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107 lines
2.8 KiB
C
107 lines
2.8 KiB
C
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/* GNU/Linux/x86 specific low level interface, for the in-process
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agent library for GDB.
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Copyright (C) 2010 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include "server.h"
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/* GDB register numbers. */
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enum i386_gdb_regnum
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{
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I386_EAX_REGNUM, /* %eax */
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I386_ECX_REGNUM, /* %ecx */
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I386_EDX_REGNUM, /* %edx */
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I386_EBX_REGNUM, /* %ebx */
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I386_ESP_REGNUM, /* %esp */
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I386_EBP_REGNUM, /* %ebp */
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I386_ESI_REGNUM, /* %esi */
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I386_EDI_REGNUM, /* %edi */
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I386_EIP_REGNUM, /* %eip */
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I386_EFLAGS_REGNUM, /* %eflags */
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I386_CS_REGNUM, /* %cs */
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I386_SS_REGNUM, /* %ss */
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I386_DS_REGNUM, /* %ds */
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I386_ES_REGNUM, /* %es */
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I386_FS_REGNUM, /* %fs */
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I386_GS_REGNUM, /* %gs */
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I386_ST0_REGNUM /* %st(0) */
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};
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#define i386_num_regs 16
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/* Defined in auto-generated file i386-linux.c. */
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void init_registers_i386_linux (void);
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#define FT_CR_EAX 15
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#define FT_CR_ECX 14
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#define FT_CR_EDX 13
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#define FT_CR_EBX 12
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#define FT_CR_UESP 11
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#define FT_CR_EBP 10
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#define FT_CR_ESI 9
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#define FT_CR_EDI 8
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#define FT_CR_EIP 7
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#define FT_CR_EFL 6
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#define FT_CR_DS 5
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#define FT_CR_ES 4
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#define FT_CR_FS 3
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#define FT_CR_GS 2
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#define FT_CR_SS 1
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#define FT_CR_CS 0
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/* Mapping between the general-purpose registers in jump tracepoint
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format and GDB's register array layout. */
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static const int i386_ft_collect_regmap[] =
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{
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FT_CR_EAX * 4, FT_CR_ECX * 4, FT_CR_EDX * 4, FT_CR_EBX * 4,
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FT_CR_UESP * 4, FT_CR_EBP * 4, FT_CR_ESI * 4, FT_CR_EDI * 4,
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FT_CR_EIP * 4, FT_CR_EFL * 4, FT_CR_CS * 4, FT_CR_SS * 4,
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FT_CR_DS * 4, FT_CR_ES * 4, FT_CR_FS * 4, FT_CR_GS * 4
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};
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void
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supply_fast_tracepoint_registers (struct regcache *regcache,
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const unsigned char *buf)
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{
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int i;
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for (i = 0; i < i386_num_regs; i++)
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{
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int regval;
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if (i >= I386_CS_REGNUM && i <= I386_GS_REGNUM)
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regval = *(short *) (((char *) buf) + i386_ft_collect_regmap[i]);
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else
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regval = *(int *) (((char *) buf) + i386_ft_collect_regmap[i]);
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supply_register (regcache, i, ®val);
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}
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}
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/* This is only needed because reg-i386-linux-lib.o references it. We
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may use it proper at some point. */
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const char *gdbserver_xmltarget;
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void
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initialize_low_tracepoint (void)
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{
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init_registers_i386_linux ();
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}
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