/* Target-dependent code for the S+core architecture, for GDB,
the GNU Debugger.
- Copyright (C) 2006-2013 Free Software Foundation, Inc.
+ Copyright (C) 2006-2021 Free Software Foundation, Inc.
Contributed by Qinwei (qinwei@sunnorth.com.cn)
Contributed by Ching-Peng Lin (cplin@sunplus.com)
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
-#include "gdb_assert.h"
#include "inferior.h"
#include "symtab.h"
#include "objfiles.h"
#include "frame-unwind.h"
#include "frame-base.h"
#include "trad-frame.h"
-#include "dwarf2-frame.h"
+#include "dwarf2/frame.h"
#include "score-tdep.h"
#define G_FLD(_i,_ms,_ls) \
{
CORE_ADDR base;
CORE_ADDR fp;
- struct trad_frame_saved_reg *saved_regs;
+ trad_frame_saved_reg *saved_regs;
};
static int target_mach = bfd_mach_score7;
score_register_type (struct gdbarch *gdbarch, int regnum)
{
gdb_assert (regnum >= 0
- && regnum < ((target_mach == bfd_mach_score7)
+ && regnum < ((target_mach == bfd_mach_score7)
? SCORE7_NUM_REGS : SCORE3_NUM_REGS));
return builtin_type (gdbarch)->builtin_uint32;
}
-static CORE_ADDR
-score_unwind_sp (struct gdbarch *gdbarch, struct frame_info *next_frame)
-{
- return frame_unwind_register_unsigned (next_frame, SCORE_SP_REGNUM);
-}
-
-static CORE_ADDR
-score_unwind_pc (struct gdbarch *gdbarch, struct frame_info *next_frame)
-{
- return frame_unwind_register_unsigned (next_frame, SCORE_PC_REGNUM);
-}
-
static const char *
score7_register_name (struct gdbarch *gdbarch, int regnum)
{
score_register_sim_regno (struct gdbarch *gdbarch, int regnum)
{
gdb_assert (regnum >= 0
- && regnum < ((target_mach == bfd_mach_score7)
+ && regnum < ((target_mach == bfd_mach_score7)
? SCORE7_NUM_REGS : SCORE3_NUM_REGS));
return regnum;
}
#endif
-static int
-score_print_insn (bfd_vma memaddr, struct disassemble_info *info)
-{
- if (info->endian == BFD_ENDIAN_BIG)
- return print_insn_big_score (memaddr, info);
- else
- return print_insn_little_score (memaddr, info);
-}
-
static inst_t *
score7_fetch_inst (struct gdbarch *gdbarch, CORE_ADDR addr, gdb_byte *memblock)
{
int big;
int ret;
- if (target_has_execution && memblock != NULL)
+ if (target_has_execution () && memblock != NULL)
{
/* Fetch instruction from local MEMBLOCK. */
memcpy (buf, memblock, SCORE_INSTLEN);
/* Fetch instruction from target. */
ret = target_read_memory (addr & ~0x3, buf, SCORE_INSTLEN);
if (ret)
- {
- error (_("Error: target_read_memory in file:%s, line:%d!"),
- __FILE__, __LINE__);
- return 0;
- }
+ {
+ error (_("Error: target_read_memory in file:%s, line:%d!"),
+ __FILE__, __LINE__);
+ return 0;
+ }
}
inst.raw = extract_unsigned_integer (buf, SCORE_INSTLEN, byte_order);
if (inst.len == 2)
{
if (big ^ ((addr & 0x2) == 2))
- inst.v = G_FLD (inst.v, 29, 15);
+ inst.v = G_FLD (inst.v, 29, 15);
else
- inst.v = G_FLD (inst.v, 14, 0);
+ inst.v = G_FLD (inst.v, 14, 0);
}
return &inst;
}
* 0 1 0 * # 2
* 0 1 1 0 # 3
0 1 1 0 * # 6
- table 2 (column 1, 2, 3)
+ table 2 (column 1, 2, 3)
* 0 0 * * # 0, 4
0 1 0 * * # 2
1 1 0 * * # 6
{
ret = target_read_memory (adjust_pc + 2 * i, buf[i], EXTRACT_LEN);
if (ret != 0)
- {
- buf[i][0] = '\0';
- buf[i][1] = '\0';
+ {
+ buf[i][0] = '\0';
+ buf[i][1] = '\0';
if (i == 2)
- error (_("Error: target_read_memory in file:%s, line:%d!"),
+ error (_("Error: target_read_memory in file:%s, line:%d!"),
__FILE__, __LINE__);
- }
+ }
raw = extract_unsigned_integer (buf[i], EXTRACT_LEN, byte_order);
cbits = (cbits << 1) | (raw >> 15);
for (; count > 0; i++, count--)
{
inst.raw = (inst.raw << 16)
- | extract_unsigned_integer (buf[i], EXTRACT_LEN, byte_order);
+ | extract_unsigned_integer (buf[i], EXTRACT_LEN, byte_order);
}
switch (inst.len)
return &inst;
}
-static const gdb_byte *
-score7_breakpoint_from_pc (struct gdbarch *gdbarch, CORE_ADDR *pcptr,
- int *lenptr)
+/* Implement the breakpoint_kind_from_pc gdbarch method. */
+
+static int
+score7_breakpoint_kind_from_pc (struct gdbarch *gdbarch, CORE_ADDR *pcptr)
{
- enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
- gdb_byte buf[SCORE_INSTLEN] = { 0 };
int ret;
unsigned int raw;
+ enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
+ gdb_byte buf[SCORE_INSTLEN] = { 0 };
if ((ret = target_read_memory (*pcptr & ~0x3, buf, SCORE_INSTLEN)) != 0)
{
error (_("Error: target_read_memory in file:%s, line:%d!"),
- __FILE__, __LINE__);
+ __FILE__, __LINE__);
}
raw = extract_unsigned_integer (buf, SCORE_INSTLEN, byte_order);
- if (byte_order == BFD_ENDIAN_BIG)
+ if (!(raw & 0x80008000))
+ {
+ /* 16bits instruction. */
+ *pcptr &= ~0x1;
+ return 2;
+ }
+ else
{
- if (!(raw & 0x80008000))
- {
- /* 16bits instruction. */
- static gdb_byte big_breakpoint16[] = { 0x60, 0x02 };
- *pcptr &= ~0x1;
- *lenptr = sizeof (big_breakpoint16);
- return big_breakpoint16;
- }
+ /* 32bits instruction. */
+ *pcptr &= ~0x3;
+ return 4;
+ }
+}
+
+/* Implement the sw_breakpoint_from_kind gdbarch method. */
+
+static const gdb_byte *
+score7_sw_breakpoint_from_kind (struct gdbarch *gdbarch, int kind, int *size)
+{
+ enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
+
+ *size = kind;
+
+ if (kind == 4)
+ {
+ static gdb_byte big_breakpoint32[] = { 0x80, 0x00, 0x80, 0x06 };
+ static gdb_byte little_breakpoint32[] = { 0x06, 0x80, 0x00, 0x80 };
+
+ if (byte_order == BFD_ENDIAN_BIG)
+ return big_breakpoint32;
else
- {
- /* 32bits instruction. */
- static gdb_byte big_breakpoint32[] = { 0x80, 0x00, 0x80, 0x06 };
- *pcptr &= ~0x3;
- *lenptr = sizeof (big_breakpoint32);
- return big_breakpoint32;
- }
+ return little_breakpoint32;
}
else
{
- if (!(raw & 0x80008000))
- {
- /* 16bits instruction. */
- static gdb_byte little_breakpoint16[] = { 0x02, 0x60 };
- *pcptr &= ~0x1;
- *lenptr = sizeof (little_breakpoint16);
- return little_breakpoint16;
- }
+ static gdb_byte big_breakpoint16[] = { 0x60, 0x02 };
+ static gdb_byte little_breakpoint16[] = { 0x02, 0x60 };
+
+ if (byte_order == BFD_ENDIAN_BIG)
+ return big_breakpoint16;
else
- {
- /* 32bits instruction. */
