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24#include <stdlib.h>
25#include <stdio.h>
26#include <string.h>
27#include <signal.h>
28#include <unistd.h>
29
30#include <altivec.h>
31
32#include "utils.h"
33#include "tm.h"
34
35#define MAX_ATTEMPT 500000
36
37#define NV_VSX_REGS 12
38
39long tm_signal_self_context_load(pid_t pid, long *gprs, double *fps, vector int *vms, vector int *vss);
40
41static sig_atomic_t fail;
42
43vector int vss[] = {
44 {1, 2, 3, 4 },{5, 6, 7, 8 },{9, 10,11,12},
45 {13,14,15,16},{17,18,19,20},{21,22,23,24},
46 {25,26,27,28},{29,30,31,32},{33,34,35,36},
47 {37,38,39,40},{41,42,43,44},{45,46,47,48},
48 {-1, -2, -3, -4 },{-5, -6, -7, -8 },{-9, -10,-11,-12},
49 {-13,-14,-15,-16},{-17,-18,-19,-20},{-21,-22,-23,-24},
50 {-25,-26,-27,-28},{-29,-30,-31,-32},{-33,-34,-35,-36},
51 {-37,-38,-39,-40},{-41,-42,-43,-44},{-45,-46,-47,-48}
52};
53
54static void signal_usr1(int signum, siginfo_t *info, void *uc)
55{
56 int i;
57 uint8_t vsc[sizeof(vector int)];
58 uint8_t vst[sizeof(vector int)];
59 ucontext_t *ucp = uc;
60 ucontext_t *tm_ucp = ucp->uc_link;
61
62
63
64
65
66
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68
69
70
71 long *vsx_ptr = (long *)(ucp->uc_mcontext.v_regs + 1);
72 long *tm_vsx_ptr = (long *)(tm_ucp->uc_mcontext.v_regs + 1);
73 for (i = 0; i < NV_VSX_REGS && !fail; i++) {
74 memcpy(vsc, &ucp->uc_mcontext.fp_regs[i + 20], 8);
75 memcpy(vsc + 8, &vsx_ptr[20 + i], 8);
76 fail = memcmp(vsc, &vss[i], sizeof(vector int));
77 memcpy(vst, &tm_ucp->uc_mcontext.fp_regs[i + 20], 8);
78 memcpy(vst + 8, &tm_vsx_ptr[20 + i], 8);
79 fail |= memcmp(vst, &vss[i + NV_VSX_REGS], sizeof(vector int));
80
81 if (fail) {
82 int j;
83
84 fprintf(stderr, "Failed on %d vsx 0x", i);
85 for (j = 0; j < 16; j++)
86 fprintf(stderr, "%02x", vsc[j]);
87 fprintf(stderr, " vs 0x");
88 for (j = 0; j < 16; j++)
89 fprintf(stderr, "%02x", vst[j]);
90 fprintf(stderr, "\n");
91 }
92 }
93}
94
95static int tm_signal_context_chk()
96{
97 struct sigaction act;
98 int i;
99 long rc;
100 pid_t pid = getpid();
101
102 SKIP_IF(!have_htm());
103
104 act.sa_sigaction = signal_usr1;
105 sigemptyset(&act.sa_mask);
106 act.sa_flags = SA_SIGINFO;
107 if (sigaction(SIGUSR1, &act, NULL) < 0) {
108 perror("sigaction sigusr1");
109 exit(1);
110 }
111
112 i = 0;
113 while (i < MAX_ATTEMPT && !fail) {
114 rc = tm_signal_self_context_load(pid, NULL, NULL, NULL, vss);
115 FAIL_IF(rc != pid);
116 i++;
117 }
118
119 return fail;
120}
121
122int main(void)
123{
124 return test_harness(tm_signal_context_chk, "tm_signal_context_chk_vsx");
125}
126