aboutsummaryrefslogtreecommitdiff
path: root/gdb/tic6x-tdep.c
diff options
context:
space:
mode:
Diffstat (limited to 'gdb/tic6x-tdep.c')
-rw-r--r--gdb/tic6x-tdep.c214
1 files changed, 99 insertions, 115 deletions
diff --git a/gdb/tic6x-tdep.c b/gdb/tic6x-tdep.c
index 6c10394..e3d4de5 100644
--- a/gdb/tic6x-tdep.c
+++ b/gdb/tic6x-tdep.c
@@ -78,19 +78,17 @@ struct tic6x_unwind_cache
CORE_ADDR reg_saved[TIC6X_NUM_CORE_REGS];
};
-
/* Name of TI C6x core registers. */
-static const char *const tic6x_register_names[] =
-{
- "A0", "A1", "A2", "A3", /* 0 1 2 3 */
- "A4", "A5", "A6", "A7", /* 4 5 6 7 */
- "A8", "A9", "A10", "A11", /* 8 9 10 11 */
+static const char *const tic6x_register_names[] = {
+ "A0", "A1", "A2", "A3", /* 0 1 2 3 */
+ "A4", "A5", "A6", "A7", /* 4 5 6 7 */
+ "A8", "A9", "A10", "A11", /* 8 9 10 11 */
"A12", "A13", "A14", "A15", /* 12 13 14 15 */
- "B0", "B1", "B2", "B3", /* 16 17 18 19 */
- "B4", "B5", "B6", "B7", /* 20 21 22 23 */
- "B8", "B9", "B10", "B11", /* 24 25 26 27 */
+ "B0", "B1", "B2", "B3", /* 16 17 18 19 */
+ "B4", "B5", "B6", "B7", /* 20 21 22 23 */
+ "B8", "B9", "B10", "B11", /* 24 25 26 27 */
"B12", "B13", "B14", "B15", /* 28 29 30 31 */
- "CSR", "PC", /* 32 33 */
+ "CSR", "PC", /* 32 33 */
};
/* This array maps the arguments to the register number which passes argument
@@ -115,7 +113,6 @@ tic6x_register_name (struct gdbarch *gdbarch, int regno)
static struct type *
tic6x_register_type (struct gdbarch *gdbarch, int regno)
{
-
if (regno == TIC6X_PC_REGNUM)
return builtin_type (gdbarch)->builtin_func_ptr;
else
@@ -184,11 +181,11 @@ tic6x_analyze_prologue (struct gdbarch *gdbarch, const CORE_ADDR start_pc,
these three kinds of instructions. */
unsigned int ucst5 = (inst >> 13) & 0x1f;
- if ((inst & 0x1ffc) == 0x1dc0) /* SUBAW */
+ if ((inst & 0x1ffc) == 0x1dc0) /* SUBAW */
frame_base_offset_to_sp += ucst5 << 2;
- else if ((inst & 0x1ffc) == 0x1bc0) /* SUBAH */
+ else if ((inst & 0x1ffc) == 0x1bc0) /* SUBAH */
frame_base_offset_to_sp += ucst5 << 1;
- else if ((inst & 0x0ffc) == 0x9c0) /* SUB */
+ else if ((inst & 0x0ffc) == 0x9c0) /* SUB */
frame_base_offset_to_sp += ucst5;
else
gdb_assert_not_reached ("unexpected instruction");
@@ -196,11 +193,11 @@ tic6x_analyze_prologue (struct gdbarch *gdbarch, const CORE_ADDR start_pc,
return_pc = pc + 4;
}
}
- else if ((inst & 0x174) == 0x74) /* stw SRC, *+b15(uconst) */
+ else if ((inst & 0x174) == 0x74) /* stw SRC, *+b15(uconst) */
{
/* The y bit determines which file base is read from. */
- base_reg = tic6x_register_number ((inst >> 18) & 0x1f,
- (inst >> 7) & 1, 0);
+ base_reg
+ = tic6x_register_number ((inst >> 18) & 0x1f, (inst >> 7) & 1, 0);
if (base_reg == TIC6X_SP_REGNUM)
{
@@ -233,7 +230,6 @@ tic6x_analyze_prologue (struct gdbarch *gdbarch, const CORE_ADDR start_pc,
break;
}
-
pc += 4;
}
/* Step 2: Skip insn on setting up dsbt if it is. Usually, it looks like,
@@ -246,9 +242,9 @@ tic6x_analyze_prologue (struct gdbarch *gdbarch, const CORE_ADDR start_pc,
used. */
