annotate src/gpf3/ccd/gsm5_v.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>
date Sun, 22 Jul 2018 06:04:49 +0000
parents c41a534f33c6
children
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1 /*
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2 +-----------------------------------------------------------------------------
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3 | Project :
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4 | Modul : gsm5_v.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 : Definition of encoding and decoding functions for GSM5_V elements
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18 +-----------------------------------------------------------------------------
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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 * standard definitions like GLOBAL, UCHAR, ERROR etc.
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24 */
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25 #include "typedefs.h"
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26 #include "header.h"
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27
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28 /*
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29 * Prototypes of ccd (USE_DRIVER EQ undef) for prototypes only
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30 * look at ccdapi.h
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31 */
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32 #undef USE_DRIVER
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33 #include "ccdapi.h"
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34
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35 /*
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36 * Types and functions for bit access and manipulation
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37 */
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38 #include "ccd_globs.h"
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39 #include "bitfun.h"
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40
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41 /*
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42 * Prototypes of ccd internal functions
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43 */
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44 #include "ccd.h"
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45
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46 /*
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47 * Declaration of coder/decoder tables
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48 */
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49 #include "ccdtable.h"
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50 #include "ccddata.h"
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51
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52 #ifndef RUN_INT_RAM
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53 /*
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54 +--------------------------------------------------------------------+
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55 | PROJECT : CCD (6144) MODULE : CDC_GSM |
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56 | STATE : code ROUTINE : cdc_gsm5v_decode |
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57 +--------------------------------------------------------------------+
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58
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59 PURPOSE : Decoding of the GSM Type 5V element. This element
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60 consists of the not decoded bits of the bitstream.
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61 In the target C-structure this element is a bitbuffer
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62 (T_xxx_BUF) in wich the bitstream content are written.
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63
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64 */
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65
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66 SHORT cdc_gsm5v_decode (const ULONG c_ref, const ULONG e_ref, T_CCD_Globs *globs)
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67 {
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68 #ifdef DEBUG_CCD
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69 #ifndef CCD_SYMBOLS
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70 TRACE_CCD (globs, "cdc_gsm5v_decode()");
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71 #else
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72 TRACE_CCD (globs, "cdc_gsm5v_decode() %s", ccddata_get_alias((USHORT) e_ref, 1));
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73 #endif
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74 #endif
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75
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76 if (globs->bitpos >= globs->buflen)
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77 {
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78 return 1;
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79 }
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80 else
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81 {
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82 ULONG cix_ref;
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83
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84 cix_ref = melem[e_ref].calcIdxRef;
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85
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86 /*
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87 * if this element is conditional, check the condition
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88 */
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89 if (calcidx[cix_ref].numCondCalcs NEQ 0
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90 AND ! ccd_conditionOK (e_ref, globs))
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91 {
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92 return 1;
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93 }
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94 else
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95 {
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96 ULONG bits_to_read;
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97 ULONG num_prolog_steps, prolog_step_ref;
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98
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99 num_prolog_steps = calcidx[cix_ref].numPrologSteps;
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100 prolog_step_ref = calcidx[cix_ref].prologStepRef;
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101
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102 /* If there is a prologue given for this element, process it. */
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103 if (num_prolog_steps)
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104 {
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105 ccd_performOperations (num_prolog_steps, prolog_step_ref, globs);
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106 }
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107
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108 /*
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109 * Setup the offset into the C-structure for this element
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110 */
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111 globs->pstructOffs = melem[e_ref].structOffs;
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112
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113 if (melem[e_ref].optional)
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114 {
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115 /*
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116 * for optional elements set the valid-flag in the C-struct.
