gdb/testsuite/gdb.python/py-section-script.c

   1 /* This testcase is part of GDB, the GNU debugger.
   2
   3    Copyright 2010-2020 Free Software Foundation, Inc.
   4
   5    This program is free software; you can redistribute it and/or modify
   6    it under the terms of the GNU General Public License as published by
   7    the Free Software Foundation; either version 3 of the License, or
   8    (at your option) any later version.
   9
  10    This program is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13    GNU General Public License for more details.
  14
  15    You should have received a copy of the GNU General Public License
  16    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  17
  18 #include "symcat.h"
  19 #include "gdb/section-scripts.h"
  20
  21 /* Put the path to the pretty-printer script in .debug_gdb_scripts so
  22    gdb will automagically loaded it.
  23    Normally "MS" would appear here, as in
  24    .pushsection ".debug_gdb_scripts", "MS",%progbits,1
  25    but we remove it to test files appearing twice in the section.  */
  26
  27 #define DEFINE_GDB_SCRIPT_FILE(script_name) \
  28   asm("\
  29 .pushsection \".debug_gdb_scripts\", \"S\",%progbits\n\
  30 .byte " XSTRING (SECTION_SCRIPT_ID_PYTHON_FILE) "\n\
  31 .asciz \"" script_name "\"\n\
  32 .popsection\n\
  33 ");
  34
  35 #ifndef SCRIPT_FILE
  36 #error "SCRIPT_FILE not defined"
  37 #endif
  38
  39 /* Specify it twice to verify the file is only loaded once.  */
  40 DEFINE_GDB_SCRIPT_FILE (SCRIPT_FILE)
  41 DEFINE_GDB_SCRIPT_FILE (SCRIPT_FILE)
  42
  43 /* Inlined scripts are harder to create in the same way as
  44    DEFINE_GDB_SCRIPT_FILE.  Keep things simple and just define it here.
  45    Normally "MS" would appear here, as in
  46    .pushsection ".debug_gdb_scripts", "MS",%progbits,1
  47    but we remove it to test scripts appearing twice in the section.  */
  48
  49 #define DEFINE_GDB_SCRIPT_TEXT \
  50 asm( \
  51 ".pushsection \".debug_gdb_scripts\", \"S\",%progbits\n" \
  52 ".byte " XSTRING (SECTION_SCRIPT_ID_PYTHON_TEXT) "\n" \
  53 ".ascii \"gdb.inlined-script\\n\"\n" \
  54 ".ascii \"class test_cmd (gdb.Command):\\n\"\n" \
  55 ".ascii \"  def __init__ (self):\\n\"\n" \
  56 ".ascii \"    super (test_cmd, self).__init__ (\\\"test-cmd\\\", gdb.COMMAND_OBSCURE)\\n\"\n" \
  57 ".ascii \"  def invoke (self, arg, from_tty):\\n\"\n" \
  58 ".ascii \"    print (\\\"test-cmd output, arg = %s\\\" % arg)\\n\"\n" \
  59 ".ascii \"test_cmd ()\\n\"\n" \
  60 ".byte 0\n" \
  61 ".popsection\n" \
  62 );
  63
  64 /* Specify it twice to verify the script is only executed once.  */
  65 DEFINE_GDB_SCRIPT_TEXT
  66 DEFINE_GDB_SCRIPT_TEXT
  67
  68 struct ss
  69 {
  70   int a;
  71   int b;
  72 };
  73
  74 void
  75 init_ss (struct ss *s, int a, int b)
  76 {
  77   s->a = a;
  78   s->b = b;
  79 }
  80
  81 int
  82 main ()
  83 {
  84   struct ss ss;
  85
  86   init_ss (&ss, 1, 2);
  87
  88   return 0;      /* break to inspect struct and union */
  89 }