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author	Jagan Teki <jagan@amarulasolutions.com>	2019-05-08 11:11:51 +0530
committer	Kever Yang <kever.yang@rock-chips.com>	2019-05-09 18:24:31 +0800
commit	c661c059b9a507baa1704c03f29ff2f79bae2ce2 (patch)
tree	7ec5818baf66413e9a6ee2272eb30371732fa50f /scripts/coreboot.sed
parent	65cc7dcd77aef48ed20d73d17367e32f5cc4e8dd (diff)

doc: rockchip: Add global doc for rk3399 build/flash

Since rockchip have an individual doc/README.rockchip, it would be better to update the same instead of maintaining it separately in board files. So, add the documentation for rk3399 - procedure to build for Rockchip miniloader and U-Boot SPL options - procedure to boot from SD for Rockchip miniloader and U-Boot SPL options - procedure to build ATF, PMU M0 firmware for puma boards - add boot logs of each option, so-that it would help for future boards porting Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com> Reviewed-by: Kever Yang <kever.yang@rock-chips.com>

Diffstat (limited to 'scripts/coreboot.sed')

0 files changed, 0 insertions, 0 deletions

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/* The serial stream class.
 *
 * A serial stream provides serial data access. In theory, serial streams
 * can be implemented via a number of methods (e.g. files or in-memory
 * streams). In practice, there currently only exist the file type (aka
 * "driver").
 *
 * File begun on 2008-01-09 by RGerhards
 * Large modifications in 2009-06 to support using it with omfile, including zip writer.
 * Note that this file obtains the zlib wrapper object is needed, but it never frees it
 * again. While this sounds like a leak (and one may argue it actually is), there is no
 * harm associated with that. The reason is that strm is a core object, so it is terminated
 * only when rsyslogd exists. As we could only release on termination (or else bear more 
 * overhead for keeping track of how many users we have), not releasing zlibw is OK, because
 * it will be released when rsyslogd terminates. We may want to revisit this decision if
 * it turns out to be problematic. Then, we need to quasi-refcount the number of accesses
 * to the object.
 *
 * Copyright 2008, 2009 Rainer Gerhards and Adiscon GmbH.
 *
 * This file is part of the rsyslog runtime library.
 *
 * The rsyslog runtime library is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * The rsyslog runtime library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with the rsyslog runtime library.  If not, see <http://www.gnu.org/licenses/>.
 *
 * A copy of the GPL can be found in the file "COPYING" in this distribution.
 * A copy of the LGPL can be found in the file "COPYING.LESSER" in this distribution.
 */
#include "config.h"

#include <stdlib.h>
#include <string.h>
#include <assert.h>
#include <signal.h>
#include <pthread.h>
#include <fcntl.h>
#include <unistd.h>
#include <sys/stat.h>	 /* required for HP UX */
#include <errno.h>
#include <pthread.h>

#include "rsyslog.h"
#include "stringbuf.h"
#include "srUtils.h"
#include "obj.h"
#include "stream.h"
#include "unicode-helper.h"
#include "module-template.h"
#if HAVE_SYS_PRCTL_H
#  include <sys/prctl.h>
#endif

/* some platforms do not have large file support :( */
#ifndef O_LARGEFILE
#  define O_LARGEFILE 0
#endif
#ifndef HAVE_LSEEK64
   typedef  off_t off64_t;
#  define lseek64(fd, offset, whence) lseek(fd, offset, whence)
#endif

/* static data */
DEFobjStaticHelpers
DEFobjCurrIf(zlibw)

/* forward definitions */
static rsRetVal strmFlushInternal(strm_t *pThis);
static rsRetVal strmWrite(strm_t *pThis, uchar *pBuf, size_t lenBuf);
static rsRetVal strmCloseFile(strm_t *pThis);
static void *asyncWriterThread(void *pPtr);
static rsRetVal doZipWrite(strm_t *pThis, uchar *pBuf, size_t lenBuf);
static rsRetVal strmPhysWrite(strm_t *pThis, uchar *pBuf, size_t lenBuf);


