X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?p=ginge.git;a=blobdiff_plain;f=loader%2Femu.c;h=f14b0fc64334f1bdc8bd439fd80ebe6979169097;hp=8dc6d51bae91d97f56963b8bc0ef6f8216128807;hb=3ef07128a8ad8a12688beee244c5e0a2629581de;hpb=ad37f577261dad19e7b0c7aedf68a800f13ed515

diff --git a/loader/emu.c b/loader/emu.c
index 8dc6d51..f14b0fc 100644
--- a/loader/emu.c
+++ b/loader/emu.c
@@ -1081,7 +1081,7 @@ static void *emu_mmap_dev(unsigned int length, int prot, int flags, unsigned int
     err("warning: uppermem @ %08x overflows by %d bytes\n",
         offset, umem + length - umem_end);
 
-  dbg("upper mem @ %08x %d\n", offset, length);
+  dbg("upper mem @ %08x %x = %p\n", offset, length, umem);
   return umem;
 }
 
@@ -1101,6 +1101,19 @@ void *emu_do_mmap(unsigned int length, int prot, int flags, int fd, unsigned int
   return MAP_FAILED;
 }
 
+int emu_do_munmap(void *addr, unsigned int length)
+{
+  u8 *p = addr;
+
+  // don't allow to unmap upper mem
+  if ((u8 *)mmsp2.umem <= p && p < (u8 *)mmsp2.umem + 0x2000000) {
+    dbg("ignoring munmap: %p %x\n", addr, length);
+    return 0;
+  }
+
+  return -EAGAIN;
+}
+
 static void emu_sound_open(int fd)
 {
 #ifdef PND