- static gdb_byte little_breakpoint32[] = { 0x06, 0x80, 0x00, 0x80 };
- *pcptr &= ~0x3;
- *lenptr = sizeof (little_breakpoint32);
- return little_breakpoint32;
- }
+ return little_breakpoint16;
}
}
-static const gdb_byte *
-score3_breakpoint_from_pc (struct gdbarch *gdbarch, CORE_ADDR *pcptr,
- int *lenptr)
+/* Implement the breakpoint_kind_from_pc gdbarch method. */
+
+static int
+score3_breakpoint_kind_from_pc (struct gdbarch *gdbarch, CORE_ADDR *pcptr)
{
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
- CORE_ADDR adjust_pc = *pcptr;
int len;
+
+ score3_adjust_pc_and_fetch_inst (pcptr, &len, byte_order);
+
+ return len;
+}
+
+/* Implement the sw_breakpoint_from_kind gdbarch method. */
+
+static const gdb_byte *
+score3_sw_breakpoint_from_kind (struct gdbarch *gdbarch, int kind, int *size)
+{
+ int index = 0;
+ enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
static gdb_byte score_break_insns[6][6] = {
/* The following three instructions are big endian. */
{ 0x00, 0x20 },
{ 0x00, 0x80, 0x06, 0x00 },
{ 0x00, 0x80, 0x00, 0x80, 0x00, 0x00 }};
- gdb_byte *p = NULL;
- int index = 0;
-
- score3_adjust_pc_and_fetch_inst (&adjust_pc, &len, byte_order);
+ *size = kind;
- index = ((byte_order == BFD_ENDIAN_BIG) ? 0 : 3) + (len / 2 - 1);
- p = score_break_insns[index];
-
- *pcptr = adjust_pc;
- *lenptr = len;
-
- return p;
+ index = ((byte_order == BFD_ENDIAN_BIG) ? 0 : 3) + (kind / 2 - 1);
+ return score_break_insns[index];
}
static CORE_ADDR
static void
score_xfer_register (struct regcache *regcache, int regnum, int length,
- enum bfd_endian endian, gdb_byte *readbuf,
- const gdb_byte *writebuf, int buf_offset)
+ enum bfd_endian endian, gdb_byte *readbuf,
+ const gdb_byte *writebuf, int buf_offset)
{
int reg_offset = 0;
gdb_assert (regnum >= 0
- && regnum < ((target_mach == bfd_mach_score7)
+ && regnum < ((target_mach == bfd_mach_score7)
? SCORE7_NUM_REGS : SCORE3_NUM_REGS));
switch (endian)
break;
default:
error (_("Error: score_xfer_register in file:%s, line:%d!"),
- __FILE__, __LINE__);
+ __FILE__, __LINE__);
}
if (readbuf != NULL)
- regcache_cooked_read_part (regcache, regnum, reg_offset, length,
- readbuf + buf_offset);
+ regcache->cooked_read_part (regnum, reg_offset, length,
+ readbuf + buf_offset);
if (writebuf != NULL)
- regcache_cooked_write_part (regcache, regnum, reg_offset, length,
- writebuf + buf_offset);
+ regcache->cooked_write_part (regnum, reg_offset, length,
+ writebuf + buf_offset);
}
static enum return_value_convention
score_return_value (struct gdbarch *gdbarch, struct value *function,
- struct type *type, struct regcache *regcache,
- gdb_byte * readbuf, const gdb_byte * writebuf)
+ struct type *type, struct regcache *regcache,
+ gdb_byte * readbuf, const gdb_byte * writebuf)
{
- if (TYPE_CODE (type) == TYPE_CODE_STRUCT
- || TYPE_CODE (type) == TYPE_CODE_UNION
- || TYPE_CODE (type) == TYPE_CODE_ARRAY)
+ if (type->code () == TYPE_CODE_STRUCT
+ || type->code () == TYPE_CODE_UNION
+ || type->code () == TYPE_CODE_ARRAY)
return RETURN_VALUE_STRUCT_CONVENTION;
else
{
int offset;
int regnum;
for (offset = 0, regnum = SCORE_A0_REGNUM;
- offset < TYPE_LENGTH (type);
- offset += SCORE_REGSIZE, regnum++)
- {
- int xfer = SCORE_REGSIZE;
-
- if (offset + xfer > TYPE_LENGTH (type))
- xfer = TYPE_LENGTH (type) - offset;
- score_xfer_register (regcache, regnum, xfer,
+ offset < TYPE_LENGTH (type);
+ offset += SCORE_REGSIZE, regnum++)
+ {
+ int xfer = SCORE_REGSIZE;
+
+ if (offset + xfer > TYPE_LENGTH (type))
+ xfer = TYPE_LENGTH (type) - offset;
+ score_xfer_register (regcache, regnum, xfer,
gdbarch_byte_order(gdbarch),
- readbuf, writebuf, offset);
- }
+ readbuf, writebuf, offset);
+ }
return RETURN_VALUE_REGISTER_CONVENTION;
}
}
-static struct frame_id
-score_dummy_id (struct gdbarch *gdbarch, struct frame_info *this_frame)
-{
- return frame_id_build (get_frame_register_unsigned (this_frame,
- SCORE_SP_REGNUM),
- get_frame_pc (this_frame));
-}
-
static int
score_type_needs_double_align (struct type *type)
{
- enum type_code typecode = TYPE_CODE (type);
+ enum type_code typecode = type->code ();
if ((typecode == TYPE_CODE_INT && TYPE_LENGTH (type) == 8)
|| (typecode == TYPE_CODE_FLT && TYPE_LENGTH (type) == 8))
{
int i, n;
- n = TYPE_NFIELDS (type);
+ n = type->num_fields ();
for (i = 0; i < n; i++)
- if (score_type_needs_double_align (TYPE_FIELD_TYPE (type, i)))
- return 1;
+ if (score_type_needs_double_align (type->field (i).type ()))
+ return 1;
return 0;
}
return 0;
static CORE_ADDR
score_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
- struct regcache *regcache, CORE_ADDR bp_addr,
- int nargs, struct value **args, CORE_ADDR sp,
- int struct_return, CORE_ADDR struct_addr)
+ struct regcache *regcache, CORE_ADDR bp_addr,
+ int nargs, struct value **args, CORE_ADDR sp,
+ function_call_return_method return_method,
+ CORE_ADDR struct_addr)
{
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
int argnum;
sp = align_down (sp, 16);
for (argnum = 0; argnum < nargs; argnum++)
arglen += align_up (TYPE_LENGTH (value_type (args[argnum])),
- SCORE_REGSIZE);
+ SCORE_REGSIZE);
sp -= align_up (arglen, 16);
argreg = SCORE_BEGIN_ARG_REGNUM;
/* Step 3, Check if struct return then save the struct address to
r4 and increase the stack_offset by 4. */
- if (struct_return)
+ if (return_method == return_method_struct)
{
regcache_cooked_write_unsigned (regcache, argreg++, struct_addr);
stack_offset += SCORE_REGSIZE;
{
struct value *arg = args[argnum];
struct type *arg_type = check_typedef (value_type (arg));
- enum type_code typecode = TYPE_CODE (arg_type);
+ enum type_code typecode = arg_type->code ();
const gdb_byte *val = value_contents (arg);
int downward_offset = 0;
- int odd_sized_struct_p;
int arg_last_part_p = 0;
arglen = TYPE_LENGTH (arg_type);
- odd_sized_struct_p = (arglen > SCORE_REGSIZE
- && arglen % SCORE_REGSIZE != 0);
/* If a arg should be aligned to 8 bytes (long long or double),