/* methods */

/* Try to resolve a size limit situation. This is used to support custom-file size handlers
 * for omfile. It first runs the command, and then checks if we are still above the size
 * treshold. Note that this works only with single file names, NOT with circular names.
 * Note that pszCurrFName can NOT be taken from pThis, because the stream is closed when
 * we are called (and that destroys pszCurrFName, as there is NO CURRENT file name!). So
 * we need to receive the name as a parameter.
 * initially wirtten 2005-06-21, moved to this class & updates 2009-06-01, both rgerhards
 */
static rsRetVal
resolveFileSizeLimit(strm_t *pThis, uchar *pszCurrFName)
{
	uchar *pParams;
	uchar *pCmd;
	uchar *p;
	off_t actualFileSize;
	rsRetVal localRet;
	DEFiRet;
	ISOBJ_TYPE_assert(pThis, strm);
	assert(pszCurrFName != NULL);

	if(pThis->pszSizeLimitCmd == NULL) {
		ABORT_FINALIZE(RS_RET_NON_SIZELIMITCMD); /* nothing we can do in this case... */
	}
	
	/* we first check if we have command line parameters. We assume this, 
	 * when we have a space in the program name. If we find it, everything after
	 * the space is treated as a single argument.
	 */
	CHKmalloc(pCmd = ustrdup(pThis->pszSizeLimitCmd));

	for(p = pCmd ; *p && *p != ' ' ; ++p) {
		/* JUST SKIP */
	}

	if(*p == ' ') {
		*p = '\0'; /* pretend string-end */
		pParams = p+1;
	} else
		pParams = NULL;

	/* the execProg() below is probably not great, but at least is is
	 * fairly secure now. Once we change the way file size limits are
	 * handled, we should also revisit how this command is run (and
	 * with which parameters).   rgerhards, 2007-07-20
	 */
	execProg(pCmd, 1, pParams);

	free(pCmd);

	localRet = getFileSize(pszCurrFName, &actualFileSize);

	if(localRet == RS_RET_OK && actualFileSize >= pThis->iSizeLimit) {
		ABORT_FINALIZE(RS_RET_SIZELIMITCMD_DIDNT_RESOLVE); /* OK, it didn't work out... */
	} else if(localRet != RS_RET_FILE_NOT_FOUND) {
		/* file not found is OK, the command may have moved away the file */
		ABORT_FINALIZE(localRet);
	}

finalize_it:
	if(iRet != RS_RET_OK) {
		if(iRet == RS_RET_SIZELIMITCMD_DIDNT_RESOLVE) {
			DBGPRINTF("file size limit cmd for file '%s' did no resolve situation\n", pszCurrFName);
		} else {
			DBGPRINTF("file size limit cmd for file '%s' failed with code %d.\n", pszCurrFName, iRet);
		}
		pThis->bDisabled = 1;
	}

	RETiRet;
}


/* Check if the file has grown beyond the configured omfile iSizeLimit
 * and, if so, initiate processing.
 */
static rsRetVal
doSizeLimitProcessing(strm_t *pThis)
{
	uchar *pszCurrFName = NULL;
	DEFiRet;

	ISOBJ_TYPE_assert(pThis, strm);
	ASSERT(pThis->iSizeLimit != 0);
	ASSERT(pThis->fd != -1);

	if(pThis->iCurrOffs >= pThis->iSizeLimit) {
		/* strmCloseFile() destroys the current file name, so we
		 * need to preserve it.
		 */
		CHKmalloc(pszCurrFName = ustrdup(pThis->pszCurrFName));
		CHKiRet(strmCloseFile(pThis));
		CHKiRet(resolveFileSizeLimit(pThis, pszCurrFName));
	}

finalize_it:
	free(pszCurrFName);
	RETiRet;
}


/* now, we define type-specific handlers. The provide a generic functionality,
 * but for this specific type of strm. The mapping to these handlers happens during
 * strm construction. Later on, handlers are called by pointers present in the
 * strm instance object.
 */

/* do the physical open() call on a file.
 */
static rsRetVal
doPhysOpen(strm_t *pThis)
{
	int iFlags = 0;
	DEFiRet;
	ISOBJ_TYPE_assert(pThis, strm);

