/* Target-dependent code for the Xtensa port of GDB, the GNU debugger.
- Copyright (C) 2003, 2005, 2006, 2007 Free Software Foundation, Inc.
+ Copyright (C) 2003-2020 Free Software Foundation, Inc.
This file is part of GDB.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
+#ifndef XTENSA_TDEP_H
+#define XTENSA_TDEP_H
+
+#include "arch/xtensa.h"
/* XTENSA_TDEP_VERSION can/should be changed along with XTENSA_CONFIG_VERSION
whenever the "tdep" structure changes in an incompatible way. */
/* Xtensa register group. */
-#define XTENSA_MAX_COPROCESSOR 0x08 /* Number of Xtensa coprocessors. */
+#define XTENSA_MAX_COPROCESSOR 0x10 /* Number of Xtensa coprocessors. */
typedef enum
{
xtRegisterGroupVectra = 0x0800, /* Vectra. */
xtRegisterGroupSystem = 0x1000, /* System. */
+ xtRegisterGroupNCP = 0x00800000, /* Non-CP non-base opt/custom. */
xtRegisterGroupCP0 = 0x01000000, /* CP0. */
xtRegisterGroupCP1 = 0x02000000, /* CP1. */
xtRegisterGroupCP2 = 0x04000000, /* CP2. */
} xtensa_target_flags_t;
-/* Xtensa ELF core file register set representation ('.reg' section).
- Copied from target-side ELF header <xtensa/elf.h>. */
-
-typedef unsigned long xtensa_elf_greg_t;
-
-typedef struct
-{
- xtensa_elf_greg_t xchal_config_id0;
- xtensa_elf_greg_t xchal_config_id1;
- xtensa_elf_greg_t cpux;
- xtensa_elf_greg_t cpuy;
- xtensa_elf_greg_t pc;
- xtensa_elf_greg_t ps;
- xtensa_elf_greg_t exccause;
- xtensa_elf_greg_t excvaddr;
- xtensa_elf_greg_t windowbase;
- xtensa_elf_greg_t windowstart;
- xtensa_elf_greg_t lbeg;
- xtensa_elf_greg_t lend;
- xtensa_elf_greg_t lcount;
- xtensa_elf_greg_t sar;
- xtensa_elf_greg_t syscall;
- xtensa_elf_greg_t ar[0]; /* variable size (per config). */
-} xtensa_elf_gregset_t;
-
-#define SIZEOF_GREGSET (sizeof (xtensa_elf_gregset_t) + NUM_AREGS * 4)
-#define XTENSA_ELF_NGREG (SIZEOF_GREGSET / sizeof(xtensa_elf_greg_t))
-
-
/* Mask. */
typedef struct
typedef struct
{
- char* name; /* Register name. */
+ const char *name; /* Register name. */
int offset; /* Offset. */
xtensa_register_type_t type; /* Register type. */
xtensa_register_group_t group;/* Register group. */
unsigned int target_number; /* Register target number. */
int flags; /* Flags. */
+ int coprocessor; /* Coprocessor num, -1 for non-CP, else -2. */
const xtensa_mask_t *mask; /* Register is a compilation of other regs. */
const char *fetch; /* Instruction sequence to fetch register. */
const char *store; /* Instruction sequence to store register. */
} xtensa_register_t;
-
-#define XTENSA_REGISTER_FLAGS_PRIVILEDGED 0x0001
+/* For xtensa-config.c to expand to the structure above. */
+#define XTREG(index,ofs,bsz,sz,al,tnum,flg,cp,ty,gr,name,fet,sto,mas,ct,x,y) \
+ {#name, ofs, (xtensa_register_type_t) (ty), \
+ ((xtensa_register_group_t) \
+ ((gr) | ((xtRegisterGroupNCP >> 2) << (cp + 2)))), \
+ ct, bsz, sz, al, tnum, flg, cp, mas, fet, sto},
+#define XTREG_END \
+ {0, 0, (xtensa_register_type_t) 0, (xtensa_register_group_t) 0, \
+ 0, 0, 0, 0, (unsigned) -1, 0, 0, 0, 0, 0},
+
+#define XTENSA_REGISTER_FLAGS_PRIVILEGED 0x0001
#define XTENSA_REGISTER_FLAGS_READABLE 0x0002
#define XTENSA_REGISTER_FLAGS_WRITABLE 0x0004
#define XTENSA_REGISTER_FLAGS_VOLATILE 0x0008
-
/* Call-ABI for stack frame. */
typedef enum
} call_abi_t;
+struct ctype_cache
+{
+ struct ctype_cache *next;
