#include "inferior.h" /* for BEFORE_TEXT_END etc. */
#include "gdb_string.h"
#include "arch-utils.h"
+#include "floatformat.h"
+
+#include "solib-svr4.h"
#undef XMALLOC
#define XMALLOC(TYPE) ((TYPE*) xmalloc (sizeof (TYPE)))
-static gdbarch_register_raw_size_ftype sh_register_raw_size;
-static gdbarch_register_virtual_size_ftype sh_register_virtual_size;
-static gdbarch_register_virtual_type_ftype sh_register_virtual_type;
-static gdbarch_register_byte_ftype sh_register_byte;
+
+/* Frame interpretation related functions. */
static gdbarch_breakpoint_from_pc_ftype sh_breakpoint_from_pc;
static gdbarch_frame_chain_ftype sh_frame_chain;
static gdbarch_frame_saved_pc_ftype sh_frame_saved_pc;
static gdbarch_skip_prologue_ftype sh_skip_prologue;
+
static gdbarch_frame_init_saved_regs_ftype sh_nofp_frame_init_saved_regs;
static gdbarch_frame_init_saved_regs_ftype sh_fp_frame_init_saved_regs;
+static gdbarch_init_extra_frame_info_ftype sh_init_extra_frame_info;
+static gdbarch_pop_frame_ftype sh_pop_frame;
+static gdbarch_saved_pc_after_call_ftype sh_saved_pc_after_call;
+static gdbarch_frame_args_address_ftype sh_frame_args_address;
+static gdbarch_frame_locals_address_ftype sh_frame_locals_address;
+
+/* Function call related functions. */
static gdbarch_extract_return_value_ftype sh_extract_return_value;
static gdbarch_extract_struct_value_address_ftype sh_extract_struct_value_address;
static gdbarch_use_struct_convention_ftype sh_use_struct_convention;
-static gdbarch_init_extra_frame_info_ftype sh_init_extra_frame_info;
static gdbarch_store_struct_return_ftype sh_store_struct_return;
static gdbarch_push_arguments_ftype sh_push_arguments;
static gdbarch_push_return_address_ftype sh_push_return_address;
-static gdbarch_pop_frame_ftype sh_pop_frame;
-static gdbarch_saved_pc_after_call_ftype sh_saved_pc_after_call;
+static gdbarch_coerce_float_to_double_ftype sh_coerce_float_to_double;
+static gdbarch_store_return_value_ftype sh_default_store_return_value;
+static gdbarch_store_return_value_ftype sh3e_sh4_store_return_value;
static gdbarch_register_name_ftype sh_generic_register_name;
static gdbarch_register_name_ftype sh_sh_register_name;
static gdbarch_register_name_ftype sh_sh_dsp_register_name;
static gdbarch_register_name_ftype sh_sh3_dsp_register_name;
-static gdbarch_frame_args_address_ftype sh_frame_args_address;
-static gdbarch_frame_locals_address_ftype sh_frame_locals_address;
-static gdbarch_coerce_float_to_double_ftype sh_coerce_float_to_double;
-static gdbarch_store_return_value_ftype sh_default_store_return_value;
-static gdbarch_store_return_value_ftype sh3e_sh4_store_return_value;
+/* Registers display related functions */
+static gdbarch_register_raw_size_ftype sh_default_register_raw_size;
+static gdbarch_register_raw_size_ftype sh_sh4_register_raw_size;
-static gdbarch_register_byte_ftype sh_register_byte;
-static gdbarch_register_raw_size_ftypesh_register_raw_size;
static gdbarch_register_virtual_size_ftype sh_register_virtual_size;
+
+static gdbarch_register_byte_ftype sh_default_register_byte;
+static gdbarch_register_byte_ftype sh_sh4_register_byte;
+
static gdbarch_register_virtual_type_ftype sh_sh3e_register_virtual_type;
+static gdbarch_register_virtual_type_ftype sh_sh4_register_virtual_type;
static gdbarch_register_virtual_type_ftype sh_default_register_virtual_type;
-static void sh_generic_show_regs (char *, int);
-static void sh3_show_regs (char *, int);
-static void sh3e_show_regs (char *, int);
-static void sh3_dsp_show_regs (char *, int);
-static void sh_dsp_show_regs (char *, int);
-static void sh4_show_regs (char *, int);
+static void sh_generic_show_regs (void);
+static void sh3_show_regs (void);
+static void sh3e_show_regs (void);
+static void sh3_dsp_show_regs (void);
+static void sh_dsp_show_regs (void);
+static void sh4_show_regs (void);
+static void sh_show_regs_command (char *, int);
+
+static struct type *sh_sh4_build_float_register_type (int high);
+
+static gdbarch_fetch_pseudo_register_ftype sh_fetch_pseudo_register;
+static gdbarch_store_pseudo_register_ftype sh_store_pseudo_register;
+static int fv_reg_base_num (int);
+static int dr_reg_base_num (int);
+static void do_fv_register_info (int fv_regnum);
+static void do_dr_register_info (int dr_regnum);
+static void sh_do_pseudo_register (int regnum);
+static void sh_do_fp_register (int regnum);
+static void sh_do_register (int regnum);
+static void sh_print_register (int regnum);
+
+void (*sh_show_regs) (void);
+int (*print_sh_insn) (bfd_vma, disassemble_info*);
-void (*sh_show_regs) (char *, int);
-
/* Define other aspects of the stack frame.
