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-rw-r--r--libc/sysdeps/linux/arm/sys/ucontext.h33
1 files changed, 18 insertions, 15 deletions
diff --git a/libc/sysdeps/linux/arm/sys/ucontext.h b/libc/sysdeps/linux/arm/sys/ucontext.h
index 1260ee594..9ecff7b59 100644
--- a/libc/sysdeps/linux/arm/sys/ucontext.h
+++ b/libc/sysdeps/linux/arm/sys/ucontext.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 1998, 1999, 2001 Free Software Foundation, Inc.
+/* Copyright (C) 1998, 1999, 2001, 2006 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -24,12 +24,15 @@
#include <features.h>
#include <signal.h>
#include <sys/procfs.h>
+
+/* We need the signal context definitions even if they are not used
+ included in <signal.h>. */
#include <bits/sigcontext.h>
typedef int greg_t;
/* Number of general registers. */
-#define NGREG 16
+#define NGREG 18
/* Container for all general registers. */
typedef elf_gregset_t gregset_t;
@@ -74,21 +77,21 @@ enum
/* Structure to describe FPU registers. */
typedef elf_fpregset_t fpregset_t;
-/* Context to describe whole processor state. */
-typedef struct
- {
- gregset_t gregs;
- fpregset_t fpregs;
- } mcontext_t;
+/* Context to describe whole processor state. This only describes
+ the core registers; coprocessor registers get saved elsewhere
+ (e.g. in uc_regspace, or somewhere unspecified on the stack
+ during non-RT signal handlers). */
+typedef struct sigcontext mcontext_t;
/* Userlevel context. */
typedef struct ucontext
-{
- unsigned long uc_flags;
- struct ucontext *uc_link;
- stack_t uc_stack;
- struct sigcontext uc_mcontext;
- sigset_t uc_sigmask; /* mask last for extensibility */
-} ucontext_t;
+ {
+ unsigned long uc_flags;
+ struct ucontext *uc_link;
+ stack_t uc_stack;
+ mcontext_t uc_mcontext;
+ __sigset_t uc_sigmask;
+ unsigned long uc_regspace[128] __attribute__((__aligned__(8)));
+ } ucontext_t;
#endif /* sys/ucontext.h */