/* Target-dependent code for Renesas Super-H, for GDB.
- Copyright (C) 1993-2005, 2007-2012 Free Software Foundation, Inc.
+ Copyright (C) 1993-2015 Free Software Foundation, Inc.
This file is part of GDB.
#include "value.h"
#include "dis-asm.h"
#include "inferior.h"
-#include "gdb_string.h"
-#include "gdb_assert.h"
#include "arch-utils.h"
#include "floatformat.h"
#include "regcache.h"
"r0b0", "r1b0", "r2b0", "r3b0", "r4b0", "r5b0", "r6b0", "r7b0",
/* bank 1 51 - 58 */
"r0b1", "r1b1", "r2b1", "r3b1", "r4b1", "r5b1", "r6b1", "r7b1",
+ /* 59 - 66 */
"", "", "", "", "", "", "", "",
/* pseudo bank register. */
"",
- /* double precision (pseudo) 59 - 66 */
+ /* double precision (pseudo) 68 - 75 */
"dr0", "dr2", "dr4", "dr6", "dr8", "dr10", "dr12", "dr14",
- /* vectors (pseudo) 67 - 70 */
+ /* vectors (pseudo) 76 - 79 */
"fv0", "fv4", "fv8", "fv12",
- /* FIXME: missing XF 71 - 86 */
- /* FIXME: missing XD 87 - 94 */
+ /* FIXME: missing XF */
+ /* FIXME: missing XD */
};
if (reg_nr < 0)
return NULL;
"r0b0", "r1b0", "r2b0", "r3b0", "r4b0", "r5b0", "r6b0", "r7b0",
/* bank 1 51 - 58 */
"r0b1", "r1b1", "r2b1", "r3b1", "r4b1", "r5b1", "r6b1", "r7b1",
+ /* 59 - 66 */
"", "", "", "", "", "", "", "",
/* pseudo bank register. */
"",
- /* double precision (pseudo) 59 - 66 -- not for nofpu target */
+ /* double precision (pseudo) 68 - 75 -- not for nofpu target */
"", "", "", "", "", "", "", "",
- /* vectors (pseudo) 67 - 70 -- not for nofpu target */
+ /* vectors (pseudo) 76 - 79 -- not for nofpu target */
"", "", "", "",
};
if (reg_nr < 0)
to R7. */
/* Helper function to justify value in register according to endianess. */
-static char *
+static const gdb_byte *
sh_justify_value_in_reg (struct gdbarch *gdbarch, struct value *val, int len)
{
- static char valbuf[4];
+ static gdb_byte valbuf[4];
memset (valbuf, 0, sizeof (valbuf));
if (len < 4)
{
/* value gets right-justified in the register or stack word. */
if (gdbarch_byte_order (gdbarch) == BFD_ENDIAN_BIG)
- memcpy (valbuf + (4 - len), (char *) value_contents (val), len);
+ memcpy (valbuf + (4 - len), value_contents (val), len);
else
- memcpy (valbuf, (char *) value_contents (val), len);
+ memcpy (valbuf, value_contents (val), len);
return valbuf;
}
- return (char *) value_contents (val);
+ return value_contents (val);
}
/* Helper function to eval number of bytes to allocate on stack. */
static int
sh_treat_as_flt_p (struct type *type)
{
- int len = TYPE_LENGTH (type);
-
/* Ordinary float types are obviously treated as float. */
if (TYPE_CODE (type) == TYPE_CODE_FLT)
return 1;
struct type *func_type = value_type (function);
struct type *type;
CORE_ADDR regval;
- char *val;
+ const gdb_byte *val;
int len, reg_size = 0;
int pass_on_stack = 0;
int treat_as_flt;
struct type *func_type = value_type (function);
struct type *type;
CORE_ADDR regval;
- char *val;
+ const gdb_byte *val;
int len, reg_size = 0;
int pass_on_stack = 0;
int last_reg_arg = INT_MAX;
