15796c8dcSSimon Schubert /* Target-dependent code for the i386. 25796c8dcSSimon Schubert 3*a45ae5f8SJohn Marino Copyright (C) 2001-2004, 2006-2012 Free Software Foundation, Inc. 45796c8dcSSimon Schubert 55796c8dcSSimon Schubert This file is part of GDB. 65796c8dcSSimon Schubert 75796c8dcSSimon Schubert This program is free software; you can redistribute it and/or modify 85796c8dcSSimon Schubert it under the terms of the GNU General Public License as published by 95796c8dcSSimon Schubert the Free Software Foundation; either version 3 of the License, or 105796c8dcSSimon Schubert (at your option) any later version. 115796c8dcSSimon Schubert 125796c8dcSSimon Schubert This program is distributed in the hope that it will be useful, 135796c8dcSSimon Schubert but WITHOUT ANY WARRANTY; without even the implied warranty of 145796c8dcSSimon Schubert MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 155796c8dcSSimon Schubert GNU General Public License for more details. 165796c8dcSSimon Schubert 175796c8dcSSimon Schubert You should have received a copy of the GNU General Public License 185796c8dcSSimon Schubert along with this program. If not, see <http://www.gnu.org/licenses/>. */ 195796c8dcSSimon Schubert 205796c8dcSSimon Schubert #ifndef I386_TDEP_H 215796c8dcSSimon Schubert #define I386_TDEP_H 225796c8dcSSimon Schubert 235796c8dcSSimon Schubert struct frame_info; 245796c8dcSSimon Schubert struct gdbarch; 255796c8dcSSimon Schubert struct reggroup; 265796c8dcSSimon Schubert struct regset; 275796c8dcSSimon Schubert struct regcache; 285796c8dcSSimon Schubert 295796c8dcSSimon Schubert /* GDB's i386 target supports both the 32-bit Intel Architecture 305796c8dcSSimon Schubert (IA-32) and the 64-bit AMD x86-64 architecture. Internally it uses 315796c8dcSSimon Schubert a similar register layout for both. 325796c8dcSSimon Schubert 335796c8dcSSimon Schubert - General purpose registers 345796c8dcSSimon Schubert - FPU data registers 355796c8dcSSimon Schubert - FPU control registers 365796c8dcSSimon Schubert - SSE data registers 375796c8dcSSimon Schubert - SSE control register 385796c8dcSSimon Schubert 395796c8dcSSimon Schubert The general purpose registers for the x86-64 architecture are quite 405796c8dcSSimon Schubert different from IA-32. Therefore, gdbarch_fp0_regnum 415796c8dcSSimon Schubert determines the register number at which the FPU data registers 425796c8dcSSimon Schubert start. The number of FPU data and control registers is the same 435796c8dcSSimon Schubert for both architectures. The number of SSE registers however, 445796c8dcSSimon Schubert differs and is determined by the num_xmm_regs member of `struct 455796c8dcSSimon Schubert gdbarch_tdep'. */ 465796c8dcSSimon Schubert 475796c8dcSSimon Schubert /* Convention for returning structures. */ 485796c8dcSSimon Schubert 495796c8dcSSimon Schubert enum struct_return 505796c8dcSSimon Schubert { 515796c8dcSSimon Schubert pcc_struct_return, /* Return "short" structures in memory. */ 525796c8dcSSimon Schubert reg_struct_return /* Return "short" structures in registers. */ 535796c8dcSSimon Schubert }; 545796c8dcSSimon Schubert 55cf7f2e2dSJohn Marino /* Register