	/* compute which flags we need to provide to open */
	switch(pThis->tOperationsMode) {
		case STREAMMODE_READ:
			iFlags = O_CLOEXEC | O_NOCTTY | O_RDONLY;
			break;
		case STREAMMODE_WRITE:	/* legacy mode used inside queue engine */
			iFlags = O_CLOEXEC | O_NOCTTY | O_WRONLY | O_CREAT;
			break;
		case STREAMMODE_WRITE_TRUNC:
			iFlags = O_CLOEXEC | O_NOCTTY | O_WRONLY | O_CREAT | O_TRUNC;
			break;
		case STREAMMODE_WRITE_APPEND:
			iFlags = O_CLOEXEC | O_NOCTTY | O_WRONLY | O_CREAT | O_APPEND;
			break;
		default:assert(0);
			break;
	}
	if(pThis->sType == STREAMTYPE_NAMED_PIPE) {
		DBGPRINTF("Note: stream '%s' is a named pipe, open with O_NONBLOCK\n", pThis->pszCurrFName);
		iFlags |= O_NONBLOCK;
	}

	pThis->fd = open((char*)pThis->pszCurrFName, iFlags | O_LARGEFILE, pThis->tOpenMode);
	DBGPRINTF("file '%s' opened as #%d with mode %d\n", pThis->pszCurrFName,
		  pThis->fd, (int) pThis->tOpenMode);
	if(pThis->fd == -1) {
		char errStr[1024];
		int err = errno;
		rs_strerror_r(err, errStr, sizeof(errStr));
		DBGOPRINT((obj_t*) pThis, "open error %d, file '%s': %s\n", errno, pThis->pszCurrFName, errStr);
		if(err == ENOENT)
			ABORT_FINALIZE(RS_RET_FILE_NOT_FOUND);
		else
			ABORT_FINALIZE(RS_RET_IO_ERROR);
	} else {
		if(!ustrcmp(pThis->pszCurrFName, UCHAR_CONSTANT(_PATH_CONSOLE)) || isatty(pThis->fd)) {
			DBGPRINTF("file %d is a tty-type file\n", pThis->fd);
			pThis->bIsTTY = 1;
		} else {
			pThis->bIsTTY = 0;
		}
	}

finalize_it:
	RETiRet;
}


/* open a strm file
 * It is OK to call this function when the stream is already open. In that
 * case, it returns immediately with RS_RET_OK
 */
static rsRetVal strmOpenFile(strm_t *pThis)
{
	DEFiRet;

	ASSERT(pThis != NULL);

	if(pThis->fd != -1)
		ABORT_FINALIZE(RS_RET_OK);

	if(pThis->pszFName == NULL)
		ABORT_FINALIZE(RS_RET_FILE_PREFIX_MISSING);

	if(pThis->sType == STREAMTYPE_FILE_CIRCULAR) {
		CHKiRet(genFileName(&pThis->pszCurrFName, pThis->pszDir, pThis->lenDir,
				    pThis->pszFName, pThis->lenFName, pThis->iCurrFNum, pThis->iFileNumDigits));
	} else {
		if(pThis->pszDir == NULL) {
			if((pThis->pszCurrFName = ustrdup(pThis->pszFName)) == NULL)
				ABORT_FINALIZE(RS_RET_OUT_OF_MEMORY);
		} else {
			CHKiRet(genFileName(&pThis->pszCurrFName, pThis->pszDir, pThis->lenDir,
					    pThis->pszFName, pThis->lenFName, -1, 0));
		}
	}

	CHKiRet(doPhysOpen(pThis));

	pThis->iCurrOffs = 0;
	if(pThis->tOperationsMode == STREAMMODE_WRITE_APPEND) {
		/* we need to obtain the current offset */
		off_t offset;
		CHKiRet(getFileSize(pThis->pszCurrFName, &offset));
		pThis->iCurrOffs = offset;
	}

	DBGOPRINT((obj_t*) pThis, "opened file '%s' for %s as %d\n", pThis->pszCurrFName,
		  (pThis->tOperationsMode == STREAMMODE_READ) ? "READ" : "WRITE", pThis->fd);

finalize_it:
	RETiRet;
}


/* wait for the output writer thread to be done. This must be called before actions
 * that require data to be persisted. May be called in non-async mode and is a null
 * operation than. Must be called with the mutex locked.
 */
static inline void
strmWaitAsyncWriterDone(strm_t *pThis)
{
	BEGINfunc
	if(pThis->bAsyncWrite) {
		/* awake writer thread and make it write out everything */
		while(pThis->iCnt > 0) {
			pthread_cond_signal(&pThis->notEmpty);
			d_pthread_cond_wait(&pThis->isEmpty, &pThis->mut);
		}
	}
	ENDfunc
}


