#include "target.h"
#include "arch-utils.h"
#include "regcache.h"
+#include "regset.h"
#include "dis-asm.h"
#include "frame-unwind.h"
#include "frame-base.h"
#include "dwarf2-frame.h"
#include "score-tdep.h"
-#define G_FLD(_i,_ms,_ls) (((_i) << (31 - (_ms))) >> (31 - (_ms) + (_ls)))
-#define RM_PBITS(_raw) ((G_FLD(_raw, 31, 16) << 15) | G_FLD(_raw, 14, 0))
+#define G_FLD(_i,_ms,_ls) \
+ ((unsigned)((_i) << (31 - (_ms))) >> (31 - (_ms) + (_ls)))
typedef struct{
- unsigned int v;
- unsigned int raw;
- char is15;
+ unsigned long long v;
+ unsigned long long raw;
+ unsigned int len;
}inst_t;
struct score_frame_cache
struct trad_frame_saved_reg *saved_regs;
};
-#if 0
-/* If S+core GCC will generate these instructions in the prologue:
-
- lw rx, imm1
- addi rx, -imm2
- mv! r2, rx
-
- then .pdr section is used. */
-
-#define P_SIZE 8
-#define PI_SYM 0
-#define PI_R_MSK 1
-#define PI_R_OFF 2
-#define PI_R_LEF 4
-#define PI_F_OFF 5
-#define PI_F_REG 6
-#define PI_RAREG 7
-
-typedef struct frame_extra_info
-{
- CORE_ADDR p_frame;
- unsigned int pdr[P_SIZE];
-} extra_info_t;
-
-struct obj_priv
-{
- bfd_size_type size;
- char *contents;
-};
-
-static bfd *the_bfd;
-
-static int
-score_compare_pdr_entries (const void *a, const void *b)
-{
- CORE_ADDR lhs = bfd_get_32 (the_bfd, (bfd_byte *) a);
- CORE_ADDR rhs = bfd_get_32 (the_bfd, (bfd_byte *) b);
- if (lhs < rhs)
- return -1;
- else if (lhs == rhs)
- return 0;
- else
- return 1;
-}
-
-static void
-score_analyze_pdr_section (CORE_ADDR startaddr, CORE_ADDR pc,
- struct frame_info *this_frame,
- struct score_frame_cache *this_cache)
-{
- struct symbol *sym;
- struct obj_section *sec;
- extra_info_t *fci_ext;
- CORE_ADDR leaf_ra_stack_addr = -1;
-
- gdb_assert (startaddr <= pc);
- gdb_assert (this_cache != NULL);
-
- fci_ext = frame_obstack_zalloc (sizeof (extra_info_t));
- if ((sec = find_pc_section (pc)) == NULL)
- {
- error ("Error: Can't find section in file:%s, line:%d!",
- __FILE__, __LINE__);
- return;
- }
-
- /* Anylyze .pdr section and get coresponding fields. */
- {
- static struct obj_priv *priv = NULL;
-
- if (priv == NULL)
- {
- asection *bfdsec;
- priv = obstack_alloc (&sec->objfile->objfile_obstack,
- sizeof (struct obj_priv));
- if ((bfdsec = bfd_get_section_by_name (sec->objfile->obfd, ".pdr")))
- {
- priv->size = bfd_section_size (sec->objfile->obfd, bfdsec);
- priv->contents = obstack_alloc (&sec->objfile->objfile_obstack,
- priv->size);
- bfd_get_section_contents (sec->objfile->obfd, bfdsec,
- priv->contents, 0, priv->size);
- the_bfd = sec->objfile->obfd;
- qsort (priv->contents, priv->size / 32, 32,
- score_compare_pdr_entries);
- the_bfd = NULL;
- }
- else
- priv->size = 0;
- }
- if (priv->size != 0)
- {
- int low = 0, mid, high = priv->size / 32;
- char *ptr;
- do
- {
- CORE_ADDR pdr_pc;
- mid = (low + high) / 2;
- ptr = priv->contents + mid * 32;
- pdr_pc = bfd_get_signed_32 (sec->objfile->obfd, ptr);
- pdr_pc += ANOFFSET (sec->objfile->section_offsets,
- SECT_OFF_TEXT (sec->objfile));
- if (pdr_pc == startaddr)
- break;
- if (pdr_pc > startaddr)
- high = mid;
- else
- low = mid + 1;
- }
- while (low != high);
-
- if (low != high)
- {
- gdb_assert (bfd_get_32 (sec->objfile->obfd, ptr) == startaddr);
-#define EXT_PDR(_pi) bfd_get_32(sec->objfile->obfd, ptr+((_pi)<<2))
- fci_ext->pdr[PI_SYM] = EXT_PDR (PI_SYM);