- the value should be put to even register numbers. */
+ the value should be put to even register numbers. */
if (score_type_needs_double_align (arg_type))
- {
- if (argreg & 1)
- argreg++;
- }
+ {
+ if (argreg & 1)
+ argreg++;
+ }
/* If sizeof a block < SCORE_REGSIZE, then Score GCC will chose
- the default "downward"/"upward" method:
+ the default "downward"/"upward" method:
- Example:
+ Example:
- struct struc
- {
- char a; char b; char c;
- } s = {'a', 'b', 'c'};
+ struct struc
+ {
+ char a; char b; char c;
+ } s = {'a', 'b', 'c'};
- Big endian: s = {X, 'a', 'b', 'c'}
- Little endian: s = {'a', 'b', 'c', X}
+ Big endian: s = {X, 'a', 'b', 'c'}
+ Little endian: s = {'a', 'b', 'c', X}
- Where X is a hole. */
+ Where X is a hole. */
if (gdbarch_byte_order(gdbarch) == BFD_ENDIAN_BIG
- && (typecode == TYPE_CODE_STRUCT
- || typecode == TYPE_CODE_UNION)
- && argreg > SCORE_LAST_ARG_REGNUM
- && arglen < SCORE_REGSIZE)
- downward_offset += (SCORE_REGSIZE - arglen);
+ && (typecode == TYPE_CODE_STRUCT
+ || typecode == TYPE_CODE_UNION)
+ && argreg > SCORE_LAST_ARG_REGNUM
+ && arglen < SCORE_REGSIZE)
+ downward_offset += (SCORE_REGSIZE - arglen);
while (arglen > 0)
- {
- int partial_len = arglen < SCORE_REGSIZE ? arglen : SCORE_REGSIZE;
- ULONGEST regval = extract_unsigned_integer (val, partial_len,
+ {
+ int partial_len = arglen < SCORE_REGSIZE ? arglen : SCORE_REGSIZE;
+ ULONGEST regval = extract_unsigned_integer (val, partial_len,
byte_order);
- /* The last part of a arg should shift left when
- gdbarch_byte_order is BFD_ENDIAN_BIG. */
- if (byte_order == BFD_ENDIAN_BIG
- && arg_last_part_p == 1
- && (typecode == TYPE_CODE_STRUCT
- || typecode == TYPE_CODE_UNION))
- regval <<= ((SCORE_REGSIZE - partial_len) * TARGET_CHAR_BIT);
-
- /* Always increase the stack_offset and save args to stack. */
- addr = sp + stack_offset + downward_offset;
- write_memory (addr, val, partial_len);
-
- if (argreg <= SCORE_LAST_ARG_REGNUM)
- {
- regcache_cooked_write_unsigned (regcache, argreg++, regval);
- if (arglen > SCORE_REGSIZE && arglen < SCORE_REGSIZE * 2)
- arg_last_part_p = 1;
- }
-
- val += partial_len;
- arglen -= partial_len;
- stack_offset += align_up (partial_len, SCORE_REGSIZE);
- }
+ /* The last part of a arg should shift left when
+ gdbarch_byte_order is BFD_ENDIAN_BIG. */
+ if (byte_order == BFD_ENDIAN_BIG
+ && arg_last_part_p == 1
+ && (typecode == TYPE_CODE_STRUCT
+ || typecode == TYPE_CODE_UNION))
+ regval <<= ((SCORE_REGSIZE - partial_len) * TARGET_CHAR_BIT);
+
+ /* Always increase the stack_offset and save args to stack. */
+ addr = sp + stack_offset + downward_offset;
+ write_memory (addr, val, partial_len);
+
+ if (argreg <= SCORE_LAST_ARG_REGNUM)
+ {
+ regcache_cooked_write_unsigned (regcache, argreg++, regval);
+ if (arglen > SCORE_REGSIZE && arglen < SCORE_REGSIZE * 2)
+ arg_last_part_p = 1;
+ }
+
+ val += partial_len;
+ arglen -= partial_len;
+ stack_offset += align_up (partial_len, SCORE_REGSIZE);
+ }
}
/* Step 5, Save SP. */
{
inst_t *inst = score7_fetch_inst (gdbarch, cpc, NULL);
if (!inst)
- break;
+ break;
if ((inst->len == 4) && !stack_sub
- && (G_FLD (inst->v, 29, 25) == 0x1
- && G_FLD (inst->v, 24, 20) == 0x0))
- {
- /* addi r0, offset */
- stack_sub = cpc + SCORE_INSTLEN;
- pc = cpc + SCORE_INSTLEN;
- }
+ && (G_FLD (inst->v, 29, 25) == 0x1
+ && G_FLD (inst->v, 24, 20) == 0x0))
+ {
+ /* addi r0, offset */
+ stack_sub = cpc + SCORE_INSTLEN;
+ pc = cpc + SCORE_INSTLEN;
+ }
else if ((inst->len == 4)
- && (G_FLD (inst->v, 29, 25) == 0x0)
- && (G_FLD (inst->v, 24, 20) == 0x2)
- && (G_FLD (inst->v, 19, 15) == 0x0)
- && (G_FLD (inst->v, 14, 10) == 0xF)
- && (G_FLD (inst->v, 9, 0) == 0x56))
- {
- /* mv r2, r0 */
- pc = cpc + SCORE_INSTLEN;
- break;
- }
+ && (G_FLD (inst->v, 29, 25) == 0x0)
+ && (G_FLD (inst->v, 24, 20) == 0x2)
+ && (G_FLD (inst->v, 19, 15) == 0x0)
+ && (G_FLD (inst->v, 14, 10) == 0xF)
+ && (G_FLD (inst->v, 9, 0) == 0x56))
+ {
+ /* mv r2, r0 */
+ pc = cpc + SCORE_INSTLEN;
+ break;
+ }
else if ((inst->len == 2)
- && (G_FLD (inst->v, 14, 12) == 0x0)
- && (G_FLD (inst->v, 11, 8) == 0x2)
- && (G_FLD (inst->v, 7, 4) == 0x0)
- && (G_FLD (inst->v, 3, 0) == 0x3))
- {
- /* mv! r2, r0 */
- pc = cpc + SCORE16_INSTLEN;
- break;
- }
+ && (G_FLD (inst->v, 14, 12) == 0x0)
+ && (G_FLD (inst->v, 11, 8) == 0x2)
+ && (G_FLD (inst->v, 7, 4) == 0x0)
+ && (G_FLD (inst->v, 3, 0) == 0x3))
+ {
+ /* mv! r2, r0 */
+ pc = cpc + SCORE16_INSTLEN;
+ break;
+ }
else if ((inst->len == 2)
- && ((G_FLD (inst->v, 14, 12) == 3) /* j15 form */
- || (G_FLD (inst->v, 14, 12) == 4) /* b15 form */
- || (G_FLD (inst->v, 14, 12) == 0x0
- && G_FLD (inst->v, 3, 0) == 0x4))) /* br! */
- break;
+ && ((G_FLD (inst->v, 14, 12) == 3) /* j15 form */
+ || (G_FLD (inst->v, 14, 12) == 4) /* b15 form */
+ || (G_FLD (inst->v, 14, 12) == 0x0
+ && G_FLD (inst->v, 3, 0) == 0x4))) /* br! */
+ break;
else if ((inst->len == 4)
- && ((G_FLD (inst->v, 29, 25) == 2) /* j32 form */
- || (G_FLD (inst->v, 29, 25) == 4) /* b32 form */
- || (G_FLD (inst->v, 29, 25) == 0x0
- && G_FLD (inst->v, 6, 1) == 0x4))) /* br */
- break;
+ && ((G_FLD (inst->v, 29, 25) == 2) /* j32 form */
+ || (G_FLD (inst->v, 29, 25) == 4) /* b32 form */
+ || (G_FLD (inst->v, 29, 25) == 0x0
+ && G_FLD (inst->v, 6, 1) == 0x4))) /* br */
+ break;
cpc += (inst->len == 2) ? SCORE16_INSTLEN : SCORE_INSTLEN;
}
gdbarch_byte_order (gdbarch));
if (!inst)
- break;
+ break;
if (inst->len == 4 && !stack_sub
- && (G_FLD (inst->v, 29, 25) == 0x1)
- && (G_FLD (inst->v, 19, 17) == 0x0)
+ && (G_FLD (inst->v, 29, 25) == 0x1)
+ && (G_FLD (inst->v, 19, 17) == 0x0)
&& (G_FLD (inst->v, 24, 20) == 0x0))
- {
- /* addi r0, offset */
- stack_sub = cpc + inst->len;
- pc = cpc + inst->len;
- }
+ {
+ /* addi r0, offset */
+ stack_sub = cpc + inst->len;
+ pc = cpc + inst->len;
+ }
else if (inst->len == 4
- && (G_FLD (inst->v, 29, 25) == 0x0)
+ && (G_FLD (inst->v, 29, 25) == 0x0)
&& (G_FLD (inst->v, 24, 20) == 0x2)