base_reg = tic6x_register_number ((inst >> 18) & 0x1f, (inst >> 7) & 1, 0);
- if ((inst & 0x164) == 0x64 /* ldw */
- && dst_reg == TIC6X_DP_REGNUM /* dst is B14 */
- && base_reg == TIC6X_DP_REGNUM) /* baseR is B14 */
+ if ((inst & 0x164) == 0x64 /* ldw */
+ && dst_reg == TIC6X_DP_REGNUM /* dst is B14 */
+ && base_reg == TIC6X_DP_REGNUM) /* baseR is B14 */
{
return_pc = pc + 4;
}
@@ -262,8 +258,8 @@ tic6x_analyze_prologue (struct gdbarch *gdbarch, const CORE_ADDR start_pc,
/* If the FP now holds an offset from the CFA then this is a frame
which uses the frame pointer. */
- cache->cfa = get_frame_register_unsigned (this_frame,
- TIC6X_FP_REGNUM);
+ cache->cfa
+ = get_frame_register_unsigned (this_frame, TIC6X_FP_REGNUM);
}
else
{
@@ -369,13 +365,13 @@ tic6x_unwind_pc (struct gdbarch *gdbarch, frame_info_ptr next_frame)
{
gdb_byte buf[8];
- frame_unwind_register (next_frame, TIC6X_PC_REGNUM, buf);
+ frame_unwind_register (next_frame, TIC6X_PC_REGNUM, buf);
return extract_typed_address (buf, builtin_type (gdbarch)->builtin_func_ptr);
}
/* Frame base handling. */
-static struct tic6x_unwind_cache*
+static struct tic6x_unwind_cache *
tic6x_frame_unwind_cache (frame_info_ptr this_frame,
void **this_prologue_cache)
{
@@ -407,8 +403,8 @@ static void
tic6x_frame_this_id (frame_info_ptr this_frame, void **this_cache,
struct frame_id *this_id)
{
- struct tic6x_unwind_cache *cache =
- tic6x_frame_unwind_cache (this_frame, this_cache);
+ struct tic6x_unwind_cache *cache
+ = tic6x_frame_unwind_cache (this_frame, this_cache);
/* This marks the outermost frame. */
if (cache->base == 0)
@@ -421,8 +417,8 @@ static struct value *
tic6x_frame_prev_register (frame_info_ptr this_frame, void **this_cache,
int regnum)
{
- struct tic6x_unwind_cache *cache =
- tic6x_frame_unwind_cache (this_frame, this_cache);
+ struct tic6x_unwind_cache *cache
+ = tic6x_frame_unwind_cache (this_frame, this_cache);
gdb_assert (regnum >= 0);
@@ -452,25 +448,18 @@ tic6x_frame_base_address (frame_info_ptr this_frame, void **this_cache)
return info->base;
}
-static const struct frame_unwind tic6x_frame_unwind =
-{
- "tic6x prologue",
- NORMAL_FRAME,
- default_frame_unwind_stop_reason,
- tic6x_frame_this_id,
- tic6x_frame_prev_register,
- NULL,
- default_frame_sniffer
-};
-
-static const struct frame_base tic6x_frame_base =
-{
- &tic6x_frame_unwind,
- tic6x_frame_base_address,
- tic6x_frame_base_address,
- tic6x_frame_base_address
-};
+static const struct frame_unwind tic6x_frame_unwind
+ = { "tic6x prologue",
+ NORMAL_FRAME,
+ default_frame_unwind_stop_reason,
+ tic6x_frame_this_id,
+ tic6x_frame_prev_register,
+ NULL,
+ default_frame_sniffer };
+static const struct frame_base tic6x_frame_base
+ = { &tic6x_frame_unwind, tic6x_frame_base_address, tic6x_frame_base_address,
+ tic6x_frame_base_address };
static struct tic6x_unwind_cache *
tic6x_make_stub_cache (frame_info_ptr this_frame)
@@ -515,16 +504,14 @@ tic6x_stub_unwind_sniffer (const struct frame_unwind *self,
return 0;
}
-static const struct frame_unwind tic6x_stub_unwind =
-{
