1 //===-- ABISysV_x86_64.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 //===----------------------------------------------------------------------===//
10 #include "ABISysV_x86_64.h"
12 #include "lldb/Core/ConstString.h"
13 #include "lldb/Core/DataExtractor.h"
14 #include "lldb/Core/Error.h"
15 #include "lldb/Core/Log.h"
16 #include "lldb/Core/Module.h"
17 #include "lldb/Core/PluginManager.h"
18 #include "lldb/Core/RegisterValue.h"
19 #include "lldb/Core/Value.h"
20 #include "lldb/Core/ValueObjectConstResult.h"
21 #include "lldb/Core/ValueObjectRegister.h"
22 #include "lldb/Core/ValueObjectMemory.h"
23 #include "lldb/Symbol/ClangASTContext.h"
24 #include "lldb/Symbol/UnwindPlan.h"
25 #include "lldb/Target/Target.h"
26 #include "lldb/Target/Process.h"
27 #include "lldb/Target/RegisterContext.h"
28 #include "lldb/Target/StackFrame.h"
29 #include "lldb/Target/Thread.h"
31 #include "llvm/ADT/STLExtras.h"
32 #include "llvm/ADT/Triple.h"
35 using namespace lldb_private;
37 enum gcc_dwarf_regnums
132 gdb_fctrl = 32, gdb_fcw = gdb_fctrl,
133 gdb_fstat = 33, gdb_fsw = gdb_fstat,
134 gdb_ftag = 34, gdb_ftw = gdb_ftag,
135 gdb_fiseg = 35, gdb_fpu_cs = gdb_fiseg,
136 gdb_fioff = 36, gdb_ip = gdb_fioff,
137 gdb_foseg = 37, gdb_fpu_ds = gdb_foseg,
138 gdb_fooff = 38, gdb_dp = gdb_fooff,
176 static RegisterInfo g_register_infos[] =
178 // NAME ALT SZ OFF ENCODING FORMAT COMPILER DWARF GENERIC GDB LLDB NATIVE VALUE REGS INVALIDATE REGS
179 // ======== ======= == === ============= =================== ======================= ===================== =========================== ===================== ====================== ========== ===============
180 { "rax" , NULL, 8, 0, eEncodingUint , eFormatHex , { gcc_dwarf_rax , gcc_dwarf_rax , LLDB_INVALID_REGNUM , gdb_rax , LLDB_INVALID_REGNUM }, NULL, NULL},
181 { "rbx" , NULL, 8, 0, eEncodingUint , eFormatHex , { gcc_dwarf_rbx , gcc_dwarf_rbx , LLDB_INVALID_REGNUM , gdb_rbx , LLDB_INVALID_REGNUM }, NULL, NULL},
182 { "rcx" , "arg4", 8, 0, eEncodingUint , eFormatHex , { gcc_dwarf_rcx , gcc_dwarf_rcx , LLDB_REGNUM_GENERIC_ARG4 , gdb_rcx , LLDB_INVALID_REGNUM }, NULL, NULL},
183 { "rdx" , "arg3", 8, 0, eEncodingUint , eFormatHex , { gcc_dwarf_rdx , gcc_dwarf_rdx , LLDB_REGNUM_GENERIC_ARG3 , gdb_rdx , LLDB_INVALID_REGNUM }, NULL, NULL},
184 { "rsi" , "arg2", 8, 0, eEncodingUint , eFormatHex , { gcc_dwarf_rsi , gcc_dwarf_rsi , LLDB_REGNUM_GENERIC_ARG2 , gdb_rsi , LLDB_INVALID_REGNUM }, NULL, NULL},
185 { "rdi" , "arg1", 8, 0, eEncodingUint , eFormatHex , { gcc_dwarf_rdi , gcc_dwarf_rdi , LLDB_REGNUM_GENERIC_ARG1 , gdb_rdi , LLDB_INVALID_REGNUM }, NULL, NULL},
186 { "rbp" , "fp", 8, 0, eEncodingUint , eFormatHex , { gcc_dwarf_rbp , gcc_dwarf_rbp , LLDB_REGNUM_GENERIC_FP , gdb_rbp , LLDB_INVALID_REGNUM }, NULL, NULL},
187 { "rsp" , "sp", 8, 0, eEncodingUint , eFormatHex , { gcc_dwarf_rsp , gcc_dwarf_rsp , LLDB_REGNUM_GENERIC_SP , gdb_rsp , LLDB_INVALID_REGNUM }, NULL, NULL},
188 { "r8" , "arg5", 8, 0, eEncodingUint , eFormatHex , { gcc_dwarf_r8 , gcc_dwarf_r8 , LLDB_REGNUM_GENERIC_ARG5 , gdb_r8 , LLDB_INVALID_REGNUM }, NULL, NULL},
189 { "r9" , "arg6", 8, 0, eEncodingUint , eFormatHex , { gcc_dwarf_r9 , gcc_dwarf_r9 , LLDB_REGNUM_GENERIC_ARG6 , gdb_r9 , LLDB_INVALID_REGNUM }, NULL, NULL},
190 { "r10" , NULL, 8, 0, eEncodingUint , eFormatHex , { gcc_dwarf_r10 , gcc_dwarf_r10 , LLDB_INVALID_REGNUM , gdb_r10 , LLDB_INVALID_REGNUM }, NULL, NULL},
191 { "r11" , NULL, 8, 0, eEncodingUint , eFormatHex , { gcc_dwarf_r11 , gcc_dwarf_r11 , LLDB_INVALID_REGNUM , gdb_r11 , LLDB_INVALID_REGNUM }, NULL, NULL},
192 { "r12" , NULL, 8, 0, eEncodingUint , eFormatHex , { gcc_dwarf_r12 , gcc_dwarf_r12 , LLDB_INVALID_REGNUM , gdb_r12 , LLDB_INVALID_REGNUM }, NULL, NULL},
193 { "r13" , NULL, 8, 0, eEncodingUint , eFormatHex , { gcc_dwarf_r13 , gcc_dwarf_r13 , LLDB_INVALID_REGNUM , gdb_r13 , LLDB_INVALID_REGNUM }, NULL, NULL},
194 { "r14" , NULL, 8, 0, eEncodingUint , eFormatHex , { gcc_dwarf_r14 , gcc_dwarf_r14 , LLDB_INVALID_REGNUM , gdb_r14 , LLDB_INVALID_REGNUM }, NULL, NULL},
