/* Target-dependent code for the i386.
- Copyright (C) 2001-2014 Free Software Foundation, Inc.
+ Copyright (C) 2001-2020 Free Software Foundation, Inc.
This file is part of GDB.
#ifndef I386_TDEP_H
#define I386_TDEP_H
+#include "gdbarch.h"
+#include "infrun.h"
+
struct frame_info;
struct gdbarch;
struct reggroup;
struct gdbarch_tdep
{
/* General-purpose registers. */
- struct regset *gregset;
int *gregset_reg_offset;
int gregset_num_regs;
size_t sizeof_gregset;
/* Floating-point registers. */
- struct regset *fpregset;
size_t sizeof_fpregset;
- /* XSAVE extended state. */
- struct regset *xstateregset;
-
/* Register number for %st(0). The register numbers for the other
registers follow from this one. Set this to -1 to indicate the
absence of an FPU. */
/* YMM16-31 register names. Only used for tdesc_numbered_register. */
const char **ymm_avx512_register_names;
+ /* Number of PKEYS registers. */
+ int num_pkeys_regs;
+
+ /* Register number for PKRU register. */
+ int pkru_regnum;
+
+ /* PKEYS register names. */
+ const char **pkeys_register_names;
+
+ /* Register number for %fsbase. Set this to -1 to indicate the
+ absence of segment base registers. */
+ int fsbase_regnum;
+
/* Target description. */
const struct target_desc *tdesc;
/* Register group function. */
- const void *register_reggroup_p;
+ gdbarch_register_reggroup_p_ftype *register_reggroup_p;
/* Offset of saved PC in jmp_buf. */
int jb_pc_offset;
int (*i386_sysenter_record) (struct regcache *regcache);
/* Parse syscall args. */
int (*i386_syscall_record) (struct regcache *regcache);
+
+ /* Regsets. */
+ const struct regset *fpregset;
};
/* Floating-point registers. */
-/* All FPU control regusters (except for FIOFF and FOOFF) are 16-bit
+/* All FPU control registers (except for FIOFF and FOOFF) are 16-bit
(at most) in the FPU, but are zero-extended to 32 bits in GDB's
register cache. */
I386_K0_REGNUM, /* %k0 */
I386_K7_REGNUM = I386_K0_REGNUM + 7,
I386_ZMM0H_REGNUM, /* %zmm0h */
- I386_ZMM7H_REGNUM = I386_ZMM0H_REGNUM + 7
+ I386_ZMM7H_REGNUM = I386_ZMM0H_REGNUM + 7,
+ I386_PKRU_REGNUM,
+ I386_FSBASE_REGNUM,
+ I386_GSBASE_REGNUM
};
/* Register numbers of RECORD_REGMAP. */
#define I386_AVX_NUM_REGS (I386_YMM7H_REGNUM + 1)
#define I386_MPX_NUM_REGS (I386_BNDSTATUS_REGNUM + 1)
#define I386_AVX512_NUM_REGS (I386_ZMM7H_REGNUM + 1)
+#define I386_PKEYS_NUM_REGS (I386_PKRU_REGNUM + 1)
+#define I386_NUM_REGS (I386_GSBASE_REGNUM + 1)
/* Size of the largest register. */
#define I386_MAX_REGISTER_SIZE 64
extern int i386_k_regnum_p (struct gdbarch *gdbarch, int regnum);
extern int i386_zmm_regnum_p (struct gdbarch *gdbarch, int regnum);
extern int i386_zmmh_regnum_p (struct gdbarch *gdbarch, int regnum);
+extern bool i386_pkru_regnum_p (struct gdbarch *gdbarch, int regnum);
extern const char *i386_pseudo_register_name (struct gdbarch *gdbarch,
int regnum);
int regnum);
extern void i386_pseudo_register_read_into_value (struct gdbarch *gdbarch,
- struct regcache *regcache,
+ readable_regcache *regcache,
int regnum,
struct value *result);
struct regcache *regcache,
int regnum, const gdb_byte *buf);
+extern int i386_ax_pseudo_register_collect (struct gdbarch *gdbarch,
+ struct agent_expr *ax,
+ int regnum);
+
/* Segment selectors. */
#define I386_SEL_RPL 0x0003 /* Requester's Privilege Level mask. */
#define I386_SEL_UPL 0x0003 /* User Privilige Level. */
extern CORE_ADDR i386_skip_main_prologue (struct gdbarch *gdbarch,
CORE_ADDR pc);
+/* The "push_dummy_call" gdbarch method, optionally with the thiscall
+ calling convention. */
+extern CORE_ADDR i386_thiscall_push_dummy_call (struct gdbarch *gdbarch,
+ struct value *function,
+ struct regcache *regcache,
+ CORE_ADDR bp_addr,
+ int nargs, struct value **args,
+ CORE_ADDR sp,
+ function_call_return_method
+ return_method,
+ CORE_ADDR struct_addr,
+ bool thiscall);
+
/* Return whether the THIS_FRAME corresponds to a sigtramp routine. */
extern int i386_sigtramp_p (struct frame_info *this_frame);
struct regcache *regcache, int regnum,
const void *gregs, size_t len);
-/* Collect register REGNUM from the register cache REGCACHE and store
- it in the buffer specified by GREGS and LEN as described by the
- general-purpose register set REGSET. If REGNUM is -1, do this for
- all registers in REGSET. */
-extern void i386_collect_gregset (const struct regset *regset,
- const struct regcache *regcache,
- int regnum, void *gregs, size_t len);
+/* General-purpose register set. */
+extern const struct regset i386_gregset;
-/* Return the appropriate register set for the core section identified
- by SECT_NAME and SECT_SIZE. */
-extern const struct regset *
- i386_regset_from_core_section (struct gdbarch *gdbarch,
- const char *sect_name, size_t sect_size);
+/* Floating-point register set. */
+extern const struct regset i386_fpregset;
+/* Default iterator over core file register note sections. */
+extern void
+ i386_iterate_over_regset_sections (struct gdbarch *gdbarch,
+ iterate_over_regset_sections_cb *cb,
+ void *cb_data,
+ const struct regcache *regcache);
-extern struct displaced_step_closure *i386_displaced_step_copy_insn
+typedef buf_displaced_step_closure i386_displaced_step_closure;
+
+extern displaced_step_closure_up i386_displaced_step_copy_insn
(struct gdbarch *gdbarch, CORE_ADDR from, CORE_ADDR to,
struct regcache *regs);
extern void i386_displaced_step_fixup (struct gdbarch *gdbarch,
/* Initialize a SVR4 architecture variant. */
extern void i386_svr4_init_abi (struct gdbarch_info, struct gdbarch *);
+/* Convert SVR4 register number REG to the appropriate register number
+ used by GDB. */
+extern int i386_svr4_reg_to_regnum (struct gdbarch *gdbarch, int reg);
+
extern int i386_process_record (struct gdbarch *gdbarch,
struct regcache *regcache, CORE_ADDR addr);
+extern const struct target_desc *i386_target_description (uint64_t xcr0,
+ bool segments);
+/* Return true iff the current target is MPX enabled. */
+extern int i386_mpx_enabled (void);
\f
-/* Functions and variables exported from i386bsd-tdep.c. */
+/* Functions and variables exported from i386-bsd-tdep.c. */
extern void i386bsd_init_abi (struct gdbarch_info, struct gdbarch *);
extern CORE_ADDR i386fbsd_sigtramp_start_addr;
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