we keep a copy of the worked out return pc lying around, since it
is a useful bit of info */
return register_names[reg_nr];
}
+static char *
+sh_sh4_register_name (int reg_nr)
+{
+ static char *register_names[] =
+ {
+ "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7",
+ "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15",
+ "pc", "pr", "gbr", "vbr", "mach", "macl", "sr",
+ "fpul", "fpscr",
+ "fr0", "fr1", "fr2", "fr3", "fr4", "fr5", "fr6", "fr7",
+ "fr8", "fr9", "fr10", "fr11", "fr12", "fr13", "fr14", "fr15",
+ "ssr", "spc",
+ "r0b0", "r1b0", "r2b0", "r3b0", "r4b0", "r5b0", "r6b0", "r7b0",
+ "r0b1", "r1b1", "r2b1", "r3b1", "r4b1", "r5b1", "r6b1", "r7b1",
+ "dr0", "dr2", "dr4", "dr6", "dr8", "dr10", "dr12", "dr14",
+ "fv0", "fv4", "fv8", "fv12",
+ };
+ if (reg_nr < 0)
+ return NULL;
+ if (reg_nr >= (sizeof (register_names) / sizeof (*register_names)))
+ return NULL;
+ return register_names[reg_nr];
+}
+
static unsigned char *
-sh_breakpoint_from_pc (pcptr, lenptr)
- CORE_ADDR *pcptr;
- int *lenptr;
+sh_breakpoint_from_pc (CORE_ADDR *pcptr, int *lenptr)
{
/* 0xc3c3 is trapa #c3, and it works in big and little endian modes */
static unsigned char breakpoint[] = {0xc3, 0xc3};
#define IS_ADD_R3SP(x) ((x) == 0x3f3c)
/* FMOV.S FRm,@-Rn Rn-4-->Rn, FRm-->(Rn) 1111nnnnmmmm1011
- or
FMOV DRm,@-Rn Rn-8-->Rn, DRm-->(Rn) 1111nnnnmmm01011
- or
FMOV XDm,@-Rn Rn-8-->Rn, XDm-->(Rn) 1111nnnnmmm11011 */
#define IS_FMOV(x) (((x) & 0xf00f) == 0xf00b)
/* MOV Rm,Rn Rm-->Rn 0110nnnnmmmm0011
- or
MOV.L Rm,@(disp,Rn) Rm-->(dispx4+Rn) 0001nnnnmmmmdddd
- or
MOV.L Rm,@Rn Rm-->(Rn) 0010nnnnmmmm0010
where Rm is one of r4,r5,r6,r7 which are the argument registers. */
#define IS_ARG_MOV(x) \
/* Skip the prologue using the debug information. If this fails we'll
fall back on the 'guess' method below. */
static CORE_ADDR
-after_prologue (pc)
- CORE_ADDR pc;
+after_prologue (CORE_ADDR pc)
{
struct symtab_and_line sal;
CORE_ADDR func_addr, func_end;
where the prologue ends. Unfortunately this is not always
accurate. */
static CORE_ADDR
-skip_prologue_hard_way (start_pc)
- CORE_ADDR start_pc;
+skip_prologue_hard_way (CORE_ADDR start_pc)
{
CORE_ADDR here, end;
int updated_fp = 0;
}
static CORE_ADDR
-sh_skip_prologue (pc)
- CORE_ADDR pc;
+sh_skip_prologue (CORE_ADDR pc)
{
CORE_ADDR post_prologue_pc;
The return address is the value saved in the PR register + 4 */
static CORE_ADDR
-sh_saved_pc_after_call (frame)
- struct frame_info *frame;
+sh_saved_pc_after_call (struct frame_info *frame)
{
return (ADDR_BITS_REMOVE(read_register(PR_REGNUM)));
}
/* Should call_function allocate stack space for a struct return? */
static int
-sh_use_struct_convention (gcc_p, type)
- int gcc_p;
- struct type *type;
+sh_use_struct_convention (int gcc_p, struct type *type)
{
return (TYPE_LENGTH (type) > 1);
}
We store structs through a pointer passed in R0 */
static void
-sh_store_struct_return (addr, sp)
- CORE_ADDR addr;
- CORE_ADDR sp;
+sh_store_struct_return (CORE_ADDR addr, CORE_ADDR sp)
{
write_register (STRUCT_RETURN_REGNUM, (addr));
}
/* Disassemble an instruction. */
static int
-gdb_print_insn_sh (memaddr, info)
- bfd_vma memaddr;
- disassemble_info *info;
+gdb_print_insn_sh (bfd_vma memaddr, disassemble_info *info)
{
if (TARGET_BYTE_ORDER == BIG_ENDIAN)
return print_insn_sh (memaddr, info);
For us, the frame address is its stack pointer value, so we look up
the function prologue to determine the caller's sp value, and return it. */
static CORE_ADDR
-sh_frame_chain (frame)
- struct frame_info *frame;
+sh_frame_chain (struct frame_info *frame)
{
if (PC_IN_CALL_DUMMY (frame->pc, frame->frame, frame->frame))
return frame->frame; /* dummy frame same as caller's frame */
caller-saves registers for an inner frame. */
static CORE_ADDR
-sh_find_callers_reg (fi, regnum)
- struct frame_info *fi;
- int regnum;
+sh_find_callers_reg (struct frame_info *fi, int regnum)
{
for (; fi; fi = fi->next)