- fci_ext->pdr[PI_R_MSK] = EXT_PDR (PI_R_MSK);
- fci_ext->pdr[PI_R_OFF] = EXT_PDR (PI_R_OFF);
- fci_ext->pdr[PI_R_LEF] = EXT_PDR (PI_R_LEF);
- fci_ext->pdr[PI_F_OFF] = EXT_PDR (PI_F_OFF);
- fci_ext->pdr[PI_F_REG] = EXT_PDR (PI_F_REG);
- fci_ext->pdr[PI_RAREG] = EXT_PDR (PI_RAREG);
-#undef EXT_PDR
- }
- }
- }
-}
-#endif
-
-#if 0
-/* Open these functions if build with simulator. */
+static int target_mach = bfd_mach_score7;
+#if WITH_SIM
int
score_target_can_use_watch (int type, int cnt, int othertype)
{
if (strcmp (current_target.to_shortname, "sim") == 0)
- {
return soc_gh_can_use_watch (type, cnt);
- }
- else
- {
- return (*current_target.to_can_use_hw_breakpoint) (type, cnt, othertype);
- }
+ return (*current_target.to_can_use_hw_breakpoint) (type, cnt, othertype);
}
int
score_stopped_by_watch (void)
{
if (strcmp (current_target.to_shortname, "sim") == 0)
- {
return soc_gh_stopped_by_watch ();
- }
- else
- {
- return (*current_target.to_stopped_by_watchpoint) ();
- }
+ return (*current_target.to_stopped_by_watchpoint) ();
}
int
score_target_insert_watchpoint (CORE_ADDR addr, int len, int type)
{
if (strcmp (current_target.to_shortname, "sim") == 0)
- {
return soc_gh_add_watch (addr, len, type);
- }
- else
- {
- return (*current_target.to_insert_watchpoint) (addr, len, type);
- }
+ return (*current_target.to_insert_watchpoint) (addr, len, type);
}
int
score_target_remove_watchpoint (CORE_ADDR addr, int len, int type)
{
if (strcmp (current_target.to_shortname, "sim") == 0)
- {
return soc_gh_del_watch (addr, len, type);
- }
- else
- {
- return (*current_target.to_remove_watchpoint) (addr, len, type);
- }
+ return (*current_target.to_remove_watchpoint) (addr, len, type);
}
int
-score_target_insert_hw_breakpoint (struct bp_target_info * bp_tgt)
+score_target_insert_hw_breakpoint (struct gdbarch *gdbarch,
+ struct bp_target_info * bp_tgt)
{
if (strcmp (current_target.to_shortname, "sim") == 0)
- {
return soc_gh_add_hardbp (bp_tgt->placed_address);
- }
- else
- {
- return (*current_target.to_insert_hw_breakpoint) (bp_tgt);
- }
+ return (*current_target.to_insert_hw_breakpoint) (gdbarch, bp_tgt);
}
int
-score_target_remove_hw_breakpoint (struct bp_target_info * bp_tgt)
+score_target_remove_hw_breakpoint (struct gdbarch *gdbarch,
+ struct bp_target_info * bp_tgt)
{
if (strcmp (current_target.to_shortname, "sim") == 0)
- {
return soc_gh_del_hardbp (bp_tgt->placed_address);
- }
- else
- {
- return (*current_target.to_remove_hw_breakpoint) (bp_tgt);
- }
+ return (*current_target.to_remove_hw_breakpoint) (gdbarch, bp_tgt);
}
#endif
static struct type *
score_register_type (struct gdbarch *gdbarch, int regnum)
{
- gdb_assert (regnum >= 0 && regnum < SCORE_NUM_REGS);
+ gdb_assert (regnum >= 0
+ && 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 CORE_ADDR
-score_unwind_sp (struct gdbarch *gdbarch, struct frame_info *next_frame)
+static const char *
+score7_register_name (struct gdbarch *gdbarch, int regnum)
{
- return frame_unwind_register_unsigned (next_frame, SCORE_SP_REGNUM);
+ const char *score_register_names[] = {
+ "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7",
+ "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15",
+ "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23",
+ "r24", "r25", "r26", "r27", "r28", "r29", "r30", "r31",
+
