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100 lines
2.7 KiB
C
100 lines
2.7 KiB
C
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/* libunwind - a platform-independent unwind library
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Copyright (C) 2008 CodeSourcery
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This file is part of libunwind.
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Permission is hereby granted, free of charge, to any person obtaining
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a copy of this software and associated documentation files (the
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"Software"), to deal in the Software without restriction, including
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without limitation the rights to use, copy, modify, merge, publish,
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distribute, sublicense, and/or sell copies of the Software, and to
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permit persons to whom the Software is furnished to do so, subject to
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the following conditions:
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The above copyright notice and this permission notice shall be
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included in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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#include "unwind_i.h"
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/* FIXME: The following is probably unfinished and/or at least partly bogus. */
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HIDDEN int
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tdep_access_reg (struct cursor *c, unw_regnum_t reg, unw_word_t *valp,
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int write)
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{
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dwarf_loc_t loc = DWARF_NULL_LOC;
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switch (reg)
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{
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case UNW_MIPS_R0:
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case UNW_MIPS_R1:
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case UNW_MIPS_R2:
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case UNW_MIPS_R3:
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case UNW_MIPS_R4:
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case UNW_MIPS_R5:
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case UNW_MIPS_R6:
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case UNW_MIPS_R7:
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case UNW_MIPS_R8:
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case UNW_MIPS_R9:
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case UNW_MIPS_R10:
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case UNW_MIPS_R11:
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case UNW_MIPS_R12:
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case UNW_MIPS_R13:
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case UNW_MIPS_R14:
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case UNW_MIPS_R15:
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case UNW_MIPS_R16:
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case UNW_MIPS_R17:
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case UNW_MIPS_R18:
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case UNW_MIPS_R19:
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case UNW_MIPS_R20:
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case UNW_MIPS_R21:
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case UNW_MIPS_R22:
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case UNW_MIPS_R23:
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case UNW_MIPS_R24:
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case UNW_MIPS_R25:
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case UNW_MIPS_R26:
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case UNW_MIPS_R27:
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case UNW_MIPS_R28:
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case UNW_MIPS_R29:
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case UNW_MIPS_R30:
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case UNW_MIPS_R31:
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loc = c->dwarf.loc[reg - UNW_MIPS_R0];
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break;
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case UNW_MIPS_CFA:
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if (write)
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return -UNW_EREADONLYREG;
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*valp = c->dwarf.cfa;
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return 0;
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/* FIXME: IP? Copro & shadow registers? */
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default:
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Debug (1, "bad register number %u\n", reg);
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return -UNW_EBADREG;
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}
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if (write)
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return dwarf_put (&c->dwarf, loc, *valp);
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else
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return dwarf_get (&c->dwarf, loc, valp);
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}
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/* FIXME for MIPS. */
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HIDDEN int
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tdep_access_fpreg (struct cursor *c, unw_regnum_t reg, unw_fpreg_t *valp,
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int write)
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{
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Debug (1, "bad register number %u\n", reg);
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return -UNW_EBADREG;
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}
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