if (PC_IN_CALL_DUMMY (fi->pc, fi->frame, fi->frame))
ways in the stack frame. sp is even more special: the address we
return for it IS the sp for the next frame. */
static void
-sh_nofp_frame_init_saved_regs (fi)
- struct frame_info *fi;
+sh_nofp_frame_init_saved_regs (struct frame_info *fi)
{
int where[NUM_REGS];
int rn;
}
static void
-sh_fp_frame_init_saved_regs (fi)
- struct frame_info *fi;
+sh_fp_frame_init_saved_regs (struct frame_info *fi)
{
int where[NUM_REGS];
int rn;
/* Initialize the extra info saved in a FRAME */
static void
-sh_init_extra_frame_info (fromleaf, fi)
- int fromleaf;
- struct frame_info *fi;
+sh_init_extra_frame_info (int fromleaf, struct frame_info *fi)
{
fi->extra_info = (struct frame_extra_info *)
/* Extract from an array REGBUF containing the (raw) register state
the address in which a function should return its structure value,
as a CORE_ADDR (or an expression that can be used as one). */
-CORE_ADDR
-static sh_extract_struct_value_address (regbuf)
+static CORE_ADDR
+sh_extract_struct_value_address (regbuf)
char *regbuf;
{
return (extract_address ((regbuf), REGISTER_RAW_SIZE (0)));
}
static CORE_ADDR
-sh_frame_saved_pc (frame)
- struct frame_info *frame;
+sh_frame_saved_pc (struct frame_info *frame)
{
return ((frame)->extra_info->return_pc);
}
static CORE_ADDR
-sh_frame_args_address (fi)
- struct frame_info *fi;
+sh_frame_args_address (struct frame_info *fi)
{
return (fi)->frame;
}
static CORE_ADDR
-sh_frame_locals_address (fi)
- struct frame_info *fi;
+sh_frame_locals_address (struct frame_info *fi)
{
return (fi)->frame;
}
/* Discard from the stack the innermost frame,
restoring all saved registers. */
static void
-sh_pop_frame ()
+sh_pop_frame (void)
{
register struct frame_info *frame = get_current_frame ();
register CORE_ADDR fp;
to R7. */
static CORE_ADDR
-sh_push_arguments (nargs, args, sp, struct_return, struct_addr)
- int nargs;
- value_ptr *args;
- CORE_ADDR sp;
- unsigned char struct_return;
- CORE_ADDR struct_addr;
+sh_push_arguments (int nargs, struct value **args, CORE_ADDR sp,
+ int struct_return, CORE_ADDR struct_addr)
{
int stack_offset, stack_alloc;
int argreg;
Needed for targets where we don't actually execute a JSR/BSR instruction */
static CORE_ADDR
-sh_push_return_address (pc, sp)
- CORE_ADDR pc;
- CORE_ADDR sp;
+sh_push_return_address (CORE_ADDR pc, CORE_ADDR sp)
{
write_register (PR_REGNUM, CALL_DUMMY_ADDRESS ());
return sp;
#if 0
void
-sh_fix_call_dummy (dummy, pc, fun, nargs, args, type, gcc_p)
- char *dummy;
- CORE_ADDR pc;
- CORE_ADDR fun;
- int nargs;
- value_ptr *args;
- struct type *type;
- int gcc_p;
+sh_fix_call_dummy (char *dummy, CORE_ADDR pc, CORE_ADDR fun, int nargs,
+ value_ptr *args, struct type *type, int gcc_p)
{
*(unsigned long *) (dummy + 8) = fun;
}
containing the (raw) register state a function return value of type
TYPE, and copy that, in virtual format, into VALBUF. */
static void
-sh_extract_return_value (type, regbuf, valbuf)
- struct type *type;
- char *regbuf;
- char *valbuf;
+sh_extract_return_value (struct type *type, char *regbuf, char *valbuf)
{
int len = TYPE_LENGTH (type);
/* Print the registers in a form similar to the E7000 */
static void
-sh_generic_show_regs (args, from_tty)
- char *args;
- int from_tty;
+sh_generic_show_regs (void)
{
printf_filtered ("PC=%s SR=%08lx PR=%08lx MACH=%08lx MACHL=%08lx\n",
paddr (read_register (PC_REGNUM)),
}
static void
-sh3_show_regs (args, from_tty)
- char *args;
- int from_tty;
+sh3_show_regs (void)
{
printf_filtered ("PC=%s SR=%08lx PR=%08lx MACH=%08lx MACHL=%08lx\n",
paddr (read_register (PC_REGNUM)),
(long) read_register (15));
}
+
static void
-sh3e_show_regs (args, from_tty)
- char *args;
- int from_tty;
+sh3e_show_regs (void)
{
printf_filtered ("PC=%s SR=%08lx PR=%08lx MACH=%08lx MACHL=%08lx\n",
paddr (read_register (PC_REGNUM)),
}
static void
-sh3_dsp_show_regs (args, from_tty)
- char *args;
- int from_tty;