TYPE, and copy that, in virtual format, into VALBUF. */
static void
sh_extract_return_value_nofpu (struct type *type, struct regcache *regcache,
- void *valbuf)
+ gdb_byte *valbuf)
{
struct gdbarch *gdbarch = get_regcache_arch (regcache);
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
{
int i, regnum = R0_REGNUM;
for (i = 0; i < len; i += 4)
- regcache_raw_read (regcache, regnum++, (char *) valbuf + i);
+ regcache_raw_read (regcache, regnum++, valbuf + i);
}
else
error (_("bad size for return value"));
static void
sh_extract_return_value_fpu (struct type *type, struct regcache *regcache,
- void *valbuf)
+ gdb_byte *valbuf)
{
struct gdbarch *gdbarch = get_regcache_arch (regcache);
if (sh_treat_as_flt_p (type))
for (i = 0; i < len; i += 4)
if (gdbarch_byte_order (gdbarch) == BFD_ENDIAN_LITTLE)
regcache_raw_read (regcache, regnum++,
- (char *) valbuf + len - 4 - i);
+ valbuf + len - 4 - i);
else
- regcache_raw_read (regcache, regnum++, (char *) valbuf + i);
+ regcache_raw_read (regcache, regnum++, valbuf + i);
}
else
sh_extract_return_value_nofpu (type, regcache, valbuf);
the result is stored in r0, left-justified. */
static void
sh_store_return_value_nofpu (struct type *type, struct regcache *regcache,
- const void *valbuf)
+ const gdb_byte *valbuf)
{
struct gdbarch *gdbarch = get_regcache_arch (regcache);
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
{
int i, regnum = R0_REGNUM;
for (i = 0; i < len; i += 4)
- regcache_raw_write (regcache, regnum++, (char *) valbuf + i);
+ regcache_raw_write (regcache, regnum++, valbuf + i);
}
}
static void
sh_store_return_value_fpu (struct type *type, struct regcache *regcache,
- const void *valbuf)
+ const gdb_byte *valbuf)
{
struct gdbarch *gdbarch = get_regcache_arch (regcache);
if (sh_treat_as_flt_p (type))
for (i = 0; i < len; i += 4)
if (gdbarch_byte_order (gdbarch) == BFD_ENDIAN_LITTLE)
regcache_raw_write (regcache, regnum++,
- (char *) valbuf + len - 4 - i);
+ valbuf + len - 4 - i);
else
- regcache_raw_write (regcache, regnum++, (char *) valbuf + i);
+ regcache_raw_write (regcache, regnum++, valbuf + i);
}
else
sh_store_return_value_nofpu (type, regcache, valbuf);
/* On the sh4, the DRi pseudo registers are problematic if the target
is little endian. When the user writes one of those registers, for
- instance with 'ser var $dr0=1', we want the double to be stored
+ instance with 'set var $dr0=1', we want the double to be stored
like this:
- fr0 = 0x00 0x00 0x00 0x00 0x00 0xf0 0x3f
- fr1 = 0x00 0x00 0x00 0x00 0x00 0x00 0x00
+ fr0 = 0x00 0x00 0xf0 0x3f
+ fr1 = 0x00 0x00 0x00 0x00
This corresponds to little endian byte order & big endian word
order. However if we let gdb write the register w/o conversion, it
will write fr0 and fr1 this way:
- fr0 = 0x00 0x00 0x00 0x00 0x00 0x00 0x00
- fr1 = 0x00 0x00 0x00 0x00 0x00 0xf0 0x3f
+ fr0 = 0x00 0x00 0x00 0x00
+ fr1 = 0x00 0x00 0xf0 0x3f
because it will consider fr0 and fr1 as a single LE stretch of memory.