195 { "r15" , NULL, 8, 0, eEncodingUint , eFormatHex , { gcc_dwarf_r15 , gcc_dwarf_r15 , LLDB_INVALID_REGNUM , gdb_r15 , LLDB_INVALID_REGNUM }, NULL, NULL},
196 { "rip" , "pc", 8, 0, eEncodingUint , eFormatHex , { gcc_dwarf_rip , gcc_dwarf_rip , LLDB_REGNUM_GENERIC_PC , gdb_rip , LLDB_INVALID_REGNUM }, NULL, NULL},
197 { "rflags", NULL, 4, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , LLDB_REGNUM_GENERIC_FLAGS , gdb_rflags , LLDB_INVALID_REGNUM }, NULL, NULL},
198 { "cs" , NULL, 4, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , gdb_cs , LLDB_INVALID_REGNUM }, NULL, NULL},
199 { "ss" , NULL, 4, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , gdb_ss , LLDB_INVALID_REGNUM }, NULL, NULL},
200 { "ds" , NULL, 4, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , gdb_ds , LLDB_INVALID_REGNUM }, NULL, NULL},
201 { "es" , NULL, 4, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , gdb_es , LLDB_INVALID_REGNUM }, NULL, NULL},
202 { "fs" , NULL, 4, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , gdb_fs , LLDB_INVALID_REGNUM }, NULL, NULL},
203 { "gs" , NULL, 4, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , gdb_gs , LLDB_INVALID_REGNUM }, NULL, NULL},
204 { "stmm0" , NULL, 10, 0, eEncodingVector, eFormatVectorOfUInt8, { gcc_dwarf_stmm0 , gcc_dwarf_stmm0 , LLDB_INVALID_REGNUM , gdb_stmm0 , LLDB_INVALID_REGNUM }, NULL, NULL},
205 { "stmm1" , NULL, 10, 0, eEncodingVector, eFormatVectorOfUInt8, { gcc_dwarf_stmm1 , gcc_dwarf_stmm1 , LLDB_INVALID_REGNUM , gdb_stmm1 , LLDB_INVALID_REGNUM }, NULL, NULL},
206 { "stmm2" , NULL, 10, 0, eEncodingVector, eFormatVectorOfUInt8, { gcc_dwarf_stmm2 , gcc_dwarf_stmm2 , LLDB_INVALID_REGNUM , gdb_stmm2 , LLDB_INVALID_REGNUM }, NULL, NULL},
207 { "stmm3" , NULL, 10, 0, eEncodingVector, eFormatVectorOfUInt8, { gcc_dwarf_stmm3 , gcc_dwarf_stmm3 , LLDB_INVALID_REGNUM , gdb_stmm3 , LLDB_INVALID_REGNUM }, NULL, NULL},
208 { "stmm4" , NULL, 10, 0, eEncodingVector, eFormatVectorOfUInt8, { gcc_dwarf_stmm4 , gcc_dwarf_stmm4 , LLDB_INVALID_REGNUM , gdb_stmm4 , LLDB_INVALID_REGNUM }, NULL, NULL},
209 { "stmm5" , NULL, 10, 0, eEncodingVector, eFormatVectorOfUInt8, { gcc_dwarf_stmm5 , gcc_dwarf_stmm5 , LLDB_INVALID_REGNUM , gdb_stmm5 , LLDB_INVALID_REGNUM }, NULL, NULL},
210 { "stmm6" , NULL, 10, 0, eEncodingVector, eFormatVectorOfUInt8, { gcc_dwarf_stmm6 , gcc_dwarf_stmm6 , LLDB_INVALID_REGNUM , gdb_stmm6 , LLDB_INVALID_REGNUM }, NULL, NULL},
211 { "stmm7" , NULL, 10, 0, eEncodingVector, eFormatVectorOfUInt8, { gcc_dwarf_stmm7 , gcc_dwarf_stmm7 , LLDB_INVALID_REGNUM , gdb_stmm7 , LLDB_INVALID_REGNUM }, NULL, NULL},
212 { "fctrl" , NULL, 4, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , gdb_fctrl , LLDB_INVALID_REGNUM }, NULL, NULL},
213 { "fstat" , NULL, 4, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , gdb_fstat , LLDB_INVALID_REGNUM }, NULL, NULL},
214 { "ftag" , NULL, 4, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , gdb_ftag , LLDB_INVALID_REGNUM }, NULL, NULL},
215 { "fiseg" , NULL, 4, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , gdb_fiseg , LLDB_INVALID_REGNUM }, NULL, NULL},
216 { "fioff" , NULL, 4, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , gdb_fioff , LLDB_INVALID_REGNUM }, NULL, NULL},
217 { "foseg" , NULL, 4, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , gdb_foseg , LLDB_INVALID_REGNUM }, NULL, NULL},
218 { "fooff" , NULL, 4, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , gdb_fooff , LLDB_INVALID_REGNUM }, NULL, NULL},
219 { "fop" , NULL, 4, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , gdb_fop , LLDB_INVALID_REGNUM }, NULL, NULL},
220 { "xmm0" , NULL, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { gcc_dwarf_xmm0 , gcc_dwarf_xmm0 , LLDB_INVALID_REGNUM , gdb_xmm0 , LLDB_INVALID_REGNUM }, NULL, NULL},
221 { "xmm1" , NULL, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { gcc_dwarf_xmm1 , gcc_dwarf_xmm1 , LLDB_INVALID_REGNUM , gdb_xmm1 , LLDB_INVALID_REGNUM }, NULL, NULL},
222 { "xmm2" , NULL, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { gcc_dwarf_xmm2 , gcc_dwarf_xmm2 , LLDB_INVALID_REGNUM , gdb_xmm2 , LLDB_INVALID_REGNUM }, NULL, NULL},
