gdb/testsuite/gdb.arch/aarch64-prologue.c

   1 /* This testcase is part of GDB, the GNU debugger.
   2
   3    Copyright 2019 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 <stdio.h>
  19
  20 extern void excessiveprologue ();
  21
  22 void
  23 innerfunc ()
  24 {
  25   printf ("inner\n");
  26 }
  27
  28 /* excessiveprologue saves to the stack in multiple ways.  */
  29
  30 asm ("\t.section .gnu.sgstubs,\"ax\",%progbits\n"
  31      "\t.global excessiveprologue\n"
  32      "\t.type excessiveprologue, %function\n"
  33      "excessiveprologue:\n"
  34      "\tstp     x29, x30, [sp, #-208]!\n"
  35      "\tmov     x29, sp\n"
  36      "\tstp     w0,w1,[sp,16]\n"
  37      "\tstp     x2,x3,[sp,24]\n"
  38      "\tstr     w4,[sp,40]\n"
  39      "\tstr     x5,[sp,48]\n"
  40      "\tstur    w6,[sp,52]\n"
  41      "\tstur    x7,[sp,56]\n"
  42      "\tstp     s0,s1,[sp,64]\n"
  43      "\tstp     d2,d3,[sp,72]\n"
  44      "\tstp     q4,q5,[sp,96]\n"
  45      "\tstr     b6,[sp,128]\n"
  46      "\tstr     h7,[sp,132]\n"
  47      "\tstr     s8,[sp,136]\n"
  48      "\tstr     d9,[sp,140]\n"
  49      "\tstr     q10,[sp,148]\n"
  50      "\tstur    b11,[sp,164]\n"
  51      "\tstur    h12,[sp,160]\n"
  52      "\tstur    s13,[sp,172]\n"
  53      "\tstur    d14,[sp,176]\n"
  54      "\tstur    q15,[sp,184]\n"
  55      "\tbl innerfunc\n"
  56      "\tldp     w0,w1,[sp,16]\n"
  57      "\tldp     x2,x3,[sp,24]\n"
  58      "\tldr     w4,[sp,40]\n"
  59      "\tldr     x5,[sp,48]\n"
  60      "\tldur    w6,[sp,52]\n"
  61      "\tldur    x7,[sp,56]\n"
  62      "\tldp     s0,s1,[sp,64]\n"
  63      "\tldp     d2,d3,[sp,72]\n"
  64      "\tldp     q4,q5,[sp,96]\n"
  65      "\tldr     b6,[sp,128]\n"
  66      "\tldr     h7,[sp,132]\n"
  67      "\tldr     s8,[sp,136]\n"
  68      "\tldr     d9,[sp,140]\n"
  69      "\tldr     q10,[sp,148]\n"
  70      "\tldur    b11,[sp,164]\n"
  71      "\tldur    h12,[sp,160]\n"
  72      "\tldur    s13,[sp,172]\n"
  73      "\tldur    d14,[sp,176]\n"
  74      "\tldur    q15,[sp,184]\n"
  75      "\tldp     x29, x30, [sp], #208\n"
  76      "ret\n");
  77
  78 int
  79 main (void)
  80 {
  81   excessiveprologue ();
  82   return 0;
  83 }