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julius |
/* unwind-ia64.c -- utility routines to dump IA-64 unwind info for readelf.
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Copyright 2000, 2001, 2002, 2003, 2005, 2007 Free Software Foundation, Inc.
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Contributed by David Mosberger-Tang <davidm@hpl.hp.com>
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This file is part of GNU Binutils.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3, or (at your option)
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any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, 51 Franklin Street - Fifth Floor, Boston,
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MA 02110-1301, USA. */
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#include "unwind-ia64.h"
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#include <stdio.h>
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#include <string.h>
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#if __GNUC__ >= 2
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/* Define BFD64 here, even if our default architecture is 32 bit ELF
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as this will allow us to read in and parse 64bit and 32bit ELF files.
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Only do this if we believe that the compiler can support a 64 bit
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data type. For now we only rely on GCC being able to do this. */
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#define BFD64
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#endif
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#include "bfd.h"
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static bfd_vma unw_rlen = 0;
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static void unw_print_brmask (char *, unsigned int);
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static void unw_print_grmask (char *, unsigned int);
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static void unw_print_frmask (char *, unsigned int);
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static void unw_print_abreg (char *, unsigned int);
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static void unw_print_xyreg (char *, unsigned int, unsigned int);
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static void
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unw_print_brmask (char *cp, unsigned int mask)
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{
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int sep = 0;
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int i;
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for (i = 0; mask && (i < 5); ++i)
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{
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if (mask & 1)
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{
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if (sep)
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*cp++ = ',';
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*cp++ = 'b';
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*cp++ = i + 1 + '0';
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sep = 1;
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}
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mask >>= 1;
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}
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*cp = '\0';
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}
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static void
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unw_print_grmask (char *cp, unsigned int mask)
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{
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int sep = 0;
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int i;
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for (i = 0; i < 4; ++i)
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{
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if (mask & 1)
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{
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if (sep)
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*cp++ = ',';
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*cp++ = 'r';
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*cp++ = i + 4 + '0';
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sep = 1;
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}
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mask >>= 1;
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}
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*cp = '\0';
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}
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static void
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unw_print_frmask (char *cp, unsigned int mask)
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{
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int sep = 0;
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int i;
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for (i = 0; i < 20; ++i)
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{
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if (mask & 1)
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{
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if (sep)
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*cp++ = ',';
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*cp++ = 'f';
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if (i < 4)
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*cp++ = i + 2 + '0';
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else
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{
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*cp++ = (i + 2) / 10 + 1 + '0';
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*cp++ = (i + 2) % 10 + '0';
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}
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sep = 1;
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}
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mask >>= 1;
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}
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*cp = '\0';
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}
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static void
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unw_print_abreg (char *cp, unsigned int abreg)
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{
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static const char *special_reg[16] =
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{
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"pr", "psp", "@priunat", "rp", "ar.bsp", "ar.bspstore", "ar.rnat",
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"ar.unat", "ar.fpsr", "ar.pfs", "ar.lc",
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"Unknown11", "Unknown12", "Unknown13", "Unknown14", "Unknown15"
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};
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switch ((abreg >> 5) & 0x3)
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{
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case 0: /* gr */
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sprintf (cp, "r%u", (abreg & 0x1f));
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break;
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case 1: /* fr */
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sprintf (cp, "f%u", (abreg & 0x1f));
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break;
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case 2: /* br */
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sprintf (cp, "b%u", (abreg & 0x1f));
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break;
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case 3: /* special */
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strcpy (cp, special_reg[abreg & 0xf]);
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break;
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}
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}
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static void
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unw_print_xyreg (char *cp, unsigned int x, unsigned int ytreg)
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{
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switch ((x << 1) | ((ytreg >> 7) & 1))
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{
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case 0: /* gr */
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sprintf (cp, "r%u", (ytreg & 0x1f));
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break;
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case 1: /* fr */
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sprintf (cp, "f%u", (ytreg & 0x1f));
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break;
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case 2: /* br */
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sprintf (cp, "b%u", (ytreg & 0x1f));
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break;
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}
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}
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#define UNW_REG_BSP "bsp"