223 { "xmm3" , NULL, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { gcc_dwarf_xmm3 , gcc_dwarf_xmm3 , LLDB_INVALID_REGNUM , gdb_xmm3 , LLDB_INVALID_REGNUM }, NULL, NULL},
224 { "xmm4" , NULL, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { gcc_dwarf_xmm4 , gcc_dwarf_xmm4 , LLDB_INVALID_REGNUM , gdb_xmm4 , LLDB_INVALID_REGNUM }, NULL, NULL},
225 { "xmm5" , NULL, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { gcc_dwarf_xmm5 , gcc_dwarf_xmm5 , LLDB_INVALID_REGNUM , gdb_xmm5 , LLDB_INVALID_REGNUM }, NULL, NULL},
226 { "xmm6" , NULL, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { gcc_dwarf_xmm6 , gcc_dwarf_xmm6 , LLDB_INVALID_REGNUM , gdb_xmm6 , LLDB_INVALID_REGNUM }, NULL, NULL},
227 { "xmm7" , NULL, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { gcc_dwarf_xmm7 , gcc_dwarf_xmm7 , LLDB_INVALID_REGNUM , gdb_xmm7 , LLDB_INVALID_REGNUM }, NULL, NULL},
228 { "xmm8" , NULL, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { gcc_dwarf_xmm8 , gcc_dwarf_xmm8 , LLDB_INVALID_REGNUM , gdb_xmm8 , LLDB_INVALID_REGNUM }, NULL, NULL},
229 { "xmm9" , NULL, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { gcc_dwarf_xmm9 , gcc_dwarf_xmm9 , LLDB_INVALID_REGNUM , gdb_xmm9 , LLDB_INVALID_REGNUM }, NULL, NULL},
230 { "xmm10" , NULL, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { gcc_dwarf_xmm10 , gcc_dwarf_xmm10 , LLDB_INVALID_REGNUM , gdb_xmm10 , LLDB_INVALID_REGNUM }, NULL, NULL},
231 { "xmm11" , NULL, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { gcc_dwarf_xmm11 , gcc_dwarf_xmm11 , LLDB_INVALID_REGNUM , gdb_xmm11 , LLDB_INVALID_REGNUM }, NULL, NULL},
232 { "xmm12" , NULL, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { gcc_dwarf_xmm12 , gcc_dwarf_xmm12 , LLDB_INVALID_REGNUM , gdb_xmm12 , LLDB_INVALID_REGNUM }, NULL, NULL},
233 { "xmm13" , NULL, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { gcc_dwarf_xmm13 , gcc_dwarf_xmm13 , LLDB_INVALID_REGNUM , gdb_xmm13 , LLDB_INVALID_REGNUM }, NULL, NULL},
234 { "xmm14" , NULL, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { gcc_dwarf_xmm14 , gcc_dwarf_xmm14 , LLDB_INVALID_REGNUM , gdb_xmm14 , LLDB_INVALID_REGNUM }, NULL, NULL},
235 { "xmm15" , NULL, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { gcc_dwarf_xmm15 , gcc_dwarf_xmm15 , LLDB_INVALID_REGNUM , gdb_xmm15 , LLDB_INVALID_REGNUM }, NULL, NULL},
236 { "mxcsr" , NULL, 4, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , gdb_mxcsr , LLDB_INVALID_REGNUM }, NULL, NULL},
237 { "ymm0" , NULL, 32, 0, eEncodingVector, eFormatVectorOfUInt8, { gcc_dwarf_ymm0 , gcc_dwarf_ymm0 , LLDB_INVALID_REGNUM , gdb_ymm0 , LLDB_INVALID_REGNUM }, NULL, NULL},
238 { "ymm1" , NULL, 32, 0, eEncodingVector, eFormatVectorOfUInt8, { gcc_dwarf_ymm1 , gcc_dwarf_ymm1 , LLDB_INVALID_REGNUM , gdb_ymm1 , LLDB_INVALID_REGNUM }, NULL, NULL},
239 { "ymm2" , NULL, 32, 0, eEncodingVector, eFormatVectorOfUInt8, { gcc_dwarf_ymm2 , gcc_dwarf_ymm2 , LLDB_INVALID_REGNUM , gdb_ymm2 , LLDB_INVALID_REGNUM }, NULL, NULL},
240 { "ymm3" , NULL, 32, 0, eEncodingVector, eFormatVectorOfUInt8, { gcc_dwarf_ymm3 , gcc_dwarf_ymm3 , LLDB_INVALID_REGNUM , gdb_ymm3 , LLDB_INVALID_REGNUM }, NULL, NULL},
241 { "ymm4" , NULL, 32, 0, eEncodingVector, eFormatVectorOfUInt8, { gcc_dwarf_ymm4 , gcc_dwarf_ymm4 , LLDB_INVALID_REGNUM , gdb_ymm4 , LLDB_INVALID_REGNUM }, NULL, NULL},
242 { "ymm5" , NULL, 32, 0, eEncodingVector, eFormatVectorOfUInt8, { gcc_dwarf_ymm5 , gcc_dwarf_ymm5 , LLDB_INVALID_REGNUM , gdb_ymm5 , LLDB_INVALID_REGNUM }, NULL, NULL},
243 { "ymm6" , NULL, 32, 0, eEncodingVector, eFormatVectorOfUInt8, { gcc_dwarf_ymm6 , gcc_dwarf_ymm6 , LLDB_INVALID_REGNUM , gdb_ymm6 , LLDB_INVALID_REGNUM }, NULL, NULL},
244 { "ymm7" , NULL, 32, 0, eEncodingVector, eFormatVectorOfUInt8, { gcc_dwarf_ymm7 , gcc_dwarf_ymm7 , LLDB_INVALID_REGNUM , gdb_ymm7 , LLDB_INVALID_REGNUM }, NULL, NULL},
245 { "ymm8" , NULL, 32, 0, eEncodingVector, eFormatVectorOfUInt8, { gcc_dwarf_ymm8 , gcc_dwarf_ymm8 , LLDB_INVALID_REGNUM , gdb_ymm8 , LLDB_INVALID_REGNUM }, NULL, NULL},
