/* Target-dependent code for UltraSPARC.
- Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
- Free Software Foundation, Inc.
+ Copyright (C) 2003-2014 Free Software Foundation, Inc.
This file is part of GDB.
#include "target.h"
#include "value.h"
-#include "gdb_assert.h"
-#include "gdb_string.h"
-
#include "sparc64-tdep.h"
-/* This file implements the The SPARC 64-bit ABI as defined by the
+/* This file implements the SPARC 64-bit ABI as defined by the
section "Low-Level System Information" of the SPARC Compliance
Definition (SCD) 2.4.1, which is the 64-bit System V psABI for
SPARC. */
return 0;
}
+/* Check whether TYPE is "Complex Floating". */
+
+static int
+sparc64_complex_floating_p (const struct type *type)
+{
+ switch (TYPE_CODE (type))
+ {
+ case TYPE_CODE_COMPLEX:
+ {
+ int len = TYPE_LENGTH (type);
+ gdb_assert (len == 8 || len == 16 || len == 32);
+ }
+ return 1;
+ default:
+ break;
+ }
+
+ return 0;
+}
+
/* Check whether TYPE is "Structure or Union".
In terms of Ada subprogram calls, arrays are treated the same as
}
/* Return the GDB type object for the "standard" data type of data in
- register REGNUM. */
+ register REGNUM. */
static struct type *
sparc64_register_type (struct gdbarch *gdbarch, int regnum)
internal_error (__FILE__, __LINE__, _("invalid regnum"));
}
-static void
+static enum register_status
sparc64_pseudo_register_read (struct gdbarch *gdbarch,
struct regcache *regcache,
int regnum, gdb_byte *buf)
{
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
+ enum register_status status;
+
gdb_assert (regnum >= SPARC64_NUM_REGS);
if (regnum >= SPARC64_D0_REGNUM && regnum <= SPARC64_D30_REGNUM)
{
regnum = SPARC_F0_REGNUM + 2 * (regnum - SPARC64_D0_REGNUM);
- regcache_raw_read (regcache, regnum, buf);
- regcache_raw_read (regcache, regnum + 1, buf + 4);
+ status = regcache_raw_read (regcache, regnum, buf);
+ if (status == REG_VALID)
+ status = regcache_raw_read (regcache, regnum + 1, buf + 4);
+ return status;
}
else if (regnum >= SPARC64_D32_REGNUM && regnum <= SPARC64_D62_REGNUM)
{
regnum = SPARC64_F32_REGNUM + (regnum - SPARC64_D32_REGNUM);
- regcache_raw_read (regcache, regnum, buf);
+ return regcache_raw_read (regcache, regnum, buf);
}
else if (regnum >= SPARC64_Q0_REGNUM && regnum <= SPARC64_Q28_REGNUM)
{
regnum = SPARC_F0_REGNUM + 4 * (regnum - SPARC64_Q0_REGNUM);
- regcache_raw_read (regcache, regnum, buf);
- regcache_raw_read (regcache, regnum + 1, buf + 4);
- regcache_raw_read (regcache, regnum + 2, buf + 8);
- regcache_raw_read (regcache, regnum + 3, buf + 12);
+
+ status = regcache_raw_read (regcache, regnum, buf);
+ if (status == REG_VALID)
+ status = regcache_raw_read (regcache, regnum + 1, buf + 4);
+ if (status == REG_VALID)
+ status = regcache_raw_read (regcache, regnum + 2, buf + 8);
+ if (status == REG_VALID)
+ status = regcache_raw_read (regcache, regnum + 3, buf + 12);
+
+ return status;
}