classes as defined in the AMD x86-64 psABI. */ 56cf7f2e2dSJohn Marino 57cf7f2e2dSJohn Marino enum amd64_reg_class 58cf7f2e2dSJohn Marino { 59cf7f2e2dSJohn Marino AMD64_INTEGER, 60cf7f2e2dSJohn Marino AMD64_SSE, 61cf7f2e2dSJohn Marino AMD64_SSEUP, 62cf7f2e2dSJohn Marino AMD64_X87, 63cf7f2e2dSJohn Marino AMD64_X87UP, 64cf7f2e2dSJohn Marino AMD64_COMPLEX_X87, 65cf7f2e2dSJohn Marino AMD64_NO_CLASS, 66cf7f2e2dSJohn Marino AMD64_MEMORY 67cf7f2e2dSJohn Marino }; 68cf7f2e2dSJohn Marino 695796c8dcSSimon Schubert /* i386 architecture specific information. */ 705796c8dcSSimon Schubert struct gdbarch_tdep 715796c8dcSSimon Schubert { 725796c8dcSSimon Schubert /* General-purpose registers. */ 735796c8dcSSimon Schubert struct regset *gregset; 745796c8dcSSimon Schubert int *gregset_reg_offset; 755796c8dcSSimon Schubert int gregset_num_regs; 765796c8dcSSimon Schubert size_t sizeof_gregset; 775796c8dcSSimon Schubert 78cf7f2e2dSJohn Marino /* The general-purpose registers used to pass integers when making 79cf7f2e2dSJohn Marino function calls. This only applies to amd64, as all parameters 80cf7f2e2dSJohn Marino are passed through the stack on x86. */ 81cf7f2e2dSJohn Marino int call_dummy_num_integer_regs; 82cf7f2e2dSJohn Marino int *call_dummy_integer_regs; 83cf7f2e2dSJohn Marino 84cf7f2e2dSJohn Marino /* Used on amd64 only. Classify TYPE according to calling conventions, 85cf7f2e2dSJohn Marino and store the result in CLASS. */ 86cf7f2e2dSJohn Marino void (*classify) (struct type *type, enum amd64_reg_class class[2]); 87cf7f2e2dSJohn Marino 88cf7f2e2dSJohn Marino /* Used on amd64 only. Non-zero if the first few MEMORY arguments 89cf7f2e2dSJohn Marino should be passed by pointer. 90cf7f2e2dSJohn Marino 91cf7f2e2dSJohn Marino More precisely, MEMORY arguments are passed through the stack. 92cf7f2e2dSJohn Marino But certain architectures require that their address be passed 93cf7f2e2dSJohn Marino by register as well, if there are still some integer registers 94cf7f2e2dSJohn Marino available for argument passing. */ 95cf7f2e2dSJohn Marino int memory_args_by_pointer; 96cf7f2e2dSJohn Marino 97cf7f2e2dSJohn Marino /* Used on amd64 only. 98cf7f2e2dSJohn Marino 99cf7f2e2dSJohn Marino If non-zero, then the callers of a function are expected to reserve 100cf7f2e2dSJohn Marino some space in the stack just before the area where the PC is saved 101cf7f2e2dSJohn Marino so that the callee may save the integer-parameter registers there. 102cf7f2e2dSJohn Marino The amount of space is dependent on the list of registers used for 103cf7f2e2dSJohn Marino integer parameter passing (see component call_dummy_num_integer_regs 104cf7f2e2dSJohn Marino above). */ 105cf7f2e2dSJohn Marino int integer_param_regs_saved_in_caller_frame; 106cf7f2e2dSJohn Marino 1075796c8dcSSimon Schubert /* Floating-point registers. */ 1085796c8dcSSimon Schubert struct regset *fpregset; 1095796c8dcSSimon Schubert size_t sizeof_fpregset; 1105796c8dcSSimon Schubert 111cf7f2e2dSJohn Marino /* XSAVE extended state. */ 112cf7f2e2dSJohn Marino struct regset *xstateregset; 113cf7f2e2dSJohn Marino 1145796c8dcSSimon Schubert /* Register number for %st(0). The register