On Wed, 2008-03-26 at 10:16 +0000, Xen staging patchbot-unstable wrote:
> # HG changeset patch
> # User Keir Fraser <keir.fraser@xxxxxxxxxx>
> # Date 1206526490 0
> # Node ID 5d25187bac941611a8a836b668a398a72df0afb0
> # Parent 966c04d42e94546287a1145c82e13073f28ef116
> Explicitly tag every anonymous aggregate in the public headers.
My previous fix allowed this to build on ia64, but it turns out
there's still a boot issue that I don't understand. As is, we take a
nested dtlb fault on boot, which hg bisect determines is caused by this
patch. From a simple test program, I can verify that only the outermost
__extension__ is necessary to include code w/ -std=c99. So embedding an
__extension__ within an __extension__ isn't necessary, but I don't know
why it actually changes the behavior of the code. The patch below
reverts a few chucks of this cset and gets us booting again. FWIW, I'm
using gcc-4.1.2. Thanks,
Alex
Signed-off-by: Alex Williamson <alex.williamson@xxxxxx>
---
diff -r 6736c28a0d35 xen/include/public/arch-ia64.h
--- a/xen/include/public/arch-ia64.h Fri Mar 28 17:58:36 2008 +0000
+++ b/xen/include/public/arch-ia64.h Fri Mar 28 14:51:41 2008 -0600
@@ -182,7 +182,7 @@ struct mapped_regs {
unsigned long reserved4[76];
__anonymous_union {
unsigned long vcr[128];
- __anonymous_struct {
+ struct {
unsigned long dcr; // CR0
unsigned long itm;
unsigned long iva;
@@ -216,7 +216,7 @@ struct mapped_regs {
};
__anonymous_union {
unsigned long reserved5[128];
- __anonymous_struct {
+ struct {
unsigned long precover_ifs;
unsigned long unat; // not sure if this is needed until NaT arch
is done
int interrupt_collection_enabled; // virtual psr.ic
@@ -609,7 +609,7 @@ struct xen_ia64_opt_feature {
unsigned long cmd; /* Which feature */
unsigned char on; /* Switch feature on/off */
__anonymous_union {
- __anonymous_struct {
+ struct {
/* The page protection bit mask of the pte.
* This will be or'ed with the pte. */
unsigned long pgprot;
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