+ "PSR", "COND", "ECR", "EXCPVEC", "CCR",
+ "EPC", "EMA", "TLBLOCK", "TLBPT", "PEADDR",
+ "TLBRPT", "PEVN", "PECTX", "LIMPFN", "LDMPFN",
+ "PREV", "DREG", "PC", "DSAVE", "COUNTER",
+ "LDCR", "STCR", "CEH", "CEL",
+ };
+
+ gdb_assert (regnum >= 0 && regnum < SCORE7_NUM_REGS);
+ return score_register_names[regnum];
}
static const char *
-score_register_name (struct gdbarch *gdbarch, int regnum)
+score3_register_name (struct gdbarch *gdbarch, int regnum)
{
const char *score_register_names[] = {
"r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7",
"r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23",
"r24", "r25", "r26", "r27", "r28", "r29", "r30", "r31",
- "PSR", "COND", "ECR", "EXCPVEC",
- "CCR", "EPC", "EMA", "TLBLOCK",
- "TLBPT", "PEADDR", "TLBRPT", "PEVN",
- "PECTX", "LIMPFN", "LDMPFN", "PREV",
- "DREG", "PC", "DSAVE", "COUNTER",
- "LDCR", "STCR", "CEH", "CEL",
+ "PSR", "COND", "ECR", "EXCPVEC", "CCR",
+ "EPC", "EMA", "PREV", "DREG", "DSAVE",
+ "COUNTER", "LDCR", "STCR", "CEH", "CEL",
+ "", "", "PC",
};
- gdb_assert (regnum >= 0 && regnum < SCORE_NUM_REGS);
+ gdb_assert (regnum >= 0 && regnum < SCORE3_NUM_REGS);
return score_register_names[regnum];
}
+#if WITH_SIM
static int
score_register_sim_regno (struct gdbarch *gdbarch, int regnum)
{
- gdb_assert (regnum >= 0 && regnum < SCORE_NUM_REGS);
+ gdb_assert (regnum >= 0
+ && 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)
return print_insn_little_score (memaddr, info);
}
+static inst_t *
+score7_fetch_inst (struct gdbarch *gdbarch, CORE_ADDR addr, char *memblock)
+{
+ enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
+ static inst_t inst = { 0, 0, 0 };
+ char buf[SCORE_INSTLEN] = { 0 };
+ int big;
+ int ret;
+
+ if (target_has_execution && memblock != NULL)
+ {
+ /* Fetch instruction from local MEMBLOCK. */
+ memcpy (buf, memblock, SCORE_INSTLEN);
+ }
+ else
+ {
+ /* 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;
+ }
+ }
+
+ inst.raw = extract_unsigned_integer (buf, SCORE_INSTLEN, byte_order);
+ inst.len = (inst.raw & 0x80008000) ? 4 : 2;
+ inst.v = ((inst.raw >> 16 & 0x7FFF) << 15) | (inst.raw & 0x7FFF);
+ big = (byte_order == BFD_ENDIAN_BIG);
+ if (inst.len == 2)
+ {
+ if (big ^ ((addr & 0x2) == 2))
+ inst.v = G_FLD (inst.v, 29, 15);
+ else
+ inst.v = G_FLD (inst.v, 14, 0);
+ }
+ return &inst;
+}
+
+static inst_t *
+score3_adjust_pc_and_fetch_inst (CORE_ADDR *pcptr, int *lenptr,
+ enum bfd_endian byte_order)
+{
+ static inst_t inst = { 0, 0, 0 };
+
+ struct breakplace
+ {
+ int break_offset;
+ int inst_len;
+ };
+ /* raw table 1 (column 2, 3, 4)
+ * 0 1 0 * # 2
+ * 0 1 1 0 # 3
+ 0 1 1 0 * # 6
+ table 2 (column 1, 2, 3)
+ * 0 0 * * # 0, 4
+ 0 1 0 * * # 2
+ 1 1 0 * * # 6
+ */
+
+ static const struct breakplace bk_table[16] =
+ {
+ /* table 1 */
+ {0, 0},
+ {0, 0},
+ {0, 4},
+ {0, 6},
+ {0, 0},
+ {0, 0},
+ {-2, 6},
+ {0, 0},
+ /* table 2 */
+ {0, 2},
+ {0, 0},
+ {-2, 4},
+ {0, 0},
+ {0, 2},
+ {0, 0},
+ {-4, 6},
+ {0, 0}
+ };
+
+#define EXTRACT_LEN 2
+ CORE_ADDR adjust_pc = *pcptr & ~0x1;
+ int inst_len;
+ gdb_byte buf[5][EXTRACT_LEN] =
+ {
+ {'\0', '\0'},
+ {'\0', '\0'},
+ {'\0', '\0'},
+ {'\0', '\0'},
+ {'\0', '\0'}
+ };
+ int ret;
+ unsigned int raw;
+ unsigned int cbits = 0;
+ int bk_index;
+ int i, count;
+
+ inst.v = 0;
+ inst.raw = 0;
+ inst.len = 0;
+
+ adjust_pc -= 4;
+ for (i = 0; i < 5; i++)