numbers for the other 1155796c8dcSSimon Schubert registers follow from this one. Set this to -1 to indicate the 1165796c8dcSSimon Schubert absence of an FPU. */ 1175796c8dcSSimon Schubert int st0_regnum; 1185796c8dcSSimon Schubert 119cf7f2e2dSJohn Marino /* Number of MMX registers. */ 120cf7f2e2dSJohn Marino int num_mmx_regs; 121cf7f2e2dSJohn Marino 1225796c8dcSSimon Schubert /* Register number for %mm0. Set this to -1 to indicate the absence 1235796c8dcSSimon Schubert of MMX support. */ 1245796c8dcSSimon Schubert int mm0_regnum; 1255796c8dcSSimon Schubert 126cf7f2e2dSJohn Marino /* Number of pseudo YMM registers. */ 127cf7f2e2dSJohn Marino int num_ymm_regs; 128cf7f2e2dSJohn Marino 129cf7f2e2dSJohn Marino /* Register number for %ymm0. Set this to -1 to indicate the absence 130cf7f2e2dSJohn Marino of pseudo YMM register support. */ 131cf7f2e2dSJohn Marino int ymm0_regnum; 132cf7f2e2dSJohn Marino 133cf7f2e2dSJohn Marino /* Number of byte registers. */ 134cf7f2e2dSJohn Marino int num_byte_regs; 135cf7f2e2dSJohn Marino 136cf7f2e2dSJohn Marino /* Register pseudo number for %al. */ 137cf7f2e2dSJohn Marino int al_regnum; 138cf7f2e2dSJohn Marino 139cf7f2e2dSJohn Marino /* Number of pseudo word registers. */ 140cf7f2e2dSJohn Marino int num_word_regs; 141cf7f2e2dSJohn Marino 142cf7f2e2dSJohn Marino /* Register number for %ax. */ 143cf7f2e2dSJohn Marino int ax_regnum; 144cf7f2e2dSJohn Marino 145cf7f2e2dSJohn Marino /* Number of pseudo dword registers. */ 146cf7f2e2dSJohn Marino int num_dword_regs; 147cf7f2e2dSJohn Marino 148cf7f2e2dSJohn Marino /* Register number for %eax. Set this to -1 to indicate the absence 149cf7f2e2dSJohn Marino of pseudo dword register support. */ 150cf7f2e2dSJohn Marino int eax_regnum; 151cf7f2e2dSJohn Marino 152cf7f2e2dSJohn Marino /* Number of core registers. */ 153cf7f2e2dSJohn Marino int num_core_regs; 154cf7f2e2dSJohn Marino 1555796c8dcSSimon Schubert /* Number of SSE registers. */ 1565796c8dcSSimon Schubert int num_xmm_regs; 1575796c8dcSSimon Schubert 158cf7f2e2dSJohn Marino /* Bits of the extended control register 0 (the XFEATURE_ENABLED_MASK 159c50c785cSJohn Marino register), excluding the x87 bit, which are supported by this GDB. */ 160c50c785cSJohn Marino 161cf7f2e2dSJohn Marino uint64_t xcr0; 162cf7f2e2dSJohn Marino 163cf7f2e2dSJohn Marino /* Offset of XCR0 in XSAVE extended state. */ 164cf7f2e2dSJohn Marino int xsave_xcr0_offset; 165cf7f2e2dSJohn Marino 166cf7f2e2dSJohn Marino /* Register names. */ 167cf7f2e2dSJohn Marino const char **register_names; 168cf7f2e2dSJohn Marino 169cf7f2e2dSJohn Marino /* Register number for %ymm0h. Set this to -1 to indicate the absence 170cf7f2e2dSJohn Marino of upper YMM register support. */ 171cf7f2e2dSJohn Marino int ymm0h_regnum; 172cf7f2e2dSJohn Marino 173cf7f2e2dSJohn Marino /* Upper YMM register names. Only used for tdesc_numbered_register. */ 174cf7f2e2dSJohn Marino const char **ymmh_register_names; 175cf7f2e2dSJohn Marino 176cf7f2e2dSJohn Marino /* Target description. */ 177cf7f2e2dSJohn Marino const struct target_desc *tdesc; 178cf7f2e2dSJohn Marino 179cf7f2e2dSJohn Marino /* Register group function. */ 180cf7f2e2dSJohn Marino