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Diffstat (limited to 'gdb/h8300-tdep.c')
-rw-r--r--gdb/h8300-tdep.c99
1 files changed, 58 insertions, 41 deletions
diff --git a/gdb/h8300-tdep.c b/gdb/h8300-tdep.c
index f12cb1b..93f0a65 100644
--- a/gdb/h8300-tdep.c
+++ b/gdb/h8300-tdep.c
@@ -178,9 +178,10 @@ h8300_init_frame_cache (struct gdbarch *gdbarch,
is used, it could be a byte, word or long move to registers r3-r5. */
static int
-h8300_is_argument_spill (CORE_ADDR pc)
+h8300_is_argument_spill (struct gdbarch *gdbarch, CORE_ADDR pc)
{
- int w = read_memory_unsigned_integer (pc, 2);
+ enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
+ int w = read_memory_unsigned_integer (pc, 2, byte_order);
if ((IS_MOVB_RnRm (w) || IS_MOVW_RnRm (w) || IS_MOVL_RnRm (w))
&& (w & 0x70) <= 0x20 /* Rs is R0, R1 or R2 */
@@ -190,14 +191,16 @@ h8300_is_argument_spill (CORE_ADDR pc)
if (IS_MOVB_Rn16_SP (w)
&& 8 <= (w & 0xf) && (w & 0xf) <= 10) /* Rs is R0L, R1L, or R2L */
{
- if (read_memory_integer (pc + 2, 2) < 0) /* ... and d:16 is negative. */
+ /* ... and d:16 is negative. */
+ if (read_memory_integer (pc + 2, 2, byte_order) < 0)
return 4;
}
else if (IS_MOVB_EXT (w))
{
- if (IS_MOVB_Rn24_SP (read_memory_unsigned_integer (pc + 2, 2)))
+ if (IS_MOVB_Rn24_SP (read_memory_unsigned_integer (pc + 2,
+ 2, byte_order)))
{
- LONGEST disp = read_memory_integer (pc + 4, 4);
+ LONGEST disp = read_memory_integer (pc + 4, 4, byte_order);
/* ... and d:24 is negative. */
if (disp < 0 && disp > 0xffffff)
@@ -208,14 +211,15 @@ h8300_is_argument_spill (CORE_ADDR pc)
&& (w & 0xf) <= 2) /* Rs is R0, R1, or R2 */
{
/* ... and d:16 is negative. */
- if (read_memory_integer (pc + 2, 2) < 0)
+ if (read_memory_integer (pc + 2, 2, byte_order) < 0)
return 4;
}
else if (IS_MOVW_EXT (w))
{
- if (IS_MOVW_Rn24_SP (read_memory_unsigned_integer (pc + 2, 2)))
+ if (IS_MOVW_Rn24_SP (read_memory_unsigned_integer (pc + 2,
+ 2, byte_order)))
{
- LONGEST disp = read_memory_integer (pc + 4, 4);
+ LONGEST disp = read_memory_integer (pc + 4, 4, byte_order);
/* ... and d:24 is negative. */
if (disp < 0 && disp > 0xffffff)
@@ -224,22 +228,22 @@ h8300_is_argument_spill (CORE_ADDR pc)
}
else if (IS_MOVL_PRE (w))
{
- int w2 = read_memory_integer (pc + 2, 2);
+ int w2 = read_memory_integer (pc + 2, 2, byte_order);
if (IS_MOVL_Rn16_SP (w2)
&& (w2 & 0xf) <= 2) /* Rs is ER0, ER1, or ER2 */
{
/* ... and d:16 is negative. */
- if (read_memory_integer (pc + 4, 2) < 0)
+ if (read_memory_integer (pc + 4, 2, byte_order) < 0)
return 6;
}
else if (IS_MOVL_EXT (w2))
{
- int w3 = read_memory_integer (pc + 4, 2);
+ int w3 = read_memory_integer (pc + 4, 2, byte_order);
- if (IS_MOVL_Rn24_SP (read_memory_integer (pc + 4, 2)))
+ if (IS_MOVL_Rn24_SP (read_memory_integer (pc + 4, 2, byte_order)))
{
- LONGEST disp = read_memory_integer (pc + 6, 4);