+ {
+ ret = target_read_memory (adjust_pc + 2 * i, buf[i], EXTRACT_LEN);
+ if (ret != 0)
+ {
+ buf[i][0] = '\0';
+ buf[i][1] = '\0';
+ if (i == 2)
+ 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);
+ }
+ adjust_pc += 4;
+
+ if (cbits & 0x4)
+ {
+ /* table 1 */
+ cbits = (cbits >> 1) & 0x7;
+ bk_index = cbits;
+ }
+ else
+ {
+ /* table 2 */
+ cbits = (cbits >> 2) & 0x7;
+ bk_index = cbits + 8;
+ }
+
+ gdb_assert (!((bk_table[bk_index].break_offset == 0)
+ && (bk_table[bk_index].inst_len == 0)));
+
+ inst.len = bk_table[bk_index].inst_len;
+
+ i = (bk_table[bk_index].break_offset + 4) / 2;
+ count = inst.len / 2;
+ for (; count > 0; i++, count--)
+ {
+ inst.raw = (inst.raw << 16)
+ | extract_unsigned_integer (buf[i], EXTRACT_LEN, byte_order);
+ }
+
+ switch (inst.len)
+ {
+ case 2:
+ inst.v = inst.raw & 0x7FFF;
+ break;
+ case 4:
+ inst.v = ((inst.raw >> 16 & 0x7FFF) << 15) | (inst.raw & 0x7FFF);
+ break;
+ case 6:
+ inst.v = ((inst.raw >> 32 & 0x7FFF) << 30)
+ | ((inst.raw >> 16 & 0x7FFF) << 15) | (inst.raw & 0x7FFF);
+ break;
+ }
+
+ if (pcptr)
+ *pcptr = adjust_pc + bk_table[bk_index].break_offset;
+ if (lenptr)
+ *lenptr = bk_table[bk_index].inst_len;
+
+#undef EXTRACT_LEN
+
+ return &inst;
+}
+
static const gdb_byte *
-score_breakpoint_from_pc (struct gdbarch *gdbarch, CORE_ADDR *pcptr,
- int *lenptr)
+score7_breakpoint_from_pc (struct gdbarch *gdbarch, CORE_ADDR *pcptr,
+ int *lenptr)
{
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
gdb_byte buf[SCORE_INSTLEN] = { 0 };
}
}
+static const gdb_byte *
+score3_breakpoint_from_pc (struct gdbarch *gdbarch, CORE_ADDR *pcptr,
+ int *lenptr)
+{
+ enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
+ CORE_ADDR adjust_pc = *pcptr;
+ int len;
+ static gdb_byte score_break_insns[6][6] = {
+ /* The following three instructions are big endian. */
+ { 0x00, 0x20 },
+ { 0x80, 0x00, 0x00, 0x06 },
+ { 0x80, 0x00, 0x80, 0x00, 0x00, 0x00 },
+ /* The following three instructions are little endian. */
+ { 0x20, 0x00 },
+ { 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);
+
+ index = ((byte_order == BFD_ENDIAN_BIG) ? 0 : 3) + (len / 2 - 1);
+ p = score_break_insns[index];
+
+ *pcptr = adjust_pc;
+ *lenptr = len;
+
+ return p;
+}
+
+static CORE_ADDR
+score_adjust_breakpoint_address (struct gdbarch *gdbarch, CORE_ADDR bpaddr)
+{
+ CORE_ADDR adjust_pc = bpaddr;
+
+ if (target_mach == bfd_mach_score3)
+ score3_adjust_pc_and_fetch_inst (&adjust_pc, NULL,
+ gdbarch_byte_order (gdbarch));
+ else
+ adjust_pc = align_down (adjust_pc, 2);
+
+ return adjust_pc;
+}
+
static CORE_ADDR
score_frame_align (struct gdbarch *gdbarch, CORE_ADDR addr)
{
const gdb_byte *writebuf, int buf_offset)
{
int reg_offset = 0;
- gdb_assert (regnum >= 0 && regnum < SCORE_NUM_REGS);
+ gdb_assert (regnum >= 0
+ && regnum < ((target_mach == bfd_mach_score7) ? SCORE7_NUM_REGS : SCORE3_NUM_REGS));
switch (endian)
{
static enum return_value_convention
score_return_value (struct gdbarch *gdbarch, struct type *func_type,
- struct type *type, struct regcache *regcache,
+ struct type *type, struct regcache *regcache,
gdb_byte * readbuf, const gdb_byte * writebuf)
{
if (TYPE_CODE (type) == TYPE_CODE_STRUCT
if (offset + xfer > TYPE_LENGTH (type))
xfer = TYPE_LENGTH (type) - offset;
score_xfer_register (regcache, regnum, xfer,
- gdbarch_byte_order (gdbarch),