const void *register_reggroup_p; 181cf7f2e2dSJohn Marino 1825796c8dcSSimon Schubert /* Offset of saved PC in jmp_buf. */ 1835796c8dcSSimon Schubert int jb_pc_offset; 1845796c8dcSSimon Schubert 1855796c8dcSSimon Schubert /* Convention for returning structures. */ 1865796c8dcSSimon Schubert enum struct_return struct_return; 1875796c8dcSSimon Schubert 1885796c8dcSSimon Schubert /* Address range where sigtramp lives. */ 1895796c8dcSSimon Schubert CORE_ADDR sigtramp_start; 1905796c8dcSSimon Schubert CORE_ADDR sigtramp_end; 1915796c8dcSSimon Schubert 1925796c8dcSSimon Schubert /* Detect sigtramp. */ 1935796c8dcSSimon Schubert int (*sigtramp_p) (struct frame_info *); 1945796c8dcSSimon Schubert 1955796c8dcSSimon Schubert /* Get address of sigcontext for sigtramp. */ 1965796c8dcSSimon Schubert CORE_ADDR (*sigcontext_addr) (struct frame_info *); 1975796c8dcSSimon Schubert 1985796c8dcSSimon Schubert /* Offset of registers in `struct sigcontext'. */ 1995796c8dcSSimon Schubert int *sc_reg_offset; 2005796c8dcSSimon Schubert int sc_num_regs; 2015796c8dcSSimon Schubert 2025796c8dcSSimon Schubert /* Offset of saved PC and SP in `struct sigcontext'. Usage of these 2035796c8dcSSimon Schubert is deprecated, please use `sc_reg_offset' instead. */ 2045796c8dcSSimon Schubert int sc_pc_offset; 2055796c8dcSSimon Schubert int sc_sp_offset; 2065796c8dcSSimon Schubert 2075796c8dcSSimon Schubert /* ISA-specific data types. */ 2085796c8dcSSimon Schubert struct type *i386_mmx_type; 209cf7f2e2dSJohn Marino struct type *i386_ymm_type; 2105796c8dcSSimon Schubert struct type *i387_ext_type; 2115796c8dcSSimon Schubert 2125796c8dcSSimon Schubert /* Process record/replay target. */ 2135796c8dcSSimon Schubert /* The map for registers because the AMD64's registers order 2145796c8dcSSimon Schubert in GDB is not same as I386 instructions. */ 2155796c8dcSSimon Schubert const int *record_regmap; 2165796c8dcSSimon Schubert /* Parse intx80 args. */ 2175796c8dcSSimon Schubert int (*i386_intx80_record) (struct regcache *regcache); 2185796c8dcSSimon Schubert /* Parse sysenter args. */ 2195796c8dcSSimon Schubert int (*i386_sysenter_record) (struct regcache *regcache); 2205796c8dcSSimon Schubert /* Parse syscall args. */ 2215796c8dcSSimon Schubert int (*i386_syscall_record) (struct regcache *regcache); 2225796c8dcSSimon Schubert }; 2235796c8dcSSimon Schubert 2245796c8dcSSimon Schubert /* Floating-point registers. */ 2255796c8dcSSimon Schubert 2265796c8dcSSimon Schubert /* All FPU control regusters (except for FIOFF and FOOFF) are 16-bit 2275796c8dcSSimon Schubert (at most) in the FPU, but are zero-extended to 32 bits in GDB's 2285796c8dcSSimon Schubert register cache. */ 2295796c8dcSSimon Schubert 2305796c8dcSSimon Schubert /* Return non-zero if REGNUM matches the FP register and the FP 2315796c8dcSSimon Schubert register set is active. */ 2325796c8dcSSimon Schubert extern int i386_fp_regnum_p (struct gdbarch *, int); 2335796c8dcSSimon Schubert extern int i386_fpc_regnum_p (struct gdbarch *, int); 2345796c8dcSSimon Schubert 2355796c8dcSSimon Schubert /* Register numbers of various important registers. */ 2365796c8dcSSimon Schubert 2375796c8dcSSimon