+ LONGEST disp = read_memory_integer (pc + 6, 4, byte_order);
/* ... and d:24 is negative. */
if (disp < 0 && disp > 0xffffff)
@@ -287,9 +291,11 @@ h8300_is_argument_spill (CORE_ADDR pc)
*/
static CORE_ADDR
-h8300_analyze_prologue (CORE_ADDR pc, CORE_ADDR current_pc,
+h8300_analyze_prologue (struct gdbarch *gdbarch,
+ CORE_ADDR pc, CORE_ADDR current_pc,
struct h8300_frame_cache *cache)
{
+ enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
unsigned int op;
int regno, i, spill_size;
@@ -298,7 +304,7 @@ h8300_analyze_prologue (CORE_ADDR pc, CORE_ADDR current_pc,
if (pc >= current_pc)
return current_pc;
- op = read_memory_unsigned_integer (pc, 4);
+ op = read_memory_unsigned_integer (pc, 4, byte_order);
if (IS_PUSHFP_MOVESPFP (op))
{
@@ -312,7 +318,7 @@ h8300_analyze_prologue (CORE_ADDR pc, CORE_ADDR current_pc,
pc += 4;
if (pc >= current_pc)
return current_pc;
- op = read_memory_unsigned_integer (pc, 2);
+ op = read_memory_unsigned_integer (pc, 2, byte_order);
if (IS_MOV_SP_FP (op))
{
cache->uses_fp = 1;
@@ -322,7 +328,7 @@ h8300_analyze_prologue (CORE_ADDR pc, CORE_ADDR current_pc,
while (pc < current_pc)
{
- op = read_memory_unsigned_integer (pc, 2);
+ op = read_memory_unsigned_integer (pc, 2, byte_order);
if (IS_SUB2_SP (op))
{
cache->sp_offset += 2;
@@ -335,12 +341,12 @@ h8300_analyze_prologue (CORE_ADDR pc, CORE_ADDR current_pc,
}
else if (IS_ADD_IMM_SP (op))
{
- cache->sp_offset += -read_memory_integer (pc + 2, 2);
+ cache->sp_offset += -read_memory_integer (pc + 2, 2, byte_order);
pc += 4;
}
else if (IS_SUB_IMM_SP (op))
{
- cache->sp_offset += read_memory_integer (pc + 2, 2);
+ cache->sp_offset += read_memory_integer (pc + 2, 2, byte_order);
pc += 4;
}
else if (IS_SUBL4_SP (op))
@@ -350,9 +356,9 @@ h8300_analyze_prologue (CORE_ADDR pc, CORE_ADDR current_pc,
}
else if (IS_MOV_IMM_Rn (op))
{
- int offset = read_memory_integer (pc + 2, 2);
+ int offset = read_memory_integer (pc + 2, 2, byte_order);
regno = op & 0x000f;
- op = read_memory_unsigned_integer (pc + 4, 2);
+ op = read_memory_unsigned_integer (pc + 4, 2, byte_order);
if (IS_ADD_RnSP (op) && (op & 0x00f0) == regno)
{
cache->sp_offset -= offset;
@@ -375,7 +381,7 @@ h8300_analyze_prologue (CORE_ADDR pc, CORE_ADDR current_pc,
}
else if (op == 0x0100)
{
- op = read_memory_unsigned_integer (pc + 2, 2);
+ op = read_memory_unsigned_integer (pc + 2, 2, byte_order);
if (IS_PUSH (op))
{
regno = op & 0x000f;
@@ -389,7 +395,7 @@ h8300_analyze_prologue (CORE_ADDR pc, CORE_ADDR current_pc,
else if ((op & 0xffcf) == 0x0100)
{
int op1;
- op1 = read_memory_unsigned_integer (pc + 2, 2);
+ op1 = read_memory_unsigned_integer (pc + 2, 2, byte_order);
if (IS_PUSH (op1))
{
/* Since the prefix is 0x01x0, this is not a simple pushm but a
@@ -413,7 +419,7 @@ h8300_analyze_prologue (CORE_ADDR pc, CORE_ADDR current_pc,
/* Check for spilling an argument register to the stack frame.
