+++ /dev/null
-/*++
-
-Copyright (c) 2004 - 2009, Intel Corporation. All rights reserved.<BR>
-Portions copyright (c) 2008 - 2010, Apple Inc. All rights reserved.<BR>
-This program and the accompanying materials
-are licensed and made available under the terms and conditions of the BSD License
-which accompanies this distribution. The full text of the license may be found at
-http://opensource.org/licenses/bsd-license.php
-
-THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
-WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
-
-Module Name:
-
- UnixThunk.c
-
-Abstract:
-
- Since the SEC is the only program in our emulation we
- must use a Tiano mechanism to export APIs to other modules.
- This is the role of the EFI_UNIX_THUNK_PROTOCOL.
-
- The mUnixThunkTable exists so that a change to EFI_UNIX_THUNK_PROTOCOL
- will cause an error in initializing the array if all the member functions
- are not added. It looks like adding a element to end and not initializing
- it may cause the table to be initaliized with the members at the end being
- set to zero. This is bad as jumping to zero will crash.
-
-
- gUnix is a a public exported global that contains the initialized
- data.
-
---*/
-
-#include "SecMain.h"
-#include "Uefi.h"
-#include "Library/UnixLib.h"
-
-#if defined(__APPLE__) || defined(MDE_CPU_X64)
-#include "Gasket.h"
-#endif
-
-int settimer_initialized;
-struct timeval settimer_timeval;
-void (*settimer_callback)(UINT64 delta);
-
-BOOLEAN gEmulatorInterruptEnabled = FALSE;
-
-
-void
-settimer_handler (int sig)
-{
- struct timeval timeval;
- UINT64 delta;
-
- gettimeofday (&timeval, NULL);
- delta = ((UINT64)timeval.tv_sec * 1000) + (timeval.tv_usec / 1000)
- - ((UINT64)settimer_timeval.tv_sec * 1000)
- - (settimer_timeval.tv_usec / 1000);
- settimer_timeval = timeval;
-
- if (settimer_callback) {
-#if defined(__APPLE__) || defined(MDE_CPU_X64)
- ReverseGasketUint64 (settimer_callback, delta);
-#else
- (*settimer_callback)(delta);
-#endif
- }
-}
-
-VOID
-SetTimer (UINT64 PeriodMs, VOID (*CallBack)(UINT64 DeltaMs))
-{
- struct itimerval timerval;
- UINT32 remainder;
-
- if (!settimer_initialized) {
- struct sigaction act;
-
- settimer_initialized = 1;
- act.sa_handler = settimer_handler;
- act.sa_flags = 0;
- sigemptyset (&act.sa_mask);
- gEmulatorInterruptEnabled = TRUE;
- if (sigaction (SIGALRM, &act, NULL) != 0) {
- printf ("SetTimer: sigaction error %s\n", strerror (errno));
- }
- if (gettimeofday (&settimer_timeval, NULL) != 0) {
- printf ("SetTimer: gettimeofday error %s\n", strerror (errno));
- }
- }
- timerval.it_value.tv_sec = DivU64x32(PeriodMs, 1000);
- DivU64x32Remainder(PeriodMs, 1000, &remainder);
- timerval.it_value.tv_usec = remainder * 1000;
- timerval.it_value.tv_sec = DivU64x32(PeriodMs, 1000);
- timerval.it_interval = timerval.it_value;
-
- if (setitimer (ITIMER_REAL, &timerval, NULL) != 0) {
- printf ("SetTimer: setitimer error %s\n", strerror (errno));
- }
- settimer_callback = CallBack;
-}
-
-
-void
-UnixEnableInterrupt (void)
-{
- sigset_t sigset;
-
- gEmulatorInterruptEnabled = TRUE;
- // Since SetTimer() uses SIGALRM we emulate turning on and off interrupts
- // by enabling/disabling SIGALRM.
- sigemptyset (&sigset);
- sigaddset (&sigset, SIGALRM);
- sigprocmask (SIG_UNBLOCK, &sigset, NULL);
-}
-
-
-void
-UnixDisableInterrupt (void)
-{
- sigset_t sigset;
-
- // Since SetTimer() uses SIGALRM we emulate turning on and off interrupts
- // by enabling/disabling SIGALRM.
- sigemptyset (&sigset);
- sigaddset (&sigset, SIGALRM);
- sigprocmask (SIG_BLOCK, &sigset, NULL);
- gEmulatorInterruptEnabled = FALSE;
-}
-
-
-BOOLEAN
-UnixInterruptEanbled (void)
-{
- return gEmulatorInterruptEnabled;
-}
-
-
-
-void
-msSleep (unsigned long Milliseconds)
-{
- struct timespec rq, rm;
- struct timeval start, end;
- unsigned long MicroSec;
-
- rq.tv_sec = Milliseconds / 1000;
- rq.tv_nsec = (Milliseconds % 1000) * 1000000;
-
- //
- // nanosleep gets interrupted by our timer tic.