+ gdbarch_byte_order(gdbarch),
readbuf, writebuf, offset);
}
return RETURN_VALUE_REGISTER_CONVENTION;
Where X is a hole. */
- if (gdbarch_byte_order (gdbarch) == BFD_ENDIAN_BIG
+ if (gdbarch_byte_order(gdbarch) == BFD_ENDIAN_BIG
&& (typecode == TYPE_CODE_STRUCT
|| typecode == TYPE_CODE_UNION)
&& argreg > SCORE_LAST_ARG_REGNUM
{
int partial_len = arglen < SCORE_REGSIZE ? arglen : SCORE_REGSIZE;
ULONGEST regval = extract_unsigned_integer (val, partial_len,
- byte_order);
+ byte_order);
/* The last part of a arg should shift left when
gdbarch_byte_order is BFD_ENDIAN_BIG. */
- if (gdbarch_byte_order (gdbarch) == BFD_ENDIAN_BIG
+ if (byte_order == BFD_ENDIAN_BIG
&& arg_last_part_p == 1
&& (typecode == TYPE_CODE_STRUCT
|| typecode == TYPE_CODE_UNION))
return sp;
}
-static char *
-score_malloc_and_get_memblock (CORE_ADDR addr, CORE_ADDR size)
-{
- int ret;
- char *memblock = NULL;
-
- if (size < 0)
- {
- error ("Error: malloc size < 0 in file:%s, line:%d!",
- __FILE__, __LINE__);
- return NULL;
- }
- else if (size == 0)
- return NULL;
-
- memblock = (char *) 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__);
- return NULL;
- }
- return memblock;
-}
-
-static void
-score_free_memblock (char *memblock)
-{
- xfree (memblock);
-}
-
-static void
-score_adjust_memblock_ptr (char **memblock, CORE_ADDR prev_pc,
- CORE_ADDR cur_pc)
-{
- if (prev_pc == -1)
- {
- /* First time call this function, do nothing. */
- }
- else if (cur_pc - prev_pc == 2 && (cur_pc & 0x3) == 0)
- {
- /* First 16-bit instruction, then 32-bit instruction. */
- *memblock += SCORE_INSTLEN;
- }
- else if (cur_pc - prev_pc == 4)
- {
- /* Is 32-bit instruction, increase MEMBLOCK by 4. */
- *memblock += SCORE_INSTLEN;
- }
-}
-
-static inst_t *
-score_fetch_inst (struct gdbarch *gdbarch, CORE_ADDR addr, char *memblock)
-{
- enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
- static inst_t inst = { 0, 0 };
- char buf[SCORE_INSTLEN] = { 0 };
- int big;
- int ret;
-
- if (target_has_execution && memblock != NULL)
- {
- /* Fetch instruction from local MEMBLOCK. */
- memcpy (buf, memblock, SCORE_INSTLEN);
- }
- else
- {
- /* 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;
- }
- }
-
- inst.raw = extract_unsigned_integer (buf, SCORE_INSTLEN, byte_order);
- inst.is15 = !(inst.raw & 0x80008000);
- inst.v = RM_PBITS (inst.raw);
- big = (byte_order == BFD_ENDIAN_BIG);
- if (inst.is15)
- {
- if (big ^ ((addr & 0x2) == 2))
- inst.v = G_FLD (inst.v, 29, 15);
- else
- inst.v = G_FLD (inst.v, 14, 0);
- }
- return &inst;
-}
-
static CORE_ADDR
-score_skip_prologue (struct gdbarch *gdbarch, CORE_ADDR pc)
+score7_skip_prologue (struct gdbarch *gdbarch, CORE_ADDR pc)
{
CORE_ADDR cpc = pc;
int iscan = 32, stack_sub = 0;
while (iscan-- > 0)
{
- inst_t *inst = score_fetch_inst (gdbarch, cpc, NULL);
+ inst_t *inst = score7_fetch_inst (gdbarch, cpc, NULL);
if (!inst)
break;
- if (!inst->is15 && !stack_sub
+ if ((inst->len == 4) && !stack_sub
&& (G_FLD (inst->v, 29, 25) == 0x1
&& G_FLD (inst->v, 24, 20) == 0x0))
{
/* addi r0, offset */
- pc = stack_sub = cpc + SCORE_INSTLEN;
+ stack_sub = cpc + SCORE_INSTLEN;
+ pc = cpc + SCORE_INSTLEN;
}
- else if (!inst->is15
- && inst->v == RM_PBITS (0x8040bc56))
+ 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;
}
- else if (inst->is15
- && inst->v == RM_PBITS (0x0203))
