2006-11-14 22:53:59 +01:00
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/* Target-dependent code for the Xtensa port of GDB, the GNU debugger.
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2015-01-01 10:32:14 +01:00
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Copyright (C) 2003-2015 Free Software Foundation, Inc.
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2006-11-14 22:53:59 +01:00
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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2007-08-23 20:08:50 +02:00
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the Free Software Foundation; either version 3 of the License, or
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2006-11-14 22:53:59 +01:00
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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2007-08-23 20:08:50 +02:00
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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2006-11-14 22:53:59 +01:00
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/* XTENSA_TDEP_VERSION can/should be changed along with XTENSA_CONFIG_VERSION
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whenever the "tdep" structure changes in an incompatible way. */
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#define XTENSA_TDEP_VERSION 0x60
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/* Xtensa register type. */
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typedef enum
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{
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xtRegisterTypeArRegfile = 1, /* Register File ar0..arXX. */
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xtRegisterTypeSpecialReg, /* CPU states, such as PS, Booleans, (rsr). */
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xtRegisterTypeUserReg, /* User defined registers (rur). */
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xtRegisterTypeTieRegfile, /* User define register files. */
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xtRegisterTypeTieState, /* TIE States (mapped on user regs). */
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xtRegisterTypeMapped, /* Mapped on Special Registers. */
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xtRegisterTypeUnmapped, /* Special case of masked registers. */
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xtRegisterTypeWindow, /* Live window registers (a0..a15). */
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xtRegisterTypeVirtual, /* PC, FP. */
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xtRegisterTypeUnknown
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} xtensa_register_type_t;
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/* Xtensa register group. */
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2011-03-09 00:04:07 +01:00
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#define XTENSA_MAX_COPROCESSOR 0x10 /* Number of Xtensa coprocessors. */
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2007-08-09 01:22:18 +02:00
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2006-11-14 22:53:59 +01:00
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typedef enum
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{
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xtRegisterGroupUnknown = 0,
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xtRegisterGroupRegFile = 0x0001, /* Register files without ARx. */
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xtRegisterGroupAddrReg = 0x0002, /* ARx. */
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xtRegisterGroupSpecialReg = 0x0004, /* SRxx. */
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xtRegisterGroupUserReg = 0x0008, /* URxx. */
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xtRegisterGroupState = 0x0010, /* States. */
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xtRegisterGroupGeneral = 0x0100, /* General registers, Ax, SR. */
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xtRegisterGroupUser = 0x0200, /* User registers. */
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xtRegisterGroupFloat = 0x0400, /* Floating Point. */
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xtRegisterGroupVectra = 0x0800, /* Vectra. */
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xtRegisterGroupSystem = 0x1000, /* System. */
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2008-02-11 22:58:41 +01:00
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xtRegisterGroupNCP = 0x00800000, /* Non-CP non-base opt/custom. */
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xtRegisterGroupCP0 = 0x01000000, /* CP0. */
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xtRegisterGroupCP1 = 0x02000000, /* CP1. */
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xtRegisterGroupCP2 = 0x04000000, /* CP2. */
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xtRegisterGroupCP3 = 0x08000000, /* CP3. */
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xtRegisterGroupCP4 = 0x10000000, /* CP4. */
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xtRegisterGroupCP5 = 0x20000000, /* CP5. */
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xtRegisterGroupCP6 = 0x40000000, /* CP6. */
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xtRegisterGroupCP7 = 0x80000000, /* CP7. */
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2006-11-14 22:53:59 +01:00
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} xtensa_register_group_t;
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/* Xtensa target flags. */
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typedef enum
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{
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xtTargetFlagsNonVisibleRegs = 0x0001,
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xtTargetFlagsUseFetchStore = 0x0002,
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} xtensa_target_flags_t;
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2011-01-12 02:23:29 +01:00
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/* Xtensa ELF core file register set representation ('.reg' section).
