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2007-10-10 Markus Deuling <deuling@de.ibm.com> 

* xtensa-tdep.c (xtensa_register_type, xtensa_pseudo_register_read)
	(xtensa_pseudo_register_write, xtensa_register_reggroup_p)
	(xtensa_unwind_pc, xtensa_unwind_dummy_id, xtensa_push_dummy_call)
	(xtensa_dump_tdep): Replace current_gdbarch by gdbarch.
	(xtensa_register_write_masked, xtensa_register_read_masked)
	(xtensa_supply_gregset, xtensa_store_return_value)
	(xtensa_extract_return_value): Use get_regcache_arch to get at the
	current architecture by regcache.
	(xtensa_frame_cache, call0_frame_get_reg_at_entry, call0_frame_cache)
	(xtensa_frame_prev_register): Use get_frame_arch to get at the current
	architecture by frame_info.
This commit is contained in:
Ulrich Weigand 2007-10-10 17:01:10 +00:00
parent d55ee72f29
commit 6b50c0b03a
2 changed files with 147 additions and 139 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
gdb/ChangeLog
View File

@ -1,3 +1,17 @@
2007-10-10 Markus Deuling <deuling@de.ibm.com>
* xtensa-tdep.c (xtensa_register_type, xtensa_pseudo_register_read)
(xtensa_pseudo_register_write, xtensa_register_reggroup_p)
(xtensa_unwind_pc, xtensa_unwind_dummy_id, xtensa_push_dummy_call)
(xtensa_dump_tdep): Replace current_gdbarch by gdbarch.
(xtensa_register_write_masked, xtensa_register_read_masked)
(xtensa_supply_gregset, xtensa_store_return_value)
(xtensa_extract_return_value): Use get_regcache_arch to get at the
current architecture by regcache.
(xtensa_frame_cache, call0_frame_get_reg_at_entry, call0_frame_cache)
(xtensa_frame_prev_register): Use get_frame_arch to get at the current
architecture by frame_info.
2007-10-10 Daniel Jacobowitz <dan@codesourcery.com>
* arm-tdep.c (struct arm_prologue_cache): Remove frameoffset.

272
gdb/xtensa-tdep.c
View File

@ -214,22 +214,22 @@ static struct type *
xtensa_register_type (struct gdbarch *gdbarch, int regnum)
{
/* Return signed integer for ARx and Ax registers. */
if ((regnum >= gdbarch_tdep (current_gdbarch)->ar_base
&& regnum < gdbarch_tdep (current_gdbarch)->ar_base
+ gdbarch_tdep (current_gdbarch)->num_aregs)
|| (regnum >= gdbarch_tdep (current_gdbarch)->a0_base
&& regnum < gdbarch_tdep (current_gdbarch)->a0_base + 16))
if ((regnum >= gdbarch_tdep (gdbarch)->ar_base
&& regnum < gdbarch_tdep (gdbarch)->ar_base
+ gdbarch_tdep (gdbarch)->num_aregs)
|| (regnum >= gdbarch_tdep (gdbarch)->a0_base
&& regnum < gdbarch_tdep (gdbarch)->a0_base + 16))
return builtin_type_int;
if (regnum == gdbarch_pc_regnum (current_gdbarch)
|| regnum == gdbarch_tdep (current_gdbarch)->a0_base + 1)
if (regnum == gdbarch_pc_regnum (gdbarch)
|| regnum == gdbarch_tdep (gdbarch)->a0_base + 1)
return lookup_pointer_type (builtin_type_void);
/* Return the stored type for all other registers. */
else if (regnum >= 0 && regnum < gdbarch_num_regs (current_gdbarch)
+ gdbarch_num_pseudo_regs (current_gdbarch))
else if (regnum >= 0 && regnum < gdbarch_num_regs (gdbarch)
+ gdbarch_num_pseudo_regs (gdbarch))
{
xtensa_register_t* reg = &gdbarch_tdep (current_gdbarch)->regmap[regnum];
xtensa_register_t* reg = &gdbarch_tdep (gdbarch)->regmap[regnum];
/* Set ctype for this register (only the first time). */
@ -342,7 +342,7 @@ xtensa_register_write_masked (struct regcache *regcache,
DEBUGTRACE ("xtensa_register_write_masked ()\n");
/* Copy the masked register to host byte-order. */
if (gdbarch_byte_order (current_gdbarch) == BFD_ENDIAN_BIG)
if (gdbarch_byte_order (get_regcache_arch (regcache)) == BFD_ENDIAN_BIG)
