X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=gdb%2Frx-tdep.c;h=94d57913a316e18d5df6410138d981a40fd5d6a6;hb=15146ff7370d5abad01dbecfacb0bf0e66a93cd6;hp=aa44f7adc54601a70322d3e89326023a42d2b24f;hpb=32d0add0a654c1204ab71dc8a55d9374538c4b33;p=external%2Fbinutils.git diff --git a/gdb/rx-tdep.c b/gdb/rx-tdep.c index aa44f7a..94d5791 100644 --- a/gdb/rx-tdep.c +++ b/gdb/rx-tdep.c @@ -1,6 +1,6 @@ /* Target-dependent code for the Renesas RX for GDB, the GNU debugger. - Copyright (C) 2008-2015 Free Software Foundation, Inc. + Copyright (C) 2008-2018 Free Software Foundation, Inc. Contributed by Red Hat, Inc. @@ -36,6 +36,7 @@ #include "elf/rx.h" #include "elf-bfd.h" +#include /* Certain important register numbers. */ enum @@ -45,21 +46,43 @@ enum RX_R4_REGNUM = 4, RX_FP_REGNUM = 6, RX_R15_REGNUM = 15, + RX_USP_REGNUM = 16, + RX_PSW_REGNUM = 18, RX_PC_REGNUM = 19, + RX_BPSW_REGNUM = 21, + RX_BPC_REGNUM = 22, + RX_FPSW_REGNUM = 24, RX_ACC_REGNUM = 25, RX_NUM_REGS = 26 }; +/* RX frame types. */ +enum rx_frame_type { + RX_FRAME_TYPE_NORMAL, + RX_FRAME_TYPE_EXCEPTION, + RX_FRAME_TYPE_FAST_INTERRUPT +}; + /* Architecture specific data. */ struct gdbarch_tdep { /* The ELF header flags specify the multilib used. */ int elf_flags; + + /* Type of PSW and BPSW. */ + struct type *rx_psw_type; + + /* Type of FPSW. */ + struct type *rx_fpsw_type; }; /* This structure holds the results of a prologue analysis. */ struct rx_prologue { + /* Frame type, either a normal frame or one of two types of exception + frames. */ + enum rx_frame_type frame_type; + /* The offset from the frame base to the stack pointer --- always zero or negative. @@ -127,12 +150,76 @@ rx_register_name (struct gdbarch *gdbarch, int regnr) return reg_names[regnr]; } +/* Construct the flags type for PSW and BPSW. */ + +static struct type * +rx_psw_type (struct gdbarch *gdbarch) +{ + struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); + + if (tdep->rx_psw_type == NULL) + { + tdep->rx_psw_type = arch_flags_type (gdbarch, "rx_psw_type", 32); + append_flags_type_flag (tdep->rx_psw_type, 0, "C"); + append_flags_type_flag (tdep->rx_psw_type, 1, "Z"); + append_flags_type_flag (tdep->rx_psw_type, 2, "S"); + append_flags_type_flag (tdep->rx_psw_type, 3, "O"); + append_flags_type_flag (tdep->rx_psw_type, 16, "I"); + append_flags_type_flag (tdep->rx_psw_type, 17, "U"); + append_flags_type_flag (tdep->rx_psw_type, 20, "PM"); + append_flags_type_flag (tdep->rx_psw_type, 24, "IPL0"); + append_flags_type_flag (tdep->rx_psw_type, 25, "IPL1"); + append_flags_type_flag (tdep->rx_psw_type, 26, "IPL2"); + append_flags_type_flag (tdep->rx_psw_type, 27, "IPL3"); + } + return tdep->rx_psw_type; +} + +/* Construct flags type for FPSW. */ + +static struct type * +rx_fpsw_type (struct gdbarch *gdbarch) +{ + struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); + + if (tdep->rx_fpsw_type == NULL) + { + tdep->rx_fpsw_type = arch_flags_type (gdbarch, "rx_fpsw_type", 32); + append_flags_type_flag (tdep->rx_fpsw_type, 0, "RM0"); + append_flags_type_flag (tdep->rx_fpsw_type, 1, "RM1"); + append_flags_type_flag (tdep->rx_fpsw_type, 2, "CV"); + append_flags_type_flag (tdep->rx_fpsw_type, 3, "CO"); + append_flags_type_flag (tdep->rx_fpsw_type, 4, "CZ"); + append_flags_type_flag (tdep->rx_fpsw_type, 5, "CU"); + append_flags_type_flag (tdep->rx_fpsw_type, 6, "CX"); + append_flags_type_flag (tdep->rx_fpsw_type, 