#include "unwind-ia64.h"
#include <stdio.h>
#include <string.h>
#if __GNUC__ >= 2
#define BFD64
#endif
#include "bfd.h"
static bfd_vma unw_rlen = 0;
static void unw_print_brmask (char *, unsigned int);
static void unw_print_grmask (char *, unsigned int);
static void unw_print_frmask (char *, unsigned int);
static void unw_print_abreg (char *, unsigned int);
static void unw_print_xyreg (char *, unsigned int, unsigned int);
static void
unw_print_brmask (char *cp, unsigned int mask)
{
int sep = 0;
int i;
for (i = 0; mask && (i < 5); ++i)
{
if (mask & 1)
{
if (sep)
*cp++ = ',';
*cp++ = 'b';
*cp++ = i + 1 + '0';
sep = 1;
}
mask >>= 1;
}
*cp = '\0';
}
static void
unw_print_grmask (char *cp, unsigned int mask)
{
int sep = 0;
int i;
for (i = 0; i < 4; ++i)
{
if (mask & 1)
{
if (sep)
*cp++ = ',';
*cp++ = 'r';
*cp++ = i + 4 + '0';
sep = 1;
}
mask >>= 1;
}
*cp = '\0';
}
static void
unw_print_frmask (char *cp, unsigned int mask)
{
int sep = 0;
int i;
for (i = 0; i < 20; ++i)
{
if (mask & 1)
{
if (sep)
*cp++ = ',';
*cp++ = 'f';
if (i < 4)
*cp++ = i + 2 + '0';
else
{
*cp++ = (i + 2) / 10 + 1 + '0';
*cp++ = (i + 2) % 10 + '0';
}
sep = 1;
}
mask >>= 1;
}
*cp = '\0';
}
static void
unw_print_abreg (char *cp, unsigned int abreg)
{
static const char *special_reg[16] =
{
"pr", "psp", "@priunat", "rp", "ar.bsp", "ar.bspstore", "ar.rnat",
"ar.unat", "ar.fpsr", "ar.pfs", "ar.lc",
"Unknown11", "Unknown12", "Unknown13", "Unknown14", "Unknown15"
};
switch ((abreg >> 5) & 0x3)
{
case 0:
sprintf (cp, "r%u", (abreg & 0x1f));
break;
case 1:
sprintf (cp, "f%u", (abreg & 0x1f));
break;
case 2:
sprintf (cp, "b%u", (abreg & 0x1f));
break;
case 3:
strcpy (cp, special_reg[abreg & 0xf]);
break;
}
}
static void
unw_print_xyreg (char *cp, unsigned int x, unsigned int ytreg)
{
switch ((x << 1) | ((ytreg >> 7) & 1))
{
case 0:
sprintf (cp, "r%u", (ytreg & 0x1f));
break;
case 1:
sprintf (cp, "f%u", (ytreg & 0x1f));
break;
case 2:
sprintf (cp, "b%u", (ytreg & 0x1f));
break;
}
}
#define UNW_REG_BSP "bsp"
#define UNW_REG_BSPSTORE "bspstore"
#define UNW_REG_FPSR "fpsr"
#define UNW_REG_LC "lc"
#define UNW_REG_PFS "pfs"
#define UNW_REG_PR "pr"
#define UNW_REG_PSP "psp"
#define UNW_REG_RNAT "rnat"
#define UNW_REG_RP "rp"
#define UNW_REG_UNAT "unat"
typedef bfd_vma unw_word;
#define UNW_DEC_BAD_CODE(code) \
printf ("Unknown code 0x%02x\n", code)
#define UNW_DEC_PROLOGUE(fmt, body, rlen, arg) \
do \
{ \
unw_rlen = rlen; \
*(int *)arg = body; \
printf (" %s:%s(rlen=%lu)\n", \
fmt, body ? "body" : "prologue", (unsigned long) rlen); \
} \
while (0)
