#include "gdb/sim-sh.h"
#include "language.h"
#include "sh64-tdep.h"
+#include <algorithm>
/* Information that is dependent on the processor variant. */
enum sh_abi
return 0;
}
-static const unsigned char *
-sh64_breakpoint_from_pc (struct gdbarch *gdbarch,
- CORE_ADDR *pcptr, int *lenptr)
+static int
+sh64_breakpoint_kind_from_pc (struct gdbarch *gdbarch, CORE_ADDR *pcptr)
+{
+ if (pc_is_isa32 (*pcptr))
+ {
+ *pcptr = UNMAKE_ISA32_ADDR (*pcptr);
+ return 4;
+ }
+ else
+ return 2;
+}
+
+static const gdb_byte *
+sh64_sw_breakpoint_from_kind (struct gdbarch *gdbarch, int kind, int *size)
{
- /* The BRK instruction for shmedia is
+ *size = kind;
+
+ /* The BRK instruction for shmedia is
01101111 11110101 11111111 11110000
which translates in big endian mode to 0x6f, 0xf5, 0xff, 0xf0
and in little endian mode to 0xf0, 0xff, 0xf5, 0x6f */
which translates in big endian mode to 0x0, 0x3b
and in little endian mode to 0x3b, 0x0 */
- if (gdbarch_byte_order (gdbarch) == BFD_ENDIAN_BIG)
+ if (kind == 4)
{
- if (pc_is_isa32 (*pcptr))
- {
- static unsigned char big_breakpoint_media[] = {
- 0x6f, 0xf5, 0xff, 0xf0
- };
- *pcptr = UNMAKE_ISA32_ADDR (*pcptr);
- *lenptr = sizeof (big_breakpoint_media);
- return big_breakpoint_media;
- }
+ static unsigned char big_breakpoint_media[] = {
+ 0x6f, 0xf5, 0xff, 0xf0
+ };
+ static unsigned char little_breakpoint_media[] = {
+ 0xf0, 0xff, 0xf5, 0x6f
+ };
+
+ if (gdbarch_byte_order (gdbarch) == BFD_ENDIAN_BIG)
+ return big_breakpoint_media;
else
- {
- static unsigned char big_breakpoint_compact[] = {0x0, 0x3b};
- *lenptr = sizeof (big_breakpoint_compact);
- return big_breakpoint_compact;
- }
+ return little_breakpoint_media;
}
else
{
- if (pc_is_isa32 (*pcptr))
- {
- static unsigned char little_breakpoint_media[] = {
- 0xf0, 0xff, 0xf5, 0x6f
- };
- *pcptr = UNMAKE_ISA32_ADDR (*pcptr);
- *lenptr = sizeof (little_breakpoint_media);
- return little_breakpoint_media;
- }
+ static unsigned char big_breakpoint_compact[] = {0x0, 0x3b};
+ static unsigned char little_breakpoint_compact[] = {0x3b, 0x0};
+
+ if (gdbarch_byte_order (gdbarch) == BFD_ENDIAN_BIG)
+ return big_breakpoint_compact;
else
- {
- static unsigned char little_breakpoint_compact[] = {0x3b, 0x0};
- *lenptr = sizeof (little_breakpoint_compact);
- return little_breakpoint_compact;
- }
+ return little_breakpoint_compact;
}
}
/* If after_prologue returned a useful address, then use it. Else
fall back on the instruction skipping code. */
if (post_prologue_pc != 0)
- return max (pc, post_prologue_pc);
+ return std::max (pc, post_prologue_pc);
else
return sh64_skip_prologue_hard_way (gdbarch, pc);
}
}
else if (IS_MOV_R14 (insn))
- cache->saved_regs[MEDIA_FP_REGNUM] =
- cache->sp_offset - ((((insn & 0xf) ^ 0x8) - 0x8) << 2);
+ {
+ cache->saved_regs[MEDIA_FP_REGNUM] =