for (i = 0; i < bytesize; i++)
{
mem >>= 8;
@ -472,7 +472,7 @@ xtensa_register_read_masked (struct regcache *regcache,
ptr = value;
mem = *ptr;
if (gdbarch_byte_order (current_gdbarch) == BFD_ENDIAN_BIG)
if (gdbarch_byte_order (get_regcache_arch (regcache)) == BFD_ENDIAN_BIG)
for (i = 0; i < bytesize; i++)
{
if ((i & 3) == 0)
@ -502,34 +502,33 @@ xtensa_pseudo_register_read (struct gdbarch *gdbarch,
DEBUGTRACE ("xtensa_pseudo_register_read (... regnum = %d (%s) ...)\n",
regnum, xtensa_register_name (regnum));
if (regnum == gdbarch_num_regs (current_gdbarch)
+ gdbarch_num_pseudo_regs (current_gdbarch))
regnum = gdbarch_tdep (current_gdbarch)->a0_base + 1;
if (regnum == gdbarch_num_regs (gdbarch)
+ gdbarch_num_pseudo_regs (gdbarch))
regnum = gdbarch_tdep (gdbarch)->a0_base + 1;
/* Read aliases a0..a15, if this is a Windowed ABI. */
if (gdbarch_tdep (current_gdbarch)->isa_use_windowed_registers
&& (regnum >= gdbarch_tdep (current_gdbarch)->a0_base + 0)
&& (regnum <= gdbarch_tdep (current_gdbarch)->a0_base + 15))
if (gdbarch_tdep (gdbarch)->isa_use_windowed_registers
&& (regnum >= gdbarch_tdep (gdbarch)->a0_base + 0)
&& (regnum <= gdbarch_tdep (gdbarch)->a0_base + 15))
{
gdb_byte *buf = (gdb_byte *) alloca (MAX_REGISTER_SIZE);
regcache_raw_read (regcache,
gdbarch_tdep (current_gdbarch)->wb_regnum, buf);
regcache_raw_read (regcache, gdbarch_tdep (gdbarch)->wb_regnum, buf);
regnum = AREG_NUMBER (regnum, extract_unsigned_integer (buf, 4));
}
/* We can always read non-pseudo registers. */
if (regnum >= 0 && regnum < gdbarch_num_regs (current_gdbarch))
if (regnum >= 0 && regnum < gdbarch_num_regs (gdbarch))
regcache_raw_read (regcache, regnum, buffer);
/* Pseudo registers. */
else if (regnum >= 0
&& regnum < gdbarch_num_regs (current_gdbarch)
+ gdbarch_num_pseudo_regs (current_gdbarch))
&& regnum < gdbarch_num_regs (gdbarch)
+ gdbarch_num_pseudo_regs (gdbarch))
{
xtensa_register_t *reg = &gdbarch_tdep (current_gdbarch)->regmap[regnum];
xtensa_register_t *reg = &gdbarch_tdep (gdbarch)->regmap[regnum];
xtensa_register_type_t type = reg->type;
int flags = gdbarch_tdep (current_gdbarch)->target_flags;
int flags = gdbarch_tdep (gdbarch)->target_flags;
/* We cannot read Unknown or Unmapped registers. */
if (type == xtRegisterTypeUnmapped || type == xtRegisterTypeUnknown)
@ -587,36 +586,36 @@ xtensa_pseudo_register_write (struct gdbarch *gdbarch,
DEBUGTRACE ("xtensa_pseudo_register_write (... regnum = %d (%s) ...)\n",
regnum, xtensa_register_name (regnum));
if (regnum == gdbarch_num_regs (current_gdbarch)
+ gdbarch_num_pseudo_regs (current_gdbarch))
regnum = gdbarch_tdep (current_gdbarch)->a0_base + 1;
if (regnum == gdbarch_num_regs (gdbarch)
+ gdbarch_num_pseudo_regs (gdbarch))
regnum = gdbarch_tdep (gdbarch)->a0_base + 1;
/* Renumber register, if aliase a0..a15 on Windowed ABI. */
if (gdbarch_tdep (current_gdbarch)->isa_use_windowed_registers
&& (regnum >= gdbarch_tdep (current_gdbarch)->a0_base + 0)
&& (regnum <= gdbarch_tdep (current_gdbarch)->a0_base + 15))
if (gdbarch_tdep (gdbarch)->isa_use_windowed_registers
&& (regnum >= gdbarch_tdep (gdbarch)->a0_base + 0)
&& (regnum <= gdbarch_tdep (gdbarch)->a0_base + 15))
{
gdb_byte *buf = (gdb_byte *) alloca (MAX_REGISTER_SIZE);
unsigned int wb;
regcache_raw_read (regcache,
gdbarch_tdep (current_gdbarch)->wb_regnum, buf);
gdbarch_tdep (gdbarch)->wb_regnum, buf);
regnum = AREG_NUMBER (regnum, extract_unsigned_integer (buf, 4));
}
/* We can always write 'core' registers.