#define UNW_DEC_PROLOGUE_GR(fmt, rlen, mask, grsave, arg) \
do \
{ \
char regname[16], maskstr[64], *sep; \
\
unw_rlen = rlen; \
*(int *)arg = 0; \
\
maskstr[0] = '\0'; \
sep = ""; \
if (mask & 0x8) \
{ \
strcat (maskstr, "rp"); \
sep = ","; \
} \
if (mask & 0x4) \
{ \
strcat (maskstr, sep); \
strcat (maskstr, "ar.pfs"); \
sep = ","; \
} \
if (mask & 0x2) \
{ \
strcat (maskstr, sep); \
strcat (maskstr, "psp"); \
sep = ","; \
} \
if (mask & 0x1) \
{ \
strcat (maskstr, sep); \
strcat (maskstr, "pr"); \
} \
sprintf (regname, "r%u", grsave); \
printf (" %s:prologue_gr(mask=[%s],grsave=%s,rlen=%lu)\n", \
fmt, maskstr, regname, (unsigned long) rlen); \
} \
while (0)
#define UNW_DEC_FR_MEM(fmt, frmask, arg) \
do \
{ \
char frstr[200]; \
\
unw_print_frmask (frstr, frmask); \
printf ("\t%s:fr_mem(frmask=[%s])\n", fmt, frstr); \
} \
while (0)
#define UNW_DEC_GR_MEM(fmt, grmask, arg) \
do \
{ \
char grstr[200]; \
\
unw_print_grmask (grstr, grmask); \
printf ("\t%s:gr_mem(grmask=[%s])\n", fmt, grstr); \
} \
while (0)
#define UNW_DEC_FRGR_MEM(fmt, grmask, frmask, arg) \
do \
{ \
char frstr[200], grstr[20]; \
\
unw_print_grmask (grstr, grmask); \
unw_print_frmask (frstr, frmask); \
printf ("\t%s:frgr_mem(grmask=[%s],frmask=[%s])\n", fmt, grstr, frstr); \
} \
while (0)
#define UNW_DEC_BR_MEM(fmt, brmask, arg) \
do \
{ \
char brstr[20]; \
\
unw_print_brmask (brstr, brmask); \
printf ("\t%s:br_mem(brmask=[%s])\n", fmt, brstr); \
} \
while (0)
#define UNW_DEC_BR_GR(fmt, brmask, gr, arg) \
do \
{ \
char brstr[20]; \
\
unw_print_brmask (brstr, brmask); \
printf ("\t%s:br_gr(brmask=[%s],gr=r%u)\n", fmt, brstr, gr); \
} \
while (0)
#define UNW_DEC_REG_GR(fmt, src, dst, arg) \
printf ("\t%s:%s_gr(reg=r%u)\n", fmt, src, dst)
#define UNW_DEC_RP_BR(fmt, dst, arg) \
printf ("\t%s:rp_br(reg=b%u)\n", fmt, dst)
#define UNW_DEC_REG_WHEN(fmt, reg, t, arg) \
printf ("\t%s:%s_when(t=%lu)\n", fmt, reg, (unsigned long) t)
#define UNW_DEC_REG_SPREL(fmt, reg, spoff, arg) \
printf ("\t%s:%s_sprel(spoff=0x%lx)\n", \
fmt, reg, 4*(unsigned long)spoff)
#define UNW_DEC_REG_PSPREL(fmt, reg, pspoff, arg) \
printf ("\t%s:%s_psprel(pspoff=0x10-0x%lx)\n", \
fmt, reg, 4*(unsigned long)pspoff)
#define UNW_DEC_GR_GR(fmt, grmask, gr, arg) \
do \
{ \
char grstr[20]; \
\
unw_print_grmask (grstr, grmask); \
printf ("\t%s:gr_gr(grmask=[%s],r%u)\n", fmt, grstr, gr); \
} \
while (0)
#define UNW_DEC_ABI(fmt, abi, context, arg) \
do \
{ \
static const char *abiname[] = \
{ \
"@svr4", "@hpux", "@nt" \
}; \
char buf[20]; \
const char *abistr = buf; \
\