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#define UNW_REG_BSPSTORE "bspstore"
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#define UNW_REG_FPSR "fpsr"
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#define UNW_REG_LC "lc"
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#define UNW_REG_PFS "pfs"
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#define UNW_REG_PR "pr"
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#define UNW_REG_PSP "psp"
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#define UNW_REG_RNAT "rnat"
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#define UNW_REG_RP "rp"
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#define UNW_REG_UNAT "unat"
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typedef bfd_vma unw_word;
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#define UNW_DEC_BAD_CODE(code) \
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printf ("Unknown code 0x%02x\n", code)
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#define UNW_DEC_PROLOGUE(fmt, body, rlen, arg) \
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do \
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{ \
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unw_rlen = rlen; \
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*(int *)arg = body; \
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printf (" %s:%s(rlen=%lu)\n", \
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fmt, body ? "body" : "prologue", (unsigned long) rlen); \
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} \
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while (0)
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#define UNW_DEC_PROLOGUE_GR(fmt, rlen, mask, grsave, arg) \
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do \
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{ \
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char regname[16], maskstr[64], *sep; \
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\
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unw_rlen = rlen; \
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*(int *)arg = 0; \
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\
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maskstr[0] = '\0'; \
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sep = ""; \
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if (mask & 0x8) \
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{ \
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strcat (maskstr, "rp"); \
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sep = ","; \
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} \
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if (mask & 0x4) \
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{ \
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strcat (maskstr, sep); \
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strcat (maskstr, "ar.pfs"); \
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sep = ","; \
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} \
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if (mask & 0x2) \
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{ \
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| 210 |
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strcat (maskstr, sep); \
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| 211 |
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strcat (maskstr, "psp"); \
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sep = ","; \
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} \
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if (mask & 0x1) \
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{ \
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strcat (maskstr, sep); \
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| 217 |
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strcat (maskstr, "pr"); \
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} \
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sprintf (regname, "r%u", grsave); \
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printf (" %s:prologue_gr(mask=[%s],grsave=%s,rlen=%lu)\n", \
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fmt, maskstr, regname, (unsigned long) rlen); \
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| 222 |
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} \
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| 223 |
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while (0)
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| 224 |
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| 225 |
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#define UNW_DEC_FR_MEM(fmt, frmask, arg) \
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do \
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{ \
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char frstr[200]; \
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\
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| 230 |
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unw_print_frmask (frstr, frmask); \
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printf ("\t%s:fr_mem(frmask=[%s])\n", fmt, frstr); \
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} \
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while (0)
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| 234 |
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#define UNW_DEC_GR_MEM(fmt, grmask, arg) \
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do \
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{ \
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| 238 |
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char grstr[200]; \
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| 239 |
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\
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| 240 |
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unw_print_grmask (grstr, grmask); \
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| 241 |
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printf ("\t%s:gr_mem(grmask=[%s])\n", fmt, grstr); \
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} \
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| 243 |
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while (0)
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| 244 |
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| 245 |
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#define UNW_DEC_FRGR_MEM(fmt, grmask, frmask, arg) \
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| 246 |
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do \
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| 247 |
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{ \
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| 248 |
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char frstr[200], grstr[20]; \
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| 249 |
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\
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| 250 |
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unw_print_grmask (grstr, grmask); \
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| 251 |
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unw_print_frmask (frstr, frmask); \
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| 252 |
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printf ("\t%s:frgr_mem(grmask=[%s],frmask=[%s])\n", fmt, grstr, frstr); \
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| 253 |
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} \
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| 254 |
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while (0)
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| 255 |
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| 256 |
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#define UNW_DEC_BR_MEM(fmt, brmask, arg) \
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| 257 |
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do \
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| 258 |
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{ \
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| 259 |
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char brstr[20]; \
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| 260 |
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\
|
| 261 |
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unw_print_brmask (brstr, brmask); \
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| 262 |
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printf ("\t%s:br_mem(brmask=[%s])\n", fmt, brstr); \
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| 263 |
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} \
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| 264 |
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while (0)
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| 265 |
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| 266 |
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#define UNW_DEC_BR_GR(fmt, brmask, gr, arg) \
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| 267 |
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do \
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| 268 |
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{ \
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| 269 |
