/* Simple frame_unwind_cache.
This finds the "extra info" for the frame. */
struct trad_frame_cache *
mn10300_frame_unwind_cache (struct frame_info *next_frame,
void **this_prologue_cache)
{
struct trad_frame_cache *cache;
CORE_ADDR pc, start, end;
if (*this_prologue_cache)
return (*this_prologue_cache);
cache = trad_frame_cache_zalloc (next_frame);
pc = gdbarch_unwind_pc (current_gdbarch, next_frame);
mn10300_analyze_prologue (next_frame, (void **) &cache, pc);
if (find_pc_partial_function (pc, NULL, &start, &end))
trad_frame_set_id (cache,
frame_id_build (trad_frame_get_this_base (cache),
start));
else
trad_frame_set_id (cache,
frame_id_build (trad_frame_get_this_base (cache),
frame_func_unwind (next_frame)));
(*this_prologue_cache) = cache;
return cache;
}
static CORE_ADDR
mips_sde_frame_base_address (struct frame_info *this_frame, void **this_cache)
{
struct trad_frame_cache *this_trad_cache
= mips_sde_frame_cache (this_frame, this_cache);
return trad_frame_get_this_base (this_trad_cache);
}
static CORE_ADDR
mn10300_frame_base_address (struct frame_info *next_frame,
void **this_prologue_cache)
{
struct trad_frame_cache *cache =
mn10300_frame_unwind_cache (next_frame, this_prologue_cache);
return trad_frame_get_this_base (cache);
}
static void
set_movm_offsets (struct frame_info *fi,
void **this_cache,
int movm_args)
{
struct trad_frame_cache *cache;
int offset = 0;
CORE_ADDR base;
if (fi == NULL || this_cache == NULL)
return;
cache = mn10300_frame_unwind_cache (fi, this_cache);
if (cache == NULL)
return;
base = trad_frame_get_this_base (cache);
if (movm_args & movm_other_bit)
{
/* The `other' bit leaves a blank area of four bytes at the
beginning of its block of saved registers, making it 32 bytes
long in total. */
trad_frame_set_reg_addr (cache, E_LAR_REGNUM, base + offset + 4);
trad_frame_set_reg_addr (cache, E_LIR_REGNUM, base + offset + 8);
trad_frame_set_reg_addr (cache, E_MDR_REGNUM, base + offset + 12);
trad_frame_set_reg_addr (cache, E_A0_REGNUM + 1, base + offset + 16);
trad_frame_set_reg_addr (cache, E_A0_REGNUM, base + offset + 20);
trad_frame_set_reg_addr (cache, E_D0_REGNUM + 1, base + offset + 24);
trad_frame_set_reg_addr (cache, E_D0_REGNUM, base + offset + 28);
offset += 32;
}
if (movm_args & movm_a3_bit)
{
trad_frame_set_reg_addr (cache, E_A3_REGNUM, base + offset);
offset += 4;
}
if (movm_args & movm_a2_bit)
{
trad_frame_set_reg_addr (cache, E_A2_REGNUM, base + offset);
offset += 4;
}
if (movm_args & movm_d3_bit)
{
trad_frame_set_reg_addr (cache, E_D3_REGNUM, base + offset);
offset += 4;
}
if (movm_args & movm_d2_bit)
{
trad_frame_set_reg_addr (cache, E_D2_REGNUM, base + offset);
offset += 4;
}
if (AM33_MODE)
{
if (movm_args & movm_exother_bit)
{
trad_frame_set_reg_addr (cache, E_MCVF_REGNUM, base + offset);
trad_frame_set_reg_addr (cache, E_MCRL_REGNUM, base + offset + 4);
trad_frame_set_reg_addr (cache, E_MCRH_REGNUM, base + offset + 8);
trad_frame_set_reg_addr (cache, E_MDRQ_REGNUM, base + offset + 12);
trad_frame_set_reg_addr (cache, E_E1_REGNUM, base + offset + 16);
trad_frame_set_reg_addr (cache, E_E0_REGNUM, base + offset + 20);
offset += 24;
}
if (movm_args & movm_exreg1_bit)
{
trad_frame_set_reg_addr (cache, E_E7_REGNUM, base + offset);
trad_frame_set_reg_addr (cache, E_E6_REGNUM, base + offset + 4);
trad_frame_set_reg_addr (cache, E_E5_REGNUM, base + offset + 8);
trad_frame_set_reg_addr (cache, E_E4_REGNUM, base + offset + 12);
offset += 16;
}
if (movm_args & movm_exreg0_bit)
{
trad_frame_set_reg_addr (cache, E_E3_REGNUM, base + offset);
trad_frame_set_reg_addr (cache, E_E2_REGNUM, base + offset + 4);
offset += 8;
}
}
/* The last (or first) thing on the stack will be the PC. */
trad_frame_set_reg_addr (cache, E_PC_REGNUM, base + offset);
/* Save the SP in the 'traditional' way.
This will be the same location where the PC is saved. */
trad_frame_set_reg_value (cache, E_SP_REGNUM, base + offset);
}