx_rip; |
332 | reg_value = fp->selector; |
333 | break; |
334 | } |
335 | case lldb_fooff_x86_64: |
336 | { |
337 | struct x86_fpu_addr *fp = (struct x86_fpu_addr *)&m_fpr.fxstate.fx_rdp; |
338 | reg_value = fp->offset; |
339 | break; |
340 | } |
341 | case lldb_foseg_x86_64: |
342 | { |
343 | struct x86_fpu_addr *fp = (struct x86_fpu_addr *)&m_fpr.fxstate.fx_rdp; |
344 | reg_value = fp->selector; |
345 | break; |
346 | } |
347 | case lldb_mxcsr_x86_64: |
348 | reg_value = (uint32_t)m_fpr.fxstate.fx_mxcsr; |
349 | break; |
350 | case lldb_mxcsrmask_x86_64: |
351 | reg_value = (uint32_t)m_fpr.fxstate.fx_mxcsr_mask; |
352 | break; |
353 | case lldb_st0_x86_64: |
354 | case lldb_st1_x86_64: |
355 | case lldb_st2_x86_64: |
356 | case lldb_st3_x86_64: |
357 | case lldb_st4_x86_64: |
358 | case lldb_st5_x86_64: |
359 | case lldb_st6_x86_64: |
360 | case lldb_st7_x86_64: |
361 | reg_value.SetBytes(&m_fpr.fxstate.fx_st[reg - lldb_st0_x86_64], |
362 | reg_info->byte_size, endian::InlHostByteOrder()); |
363 | break; |
364 | case lldb_mm0_x86_64: |
365 | case lldb_mm1_x86_64: |
366 | case lldb_mm2_x86_64: |
367 | case lldb_mm3_x86_64: |
368 | case lldb_mm4_x86_64: |
369 | case lldb_mm5_x86_64: |
370 | case lldb_mm6_x86_64: |
371 | case lldb_mm7_x86_64: |
372 | reg_value.SetBytes(&m_fpr.fxstate.fx_st[reg - lldb_mm0_x86_64], |
373 | reg_info->byte_size, endian::InlHostByteOrder()); |
374 | break; |
375 | case lldb_xmm0_x86_64: |
376 | case lldb_xmm1_x86_64: |
377 | case lldb_xmm2_x86_64: |
378 | case lldb_xmm3_x86_64: |
379 | case lldb_xmm4_x86_64: |
380 | case lldb_xmm5_x86_64: |
381 | case lldb_xmm6_x86_64: |
382 | case lldb_xmm7_x86_64: |
383 | case lldb_xmm8_x86_64: |
384 | case lldb_xmm9_x86_64: |
385 | case lldb_xmm10_x86_64: |
386 | case lldb_xmm11_x86_64: |
387 | case lldb_xmm12_x86_64: |
388 | case lldb_xmm13_x86_64: |
389 | case lldb_xmm14_x86_64: |
390 | case lldb_xmm15_x86_64: |
391 | reg_value.SetBytes(&m_fpr.fxstate.fx_xmm[reg - lldb_xmm0_x86_64], |
392 | reg_info->byte_size, endian::InlHostByteOrder()); |
393 | break; |
394 | } |
395 | |
396 | return error; |
397 | } |
398 | |
399 | Status NativeRegisterContextOpenBSD_x86_64::WriteRegister( |
400 | const RegisterInfo *reg_info, const RegisterValue ®_value) { |
401 | |
402 | Status error; |
403 | |
404 | if (!reg_info) { |
405 | error.SetErrorString("reg_info NULL"); |
406 | return error; |
407 | } |
408 | |
409 | const uint32_t reg = reg_info->kinds[lldb::eRegisterKindLLDB]; |
410 | if (reg == LLDB_INVALID_REGNUM0xffffffffU) { |
411 | // This is likely an internal register for lldb use only and should not be |
412 | // directly queried. |
413 | error.SetErrorStringWithFormat("register \"%s\" is an internal-only lldb " |
414 | "register, cannot read directly", |
415 | reg_info->name); |