&& (G_FLD (inst->v, 19, 15) == 0x0)
&& (G_FLD (inst->v, 14, 10) == 0xF)
&& (G_FLD (inst->v, 9, 0) == 0x56))
- {
- /* mv r2, r0 */
- pc = cpc + inst->len;
- break;
- }
+ {
+ /* mv r2, r0 */
+ pc = cpc + inst->len;
+ break;
+ }
else if ((inst->len == 2)
- && (G_FLD (inst->v, 14, 10) == 0x10)
- && (G_FLD (inst->v, 9, 5) == 0x2)
+ && (G_FLD (inst->v, 14, 10) == 0x10)
+ && (G_FLD (inst->v, 9, 5) == 0x2)
&& (G_FLD (inst->v, 4, 0) == 0x0))
- {
- /* mv! r2, r0 */
- pc = cpc + inst->len;
- break;
- }
+ {
+ /* mv! r2, r0 */
+ pc = cpc + inst->len;
+ break;
+ }
else if (inst->len == 2
- && ((G_FLD (inst->v, 14, 12) == 3) /* b15 form */
- || (G_FLD (inst->v, 14, 12) == 0x0
- && G_FLD (inst->v, 11, 5) == 0x4))) /* br! */
- break;
+ && ((G_FLD (inst->v, 14, 12) == 3) /* b15 form */
+ || (G_FLD (inst->v, 14, 12) == 0x0
+ && G_FLD (inst->v, 11, 5) == 0x4))) /* br! */
+ break;
else if (inst->len == 4
- && ((G_FLD (inst->v, 29, 25) == 2) /* j32 form */
- || (G_FLD (inst->v, 29, 25) == 4))) /* b32 form */
- break;
+ && ((G_FLD (inst->v, 29, 25) == 2) /* j32 form */
+ || (G_FLD (inst->v, 29, 25) == 4))) /* b32 form */
+ break;
cpc += inst->len;
}
return pc;
}
+/* Implement the stack_frame_destroyed_p gdbarch method. */
+
static int
-score7_in_function_epilogue_p (struct gdbarch *gdbarch, CORE_ADDR cur_pc)
+score7_stack_frame_destroyed_p (struct gdbarch *gdbarch, CORE_ADDR cur_pc)
{
inst_t *inst = score7_fetch_inst (gdbarch, cur_pc, NULL);
if (inst->v == 0x23)
return 1; /* mv! r0, r2 */
else if (G_FLD (inst->v, 14, 12) == 0x2
- && G_FLD (inst->v, 3, 0) == 0xa)
+ && G_FLD (inst->v, 3, 0) == 0xa)
return 1; /* pop! */
else if (G_FLD (inst->v, 14, 12) == 0x0
- && G_FLD (inst->v, 7, 0) == 0x34)
+ && G_FLD (inst->v, 7, 0) == 0x34)
return 1; /* br! r3 */
else if (G_FLD (inst->v, 29, 15) == 0x2
- && G_FLD (inst->v, 6, 1) == 0x2b)
+ && G_FLD (inst->v, 6, 1) == 0x2b)
return 1; /* mv r0, r2 */
else if (G_FLD (inst->v, 29, 25) == 0x0
- && G_FLD (inst->v, 6, 1) == 0x4
- && G_FLD (inst->v, 19, 15) == 0x3)
+ && G_FLD (inst->v, 6, 1) == 0x4
+ && G_FLD (inst->v, 19, 15) == 0x3)
return 1; /* br r3 */
else
return 0;
}
+/* Implement the stack_frame_destroyed_p gdbarch method. */
+
static int
-score3_in_function_epilogue_p (struct gdbarch *gdbarch, CORE_ADDR cur_pc)
+score3_stack_frame_destroyed_p (struct gdbarch *gdbarch, CORE_ADDR cur_pc)
{
CORE_ADDR pc = cur_pc;
inst_t *inst
&& (G_FLD (inst->v, 4, 0) == 0x2))
return 1; /* mv! r0, r2 */
else if (inst->len == 4
- && (G_FLD (inst->v, 29, 25) == 0x0)
- && (G_FLD (inst->v, 24, 20) == 0x2)
- && (G_FLD (inst->v, 19, 15) == 0x0)
+ && (G_FLD (inst->v, 29, 25) == 0x0)
+ && (G_FLD (inst->v, 24, 20) == 0x2)
+ && (G_FLD (inst->v, 19, 15) == 0x0)
&& (G_FLD (inst->v, 14, 10) == 0xF)
&& (G_FLD (inst->v, 9, 0) == 0x56))
return 1; /* mv r0, r2 */
else if (inst->len == 2
- && (G_FLD (inst->v, 14, 12) == 0x0)
- && (G_FLD (inst->v, 11, 5) == 0x2))
+ && (G_FLD (inst->v, 14, 12) == 0x0)
+ && (G_FLD (inst->v, 11, 5) == 0x2))
return 1; /* pop! */
else if (inst->len == 2
- && (G_FLD (inst->v, 14, 12) == 0x0)
- && (G_FLD (inst->v, 11, 7) == 0x0)
- && (G_FLD (inst->v, 6, 5) == 0x2))
+ && (G_FLD (inst->v, 14, 12) == 0x0)
+ && (G_FLD (inst->v, 11, 7) == 0x0)
+ && (G_FLD (inst->v, 6, 5) == 0x2))
return 1; /* rpop! */
else if (inst->len == 2
- && (G_FLD (inst->v, 14, 12) == 0x0)
- && (G_FLD (inst->v, 11, 5) == 0x4)
- && (G_FLD (inst->v, 4, 0) == 0x3))
+ && (G_FLD (inst->v, 14, 12) == 0x0)
+ && (G_FLD (inst->v, 11, 5) == 0x4)
+ && (G_FLD (inst->v, 4, 0) == 0x3))
return 1; /* br! r3 */
else if (inst->len == 4
- && (G_FLD (inst->v, 29, 25) == 0x0)
- && (G_FLD (inst->v, 24, 20) == 0x0)
- && (G_FLD (inst->v, 19, 15) == 0x3)
- && (G_FLD (inst->v, 14, 10) == 0xF)
- && (G_FLD (inst->v, 9, 0) == 0x8))
+ && (G_FLD (inst->v, 29, 25) == 0x0)
+ && (G_FLD (inst->v, 24, 20) == 0x0)
+ && (G_FLD (inst->v, 19, 15) == 0x3)
+ && (G_FLD (inst->v, 14, 10) == 0xF)
+ && (G_FLD (inst->v, 9, 0) == 0x8))
return 1; /* br r3 */
else
return 0;
int ret;
gdb_byte *memblock = NULL;
- if (size < 0)
- {
- error (_("Error: malloc size < 0 in file:%s, line:%d!"),
- __FILE__, __LINE__);
- return NULL;
- }
- else if (size == 0)
+ if (size == 0)
return NULL;
- memblock = xmalloc (size);
+ memblock = (gdb_byte *) xmalloc (size);
memset (memblock, 0, size);
ret = target_read_memory (addr & ~0x3, memblock, size);
if (ret)
{
error (_("Error: target_read_memory in file:%s, line:%d!"),
- __FILE__, __LINE__);
+ __FILE__, __LINE__);
return NULL;
}
return memblock;
}
static void
-score7_free_memblock (char *memblock)
+score7_free_memblock (gdb_byte *memblock)
{
xfree (memblock);
}
static void
score7_adjust_memblock_ptr (gdb_byte **memblock, CORE_ADDR prev_pc,
- CORE_ADDR cur_pc)
+ CORE_ADDR cur_pc)
{
if (prev_pc == -1)
{
static void
score7_analyze_prologue (CORE_ADDR startaddr, CORE_ADDR pc,
- struct frame_info *this_frame,
- struct score_frame_cache *this_cache)
+ struct frame_info *this_frame,
+ struct score_frame_cache *this_cache)
{
struct gdbarch *gdbarch = get_frame_arch (this_frame);
CORE_ADDR sp;
{
inst_t *inst = NULL;
if (memblock != NULL)
- {
- /* Reading memory block from target succefully and got all
- the instructions(from STARTADDR to PC) needed. */
- score7_adjust_memblock_ptr (&memblock, prev_pc, cur_pc);
- inst = score7_fetch_inst (gdbarch, cur_pc, memblock);
- }
+ {
+ /* Reading memory block from target successfully and got all
+ the instructions(from STARTADDR to PC) needed. */
+ score7_adjust_memblock_ptr (&memblock, prev_pc, cur_pc);
+ inst = score7_fetch_inst (gdbarch, cur_pc, memblock);
+ }
else
- {
- /* Otherwise, we fetch 4 bytes from target, and GDB also
- work correctly. */
- inst = score7_fetch_inst (gdbarch, cur_pc, NULL);
- }
+ {
+ /* Otherwise, we fetch 4 bytes from target, and GDB also
+ work correctly. */
+ inst = score7_fetch_inst (gdbarch, cur_pc, NULL);
+ }
/* FIXME: make a full-power prologue analyzer. */
if (inst->len == 2)
- {
