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6
7#include "ptrace.h"
8#include "ptrace-gpr.h"
9#include "tm.h"
10
11
12int shm_id;
13int *cptr, *pptr;
14
15float a = FPR_1;
16float b = FPR_2;
17float c = FPR_3;
18float d = FPR_4;
19
20__attribute__((used)) void wait_parent(void)
21{
22 cptr[2] = 1;
23 while (!cptr[1])
24 asm volatile("" : : : "memory");
25}
26
27void tm_spd_gpr(void)
28{
29 unsigned long gpr_buf[18];
30 unsigned long result, texasr;
31 float fpr_buf[32];
32
33 cptr = (int *)shmat(shm_id, NULL, 0);
34
35trans:
36 cptr[2] = 0;
37 asm __volatile__(
38 ASM_LOAD_GPR_IMMED(gpr_1)
39 ASM_LOAD_FPR_SINGLE_PRECISION(flt_1)
40
41 "1: ;"
42 "tbegin.;"
43 "beq 2f;"
44
45 ASM_LOAD_GPR_IMMED(gpr_2)
46 "tsuspend.;"
47 ASM_LOAD_GPR_IMMED(gpr_4)
48 ASM_LOAD_FPR_SINGLE_PRECISION(flt_4)
49
50 "bl wait_parent;"
51 "tresume.;"
52 "tend.;"
53 "li 0, 0;"
54 "ori %[res], 0, 0;"
55 "b 3f;"
56
57
58 "2: ;"
59 "li 0, 1;"
60 "ori %[res], 0, 0;"
61 "mfspr %[texasr], %[sprn_texasr];"
62
63 "3: ;"
64 : [res] "=r" (result), [texasr] "=r" (texasr)
65 : [gpr_1]"i"(GPR_1), [gpr_2]"i"(GPR_2), [gpr_4]"i"(GPR_4),
66 [sprn_texasr] "i" (SPRN_TEXASR), [flt_1] "b" (&a),
67 [flt_4] "b" (&d)
68 : "memory", "r0", "r5", "r6", "r7",
69 "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15",
70 "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23",
71 "r24", "r25", "r26", "r27", "r28", "r29", "r30", "r31"
72 );
73
74 if (result) {
75 if (!cptr[0])
76 goto trans;
77
78 shmdt((void *)cptr);
79 store_gpr(gpr_buf);
80 store_fpr_single_precision(fpr_buf);
81
82 if (validate_gpr(gpr_buf, GPR_3))
83 exit(1);
84
85 if (validate_fpr_float(fpr_buf, c))
86 exit(1);
87 exit(0);
88 }
89 shmdt((void *)cptr);
90 exit(1);
91}
92
93int trace_tm_spd_gpr(pid_t child)
94{
95 unsigned long gpr[18];
96 unsigned long fpr[32];
97
98 FAIL_IF(start_trace(child));
99 FAIL_IF(show_gpr(child, gpr));
100 FAIL_IF(validate_gpr(gpr, GPR_4));
101 FAIL_IF(show_fpr(child, fpr));
102 FAIL_IF(validate_fpr(fpr, FPR_4_REP));
103 FAIL_IF(show_ckpt_fpr(child, fpr));
104 FAIL_IF(validate_fpr(fpr, FPR_1_REP));
105 FAIL_IF(show_ckpt_gpr(child, gpr));
106 FAIL_IF(validate_gpr(gpr, GPR_1));
107 FAIL_IF(write_ckpt_gpr(child, GPR_3));
108 FAIL_IF(write_ckpt_fpr(child, FPR_3_REP));
109
110 pptr[0] = 1;
111 pptr[1] = 1;
112 FAIL_IF(stop_trace(child));
113 return TEST_PASS;
114}
115
116int ptrace_tm_spd_gpr(void)
117{
118 pid_t pid;
119 int ret, status;
120
121 SKIP_IF(!have_htm());
122 SKIP_IF(htm_is_synthetic());
123 shm_id = shmget(IPC_PRIVATE, sizeof(int) * 3, 0777|IPC_CREAT);
124 pid = fork();
125 if (pid < 0) {
126 perror("fork() failed");
127 return TEST_FAIL;
128 }
129
130 if (pid == 0)
131 tm_spd_gpr();
132
133 if (pid) {
134 pptr = (int *)shmat(shm_id, NULL, 0);
135 pptr[0] = 0;
136 pptr[1] = 0;
137
138 while (!pptr[2])
139 asm volatile("" : : : "memory");
140 ret = trace_tm_spd_gpr(pid);
141 if (ret) {
142 kill(pid, SIGTERM);
143 shmdt((void *)pptr);
144 shmctl(shm_id, IPC_RMID, NULL);
145 return TEST_FAIL;
146 }
147
148 shmdt((void *)pptr);
149
150 ret = wait(&status);
151 shmctl(shm_id, IPC_RMID, NULL);
152 if (ret != pid) {
153 printf("Child's exit status not captured\n");
154 return TEST_FAIL;
155 }
156
157 return (WIFEXITED(status) && WEXITSTATUS(status)) ? TEST_FAIL :
158 TEST_PASS;
159 }
160 return TEST_PASS;
161}
162
163int main(int argc, char *argv[])
164{
165 return test_harness(ptrace_tm_spd_gpr, "ptrace_tm_spd_gpr");
166}
167
