1 /* Invoke the brk system call. Sparc version.
2 Copyright (C) 2022 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 *
__brk_call(void * addr)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 }
36