else if (regnum >= SPARC64_Q32_REGNUM && regnum <= SPARC64_Q60_REGNUM)
{
regnum = SPARC64_F32_REGNUM + 2 * (regnum - SPARC64_Q32_REGNUM);
- regcache_raw_read (regcache, regnum, buf);
- regcache_raw_read (regcache, regnum + 1, buf + 8);
+
+ status = regcache_raw_read (regcache, regnum, buf);
+ if (status == REG_VALID)
+ status = regcache_raw_read (regcache, regnum + 1, buf + 8);
+
+ return status;
}
else if (regnum == SPARC64_CWP_REGNUM
|| regnum == SPARC64_PSTATE_REGNUM
{
ULONGEST state;
- regcache_raw_read_unsigned (regcache, SPARC64_STATE_REGNUM, &state);
+ status = regcache_raw_read_unsigned (regcache, SPARC64_STATE_REGNUM, &state);
+ if (status != REG_VALID)
+ return status;
+
switch (regnum)
{
case SPARC64_CWP_REGNUM:
}
store_unsigned_integer (buf, 8, byte_order, state);
}
+
+ return REG_VALID;
}
static void
{
CORE_ADDR pc = (regnum == SPARC64_NPC_REGNUM) ? 4 : 0;
- regnum = cache->frameless_p ? SPARC_O7_REGNUM : SPARC_I7_REGNUM;
+ regnum =
+ (cache->copied_regs_mask & 0x80) ? SPARC_I7_REGNUM : SPARC_O7_REGNUM;
pc += get_frame_register_unsigned (this_frame, regnum) + 8;
return frame_unwind_got_constant (this_frame, regnum, pc);
}
}
}
- /* The previous frame's `local' and `in' registers have been saved
+ /* The previous frame's `local' and `in' registers may have been saved
in the register save area. */
- if (!cache->frameless_p
- && regnum >= SPARC_L0_REGNUM && regnum <= SPARC_I7_REGNUM)
+ if (regnum >= SPARC_L0_REGNUM && regnum <= SPARC_I7_REGNUM
+ && (cache->saved_regs_mask & (1 << (regnum - SPARC_L0_REGNUM))))
{
CORE_ADDR addr = cache->base + (regnum - SPARC_L0_REGNUM) * 8;
return frame_unwind_got_memory (this_frame, regnum, addr);
}
- /* The previous frame's `out' registers are accessable as the
- current frame's `in' registers. */
- if (!cache->frameless_p
- && regnum >= SPARC_O0_REGNUM && regnum <= SPARC_O7_REGNUM)
+ /* The previous frame's `out' registers may be accessible as the current
+ frame's `in' registers. */
+ if (regnum >= SPARC_O0_REGNUM && regnum <= SPARC_O7_REGNUM
+ && (cache->copied_regs_mask & (1 << (regnum - SPARC_O0_REGNUM))))
regnum += (SPARC_I0_REGNUM - SPARC_O0_REGNUM);
return frame_unwind_got_register (this_frame, regnum, regnum);
static const struct frame_unwind sparc64_frame_unwind =
{
NORMAL_FRAME,
+ default_frame_unwind_stop_reason,
sparc64_frame_this_id,
sparc64_frame_prev_register,
NULL,
sparc64_store_floating_fields (struct regcache *regcache, struct type *type,
const gdb_byte *valbuf, int element, int bitpos)
{
+ int len = TYPE_LENGTH (type);
+
gdb_assert (element < 16);
- if (sparc64_floating_p (type))
+ if (sparc64_floating_p (type)
+ || (sparc64_complex_floating_p (type) && len <= 16))
{
- int len = TYPE_LENGTH (type);
int regnum;
if (len == 16)
struct type *type = value_type (args[i]);
int len = TYPE_LENGTH (type);
- if (sparc64_structure_or_union_p (type))
+ if (sparc64_structure_or_union_p (type)
