-/* Target-dependent code for GDB, the GNU debugger.
- Copyright 2001, 2002, 2003
+/* Target-dependent code for the i386.
+
+ Copyright (C) 2001, 2002, 2003, 2004, 2006, 2007, 2008, 2009, 2010
Free Software Foundation, Inc.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
+ the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
#ifndef I386_TDEP_H
#define I386_TDEP_H
-struct reggroup;
-struct gdbarch;
struct frame_info;
+struct gdbarch;
+struct reggroup;
+struct regset;
+struct regcache;
/* GDB's i386 target supports both the 32-bit Intel Architecture
(IA-32) and the 64-bit AMD x86-64 architecture. Internally it uses
- SSE control register
The general purpose registers for the x86-64 architecture are quite
- different from IA-32. Therefore, the FP0_REGNUM target macro
+ different from IA-32. Therefore, gdbarch_fp0_regnum
determines the register number at which the FPU data registers
start. The number of FPU data and control registers is the same
for both architectures. The number of SSE registers however,
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
+ registers follow from this one. Set this to -1 to indicate the
+ absence of an FPU. */
+ int st0_regnum;
+
+ /* Register number for %mm0. Set this to -1 to indicate the absence
+ of MMX support. */
+ int mm0_regnum;
+
/* Number of SSE registers. */
int num_xmm_regs;
CORE_ADDR sigtramp_start;
CORE_ADDR sigtramp_end;
+ /* Detect sigtramp. */
+ int (*sigtramp_p) (struct frame_info *);
+
/* Get address of sigcontext for sigtramp. */
CORE_ADDR (*sigcontext_addr) (struct frame_info *);
is deprecated, please use `sc_reg_offset' instead. */
int sc_pc_offset;
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 *i387_ext_type;
+
+ /* 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;
+ /* Parse intx80 args. */
+ int (*i386_intx80_record) (struct regcache *regcache);
+ /* Parse sysenter args. */
+ int (*i386_sysenter_record) (struct regcache *regcache);
+ /* Parse syscall args. */
+ int (*i386_syscall_record) (struct regcache *regcache);
};
/* Floating-point registers. */
-#define FPU_REG_RAW_SIZE 10
-
/* All FPU control regusters (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. */
-/* "Generic" floating point control register. */
-#define FPC_REGNUM (FP0_REGNUM + 8)
-
-/* FPU control word. */
-#define FCTRL_REGNUM FPC_REGNUM
-
-/* FPU status word. */
-#define FSTAT_REGNUM (FPC_REGNUM + 1)
-
-/* FPU register tag word. */
-#define FTAG_REGNUM (FPC_REGNUM + 2)
-
-/* FPU instruction's code segment selector, called "FPU Instruction
- Pointer Selector" in the IA-32 manuals. */
-#define FISEG_REGNUM (FPC_REGNUM + 3)
-
-/* FPU instruction's offset within segment. */
-#define FIOFF_REGNUM (FPC_REGNUM + 4)
-
-/* FPU operand's data segment. */
-#define FOSEG_REGNUM (FPC_REGNUM + 5)
-
-/* FPU operand's offset within segment */
-#define FOOFF_REGNUM (FPC_REGNUM + 6)
-
-/* FPU opcode, bottom eleven bits. */
-#define FOP_REGNUM (FPC_REGNUM + 7)
-
/* Return non-zero if REGNUM matches the FP register and the FP
register set is active. */
-extern int i386_fp_regnum_p (int regnum);
-extern int i386_fpc_regnum_p (int regnum);
-
-/* SSE registers. */
-
-/* First SSE data register. */
-#define XMM0_REGNUM (FPC_REGNUM + 8)
-
-/* SSE control/status register. */
-#define MXCSR_REGNUM \
- (XMM0_REGNUM + gdbarch_tdep (current_gdbarch)->num_xmm_regs)
+extern int i386_fp_regnum_p (struct gdbarch *, int);
+extern int i386_fpc_regnum_p (struct gdbarch *, int);
-/* Return non-zero if REGNUM matches the SSE register and the SSE
- register set is active. */
-extern int i386_sse_regnum_p (int regnum);
-extern int i386_mxcsr_regnum_p (int regnum);
