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view src/g23m-aci/aci/dcm_f.c @ 516:1ed9de6c90bd

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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 53929b40109c
children
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/*
+-----------------------------------------------------------------------------
|  Project :  
|  Modul   :  ACI - DCM
+-----------------------------------------------------------------------------
|  Copyright 2002 Texas Instruments Berlin, AG
|                 All rights reserved.
|
|                 This file is confidential and a trade secret of Texas
|                 Instruments Berlin, AG
|                 The receipt of or possession of this file does not convey
|                 any rights to reproduce or disclose its contents or to
|                 manufacture, use, or sell anything it may describe, in
|                 whole, or in part, without the specific written consent of
|                 Texas Instruments Berlin, AG.
+-----------------------------------------------------------------------------
|  Description :  Contains functionality to maintain UDP/IP and TCP/IP stacks
|                 in parallel
+-----------------------------------------------------------------------------
*/

#include "dcm_f.h"
#include "aci_all.h"


/* This flag is set if an application uses the GPF TCP/IP functionality,
   in case using the old UDP/IP stack this flag is set to false (default) */
static BOOL gpfTcpIpCall = FALSE;

/******************************************************************************/
BOOL is_gpf_tcpip_call()
{
  /* check to ensure that everything is configured well*/
#if !defined(FF_GPF_TCPIP)
  ACI_ASSERT(gpfTcpIpCall EQ FALSE);
#endif
  
  return gpfTcpIpCall;
}


/******************************************************************************/
void set_gpf_tcpip_call()
{
#if !defined(FF_GPF_TCPIP)
    ACI_ASSERT(FALSE);
#endif
  ACI_ASSERT(gpfTcpIpCall NEQ TRUE);
  gpfTcpIpCall = TRUE;
}


/******************************************************************************/
void reset_gpf_tcpip_call()
{
#if !defined(FF_GPF_TCPIP)
    ACI_ASSERT(FALSE);
#endif
  /*ACI_ASSERT(gpfTcpIpCall EQ TRUE);*/
  gpfTcpIpCall = FALSE;
}