FreeCalypso > hg > fc-magnetite
annotate src/gpf3/ccd/bitfun.h @ 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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1 /* |
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2 +----------------------------------------------------------------------------- |
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3 | Project : |
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4 | Modul : bitfun.h |
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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 : Condat Coder Decoder |
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18 | Prototypes of the elementary bit manipulation functions |
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19 +----------------------------------------------------------------------------- |
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20 */ |
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21 |
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22 |
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23 #ifndef __BITFUN |
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24 #define __BITFUN |
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25 |
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26 |
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27 #ifndef __BITFUN_C__ |
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28 |
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29 EXTERN void bf_writePadBits (T_CCD_Globs *globs); |
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30 EXTERN void bf_writeVal (ULONG value, ULONG bSize, T_CCD_Globs *globs); |
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31 EXTERN ULONG bf_getBits (ULONG len, T_CCD_Globs *globs); |
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32 EXTERN void bf_writeBitStr_PER (USHORT len, T_CCD_Globs *globs); |
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33 EXTERN void bf_readBitStr_PER (USHORT len, T_CCD_Globs *globs); |
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34 EXTERN void bf_writeBits (ULONG len, T_CCD_Globs *globs); |
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35 EXTERN void bf_readBits (ULONG len, T_CCD_Globs *globs); |
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36 EXTERN void bf_writeBitChunk (ULONG len, T_CCD_Globs *globs); |
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37 EXTERN void bf_readBitChunk (ULONG len, T_CCD_Globs *globs); |
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38 EXTERN BOOL bf_readBit (T_CCD_Globs *globs); |
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39 EXTERN void bf_writeBit (BOOL Bit, T_CCD_Globs *globs); |
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40 EXTERN UBYTE bf_decodeByteNumber (const ULONG len, T_CCD_Globs *globs); |
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41 EXTERN ULONG bf_decodeShortNumber (const ULONG len, T_CCD_Globs *globs); |
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42 EXTERN ULONG bf_decodeLongNumber (UBYTE len, T_CCD_Globs *globs); |
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43 EXTERN void bf_codeShortNumber (UBYTE len, USHORT val, T_CCD_Globs *globs); |
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44 EXTERN void bf_codeByteNumber (UBYTE len, UBYTE val, T_CCD_Globs *globs); |
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45 EXTERN void bf_codeLongNumber (UBYTE len, ULONG val, T_CCD_Globs *globs); |
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46 EXTERN void bf_recodeShortNumber (USHORT pos, UBYTE len, USHORT val, T_CCD_Globs *globs); |
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47 EXTERN void bf_recodeByteNumber (USHORT pos, UBYTE len, UBYTE val, T_CCD_Globs *globs); |
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48 EXTERN void bf_recodeBit (USHORT pos, UBYTE Bit, T_CCD_Globs *globs); |
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49 EXTERN void bf_rShift8Bit (USHORT srcBitPos, USHORT bitLen, T_CCD_Globs *globs); |
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50 |
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51 #endif /* __BITFUN_C__ */ |
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52 |
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53 /* a Macro for incrementing the position in the bitbuffer */ |
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54 /* _bitpos, _bytepos and _byteoffs are recalculated */ |
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55 |
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56 #define bf_incBitpos(A, globs) globs->bitpos = (USHORT)(globs->bitpos+(A));\ |
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57 globs->bytepos = (USHORT)(globs->bitpos >> 3);\ |
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58 globs->byteoffs = (UBYTE)(globs->bitpos & 7) |
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59 #define bf_setBitpos(A, globs) globs->bitpos = (USHORT)(A);\ |
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60 globs->bytepos = (USHORT)(globs->bitpos >> 3);\ |
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61 globs->byteoffs = (UBYTE)(globs->bitpos & 7) |
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62 |
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63 /* |
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64 * end of bitstream if we can not read almost 4 bits |
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65 */ |
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66 #define bf_endOfBitstream(globs) (globs->bitpos >= globs->maxBitpos) |
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67 |
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68 #endif |