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2006-11-14 22:53:59 +01:00
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Copied from target-side ELF header <xtensa/elf.h>. */
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2014-01-22 14:02:29 +01:00
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typedef uint32_t xtensa_elf_greg_t;
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typedef struct
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{
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xtensa_elf_greg_t pc;
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xtensa_elf_greg_t ps;
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xtensa_elf_greg_t lbeg;
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xtensa_elf_greg_t lend;
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xtensa_elf_greg_t lcount;
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xtensa_elf_greg_t sar;
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xtensa_elf_greg_t windowstart;
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xtensa_elf_greg_t windowbase;
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xtensa_elf_greg_t reserved[8+48];
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xtensa_elf_greg_t ar[64];
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} xtensa_elf_gregset_t;
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2008-02-11 22:58:41 +01:00
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#define XTENSA_ELF_NGREG (sizeof (xtensa_elf_gregset_t) \
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/ sizeof (xtensa_elf_greg_t))
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/* Mask. */
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* xtensa-tdep.h (xtensa_reg_mask_t): New.
(xtensa_mask_t): Change mask field to be a separate array.
* xtensa-tdep.c (extract_call_winsize, xtensa_pseudo_register_read)
(xtensa_pseudo_register_write, xtensa_unwind_pc)
(xtensa_unwind_dummy_id, xtensa_push_dummy_call)
(xtensa_breakpoint_from_pc): Remove implicit type casting.
* xtensa-config.c (mask0, mask1, mask2, mask3, mask4, mask5)
(mask6, mask7, mask8, mask9, mask10, mask11, mask12, mask13)
(mask14, mask15): Rename to
(xtensa_mask0, xtensa_mask1, xtensa_mask2, xtensa_mask3)
(xtensa_mask4, xtensa_mask5, xtensa_mask6, xtensa_mask7)
(xtensa_mask8, xtensa_mask9, xtensa_mask10, xtensa_mask11)
(xtensa_mask12, xtensa_mask13, xtensa_mask14, xtensa_mask15): this.
(xtensa_submask0, xtensa_submask1, xtensa_submask2, xtensa_submask3)
(xtensa_submask4, xtensa_submask5, xtensa_submask6, xtensa_submask7)
(xtensa_submask8, xtensa_submask9, xtensa_submask10)
(xtensa_submask11, xtensa_submask12, xtensa_submask13)
(xtensa_submask14, xtensa_submask15): New.
(rmap): Follow strict aliasing rules doing static initialization.
2007-02-15 20:51:59 +01:00
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typedef struct
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{
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int reg_num;
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int bit_start;
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int bit_size;
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} xtensa_reg_mask_t;
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2006-11-14 22:53:59 +01:00
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typedef struct
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{
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int count;
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* xtensa-tdep.h (xtensa_reg_mask_t): New.
(xtensa_mask_t): Change mask field to be a separate array.
* xtensa-tdep.c (extract_call_winsize, xtensa_pseudo_register_read)
(xtensa_pseudo_register_write, xtensa_unwind_pc)
(xtensa_unwind_dummy_id, xtensa_push_dummy_call)
(xtensa_breakpoint_from_pc): Remove implicit type casting.
* xtensa-config.c (mask0, mask1, mask2, mask3, mask4, mask5)
(mask6, mask7, mask8, mask9, mask10, mask11, mask12, mask13)
(mask14, mask15): Rename to
(xtensa_mask0, xtensa_mask1, xtensa_mask2, xtensa_mask3)
(xtensa_mask4, xtensa_mask5, xtensa_mask6, xtensa_mask7)
(xtensa_mask8, xtensa_mask9, xtensa_mask10, xtensa_mask11)
(xtensa_mask12, xtensa_mask13, xtensa_mask14, xtensa_mask15): this.
(xtensa_submask0, xtensa_submask1, xtensa_submask2, xtensa_submask3)
(xtensa_submask4, xtensa_submask5, xtensa_submask6, xtensa_submask7)
(xtensa_submask8, xtensa_submask9, xtensa_submask10)
(xtensa_submask11, xtensa_submask12, xtensa_submask13)
(xtensa_submask14, xtensa_submask15): New.
(rmap): Follow strict aliasing rules doing static initialization.
