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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 e7a67accfad9
children
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;********************************************************************************
;*** File           : tra.pdf
;*** Creation       : Wed Mar 11 09:58:53 CST 2009
;*** XSLT Processor : Apache Software Foundation / http://xml.apache.org/xalan-j / supports XSLT-Ver: 1
;*** Copyright      : (c) Texas Instruments AG, Berlin Germany 2002
;********************************************************************************
;*** Document Type  : Service Access Point Specification
;*** Document Name  : tra
;*** Document No.   : 8411.106.98.101
;*** Document Date  : 2002-06-10
;*** Document Status: BEING_PROCESSED
;*** Document Author: TVO
;********************************************************************************



PRAGMA 	SRC_FILE_TIME 	"Thu Nov 29 09:55:46 2007"
PRAGMA 	LAST_MODIFIED 	"2002-06-10"
PRAGMA 	ID_AND_VERSION 	"8411.106.98.101"






VALTAB 	VAL_entity_name
VAL 	6 	TRA_ENTITY_NAME_LEN 	"Max name length"

VALTAB 	VAL_ack_flg
VAL 	0 	TRA_ACK 	"acknowledged"
VAL 	1 	TRA_NAK 	"not acknowledged"

VALTAB 	VAL_dti_direction
VAL 	0 	TRA_DTI_NORMAL 	"DTI used normally"
VAL 	1 	TRA_DTI_INVERTED 	"DTI is inverted"

VALTAB 	VAL_dti_conn
VAL 	0 	TRA_CONNECT_DTI 	"Connect DTI to TRA"
VAL 	1 	TRA_DISCONNECT_DTI 	"Connect DTI to upper layer"




VAR 	entity_name 	"name of an neighbour entity" 	B

VAL 	@p_tra - VAL_entity_name@ 	

VAR 	ack_flg 	"acknowledge flag" 	B

VAL 	@p_tra - VAL_ack_flg@ 	

VAR 	link_id 	"link identifier" 	L


VAR 	dti_direction 	"DTI direction" 	B

VAL 	@p_tra - VAL_dti_direction@ 	

VAR 	dti_conn 	"DTI connect" 	B

VAL 	@p_tra - VAL_dti_conn@ 	







; TRA_ACTIVATE_REQ 	0x80000019
; TRA_ACTIVATE_CNF 	0x80004019
; TRA_DEACTIVATE_REQ 	0x80010019
; TRA_DEACTIVATE_CNF 	0x80014019
; TRA_DTI_REQ 	0x80020019
; TRA_DTI_CNF 	0x80024019
; TRA_DTI_IND 	0x80034019



PRIM 	TRA_ACTIVATE_REQ 	0x80000019
{
}






PRIM 	TRA_ACTIVATE_CNF 	0x80004019
{
 	ack_flg 	 ; acknowledge flag
}






PRIM 	TRA_DEACTIVATE_REQ 	0x80010019
{
}






PRIM 	TRA_DEACTIVATE_CNF 	0x80014019
{
}






PRIM 	TRA_DTI_REQ 	0x80020019
{
 	dti_conn 	 ; DTI connect
 	link_id 	 ; Link identifier of DTI
 	entity_name 	[TRA_ENTITY_NAME_LEN] 	 ; Communication entity name
 	dti_direction 	 ; DTI direction
}






PRIM 	TRA_DTI_CNF 	0x80024019
{
 	dti_conn 	 ; DTI connect
 	link_id 	 ; Link identifier
}






PRIM 	TRA_DTI_IND 	0x80034019
{
 	link_id 	 ; link identifier
}