246 { "ymm9" , NULL, 32, 0, eEncodingVector, eFormatVectorOfUInt8, { gcc_dwarf_ymm9 , gcc_dwarf_ymm9 , LLDB_INVALID_REGNUM , gdb_ymm9 , LLDB_INVALID_REGNUM }, NULL, NULL},
247 { "ymm10" , NULL, 32, 0, eEncodingVector, eFormatVectorOfUInt8, { gcc_dwarf_ymm10 , gcc_dwarf_ymm10 , LLDB_INVALID_REGNUM , gdb_ymm10 , LLDB_INVALID_REGNUM }, NULL, NULL},
248 { "ymm11" , NULL, 32, 0, eEncodingVector, eFormatVectorOfUInt8, { gcc_dwarf_ymm11 , gcc_dwarf_ymm11 , LLDB_INVALID_REGNUM , gdb_ymm11 , LLDB_INVALID_REGNUM }, NULL, NULL},
249 { "ymm12" , NULL, 32, 0, eEncodingVector, eFormatVectorOfUInt8, { gcc_dwarf_ymm12 , gcc_dwarf_ymm12 , LLDB_INVALID_REGNUM , gdb_ymm12 , LLDB_INVALID_REGNUM }, NULL, NULL},
250 { "ymm13" , NULL, 32, 0, eEncodingVector, eFormatVectorOfUInt8, { gcc_dwarf_ymm13 , gcc_dwarf_ymm13 , LLDB_INVALID_REGNUM , gdb_ymm13 , LLDB_INVALID_REGNUM }, NULL, NULL},
251 { "ymm14" , NULL, 32, 0, eEncodingVector, eFormatVectorOfUInt8, { gcc_dwarf_ymm14 , gcc_dwarf_ymm14 , LLDB_INVALID_REGNUM , gdb_ymm14 , LLDB_INVALID_REGNUM }, NULL, NULL},
252 { "ymm15" , NULL, 32, 0, eEncodingVector, eFormatVectorOfUInt8, { gcc_dwarf_ymm15 , gcc_dwarf_ymm15 , LLDB_INVALID_REGNUM , gdb_ymm15 , LLDB_INVALID_REGNUM }, NULL, NULL}
255 static const uint32_t k_num_register_infos = llvm::array_lengthof(g_register_infos);
256 static bool g_register_info_names_constified = false;
258 const lldb_private::RegisterInfo *
259 ABISysV_x86_64::GetRegisterInfoArray (uint32_t &count)
261 // Make the C-string names and alt_names for the register infos into const
262 // C-string values by having the ConstString unique the names in the global
263 // constant C-string pool.
264 if (!g_register_info_names_constified)
266 g_register_info_names_constified = true;
267 for (uint32_t i=0; i<k_num_register_infos; ++i)
269 if (g_register_infos[i].name)
270 g_register_infos[i].name = ConstString(g_register_infos[i].name).GetCString();
271 if (g_register_infos[i].alt_name)
272 g_register_infos[i].alt_name = ConstString(g_register_infos[i].alt_name).GetCString();
275 count = k_num_register_infos;
276 return g_register_infos;
281 ABISysV_x86_64::GetRedZoneSize () const
286 //------------------------------------------------------------------
288 //------------------------------------------------------------------
290 ABISysV_x86_64::CreateInstance (const ArchSpec &arch)
292 static ABISP g_abi_sp;
293 if (arch.GetTriple().getArch() == llvm::Triple::x86_64)
296 g_abi_sp.reset (new ABISysV_x86_64);
303 ABISysV_x86_64::PrepareTrivialCall (Thread &thread,
307 llvm::ArrayRef<addr_t> args) const
309 Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
314 s.Printf("ABISysV_x86_64::PrepareTrivialCall (tid = 0x%" PRIx64 ", sp = 0x%" PRIx64 ", func_addr = 0x%" PRIx64 ", return_addr = 0x%" PRIx64,
318 (uint64_t)return_addr);
320 for (size_t i = 0; i < args.size(); ++i)
321 s.Printf (", arg%zd = 0x%" PRIx64, i + 1, args[i]);
323 log->PutCString(s.GetString().c_str());
326 RegisterContext *reg_ctx = thread.GetRegisterContext().get();
330 const RegisterInfo *reg_info = NULL;
332 if (args.size() > 6) // TODO handle more than 6 arguments
335 for (size_t i = 0; i < args.size(); ++i)
337 reg_info = reg_ctx->GetRegisterInfo(eRegisterKindGeneric, LLDB_REGNUM_GENERIC_ARG1 + i);
339 log->Printf("About to write arg%zd (0x%" PRIx64 ") into %s", i + 1, args[i], reg_info->name);
340 if (!reg_ctx->WriteRegisterFromUnsigned(reg_info, args[i]))
344 // First, align the SP
347 log->Printf("16-byte aligning SP: 0x%" PRIx64 " to 0x%" PRIx64, (uint64_t)sp, (uint64_t)(sp & ~0xfull));
349 sp &= ~(0xfull); // 16-byte alignment
354 const RegisterInfo *pc_reg_info = reg_ctx->GetRegisterInfo (eRegisterKindGeneric, LLDB_REGNUM_GENERIC_PC);
355 const RegisterInfo *sp_reg_info = reg_ctx->GetRegisterInfo (eRegisterKindGeneric, LLDB_REGNUM_GENERIC_SP);
356 ProcessSP process_sp (thread.GetProcess());
358 RegisterValue reg_value;
361 // This code adds an extra frame so that we don't lose the function that we came from
362 // by pushing the PC and the FP and then writing the current FP to point to the FP value
363 // we just pushed. It is disabled for now until the stack backtracing code can be debugged.
