gdb/sparc-sol2-nat.c - gdb

Functions defined

Macros defined

Source code

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

  3.    Copyright (C) 2003-2015 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"

  26. #include "sparc-tdep.h"
  27. #include "target.h"
  28. #include "procfs.h"

  30. /* This file provids the (temporary) glue between the Solaris SPARC
  31.    target dependent code and the machine independent SVR4 /proc
  32.    support.  */

  34. /* Solaris 7 (Solaris 2.7, SunOS 5.7) and up support two process data
  35.    models, the traditional 32-bit data model (ILP32) and the 64-bit
  36.    data model (LP64).  The format of /proc depends on the data model
  37.    of the observer (the controlling process, GDB in our case).  The
  38.    Solaris header files conveniently define PR_MODEL_NATIVE to the
  39.    data model of the controlling process.  If its value is
  40.    PR_MODEL_LP64, we know that GDB is being compiled as a 64-bit
  41.    program.

  43.    GNU/Linux uses the same formats as Solaris for its core files (but
  44.    not for ptrace(2)).  The GNU/Linux headers don't define
  45.    PR_MODEL_NATIVE though.  Therefore we rely on the __arch64__ define
  46.    provided by GCC to determine the appropriate data model.

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

  51. #if (defined (__arch64__) || \
  52.      (defined (PR_MODEL_NATIVE) && (PR_MODEL_NATIVE == PR_MODEL_LP64)))

  54. #include "sparc64-tdep.h"

  56. ‌#define sparc_supply_gregset sparc64_supply_gregset
  57. ‌#define sparc_supply_fpregset sparc64_supply_fpregset
  58. ‌#define sparc_collect_gregset sparc64_collect_gregset
  59. ‌#define sparc_collect_fpregset sparc64_collect_fpregset

  61. ‌#define sparc_sol2_gregmap sparc64_sol2_gregmap
  62. ‌#define sparc_sol2_fpregmap sparc64_sol2_fpregmap

  64. #else

  66. ‌#define sparc_supply_gregset sparc32_supply_gregset
  67. ‌#define sparc_supply_fpregset sparc32_supply_fpregset
  68. ‌#define sparc_collect_gregset sparc32_collect_gregset
  69. ‌#define sparc_collect_fpregset sparc32_collect_fpregset

  71. ‌#define sparc_sol2_gregmap sparc32_sol2_gregmap
  72. ‌#define sparc_sol2_fpregmap sparc32_sol2_fpregmap

  74. #endif

  76. void
  77. ‌supply_gregset (struct regcache *regcache, const prgregset_t *gregs)
  78. {
  79.   sparc_supply_gregset (&sparc_sol2_gregmap, regcache, -1, gregs);
  80. }

  82. void
  83. ‌supply_fpregset (struct regcache *regcache, const prfpregset_t *fpregs)
  84. {
  85.   sparc_supply_fpregset (&sparc_sol2_fpregmap, regcache, -1, fpregs);
  86. }

  88. void
  89. ‌fill_gregset (const struct regcache *regcache, prgregset_t *gregs, int regnum)
  90. {
  91.   sparc_collect_gregset (&sparc_sol2_gregmap, regcache, regnum, gregs);
  92. }

  94. void
  95. ‌fill_fpregset (const struct regcache *regcache,
  96.                prfpregset_t *fpregs, int regnum)
  97. {
  98.   sparc_collect_fpregset (&sparc_sol2_fpregmap, regcache, regnum, fpregs);
  99. }

  101. /* Provide a prototype to silence -Wmissing-prototypes.  */
  102. extern initialize_file_ftype _initialize_sparc_sol2_nat;

  104. void
  105. ‌_initialize_sparc_sol2_nat (void)
  106. {
  107.   struct target_ops *t;

  109.   t = procfs_target ();
  110. #ifdef NEW_PROC_API        /* Solaris 6 and above can do HW watchpoints.  */
  111.   procfs_use_watchpoints (t);
  112. #endif
  113.   add_target (t);
  114. }