if (abi < 3) \
abistr = abiname[abi]; \
else \
sprintf (buf, "0x%x", abi); \
printf ("\t%s:unwabi(abi=%s,context=0x%02x)\n", \
fmt, abistr, context); \
} \
while (0)
#define UNW_DEC_PRIUNAT_GR(fmt, r, arg) \
printf ("\t%s:priunat_gr(reg=r%u)\n", fmt, r)
#define UNW_DEC_PRIUNAT_WHEN_GR(fmt, t, arg) \
printf ("\t%s:priunat_when_gr(t=%lu)\n", fmt, (unsigned long) t)
#define UNW_DEC_PRIUNAT_WHEN_MEM(fmt, t, arg) \
printf ("\t%s:priunat_when_mem(t=%lu)\n", fmt, (unsigned long) t)
#define UNW_DEC_PRIUNAT_PSPREL(fmt, pspoff, arg) \
printf ("\t%s:priunat_psprel(pspoff=0x10-0x%lx)\n", \
fmt, 4*(unsigned long)pspoff)
#define UNW_DEC_PRIUNAT_SPREL(fmt, spoff, arg) \
printf ("\t%s:priunat_sprel(spoff=0x%lx)\n", \
fmt, 4*(unsigned long)spoff)
#define UNW_DEC_MEM_STACK_F(fmt, t, size, arg) \
printf ("\t%s:mem_stack_f(t=%lu,size=%lu)\n", \
fmt, (unsigned long) t, 16*(unsigned long)size)
#define UNW_DEC_MEM_STACK_V(fmt, t, arg) \
printf ("\t%s:mem_stack_v(t=%lu)\n", fmt, (unsigned long) t)
#define UNW_DEC_SPILL_BASE(fmt, pspoff, arg) \
printf ("\t%s:spill_base(pspoff=0x10-0x%lx)\n", \
fmt, 4*(unsigned long)pspoff)
#define UNW_DEC_SPILL_MASK(fmt, dp, arg) \
do \
{ \
static const char *spill_type = "-frb"; \
unsigned const char *imaskp = dp; \
unsigned char mask = 0; \
bfd_vma insn = 0; \
\
printf ("\t%s:spill_mask(imask=[", fmt); \
for (insn = 0; insn < unw_rlen; ++insn) \
{ \
if ((insn % 4) == 0) \
mask = *imaskp++; \
if (insn > 0 && (insn % 3) == 0) \
putchar (','); \
putchar (spill_type[(mask >> (2 * (3 - (insn & 0x3)))) & 0x3]); \
} \
printf ("])\n"); \
dp = imaskp; \
} \
while (0)
#define UNW_DEC_SPILL_SPREL(fmt, t, abreg, spoff, arg) \
do \
{ \
char regname[10]; \
\
unw_print_abreg (regname, abreg); \
printf ("\t%s:spill_sprel(reg=%s,t=%lu,spoff=0x%lx)\n", \
fmt, regname, (unsigned long) t, 4*(unsigned long)off); \
} \
while (0)
#define UNW_DEC_SPILL_PSPREL(fmt, t, abreg, pspoff, arg) \
do \
{ \
char regname[10]; \
\
unw_print_abreg (regname, abreg); \
printf ("\t%s:spill_psprel(reg=%s,t=%lu,pspoff=0x10-0x%lx)\n", \
fmt, regname, (unsigned long) t, 4*(unsigned long)pspoff); \
} \
while (0)
#define UNW_DEC_RESTORE(fmt, t, abreg, arg) \
do \
{ \
char regname[10]; \
\
unw_print_abreg (regname, abreg); \
printf ("\t%s:restore(t=%lu,reg=%s)\n", \
fmt, (unsigned long) t, regname); \
} \
while (0)
#define UNW_DEC_SPILL_REG(fmt, t, abreg, x, ytreg, arg) \
do \
{ \
char abregname[10], tregname[10]; \
\
unw_print_abreg (abregname, abreg); \
unw_print_xyreg (tregname, x, ytreg); \
printf ("\t%s:spill_reg(t=%lu,reg=%s,treg=%s)\n", \