/* close a strm file
 * Note that the bDeleteOnClose flag is honored. If it is set, the file will be
 * deleted after close. This is in support for the qRead thread.
 * Note: it is valid to call this function when the physical file is closed. If so,
 * strmCloseFile() will still check if there is any unwritten data inside buffers
 * (this may be the case) and, if so, will open the file, write the data, and then
 * close it again (this is done via strmFlushInternal and friends).
 */
static rsRetVal strmCloseFile(strm_t *pThis)
{
	DEFiRet;

	ASSERT(pThis != NULL);
	DBGOPRINT((obj_t*) pThis, "file %d(%s) closing\n", pThis->fd,
		  (pThis->pszFName == NULL) ? "N/A" : (char*)pThis->pszFName);

	if(pThis->tOperationsMode != STREAMMODE_READ) {
		strmFlushInternal(pThis);
		if(pThis->bAsyncWrite) {
			strmWaitAsyncWriterDone(pThis);
		}
	}

	/* the file may already be closed (or never have opened), so guard
	 * against this. -- rgerhards, 2010-03-19
	 */
	if(pThis->fd != -1) {
		close(pThis->fd);
		pThis->fd = -1;
	}

	if(pThis->fdDir != -1) {
		/* close associated directory handle, if it is open */
		close(pThis->fdDir);
		pThis->fdDir = -1;
	}

	if(pThis->bDeleteOnClose) {
		if(unlink((char*) pThis->pszCurrFName) == -1) {
			char errStr[1024];
			int err = errno;
			rs_strerror_r(err, errStr, sizeof(errStr));
			DBGPRINTF("error %d unlinking '%s' - ignored: %s\n",
				   errno, pThis->pszCurrFName, errStr);
		}
	}

	pThis->iCurrOffs = 0;	/* we are back at begin of file */
	if(pThis->pszCurrFName != NULL) {
		free(pThis->pszCurrFName);	/* no longer needed in any case (just for open) */
		pThis->pszCurrFName = NULL;
	}

	RETiRet;
}


/* switch to next strm file
 * This method must only be called if we are in a multi-file mode!
 */
static rsRetVal
strmNextFile(strm_t *pThis)
{
	DEFiRet;

	ASSERT(pThis != NULL);
	ASSERT(pThis->iMaxFiles != 0);
	ASSERT(pThis->fd != -1);

	CHKiRet(strmCloseFile(pThis));

	/* we do modulo operation to ensure we obey the iMaxFile property. This will always
	 * result in a file number lower than iMaxFile, so it if wraps, the name is back to
	 * 0, which results in the first file being overwritten. Not desired for queues, so
	 * make sure their iMaxFiles is large enough. But it is well-desired for other
	 * use cases, e.g. a circular output log file. -- rgerhards, 2008-01-10
	 */
	pThis->iCurrFNum = (pThis->iCurrFNum + 1) % pThis->iMaxFiles;

finalize_it:
	RETiRet;
}


/* handle the eof case for monitored files.
 * If we are monitoring a file, someone may have rotated it. In this case, we
 * also need to close it and reopen it under the same name.
 * rgerhards, 2008-02-13
 * The previous code also did a check for file truncation, in which case the
 * file was considered rewritten. However, this potential border case turned
 * out to be a big trouble spot on busy systems. It caused massive message
 * duplication (I guess stat() can return a too-low number under some
 * circumstances). So starting as of now, we only check the inode number and
 * a file change is detected only if the inode changes. -- rgerhards, 2011-01-10
 */
static rsRetVal
strmHandleEOFMonitor(strm_t *pThis)
{
	DEFiRet;
	struct stat statOpen;
	struct stat statName;

	ISOBJ_TYPE_assert(pThis, strm);
	if(fstat(pThis->fd, &statOpen) == -1)
		ABORT_FINALIZE(RS_RET_IO_ERROR);
	if(stat((char*) pThis->pszCurrFName, &statName) == -1)
		ABORT_FINALIZE(RS_RET_IO_ERROR);
	DBGPRINTF("stream checking for file change on '%s', inode %u/%u",
	  pThis->pszCurrFName, (unsigned) statOpen.st_ino,
	  (unsigned) statName.st_ino);
	if(statOpen.st_ino == statName.st_ino) {
		ABORT_FINALIZE(RS_RET_EOF);
	} else {
		/* we had a file change! */
		DBGPRINTF("we had a file change on '%s'\n", pThis->pszCurrFName);
		CHKiRet(strmCloseFile(pThis));
		CHKiRet(strmOpenFile(pThis));
	}

finalize_it:
	RETiRet;
}


/* handle the EOF case of a stream
 * The EOF case is somewhat complicated, as the proper action depends on the
 * mode the stream is in. If there are multiple files (circular logs, most
 * important use case is queue files!), we need to close the current file and
 * try to open the next one.
 * rgerhards, 2008-02-13
 */
static rsRetVal
strmHandleEOF(strm_t *pThis)
{
	DEFiRet;