+ 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;
}
- else if (inst->is15
+ 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;
- else if (!inst->is15
+ 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;
- cpc += inst->is15 ? SCORE16_INSTLEN : SCORE_INSTLEN;
+ cpc += (inst->len == 2) ? SCORE16_INSTLEN : SCORE_INSTLEN;
}
return pc;
}
-static int
-score_in_function_epilogue_p (struct gdbarch *gdbarch, CORE_ADDR cur_pc)
+static CORE_ADDR
+score3_skip_prologue (struct gdbarch *gdbarch, CORE_ADDR pc)
{
- inst_t *inst = score_fetch_inst (gdbarch, cur_pc, NULL);
+ CORE_ADDR cpc = pc;
+ int iscan = 32, stack_sub = 0;
+ while (iscan-- > 0)
+ {
+ inst_t *inst
+ = score3_adjust_pc_and_fetch_inst (&cpc, NULL, gdbarch_byte_order (gdbarch));
- 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)
- return 1; /* pop! */
+ if (!inst)
+ 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, 24, 20) == 0x0))
+ {
+ /* 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, 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;
+ }
+ else if ((inst->len == 2)
+ && (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;
+ }
+ 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;
+ else if (inst->len == 4
+ && ((G_FLD (inst->v, 29, 25) == 2) /* j32 form */
+ || (G_FLD (inst->v, 29, 25) == 4))) /* b32 form */
+ break;
+
+ cpc += inst->len;
+ }
+ return pc;
+}
+
+static int
+score7_in_function_epilogue_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)
+ return 1; /* pop! */
else if (G_FLD (inst->v, 14, 12) == 0x0
&& G_FLD (inst->v, 7, 0) == 0x34)
return 1; /* br! r3 */
return 0;
}
+static int
+score3_in_function_epilogue_p (struct gdbarch *gdbarch, CORE_ADDR cur_pc)
+{
+ CORE_ADDR pc = cur_pc;
+ inst_t *inst
+ = score3_adjust_pc_and_fetch_inst (&pc, NULL, gdbarch_byte_order (gdbarch));
+
+ if (inst->len == 2
+ && (G_FLD (inst->v, 14, 10) == 0x10)
+ && (G_FLD (inst->v, 9, 5) == 0x0)
+ && (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, 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))
+ 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))
+ 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))
+ 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))
+ return 1; /* br r3 */
+ else
+ return 0;
+}
+
+static char *
+score7_malloc_and_get_memblock (CORE_ADDR addr, CORE_ADDR size)
+{
+ int ret;
+ char *memblock = NULL;
+
+ if (size < 0)
+ {
+ error ("Error: malloc size < 0 in file:%s, line:%d!",
+ __FILE__, __LINE__);
+ return NULL;
+ }
+ else if (size == 0)
+ return NULL;
+
+ memblock = (char *) 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__);
+ return NULL;
+ }
+ return memblock;
+}
+
static void
-score_analyze_prologue (CORE_ADDR startaddr, CORE_ADDR pc,
+score7_free_memblock (char *memblock)
+{
+ xfree (memblock);
+}
+
+static void
+score7_adjust_memblock_ptr (char **memblock, CORE_ADDR prev_pc,
+ CORE_ADDR cur_pc)
+{
+ if (prev_pc == -1)
+ {
+ /* First time call this function, do nothing. */
+ }
+ else if (cur_pc - prev_pc == 2 && (cur_pc & 0x3) == 0)
+ {
+ /* First 16-bit instruction, then 32-bit instruction. */
+ *memblock += SCORE_INSTLEN;
+ }
+ else if (cur_pc - prev_pc == 4)
+ {
+ /* Is 32-bit instruction, increase MEMBLOCK by 4. */
+ *memblock += SCORE_INSTLEN;
+ }
+}
+
+static void
+score7_analyze_prologue (CORE_ADDR startaddr, CORE_ADDR pc,
