1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0-or-later 2*4882a593Smuzhiyun /* 3*4882a593Smuzhiyun * Copyright 2016, Cyril Bur, IBM Corp. 4*4882a593Smuzhiyun * 5*4882a593Smuzhiyun * Syscalls can be performed provided the transactions are suspended. 6*4882a593Smuzhiyun * The exec() class of syscall is unique as a new process is loaded. 7*4882a593Smuzhiyun * 8*4882a593Smuzhiyun * It makes little sense for after an exec() call for the previously 9*4882a593Smuzhiyun * suspended transaction to still exist. 10*4882a593Smuzhiyun */ 11*4882a593Smuzhiyun 12*4882a593Smuzhiyun #define _GNU_SOURCE 13*4882a593Smuzhiyun #include <errno.h> 14*4882a593Smuzhiyun #include <inttypes.h> 15*4882a593Smuzhiyun #include <libgen.h> 16*4882a593Smuzhiyun #include <pthread.h> 17*4882a593Smuzhiyun #include <stdio.h> 18*4882a593Smuzhiyun #include <stdlib.h> 19*4882a593Smuzhiyun #include <string.h> 20*4882a593Smuzhiyun #include <unistd.h> 21*4882a593Smuzhiyun 22*4882a593Smuzhiyun #include "utils.h" 23*4882a593Smuzhiyun #include "tm.h" 24*4882a593Smuzhiyun 25*4882a593Smuzhiyun static char *path; 26*4882a593Smuzhiyun test_exec(void)27*4882a593Smuzhiyunstatic int test_exec(void) 28*4882a593Smuzhiyun { 29*4882a593Smuzhiyun SKIP_IF(!have_htm()); 30*4882a593Smuzhiyun 31*4882a593Smuzhiyun asm __volatile__( 32*4882a593Smuzhiyun "tbegin.;" 33*4882a593Smuzhiyun "blt 1f; " 34*4882a593Smuzhiyun "tsuspend.;" 35*4882a593Smuzhiyun "1: ;" 36*4882a593Smuzhiyun : : : "memory"); 37*4882a593Smuzhiyun 38*4882a593Smuzhiyun execl(path, "tm-exec", "--child", NULL); 39*4882a593Smuzhiyun 40*4882a593Smuzhiyun /* Shouldn't get here */ 41*4882a593Smuzhiyun perror("execl() failed"); 42*4882a593Smuzhiyun return 1; 43*4882a593Smuzhiyun } 44*4882a593Smuzhiyun after_exec(void)45*4882a593Smuzhiyunstatic int after_exec(void) 46*4882a593Smuzhiyun { 47*4882a593Smuzhiyun asm __volatile__( 48*4882a593Smuzhiyun "tbegin.;" 49*4882a593Smuzhiyun "blt 1f;" 50*4882a593Smuzhiyun "tsuspend.;" 51*4882a593Smuzhiyun "1: ;" 52*4882a593Smuzhiyun : : : "memory"); 53*4882a593Smuzhiyun 54*4882a593Smuzhiyun FAIL_IF(failure_is_nesting()); 55*4882a593Smuzhiyun return 0; 56*4882a593Smuzhiyun } 57*4882a593Smuzhiyun main(int argc,char * argv[])58*4882a593Smuzhiyunint main(int argc, char *argv[]) 59*4882a593Smuzhiyun { 60*4882a593Smuzhiyun path = argv[0]; 61*4882a593Smuzhiyun 62*4882a593Smuzhiyun if (argc > 1 && strcmp(argv[1], "--child") == 0) 63*4882a593Smuzhiyun return after_exec(); 64*4882a593Smuzhiyun 65*4882a593Smuzhiyun return test_harness(test_exec, "tm_exec"); 66*4882a593Smuzhiyun } 67