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117 */
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118 globs->pstruct[globs->pstructOffs++] = TRUE;
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119 }
c41a534f33c6 src/gpf3: preened GPF goo from TCS3.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
120
c41a534f33c6 src/gpf3: preened GPF goo from TCS3.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
121 if (globs->maxBitpos < globs->buflen - 16*globs->numEOCPending)
c41a534f33c6 src/gpf3: preened GPF goo from TCS3.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
122 {
c41a534f33c6 src/gpf3: preened GPF goo from TCS3.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
123 ccd_recordFault (globs, ERR_LEN_MISMATCH, CONTINUE, (USHORT) e_ref,
c41a534f33c6 src/gpf3: preened GPF goo from TCS3.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
124 globs->pstruct + globs->pstructOffs);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
125 }
c41a534f33c6 src/gpf3: preened GPF goo from TCS3.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
126
c41a534f33c6 src/gpf3: preened GPF goo from TCS3.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
127 bits_to_read = (ULONG)(globs->buflen - globs->bitpos - 16*globs->numEOCPending);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
128 bf_readBitChunk (bits_to_read, globs);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
129 }
c41a534f33c6 src/gpf3: preened GPF goo from TCS3.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
130 }
c41a534f33c6 src/gpf3: preened GPF goo from TCS3.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
131
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
132 return 1;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
133 }
c41a534f33c6 src/gpf3: preened GPF goo from TCS3.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
134 #endif /* !RUN_INT_RAM */
c41a534f33c6 src/gpf3: preened GPF goo from TCS3.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
135
c41a534f33c6 src/gpf3: preened GPF goo from TCS3.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
136 #ifndef RUN_INT_RAM
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
137 /*
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
138 +--------------------------------------------------------------------+
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
139 | PROJECT : CCD (6144) MODULE : CDC_GSM |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
140 | STATE : code ROUTINE : cdc_gsm5v_encode |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
141 +--------------------------------------------------------------------+
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
142
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
143 PURPOSE : Encoding of the GSM Type 5V element. This element
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
144 consists of the not decoded bits of the bitstream.
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
145 In the target C-structure this element is a bitbuffer
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
146 (T_xxx_BUF) from wich the bitstream content is read.
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
147
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
148 */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
149
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
150 SHORT cdc_gsm5v_encode (const ULONG c_ref, const ULONG e_ref, T_CCD_Globs *globs)
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
151 {
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
152 ULONG cix_ref, num_prolog_steps, prolog_step_ref;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
153
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
154 #ifdef DEBUG_CCD
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
155 #ifndef CCD_SYMBOLS
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
156 TRACE_CCD (globs, "cdc_gsm5v_encode()");
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
157 #else
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
158 TRACE_CCD (globs, "cdc_gsm5v_encode() %s", ccddata_get_alias((USHORT) e_ref, 1));
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
159 #endif
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
160 #endif
c41a534f33c6 src/gpf3: preened GPF goo from TCS3.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
161
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
162 cix_ref = melem[e_ref].calcIdxRef;
c41a534f33c6 src/gpf3: preened GPF goo from TCS3.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
163 num_prolog_steps = calcidx[cix_ref].numPrologSteps;
c41a534f33c6 src/gpf3: preened GPF goo from TCS3.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
164 prolog_step_ref = calcidx[cix_ref].prologStepRef;
c41a534f33c6 src/gpf3: preened GPF goo from TCS3.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
165
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
166 /*
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
167 * if this element is conditional, check the condition
c41a534f33c6 src/gpf3: preened GPF goo from TCS3.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
168 */
