&& (regnum) >= (tdep)->ppc_ev0_regnum \
&& (regnum) < (tdep)->ppc_ev0_regnum + 32)
+/* Determine if regnum is a decimal float pseudo-register. */
+#define IS_DFP_PSEUDOREG(tdep, regnum) ((tdep)->ppc_dl0_regnum >= 0 \
+ && (regnum) >= (tdep)->ppc_dl0_regnum \
+ && (regnum) < (tdep)->ppc_dl0_regnum + 16)
+
/* The list of available "set powerpc ..." and "show powerpc ..."
commands. */
static struct cmd_list_element *setpowerpccmdlist = NULL;
return spe_regnames[regno - tdep->ppc_ev0_regnum];
}
+ /* Check if the decimal128 pseudo-registers are available. */
+ if (IS_DFP_PSEUDOREG (tdep, regno))
+ {
+ static const char *const dfp128_regnames[] = {
+ "dl0", "dl1", "dl2", "dl3",
+ "dl4", "dl5", "dl6", "dl7",
+ "dl8", "dl9", "dl10", "dl11",
+ "dl12", "dl13", "dl14", "dl15"
+ };
+ return dfp128_regnames[regno - tdep->ppc_dl0_regnum];
+ }
+
return tdesc_register_name (gdbarch, regno);
}
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
/* These are the only pseudo-registers we support. */
- gdb_assert (IS_SPE_PSEUDOREG (tdep, regnum));
+ gdb_assert (IS_SPE_PSEUDOREG (tdep, regnum)
+ || IS_DFP_PSEUDOREG (tdep, regnum));
- return rs6000_builtin_type_vec64 (gdbarch);
+ /* These are the e500 pseudo-registers. */
+ if (IS_SPE_PSEUDOREG (tdep, regnum))
+ return rs6000_builtin_type_vec64 (gdbarch);
+ else
+ /* Could only be the ppc decimal128 pseudo-registers. */
+ return builtin_type (gdbarch)->builtin_declong;
}
/* Is REGNUM a member of REGGROUP? */
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
/* These are the only pseudo-registers we support. */
- gdb_assert (IS_SPE_PSEUDOREG (tdep, regnum));
+ gdb_assert (IS_SPE_PSEUDOREG (tdep, regnum)
+ || IS_DFP_PSEUDOREG (tdep, regnum));
- if (group == all_reggroup || group == vector_reggroup)
- return 1;
+ /* These are the e500 pseudo-registers. */
+ if (IS_SPE_PSEUDOREG (tdep, regnum))
+ return group == all_reggroup || group == vector_reggroup;
else
- return 0;
+ /* Could only be the ppc decimal128 pseudo-registers. */
+ return group == all_reggroup || group == float_reggroup;
}
/* The register format for RS/6000 floating point registers is always
static void
e500_pseudo_register_read (struct gdbarch *gdbarch, struct regcache *regcache,
int reg_nr, gdb_byte *buffer)
+{
+ e500_move_ev_register (regcache_raw_read, regcache, reg_nr, buffer);
+}
+
+static void
+e500_pseudo_register_write (struct gdbarch *gdbarch, struct regcache *regcache,
+ int reg_nr, const gdb_byte *buffer)
+{
+ e500_move_ev_register ((void (*) (struct regcache *, int, gdb_byte *))
+ regcache_raw_write,
+ regcache, reg_nr, (gdb_byte *) buffer);
+}
+
+/* Read method for PPC pseudo-registers. Currently this is handling the
+ 16 decimal128 registers that map into 16 pairs of FP registers. */
+static void
+ppc_pseudo_register_read (struct gdbarch *gdbarch, struct regcache *regcache,
+ int reg_nr, gdb_byte *buffer)
+{
+ struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
+ int reg_index = reg_nr - tdep->ppc_dl0_regnum;
+
+ if (gdbarch_byte_order (gdbarch) == BFD_ENDIAN_BIG)
+ {
+ /* Read two FP registers to form a whole dl register. */
+ regcache_raw_read (regcache, tdep->ppc_fp0_regnum +
+ 2 * reg_index, buffer);
+ regcache_raw_read (regcache, tdep->ppc_fp0_regnum +
+ 2 * reg_index + 1, buffer + 8);
+ }
+ else
+ {
+ regcache_raw_read (regcache, tdep->ppc_fp0_regnum +
+ 2 * reg_index + 1, buffer + 8);
+ regcache_raw_read (regcache, tdep->ppc_fp0_regnum +
+ 2 * reg_index, buffer);
+ }
+}
+
+/* Write method for PPC pseudo-registers. Currently this is handling the
+ 16 decimal128 registers that map into 16 pairs of FP registers. */
+static void
+ppc_pseudo_register_write (struct gdbarch *gdbarch, struct regcache *regcache,
+ int reg_nr, const gdb_byte *buffer)
+{
+ struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
+ int reg_index = reg_nr - tdep->ppc_dl0_regnum;
+
+ if (gdbarch_byte_order (gdbarch) == BFD_ENDIAN_BIG)
+ {
+ /* Write each half of the dl register into a separate
+ FP register. */
+ regcache_raw_write (regcache, tdep->ppc_fp0_regnum +
+ 2 * reg_index, buffer);
+ regcache_raw_write (regcache, tdep->ppc_fp0_regnum +
+ 2 * reg_index + 1, buffer + 8);
+ }
+ else
+ {
+ regcache_raw_write (regcache, tdep->ppc_fp0_regnum +