366 const RegisterInfo *fp_reg_info = reg_ctx->GetRegisterInfo (eRegisterKindGeneric, LLDB_REGNUM_GENERIC_FP);
367 if (reg_ctx->ReadRegister(pc_reg_info, reg_value))
370 log->Printf("Pushing the current PC onto the stack: 0x%" PRIx64 ": 0x%" PRIx64, (uint64_t)sp, reg_value.GetAsUInt64());
372 if (!process_sp->WritePointerToMemory(sp, reg_value.GetAsUInt64(), error))
378 if (reg_ctx->ReadRegister(fp_reg_info, reg_value))
381 log->Printf("Pushing the current FP onto the stack: 0x%" PRIx64 ": 0x%" PRIx64, (uint64_t)sp, reg_value.GetAsUInt64());
383 if (!process_sp->WritePointerToMemory(sp, reg_value.GetAsUInt64(), error))
386 // Setup FP backchain
387 reg_value.SetUInt64 (sp);
390 log->Printf("Writing FP: 0x%" PRIx64 " (for FP backchain)", reg_value.GetAsUInt64());
392 if (!reg_ctx->WriteRegister(fp_reg_info, reg_value))
402 log->Printf("Pushing the return address onto the stack: 0x%" PRIx64 ": 0x%" PRIx64, (uint64_t)sp, (uint64_t)return_addr);
404 // Save return address onto the stack
405 if (!process_sp->WritePointerToMemory(sp, return_addr, error))
408 // %rsp is set to the actual stack value.
411 log->Printf("Writing SP: 0x%" PRIx64, (uint64_t)sp);
413 if (!reg_ctx->WriteRegisterFromUnsigned (sp_reg_info, sp))
416 // %rip is set to the address of the called function.
419 log->Printf("Writing IP: 0x%" PRIx64, (uint64_t)func_addr);
421 if (!reg_ctx->WriteRegisterFromUnsigned (pc_reg_info, func_addr))
427 static bool ReadIntegerArgument(Scalar &scalar,
428 unsigned int bit_width,
431 uint32_t *argument_register_ids,
432 unsigned int ¤t_argument_register,
433 addr_t ¤t_stack_argument)
436 return false; // Scalar can't hold large integer arguments
438 if (current_argument_register < 6)
440 scalar = thread.GetRegisterContext()->ReadRegisterAsUnsigned(argument_register_ids[current_argument_register], 0);
441 current_argument_register++;
443 scalar.SignExtend (bit_width);
447 uint32_t byte_size = (bit_width + (8-1))/8;
449 if (thread.GetProcess()->ReadScalarIntegerFromMemory(current_stack_argument, byte_size, is_signed, scalar, error))
451 current_stack_argument += byte_size;
460 ABISysV_x86_64::GetArgumentValues (Thread &thread,
461 ValueList &values) const
463 unsigned int num_values = values.GetSize();
464 unsigned int value_index;
466 // Extract the register context so we can read arguments from registers
468 RegisterContext *reg_ctx = thread.GetRegisterContext().get();
473 // Get the pointer to the first stack argument so we have a place to start
476 addr_t sp = reg_ctx->GetSP(0);
481 addr_t current_stack_argument = sp + 8; // jump over return address
483 uint32_t argument_register_ids[6];
485 argument_register_ids[0] = reg_ctx->GetRegisterInfo (eRegisterKindGeneric, LLDB_REGNUM_GENERIC_ARG1)->kinds[eRegisterKindLLDB];
486 argument_register_ids[1] = reg_ctx->GetRegisterInfo (eRegisterKindGeneric, LLDB_REGNUM_GENERIC_ARG2)->kinds[eRegisterKindLLDB];
487 argument_register_ids[2] = reg_ctx->GetRegisterInfo (eRegisterKindGeneric, LLDB_REGNUM_GENERIC_ARG3)->kinds[eRegisterKindLLDB];
488 argument_register_ids[3] = reg_ctx->GetRegisterInfo (eRegisterKindGeneric, LLDB_REGNUM_GENERIC_ARG4)->kinds[eRegisterKindLLDB];
489 argument_register_ids[4] = reg_ctx->GetRegisterInfo (eRegisterKindGeneric, LLDB_REGNUM_GENERIC_ARG5)->kinds[eRegisterKindLLDB];
490 argument_register_ids[5] = reg_ctx->GetRegisterInfo (eRegisterKindGeneric, LLDB_REGNUM_GENERIC_ARG6)->kinds[eRegisterKindLLDB];
492 unsigned int current_argument_register = 0;
494 for (value_index = 0;
495 value_index < num_values;
498 Value *value = values.GetValueAtIndex(value_index);
503 // We currently only support extracting values with Clang QualTypes.
504 // Do we care about others?
505 ClangASTType clang_type = value->GetClangType();
510 if (clang_type.IsIntegerType (is_signed))
512 ReadIntegerArgument(value->GetScalar(),
513 clang_type.GetBitSize(),
516 argument_register_ids,
517 current_argument_register,
518 current_stack_argument);
520 else if (clang_type.IsPointerType ())
522 ReadIntegerArgument(value->GetScalar(),
523 clang_type.GetBitSize(),
526 argument_register_ids,
527 current_argument_register,
528 current_stack_argument);
536 ABISysV_x86_64::SetReturnValueObject(lldb::StackFrameSP &frame_sp, lldb::ValueObjectSP &new_value_sp)
541 error.SetErrorString("Empty value object for return value.");
545 ClangASTType clang_type = new_value_sp->GetClangType();
548 error.SetErrorString ("Null clang type for return value.");
552 Thread *thread = frame_sp->GetThread().get();
558 RegisterContext *reg_ctx = thread->GetRegisterContext().get();
560 bool set_it_simple = false;
561 if (clang_type.IsIntegerType (is_signed) || clang_type.IsPointerType())
563 const RegisterInfo *reg_info = reg_ctx->GetRegisterInfoByName("rax", 0);
567 size_t num_bytes = new_value_sp->GetData(data, data_error);
568 if (data_error.Fail())
570 error.SetErrorStringWithFormat("Couldn't convert return value to raw data: %s", data_error.AsCString());
573 lldb::offset_t offset = 0;
576 uint64_t raw_value = data.GetMaxU64(&offset, num_bytes);
578 if (reg_ctx->WriteRegisterFromUnsigned (reg_info, raw_value))
579 set_it_simple = true;
583 error.SetErrorString("We don't support returning longer than 64 bit integer values at present.");
587 else if (clang_type.IsFloatingPointType (count, is_complex))
590 error.SetErrorString ("We don't support returning complex values at present");
593 size_t bit_width = clang_type.GetBitSize();
596 const RegisterInfo *xmm0_info = reg_ctx->GetRegisterInfoByName("xmm0", 0);
597 RegisterValue xmm0_value;
600 size_t num_bytes = new_value_sp->GetData(data, data_error);
601 if (data_error.Fail())
603 error.SetErrorStringWithFormat("Couldn't convert return value to raw data: %s", data_error.AsCString());
607 unsigned char buffer[16];
608 ByteOrder byte_order = data.GetByteOrder();
610 data.CopyByteOrderedData (0, num_bytes, buffer, 16, byte_order);
611 xmm0_value.SetBytes(buffer, 16, byte_order);
612 reg_ctx->WriteRegister(xmm0_info, xmm0_value);
613 set_it_simple = true;
617 // FIXME - don't know how to do 80 bit long doubles yet.