+ || (sparc64_complex_floating_p (type) && len == 32))
{
/* Structure or Union arguments. */
if (len <= 16)
num_elements++;
}
}
- else if (sparc64_floating_p (type))
+ else if (sparc64_floating_p (type) || sparc64_complex_floating_p (type))
{
/* Floating arguments. */
-
if (len == 16)
{
/* The psABI says that "Each quad-precision parameter
quad-aligned, and thus a hole might be introduced
into the parameter array to force alignment." Skip
an element if necessary. */
- if (num_elements % 2)
+ if ((num_elements % 2) && sparc64_16_byte_align_p (type))
num_elements++;
}
else
int regnum = -1;
gdb_byte buf[16];
- if (sparc64_structure_or_union_p (type))
+ if (sparc64_structure_or_union_p (type)
+ || (sparc64_complex_floating_p (type) && len == 32))
{
- /* Structure or Union arguments. */
+ /* Structure, Union or long double Complex arguments. */
gdb_assert (len <= 16);
memset (buf, 0, sizeof (buf));
valbuf = memcpy (buf, valbuf, len);
if (element < 16)
sparc64_store_floating_fields (regcache, type, valbuf, element, 0);
}
+ else if (sparc64_complex_floating_p (type))
+ {
+ /* Float Complex or double Complex arguments. */
+ if (element < 16)
+ {
+ regnum = SPARC64_D0_REGNUM + element;
+
+ if (len == 16)
+ {
+ if (regnum < SPARC64_D30_REGNUM)
+ regcache_cooked_write (regcache, regnum + 1, valbuf + 8);
+ if (regnum < SPARC64_D10_REGNUM)
+ regcache_cooked_write (regcache,
+ SPARC_O0_REGNUM + element + 1,
+ valbuf + 8);
+ }
+ }
+ }
else if (sparc64_floating_p (type))
{
/* Floating arguments. */
if (element < 16)
regnum = SPARC64_D0_REGNUM + element;
}
- else
+ else if (len == 4)
{
/* The psABI says "Each single-precision parameter value
will be assigned to one extended word in the
parameter array, and right-justified within that
- word; the left half (even floatregister) is
+ word; the left half (even float register) is
undefined." Even though the psABI says that "the
left half is undefined", set it to zero here. */
memset (buf, 0, 4);
}
else if (regnum >= SPARC64_Q0_REGNUM && regnum <= SPARC64_Q8_REGNUM)
{
- gdb_assert (element < 6);
+ gdb_assert (element < 5);
regnum = SPARC_O0_REGNUM + element;
regcache_cooked_write (regcache, regnum, valbuf);
regcache_cooked_write (regcache, regnum + 1, valbuf + 8);
}
static CORE_ADDR
+sparc64_frame_align (struct gdbarch *gdbarch, CORE_ADDR address)
+{
+ /* The ABI requires 16-byte alignment. */
+ return address & ~0xf;
+}
+
+static CORE_ADDR
sparc64_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
struct regcache *regcache, CORE_ADDR bp_addr,
int nargs, struct value **args, CORE_ADDR sp,
sparc64_extract_floating_fields (regcache, type, buf, 0);
memcpy (valbuf, buf, len);
}
- else if (sparc64_floating_p (type))
+ else if (sparc64_floating_p (type) || sparc64_complex_floating_p (type))
{
/* Floating return values. */
for (i = 0; i < len / 4; i++)
if (TYPE_CODE (type) != TYPE_CODE_UNION)
sparc64_store_floating_fields (regcache, type, buf, 0, 0);
