/* Target-dependent code for the i386.
- Copyright (C) 2001-2004, 2006-2012 Free Software Foundation, Inc.
+ Copyright (C) 2001-2022 Free Software Foundation, Inc.
This file is part of GDB.
#ifndef I386_TDEP_H
#define I386_TDEP_H
+#include "gdbarch.h"
+#include "infrun.h"
+#include "expression.h"
+
struct frame_info;
struct gdbarch;
struct reggroup;
reg_struct_return /* Return "short" structures in registers. */
};
-/* Register classes as defined in the AMD x86-64 psABI. */
-
-enum amd64_reg_class
-{
- AMD64_INTEGER,
- AMD64_SSE,
- AMD64_SSEUP,
- AMD64_X87,
- AMD64_X87UP,
- AMD64_COMPLEX_X87,
- AMD64_NO_CLASS,
- AMD64_MEMORY
-};
-
/* i386 architecture specific information. */
-struct gdbarch_tdep
+struct i386_gdbarch_tdep : gdbarch_tdep
{
/* General-purpose registers. */
- struct regset *gregset;
- int *gregset_reg_offset;
- int gregset_num_regs;
- size_t sizeof_gregset;
-
- /* The general-purpose registers used to pass integers when making
- function calls. This only applies to amd64, as all parameters
- are passed through the stack on x86. */
- int call_dummy_num_integer_regs;
- int *call_dummy_integer_regs;
-
- /* Used on amd64 only. Classify TYPE according to calling conventions,
- and store the result in CLASS. */
- void (*classify) (struct type *type, enum amd64_reg_class class[2]);
-
- /* Used on amd64 only. Non-zero if the first few MEMORY arguments
- should be passed by pointer.
-
- More precisely, MEMORY arguments are passed through the stack.
- But certain architectures require that their address be passed
- by register as well, if there are still some integer registers
- available for argument passing. */
- int memory_args_by_pointer;
-
- /* Used on amd64 only.
-
- If non-zero, then the callers of a function are expected to reserve
- some space in the stack just before the area where the PC is saved
- so that the callee may save the integer-parameter registers there.
- The amount of space is dependent on the list of registers used for
- integer parameter passing (see component call_dummy_num_integer_regs
- above). */
- int integer_param_regs_saved_in_caller_frame;
+ int *gregset_reg_offset = 0;
+ int gregset_num_regs = 0;
+ size_t sizeof_gregset = 0;
/* Floating-point registers. */
- struct regset *fpregset;
- size_t sizeof_fpregset;
-
- /* XSAVE extended state. */
- struct regset *xstateregset;
+ size_t sizeof_fpregset = 0;
/* 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. */
- int st0_regnum;
+ int st0_regnum = 0;
/* Number of MMX registers. */
- int num_mmx_regs;
+ int num_mmx_regs = 0;
/* Register number for %mm0. Set this to -1 to indicate the absence
of MMX support. */
- int mm0_regnum;
+ int mm0_regnum = 0;
/* Number of pseudo YMM registers. */
- int num_ymm_regs;
+ int num_ymm_regs = 0;
/* Register number for %ymm0. Set this to -1 to indicate the absence
of pseudo YMM register support. */
- int ymm0_regnum;
+ int ymm0_regnum = 0;
+
+ /* Number of AVX512 OpMask registers (K-registers) */
+ int num_k_regs = 0;
+
+ /* Register number for %k0. Set this to -1 to indicate the absence
+ of AVX512 OpMask register support. */
+ int k0_regnum = 0;
+
+ /* Number of pseudo ZMM registers ($zmm0-$zmm31). */
+ int num_zmm_regs = 0;
+
+ /* Register number for %zmm0. Set this to -1 to indicate the absence
+ of pseudo ZMM register support. */
+ int zmm0_regnum = 0;
/* Number of byte registers. */
- int num_byte_regs;
+ int num_byte_regs = 0;
/* Register pseudo number for %al. */
- int al_regnum;
+ int al_regnum = 0;
/* Number of pseudo word registers. */
- int num_word_regs;
+ int num_word_regs = 0;
/* Register number for %ax. */
- int ax_regnum;
+ int ax_regnum = 0;
/* Number of pseudo dword registers. */
- int num_dword_regs;
+ int num_dword_regs = 0;
/* Register number for %eax. Set this to -1 to indicate the absence
of pseudo dword register support. */
- int eax_regnum;
-
- /* Register number for SP, relative to %eax. Set this to -1 to
- indicate the absence of pseudo SP register support. */
- int sp_regnum_from_eax;
-
- /* Register number for PC, relative to %eax. Set this to -1 to
- indicate the absence of pseudo PC register support. */
- int pc_regnum_from_eax;