+sh3_dsp_show_regs (void)
{
printf_filtered ("PC=%s SR=%08lx PR=%08lx MACH=%08lx MACHL=%08lx\n",
paddr (read_register (PC_REGNUM)),
}
static void
-sh4_show_regs (args, from_tty)
- char *args;
- int from_tty;
+sh4_show_regs (void)
{
int pr = read_register (gdbarch_tdep (current_gdbarch)->FPSCR_REGNUM) & 0x80000;
printf_filtered ("PC=%s SR=%08lx PR=%08lx MACH=%08lx MACHL=%08lx\n",
}
static void
-sh_dsp_show_regs (args, from_tty)
- char *args;
- int from_tty;
+sh_dsp_show_regs (void)
{
printf_filtered ("PC=%s SR=%08lx PR=%08lx MACH=%08lx MACHL=%08lx\n",
paddr (read_register (PC_REGNUM)),
(long) read_register (gdbarch_tdep (current_gdbarch)->RE_REGNUM));
}
+void sh_show_regs_command (char *args, int from_tty)
+{
+ if (sh_show_regs)
+ (*sh_show_regs)();
+}
+
/* Index within `registers' of the first byte of the space for
register N. */
static int
-sh_register_byte (reg_nr)
- int reg_nr;
+sh_default_register_byte (int reg_nr)
{
return (reg_nr * 4);
}
+static int
+sh_sh4_register_byte (int reg_nr)
+{
+ if (reg_nr >= gdbarch_tdep (current_gdbarch)->DR0_REGNUM
+ && reg_nr <= gdbarch_tdep (current_gdbarch)->DR_LAST_REGNUM)
+ return (dr_reg_base_num (reg_nr) * 4);
+ else if (reg_nr >= gdbarch_tdep (current_gdbarch)->FV0_REGNUM
+ && reg_nr <= gdbarch_tdep (current_gdbarch)->FV_LAST_REGNUM)
+ return (fv_reg_base_num (reg_nr) * 4);
+ else
+ return (reg_nr * 4);
+}
+
/* Number of bytes of storage in the actual machine representation for
register REG_NR. */
static int
-sh_register_raw_size (reg_nr)
- int reg_nr;
+sh_default_register_raw_size (int reg_nr)
{
return 4;
}
+static int
+sh_sh4_register_raw_size (int reg_nr)
+{
+ if (reg_nr >= gdbarch_tdep (current_gdbarch)->DR0_REGNUM
+ && reg_nr <= gdbarch_tdep (current_gdbarch)->DR_LAST_REGNUM)
+ return 8;
+ else if (reg_nr >= gdbarch_tdep (current_gdbarch)->FV0_REGNUM
+ && reg_nr <= gdbarch_tdep (current_gdbarch)->FV_LAST_REGNUM)
+ return 16;
+ else
+ return 4;
+}
+
/* Number of bytes of storage in the program's representation
for register N. */
static int
-sh_register_virtual_size (reg_nr)
- int reg_nr;
+sh_register_virtual_size (int reg_nr)
{
return 4;
}
of data in register N. */
static struct type *
-sh_sh3e_register_virtual_type (reg_nr)
- int reg_nr;
+sh_sh3e_register_virtual_type (int reg_nr)
+{
+ if ((reg_nr >= FP0_REGNUM
+ && (reg_nr <= gdbarch_tdep (current_gdbarch)->FP_LAST_REGNUM))
+ || (reg_nr == gdbarch_tdep (current_gdbarch)->FPUL_REGNUM))
+ return builtin_type_float;
+ else
+ return builtin_type_int;
+}
+
+static struct type *
+sh_sh4_register_virtual_type (int reg_nr)
{
if ((reg_nr >= FP0_REGNUM
- && (reg_nr <= gdbarch_tdep (current_gdbarch)->FP15_REGNUM))
+ && (reg_nr <= gdbarch_tdep (current_gdbarch)->FP_LAST_REGNUM))
|| (reg_nr == gdbarch_tdep (current_gdbarch)->FPUL_REGNUM))
return builtin_type_float;
+ else if (reg_nr >= gdbarch_tdep (current_gdbarch)->DR0_REGNUM
+ && reg_nr <= gdbarch_tdep (current_gdbarch)->DR_LAST_REGNUM)
+ return builtin_type_double;
+ else if (reg_nr >= gdbarch_tdep (current_gdbarch)->FV0_REGNUM
+ && reg_nr <= gdbarch_tdep (current_gdbarch)->FV_LAST_REGNUM)
+ return sh_sh4_build_float_register_type (3);
else
return builtin_type_int;
}
static struct type *
-sh_default_register_virtual_type (reg_nr)
- int reg_nr;
+sh_sh4_build_float_register_type (int high)
+{
+ struct type *temp;
+
+ temp = create_range_type (NULL, builtin_type_int, 0, high);
+ return create_array_type (NULL, builtin_type_float, temp);
+}
+
+static struct type *
+sh_default_register_virtual_type (int reg_nr)
{
return builtin_type_int;
}
+/* 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
+ like this:
+ fr0 = 0x00 0x00 0x00 0x00 0x00 0xf0 0x3f
+ fr1 = 0x00 0x00 0x00 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
+ 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
+ floatformat_ieee_double_littlebyte_bigword (which is defined in
+ include/floatformat.h and libiberty/floatformat.c.