+/* Register numbers of various important registers. */
-/* FIXME: kettenis/2001-11-24: Obsolete macro's. */
-#define FCS_REGNUM FISEG_REGNUM
-#define FCOFF_REGNUM FIOFF_REGNUM
-#define FDS_REGNUM FOSEG_REGNUM
-#define FDOFF_REGNUM FOOFF_REGNUM
+enum i386_regnum
+{
+ I386_EAX_REGNUM, /* %eax */
+ I386_ECX_REGNUM, /* %ecx */
+ I386_EDX_REGNUM, /* %edx */
+ I386_EBX_REGNUM, /* %ebx */
+ I386_ESP_REGNUM, /* %esp */
+ I386_EBP_REGNUM, /* %ebp */
+ I386_ESI_REGNUM, /* %esi */
+ I386_EDI_REGNUM, /* %edi */
+ I386_EIP_REGNUM, /* %eip */
+ I386_EFLAGS_REGNUM, /* %eflags */
+ I386_CS_REGNUM, /* %cs */
+ I386_SS_REGNUM, /* %ss */
+ I386_DS_REGNUM, /* %ds */
+ I386_ES_REGNUM, /* %es */
+ I386_FS_REGNUM, /* %fs */
+ I386_GS_REGNUM, /* %gs */
+ I386_ST0_REGNUM /* %st(0) */
+};
-/* Register numbers of various important registers. */
+/* Register numbers of RECORD_REGMAP. */
-#define I386_EAX_REGNUM 0 /* %eax */
-#define I386_EDX_REGNUM 2 /* %edx */
-#define I386_ESP_REGNUM 4 /* %esp */
-#define I386_EBP_REGNUM 5 /* %ebp */
-#define I386_EIP_REGNUM 8 /* %eip */
-#define I386_EFLAGS_REGNUM 9 /* %eflags */
-#define I386_ST0_REGNUM 16 /* %st(0) */
+enum record_i386_regnum
+{
+ X86_RECORD_REAX_REGNUM,
+ X86_RECORD_RECX_REGNUM,
+ X86_RECORD_REDX_REGNUM,
+ X86_RECORD_REBX_REGNUM,
+ X86_RECORD_RESP_REGNUM,
+ X86_RECORD_REBP_REGNUM,
+ X86_RECORD_RESI_REGNUM,
+ X86_RECORD_REDI_REGNUM,
+ X86_RECORD_R8_REGNUM,
+ X86_RECORD_R9_REGNUM,
+ X86_RECORD_R10_REGNUM,
+ X86_RECORD_R11_REGNUM,
+ X86_RECORD_R12_REGNUM,
+ X86_RECORD_R13_REGNUM,
+ X86_RECORD_R14_REGNUM,
+ X86_RECORD_R15_REGNUM,
+ X86_RECORD_REIP_REGNUM,
+ X86_RECORD_EFLAGS_REGNUM,
+ X86_RECORD_CS_REGNUM,
+ X86_RECORD_SS_REGNUM,
+ X86_RECORD_DS_REGNUM,
+ X86_RECORD_ES_REGNUM,
+ X86_RECORD_FS_REGNUM,
+ X86_RECORD_GS_REGNUM,
+};
#define I386_NUM_GREGS 16
#define I386_NUM_FREGS 16
/* Size of the largest register. */
#define I386_MAX_REGISTER_SIZE 16
+/* 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);
+
+/* 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. */
+
+/* The length of the longest i386 instruction (according to
+ include/asm-i386/kprobes.h in Linux 2.6. */
+#define I386_MAX_INSN_LEN (16)
+
/* Functions exported from i386-tdep.c. */
-extern CORE_ADDR i386_pe_skip_trampoline_code (CORE_ADDR pc, char *name);
-extern int i386_frameless_signal_p (struct frame_info *frame);
+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);
-/* Return the name of register REG. */
-extern char const *i386_register_name (int reg);
+/* 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);
+/* Supply register REGNUM from the general-purpose register set REGSET
+ to register cache REGCACHE. If REGNUM is -1, do this for all
+ registers in REGSET. */
+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);
+
+/* 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);
+
+
+extern void i386_displaced_step_fixup (struct gdbarch *gdbarch,
+ struct displaced_step_closure *closure,
+ CORE_ADDR from, CORE_ADDR to,
+ struct 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 *);
+
+extern int i386_process_record (struct gdbarch *gdbarch,
+ struct regcache *regcache, CORE_ADDR addr);
\f
/* Functions and variables exported from i386bsd-tdep.c. */
extern void i386bsd_init_abi (struct gdbarch_info, struct gdbarch *);
-extern CORE_ADDR i386fbsd_sigtramp_start;
-extern CORE_ADDR i386fbsd_sigtramp_end;
-extern CORE_ADDR i386obsd_sigtramp_start;
-extern CORE_ADDR i386obsd_sigtramp_end;
+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 i386bsd_sc_reg_offset[];
#endif /* i386-tdep.h */
-
projects / deliverable / binutils-gdb.git / blobdiff