Note: We might have converted Ax->ARy. */
if (regnum >= 0 && regnum < gdbarch_num_regs (current_gdbarch))
if (regnum >= 0 && regnum < gdbarch_num_regs (gdbarch))
regcache_raw_write (regcache, regnum, buffer);
/* Pseudo registers. */
else if (regnum >= 0
&& regnum < gdbarch_num_regs (current_gdbarch)
+ gdbarch_num_pseudo_regs (current_gdbarch))
&& regnum < gdbarch_num_regs (gdbarch)
+ gdbarch_num_pseudo_regs (gdbarch))
{
xtensa_register_t *reg = &gdbarch_tdep (current_gdbarch)->regmap[regnum];
xtensa_register_t *reg = &gdbarch_tdep (gdbarch)->regmap[regnum];
xtensa_register_type_t type = reg->type;
int flags = gdbarch_tdep (current_gdbarch)->target_flags;
int flags = gdbarch_tdep (gdbarch)->target_flags;
/* On most targets, we cannot write registers
of type "Unknown" or "Unmapped". */
@ -733,7 +732,7 @@ xtensa_register_reggroup_p (struct gdbarch *gdbarch,
int regnum,
struct reggroup *group)
{
xtensa_register_t* reg = &gdbarch_tdep (current_gdbarch)->regmap[regnum];
xtensa_register_t* reg = &gdbarch_tdep (gdbarch)->regmap[regnum];
xtensa_register_type_t type = reg->type;
xtensa_register_group_t rg = reg->group;
int cp_number;
@ -760,7 +759,7 @@ xtensa_register_reggroup_p (struct gdbarch *gdbarch,
if (group == vector_reggroup || group == xtensa_vectra_reggroup)
return rg & xtRegisterGroupVectra;
if (group == save_reggroup || group == restore_reggroup)
return (regnum < gdbarch_num_regs (current_gdbarch)
return (regnum < gdbarch_num_regs (gdbarch)
&& (reg->flags & SAVE_REST_FLAGS) == SAVE_REST_VALID);
if ((cp_number = xtensa_coprocessor_register_group (group)) >= 0)
return rg & (xtRegisterGroupCP0 << cp_number);
@ -781,52 +780,49 @@ xtensa_supply_gregset (const struct regset *regset,
size_t len)
{
const xtensa_elf_gregset_t *regs = gregs;
struct gdbarch *gdbarch = get_regcache_arch (rc);
int i;
DEBUGTRACE ("xtensa_supply_gregset (..., regnum==%d, ...) \n", regnum);
if (regnum == gdbarch_pc_regnum (current_gdbarch) || regnum == -1)
regcache_raw_supply (rc,
gdbarch_pc_regnum (current_gdbarch),
(char *) &regs->pc);
if (regnum == gdbarch_ps_regnum (current_gdbarch) || regnum == -1)
regcache_raw_supply (rc, gdbarch_ps_regnum (current_gdbarch),
(char *) &regs->ps);
if (regnum == gdbarch_tdep (current_gdbarch)->wb_regnum || regnum == -1)
regcache_raw_supply (rc, gdbarch_tdep (current_gdbarch)->wb_regnum,
if (regnum == gdbarch_pc_regnum (gdbarch) || regnum == -1)
regcache_raw_supply (rc, gdbarch_pc_regnum (gdbarch), (char *) &regs->pc);
if (regnum == gdbarch_ps_regnum (gdbarch) || regnum == -1)
regcache_raw_supply (rc, gdbarch_ps_regnum (gdbarch), (char *) &regs->ps);
if (regnum == gdbarch_tdep (gdbarch)->wb_regnum || regnum == -1)
regcache_raw_supply (rc, gdbarch_tdep (gdbarch)->wb_regnum,
(char *) &regs->windowbase);
if (regnum == gdbarch_tdep (current_gdbarch)->ws_regnum || regnum == -1)
regcache_raw_supply (rc, gdbarch_tdep (current_gdbarch)->ws_regnum,
if (regnum == gdbarch_tdep (gdbarch)->ws_regnum || regnum == -1)
regcache_raw_supply (rc, gdbarch_tdep (gdbarch)->ws_regnum,
(char *) &regs->windowstart);
if (regnum == gdbarch_tdep (current_gdbarch)->lbeg_regnum || regnum == -1)
regcache_raw_supply (rc, gdbarch_tdep (current_gdbarch)->lbeg_regnum,
if (regnum == gdbarch_tdep (gdbarch)->lbeg_regnum || regnum == -1)
regcache_raw_supply (rc, gdbarch_tdep (gdbarch)->lbeg_regnum,
(char *) &regs->lbeg);
if (regnum == gdbarch_tdep (current_gdbarch)->lend_regnum || regnum == -1)
regcache_raw_supply (rc, gdbarch_tdep (current_gdbarch)->lend_regnum,