+
+ 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
+
+ The other pseudo registers (the FVs) also don't pose a problem
+ because they are stored as 4 individual FP elements. */
+
+int
+sh_sh4_register_convertible (int nr)
+{
+ if (TARGET_BYTE_ORDER == LITTLE_ENDIAN)
+ return (gdbarch_tdep (current_gdbarch)->DR0_REGNUM <= nr
+ && nr <= gdbarch_tdep (current_gdbarch)->DR_LAST_REGNUM);
+ else
+ return 0;
+}
+
+void
+sh_sh4_register_convert_to_virtual (int regnum, struct type *type,
+ char *from, char *to)
+{
+ if (regnum >= gdbarch_tdep (current_gdbarch)->DR0_REGNUM
+ && regnum <= gdbarch_tdep (current_gdbarch)->DR_LAST_REGNUM)
+ {
+ DOUBLEST val;
+ floatformat_to_doublest (&floatformat_ieee_double_littlebyte_bigword, from, &val);
+ store_floating(to, TYPE_LENGTH(type), val);
+ }
+ else
+ error("sh_register_convert_to_virtual called with non DR register number");
+}
+
+void
+sh_sh4_register_convert_to_raw (struct type *type, int regnum,
+ char *from, char *to)
+{
+ if (regnum >= gdbarch_tdep (current_gdbarch)->DR0_REGNUM
+ && regnum <= gdbarch_tdep (current_gdbarch)->DR_LAST_REGNUM)
+ {
+ DOUBLEST val = extract_floating (from, TYPE_LENGTH(type));
+ floatformat_from_doublest (&floatformat_ieee_double_littlebyte_bigword, &val, to);
+ }
+ else
+ error("sh_register_convert_to_raw called with non DR register number");
+}
+
+void
+sh_fetch_pseudo_register (int reg_nr)
+{
+ int base_regnum, portion;
+
+ if (!register_cached (reg_nr))
+ {
+ if (reg_nr >= gdbarch_tdep (current_gdbarch)->DR0_REGNUM
+ && reg_nr <= gdbarch_tdep (current_gdbarch)->DR_LAST_REGNUM)
+ {
+ base_regnum = dr_reg_base_num (reg_nr);
+
+ /* Read the real regs for which this one is an alias. */
+ for (portion = 0; portion < 2; portion++)
+ if (!register_cached (base_regnum + portion))
+ target_fetch_registers (base_regnum + portion);
+ }
+ else if (reg_nr >= gdbarch_tdep (current_gdbarch)->FV0_REGNUM
+ && reg_nr <= gdbarch_tdep (current_gdbarch)->FV_LAST_REGNUM)
+ {
+ base_regnum = fv_reg_base_num (reg_nr);
+
+ /* Read the real regs for which this one is an alias. */
+ for (portion = 0; portion < 4; portion++)
+ if (!register_cached (base_regnum + portion))
+ target_fetch_registers (base_regnum + portion);
+
+ }
+ register_valid [reg_nr] = 1;
+ }
+}
+
+void
+sh_store_pseudo_register (int reg_nr)
+{
+ int base_regnum, portion;
+
+ if (reg_nr >= gdbarch_tdep (current_gdbarch)->DR0_REGNUM
+ && reg_nr <= gdbarch_tdep (current_gdbarch)->DR_LAST_REGNUM)
+ {
+ base_regnum = dr_reg_base_num (reg_nr);
+
+ /* Write the real regs for which this one is an alias. */
+ for (portion = 0; portion < 2; portion++)
+ {
+ register_valid[base_regnum + portion] = 1;
+ target_store_registers (base_regnum + portion);
+ }
+ }
+ else if (reg_nr >= gdbarch_tdep (current_gdbarch)->FV0_REGNUM
+ && reg_nr <= gdbarch_tdep (current_gdbarch)->FV_LAST_REGNUM)
+ {
+ base_regnum = fv_reg_base_num (reg_nr);
+
+ /* Write the real regs for which this one is an alias. */
+ for (portion = 0; portion < 4; portion++)
+ {
+ register_valid[base_regnum + portion] = 1;
+ target_store_registers (base_regnum + portion);
+ }
+ }
+}
+
+static int
+fv_reg_base_num (int fv_regnum)
+{
+ int fp_regnum;
+
+ fp_regnum = FP0_REGNUM +
+ (fv_regnum - gdbarch_tdep (current_gdbarch)->FV0_REGNUM) * 4;
+ return fp_regnum;
+}
+
+static int
+dr_reg_base_num (int dr_regnum)
+{
+ int fp_regnum;
+
+ fp_regnum = FP0_REGNUM +
+ (dr_regnum - gdbarch_tdep (current_gdbarch)->DR0_REGNUM) * 2;
+ return fp_regnum;
+}
+
+static void
+do_fv_register_info (int fv_regnum)
+{
+ int first_fp_reg_num = fv_reg_base_num (fv_regnum);
+ printf_filtered ("fv%d\t0x%08x\t0x%08x\t0x%08x\t0x%08x\n",
+ fv_regnum - gdbarch_tdep (current_gdbarch)->FV0_REGNUM,
+ (int) read_register (first_fp_reg_num),
+ (int) read_register (first_fp_reg_num + 1),
+ (int) read_register (first_fp_reg_num + 2),
+ (int) read_register (first_fp_reg_num + 3));
+}
+
+static void
+do_dr_register_info (int dr_regnum)
+{
+ int first_fp_reg_num = dr_reg_base_num (dr_regnum);
+
+ printf_filtered ("dr%d\t0x%08x%08x\n",
+ dr_regnum - gdbarch_tdep (current_gdbarch)->DR0_REGNUM,