}
- else if (sparc64_floating_p (type))
+ else if (sparc64_floating_p (type) || sparc64_complex_floating_p (type))
{
/* Floating return values. */
memcpy (buf, valbuf, len);
}
static enum return_value_convention
-sparc64_return_value (struct gdbarch *gdbarch, struct type *func_type,
+sparc64_return_value (struct gdbarch *gdbarch, struct value *function,
struct type *type, struct regcache *regcache,
gdb_byte *readbuf, const gdb_byte *writebuf)
{
set_gdbarch_pc_regnum (gdbarch, SPARC64_PC_REGNUM); /* %pc */
/* Call dummy code. */
+ set_gdbarch_frame_align (gdbarch, sparc64_frame_align);
set_gdbarch_call_dummy_location (gdbarch, AT_ENTRY_POINT);
set_gdbarch_push_dummy_code (gdbarch, NULL);
set_gdbarch_push_dummy_call (gdbarch, sparc64_push_dummy_call);
(gdbarch, default_stabs_argument_has_addr);
set_gdbarch_skip_prologue (gdbarch, sparc64_skip_prologue);
+ set_gdbarch_in_function_epilogue_p (gdbarch, sparc_in_function_epilogue_p);
/* Hook in the DWARF CFI frame unwinder. */
dwarf2_frame_set_init_reg (gdbarch, sparc64_dwarf2_frame_init_reg);
#define PSR_XCC 0x000f0000
void
-sparc64_supply_gregset (const struct sparc_gregset *gregset,
+sparc64_supply_gregset (const struct sparc_gregmap *gregmap,
struct regcache *regcache,
int regnum, const void *gregs)
{
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
int sparc32 = (gdbarch_ptr_bit (gdbarch) == 32);
const gdb_byte *regs = gregs;
+ gdb_byte zero[8] = { 0 };
int i;
if (sparc32)
{
if (regnum == SPARC32_PSR_REGNUM || regnum == -1)
{
- int offset = gregset->r_tstate_offset;
+ int offset = gregmap->r_tstate_offset;
ULONGEST tstate, psr;
gdb_byte buf[4];
if (regnum == SPARC32_PC_REGNUM || regnum == -1)
regcache_raw_supply (regcache, SPARC32_PC_REGNUM,
- regs + gregset->r_pc_offset + 4);
+ regs + gregmap->r_pc_offset + 4);
if (regnum == SPARC32_NPC_REGNUM || regnum == -1)
regcache_raw_supply (regcache, SPARC32_NPC_REGNUM,
- regs + gregset->r_npc_offset + 4);
+ regs + gregmap->r_npc_offset + 4);
if (regnum == SPARC32_Y_REGNUM || regnum == -1)
{
- int offset = gregset->r_y_offset + 8 - gregset->r_y_size;
+ int offset = gregmap->r_y_offset + 8 - gregmap->r_y_size;
regcache_raw_supply (regcache, SPARC32_Y_REGNUM, regs + offset);
}
}
{
if (regnum == SPARC64_STATE_REGNUM || regnum == -1)
regcache_raw_supply (regcache, SPARC64_STATE_REGNUM,
- regs + gregset->r_tstate_offset);
+ regs + gregmap->r_tstate_offset);
if (regnum == SPARC64_PC_REGNUM || regnum == -1)
regcache_raw_supply (regcache, SPARC64_PC_REGNUM,
- regs + gregset->r_pc_offset);
+ regs + gregmap->r_pc_offset);
if (regnum == SPARC64_NPC_REGNUM || regnum == -1)
regcache_raw_supply (regcache, SPARC64_NPC_REGNUM,
- regs + gregset->r_npc_offset);
+ regs + gregmap->r_npc_offset);
if (regnum == SPARC64_Y_REGNUM || regnum == -1)
{
gdb_byte buf[8];
memset (buf, 0, 8);
- memcpy (buf + 8 - gregset->r_y_size,
- regs + gregset->r_y_offset, gregset->r_y_size);