+ int eax_regnum = 0;
/* Number of core registers. */
- int num_core_regs;
+ int num_core_regs = 0;
/* Number of SSE registers. */
- int num_xmm_regs;
+ int num_xmm_regs = 0;
+
+ /* Number of SSE registers added in AVX512. */
+ int num_xmm_avx512_regs = 0;
+
+ /* Register number of XMM16, the first XMM register added in AVX512. */
+ int xmm16_regnum = 0;
+
+ /* Number of YMM registers added in AVX512. */
+ int num_ymm_avx512_regs = 0;
+
+ /* Register number of YMM16, the first YMM register added in AVX512. */
+ int ymm16_regnum = 0;
/* Bits of the extended control register 0 (the XFEATURE_ENABLED_MASK
register), excluding the x87 bit, which are supported by this GDB. */
- uint64_t xcr0;
+ uint64_t xcr0 = 0;
/* Offset of XCR0 in XSAVE extended state. */
- int xsave_xcr0_offset;
+ int xsave_xcr0_offset = 0;
/* Register names. */
- const char **register_names;
+ const char * const *register_names = nullptr;
/* Register number for %ymm0h. Set this to -1 to indicate the absence
of upper YMM register support. */
- int ymm0h_regnum;
+ int ymm0h_regnum = 0;
/* Upper YMM register names. Only used for tdesc_numbered_register. */
- const char **ymmh_register_names;
+ const char * const *ymmh_register_names = nullptr;
+
+ /* Register number for %ymm16h. Set this to -1 to indicate the absence
+ of support for YMM16-31. */
+ int ymm16h_regnum = 0;
+
+ /* YMM16-31 register names. Only used for tdesc_numbered_register. */
+ const char * const *ymm16h_register_names = nullptr;
+
+ /* Register number for %bnd0r. Set this to -1 to indicate the absence
+ bound registers. */
+ int bnd0r_regnum = 0;
+
+ /* Register number for pseudo register %bnd0. Set this to -1 to indicate the absence
+ bound registers. */
+ int bnd0_regnum = 0;
+
+ /* Register number for %bndcfgu. Set this to -1 to indicate the absence
+ bound control registers. */
+ int bndcfgu_regnum = 0;
+
+ /* MPX register names. Only used for tdesc_numbered_register. */
+ const char * const *mpx_register_names = nullptr;
+
+ /* Register number for %zmm0h. Set this to -1 to indicate the absence
+ of ZMM_HI256 register support. */
+ int zmm0h_regnum = 0;
+
+ /* OpMask register names. */
+ const char * const *k_register_names = nullptr;
+
+ /* ZMM register names. Only used for tdesc_numbered_register. */
+ const char * const *zmmh_register_names = nullptr;
+
+ /* XMM16-31 register names. Only used for tdesc_numbered_register. */
+ const char * const *xmm_avx512_register_names = nullptr;
+
+ /* YMM16-31 register names. Only used for tdesc_numbered_register. */
+ const char * const *ymm_avx512_register_names = nullptr;
+
+ /* Number of PKEYS registers. */
+ int num_pkeys_regs = 0;
+
+ /* Register number for PKRU register. */
+ int pkru_regnum = 0;
+
+ /* PKEYS register names. */
+ const char * const *pkeys_register_names = nullptr;
+
+ /* Register number for %fsbase. Set this to -1 to indicate the
+ absence of segment base registers. */
+ int fsbase_regnum = 0;
/* Target description. */
- const struct target_desc *tdesc;
+ const struct target_desc *tdesc = nullptr;
/* Register group function. */
- const void *register_reggroup_p;
+ gdbarch_register_reggroup_p_ftype *register_reggroup_p = nullptr;
/* Offset of saved PC in jmp_buf. */
- int jb_pc_offset;
+ int jb_pc_offset = 0;
/* Convention for returning structures. */
- enum struct_return struct_return;
+ enum struct_return struct_return {};
/* Address range where sigtramp lives. */
- CORE_ADDR sigtramp_start;
- CORE_ADDR sigtramp_end;
+ CORE_ADDR sigtramp_start = 0;
+ CORE_ADDR sigtramp_end = 0;
/* Detect sigtramp. */
- int (*sigtramp_p) (struct frame_info *);
+ int (*sigtramp_p) (struct frame_info *) = nullptr;
/* Get address of sigcontext for sigtramp. */
- CORE_ADDR (*sigcontext_addr) (struct frame_info *);
+ CORE_ADDR (*sigcontext_addr) (struct frame_info *) = nullptr;
/* Offset of registers in `struct sigcontext'. */
- int *sc_reg_offset;
- int sc_num_regs;
+ int *sc_reg_offset = 0;
+ int sc_num_regs = 0;
/* Offset of saved PC and SP in `struct sigcontext'. Usage of these
is deprecated, please use `sc_reg_offset' instead. */
- int sc_pc_offset;
- int sc_sp_offset;
+ int sc_pc_offset = 0;
+ int sc_sp_offset = 0;