- inst_len = SCORE16_INSTLEN;
-
- if (G_FLD (inst->v, 14, 12) == 0x2
- && G_FLD (inst->v, 3, 0) == 0xe)
- {
- /* push! */
- sp_offset += 4;
-
- if (G_FLD (inst->v, 11, 7) == 0x6
- && ra_offset_p == 0)
- {
- /* push! r3, [r0] */
- ra_offset = sp_offset;
- ra_offset_p = 1;
- }
- else if (G_FLD (inst->v, 11, 7) == 0x4
- && fp_offset_p == 0)
- {
- /* push! r2, [r0] */
- fp_offset = sp_offset;
- fp_offset_p = 1;
- }
- }
- else if (G_FLD (inst->v, 14, 12) == 0x2
- && G_FLD (inst->v, 3, 0) == 0xa)
- {
- /* pop! */
- sp_offset -= 4;
- }
- else if (G_FLD (inst->v, 14, 7) == 0xc1
- && G_FLD (inst->v, 2, 0) == 0x0)
- {
- /* subei! r0, n */
- sp_offset += (int) pow (2, G_FLD (inst->v, 6, 3));
- }
- else if (G_FLD (inst->v, 14, 7) == 0xc0
- && G_FLD (inst->v, 2, 0) == 0x0)
- {
- /* addei! r0, n */
- sp_offset -= (int) pow (2, G_FLD (inst->v, 6, 3));
- }
- }
+ {
+ inst_len = SCORE16_INSTLEN;
+
+ if (G_FLD (inst->v, 14, 12) == 0x2
+ && G_FLD (inst->v, 3, 0) == 0xe)
+ {
+ /* push! */
+ sp_offset += 4;
+
+ if (G_FLD (inst->v, 11, 7) == 0x6
+ && ra_offset_p == 0)
+ {
+ /* push! r3, [r0] */
+ ra_offset = sp_offset;
+ ra_offset_p = 1;
+ }
+ else if (G_FLD (inst->v, 11, 7) == 0x4
+ && fp_offset_p == 0)
+ {
+ /* push! r2, [r0] */
+ fp_offset = sp_offset;
+ fp_offset_p = 1;
+ }
+ }
+ else if (G_FLD (inst->v, 14, 12) == 0x2
+ && G_FLD (inst->v, 3, 0) == 0xa)
+ {
+ /* pop! */
+ sp_offset -= 4;
+ }
+ else if (G_FLD (inst->v, 14, 7) == 0xc1
+ && G_FLD (inst->v, 2, 0) == 0x0)
+ {
+ /* subei! r0, n */
+ sp_offset += (int) pow (2.0, G_FLD (inst->v, 6, 3));
+ }
+ else if (G_FLD (inst->v, 14, 7) == 0xc0
+ && G_FLD (inst->v, 2, 0) == 0x0)
+ {
+ /* addei! r0, n */
+ /* Solaris 11+gcc 5.5 has ambiguous overloads of pow, so we
+ pass 2.0 instead of 2 to get the right one. */
+ sp_offset -= (int) pow (2.0, G_FLD (inst->v, 6, 3));
+ }
+ }
else
- {
- inst_len = SCORE_INSTLEN;
-
- if (G_FLD(inst->v, 29, 25) == 0x3
- && G_FLD(inst->v, 2, 0) == 0x4
- && G_FLD(inst->v, 19, 15) == 0)
- {
- /* sw rD, [r0, offset]+ */
- sp_offset += SCORE_INSTLEN;
-
- if (G_FLD(inst->v, 24, 20) == 0x3)
- {
- /* rD = r3 */
- if (ra_offset_p == 0)
- {
- ra_offset = sp_offset;
- ra_offset_p = 1;
- }
- }
- else if (G_FLD(inst->v, 24, 20) == 0x2)
- {
- /* rD = r2 */
- if (fp_offset_p == 0)
- {
- fp_offset = sp_offset;
- fp_offset_p = 1;
- }
- }
- }
- else if (G_FLD(inst->v, 29, 25) == 0x14
- && G_FLD(inst->v, 19,15) == 0)
- {
- /* sw rD, [r0, offset] */
- if (G_FLD(inst->v, 24, 20) == 0x3)
- {
- /* rD = r3 */
- ra_offset = sp_offset - G_FLD(inst->v, 14, 0);
- ra_offset_p = 1;
- }
- else if (G_FLD(inst->v, 24, 20) == 0x2)
- {
- /* rD = r2 */
- fp_offset = sp_offset - G_FLD(inst->v, 14, 0);
- fp_offset_p = 1;
- }
- }
- else if (G_FLD (inst->v, 29, 15) == 0x1c60
- && G_FLD (inst->v, 2, 0) == 0x0)
- {
- /* lw r3, [r0]+, 4 */
- sp_offset -= SCORE_INSTLEN;
- ra_offset_p = 1;
- }
- else if (G_FLD (inst->v, 29, 15) == 0x1c40
- && G_FLD (inst->v, 2, 0) == 0x0)
- {
- /* lw r2, [r0]+, 4 */
- sp_offset -= SCORE_INSTLEN;
- fp_offset_p = 1;
- }
-
- else if (G_FLD (inst->v, 29, 17) == 0x100
- && G_FLD (inst->v, 0, 0) == 0x0)
- {
- /* addi r0, -offset */
- sp_offset += 65536 - G_FLD (inst->v, 16, 1);
- }
- else if (G_FLD (inst->v, 29, 17) == 0x110
- && G_FLD (inst->v, 0, 0) == 0x0)
- {
- /* addi r2, offset */
- if (pc - cur_pc > 4)
- {
- unsigned int save_v = inst->v;
- inst_t *inst2 =
- score7_fetch_inst (gdbarch, cur_pc + SCORE_INSTLEN, NULL);
- if (inst2->v == 0x23)
- {
- /* mv! r0, r2 */
- sp_offset -= G_FLD (save_v, 16, 1);
- }
- }
- }
- }
+ {
+ inst_len = SCORE_INSTLEN;
+
+ if (G_FLD(inst->v, 29, 25) == 0x3
+ && G_FLD(inst->v, 2, 0) == 0x4
+ && G_FLD(inst->v, 19, 15) == 0)
+ {
+ /* sw rD, [r0, offset]+ */
+ sp_offset += SCORE_INSTLEN;
+
+ if (G_FLD(inst->v, 24, 20) == 0x3)
+ {
+ /* rD = r3 */
+ if (ra_offset_p == 0)
+ {
+ ra_offset = sp_offset;
+ ra_offset_p = 1;
+ }
+ }
+ else if (G_FLD(inst->v, 24, 20) == 0x2)
+ {
+ /* rD = r2 */
+ if (fp_offset_p == 0)
+ {
+ fp_offset = sp_offset;
+ fp_offset_p = 1;
+ }
+ }
+ }
+ else if (G_FLD(inst->v, 29, 25) == 0x14
+ && G_FLD(inst->v, 19,15) == 0)
+ {
+ /* sw rD, [r0, offset] */
+ if (G_FLD(inst->v, 24, 20) == 0x3)
+ {
+ /* rD = r3 */
+ ra_offset = sp_offset - G_FLD(inst->v, 14, 0);
+ ra_offset_p = 1;
+ }
+ else if (G_FLD(inst->v, 24, 20) == 0x2)
+ {
+ /* rD = r2 */
+ fp_offset = sp_offset - G_FLD(inst->v, 14, 0);
+ fp_offset_p = 1;
+ }
+ }
+ else if (G_FLD (inst->v, 29, 15) == 0x1c60
+ && G_FLD (inst->v, 2, 0) == 0x0)
+ {
+ /* lw r3, [r0]+, 4 */
+ sp_offset -= SCORE_INSTLEN;
+ ra_offset_p = 1;
+ }
+ else if (G_FLD (inst->v, 29, 15) == 0x1c40
+ && G_FLD (inst->v, 2, 0) == 0x0)
+ {
+ /* lw r2, [r0]+, 4 */
+ sp_offset -= SCORE_INSTLEN;
+ fp_offset_p = 1;
+ }
+
+ else if (G_FLD (inst->v, 29, 17) == 0x100
+ && G_FLD (inst->v, 0, 0) == 0x0)
+ {
+ /* addi r0, -offset */
+ sp_offset += 65536 - G_FLD (inst->v, 16, 1);
+ }
+ else if (G_FLD (inst->v, 29, 17) == 0x110
+ && G_FLD (inst->v, 0, 0) == 0x0)
+ {
+ /* addi r2, offset */
+ if (pc - cur_pc > 4)
+ {
+ unsigned int save_v = inst->v;
+ inst_t *inst2 =
+ score7_fetch_inst (gdbarch, cur_pc + SCORE_INSTLEN, NULL);
+ if (inst2->v == 0x23)
+ {
+ /* mv! r0, r2 */
+ sp_offset -= G_FLD (save_v, 16, 1);
+ }
+ }
+ }
+ }
}
/* Save RA. */
if (ra_offset_p == 1)
{
- if (this_cache->saved_regs[SCORE_PC_REGNUM].addr == -1)
- this_cache->saved_regs[SCORE_PC_REGNUM].addr =
- sp + sp_offset - ra_offset;
+ if (this_cache->saved_regs[SCORE_PC_REGNUM].is_realreg ()
+ && this_cache->saved_regs[SCORE_PC_REGNUM].realreg ()
+ == SCORE_PC_REGNUM)
+ this_cache->saved_regs[SCORE_PC_REGNUM].set_addr (sp + sp_offset
+ - ra_offset);
}
else
{
this_cache->saved_regs[SCORE_PC_REGNUM] =
- this_cache->saved_regs[SCORE_RA_REGNUM];
+ this_cache->saved_regs[SCORE_RA_REGNUM];
}
/* Save FP. */
if (fp_offset_p == 1)
{
- if (this_cache->saved_regs[SCORE_FP_REGNUM].addr == -1)
- this_cache->saved_regs[SCORE_FP_REGNUM].addr =
- sp + sp_offset - fp_offset;