2007-02-15 20:51:59 +01:00
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xtensa_reg_mask_t *mask;
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2006-11-14 22:53:59 +01:00
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} xtensa_mask_t;
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/* Xtensa register representation. */
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typedef struct
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{
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char* name; /* Register name. */
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int offset; /* Offset. */
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xtensa_register_type_t type; /* Register type. */
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xtensa_register_group_t group;/* Register group. */
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struct type* ctype; /* C-type. */
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int bit_size; /* The actual bit size in the target. */
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int byte_size; /* Actual space allocated in registers[]. */
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int align; /* Alignment for this register. */
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unsigned int target_number; /* Register target number. */
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int flags; /* Flags. */
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int coprocessor; /* Coprocessor num, -1 for non-CP, else -2. */
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const xtensa_mask_t *mask; /* Register is a compilation of other regs. */
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const char *fetch; /* Instruction sequence to fetch register. */
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const char *store; /* Instruction sequence to store register. */
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} xtensa_register_t;
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2008-02-11 22:58:41 +01:00
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/* For xtensa-config.c to expand to the structure above. */
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#define XTREG(index,ofs,bsz,sz,al,tnum,flg,cp,ty,gr,name,fet,sto,mas,ct,x,y) \
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{#name, ofs, ty, ((gr) | ((xtRegisterGroupNCP >> 2) << (cp + 2))), \
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ct, bsz, sz, al, tnum, flg, cp, mas, fet, sto},
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#define XTREG_END {0, 0, 0, 0, 0, 0, 0, 0, -1, 0, 0, 0, 0, 0},
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2008-02-11 22:58:41 +01:00
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#define XTENSA_REGISTER_FLAGS_PRIVILEGED 0x0001
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#define XTENSA_REGISTER_FLAGS_READABLE 0x0002
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#define XTENSA_REGISTER_FLAGS_WRITABLE 0x0004
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#define XTENSA_REGISTER_FLAGS_VOLATILE 0x0008
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/* Call-ABI for stack frame. */
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typedef enum
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{
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CallAbiDefault = 0, /* Any 'callX' instructions; default stack. */
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CallAbiCall0Only, /* Only 'call0' instructions; flat stack. */
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} call_abi_t;
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Fix struct, union, and enum nesting in C++
In C, an enum or structure defined inside other structure has global
scope just like it had been defined outside the struct in the first
place. However, in C++, such a nested structure is given a name that
is nested inside the structure. This patch moves such affected
structures/enums out to global scope, so that code using them works
the same in C++ as it works today in C.
gdb/ChangeLog:
2015-02-27 Tom Tromey <tromey@redhat.com>
Pedro Alves <palves@redhat.com>
* dwarf2-frame.c (enum cfa_how_kind, struct
dwarf2_frame_state_reg_info): Move out of struct
dwarf2_frame_state.
* dwarf2read.c (struct tu_stats): Move out of struct
dwarf2_per_objfile.
(struct file_entry): Move out of struct line_header.
(struct nextfield, struct nextfnfield, struct fnfieldlist, struct
typedef_field_list): Move out of struct field_info.
* gdbtypes.h (enum dynamic_prop_kind, union dynamic_prop_data):
Move out of struct dynamic_prop.
(union type_owner, union field_location, struct field, struct
range_bounds, union type_specific): Move out of struct main_type.
(struct fn_fieldlist, struct fn_field, struct typedef_field)
(VOFFSET_STATIC): Move out of struct cplus_struct_type.
(struct call_site_target, union call_site_parameter_u, struct
call_site_parameter): Move out of struct call_site.
* m32c-tdep.c (enum m32c_prologue_kind): Move out of struct
m32c_prologue.
(enum srcdest_kind): Move out of struct srcdest.
* main.c (enum cmdarg_kind): Move out of struct cmdarg.
* prologue-value.h (enum prologue_value_kind): Move out of struct
prologue_value.
* s390-linux-tdep.c (enum s390_abi_kind): Move out of struct
gdbarch_tdep.
* stabsread.c (struct nextfield, struct next_fnfieldlist): Move
out of struct field_info.
* symfile.h (struct other_sections): Move out of struct
section_addr_info.
* symtab.c (struct symbol_cache_slot): Move out struct
block_symbol_cache.
* target-descriptions.c (enum tdesc_type_kind): Move out of
typedef struct tdesc_type.
* tui/tui-data.h (enum tui_line_or_address_kind): Move out of
struct tui_line_or_address.
* value.c (enum internalvar_kind, union internalvar_data): Move
out of struct internalvar.
* xtensa-tdep.h (struct ctype_cache): Move out of struct
gdbarch_tdep.