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char brstr[20]; \
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| 270 |
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\
|
| 271 |
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unw_print_brmask (brstr, brmask); \
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| 272 |
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printf ("\t%s:br_gr(brmask=[%s],gr=r%u)\n", fmt, brstr, gr); \
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| 273 |
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} \
|
| 274 |
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while (0)
|
| 275 |
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| 276 |
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#define UNW_DEC_REG_GR(fmt, src, dst, arg) \
|
| 277 |
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printf ("\t%s:%s_gr(reg=r%u)\n", fmt, src, dst)
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| 278 |
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| 279 |
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#define UNW_DEC_RP_BR(fmt, dst, arg) \
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| 280 |
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printf ("\t%s:rp_br(reg=b%u)\n", fmt, dst)
|
| 281 |
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| 282 |
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#define UNW_DEC_REG_WHEN(fmt, reg, t, arg) \
|
| 283 |
|
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printf ("\t%s:%s_when(t=%lu)\n", fmt, reg, (unsigned long) t)
|
| 284 |
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| 285 |
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#define UNW_DEC_REG_SPREL(fmt, reg, spoff, arg) \
|
| 286 |
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printf ("\t%s:%s_sprel(spoff=0x%lx)\n", \
|
| 287 |
|
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fmt, reg, 4*(unsigned long)spoff)
|
| 288 |
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| 289 |
|
|
#define UNW_DEC_REG_PSPREL(fmt, reg, pspoff, arg) \
|
| 290 |
|
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printf ("\t%s:%s_psprel(pspoff=0x10-0x%lx)\n", \
|
| 291 |
|
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fmt, reg, 4*(unsigned long)pspoff)
|
| 292 |
|
|
|
| 293 |
|
|
#define UNW_DEC_GR_GR(fmt, grmask, gr, arg) \
|
| 294 |
|
|
do \
|
| 295 |
|
|
{ \
|
| 296 |
|
|
char grstr[20]; \
|
| 297 |
|
|
\
|
| 298 |
|
|
unw_print_grmask (grstr, grmask); \
|
| 299 |
|
|
printf ("\t%s:gr_gr(grmask=[%s],r%u)\n", fmt, grstr, gr); \
|
| 300 |
|
|
} \
|
| 301 |
|
|
while (0)
|
| 302 |
|
|
|
| 303 |
|
|
#define UNW_DEC_ABI(fmt, abi, context, arg) \
|
| 304 |
|
|
do \
|
| 305 |
|
|
{ \
|
| 306 |
|
|
static const char *abiname[] = \
|
| 307 |
|
|
{ \
|
| 308 |
|
|
"@svr4", "@hpux", "@nt" \
|
| 309 |
|
|
}; \
|
| 310 |
|
|
char buf[20]; \
|
| 311 |
|
|
const char *abistr = buf; \
|
| 312 |
|
|
\
|
| 313 |
|
|
if (abi < 3) \
|
| 314 |
|
|
abistr = abiname[abi]; \
|
| 315 |
|
|
else \
|
| 316 |
|
|
sprintf (buf, "0x%x", abi); \
|
| 317 |
|
|
printf ("\t%s:unwabi(abi=%s,context=0x%02x)\n", \
|
| 318 |
|
|
fmt, abistr, context); \
|
| 319 |
|
|
} \
|
| 320 |
|
|
while (0)
|
| 321 |
|
|
|
| 322 |
|
|
#define UNW_DEC_PRIUNAT_GR(fmt, r, arg) \
|
| 323 |
|
|
printf ("\t%s:priunat_gr(reg=r%u)\n", fmt, r)
|
| 324 |
|
|
|
| 325 |
|
|
#define UNW_DEC_PRIUNAT_WHEN_GR(fmt, t, arg) \
|
| 326 |
|
|
printf ("\t%s:priunat_when_gr(t=%lu)\n", fmt, (unsigned long) t)
|
| 327 |
|
|
|
| 328 |
|
|
#define UNW_DEC_PRIUNAT_WHEN_MEM(fmt, t, arg) \
|
| 329 |
|
|
printf ("\t%s:priunat_when_mem(t=%lu)\n", fmt, (unsigned long) t)
|
| 330 |
|
|
|
| 331 |
|
|
#define UNW_DEC_PRIUNAT_PSPREL(fmt, pspoff, arg) \
|
| 332 |
|
|
printf ("\t%s:priunat_psprel(pspoff=0x10-0x%lx)\n", \
|
| 333 |
|
|
fmt, 4*(unsigned long)pspoff)
|
| 334 |
|
|
|
| 335 |
|
|
#define UNW_DEC_PRIUNAT_SPREL(fmt, spoff, arg) \
|
| 336 |
|
|
printf ("\t%s:priunat_sprel(spoff=0x%lx)\n", \
|
| 337 |
|
|
fmt, 4*(unsigned long)spoff)
|
| 338 |
|
|
|
| 339 |
|
|
#define UNW_DEC_MEM_STACK_F(fmt, t, size, arg) \
|
| 340 |
|
|
printf ("\t%s:mem_stack_f(t=%lu,size=%lu)\n", \
|
| 341 |
|
|
fmt, (unsigned long) t, 16*(unsigned long)size)
|
| 342 |
|
|
|
| 343 |
|
|
#define UNW_DEC_MEM_STACK_V(fmt, t, arg) \
|
| 344 |
|
|
printf ("\t%s:mem_stack_v(t=%lu)\n", fmt, (unsigned long) t)
|
| 345 |
|
|
|
| 346 |
|
|
#define UNW_DEC_SPILL_BASE(fmt, pspoff, arg) \
|
| 347 |
|
|
printf ("\t%s:spill_base(pspoff=0x10-0x%lx)\n", \
|
| 348 |
|
|
fmt, 4*(unsigned long)pspoff)
|
| 349 |
|
|
|
| 350 |
|
|
#define UNW_DEC_SPILL_MASK(fmt, dp, arg) \
|
| 351 |
|
|
do \
|
| 352 |
|
|
{ \
|
| 353 |
|
|
static const char *spill_type = "-frb"; \
|
| 354 |
|
|
unsigned const char *imaskp = dp; \
|
| 355 |
|
|
unsigned char mask = 0; \
|
| 356 |
|
|
bfd_vma insn = 0; \
|
| 357 |
|
|
\
|
| 358 |
|
|
printf ("\t%s:spill_mask(imask=[", fmt); \
|
| 359 |
|
|
for (insn = 0; insn < unw_rlen; ++insn) \
|
| 360 |
|
|
{ \
|
| 361 |
|
|
if ((insn % 4) == 0) \
|
| 362 |
|
|
mask = *imaskp++; \
|
| 363 |
|
|
if (insn > 0 && (insn % 3) == 0) \
|
| 364 |
|
|
putchar (','); \
|
| 365 |
|
|
putchar (spill_type[(mask >> (2 * (3 - (insn & 0x3)))) & 0x3]); \
|
| 366 |
|
|
} \
|
| 367 |
|
|
printf ("])\n"); \
|
| 368 |
|
|
dp = imaskp; \
|
| 369 |
|
|
} \
|
| 370 |
|
|
while (0)
|
| 371 |
|
|
|
| 372 |
|
|
#define UNW_DEC_SPILL_SPREL(fmt, t, abreg, spoff, arg) \
|
| 373 |
|
|
do \
|
| 374 |
|
|
{ \
|
| 375 |
|
|
char regname[20]; \
|
| 376 |
|
|
\
|
| 377 |
|
|
unw_print_abreg (regname, abreg); \
|
| 378 |
|
|
printf ("\t%s:spill_sprel(reg=%s,t=%lu,spoff=0x%lx)\n", \
|
| 379 |
|
|
fmt, regname, (unsigned long) t, 4*(unsigned long)off); \
|
| 380 |
|
|
} \
|
| 381 |
|
|
while (0)
|
| 382 |
|
|
|
| 383 |
|
|
#define UNW_DEC_SPILL_PSPREL(fmt, t, abreg, pspoff, arg) \
|
| 384 |
|
|
do \
|
| 385 |
|
|
{ \
|
| 386 |
|
|
char regname[20]; \
|
| 387 |
|
|
\
|
| 388 |
|
|
unw_print_abreg (regname, abreg); \
|
| 389 |
|
|
printf ("\t%s:spill_psprel(reg=%s,t=%lu,pspoff=0x10-0x%lx)\n", \
|
| 390 |
|
|
fmt, regname, (unsigned long) t, 4*(unsigned long)pspoff); \
|
| 391 |
|
|
} \
|
| 392 |
|
|
while (0)
|
| 393 |
|
|
|
| 394 |
|
|
#define UNW_DEC_RESTORE(fmt, t, abreg, arg) \
|
| 395 |
|
|
do \
|
| 396 |
|
|
{ \
|
| 397 |
|
|
char regname[20]; \
|
| 398 |
|
|
\
|
| 399 |
|
|
unw_print_abreg (regname, abreg); \
|
| 400 |
|
|
printf ("\t%s:restore(t=%lu,reg=%s)\n", \
|
| 401 |
|
|
fmt, (unsigned long) t, regname); \
|
| 402 |
|
|
} \
|
| 403 |
|
|
while (0)
|
| 404 |
|
|
|
| 405 |
|
|
#define UNW_DEC_SPILL_REG(fmt, t, abreg, x, ytreg, arg) \
|
| 406 |
|
|
do \
|
| 407 |
|
|
{ \
|
| 408 |
|
|
char abregname[20], tregname[20]; \
|
| 409 |
|
|
\
|
| 410 |
|
|
unw_print_abreg (abregname, abreg); \
|
| 411 |
|
|
unw_print_xyreg (tregname, x, ytreg); \
|
| 412 |
|
|
printf ("\t%s:spill_reg(t=%lu,reg=%s,treg=%s)\n", \
|
| 413 |
|
|
fmt, (unsigned long) t, abregname, tregname); \
|
| 414 |
|
|
} \
|
| 415 |
|
|
while (0)
|
| 416 |
|
|
|
| 417 |
|
|
#define UNW_DEC_SPILL_SPREL_P(fmt, qp, t, abreg, spoff, arg) \
|
| 418 |
|
|
do \
|
| 419 |
|
|
{ \
|
| 420 |
|
|
char regname[20]; \
|
| 421 |
|
|
\
|
| 422 |
|
|
unw_print_abreg (regname, abreg); \
|
| 423 |
|
|
printf ("\t%s:spill_sprel_p(qp=p%u,t=%lu,reg=%s,spoff=0x%lx)\n", \
|
| 424 |
|
|
fmt, qp, (unsigned long) t, regname, 4 * (unsigned long)spoff); \
|
| 425 |
|
|
} \
|
| 426 |
|
|
while (0)
|
| 427 |
|
|
|
| 428 |
|
|
#define UNW_DEC_SPILL_PSPREL_P(fmt, qp, t, abreg, pspoff, arg) \
|
| 429 |
|
|
do \
|
| 430 |
|
|
{ \
|
| 431 |
|
|
char regname[20]; \
|
| 432 |
|
|
\
|
| 433 |
|
|
unw_print_abreg (regname, abreg); \
|
| 434 |
|
|
printf ("\t%s:spill_psprel_p(qp=p%u,t=%lu,reg=%s,pspoff=0x10-0x%lx)\n",\
|
| 435 |
|
|
fmt, qp, (unsigned long) t, regname, 4*(unsigned long)pspoff);\
|
| 436 |
|
|
} \
|
| 437 |
|
|
while (0)
|
| 438 |
|
|
|
| 439 |
|
|
#define UNW_DEC_RESTORE_P(fmt, qp, t, abreg, arg) \
|
| 440 |
|
|
do \
|
| 441 |
|
|
{ \
|
| 442 |
|
|
char regname[20]; \
|
| 443 |
|
|
\
|
| 444 |
|
|
unw_print_abreg (regname, abreg); \
|
| 445 |
|
|
printf ("\t%s:restore_p(qp=p%u,t=%lu,reg=%s)\n", \
|
| 446 |
|
|
fmt, qp, (unsigned long) t, regname); \
|
| 447 |
|
|
} \
|
| 448 |
|
|
while (0)
|
| 449 |
|
|
|
| 450 |
|
|
#define UNW_DEC_SPILL_REG_P(fmt, qp, t, abreg, x, ytreg, arg) \
|
| 451 |
|
|
do \
|
| 452 |
|
|
{ \
|
| 453 |
|
|
char regname[20], tregname[20]; \
|
| 454 |
|
|
\
|
| 455 |
|
|
unw_print_abreg (regname, abreg); \
|
| 456 |
|
|
unw_print_xyreg (tregname, x, ytreg); \
|
| 457 |
|
|
printf ("\t%s:spill_reg_p(qp=p%u,t=%lu,reg=%s,treg=%s)\n", \
|
| 458 |
|
|
fmt, qp, (unsigned long) t, regname, tregname); \
|
| 459 |
|
|
} \
|
| 460 |
|
|
while (0)
|
| 461 |
|
|
|
| 462 |
|
|
#define UNW_DEC_LABEL_STATE(fmt, label, arg) \
|
| 463 |
|
|
printf ("\t%s:label_state(label=%lu)\n", fmt, (unsigned long) label)
|
| 464 |
|
|
|
| 465 |
|
|
#define UNW_DEC_COPY_STATE(fmt, label, arg) \
|
| 466 |
|
|
printf ("\t%s:copy_state(label=%lu)\n", fmt, (unsigned long) label)
|
| 467 |
|
|
|
| 468 |
|
|
#define UNW_DEC_EPILOGUE(fmt, t, ecount, arg) \
|
| 469 |
|
|
printf ("\t%s:epilogue(t=%lu,ecount=%lu)\n", \
|
| 470 |
|
|
fmt, (unsigned long) t, (unsigned long) ecount)
|
| 471 |
|
|
|
| 472 |
|
|
/*
|
| 473 |
|
|
* Generic IA-64 unwind info decoder.
|
| 474 |
|
|
*
|
| 475 |
|
|
* This file is used both by the Linux kernel and objdump. Please
|
| 476 |
|
|
* keep the two copies of this file in sync (modulo differences in the
|
| 477 |
|
|
* prototypes...).
