gdb/testsuite/gdb.arch/riscv64-unwind-prologue-with-c_li-foo.s

   1 /* Copyright 2023-2024 Free Software Foundation, Inc.
   2
   3    This program is free software; you can redistribute it and/or modify
   4    it under the terms of the GNU General Public License as published by
   5    the Free Software Foundation; either version 3 of the License, or
   6    (at your option) any later version.
   7
   8    This program is distributed in the hope that it will be useful,
   9    but WITHOUT ANY WARRANTY; without even the implied warranty of
  10    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11    GNU General Public License for more details.
  12
  13    You should have received a copy of the GNU General Public License
  14    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  15
  16
  17 /* Simple asm function that makes use of c.li and c.lui in the
  18    function prologue before the return address and frame pointers are
  19    written the stack.  This ensures that GDB's prologue unwinder can
  20    understand these instructions.  */
  21
  22         .option pic
  23         .text
  24
  25         .globl  foo
  26         .type   foo, @function
  27 foo:
  28         addi    sp,sp,-32
  29         sd      s1,8(sp)
  30
  31         c.li    s1,-4
  32         c.lui   s1,4
  33
  34         sd      fp,24(sp)
  35         sd      ra,16(sp)
  36         addi    fp,sp,32
  37
  38         call    bar@plt
  39
  40         ld      s1,8(sp)
  41         ld      ra,16(sp)
  42         ld      fp,24(sp)
  43         addi    sp,sp,32
  44         jr      ra
  45
  46         .size   foo, .-foo
  47         .section        .note.GNU-stack,"",@progbits