+ 2 * reg_index + 1, buffer + 8);
+ regcache_raw_write (regcache, tdep->ppc_fp0_regnum +
+ 2 * reg_index, buffer);
+ }
+}
+
+static void
+rs6000_pseudo_register_read (struct gdbarch *gdbarch, struct regcache *regcache,
+ int reg_nr, gdb_byte *buffer)
{
struct gdbarch *regcache_arch = get_regcache_arch (regcache);
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
gdb_assert (regcache_arch == gdbarch);
-
+
if (IS_SPE_PSEUDOREG (tdep, reg_nr))
- e500_move_ev_register (regcache_raw_read, regcache, reg_nr, buffer);
+ e500_pseudo_register_read (gdbarch, regcache, reg_nr, buffer);
+ else if (IS_DFP_PSEUDOREG (tdep, reg_nr))
+ ppc_pseudo_register_read (gdbarch, regcache, reg_nr, buffer);
else
internal_error (__FILE__, __LINE__,
- _("e500_pseudo_register_read: "
- "called on unexpected register '%s' (%d)"),
- gdbarch_register_name (gdbarch, reg_nr), reg_nr);
+ _("rs6000_pseudo_register_read: "
+ "called on unexpected register '%s' (%d)"),
+ gdbarch_register_name (gdbarch, reg_nr), reg_nr);
}
static void
-e500_pseudo_register_write (struct gdbarch *gdbarch, struct regcache *regcache,
- int reg_nr, const gdb_byte *buffer)
+rs6000_pseudo_register_write (struct gdbarch *gdbarch,
+ struct regcache *regcache,
+ int reg_nr, const gdb_byte *buffer)
{
struct gdbarch *regcache_arch = get_regcache_arch (regcache);
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
gdb_assert (regcache_arch == gdbarch);
-
+
if (IS_SPE_PSEUDOREG (tdep, reg_nr))
- e500_move_ev_register ((void (*) (struct regcache *, int, gdb_byte *))
- regcache_raw_write,
- regcache, reg_nr, (gdb_byte *) buffer);
+ e500_pseudo_register_write (gdbarch, regcache, reg_nr, buffer);
+ else if (IS_DFP_PSEUDOREG (tdep, reg_nr))
+ ppc_pseudo_register_write (gdbarch, regcache, reg_nr, buffer);
else
internal_error (__FILE__, __LINE__,
- _("e500_pseudo_register_read: "
- "called on unexpected register '%s' (%d)"),
- gdbarch_register_name (gdbarch, reg_nr), reg_nr);
+ _("rs6000_pseudo_register_write: "
+ "called on unexpected register '%s' (%d)"),
+ gdbarch_register_name (gdbarch, reg_nr), reg_nr);
}
/* Convert a DBX STABS register number to a GDB register number. */
enum auto_boolean soft_float_flag = powerpc_soft_float_global;
int soft_float;
enum powerpc_vector_abi vector_abi = powerpc_vector_abi_global;
- int have_fpu = 1, have_spe = 0, have_mq = 0, have_altivec = 0;
+ int have_fpu = 1, have_spe = 0, have_mq = 0, have_altivec = 0, have_dfp = 0;
int tdesc_wordsize = -1;
const struct target_desc *tdesc = info.target_desc;
struct tdesc_arch_data *tdesc_data = NULL;
+ int num_pseudoregs = 0;
from_xcoff_exec = info.abfd && info.abfd->format == bfd_object &&
bfd_get_flavour (info.abfd) == bfd_target_xcoff_flavour;
else
have_fpu = 0;
+ /* The DFP pseudo-registers will be available when there are floating
+ point registers. */
+ have_dfp = have_fpu;
+
feature = tdesc_find_feature (tdesc,
"org.gnu.gdb.power.altivec");
if (feature != NULL)
else
tdep->lr_frame_offset = 8;
- if (have_spe)
+ if (have_spe || have_dfp)
{
- set_gdbarch_pseudo_register_read (gdbarch, e500_pseudo_register_read);
- set_gdbarch_pseudo_register_write (gdbarch, e500_pseudo_register_write);
+ set_gdbarch_pseudo_register_read (gdbarch, rs6000_pseudo_register_read);
+ set_gdbarch_pseudo_register_write (gdbarch, rs6000_pseudo_register_write);
}
set_gdbarch_have_nonsteppable_watchpoint (gdbarch, 1);
set_gdbarch_print_insn (gdbarch, gdb_print_insn_powerpc);
set_gdbarch_num_regs (gdbarch, PPC_NUM_REGS);
- set_gdbarch_num_pseudo_regs (gdbarch, have_spe ? 32 : 0);
+
+ if (have_spe)
+ num_pseudoregs += 32;
+ if (have_dfp)
+ num_pseudoregs += 16;
+
+ set_gdbarch_num_pseudo_regs (gdbarch, num_pseudoregs);
set_gdbarch_ptr_bit (gdbarch, wordsize * TARGET_CHAR_BIT);
set_gdbarch_short_bit (gdbarch, 2 * TARGET_CHAR_BIT);
/* Recording the numbering of pseudo registers. */
tdep->ppc_ev0_regnum = have_spe ? gdbarch_num_regs (gdbarch) : -1;
+ /* Set the register number for _Decimal128 pseudo-registers. */
+ tdep->ppc_dl0_regnum = have_dfp? gdbarch_num_regs (gdbarch) : -1;
+
+ if (have_dfp && have_spe)
+ /* Put the _Decimal128 pseudo-registers after the SPE registers. */
+ tdep->ppc_dl0_regnum += 32;
+
return gdbarch;
}
projects / binutils-gdb.git / commitdiff