@@ -1,86 +1,43 @@
-/*
- * We will discard whatever we captured unless
- * we have a dlopen -> open -> mmap call chain.
- */
-
-BEGIN
-{
- d = 0; /* depth */
-}
-
pid$target::dlopen:entry
/arg0/
{
- printf("opening %s\n", copyinstr(arg0));
+ self->path = copyinstr(arg0);
}
-pid$target::dlopen:entry
-/arg0/
+pid$target::dlopen:return
+/self->path != 0/
{
- self->path[d] = copyinstr(arg0);
- self->spec[d] = speculation();
- d++;
- speculate(self->spec[d]);
-
- printf("\n\n");
- printf("dlopen(\"%s\", ...)\n", self->path[d]);
+ self->path = 0;
}
-pid$target::open:entry
-/self->spec[d] && self->path[d] != 0 && self->path[d] == copyinstr(arg0)/
-{
- speculate(self->spec[d]);
- self->savefd[d] = 1;
-}
+/* opening the same file */
-pid$target::open:return
-/self->spec[d] && self->savefd[d]/
-{
- speculate(self->spec[d]);
- self->fd[d] = arg1;
- printf(" -> open(\"%s\", ...) = %d\n", self->path[d], self->fd[d]);
-}
-
-pid$target::mmap:entry
-/self->spec[d] && self->fd[d] && self->fd[d] == arg4/
+pid$target::open:entry
+/self->path != 0 && self->path == copyinstr(arg0)/
{
- speculate(self->spec[d]);
- self->mmap_addr[d] = arg0;
- self->mmap_len[d] = arg1;
- self->mmap_fd[d] = arg4;
- self->mmap_offset[d] = arg5;
- printf(" -> mmap(%x, %u, ..., ..., %d, %u)\n",
- self->mmap_addr[d], self->mmap_len[d],
- self->mmap_fd[d], self->mmap_offset[d]);
+ self->savefd = 1;
}
-pid$target::dlopen:return
-/self->spec[d] && self->fd[d]/
-{
- commit(self->spec[d]);
- self->spec[d] = 0;
-}
+/* save file descriptor of a dlopen-ed library */
-pid$target::dlopen:return
-/self->spec[d]/
+pid$target::open:return
+/self->savefd/
{
- discard(self->spec[d]);
- self->spec[d] = 0;
+ self->fd[arg1] = self->path;
+ self->savefd = 0;
}
-pid$target::dlopen:return
-{
- self->path[d] = 0;
- self->savefd[d] = 0;
- self->fd[d] = 0;
-}
+/* mmap-ing a library we know about */
-pid$target::dlopen:return
-/d > 0/
+pid$target::mmap:entry
+/self->fd[arg4] != 0/
{
- d--;
+ self->mmap_addr = arg0;
+ self->mmap_len = arg1;
+ self->mmap_fd = arg4;
+ self->mmap_offset = arg5;
+ this->path = self->fd[arg4];
+
+ printf("mapping %u bytes of %s from offset %d to address 0x%x\n\n",
+ self->mmap_len, this->path, self->mmap_offset, self->mmap_addr);
}
-
-
-
-
lib.d
a46daf9087f0e88d080118980577e787e502537a
wagerlabs
joelr1@gmail.com
http://github.com/wagerlabs/firefox-startup/commit/6bc117cf5f962a89bf81ff6ac5c6d50912e26ae4
6bc117cf5f962a89bf81ff6ac5c6d50912e26ae4
2009-10-25T13:22:02-07:00
2009-10-25T13:22:02-07:00
more or less working
4da01bba5d1b2cdab3f2b75e09e951706374085b
wagerlabs
joelr1@gmail.com