618 error.SetErrorString ("We don't support returning float values > 64 bits at present");
625 // Okay we've got a structure or something that doesn't fit in a simple register.
626 // We should figure out where it really goes, but we don't support this yet.
627 error.SetErrorString ("We only support setting simple integer and float return types at present.");
635 ABISysV_x86_64::GetReturnValueObjectSimple (Thread &thread,
636 ClangASTType &return_clang_type) const
638 ValueObjectSP return_valobj_sp;
641 if (!return_clang_type)
642 return return_valobj_sp;
644 //value.SetContext (Value::eContextTypeClangType, return_value_type);
645 value.SetClangType (return_clang_type);
647 RegisterContext *reg_ctx = thread.GetRegisterContext().get();
649 return return_valobj_sp;
651 const uint32_t type_flags = return_clang_type.GetTypeInfo ();
652 if (type_flags & ClangASTType::eTypeIsScalar)
654 value.SetValueType(Value::eValueTypeScalar);
656 bool success = false;
657 if (type_flags & ClangASTType::eTypeIsInteger)
659 // Extract the register context so we can read arguments from registers
661 const size_t byte_size = return_clang_type.GetByteSize();
662 uint64_t raw_value = thread.GetRegisterContext()->ReadRegisterAsUnsigned(reg_ctx->GetRegisterInfoByName("rax", 0), 0);
663 const bool is_signed = (type_flags & ClangASTType::eTypeIsSigned) != 0;
669 case sizeof(uint64_t):
671 value.GetScalar() = (int64_t)(raw_value);
673 value.GetScalar() = (uint64_t)(raw_value);
677 case sizeof(uint32_t):
679 value.GetScalar() = (int32_t)(raw_value & UINT32_MAX);
681 value.GetScalar() = (uint32_t)(raw_value & UINT32_MAX);
685 case sizeof(uint16_t):
687 value.GetScalar() = (int16_t)(raw_value & UINT16_MAX);
689 value.GetScalar() = (uint16_t)(raw_value & UINT16_MAX);
693 case sizeof(uint8_t):
695 value.GetScalar() = (int8_t)(raw_value & UINT8_MAX);
697 value.GetScalar() = (uint8_t)(raw_value & UINT8_MAX);
702 else if (type_flags & ClangASTType::eTypeIsFloat)
704 if (type_flags & ClangASTType::eTypeIsComplex)
706 // Don't handle complex yet.
710 const size_t byte_size = return_clang_type.GetByteSize();
711 if (byte_size <= sizeof(long double))
713 const RegisterInfo *xmm0_info = reg_ctx->GetRegisterInfoByName("xmm0", 0);
714 RegisterValue xmm0_value;
715 if (reg_ctx->ReadRegister (xmm0_info, xmm0_value))
718 if (xmm0_value.GetData(data))
720 lldb::offset_t offset = 0;
721 if (byte_size == sizeof(float))
723 value.GetScalar() = (float) data.GetFloat(&offset);
726 else if (byte_size == sizeof(double))
728 value.GetScalar() = (double) data.GetDouble(&offset);
731 else if (byte_size == sizeof(long double))
733 // Don't handle long double since that can be encoded as 80 bit floats...
742 return_valobj_sp = ValueObjectConstResult::Create (thread.GetStackFrameAtIndex(0).get(),
747 else if (type_flags & ClangASTType::eTypeIsPointer)
749 unsigned rax_id = reg_ctx->GetRegisterInfoByName("rax", 0)->kinds[eRegisterKindLLDB];
750 value.GetScalar() = (uint64_t)thread.GetRegisterContext()->ReadRegisterAsUnsigned(rax_id, 0);
751 value.SetValueType(Value::eValueTypeScalar);
752 return_valobj_sp = ValueObjectConstResult::Create (thread.GetStackFrameAtIndex(0).get(),
756 else if (type_flags & ClangASTType::eTypeIsVector)
758 const size_t byte_size = return_clang_type.GetByteSize();
762 const RegisterInfo *altivec_reg = reg_ctx->GetRegisterInfoByName("ymm0", 0);
763 if (altivec_reg == NULL)
765 altivec_reg = reg_ctx->GetRegisterInfoByName("xmm0", 0);
766 if (altivec_reg == NULL)
767 altivec_reg = reg_ctx->GetRegisterInfoByName("mm0", 0);
772 if (byte_size <= altivec_reg->byte_size)
774 ProcessSP process_sp (thread.GetProcess());
777 std::unique_ptr<DataBufferHeap> heap_data_ap (new DataBufferHeap(byte_size, 0));
778 const ByteOrder byte_order = process_sp->GetByteOrder();
779 RegisterValue reg_value;
780 if (reg_ctx->ReadRegister(altivec_reg, reg_value))
783 if (reg_value.GetAsMemoryData (altivec_reg,
784 heap_data_ap->GetBytes(),
785 heap_data_ap->GetByteSize(),
789 DataExtractor data (DataBufferSP (heap_data_ap.release()),
791 process_sp->GetTarget().GetArchitecture().GetAddressByteSize());
792 return_valobj_sp = ValueObjectConstResult::Create (&thread,
804 return return_valobj_sp;
808 ABISysV_x86_64::GetReturnValueObjectImpl (Thread &thread, ClangASTType &return_clang_type) const
810 ValueObjectSP return_valobj_sp;
812 if (!return_clang_type)
813 return return_valobj_sp;
815 ExecutionContext exe_ctx (thread.shared_from_this());
816 return_valobj_sp = GetReturnValueObjectSimple(thread, return_clang_type);
817 if (return_valobj_sp)
818 return return_valobj_sp;
820 RegisterContextSP reg_ctx_sp = thread.GetRegisterContext();
822 return return_valobj_sp;
824 const size_t bit_width = return_clang_type.GetBitSize();
825 if (return_clang_type.IsAggregateType())
827 Target *target = exe_ctx.GetTargetPtr();
828 bool is_memory = true;
829 if (bit_width <= 128)
831 ByteOrder target_byte_order = target->GetArchitecture().GetByteOrder();