+ if (this_cache->saved_regs[SCORE_FP_REGNUM].is_realreg ()
+ && this_cache->saved_regs[SCORE_FP_REGNUM].realreg ()
+ == SCORE_FP_REGNUM)
+ this_cache->saved_regs[SCORE_FP_REGNUM].set_addr (sp + sp_offset
+ - fp_offset);
}
/* Save SP and FP. */
static void
score3_analyze_prologue (CORE_ADDR startaddr, CORE_ADDR pc,
- struct frame_info *this_frame,
- struct score_frame_cache *this_cache)
+ struct frame_info *this_frame,
+ struct score_frame_cache *this_cache)
{
CORE_ADDR sp;
CORE_ADDR fp;
int fp_offset_p = 0;
int inst_len = 0;
- CORE_ADDR prev_pc = -1;
-
sp = get_frame_register_unsigned (this_frame, SCORE_SP_REGNUM);
fp = get_frame_register_unsigned (this_frame, SCORE_FP_REGNUM);
- for (; cur_pc < pc; prev_pc = cur_pc, cur_pc += inst_len)
+ for (; cur_pc < pc; cur_pc += inst_len)
{
inst_t *inst = NULL;
/* FIXME: make a full-power prologue analyzer. */
if (inst->len == 2)
- {
- if (G_FLD (inst->v, 14, 12) == 0x0
- && G_FLD (inst->v, 11, 7) == 0x0
- && G_FLD (inst->v, 6, 5) == 0x3)
- {
- /* push! */
- sp_offset += 4;
-
- if (G_FLD (inst->v, 4, 0) == 0x3
- && ra_offset_p == 0)
- {
- /* push! r3, [r0] */
- ra_offset = sp_offset;
- ra_offset_p = 1;
- }
- else if (G_FLD (inst->v, 4, 0) == 0x2
- && fp_offset_p == 0)
- {
- /* push! r2, [r0] */
- fp_offset = sp_offset;
- fp_offset_p = 1;
- }
- }
- else if (G_FLD (inst->v, 14, 12) == 0x6
- && G_FLD (inst->v, 11, 10) == 0x3)
- {
- /* rpush! */
- int start_r = G_FLD (inst->v, 9, 5);
- int cnt = G_FLD (inst->v, 4, 0);
+ {
+ if (G_FLD (inst->v, 14, 12) == 0x0
+ && G_FLD (inst->v, 11, 7) == 0x0
+ && G_FLD (inst->v, 6, 5) == 0x3)
+ {
+ /* push! */
+ sp_offset += 4;
+
+ if (G_FLD (inst->v, 4, 0) == 0x3
+ && ra_offset_p == 0)
+ {
+ /* push! r3, [r0] */
+ ra_offset = sp_offset;
+ ra_offset_p = 1;
+ }
+ else if (G_FLD (inst->v, 4, 0) == 0x2
+ && fp_offset_p == 0)
+ {
+ /* push! r2, [r0] */
+ fp_offset = sp_offset;
+ fp_offset_p = 1;
+ }
+ }
+ else if (G_FLD (inst->v, 14, 12) == 0x6
+ && G_FLD (inst->v, 11, 10) == 0x3)
+ {
+ /* rpush! */
+ int start_r = G_FLD (inst->v, 9, 5);
+ int cnt = G_FLD (inst->v, 4, 0);
- if ((ra_offset_p == 0)
+ if ((ra_offset_p == 0)
&& (start_r <= SCORE_RA_REGNUM)
- && (SCORE_RA_REGNUM < start_r + cnt))
- {
- /* rpush! contains r3 */
- ra_offset_p = 1;
- ra_offset = sp_offset + 4 * (SCORE_RA_REGNUM - start_r) + 4;
- }
-
- if ((fp_offset_p == 0)
+ && (SCORE_RA_REGNUM < start_r + cnt))
+ {
+ /* rpush! contains r3 */
+ ra_offset_p = 1;
+ ra_offset = sp_offset + 4 * (SCORE_RA_REGNUM - start_r) + 4;
+ }
+
+ if ((fp_offset_p == 0)
&& (start_r <= SCORE_FP_REGNUM)
- && (SCORE_FP_REGNUM < start_r + cnt))
- {
- /* rpush! contains r2 */
- fp_offset_p = 1;
- fp_offset = sp_offset + 4 * (SCORE_FP_REGNUM - start_r) + 4;
- }
-
- sp_offset += 4 * cnt;
- }
- else if (G_FLD (inst->v, 14, 12) == 0x0
- && G_FLD (inst->v, 11, 7) == 0x0
- && G_FLD (inst->v, 6, 5) == 0x2)
- {
- /* pop! */
- sp_offset -= 4;
- }
- else if (G_FLD (inst->v, 14, 12) == 0x6
- && G_FLD (inst->v, 11, 10) == 0x2)
- {
- /* rpop! */
- sp_offset -= 4 * G_FLD (inst->v, 4, 0);
- }
- else if (G_FLD (inst->v, 14, 12) == 0x5
- && G_FLD (inst->v, 11, 10) == 0x3
- && G_FLD (inst->v, 9, 6) == 0x0)
- {
- /* addi! r0, -offset */
- int imm = G_FLD (inst->v, 5, 0);
+ && (SCORE_FP_REGNUM < start_r + cnt))
+ {
+ /* rpush! contains r2 */
+ fp_offset_p = 1;
+ fp_offset = sp_offset + 4 * (SCORE_FP_REGNUM - start_r) + 4;
+ }
+
+ sp_offset += 4 * cnt;
+ }
+ else if (G_FLD (inst->v, 14, 12) == 0x0
+ && G_FLD (inst->v, 11, 7) == 0x0
+ && G_FLD (inst->v, 6, 5) == 0x2)
+ {
+ /* pop! */
+ sp_offset -= 4;
+ }
+ else if (G_FLD (inst->v, 14, 12) == 0x6
+ && G_FLD (inst->v, 11, 10) == 0x2)
+ {
+ /* rpop! */
+ sp_offset -= 4 * G_FLD (inst->v, 4, 0);
+ }
+ else if (G_FLD (inst->v, 14, 12) == 0x5
+ && G_FLD (inst->v, 11, 10) == 0x3
+ && G_FLD (inst->v, 9, 6) == 0x0)
+ {
+ /* addi! r0, -offset */
+ int imm = G_FLD (inst->v, 5, 0);
if (imm >> 5)
imm = -(0x3F - imm + 1);
sp_offset -= imm;
- }
- else if (G_FLD (inst->v, 14, 12) == 0x5
- && G_FLD (inst->v, 11, 10) == 0x3
- && G_FLD (inst->v, 9, 6) == 0x2)
- {
- /* addi! r2, offset */
- if (pc - cur_pc >= 2)
- {
- unsigned int save_v = inst->v;
+ }
+ else if (G_FLD (inst->v, 14, 12) == 0x5
+ && G_FLD (inst->v, 11, 10) == 0x3
+ && G_FLD (inst->v, 9, 6) == 0x2)
+ {
+ /* addi! r2, offset */
+ if (pc - cur_pc >= 2)
+ {
inst_t *inst2;
cur_pc += inst->len;
inst2 = score3_adjust_pc_and_fetch_inst (&cur_pc, NULL,
byte_order);
- if (inst2->len == 2
- && G_FLD (inst2->v, 14, 10) == 0x10
- && G_FLD (inst2->v, 9, 5) == 0x0
- && G_FLD (inst2->v, 4, 0) == 0x2)
- {
- /* mv! r0, r2 */
- int imm = G_FLD (inst->v, 5, 0);
- if (imm >> 5)
- imm = -(0x3F - imm + 1);
- sp_offset -= imm;
- }
- }
+ if (inst2->len == 2
+ && G_FLD (inst2->v, 14, 10) == 0x10
+ && G_FLD (inst2->v, 9, 5) == 0x0
+ && G_FLD (inst2->v, 4, 0) == 0x2)
+ {
+ /* mv! r0, r2 */
+ int imm = G_FLD (inst->v, 5, 0);
+ if (imm >> 5)
+ imm = -(0x3F - imm + 1);
+ sp_offset -= imm;
+ }
+ }
}
- }
+ }
else if (inst->len == 4)
- {
- if (G_FLD (inst->v, 29, 25) == 0x3
- && G_FLD (inst->v, 2, 0) == 0x4
- && G_FLD (inst->v, 24, 20) == 0x3
- && G_FLD (inst->v, 19, 15) == 0x0)
- {
- /* sw r3, [r0, offset]+ */
- sp_offset += inst->len;
- if (ra_offset_p == 0)
- {
- ra_offset = sp_offset;
- ra_offset_p = 1;
- }
- }
- else if (G_FLD (inst->v, 29, 25) == 0x3
- && G_FLD (inst->v, 2, 0) == 0x4
- && G_FLD (inst->v, 24, 20) == 0x2
- && G_FLD (inst->v, 19, 15) == 0x0)
- {
- /* sw r2, [r0, offset]+ */
- sp_offset += inst->len;
- if (fp_offset_p == 0)
- {
- fp_offset = sp_offset;
- fp_offset_p = 1;
- }
- }
- else if (G_FLD (inst->v, 29, 25) == 0x7
- && G_FLD (inst->v, 2, 0) == 0x0
- && G_FLD (inst->v, 24, 20) == 0x3
- && G_FLD (inst->v, 19, 15) == 0x0)
- {
- /* lw r3, [r0]+, 4 */
- sp_offset -= inst->len;
- ra_offset_p = 1;
- }
- else if (G_FLD (inst->v, 29, 25) == 0x7
- && G_FLD (inst->v, 2, 0) == 0x0
- && G_FLD (inst->v, 24, 20) == 0x2
- && G_FLD (inst->v, 19, 15) == 0x0)
