diff options
Diffstat (limited to 'misc/pascal/insn16/prun/pload.c')
-rw-r--r-- | misc/pascal/insn16/prun/pload.c | 351 |
1 files changed, 176 insertions, 175 deletions
diff --git a/misc/pascal/insn16/prun/pload.c b/misc/pascal/insn16/prun/pload.c index f09c72063..8d5576019 100644 --- a/misc/pascal/insn16/prun/pload.c +++ b/misc/pascal/insn16/prun/pload.c @@ -1,175 +1,176 @@ -/****************************************************************************
- * pload.c
- *
- * Copyright (C) 2008 Gregory Nutt. All rights reserved.
- * Author: Gregory Nutt <spudmonkey@racsa.co.cr>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- * 3. Neither the name NuttX nor the names of its contributors may be
- * used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ****************************************************************************/
-
-/****************************************************************************
- * Included Files
- ****************************************************************************/
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <errno.h>
-
-#include "keywords.h"
-#include "pedefs.h"
-#include "pofflib.h"
-#include "perr.h"
-#include "pexec.h"
-
-/****************************************************************************
- * Definitions
- ****************************************************************************/
-
-/****************************************************************************
- * Private Type Definitions
- ****************************************************************************/
-
-/****************************************************************************
- * Private Constant Data
- ****************************************************************************/
-
-/****************************************************************************
- * Private Data
- ****************************************************************************/
-
-/****************************************************************************
- * Private Function Prototypes
- ****************************************************************************/
-
-/****************************************************************************
- * Global Variables
- ****************************************************************************/
-
-/****************************************************************************
- * Public Functions
- ****************************************************************************/
-
-FAR struct pexec_s *pload(const char *filename, addr_t varsize, addr_t strsize)
-{
- struct pexec_attr_s attr;
- struct pexec_s *st;
- poffHandle_t phandle;
- FILE *exe;
- uint16 err;
- ubyte ftype;
- ubyte farch;
-
- /* Create a handle to contain the executable data */
-
- phandle = poffCreateHandle();
- if (phandle == NULL) fatal(eNOMEMORY);
-
- /* Open the executable file */
-
- if (!(exe = fopen(filename, "rb")))
- {
- dbg("ERROR: Error opening '%s': %d\n", filename, errno);
- goto errout_with_handle;
- }
-
- /* Load the POFF file into memory */
-
- err = poffReadFile(phandle, exe);
- if (err != eNOERROR)
- {
- dbg("ERROR: Could not read %s: %d\n", filename, err);
- goto errout_with_file;
- }
-
- /* Verify that the file is a pascal executable */
-
- ftype = poffGetFileType(phandle);
- if (ftype != FHT_EXEC)
- {
- dbg("ERROR: File is not a pascal executable: %d\n", ftype);
- goto errout_with_file;
- }
-
- farch = poffGetArchitecture(phandle);
- if (farch != FHA_PCODE_INSN16)
- {
- dbg("ERROR: File is not 16-bit pcode: %d\n", farch);
- goto errout_with_file;
- }
-
- /* Initialize the attribute structure */
-
- attr.varsize = varsize;
- attr.strsize = strsize;
-
- /* Extract the program entry point from the pascal executable */
-
- attr.entry = poffGetEntryPoint(phandle);
-
- /* Close the POFF file */
-
- (void)fclose(exe);
-
- /* Extract the program data from the POFF image */
-
- attr.maxpc = poffExtractProgramData(phandle, &attr.ispace);
-
- /* Extract the read-only data from the POFF image */
-
- attr.rosize = poffExtractRoData(phandle, &attr.rodata);
-
- /* Destroy the POFF image */
-
- poffDestroyHandle(phandle);
-
- /* Initialize the p-code interpreter */
-
- st = pexec_init(&attr);
- if (!st && attr.ispace)
- {
- /* Initialization failed, discard the allocated I-Space */
-
- free(st->ispace);
- }
-
- /* Discard the allocated RO data in any event */
-
- if (attr.rodata)
- {
- free(attr.rodata);
- }
- return st;
-
- errout_with_file:
- (void)fclose(exe);
-
- errout_with_handle:
- poffDestroyHandle(phandle);
- return NULL;
-}
+/**************************************************************************** + * pload.c + * + * Copyright (C) 2008-2009 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <spudmonkey@racsa.co.cr> + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include <stdint.h> +#include <stdio.h> +#include <stdlib.h> +#include <errno.h> + +#include "keywords.h" +#include "pedefs.h" +#include "pofflib.h" +#include "perr.h" +#include "pexec.h" + +/**************************************************************************** + * Pre-processor Definitions + ****************************************************************************/ + +/**************************************************************************** + * Private Type Definitions + ****************************************************************************/ + +/**************************************************************************** + * Private Constant Data + ****************************************************************************/ + +/**************************************************************************** + * Private Data + ****************************************************************************/ + +/**************************************************************************** + * Private Function Prototypes + ****************************************************************************/ + +/**************************************************************************** + * Global Variables + ****************************************************************************/ + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +FAR struct pexec_s *pload(const char *filename, addr_t varsize, addr_t strsize) +{ + struct pexec_attr_s attr; + struct pexec_s *st; + poffHandle_t phandle; + FILE *exe; + uint16_t err; + uint8_t ftype; + uint8_t farch; + + /* Create a handle to contain the executable data */ + + phandle = poffCreateHandle(); + if (phandle == NULL) fatal(eNOMEMORY); + + /* Open the executable file */ + + if (!(exe = fopen(filename, "rb"))) + { + dbg("ERROR: Error opening '%s': %d\n", filename, errno); + goto errout_with_handle; + } + + /* Load the POFF file into memory */ + + err = poffReadFile(phandle, exe); + if (err != eNOERROR) + { + dbg("ERROR: Could not read %s: %d\n", filename, err); + goto errout_with_file; + } + + /* Verify that the file is a pascal executable */ + + ftype = poffGetFileType(phandle); + if (ftype != FHT_EXEC) + { + dbg("ERROR: File is not a pascal executable: %d\n", ftype); + goto errout_with_file; + } + + farch = poffGetArchitecture(phandle); + if (farch != FHA_PCODE_INSN16) + { + dbg("ERROR: File is not 16-bit pcode: %d\n", farch); + goto errout_with_file; + } + + /* Initialize the attribute structure */ + + attr.varsize = varsize; + attr.strsize = strsize; + + /* Extract the program entry point from the pascal executable */ + + attr.entry = poffGetEntryPoint(phandle); + + /* Close the POFF file */ + + (void)fclose(exe); + + /* Extract the program data from the POFF image */ + + attr.maxpc = poffExtractProgramData(phandle, &attr.ispace); + + /* Extract the read-only data from the POFF image */ + + attr.rosize = poffExtractRoData(phandle, &attr.rodata); + + /* Destroy the POFF image */ + + poffDestroyHandle(phandle); + + /* Initialize the p-code interpreter */ + + st = pexec_init(&attr); + if (!st && attr.ispace) + { + /* Initialization failed, discard the allocated I-Space */ + + free(st->ispace); + } + + /* Discard the allocated RO data in any event */ + + if (attr.rodata) + { + free(attr.rodata); + } + return st; + + errout_with_file: + (void)fclose(exe); + + errout_with_handle: + poffDestroyHandle(phandle); + return NULL; +} |