This could also be an initializing store from non-prologue code,
but I don't think there's any harm in skipping that. */
- while ((spill_size = h8300_is_argument_spill (pc)) > 0
+ while ((spill_size = h8300_is_argument_spill (gdbarch, pc)) > 0
&& pc + spill_size <= current_pc)
pc += spill_size;
@@ -451,7 +457,7 @@ h8300_frame_cache (struct frame_info *this_frame, void **this_cache)
cache->pc = get_frame_func (this_frame);
current_pc = get_frame_pc (this_frame);
if (cache->pc != 0)
- h8300_analyze_prologue (cache->pc, current_pc, cache);
+ h8300_analyze_prologue (gdbarch, cache->pc, current_pc, cache);
if (!cache->uses_fp)
{
@@ -558,7 +564,7 @@ h8300_skip_prologue (struct gdbarch *gdbarch, CORE_ADDR pc)
/* No useable line symbol. Use prologue parsing method. */
h8300_init_frame_cache (gdbarch, &cache);
- return h8300_analyze_prologue (func_addr, func_end, &cache);
+ return h8300_analyze_prologue (gdbarch, func_addr, func_end, &cache);
}
/* No function symbol -- just return the PC. */
@@ -635,6 +641,7 @@ h8300_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
int nargs, struct value **args, CORE_ADDR sp,
int struct_return, CORE_ADDR struct_addr)
{
+ enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
int stack_alloc = 0, stack_offset = 0;
int wordsize = BINWORD (gdbarch);
int reg = E_ARG0_REGNUM;
@@ -698,8 +705,9 @@ h8300_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
for (offset = 0; offset < padded_len; offset += wordsize)
{
- ULONGEST word = extract_unsigned_integer (padded + offset,
- wordsize);
+ ULONGEST word
+ = extract_unsigned_integer (padded + offset,
+ wordsize, byte_order);
regcache_cooked_write_unsigned (regcache, reg++, word);
}
}
@@ -718,7 +726,7 @@ h8300_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
/* Store return address. */
sp -= wordsize;
- write_memory_unsigned_integer (sp, wordsize, bp_addr);
+ write_memory_unsigned_integer (sp, wordsize, byte_order, bp_addr);
/* Update stack pointer. */
regcache_cooked_write_unsigned (regcache, E_SP_REGNUM, sp);
@@ -736,6 +744,8 @@ static void
h8300_extract_return_value (struct type *type, struct regcache *regcache,
void *valbuf)
{
+ struct gdbarch *gdbarch = get_regcache_arch (regcache);
+ enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
int len = TYPE_LENGTH (type);
ULONGEST c, addr;
@@ -744,20 +754,20 @@ h8300_extract_return_value (struct type *type, struct regcache *regcache,
case 1:
case 2:
regcache_cooked_read_unsigned (regcache, E_RET0_REGNUM, &c);
- store_unsigned_integer (valbuf, len, c);
+ store_unsigned_integer (valbuf, len, byte_order, c);
break;
case 4: /* Needs two registers on plain H8/300 */
regcache_cooked_read_unsigned (regcache, E_RET0_REGNUM, &c);
- store_unsigned_integer (valbuf, 2, c);
+ store_unsigned_integer (valbuf, 2, byte_order, c);
regcache_cooked_read_unsigned (regcache, E_RET1_REGNUM, &c);
- store_unsigned_integer ((void *) ((char *) valbuf + 2), 2, c);
+ store_unsigned_integer ((void *)((char *) valbuf + 2), 2, byte_order, c);
break;
case 8: /* long long is now 8 bytes. */
if (TYPE_CODE (type) == TYPE_CODE_INT)
{