832 DataBufferSP data_sp (new DataBufferHeap(16, 0));
833 DataExtractor return_ext (data_sp,
835 target->GetArchitecture().GetAddressByteSize());
837 const RegisterInfo *rax_info = reg_ctx_sp->GetRegisterInfoByName("rax", 0);
838 const RegisterInfo *rdx_info = reg_ctx_sp->GetRegisterInfoByName("rdx", 0);
839 const RegisterInfo *xmm0_info = reg_ctx_sp->GetRegisterInfoByName("xmm0", 0);
840 const RegisterInfo *xmm1_info = reg_ctx_sp->GetRegisterInfoByName("xmm1", 0);
842 RegisterValue rax_value, rdx_value, xmm0_value, xmm1_value;
843 reg_ctx_sp->ReadRegister (rax_info, rax_value);
844 reg_ctx_sp->ReadRegister (rdx_info, rdx_value);
845 reg_ctx_sp->ReadRegister (xmm0_info, xmm0_value);
846 reg_ctx_sp->ReadRegister (xmm1_info, xmm1_value);
848 DataExtractor rax_data, rdx_data, xmm0_data, xmm1_data;
850 rax_value.GetData(rax_data);
851 rdx_value.GetData(rdx_data);
852 xmm0_value.GetData(xmm0_data);
853 xmm1_value.GetData(xmm1_data);
855 uint32_t fp_bytes = 0; // Tracks how much of the xmm registers we've consumed so far
856 uint32_t integer_bytes = 0; // Tracks how much of the rax/rds registers we've consumed so far
858 const uint32_t num_children = return_clang_type.GetNumFields ();
860 // Since we are in the small struct regime, assume we are not in memory.
863 for (uint32_t idx = 0; idx < num_children; idx++)
866 uint64_t field_bit_offset = 0;
871 ClangASTType field_clang_type = return_clang_type.GetFieldAtIndex (idx, name, &field_bit_offset, NULL, NULL);
872 const size_t field_bit_width = field_clang_type.GetBitSize();
874 // If there are any unaligned fields, this is stored in memory.
875 if (field_bit_offset % field_bit_width != 0)
881 uint32_t field_byte_width = field_bit_width/8;
882 uint32_t field_byte_offset = field_bit_offset/8;
885 DataExtractor *copy_from_extractor = NULL;
886 uint32_t copy_from_offset = 0;
888 if (field_clang_type.IsIntegerType (is_signed) || field_clang_type.IsPointerType ())
890 if (integer_bytes < 8)
892 if (integer_bytes + field_byte_width <= 8)
894 // This is in RAX, copy from register to our result structure:
895 copy_from_extractor = &rax_data;
896 copy_from_offset = integer_bytes;
897 integer_bytes += field_byte_width;
901 // The next field wouldn't fit in the remaining space, so we pushed it to rdx.
902 copy_from_extractor = &rdx_data;
903 copy_from_offset = 0;
904 integer_bytes = 8 + field_byte_width;
908 else if (integer_bytes + field_byte_width <= 16)
910 copy_from_extractor = &rdx_data;
911 copy_from_offset = integer_bytes - 8;
912 integer_bytes += field_byte_width;
916 // The last field didn't fit. I can't see how that would happen w/o the overall size being
917 // greater than 16 bytes. For now, return a NULL return value object.
918 return return_valobj_sp;
921 else if (field_clang_type.IsFloatingPointType (count, is_complex))
923 // Structs with long doubles are always passed in memory.
924 if (field_bit_width == 128)
929 else if (field_bit_width == 64)
931 // These have to be in a single xmm register.
933 copy_from_extractor = &xmm0_data;
935 copy_from_extractor = &xmm1_data;
937 copy_from_offset = 0;
938 fp_bytes += field_byte_width;
940 else if (field_bit_width == 32)
942 // This one is kind of complicated. If we are in an "eightbyte" with another float, we'll
943 // be stuffed into an xmm register with it. If we are in an "eightbyte" with one or more ints,
944 // then we will be stuffed into the appropriate GPR with them.
946 if (field_byte_offset % 8 == 0)
948 // We are at the beginning of one of the eightbytes, so check the next element (if any)
949 if (idx == num_children - 1)
953 uint64_t next_field_bit_offset = 0;
954 ClangASTType next_field_clang_type = return_clang_type.GetFieldAtIndex (idx + 1,
956 &next_field_bit_offset,
959 if (next_field_clang_type.IsIntegerType (is_signed))
963 copy_from_offset = 0;
969 else if (field_byte_offset % 4 == 0)
971 // We are inside of an eightbyte, so see if the field before us is floating point:
972 // This could happen if somebody put padding in the structure.
977 uint64_t prev_field_bit_offset = 0;
978 ClangASTType prev_field_clang_type = return_clang_type.GetFieldAtIndex (idx - 1,
980 &prev_field_bit_offset,
983 if (prev_field_clang_type.IsIntegerType (is_signed))
987 copy_from_offset = 4;
999 // Okay, we've figured out whether we are in GPR or XMM, now figure out which one.
1002 if (integer_bytes < 8)
1004 // This is in RAX, copy from register to our result structure:
1005 copy_from_extractor = &rax_data;
1006 copy_from_offset = integer_bytes;
1007 integer_bytes += field_byte_width;
1011 copy_from_extractor = &rdx_data;
1012 copy_from_offset = integer_bytes - 8;
1013 integer_bytes += field_byte_width;
1019 copy_from_extractor = &xmm0_data;
1021 copy_from_extractor = &xmm1_data;
1023 fp_bytes += field_byte_width;
1028 // These two tests are just sanity checks. If I somehow get the
1029 // type calculation wrong above it is better to just return nothing
1030 // than to assert or crash.