+ (int) read_register (first_fp_reg_num),
+ (int) read_register (first_fp_reg_num + 1));
+}
+
+static void
+sh_do_pseudo_register (int regnum)
+{
+ if (regnum < NUM_REGS || regnum >= NUM_REGS + NUM_PSEUDO_REGS)
+ internal_error ("Invalid pseudo register number %d\n", regnum);
+ else if (regnum >= NUM_REGS &&
+ regnum < gdbarch_tdep (current_gdbarch)->FV0_REGNUM)
+ do_dr_register_info (regnum);
+ else if (regnum >= gdbarch_tdep (current_gdbarch)->FV0_REGNUM &&
+ regnum <= gdbarch_tdep (current_gdbarch)->FV_LAST_REGNUM)
+ do_fv_register_info (regnum);
+}
+
+
+static void
+sh_do_fp_register (int regnum)
+{ /* do values for FP (float) regs */
+ char *raw_buffer;
+ double flt; /* double extracted from raw hex data */
+ int inv;
+ int j;
+
+ /* Allocate space for the float. */
+ raw_buffer = (char *) alloca (REGISTER_RAW_SIZE (FP0_REGNUM));
+
+ /* Get the data in raw format. */
+ if (read_relative_register_raw_bytes (regnum, raw_buffer))
+ error ("can't read register %d (%s)", regnum, REGISTER_NAME (regnum));
+
+ /* Get the register as a number */
+ flt = unpack_double (builtin_type_float, raw_buffer, &inv);
+
+ /* Print the name and some spaces. */
+ fputs_filtered (REGISTER_NAME (regnum), gdb_stdout);
+ print_spaces_filtered (15 - strlen (REGISTER_NAME (regnum)), gdb_stdout);
+
+ /* Print the value. */
+ printf_filtered (inv ? "<invalid float>" : "%-10.9g", flt);
+
+ /* Print the fp register as hex. */
+ printf_filtered ("\t(raw 0x");
+ for (j = 0; j < REGISTER_RAW_SIZE (regnum); j++)
+ {
+ register int idx = TARGET_BYTE_ORDER == BIG_ENDIAN ? j
+ : REGISTER_RAW_SIZE (regnum) - 1 - j;
+ printf_filtered ("%02x", (unsigned char) raw_buffer[idx]);
+ }
+ printf_filtered (")");
+ printf_filtered ("\n");
+}
+
+static void
+sh_do_register (int regnum)
+{
+ char raw_buffer[MAX_REGISTER_RAW_SIZE];
+
+ fputs_filtered (REGISTER_NAME (regnum), gdb_stdout);
+ print_spaces_filtered (15 - strlen (REGISTER_NAME (regnum)), gdb_stdout);
+
+ /* Get the data in raw format. */
+ if (read_relative_register_raw_bytes (regnum, raw_buffer))
+ printf_filtered ("*value not available*\n");
+
+ val_print (REGISTER_VIRTUAL_TYPE (regnum), raw_buffer, 0, 0,
+ gdb_stdout, 'x', 1, 0, Val_pretty_default);
+ printf_filtered ("\t");
+ val_print (REGISTER_VIRTUAL_TYPE (regnum), raw_buffer, 0, 0,
+ gdb_stdout, 0, 1, 0, Val_pretty_default);
+ printf_filtered ("\n");
+}
+
+static void
+sh_print_register (int regnum)
+{
+ if (regnum < 0 || regnum >= NUM_REGS + NUM_PSEUDO_REGS)
+ internal_error ("Invalid register number %d\n", regnum);
+
+ else if (regnum > 0 && regnum < NUM_REGS)
+ {
+ if (TYPE_CODE (REGISTER_VIRTUAL_TYPE (regnum)) == TYPE_CODE_FLT)
+ sh_do_fp_register (regnum); /* FP regs */
+ else
+ sh_do_register (regnum); /* All other regs */
+ }
+
+ else if (regnum < NUM_REGS + NUM_PSEUDO_REGS)
+ sh_do_pseudo_register (regnum);
+}
+
+void
+sh_do_registers_info (int regnum, int fpregs)
+{
+ if (regnum != -1) /* do one specified register */
+ {
+ if (*(REGISTER_NAME (regnum)) == '\0')
+ error ("Not a valid register for the current processor type");
+
+ sh_print_register (regnum);
+ }
+ else
+ /* do all (or most) registers */
+ {
+ regnum = 0;
+ while (regnum < NUM_REGS)
+ {
+ /* If the register name is empty, it is undefined for this
+ processor, so don't display anything. */
+ if (REGISTER_NAME (regnum) == NULL
+ || *(REGISTER_NAME (regnum)) == '\0')
+ {
+ regnum++;
+ continue;
+ }
+
+ if (TYPE_CODE (REGISTER_VIRTUAL_TYPE (regnum)) == TYPE_CODE_FLT)
+ {
+ if (fpregs)
+ {
+ /* true for "INFO ALL-REGISTERS" command */
+ sh_do_fp_register (regnum); /* FP regs */
+ regnum ++;
+ }
+ else
+ regnum += (gdbarch_tdep (current_gdbarch)->FP_LAST_REGNUM - FP0_REGNUM); /* skip FP regs */
+ }
+ else
+ {
+ sh_do_register (regnum); /* All other regs */
+ regnum++;
+ }
+ }
+
+ if (fpregs)
+ while (regnum < NUM_REGS + NUM_PSEUDO_REGS)
+ {
+ sh_do_pseudo_register (regnum);
+ regnum++;
+ }
+ }
+}
+
+#ifdef SVR4_SHARED_LIBS
+
+/* Fetch (and possibly build) an appropriate link_map_offsets structure
+ for native i386 linux targets using the struct offsets defined in
+ link.h (but without actual reference to that file).