c41a534f33c6 src/gpf3: preened GPF goo from TCS3.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
169 if (calcidx[cix_ref].numCondCalcs NEQ 0
c41a534f33c6 src/gpf3: preened GPF goo from TCS3.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
170 AND ! ccd_conditionOK (e_ref, globs))
c41a534f33c6 src/gpf3: preened GPF goo from TCS3.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
171 return 1;
c41a534f33c6 src/gpf3: preened GPF goo from TCS3.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
172
c41a534f33c6 src/gpf3: preened GPF goo from TCS3.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
173 /*
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
174 * if this element have a defined Prolog
c41a534f33c6 src/gpf3: preened GPF goo from TCS3.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
175 * we have to process it before decoding the bitstream
c41a534f33c6 src/gpf3: preened GPF goo from TCS3.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
176 */
c41a534f33c6 src/gpf3: preened GPF goo from TCS3.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
177 if (num_prolog_steps)
c41a534f33c6 src/gpf3: preened GPF goo from TCS3.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
178 {
c41a534f33c6 src/gpf3: preened GPF goo from TCS3.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
179 ccd_performOperations (num_prolog_steps, prolog_step_ref, globs);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
180 }
c41a534f33c6 src/gpf3: preened GPF goo from TCS3.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
181
c41a534f33c6 src/gpf3: preened GPF goo from TCS3.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
182 /*
c41a534f33c6 src/gpf3: preened GPF goo from TCS3.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
183 * Setup the offset into the C-structure for this element
c41a534f33c6 src/gpf3: preened GPF goo from TCS3.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
184 */
c41a534f33c6 src/gpf3: preened GPF goo from TCS3.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
185 globs->pstructOffs = melem[e_ref].structOffs;
c41a534f33c6 src/gpf3: preened GPF goo from TCS3.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
186
c41a534f33c6 src/gpf3: preened GPF goo from TCS3.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
187 if (melem[e_ref].optional)
c41a534f33c6 src/gpf3: preened GPF goo from TCS3.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
188 {
c41a534f33c6 src/gpf3: preened GPF goo from TCS3.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
189 /*
c41a534f33c6 src/gpf3: preened GPF goo from TCS3.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
190 * for optional elements check the valid-flag in the C-struct.
c41a534f33c6 src/gpf3: preened GPF goo from TCS3.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
191 * Spare elements does not have a corresponding valid flag.
c41a534f33c6 src/gpf3: preened GPF goo from TCS3.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
192 */
c41a534f33c6 src/gpf3: preened GPF goo from TCS3.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
193 if (globs->pstruct[globs->pstructOffs++] == FALSE)
c41a534f33c6 src/gpf3: preened GPF goo from TCS3.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
194 {
c41a534f33c6 src/gpf3: preened GPF goo from TCS3.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
195 return 1;
c41a534f33c6 src/gpf3: preened GPF goo from TCS3.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
196 }
c41a534f33c6 src/gpf3: preened GPF goo from TCS3.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
197 #ifdef DEBUG_CCD
c41a534f33c6 src/gpf3: preened GPF goo from TCS3.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
198 else if (globs->pstruct [melem[e_ref].structOffs] != TRUE)
c41a534f33c6 src/gpf3: preened GPF goo from TCS3.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
199 {
c41a534f33c6 src/gpf3: preened GPF goo from TCS3.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
200 TRACE_CCD (globs, "Ambiguous value for valid flag!\n...assumed 1 for ccdID=%d",
c41a534f33c6 src/gpf3: preened GPF goo from TCS3.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
201 e_ref);
c41a534f33c6 src/gpf3: preened GPF goo from TCS3.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
202 }
c41a534f33c6 src/gpf3: preened GPF goo from TCS3.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
203 #endif
c41a534f33c6 src/gpf3: preened GPF goo from TCS3.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
204 }
c41a534f33c6 src/gpf3: preened GPF goo from TCS3.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
205
c41a534f33c6 src/gpf3: preened GPF goo from TCS3.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
206 bf_writeBitChunk (mvar[melem[e_ref].elemRef].bSize, globs);
c41a534f33c6 src/gpf3: preened GPF goo from TCS3.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
207
c41a534f33c6 src/gpf3: preened GPF goo from TCS3.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
208 return 1;
c41a534f33c6 src/gpf3: preened GPF goo from TCS3.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
209 }
c41a534f33c6 src/gpf3: preened GPF goo from TCS3.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
210 #endif /* !RUN_INT_RAM */