13842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz/* libunwind - a platform-independent unwind library 23842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz Copyright (C) 2008 CodeSourcery 33842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 43842dac7333e42aa44531eda34ba55200b99ccf8Daniel JacobowitzThis file is part of libunwind. 53842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 63842dac7333e42aa44531eda34ba55200b99ccf8Daniel JacobowitzPermission is hereby granted, free of charge, to any person obtaining 73842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitza copy of this software and associated documentation files (the 83842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz"Software"), to deal in the Software without restriction, including 93842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitzwithout limitation the rights to use, copy, modify, merge, publish, 103842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitzdistribute, sublicense, and/or sell copies of the Software, and to 113842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitzpermit persons to whom the Software is furnished to do so, subject to 123842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitzthe following conditions: 133842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 143842dac7333e42aa44531eda34ba55200b99ccf8Daniel JacobowitzThe above copyright notice and this permission notice shall be 153842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitzincluded in all copies or substantial portions of the Software. 163842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 173842dac7333e42aa44531eda34ba55200b99ccf8Daniel JacobowitzTHE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 183842dac7333e42aa44531eda34ba55200b99ccf8Daniel JacobowitzEXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 193842dac7333e42aa44531eda34ba55200b99ccf8Daniel JacobowitzMERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 203842dac7333e42aa44531eda34ba55200b99ccf8Daniel JacobowitzNONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE 213842dac7333e42aa44531eda34ba55200b99ccf8Daniel JacobowitzLIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 223842dac7333e42aa44531eda34ba55200b99ccf8Daniel JacobowitzOF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 233842dac7333e42aa44531eda34ba55200b99ccf8Daniel JacobowitzWITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ 243842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 253842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz#include "unwind_i.h" 263842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 273842dac7333e42aa44531eda34ba55200b99ccf8Daniel JacobowitzHIDDEN int 283842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitztdep_access_reg (struct cursor *c, unw_regnum_t reg, unw_word_t *valp, 293842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz int write) 303842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz{ 313842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz dwarf_loc_t loc = DWARF_NULL_LOC; 323842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 333842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz switch (reg) 343842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz { 353842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz case UNW_ARM_R0: 363842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz case UNW_ARM_R1: 373842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz case UNW_ARM_R2: 383842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz case UNW_ARM_R3: 393842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz case UNW_ARM_R4: 403842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz case UNW_ARM_R5: 413842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz case UNW_ARM_R6: 423842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz case UNW_ARM_R7: 433842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz case UNW_ARM_R8: 443842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz case UNW_ARM_R9: 453842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz case UNW_ARM_R10: 463842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz case UNW_ARM_R11: 473842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz case UNW_ARM_R12: 483842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz case UNW_ARM_R14: 493842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz case UNW_ARM_R15: 503842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz loc = c->dwarf.loc[reg - UNW_ARM_R0]; 513842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz break; 523842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 530f9937485ea8c52cebd4512885d9e2decd5a3dddKen Werner case UNW_ARM_R13: 543842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz case UNW_ARM_CFA: 553842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz if (write) 563842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz return -UNW_EREADONLYREG; 573842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz *valp = c->dwarf.cfa; 583842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz return 0; 593842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 603842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz /* FIXME: Initialise coprocessor & shadow registers? */ 613842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 623842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz default: 633842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz Debug (1, "bad register number %u\n", reg); 643842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz return -UNW_EBADREG; 653842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz } 663842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 673842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz if (write) 683842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz return dwarf_put (&c->dwarf, loc, *valp); 693842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz else 703842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz return dwarf_get (&c->dwarf, loc, valp); 713842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz} 723842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 733842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz/* FIXME for ARM. */ 743842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 753842dac7333e42aa44531eda34ba55200b99ccf8Daniel JacobowitzHIDDEN int 763842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitztdep_access_fpreg (struct cursor *c, unw_regnum_t reg, unw_fpreg_t *valp, 773842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz int write) 783842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz{ 793842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz Debug (1, "bad register number %u\n", reg); 803842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz return -UNW_EBADREG; 813842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz} 82