78 lines
3.1 KiB
C
78 lines
3.1 KiB
C
#include <linux/limits.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <occlum_pal_api.h>
|
|
|
|
//============================================================================
|
|
// Help message
|
|
//============================================================================
|
|
|
|
#define HELP_MSG \
|
|
"%s\n" \
|
|
"A benchmark program that measures the memory throughput across the enclave.\n" \
|
|
"\n" \
|
|
"Usage:\n" \
|
|
" %s <total_bytes>\n" \
|
|
"\n" \
|
|
"Arguments:\n" \
|
|
" <total_bytes> The total number of bytes that are copied from the outside of an enclave to the inside" \
|
|
"\n" \
|
|
"Note:\n" \
|
|
" This simple benchmark program showcases the power of the embedded mode of Occlum, " \
|
|
"which enables sharing memory between the inside and outside of an enclave." \
|
|
"The embedded mode makes it possible to build Occlum-based SGX apps " \
|
|
"that comprise of trusted and untrused halves.\n"
|
|
|
|
static void print_help_msg(const char* prog_name) {
|
|
fprintf(stderr, HELP_MSG, prog_name, prog_name);
|
|
}
|
|
|
|
//============================================================================
|
|
// Main
|
|
//============================================================================
|
|
|
|
int main(int argc, char* argv[]) {
|
|
// Parse arguments
|
|
const char* prog_name = (const char*)argv[0];
|
|
if (argc < 2) {
|
|
fprintf(stderr, "error: require one argument\n\n");
|
|
print_help_msg(prog_name);
|
|
return EXIT_FAILURE;
|
|
}
|
|
const char* total_bytes_str = argv[1];
|
|
|
|
// Init Occlum PAL
|
|
occlum_pal_attr_t pal_attr = OCCLUM_PAL_ATTR_INITVAL;
|
|
pal_attr.instance_dir = ".occlum";
|
|
if (occlum_pal_init(&pal_attr) < 0) {
|
|
return EXIT_FAILURE;
|
|
}
|
|
|
|
// The buffer shared between the outside and inside the enclave
|
|
char shared_buf[1024 * 1024] = {0};
|
|
|
|
// Prepare cmd path and arguments
|
|
const char* cmd_path = "/bin/trusted_memcpy_bench";
|
|
char buf_ptr_str[32] = {0};
|
|
char buf_size_str[32] = {0};
|
|
snprintf(buf_ptr_str, sizeof buf_ptr_str, "%lu", (unsigned long) shared_buf);
|
|
snprintf(buf_size_str, sizeof buf_size_str, "%lu", sizeof shared_buf);
|
|
const char* cmd_args[] = {
|
|
buf_ptr_str, // buf_ptr
|
|
buf_size_str, // buf_size
|
|
total_bytes_str, // total_bytes
|
|
NULL
|
|
};
|
|
|
|
// Use Occlum PAL to execute the cmd
|
|
int exit_status = 0;
|
|
if (occlum_pal_exec(cmd_path, cmd_args, NULL, &exit_status) < 0) {
|
|
return EXIT_FAILURE;
|
|
}
|
|
|
|
// Destroy Occlum PAL
|
|
occlum_pal_destroy();
|
|
|
|
return exit_status;
|
|
}
|