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/* Native-dependent code for Solaris x86.
Copyright (C) 2004-2017 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 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
#include "regcache.h"
#include <sys/procfs.h>
#include "gregset.h"
#include "target.h"
#include "procfs.h"
/* This file provids the (temporary) glue between the Solaris x86
target dependent code and the machine independent SVR4 /proc
support. */
/* Solaris 10 (Solaris 2.10, SunOS 5.10) and up support two process
data models, the traditional 32-bit data model (ILP32) and the
64-bit data model (LP64). The format of /proc depends on the data
model of the observer (the controlling process, GDB in our case).
The Solaris header files conveniently define PR_MODEL_NATIVE to the
data model of the controlling process. If its value is
PR_MODEL_LP64, we know that GDB is being compiled as a 64-bit
program.
Note that a 32-bit GDB won't be able to debug a 64-bit target
process using /proc on Solaris. */
#if defined (PR_MODEL_NATIVE) && (PR_MODEL_NATIVE == PR_MODEL_LP64)
#include "amd64-nat.h"
#include "amd64-tdep.h"
/* Mapping between the general-purpose registers in gregset_t format
and GDB's register cache layout. */
/* From <sys/regset.h>. */
static int amd64_sol2_gregset64_reg_offset[] = {
14 * 8, /* %rax */
11 * 8, /* %rbx */
13 * 8, /* %rcx */
12 * 8, /* %rdx */
9 * 8, /* %rsi */
8 * 8, /* %rdi */
10 * 8, /* %rbp */
20 * 8, /* %rsp */
7 * 8, /* %r8 ... */
6 * 8,
5 * 8,
4 * 8,
3 * 8,
2 * 8,
1 * 8,
0 * 8, /* ... %r15 */
17 * 8, /* %rip */
19 * 8, /* %eflags */
18 * 8, /* %cs */
21 * 8, /* %ss */
25 * 8, /* %ds */
24 * 8, /* %es */
22 * 8, /* %fs */
23 * 8 /* %gs */
};
/* 32-bit registers are provided by Solaris in 64-bit format, so just
give a subset of the list above. */
static int amd64_sol2_gregset32_reg_offset[] = {
14 * 8, /* %eax */
13 * 8, /* %ecx */
12 * 8, /* %edx */
11 * 8, /* %ebx */
20 * 8, /* %esp */
10 * 8, /* %ebp */
9 * 8, /* %esi */
8 * 8, /* %edi */
17 * 8, /* %eip */
19 * 8, /* %eflags */
18 * 8, /* %cs */
21 * 8, /* %ss */
25 * 8, /* %ds */
24 * 8, /* %es */
22 * 8, /* %fs */
23 * 8 /* %gs */
};
void
supply_gregset (struct regcache *regcache, const prgregset_t *gregs)
{
amd64_supply_native_gregset (regcache, gregs, -1);
}
void
supply_fpregset (struct regcache *regcache, const prfpregset_t *fpregs)
{
amd64_supply_fxsave (regcache, -1, fpregs);
}
void
fill_gregset (const struct regcache *regcache,
prgregset_t *gregs, int regnum)
{
amd64_collect_native_gregset (regcache, gregs, regnum);
}
void
fill_fpregset (const struct regcache *regcache,
prfpregset_t *fpregs, int regnum)
{
amd64_collect_fxsave (regcache, regnum, fpregs);
}
#else
/* For 32-bit Solaris x86, we use the Unix SVR4 code in i386v4-nat.c. */
#endif
/* Provide a prototype to silence -Wmissing-prototypes. */
extern void _initialize_amd64_sol2_nat (void);
void
_initialize_amd64_sol2_nat (void)
{
struct target_ops *t;
/* Fill in the generic procfs methods. */
t = procfs_target ();
#ifdef NEW_PROC_API /* Solaris 6 and above can do HW watchpoints. */
procfs_use_watchpoints (t);
#endif
#if defined (PR_MODEL_NATIVE) && (PR_MODEL_NATIVE == PR_MODEL_LP64)
amd64_native_gregset32_reg_offset = amd64_sol2_gregset32_reg_offset;
amd64_native_gregset32_num_regs =
ARRAY_SIZE (amd64_sol2_gregset32_reg_offset);
amd64_native_gregset64_reg_offset = amd64_sol2_gregset64_reg_offset;
amd64_native_gregset64_num_regs =
ARRAY_SIZE (amd64_sol2_gregset64_reg_offset);
#endif
add_target (t);
}
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