gdb/i386-sol2-nat.c - gdb

Global variables defined

Functions defined

Source code

  1. /* Native-dependent code for Solaris x86.

  3.    Copyright (C) 2004-2015 Free Software Foundation, Inc.

  5.    This file is part of GDB.

  7.    This program is free software; you can redistribute it and/or modify
  8.    it under the terms of the GNU General Public License as published by
  9.    the Free Software Foundation; either version 3 of the License, or
  10.    (at your option) any later version.

  12.    This program is distributed in the hope that it will be useful,
  13.    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14.    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15.    GNU General Public License for more details.

  17.    You should have received a copy of the GNU General Public License
  18.    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */

  20. #include "defs.h"
  21. #include "regcache.h"

  23. #include <sys/procfs.h>
  24. #include "gregset.h"
  25. #include "target.h"
  26. #include "procfs.h"

  28. /* This file provids the (temporary) glue between the Solaris x86
  29.    target dependent code and the machine independent SVR4 /proc
  30.    support.  */

  32. /* Solaris 10 (Solaris 2.10, SunOS 5.10) and up support two process
  33.    data models, the traditional 32-bit data model (ILP32) and the
  34.    64-bit data model (LP64).  The format of /proc depends on the data
  35.    model of the observer (the controlling process, GDB in our case).
  36.    The Solaris header files conveniently define PR_MODEL_NATIVE to the
  37.    data model of the controlling process.  If its value is
  38.    PR_MODEL_LP64, we know that GDB is being compiled as a 64-bit
  39.    program.

  41.    Note that a 32-bit GDB won't be able to debug a 64-bit target
  42.    process using /proc on Solaris.  */

  44. #if defined (PR_MODEL_NATIVE) && (PR_MODEL_NATIVE == PR_MODEL_LP64)

  46. #include "amd64-nat.h"
  47. #include "amd64-tdep.h"

  49. /* Mapping between the general-purpose registers in gregset_t format
  50.    and GDB's register cache layout.  */

  52. /* From <sys/regset.h>.  */
  53. ‌static int amd64_sol2_gregset64_reg_offset[] = {
  54.   14 * 8,                        /* %rax */
  55.   11 * 8,                        /* %rbx */
  56.   13 * 8,                        /* %rcx */
  57.   12 * 8,                        /* %rdx */
  58.   9 * 8,                        /* %rsi */
  59.   8 * 8,                        /* %rdi */
  60.   10 * 8,                        /* %rbp */
  61.   20 * 8,                        /* %rsp */
  62.   7 * 8,                        /* %r8 ...  */
  63.   6 * 8,
  64.   5 * 8,
  65.   4 * 8,
  66.   3 * 8,
  67.   2 * 8,
  68.   1 * 8,
  69.   0 * 8,                        /* ... %r15 */
  70.   17 * 8,                        /* %rip */
  71.   19 * 8,                        /* %eflags */
  72.   18 * 8,                        /* %cs */
  73.   21 * 8,                        /* %ss */
  74.   25 * 8,                        /* %ds */
  75.   24 * 8,                        /* %es */
  76.   22 * 8,                        /* %fs */
  77.   23 * 8                        /* %gs */
  78. };

  80. /* 32-bit registers are provided by Solaris in 64-bit format, so just
  81.    give a subset of the list above.  */
  82. ‌static int amd64_sol2_gregset32_reg_offset[] = {
  83.   14 * 8,                        /* %eax */
  84.   13 * 8,                        /* %ecx */
  85.   12 * 8,                        /* %edx */
  86.   11 * 8,                        /* %ebx */
  87.   20 * 8,                        /* %esp */
  88.   10 * 8,                        /* %ebp */
  89.   9 * 8,                        /* %esi */
  90.   8 * 8,                        /* %edi */
  91.   17 * 8,                        /* %eip */
  92.   19 * 8,                        /* %eflags */
  93.   18 * 8,                        /* %cs */
  94.   21 * 8,                        /* %ss */
  95.   25 * 8,                        /* %ds */
  96.   24 * 8,                        /* %es */
  97.   22 * 8,                        /* %fs */
  98.   23 * 8                        /* %gs */
  99. };

  101. void
  102. ‌supply_gregset (struct regcache *regcache, const prgregset_t *gregs)
  103. {
  104.   amd64_supply_native_gregset (regcache, gregs, -1);
  105. }

  107. void
  108. ‌supply_fpregset (struct regcache *regcache, const prfpregset_t *fpregs)
  109. {
  110.   amd64_supply_fxsave (regcache, -1, fpregs);
  111. }

  113. void
  114. ‌fill_gregset (const struct regcache *regcache,
  115.               prgregset_t *gregs, int regnum)
  116. {
  117.   amd64_collect_native_gregset (regcache, gregs, regnum);
  118. }

  120. void
  121. ‌fill_fpregset (const struct regcache *regcache,
  122.                prfpregset_t *fpregs, int regnum)
  123. {
  124.   amd64_collect_fxsave (regcache, regnum, fpregs);
  125. }

  127. #else

  129. /* For 32-bit Solaris x86, we use the Unix SVR4 code in i386v4-nat.c.  */

  131. #endif

  133. /* Provide a prototype to silence -Wmissing-prototypes.  */
  134. extern void _initialize_amd64_sol2_nat (void);

  136. void
  137. ‌_initialize_amd64_sol2_nat (void)
  138. {
  139.   struct target_ops *t;

  141.   /* Fill in the generic procfs methods.  */
  142.   t = procfs_target ();

  144. #ifdef NEW_PROC_API        /* Solaris 6 and above can do HW watchpoints.  */
  145.   procfs_use_watchpoints (t);
  146. #endif

  148. #if defined (PR_MODEL_NATIVE) && (PR_MODEL_NATIVE == PR_MODEL_LP64)
  149.   amd64_native_gregset32_reg_offset = amd64_sol2_gregset32_reg_offset;
  150.   amd64_native_gregset32_num_regs =
  151.     ARRAY_SIZE (amd64_sol2_gregset32_reg_offset);
  152.   amd64_native_gregset64_reg_offset = amd64_sol2_gregset64_reg_offset;
  153.   amd64_native_gregset64_num_regs =
  154.     ARRAY_SIZE (amd64_sol2_gregset64_reg_offset);
  155. #endif

  157.   add_target (t);
  158. }