|
| 478 |
|
|
*
|
| 479 |
|
|
* You need to customize the decoder by defining the following
|
| 480 |
|
|
* macros/constants before including this file:
|
| 481 |
|
|
*
|
| 482 |
|
|
* Types:
|
| 483 |
|
|
* unw_word Unsigned integer type with at least 64 bits
|
| 484 |
|
|
*
|
| 485 |
|
|
* Register names:
|
| 486 |
|
|
* UNW_REG_BSP
|
| 487 |
|
|
* UNW_REG_BSPSTORE
|
| 488 |
|
|
* UNW_REG_FPSR
|
| 489 |
|
|
* UNW_REG_LC
|
| 490 |
|
|
* UNW_REG_PFS
|
| 491 |
|
|
* UNW_REG_PR
|
| 492 |
|
|
* UNW_REG_RNAT
|
| 493 |
|
|
* UNW_REG_PSP
|
| 494 |
|
|
* UNW_REG_RP
|
| 495 |
|
|
* UNW_REG_UNAT
|
| 496 |
|
|
*
|
| 497 |
|
|
* Decoder action macros:
|
| 498 |
|
|
* UNW_DEC_BAD_CODE(code)
|
| 499 |
|
|
* UNW_DEC_ABI(fmt,abi,context,arg)
|
| 500 |
|
|
* UNW_DEC_BR_GR(fmt,brmask,gr,arg)
|
| 501 |
|
|
* UNW_DEC_BR_MEM(fmt,brmask,arg)
|
| 502 |
|
|
* UNW_DEC_COPY_STATE(fmt,label,arg)
|
| 503 |
|
|
* UNW_DEC_EPILOGUE(fmt,t,ecount,arg)
|
| 504 |
|
|
* UNW_DEC_FRGR_MEM(fmt,grmask,frmask,arg)
|
| 505 |
|
|
* UNW_DEC_FR_MEM(fmt,frmask,arg)
|
| 506 |
|
|
* UNW_DEC_GR_GR(fmt,grmask,gr,arg)
|
| 507 |
|
|
* UNW_DEC_GR_MEM(fmt,grmask,arg)
|
| 508 |
|
|
* UNW_DEC_LABEL_STATE(fmt,label,arg)
|
| 509 |
|
|
* UNW_DEC_MEM_STACK_F(fmt,t,size,arg)
|
| 510 |
|
|
* UNW_DEC_MEM_STACK_V(fmt,t,arg)
|
| 511 |
|
|
* UNW_DEC_PRIUNAT_GR(fmt,r,arg)
|
| 512 |
|
|
* UNW_DEC_PRIUNAT_WHEN_GR(fmt,t,arg)
|
| 513 |
|
|
* UNW_DEC_PRIUNAT_WHEN_MEM(fmt,t,arg)
|
| 514 |
|
|
* UNW_DEC_PRIUNAT_WHEN_PSPREL(fmt,pspoff,arg)
|
| 515 |
|
|
* UNW_DEC_PRIUNAT_WHEN_SPREL(fmt,spoff,arg)
|
| 516 |
|
|
* UNW_DEC_PROLOGUE(fmt,body,rlen,arg)
|
| 517 |
|
|
* UNW_DEC_PROLOGUE_GR(fmt,rlen,mask,grsave,arg)
|
| 518 |
|
|
* UNW_DEC_REG_PSPREL(fmt,reg,pspoff,arg)
|
| 519 |
|
|
* UNW_DEC_REG_REG(fmt,src,dst,arg)
|
| 520 |
|
|
* UNW_DEC_REG_SPREL(fmt,reg,spoff,arg)
|
| 521 |
|
|
* UNW_DEC_REG_WHEN(fmt,reg,t,arg)
|
| 522 |
|
|
* UNW_DEC_RESTORE(fmt,t,abreg,arg)
|
| 523 |
|
|
* UNW_DEC_RESTORE_P(fmt,qp,t,abreg,arg)
|
| 524 |
|
|
* UNW_DEC_SPILL_BASE(fmt,pspoff,arg)
|
| 525 |
|
|
* UNW_DEC_SPILL_MASK(fmt,imaskp,arg)
|
| 526 |
|
|
* UNW_DEC_SPILL_PSPREL(fmt,t,abreg,pspoff,arg)
|
| 527 |
|
|
* UNW_DEC_SPILL_PSPREL_P(fmt,qp,t,abreg,pspoff,arg)
|
| 528 |
|
|
* UNW_DEC_SPILL_REG(fmt,t,abreg,x,ytreg,arg)
|
| 529 |
|
|
* UNW_DEC_SPILL_REG_P(fmt,qp,t,abreg,x,ytreg,arg)
|
| 530 |
|
|
* UNW_DEC_SPILL_SPREL(fmt,t,abreg,spoff,arg)
|
| 531 |
|
|
* UNW_DEC_SPILL_SPREL_P(fmt,qp,t,abreg,pspoff,arg)
|
| 532 |
|
|
*/
|
| 533 |
|
|
|
| 534 |
|
|
static unw_word unw_decode_uleb128 (const unsigned char **);
|
| 535 |
|
|
static const unsigned char *unw_decode_x1
|
| 536 |
|
|
(const unsigned char *, unsigned int, void *);
|
| 537 |
|
|
static const unsigned char *unw_decode_x2
|
| 538 |
|
|
(const unsigned char *, unsigned int, void *);
|
| 539 |
|
|
static const unsigned char *unw_decode_x3
|
| 540 |
|
|
(const unsigned char *, unsigned int, void *);
|
| 541 |
|
|
static const unsigned char *unw_decode_x4
|
| 542 |
|
|
(const unsigned char *, unsigned int, void *);
|
| 543 |
|
|
static const unsigned char *unw_decode_r1
|
| 544 |
|
|
(const unsigned char *, unsigned int, void *);
|
| 545 |
|
|
static const unsigned char *unw_decode_r2
|
| 546 |
|
|
(const unsigned char *, unsigned int, void *);
|
| 547 |
|
|
static const unsigned char *unw_decode_r3
|
| 548 |
|
|
(const unsigned char *, unsigned int, void *);
|
| 549 |
|
|
static const unsigned char *unw_decode_p1
|
| 550 |
|
|
(const unsigned char *, unsigned int, void *);
|
| 551 |
|
|
static const unsigned char *unw_decode_p2_p5
|
| 552 |
|
|
(const unsigned char *, unsigned int, void *);
|
| 553 |
|
|
static const unsigned char *unw_decode_p6
|
| 554 |
|
|
(const unsigned char *, unsigned int, void *);
|
| 555 |
|
|
static const unsigned char *unw_decode_p7_p10
|
| 556 |
|
|
(const unsigned char *, unsigned int, void *);
|
| 557 |
|
|
static const unsigned char *unw_decode_b1
|
| 558 |
|
|
(const unsigned char *, unsigned int, void *);
|
| 559 |
|
|
static const unsigned char *unw_decode_b2
|
| 560 |
|
|
(const unsigned char *, unsigned int, void *);
|
| 561 |
|
|
static const unsigned char *unw_decode_b3_x4
|
| 562 |
|
|
(const unsigned char *, unsigned int, void *);
|
| 563 |
|
|
|
| 564 |
|
|
static unw_word
|
| 565 |
|
|
unw_decode_uleb128 (const unsigned char **dpp)
|
| 566 |
