2011-04-05 09:12:50 Oprofile issues

zied bouazizi (TUNISIA)

Message: 99599

Hello,

I want to compile oprofile with my uclinux distribution to run it on the blackfin board bf537-stamp. I followed uclinux oprofile compiling instructions from this page: docs.blackfin.uclinux.org/doku.php?id=linux-kernel:oprofile.

The problem is that the generated uImage file's size is 14 MB. Unfortunately I can't load the uImage file on my board with such size. The returned error is the following Error: inflate() returned -3.

Which directives shoud I follow. I'm wondering wether I should switch to work on another blackfin board or is there anyother solution to load the 14 MB uImage file on my bf537-stamp.

Thank you for help.

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2011-04-05 11:04:43 Re: Oprofile issues

Mike Frysinger (UNITED STATES)

Message: 99604

that doesnt sound right at all. when i build the default config with OPROFILE, my kernel is a lot smaller than 14MiB. you sure you only enabled oprofile ? maybe you also (incorrectly) enabled gcov ?

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2011-04-05 11:12:45 Re: Oprofile issues

zied bouazizi (TUNISIA)

Message: 99605

No I didn't enable gcov

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2011-04-05 23:04:41 Re: Oprofile issues

Aaron Wu (CHINA)

Message: 99613

Please disable the "Compile the kernel with debug info" in kernel hacking for kernel configuration, this will decrease your uImage size greatly. If not smaller enough please go on to remove some other drivers/libs/apps that you don't need.

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2011-04-06 08:01:30 Re: Oprofile issues

zied bouazizi (TUNISIA)

Message: 99624

Thank you Mr Aaron I got a uImage file sized 6.77 MB.

The problem now is that I couldn't load it on the kernel using the following instructions after copying the uImage file in the /tftpboot/ directory:

tftp 0x1000000 uImage

bootm 0x1000000

what is shown on the terminal program screen is the following:

## Booting kernel from Legacy Image at 01000000 ...

Image Name: bf537-2.6.34.7-ADI-2010R1

Created: 2011-04-06 11:48:07 UTC

Image Type: Blackfin Linux Kernel Image (gzip compressed)

Data Size: 7098161 Bytes = 6.8 MiB

Load Address: 00001000

Entry Point: 001a761c

Verifying Checksum ... OK

Uncompressing Kernel Image ... OK

Starting Kernel at = 001a761c

Linux version 2.6.34.7-ADI-2010R1 (root@PC-de-Zied) (gcc version 4.3.5 (ADI-2010R1-RC4) ) #3

Wed Apr 6 12:48:03 CET 2011

bootconsole [early_shadow0] enabled

bootconsole [early_BFuart0] enabled

early printk enabled on early_BFuart0

Board Memory: 64MB

Kernel Managed Memory: 64MB

Memory map:

fixedcode = 0x00000400-0x00000490

text = 0x00001000-0x0011a7c8

rodata = 0x0011a7c8-0x001794cc

bss = 0x0017a000-0x0018a58c

data = 0x0018a58c-0x0019c000

stack = 0x0019a000-0x0019c000

init = 0x0019c000-0x00d7c000

available = 0x00d7c000-0x03f00000

DMA Zone = 0x03f00000-0x04000000

Hardware Trace Active and Enabled

Boot Mode: 0

Compiled for ADSP-BF537 Rev 0.3

Blackfin Linux support by blackfin.uclinux.org/

Processor Speed: 500 MHz core clock and 125 MHz System Clock

NOMPU: setting up cplb tables

Instruction Cache Enabled for CPU0

External memory: cacheable in instruction cache

Data Cache Enabled for CPU0

External memory: cacheable (write-back) in data cache

Built 1 zonelists in Zone order, mobility grouping off. Total pages: 16002

Kernel command line: root=/dev/mtdblock0 rw clkin_hz=25000000 earlyprintk=serial,uart0,57600

console=ttyBF0,57600 ip=192.168.10.55:192.168.10.63:192.168.0.1:255.255.255.0:bf537-stamp:eth

0:off

PID hash table entries: 256 (order: -2, 1024 bytes)

Dentry cache hash table entries: 8192 (order: 3, 32768 bytes)

Inode-cache hash table entries: 4096 (order: 2, 16384 bytes)

Memory available: 50136k/65536k RAM, (12160k init code, 1125k kernel code, 519k data, 1024k d

ma, 572k reserved)

Hierarchical RCU implementation.