	ISOBJ_TYPE_assert(pThis, strm);
	switch(pThis->sType) {
		case STREAMTYPE_FILE_SINGLE:
		case STREAMTYPE_NAMED_PIPE:
			ABORT_FINALIZE(RS_RET_EOF);
			break;
		case STREAMTYPE_FILE_CIRCULAR:
			/* we have multiple files and need to switch to the next one */
			/* TODO: think about emulating EOF in this case (not yet needed) */
			DBGOPRINT((obj_t*) pThis, "file %d EOF\n", pThis->fd);
			CHKiRet(strmNextFile(pThis));
			break;
		case STREAMTYPE_FILE_MONITOR:
			CHKiRet(strmHandleEOFMonitor(pThis));
			break;
	}

finalize_it:
	RETiRet;
}

/* read the next buffer from disk
 * rgerhards, 2008-02-13
 */
static rsRetVal
strmReadBuf(strm_t *pThis)
{
	DEFiRet;
	int bRun;
	long iLenRead;

	ISOBJ_TYPE_assert(pThis, strm);
	/* We need to try read at least twice because we may run into EOF and need to switch files. */
	bRun = 1;
	while(bRun) {
		/* first check if we need to (re)open the file. We may have switched to a new one in
		 * circular mode or it may have been rewritten (rotated) if we monitor a file
		 * rgerhards, 2008-02-13
		 */
		CHKiRet(strmOpenFile(pThis));
		iLenRead = read(pThis->fd, pThis->pIOBuf, pThis->sIOBufSize);
		DBGOPRINT((obj_t*) pThis, "file %d read %ld bytes\n", pThis->fd, iLenRead);
		if(iLenRead == 0) {
			CHKiRet(strmHandleEOF(pThis));
		} else if(iLenRead < 0)
			ABORT_FINALIZE(RS_RET_IO_ERROR);
		else { /* good read */
			pThis->iBufPtrMax = iLenRead;
			bRun = 0;	/* exit loop */
		}
	}
	/* if we reach this point, we had a good read */
	pThis->iBufPtr = 0;

finalize_it:
	RETiRet;
}


/* logically "read" a character from a file. What actually happens is that
 * data is taken from the buffer. Only if the buffer is full, data is read 
 * directly from file. In that case, a read is performed blockwise.
 * rgerhards, 2008-01-07
 * NOTE: needs to be enhanced to support sticking with a strm entry (if not
 * deleted).
 */
static rsRetVal strmReadChar(strm_t *pThis, uchar *pC)
{
	DEFiRet;
	
	ASSERT(pThis != NULL);
	ASSERT(pC != NULL);

	/* DEV debug only: DBGOPRINT((obj_t*) pThis, "strmRead index %d, max %d\n", pThis->iBufPtr, pThis->iBufPtrMax); */
	if(pThis->iUngetC != -1) {	/* do we have an "unread" char that we need to provide? */
		*pC = pThis->iUngetC;
		++pThis->iCurrOffs; /* one more octet read */
		pThis->iUngetC = -1;
		ABORT_FINALIZE(RS_RET_OK);
	}
	
	/* do we need to obtain a new buffer? */
	if(pThis->iBufPtr >= pThis->iBufPtrMax) {
		CHKiRet(strmReadBuf(pThis));
	}

	/* if we reach this point, we have data available in the buffer */

	*pC = pThis->pIOBuf[pThis->iBufPtr++];
	++pThis->iCurrOffs; /* one more octet read */

finalize_it:
	RETiRet;
}


/* unget a single character just like ungetc(). As with that call, there is only a single
 * character buffering capability.
 * rgerhards, 2008-01-07
 */
static rsRetVal strmUnreadChar(strm_t *pThis, uchar c)
{
	ASSERT(pThis != NULL);


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