416 | return error; |
417 | } |
418 | |
419 | int set = GetSetForNativeRegNum(reg); |
420 | if (set == -1) { |
421 | // This is likely an internal register for lldb use only and should not be |
422 | // directly queried. |
423 | error.SetErrorStringWithFormat("register \"%s\" is in unrecognized set", |
424 | reg_info->name); |
425 | return error; |
426 | } |
427 | |
428 | if (ReadRegisterSet(set) != 0) { |
429 | // This is likely an internal register for lldb use only and should not be |
430 | // directly queried. |
431 | error.SetErrorStringWithFormat( |
432 | "reading register set for register \"%s\" failed", reg_info->name); |
433 | return error; |
434 | } |
435 | |
436 | switch (reg) { |
437 | case lldb_rax_x86_64: |
438 | m_gpr.r_rax = reg_value.GetAsUInt64(); |
439 | break; |
440 | case lldb_rbx_x86_64: |
441 | m_gpr.r_rbx = reg_value.GetAsUInt64(); |
442 | break; |
443 | case lldb_rcx_x86_64: |
444 | m_gpr.r_rcx = reg_value.GetAsUInt64(); |
445 | break; |
446 | case lldb_rdx_x86_64: |
447 | m_gpr.r_rdx = reg_value.GetAsUInt64(); |
448 | break; |
449 | case lldb_rdi_x86_64: |
450 | m_gpr.r_rdi = reg_value.GetAsUInt64(); |
451 | break; |
452 | case lldb_rsi_x86_64: |
453 | m_gpr.r_rsi = reg_value.GetAsUInt64(); |
454 | break; |
455 | case lldb_rbp_x86_64: |
456 | m_gpr.r_rbp = reg_value.GetAsUInt64(); |
457 | break; |
458 | case lldb_rsp_x86_64: |
459 | m_gpr.r_rsp = reg_value.GetAsUInt64(); |
460 | break; |
461 | case lldb_r8_x86_64: |
462 | m_gpr.r_r8 = reg_value.GetAsUInt64(); |
463 | break; |
464 | case lldb_r9_x86_64: |
465 | m_gpr.r_r9 = reg_value.GetAsUInt64(); |
466 | break; |
467 | case lldb_r10_x86_64: |
468 | m_gpr.r_r10 = reg_value.GetAsUInt64(); |
469 | break; |
470 | case lldb_r11_x86_64: |
471 | m_gpr.r_r11 = reg_value.GetAsUInt64(); |
472 | break; |
473 | case lldb_r12_x86_64: |
474 | m_gpr.r_r12 = reg_value.GetAsUInt64(); |
475 | break; |
476 | case lldb_r13_x86_64: |
477 | m_gpr.r_r13 = reg_value.GetAsUInt64(); |
478 | break; |
479 | case lldb_r14_x86_64: |
480 | m_gpr.r_r14 = reg_value.GetAsUInt64(); |
481 | break; |
482 | case lldb_r15_x86_64: |
483 | m_gpr.r_r15 = reg_value.GetAsUInt64(); |
484 | break; |
485 | case lldb_rip_x86_64: |
486 | m_gpr.r_rip = reg_value.GetAsUInt64(); |
487 | break; |
488 | case lldb_rflags_x86_64: |
489 | m_gpr.r_rflags = reg_value.GetAsUInt64(); |
490 | break; |
491 | case lldb_cs_x86_64: |
492 | m_gpr.r_cs = reg_value.GetAsUInt64(); |
493 | break; |
494 | case lldb_fs_x86_64: |
495 | m_gpr.r_fs = reg_value.GetAsUInt64(); |
496 | break; |
497 | case lldb_gs_x86_64: |
498 | m_gpr.r_gs = reg_value.GetAsUInt64(); |
499 | break; |
500 | case lldb_ss_x86_64: |
501 | m_gpr.r_ss = reg_value.GetAsUInt64(); |
502 | break; |
503 | case lldb_ds_x86_64: |
504 | m_gpr.r_ds = reg_value.GetAsUInt64(); |
505 | break; |
