This commit was generated by cvs2svn to compensate for changes in r157571,
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jmg
commit
0bf49b8fa9
176
gnu/usr.bin/gdb/gdbserver/fbsd-i386-low.c
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176
gnu/usr.bin/gdb/gdbserver/fbsd-i386-low.c
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/* GNU/Linux/i386 specific low level interface, for the remote server for GDB.
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Copyright 1995, 1996, 1998, 1999, 2000, 2001, 2002
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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 2 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, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include "server.h"
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#include "linux-low.h"
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#include "i387-fp.h"
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#ifdef HAVE_SYS_REG_H
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#include <sys/reg.h>
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#endif
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/* This module only supports access to the general purpose registers. */
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#define i386_num_regs 16
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/* This stuff comes from i386-linux-nat.c. */
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/* Mapping between the general-purpose registers in `struct user'
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format and GDB's register array layout. */
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static int i386_regmap[] =
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{
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EAX * 4, ECX * 4, EDX * 4, EBX * 4,
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UESP * 4, EBP * 4, ESI * 4, EDI * 4,
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EIP * 4, EFL * 4, CS * 4, SS * 4,
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DS * 4, ES * 4, FS * 4, GS * 4
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};
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static int
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i386_cannot_store_register (int regno)
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{
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return (regno >= i386_num_regs);
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}
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static int
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i386_cannot_fetch_register (int regno)
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{
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return (regno >= i386_num_regs);
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}
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#ifdef HAVE_LINUX_REGSETS
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#include <sys/procfs.h>
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#include <sys/ptrace.h>
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static void
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i386_fill_gregset (void *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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collect_register (i, ((char *) buf) + i386_regmap[i]);
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collect_register_by_name ("orig_eax", ((char *) buf) + ORIG_EAX * 4);
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}
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static void
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i386_store_gregset (const void *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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supply_register (i, ((char *) buf) + i386_regmap[i]);
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supply_register_by_name ("orig_eax", ((char *) buf) + ORIG_EAX * 4);
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}
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static void
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i386_fill_fpregset (void *buf)
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{
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i387_cache_to_fsave (buf);
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}
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static void
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i386_store_fpregset (const void *buf)
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{
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i387_fsave_to_cache (buf);
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}
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static void
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i386_fill_fpxregset (void *buf)
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{
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i387_cache_to_fxsave (buf);
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}
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static void
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i386_store_fpxregset (const void *buf)
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{
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i387_fxsave_to_cache (buf);
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}
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struct regset_info target_regsets[] = {
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{ PTRACE_GETREGS, PTRACE_SETREGS, sizeof (elf_gregset_t),
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GENERAL_REGS,
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i386_fill_gregset, i386_store_gregset },
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#ifdef HAVE_PTRACE_GETFPXREGS
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{ PTRACE_GETFPXREGS, PTRACE_SETFPXREGS, sizeof (elf_fpxregset_t),
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EXTENDED_REGS,
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i386_fill_fpxregset, i386_store_fpxregset },
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#endif
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{ PTRACE_GETFPREGS, PTRACE_SETFPREGS, sizeof (elf_fpregset_t),
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FP_REGS,
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i386_fill_fpregset, i386_store_fpregset },
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{ 0, 0, -1, -1, NULL, NULL }
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};
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#endif /* HAVE_LINUX_REGSETS */
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static const char i386_breakpoint[] = { 0xCC };
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#define i386_breakpoint_len 1
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extern int debug_threads;
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static CORE_ADDR
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i386_get_pc ()
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{
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unsigned long pc;
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collect_register_by_name ("eip", &pc);
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if (debug_threads)
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fprintf (stderr, "stop pc (before any decrement) is %08lx\n", pc);
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return pc;
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}
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static void
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i386_set_pc (CORE_ADDR newpc)
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{
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if (debug_threads)
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fprintf (stderr, "set pc to %08lx\n", (long) newpc);
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supply_register_by_name ("eip", &newpc);
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}
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static int
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i386_breakpoint_at (CORE_ADDR pc)
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{
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unsigned char c;
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read_inferior_memory (pc, &c, 1);
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if (c == 0xCC)
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return 1;
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return 0;
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}
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struct linux_target_ops the_low_target = {
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i386_num_regs,
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i386_regmap,
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i386_cannot_fetch_register,
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i386_cannot_store_register,
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i386_get_pc,
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i386_set_pc,
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i386_breakpoint,
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i386_breakpoint_len,
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NULL,
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1,
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i386_breakpoint_at,
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};
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1458
gnu/usr.bin/gdb/gdbserver/fbsd-low.c
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1458
gnu/usr.bin/gdb/gdbserver/fbsd-low.c
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File diff suppressed because it is too large
Load Diff
120
gnu/usr.bin/gdb/gdbserver/fbsd-low.h
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120
gnu/usr.bin/gdb/gdbserver/fbsd-low.h
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@ -0,0 +1,120 @@
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/* Internal interfaces for the GNU/Linux specific target code for gdbserver.