- "tic6x stub",
- NORMAL_FRAME,
- default_frame_unwind_stop_reason,
- tic6x_stub_this_id,
- tic6x_frame_prev_register,
- NULL,
- tic6x_stub_unwind_sniffer
-};
+static const struct frame_unwind tic6x_stub_unwind
+ = { "tic6x stub",
+ NORMAL_FRAME,
+ default_frame_unwind_stop_reason,
+ tic6x_stub_this_id,
+ tic6x_frame_prev_register,
+ NULL,
+ tic6x_stub_unwind_sniffer };
/* Return the instruction on address PC. */
@@ -615,9 +602,9 @@ tic6x_get_next_pc (struct regcache *regcache, CORE_ADDR pc)
{
/* B with register */
- register_number = tic6x_register_number ((inst >> 18) & 0x1f,
- INST_S_BIT (inst),
- INST_X_BIT (inst));
+ register_number
+ = tic6x_register_number ((inst >> 18) & 0x1f,
+ INST_S_BIT (inst), INST_X_BIT (inst));
pc = regcache_raw_get_unsigned (regcache, register_number);
break;
}
@@ -643,8 +630,8 @@ tic6x_get_next_pc (struct regcache *regcache, CORE_ADDR pc)
if ((inst & 0x0f830ffe) == 0x00800362)
{
/* BNOP with register */
- register_number = tic6x_register_number ((inst >> 18) & 0x1f,
- 1, INST_X_BIT (inst));
+ register_number = tic6x_register_number ((inst >> 18) & 0x1f, 1,
+ INST_X_BIT (inst));
pc = regcache_raw_get_unsigned (regcache, register_number);
break;
}
@@ -679,9 +666,10 @@ tic6x_get_next_pc (struct regcache *regcache, CORE_ADDR pc)
static std::vector<CORE_ADDR>
tic6x_software_single_step (struct regcache *regcache)
{
- CORE_ADDR next_pc = tic6x_get_next_pc (regcache, regcache_read_pc (regcache));
+ CORE_ADDR next_pc
+ = tic6x_get_next_pc (regcache, regcache_read_pc (regcache));
- return {next_pc};
+ return { next_pc };
}
/* This is the implementation of gdbarch method frame_align. */
@@ -793,11 +781,11 @@ tic6x_return_value (struct gdbarch *gdbarch, struct value *function,
return RETURN_VALUE_STRUCT_CONVENTION;
if (readbuf)
- tic6x_extract_return_value (type, regcache,
- gdbarch_byte_order (gdbarch), readbuf);
+ tic6x_extract_return_value (type, regcache, gdbarch_byte_order (gdbarch),
+ readbuf);
if (writebuf)
- tic6x_store_return_value (type, regcache,
- gdbarch_byte_order (gdbarch), writebuf);
+ tic6x_store_return_value (type, regcache, gdbarch_byte_order (gdbarch),
+ writebuf);
return RETURN_VALUE_REGISTER_CONVENTION;
}
@@ -845,8 +833,7 @@ tic6x_arg_type_alignment (struct type *type)
return 16;
}
else
- internal_error (_("unexpected length %d of type"),
- len);
+ internal_error (_ ("unexpected length %d of type"), len);
}
}
@@ -854,8 +841,8 @@ tic6x_arg_type_alignment (struct type *type)
static CORE_ADDR
tic6x_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
- struct regcache *regcache, CORE_ADDR bp_addr,
- int nargs, struct value **args, CORE_ADDR sp,
+ 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)
{
@@ -936,8 +923,8 @@ tic6x_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
so, we write the contents in VAL to the lsp of
register. */
if (len < 3 && byte_order == BFD_ENDIAN_BIG)
- regcache->cooked_write_part (arg_regs[argreg], 4 - len, len,
- val);
+ regcache->cooked_write_part (arg_regs[argreg], 4 - len,
+ len, val);
else
