// vim:shiftwidth=2:expandtab
#include <stdio.h>
-#include <string.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-#include <sys/mman.h>
-#include <unistd.h>
-#include <sys/ioctl.h>
#include "header.h"
#include "sys_cacheflush.h"
-#if 0
-#define strace printf
-#else
-#define strace(...)
-#endif
+#include "override.c"
// note: first mask must be always full for search algo
static const unsigned int sig_mask_all[] = {
};
#define sig_mask_mmap sig_mask_all
-static const unsigned int sig_mmap_[] = {
+static const unsigned int sig_mmap2[] = {
0xe52d5004, 0xe59d5008, 0xe52d4004, 0xe59d4008,
0xe1b0ca05, 0x1a000006, 0xe1a05625, 0xef9000c0
};
-#define sig_mask_mmap_ sig_mask_all
+#define sig_mask_mmap2 sig_mask_all
static const unsigned int sig_read[] = {
0xe59fc080, 0xe59cc000, 0xe33c0000, 0x1a000003, 0xef900003
0xffffffff, 0xffffffff, 0xffffffff, 0xff000000, 0xff000000
};
-static const struct dev_fd_t takeover_devs[] = {
- { "/dev/mem", FAKEDEV_MEM },
- { "/dev/GPIO", FAKEDEV_GPIO },
- { "/dev/fb0", FAKEDEV_FB0 },
- { "/dev/fb/0", FAKEDEV_FB0 },
- { "/dev/fb1", FAKEDEV_FB1 },
- { "/dev/fb/1", FAKEDEV_FB1 },
- { "/dev/mmuhack", FAKEDEV_MMUHACK },
-};
-
-static int w_open(const char *pathname, int flags, mode_t mode)
-{
- int i, ret;
-
- for (i = 0; i < ARRAY_SIZE(takeover_devs); i++) {
- if (strcmp(pathname, takeover_devs[i].name) == 0) {
- ret = takeover_devs[i].fd;
- break;
- }
- }
-
- if (i == ARRAY_SIZE(takeover_devs))
- ret = open(pathname, flags, mode);
-
- if (ret >= 0) {
- for (i = 0; emu_interesting_fds[i].name != NULL; i++) {
- if (strcmp(pathname, emu_interesting_fds[i].name) == 0) {
- emu_interesting_fds[i].fd = ret;
- break;
- }
- }
- }
-
- strace("open(%s) = %d\n", pathname, ret);
- return ret;
-}
-
-static void *w_mmap(void *addr, size_t length, int prot, int flags, int fd, off_t offset)
-{
- void *ret;
- if (FAKEDEV_MEM <= fd && fd < FAKEDEV_FD_BOUNDARY)
- ret = emu_do_mmap(length, prot, flags, fd, offset);
- else
- ret = mmap(addr, length, prot, flags, fd, offset);
-
- // threads are using heap before they mmap their stack
- // printf needs valid stack for pthtead/errno
- if (((long)&ret & 0xf0000000) == 0xb0000000)
- strace("mmap(%p, %x, %x, %x, %d, %lx) = %p\n", addr, length, prot, flags, fd, (long)offset, ret);
- return ret;
-}
-#define w_mmap_ w_mmap
-
-static ssize_t w_read(int fd, void *buf, size_t count)
-{
- ssize_t ret;
- if (fd != FAKEDEV_GPIO)
- return read(fd, buf, count);
-
- ret = emu_read_gpiodev(buf, count);
- //strace("read(%d, %p, %d) = %d\n", fd, buf, count, ret);
- return ret;
-}
-
-static int w_ioctl(int fd, int request, void *argp)
-{
- int ret;
-
- if ((FAKEDEV_MEM <= fd && fd < FAKEDEV_FD_BOUNDARY) ||
- fd == emu_interesting_fds[IFD_SOUND].fd)
- ret = emu_do_ioctl(fd, request, argp);
- else
- ret = ioctl(fd, request, argp);
-
- strace("ioctl(%d, %08x, %p) = %d\n", fd, request, argp, ret);
- return ret;
-}
-
-static int w_sigaction(int signum, const void *act, void *oldact)
-{
- strace("sigaction(%d, %p, %p) = %d\n", signum, act, oldact, 0);
- return 0;
-}
#define PATCH(f) { sig_##f, sig_mask_##f, ARRAY_SIZE(sig_##f), w_##f }
} patches[] = {
PATCH(open),
PATCH(mmap),
- PATCH(mmap_), // mmap using mmap2 syscall
+ PATCH(mmap2), // mmap2 syscall
PATCH(read),
PATCH(ioctl),
PATCH(sigaction),