- {
- /* lw r2, [r0]+, 4 */
- sp_offset -= inst->len;
- fp_offset_p = 1;
- }
- else if (G_FLD (inst->v, 29, 25) == 0x1
- && G_FLD (inst->v, 19, 17) == 0x0
- && G_FLD (inst->v, 24, 20) == 0x0
- && G_FLD (inst->v, 0, 0) == 0x0)
- {
- /* addi r0, -offset */
- int imm = G_FLD (inst->v, 16, 1);
+ {
+ if (G_FLD (inst->v, 29, 25) == 0x3
+ && G_FLD (inst->v, 2, 0) == 0x4
+ && G_FLD (inst->v, 24, 20) == 0x3
+ && G_FLD (inst->v, 19, 15) == 0x0)
+ {
+ /* sw r3, [r0, offset]+ */
+ sp_offset += inst->len;
+ if (ra_offset_p == 0)
+ {
+ ra_offset = sp_offset;
+ ra_offset_p = 1;
+ }
+ }
+ else if (G_FLD (inst->v, 29, 25) == 0x3
+ && G_FLD (inst->v, 2, 0) == 0x4
+ && G_FLD (inst->v, 24, 20) == 0x2
+ && G_FLD (inst->v, 19, 15) == 0x0)
+ {
+ /* sw r2, [r0, offset]+ */
+ sp_offset += inst->len;
+ if (fp_offset_p == 0)
+ {
+ fp_offset = sp_offset;
+ fp_offset_p = 1;
+ }
+ }
+ else if (G_FLD (inst->v, 29, 25) == 0x7
+ && G_FLD (inst->v, 2, 0) == 0x0
+ && G_FLD (inst->v, 24, 20) == 0x3
+ && G_FLD (inst->v, 19, 15) == 0x0)
+ {
+ /* lw r3, [r0]+, 4 */
+ sp_offset -= inst->len;
+ ra_offset_p = 1;
+ }
+ else if (G_FLD (inst->v, 29, 25) == 0x7
+ && G_FLD (inst->v, 2, 0) == 0x0
+ && G_FLD (inst->v, 24, 20) == 0x2
+ && G_FLD (inst->v, 19, 15) == 0x0)
+ {
+ /* lw r2, [r0]+, 4 */
+ sp_offset -= inst->len;
+ fp_offset_p = 1;
+ }
+ else if (G_FLD (inst->v, 29, 25) == 0x1
+ && G_FLD (inst->v, 19, 17) == 0x0
+ && G_FLD (inst->v, 24, 20) == 0x0
+ && G_FLD (inst->v, 0, 0) == 0x0)
+ {
+ /* addi r0, -offset */
+ int imm = G_FLD (inst->v, 16, 1);
if (imm >> 15)
imm = -(0xFFFF - imm + 1);
- sp_offset -= imm;
- }
- else if (G_FLD (inst->v, 29, 25) == 0x1
- && G_FLD (inst->v, 19, 17) == 0x0
- && G_FLD (inst->v, 24, 20) == 0x2
- && G_FLD (inst->v, 0, 0) == 0x0)
- {
- /* addi r2, offset */
- if (pc - cur_pc >= 2)
- {
- unsigned int save_v = inst->v;
+ sp_offset -= imm;
+ }
+ else if (G_FLD (inst->v, 29, 25) == 0x1
+ && G_FLD (inst->v, 19, 17) == 0x0
+ && G_FLD (inst->v, 24, 20) == 0x2
+ && G_FLD (inst->v, 0, 0) == 0x0)
+ {
+ /* addi r2, offset */
+ if (pc - cur_pc >= 2)
+ {
inst_t *inst2;
cur_pc += inst->len;
inst2 = score3_adjust_pc_and_fetch_inst (&cur_pc, NULL,
byte_order);
- if (inst2->len == 2
- && G_FLD (inst2->v, 14, 10) == 0x10
- && G_FLD (inst2->v, 9, 5) == 0x0
- && G_FLD (inst2->v, 4, 0) == 0x2)
- {
- /* mv! r0, r2 */
- int imm = G_FLD (inst->v, 16, 1);
- if (imm >> 15)
- imm = -(0xFFFF - imm + 1);
- sp_offset -= imm;
- }
- }
- }
- }
+ if (inst2->len == 2
+ && G_FLD (inst2->v, 14, 10) == 0x10
+ && G_FLD (inst2->v, 9, 5) == 0x0
+ && G_FLD (inst2->v, 4, 0) == 0x2)
+ {
+ /* mv! r0, r2 */
+ int imm = G_FLD (inst->v, 16, 1);
+ if (imm >> 15)
+ imm = -(0xFFFF - imm + 1);
+ sp_offset -= imm;
+ }
+ }
+ }
+ }
}
/* Save RA. */
if (ra_offset_p == 1)
{
- if (this_cache->saved_regs[SCORE_PC_REGNUM].addr == -1)
- this_cache->saved_regs[SCORE_PC_REGNUM].addr =
- sp + sp_offset - ra_offset;
+ if (this_cache->saved_regs[SCORE_PC_REGNUM].is_realreg ()
+ && this_cache->saved_regs[SCORE_PC_REGNUM].realreg ()
+ == SCORE_PC_REGNUM)
+ this_cache->saved_regs[SCORE_PC_REGNUM].set_addr (sp + sp_offset
+ - ra_offset);
}
else
{
this_cache->saved_regs[SCORE_PC_REGNUM] =
- this_cache->saved_regs[SCORE_RA_REGNUM];
+ this_cache->saved_regs[SCORE_RA_REGNUM];
}
/* Save FP. */
if (fp_offset_p == 1)
{
- if (this_cache->saved_regs[SCORE_FP_REGNUM].addr == -1)
- this_cache->saved_regs[SCORE_FP_REGNUM].addr =
- sp + sp_offset - fp_offset;
+ if (this_cache->saved_regs[SCORE_FP_REGNUM].is_realreg ()
+ && this_cache->saved_regs[SCORE_FP_REGNUM].realreg ()
+ == SCORE_FP_REGNUM)
+ this_cache->saved_regs[SCORE_FP_REGNUM].set_addr (sp + sp_offset
+ - fp_offset);
}
/* Save SP and FP. */
struct score_frame_cache *cache;
if ((*this_cache) != NULL)
- return (*this_cache);
+ return (struct score_frame_cache *) (*this_cache);
cache = FRAME_OBSTACK_ZALLOC (struct score_frame_cache);
(*this_cache) = cache;
return cache;
if (target_mach == bfd_mach_score3)
- score3_analyze_prologue (start_addr, pc, this_frame, *this_cache);
+ score3_analyze_prologue (start_addr, pc, this_frame,
+ (struct score_frame_cache *) *this_cache);
else
- score7_analyze_prologue (start_addr, pc, this_frame, *this_cache);
+ score7_analyze_prologue (start_addr, pc, this_frame,
+ (struct score_frame_cache *) *this_cache);
}
/* Save SP. */
- trad_frame_set_value (cache->saved_regs, SCORE_SP_REGNUM, cache->base);
+ cache->saved_regs[SCORE_SP_REGNUM].set_value (cache->base);
- return (*this_cache);
+ return (struct score_frame_cache *) (*this_cache);
}
static void
score_prologue_this_id (struct frame_info *this_frame, void **this_cache,
- struct frame_id *this_id)
+ struct frame_id *this_id)
{
struct score_frame_cache *info = score_make_prologue_cache (this_frame,
- this_cache);
+ this_cache);
(*this_id) = frame_id_build (info->base, get_frame_func (this_frame));
}
static struct value *
score_prologue_prev_register (struct frame_info *this_frame,
- void **this_cache, int regnum)
+ void **this_cache, int regnum)
{
struct score_frame_cache *info = score_make_prologue_cache (this_frame,
- this_cache);
+ this_cache);
return trad_frame_get_prev_register (this_frame, info->saved_regs, regnum);
}
static CORE_ADDR
score_prologue_frame_base_address (struct frame_info *this_frame,
- void **this_cache)
+ void **this_cache)
{
struct score_frame_cache *info =
score_make_prologue_cache (this_frame, this_cache);
return &score_prologue_frame_base;
}
-/* Core file support (dirty hack)
-
- The core file MUST be generated by GNU/Linux on S+core. */
+/* Core file support. */
+
+static const struct regcache_map_entry score7_linux_gregmap[] =
+ {
+ /* FIXME: According to the current Linux kernel, r0 is preceded by
+ 9 rather than 7 words. */
+ { 7, REGCACHE_MAP_SKIP, 4 },
+ { 32, 0, 4 }, /* r0 ... r31 */
+ { 1, 55, 4 }, /* CEL */
+ { 1, 54, 4 }, /* CEH */
+ { 1, 53, 4 }, /* sr0, i.e. cnt or COUNTER */
+ { 1, 52, 4 }, /* sr1, i.e. lcr or LDCR */
