Contributors: 2
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Andy Chiu |
253 |
80.06% |
3 |
60.00% |
| Charlie Jenkins |
63 |
19.94% |
2 |
40.00% |
| Total |
316 |
|
5 |
|
// SPDX-License-Identifier: GPL-2.0-only
#include "../hwprobe/hwprobe.h"
#include <asm/vendor/thead.h>
#include <stdbool.h>
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <sys/wait.h>
bool is_xtheadvector_supported(void)
{
struct riscv_hwprobe pair;
pair.key = RISCV_HWPROBE_KEY_VENDOR_EXT_THEAD_0;
riscv_hwprobe(&pair, 1, 0, NULL, 0);
return pair.value & RISCV_HWPROBE_VENDOR_EXT_XTHEADVECTOR;
}
bool is_vector_supported(void)
{
struct riscv_hwprobe pair;
pair.key = RISCV_HWPROBE_KEY_IMA_EXT_0;
riscv_hwprobe(&pair, 1, 0, NULL, 0);
return pair.value & RISCV_HWPROBE_EXT_ZVE32X;
}
int launch_test(char *next_program, int test_inherit, int xtheadvector)
{
char *exec_argv[4], *exec_envp[1];
int rc, pid, status;
pid = fork();
if (pid < 0) {
printf("fork failed %d", pid);
return -1;
}
if (!pid) {
exec_argv[0] = next_program;
exec_argv[1] = test_inherit != 0 ? "x" : NULL;
exec_argv[2] = xtheadvector != 0 ? "x" : NULL;
exec_argv[3] = NULL;
exec_envp[0] = NULL;
/* launch the program again to check inherit */
rc = execve(next_program, exec_argv, exec_envp);
if (rc) {
perror("execve");
printf("child execve failed %d\n", rc);
exit(-1);
}
}
rc = waitpid(-1, &status, 0);
if (rc < 0) {
printf("waitpid failed\n");
return -3;
}
if ((WIFEXITED(status) && WEXITSTATUS(status) == -1) ||
WIFSIGNALED(status)) {
printf("child exited abnormally\n");
return -4;
}
return WEXITSTATUS(status);
}