+ cache->sp_offset - ((((insn & 0xf) ^ 0x8) - 0x8) << 2);
+ cache->uses_fp = 1;
+ }
else if (IS_MOV_R0 (insn))
{
/* Store R14 at r0_val-4 from SP. Decrement r0 by 4. */
cache->saved_regs[MEDIA_FP_REGNUM] = cache->sp_offset
- (r0_val - 4);
+ cache->uses_fp = 1;
r0_val -= 4;
}
9) << 2);
else if (IS_STQ_R14_R15 (insn))
- cache->saved_regs[MEDIA_FP_REGNUM]
- = cache->sp_offset - (sign_extend ((insn & 0xffc00) >> 10,
- 9) << 3);
+ {
+ cache->saved_regs[MEDIA_FP_REGNUM]
+ = cache->sp_offset - (sign_extend ((insn & 0xffc00) >> 10,
+ 9) << 3);
+ cache->uses_fp = 1;
+ }
else if (IS_STL_R14_R15 (insn))
- cache->saved_regs[MEDIA_FP_REGNUM]
- = cache->sp_offset - (sign_extend ((insn & 0xffc00) >> 10,
- 9) << 2);
+ {
+ cache->saved_regs[MEDIA_FP_REGNUM]
+ = cache->sp_offset - (sign_extend ((insn & 0xffc00) >> 10,
+ 9) << 2);
+ cache->uses_fp = 1;
+ }
else if (IS_MOV_SP_FP_MEDIA (insn))
break;
}
}
-
- if (cache->saved_regs[MEDIA_FP_REGNUM] >= 0)
- cache->uses_fp = 1;
}
static CORE_ADDR
sh64_do_register (struct gdbarch *gdbarch, struct ui_file *file,
struct frame_info *frame, int regnum)
{
- unsigned char raw_buffer[MAX_REGISTER_SIZE];
struct value_print_options opts;
+ struct value *val;
fputs_filtered (gdbarch_register_name (gdbarch, regnum), file);
print_spaces_filtered (15 - strlen (gdbarch_register_name
(gdbarch, regnum)), file);
/* Get the data in raw format. */
- if (!deprecated_frame_register_read (frame, regnum, raw_buffer))
+ val = get_frame_register_value (frame, regnum);
+ if (value_optimized_out (val) || !value_entirely_available (val))
{
fprintf_filtered (file, "*value not available*\n");
return;
get_formatted_print_options (&opts, 'x');
opts.deref_ref = 1;
- val_print (register_type (gdbarch, regnum), raw_buffer, 0, 0,
- file, 0, NULL, &opts, current_language);
+ val_print (register_type (gdbarch, regnum),
+ 0, 0,
+ file, 0, val, &opts, current_language);
fprintf_filtered (file, "\t");
get_formatted_print_options (&opts, 0);
opts.deref_ref = 1;
- val_print (register_type (gdbarch, regnum), raw_buffer, 0, 0,
- file, 0, NULL, &opts, current_language);
+ val_print (register_type (gdbarch, regnum),
+ 0, 0,
+ file, 0, val, &opts, current_language);
fprintf_filtered (file, "\n");
}
set_gdbarch_pseudo_register_read (gdbarch, sh64_pseudo_register_read);
set_gdbarch_pseudo_register_write (gdbarch, sh64_pseudo_register_write);
- set_gdbarch_breakpoint_from_pc (gdbarch, sh64_breakpoint_from_pc);
+ set_gdbarch_breakpoint_kind_from_pc (gdbarch, sh64_breakpoint_kind_from_pc);
+ set_gdbarch_sw_breakpoint_from_kind (gdbarch, sh64_sw_breakpoint_from_kind);
set_gdbarch_print_insn (gdbarch, print_insn_sh);
set_gdbarch_register_sim_regno (gdbarch, legacy_register_sim_regno);
projects / deliverable / binutils-gdb.git / blobdiff