/* ISA-specific data types. */
- struct type *i386_mmx_type;
- struct type *i386_ymm_type;
- struct type *i387_ext_type;
+ struct type *i386_mmx_type = nullptr;
+ struct type *i386_ymm_type = nullptr;
+ struct type *i386_zmm_type = nullptr;
+ struct type *i387_ext_type = nullptr;
+ struct type *i386_bnd_type = nullptr;
/* Process record/replay target. */
/* The map for registers because the AMD64's registers order
in GDB is not same as I386 instructions. */
- const int *record_regmap;
+ const int *record_regmap = nullptr;
/* Parse intx80 args. */
- int (*i386_intx80_record) (struct regcache *regcache);
+ int (*i386_intx80_record) (struct regcache *regcache) = nullptr;
/* Parse sysenter args. */
- int (*i386_sysenter_record) (struct regcache *regcache);
+ int (*i386_sysenter_record) (struct regcache *regcache) = nullptr;
/* Parse syscall args. */
- int (*i386_syscall_record) (struct regcache *regcache);
+ int (*i386_syscall_record) (struct regcache *regcache) = nullptr;
+
+ /* Regsets. */
+ const struct regset *fpregset = nullptr;
};
/* 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_ST0_REGNUM, /* %st(0) */
I386_MXCSR_REGNUM = 40, /* %mxcsr */
I386_YMM0H_REGNUM, /* %ymm0h */
- I386_YMM7H_REGNUM = I386_YMM0H_REGNUM + 7
+ I386_YMM7H_REGNUM = I386_YMM0H_REGNUM + 7,
+ I386_BND0R_REGNUM,
+ I386_BND3R_REGNUM = I386_BND0R_REGNUM + 3,
+ I386_BNDCFGU_REGNUM,
+ I386_BNDSTATUS_REGNUM,
+ I386_K0_REGNUM, /* %k0 */
+ I386_K7_REGNUM = I386_K0_REGNUM + 7,
+ I386_ZMM0H_REGNUM, /* %zmm0h */
+ I386_ZMM7H_REGNUM = I386_ZMM0H_REGNUM + 7,
+ I386_PKRU_REGNUM,
+ I386_FSBASE_REGNUM,
+ I386_GSBASE_REGNUM
};
/* Register numbers of RECORD_REGMAP. */
#define I386_SSE_NUM_REGS (I386_MXCSR_REGNUM + 1)
#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 16
+#define I386_MAX_REGISTER_SIZE 64
/* Types for i386-specific registers. */
extern struct type *i387_ext_type (struct gdbarch *gdbarch);
extern int i386_word_regnum_p (struct gdbarch *gdbarch, int regnum);
extern int i386_dword_regnum_p (struct gdbarch *gdbarch, int regnum);
extern int i386_xmm_regnum_p (struct gdbarch *gdbarch, int regnum);
+extern int i386_xmm_avx512_regnum_p (struct gdbarch * gdbarch, int regnum);
extern int i386_ymm_regnum_p (struct gdbarch *gdbarch, int regnum);
+extern int i386_ymm_avx512_regnum_p (struct gdbarch *gdbarch, int regnum);
+extern int i386_bnd_regnum_p (struct gdbarch *gdbarch, int regnum);
+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);
/* Return non-zero if REGNUM is a member of the specified group. */
extern int i386_register_reggroup_p (struct gdbarch *gdbarch, int regnum,
- struct reggroup *group);
+ const struct reggroup *group);
/* Supply register REGNUM from the general-purpose register set REGSET
to register cache REGCACHE. If REGNUM is -1, do this for all
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_copy_insn_closure
+ i386_displaced_step_copy_insn_closure;
+
+extern displaced_step_copy_insn_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,
- struct displaced_step_closure *closure,
- CORE_ADDR from, CORE_ADDR to,
- struct regcache *regs);
+extern void i386_displaced_step_fixup
+ (struct gdbarch *gdbarch, displaced_step_copy_insn_closure *closure,
+ CORE_ADDR from, CORE_ADDR to, regcache *regs);
/* Initialize a basic ELF architecture variant. */
extern void i386_elf_init_abi (struct gdbarch_info, struct 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);
+ 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;
-extern CORE_ADDR i386fbsd_sigtramp_end_addr;
extern CORE_ADDR i386obsd_sigtramp_start_addr;
extern CORE_ADDR i386obsd_sigtramp_end_addr;
-extern int i386fbsd4_sc_reg_offset[];
-extern int i386fbsd_sc_reg_offset[];
-extern int i386nbsd_sc_reg_offset[];
extern int i386obsd_sc_reg_offset[];
extern int i386bsd_sc_reg_offset[];
extern int i386_stap_is_single_operand (struct gdbarch *gdbarch,
const char *s);
-extern int i386_stap_parse_special_token (struct gdbarch *gdbarch,
- struct stap_parse_info *p);
+extern expr::operation_up i386_stap_parse_special_token
+ (struct gdbarch *gdbarch, struct stap_parse_info *p);
#endif /* i386-tdep.h */
projects / binutils-gdb.git / blobdiff