regcache_cooked_read_unsigned (regcache, E_RET0_REGNUM, &addr);
- c = read_memory_unsigned_integer ((CORE_ADDR) addr, len);
- store_unsigned_integer (valbuf, len, c);
+ c = read_memory_unsigned_integer ((CORE_ADDR) addr, len, byte_order);
+ store_unsigned_integer (valbuf, len, byte_order, c);
}
else
{
@@ -771,6 +781,8 @@ static void
h8300h_extract_return_value (struct type *type, struct regcache *regcache,
void *valbuf)
{
+ struct gdbarch *gdbarch = get_regcache_arch (regcache);
+ enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
int len = TYPE_LENGTH (type);
ULONGEST c, addr;
@@ -780,15 +792,16 @@ h8300h_extract_return_value (struct type *type, struct regcache *regcache,
case 2:
case 4:
regcache_cooked_read_unsigned (regcache, E_RET0_REGNUM, &c);
- store_unsigned_integer (valbuf, len, c);
+ store_unsigned_integer (valbuf, len, byte_order, c);
break;
case 8: /* long long is now 8 bytes. */
if (TYPE_CODE (type) == TYPE_CODE_INT)
{
regcache_cooked_read_unsigned (regcache, E_RET0_REGNUM, &c);
- store_unsigned_integer (valbuf, 4, c);
+ store_unsigned_integer (valbuf, 4, byte_order, c);
regcache_cooked_read_unsigned (regcache, E_RET1_REGNUM, &c);
- store_unsigned_integer ((void *) ((char *) valbuf + 4), 4, c);
+ store_unsigned_integer ((void *) ((char *) valbuf + 4), 4,
+ byte_order, c);
}
else
{
@@ -835,6 +848,8 @@ static void
h8300_store_return_value (struct type *type, struct regcache *regcache,
const void *valbuf)
{
+ struct gdbarch *gdbarch = get_regcache_arch (regcache);
+ enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
int len = TYPE_LENGTH (type);
ULONGEST val;
@@ -842,11 +857,11 @@ h8300_store_return_value (struct type *type, struct regcache *regcache,
{
case 1:
case 2: /* short... */
- val = extract_unsigned_integer (valbuf, len);
+ val = extract_unsigned_integer (valbuf, len, byte_order);
regcache_cooked_write_unsigned (regcache, E_RET0_REGNUM, val);
break;
case 4: /* long, float */
- val = extract_unsigned_integer (valbuf, len);
+ val = extract_unsigned_integer (valbuf, len, byte_order);
regcache_cooked_write_unsigned (regcache, E_RET0_REGNUM,
(val >> 16) & 0xffff);
regcache_cooked_write_unsigned (regcache, E_RET1_REGNUM, val & 0xffff);
@@ -862,6 +877,8 @@ static void
h8300h_store_return_value (struct type *type, struct regcache *regcache,
const void *valbuf)
{
+ struct gdbarch *gdbarch = get_regcache_arch (regcache);
+ enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
int len = TYPE_LENGTH (type);
ULONGEST val;
@@ -870,11 +887,11 @@ h8300h_store_return_value (struct type *type, struct regcache *regcache,
case 1:
case 2:
case 4: /* long, float */
- val = extract_unsigned_integer (valbuf, len);
+ val = extract_unsigned_integer (valbuf, len, byte_order);
regcache_cooked_write_unsigned (regcache, E_RET0_REGNUM, val);
break;
case 8:
- val = extract_unsigned_integer (valbuf, len);
+ val = extract_unsigned_integer (valbuf, len, byte_order);
regcache_cooked_write_unsigned (regcache, E_RET0_REGNUM,
(val >> 32) & 0xffffffff);
regcache_cooked_write_unsigned (regcache, E_RET1_REGNUM,
generated by cgit v1.1 at 2024-12-17 06:52:58 +0000