Schubert enum i386_regnum 2385796c8dcSSimon Schubert { 2395796c8dcSSimon Schubert I386_EAX_REGNUM, /* %eax */ 2405796c8dcSSimon Schubert I386_ECX_REGNUM, /* %ecx */ 2415796c8dcSSimon Schubert I386_EDX_REGNUM, /* %edx */ 2425796c8dcSSimon Schubert I386_EBX_REGNUM, /* %ebx */ 2435796c8dcSSimon Schubert I386_ESP_REGNUM, /* %esp */ 2445796c8dcSSimon Schubert I386_EBP_REGNUM, /* %ebp */ 2455796c8dcSSimon Schubert I386_ESI_REGNUM, /* %esi */ 2465796c8dcSSimon Schubert I386_EDI_REGNUM, /* %edi */ 2475796c8dcSSimon Schubert I386_EIP_REGNUM, /* %eip */ 2485796c8dcSSimon Schubert I386_EFLAGS_REGNUM, /* %eflags */ 2495796c8dcSSimon Schubert I386_CS_REGNUM, /* %cs */ 2505796c8dcSSimon Schubert I386_SS_REGNUM, /* %ss */ 2515796c8dcSSimon Schubert I386_DS_REGNUM, /* %ds */ 2525796c8dcSSimon Schubert I386_ES_REGNUM, /* %es */ 2535796c8dcSSimon Schubert I386_FS_REGNUM, /* %fs */ 2545796c8dcSSimon Schubert I386_GS_REGNUM, /* %gs */ 255cf7f2e2dSJohn Marino I386_ST0_REGNUM, /* %st(0) */ 256cf7f2e2dSJohn Marino I386_MXCSR_REGNUM = 40, /* %mxcsr */ 257cf7f2e2dSJohn Marino I386_YMM0H_REGNUM, /* %ymm0h */ 258cf7f2e2dSJohn Marino I386_YMM7H_REGNUM = I386_YMM0H_REGNUM + 7 2595796c8dcSSimon Schubert }; 2605796c8dcSSimon Schubert 2615796c8dcSSimon Schubert /* Register numbers of RECORD_REGMAP. */ 2625796c8dcSSimon Schubert 2635796c8dcSSimon Schubert enum record_i386_regnum 2645796c8dcSSimon Schubert { 2655796c8dcSSimon Schubert X86_RECORD_REAX_REGNUM, 2665796c8dcSSimon Schubert X86_RECORD_RECX_REGNUM, 2675796c8dcSSimon Schubert X86_RECORD_REDX_REGNUM, 2685796c8dcSSimon Schubert X86_RECORD_REBX_REGNUM, 2695796c8dcSSimon Schubert X86_RECORD_RESP_REGNUM, 2705796c8dcSSimon Schubert X86_RECORD_REBP_REGNUM, 2715796c8dcSSimon Schubert X86_RECORD_RESI_REGNUM, 2725796c8dcSSimon Schubert X86_RECORD_REDI_REGNUM, 2735796c8dcSSimon Schubert X86_RECORD_R8_REGNUM, 2745796c8dcSSimon Schubert X86_RECORD_R9_REGNUM, 2755796c8dcSSimon Schubert X86_RECORD_R10_REGNUM, 2765796c8dcSSimon Schubert X86_RECORD_R11_REGNUM, 2775796c8dcSSimon Schubert X86_RECORD_R12_REGNUM, 2785796c8dcSSimon Schubert X86_RECORD_R13_REGNUM, 2795796c8dcSSimon Schubert X86_RECORD_R14_REGNUM, 2805796c8dcSSimon Schubert X86_RECORD_R15_REGNUM, 2815796c8dcSSimon Schubert X86_RECORD_REIP_REGNUM, 2825796c8dcSSimon Schubert X86_RECORD_EFLAGS_REGNUM, 2835796c8dcSSimon Schubert X86_RECORD_CS_REGNUM, 2845796c8dcSSimon Schubert X86_RECORD_SS_REGNUM, 2855796c8dcSSimon Schubert X86_RECORD_DS_REGNUM, 2865796c8dcSSimon Schubert X86_RECORD_ES_REGNUM, 2875796c8dcSSimon Schubert X86_RECORD_FS_REGNUM, 2885796c8dcSSimon Schubert X86_RECORD_GS_REGNUM, 2895796c8dcSSimon Schubert }; 2905796c8dcSSimon Schubert 2915796c8dcSSimon Schubert #define I386_NUM_GREGS 16 2925796c8dcSSimon Schubert #define I386_NUM_XREGS 9 2935796c8dcSSimon Schubert 294cf7f2e2dSJohn Marino #define I386_SSE_NUM_REGS (I386_MXCSR_REGNUM + 1) 295cf7f2e2dSJohn Marino #define I386_AVX_NUM_REGS (I386_YMM7H_REGNUM + 1) 2965796c8dcSSimon Schubert 2975796c8dcSSimon Schubert /* Size of the largest register. */ 2985796c8dcSSimon Schubert #define I386_MAX_REGISTER_SIZE 16 2995796c8dcSSimon Schubert 3005796c8dcSSimon Schubert /* Types for i386-specific registers. */ 3015796c8dcSSimon Schubert extern struct type *i387_ext_type (struct gdbarch *gdbarch); 3025796c8dcSSimon Schubert 303cf7f2e2dSJohn Marino /* Checks of different pseudo-registers. */ 304cf7f2e2dSJohn Marino extern int i386_byte_regnum_p (struct gdbarch *gdbarch, int regnum); 305cf7f2e2dSJohn Marino extern int i386_word_regnum_p (struct gdbarch *gdbarch, int regnum); 306cf7f2e2dSJohn Marino extern int i386_dword_regnum_p (struct gdbarch *gdbarch, int regnum); 307cf7f2e2dSJohn Marino extern int i386_xmm_regnum_p (struct gdbarch *gdbarch, int regnum); 308cf7f2e2dSJohn Marino extern int i386_ymm_regnum_p (struct gdbarch *gdbarch, int regnum); 309cf7f2e2dSJohn Marino 310cf7f2e2dSJohn Marino extern const char *i386_pseudo_register_name (struct gdbarch *gdbarch, 311cf7f2e2dSJohn Marino int regnum); 312cf7f2e2dSJohn Marino 313*a45ae5f8SJohn Marino extern void i386_pseudo_register_read_into_value (struct gdbarch *gdbarch, 314cf7f2e2dSJohn Marino struct regcache *regcache, 315c50c785cSJohn Marino int regnum, 316*a45ae5f8SJohn Marino struct value *result); 317*a45ae5f8SJohn Marino 318cf7f2e2dSJohn Marino extern void i386_pseudo_register_write (struct gdbarch *gdbarch, 319cf7f2e2dSJohn Marino struct regcache *regcache, 320cf7f2e2dSJohn Marino int regnum, const gdb_byte *buf); 321cf7f2e2dSJohn Marino 3225796c8dcSSimon Schubert /* Segment selectors. */ 3235796c8dcSSimon Schubert #define I386_SEL_RPL 0x0003 /* Requester's Privilege Level mask. */ 3245796c8dcSSimon Schubert #define I386_SEL_UPL 0x0003 /* User Privilige Level. */ 3255796c8dcSSimon Schubert #define I386_SEL_KPL 0x0000 /* Kernel Privilige Level. */ 3265796c8dcSSimon Schubert 3275796c8dcSSimon Schubert /* The length of the longest i386 instruction (according to 3285796c8dcSSimon Schubert include/asm-i386/kprobes.h in Linux 2.6. */ 3295796c8dcSSimon Schubert #define I386_MAX_INSN_LEN (16) 3305796c8dcSSimon Schubert 3315796c8dcSSimon Schubert /* Functions exported from i386-tdep.c. */ 3325796c8dcSSimon Schubert extern CORE_ADDR i386_pe_skip_trampoline_code (struct frame_info *frame, 3335796c8dcSSimon Schubert CORE_ADDR pc, char *name); 334c50c785cSJohn Marino extern CORE_ADDR i386_skip_main_prologue (struct gdbarch *gdbarch, 335c50c785cSJohn Marino CORE_ADDR pc); 3365796c8dcSSimon Schubert 3375796c8dcSSimon Schubert /* Return whether the THIS_FRAME corresponds to a sigtramp routine. */ 3385796c8dcSSimon Schubert extern int i386_sigtramp_p (struct frame_info *this_frame); 3395796c8dcSSimon Schubert 3405796c8dcSSimon Schubert /* Return non-zero if REGNUM is a member of the specified group. */ 3415796c8dcSSimon Schubert extern int i386_register_reggroup_p (struct gdbarch *gdbarch, int regnum, 3425796c8dcSSimon Schubert struct reggroup *group); 3435796c8dcSSimon Schubert 3445796c8dcSSimon Schubert /* Supply register REGNUM from the general-purpose register set REGSET 3455796c8dcSSimon Schubert to register cache REGCACHE. If REGNUM is -1, do this for all 3465796c8dcSSimon Schubert registers in REGSET. */ 3475796c8dcSSimon Schubert extern void i386_supply_gregset (const struct regset *regset, 3485796c8dcSSimon Schubert