regcache->cooked_write (arg_regs[argreg], val);
}
@@ -945,8 +932,8 @@ tic6x_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
{
/* The argument is being passed by value in a single
register. */
- CORE_ADDR regval = extract_unsigned_integer (val, len,
- byte_order);
+ CORE_ADDR regval
+ = extract_unsigned_integer (val, len, byte_order);
regcache_cooked_write_unsigned (regcache, arg_regs[argreg],
regval);
@@ -981,8 +968,8 @@ tic6x_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
{
/* The argument is being passed by value in a pair of
registers. */
- ULONGEST regval = extract_unsigned_integer (val, len,
- byte_order);
+ ULONGEST regval
+ = extract_unsigned_integer (val, len, byte_order);
regcache_cooked_write_unsigned (regcache,
arg_regs[argreg],
@@ -1040,8 +1027,8 @@ tic6x_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
if (len <= 4)
; /* Default is 4-byte aligned. Nothing to be done. */
else if (len <= 8)
- stack_offset = align_up (stack_offset,
- tic6x_arg_type_alignment (arg_type));
+ stack_offset
+ = align_up (stack_offset, tic6x_arg_type_alignment (arg_type));
else if (len == 16)
{
/* _Complex double or _Complex long double */
@@ -1060,14 +1047,13 @@ tic6x_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
store_unsigned_integer ((gdb_byte *) val, 4, byte_order,
addr);
len = 4;
-
}
else
- internal_error (_("unexpected type %d of arg %d"),
- typecode, argnum);
+ internal_error (_ ("unexpected type %d of arg %d"), typecode,
+ argnum);
}
else
- internal_error (_("unexpected length %d of arg %d"), len, argnum);
+ internal_error (_ ("unexpected length %d of arg %d"), len, argnum);
addr = sp + stack_offset;
write_memory (addr, val, len);
@@ -1090,9 +1076,9 @@ tic6x_stack_frame_destroyed_p (struct gdbarch *gdbarch, CORE_ADDR pc)
/* Normally, the epilogue is composed by instruction `b .S2 b3'. */
if ((inst & 0x0f83effc) == 0x360)
{
- unsigned int src2 = tic6x_register_number ((inst >> 18) & 0x1f,
- INST_S_BIT (inst),
- INST_X_BIT (inst));
+ unsigned int src2
+ = tic6x_register_number ((inst >> 18) & 0x1f, INST_S_BIT (inst),
+ INST_X_BIT (inst));
if (src2 == TIC6X_RA_REGNUM)
return 1;
}
@@ -1154,15 +1140,17 @@ tic6x_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
tdesc_data = tdesc_data_alloc ();
valid_p = 1;
- for (i = 0; i < 32; i++) /* A0 - A15, B0 - B15 */
+ for (i = 0; i < 32; i++) /* A0 - A15, B0 - B15 */
valid_p &= tdesc_numbered_register (feature, tdesc_data.get (), i,
tic6x_register_names[i]);
/* CSR */
- valid_p &= tdesc_numbered_register (feature, tdesc_data.get (), i++,
- tic6x_register_names[TIC6X_CSR_REGNUM]);
- valid_p &= tdesc_numbered_register (feature, tdesc_data.get (), i++,
- tic6x_register_names[TIC6X_PC_REGNUM]);
+ valid_p
+ &= tdesc_numbered_register (feature, tdesc_data.get (), i++,
+ tic6x_register_names[TIC6X_CSR_REGNUM]);
+ valid_p
+ &= tdesc_numbered_register (feature, tdesc_data.get (), i++,
+ tic6x_register_names[TIC6X_PC_REGNUM]);
if (!valid_p)
return NULL;
@@ -1171,17 +1159,16 @@ tic6x_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