|
|
{
|
| 567 |
|
|
unsigned shift = 0;
|
| 568 |
|
|
unw_word byte, result = 0;
|
| 569 |
|
|
const unsigned char *bp = *dpp;
|
| 570 |
|
|
|
| 571 |
|
|
while (1)
|
| 572 |
|
|
{
|
| 573 |
|
|
byte = *bp++;
|
| 574 |
|
|
result |= (byte & 0x7f) << shift;
|
| 575 |
|
|
|
| 576 |
|
|
if ((byte & 0x80) == 0)
|
| 577 |
|
|
break;
|
| 578 |
|
|
|
| 579 |
|
|
shift += 7;
|
| 580 |
|
|
}
|
| 581 |
|
|
|
| 582 |
|
|
*dpp = bp;
|
| 583 |
|
|
|
| 584 |
|
|
return result;
|
| 585 |
|
|
}
|
| 586 |
|
|
|
| 587 |
|
|
static const unsigned char *
|
| 588 |
|
|
unw_decode_x1 (const unsigned char *dp, unsigned int code ATTRIBUTE_UNUSED,
|
| 589 |
|
|
void *arg ATTRIBUTE_UNUSED)
|
| 590 |
|
|
{
|
| 591 |
|
|
unsigned char byte1, abreg;
|
| 592 |
|
|
unw_word t, off;
|
| 593 |
|
|
|
| 594 |
|
|
byte1 = *dp++;
|
| 595 |
|
|
t = unw_decode_uleb128 (&dp);
|
| 596 |
|
|
off = unw_decode_uleb128 (&dp);
|
| 597 |
|
|
abreg = (byte1 & 0x7f);
|
| 598 |
|
|
if (byte1 & 0x80)
|
| 599 |
|
|
UNW_DEC_SPILL_SPREL ("X1", t, abreg, off, arg);
|
| 600 |
|
|
else
|
| 601 |
|
|
UNW_DEC_SPILL_PSPREL ("X1", t, abreg, off, arg);
|
| 602 |
|
|
return dp;
|
| 603 |
|
|
}
|
| 604 |
|
|
|
| 605 |
|
|
static const unsigned char *
|
| 606 |
|
|
unw_decode_x2 (const unsigned char *dp, unsigned int code ATTRIBUTE_UNUSED,
|
| 607 |
|
|
void *arg ATTRIBUTE_UNUSED)
|
| 608 |
|
|
{
|
| 609 |
|
|
unsigned char byte1, byte2, abreg, x, ytreg;
|
| 610 |
|
|
unw_word t;
|
| 611 |
|
|
|
| 612 |
|
|
byte1 = *dp++;
|
| 613 |
|
|
byte2 = *dp++;
|
| 614 |
|
|
t = unw_decode_uleb128 (&dp);
|
| 615 |
|
|
abreg = (byte1 & 0x7f);
|
| 616 |
|
|
ytreg = byte2;
|
| 617 |
|
|
x = (byte1 >> 7) & 1;
|
| 618 |
|
|
if ((byte1 & 0x80) == 0 && ytreg == 0)
|
| 619 |
|
|
UNW_DEC_RESTORE ("X2", t, abreg, arg);
|
| 620 |
|
|
else
|
| 621 |
|
|
UNW_DEC_SPILL_REG ("X2", t, abreg, x, ytreg, arg);
|
| 622 |
|
|
return dp;
|
| 623 |
|
|
}
|
| 624 |
|
|
|
| 625 |
|
|
static const unsigned char *
|
| 626 |
|
|
unw_decode_x3 (const unsigned char *dp, unsigned int code ATTRIBUTE_UNUSED,
|
| 627 |
|
|
void *arg ATTRIBUTE_UNUSED)
|
| 628 |
|
|
{
|
| 629 |
|
|
unsigned char byte1, byte2, abreg, qp;
|
| 630 |
|
|
unw_word t, off;
|
| 631 |
|
|
|
| 632 |
|
|
byte1 = *dp++;
|
| 633 |
|
|
byte2 = *dp++;
|
| 634 |
|
|
t = unw_decode_uleb128 (&dp);
|
| 635 |
|
|
off = unw_decode_uleb128 (&dp);
|
| 636 |
|
|
|
| 637 |
|
|
qp = (byte1 & 0x3f);
|
| 638 |
|
|
abreg = (byte2 & 0x7f);
|
| 639 |
|
|
|
| 640 |
|
|
if (byte1 & 0x80)
|
| 641 |
|
|
UNW_DEC_SPILL_SPREL_P ("X3", qp, t, abreg, off, arg);
|
| 642 |
|
|
else
|
| 643 |
|
|
UNW_DEC_SPILL_PSPREL_P ("X3", qp, t, abreg, off, arg);
|
| 644 |
|
|
return dp;
|
| 645 |
|
|
}
|
| 646 |
|
|
|
| 647 |
|
|
static const unsigned char *
|
| 648 |
|
|
unw_decode_x4 (const unsigned char *dp, unsigned int code ATTRIBUTE_UNUSED,
|
| 649 |
|
|
void *arg ATTRIBUTE_UNUSED)
|
| 650 |
|
|
{
|
| 651 |
|
|
unsigned char byte1, byte2, byte3, qp, abreg, x, ytreg;
|
| 652 |
|
|
unw_word t;
|
| 653 |
|
|
|
| 654 |
|
|
byte1 = *dp++;
|
| 655 |
|
|
byte2 = *dp++;
|
| 656 |
|
|
byte3 = *dp++;
|
| 657 |
|
|
t = unw_decode_uleb128 (&dp);
|
| 658 |
|
|
|
| 659 |
|
|
qp = (byte1 & 0x3f);
|
| 660 |
|
|
abreg = (byte2 & 0x7f);
|
| 661 |
|
|
x = (byte2 >> 7) & 1;
|
| 662 |
|
|
ytreg = byte3;
|
| 663 |
|
|
|
| 664 |
|
|
if ((byte2 & 0x80) == 0 && byte3 == 0)
|
| 665 |
|
|
UNW_DEC_RESTORE_P ("X4", qp, t, abreg, arg);
|
| 666 |
|
|
else
|
| 667 |
|
|
UNW_DEC_SPILL_REG_P ("X4", qp, t, abreg, x, ytreg, arg);
|
| 668 |
|
|
return dp;
|
| 669 |
|
|
}
|
| 670 |
|
|
|
| 671 |
|
|
static const unsigned char *
|
| 672 |
|
|
unw_decode_r1 (const unsigned char *dp, unsigned int code, void *arg)
|
| 673 |
|
|
{
|
| 674 |
|
|
int body = (code & 0x20) != 0;
|
| 675 |
|
|
unw_word rlen;
|
| 676 |
|
|
|
| 677 |
|
|
rlen = (code & 0x1f);
|
| 678 |
|
|
UNW_DEC_PROLOGUE ("R1", body, rlen, arg);
|
| 679 |
|
|
return dp;
|
| 680 |
|
|
}
|
| 681 |
|
|
|
| 682 |
|
|
static const unsigned char *
|
| 683 |
|
|
unw_decode_r2 (const unsigned char *dp, unsigned int code, void *arg)
|
| 684 |
|
|
{
|
| 685 |
|
|
unsigned char byte1, mask, grsave;
|
| 686 |
|
|
unw_word rlen;
|
| 687 |
|
|
|
| 688 |
|
|
byte1 = *dp++;
|
| 689 |
|
|
|
| 690 |
|
|
mask = ((code & 0x7) << 1) | ((byte1 >> 7) & 1);
|
| 691 |
|
|
grsave = (byte1 & 0x7f);
|
| 692 |
|
