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GDBserver
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00001 /* GNU/Linux/IA64 specific low level interface, for the remote server for GDB. 00002 Copyright (C) 1995-2013 Free Software Foundation, Inc. 00003 00004 This file is part of GDB. 00005 00006 This program is free software; you can redistribute it and/or modify 00007 it under the terms of the GNU General Public License as published by 00008 the Free Software Foundation; either version 3 of the License, or 00009 (at your option) any later version. 00010 00011 This program is distributed in the hope that it will be useful, 00012 but WITHOUT ANY WARRANTY; without even the implied warranty of 00013 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00014 GNU General Public License for more details. 00015 00016 You should have received a copy of the GNU General Public License 00017 along with this program. If not, see <http://www.gnu.org/licenses/>. */ 00018 00019 #include "server.h" 00020 #include "linux-low.h" 00021 00022 #ifdef HAVE_SYS_REG_H 00023 #include <sys/reg.h> 00024 #endif 00025 00026 /* Defined in auto-generated file reg-ia64.c. */ 00027 void init_registers_ia64 (void); 00028 extern const struct target_desc *tdesc_ia64; 00029 00030 #define ia64_num_regs 462 00031 00032 #include <asm/ptrace_offsets.h> 00033 00034 static int ia64_regmap[] = 00035 { 00036 /* general registers */ 00037 -1, /* gr0 not available; i.e, it's always zero */ 00038 PT_R1, 00039 PT_R2, 00040 PT_R3, 00041 PT_R4, 00042 PT_R5, 00043 PT_R6, 00044 PT_R7, 00045 PT_R8, 00046 PT_R9, 00047 PT_R10, 00048 PT_R11, 00049 PT_R12, 00050 PT_R13, 00051 PT_R14, 00052 PT_R15, 00053 PT_R16, 00054 PT_R17, 00055 PT_R18, 00056 PT_R19, 00057 PT_R20, 00058 PT_R21, 00059 PT_R22, 00060 PT_R23, 00061 PT_R24, 00062 PT_R25, 00063 PT_R26, 00064 PT_R27, 00065 PT_R28, 00066 PT_R29, 00067 PT_R30, 00068 PT_R31, 00069 /* gr32 through gr127 not directly available via the ptrace interface */ 00070 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 00071 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 00072 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 00073 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 00074 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 00075 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 00076 /* Floating point registers */ 00077 -1, -1, /* f0 and f1 not available (f0 is +0.0 and f1 is +1.0) */ 00078 PT_F2, 00079 PT_F3, 00080 PT_F4, 00081 PT_F5, 00082 PT_F6, 00083 PT_F7, 00084 PT_F8, 00085 PT_F9, 00086 PT_F10, 00087 PT_F11, 00088 PT_F12, 00089 PT_F13, 00090 PT_F14, 00091 PT_F15, 00092 PT_F16, 00093 PT_F17, 00094 PT_F18, 00095 PT_F19, 00096 PT_F20, 00097 PT_F21, 00098 PT_F22, 00099 PT_F23, 00100 PT_F24, 00101 PT_F25, 00102 PT_F26, 00103 PT_F27, 00104 PT_F28, 00105 PT_F29, 00106 PT_F30, 00107 PT_F31, 00108 PT_F32, 00109 PT_F33, 00110 PT_F34, 00111 PT_F35, 00112 PT_F36, 00113 PT_F37, 00114 PT_F38, 00115 PT_F39, 00116 PT_F40, 00117 PT_F41, 00118 PT_F42, 00119 PT_F43, 00120 PT_F44, 00121 PT_F45, 00122 PT_F46, 00123 PT_F47, 00124 PT_F48, 00125 PT_F49, 00126 PT_F50, 00127 PT_F51, 00128 PT_F52, 00129 PT_F53, 00130 PT_F54, 00131 PT_F55, 00132 PT_F56, 00133 PT_F57, 00134 PT_F58, 00135 PT_F59, 00136 PT_F60, 00137 PT_F61, 00138 PT_F62, 00139 PT_F63, 00140 PT_F64, 00141 PT_F65, 00142 PT_F66, 00143 PT_F67, 00144 PT_F68, 00145 PT_F69, 00146 PT_F70, 00147 PT_F71, 00148 PT_F72, 00149 PT_F73, 00150 PT_F74, 00151 PT_F75, 00152 PT_F76, 00153 PT_F77, 00154 PT_F78, 00155 PT_F79, 00156 PT_F80, 00157 PT_F81, 00158 PT_F82, 00159 PT_F83, 00160 PT_F84, 00161 PT_F85, 00162 PT_F86, 00163 PT_F87, 00164 PT_F88, 00165 PT_F89, 00166 PT_F90, 00167 PT_F91, 00168 PT_F92, 00169 PT_F93, 00170 PT_F94, 00171 PT_F95, 00172 PT_F96, 00173 PT_F97, 00174 PT_F98, 00175 PT_F99, 00176 PT_F100, 00177 PT_F101, 00178 PT_F102, 00179 PT_F103, 00180 PT_F104, 00181 PT_F105, 00182 PT_F106, 00183 PT_F107, 00184 PT_F108, 00185 PT_F109, 00186 PT_F110, 00187 PT_F111, 00188 PT_F112, 00189 PT_F113, 00190 PT_F114, 00191 PT_F115, 00192 PT_F116, 00193 PT_F117, 00194 PT_F118, 00195 PT_F119, 00196 PT_F120, 00197 PT_F121, 00198 PT_F122, 00199 PT_F123, 00200 PT_F124, 00201 