X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=gdb%2Fi386-tdep.h;h=bcfa7194bb236ee43547475c910869e2c1770fec;hb=c296cbe681815593eb57033368ac1b20b7a67252;hp=f79a15de7c58c9877322bd763f51ec33d9d5f154;hpb=80d19a06216c670b34c40f58d3773ff4436cf96a;p=deliverable%2Fbinutils-gdb.git diff --git a/gdb/i386-tdep.h b/gdb/i386-tdep.h index f79a15de7c..bcfa7194bb 100644 --- a/gdb/i386-tdep.h +++ b/gdb/i386-tdep.h @@ -1,7 +1,6 @@ /* Target-dependent code for the i386. - Copyright (C) 2001, 2002, 2003, 2004, 2006, 2007, 2008, 2009, 2010 - Free Software Foundation, Inc. + Copyright (C) 2001-2019 Free Software Foundation, Inc. This file is part of GDB. @@ -21,6 +20,9 @@ #ifndef I386_TDEP_H #define I386_TDEP_H +#include "gdbarch.h" +#include "infrun.h" + struct frame_info; struct gdbarch; struct reggroup; @@ -53,50 +55,15 @@ enum struct_return 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 { /* 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; - - /* Classify TYPE according to calling conventions, and store - the result in CLASS. Used on amd64 only. */ - void (*classify) (struct type *type, enum amd64_reg_class class[2]); - - /* 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; - /* Floating-point registers. */ - struct regset *fpregset; size_t sizeof_fpregset; /* Register number for %st(0). The register numbers for the other @@ -104,13 +71,146 @@ struct gdbarch_tdep absence of an FPU. */ int st0_regnum; + /* Number of MMX registers. */ + int num_mmx_regs; + /* Register number for %mm0. Set this to -1 to indicate the absence of MMX support. */ int mm0_regnum; + /* Number of pseudo YMM registers. */ + int num_ymm_regs; + + /* Register number for %ymm0. Set this to -1 to indicate the absence + of pseudo YMM register support. */ + int ymm0_regnum; + + /* Number of AVX512 OpMask registers (K-registers) */ + int num_k_regs; + + /* Register number for %k0. Set this to -1 to indicate the absence + of AVX512 OpMask register support. */ + int k0_regnum; + + /* Number of pseudo ZMM registers ($zmm0-$zmm31). */ + int num_zmm_regs; + + /* Register number for %zmm0. Set this to -1 to indicate the absence + of pseudo ZMM register support. */ + int zmm0_regnum; + + /* Number of byte registers. */ + int num_byte_regs; + + /* Register pseudo number for %al. */ + int al_regnum; + + /* Number of pseudo word registers. */ + int num_word_regs; + + /* Register number for %ax. */ + int ax_regnum; + + /* Number of pseudo dword registers. */ + int num_dword_regs; + + /* Register number for %eax. Set this to -1 to indicate the absence + of pseudo dword register support. */ + int eax_regnum; + + /* Number of core registers. */ + int num_core_regs; + /* Number of SSE registers. */ int num_xmm_regs; + /* Number of SSE registers added in AVX512. */ + int num_xmm_avx512_regs; + + /* Register number of XMM16, the first XMM register added in AVX512. */ + int xmm16_regnum; + + /* Number of YMM registers added in AVX512. */ + int num_ymm_avx512_regs; + + /* Register number of YMM16, the first YMM register added in AVX512. */ + int ymm16_regnum; + + /* 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; + + /* Offset of XCR0 in XSAVE extended state. */ + int xsave_xcr0_offset; + + /* Register names. */ + const char **register_names; + + /* Register number for %ymm0h. Set this to -1 to indicate the absence + of upper YMM register support. */ + int ymm0h_regnum; + + /* Upper YMM register names. Only used for tdesc_numbered_register. */ + const char **ymmh_register_names; + + /* Register number for %ymm16h. Set this to -1 to indicate the absence + of support for YMM16-31. */ + int ymm16h_regnum; + + /* YMM16-31 register names. Only used for tdesc_numbered_register. */ + const char **ymm16h_register_names; + + /* Register number for %bnd0r. Set this to -1 to indicate the absence + bound registers. */ + int bnd0r_regnum; + + /* Register number for pseudo register %bnd0. Set this to -1 to indicate the absence + bound registers. */ + int bnd0_regnum; + + /* Register number for %bndcfgu. Set this to -1 to indicate the absence + bound control registers. */ + int bndcfgu_regnum; + + /* MPX register names. Only used for tdesc_numbered_register. */ + const char **mpx_register_names; + + /* Register number for %zmm0h. Set this to -1 to indicate the absence + of ZMM_HI256 register support. */ + int