FreeCalypso > hg > freecalypso-tools

annotate loadtools/secondprog.c @ 416:30f6d1c32c6f

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doc/Flash-boot-defect article removed (no longer relevant) This article is no longer relevant because the issue in question only affected one (1) defective FCDEV3B board which was not and never will be sold.
author Mychaela Falconia <falcon@freecalypso.org>
date Fri, 26 Oct 2018 07:11:08 +0000
parents 064d4eedb3a6
children
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204
064d4eedb3a6 loadtools: second program invokation support added to fc-iram like in fc-xram
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1 /*
064d4eedb3a6 loadtools: second program invokation support added to fc-iram like in fc-xram
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2 * This module contains the code for passing the serial channel to a
064d4eedb3a6 loadtools: second program invokation support added to fc-iram like in fc-xram
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3 * second program, used by fc-iram and fc-xram.
064d4eedb3a6 loadtools: second program invokation support added to fc-iram like in fc-xram
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4 */
064d4eedb3a6 loadtools: second program invokation support added to fc-iram like in fc-xram
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5
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6 #include <stdio.h>
064d4eedb3a6 loadtools: second program invokation support added to fc-iram like in fc-xram
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7 #include <stdlib.h>
064d4eedb3a6 loadtools: second program invokation support added to fc-iram like in fc-xram
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8 #include <unistd.h>
064d4eedb3a6 loadtools: second program invokation support added to fc-iram like in fc-xram
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9
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10 extern char **passon_argv;
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11 extern int passon_argc;
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12
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13 exec_2nd_prog()
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14 {
064d4eedb3a6 loadtools: second program invokation support added to fc-iram like in fc-xram
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15 char **execp_argv;
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16 char **sp, **dp;
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17 extern int target_fd;
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18 char desc_arg[16];
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19
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20 sprintf(desc_arg, "-d%d", target_fd);
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21 execp_argv = (char **) malloc(sizeof(char *) * (passon_argc + 2));
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22 if (!execp_argv) {
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23 perror("malloc argv for execvp");
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24 exit(1);
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25 }
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26 sp = passon_argv;
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27 dp = execp_argv;
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28 *dp++ = *sp++;
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29 *dp++ = desc_arg;
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30 while (*sp)
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31 *dp++ = *sp++;
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32 *dp = NULL;
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33 execvp(execp_argv[0], execp_argv);
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34 fprintf(stderr, "Unable to execvp %s\n", passon_argv[0]);
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35 exit(1);
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36 }