7, "CE"); + append_flags_type_flag (tdep->rx_fpsw_type, 8, "DN"); + append_flags_type_flag (tdep->rx_fpsw_type, 10, "EV"); + append_flags_type_flag (tdep->rx_fpsw_type, 11, "EO"); + append_flags_type_flag (tdep->rx_fpsw_type, 12, "EZ"); + append_flags_type_flag (tdep->rx_fpsw_type, 13, "EU"); + append_flags_type_flag (tdep->rx_fpsw_type, 14, "EX"); + append_flags_type_flag (tdep->rx_fpsw_type, 26, "FV"); + append_flags_type_flag (tdep->rx_fpsw_type, 27, "FO"); + append_flags_type_flag (tdep->rx_fpsw_type, 28, "FZ"); + append_flags_type_flag (tdep->rx_fpsw_type, 29, "FU"); + append_flags_type_flag (tdep->rx_fpsw_type, 30, "FX"); + append_flags_type_flag (tdep->rx_fpsw_type, 31, "FS"); + } + + return tdep->rx_fpsw_type; +} + /* Implement the "register_type" gdbarch method. */ static struct type * rx_register_type (struct gdbarch *gdbarch, int reg_nr) { if (reg_nr == RX_PC_REGNUM) return builtin_type (gdbarch)->builtin_func_ptr; + else if (reg_nr == RX_PSW_REGNUM || reg_nr == RX_BPSW_REGNUM) + return rx_psw_type (gdbarch); + else if (reg_nr == RX_FPSW_REGNUM) + return rx_fpsw_type (gdbarch); else if (reg_nr == RX_ACC_REGNUM) return builtin_type (gdbarch)->builtin_unsigned_long_long; else @@ -141,7 +228,7 @@ rx_register_type (struct gdbarch *gdbarch, int reg_nr) /* Function for finding saved registers in a 'struct pv_area'; this - function is passed to pv_area_scan. + function is passed to pv_area::scan. If VALUE is a saved register, ADDR says it was saved at a constant offset from the frame base, and SIZE indicates that the whole @@ -172,11 +259,12 @@ struct rx_get_opcode_byte_handle static int rx_get_opcode_byte (void *handle) { - struct rx_get_opcode_byte_handle *opcdata = handle; + struct rx_get_opcode_byte_handle *opcdata + = (struct rx_get_opcode_byte_handle *) handle; int status; gdb_byte byte; - status = target_read_memory (opcdata->pc, &byte, 1); + status = target_read_code (opcdata->pc, &byte, 1); if (status == 0) { opcdata->pc += 1; @@ -188,31 +276,53 @@ rx_get_opcode_byte (void *handle) /* Analyze a prologue starting at START_PC, going no further than LIMIT_PC. Fill in RESULT as appropriate. */ + static void -rx_analyze_prologue (CORE_ADDR start_pc, - CORE_ADDR limit_pc, struct rx_prologue *result) +rx_analyze_prologue (CORE_ADDR start_pc, CORE_ADDR limit_pc, + enum rx_frame_type frame_type, + struct rx_prologue *result) { CORE_ADDR pc, next_pc; int rn; pv_t reg[RX_NUM_REGS]; - struct pv_area *stack; - struct cleanup *back_to; CORE_ADDR after_last_frame_setup_insn = start_pc; memset (result, 0, sizeof (*result)); + result->frame_type = frame_type; + for (rn = 0; rn < RX_NUM_REGS; rn++) { reg[rn] = pv_register (rn, 0); result->reg_offset[rn] = 1; } - stack = make_pv_area (RX_SP_REGNUM, gdbarch_addr_bit (target_gdbarch ())); - back_to = make_cleanup_free_pv_area (stack); + pv_area stack (RX_SP_REGNUM, gdbarch_addr_bit (target_gdbarch ())); + + if (frame_type == RX_FRAME_TYPE_FAST_INTERRUPT) + { + /* This code won't do anything useful at present, but this is + what happens for fast interrupts. */ + reg[RX_BPSW_REGNUM] = reg[RX_PSW_REGNUM]; + reg[RX_BPC_REGNUM] = reg[RX_PC_REGNUM]; + } + else + { + /* When an exception occurs, the PSW is saved to the interrupt stack + first. */ + if (frame_type == RX_FRAME_TYPE_EXCEPTION) + { + reg[RX_SP_REGNUM] = pv_add_constant (reg[RX_SP_REGNUM], -4); + stack.store (reg[RX_SP_REGNUM], 