CCS/DRA718: Can not add breakpoints when debugging SPL using CCS and JTAG

Hi,

can you check if you can find something useful in this document:
www.ti.com/.../sprac17b.pdf

Regards,
Yordan

Hi Yordan:

there is nothing about debugging spl using ccs in above doc, thanks.

I want to add breakpoints on spl code using ccs ,but breakpoints can not be added ,I using u-boot-spl as load image, do I need to change some compilation options to add symbol information or any?

Hi,

can you check if any of the links posted in this thread can help:
e2e.ti.com/.../583250

Also, can you give some details like what steps you do and what happens when you try to set breakpoint?

Regards,
Yordan

Hi Venkat:
the u-boot is 2016.04 and the ccs is 6.1.2.00015 .I have changed following review.omapzoom.org/
but another question ,How can I disable LPAE? in uboot or CCS? any manual?
thanks

Hi,

In your u-boot defconfig, set CONFIG_ARMV7_LPAE=n

review.omapzoom.org/gitweb

regards,
Venkat

Hi Venkat:
I still can not add breakpoints to the source file opened from view->modules->file ,besides ,I can not jump to some function in source file when I ctrl+click from mouse ,the following is my steps:
a. after I connect A15 ,I change cpsr T register from 1 to 0.
b.I load u-boot-spl.bin to memory 0x40300000 on tools ->load memory and I set width 32bits
c.I load u-boot-spl as symbols on run->load symbols
d.I change PC register to 0x40300000
e.I open spl.c file from view->modules-> file and add breakpoints to the 1st line of board_r function,but I can not add breakpoints

thanks

Hi,

Are you using a TI EVM or a custom board? If you are using a TI EVM, you can follow the steps below.

1. Add a while loop in the SPL.
2. Load SPL binary via peripheral boot using dra7xx-bootswitch [2]. Refer to [1] below.
3. Connect CCS. Load symbols from the file u-boot-spl.
4. Place breakpoints and jump out of infinite loop.

[1] refers to u-boot 2014.07 but the steps remain the same for u-boot 2016.05. An updated version of the app note for u-boot 2016.05 should be out in a week.

[1] Using Peripheral Boot and DFU for Rapid Development on Jacinto 6 Devices
www.ti.com/.../sprac65

[2] git.ti.com/.../README.md

regards,
Venkat

Hi venkat：

How can I jump out of while(1) infinite loop?besides ,following your recipe ,there is no way to enter some function from source when ctrl+ single click?

thanks

Hi,

See this patch review.omapzoom.org/

I normally call wait_for_debugger() from the place where I want the code to halt. After loading the symbols, set the global ccs_dbg_flag to 0 and start single stepping.

>> besides ,following your recipe ,there is no way to enter some function from source when ctrl+ single click

Sorry. I am not familiar with this feature.

regards,
Venkat.

Hi venkat:

after I load symbols from the u-boot-spl ,I add breakpoints to hwinit-common.c ->early_system_init->hw_data_init() ,but it still indicates that no code is associated with "../arch/arm/lib/hwinit-common.c" ,line 148 in "......" ,the the actual path of  hwinit-common.c is at arch/arm/cpu/armv7/omap-common/hwinit-common.c

thanks

Hi venkat:

   after I load symbols from u-boot-spl ,I add breakpoints(type is code composor studio) to hwinit-common.c->early_system_init->hw_data_init, but it still indicates that

"no code is associated with "../arch/arm/lib/hwinit-common.c" ,line 146 in “..........” , the actual path of hwinit-common.c is at arch/arm/cpu/armv7/omap-common/hwinit-common.c  .

  So is there any way that I can set my path of u-boot after I load symbols or anything?

thanks

Hi venkat:

after I load symbols from u-boot-spl ,I add breakpoints(type is code composor studio) to hwinit-common.c->early_system_init->hw_data_init, but it still indicates that

"no code is associated with "../arch/arm/lib/hwinit-common.c" ,line 146 in “..........” , the actual path of hwinit-common.c is at arch/arm/cpu/armv7/omap-common/hwinit-common.c .

So is there any way that I can set my path of u-boot after I load symbols or anything?

thanks

Hi,

Did you take the patch

review.omapzoom.org/
spl: dra7xx: enable debug flags for CCS stepping

I build u-boot on the same machine I am running CCS. CCS automatically find the source file. If not, please look in the CCS documentation on browsing for the source file or setting up source lookup directories.

regards,
Venkat

Hi vencat:
do you compile u-boot on ccs or ubuntu? I compile u-boot through ubuntu

thanks

Hi VenKat:
I can add breakpoints now ,I am sorry that I did not reply you because of other more important things.
the reason that I can not find the code is that I compile as this:
make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- O=dra718-evm dra7xx_evm_config all

after I change to this,it works：
make ARCH=arm CROSS_COMPILE==arm-linux-gnueabihf- dra7xx_evm_config all

thank you very much
regards