diff options
| author | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2006-09-19 00:25:04 +0000 |
|---|---|---|
| committer | Thomas Schwinge <tschwinge@gnu.org> | 2009-06-18 00:26:41 +0200 |
| commit | 99ee9de277063ced53fc7c4a396aeaf8ceab16bd (patch) | |
| tree | 61b147bf24178f8323b7cc79b57ffbd012c3312a | |
| parent | 3b4a7fb1606e5774447a1571991a5005b69dcdd1 (diff) | |
2006-09-19 Samuel Thibault <samuel.thibault@ens-lyon.org>
Fix against gcc 4.1's optimizations.
* i386/i386/seg.h (struct pseudo_descriptor): Pack structure and
move the padding field to the end.
(lgdt): Pass the whole structure to the lgdt assembly command.
(lidt): Likewise.
| -rw-r--r-- | ChangeLog | 9 | ||||
| -rw-r--r-- | i386/i386/seg.h | 8 |
2 files changed, 13 insertions, 4 deletions
@@ -1,3 +1,12 @@ +2006-09-19 Samuel Thibault <samuel.thibault@ens-lyon.org> + + Fix against gcc 4.1's optimizations. + + * i386/i386/seg.h (struct pseudo_descriptor): Pack structure and + move the padding field to the end. + (lgdt): Pass the whole structure to the lgdt assembly command. + (lidt): Likewise. + 2006-08-06 Thomas Schwinge <tschwinge@gnu.org> * DEVELOPMENT: Update. diff --git a/i386/i386/seg.h b/i386/i386/seg.h index a71611d..d95bff9 100644 --- a/i386/i386/seg.h +++ b/i386/i386/seg.h @@ -121,20 +121,20 @@ struct real_gate { /* Format of a "pseudo-descriptor", used for loading the IDT and GDT. */ struct pseudo_descriptor { - short pad; unsigned short limit; unsigned long linear_base; -}; + short pad; +} __attribute__((packed)); /* Load the processor's IDT, GDT, or LDT pointers. */ MACH_INLINE void lgdt(struct pseudo_descriptor *pdesc) { - __asm volatile("lgdt %0" : : "m" (pdesc->limit)); + __asm volatile("lgdt %0" : : "m" (*pdesc)); } MACH_INLINE void lidt(struct pseudo_descriptor *pdesc) { - __asm volatile("lidt %0" : : "m" (pdesc->limit)); + __asm volatile("lidt %0" : : "m" (*pdesc)); } MACH_INLINE void lldt(unsigned short ldt_selector) { |