+
+ This makes it possible to access i386-linux shared libraries from
+ a gdb that was not built on an i386-linux host (for cross debugging).
+ */
+
+struct link_map_offsets *
+sh_linux_svr4_fetch_link_map_offsets (void)
+{
+ static struct link_map_offsets lmo;
+ static struct link_map_offsets *lmp = 0;
+
+ if (lmp == 0)
+ {
+ lmp = &lmo;
+
+ lmo.r_debug_size = 8; /* 20 not actual size but all we need */
+
+ lmo.r_map_offset = 4;
+ lmo.r_map_size = 4;
+
+ lmo.link_map_size = 20; /* 552 not actual size but all we need */
+
+ lmo.l_addr_offset = 0;
+ lmo.l_addr_size = 4;
+
+ lmo.l_name_offset = 4;
+ lmo.l_name_size = 4;
+
+ lmo.l_next_offset = 12;
+ lmo.l_next_size = 4;
+
+ lmo.l_prev_offset = 16;
+ lmo.l_prev_size = 4;
+ }
+
+ return lmp;
+}
+#endif /* SVR4_SHARED_LIBS */
+
static gdbarch_init_ftype sh_gdbarch_init;
static struct gdbarch *
-sh_gdbarch_init (info, arches)
- struct gdbarch_info info;
- struct gdbarch_list *arches;
+sh_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
{
static LONGEST sh_call_dummy_words[] = {0};
struct gdbarch *gdbarch;
tdep->FPUL_REGNUM = -1;
tdep->FPSCR_REGNUM = -1;
tdep->DSR_REGNUM = -1;
- tdep->FP15_REGNUM = -1;
+ tdep->FP_LAST_REGNUM = -1;
tdep->A0G_REGNUM = -1;
tdep->A0_REGNUM = -1;
tdep->A1G_REGNUM = -1;
tdep->RE_REGNUM = -1;
tdep->SSR_REGNUM = -1;
tdep->SPC_REGNUM = -1;
+ tdep->DR0_REGNUM = -1;
+ tdep->DR_LAST_REGNUM = -1;
+ tdep->FV0_REGNUM = -1;
+ tdep->FV_LAST_REGNUM = -1;
set_gdbarch_fp0_regnum (gdbarch, -1);
+ set_gdbarch_num_pseudo_regs (gdbarch, 0);
+ set_gdbarch_max_register_raw_size (gdbarch, 4);
+ set_gdbarch_max_register_virtual_size (gdbarch, 4);
+ print_sh_insn = gdb_print_insn_sh;
switch (info.bfd_arch_info->mach)
{
sh_store_return_value = sh_default_store_return_value;
sh_register_virtual_type = sh_default_register_virtual_type;
set_gdbarch_frame_init_saved_regs (gdbarch, sh_nofp_frame_init_saved_regs);
+ set_gdbarch_register_raw_size (gdbarch, sh_default_register_raw_size);
+ set_gdbarch_register_virtual_size (gdbarch, sh_default_register_raw_size);
+ set_gdbarch_register_byte (gdbarch, sh_default_register_byte);
break;
case bfd_mach_sh2:
sh_register_name = sh_sh_register_name;
sh_store_return_value = sh_default_store_return_value;
sh_register_virtual_type = sh_default_register_virtual_type;
set_gdbarch_frame_init_saved_regs (gdbarch, sh_nofp_frame_init_saved_regs);
+ set_gdbarch_register_raw_size (gdbarch, sh_default_register_raw_size);
+ set_gdbarch_register_virtual_size (gdbarch, sh_default_register_raw_size);
+ set_gdbarch_register_byte (gdbarch, sh_default_register_byte);
break;
case bfd_mach_sh_dsp:
sh_register_name = sh_sh_dsp_register_name;
sh_store_return_value = sh_default_store_return_value;
sh_register_virtual_type = sh_default_register_virtual_type;
set_gdbarch_frame_init_saved_regs (gdbarch, sh_nofp_frame_init_saved_regs);
+ set_gdbarch_register_raw_size (gdbarch, sh_default_register_raw_size);
+ set_gdbarch_register_virtual_size (gdbarch, sh_default_register_raw_size);
+ set_gdbarch_register_byte (gdbarch, sh_default_register_byte);
tdep->DSR_REGNUM = 24;
tdep->A0G_REGNUM = 25;
tdep->A0_REGNUM = 26;
sh_store_return_value = sh_default_store_return_value;
sh_register_virtual_type = sh_default_register_virtual_type;
set_gdbarch_frame_init_saved_regs (gdbarch, sh_nofp_frame_init_saved_regs);
+ set_gdbarch_register_raw_size (gdbarch, sh_default_register_raw_size);
+ set_gdbarch_register_virtual_size (gdbarch, sh_default_register_raw_size);
+ set_gdbarch_register_byte (gdbarch, sh_default_register_byte);
tdep->SSR_REGNUM = 41;
tdep->SPC_REGNUM = 42;
break;
sh_store_return_value = sh3e_sh4_store_return_value;
sh_register_virtual_type = sh_sh3e_register_virtual_type;
set_gdbarch_frame_init_saved_regs (gdbarch, sh_fp_frame_init_saved_regs);
+ set_gdbarch_register_raw_size (gdbarch, sh_default_register_raw_size);
+ set_gdbarch_register_virtual_size (gdbarch, sh_default_register_raw_size);
