| /* libunwind - a platform-independent unwind library |
| Copyright (C) 2008 CodeSourcery |
| |
| This file is part of libunwind. |
| |
| Permission is hereby granted, free of charge, to any person obtaining |
| a copy of this software and associated documentation files (the |
| "Software"), to deal in the Software without restriction, including |
| without limitation the rights to use, copy, modify, merge, publish, |
| distribute, sublicense, and/or sell copies of the Software, and to |
| permit persons to whom the Software is furnished to do so, subject to |
| the following conditions: |
| |
| The above copyright notice and this permission notice shall be |
| included in all copies or substantial portions of the Software. |
| |
| THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
| NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE |
| LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION |
| OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION |
| WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ |
| |
| #include "unwind_i.h" |
| |
| HIDDEN int |
| tdep_access_reg (struct cursor *c, unw_regnum_t reg, unw_word_t *valp, |
| int write) |
| { |
| dwarf_loc_t loc = DWARF_NULL_LOC; |
| |
| switch (reg) |
| { |
| case UNW_ARM_R0: |
| case UNW_ARM_R1: |
| case UNW_ARM_R2: |
| case UNW_ARM_R3: |
| case UNW_ARM_R4: |
| case UNW_ARM_R5: |
| case UNW_ARM_R6: |
| case UNW_ARM_R7: |
| case UNW_ARM_R8: |
| case UNW_ARM_R9: |
| case UNW_ARM_R10: |
| case UNW_ARM_R11: |
| case UNW_ARM_R12: |
| case UNW_ARM_R14: |
| case UNW_ARM_R15: |
| loc = c->dwarf.loc[reg - UNW_ARM_R0]; |
| break; |
| |
| case UNW_ARM_R13: |
| case UNW_ARM_CFA: |
| if (write) |
| return -UNW_EREADONLYREG; |
| *valp = c->dwarf.cfa; |
| return 0; |
| |
| /* FIXME: Initialise coprocessor & shadow registers? */ |
| |
| default: |
| Debug (1, "bad register number %u\n", reg); |
| return -UNW_EBADREG; |
| } |
| |
| if (write) |
| return dwarf_put (&c->dwarf, loc, *valp); |
| else |
| return dwarf_get (&c->dwarf, loc, valp); |
| } |
| |
| /* FIXME for ARM. */ |
| |
| HIDDEN int |
| tdep_access_fpreg (struct cursor *c, unw_regnum_t reg, unw_fpreg_t *valp, |
| int write) |
| { |
| Debug (1, "bad register number %u\n", reg); |
| return -UNW_EBADREG; |
| } |