2015-02-09 15:59:05 +01:00
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struct ctype_cache
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{
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struct ctype_cache *next;
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int size;
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struct type *virtual_type;
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};
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2006-11-14 22:53:59 +01:00
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/* Xtensa-specific target dependencies. */
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struct gdbarch_tdep
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{
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unsigned int target_flags;
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/* Spill location for TIE register files under ocd. */
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unsigned int spill_location;
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unsigned int spill_size;
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char *unused; /* Placeholder for compatibility. */
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call_abi_t call_abi; /* Calling convention. */
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/* CPU configuration. */
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unsigned int debug_interrupt_level;
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unsigned int icache_line_bytes;
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unsigned int dcache_line_bytes;
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unsigned int dcache_writeback;
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unsigned int isa_use_windowed_registers;
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unsigned int isa_use_density_instructions;
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unsigned int isa_use_exceptions;
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unsigned int isa_use_ext_l32r;
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unsigned int isa_max_insn_size; /* Maximum instruction length. */
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unsigned int debug_num_ibreaks; /* Number of IBREAKs. */
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unsigned int debug_num_dbreaks;
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/* Register map. */
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xtensa_register_t* regmap;
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2008-02-11 22:58:41 +01:00
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unsigned int num_regs; /* Number of registers in register map. */
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unsigned int num_nopriv_regs; /* Number of non-privileged registers. */
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unsigned int num_pseudo_regs; /* Number of pseudo registers. */
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unsigned int num_aregs; /* Size of register file. */
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unsigned int num_contexts;
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int ar_base; /* Register number for AR0. */
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int a0_base; /* Register number for A0 (pseudo). */
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int wb_regnum; /* Register number for WB. */
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int ws_regnum; /* Register number for WS. */
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int pc_regnum; /* Register number for PC. */
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int ps_regnum; /* Register number for PS. */
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int lbeg_regnum; /* Register numbers for count regs. */
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int lend_regnum;
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int lcount_regnum;
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int sar_regnum; /* Register number of SAR. */
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int litbase_regnum; /* Register number of LITBASE. */
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int interrupt_regnum; /* Register number for interrupt. */
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int interrupt2_regnum; /* Register number for interrupt2. */
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int cpenable_regnum; /* Register number for cpenable. */
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int debugcause_regnum; /* Register number for debugcause. */
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int exccause_regnum; /* Register number for exccause. */
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int excvaddr_regnum; /* Register number for excvaddr. */
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int max_register_raw_size;
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int max_register_virtual_size;
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unsigned long *fp_layout; /* Layout of custom/TIE regs in 'FP' area. */
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unsigned int fp_layout_bytes; /* Size of layout information (in bytes). */
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unsigned long *gregmap;
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* gdbtypes.h (builtin_type_int0, builtin_type_int8, builtin_type_uint8,
builtin_type_int16, builtin_type_uint16, builtin_type_int32,
builtin_type_uint32, builtin_type_int64, builtin_type_uint64,
builtin_type_int128, builtin_type_uint128): Remove.
(struct builtin_type): New members builtin_int0, builtin_int8,
builtin_uint8, builtin_int16, builtin_uint16, builtin_int32,
builtin_uint32, builtin_int64, builtin_uint64, builtin_int128,
and builtin_uint128.
* gdbtypes.c (builtin_type_int0, builtin_type_int8, builtin_type_uint8,
builtin_type_int16, builtin_type_uint16, builtin_type_int32,
builtin_type_uint32, builtin_type_int64, builtin_type_uint64,
builtin_type_int128, builtin_type_uint128): Remove.
(_initialize_gdbtypes): Do not initialize them.
(gdbtypes_post_init): Initialize fixed-size integer types.
* dwarf2expr.c (unsigned_address_type, signed_address_type): Add
GDBARCH argument. Return platform-specific type.
(dwarf2_read_address, execute_stack_op): Update calls.
* target-descriptions.c (tdesc_gdb_type): Use platform-specific types
instead of global builtin_int_... variables.
* mi/mi-main.c (mi_cmd_data_read_memory): Likewise.
* printcmd.c (do_examine): Likewise.
* jv-exp.y (parse_number): Likewise.
* alpha-tdep.c (alpha_register_type, alpha_push_dummy_call,
alpha_store_return_value): Likewise.
* amd64-linux-tdep.c (amd64_linux_register_type): Likewise.