+ memcpy (buf + 8 - gregmap->r_y_size,
+ regs + gregmap->r_y_offset, gregmap->r_y_size);
regcache_raw_supply (regcache, SPARC64_Y_REGNUM, buf);
}
if ((regnum == SPARC64_FPRS_REGNUM || regnum == -1)
- && gregset->r_fprs_offset != -1)
+ && gregmap->r_fprs_offset != -1)
regcache_raw_supply (regcache, SPARC64_FPRS_REGNUM,
- regs + gregset->r_fprs_offset);
+ regs + gregmap->r_fprs_offset);
}
if (regnum == SPARC_G0_REGNUM || regnum == -1)
- regcache_raw_supply (regcache, SPARC_G0_REGNUM, NULL);
+ regcache_raw_supply (regcache, SPARC_G0_REGNUM, &zero);
if ((regnum >= SPARC_G1_REGNUM && regnum <= SPARC_O7_REGNUM) || regnum == -1)
{
- int offset = gregset->r_g1_offset;
+ int offset = gregmap->r_g1_offset;
if (sparc32)
offset += 4;
{
/* Not all of the register set variants include Locals and
Inputs. For those that don't, we read them off the stack. */
- if (gregset->r_l0_offset == -1)
+ if (gregmap->r_l0_offset == -1)
{
ULONGEST sp;
}
else
{
- int offset = gregset->r_l0_offset;
+ int offset = gregmap->r_l0_offset;
if (sparc32)
offset += 4;
}
void
-sparc64_collect_gregset (const struct sparc_gregset *gregset,
+sparc64_collect_gregset (const struct sparc_gregmap *gregmap,
const struct regcache *regcache,
int regnum, void *gregs)
{
{
if (regnum == SPARC32_PSR_REGNUM || regnum == -1)
{
- int offset = gregset->r_tstate_offset;
+ int offset = gregmap->r_tstate_offset;
ULONGEST tstate, psr;
gdb_byte buf[8];
if (regnum == SPARC32_PC_REGNUM || regnum == -1)
regcache_raw_collect (regcache, SPARC32_PC_REGNUM,
- regs + gregset->r_pc_offset + 4);
+ regs + gregmap->r_pc_offset + 4);
if (regnum == SPARC32_NPC_REGNUM || regnum == -1)
regcache_raw_collect (regcache, SPARC32_NPC_REGNUM,
- regs + gregset->r_npc_offset + 4);
+ regs + gregmap->r_npc_offset + 4);
if (regnum == SPARC32_Y_REGNUM || regnum == -1)
{
- int offset = gregset->r_y_offset + 8 - gregset->r_y_size;
+ int offset = gregmap->r_y_offset + 8 - gregmap->r_y_size;
regcache_raw_collect (regcache, SPARC32_Y_REGNUM, regs + offset);
}
}
{
if (regnum == SPARC64_STATE_REGNUM || regnum == -1)
regcache_raw_collect (regcache, SPARC64_STATE_REGNUM,
- regs + gregset->r_tstate_offset);
+ regs + gregmap->r_tstate_offset);
if (regnum == SPARC64_PC_REGNUM || regnum == -1)
regcache_raw_collect (regcache, SPARC64_PC_REGNUM,
- regs + gregset->r_pc_offset);
+ regs + gregmap->r_pc_offset);
if (regnum == SPARC64_NPC_REGNUM || regnum == -1)
regcache_raw_collect (regcache, SPARC64_NPC_REGNUM,
- regs + gregset->r_npc_offset);
+ regs + gregmap->r_npc_offset);
if (regnum == SPARC64_Y_REGNUM || regnum == -1)
{
gdb_byte buf[8];
regcache_raw_collect (regcache, SPARC64_Y_REGNUM, buf);
- memcpy (regs + gregset->r_y_offset,
- buf + 8 - gregset->r_y_size, gregset->r_y_size);
+ memcpy (regs + gregmap->r_y_offset,
+ buf + 8 - gregmap->r_y_size, gregmap->r_y_size);
}
if ((regnum == SPARC64_FPRS_REGNUM || regnum == -1)
- && gregset->r_fprs_offset != -1)