fmt, (unsigned long) t, abregname, tregname); \
} \
while (0)
#define UNW_DEC_SPILL_SPREL_P(fmt, qp, t, abreg, spoff, arg) \
do \
{ \
char regname[20]; \
\
unw_print_abreg (regname, abreg); \
printf ("\t%s:spill_sprel_p(qp=p%u,t=%lu,reg=%s,spoff=0x%lx)\n", \
fmt, qp, (unsigned long) t, regname, 4 * (unsigned long)spoff); \
} \
while (0)
#define UNW_DEC_SPILL_PSPREL_P(fmt, qp, t, abreg, pspoff, arg) \
do \
{ \
char regname[20]; \
\
unw_print_abreg (regname, abreg); \
printf ("\t%s:spill_psprel_p(qp=p%u,t=%lu,reg=%s,pspoff=0x10-0x%lx)\n",\
fmt, qp, (unsigned long) t, regname, 4*(unsigned long)pspoff);\
} \
while (0)
#define UNW_DEC_RESTORE_P(fmt, qp, t, abreg, arg) \
do \
{ \
char regname[20]; \
\
unw_print_abreg (regname, abreg); \
printf ("\t%s:restore_p(qp=p%u,t=%lu,reg=%s)\n", \
fmt, qp, (unsigned long) t, regname); \
} \
while (0)
#define UNW_DEC_SPILL_REG_P(fmt, qp, t, abreg, x, ytreg, arg) \
do \
{ \
char regname[20], tregname[20]; \
\
unw_print_abreg (regname, abreg); \
unw_print_xyreg (tregname, x, ytreg); \
printf ("\t%s:spill_reg_p(qp=p%u,t=%lu,reg=%s,treg=%s)\n", \
fmt, qp, (unsigned long) t, regname, tregname); \
} \
while (0)
#define UNW_DEC_LABEL_STATE(fmt, label, arg) \
printf ("\t%s:label_state(label=%lu)\n", fmt, (unsigned long) label)
#define UNW_DEC_COPY_STATE(fmt, label, arg) \
printf ("\t%s:copy_state(label=%lu)\n", fmt, (unsigned long) label)
#define UNW_DEC_EPILOGUE(fmt, t, ecount, arg) \
printf ("\t%s:epilogue(t=%lu,ecount=%lu)\n", \
fmt, (unsigned long) t, (unsigned long) ecount)
static unw_word unw_decode_uleb128 (const unsigned char **);
static const unsigned char *unw_decode_x1
(const unsigned char *, unsigned int, void *);
static const unsigned char *unw_decode_x2
(const unsigned char *, unsigned int, void *);
static const unsigned char *unw_decode_x3
(const unsigned char *, unsigned int, void *);
static const unsigned char *unw_decode_x4
(const unsigned char *, unsigned int, void *);
static const unsigned char *unw_decode_r1
(const unsigned char *, unsigned int, void *);
static const unsigned char *unw_decode_r2
(const unsigned char *, unsigned int, void *);
static const unsigned char *unw_decode_r3
(const unsigned char *, unsigned int, void *);
static const unsigned char *unw_decode_p1
(const unsigned char *, unsigned int, void *);
static const unsigned char *unw_decode_p2_p5
(const unsigned char *, unsigned int, void *);
static const unsigned char *unw_decode_p6
(const unsigned char *, unsigned int, void *);
static const unsigned char *unw_decode_p7_p10