if (regnum == gdbarch_tdep (gdbarch)->lend_regnum || regnum == -1)
regcache_raw_supply (rc, gdbarch_tdep (gdbarch)->lend_regnum,
(char *) &regs->lend);
if (regnum == gdbarch_tdep (current_gdbarch)->lcount_regnum || regnum == -1)
regcache_raw_supply (rc, gdbarch_tdep (current_gdbarch)->lcount_regnum,
if (regnum == gdbarch_tdep (gdbarch)->lcount_regnum || regnum == -1)
regcache_raw_supply (rc, gdbarch_tdep (gdbarch)->lcount_regnum,
(char *) &regs->lcount);
if (regnum == gdbarch_tdep (current_gdbarch)->sar_regnum || regnum == -1)
regcache_raw_supply (rc, gdbarch_tdep (current_gdbarch)->sar_regnum,
if (regnum == gdbarch_tdep (gdbarch)->sar_regnum || regnum == -1)
regcache_raw_supply (rc, gdbarch_tdep (gdbarch)->sar_regnum,
(char *) &regs->sar);
if (regnum == gdbarch_tdep (current_gdbarch)->exccause_regnum
|| regnum == -1)
regcache_raw_supply (rc, gdbarch_tdep (current_gdbarch)->exccause_regnum,
if (regnum == gdbarch_tdep (gdbarch)->exccause_regnum || regnum == -1)
regcache_raw_supply (rc, gdbarch_tdep (gdbarch)->exccause_regnum,
(char *) &regs->exccause);
if (regnum == gdbarch_tdep (current_gdbarch)->excvaddr_regnum || regnum == -1)
regcache_raw_supply (rc, gdbarch_tdep (current_gdbarch)->excvaddr_regnum,
if (regnum == gdbarch_tdep (gdbarch)->excvaddr_regnum || regnum == -1)
regcache_raw_supply (rc, gdbarch_tdep (gdbarch)->excvaddr_regnum,
(char *) &regs->excvaddr);
if (regnum >=gdbarch_tdep (current_gdbarch)->ar_base
&& regnum < gdbarch_tdep (current_gdbarch)->ar_base
+ gdbarch_tdep (current_gdbarch)->num_aregs)
if (regnum >=gdbarch_tdep (gdbarch)->ar_base
&& regnum < gdbarch_tdep (gdbarch)->ar_base
+ gdbarch_tdep (gdbarch)->num_aregs)
regcache_raw_supply (rc, regnum,
(char *) &regs->ar[regnum - gdbarch_tdep
(current_gdbarch)->ar_base]);
(gdbarch)->ar_base]);
else if (regnum == -1)
{
for (i = 0; i < gdbarch_tdep (current_gdbarch)->num_aregs; ++i)
regcache_raw_supply (rc, gdbarch_tdep (current_gdbarch)->ar_base + i,
for (i = 0; i < gdbarch_tdep (gdbarch)->num_aregs; ++i)
regcache_raw_supply (rc, gdbarch_tdep (gdbarch)->ar_base + i,
(char *) &regs->ar[i]);
}
}
@ -992,7 +988,7 @@ xtensa_unwind_pc (struct gdbarch *gdbarch, struct frame_info *next_frame)
DEBUGTRACE ("xtensa_unwind_pc (next_frame = %p)\n", next_frame);
frame_unwind_register (next_frame, gdbarch_pc_regnum (current_gdbarch), buf);
frame_unwind_register (next_frame, gdbarch_pc_regnum (gdbarch), buf);
DEBUGINFO ("[xtensa_unwind_pc] pc = 0x%08x\n", (unsigned int)
extract_typed_address (buf, builtin_type_void_func_ptr));
@ -1012,7 +1008,7 @@ xtensa_unwind_dummy_id (struct gdbarch *gdbarch, struct frame_info *next_frame)
pc = frame_pc_unwind (next_frame);
fp = frame_unwind_register_unsigned
(next_frame, gdbarch_tdep (current_gdbarch)->a0_base + 1);
(next_frame, gdbarch_tdep (gdbarch)->a0_base + 1);
/* Make dummy frame ID unique by adding a constant. */
return frame_id_build (fp + SP_ALIGNMENT, pc);
@ -1035,7 +1031,8 @@ xtensa_frame_cache (struct frame_info *next_frame, void **this_cache)
{
xtensa_frame_cache_t *cache;
CORE_ADDR ra, wb, ws, pc, sp, ps;
unsigned int ps_regnum = gdbarch_ps_regnum (current_gdbarch);
struct gdbarch *gdbarch = get_frame_arch (next_frame);
unsigned int ps_regnum = gdbarch_ps_regnum (gdbarch);
char op1;
int windowed;
@ -1052,15 +1049,15 @@ xtensa_frame_cache (struct frame_info *next_frame, void **this_cache)
*this_cache = cache;
pc = frame_unwind_register_unsigned (next_frame,
gdbarch_pc_regnum (current_gdbarch));
gdbarch_pc_regnum (gdbarch));
if (windowed)
