FreeCalypso > hg > fc-magnetite
annotate src/gpf3/ccd/ccddata_ccdptab.c @ 516:1ed9de6c90bd
src/g23m-gsm/sms/sms_for.c: bogus malloc removed
The new error handling code that was not present in TCS211 blob version
contains a malloc call that is bogus for 3 reasons:
1) The memory allocation in question is not needed in the first place;
2) libc malloc is used instead of one of the firmware's proper ways;
3) The memory allocation is made inside a function and then never freed,
i.e., a memory leak.
This bug was caught in gcc-built FreeCalypso fw projects (Citrine
and Selenite) because our gcc environment does not allow any use of
libc malloc (any reference to malloc produces a link failure),
but this code from TCS3.2 is wrong even for Magnetite: if this code
path is executed repeatedly over a long time, the many small allocations
made by this malloc call without a subsequent free will eventually
exhaust the malloc heap provided by the TMS470 environment, malloc will
start returning NULL, and the bogus code will treat it as an error.
Because the memory allocation in question is not needed at all,
the fix entails simply removing it.
| author | Mychaela Falconia <falcon@freecalypso.org> |
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| date | Sun, 22 Jul 2018 06:04:49 +0000 |
| parents | c41a534f33c6 |
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| rev | line source |
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1 /* |
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2 +----------------------------------------------------------------------------- |
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3 | Project : |
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4 | Modul : ccddata_ccdptab.c |
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5 +----------------------------------------------------------------------------- |
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6 | Copyright 2002 Texas Instruments Berlin, AG |
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7 | All rights reserved. |
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8 | |
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9 | This file is confidential and a trade secret of Texas |
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10 | Instruments Berlin, AG |
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11 | The receipt of or possession of this file does not convey |
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12 | any rights to reproduce or disclose its contents or to |
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13 | manufacture, use, or sell anything it may describe, in |
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14 | whole, or in part, without the specific written consent of |
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15 | Texas Instruments Berlin, AG. |
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16 +----------------------------------------------------------------------------- |
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17 | Purpose : Ccddata abstraction for use in lib/dll. The four tables |
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18 | pvar, pcomp, pelem, and pmtx, genereraed by ccdgen |
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19 | (in ccdptab.cdg) are supplied. In addition, corresponding |
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20 | functions deliver specified elements of the tables. For |
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21 | pmtx the function must be used, because this three-dimesional |
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22 | array cannot be declared as extern without knowing the constants |
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23 | at compile time. |
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24 +----------------------------------------------------------------------------- |
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25 */ |
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26 |
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27 #include "typedefs.h" |
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28 #include "pconst.cdg" |
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29 #include "ccdtable.h" |
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30 |
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31 static const T_CCD_VarTabEntry ccddata_pvar [] = |
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32 { |
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33 #include "pvar.cdg" |
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34 }; |
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35 |
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36 static const T_CCD_CompTabEntry ccddata_pcomp [] = |
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37 { |
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38 #include "pcomp.cdg" |
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39 }; |
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40 |
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41 static const T_CCD_ElemTabEntry ccddata_pelem [] = |
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42 { |
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43 #include "pelem.cdg" |
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44 }; |
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45 |
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46 static const USHORT ccddata_pmtx [MAX_PMTX_SIZE] = |
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47 { |
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48 #include "pmtxval.cdg" |
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49 }; |
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50 |
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51 const T_CCD_MTXIDX ccddata_pmtx_idx [] = |
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52 { |
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53 #include "pmtxidx.cdg" |
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54 }; |
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55 |
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56 const T_CCD_VarTabEntry* ccddata_get_pvar (USHORT idx) |
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57 { |
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58 return &ccddata_pvar[idx]; |
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59 } |
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60 |
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61 const T_CCD_CompTabEntry* ccddata_get_pcomp (USHORT idx) |
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62 { |
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63 return &ccddata_pcomp[idx]; |
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64 } |
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65 |
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66 const T_CCD_ElemTabEntry* ccddata_get_pelem (USHORT idx) |
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67 { |
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68 return &ccddata_pelem[idx]; |
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69 } |
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70 |
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71 USHORT ccddata_get_pmtx (USHORT sap, USHORT primid, USHORT index) |
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72 { |
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73 if ((sap > MAX_SAP_NUM) || (primid >= ccddata_pmtx_idx[sap].numitems)) |
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74 return NO_REF; |
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75 return ccddata_pmtx[2*(ccddata_pmtx_idx[sap].idx + primid) + index]; |
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76 } |