zmm0h_regnum; + + /* OpMask register names. */ + const char **k_register_names; + + /* ZMM register names. Only used for tdesc_numbered_register. */ + const char **zmmh_register_names; + + /* XMM16-31 register names. Only used for tdesc_numbered_register. */ + const char **xmm_avx512_register_names; + + /* 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. */ + gdbarch_register_reggroup_p_ftype *register_reggroup_p; + /* Offset of saved PC in jmp_buf. */ int jb_pc_offset; @@ -137,11 +237,11 @@ struct gdbarch_tdep int sc_sp_offset; /* ISA-specific data types. */ - struct type *i386_eflags_type; - struct type *i386_mxcsr_type; struct type *i386_mmx_type; - struct type *i386_sse_type; + struct type *i386_ymm_type; + struct type *i386_zmm_type; struct type *i387_ext_type; + struct type *i386_bnd_type; /* Process record/replay target. */ /* The map for registers because the AMD64's registers order @@ -153,11 +253,14 @@ struct gdbarch_tdep 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. */ @@ -186,7 +289,21 @@ enum i386_regnum I386_ES_REGNUM, /* %es */ I386_FS_REGNUM, /* %fs */ I386_GS_REGNUM, /* %gs */ - I386_ST0_REGNUM /* %st(0) */ + I386_ST0_REGNUM, /* %st(0) */ + I386_MXCSR_REGNUM = 40, /* %mxcsr */ + I386_YMM0H_REGNUM, /* %ymm0h */ + 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. */ @@ -220,26 +337,57 @@ enum record_i386_regnum }; #define I386_NUM_GREGS 16 -#define I386_NUM_FREGS 16 #define I386_NUM_XREGS 9 -#define I386_SSE_NUM_REGS (I386_NUM_GREGS + I386_NUM_FREGS \ - + I386_NUM_XREGS) +#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 *i386_eflags_type (struct gdbarch *gdbarch); -extern struct type *i386_mxcsr_type (struct gdbarch *gdbarch); -extern struct type *i386_mmx_type (struct gdbarch *gdbarch); -extern struct type *i386_sse_type (struct gdbarch *gdbarch); extern struct type *i387_ext_type (struct gdbarch *gdbarch); +/* Checks of different pseudo-registers. */ +extern int i386_byte_regnum_p (struct gdbarch *gdbarch, int regnum); +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); +extern struct type *i386_pseudo_register_type (struct gdbarch *gdbarch, + int regnum); + +extern void i386_pseudo_register_read_into_value (struct gdbarch *gdbarch, + readable_regcache *regcache, + int regnum, + struct value *result); + +extern void i386_pseudo_register_write (struct gdbarch *gdbarch, + 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. */ -#define I386_SEL_KPL 0x0000 /* Kernel Privilige Level. */ +#define I386_SEL_UPL 0x0003 /* User Privilige Level. */ +#define I386_SEL_KPL 0x0000 /* Kernel Privilige Level. */ /* The length of the longest i386 instruction (according to include/asm-i386/kprobes.h in Linux 2.6. */ @@ -248,14 +396,12 @@ extern struct type *i387_ext_type (struct gdbarch *gdbarch); /* Functions exported from i386-tdep.c. */ extern CORE_ADDR i386_pe_skip_trampoline_code (struct frame_info *frame, CORE_ADDR pc, char *name); -extern CORE_ADDR i386_skip_main_prologue (struct gdbarch *gdbarch, CORE_ADDR pc); +extern CORE_ADDR i386_skip_main_prologue (struct gdbarch *gdbarch, + CORE_ADDR pc); /* Return whether the THIS_FRAME corresponds to a sigtramp routine. */ extern int i386_sigtramp_p (struct frame_info *this_frame); -/* Return the name of register REGNUM. */ -extern char const *i386_register_name (struct gdbarch * gdbarch, int regnum); - /* 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); @@ -267,21 +413,24 @@ extern void i386_supply_gregset (const struct regset *regset, 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; + +/* Floating-point register set. */ +extern const struct regset i386_fpregset; -/* 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); +/* 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); +typedef buf_displaced_step_closure i386_displaced_step_closure; +extern struct displaced_step_closure *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, @@ -293,11 +442,20 @@ 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); +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); -/* 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; @@ -310,4 +468,12 @@ extern int i386nbsd_sc_reg_offset[]; extern int i386obsd_sc_reg_offset[]; extern int i386bsd_sc_reg_offset[]; +/* SystemTap related functions. */ + +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); + #endif /* i386-tdep.h */