{
/* Get WINDOWBASE, WINDOWSTART, and PS registers. */
wb = frame_unwind_register_unsigned
(next_frame, gdbarch_tdep (current_gdbarch)->wb_regnum);
(next_frame, gdbarch_tdep (gdbarch)->wb_regnum);
ws = frame_unwind_register_unsigned
(next_frame, gdbarch_tdep (current_gdbarch)->ws_regnum);
(next_frame, gdbarch_tdep (gdbarch)->ws_regnum);
ps = frame_unwind_register_unsigned (next_frame, ps_regnum);
op1 = read_memory_integer (pc, 1);
@ -1068,8 +1065,7 @@ xtensa_frame_cache (struct frame_info *next_frame, void **this_cache)
{
int callinc = CALLINC (ps);
ra = frame_unwind_register_unsigned
(next_frame,
gdbarch_tdep (current_gdbarch)->a0_base + 0 + callinc * 4);
(next_frame, gdbarch_tdep (gdbarch)->a0_base + 0 + callinc * 4);
DEBUGINFO("[xtensa_frame_cache] 'entry' at 0x%08x\n (callinc = %d)",
(int)pc, callinc);
@ -1079,16 +1075,15 @@ xtensa_frame_cache (struct frame_info *next_frame, void **this_cache)
cache->wd.wb = wb;
cache->wd.ws = ws;
cache->prev_sp = frame_unwind_register_unsigned
(next_frame, gdbarch_tdep
(current_gdbarch)->a0_base + 1);
(next_frame, gdbarch_tdep (gdbarch)->a0_base + 1);
}
else
{
ra = frame_unwind_register_unsigned
(next_frame, gdbarch_tdep (current_gdbarch)->a0_base + 0);
(next_frame, gdbarch_tdep (gdbarch)->a0_base + 0);
cache->wd.callsize = WINSIZE (ra);
cache->wd.wb = (wb - cache->wd.callsize / 4)
& (gdbarch_tdep (current_gdbarch)->num_aregs / 4 - 1);
& (gdbarch_tdep (gdbarch)->num_aregs / 4 - 1);
cache->wd.ws = ws & ~(1 << wb);
}
@ -1103,7 +1098,7 @@ xtensa_frame_cache (struct frame_info *next_frame, void **this_cache)
/* Set A0...A3. */
sp = frame_unwind_register_unsigned
(next_frame, gdbarch_tdep (current_gdbarch)->a0_base + 1) - 16;
(next_frame, gdbarch_tdep (gdbarch)->a0_base + 1) - 16;
for (i = 0; i < 4; i++, sp += 4)
{
@ -1134,15 +1129,14 @@ xtensa_frame_cache (struct frame_info *next_frame, void **this_cache)
We can read caller's SP from the proper spill loction. */
cache->prev_sp =
read_memory_integer (cache->wd.aregs[1],
register_size (current_gdbarch,
gdbarch_tdep (current_gdbarch)->a0_base
+ 1));
register_size (gdbarch,
gdbarch_tdep (gdbarch)->a0_base + 1));
}
else
{
/* Read caller's frame SP directly from the previous window. */
int regnum = AREG_NUMBER
(gdbarch_tdep (current_gdbarch)->a0_base + 1,
(gdbarch_tdep (gdbarch)->a0_base + 1,
cache->wd.wb);
cache->prev_sp = xtensa_read_register (regnum);
@ -1155,7 +1149,7 @@ xtensa_frame_cache (struct frame_info *next_frame, void **this_cache)
}
cache->base = frame_unwind_register_unsigned
(next_frame, gdbarch_tdep (current_gdbarch)->a0_base + 1);
(next_frame, gdbarch_tdep (gdbarch)->a0_base + 1);
return cache;
}
@ -1199,9 +1193,10 @@ call0_frame_get_reg_at_entry (struct frame_info *next_frame,
{
CORE_ADDR fp, spe;
int stkofs;
int reg = (regnum >= gdbarch_tdep (current_gdbarch)->ar_base
&& regnum <= (gdbarch_tdep (current_gdbarch)->ar_base + C0_NREGS))
? regnum - gdbarch_tdep (current_gdbarch)->ar_base : regnum;
struct gdbarch *gdbarch = get_frame_arch (next_frame);
int reg = (regnum >= gdbarch_tdep (gdbarch)->ar_base
&& regnum <= (gdbarch_tdep (gdbarch)->ar_base + C0_NREGS))
? regnum - gdbarch_tdep (gdbarch)->ar_base : regnum;
/* Determine stack pointer on entry to this function, based on FP. */
spe = cache->c0.c0_fp - cache->c0.c0_rt[cache->c0.fp_regnum].fr_ofs;
@ -1214,7 +1209,7 @@ call0_frame_get_reg_at_entry (struct frame_info *next_frame,
*addrp = spe + stkofs;
if (valuep)
read_memory (*addrp, valuep, register_size (current_gdbarch, regnum));