506 | case lldb_es_x86_64: |
507 | m_gpr.r_es = reg_value.GetAsUInt64(); |
508 | break; |
509 | case lldb_fctrl_x86_64: |
510 | m_fpr.fxstate.fx_fcw = reg_value.GetAsUInt16(); |
511 | break; |
512 | case lldb_fstat_x86_64: |
513 | m_fpr.fxstate.fx_fsw = reg_value.GetAsUInt16(); |
514 | break; |
515 | case lldb_ftag_x86_64: |
516 | m_fpr.fxstate.fx_ftw = reg_value.GetAsUInt8(); |
517 | break; |
518 | case lldb_fop_x86_64: |
519 | m_fpr.fxstate.fx_fop = reg_value.GetAsUInt16(); |
520 | break; |
521 | case lldb_fioff_x86_64: |
522 | { |
523 | struct x86_fpu_addr *fp = (struct x86_fpu_addr *)&m_fpr.fxstate.fx_rip; |
524 | fp->offset = reg_value.GetAsUInt32(); |
525 | break; |
526 | } |
527 | case lldb_fiseg_x86_64: |
528 | { |
529 | struct x86_fpu_addr *fp = (struct x86_fpu_addr *)&m_fpr.fxstate.fx_rip; |
530 | fp->selector = reg_value.GetAsUInt32(); |
531 | break; |
532 | } |
533 | case lldb_fooff_x86_64: |
534 | { |
535 | struct x86_fpu_addr *fp = (struct x86_fpu_addr *)&m_fpr.fxstate.fx_rdp; |
536 | fp->offset = reg_value.GetAsUInt32(); |
537 | break; |
538 | } |
539 | case lldb_foseg_x86_64: |
540 | { |
541 | struct x86_fpu_addr *fp = (struct x86_fpu_addr *)&m_fpr.fxstate.fx_rdp; |
542 | fp->selector = reg_value.GetAsUInt32(); |
543 | break; |
544 | } |
545 | case lldb_mxcsr_x86_64: |
546 | m_fpr.fxstate.fx_mxcsr = reg_value.GetAsUInt32(); |
547 | break; |
548 | case lldb_mxcsrmask_x86_64: |
549 | m_fpr.fxstate.fx_mxcsr_mask = reg_value.GetAsUInt32(); |
550 | break; |
551 | case lldb_st0_x86_64: |
552 | case lldb_st1_x86_64: |
553 | case lldb_st2_x86_64: |
554 | case lldb_st3_x86_64: |
555 | case lldb_st4_x86_64: |
556 | case lldb_st5_x86_64: |
557 | case lldb_st6_x86_64: |
558 | case lldb_st7_x86_64: |
559 | ::memcpy(&m_fpr.fxstate.fx_st[reg - lldb_st0_x86_64], |
560 | reg_value.GetBytes(), reg_value.GetByteSize()); |
561 | break; |
562 | case lldb_mm0_x86_64: |
563 | case lldb_mm1_x86_64: |
564 | case lldb_mm2_x86_64: |
565 | case lldb_mm3_x86_64: |
566 | case lldb_mm4_x86_64: |
567 | case lldb_mm5_x86_64: |
568 | case lldb_mm6_x86_64: |
569 | case lldb_mm7_x86_64: |
570 | ::memcpy(&m_fpr.fxstate.fx_st[reg - lldb_mm0_x86_64], |
571 | reg_value.GetBytes(), reg_value.GetByteSize()); |
572 | break; |
573 | case lldb_xmm0_x86_64: |
574 | case lldb_xmm1_x86_64: |
575 | case lldb_xmm2_x86_64: |
576 | case lldb_xmm3_x86_64: |
577 | case lldb_xmm4_x86_64: |
578 | case lldb_xmm5_x86_64: |
579 | case lldb_xmm6_x86_64: |
580 | case lldb_xmm7_x86_64: |
581 | case lldb_xmm8_x86_64: |
582 | case lldb_xmm9_x86_64: |
583 | case lldb_xmm10_x86_64: |
584 | case lldb_xmm11_x86_64: |
585 | case lldb_xmm12_x86_64: |
586 | case lldb_xmm13_x86_64: |
587 | case lldb_xmm14_x86_64: |
588 | case lldb_xmm15_x86_64: |
589 | ::memcpy(&m_fpr.fxstate.fx_xmm[reg - lldb_xmm0_x86_64], |
