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jeremybenn |
/* Native-dependent code for Solaris x86.
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Copyright (C) 2004, 2007, 2008 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 "defs.h"
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#include "regcache.h"
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#include <sys/procfs.h>
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#include "gregset.h"
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/* This file provids the (temporary) glue between the Solaris x86
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target dependent code and the machine independent SVR4 /proc
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support. */
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/* Solaris 10 (Solaris 2.10, SunOS 5.10) and up support two process
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data models, the traditional 32-bit data model (ILP32) and the
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64-bit data model (LP64). The format of /proc depends on the data
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model of the observer (the controlling process, GDB in our case).
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The Solaris header files conveniently define PR_MODEL_NATIVE to the
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data model of the controlling process. If its value is
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PR_MODEL_LP64, we know that GDB is being compiled as a 64-bit
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program.
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Note that a 32-bit GDB won't be able to debug a 64-bit target
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process using /proc on Solaris. */
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#if defined (PR_MODEL_NATIVE) && (PR_MODEL_NATIVE == PR_MODEL_LP64)
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#include "amd64-nat.h"
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#include "amd64-tdep.h"
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/* Mapping between the general-purpose registers in gregset_t format
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and GDB's register cache layout. */
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/* From <sys/regset.h>. */
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static int amd64_sol2_gregset64_reg_offset[] = {
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14 * 8, /* %rax */
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11 * 8, /* %rbx */
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13 * 8, /* %rcx */
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12 * 8, /* %rdx */
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9 * 8, /* %rsi */
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8 * 8, /* %rdi */
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10 * 8, /* %rbp */
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20 * 8, /* %rsp */
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7 * 8, /* %r8 ... */
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6 * 8,
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5 * 8,
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4 * 8,
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3 * 8,
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2 * 8,
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1 * 8,
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17 * 8, /* %rip */
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16 * 8, /* %eflags */
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18 * 8, /* %cs */
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21 * 8, /* %ss */
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25 * 8, /* %ds */
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24 * 8, /* %es */
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22 * 8, /* %fs */
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23 * 8 /* %gs */
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};
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/* 32-bit registers are provided by Solaris in 64-bit format, so just
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give a subset of the list above. */
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static int amd64_sol2_gregset32_reg_offset[] = {
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14 * 8, /* %eax */
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13 * 8, /* %ecx */
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12 * 8, /* %edx */
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11 * 8, /* %ebx */
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20 * 8, /* %esp */
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10 * 8, /* %ebp */
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9 * 8, /* %esi */
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8 * 8, /* %edi */
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17 * 8, /* %eip */
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16 * 8, /* %eflags */
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18 * 8, /* %cs */
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21 * 8, /* %ss */
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25 * 8, /* %ds */
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24 * 8, /* %es */
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22 * 8, /* %fs */
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23 * 8 /* %gs */
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};
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void
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supply_gregset (struct regcache *regcache, const prgregset_t *gregs)
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{
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amd64_supply_native_gregset (regcache, gregs, -1);
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}
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void
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supply_fpregset (struct regcache *regcache, const prfpregset_t *fpregs)
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{
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amd64_supply_fxsave (regcache, -1, fpregs);
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}
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void
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fill_gregset (const struct regcache *regcache,
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prgregset_t *gregs, int regnum)
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{
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amd64_collect_native_gregset (regcache, gregs, regnum);
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}
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void
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fill_fpregset (const struct regcache *regcache,
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prfpregset_t *fpregs, int regnum)
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{
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amd64_collect_fxsave (regcache, regnum, fpregs);
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}
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#else
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/* For 32-bit Solaris x86, we use the Unix SVR4 code in i386v4-nat.c. */
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#endif
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/* Provide a prototype to silence -Wmissing-prototypes. */
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extern void _initialize_amd64_sol2_nat (void);
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void
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_initialize_amd64_sol2_nat (void)
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{
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#if defined (PR_MODEL_NATIVE) && (PR_MODEL_NATIVE == PR_MODEL_LP64)
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amd64_native_gregset32_reg_offset = amd64_sol2_gregset32_reg_offset;
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amd64_native_gregset32_num_regs =
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ARRAY_SIZE (amd64_sol2_gregset32_reg_offset);
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amd64_native_gregset64_reg_offset = amd64_sol2_gregset64_reg_offset;
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amd64_native_gregset64_num_regs =
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ARRAY_SIZE (amd64_sol2_gregset64_reg_offset);
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#endif
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}
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