(const unsigned char *, unsigned int, void *);
static const unsigned char *unw_decode_b1
(const unsigned char *, unsigned int, void *);
static const unsigned char *unw_decode_b2
(const unsigned char *, unsigned int, void *);
static const unsigned char *unw_decode_b3_x4
(const unsigned char *, unsigned int, void *);
static unw_word
unw_decode_uleb128 (const unsigned char **dpp)
{
unsigned shift = 0;
unw_word byte, result = 0;
const unsigned char *bp = *dpp;
while (1)
{
byte = *bp++;
result |= (byte & 0x7f) << shift;
if ((byte & 0x80) == 0)
break;
shift += 7;
}
*dpp = bp;
return result;
}
static const unsigned char *
unw_decode_x1 (const unsigned char *dp, unsigned int code ATTRIBUTE_UNUSED,
void *arg ATTRIBUTE_UNUSED)
{
unsigned char byte1, abreg;
unw_word t, off;
byte1 = *dp++;
t = unw_decode_uleb128 (&dp);
off = unw_decode_uleb128 (&dp);
abreg = (byte1 & 0x7f);
if (byte1 & 0x80)
UNW_DEC_SPILL_SPREL ("X1", t, abreg, off, arg);
else
UNW_DEC_SPILL_PSPREL ("X1", t, abreg, off, arg);
return dp;
}
static const unsigned char *
unw_decode_x2 (const unsigned char *dp, unsigned int code ATTRIBUTE_UNUSED,
void *arg ATTRIBUTE_UNUSED)
{
unsigned char byte1, byte2, abreg, x, ytreg;
unw_word t;
byte1 = *dp++;
byte2 = *dp++;
t = unw_decode_uleb128 (&dp);
abreg = (byte1 & 0x7f);
ytreg = byte2;
x = (byte1 >> 7) & 1;
if ((byte1 & 0x80) == 0 && ytreg == 0)
UNW_DEC_RESTORE ("X2", t, abreg, arg);
else
UNW_DEC_SPILL_REG ("X2", t, abreg, x, ytreg, arg);
return dp;
}
static const unsigned char *
unw_decode_x3 (const unsigned char *dp, unsigned int code ATTRIBUTE_UNUSED,
void *arg ATTRIBUTE_UNUSED)
{
unsigned char byte1, byte2, abreg, qp;
unw_word t, off;
byte1 = *dp++;
byte2 = *dp++;
t = unw_decode_uleb128 (&dp);
off = unw_decode_uleb128 (&dp);
qp = (byte1 & 0x3f);
abreg = (byte2 & 0x7f);
if (byte1 & 0x80)
UNW_DEC_SPILL_SPREL_P ("X3", qp, t, abreg, off, arg);
else
UNW_DEC_SPILL_PSPREL_P ("X3", qp, t, abreg, off, arg);
return dp;
}
static const unsigned char *
unw_decode_x4 (const unsigned char *dp, unsigned int code ATTRIBUTE_UNUSED,
void *arg ATTRIBUTE_UNUSED)
{
unsigned char byte1, byte2, byte3, qp, abreg, x, ytreg;
unw_word t;
byte1 = *dp++;
byte2 = *dp++;
byte3 = *dp++;
t = unw_decode_uleb128 (&dp);
qp = (byte1 & 0x3f);
abreg = (byte2 & 0x7f);
x = (byte2 >> 7) & 1;
ytreg = byte3;
if ((byte2 & 0x80) == 0 && byte3 == 0)
UNW_DEC_RESTORE_P ("X4", qp, t, abreg, arg);
else
UNW_DEC_SPILL_REG_P ("X4", qp, t, abreg, x, ytreg, arg);
return dp;
}
static const unsigned char *
unw_decode_r1 (const unsigned char *dp, unsigned int code, void *arg)