4, reg[RX_PSW_REGNUM]); + } + + /* The call instruction (or an exception/interrupt) has saved the return + address on the stack. */ + reg[RX_SP_REGNUM] = pv_add_constant (reg[RX_SP_REGNUM], -4); + stack.store (reg[RX_SP_REGNUM], 4, reg[RX_PC_REGNUM]); + + } - /* The call instruction has saved the return address on the stack. */ - reg[RX_SP_REGNUM] = pv_add_constant (reg[RX_SP_REGNUM], -4); - pv_area_store (stack, reg[RX_SP_REGNUM], 4, reg[RX_PC_REGNUM]); pc = start_pc; while (pc < limit_pc) @@ -238,7 +348,7 @@ rx_analyze_prologue (CORE_ADDR start_pc, for (r = r2; r >= r1; r--) { reg[RX_SP_REGNUM] = pv_add_constant (reg[RX_SP_REGNUM], -4); - pv_area_store (stack, reg[RX_SP_REGNUM], 4, reg[r]); + stack.store (reg[RX_SP_REGNUM], 4, reg[r]); } after_last_frame_setup_insn = next_pc; } @@ -265,7 +375,7 @@ rx_analyze_prologue (CORE_ADDR start_pc, rsrc = opc.op[1].reg; reg[RX_SP_REGNUM] = pv_add_constant (reg[RX_SP_REGNUM], -4); - pv_area_store (stack, reg[RX_SP_REGNUM], 4, reg[rsrc]); + stack.store (reg[RX_SP_REGNUM], 4, reg[rsrc]); after_last_frame_setup_insn = next_pc; } else if (opc.id == RXO_add /* add #const, rsrc, rdst */ @@ -341,11 +451,9 @@ rx_analyze_prologue (CORE_ADDR start_pc, } /* Record where all the registers were saved. */ - pv_area_scan (stack, check_for_saved, (void *) result); + stack.scan (check_for_saved, (void *) result); result->prologue_end = after_last_frame_setup_insn; - - do_cleanups (back_to); } @@ -361,7 +469,9 @@ rx_skip_prologue (struct gdbarch *gdbarch, CORE_ADDR pc) if (!find_pc_partial_function (pc, &name, &func_addr, &func_end)) return pc; - rx_analyze_prologue (pc, func_end, &p); + /* The frame type doesn't matter here, since we only care about + where the prologue ends. We'll use RX_FRAME_TYPE_NORMAL. */ + rx_analyze_prologue (pc, func_end, RX_FRAME_TYPE_NORMAL, &p); return p.prologue_end; } @@ -369,8 +479,10 @@ rx_skip_prologue (struct gdbarch *gdbarch, CORE_ADDR pc) associated function if there is not cache entry as specified by THIS_PROLOGUE_CACHE. Save the decoded prologue in the cache and return that struct as the value of this function. */ + static struct rx_prologue * rx_analyze_frame_prologue (struct frame_info *this_frame, + enum rx_frame_type frame_type, void **this_prologue_cache) { if (!*this_prologue_cache) @@ -387,19 +499,76 @@ rx_analyze_frame_prologue (struct frame_info *this_frame, if (!func_start) stop_addr = func_start; - rx_analyze_prologue (func_start, stop_addr, *this_prologue_cache); + rx_analyze_prologue (func_start, stop_addr, frame_type, + (struct rx_prologue *) *this_prologue_cache); + } + + return (struct rx_prologue *) *this_prologue_cache; +} + +/* Determine type of frame by scanning the function for a return + instruction. */ + +static enum rx_frame_type +rx_frame_type (struct frame_info *this_frame, void **this_cache) +{ + const char *name; + CORE_ADDR pc, start_pc, lim_pc; + int bytes_read; + struct rx_get_opcode_byte_handle opcode_handle; + RX_Opcode_Decoded opc; + + gdb_assert (this_cache != NULL); + + /* If we have a cached value, return it. */ + + if (*this_cache != NULL) + { + struct rx_prologue *p = (struct rx_prologue *) *this_cache; + + return p->frame_type; } - return *this_prologue_cache; + /* No cached value; scan the function. The frame type is cached in + rx_analyze_prologue / rx_analyze_frame_prologue. */ + + pc = get_frame_pc (this_frame); + + /* Attempt