read_memory (*addrp, valuep, register_size (gdbarch, regnum));
return 1;
}
@ -1243,6 +1238,7 @@ xtensa_frame_prev_register (struct frame_info *next_frame,
int *realnump,
gdb_byte *valuep)
{
struct gdbarch *gdbarch = get_frame_arch (next_frame);
struct xtensa_frame_cache *cache =
xtensa_frame_cache (next_frame, this_cache);
CORE_ADDR saved_reg = 0;
@ -1254,22 +1250,22 @@ xtensa_frame_prev_register (struct frame_info *next_frame,
*this_cache ? (unsigned int) *this_cache : 0, regnum,
xtensa_register_name (regnum));
if (regnum ==gdbarch_pc_regnum (current_gdbarch))
if (regnum ==gdbarch_pc_regnum (gdbarch))
saved_reg = cache->ra;
else if (regnum == gdbarch_tdep (current_gdbarch)->a0_base + 1)
else if (regnum == gdbarch_tdep (gdbarch)->a0_base + 1)
saved_reg = cache->prev_sp;
else if (!cache->call0)
{
if (regnum == gdbarch_tdep (current_gdbarch)->ws_regnum)
if (regnum == gdbarch_tdep (gdbarch)->ws_regnum)
{
if (cache->wd.ws != 0)
saved_reg = cache->wd.ws;
else
saved_reg = 1 << cache->wd.wb;
}
else if (regnum == gdbarch_tdep (current_gdbarch)->wb_regnum)
else if (regnum == gdbarch_tdep (gdbarch)->wb_regnum)
saved_reg = cache->wd.wb;
else if (regnum == gdbarch_ps_regnum (current_gdbarch))
else if (regnum == gdbarch_ps_regnum (gdbarch))
saved_reg = cache->ps;
else
done = 0;
@ -1292,16 +1288,16 @@ xtensa_frame_prev_register (struct frame_info *next_frame,
if (!cache->call0) /* Windowed ABI. */
{
/* Convert A-register numbers to AR-register numbers. */
if (regnum >= gdbarch_tdep (current_gdbarch)->a0_base + 0
&& regnum <= gdbarch_tdep (current_gdbarch)->a0_base + 15)
if (regnum >= gdbarch_tdep (gdbarch)->a0_base + 0
&& regnum <= gdbarch_tdep (gdbarch)->a0_base + 15)
regnum = AREG_NUMBER (regnum, cache->wd.wb);
/* Check if AR-register has been saved to stack. */
if (regnum >= gdbarch_tdep (current_gdbarch)->ar_base
&& regnum <= (gdbarch_tdep (current_gdbarch)->ar_base
+ gdbarch_tdep (current_gdbarch)->num_aregs))
if (regnum >= gdbarch_tdep (gdbarch)->ar_base
&& regnum <= (gdbarch_tdep (gdbarch)->ar_base
+ gdbarch_tdep (gdbarch)->num_aregs))
{
int areg = regnum - gdbarch_tdep (current_gdbarch)->ar_base
int areg = regnum - gdbarch_tdep (gdbarch)->ar_base
- (cache->wd.wb * 4);
if (areg >= 0
@ -1315,7 +1311,7 @@ xtensa_frame_prev_register (struct frame_info *next_frame,
if (valuep)
read_memory (*addrp, valuep,
register_size (current_gdbarch, regnum));
register_size (gdbarch, regnum));
DEBUGINFO ("[xtensa_frame_prev_register] register on stack\n");
return;
@ -1324,10 +1320,10 @@ xtensa_frame_prev_register (struct frame_info *next_frame,
}
else /* Call0 ABI. */
{
int reg = (regnum >= gdbarch_tdep (current_gdbarch)->ar_base
&& regnum <= (gdbarch_tdep (current_gdbarch)->ar_base
int reg = (regnum >= gdbarch_tdep (gdbarch)->ar_base
&& regnum <= (gdbarch_tdep (gdbarch)->ar_base
+ C0_NREGS))
? regnum - gdbarch_tdep (current_gdbarch)->ar_base : regnum;
? regnum - gdbarch_tdep (gdbarch)->ar_base : regnum;
if (reg < C0_NREGS)
{
@ -1348,7 +1344,7 @@ xtensa_frame_prev_register (struct frame_info *next_frame,
if (valuep)
read_memory (*addrp, valuep,
register_size (current_gdbarch, regnum));
register_size (gdbarch, regnum));
DEBUGINFO ("[xtensa_frame_prev_register] register on stack\n");
return;
@ -1406,6 +1402,7 @@ xtensa_extract_return_value (struct type *type,
struct regcache *regcache,
void *dst)
{
struct gdbarch *gdbarch = get_regcache_arch (regcache);
bfd_byte *valbuf = dst;
int len = TYPE_LENGTH (type);
ULONGEST pc, wb;
@ -1416,11 +1413,10 @@ xtensa_extract_return_value (struct type *type,