1031 if (!copy_from_extractor)
1032 return return_valobj_sp;
1033 if (copy_from_offset + field_byte_width > copy_from_extractor->GetByteSize())
1034 return return_valobj_sp;
1036 copy_from_extractor->CopyByteOrderedData (copy_from_offset,
1038 data_sp->GetBytes() + field_byte_offset,
1045 // The result is in our data buffer. Let's make a variable object out of it:
1046 return_valobj_sp = ValueObjectConstResult::Create (&thread,
1054 // FIXME: This is just taking a guess, rax may very well no longer hold the return storage location.
1055 // If we are going to do this right, when we make a new frame we should check to see if it uses a memory
1056 // return, and if we are at the first instruction and if so stash away the return location. Then we would
1057 // only return the memory return value if we know it is valid.
1061 unsigned rax_id = reg_ctx_sp->GetRegisterInfoByName("rax", 0)->kinds[eRegisterKindLLDB];
1062 lldb::addr_t storage_addr = (uint64_t)thread.GetRegisterContext()->ReadRegisterAsUnsigned(rax_id, 0);
1063 return_valobj_sp = ValueObjectMemory::Create (&thread,
1065 Address (storage_addr, NULL),
1070 return return_valobj_sp;
1074 ABISysV_x86_64::CreateFunctionEntryUnwindPlan (UnwindPlan &unwind_plan)
1076 unwind_plan.Clear();
1077 unwind_plan.SetRegisterKind (eRegisterKindDWARF);
1079 uint32_t sp_reg_num = gcc_dwarf_rsp;
1080 uint32_t pc_reg_num = gcc_dwarf_rip;
1082 UnwindPlan::RowSP row(new UnwindPlan::Row);
1083 row->SetCFARegister (sp_reg_num);
1084 row->SetCFAOffset (8);
1085 row->SetRegisterLocationToAtCFAPlusOffset(pc_reg_num, -8, false);
1086 unwind_plan.AppendRow (row);
1087 unwind_plan.SetSourceName ("x86_64 at-func-entry default");
1088 unwind_plan.SetSourcedFromCompiler (eLazyBoolNo);
1093 ABISysV_x86_64::CreateDefaultUnwindPlan (UnwindPlan &unwind_plan)
1095 unwind_plan.Clear();
1096 unwind_plan.SetRegisterKind (eRegisterKindDWARF);
1098 uint32_t fp_reg_num = gcc_dwarf_rbp;
1099 uint32_t sp_reg_num = gcc_dwarf_rsp;
1100 uint32_t pc_reg_num = gcc_dwarf_rip;
1102 UnwindPlan::RowSP row(new UnwindPlan::Row);
1104 const int32_t ptr_size = 8;
1105 row->SetCFARegister (gcc_dwarf_rbp);
1106 row->SetCFAOffset (2 * ptr_size);
1109 row->SetRegisterLocationToAtCFAPlusOffset(fp_reg_num, ptr_size * -2, true);
1110 row->SetRegisterLocationToAtCFAPlusOffset(pc_reg_num, ptr_size * -1, true);
1111 row->SetRegisterLocationToIsCFAPlusOffset(sp_reg_num, 0, true);
1113 unwind_plan.AppendRow (row);
1114 unwind_plan.SetSourceName ("x86_64 default unwind plan");
1115 unwind_plan.SetSourcedFromCompiler (eLazyBoolNo);
1116 unwind_plan.SetUnwindPlanValidAtAllInstructions (eLazyBoolNo);
1121 ABISysV_x86_64::RegisterIsVolatile (const RegisterInfo *reg_info)
1123 return !RegisterIsCalleeSaved (reg_info);
1128 // See "Register Usage" in the
1129 // "System V Application Binary Interface"
1130 // "AMD64 Architecture Processor Supplement"
1131 // (or "x86-64(tm) Architecture Processor Supplement" in earlier revisions)
1132 // (this doc is also commonly referred to as the x86-64/AMD64 psABI)
1133 // Edited by Michael Matz, Jan Hubicka, Andreas Jaeger, and Mark Mitchell
1134 // current version is 0.99.6 released 2012-07-02 at http://refspecs.linuxfoundation.org/elf/x86-64-abi-0.99.pdf
1137 ABISysV_x86_64::RegisterIsCalleeSaved (const RegisterInfo *reg_info)
1141 // Preserved registers are :
1142 // rbx, rsp, rbp, r12, r13, r14, r15
1143 // mxcsr (partially preserved)
1146 const char *name = reg_info->name;
1151 case '1': // r12, r13, r14, r15
1152 if (name[2] >= '2' && name[2] <= '5')
1153 return name[3] == '\0';
1161 // Accept shorter-variant versions, rbx/ebx, rip/ eip, etc.
1162 if (name[0] == 'r' || name[0] == 'e')
1166 case 'b': // rbp, rbx
1167 if (name[2] == 'p' || name[2] == 'x')
1168 return name[3] == '\0';
1173 return name[3] == '\0';
1178 return name[3] == '\0';
1183 if (name[0] == 's' && name[1] == 'p' && name[2] == '\0') // sp
1185 if (name[0] == 'f' && name[1] == 'p' && name[2] == '\0') // fp
1187 if (name[0] == 'p' && name[1] == 'c' && name[2] == '\0') // pc
1196 ABISysV_x86_64::Initialize()
1198 PluginManager::RegisterPlugin (GetPluginNameStatic(),
1199 "System V ABI for x86_64 targets",
1204 ABISysV_x86_64::Terminate()
1206 PluginManager::UnregisterPlugin (CreateInstance);
1209 lldb_private::ConstString
1210 ABISysV_x86_64::GetPluginNameStatic()
1212 static ConstString g_name("sysv-x86_64");
1216 //------------------------------------------------------------------
1217 // PluginInterface protocol
1218 //------------------------------------------------------------------
1219 lldb_private::ConstString
1220 ABISysV_x86_64::GetPluginName()
1222 return GetPluginNameStatic();
1226 ABISysV_x86_64::GetPluginVersion()