struct frame_info *this_frame,
struct score_frame_cache *this_cache)
{
/* Allocate MEMBLOCK if PC - STARTADDR > 0. */
memblock_ptr = memblock =
- score_malloc_and_get_memblock (startaddr, pc - startaddr);
+ score7_malloc_and_get_memblock (startaddr, pc - startaddr);
sp = get_frame_register_unsigned (this_frame, SCORE_SP_REGNUM);
fp = get_frame_register_unsigned (this_frame, SCORE_FP_REGNUM);
{
/* Reading memory block from target succefully and got all
the instructions(from STARTADDR to PC) needed. */
- score_adjust_memblock_ptr (&memblock, prev_pc, cur_pc);
- inst = score_fetch_inst (gdbarch, cur_pc, memblock);
+ 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 = score_fetch_inst (gdbarch, cur_pc, NULL);
+ inst = score7_fetch_inst (gdbarch, cur_pc, NULL);
}
- if (inst->is15 == 1)
+ /* FIXME: make a full-power prologue analyzer */
+ if (inst->len == 2)
{
inst_len = SCORE16_INSTLEN;
{
inst_len = SCORE_INSTLEN;
- if (G_FLD (inst->v, 29, 15) == 0xc60
- && G_FLD (inst->v, 2, 0) == 0x4)
+ if (G_FLD(inst->v, 29, 25) == 0x3
+ && G_FLD(inst->v, 2, 0) == 0x4
+ && G_FLD(inst->v, 19, 15) == 0)
{
- /* sw r3, [r0, offset]+ */
- sp_offset += SCORE_INSTLEN;
- if (ra_offset_p == 0)
- {
- ra_offset = sp_offset;
- ra_offset_p = 1;
- }
+ /* 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;
+ }
+ }
}
- if (G_FLD (inst->v, 29, 15) == 0xc40
- && G_FLD (inst->v, 2, 0) == 0x4)
+ else if (G_FLD(inst->v, 29, 25) == 0x14
+ && G_FLD(inst->v, 19,15) == 0)
{
- /* sw r2, [r0, offset]+ */
- sp_offset += SCORE_INSTLEN;
- if (fp_offset_p == 0)
- {
- fp_offset = sp_offset;
- fp_offset_p = 1;
- }
+ /* 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)
{
unsigned int save_v = inst->v;
inst_t *inst2 =
- score_fetch_inst (gdbarch, cur_pc + SCORE_INSTLEN, NULL);
+ score7_fetch_inst (gdbarch, cur_pc + SCORE_INSTLEN, NULL);
if (inst2->v == 0x23)
{
/* mv! r0, r2 */
/* Don't forget to free MEMBLOCK if we allocated it. */
if (memblock_ptr != NULL)
- score_free_memblock (memblock_ptr);
+ score7_free_memblock (memblock_ptr);
+}
+
+static void
+score3_analyze_prologue (CORE_ADDR startaddr, CORE_ADDR pc,
+ struct frame_info *this_frame,
+ struct score_frame_cache *this_cache)
+{
+ CORE_ADDR sp;
+ CORE_ADDR fp;
+ CORE_ADDR cur_pc = startaddr;
+ enum bfd_endian byte_order = gdbarch_byte_order (get_frame_arch (this_frame));
+
+ int sp_offset = 0;
+ int ra_offset = 0;
+ int fp_offset = 0;
+ int ra_offset_p = 0;
+ 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)
+ {
+ inst_t *inst = NULL;
+
+ inst = score3_adjust_pc_and_fetch_inst (&cur_pc, &inst_len, byte_order);
+
+ /* 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 ((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)
+ && (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);
+ 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;
+ 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;
+ }
+ }
+ }
+ }
+ 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 (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;
+ 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;
+ }
+ }
+ }
+ }
+ }
+
+ /* 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;
+ }
+ else
+ {
+ this_cache->saved_regs[SCORE_PC_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;
+ }
+
+ /* Save SP and FP. */
+ this_cache->base = sp + sp_offset;
+ this_cache->fp = fp;
}
