TMS320F280049C-Q1: Combining Libraries with Archiver

The plot thickens....

The archiver says it included the libs:

./ar2000 t Sygnal-MCM-Library.lib 
...
       728   Thu Dec  8 16:54:59 2022    c28x_fpu_dsp_library.lib
     56704   Thu Dec  8 16:54:59 2022    c28x_vcu0_library_fpu32.lib

AND the name utility says the supposedly missing symbols are present:

./nm2000 Sygnal-MCM-Library.lib 
...
00000000 t .text:_MCM_overrideFilterInit
00000000 U _FIR_f32_calc
00000000 U _FIR_f32_init
00000000 U _MCM_configGetMCMGlobal
...
00000000 U _eepromWritePages
00000000 U _getCRC16P1_vcu
00000000 U _i2cGetState
...
00000000 T _CRC_calcCrc8
00000000 U _getCRC8_vcu
0000002f t $C$L1

Digging even deeper by turning on the -L option, I find that all of these symbols in question have a "UNDEFINED_EXTERNAL" section name:

[59]    |0x00000000|C_EXT   |UNDEFINED EXTERNAL |_FIR_f32_calc
[55]    |0x00000000|C_EXT   |UNDEFINED EXTERNAL |_FIR_f32_init

Any ideas?  This feels similar to like a C/C++ name conflict, but clearly the symbol names are there in the archive.

Trey,

We are reaching out to compiler team to help on this. Please expect response by later today.

Regards, Santosh

George,

Thank you for that excellent explanation.  Based on my understanding, there are two paths to get to a single lib that has all the symbol information.

1) Add all the sources from the dependent libraries and compile them with the main library source.

2) Use the x option in the archiver to dump all the object files from the dependent libraries.  Then add each dumped object file to the main library using the a option of ar2000.

Is my understanding correct?

Thanks!

Trey

George,

I'm attempting to go down path number 2 that I outlined in the previous post, but am still running into some trouble.  I've been able to successfully extract the object files from the libs, but when I go to combine them with the lib that the project builds, the archiver tells me the object file has a corrupt member header:

/Applications/ti/ccs1200/ccs/tools/compiler/ti-cgt-c2000_22.6.0.LTS/bin/ar2000 x /Firmware/Sygnal-MCM-Library/../common/f28004x/floatingptdsp/lib/c28x_fpu_dsp_library_coff.lib
 