gdb_assert(len > 0);
if (gdbarch_tdep (current_gdbarch)->call_abi != CallAbiCall0Only)
if (gdbarch_tdep (gdbarch)->call_abi != CallAbiCall0Only)
{
/* First, we have to find the caller window in the register file. */
regcache_raw_read_unsigned (regcache,
gdbarch_pc_regnum (current_gdbarch), &pc);
regcache_raw_read_unsigned (regcache, gdbarch_pc_regnum (gdbarch), &pc);
callsize = extract_call_winsize (pc);
/* On Xtensa, we can return up to 4 words (or 2 for call12). */
@ -1431,19 +1427,18 @@ xtensa_extract_return_value (struct type *type,
/* Get the register offset of the return
register (A2) in the caller window. */
regcache_raw_read_unsigned
(regcache, gdbarch_tdep (current_gdbarch)->wb_regnum, &wb);
areg = AREG_NUMBER(gdbarch_tdep (current_gdbarch)->a0_base + 2 + callsize,
wb);
(regcache, gdbarch_tdep (gdbarch)->wb_regnum, &wb);
areg = AREG_NUMBER(gdbarch_tdep (gdbarch)->a0_base + 2 + callsize, wb);
}
else
{
/* No windowing hardware - Call0 ABI. */
areg = gdbarch_tdep (current_gdbarch)->a0_base + 0 + C0_ARGS;
areg = gdbarch_tdep (gdbarch)->a0_base + 0 + C0_ARGS;
}
DEBUGINFO ("[xtensa_extract_return_value] areg %d len %d\n", areg, len);
if (len < 4 && gdbarch_byte_order (current_gdbarch) == BFD_ENDIAN_BIG)
if (len < 4 && gdbarch_byte_order (gdbarch) == BFD_ENDIAN_BIG)
offset = 4 - len;
for (; len > 0; len -= 4, areg++, valbuf += 4)
@ -1461,6 +1456,7 @@ xtensa_store_return_value (struct type *type,
struct regcache *regcache,
const void *dst)
{
struct gdbarch *gdbarch = get_regcache_arch (regcache);
const bfd_byte *valbuf = dst;
unsigned int areg;
ULONGEST pc, wb;
@ -1470,30 +1466,28 @@ xtensa_store_return_value (struct type *type,
DEBUGTRACE ("xtensa_store_return_value (...)\n");
if (gdbarch_tdep (current_gdbarch)->call_abi != CallAbiCall0Only)
if (gdbarch_tdep (gdbarch)->call_abi != CallAbiCall0Only)
{
regcache_raw_read_unsigned
(regcache, gdbarch_tdep (current_gdbarch)->wb_regnum, &wb);
regcache_raw_read_unsigned (regcache,
gdbarch_pc_regnum (current_gdbarch), &pc);
regcache_raw_read_unsigned
(regcache, gdbarch_tdep (gdbarch)->wb_regnum, &wb);
regcache_raw_read_unsigned (regcache, gdbarch_pc_regnum (gdbarch), &pc);
callsize = extract_call_winsize (pc);
if (len > (callsize > 8 ? 8 : 16))
internal_error (__FILE__, __LINE__,
_("unimplemented for this length: %d"),
TYPE_LENGTH (type));
areg = AREG_NUMBER
(gdbarch_tdep (current_gdbarch)->a0_base + 2 + callsize, wb);
areg = AREG_NUMBER (gdbarch_tdep (gdbarch)->a0_base + 2 + callsize, wb);
DEBUGTRACE ("[xtensa_store_return_value] callsize %d wb %d\n",
callsize, (int) wb);
}
else
{
areg = gdbarch_tdep (current_gdbarch)->a0_base + 0 + C0_ARGS;
areg = gdbarch_tdep (gdbarch)->a0_base + 0 + C0_ARGS;
}
if (len < 4 && gdbarch_byte_order (current_gdbarch) == BFD_ENDIAN_BIG)
if (len < 4 && gdbarch_byte_order (gdbarch) == BFD_ENDIAN_BIG)
offset = 4 - len;
for (; len > 0; len -= 4, areg++, valbuf += 4)
@ -1682,7 +1676,7 @@ xtensa_push_dummy_call (struct gdbarch *gdbarch,
sp = align_down (sp - onstack_size, SP_ALIGNMENT);
/* Simulate MOVSP, if Windowed ABI. */
if ((gdbarch_tdep (current_gdbarch)->call_abi != CallAbiCall0Only)
if ((gdbarch_tdep (gdbarch)->call_abi != CallAbiCall0Only)
&& (sp != osp))
{
read_memory (osp - 16, buf, 16);
@ -1711,7 +1705,7 @@ xtensa_push_dummy_call (struct gdbarch *gdbarch,
applies for structures smaller than one word. */
if (n < REGISTER_SIZE
&& gdbarch_byte_order (current_gdbarch) == BFD_ENDIAN_BIG)
&& gdbarch_byte_order (gdbarch) == BFD_ENDIAN_BIG)