struct regcache *regcache, int regnum, 3495796c8dcSSimon Schubert const void *gregs, size_t len); 3505796c8dcSSimon Schubert 3515796c8dcSSimon Schubert /* Collect register REGNUM from the register cache REGCACHE and store 3525796c8dcSSimon Schubert it in the buffer specified by GREGS and LEN as described by the 3535796c8dcSSimon Schubert general-purpose register set REGSET. If REGNUM is -1, do this for 3545796c8dcSSimon Schubert all registers in REGSET. */ 3555796c8dcSSimon Schubert extern void i386_collect_gregset (const struct regset *regset, 3565796c8dcSSimon Schubert const struct regcache *regcache, 3575796c8dcSSimon Schubert int regnum, void *gregs, size_t len); 3585796c8dcSSimon Schubert 3595796c8dcSSimon Schubert /* Return the appropriate register set for the core section identified 3605796c8dcSSimon Schubert by SECT_NAME and SECT_SIZE. */ 3615796c8dcSSimon Schubert extern const struct regset * 3625796c8dcSSimon Schubert i386_regset_from_core_section (struct gdbarch *gdbarch, 3635796c8dcSSimon Schubert const char *sect_name, size_t sect_size); 3645796c8dcSSimon Schubert 3655796c8dcSSimon Schubert 366cf7f2e2dSJohn Marino extern struct displaced_step_closure *i386_displaced_step_copy_insn 367cf7f2e2dSJohn Marino (struct gdbarch *gdbarch, CORE_ADDR from, CORE_ADDR to, 368cf7f2e2dSJohn Marino struct regcache *regs); 3695796c8dcSSimon Schubert extern void i386_displaced_step_fixup (struct gdbarch *gdbarch, 3705796c8dcSSimon Schubert struct displaced_step_closure *closure, 3715796c8dcSSimon Schubert CORE_ADDR from, CORE_ADDR to, 3725796c8dcSSimon Schubert struct regcache *regs); 3735796c8dcSSimon Schubert 3745796c8dcSSimon Schubert /* Initialize a basic ELF architecture variant. */ 3755796c8dcSSimon Schubert extern void i386_elf_init_abi (struct gdbarch_info, struct gdbarch *); 3765796c8dcSSimon Schubert 3775796c8dcSSimon Schubert /* Initialize a SVR4 architecture variant. */ 3785796c8dcSSimon Schubert extern void i386_svr4_init_abi (struct gdbarch_info, struct gdbarch *); 3795796c8dcSSimon Schubert 3805796c8dcSSimon Schubert extern int i386_process_record (struct gdbarch *gdbarch, 3815796c8dcSSimon Schubert struct regcache *regcache, CORE_ADDR addr); 3825796c8dcSSimon Schubert 3835796c8dcSSimon Schubert 3845796c8dcSSimon Schubert /* Functions and variables exported from i386bsd-tdep.c. */ 3855796c8dcSSimon Schubert 3865796c8dcSSimon Schubert extern void i386bsd_init_abi (struct gdbarch_info, struct gdbarch *); 3875796c8dcSSimon Schubert extern CORE_ADDR i386fbsd_sigtramp_start_addr; 3885796c8dcSSimon Schubert extern CORE_ADDR i386fbsd_sigtramp_end_addr; 3895796c8dcSSimon Schubert extern CORE_ADDR i386obsd_sigtramp_start_addr; 3905796c8dcSSimon Schubert extern CORE_ADDR i386obsd_sigtramp_end_addr; 3915796c8dcSSimon Schubert extern int i386fbsd4_sc_reg_offset[]; 3925796c8dcSSimon Schubert extern int i386fbsd_sc_reg_offset[]; 3935796c8dcSSimon Schubert extern int i386nbsd_sc_reg_offset[]; 3945796c8dcSSimon Schubert extern int i386obsd_sc_reg_offset[]; 3955796c8dcSSimon Schubert extern int i386bsd_sc_reg_offset[]; 3965796c8dcSSimon Schubert 3975796c8dcSSimon Schubert #endif /* i386-tdep.h */ 398