To achieve what we want we must force gdb to store things in
In case the target is big endian, there is no problem, the
raw bytes will look like:
- fr0 = 0x3f 0xf0 0x00 0x00 0x00 0x00 0x00
- fr1 = 0x00 0x00 0x00 0x00 0x00 0x00 0x00
+ fr0 = 0x3f 0xf0 0x00 0x00
+ fr1 = 0x00 0x00 0x00 0x00
The other pseudo registers (the FVs) also don't pose a problem
because they are stored as 4 individual FP elements. */
static void
-sh_register_convert_to_virtual (int regnum, struct type *type,
- char *from, char *to)
+sh_register_convert_to_virtual (struct gdbarch *gdbarch, int regnum,
+ struct type *type, gdb_byte *from, gdb_byte *to)
{
+ if (gdbarch_byte_order (gdbarch) != BFD_ENDIAN_LITTLE)
+ {
+ /* It is a no-op. */
+ memcpy (to, from, register_size (gdbarch, regnum));
+ return;
+ }
+
if (regnum >= DR0_REGNUM && regnum <= DR_LAST_REGNUM)
{
DOUBLEST val;
}
static void
-sh_register_convert_to_raw (struct type *type, int regnum,
- const void *from, void *to)
+sh_register_convert_to_raw (struct gdbarch *gdbarch, struct type *type,
+ int regnum, const gdb_byte *from, gdb_byte *to)
{
+ if (gdbarch_byte_order (gdbarch) != BFD_ENDIAN_LITTLE)
+ {
+ /* It is a no-op. */
+ memcpy (to, from, register_size (gdbarch, regnum));
+ return;
+ }
+
if (regnum >= DR0_REGNUM && regnum <= DR_LAST_REGNUM)
{
DOUBLEST val = extract_typed_floating (from, type);
int reg_nr, gdb_byte *buffer)
{
int base_regnum;
- char temp_buffer[MAX_REGISTER_SIZE];
+ gdb_byte temp_buffer[MAX_REGISTER_SIZE];
enum register_status status;
if (reg_nr == PSEUDO_BANK_REGNUM)
if (status == REG_VALID)
{
/* We must pay attention to the endiannes. */
- sh_register_convert_to_virtual (reg_nr,
+ sh_register_convert_to_virtual (gdbarch, reg_nr,
register_type (gdbarch, reg_nr),
temp_buffer, buffer);
}
int reg_nr, const gdb_byte *buffer)
{
int base_regnum, portion;
- char temp_buffer[MAX_REGISTER_SIZE];
+ gdb_byte temp_buffer[MAX_REGISTER_SIZE];
if (reg_nr == PSEUDO_BANK_REGNUM)
{
base_regnum = dr_reg_base_num (gdbarch, reg_nr);
/* We must pay attention to the endiannes. */
- sh_register_convert_to_raw (register_type (gdbarch, reg_nr),
+ sh_register_convert_to_raw (gdbarch, register_type (gdbarch, reg_nr),
reg_nr, buffer, temp_buffer);
/* Write the real regs for which this one is an alias. */
/* Write the real regs for which this one is an alias. */
for (portion = 0; portion < 4; portion++)
regcache_raw_write (regcache, base_regnum + portion,
- ((char *) buffer
+ (buffer
+ register_size (gdbarch,
base_regnum) * portion));
}
CORE_ADDR addr_in_block;
addr_in_block = get_frame_address_in_block (this_frame);
- if (in_plt_section (addr_in_block, NULL))
+ if (in_plt_section (addr_in_block))
return 1;
return 0;
sh_stub_unwind_sniffer
};
-/* The epilogue is defined here as the area at the end of a function,
+/* Implement the stack_frame_destroyed_p gdbarch method.