PT_F125, 00202 PT_F126, 00203 PT_F127, 00204 /* predicate registers - we don't fetch these individually */ 00205 -1, -1, -1, -1, -1, -1, -1, -1, 00206 -1, -1, -1, -1, -1, -1, -1, -1, 00207 -1, -1, -1, -1, -1, -1, -1, -1, 00208 -1, -1, -1, -1, -1, -1, -1, -1, 00209 -1, -1, -1, -1, -1, -1, -1, -1, 00210 -1, -1, -1, -1, -1, -1, -1, -1, 00211 -1, -1, -1, -1, -1, -1, -1, -1, 00212 -1, -1, -1, -1, -1, -1, -1, -1, 00213 /* branch registers */ 00214 PT_B0, 00215 PT_B1, 00216 PT_B2, 00217 PT_B3, 00218 PT_B4, 00219 PT_B5, 00220 PT_B6, 00221 PT_B7, 00222 /* virtual frame pointer and virtual return address pointer */ 00223 -1, -1, 00224 /* other registers */ 00225 PT_PR, 00226 PT_CR_IIP, /* ip */ 00227 PT_CR_IPSR, /* psr */ 00228 PT_CFM, /* cfm */ 00229 /* kernel registers not visible via ptrace interface (?) */ 00230 -1, -1, -1, -1, -1, -1, -1, -1, 00231 /* hole */ 00232 -1, -1, -1, -1, -1, -1, -1, -1, 00233 PT_AR_RSC, 00234 PT_AR_BSP, 00235 PT_AR_BSPSTORE, 00236 PT_AR_RNAT, 00237 -1, 00238 -1, /* Not available: FCR, IA32 floating control register */ 00239 -1, -1, 00240 -1, /* Not available: EFLAG */ 00241 -1, /* Not available: CSD */ 00242 -1, /* Not available: SSD */ 00243 -1, /* Not available: CFLG */ 00244 -1, /* Not available: FSR */ 00245 -1, /* Not available: FIR */ 00246 -1, /* Not available: FDR */ 00247 -1, 00248 PT_AR_CCV, 00249 -1, -1, -1, 00250 PT_AR_UNAT, 00251 -1, -1, -1, 00252 PT_AR_FPSR, 00253 -1, -1, -1, 00254 -1, /* Not available: ITC */ 00255 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 00256 -1, -1, -1, -1, -1, -1, -1, -1, -1, 00257 PT_AR_PFS, 00258 PT_AR_LC, 00259 PT_AR_EC, 00260 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 00261 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 00262 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 00263 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 00264 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 00265 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 00266 -1, 00267 }; 00268 00269 static int 00270 ia64_cannot_store_register (int regno) 00271 { 00272 return 0; 00273 } 00274 00275 static int 00276 ia64_cannot_fetch_register (int regno) 00277 { 00278 return 0; 00279 } 00280 00281 /* GDB register numbers. */ 00282 #define IA64_GR0_REGNUM 0 00283 #define IA64_FR0_REGNUM 128 00284 #define IA64_FR1_REGNUM 129 00285 00286 static int 00287 ia64_fetch_register (struct regcache *regcache, int regnum) 00288 { 00289 /* r0 cannot be fetched but is always zero. */ 00290 if (regnum == IA64_GR0_REGNUM) 00291 { 00292 const gdb_byte zero[8] = { 0 }; 00293 00294 gdb_assert (sizeof (zero) == register_size (regcache->tdesc, regnum)); 00295 supply_register (regcache, regnum, zero); 00296 return 1; 00297 } 00298 00299 /* fr0 cannot be fetched but is always zero. */ 00300 if (regnum == IA64_FR0_REGNUM) 00301 { 00302 const gdb_byte f_zero[16] = { 0 }; 00303 00304 gdb_assert (sizeof (f_zero) == register_size (regcache->tdesc, regnum)); 00305 supply_register (regcache, regnum, f_zero); 00306 return 1; 00307 } 00308 00309 /* fr1 cannot be fetched but is always one (1.0). */ 00310 if (regnum == IA64_FR1_REGNUM) 00311 { 00312 const gdb_byte f_one[16] = 00313 { 0, 0, 0, 0, 0, 0, 0, 0x80, 0xff, 0xff, 0, 0, 0, 0, 0, 0 }; 00314 00315 gdb_assert (sizeof (f_one) == register_size (regcache->tdesc, regnum)); 00316 supply_register (regcache, regnum, f_one); 00317 return 1; 00318 } 00319 00320 return 0; 00321 } 00322 00323 static struct usrregs_info ia64_usrregs_info = 00324 { 00325 ia64_num_regs, 00326 ia64_regmap, 00327 }; 00328 00329 static struct regs_info regs_info = 00330 { 00331 NULL, /* regset_bitmap */ 00332 &ia64_usrregs_info 00333 }; 00334 00335 static const struct regs_info * 00336 ia64_regs_info (void) 00337 { 00338 return ®s_info; 00339 } 00340 00341 static void 00342 ia64_arch_setup (void) 00343 { 00344 current_process ()->tdesc = tdesc_ia64; 00345 } 00346 00347 00348 struct linux_target_ops the_low_target = { 00349 ia64_arch_setup, 00350 ia64_regs_info, 00351 ia64_cannot_fetch_register, 00352 ia64_cannot_store_register, 00353 ia64_fetch_register, 00354 }; 00355 00356 void 00357 initialize_low_arch (void) 00358 { 00359 init_registers_ia64 (); 00360 }
1.7.6.1
