inode.c: gcc 6809 workaround

diff --git a/Kernel/inode.c b/Kernel/inode.c
index aa8b63f..d7b13d6 100644 (file)
--- a/Kernel/inode.c
+++ b/Kernel/inode.c
@@ -94,7 +94,10 @@ void readi(inoptr ino, uint8_t flag)
 
                                brelse(bp);
                        }
-
+                       /* Bletch */
+#if defined(__M6809__)
+                        gcc_miscompile_workaround();
+#endif                        
                        udata.u_base += amount;
                        udata.u_offset += amount;
                        if (ispipe && udata.u_offset >= 18 * BLKSIZE)
@@ -173,6 +176,12 @@ void writei(inoptr ino, uint8_t flag)
                while (towrite) {
                        amount = min(towrite, BLKSIZE - BLKOFF(udata.u_offset));
 
+                        if (udata.u_offset >> BLKOVERSIZE) {
+                                udata.u_error = EFBIG;
+                                ssig(udata.u_ptab, SIGXFSZ);
+                                break;
+                        }
+
                        if ((pblk =
                             bmap(ino, udata.u_offset >> BLKSHIFT,
                                  0)) == NULLBLK)
@@ -279,8 +288,6 @@ inoptr rwsetup(bool is_read, uint8_t * flag)
                oftp->o_ptr = ino->c_node.i_size;
        /* Initialize u_offset from file pointer */
        udata.u_offset = oftp->o_ptr;
-       /* FIXME: for 32bit we will need to check for overflow of the
-           file size here in the r/w inode code */
        return (ino);
 }