114 lines
2.1 KiB
C
114 lines
2.1 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
|
|
/*
|
|
* Ptrace test for VMX/VSX registers
|
|
*
|
|
* Copyright (C) 2015 Anshuman Khandual, IBM Corporation.
|
|
*/
|
|
#include "ptrace.h"
|
|
#include "ptrace-vsx.h"
|
|
|
|
/* Tracer and Tracee Shared Data */
|
|
int shm_id;
|
|
int *cptr, *pptr;
|
|
|
|
unsigned long fp_load[VEC_MAX];
|
|
unsigned long fp_load_new[VEC_MAX];
|
|
unsigned long fp_store[VEC_MAX];
|
|
|
|
void vsx(void)
|
|
{
|
|
int ret;
|
|
|
|
cptr = (int *)shmat(shm_id, NULL, 0);
|
|
loadvsx(fp_load, 0);
|
|
cptr[1] = 1;
|
|
|
|
while (!cptr[0])
|
|
asm volatile("" : : : "memory");
|
|
shmdt((void *) cptr);
|
|
|
|
storevsx(fp_store, 0);
|
|
ret = compare_vsx_vmx(fp_store, fp_load_new);
|
|
if (ret)
|
|
exit(1);
|
|
exit(0);
|
|
}
|
|
|
|
int trace_vsx(pid_t child)
|
|
{
|
|
unsigned long vsx[VSX_MAX];
|
|
unsigned long vmx[VMX_MAX + 2][2];
|
|
|
|
FAIL_IF(start_trace(child));
|
|
FAIL_IF(show_vsx(child, vsx));
|
|
FAIL_IF(validate_vsx(vsx, fp_load));
|
|
FAIL_IF(show_vmx(child, vmx));
|
|
FAIL_IF(validate_vmx(vmx, fp_load));
|
|
|
|
memset(vsx, 0, sizeof(vsx));
|
|
memset(vmx, 0, sizeof(vmx));
|
|
load_vsx_vmx(fp_load_new, vsx, vmx);
|
|
|
|
FAIL_IF(write_vsx(child, vsx));
|
|
FAIL_IF(write_vmx(child, vmx));
|
|
FAIL_IF(stop_trace(child));
|
|
|
|
return TEST_PASS;
|
|
}
|
|
|
|
int ptrace_vsx(void)
|
|
{
|
|
pid_t pid;
|
|
int ret, status, i;
|
|
|
|
shm_id = shmget(IPC_PRIVATE, sizeof(int) * 2, 0777|IPC_CREAT);
|
|
|
|
for (i = 0; i < VEC_MAX; i++)
|
|
fp_load[i] = i + rand();
|
|
|
|
for (i = 0; i < VEC_MAX; i++)
|
|
fp_load_new[i] = i + 2 * rand();
|
|
|
|
pid = fork();
|
|
if (pid < 0) {
|
|
perror("fork() failed");
|
|
return TEST_FAIL;
|
|
}
|
|
|
|
if (pid == 0)
|
|
vsx();
|
|
|
|
if (pid) {
|
|
pptr = (int *)shmat(shm_id, NULL, 0);
|
|
while (!pptr[1])
|
|
asm volatile("" : : : "memory");
|
|
|
|
ret = trace_vsx(pid);
|
|
if (ret) {
|
|
kill(pid, SIGTERM);
|
|
shmdt((void *)pptr);
|
|
shmctl(shm_id, IPC_RMID, NULL);
|
|
return TEST_FAIL;
|
|
}
|
|
|
|
pptr[0] = 1;
|
|
shmdt((void *)pptr);
|
|
|
|
ret = wait(&status);
|
|
shmctl(shm_id, IPC_RMID, NULL);
|
|
if (ret != pid) {
|
|
printf("Child's exit status not captured\n");
|
|
return TEST_FAIL;
|
|
}
|
|
|
|
return (WIFEXITED(status) && WEXITSTATUS(status)) ? TEST_FAIL :
|
|
TEST_PASS;
|
|
}
|
|
return TEST_PASS;
|
|
}
|
|
|
|
int main(int argc, char *argv[])
|
|
{
|
|
return test_harness(ptrace_vsx, "ptrace_vsx");
|
|
}
|