+ int size;
+ struct type *virtual_type;
+};
+
/* Xtensa-specific target dependencies. */
struct gdbarch_tdep
xtensa_register_t* regmap;
- unsigned int num_regs; /* Number of registers in regmap. */
+ unsigned int num_regs; /* Number of registers in register map. */
+ unsigned int num_nopriv_regs; /* Number of non-privileged registers. */
unsigned int num_pseudo_regs; /* Number of pseudo registers. */
unsigned int num_aregs; /* Size of register file. */
unsigned int num_contexts;
int lcount_regnum;
int sar_regnum; /* Register number of SAR. */
int litbase_regnum; /* Register number of LITBASE. */
+ int threadptr_regnum; /* Register number of THREADPTR. */
int interrupt_regnum; /* Register number for interrupt. */
int interrupt2_regnum; /* Register number for interrupt2. */
unsigned long *fp_layout; /* Layout of custom/TIE regs in 'FP' area. */
unsigned int fp_layout_bytes; /* Size of layout information (in bytes). */
unsigned long *gregmap;
-};
+ /* Cached register types. */
+ struct ctype_cache *type_entries;
+};
-/* Define macros to access some of the gdbarch entries. */
-#define XTENSA_TARGET_FLAGS \
- (gdbarch_tdep (current_gdbarch)->target_flags)
-#define SPILL_LOCATION \
- (gdbarch_tdep (current_gdbarch)->spill_location)
-#define SPILL_SIZE \
- (gdbarch_tdep (current_gdbarch)->spill_size)
-#define CALL_ABI \
- (gdbarch_tdep (current_gdbarch)->call_abi)
-#define ISA_USE_WINDOWED_REGISTERS \
- (gdbarch_tdep (current_gdbarch)->isa_use_windowed_registers)
-#define ISA_USE_DENSITY_INSTRUCTIONS \
- (gdbarch_tdep (current_gdbarch)->isa_use_density_instructions)
-#define ISA_USE_EXCEPTIONS \
- (gdbarch_tdep (current_gdbarch)->isa_use_exceptions)
-#define ISA_USE_EXT_L32R \
- (gdbarch_tdep (current_gdbarch)->isa_use_ext_l32r)
-#define DEBUG_DATA_VADDR_TRAP_COUNT \
- (gdbarch_tdep (current_gdbarch)->debug_data_vaddr_trap_count)
-#define DEBUG_INST_VADDR_TRAP_COUNT \
- (gdbarch_tdep (current_gdbarch)->debug_inst_vaddr_trap_count)
-#define ISA_MAX_INSN_SIZE \
- (gdbarch_tdep (current_gdbarch)->isa_max_insn_size)
-#define DEBUG_NUM_IBREAKS \
- (gdbarch_tdep (current_gdbarch)->debug_num_ibreaks)
-#define DEBUG_NUM_DBREAKS \
- (gdbarch_tdep (current_gdbarch)->debug_num_dbreaks)
-
-#define NUM_AREGS (gdbarch_tdep (current_gdbarch)->num_aregs)
-#define WB_REGNUM (gdbarch_tdep (current_gdbarch)->wb_regnum)
-#define WS_REGNUM (gdbarch_tdep (current_gdbarch)->ws_regnum)
-#define LBEG_REGNUM (gdbarch_tdep (current_gdbarch)->lbeg_regnum)
-#define LEND_REGNUM (gdbarch_tdep (current_gdbarch)->lend_regnum)
-#define LCOUNT_REGNUM (gdbarch_tdep (current_gdbarch)->lcount_regnum)
-#define SAR_REGNUM (gdbarch_tdep (current_gdbarch)->sar_regnum)
-#define REGMAP (gdbarch_tdep (current_gdbarch)->regmap)
-
-#define LITBASE_REGNUM (gdbarch_tdep (current_gdbarch)->litbase_regnum)
-#define DEBUGCAUSE_REGNUM (gdbarch_tdep (current_gdbarch)->debugcause_regnum)
-#define EXCCAUSE_REGNUM (gdbarch_tdep (current_gdbarch)->exccause_regnum)
-#define EXCVADDR_REGNUM (gdbarch_tdep (current_gdbarch)->excvaddr_regnum)
-#define NUM_IBREAKS (gdbarch_tdep (current_gdbarch)->num_ibreaks)
-#define REGMAP_BYTES (gdbarch_tdep (current_gdbarch)->regmap_bytes)
-#define A0_BASE (gdbarch_tdep (current_gdbarch)->a0_base)
-#define AR_BASE (gdbarch_tdep (current_gdbarch)->ar_base)
-#define FP_ALIAS \