+ { 1, 51, 4 }, /* sr2, i.e. scr or STCR */
+ { 1, 49, 4 }, /* PC (same slot as EPC) */
+ { 1, 38, 4 }, /* EMA */
+ { 1, 32, 4 }, /* PSR */
+ { 1, 34, 4 }, /* ECR */
+ { 1, 33, 4 }, /* COND */
+ { 0 }
+ };
+
+#define SCORE7_LINUX_EPC_OFFSET (44 * 4)
+#define SCORE7_LINUX_SIZEOF_GREGSET (49 * 4)
static void
score7_linux_supply_gregset(const struct regset *regset,
- struct regcache *regcache,
- int regnum, const void *gregs_buf, size_t len)
+ struct regcache *regcache,
+ int regnum, const void *buf,
+ size_t size)
{
- int regno;
- elf_gregset_t *gregs;
-
- gdb_assert (regset != NULL);
- gdb_assert ((regcache != NULL) && (gregs_buf != NULL));
-
- gregs = (elf_gregset_t *) gregs_buf;
-
- for (regno = 0; regno < 32; regno++)
- if (regnum == -1 || regnum == regno)
- regcache_raw_supply (regcache, regno, gregs->regs + regno);
+ regcache_supply_regset (regset, regcache, regnum, buf, size);
+
+ /* Supply the EPC from the same slot as the PC. Note that the
+ collect function will store the PC in that slot. */
+ if ((regnum == -1 || regnum == SCORE_EPC_REGNUM)
+ && size >= SCORE7_LINUX_EPC_OFFSET + 4)
+ regcache->raw_supply
+ (SCORE_EPC_REGNUM, (const gdb_byte *) buf + SCORE7_LINUX_EPC_OFFSET);
+}
+static const struct regset score7_linux_gregset =
{
- struct sreg {
- int regnum;
- void *buf;
- } sregs [] = {
- { 55, &(gregs->cel) }, /* CEL */
- { 54, &(gregs->ceh) }, /* CEH */
- { 53, &(gregs->sr0) }, /* sr0, i.e. cnt or COUNTER */
- { 52, &(gregs->sr1) }, /* sr1, i.e. lcr or LDCR */
- { 51, &(gregs->sr1) }, /* sr2, i.e. scr or STCR */
-
- /* Exception occured at this address, exactly the PC we want */
- { 49, &(gregs->cp0_epc) }, /* PC */
-
- { 38, &(gregs->cp0_ema) }, /* EMA */
- { 37, &(gregs->cp0_epc) }, /* EPC */
- { 34, &(gregs->cp0_ecr) }, /* ECR */
- { 33, &(gregs->cp0_condition) }, /* COND */
- { 32, &(gregs->cp0_psr) }, /* PSR */
- };
-
- for (regno = 0; regno < sizeof(sregs)/sizeof(sregs[0]); regno++)
- if (regnum == -1 || regnum == sregs[regno].regnum)
- regcache_raw_supply (regcache,
- sregs[regno].regnum, sregs[regno].buf);
- }
-}
+ score7_linux_gregmap,
+ score7_linux_supply_gregset,
+ regcache_collect_regset
+ };
-/* Return the appropriate register set from the core section identified
- by SECT_NAME and SECT_SIZE. */
+/* Iterate over core file register note sections. */
-static const struct regset *
-score7_linux_regset_from_core_section(struct gdbarch *gdbarch,
- const char *sect_name, size_t sect_size)
+static void
+score7_linux_iterate_over_regset_sections (struct gdbarch *gdbarch,
+ iterate_over_regset_sections_cb *cb,
+ void *cb_data,
+ const struct regcache *regcache)
{
- struct gdbarch_tdep *tdep;
-
- gdb_assert (gdbarch != NULL);
- gdb_assert (sect_name != NULL);
-
- tdep = gdbarch_tdep (gdbarch);
-
- if (strcmp(sect_name, ".reg") == 0 && sect_size == sizeof(elf_gregset_t))
- {
- if (tdep->gregset == NULL)
- tdep->gregset = regset_alloc (gdbarch,
- score7_linux_supply_gregset, NULL);
- return tdep->gregset;
- }
-
- return NULL;
+ cb (".reg", SCORE7_LINUX_SIZEOF_GREGSET, SCORE7_LINUX_SIZEOF_GREGSET,
+ &score7_linux_gregset, NULL, cb_data);
}
static struct gdbarch *
score_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
{
struct gdbarch *gdbarch;
- struct gdbarch_tdep *tdep;
target_mach = info.bfd_arch_info->mach;
arches = gdbarch_list_lookup_by_info (arches, &info);
{
return (arches->gdbarch);
}
- tdep = xcalloc(1, sizeof(struct gdbarch_tdep));
- gdbarch = gdbarch_alloc (&info, tdep);
+ gdbarch = gdbarch_alloc (&info, NULL);
set_gdbarch_short_bit (gdbarch, 16);
set_gdbarch_int_bit (gdbarch, 32);
set_gdbarch_register_type (gdbarch, score_register_type);
set_gdbarch_frame_align (gdbarch, score_frame_align);
set_gdbarch_inner_than (gdbarch, core_addr_lessthan);
- set_gdbarch_unwind_sp (gdbarch, score_unwind_sp);
- set_gdbarch_unwind_pc (gdbarch, score_unwind_pc);
- set_gdbarch_print_insn (gdbarch, score_print_insn);
switch (target_mach)
{
case bfd_mach_score7:
- set_gdbarch_breakpoint_from_pc (gdbarch, score7_breakpoint_from_pc);
+ set_gdbarch_breakpoint_kind_from_pc (gdbarch,
+ score7_breakpoint_kind_from_pc);
+ set_gdbarch_sw_breakpoint_from_kind (gdbarch,
+ score7_sw_breakpoint_from_kind);
set_gdbarch_skip_prologue (gdbarch, score7_skip_prologue);
- set_gdbarch_in_function_epilogue_p (gdbarch,
- score7_in_function_epilogue_p);
+ set_gdbarch_stack_frame_destroyed_p (gdbarch,
+ score7_stack_frame_destroyed_p);
set_gdbarch_register_name (gdbarch, score7_register_name);
set_gdbarch_num_regs (gdbarch, SCORE7_NUM_REGS);
/* Core file support. */
- set_gdbarch_regset_from_core_section (gdbarch,
- score7_linux_regset_from_core_section);
+ set_gdbarch_iterate_over_regset_sections
+ (gdbarch, score7_linux_iterate_over_regset_sections);
break;
case bfd_mach_score3:
- set_gdbarch_breakpoint_from_pc (gdbarch, score3_breakpoint_from_pc);
+ set_gdbarch_breakpoint_kind_from_pc (gdbarch,
+ score3_breakpoint_kind_from_pc);
+ set_gdbarch_sw_breakpoint_from_kind (gdbarch,
+ score3_sw_breakpoint_from_kind);
set_gdbarch_skip_prologue (gdbarch, score3_skip_prologue);
- set_gdbarch_in_function_epilogue_p (gdbarch,
- score3_in_function_epilogue_p);
+ set_gdbarch_stack_frame_destroyed_p (gdbarch,
+ score3_stack_frame_destroyed_p);
set_gdbarch_register_name (gdbarch, score3_register_name);
set_gdbarch_num_regs (gdbarch, SCORE3_NUM_REGS);
break;
/* Dummy frame hooks. */
set_gdbarch_return_value (gdbarch, score_return_value);
set_gdbarch_call_dummy_location (gdbarch, AT_ENTRY_POINT);
- set_gdbarch_dummy_id (gdbarch, score_dummy_id);
set_gdbarch_push_dummy_call (gdbarch, score_push_dummy_call);
/* Normal frame hooks. */
return gdbarch;
}
-extern initialize_file_ftype _initialize_score_tdep;
-
+void _initialize_score_tdep ();
void
-_initialize_score_tdep (void)
+_initialize_score_tdep ()
{
gdbarch_register (bfd_arch_score, score_gdbarch_init, NULL);
}
projects / deliverable / binutils-gdb.git / blobdiff