offset += (REGISTER_SIZE - n);
write_memory (offset, info->contents, info->length);
@ -1730,7 +1724,7 @@ xtensa_push_dummy_call (struct gdbarch *gdbarch,
will be left-aligned in the register on both endiannesses. */
if (n < REGISTER_SIZE
&& gdbarch_byte_order (current_gdbarch) == BFD_ENDIAN_BIG)
&& gdbarch_byte_order (gdbarch) == BFD_ENDIAN_BIG)
{
ULONGEST v = extract_unsigned_integer (cp, REGISTER_SIZE);
v = v >> ((REGISTER_SIZE - n) * TARGET_CHAR_BIT);
@ -1758,28 +1752,27 @@ xtensa_push_dummy_call (struct gdbarch *gdbarch,
The return address for the current function (in A0) is
saved in the dummy frame, so we can savely overwrite A0 here. */
if (gdbarch_tdep (current_gdbarch)->call_abi != CallAbiCall0Only)
if (gdbarch_tdep (gdbarch)->call_abi != CallAbiCall0Only)
{
ra = (bp_addr & 0x3fffffff) | 0x40000000;
regcache_raw_read (regcache, gdbarch_ps_regnum (current_gdbarch), buf);
regcache_raw_read (regcache, gdbarch_ps_regnum (gdbarch), buf);
ps = extract_unsigned_integer (buf, 4) & ~0x00030000;
regcache_cooked_write_unsigned
(regcache, gdbarch_tdep (current_gdbarch)->a0_base + 4, ra);
(regcache, gdbarch_tdep (gdbarch)->a0_base + 4, ra);
regcache_cooked_write_unsigned (regcache,
gdbarch_ps_regnum (current_gdbarch),
gdbarch_ps_regnum (gdbarch),
ps | 0x00010000);
}
else
{
/* Simulate CALL0: write RA into A0 register. */
regcache_cooked_write_unsigned
(regcache, gdbarch_tdep (current_gdbarch)->a0_base + 0, bp_addr);
(regcache, gdbarch_tdep (gdbarch)->a0_base + 0, bp_addr);
}
/* Set new stack pointer and return it. */
regcache_cooked_write_unsigned (regcache,
gdbarch_tdep (current_gdbarch)->a0_base + 1,
sp);
gdbarch_tdep (gdbarch)->a0_base + 1, sp);
/* Make dummy frame ID unique by adding a constant. */
return sp + SP_ALIGNMENT;
}
@ -2242,6 +2235,7 @@ static void
call0_frame_cache (struct frame_info *next_frame,
xtensa_frame_cache_t *cache, CORE_ADDR pc)
{
struct gdbarch *gdbarch = get_frame_arch (next_frame);
CORE_ADDR start_pc; /* The beginning of the function. */
CORE_ADDR body_pc=UINT_MAX; /* PC, where prologue analysis stopped. */
CORE_ADDR sp, fp, ra;
@ -2258,7 +2252,7 @@ call0_frame_cache (struct frame_info *next_frame,
}
sp = frame_unwind_register_unsigned
(next_frame, gdbarch_tdep (current_gdbarch)->a0_base + 1);
(next_frame, gdbarch_tdep (gdbarch)->a0_base + 1);
fp = sp; /* Assume FP == SP until proven otherwise. */
/* Get the frame information and FP (if used) at the current PC.
@ -2277,12 +2271,12 @@ call0_frame_cache (struct frame_info *next_frame,
was derived from SP. Otherwise, it would be C0_FP. */
fp_regnum = c0_hasfp ? C0_FP : C0_SP;
c0_frmsz = - cache->c0.c0_rt[fp_regnum].fr_ofs;
fp_regnum += gdbarch_tdep (current_gdbarch)->a0_base;
fp_regnum += gdbarch_tdep (gdbarch)->a0_base;
}
else /* No data from the prologue analysis. */
{
c0_hasfp = 0;
fp_regnum = gdbarch_tdep (current_gdbarch)->a0_base + C0_SP;
fp_regnum = gdbarch_tdep (gdbarch)->a0_base + C0_SP;
c0_frmsz = 0;
start_pc = pc;
}
@ -2339,7 +2333,7 @@ call0_frame_cache (struct frame_info *next_frame,
{
ra = frame_unwind_register_unsigned
(next_frame,
gdbarch_tdep (current_gdbarch)->a0_base + 0
gdbarch_tdep (gdbarch)->a0_base + 0
+ cache->c0.c0_rt[i].fr_reg);
}
else ra = 0;
@ -2566,7 +2560,7 @@ xtensa_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
}
static void
xtensa_dump_tdep (struct gdbarch *current_gdbarch, struct ui_file *file)
xtensa_dump_tdep (struct gdbarch *gdbarch, struct ui_file *file)
{
error (_("xtensa_dump_tdep(): not implemented"));
}