Remove MAX_REGISTER_SIZE from target.c
Commit Message
Avoid copying the register in debug_print_register by moving the func
into regcache.
Tested using make check with board files unix and native-gdbserver.
Ok to commit?
Alan.
2017-02-24 Alan Hayward <alan.hayward@arm.com>
* regcache.c (regcache_debug_print_register): New function.
* regcache.h (regcache_debug_print_register): New declaration.
* target.c (debug_print_register): Remove.
(target_fetch_registers): Call regcache_debug_print_register.
(target_store_registers): Likewise.
Comments
Alan Hayward <Alan.Hayward@arm.com> writes:
> +extern void regcache_debug_print_register (const char *func,
> + struct regcache *regcache,
> + int regno);
Comments are needed.
> +
> #endif /* REGCACHE_H */
> diff --git a/gdb/regcache.c b/gdb/regcache.c
> index f190eda0e47c5c03744fc26263505d1c30ea1ee8..31aa1baf7ef69c27c00e45e3c8d4eb3c41dc4203 100644
> --- a/gdb/regcache.c
> +++ b/gdb/regcache.c
> @@ -1259,6 +1259,42 @@ regcache_write_pc (struct regcache *regcache, CORE_ADDR pc)
> reinit_frame_cache ();
> }
>
> +void
> +regcache_debug_print_register (const char *func, struct regcache *regcache,
> + int regno)
> +{
> + struct gdbarch *gdbarch = get_regcache_arch (regcache);
> +
> + fprintf_unfiltered (gdb_stdlog, "%s ", func);
> + if (regno >= 0 && regno < gdbarch_num_regs (gdbarch)
> + && gdbarch_register_name (gdbarch, regno) != NULL
> + && gdbarch_register_name (gdbarch, regno)[0] != '\0')
> + fprintf_unfiltered (gdb_stdlog, "(%s)",
> + gdbarch_register_name (gdbarch, regno));
> + else
> + fprintf_unfiltered (gdb_stdlog, "(%d)", regno);
> + if (regno >= 0 && regno < gdbarch_num_regs (gdbarch))
> + {
> + enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
> + int i, size = register_size (gdbarch, regno);
> + gdb_byte *buf = register_buffer (regcache, regno);
> +
> + regcache_raw_collect (regcache, regno, buf);
Don't need to call regcache_raw_collect, otherwise, the src and dst of
copy is at the same address (register_buffer (regcache, regno)).
@@ -232,4 +232,8 @@ extern void regcache_cpy (struct regcache *dest, struct regcache *src);
extern void registers_changed (void);
extern void registers_changed_ptid (ptid_t);
+extern void regcache_debug_print_register (const char *func,
+ struct regcache *regcache,
+ int regno);
+
#endif /* REGCACHE_H */
@@ -1259,6 +1259,42 @@ regcache_write_pc (struct regcache *regcache, CORE_ADDR pc)
reinit_frame_cache ();
}
+void
+regcache_debug_print_register (const char *func, struct regcache *regcache,
+ int regno)
+{
+ struct gdbarch *gdbarch = get_regcache_arch (regcache);
+
+ fprintf_unfiltered (gdb_stdlog, "%s ", func);
+ if (regno >= 0 && regno < gdbarch_num_regs (gdbarch)
+ && gdbarch_register_name (gdbarch, regno) != NULL
+ && gdbarch_register_name (gdbarch, regno)[0] != '\0')
+ fprintf_unfiltered (gdb_stdlog, "(%s)",
+ gdbarch_register_name (gdbarch, regno));
+ else
+ fprintf_unfiltered (gdb_stdlog, "(%d)", regno);
+ if (regno >= 0 && regno < gdbarch_num_regs (gdbarch))
+ {
+ enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
+ int i, size = register_size (gdbarch, regno);
+ gdb_byte *buf = register_buffer (regcache, regno);
+
+ regcache_raw_collect (regcache, regno, buf);
+ fprintf_unfiltered (gdb_stdlog, " = ");
+ for (i = 0; i < size; i++)
+ {
+ fprintf_unfiltered (gdb_stdlog, "%02x", buf[i]);
+ }
+ if (size <= sizeof (LONGEST))
+ {
+ ULONGEST val = extract_unsigned_integer (buf, size, byte_order);
+
+ fprintf_unfiltered (gdb_stdlog, " %s %s",
+ core_addr_to_string_nz (val), plongest (val));
+ }
+ }
+ fprintf_unfiltered (gdb_stdlog, "\n");
+}
static void
reg_flush_command (char *command, int from_tty)
@@ -3547,49 +3547,12 @@ target_options_to_string (int target_options)
return ret;
}
-static void
-debug_print_register (const char * func,
- struct regcache *regcache, int regno)
-{
- struct gdbarch *gdbarch = get_regcache_arch (regcache);
-
- fprintf_unfiltered (gdb_stdlog, "%s ", func);
- if (regno >= 0 && regno < gdbarch_num_regs (gdbarch)
- && gdbarch_register_name (gdbarch, regno) != NULL
- && gdbarch_register_name (gdbarch, regno)[0] != '\0')
- fprintf_unfiltered (gdb_stdlog, "(%s)",
- gdbarch_register_name (gdbarch, regno));
- else
- fprintf_unfiltered (gdb_stdlog, "(%d)", regno);
- if (regno >= 0 && regno < gdbarch_num_regs (gdbarch))
- {
- enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
- int i, size = register_size (gdbarch, regno);
- gdb_byte buf[MAX_REGISTER_SIZE];
-
- regcache_raw_collect (regcache, regno, buf);
- fprintf_unfiltered (gdb_stdlog, " = ");
- for (i = 0; i < size; i++)
- {
- fprintf_unfiltered (gdb_stdlog, "%02x", buf[i]);
- }
- if (size <= sizeof (LONGEST))
- {
- ULONGEST val = extract_unsigned_integer (buf, size, byte_order);
-
- fprintf_unfiltered (gdb_stdlog, " %s %s",
- core_addr_to_string_nz (val), plongest (val));
- }
- }
- fprintf_unfiltered (gdb_stdlog, "\n");
-}
-
void
target_fetch_registers (struct regcache *regcache, int regno)
{
current_target.to_fetch_registers (¤t_target, regcache, regno);
if (targetdebug)
- debug_print_register ("target_fetch_registers", regcache, regno);
+ regcache_debug_print_register ("target_fetch_registers", regcache, regno);
}
void
@@ -3601,7 +3564,8 @@ target_store_registers (struct regcache *regcache, int regno)
current_target.to_store_registers (¤t_target, regcache, regno);
if (targetdebug)
{
- debug_print_register ("target_store_registers", regcache, regno);
+ regcache_debug_print_register ("target_store_registers", regcache,
+ regno);
}
}