- // we need to track wall clock time or we will stall for way too long
- //
- gettimeofday (&start, NULL);
- end.tv_sec = start.tv_sec + rq.tv_sec;
- MicroSec = (start.tv_usec + rq.tv_nsec/1000);
- end.tv_usec = MicroSec % 1000000;
- if (MicroSec > 1000000) {
- end.tv_sec++;
- }
-
- while (nanosleep (&rq, &rm) == -1) {
- if (errno != EINTR) {
- break;
- }
- gettimeofday (&start, NULL);
- if (start.tv_sec > end.tv_sec) {
- break;
- } if ((start.tv_sec == end.tv_sec) && (start.tv_usec > end.tv_usec)) {
- break;
- }
- rq = rm;
- }
-}
-
-void
-GetLocalTime (EFI_TIME *Time)
-{
- struct tm *tm;
- time_t t;
-
- t = time (NULL);
- tm = localtime (&t);
-
- Time->Year = 1900 + tm->tm_year;
- Time->Month = tm->tm_mon + 1;
- Time->Day = tm->tm_mday;
- Time->Hour = tm->tm_hour;
- Time->Minute = tm->tm_min;
- Time->Second = tm->tm_sec;
- Time->Nanosecond = 0;
- Time->TimeZone = GetTimeZone ();
- Time->Daylight = (daylight ? EFI_TIME_ADJUST_DAYLIGHT : 0)
- | (tm->tm_isdst > 0 ? EFI_TIME_IN_DAYLIGHT : 0);
-}
-
-void
-TzSet (void)
-{
- STATIC int done = 0;
- if (!done) {
- tzset ();
- done = 1;
- }
-}
-
-long
-GetTimeZone(void)
-{
- TzSet ();
- return timezone;
-}
-
-int
-GetDayLight(void)
-{
- TzSet ();
- return daylight;
-}
-
-int
-GetErrno(void)
-{
- return errno;
-}
-
-
-extern EFI_STATUS
-UgaCreate(struct _EFI_UNIX_UGA_IO_PROTOCOL **UgaIo, CONST CHAR16 *Title);
-
-EFI_UNIX_THUNK_PROTOCOL mUnixThunkTable = {
- EFI_UNIX_THUNK_PROTOCOL_SIGNATURE,
-#if defined(__APPLE__) || defined(MDE_CPU_X64)
-//
-// Mac OS X requires the stack to be 16-byte aligned for IA-32. So on an OS X build
-// we add an assembly wrapper that makes sure the stack ges aligned.
-// This has the nice benfit of being able to run EFI ABI code, like the EFI shell
-// that is checked in to source control in the OS X version of the emulator
-//
- GasketmsSleep, /* Sleep */
- Gasketexit, /* Exit */
- GasketSetTimer,
- GasketGetLocalTime,
- Gasketgmtime,
- GasketGetTimeZone,
- GasketGetDayLight,
- Gasketpoll,
- Gasketread,
- Gasketwrite,
- Gasketgetenv,
- Gasketopen,
- Gasketlseek,
- Gasketftruncate,
- Gasketclose,
- Gasketmkdir,
- Gasketrmdir,
- Gasketunlink,
- GasketGetErrno,
- Gasketopendir,
- Gasketrewinddir,
- Gasketreaddir,
- Gasketclosedir,
- Gasketstat,
- Gasketstatfs,
- Gasketrename,
- Gasketmktime,
- Gasketfsync,
- Gasketchmod,
- Gasketutime,
- Gaskettcflush,
- GasketUgaCreate,
- Gasketperror,
- Gasketioctl,
- Gasketfcntl,
- Gasketcfsetispeed,
- Gasketcfsetospeed,
- Gaskettcgetattr,
- Gaskettcsetattr,
- GasketUnixPeCoffGetEntryPoint,
- GasketUnixPeCoffRelocateImageExtraAction,
- GasketUnixPeCoffUnloadImageExtraAction,
-
- GasketUnixEnableInterrupt,
- GasketUnixDisableInterrupt,
-
- Gasketgetifaddrs,
- Gasketfreeifaddrs,
- Gasketsocket,
-
-#else
- msSleep, /* Sleep */
- exit, /* Exit */
- SetTimer,
- GetLocalTime,
- gmtime,
- GetTimeZone,
- GetDayLight,
- (UnixPoll)poll,
- (UnixRead)read,
- (UnixWrite)write,
- getenv,
- (UnixOpen)open,
- (UnixSeek)lseek,
- (UnixFtruncate)ftruncate,
- close,
- mkdir,
- rmdir,
- unlink,
- GetErrno,
- opendir,
- rewinddir,
- readdir,
- closedir,
- (UnixStat)stat,
- statfs,
- rename,
- mktime,
- fsync,
- chmod,
- utime,
- tcflush,
- UgaCreate,
- perror,
- ioctl,
- fcntl,
- cfsetispeed,
- cfsetospeed,
- tcgetattr,
- tcsetattr,
- SecPeCoffGetEntryPoint,
- SecPeCoffRelocateImageExtraAction,
- SecPeCoffLoaderUnloadImageExtraAction,
- UnixEnableInterrupt,
- UnixDisableInterrupt,
- getifaddrs,
- freeifaddrs,
- socket
-#endif
-};
-
-
-EFI_UNIX_THUNK_PROTOCOL *gUnix = &mUnixThunkTable;
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