1  /* Invoke the brk system call.  Sparc version.
       2     Copyright (C) 2022-2023 Free Software Foundation, Inc.
       3     This file is part of the GNU C Library.
       4  
       5     The GNU C Library is free software; you can redistribute it and/or
       6     modify it under the terms of the GNU Lesser General Public
       7     License as published by the Free Software Foundation; either
       8     version 2.1 of the License, or (at your option) any later version.
       9  
      10     The GNU C Library 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 GNU
      13     Lesser General Public License for more details.
      14  
      15     You should have received a copy of the GNU Lesser General Public
      16     License along with the GNU C Library.  If not, see
      17     <https://www.gnu.org/licenses/>.  */
      18  
      19  #ifdef __arch64__
      20  # define SYSCALL_NUM "0x6d"
      21  #else
      22  # define SYSCALL_NUM "0x10"
      23  #endif
      24  
      25  static inline void *
      26  __brk_call (void *addr)
      27  {
      28    register long int g1 asm ("g1") = __NR_brk;
      29    register long int o0 asm ("o0") = (long int) addr;
      30    asm volatile ("ta " SYSCALL_NUM
      31  		: "=r"(o0)
      32  		: "r"(g1), "0"(o0)
      33  		: "cc");
      34    return (void *) o0;
      35  }