2 * Ptrace test for GPR/FPR registers in TM context
4 * Copyright (C) 2015 Anshuman Khandual, IBM Corporation.
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version
9 * 2 of the License, or (at your option) any later version.
12 #include "ptrace-gpr.h"
15 /* Tracer and Tracee Shared Data */
17 unsigned long *cptr, *pptr;
25 unsigned long gpr_buf[18];
26 unsigned long result, texasr;
29 printf("Starting the child\n");
30 cptr = (unsigned long *)shmat(shm_id, NULL, 0);
35 ASM_LOAD_GPR_IMMED(gpr_1)
36 ASM_LOAD_FPR_SINGLE_PRECISION(flt_1)
40 ASM_LOAD_GPR_IMMED(gpr_2)
41 ASM_LOAD_FPR_SINGLE_PRECISION(flt_2)
53 /* Transaction abort handler */
57 "mfspr %[texasr], %[sprn_texasr];"
60 : [res] "=r" (result), [texasr] "=r" (texasr)
61 : [gpr_1]"i"(GPR_1), [gpr_2]"i"(GPR_2),
62 [sprn_texasr] "i" (SPRN_TEXASR), [flt_1] "r" (&a),
63 [flt_2] "r" (&b), [cptr1] "r" (&cptr[1])
64 : "memory", "r7", "r8", "r9", "r10",
65 "r11", "r12", "r13", "r14", "r15", "r16",
66 "r17", "r18", "r19", "r20", "r21", "r22",
67 "r23", "r24", "r25", "r26", "r27", "r28",
77 store_fpr_single_precision(fpr_buf);
79 if (validate_gpr(gpr_buf, GPR_3))
82 if (validate_fpr_float(fpr_buf, c))
91 int trace_tm_gpr(pid_t child)
93 unsigned long gpr[18];
94 unsigned long fpr[32];
96 FAIL_IF(start_trace(child));
97 FAIL_IF(show_gpr(child, gpr));
98 FAIL_IF(validate_gpr(gpr, GPR_2));
99 FAIL_IF(show_fpr(child, fpr));
100 FAIL_IF(validate_fpr(fpr, FPR_2_REP));
101 FAIL_IF(show_ckpt_fpr(child, fpr));
102 FAIL_IF(validate_fpr(fpr, FPR_1_REP));
103 FAIL_IF(show_ckpt_gpr(child, gpr));
104 FAIL_IF(validate_gpr(gpr, GPR_1));
105 FAIL_IF(write_ckpt_gpr(child, GPR_3));
106 FAIL_IF(write_ckpt_fpr(child, FPR_3_REP));
109 FAIL_IF(stop_trace(child));
114 int ptrace_tm_gpr(void)
119 SKIP_IF(!have_htm());
120 shm_id = shmget(IPC_PRIVATE, sizeof(int) * 2, 0777|IPC_CREAT);
123 perror("fork() failed");
130 pptr = (unsigned long *)shmat(shm_id, NULL, 0);
133 asm volatile("" : : : "memory");
134 ret = trace_tm_gpr(pid);
143 shmctl(shm_id, IPC_RMID, NULL);
145 printf("Child's exit status not captured\n");
149 return (WIFEXITED(status) && WEXITSTATUS(status)) ? TEST_FAIL :
155 int main(int argc, char *argv[])
157 return test_harness(ptrace_tm_gpr, "ptrace_tm_gpr");