{
int body = (code & 0x20) != 0;
unw_word rlen;
rlen = (code & 0x1f);
UNW_DEC_PROLOGUE ("R1", body, rlen, arg);
return dp;
}
static const unsigned char *
unw_decode_r2 (const unsigned char *dp, unsigned int code, void *arg)
{
unsigned char byte1, mask, grsave;
unw_word rlen;
byte1 = *dp++;
mask = ((code & 0x7) << 1) | ((byte1 >> 7) & 1);
grsave = (byte1 & 0x7f);
rlen = unw_decode_uleb128 (& dp);
UNW_DEC_PROLOGUE_GR ("R2", rlen, mask, grsave, arg);
return dp;
}
static const unsigned char *
unw_decode_r3 (const unsigned char *dp, unsigned int code, void *arg)
{
unw_word rlen;
rlen = unw_decode_uleb128 (& dp);
UNW_DEC_PROLOGUE ("R3", ((code & 0x3) == 1), rlen, arg);
return dp;
}
static const unsigned char *
unw_decode_p1 (const unsigned char *dp, unsigned int code,
void *arg ATTRIBUTE_UNUSED)
{
unsigned char brmask = (code & 0x1f);
UNW_DEC_BR_MEM ("P1", brmask, arg);
return dp;
}
static const unsigned char *
unw_decode_p2_p5 (const unsigned char *dp, unsigned int code,
void *arg ATTRIBUTE_UNUSED)
{
if ((code & 0x10) == 0)
{
unsigned char byte1 = *dp++;
UNW_DEC_BR_GR ("P2", ((code & 0xf) << 1) | ((byte1 >> 7) & 1),
(byte1 & 0x7f), arg);
}
else if ((code & 0x08) == 0)
{
unsigned char byte1 = *dp++, r, dst;
r = ((code & 0x7) << 1) | ((byte1 >> 7) & 1);
dst = (byte1 & 0x7f);
switch (r)
{
case 0:
UNW_DEC_REG_GR ("P3", UNW_REG_PSP, dst, arg);
break;
case 1:
UNW_DEC_REG_GR ("P3", UNW_REG_RP, dst, arg);
break;
case 2:
UNW_DEC_REG_GR ("P3", UNW_REG_PFS, dst, arg);
break;
case 3:
UNW_DEC_REG_GR ("P3", UNW_REG_PR, dst, arg);
break;
case 4:
UNW_DEC_REG_GR ("P3", UNW_REG_UNAT, dst, arg);
break;
case 5:
UNW_DEC_REG_GR ("P3", UNW_REG_LC, dst, arg);
break;
case 6:
UNW_DEC_RP_BR ("P3", dst, arg);
break;
case 7:
UNW_DEC_REG_GR ("P3", UNW_REG_RNAT, dst, arg);
break;
case 8:
UNW_DEC_REG_GR ("P3", UNW_REG_BSP, dst, arg);
break;
case 9:
UNW_DEC_REG_GR ("P3", UNW_REG_BSPSTORE, dst, arg);
break;
case 10:
UNW_DEC_REG_GR ("P3", UNW_REG_FPSR, dst, arg);
break;
case 11:
UNW_DEC_PRIUNAT_GR ("P3", dst, arg);
break;
default:
UNW_DEC_BAD_CODE (r);
break;
}
}
else if ((code & 0x7) == 0)
UNW_DEC_SPILL_MASK ("P4", dp, arg);
else if ((code & 0x7) == 1)
{
unw_word grmask, frmask, byte1, byte2, byte3;
byte1 = *dp++;
byte2 = *dp++;
byte3 = *dp++;
grmask = ((byte1 >> 4) & 0xf);
frmask = ((byte1 & 0xf) << 16) | (byte2 << 8) | byte3;
UNW_DEC_FRGR_MEM ("P5", grmask, frmask, arg);
}
else
UNW_DEC_BAD_CODE (code);
return dp;
}
static const unsigned char *
unw_decode_p6 (const unsigned char *dp, unsigned int code,