NR_IRQS:138

Configuring Blackfin Priority Driven Interrupts

console [ttyBF0] enabled, bootconsole disabled

Calibrating delay loop... 995.32 BogoMIPS (lpj=1990656)

Security Framework initialized

Mount-cache hash table entries: 512

Blackfin Scratchpad data SRAM: 4 KB

Blackfin L1 Data A SRAM: 16 KB (16 KB free)

Blackfin L1 Data B SRAM: 16 KB (16 KB free)

Blackfin L1 Instruction SRAM: 48 KB (35 KB free)

NET: Registered protocol family 16

Blackfin DMA Controller

stamp_init(): registering device resources

bio: create slab <bio-0> at 0

bfin-spi bfin-spi.0: Blackfin on-chip SPI Controller Driver, Version 1.0, regs_base@ffc00500,

dma channel@7

NET: Registered protocol family 2

IP route cache hash table entries: 1024 (order: 0, 4096 bytes)

TCP established hash table entries: 2048 (order: 2, 16384 bytes)

TCP bind hash table entries: 2048 (order: 1, 8192 bytes)

TCP: Hash tables configured (established 2048 bind 2048)

TCP reno registered

UDP hash table entries: 256 (order: 0, 4096 bytes)

UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)

NET: Registered protocol family 1

msgmni has been set to 97

io scheduler noop registered

io scheduler cfq registered (default)

bfin-uart: Blackfin serial driver

bfin-uart.0: ttyBF0 at MMIO 0xffc00400 (irq = 18) is a BFIN-UART

brd: module loaded

bfin_mii_bus: probed

bfin_mac: attached PHY driver [SMSC LAN83C185] (mii_bus:phy_addr=0:01, irq=-1, mdc_clk=250000

0Hz(mdc_div=24)@sclk=125MHz)

bfin_mac bfin_mac.0: Blackfin on-chip Ethernet MAC driver, Version 1.1

rtc-bfin rtc-bfin: rtc core: registered rtc-bfin as rtc0

bfin-wdt: initialized: timeout=20 sec (nowayout=0)

oprofile: using timer interrupt.

TCP cubic registered

NET: Registered protocol family 17

IP-Config: Gateway not on directly connected network. 08:54:55 UTC (2101280095)

dma_alloc_init: dma_page @ 0x02d64000 - 256 pages at 0x03f00000

Freeing unused kernel memory: 12160k freed

init: exec rc failed

init: Booting to single user mode

init: exec of single user shell failed

iled

init: -/bin/sh exec failed

PHY: 0:01 - Link is Up - 10/Half

init: -/bin/sh exec failed

Booting to single user mode

init: exec of single user shell failed

init: -/bin/sh exec failed

Booting to single user mode

init: exec of single user shell failed

init: -/bin/sh exec failed

Booting to single user mode

init: exec of single user shell failed

init: -/bin/sh exec failed

Booting to single user mode

init: exec of single user shell failed

init: -/bin/sh exec failed

init: -/bin/sh respawning too fast

init: /bin/watchdogd respawning too fast

init: -/bin/sh respawning too fast

init: /bin/watchdogd respawning too fast

init: -/bin/sh exec failed

in/sh exec failed

init: -/bin/sh respawning too fast

init: /bin/watchdogd respawning too fast

init: -/bin/sh respawning too fast

init: /bin/watchdogd respawning too fast

init: -/bin/sh exec failed

in/sh exec failed

init: -/bin/sh respawning too fast

init: /bin/watchdogd respawning too fast

init: -/bin/sh respawning too fast

what is init: -/bin/sh exec failed??

