FreeCalypso > hg > fc-magnetite
view cdg211/cdginc/p_mmsms.val @ 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 | 56abf6cf8a0b |
children |
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/* +--------------------------------------------------------------------------+ | PROJECT : PROTOCOL STACK | | FILE : p_mmsms.val | | SOURCE : "__out__\g23m_dfile\prim\mmsms.pdf" | | LastModified : "2002-07-19" | | IdAndVersion : "6147.106.97.102" | | SrcFileTime : "Mon Nov 24 15:51:10 2003" | | Generated by CCDGEN_2.5.5 on Fri Jun 08 13:59:15 2007 | | !!DO NOT MODIFY!!DO NOT MODIFY!!DO NOT MODIFY!! | +--------------------------------------------------------------------------+ */ /* PRAGMAS * PREFIX : NONE * COMPATIBILITY_DEFINES : NO (require PREFIX) * ALWAYS_ENUM_IN_VAL_FILE: NO * ENABLE_GROUP: NO * CAPITALIZE_TYPENAME: NO */ #ifndef P_MMSMS_VAL #define P_MMSMS_VAL #define CDG_ENTER__P_MMSMS_VAL #define CDG_ENTER__FILENAME _P_MMSMS_VAL #define CDG_ENTER__P_MMSMS_VAL__FILE_TYPE CDGINC #define CDG_ENTER__P_MMSMS_VAL__LAST_MODIFIED _2002_07_19 #define CDG_ENTER__P_MMSMS_VAL__ID_AND_VERSION _6147_106_97_102 #define CDG_ENTER__P_MMSMS_VAL__SRC_FILE_TIME _Mon_Nov_24_15_51_10_2003 #include "CDG_ENTER.h" #undef CDG_ENTER__P_MMSMS_VAL #undef CDG_ENTER__FILENAME /* * Value constants for VAL_ti */ #define TI_RES_MO (0x7) /* reserved */ #define TI_RES_MT (0xf) /* reserved */ /* * user defined constants */ #define MAX_SDU_LEN (0x1) #include "CDG_LEAVE.h" #endif