static struct score_frame_cache *
find_pc_partial_function (pc, NULL, &start_addr, NULL);
if (start_addr == 0)
return cache;
- score_analyze_prologue (start_addr, pc, this_frame, *this_cache);
+
+ if (target_mach == bfd_mach_score3)
+ score3_analyze_prologue (start_addr, pc, this_frame, *this_cache);
+ else
+ score7_analyze_prologue (start_addr, pc, this_frame, *this_cache);
}
/* Save SP. */
score_prologue_this_id,
score_prologue_prev_register,
NULL,
- default_frame_sniffer
+ default_frame_sniffer,
+ NULL
};
static CORE_ADDR
return &score_prologue_frame_base;
}
+/* Core file support (dirty hack)
+
+ The core file MUST be generated by GNU/Linux on S+core */
+
+static void
+score7_linux_supply_gregset(const struct regset *regset,
+ struct regcache *regcache,
+ int regnum, const void *gregs_buf, size_t len)
+{
+ 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);
+
+ {
+ 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);
+ }
+}
+
+/* Return the appropriate register set from the core section identified
+ by SECT_NAME and SECT_SIZE. */
+
+static const struct regset *
+score7_linux_regset_from_core_section(struct gdbarch *gdbarch,
+ const char *sect_name, size_t sect_size)
+{
+ 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;
+}
+
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);
if (arches != NULL)
{
return (arches->gdbarch);
}
- gdbarch = gdbarch_alloc (&info, 0);
+ tdep = xcalloc(1, sizeof(struct gdbarch_tdep));
+ gdbarch = gdbarch_alloc (&info, tdep);
set_gdbarch_short_bit (gdbarch, 16);
set_gdbarch_int_bit (gdbarch, 32);
set_gdbarch_float_bit (gdbarch, 32);
set_gdbarch_double_bit (gdbarch, 64);
set_gdbarch_long_double_bit (gdbarch, 64);
+#if WITH_SIM
set_gdbarch_register_sim_regno (gdbarch, score_register_sim_regno);
+#endif
set_gdbarch_pc_regnum (gdbarch, SCORE_PC_REGNUM);
set_gdbarch_sp_regnum (gdbarch, SCORE_SP_REGNUM);
- set_gdbarch_num_regs (gdbarch, SCORE_NUM_REGS);
- set_gdbarch_register_name (gdbarch, score_register_name);
- set_gdbarch_breakpoint_from_pc (gdbarch, score_breakpoint_from_pc);
+ set_gdbarch_adjust_breakpoint_address (gdbarch, score_adjust_breakpoint_address);
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_pc (gdbarch, score_unwind_pc);
set_gdbarch_unwind_sp (gdbarch, score_unwind_sp);
+ set_gdbarch_unwind_pc (gdbarch, score_unwind_pc);
set_gdbarch_print_insn (gdbarch, score_print_insn);
- set_gdbarch_skip_prologue (gdbarch, score_skip_prologue);
- set_gdbarch_in_function_epilogue_p (gdbarch, score_in_function_epilogue_p);
+
+ switch (target_mach)
+ {
+ case bfd_mach_score7:
+ set_gdbarch_breakpoint_from_pc (gdbarch, score7_breakpoint_from_pc);
+ set_gdbarch_skip_prologue (gdbarch, score7_skip_prologue);
+ set_gdbarch_in_function_epilogue_p (gdbarch, score7_in_function_epilogue_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);
+ break;
+
+ case bfd_mach_score3:
+ set_gdbarch_breakpoint_from_pc (gdbarch, score3_breakpoint_from_pc);
+ set_gdbarch_skip_prologue (gdbarch, score3_skip_prologue);
+ set_gdbarch_in_function_epilogue_p (gdbarch, score3_in_function_epilogue_p);
+ set_gdbarch_register_name (gdbarch, score3_register_name);
+ set_gdbarch_num_regs (gdbarch, SCORE3_NUM_REGS);
+ break;
+ }
/* Watchpoint hooks. */
set_gdbarch_have_nonsteppable_watchpoint (gdbarch, 1);
projects / external / binutils.git / commitdiff