|
rlen = unw_decode_uleb128 (& dp);
|
| 693 |
|
|
UNW_DEC_PROLOGUE_GR ("R2", rlen, mask, grsave, arg);
|
| 694 |
|
|
return dp;
|
| 695 |
|
|
}
|
| 696 |
|
|
|
| 697 |
|
|
static const unsigned char *
|
| 698 |
|
|
unw_decode_r3 (const unsigned char *dp, unsigned int code, void *arg)
|
| 699 |
|
|
{
|
| 700 |
|
|
unw_word rlen;
|
| 701 |
|
|
|
| 702 |
|
|
rlen = unw_decode_uleb128 (& dp);
|
| 703 |
|
|
UNW_DEC_PROLOGUE ("R3", ((code & 0x3) == 1), rlen, arg);
|
| 704 |
|
|
return dp;
|
| 705 |
|
|
}
|
| 706 |
|
|
|
| 707 |
|
|
static const unsigned char *
|
| 708 |
|
|
unw_decode_p1 (const unsigned char *dp, unsigned int code,
|
| 709 |
|
|
void *arg ATTRIBUTE_UNUSED)
|
| 710 |
|
|
{
|
| 711 |
|
|
unsigned char brmask = (code & 0x1f);
|
| 712 |
|
|
|
| 713 |
|
|
UNW_DEC_BR_MEM ("P1", brmask, arg);
|
| 714 |
|
|
return dp;
|
| 715 |
|
|
}
|
| 716 |
|
|
|
| 717 |
|
|
static const unsigned char *
|
| 718 |
|
|
unw_decode_p2_p5 (const unsigned char *dp, unsigned int code,
|
| 719 |
|
|
void *arg ATTRIBUTE_UNUSED)
|
| 720 |
|
|
{
|
| 721 |
|
|
if ((code & 0x10) == 0)
|
| 722 |
|
|
{
|
| 723 |
|
|
unsigned char byte1 = *dp++;
|
| 724 |
|
|
|
| 725 |
|
|
UNW_DEC_BR_GR ("P2", ((code & 0xf) << 1) | ((byte1 >> 7) & 1),
|
| 726 |
|
|
(byte1 & 0x7f), arg);
|
| 727 |
|
|
}
|
| 728 |
|
|
else if ((code & 0x08) == 0)
|
| 729 |
|
|
{
|
| 730 |
|
|
unsigned char byte1 = *dp++, r, dst;
|
| 731 |
|
|
|
| 732 |
|
|
r = ((code & 0x7) << 1) | ((byte1 >> 7) & 1);
|
| 733 |
|
|
dst = (byte1 & 0x7f);
|
| 734 |
|
|
switch (r)
|
| 735 |
|
|
{
|
| 736 |
|
|
case 0:
|
| 737 |
|
|
UNW_DEC_REG_GR ("P3", UNW_REG_PSP, dst, arg);
|
| 738 |
|
|
break;
|
| 739 |
|
|
case 1:
|
| 740 |
|
|
UNW_DEC_REG_GR ("P3", UNW_REG_RP, dst, arg);
|
| 741 |
|
|
break;
|
| 742 |
|
|
case 2:
|
| 743 |
|
|
UNW_DEC_REG_GR ("P3", UNW_REG_PFS, dst, arg);
|
| 744 |
|
|
break;
|
| 745 |
|
|
case 3:
|
| 746 |
|
|
UNW_DEC_REG_GR ("P3", UNW_REG_PR, dst, arg);
|
| 747 |
|
|
break;
|
| 748 |
|
|
case 4:
|
| 749 |
|
|
UNW_DEC_REG_GR ("P3", UNW_REG_UNAT, dst, arg);
|
| 750 |
|
|
break;
|
| 751 |
|
|
case 5:
|
| 752 |
|
|
UNW_DEC_REG_GR ("P3", UNW_REG_LC, dst, arg);
|
| 753 |
|
|
break;
|
| 754 |
|
|
case 6:
|
| 755 |
|
|
UNW_DEC_RP_BR ("P3", dst, arg);
|
| 756 |
|
|
break;
|
| 757 |
|
|
case 7:
|
| 758 |
|
|
UNW_DEC_REG_GR ("P3", UNW_REG_RNAT, dst, arg);
|
| 759 |
|
|
break;
|
| 760 |
|
|
case 8:
|
| 761 |
|
|
UNW_DEC_REG_GR ("P3", UNW_REG_BSP, dst, arg);
|
| 762 |
|
|
break;
|
| 763 |
|
|
case 9:
|
| 764 |
|
|
UNW_DEC_REG_GR ("P3", UNW_REG_BSPSTORE, dst, arg);
|
| 765 |
|
|
break;
|
| 766 |
|
|
case 10:
|
| 767 |
|
|
UNW_DEC_REG_GR ("P3", UNW_REG_FPSR, dst, arg);
|
| 768 |
|
|
break;
|
| 769 |
|
|
case 11:
|
| 770 |
|
|
UNW_DEC_PRIUNAT_GR ("P3", dst, arg);
|
| 771 |
|
|
break;
|
| 772 |
|
|
default:
|
| 773 |
|
|
UNW_DEC_BAD_CODE (r);
|
| 774 |
|
|
break;
|
| 775 |
|
|
}
|
| 776 |
|
|
}
|
| 777 |
|
|
else if ((code & 0x7) == 0)
|
| 778 |
|
|
UNW_DEC_SPILL_MASK ("P4", dp, arg);
|
| 779 |
|
|
else if ((code & 0x7) == 1)
|
| 780 |
|
|
{
|
| 781 |
|
|
unw_word grmask, frmask, byte1, byte2, byte3;
|
| 782 |
|
|
|
| 783 |
|
|
byte1 = *dp++;
|
| 784 |
|
|
byte2 = *dp++;
|
| 785 |
|
|
byte3 = *dp++;
|
| 786 |
|
|
grmask = ((byte1 >> 4) & 0xf);
|
| 787 |
|
|
frmask = ((byte1 & 0xf) << 16) | (byte2 << 8) | byte3;
|
| 788 |
|
|
UNW_DEC_FRGR_MEM ("P5", grmask, frmask, arg);
|
| 789 |
|
|
}
|
| 790 |
|
|
else
|
| 791 |
|
|
UNW_DEC_BAD_CODE (code);
|
| 792 |
|
|
|
| 793 |
|
|
return dp;
|
| 794 |
|
|
}
|
| 795 |
|
|
|
| 796 |
|
|
static const unsigned char *
|
| 797 |
|
|
unw_decode_p6 (const unsigned char *dp, unsigned int code,
|
| 798 |
|
|
void *arg ATTRIBUTE_UNUSED)
|
| 799 |
|
|
{
|
| 800 |
|
|
int gregs = (code & 0x10) != 0;
|
| 801 |
|
|
unsigned char mask = (code & 0x0f);
|
| 802 |
|
|
|
| 803 |
|
|
if (gregs)
|
| 804 |
|
|
UNW_DEC_GR_MEM ("P6", mask, arg);
|
| 805 |
|
|
else
|
| 806 |
|
|
UNW_DEC_FR_MEM ("P6", mask, arg);
|
| 807 |
|
|
return dp;
|
| 808 |
|
|
}
|
| 809 |
|
|
|
| 810 |
|
|
static const unsigned char *
|
| 811 |
|
|
unw_decode_p7_p10 (const unsigned char *dp, unsigned int code, void *arg)
|
| 812 |
|
|
{
|
| 813 |
|
|
unsigned char r, byte1, byte2;
|
| 814 |
|
|
unw_word t, size;
|
| 815 |
|
|
|
| 816 |
|
|
if ((code & 0x10) == 0)
|
| 817 |
|
|
{
|
| 818 |
|
|
r = (code & 0xf);
|
| 819 |