+ && gregmap->r_fprs_offset != -1)
regcache_raw_collect (regcache, SPARC64_FPRS_REGNUM,
- regs + gregset->r_fprs_offset);
+ regs + gregmap->r_fprs_offset);
}
if ((regnum >= SPARC_G1_REGNUM && regnum <= SPARC_O7_REGNUM) || regnum == -1)
{
- int offset = gregset->r_g1_offset;
+ int offset = gregmap->r_g1_offset;
if (sparc32)
offset += 4;
{
/* Not all of the register set variants include Locals and
Inputs. For those that don't, we read them off the stack. */
- if (gregset->r_l0_offset != -1)
+ if (gregmap->r_l0_offset != -1)
{
- int offset = gregset->r_l0_offset;
+ int offset = gregmap->r_l0_offset;
if (sparc32)
offset += 4;
}
void
-sparc64_supply_fpregset (struct regcache *regcache,
+sparc64_supply_fpregset (const struct sparc_fpregmap *fpregmap,
+ struct regcache *regcache,
int regnum, const void *fpregs)
{
int sparc32 = (gdbarch_ptr_bit (get_regcache_arch (regcache)) == 32);
for (i = 0; i < 32; i++)
{
if (regnum == (SPARC_F0_REGNUM + i) || regnum == -1)
- regcache_raw_supply (regcache, SPARC_F0_REGNUM + i, regs + (i * 4));
+ regcache_raw_supply (regcache, SPARC_F0_REGNUM + i,
+ regs + fpregmap->r_f0_offset + (i * 4));
}
if (sparc32)
{
if (regnum == SPARC32_FSR_REGNUM || regnum == -1)
regcache_raw_supply (regcache, SPARC32_FSR_REGNUM,
- regs + (32 * 4) + (16 * 8) + 4);
+ regs + fpregmap->r_fsr_offset);
}
else
{
{
if (regnum == (SPARC64_F32_REGNUM + i) || regnum == -1)
regcache_raw_supply (regcache, SPARC64_F32_REGNUM + i,
- regs + (32 * 4) + (i * 8));
+ (regs + fpregmap->r_f0_offset
+ + (32 * 4) + (i * 8)));
}
if (regnum == SPARC64_FSR_REGNUM || regnum == -1)
regcache_raw_supply (regcache, SPARC64_FSR_REGNUM,
- regs + (32 * 4) + (16 * 8));
+ regs + fpregmap->r_fsr_offset);
}
}
void
-sparc64_collect_fpregset (const struct regcache *regcache,
+sparc64_collect_fpregset (const struct sparc_fpregmap *fpregmap,
+ const struct regcache *regcache,
int regnum, void *fpregs)
{
int sparc32 = (gdbarch_ptr_bit (get_regcache_arch (regcache)) == 32);
for (i = 0; i < 32; i++)
{
if (regnum == (SPARC_F0_REGNUM + i) || regnum == -1)
- regcache_raw_collect (regcache, SPARC_F0_REGNUM + i, regs + (i * 4));
+ regcache_raw_collect (regcache, SPARC_F0_REGNUM + i,
+ regs + fpregmap->r_f0_offset + (i * 4));
}
if (sparc32)
{
if (regnum == SPARC32_FSR_REGNUM || regnum == -1)
regcache_raw_collect (regcache, SPARC32_FSR_REGNUM,
- regs + (32 * 4) + (16 * 8) + 4);
+ regs + fpregmap->r_fsr_offset);
}
else
{
{
if (regnum == (SPARC64_F32_REGNUM + i) || regnum == -1)
regcache_raw_collect (regcache, SPARC64_F32_REGNUM + i,
- regs + (32 * 4) + (i * 8));
+ (regs + fpregmap->r_f0_offset
+ + (32 * 4) + (i * 8)));
}
if (regnum == SPARC64_FSR_REGNUM || regnum == -1)
regcache_raw_collect (regcache, SPARC64_FSR_REGNUM,
- regs + (32 * 4) + (16 * 8));
+ regs + fpregmap->r_fsr_offset);
}
}
+const struct sparc_fpregmap sparc64_bsd_fpregmap =
+{
+ 0 * 8, /* %f0 */
+ 32 * 8, /* %fsr */
+};