/* Target-dependent code for the Xtensa port of GDB, the GNU debugger.
- Copyright (C) 2003, 2005, 2006, 2007 Free Software Foundation, Inc.
+ Copyright (C) 2003-2014 Free Software Foundation, Inc.
This file is part of GDB.
/* 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).
+/* 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 uint32_t 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_greg_t windowstart;
+ xtensa_elf_greg_t windowbase;
+ xtensa_elf_greg_t reserved[8+48];
+ xtensa_elf_greg_t ar[64];
} xtensa_elf_gregset_t;
-#define SIZEOF_GREGSET (sizeof (xtensa_elf_gregset_t) + gdbarch_tdep (current_gdbarch)->num_aregs * 4)
-#define XTENSA_ELF_NGREG (SIZEOF_GREGSET / sizeof(xtensa_elf_greg_t))
-
+#define XTENSA_ELF_NGREG (sizeof (xtensa_elf_gregset_t) \
+ / sizeof (xtensa_elf_greg_t))
/* Mask. */
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;
+/* 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, ty, ((gr) | ((xtRegisterGroupNCP >> 2) << (cp + 2))), \
+ ct, bsz, sz, al, tnum, flg, cp, mas, fet, sto},
+#define XTREG_END {0, 0, 0, 0, 0, 0, 0, 0, -1, 0, 0, 0, 0, 0},
-#define XTENSA_REGISTER_FLAGS_PRIVILEDGED 0x0001
+#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
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;
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
+ {
+ struct ctype_cache *next;
+ int size;
+ struct type *virtual_type;
+ } *type_entries;
+};
+/* Macro to instantiate a gdbarch_tdep structure. */
+
+#define XTENSA_GDBARCH_TDEP_INSTANTIATE(rmap,spillsz) \
+ { \
+ .target_flags = 0, \
+ .spill_location = -1, \
+ .spill_size = (spillsz), \
+ .unused = 0, \
+ .call_abi = 0, \
+ .debug_interrupt_level = XCHAL_DEBUGLEVEL, \
+ .icache_line_bytes = XCHAL_ICACHE_LINESIZE, \
+ .dcache_line_bytes = XCHAL_DCACHE_LINESIZE, \
+ .dcache_writeback = XCHAL_DCACHE_IS_WRITEBACK, \
+ .isa_use_windowed_registers = (XSHAL_ABI != XTHAL_ABI_CALL0), \
+ .isa_use_density_instructions = XCHAL_HAVE_DENSITY, \
+ .isa_use_exceptions = XCHAL_HAVE_EXCEPTIONS, \
+ .isa_use_ext_l32r = XSHAL_USE_ABSOLUTE_LITERALS, \
+ .isa_max_insn_size = XCHAL_MAX_INSTRUCTION_SIZE, \
+ .debug_num_ibreaks = XCHAL_NUM_IBREAK, \
+ .debug_num_dbreaks = XCHAL_NUM_DBREAK, \
+ .regmap = rmap, \
+ .num_regs = 0, \
+ .num_nopriv_regs = 0, \
+ .num_pseudo_regs = 0, \
+ .num_aregs = XCHAL_NUM_AREGS, \
+ .num_contexts = XCHAL_NUM_CONTEXTS, \
+ .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 = -1, \
+ .max_register_raw_size = 0, \
+ .max_register_virtual_size = 0, \
+ .fp_layout = 0, \
+ .fp_layout_bytes = 0, \
+ .gregmap = 0, \
+ }
+#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
projects / platform / upstream / binutils.git / blobdiff