FreeCalypso > hg > fc-magnetite
view src/cs/os/nucleus/nucleus.mak @ 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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line source
# # Makefile for rebuilding the Nucleus libraries: One being in Flash and the # other one being loaded in Internal RAM. # In order to re-build the Nucleus libraries, the flag OS_MK must be set to 1 # # Compilation flags OS_DBG = $(DBG) # $(DBG) for debug; see master.mak for definition OS_FLAGS = $(OS_DBG) $(LENDIAN) $(16INST) -o $(ALGN) $(patsubst %,-i%,$(CFG_INCLUDE)) OS_FLAGS_NOPT = $(OS_DBG) $(LENDIAN) $(16INST) $(ALGN) $(patsubst %,-i%,$(CFG_INCLUDE)) OS_AFLAGS = $(OS_DBG) $(ASMFLAGS) OS_ADEFS = -dOP_L1_STANDALONE=$(OP_L1_STANDALONE) ifeq ($(OP_L1_STANDALONE), 0) OS_ADEFS += -dTI_NUC_MONITOR=$(TI_NUC_MONITOR) endif # Initialization and Abort on error files OS_SRC_INIT := $(OS_NUC_DIR)/inc.c $(OS_NUC_DIR)/dmi.c $(OS_NUC_DIR)/evi.c \ $(OS_NUC_DIR)/pmi.c $(OS_NUC_DIR)/mbi.c $(OS_NUC_DIR)/ioi.c \ $(OS_NUC_DIR)/tmi.c $(OS_NUC_DIR)/qui.c $(OS_NUC_DIR)/hii.c \ $(OS_NUC_DIR)/eri.c $(OS_NUC_DIR)/pii.c $(OS_NUC_DIR)/smi.c \ $(OS_NUC_DIR)/tci.c $(OS_NUC_DIR)/erc.c # Data used due to the init above OS_SRC_DAT := $(OS_NUC_DIR)/mbd.c $(OS_NUC_DIR)/iod.c $(OS_NUC_DIR)/hid.c \ $(OS_NUC_DIR)/pid.c $(OS_NUC_DIR)/qud.c $(OS_NUC_DIR)/erd.c # licence Informations files OS_SRC_LIC := $(OS_NUC_DIR)/lic.c $(OS_NUC_DIR)/rld.c $(OS_NUC_DIR)/lid.c # not used files OS_SRC_NU := $(OS_NUC_DIR)/ioc.c $(OS_NUC_DIR)/ioce.c $(OS_NUC_DIR)/iof.c \ $(OS_NUC_DIR)/quc.c $(OS_NUC_DIR)/quce.c $(OS_NUC_DIR)/quf.c \ $(OS_NUC_DIR)/qus.c $(OS_NUC_DIR)/quse.c \ $(OS_NUC_DIR)/pic.c $(OS_NUC_DIR)/pice.c $(OS_NUC_DIR)/pif.c \ $(OS_NUC_DIR)/pis.c $(OS_NUC_DIR)/pise.c \ $(OS_NUC_DIR)/mbc.c $(OS_NUC_DIR)/mbce.c $(OS_NUC_DIR)/mbf.c \ $(OS_NUC_DIR)/mbs.c $(OS_NUC_DIR)/mbse.c \ $(OS_NUC_DIR)/sms.c $(OS_NUC_DIR)/smse.c \ $(OS_NUC_DIR)/tcs.c $(OS_NUC_DIR)/tcse.c \ $(OS_NUC_DIR)/evf.c $(OS_NUC_DIR)/hic.c # not important files ifeq ($(TOOL_CHOICE),0) OS_SRC_NI_NOPT := $(OS_NUC_DIR)/dmc.c else OS_SRC_NI_NOPT := OS_SRC_NI := $(OS_NUC_DIR)/dmc.c endif OS_SRC_NI += $(OS_NUC_DIR)/dmce.c $(OS_NUC_DIR)/dmd.c \ $(OS_NUC_DIR)/dmf.c $(OS_NUC_DIR)/evc.c $(OS_NUC_DIR)/evce.c \ $(OS_NUC_DIR)/evd.c $(OS_NUC_DIR)/pmf.c $(OS_NUC_DIR)/smf.c \ $(OS_NUC_DIR)/tcf.c $(OS_NUC_DIR)/tmf.c $(OS_NUC_DIR)/rlc.c # All files in Flash OS_SRC_FLASH := $(OS_SRC_INIT) $(OS_SRC_DAT) $(OS_SRC_LIC) $(OS_SRC_NU) $(OS_SRC_NI) OS_SRC_FLASH_NOPT := $(OS_SRC_NI_NOPT) # C files in Internal RAM OS_SRC_INT_RAM := $(OS_NUC_DIR)/csc.c $(OS_NUC_DIR)/tmc.c \ $(OS_NUC_DIR)/pmc.c $(OS_NUC_DIR)/pmce.c $(OS_NUC_DIR)/pmd.c \ $(OS_NUC_DIR)/smc.c $(OS_NUC_DIR)/smce.c $(OS_NUC_DIR)/smd.c \ $(OS_NUC_DIR)/tcc.c $(OS_NUC_DIR)/tcce.c $(OS_NUC_DIR)/tcd.c \ $(OS_NUC_DIR)/tms.c $(OS_NUC_DIR)/tmse.c $(OS_NUC_DIR)/tmd.c # Assembly files in Internal RAM OS_SRC_ASM_INT_RAM := $(OS_NUC_DIR)/tct.s $(OS_NUC_DIR)/tmt.s # Object definitions (Flags) OS_FLASH_OBJ := $(patsubst ../%.c,$(TEMPORARY_FILE_DIR)/%.obj,$(filter %.c,$(OS_SRC_FLASH))) CFG_OBJS += $(OS_FLASH_OBJ) CFG_DEPS += $(OS_FLASH_OBJ:.obj=.d) OS_FLASH_NOPT_OBJ := $(patsubst ../%.c,$(TEMPORARY_FILE_DIR)/%.obj,$(filter %.c,$(OS_SRC_FLASH_NOPT))) CFG_OBJS += $(OS_FLASH_NOPT_OBJ) CFG_DEPS += $(OS_FLASH_NOPT_OBJ:.obj=.d) OS_INT_RAM_OBJ := $(patsubst ../%.c,$(TEMPORARY_FILE_DIR)/%.obj,$(filter %.c,$(OS_SRC_INT_RAM))) CFG_OBJS += $(OS_INT_RAM_OBJ) CFG_DEPS += $(OS_INT_RAM_OBJ:.obj=.d) OS_ASM_INT_RAM_OBJ := $(patsubst ../%.s,$(TEMPORARY_FILE_DIR)/%.obj,$(filter %.s,$(OS_SRC_ASM_INT_RAM))) CFG_OBJS += $(OS_ASM_INT_RAM_OBJ) # All files in Flash OS_EXT_FLASH_OBJ := $(OS_FLASH_OBJ) $(OS_FLASH_NOPT_OBJ) # All files in Internal RAM OS_INTERNAL_RAM_OBJ := $(OS_INT_RAM_OBJ) $(OS_ASM_INT_RAM_OBJ) # Libraries all: $(OS_INT_RAM_LIB) $(OS_FLASH_LIB) $(OS_FLASH_LIB): $(OS_EXT_FLASH_OBJ) $(MKDIR) $(dir $@) $(AR470) r $(OS_FLASH_LIB) $(OS_EXT_FLASH_OBJ) $(OS_INT_RAM_LIB): $(OS_INTERNAL_RAM_OBJ) $(MKDIR) $(dir $@) $(AR470) r $(OS_INT_RAM_LIB) $(OS_INTERNAL_RAM_OBJ) # Objects $(OS_FLASH_OBJ) : $(TEMPORARY_FILE_DIR)/%.obj: ../%.c $(COMPILER) $(OS_FLAGS) -fr$(@D) $< $(OS_FLASH_NOPT_OBJ) : $(TEMPORARY_FILE_DIR)/%.obj: ../%.c $(COMPILER) $(OS_FLAGS_NOPT) -fr$(@D) $< $(OS_INT_RAM_OBJ) : $(TEMPORARY_FILE_DIR)/%.obj: ../%.c $(COMPILER) $(OS_FLAGS) -fr$(@D) $< ifeq ($(TOOL_CHOICE),0) $(OS_ASM_INT_RAM_OBJ) : $(TEMPORARY_FILE_DIR)/%.obj: ../%.s $(ASM470) $(OS_AFLAGS) $(OS_ADEFS) $< $@ endif ifeq ($(TOOL_CHOICE),3) $(OS_ASM_INT_RAM_OBJ) : $(TEMPORARY_FILE_DIR)/%.obj: ../%.s $(COMPILER) $(OS_AFLAGS) $(OS_ADEFS) -fr=$(@D) $< endif