void *arg ATTRIBUTE_UNUSED)
{
int gregs = (code & 0x10) != 0;
unsigned char mask = (code & 0x0f);
if (gregs)
UNW_DEC_GR_MEM ("P6", mask, arg);
else
UNW_DEC_FR_MEM ("P6", mask, arg);
return dp;
}
static const unsigned char *
unw_decode_p7_p10 (const unsigned char *dp, unsigned int code, void *arg)
{
unsigned char r, byte1, byte2;
unw_word t, size;
if ((code & 0x10) == 0)
{
r = (code & 0xf);
t = unw_decode_uleb128 (&dp);
switch (r)
{
case 0:
size = unw_decode_uleb128 (&dp);
UNW_DEC_MEM_STACK_F ("P7", t, size, arg);
break;
case 1:
UNW_DEC_MEM_STACK_V ("P7", t, arg);
break;
case 2:
UNW_DEC_SPILL_BASE ("P7", t, arg);
break;
case 3:
UNW_DEC_REG_SPREL ("P7", UNW_REG_PSP, t, arg);
break;
case 4:
UNW_DEC_REG_WHEN ("P7", UNW_REG_RP, t, arg);
break;
case 5:
UNW_DEC_REG_PSPREL ("P7", UNW_REG_RP, t, arg);
break;
case 6:
UNW_DEC_REG_WHEN ("P7", UNW_REG_PFS, t, arg);
break;
case 7:
UNW_DEC_REG_PSPREL ("P7", UNW_REG_PFS, t, arg);
break;
case 8:
UNW_DEC_REG_WHEN ("P7", UNW_REG_PR, t, arg);
break;
case 9:
UNW_DEC_REG_PSPREL ("P7", UNW_REG_PR, t, arg);
break;
case 10:
UNW_DEC_REG_WHEN ("P7", UNW_REG_LC, t, arg);
break;
case 11:
UNW_DEC_REG_PSPREL ("P7", UNW_REG_LC, t, arg);
break;
case 12:
UNW_DEC_REG_WHEN ("P7", UNW_REG_UNAT, t, arg);
break;
case 13:
UNW_DEC_REG_PSPREL ("P7", UNW_REG_UNAT, t, arg);
break;
case 14:
UNW_DEC_REG_WHEN ("P7", UNW_REG_FPSR, t, arg);
break;
case 15:
UNW_DEC_REG_PSPREL ("P7", UNW_REG_FPSR, t, arg);
break;
default:
UNW_DEC_BAD_CODE (r);
break;
}
}
else
{
switch (code & 0xf)
{
case 0x0:
{
r = *dp++;
t = unw_decode_uleb128 (&dp);
switch (r)
{
case 1:
UNW_DEC_REG_SPREL ("P8", UNW_REG_RP, t, arg);
break;
case 2:
UNW_DEC_REG_SPREL ("P8", UNW_REG_PFS, t, arg);
break;
case 3:
UNW_DEC_REG_SPREL ("P8", UNW_REG_PR, t, arg);
break;
case 4:
UNW_DEC_REG_SPREL ("P8", UNW_REG_LC, t, arg);
break;
case 5:
UNW_DEC_REG_SPREL ("P8", UNW_REG_UNAT, t, arg);
break;
case 6:
UNW_DEC_REG_SPREL ("P8", UNW_REG_FPSR, t, arg);
break;
case 7:
UNW_DEC_REG_WHEN ("P8", UNW_REG_BSP, t, arg);
break;
case 8:
UNW_DEC_REG_PSPREL ("P8", UNW_REG_BSP, t, arg);
break;
case 9:
UNW_DEC_REG_SPREL ("P8", UNW_REG_BSP, t, arg);
break;
case 10:
UNW_DEC_REG_WHEN ("P8", UNW_REG_BSPSTORE, t, arg);
break;
case 11:
UNW_DEC_REG_PSPREL ("P8", UNW_REG_BSPSTORE, t, arg);
break;
case 12:
UNW_DEC_REG_SPREL ("P8", UNW_REG_BSPSTORE, t, arg);
break;
case 13:
UNW_DEC_REG_WHEN ("P8", UNW_REG_RNAT, t, arg);
break;
case 14:
UNW_DEC_REG_PSPREL ("P8", UNW_REG_RNAT, t, arg);
break;
case 15:
UNW_DEC_REG_SPREL ("P8", UNW_REG_RNAT, t, arg);
break;
case 16:
UNW_DEC_PRIUNAT_WHEN_GR ("P8", t, arg);
break;
case 17:
UNW_DEC_PRIUNAT_PSPREL ("P8", t, arg);
break;
case 18:
UNW_DEC_PRIUNAT_SPREL ("P8", t, arg);
break;
case 19:
UNW_DEC_PRIUNAT_WHEN_MEM ("P8", t, arg);
break;
default:
UNW_DEC_BAD_CODE (r);
break;
}
}
break;
case 0x1:
byte1 = *dp++;
byte2 = *dp++;
UNW_DEC_GR_GR ("P9", (byte1 & 0xf), (byte2 & 0x7f), arg);
break;
case 0xf:
byte1 = *dp++;
byte2 = *dp++;
UNW_DEC_ABI ("P10", byte1, byte2, arg);
break;
case 0x9:
return unw_decode_x1 (dp, code, arg);
case 0xa:
return unw_decode_x2 (dp, code, arg);
case 0xb:
return unw_decode_x3 (dp, code, arg);
case 0xc:
return unw_decode_x4 (dp, code, arg);
default:
UNW_DEC_BAD_CODE (code);
break;
}
}
return dp;
}
static const unsigned char *
unw_decode_b1 (const unsigned char *dp, unsigned int code,
void *arg ATTRIBUTE_UNUSED)
{
unw_word label = (code & 0x1f);
if ((code & 0x20) != 0)
UNW_DEC_COPY_STATE ("B1", label, arg);
else
UNW_DEC_LABEL_STATE ("B1", label, arg);
return dp;
}
static const unsigned char *
unw_decode_b2 (const unsigned char *dp, unsigned int code,
void *arg ATTRIBUTE_UNUSED)
{
unw_word t;
t = unw_decode_uleb128 (& dp);
UNW_DEC_EPILOGUE ("B2", t, (code & 0x1f), arg);
return dp;
}
static const unsigned char *
unw_decode_b3_x4 (const unsigned char *dp, unsigned int code, void *arg)
{
unw_word t, ecount, label;
if ((code & 0x10) == 0)
{
t = unw_decode_uleb128 (&dp);
ecount = unw_decode_uleb128 (&dp);
UNW_DEC_EPILOGUE ("B3", t, ecount, arg);
}
else if ((code & 0x07) == 0)
{
label = unw_decode_uleb128 (&dp);
if ((code & 0x08) != 0)
UNW_DEC_COPY_STATE ("B4", label, arg);
else
UNW_DEC_LABEL_STATE ("B4", label, arg);
}
else
switch (code & 0x7)
{
case 1:
return unw_decode_x1 (dp, code, arg);
case 2:
return unw_decode_x2 (dp, code, arg);
case 3:
return unw_decode_x3 (dp, code, arg);
case 4:
return unw_decode_x4 (dp, code, arg);
default:
UNW_DEC_BAD_CODE (code);
break;
}
return dp;
}
typedef const unsigned char *(*unw_decoder)
(const unsigned char *, unsigned int, void *);
static unw_decoder unw_decode_table[2][8] =
{
{
unw_decode_r1,
unw_decode_r1,
unw_decode_r2,
unw_decode_r3,
unw_decode_p1,
unw_decode_p2_p5,
unw_decode_p6,
unw_decode_p7_p10
},
{
unw_decode_r1,
unw_decode_r1,
unw_decode_r2,
unw_decode_r3,
unw_decode_b1,
unw_decode_b1,
unw_decode_b2,
unw_decode_b3_x4
}
};
const unsigned char *
unw_decode (const unsigned char *dp, int inside_body,
void *ptr_inside_body)
{
unw_decoder decoder;
unsigned char code;
code = *dp++;
decoder = unw_decode_table[inside_body][code >> 5];
return (*decoder) (dp, code, ptr_inside_body);
}