+
+ The epilogue is defined here as the area at the end of a function,
either on the `ret' instruction itself or after an instruction which
destroys the function's stack frame. */
+
static int
-sh_in_function_epilogue_p (struct gdbarch *gdbarch, CORE_ADDR pc)
+sh_stack_frame_destroyed_p (struct gdbarch *gdbarch, CORE_ADDR pc)
{
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
CORE_ADDR func_addr = 0, func_end = 0;
/* The following two regsets have the same contents, so it is tempting to
unify them, but they are distiguished by their address, so don't. */
-struct regset sh_corefile_gregset =
+const struct regset sh_corefile_gregset =
{
NULL,
sh_corefile_supply_regset,
sh_corefile_collect_regset
};
-static struct regset sh_corefile_fpregset =
+static const struct regset sh_corefile_fpregset =
{
NULL,
sh_corefile_supply_regset,
sh_corefile_collect_regset
};
-static const struct regset *
-sh_regset_from_core_section (struct gdbarch *gdbarch, const char *sect_name,
- size_t sect_size)
+static void
+sh_iterate_over_regset_sections (struct gdbarch *gdbarch,
+ iterate_over_regset_sections_cb *cb,
+ void *cb_data,
+ const struct regcache *regcache)
{
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
- if (tdep->core_gregmap && strcmp (sect_name, ".reg") == 0)
- return &sh_corefile_gregset;
+ if (tdep->core_gregmap != NULL)
+ cb (".reg", tdep->sizeof_gregset, &sh_corefile_gregset, NULL, cb_data);
- if (tdep->core_fpregmap && strcmp (sect_name, ".reg2") == 0)
- return &sh_corefile_fpregset;
-
- return NULL;
+ if (tdep->core_fpregmap != NULL)
+ cb (".reg2", tdep->sizeof_fpregset, &sh_corefile_fpregset, NULL, cb_data);
}
/* This is the implementation of gdbarch method
/* None found, create a new architecture from the information
provided. */
- tdep = XZALLOC (struct gdbarch_tdep);
+ tdep = XCNEW (struct gdbarch_tdep);
gdbarch = gdbarch_alloc (&info, tdep);
set_gdbarch_short_bit (gdbarch, 2 * TARGET_CHAR_BIT);
set_gdbarch_dummy_id (gdbarch, sh_dummy_id);
frame_base_set_default (gdbarch, &sh_frame_base);
- set_gdbarch_in_function_epilogue_p (gdbarch, sh_in_function_epilogue_p);
+ set_gdbarch_stack_frame_destroyed_p (gdbarch, sh_stack_frame_destroyed_p);
dwarf2_frame_set_init_reg (gdbarch, sh_dwarf2_frame_init_reg);
- set_gdbarch_regset_from_core_section (gdbarch, sh_regset_from_core_section);
+ set_gdbarch_iterate_over_regset_sections
+ (gdbarch, sh_iterate_over_regset_sections);
switch (info.bfd_arch_info->mach)
{
case bfd_mach_sh2e:
/* doubles on sh2e and sh3e are actually 4 byte. */
set_gdbarch_double_bit (gdbarch, 4 * TARGET_CHAR_BIT);
+ set_gdbarch_double_format (gdbarch, floatformats_ieee_single);
set_gdbarch_register_name (gdbarch, sh_sh2e_register_name);
set_gdbarch_register_type (gdbarch, sh_sh3e_register_type);
case bfd_mach_sh2a_or_sh3e:
/* doubles on sh2e and sh3e are actually 4 byte. */
set_gdbarch_double_bit (gdbarch, 4 * TARGET_CHAR_BIT);
+ set_gdbarch_double_format (gdbarch, floatformats_ieee_single);
set_gdbarch_register_name (gdbarch, sh_sh3e_register_name);
set_gdbarch_register_type (gdbarch, sh_sh3e_register_type);
void
_initialize_sh_tdep (void)
{
- struct cmd_list_element *c;
-
gdbarch_register (bfd_arch_sh, sh_gdbarch_init, NULL);
- /* We can't use an alias here because 'info registers' has not yet been
- registered. */
- c = add_com ("regs", class_vars, all_registers_info,
- _("Print all registers"));
- deprecate_cmd (c, "info all-registers");
-
add_prefix_cmd ("sh", no_class, set_sh_command, "SH specific commands.",
&setshcmdlist, "set sh ", 0, &setlist);
add_prefix_cmd ("sh", no_class, show_sh_command, "SH specific commands.",
projects / deliverable / binutils-gdb.git / blobdiff