Merge branch 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik...

[pandora-kernel.git] / include / asm-i386 / unwind.h

diff --git a/include/asm-i386/unwind.h b/include/asm-i386/unwind.h
index 4c1a0b9..aa2c931 100644 (file)
--- a/include/asm-i386/unwind.h
+++ b/include/asm-i386/unwind.h
@@ -18,6 +18,7 @@ struct unwind_frame_info
 {
        struct pt_regs regs;
        struct task_struct *task;
+       unsigned call_frame:1;
 };
 
 #define UNW_PC(frame)        (frame)->regs.eip
@@ -28,6 +29,8 @@ struct unwind_frame_info
 #define FRAME_LINK_OFFSET    0
 #define STACK_BOTTOM(tsk)    STACK_LIMIT((tsk)->thread.esp0)
 #define STACK_TOP(tsk)       ((tsk)->thread.esp0)
+#else
+#define UNW_FP(frame) ((void)(frame), 0)
 #endif
 #define STACK_LIMIT(ptr)     (((ptr) - 1) & ~(THREAD_SIZE - 1))
 
@@ -42,6 +45,10 @@ struct unwind_frame_info
        PTREGS_INFO(edi), \
        PTREGS_INFO(eip)
 
+#define UNW_DEFAULT_RA(raItem, dataAlign) \
+       ((raItem).where == Memory && \
+        !((raItem).value * (dataAlign) + 4))
+
 static inline void arch_unw_init_frame_info(struct unwind_frame_info *info,
                                             /*const*/ struct pt_regs *regs)
 {
@@ -64,6 +71,7 @@ static inline void arch_unw_init_blocked(struct unwind_frame_info *info)
        info->regs.xss = __KERNEL_DS;
        info->regs.xds = __USER_DS;
        info->regs.xes = __USER_DS;
+       info->regs.xgs = __KERNEL_PDA;
 }
 
 extern asmlinkage int arch_unwind_init_running(struct unwind_frame_info *,
@@ -71,23 +79,20 @@ extern asmlinkage int arch_unwind_init_running(struct unwind_frame_info *,
                                                                           void *arg),
                                                void *arg);
 
-static inline int arch_unw_user_mode(const struct unwind_frame_info *info)
+static inline int arch_unw_user_mode(/*const*/ struct unwind_frame_info *info)
 {
-#if 0 /* This can only work when selector register and EFLAGS saves/restores
-         are properly annotated (and tracked in UNW_REGISTER_INFO). */
-       return user_mode_vm(&info->regs);
-#else
-       return info->regs.eip < PAGE_OFFSET
+       return user_mode_vm(&info->regs)
+              || info->regs.eip < PAGE_OFFSET
               || (info->regs.eip >= __fix_to_virt(FIX_VDSO)
-                   && info->regs.eip < __fix_to_virt(FIX_VDSO) + PAGE_SIZE)
+                  && info->regs.eip < __fix_to_virt(FIX_VDSO) + PAGE_SIZE)
               || info->regs.esp < PAGE_OFFSET;
-#endif
 }
 
 #else
 
 #define UNW_PC(frame) ((void)(frame), 0)
 #define UNW_SP(frame) ((void)(frame), 0)
+#define UNW_FP(frame) ((void)(frame), 0)
 
 static inline int arch_unw_user_mode(const void *info)
 {