to find the last address in the function. If it cannot + be determined, set the limit to be a short ways past the frame's + pc. */ + if (!find_pc_partial_function (pc, &name, &start_pc, &lim_pc)) + lim_pc = pc + 20; + + while (pc < lim_pc) + { + opcode_handle.pc = pc; + bytes_read = rx_decode_opcode (pc, &opc, rx_get_opcode_byte, + &opcode_handle); + + if (bytes_read <= 0 || opc.id == RXO_rts) + return RX_FRAME_TYPE_NORMAL; + else if (opc.id == RXO_rtfi) + return RX_FRAME_TYPE_FAST_INTERRUPT; + else if (opc.id == RXO_rte) + return RX_FRAME_TYPE_EXCEPTION; + + pc += bytes_read; + } + + return RX_FRAME_TYPE_NORMAL; } + /* Given the next frame and a prologue cache, return this frame's base. */ + static CORE_ADDR -rx_frame_base (struct frame_info *this_frame, void **this_prologue_cache) +rx_frame_base (struct frame_info *this_frame, void **this_cache) { + enum rx_frame_type frame_type = rx_frame_type (this_frame, this_cache); struct rx_prologue *p - = rx_analyze_frame_prologue (this_frame, this_prologue_cache); + = rx_analyze_frame_prologue (this_frame, frame_type, this_cache); /* In functions that use alloca, the distance between the stack pointer and the frame base varies dynamically, so we can't use @@ -420,46 +589,166 @@ rx_frame_base (struct frame_info *this_frame, void **this_prologue_cache) } /* Implement the "frame_this_id" method for unwinding frames. */ + static void -rx_frame_this_id (struct frame_info *this_frame, - void **this_prologue_cache, struct frame_id *this_id) +rx_frame_this_id (struct frame_info *this_frame, void **this_cache, + struct frame_id *this_id) { - *this_id = frame_id_build (rx_frame_base (this_frame, this_prologue_cache), + *this_id = frame_id_build (rx_frame_base (this_frame, this_cache), get_frame_func (this_frame)); } /* Implement the "frame_prev_register" method for unwinding frames. */ + static struct value * -rx_frame_prev_register (struct frame_info *this_frame, - void **this_prologue_cache, int regnum) +rx_frame_prev_register (struct frame_info *this_frame, void **this_cache, + int regnum) { + enum rx_frame_type frame_type = rx_frame_type (this_frame, this_cache); struct rx_prologue *p - = rx_analyze_frame_prologue (this_frame, this_prologue_cache); - CORE_ADDR frame_base = rx_frame_base (this_frame, this_prologue_cache); - int reg_size = register_size (get_frame_arch (this_frame), regnum); + = rx_analyze_frame_prologue (this_frame, frame_type, this_cache); + CORE_ADDR frame_base = rx_frame_base (this_frame, this_cache); if (regnum == RX_SP_REGNUM) - return frame_unwind_got_constant (this_frame, regnum, frame_base); + { + if (frame_type == RX_FRAME_TYPE_EXCEPTION) + { + struct value *psw_val; + CORE_ADDR psw; + + psw_val = rx_frame_prev_register (this_frame, this_cache, + RX_PSW_REGNUM); + psw = extract_unsigned_integer (value_contents_all (psw_val), 4, + gdbarch_byte_order ( + get_frame_arch (this_frame))); + + if ((psw & 0x20000 /* U bit */) != 0) + return rx_frame_prev_register (this_frame, this_cache, + RX_USP_REGNUM); + + /* Fall through for the case where U bit is zero. */ + } + + return frame_unwind_got_constant (this_frame, regnum, frame_base); + } + + if (frame_type == RX_FRAME_TYPE_FAST_INTERRUPT) + { + if (regnum == RX_PC_REGNUM) + return rx_frame_prev_register (this_frame, this_cache, + RX_BPC_REGNUM); + if (regnum == RX_PSW_REGNUM) + return rx_frame_prev_register (this_frame, this_cache, + RX_BPSW_REGNUM); + } /* If prologue analysis says we saved this register somewhere, return a description of the stack slot holding it. */ - else if (p->reg_offset[regnum] != 1) + if (p->reg_offset[regnum] != 1) return frame_unwind_got_memory (this_frame, regnum, frame_base + p->reg_offset[regnum]); /* Otherwise, presume we haven't changed the value of this register, and get it from the next frame. */ + return frame_unwind_got_register (this_frame, regnum, regnum); +} + +/* Return TRUE if the frame indicated by FRAME_TYPE is a normal frame. */ + +static int +normal_frame_p (enum rx_frame_type frame_type) +{ + return (frame_type == RX_FRAME_TYPE_NORMAL); +} + +/* Return TRUE if the frame indicated by FRAME_TYPE is an exception + frame. */ + +static int +exception_frame_p (enum rx_frame_type frame_type) +{ + return (frame_type == RX_FRAME_TYPE_EXCEPTION + || frame_type == RX_FRAME_TYPE_FAST_INTERRUPT); +} + +/* Common code used by both normal and exception frame sniffers. */ + +static int +rx_frame_sniffer_common (const struct frame_unwind *self, + struct frame_info *this_frame, + void **this_cache, + int (*sniff_p)(enum rx_frame_type) ) +{ + gdb_assert (this_cache != NULL); + + if (*this_cache == NULL) + { + enum rx_frame_type frame_type = rx_frame_type (this_frame, this_cache); + + if (sniff_p (frame_type)) + { + /* The call below will fill in the cache, including the frame + type. */ + (void) rx_analyze_frame_prologue (this_frame, frame_type, this_cache); + + return 1; + } + else + return 0; + } else - return frame_unwind_got_register (this_frame, regnum, regnum); + { + struct rx_prologue *p = (struct rx_prologue *) *this_cache; + + return sniff_p (p->frame_type); + } +} + +/* Frame sniffer for normal (non-exception) frames. */ + +static int +rx_frame_sniffer (const struct frame_unwind *self, + struct frame_info *this_frame, + void **this_cache) +{ + return rx_frame_sniffer_common (self, this_frame, this_cache, + normal_frame_p); } +/* Frame sniffer for exception frames. */ + +static int +rx_exception_sniffer (const struct frame_unwind *self, + struct frame_info *this_frame, + void **this_cache) +{ + return rx_frame_sniffer_common (self, this_frame, this_cache, + exception_frame_p); +} + +/* Data structure for normal code using instruction-based prologue + analyzer. */ + static const struct frame_unwind rx_frame_unwind = { NORMAL_FRAME, default_frame_unwind_stop_reason, rx_frame_this_id, rx_frame_prev_register, NULL, - default_frame_sniffer + rx_frame_sniffer +}; + +/* Data structure for exception code using instruction-based prologue + analyzer. */ + +static const struct frame_unwind rx_exception_unwind = { + /* SIGTRAMP_FRAME could be used here, but backtraces are less informative. */ + NORMAL_FRAME, + default_frame_unwind_stop_reason, + rx_frame_this_id, + rx_frame_prev_register, + NULL, + rx_exception_sniffer }; /* Implement the "unwind_pc" gdbarch method. */ @@ -578,7 +867,8 @@ rx_push_dummy_call (struct gdbarch *gdbarch, struct value *function, struct_addr); } else if (TYPE_CODE (arg_type) != TYPE_CODE_STRUCT - && TYPE_CODE (arg_type) != TYPE_CODE_UNION) + && TYPE_CODE (arg_type) != TYPE_CODE_UNION + && arg_size <= 8) { /* Argument is a scalar. */ if (arg_size == 8) @@ -661,7 +951,7 @@ rx_push_dummy_call (struct gdbarch *gdbarch, struct value *function, && arg_size <= 4 * (RX_R4_REGNUM - arg_reg + 1) && arg_size % 4 == 0) { - int len = min (arg_size, 4); + int len = std::min (arg_size, (ULONGEST) 4); if (write_pass) regcache_cooked_write_unsigned (regcache, arg_reg, @@ -724,7 +1014,7 @@ rx_return_value (struct gdbarch *gdbarch, while (valtype_len > 0) { - int len = min (valtype_len, 4); + int len = std::min (valtype_len, (ULONGEST) 4); regcache_cooked_read_unsigned (regcache, argreg, &u); store_unsigned_integer (readbuf + offset, len, byte_order, u); @@ -742,7 +1032,7 @@ rx_return_value (struct gdbarch *gdbarch, while (valtype_len > 0) { - int len = min (valtype_len, 4); + int len = std::min (valtype_len, (ULONGEST) 4); u = extract_unsigned_integer (writebuf + offset, len, byte_order); regcache_cooked_write_unsigned (regcache, argreg, u); @@ -755,13 +1045,23 @@ rx_return_value (struct gdbarch *gdbarch, return RETURN_VALUE_REGISTER_CONVENTION; } -/* Implement the "breakpoint_from_pc" gdbarch method. */ -static const gdb_byte * -rx_breakpoint_from_pc (struct gdbarch *gdbarch, CORE_ADDR *pcptr, int *lenptr) +constexpr gdb_byte rx_break_insn[] = { 0x00 }; + +typedef BP_MANIPULATION (rx_break_insn) rx_breakpoint; + +/* Implement the dwarf_reg_to_regnum" gdbarch method. */ + +static int +rx_dwarf_reg_to_regnum (struct gdbarch *gdbarch, int reg) { - static gdb_byte breakpoint[] = { 0x00 }; - *lenptr = sizeof breakpoint; - return breakpoint; + if (0 <= reg && reg <= 15) + return reg; + else if (reg == 16) + return RX_PSW_REGNUM; + else if (reg == 17) + return RX_PC_REGNUM; + else + return -1; } /* Allocate and initialize a gdbarch object. */ @@ -794,7 +1094,7 @@ rx_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches) /* None found, create a new architecture from the information provided. */ - tdep = (struct gdbarch_tdep *) xmalloc (sizeof (struct gdbarch_tdep)); + tdep = XCNEW (struct gdbarch_tdep); gdbarch = gdbarch_alloc (&info, tdep); tdep->elf_flags = elf_flags; @@ -806,11 +1106,10 @@ rx_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches) set_gdbarch_sp_regnum (gdbarch, RX_SP_REGNUM); set_gdbarch_inner_than (gdbarch, core_addr_lessthan); set_gdbarch_decr_pc_after_break (gdbarch, 1); - set_gdbarch_breakpoint_from_pc (gdbarch, rx_breakpoint_from_pc); + set_gdbarch_breakpoint_kind_from_pc (gdbarch, rx_breakpoint::kind_from_pc); + set_gdbarch_sw_breakpoint_from_kind (gdbarch, rx_breakpoint::bp_from_kind); set_gdbarch_skip_prologue (gdbarch, rx_skip_prologue); - set_gdbarch_print_insn (gdbarch, print_insn_rx); - set_gdbarch_unwind_pc (gdbarch, rx_unwind_pc); set_gdbarch_unwind_sp (gdbarch, rx_unwind_sp); @@ -838,12 +1137,12 @@ rx_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches) set_gdbarch_long_double_format (gdbarch, floatformats_ieee_single); } + /* DWARF register mapping. */ + set_gdbarch_dwarf2_reg_to_regnum (gdbarch, rx_dwarf_reg_to_regnum); + /* Frame unwinding. */ -#if 0 - /* Note: The test results are better with the dwarf2 unwinder disabled, - so it's turned off for now. */ + frame_unwind_append_unwinder (gdbarch, &rx_exception_unwind); dwarf2_append_unwinders (gdbarch); -#endif frame_unwind_append_unwinder (gdbarch, &rx_frame_unwind); /* Methods for saving / extracting a dummy frame's ID. @@ -859,9 +1158,6 @@ rx_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches) return gdbarch; } -/* -Wmissing-prototypes */ -extern initialize_file_ftype _initialize_rx_tdep; - /* Register the above initialization routine. */ void