Building target: "Sygnal-MCM-Library.lib"
Invoking: C2000 Archiver
"/Applications/ti/ccs1200/ccs/tools/compiler/ti-cgt-c2000_22.6.0.LTS/bin/ar2000" r "Sygnal-MCM-Library.lib" "./device.obj" "./f28004x_codestartbranch.obj" "./f28004x_globalvariabledefs.obj" "./main.obj" "./application/mcm-binaryconfig.obj" "./application/mcm-canproc.obj" "./application/mcm-cla.obj" "./application/mcm-closedloop.obj" "./application/mcm-commissioning.obj" "./application/mcm-config.obj" "./application/mcm-control.obj" "./application/mcm-factory.obj" "./application/mcm-fault-behavior.obj" "./application/mcm-fault.obj" "./application/mcm-heartbeat.obj" "./application/mcm-ifcontrol.obj" "./application/mcm-init.obj" "./application/mcm-inputctrl.obj" "./application/mcm-intercom.obj" "./application/mcm-main.obj" "./application/mcm-missing-signal.obj" "./application/mcm-outputctrl.obj" "./application/mcm-override-filters.obj" "./application/mcm-override.obj" "./application/mcm-report.obj" "./application/mcm-state.obj" "./application/mcm-task.obj" "./application/mcm-vehicledata.obj" "./application/mcm-virt-ifcontrol.obj" "./can_protocol/cascade.obj" "./can_protocol/closedloop.obj" "./can_protocol/commissioning.obj" "./can_protocol/config.obj" "./can_protocol/control.obj" "./can_protocol/error.obj" "./can_protocol/fail-op1.obj" "./can_protocol/fail-op2.obj" "./can_protocol/fault.obj" "./can_protocol/heartbeat.obj" "./can_protocol/i15765app.obj" "./can_protocol/ident.obj" "./can_protocol/kar-tech.obj" "./can_protocol/mcmglobal.obj" "./can_protocol/nlpid.obj" "./can_protocol/oscc.obj" "./can_protocol/override.obj" "./can_protocol/pid.obj" "./can_protocol/relay.obj" "./can_protocol/report.obj" "./can_protocol/signal.obj" "./can_protocol/sygnalglobal.obj" "./can_protocol/sygnalstatic.obj" "./can_protocol/vehicledata.obj" "./can_protocol/virt-if.obj" "./cla/mcm-cla-tasks.obj" "./control/DCL_PID_C4.obj" "./control/DCL_clamp_C1.obj" "./control/DCL_error.obj" "./driverlib/adc.obj" "./driverlib/asysctl.obj" "./driverlib/can.obj" "./driverlib/cla.obj" "./driverlib/clapromcrc.obj" "./driverlib/clb.obj" "./driverlib/cmpss.obj" "./driverlib/cputimer.obj" "./driverlib/dac.obj" "./driverlib/dcc.obj" "./driverlib/dcsm.obj" "./driverlib/dma.obj" "./driverlib/ecap.obj" "./driverlib/epwm.obj" "./driverlib/eqep.obj" "./driverlib/flash.obj" "./driverlib/fsi.obj" "./driverlib/gpio.obj" "./driverlib/hrcap.obj" "./driverlib/hrpwm.obj" "./driverlib/i2c.obj" "./driverlib/interrupt.obj" "./driverlib/lin.obj" "./driverlib/memcfg.obj" "./driverlib/pga.obj" "./driverlib/pmbus.obj" "./driverlib/sci.obj" "./driverlib/sdfm.obj" "./driverlib/spi.obj" "./driverlib/sysctl.obj" "./driverlib/version.obj" "./driverlib/xbar.obj" "./drivers/mcm-analog.obj" "./drivers/mcm-dac.obj" "./drivers/mcm-ecap.obj" "./drivers/mcm-gpio.obj" "./drivers/mcm-inputxbar.obj" "./drivers/mcm-pwm.obj" "./drivers/mcm-spi.obj" "./drivers/mcm-syscontrol.obj" "./drivers/mcm-watchdog.obj" "./drivers/mcm-xint.obj" "./sygnal_drivers/can.obj" "./sygnal_drivers/eeprom.obj" "./sygnal_drivers/i2c.obj" "./sygnal_drivers/timers.obj" "./sygnal_drivers/uart.obj" "./sygnal_utilities/RingBuf.obj" "./sygnal_utilities/bootloader-symbols.obj" "./sygnal_utilities/data_extractor.obj" "./sygnal_utilities/i15765.obj" "./sygnal_utilities/uart_debug.obj" "./sygnal_utilities/uds_tx.obj" "./utilities/crc.obj" "./virt_if_drivers/virtif-kartech.obj" "/Users/germanpm/Polymorphic_Labs_LLC/Sygnal/Firmware/common/f28004x/floatingptdsp/lib/c28x_fpu_dsp_library.lib" "/Users/germanpm/Polymorphic_Labs_LLC/Sygnal/Firmware/common/f28004x/vcu0/lib/c28x_vcu0_library_fpu32.lib" 
  ==>  new archive 'Sygnal-MCM-Library.lib'
  ==>  building archive 'Sygnal-MCM-Library.lib'
Finished building target: "Sygnal-MCM-Library.lib"
 
/Applications/ti/ccs1200/ccs/tools/compiler/ti-cgt-c2000_22.6.0.LTS/bin/ar2000 r  ./FIR_f32.obj
makefile:297: recipe for target 'post-build' failed
  -->  error: Corrupt member header: './FIR_f32.obj'
gmake[2]: [post-build] Error 1 (ignored)

It seems to me this should work.  I was originally using the index library c2k supplies and wasn't getting any object files out.  Then I switched to using their coff format lib (my project is coff) and started to get the object files from dump from the archiver.  I just can't seem to combine the two.  This should work right?  I'm currently on 22.6.0 LTS.

Trey

Its a user experience thing.  I want to hand my customers the simplest possible package, so to that end I want to combine all the object into a single lib.

Also thanks for noticing the file name boo boo.  I had used the ${output} macro as is done in the main archiver properties, but clearly there is no defined ${output} for post build steps.  I set the filename manually and its working and progress is being made.

Thanks for pointing me in the right direction George!