FreeCalypso > hg > fc-magnetite
view src/cs/services/tty/tty_api.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> |
---|---|
date | Sun, 22 Jul 2018 06:04:49 +0000 |
parents | 945cf7f506b2 |
children |
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/** * @file tty_api.h * * API Definition for TTY SWE. * * @author Frederic Turgis (f-turgis@ti.com) & Gerard Cauvy (g-cauvy@ti.com) * @version 0.1 */ /* * History: * * Date Modification * ------------------------------------ * 01/27/2003 Create * * (C) Copyright 2003 by Texas Instruments Incorporated, All Rights Reserved */ #ifndef __TTY_API_H_ #define __TTY_API_H_ #include "rvm/rvm_gen.h" /* Generic RVM types and functions. */ /* TTY entity (Background Task) is highly linked to the Audio entity. */ #include "audio/audio_api.h" #ifdef __cplusplus extern "C" { #endif typedef struct { UINT8 Mode; UINT16 ThresholdRead; UINT16 ThreshHoldWrite; } T_AUDIO_TTY_CONFIG_PARAMETER; #define TTY_STOP (0) #define TTY_EXT_START (1) T_AUDIO_RET audio_tty_set_config (T_AUDIO_TTY_CONFIG_PARAMETER *parameter, T_RV_RETURN *return_path); #define AUDIO_TTY_STATUS_MSG (0x00F2 | AUDIO_EVENT_EXTERN | AUDIO_EVENTS_MASK) typedef struct { T_RV_HDR os_hdr; INT8 status; } T_AUDIO_TTY_STATUS; #ifdef __cplusplus } #endif #endif /*__TTY_API_H_*/