if (feature)
{
int j = 0;
- static const char *const gp[] =
- {
- "A16", "A17", "A18", "A19", "A20", "A21", "A22", "A23",
- "A24", "A25", "A26", "A27", "A28", "A29", "A30", "A31",
- "B16", "B17", "B18", "B19", "B20", "B21", "B22", "B23",
- "B24", "B25", "B26", "B27", "B28", "B29", "B30", "B31",
- };
+ static const char *const gp[] = {
+ "A16", "A17", "A18", "A19", "A20", "A21", "A22", "A23",
+ "A24", "A25", "A26", "A27", "A28", "A29", "A30", "A31",
+ "B16", "B17", "B18", "B19", "B20", "B21", "B22", "B23",
+ "B24", "B25", "B26", "B27", "B28", "B29", "B30", "B31",
+ };
has_gp = 1;
valid_p = 1;
- for (j = 0; j < 32; j++) /* A16 - A31, B16 - B31 */
+ for (j = 0; j < 32; j++) /* A16 - A31, B16 - B31 */
valid_p &= tdesc_numbered_register (feature, tdesc_data.get (),
i++, gp[j]);
@@ -1192,22 +1179,20 @@ tic6x_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
feature = tdesc_find_feature (tdesc, "org.gnu.gdb.tic6x.c6xp");
if (feature)
{
- valid_p &= tdesc_numbered_register (feature, tdesc_data.get (),
- i++, "TSR");
- valid_p &= tdesc_numbered_register (feature, tdesc_data.get (),
- i++, "ILC");
- valid_p &= tdesc_numbered_register (feature, tdesc_data.get (),
- i++, "RILC");
+ valid_p &= tdesc_numbered_register (feature, tdesc_data.get (), i++,
+ "TSR");
+ valid_p &= tdesc_numbered_register (feature, tdesc_data.get (), i++,
+ "ILC");
+ valid_p &= tdesc_numbered_register (feature, tdesc_data.get (), i++,
+ "RILC");
if (!valid_p)
return NULL;
}
-
}
/* Find a candidate among extant architectures. */
- for (arches = gdbarch_list_lookup_by_info (arches, &info);
- arches != NULL;
+ for (arches = gdbarch_list_lookup_by_info (arches, &info); arches != NULL;
arches = gdbarch_list_lookup_by_info (arches->next, &info))
{
tic6x_gdbarch_tdep *tdep
@@ -1250,10 +1235,8 @@ tic6x_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
set_gdbarch_inner_than (gdbarch, core_addr_lessthan);
set_gdbarch_skip_prologue (gdbarch, tic6x_skip_prologue);
- set_gdbarch_breakpoint_kind_from_pc (gdbarch,
- tic6x_breakpoint_kind_from_pc);
- set_gdbarch_sw_breakpoint_from_kind (gdbarch,
- tic6x_sw_breakpoint_from_kind);
+ set_gdbarch_breakpoint_kind_from_pc (gdbarch, tic6x_breakpoint_kind_from_pc);
+ set_gdbarch_sw_breakpoint_from_kind (gdbarch, tic6x_sw_breakpoint_from_kind);
set_gdbarch_unwind_pc (gdbarch, tic6x_unwind_pc);
@@ -1281,8 +1264,8 @@ tic6x_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
set_gdbarch_stack_frame_destroyed_p (gdbarch, tic6x_stack_frame_destroyed_p);
- set_gdbarch_return_in_first_hidden_param_p (gdbarch,
- tic6x_return_in_first_hidden_param_p);
+ set_gdbarch_return_in_first_hidden_param_p (
+ gdbarch, tic6x_return_in_first_hidden_param_p);
/* Hook in ABI-specific overrides, if they have been registered. */
gdbarch_init_osabi (info, gdbarch);
@@ -1294,6 +1277,7 @@ tic6x_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
}
void _initialize_tic6x_tdep ();
+
void
_initialize_tic6x_tdep ()
{
generated by cgit v1.1 at 2024-08-05 01:45:04 +0000