|
|
t = unw_decode_uleb128 (&dp);
|
| 820 |
|
|
switch (r)
|
| 821 |
|
|
{
|
| 822 |
|
|
case 0:
|
| 823 |
|
|
size = unw_decode_uleb128 (&dp);
|
| 824 |
|
|
UNW_DEC_MEM_STACK_F ("P7", t, size, arg);
|
| 825 |
|
|
break;
|
| 826 |
|
|
|
| 827 |
|
|
case 1:
|
| 828 |
|
|
UNW_DEC_MEM_STACK_V ("P7", t, arg);
|
| 829 |
|
|
break;
|
| 830 |
|
|
case 2:
|
| 831 |
|
|
UNW_DEC_SPILL_BASE ("P7", t, arg);
|
| 832 |
|
|
break;
|
| 833 |
|
|
case 3:
|
| 834 |
|
|
UNW_DEC_REG_SPREL ("P7", UNW_REG_PSP, t, arg);
|
| 835 |
|
|
break;
|
| 836 |
|
|
case 4:
|
| 837 |
|
|
UNW_DEC_REG_WHEN ("P7", UNW_REG_RP, t, arg);
|
| 838 |
|
|
break;
|
| 839 |
|
|
case 5:
|
| 840 |
|
|
UNW_DEC_REG_PSPREL ("P7", UNW_REG_RP, t, arg);
|
| 841 |
|
|
break;
|
| 842 |
|
|
case 6:
|
| 843 |
|
|
UNW_DEC_REG_WHEN ("P7", UNW_REG_PFS, t, arg);
|
| 844 |
|
|
break;
|
| 845 |
|
|
case 7:
|
| 846 |
|
|
UNW_DEC_REG_PSPREL ("P7", UNW_REG_PFS, t, arg);
|
| 847 |
|
|
break;
|
| 848 |
|
|
case 8:
|
| 849 |
|
|
UNW_DEC_REG_WHEN ("P7", UNW_REG_PR, t, arg);
|
| 850 |
|
|
break;
|
| 851 |
|
|
case 9:
|
| 852 |
|
|
UNW_DEC_REG_PSPREL ("P7", UNW_REG_PR, t, arg);
|
| 853 |
|
|
break;
|
| 854 |
|
|
case 10:
|
| 855 |
|
|
UNW_DEC_REG_WHEN ("P7", UNW_REG_LC, t, arg);
|
| 856 |
|
|
break;
|
| 857 |
|
|
case 11:
|
| 858 |
|
|
UNW_DEC_REG_PSPREL ("P7", UNW_REG_LC, t, arg);
|
| 859 |
|
|
break;
|
| 860 |
|
|
case 12:
|
| 861 |
|
|
UNW_DEC_REG_WHEN ("P7", UNW_REG_UNAT, t, arg);
|
| 862 |
|
|
break;
|
| 863 |
|
|
case 13:
|
| 864 |
|
|
UNW_DEC_REG_PSPREL ("P7", UNW_REG_UNAT, t, arg);
|
| 865 |
|
|
break;
|
| 866 |
|
|
case 14:
|
| 867 |
|
|
UNW_DEC_REG_WHEN ("P7", UNW_REG_FPSR, t, arg);
|
| 868 |
|
|
break;
|
| 869 |
|
|
case 15:
|
| 870 |
|
|
UNW_DEC_REG_PSPREL ("P7", UNW_REG_FPSR, t, arg);
|
| 871 |
|
|
break;
|
| 872 |
|
|
default:
|
| 873 |
|
|
UNW_DEC_BAD_CODE (r);
|
| 874 |
|
|
break;
|
| 875 |
|
|
}
|
| 876 |
|
|
}
|
| 877 |
|
|
else
|
| 878 |
|
|
{
|
| 879 |
|
|
switch (code & 0xf)
|
| 880 |
|
|
{
|
| 881 |
|
|
case 0x0: /* p8 */
|
| 882 |
|
|
{
|
| 883 |
|
|
r = *dp++;
|
| 884 |
|
|
t = unw_decode_uleb128 (&dp);
|
| 885 |
|
|
switch (r)
|
| 886 |
|
|
{
|
| 887 |
|
|
case 1:
|
| 888 |
|
|
UNW_DEC_REG_SPREL ("P8", UNW_REG_RP, t, arg);
|
| 889 |
|
|
break;
|
| 890 |
|
|
case 2:
|
| 891 |
|
|
UNW_DEC_REG_SPREL ("P8", UNW_REG_PFS, t, arg);
|
| 892 |
|
|
break;
|
| 893 |
|
|
case 3:
|
| 894 |
|
|
UNW_DEC_REG_SPREL ("P8", UNW_REG_PR, t, arg);
|
| 895 |
|
|
break;
|
| 896 |
|
|
case 4:
|
| 897 |
|
|
UNW_DEC_REG_SPREL ("P8", UNW_REG_LC, t, arg);
|
| 898 |
|
|
break;
|
| 899 |
|
|
case 5:
|
| 900 |
|
|
UNW_DEC_REG_SPREL ("P8", UNW_REG_UNAT, t, arg);
|
| 901 |
|
|
break;
|
| 902 |
|
|
case 6:
|
| 903 |
|
|
UNW_DEC_REG_SPREL ("P8", UNW_REG_FPSR, t, arg);
|
| 904 |
|
|
break;
|
| 905 |
|
|
case 7:
|
| 906 |
|
|
UNW_DEC_REG_WHEN ("P8", UNW_REG_BSP, t, arg);
|
| 907 |
|
|
break;
|
| 908 |
|
|
case 8:
|
| 909 |
|
|
UNW_DEC_REG_PSPREL ("P8", UNW_REG_BSP, t, arg);
|
| 910 |
|
|
break;
|
| 911 |
|
|
case 9:
|
| 912 |
|
|
UNW_DEC_REG_SPREL ("P8", UNW_REG_BSP, t, arg);
|
| 913 |
|
|
break;
|
| 914 |
|
|
case 10:
|
| 915 |
|
|
UNW_DEC_REG_WHEN ("P8", UNW_REG_BSPSTORE, t, arg);
|
| 916 |
|
|
break;
|
| 917 |
|
|
case 11:
|
| 918 |
|
|
UNW_DEC_REG_PSPREL ("P8", UNW_REG_BSPSTORE, t, arg);
|
| 919 |
|
|
break;
|
| 920 |
|
|
case 12:
|
| 921 |
|
|
UNW_DEC_REG_SPREL ("P8", UNW_REG_BSPSTORE, t, arg);
|
| 922 |
|
|
break;
|
| 923 |
|
|
case 13:
|
| 924 |
|
|
UNW_DEC_REG_WHEN ("P8", UNW_REG_RNAT, t, arg);
|
| 925 |
|
|
break;
|
| 926 |
|
|
case 14:
|
| 927 |
|
|
UNW_DEC_REG_PSPREL ("P8", UNW_REG_RNAT, t, arg);
|
| 928 |
|
|
break;
|
| 929 |
|
|
case 15:
|
| 930 |
|
|
UNW_DEC_REG_SPREL ("P8", UNW_REG_RNAT, t, arg);
|
| 931 |
|
|
break;
|
| 932 |
|
|
case 16:
|
| 933 |
|
|
UNW_DEC_PRIUNAT_WHEN_GR ("P8", t, arg);
|
| 934 |
|
|
break;
|
| 935 |
|
|
case 17:
|
| 936 |
|
|
UNW_DEC_PRIUNAT_PSPREL ("P8", t, arg);
|
| 937 |
|
|
break;
|
| 938 |
|
|
case 18:
|
| 939 |
|
|
UNW_DEC_PRIUNAT_SPREL ("P8", t, arg);
|
| 940 |
|
|
break;
|
| 941 |
|
|
case 19:
|
| 942 |
|
|
UNW_DEC_PRIUNAT_WHEN_MEM ("P8", t, arg);
|
| 943 |
|
|
break;
|
| 944 |
|
|
default:
|
| 945 |
|
|
UNW_DEC_BAD_CODE (r);
|
| 946 |
|
|
break;
|
| 947 |
|
|
}
|
| 948 |
|
|
}
|
| 949 |
|
|
break;
|
| 950 |
|
|
|
| 951 |
|
|
case 0x1:
|
| 952 |
|
|
byte1 = *dp++;
|
| 953 |
