X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=gdb%2Fh8300-tdep.c;h=0e80ec8c30626dd7db912dbd5cea68dbf9391faf;hb=945e0f82dad31db89a107b496532886fe215c011;hp=1d5255380212887497847ec7622dd264a5997fbf;hpb=94afd7a6d348a66ea3fb35fdb8234b050ec8c779;p=deliverable%2Fbinutils-gdb.git diff --git a/gdb/h8300-tdep.c b/gdb/h8300-tdep.c index 1d52553802..0e80ec8c30 100644 --- a/gdb/h8300-tdep.c +++ b/gdb/h8300-tdep.c @@ -1,7 +1,6 @@ /* Target-machine dependent code for Renesas H8/300, for GDB. - Copyright (C) 1988, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1998, 1999, - 2000, 2001, 2002, 2003, 2005, 2007, 2008 Free Software Foundation, Inc. + Copyright (C) 1988-2016 Free Software Foundation, Inc. This file is part of GDB. @@ -29,7 +28,6 @@ #include "regcache.h" #include "gdbcore.h" #include "objfiles.h" -#include "gdb_assert.h" #include "dis-asm.h" #include "dwarf2-frame.h" #include "frame-base.h" @@ -70,7 +68,7 @@ struct h8300_frame_cache CORE_ADDR sp_offset; CORE_ADDR pc; - /* Flag showing that a frame has been created in the prologue code. */ + /* Flag showing that a frame has been created in the prologue code. */ int uses_fp; /* Saved registers. */ @@ -146,7 +144,7 @@ h8300_init_frame_cache (struct gdbarch *gdbarch, #define IS_MOVW_Rn16_SP(x) (((x) & 0xfff0) == 0x6fe0) #define IS_MOVW_EXT(x) ((x) == 0x78e0) #define IS_MOVW_Rn24_SP(x) (((x) & 0xfff0) == 0x6ba0) -/* Same instructions as mov.w, just prefixed with 0x0100 */ +/* Same instructions as mov.w, just prefixed with 0x0100. */ #define IS_MOVL_PRE(x) ((x) == 0x0100) #define IS_MOVL_Rn16_SP(x) (((x) & 0xfff0) == 0x6fe0) #define IS_MOVL_EXT(x) ((x) == 0x78e0) @@ -177,9 +175,10 @@ 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 */ @@ -189,14 +188,16 @@ 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) @@ -207,14 +208,15 @@ 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) @@ -223,22 +225,22 @@ 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) @@ -286,9 +288,11 @@ 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; @@ -297,7 +301,7 @@ 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)) { @@ -311,7 +315,7 @@ 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; @@ -321,7 +325,7 @@ 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; @@ -334,12 +338,12 @@ 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)) @@ -349,9 +353,9 @@ 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; @@ -374,7 +378,7 @@ 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; @@ -388,7 +392,7 @@ 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 @@ -412,7 +416,7 @@ 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; @@ -424,12 +428,11 @@ h8300_frame_cache (struct frame_info *this_frame, void **this_cache) { struct gdbarch *gdbarch = get_frame_arch (this_frame); struct h8300_frame_cache *cache; - char buf[4]; int i; CORE_ADDR current_pc; if (*this_cache) - return *this_cache; + return (struct h8300_frame_cache *) *this_cache; cache = FRAME_OBSTACK_ZALLOC (struct h8300_frame_cache); h8300_init_frame_cache (gdbarch, cache); @@ -450,7 +453,7 @@ 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) { @@ -519,6 +522,7 @@ h8300_frame_prev_register (struct frame_info *this_frame, void **this_cache, static const struct frame_unwind h8300_frame_unwind = { NORMAL_FRAME, + default_frame_unwind_stop_reason, h8300_frame_this_id, h8300_frame_prev_register, NULL, @@ -557,7 +561,7 @@ 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. */ @@ -634,6 +638,7 @@ 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; @@ -659,13 +664,15 @@ h8300_push_dummy_call (struct gdbarch *gdbarch, struct value *function, for (argument = 0; argument < nargs; argument++) { + struct cleanup *back_to; struct type *type = value_type (args[argument]); int len = TYPE_LENGTH (type); char *contents = (char *) value_contents (args[argument]); /* Pad the argument appropriately. */ int padded_len = align_up (len, wordsize); - gdb_byte *padded = alloca (padded_len); + gdb_byte *padded = (gdb_byte *) xmalloc (padded_len); + back_to = make_cleanup (xfree, padded); memset (padded, 0, padded_len); memcpy (len < wordsize ? padded + padded_len - len : padded, @@ -690,15 +697,15 @@ h8300_push_dummy_call (struct gdbarch *gdbarch, struct value *function, else { /* Heavens to Betsy --- it's really going in registers! - It would be nice if we could use write_register_bytes - here, but on the h8/300s, there are gaps between - the registers in the register file. */ + Note that on the h8/300s, there are gaps between the + registers in the register file. */ int offset; 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); } } @@ -713,11 +720,13 @@ h8300_push_dummy_call (struct gdbarch *gdbarch, struct value *function, subsequent arguments go on the stack. */ reg = E_ARGLAST_REGNUM + 1; } + + do_cleanups (back_to); } /* 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); @@ -733,8 +742,10 @@ h8300_push_dummy_call (struct gdbarch *gdbarch, struct value *function, static void h8300_extract_return_value (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 len = TYPE_LENGTH (type); ULONGEST c, addr; @@ -743,24 +754,24 @@ 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 (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 { - error ("I don't know how this 8 byte value is returned."); + error (_("I don't know how this 8 byte value is returned.")); } break; } @@ -768,40 +779,41 @@ h8300_extract_return_value (struct type *type, struct regcache *regcache, static void h8300h_extract_return_value (struct type *type, struct regcache *regcache, - void *valbuf) + gdb_byte *valbuf) { - int len = TYPE_LENGTH (type); - ULONGEST c, addr; + struct gdbarch *gdbarch = get_regcache_arch (regcache); + enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); + ULONGEST c; - switch (len) + switch (TYPE_LENGTH (type)) { case 1: case 2: case 4: regcache_cooked_read_unsigned (regcache, E_RET0_REGNUM, &c); - store_unsigned_integer (valbuf, len, c); + store_unsigned_integer (valbuf, TYPE_LENGTH (type), 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 (valbuf + 4, 4, byte_order, c); } else { - error ("I don't know how this 8 byte value is returned."); + error (_("I don't know how this 8 byte value is returned.")); } break; } } -int +static int h8300_use_struct_convention (struct type *value_type) { /* Types of 1, 2 or 4 bytes are returned in R0/R1, everything else on the - stack. */ + stack. */ if (TYPE_CODE (value_type) == TYPE_CODE_STRUCT || TYPE_CODE (value_type) == TYPE_CODE_UNION) @@ -811,11 +823,11 @@ h8300_use_struct_convention (struct type *value_type) || TYPE_LENGTH (value_type) == 4); } -int +static int h8300h_use_struct_convention (struct type *value_type) { /* Types of 1, 2 or 4 bytes are returned in R0, INT types of 8 bytes are - returned in R0/R1, everything else on the stack. */ + returned in R0/R1, everything else on the stack. */ if (TYPE_CODE (value_type) == TYPE_CODE_STRUCT || TYPE_CODE (value_type) == TYPE_CODE_UNION) return 1; @@ -832,48 +844,51 @@ h8300h_use_struct_convention (struct type *value_type) static void h8300_store_return_value (struct type *type, struct regcache *regcache, - const void *valbuf) + const gdb_byte *valbuf) { - int len = TYPE_LENGTH (type); + struct gdbarch *gdbarch = get_regcache_arch (regcache); + enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); ULONGEST val; - switch (len) + switch (TYPE_LENGTH (type)) { case 1: - case 2: /* short... */ - val = extract_unsigned_integer (valbuf, len); + case 2: /* short... */ + val = extract_unsigned_integer (valbuf, TYPE_LENGTH (type), 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, TYPE_LENGTH (type), byte_order); regcache_cooked_write_unsigned (regcache, E_RET0_REGNUM, (val >> 16) & 0xffff); regcache_cooked_write_unsigned (regcache, E_RET1_REGNUM, val & 0xffff); break; - case 8: /* long long, double and long double are all defined - as 4 byte types so far so this shouldn't happen. */ - error ("I don't know how to return an 8 byte value."); + case 8: /* long long, double and long double + are all defined as 4 byte types so + far so this shouldn't happen. */ + error (_("I don't know how to return an 8 byte value.")); break; } } static void h8300h_store_return_value (struct type *type, struct regcache *regcache, - const void *valbuf) + const gdb_byte *valbuf) { - int len = TYPE_LENGTH (type); + struct gdbarch *gdbarch = get_regcache_arch (regcache); + enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); ULONGEST val; - switch (len) + switch (TYPE_LENGTH (type)) { case 1: case 2: case 4: /* long, float */ - val = extract_unsigned_integer (valbuf, len); + val = extract_unsigned_integer (valbuf, TYPE_LENGTH (type), 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, TYPE_LENGTH (type), byte_order); regcache_cooked_write_unsigned (regcache, E_RET0_REGNUM, (val >> 32) & 0xffffffff); regcache_cooked_write_unsigned (regcache, E_RET1_REGNUM, @@ -883,7 +898,7 @@ h8300h_store_return_value (struct type *type, struct regcache *regcache, } static enum return_value_convention -h8300_return_value (struct gdbarch *gdbarch, struct type *func_type, +h8300_return_value (struct gdbarch *gdbarch, struct value *function, struct type *type, struct regcache *regcache, gdb_byte *readbuf, const gdb_byte *writebuf) { @@ -897,7 +912,7 @@ h8300_return_value (struct gdbarch *gdbarch, struct type *func_type, } static enum return_value_convention -h8300h_return_value (struct gdbarch *gdbarch, struct type *func_type, +h8300h_return_value (struct gdbarch *gdbarch, struct value *function, struct type *type, struct regcache *regcache, gdb_byte *readbuf, const gdb_byte *writebuf) { @@ -920,13 +935,27 @@ h8300h_return_value (struct gdbarch *gdbarch, struct type *func_type, return RETURN_VALUE_REGISTER_CONVENTION; } -static struct cmd_list_element *setmachinelist; +/* Implementation of 'register_sim_regno' gdbarch method. */ + +static int +h8300_register_sim_regno (struct gdbarch *gdbarch, int regnum) +{ + /* Only makes sense to supply raw registers. */ + gdb_assert (regnum >= 0 && regnum < gdbarch_num_regs (gdbarch)); + + /* We hide the raw ccr from the user by making it nameless. Because + the default register_sim_regno hook returns + LEGACY_SIM_REGNO_IGNORE for unnamed registers, we need to + override it. The sim register numbering is compatible with + gdb's. */ + return regnum; +} static const char * h8300_register_name (struct gdbarch *gdbarch, int regno) { /* The register names change depending on which h8300 processor - type is selected. */ + type is selected. */ static char *register_names[] = { "r0", "r1", "r2", "r3", "r4", "r5", "r6", "sp", "", "pc", "cycles", "tick", "inst", @@ -935,7 +964,8 @@ h8300_register_name (struct gdbarch *gdbarch, int regno) if (regno < 0 || regno >= (sizeof (register_names) / sizeof (*register_names))) internal_error (__FILE__, __LINE__, - "h8300_register_name: illegal register number %d", regno); + _("h8300_register_name: illegal register number %d"), + regno); else return register_names[regno]; } @@ -952,7 +982,7 @@ h8300s_register_name (struct gdbarch *gdbarch, int regno) if (regno < 0 || regno >= (sizeof (register_names) / sizeof (*register_names))) internal_error (__FILE__, __LINE__, - "h8300s_register_name: illegal register number %d", + _("h8300s_register_name: illegal register number %d"), regno); else return register_names[regno]; @@ -970,7 +1000,7 @@ h8300sx_register_name (struct gdbarch *gdbarch, int regno) if (regno < 0 || regno >= (sizeof (register_names) / sizeof (*register_names))) internal_error (__FILE__, __LINE__, - "h8300sx_register_name: illegal register number %d", + _("h8300sx_register_name: illegal register number %d"), regno); else return register_names[regno]; @@ -1106,40 +1136,81 @@ h8300_register_type (struct gdbarch *gdbarch, int regno) if (regno < 0 || regno >= gdbarch_num_regs (gdbarch) + gdbarch_num_pseudo_regs (gdbarch)) internal_error (__FILE__, __LINE__, - "h8300_register_type: illegal register number %d", regno); + _("h8300_register_type: illegal register number %d"), + regno); else { switch (regno) { case E_PC_REGNUM: - return builtin_type_void_func_ptr; + return builtin_type (gdbarch)->builtin_func_ptr; case E_SP_REGNUM: case E_FP_REGNUM: - return builtin_type_void_data_ptr; + return builtin_type (gdbarch)->builtin_data_ptr; default: if (regno == E_PSEUDO_CCR_REGNUM (gdbarch)) - return builtin_type_uint8; + return builtin_type (gdbarch)->builtin_uint8; else if (regno == E_PSEUDO_EXR_REGNUM (gdbarch)) - return builtin_type_uint8; + return builtin_type (gdbarch)->builtin_uint8; else if (is_h8300hmode (gdbarch)) - return builtin_type_int32; + return builtin_type (gdbarch)->builtin_int32; else - return builtin_type_int16; + return builtin_type (gdbarch)->builtin_int16; } } } +/* Helpers for h8300_pseudo_register_read. We expose ccr/exr as + pseudo-registers to users with smaller sizes than the corresponding + raw registers. These helpers extend/narrow the values. */ + +static enum register_status +pseudo_from_raw_register (struct gdbarch *gdbarch, struct regcache *regcache, + gdb_byte *buf, int pseudo_regno, int raw_regno) +{ + enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); + enum register_status status; + ULONGEST val; + + status = regcache_raw_read_unsigned (regcache, raw_regno, &val); + if (status == REG_VALID) + store_unsigned_integer (buf, + register_size (gdbarch, pseudo_regno), + byte_order, val); + return status; +} + +/* See pseudo_from_raw_register. */ + static void +raw_from_pseudo_register (struct gdbarch *gdbarch, struct regcache *regcache, + const gdb_byte *buf, int raw_regno, int pseudo_regno) +{ + enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); + ULONGEST val; + + val = extract_unsigned_integer (buf, register_size (gdbarch, pseudo_regno), + byte_order); + regcache_raw_write_unsigned (regcache, raw_regno, val); +} + +static enum register_status h8300_pseudo_register_read (struct gdbarch *gdbarch, struct regcache *regcache, int regno, gdb_byte *buf) { if (regno == E_PSEUDO_CCR_REGNUM (gdbarch)) - regcache_raw_read (regcache, E_CCR_REGNUM, buf); + { + return pseudo_from_raw_register (gdbarch, regcache, buf, + regno, E_CCR_REGNUM); + } else if (regno == E_PSEUDO_EXR_REGNUM (gdbarch)) - regcache_raw_read (regcache, E_EXR_REGNUM, buf); + { + return pseudo_from_raw_register (gdbarch, regcache, buf, + regno, E_EXR_REGNUM); + } else - regcache_raw_read (regcache, regno, buf); + return regcache_raw_read (regcache, regno, buf); } static void @@ -1148,9 +1219,9 @@ h8300_pseudo_register_write (struct gdbarch *gdbarch, const gdb_byte *buf) { if (regno == E_PSEUDO_CCR_REGNUM (gdbarch)) - regcache_raw_write (regcache, E_CCR_REGNUM, buf); + raw_from_pseudo_register (gdbarch, regcache, buf, E_CCR_REGNUM, regno); else if (regno == E_PSEUDO_EXR_REGNUM (gdbarch)) - regcache_raw_write (regcache, E_EXR_REGNUM, buf); + raw_from_pseudo_register (gdbarch, regcache, buf, E_EXR_REGNUM, regno); else regcache_raw_write (regcache, regno, buf); } @@ -1173,7 +1244,7 @@ h8300s_dbg_reg_to_regnum (struct gdbarch *gdbarch, int regno) return regno; } -const static unsigned char * +static const unsigned char * h8300_breakpoint_from_pc (struct gdbarch *gdbarch, CORE_ADDR *pcptr, int *lenptr) { @@ -1184,14 +1255,6 @@ h8300_breakpoint_from_pc (struct gdbarch *gdbarch, CORE_ADDR *pcptr, return breakpoint; } -static void -h8300_print_float_info (struct gdbarch *gdbarch, struct ui_file *file, - struct frame_info *frame, const char *args) -{ - fprintf_filtered (file, "\ -No floating-point info available for this processor.\n"); -} - static struct gdbarch * h8300_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches) { @@ -1203,7 +1266,7 @@ h8300_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches) return arches->gdbarch; #if 0 - tdep = (struct gdbarch_tdep *) xmalloc (sizeof (struct gdbarch_tdep)); + tdep = XNEW (struct gdbarch_tdep); #endif if (info.bfd_arch_info->arch != bfd_arch_h8300) @@ -1211,6 +1274,8 @@ h8300_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches) gdbarch = gdbarch_alloc (&info, 0); + set_gdbarch_register_sim_regno (gdbarch, h8300_register_sim_regno); + switch (info.bfd_arch_info->mach) { case bfd_mach_h8300: @@ -1301,7 +1366,6 @@ h8300_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches) set_gdbarch_pc_regnum (gdbarch, E_PC_REGNUM); set_gdbarch_register_type (gdbarch, h8300_register_type); set_gdbarch_print_registers_info (gdbarch, h8300_print_registers_info); - set_gdbarch_print_float_info (gdbarch, h8300_print_float_info); /* * Frame Info @@ -1317,7 +1381,7 @@ h8300_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches) /* * Miscelany */ - /* Stack grows up. */ + /* Stack grows up. */ set_gdbarch_inner_than (gdbarch, core_addr_lessthan); set_gdbarch_breakpoint_from_pc (gdbarch, h8300_breakpoint_from_pc); @@ -1328,7 +1392,9 @@ h8300_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches) set_gdbarch_long_bit (gdbarch, 4 * TARGET_CHAR_BIT); set_gdbarch_long_long_bit (gdbarch, 8 * TARGET_CHAR_BIT); set_gdbarch_double_bit (gdbarch, 4 * TARGET_CHAR_BIT); + set_gdbarch_double_format (gdbarch, floatformats_ieee_single); set_gdbarch_long_double_bit (gdbarch, 4 * TARGET_CHAR_BIT); + set_gdbarch_long_double_format (gdbarch, floatformats_ieee_single); set_gdbarch_believe_pcc_promotion (gdbarch, 1); @@ -1340,7 +1406,7 @@ h8300_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches) } -extern initialize_file_ftype _initialize_h8300_tdep; /* -Wmissing-prototypes */ +extern initialize_file_ftype _initialize_h8300_tdep; /* -Wmissing-prototypes */ void _initialize_h8300_tdep (void)