dump.c

#include <sys/types.h>
#include <unistd.h>
#include <stdio.h>

int test(int x, int y) {
    return x + y - x * y;
}
int end() {
    return 0;
}

int main() {
    pid_t pid = getpid();
    char cmd[1024];
    char tempfile[] = "/tmp/procmem-XXXXXX";
    int fd = mkstemp(tempfile);
    write(fd, &test, &end - &test);
    close(fd);
    snprintf(cmd, 1024, "objdump -b binary -m i386 -M att-mnemonic,x86-64 --adjust-vma=%p -D %s", &test, tempfile);
    fprintf(stderr, "running: '%s'\n", cmd);
    system(cmd);
    fprintf(stderr, "done\n");
    unlink(tempfile);
    return 0;
}