+ set_gdbarch_register_byte (gdbarch, sh_default_register_byte);
set_gdbarch_fp0_regnum (gdbarch, 25);
tdep->FPUL_REGNUM = 23;
tdep->FPSCR_REGNUM = 24;
- tdep->FP15_REGNUM = 40;
+ tdep->FP_LAST_REGNUM = 40;
tdep->SSR_REGNUM = 41;
tdep->SPC_REGNUM = 42;
break;
sh_store_return_value = sh_default_store_return_value;
sh_register_virtual_type = sh_default_register_virtual_type;
set_gdbarch_frame_init_saved_regs (gdbarch, sh_nofp_frame_init_saved_regs);
+ set_gdbarch_register_raw_size (gdbarch, sh_default_register_raw_size);
+ set_gdbarch_register_virtual_size (gdbarch, sh_default_register_raw_size);
+ set_gdbarch_register_byte (gdbarch, sh_default_register_byte);
tdep->DSR_REGNUM = 24;
tdep->A0G_REGNUM = 25;
tdep->A0_REGNUM = 26;
tdep->SPC_REGNUM = 42;
break;
case bfd_mach_sh4:
- sh_register_name = sh_generic_register_name;
- sh_show_regs = sh_generic_show_regs;
+ sh_register_name = sh_sh4_register_name;
+ sh_show_regs = sh4_show_regs;
sh_store_return_value = sh3e_sh4_store_return_value;
- sh_register_virtual_type = sh_sh3e_register_virtual_type;
+ sh_register_virtual_type = sh_sh4_register_virtual_type;
set_gdbarch_frame_init_saved_regs (gdbarch, sh_fp_frame_init_saved_regs);
set_gdbarch_fp0_regnum (gdbarch, 25);
+ set_gdbarch_register_raw_size (gdbarch, sh_sh4_register_raw_size);
+ set_gdbarch_register_virtual_size (gdbarch, sh_sh4_register_raw_size);
+ set_gdbarch_register_byte (gdbarch, sh_sh4_register_byte);
+ set_gdbarch_num_pseudo_regs (gdbarch, 12);
+ set_gdbarch_max_register_raw_size (gdbarch, 4 * 4);
+ set_gdbarch_max_register_virtual_size (gdbarch, 4 * 4);
+ set_gdbarch_register_convert_to_raw (gdbarch, sh_sh4_register_convert_to_raw);
+ set_gdbarch_register_convert_to_virtual (gdbarch, sh_sh4_register_convert_to_virtual);
+ set_gdbarch_register_convertible (gdbarch, sh_sh4_register_convertible);
tdep->FPUL_REGNUM = 23;
tdep->FPSCR_REGNUM = 24;
- tdep->FP15_REGNUM = 40;
+ tdep->FP_LAST_REGNUM = 40;
tdep->SSR_REGNUM = 41;
tdep->SPC_REGNUM = 42;
+ tdep->DR0_REGNUM = 59;
+ tdep->DR_LAST_REGNUM = 66;
+ tdep->FV0_REGNUM = 67;
+ tdep->FV_LAST_REGNUM = 70;
break;
default:
sh_register_name = sh_generic_register_name;
sh_store_return_value = sh_default_store_return_value;
sh_register_virtual_type = sh_default_register_virtual_type;
set_gdbarch_frame_init_saved_regs (gdbarch, sh_nofp_frame_init_saved_regs);
+ set_gdbarch_register_raw_size (gdbarch, sh_default_register_raw_size);
+ set_gdbarch_register_virtual_size (gdbarch, sh_default_register_raw_size);
+ set_gdbarch_register_byte (gdbarch, sh_default_register_byte);
break;
}
set_gdbarch_register_name (gdbarch, sh_register_name);
set_gdbarch_register_size (gdbarch, 4);
set_gdbarch_register_bytes (gdbarch, NUM_REGS * 4);
- set_gdbarch_register_byte (gdbarch, sh_register_byte);
- set_gdbarch_register_raw_size (gdbarch, sh_register_raw_size);
- set_gdbarch_max_register_raw_size (gdbarch, 4);
- set_gdbarch_register_virtual_size (gdbarch, sh_register_virtual_size);
- set_gdbarch_max_register_virtual_size (gdbarch, 4);
set_gdbarch_register_virtual_type (gdbarch, sh_register_virtual_type);
set_gdbarch_ptr_bit (gdbarch, 4 * TARGET_CHAR_BIT);
set_gdbarch_function_start_offset (gdbarch, 0);
set_gdbarch_breakpoint_from_pc (gdbarch, sh_breakpoint_from_pc);
+ set_gdbarch_fetch_pseudo_register (gdbarch, sh_fetch_pseudo_register);
+ set_gdbarch_store_pseudo_register (gdbarch, sh_store_pseudo_register);
set_gdbarch_frame_args_skip (gdbarch, 0);
set_gdbarch_frameless_function_invocation (gdbarch, frameless_look_for_prologue);
set_gdbarch_frame_chain (gdbarch, sh_frame_chain);
}
void
-_initialize_sh_tdep ()
+_initialize_sh_tdep (void)
{
struct cmd_list_element *c;
register_gdbarch_init (bfd_arch_sh, sh_gdbarch_init);
- tm_print_insn = gdb_print_insn_sh;
+ tm_print_insn = print_sh_insn;
- add_com ("regs", class_vars, sh_show_regs, "Print all registers");
+ add_com ("regs", class_vars, sh_show_regs_command, "Print all registers");
}
projects / deliverable / binutils-gdb.git / blobdiff