FreeCalypso > hg > freecalypso-sw

annotate target-utils/libtiffs/basicfind.c @ 923:10b4bed10192

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gsm-fw/L1: fix for the DSP patch corruption bug The L1 code we got from the LoCosto fw contains a feature for DSP CPU load measurement. This feature is a LoCosto-ism, i.e., not applicable to earlier DBB chips (Calypso) with their respective earlier DSP ROMs. Most of the code dealing with that feature is conditionalized as #if (DSP >= 38), but one spot was missed, and the MCU code was writing into an API word dealing with this feature. In TCS211 this DSP API word happens to be used by the DSP code patch, hence that write was corrupting the patched DSP code.
author Mychaela Falconia <falcon@ivan.Harhan.ORG>
date Mon, 19 Oct 2015 17:13:56 +0000
parents 2900fe603f8a
children
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1 #include <sys/types.h>
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2 #include "types.h"
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3 #include "struct.h"
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4 #include "globals.h"
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5 #include "macros.h"
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6
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7 extern char *index();
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8
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9 static
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10 find_named_child(start, seekname)
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11 char *seekname;
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12 {
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13 int ino;
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14 struct inode *irec;
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15
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16 for (ino = start; ino != 0xFFFF; ino = irec->sibling) {
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17 irec = mpffs_active_index + ino;
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18 if (!irec->type)
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19 continue;
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20 if (!strcmp(inode_to_dataptr(irec), seekname))
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21 return(ino);
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22 }
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23 return(0);
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24 }
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25
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26 mpffs_pathname_to_inode(pathname)
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27 char *pathname;
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28 {
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29 int ino, stat;
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30 struct inode *irec;
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31 char *cur, *next;
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32
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33 stat = mpffs_init();
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34 if (stat < 0)
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35 return(stat);
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36 cur = pathname;
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37 if (*cur == '/')
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38 cur++;
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39 for (ino = mpffs_root_ino; cur; cur = next) {
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40 if (!*cur)
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41 break;
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42 next = index(cur, '/');
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43 if (next == cur) {
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44 printf("malformed pathname: multiple adjacent slashes\n");
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45 return(-1);
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46 }
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47 if (next)
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48 *next++ = '\0';
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49 irec = mpffs_active_index + ino;
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50 if (irec->type != OBJTYPE_DIR) {
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51 printf("Error: non-terminal non-directory\n");
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52 if (next)
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53 next[-1] = '/';
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54 return(-1);
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55 }
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56 ino = find_named_child(irec->descend, cur);
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57 if (next)
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58 next[-1] = '/';
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59 if (!ino) {
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60 printf("Error: pathname component not found\n");
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61 return(-1);
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62 }
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63 }
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64 return(ino);
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65 }