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20#include <stdlib.h>
21#include <stdio.h>
22#include <signal.h>
23#include <unistd.h>
24
25#include <altivec.h>
26
27#include "utils.h"
28#include "tm.h"
29
30#define MAX_ATTEMPT 500000
31
32#define NV_GPR_REGS 18
33#define R14 14
34
35long tm_signal_self_context_load(pid_t pid, long *gprs, double *fps, vector int *vms, vector int *vss);
36
37static sig_atomic_t fail, broken;
38
39
40static long gprs[] = {
41
42
43 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18,
44
45
46 -1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12,-13,-14,-15,-16,-17,-18
47};
48
49static void signal_usr1(int signum, siginfo_t *info, void *uc)
50{
51 int i;
52 ucontext_t *ucp = uc;
53 ucontext_t *tm_ucp = ucp->uc_link;
54
55
56 for (i = 0; i < NV_GPR_REGS; i++) {
57 fail = (ucp->uc_mcontext.gp_regs[R14 + i] != gprs[i]);
58 if (fail) {
59 broken = 1;
60 printf("GPR%d (1st context) == %lu instead of %lu (expected)\n",
61 R14 + i, ucp->uc_mcontext.gp_regs[R14 + i], gprs[i]);
62 }
63 }
64
65
66 for (i = 0; i < NV_GPR_REGS; i++) {
67 fail = (tm_ucp->uc_mcontext.gp_regs[R14 + i] != gprs[NV_GPR_REGS + i]);
68 if (fail) {
69 broken = 1;
70 printf("GPR%d (2nd context) == %lu instead of %lu (expected)\n",
71 R14 + i, tm_ucp->uc_mcontext.gp_regs[R14 + i], gprs[NV_GPR_REGS + i]);
72 }
73 }
74}
75
76static int tm_signal_context_chk_gpr()
77{
78 struct sigaction act;
79 int i;
80 long rc;
81 pid_t pid = getpid();
82
83 SKIP_IF(!have_htm());
84 SKIP_IF(htm_is_synthetic());
85
86 act.sa_sigaction = signal_usr1;
87 sigemptyset(&act.sa_mask);
88 act.sa_flags = SA_SIGINFO;
89 if (sigaction(SIGUSR1, &act, NULL) < 0) {
90 perror("sigaction sigusr1");
91 exit(1);
92 }
93
94 i = 0;
95 while (i < MAX_ATTEMPT && !broken) {
96
97
98
99
100
101
102 rc = tm_signal_self_context_load(pid, gprs, NULL, NULL, NULL);
103 FAIL_IF(rc != pid);
104 i++;
105 }
106
107 return broken;
108}
109
110int main(void)
111{
112 return test_harness(tm_signal_context_chk_gpr, "tm_signal_context_chk_gpr");
113}
114