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Copyright 2002, 2004 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 2 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, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#ifdef HAVE_LINUX_REGSETS
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typedef void (*regset_fill_func) (void *);
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typedef void (*regset_store_func) (const void *);
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enum regset_type {
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GENERAL_REGS,
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FP_REGS,
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EXTENDED_REGS,
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};
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struct regset_info
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{
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int get_request, set_request;
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int size;
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enum regset_type type;
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regset_fill_func fill_function;
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regset_store_func store_function;
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};
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extern struct regset_info target_regsets[];
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#endif
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struct linux_target_ops
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{
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int num_regs;
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int *regmap;
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int (*cannot_fetch_register) (int);
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/* Returns 0 if we can store the register, 1 if we can not
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store the register, and 2 if failure to store the register
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is acceptable. */
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int (*cannot_store_register) (int);
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CORE_ADDR (*get_pc) (void);
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void (*set_pc) (CORE_ADDR newpc);
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const char *breakpoint;
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int breakpoint_len;
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CORE_ADDR (*breakpoint_reinsert_addr) (void);
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int decr_pc_after_break;
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int (*breakpoint_at) (CORE_ADDR pc);
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};
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extern struct linux_target_ops the_low_target;
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#define get_process(inf) ((struct process_info *)(inf))
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#define get_thread_process(thr) (get_process (inferior_target_data (thr)))
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#define get_process_thread(proc) ((struct thread_info *) \
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find_inferior_id (&all_threads, \
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get_process (proc)->tid))
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struct process_info
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{
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struct inferior_list_entry head;
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int thread_known;
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int lwpid;
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int tid;
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/* If this flag is set, the next SIGSTOP will be ignored (the process will
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be immediately resumed). */
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int stop_expected;
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/* If this flag is set, the process is known to be stopped right now (stop
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event already received in a wait()). */
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int stopped;
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/* If this flag is set, we have sent a SIGSTOP to this process and are
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waiting for it to stop. */
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int sigstop_sent;
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/* If this flag is set, STATUS_PENDING is a waitstatus that has not yet
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been reported. */
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int status_pending_p;
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int status_pending;
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/* If this flag is set, the pending status is a (GDB-placed) breakpoint. */
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int pending_is_breakpoint;
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CORE_ADDR pending_stop_pc;
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/* If this is non-zero, it is a breakpoint to be reinserted at our next
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stop (SIGTRAP stops only). */
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CORE_ADDR bp_reinsert;
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/* If this flag is set, the last continue operation on this process
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was a single-step. */
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int stepping;
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/* If this is non-zero, it points to a chain of signals which need to
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be delivered to this process. */
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struct pending_signals *pending_signals;
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/* A link used when resuming. It is initialized from the resume request,
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and then processed and cleared in linux_resume_one_process. */
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struct thread_resume *resume;
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};
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extern struct inferior_list all_processes;
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void linux_attach_lwp (int pid, int tid);
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int thread_db_init (void);
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