590 | reg_value.GetBytes(), reg_value.GetByteSize()); |
591 | break; |
592 | } |
593 | |
594 | if (WriteRegisterSet(set) != 0) |
595 | error.SetErrorStringWithFormat("failed to write register set"); |
596 | |
597 | return error; |
598 | } |
599 | |
600 | Status NativeRegisterContextOpenBSD_x86_64::ReadAllRegisterValues( |
601 | lldb::DataBufferSP &data_sp) { |
602 | Status error; |
603 | |
604 | data_sp.reset(new DataBufferHeap(REG_CONTEXT_SIZE(GetGPRSize() + GetFPRSize()), 0)); |
605 | if (!data_sp) { |
606 | error.SetErrorStringWithFormat( |
607 | "failed to allocate DataBufferHeap instance of size %zu", |
608 | REG_CONTEXT_SIZE(GetGPRSize() + GetFPRSize())); |
609 | return error; |
610 | } |
611 | |
612 | uint8_t *dst = data_sp->GetBytes(); |
613 | if (dst == nullptr) { |
614 | error.SetErrorStringWithFormat("DataBufferHeap instance of size %zu" |
615 | " returned a null pointer", |
616 | REG_CONTEXT_SIZE(GetGPRSize() + GetFPRSize())); |
617 | return error; |
618 | } |
619 | |
620 | error = ReadGPR(); |
621 | if (error.Fail()) |
622 | return error; |
623 | ::memcpy(dst, &m_gpr, GetGPRSize()); |
624 | dst += GetGPRSize(); |
625 | |
626 | error = ReadFPR(); |
627 | if (error.Fail()) |
628 | return error; |
629 | ::memcpy(dst, &m_fpr, GetFPRSize()); |
630 | dst += GetFPRSize(); |
631 | |
632 | return error; |
633 | } |
634 | |
635 | Status NativeRegisterContextOpenBSD_x86_64::WriteAllRegisterValues( |
636 | const lldb::DataBufferSP &data_sp) { |
637 | Status error; |
638 | |
639 | if (!data_sp) { |
640 | error.SetErrorStringWithFormat( |
641 | "NativeRegisterContextOpenBSD_x86_64::%s invalid data_sp provided", |
642 | __FUNCTION__); |
643 | return error; |
644 | } |
645 | |
646 | if (data_sp->GetByteSize() != REG_CONTEXT_SIZE(GetGPRSize() + GetFPRSize())) { |
647 | error.SetErrorStringWithFormat( |
648 | "NativeRegisterContextOpenBSD_x86_64::%s data_sp contained mismatched " |
649 | "data size, expected %zu, actual %llu", |
650 | __FUNCTION__, REG_CONTEXT_SIZE(GetGPRSize() + GetFPRSize()), data_sp->GetByteSize()); |
651 | return error; |
652 | } |
653 | |
654 | uint8_t *src = data_sp->GetBytes(); |
655 | if (src == nullptr) { |
656 | error.SetErrorStringWithFormat("NativeRegisterContextOpenBSD_x86_64::%s " |
657 | "DataBuffer::GetBytes() returned a null " |
658 | "pointer", |
659 | __FUNCTION__); |
660 | return error; |
661 | } |
662 | |
663 | ::memcpy(&m_gpr, src, GetGPRSize()); |
664 | error = WriteGPR(); |
665 | if (error.Fail()) |
666 | return error; |
667 | src += GetGPRSize(); |
668 | |
669 | ::memcpy(&m_fpr, src, GetFPRSize()); |
670 | error = WriteFPR(); |
671 | if (error.Fail()) |
672 | return error; |
673 | src += GetFPRSize(); |
Value stored to 'src' is never read | |
674 | |
675 | return error; |
676 | } |
677 | #endif |