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2011-04-06 13:51:56 Re: Oprofile issues

Mike Frysinger (UNITED STATES)

Message: 99628

does it boot fine without oprofile enabled ?

did you build userspace as FLAT or FDPIC ? did you enable the right exec options in the kernel ?

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2011-04-07 04:24:34 Re: Oprofile issues

zied bouazizi (TUNISIA)

Message: 99646

yes Mike without oprofile enabled I got a uImage file sized of 3 MB at maximum and it boots fine.

I'm quite new with uclinux that's why I left the default kernel configuration. I'v just enabled profiling support , oprofile system profiling in kernel configuration and oprofile in miscellaneous applications. I disabled "compile kernel with debug information" as Aaron advised me. Then I set up the silicon revision (0.3), vendor and the board bf537-stamp

Then in kernel configuration under "Executable file format" the default options enabled are the following:

Kernel support for FDPIC ELF binaries

Kernel support for flat binaries

Enable ZFLAT support

Is that what you mean with building userspace as FLAT or FDPIC.

I really don't know what are exactly the right exec options in the kernel and how can I get them. Is there any link or document to fix these options.

Thank you for help

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2011-04-07 04:59:34 Re: Oprofile issues

Aaron Wu (CHINA)

Message: 99647

Suggest you to start on a clean 2010R1 version, or do a "make distclean" then reconfigure the distribution as needed before compiling again. As everything works well on my side for 2010R1 release with oprofile enabled on a bf537-stamp board. For executable formats please read this document: docs.blackfin.uclinux.org/doku.php?id=toolchain:executable_file_formats

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2011-04-07 06:28:32 Re: Oprofile issues

zied bouazizi (TUNISIA)

Message: 99650

Thank you Aaron. While trying to compile a clean ditribution, I got the same error message even without oprofile compiled with the kernel. It seems that I made wrong exec options for the kernel and I don't know what to enable and disable exactly since I don't know many options.

I'm now focusing on reading how to compile the kernel exactly and I hope to fix out the problem.

The good news is that while compiling oprofile I find in the /blackfin-distribution/romfs/usr/bin directory the files related to oprofile (opannotate, opcontrol, oprofiled, bfin_opcontrol, oparchive, opgprof, ophelp, opreport) and I it means that oprofile has been successfully compiled with linu kernel.

The remaining problem is the previous error shown while loading the uImage file on the board:

init: exec rc failed

init: Booting to single user mode

init: exec of single user shell failed

iled

init: -/bin/sh exec failed

PHY: 0:01 - Link is Up - 10/Half

init: -/bin/sh exec failed

Booting to single user mode

init: exec of single user shell failed

init: -/bin/sh exec failed

Booting to single user mode

init: exec of single user shell failed

init: -/bin/sh exec failed

Booting to single user mode

init: exec of single user shell failed

init: -/bin/sh exec failed

Booting to single user mode

init: exec of single user shell failed

init: -/bin/sh exec failed

init: -/bin/sh respawning too fast

init: /bin/watchdogd respawning too fast

init: -/bin/sh respawning too fast

init: /bin/watchdogd respawning too fast

init: -/bin/sh exec failed

in/sh exec failed

init: -/bin/sh respawning too fast

init: /bin/watchdogd respawning too fast

init: -/bin/sh respawning too fast

init: /bin/watchdogd respawning too fast

init: -/bin/sh exec failed

in/sh exec failed

And I think that Mike has reason to ask me about the exec options for linux kernel. Which basic options shoud I enable or disable?

I hope you can help me to get the right configuration

Thank you for help.

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2011-04-07 06:43:14 Re: Oprofile issues

Aaron Wu (CHINA)

Message: 99651

As already said, "make distclean" will reset all the configs to the default value, for both the kernel and other part of the distributions, or simply download a clean version. For the executable format, have you read the document I mentioned? Our wiki also support search function, please make use of it.