* amd64-tdep.c (amd64_register_type): Likewise.
* arm-tdep.c (arm_register_type): Likewise.
* avr-tdep.c (avr_register_type): Likewise.
* cris-tdep.c (cris_register_type, crisv32_register_type): Likewise.
* frv-tdep.c (frv_register_type): Likewise.
* h8300-tdep.c h8300_register_type): Likewise.
* hppa-tdep.c (hppa64_push_dummy_call, hppa32_register_type,
hppa64_register_type): Likewise.
* i386-tdep.c (i386_mmx_type, i386_sse_type): Likewise.
* iq2000-tdep.c (iq2000_register_type): Likewise.
* lm32-tdep.c (lm32_register_type, lm32_push_dummy_call): Likewise.
* m32r-tdep.c (m32r_register_type): Likewise.
* m68hc11-tdep.c (m68hc11_register_type, m68hc11_pseudo_register_read,
m68hc11_pseudo_register_write): Likewise.
* m68k-tdep.c (m68k_register_type): Likewise.
* m88k-tdep.c (m88k_register_type, m88k_store_arguments): Likewise.
* mep-tdep.c (mep_register_type): Likewise.
* mips-tdep.c (mips_register_type, mips_pseudo_register_type,
mips_print_fp_register): Likewise.
* moxie-tdep.c (moxie_register_type): Likewise.
* mt-tdep.c (mt_copro_register_type, mt_register_type): Likewise.
* rs6000-tdep.c (rs6000_builtin_type_vec64,
rs6000_builtin_type_vec128): Likewise.
* score-tdep.c (score_register_type): Likewise.
* sparc-tdep.c (sparc32_register_type, sparc32_store_arguments):
Likewise.
* sparc64-tdep.c (sparc64_register_type, sparc64_store_arguments):
Likewise.
* spu-tdep.c (spu_builtin_type_vec128, spu_register_type): Likewise.
* v850-tdep.c (v850_register_type): Likewise.
* xstormy16-tdep.c (xstormy16_register_type): Likewise.
* xtensa-tdep.c (xtensa_register_type): Likewise.
* mt-tdep.c (struct gdbarch_tdep): New data structure.
(mt_gdbarch_init): Alloc TDEP structures.
(mt_register_type): Cache coprocessor type in TDEP instead of
static global variable.
* xtensa-tdep.h (struct gdbarch_tdep): Add type_entries member.
* xtensa-tdep.c (type_entries): Remove.
(xtensa_register_type): Cache fixed-size types in TDEP instead
of in global variable.
2009-07-02 14:46:19 +02:00
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/* Cached register types. */
|
Fix struct, union, and enum nesting in C++
In C, an enum or structure defined inside other structure has global
scope just like it had been defined outside the struct in the first
place. However, in C++, such a nested structure is given a name that
is nested inside the structure. This patch moves such affected
structures/enums out to global scope, so that code using them works
the same in C++ as it works today in C.
gdb/ChangeLog:
2015-02-27 Tom Tromey <tromey@redhat.com>
Pedro Alves <palves@redhat.com>
* dwarf2-frame.c (enum cfa_how_kind, struct
dwarf2_frame_state_reg_info): Move out of struct
dwarf2_frame_state.
* dwarf2read.c (struct tu_stats): Move out of struct
dwarf2_per_objfile.
(struct file_entry): Move out of struct line_header.
(struct nextfield, struct nextfnfield, struct fnfieldlist, struct
typedef_field_list): Move out of struct field_info.
* gdbtypes.h (enum dynamic_prop_kind, union dynamic_prop_data):
Move out of struct dynamic_prop.
(union type_owner, union field_location, struct field, struct
range_bounds, union type_specific): Move out of struct main_type.
(struct fn_fieldlist, struct fn_field, struct typedef_field)
(VOFFSET_STATIC): Move out of struct cplus_struct_type.
(struct call_site_target, union call_site_parameter_u, struct
call_site_parameter): Move out of struct call_site.
* m32c-tdep.c (enum m32c_prologue_kind): Move out of struct
m32c_prologue.
(enum srcdest_kind): Move out of struct srcdest.
* main.c (enum cmdarg_kind): Move out of struct cmdarg.
* prologue-value.h (enum prologue_value_kind): Move out of struct
prologue_value.
