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| author | charlet <charlet@138bc75d-0d04-0410-961f-82ee72b054a4> | 2007-08-14 08:44:14 +0000 |
|---|---|---|
| committer | charlet <charlet@138bc75d-0d04-0410-961f-82ee72b054a4> | 2007-08-14 08:44:14 +0000 |
| commit | f23c9933c11f9ff303565d97611d583fa550b2a4 (patch) | |
| tree | ab952ee805e9aed74a88701e2571302c7e3bcd3f /gcc/ada/s-stchop.ads | |
| parent | 89ce0207a2cbb8db3490005868cca90b94dc6e6e (diff) | |
| download | gcc-f23c9933c11f9ff303565d97611d583fa550b2a4.tar.gz | |
2007-08-14 Olivier Hainque <hainque@adacore.com>
* s-taprop-linux.adb (Get_Stack_Attributes): New subprogram. Fetch the
stack size and initial stack pointer value for a given task.
(Enter_Task): Get the stack attributes of the task we are entering and
let the stack checking engine know about them.
* s-stchop.adb, s-stchop.ads (Notify_Stack_Attributes): New subprogram.
Let the stack-checking engine know about the initial sp value and stack
size associated with the current task.
(Set_Stack_Info): If a stack base has been notified for the current
task, honor it. Fallback to the previous less accurate method otherwise.
* s-stchop-vxworks.adb (Notify_Stack_Attributes): Dummy body.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@127435 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/ada/s-stchop.ads')
| -rw-r--r-- | gcc/ada/s-stchop.ads | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/gcc/ada/s-stchop.ads b/gcc/ada/s-stchop.ads index 1c2f2a7ef91..9c38fc98cd8 100644 --- a/gcc/ada/s-stchop.ads +++ b/gcc/ada/s-stchop.ads @@ -6,7 +6,7 @@ -- -- -- S p e c -- -- -- --- Copyright (C) 1999-2006, Free Software Foundation, Inc. -- +-- Copyright (C) 1999-2007, Free Software Foundation, Inc. -- -- -- -- GNARL is free software; you can redistribute it and/or modify it under -- -- terms of the GNU General Public License as published by the Free Soft- -- @@ -42,6 +42,8 @@ pragma Polling (Off); -- Turn off polling, we do not want polling to take place during stack -- checking operations. It causes infinite loops and other problems. +with System.Storage_Elements; + package System.Stack_Checking.Operations is pragma Preelaborate; @@ -59,6 +61,14 @@ package System.Stack_Checking.Operations is function Stack_Check (Stack_Address : System.Address) return Stack_Access; -- This version of Stack_Check should not be inlined + procedure Notify_Stack_Attributes + (Initial_SP : System.Address; + Size : System.Storage_Elements.Storage_Offset); + -- Register Initial_SP as the initial stack pointer value for the current + -- task when it starts and Size as the associated stack area size. This + -- should be called once, after the soft-links have been initialized and + -- prior to the first "Stack_Check" call. + private Cache : aliased Stack_Access := Null_Stack; |