static struct sparc_frame_cache *
sparc64_sol2_sigtramp_frame_cache (struct frame_info *this_frame,
void **this_cache)
{
struct sparc_frame_cache *cache;
CORE_ADDR mcontext_addr, addr;
int regnum;
if (*this_cache)
return *this_cache;
cache = sparc_frame_cache (this_frame, this_cache);
gdb_assert (cache == *this_cache);
cache->saved_regs = trad_frame_alloc_saved_regs (this_frame);
/* The third argument is a pointer to an instance of `ucontext_t',
which has a member `uc_mcontext' that contains the saved
registers. */
regnum =
(cache->copied_regs_mask & 0x04) ? SPARC_I2_REGNUM : SPARC_O2_REGNUM;
mcontext_addr = get_frame_register_unsigned (this_frame, regnum) + 64;
cache->saved_regs[SPARC64_CCR_REGNUM].addr = mcontext_addr + 0 * 8;
cache->saved_regs[SPARC64_PC_REGNUM].addr = mcontext_addr + 1 * 8;
cache->saved_regs[SPARC64_NPC_REGNUM].addr = mcontext_addr + 2 * 8;
cache->saved_regs[SPARC64_Y_REGNUM].addr = mcontext_addr + 3 * 8;
cache->saved_regs[SPARC64_ASI_REGNUM].addr = mcontext_addr + 19 * 8;
cache->saved_regs[SPARC64_FPRS_REGNUM].addr = mcontext_addr + 20 * 8;
/* Since %g0 is always zero, keep the identity encoding. */
for (regnum = SPARC_G1_REGNUM, addr = mcontext_addr + 4 * 8;
regnum <= SPARC_O7_REGNUM; regnum++, addr += 8)
cache->saved_regs[regnum].addr = addr;
if (get_frame_memory_unsigned (this_frame, mcontext_addr + 21 * 8, 8))
{
/* The register windows haven't been flushed. */
for (regnum = SPARC_L0_REGNUM; regnum <= SPARC_I7_REGNUM; regnum++)
trad_frame_set_unknown (cache->saved_regs, regnum);
}
else
{
CORE_ADDR sp;
addr = cache->saved_regs[SPARC_SP_REGNUM].addr;
sp = get_frame_memory_unsigned (this_frame, addr, 8);
for (regnum = SPARC_L0_REGNUM, addr = sp + BIAS;
regnum <= SPARC_I7_REGNUM; regnum++, addr += 8)
cache->saved_regs[regnum].addr = addr;
}
return cache;
}
static struct sparc_frame_cache *
sparc32_sol2_sigtramp_frame_cache (struct frame_info *next_frame,
void **this_cache)
{
struct sparc_frame_cache *cache;
CORE_ADDR mcontext_addr, addr;
int regnum;
if (*this_cache)
return *this_cache;
cache = sparc_frame_cache (next_frame, this_cache);
gdb_assert (cache == *this_cache);
cache->saved_regs = trad_frame_alloc_saved_regs (next_frame);
/* The third argument is a pointer to an instance of `ucontext_t',
which has a member `uc_mcontext' that contains the saved
registers. */
regnum = (cache->frameless_p ? SPARC_O2_REGNUM : SPARC_I2_REGNUM);
mcontext_addr = frame_unwind_register_unsigned (next_frame, regnum) + 40;
cache->saved_regs[SPARC32_PSR_REGNUM].addr = mcontext_addr + 0 * 4;
cache->saved_regs[SPARC32_PC_REGNUM].addr = mcontext_addr + 1 * 4;
cache->saved_regs[SPARC32_NPC_REGNUM].addr = mcontext_addr + 2 * 4;
cache->saved_regs[SPARC32_Y_REGNUM].addr = mcontext_addr + 3 * 4;
/* Since %g0 is always zero, keep the identity encoding. */
for (regnum = SPARC_G1_REGNUM, addr = mcontext_addr + 4 * 4;
regnum <= SPARC_O7_REGNUM; regnum++, addr += 4)
cache->saved_regs[regnum].addr = addr;
if (get_frame_memory_unsigned (next_frame, mcontext_addr + 19 * 4, 4))
{
/* The register windows haven't been flushed. */
for (regnum = SPARC_L0_REGNUM; regnum <= SPARC_I7_REGNUM; regnum++)
trad_frame_set_unknown (cache->saved_regs, regnum);
}
else
{
addr = cache->saved_regs[SPARC_SP_REGNUM].addr;
addr = get_frame_memory_unsigned (next_frame, addr, 4);
for (regnum = SPARC_L0_REGNUM;
regnum <= SPARC_I7_REGNUM; regnum++, addr += 4)
cache->saved_regs[regnum].addr = addr;
}
return cache;
}