* s390-linux-tdep.c (enum s390_abi_kind): Move out of struct
gdbarch_tdep.
* stabsread.c (struct nextfield, struct next_fnfieldlist): Move
out of struct field_info.
* symfile.h (struct other_sections): Move out of struct
section_addr_info.
* symtab.c (struct symbol_cache_slot): Move out struct
block_symbol_cache.
* target-descriptions.c (enum tdesc_type_kind): Move out of
typedef struct tdesc_type.
* tui/tui-data.h (enum tui_line_or_address_kind): Move out of
struct tui_line_or_address.
* value.c (enum internalvar_kind, union internalvar_data): Move
out of struct internalvar.
* xtensa-tdep.h (struct ctype_cache): Move out of struct
gdbarch_tdep.
2015-02-09 15:59:05 +01:00
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struct ctype_cache *type_entries;
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2006-11-14 22:53:59 +01:00
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};
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2008-02-11 22:58:41 +01:00
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/* Macro to instantiate a gdbarch_tdep structure. */
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#define XTENSA_GDBARCH_TDEP_INSTANTIATE(rmap,spillsz) \
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{ \
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.target_flags = 0, \
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.spill_location = -1, \
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.spill_size = (spillsz), \
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.unused = 0, \
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.call_abi = 0, \
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.debug_interrupt_level = XCHAL_DEBUGLEVEL, \
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.icache_line_bytes = XCHAL_ICACHE_LINESIZE, \
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.dcache_line_bytes = XCHAL_DCACHE_LINESIZE, \
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.dcache_writeback = XCHAL_DCACHE_IS_WRITEBACK, \
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.isa_use_windowed_registers = (XSHAL_ABI != XTHAL_ABI_CALL0), \
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.isa_use_density_instructions = XCHAL_HAVE_DENSITY, \
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.isa_use_exceptions = XCHAL_HAVE_EXCEPTIONS, \
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.isa_use_ext_l32r = XSHAL_USE_ABSOLUTE_LITERALS, \
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.isa_max_insn_size = XCHAL_MAX_INSTRUCTION_SIZE, \
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.debug_num_ibreaks = XCHAL_NUM_IBREAK, \
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.debug_num_dbreaks = XCHAL_NUM_DBREAK, \
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.regmap = rmap, \
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.num_regs = 0, \
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.num_nopriv_regs = 0, \
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.num_pseudo_regs = 0, \
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.num_aregs = XCHAL_NUM_AREGS, \
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.num_contexts = XCHAL_NUM_CONTEXTS, \
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.ar_base = -1, \
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.a0_base = -1, \
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.wb_regnum = -1, \
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.ws_regnum = -1, \
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.pc_regnum = -1, \
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.ps_regnum = -1, \
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.lbeg_regnum = -1, \
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.lend_regnum = -1, \
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.lcount_regnum = -1, \
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.sar_regnum = -1, \
|
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.litbase_regnum = -1, \
|
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.interrupt_regnum = -1, \
|
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.interrupt2_regnum = -1, \
|
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.cpenable_regnum = -1, \
|
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.debugcause_regnum = -1, \
|
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.exccause_regnum = -1, \
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.excvaddr_regnum = -1, \
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.max_register_raw_size = 0, \
|
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.max_register_virtual_size = 0, \
|
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.fp_layout = 0, \
|
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.fp_layout_bytes = 0, \
|
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.gregmap = 0, \
|
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}
|
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#define XTENSA_CONFIG_INSTANTIATE(rmap,spill_size) \
|
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struct gdbarch_tdep xtensa_tdep = \
|
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XTENSA_GDBARCH_TDEP_INSTANTIATE(rmap,spill_size);
|
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#ifndef XCHAL_NUM_CONTEXTS
|
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#define XCHAL_NUM_CONTEXTS 0
|
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#endif
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#ifndef XCHAL_HAVE_EXCEPTIONS
|
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#define XCHAL_HAVE_EXCEPTIONS 1
|
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#endif
|
2006-11-14 22:53:59 +01:00
|
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#define WB_SHIFT 2
|
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/* We assign fixed numbers to the registers of the "current" window
|
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(i.e., relative to WB). The registers get remapped via the reg_map
|
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data structure to their corresponding register in the AR register
|
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file (see xtensa-tdep.c). */
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