- (gdbarch_num_regs (current_gdbarch) \
- + gdbarch_num_pseudo_regs (current_gdbarch))
-#define CALL_ABI (gdbarch_tdep (current_gdbarch)->call_abi)
-#define NUM_CONTEXTS (gdbarch_tdep (current_gdbarch)->num_contexts)
-
-#define FP_LAYOUT (gdbarch_tdep (current_gdbarch)->fp_layout)
-#define FP_LAYOUT_BYTES (gdbarch_tdep (current_gdbarch)->fp_layout_bytes)
-#define GREGMAP (gdbarch_tdep (current_gdbarch)->gregmap)
-
-#define AREGS_MASK (NUM_AREGS - 1)
-#define WB_MASK (AREGS_MASK >> 2)
+/* Macro to instantiate a gdbarch_tdep structure. */
+
+#define XTENSA_GDBARCH_TDEP_INSTANTIATE(rmap,spillsz) \
+ { \
+ 0, /* target_flags */ \
+ (unsigned) -1, /* spill_location */ \
+ (spillsz), /* spill_size */ \
+ 0, /* unused */ \
+ (XSHAL_ABI == XTHAL_ABI_CALL0 \
+ ? CallAbiCall0Only \
+ : CallAbiDefault), /* call_abi */ \
+ XCHAL_DEBUGLEVEL, /* debug_interrupt_level */ \
+ XCHAL_ICACHE_LINESIZE, /* icache_line_bytes */ \
+ XCHAL_DCACHE_LINESIZE, /* dcache_line_bytes */ \
+ XCHAL_DCACHE_IS_WRITEBACK, /* dcache_writeback */ \
+ (XSHAL_ABI != XTHAL_ABI_CALL0), /* isa_use_windowed_registers */ \
+ XCHAL_HAVE_DENSITY, /* isa_use_density_instructions */ \
+ XCHAL_HAVE_EXCEPTIONS, /* isa_use_exceptions */ \
+ XSHAL_USE_ABSOLUTE_LITERALS, /* isa_use_ext_l32r */ \
+ XCHAL_MAX_INSTRUCTION_SIZE, /* isa_max_insn_size */ \
+ XCHAL_NUM_IBREAK, /* debug_num_ibreaks */ \
+ XCHAL_NUM_DBREAK, /* debug_num_dbreaks */ \
+ rmap, /* regmap */ \
+ 0, /* num_regs */ \
+ 0, /* num_nopriv_regs */ \
+ 0, /* num_pseudo_regs */ \
+ XCHAL_NUM_AREGS, /* num_aregs */ \
+ XCHAL_NUM_CONTEXTS, /* num_contexts */ \
+ -1, /* ar_base */ \
+ -1, /* a0_base */ \
+ -1, /* wb_regnum */ \
+ -1, /* ws_regnum */ \
+ -1, /* pc_regnum */ \
+ -1, /* ps_regnum */ \
+ -1, /* lbeg_regnum */ \
+ -1, /* lend_regnum */ \
+ -1, /* lcount_regnum */ \
+ -1, /* sar_regnum */ \
+ -1, /* litbase_regnum */ \
+ -1, /* interrupt_regnum */ \
+ -1, /* interrupt2_regnum */ \
+ -1, /* cpenable_regnum */ \
+ -1, /* debugcause_regnum */ \
+ -1, /* exccause_regnum */ \
+ -1, /* excvaddr_regnum */ \
+ 0, /* max_register_raw_size */ \
+ 0, /* max_register_virtual_size */ \
+ 0, /* fp_layout */ \
+ 0, /* fp_layout_bytes */ \
+ 0, /* gregmap */ \
+ }
+#define XTENSA_CONFIG_INSTANTIATE(rmap,spill_size) \
+ struct gdbarch_tdep xtensa_tdep = \
+ XTENSA_GDBARCH_TDEP_INSTANTIATE(rmap,spill_size);
+
+#ifndef XCHAL_NUM_CONTEXTS
+#define XCHAL_NUM_CONTEXTS 0
+#endif
+#ifndef XCHAL_HAVE_EXCEPTIONS
+#define XCHAL_HAVE_EXCEPTIONS 1
+#endif
#define WB_SHIFT 2
/* We assign fixed numbers to the registers of the "current" window
data structure to their corresponding register in the AR register
file (see xtensa-tdep.c). */
-#define A0_REGNUM (A0_BASE + 0)
-#define A1_REGNUM (A0_BASE + 1)
-#define A2_REGNUM (A0_BASE + 2)
-#define A3_REGNUM (A0_BASE + 3)
-#define A4_REGNUM (A0_BASE + 4)
-#define A5_REGNUM (A0_BASE + 5)
-#define A6_REGNUM (A0_BASE + 6)
-#define A7_REGNUM (A0_BASE + 7)
-#define A8_REGNUM (A0_BASE + 8)
-#define A9_REGNUM (A0_BASE + 9)
-#define A10_REGNUM (A0_BASE + 10)
-#define A11_REGNUM (A0_BASE + 11)
-#define A12_REGNUM (A0_BASE + 12)
-#define A13_REGNUM (A0_BASE + 13)
-#define A14_REGNUM (A0_BASE + 14)
-#define A15_REGNUM (A0_BASE + 15)
-
+#endif /* XTENSA_TDEP_H */
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