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2011-04-07 06:46:49 Re: Oprofile issues

zied bouazizi (TUNISIA)

Message: 99652

Yes Aaron I am working on it right now. I hope I will help me to get the desirable configuration.

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2011-04-07 11:25:57 Re: Oprofile issues

zied bouazizi (TUNISIA)

Message: 99656

I have always the same problem.

Here are the steps I followed: (after installing toolchain)

1. I installed the distribution blackfin-linux-dist-2010R1-RC5 at the /opt/ directory.

2. I used make menuconfig.

3. I setup the vendor configurations (Analog devices, Board: BF537stamp)

4. I enabled silicon revision (0.3)

5. I enabled : profiling support , oprofile system porfiling under the General setup of the kernel configuration.

6. I disabled "compile the kernel with debug information" under kernel hacking of the kernel configuration.

7. I enabled Kernel support for flat binaries, Enable ZFLAT support and Enable shared FLAT support under "Executable file formats" the FDPIC option is diabled.

8. In the user application space, I enabled oprofile under "miscellaneous applications"

9. I disabled "busybox" since many options makes many errors while compiling it.

10. I disabled inetutils and pngview under "blackfin apps"

11. I enabled Binary format (FLAT) and Install FLAT shared libraries under "blackfin build options".

12. I disabled also mtd-utils (it makes errors during compilation)

and that's all.

So, what could the wrong steps and/or what could be the missing steps to complete the whole configuration??

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2011-04-07 11:26:56 Re: Oprofile issues

zied bouazizi (TUNISIA)

Message: 99657

I have always the same problem.

Here are the steps I followed: (after installing toolchain)

1. I installed the distribution blackfin-linux-dist-2010R1-RC5 at the /opt/ directory.

2. I used make menuconfig.

3. I setup the vendor configurations (Analog devices, Board: BF537stamp)

4. I enabled silicon revision (0.3)

5. I enabled : profiling support , oprofile system porfiling under the General setup of the kernel configuration.

6. I disabled "compile the kernel with debug information" under kernel hacking of the kernel configuration.

7. I enabled Kernel support for flat binaries, Enable ZFLAT support and Enable shared FLAT support under "Executable file formats" the FDPIC option is diabled.

8. In the user application space, I enabled oprofile under "miscellaneous applications"

9. I disabled "busybox" since many options makes many errors while compiling it.

10. I disabled inetutils and pngview under "blackfin apps"

11. I enabled Binary format (FLAT) and Install FLAT shared libraries under "blackfin build options".

12. I disabled also mtd-utils (it makes errors during compilation)

and that's all.

However I got the same errors:

init: exec rc failed

init: Booting to single user mode

init: exec of single user shell failed

iled

init: -/bin/sh exec failed

PHY: 0:01 - Link is Up - 10/Half

init: -/bin/sh exec failed

Booting to single user mode

init: exec of single user shell failed

init: -/bin/sh exec failed

Booting to single user mode

init: exec of single user shell failed

init: -/bin/sh exec failed

Booting to single user mode

init: exec of single user shell failed

init: -/bin/sh exec failed

So, what could the wrong steps and/or what could be the missing steps to complete the whole configuration??

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2011-04-07 22:39:57 Re: Oprofile issues

Aaron Wu (CHINA)

Message: 99672

My advice is to start on a clean 2010R1 version, leaving all the default configuration unchanged, then make. First make sure the complilation for default release will pass then move forward. How to do this is well documented on our wiki: docs.blackfin.uclinux.org/doku.php. If can not pass the default compilation then you should have miss something. By the way you can not disable the busybox. And do not change the executable format unless have clear idea what you are doing. The default release should compile fine with the default configuration so long as you have the right tool chain, dist package and proper package installed on your host machine.

If still have problem building the default package please create a new help thread.

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2011-04-08 11:55:13 Re: Oprofile issues

zied bouazizi (TUNISIA)

Message: 99701

Thank you I could compile oprofile successfully and I could also load load the uImage file (9 MiB) on the board using a clean distribution.

I am trying now to start with oprofile on my board.

Thank you for help