diff options
Diffstat (limited to 'sandbox/linux/seccomp/securemem.h')
| -rw-r--r-- | sandbox/linux/seccomp/securemem.h | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/sandbox/linux/seccomp/securemem.h b/sandbox/linux/seccomp/securemem.h index 4c208ce..f9a5c97 100644 --- a/sandbox/linux/seccomp/securemem.h +++ b/sandbox/linux/seccomp/securemem.h @@ -1,3 +1,7 @@ +// Copyright (c) 2010 The Chromium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + #ifndef SECURE_MEM_H__ #define SECURE_MEM_H__ @@ -50,7 +54,6 @@ class SecureMem { void* r14; void* r15; #elif defined(__i386__) - void* ret2; void* ebp; void* edi; void* esi; @@ -86,9 +89,9 @@ class SecureMem { char securePage[4096]; }; union { - // This scratch space is used by the trusted thread to read parameters - // for unrestricted system calls. struct { + // This scratch space is used by the trusted thread to read parameters + // for unrestricted system calls. long tmpSyscallNum; void* tmpArg1; void* tmpArg2; @@ -97,6 +100,11 @@ class SecureMem { void* tmpArg5; void* tmpArg6; void* tmpReturnValue; + + // We often have long sequences of calls to gettimeofday(). This is + // needlessly expensive. Coalesce them into a single call. + long lastSyscallNum; + int gettimeofdayCounter; } __attribute__((packed)); char scratchPage[4096]; }; |