1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #include <stdlib.h> 3 #include <linux/compiler.h> 4 #include "../tests.h" 5 6 /* We want to check these symbols in perf script */ 7 noinline void leaf(volatile int b); 8 noinline void parent(volatile int b); 9 10 static volatile int a; 11 12 noinline void leaf(volatile int b) 13 { 14 for (;;) 15 a += b; 16 } 17 18 noinline void parent(volatile int b) 19 { 20 leaf(b); 21 } 22 23 static int leafloop(int argc, const char **argv) 24 { 25 int c = 1; 26 27 if (argc > 0) 28 c = atoi(argv[0]); 29 30 parent(c); 31 return 0; 32 } 33 34 DEFINE_WORKLOAD(leafloop); 35