|
|
byte2 = *dp++;
|
| 954 |
|
|
UNW_DEC_GR_GR ("P9", (byte1 & 0xf), (byte2 & 0x7f), arg);
|
| 955 |
|
|
break;
|
| 956 |
|
|
|
| 957 |
|
|
case 0xf: /* p10 */
|
| 958 |
|
|
byte1 = *dp++;
|
| 959 |
|
|
byte2 = *dp++;
|
| 960 |
|
|
UNW_DEC_ABI ("P10", byte1, byte2, arg);
|
| 961 |
|
|
break;
|
| 962 |
|
|
|
| 963 |
|
|
case 0x9:
|
| 964 |
|
|
return unw_decode_x1 (dp, code, arg);
|
| 965 |
|
|
|
| 966 |
|
|
case 0xa:
|
| 967 |
|
|
return unw_decode_x2 (dp, code, arg);
|
| 968 |
|
|
|
| 969 |
|
|
case 0xb:
|
| 970 |
|
|
return unw_decode_x3 (dp, code, arg);
|
| 971 |
|
|
|
| 972 |
|
|
case 0xc:
|
| 973 |
|
|
return unw_decode_x4 (dp, code, arg);
|
| 974 |
|
|
|
| 975 |
|
|
default:
|
| 976 |
|
|
UNW_DEC_BAD_CODE (code);
|
| 977 |
|
|
break;
|
| 978 |
|
|
}
|
| 979 |
|
|
}
|
| 980 |
|
|
return dp;
|
| 981 |
|
|
}
|
| 982 |
|
|
|
| 983 |
|
|
static const unsigned char *
|
| 984 |
|
|
unw_decode_b1 (const unsigned char *dp, unsigned int code,
|
| 985 |
|
|
void *arg ATTRIBUTE_UNUSED)
|
| 986 |
|
|
{
|
| 987 |
|
|
unw_word label = (code & 0x1f);
|
| 988 |
|
|
|
| 989 |
|
|
if ((code & 0x20) != 0)
|
| 990 |
|
|
UNW_DEC_COPY_STATE ("B1", label, arg);
|
| 991 |
|
|
else
|
| 992 |
|
|
UNW_DEC_LABEL_STATE ("B1", label, arg);
|
| 993 |
|
|
return dp;
|
| 994 |
|
|
}
|
| 995 |
|
|
|
| 996 |
|
|
static const unsigned char *
|
| 997 |
|
|
unw_decode_b2 (const unsigned char *dp, unsigned int code,
|
| 998 |
|
|
void *arg ATTRIBUTE_UNUSED)
|
| 999 |
|
|
{
|
| 1000 |
|
|
unw_word t;
|
| 1001 |
|
|
|
| 1002 |
|
|
t = unw_decode_uleb128 (& dp);
|
| 1003 |
|
|
UNW_DEC_EPILOGUE ("B2", t, (code & 0x1f), arg);
|
| 1004 |
|
|
return dp;
|
| 1005 |
|
|
}
|
| 1006 |
|
|
|
| 1007 |
|
|
static const unsigned char *
|
| 1008 |
|
|
unw_decode_b3_x4 (const unsigned char *dp, unsigned int code, void *arg)
|
| 1009 |
|
|
{
|
| 1010 |
|
|
unw_word t, ecount, label;
|
| 1011 |
|
|
|
| 1012 |
|
|
if ((code & 0x10) == 0)
|
| 1013 |
|
|
{
|
| 1014 |
|
|
t = unw_decode_uleb128 (&dp);
|
| 1015 |
|
|
ecount = unw_decode_uleb128 (&dp);
|
| 1016 |
|
|
UNW_DEC_EPILOGUE ("B3", t, ecount, arg);
|
| 1017 |
|
|
}
|
| 1018 |
|
|
else if ((code & 0x07) == 0)
|
| 1019 |
|
|
{
|
| 1020 |
|
|
label = unw_decode_uleb128 (&dp);
|
| 1021 |
|
|
if ((code & 0x08) != 0)
|
| 1022 |
|
|
UNW_DEC_COPY_STATE ("B4", label, arg);
|
| 1023 |
|
|
else
|
| 1024 |
|
|
UNW_DEC_LABEL_STATE ("B4", label, arg);
|
| 1025 |
|
|
}
|
| 1026 |
|
|
else
|
| 1027 |
|
|
switch (code & 0x7)
|
| 1028 |
|
|
{
|
| 1029 |
|
|
case 1:
|
| 1030 |
|
|
return unw_decode_x1 (dp, code, arg);
|
| 1031 |
|
|
case 2:
|
| 1032 |
|
|
return unw_decode_x2 (dp, code, arg);
|
| 1033 |
|
|
case 3:
|
| 1034 |
|
|
return unw_decode_x3 (dp, code, arg);
|
| 1035 |
|
|
case 4:
|
| 1036 |
|
|
return unw_decode_x4 (dp, code, arg);
|
| 1037 |
|
|
default:
|
| 1038 |
|
|
UNW_DEC_BAD_CODE (code);
|
| 1039 |
|
|
break;
|
| 1040 |
|
|
}
|
| 1041 |
|
|
return dp;
|
| 1042 |
|
|
}
|
| 1043 |
|
|
|
| 1044 |
|
|
typedef const unsigned char *(*unw_decoder)
|
| 1045 |
|
|
(const unsigned char *, unsigned int, void *);
|
| 1046 |
|
|
|
| 1047 |
|
|
static unw_decoder unw_decode_table[2][8] =
|
| 1048 |
|
|
{
|
| 1049 |
|
|
/* prologue table: */
|
| 1050 |
|
|
{
|
| 1051 |
|
|
unw_decode_r1, /* 0 */
|
| 1052 |
|
|
unw_decode_r1,
|
| 1053 |
|
|
unw_decode_r2,
|
| 1054 |
|
|
unw_decode_r3,
|
| 1055 |
|
|
unw_decode_p1, /* 4 */
|
| 1056 |
|
|
unw_decode_p2_p5,
|
| 1057 |
|
|
unw_decode_p6,
|
| 1058 |
|
|
unw_decode_p7_p10
|
| 1059 |
|
|
},
|
| 1060 |
|
|
{
|
| 1061 |
|
|
unw_decode_r1, /* 0 */
|
| 1062 |
|
|
unw_decode_r1,
|
| 1063 |
|
|
unw_decode_r2,
|
| 1064 |
|
|
unw_decode_r3,
|
| 1065 |
|
|
unw_decode_b1, /* 4 */
|
| 1066 |
|
|
unw_decode_b1,
|
| 1067 |
|
|
unw_decode_b2,
|
| 1068 |
|
|
unw_decode_b3_x4
|
| 1069 |
|
|
}
|
| 1070 |
|
|
};
|
| 1071 |
|
|
|
| 1072 |
|
|
/* Decode one descriptor and return address of next descriptor. */
|
| 1073 |
|
|
const unsigned char *
|
| 1074 |
|
|
unw_decode (const unsigned char *dp, int inside_body,
|
| 1075 |
|
|
void *ptr_inside_body)
|
| 1076 |
|
|
{
|
| 1077 |
|
|
unw_decoder decoder;
|
| 1078 |
|
|
unsigned char code;
|
| 1079 |
|
|
|
| 1080 |
|
|
code = *dp++;
|
| 1081 |
|
|
decoder = unw_decode_table[inside_body][code >> 5];
|
| 1082 |
|
|
return (*decoder) (dp, code, ptr_inside_body);
|
| 1083 |
|
|
}
|
